PLAYING RING

Description

[0001] The present invention relates to toys, in particular a rotatable toy suitable for children's play, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer rim (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer rim (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer rim (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position. State of the art

[0002] Toys are generally objects used for play. Typically, toys are used by children, although adults also use them. A toy is valued for its own sake and for the joy of playing. A toy provides enjoyment in engaging with its material, its functions, and its possibilities. Using a toy allows the natural play instinct to be satisfied. A toy can increase the desire for movement or the need for communication. Toys, in general, do not necessarily and primarily serve specific learning purposes; however, play and toys can represent spaces and means that can promote children's development. Through play, physical, cognitive, and social skills and competencies can be developed and practiced. Playing with easy-to-use toys has the reputation that, for example,Nervousness can be reduced through playing with these toys. Such easy-to-use toys are also used in connection with attention deficit hyperactivity disorder (ADHD) or autism. Easy-to-use toys can also be used to break bad habits such as smoking or nail-biting, or to reduce stress. For example, so-called stress balls can be used to help children withdraw from stressful situations.

[0003] A spinning top is one of the oldest and best-known toys. Spinning tops are objects that rotate around an axis. While a spinning top can move freely, it can also be forced in a specific direction by an axis. As a children's toy, a spinning top is typically spun around a vertically held axis on a surface and then allowed to maintain approximately the same direction for a while, moving around the surface. Besides being toys, spinning tops have historically been used for games of chance and fortune-telling. Examples of toy spinning tops include humming tops, throwing tops, whipping tops, roly-poly tops (revolving tops), and gyrotwisters.

[0004] Rotating toys are therefore excellent choices, providing fun and enjoyment and allowing children to satisfy their playful instincts. Playing with a rotating toy is an ideal way to, for example, banish boredom while waiting. In particular, lightweight and portable rotating toys offer a first-class opportunity to take playtime and the fun and enjoyment of the toy with you wherever you go.

[0005] Prior art finger spinners often have two or three "gyroscope arms," ​​as described in DE 20 2017 103 662 U1, CN 107 754 323 A, CN 107 395 815 A, or US 9,914,063 B1, where the finger spinners must be centered and held in place by lateral end caps. CN 107 320 973 A discloses a finger spinner that has a lateral end cap with a central recess into which a second end cap is inserted to hold the finger spinner in place. Prior art finger spinners are primarily designed to provide fun and enjoyment from the rotation of the spinning body.

[0006] The object of the present invention is to provide a new toy, in particular a rotatable toy ring, suitable for children's play, which can be printed with images of toy figures on the outwardly facing visible surface of the flywheel located between the side caps, and from which one of the images can be selected by abruptly stopping the flywheel during its rotation. This object is achieved according to the invention by the technical teaching of the independent claims. Further advantageous embodiments of the invention will become apparent from the dependent claims, the description, the figures, and the examples. Description of the invention

[0007] Surprisingly, it was found that the problem of the present invention is solved by a rotatable toy suitable for a children's game, consisting of a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are oriented at the outer edge (R1) and (R2) against the freely rotatable flywheel. (S) are movable,to fix the freely rotatable flywheel (S) in its position. Another embodiment of the present invention relates to a rotatable toy suitable for a children's game, consisting of a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) with a first central recess (A1) and a centered ball bearing (L) with a second central recess (A2), and the centered ball bearing (L) is inserted in the first central recess (A1) of the outer shell, the first disc-shaped end cap (K1) has an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the first centered extension (P1) is suitable forThe second central recess (A2) of the centered ball bearing (L) and the second centered extension (P2) are suitable for engaging in the second central recess (A2) of the centered ball bearing (L) and / or in the first centered extension (P1) of the first disc-shaped side cap (K1). Preferably, the anchoring of the two side caps (K1) and (K2) in the flywheel (S) is such that the disc-shaped side caps (K1) and (K2) are movable or pressed against the freely rotatable flywheel (S) in order to fix the freely rotatable flywheel (S) in its position or, if it is rotating, to stop it.

[0008] In other words, the present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) with a first central recess (A1) and a centered ball bearing (L) with a second central recess (A2), and the centered ball bearing (L) is inserted in the first central recess (A1) of the outer shell (M), the first disc-shaped end cap (K1) has an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the first centered extension (P1) is suitable forto engage in the second central recess (A2) of the centered ball bearing (L) and the second centered extension (P2) is suitable to engage in the second central recess (A2) of the centered ball bearing (L) and / or in the first centered extension (P1) of the first disc-shaped side cap (K1).

[0009] The present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) with a first central recess (A1) and a centered ball bearing (L) with a second central recess (A2), and the centered ball bearing (L) is inserted in the first central recess (A1) of the outer shell (M), characterized in that the first disc-shaped end cap (K1) has an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the first centered extension (P1) is suitable forto engage in the second central recess (A2) of the centered ball bearing (L) and the second centered extension (P2) is suitable to engage in the second central recess (A2) of the centered ball bearing (L) as well as in the first centered extension (P1) of the first disc-shaped side cap (K1).

[0010] In other words, the present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the two disc-shaped end caps having outer surfaces and each having a centered extension on the inner surface, which is suitable for engaging in the second central recess of the centered ball bearing and / or in the centered extension of the opposing disc-shaped end cap.

[0011] In other words, the present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the outer shell concentrically surrounds the centered ball bearing, and the two disc-shaped end caps have outer surfaces and each has a centered extension on its inner surface, which is suitable for engaging in the second central recess of the centered ball bearing and / or in the centered extension of the opposing disc-shaped end cap.

[0012] As explained above, the anchoring of the side caps in the flywheel body is designed in such a way that the rotating flywheel body is stopped abruptly by pressing the side caps together, preferably at the outer edge, or the flywheel body is fixed in its position by pressing the side caps together, preferably at the outer edge.

[0013] Furthermore, the present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for positive engagement with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position.

[0014] In other words, the present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer rim (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer rim (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), the first centered extension (P1) being suitable for engaging in the second central recess (A2) of the centered ball bearing (L) and the second centered extension (P2) being suitable forto engage in the second central recess (A2) of the centered ball bearing (L) and / or in the first centered extension (P1) of the first disc-shaped side cap (K1), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) against the freely rotating flywheel (S) in order to fix the freely rotating flywheel (S) in its position.

[0015] The term "freely rotatable" is used here as a synonym for "rotatable" or "easily rotatable" and is intended to clarify that the flywheel (S) can be easily set in motion by children without significant effort.

[0016] In preferred embodiments, the rotatable game body has disc-shaped side caps (K1) and (K2) with a diameter in the range of 0.5 to 1.2 times the outer diameter of the flywheel body (S).

[0017] In preferred embodiments of the rotatable game body of the present invention, the disc-shaped side caps (K1) and (K2) at the outer edges (R1) and (R2) are reversibly movable relative to the freely rotatable flywheel (S) by an applied pressure force (AF) in order to fix the freely rotatable flywheel (S) in its position. In other words, it is preferred that the disc-shaped side caps (K1) and (K2) at the outer edges (R1) and (R2) are reversibly movable relative to the freely rotatable flywheel (S) by an applied pressure force in order to fix the freely rotatable flywheel (S) in its position and, after the applied pressure force subsides, return to the position before the pressure force was applied or resume the distance to the freely rotatable flywheel (S) as before the pressure force was applied.

[0018] In preferred embodiments of the rotatable game piece of the present invention, the freely rotatable flywheel (S) with its outer shell (M) is cylindrical, and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable. It is therefore particularly preferred that the outer radius of the outer shell (M) of the flywheel (S) is constant. The printability of the cylindrical shell of the flywheel (S) with images of, for example, two-dimensional game pieces is essential for the suitability of the rotatable game piece as a game ring for children's play. It is essential for children's play that the rotating flywheel (S) is stopped abruptly, preferably by pressing both end caps (K1) and (K2) at two opposite points on the outer edge (R1) and (R2), thereby selecting an image that is indicated by a mark on one end cap or by the user's finger.However, the outward surface of the shell of the flywheel (S) can only be printed if the surface is curved in the longitudinal direction according to the cylindrical shape but flat in the transverse direction, i.e. parallel to the axis of rotation, and not concave or convex. The printable visible surface area of ​​the shell of the flywheel (S) is at least 25 mm² per image, preferably 50 mm², preferably 70 mm², preferably 80 mm², preferably 90 mm², preferably 100 mm², preferably 110 mm², preferably 120 mm², preferably 130 mm², preferably 140 mm², preferably 150 mm², preferably 160 mm², preferably 170 mm², preferably 180 mm², preferably 190 mm², preferably 200 mm², preferably 210 mm², preferably 220 mm².

[0019] The outer shell (M) is preferably cylindrical or preferably has a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape.

[0020] Preferably, the first disc-shaped side cap (K1) and / or the second disc-shaped side cap (K2) is / are cylindrical or has / have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape. The triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape is preferably a regular polygon.

[0021] Furthermore, the freely rotatable flywheel (S) with the outer shell (M) is preferably cylindrical and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable.

[0022] The wall thickness (W) of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is preferably constant. The outer radius of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is preferably constant.

[0023] In preferred embodiments, the distance (B0) between the inner surfaces (I1, I2) of the opposing disc-shaped side caps (K1) and (K2) is greater than the width (B3) of the flywheel body (S). It is further preferred that the distance (B0) between the inner surfaces (I1, I2) of the opposing disc-shaped side caps (K1) and (K2) is greater than the width (B3) of the outer shell (M) of the flywheel body (S). In other words, it is preferred that the distance (B0) between the inner surfaces of the opposing disc-shaped side caps (K1) and (K2) is the sum of the width (B3) of the flywheel body (S), the distance (B4) of the flywheel body to the inner surface of the first disc-shaped side cap (K1), and the distance (B5) of the flywheel body to the inner surface of the second disc-shaped side cap (K2).

[0024] The "Flying body",As used here, this is the part of the rotatable game piece that can be set into rotation. In this process, the

[0025] The flywheel preferably rotates about a central axis perpendicular to the flywheel. The flywheel preferably comprises an outer shell and a centered ball bearing. The outer shell and the centered ball bearing each preferably have a central recess. The central recess of the outer shell is referred to herein as the first central recess, while the central recess of the centered ball bearing is referred to herein as the second central recess. Thus, according to the invention, the flywheel preferably comprises an outer shell with a first central recess and a centered ball bearing with a second central recess. According to the invention, the outer shell with the first central recess and the centered ball bearing with the second central recess form a unit, which is referred to as the flywheel.Thus, the recess of the outer shell, referred to as the first central recess, can also be referred to as the first central recess of the flywheel, while the central recess of the centered ball bearing, referred to as the second central recess, can be referred to as the second central recess of the flywheel.

[0026] According to the invention, the outer shell surrounds the centered ball bearing in a concentric manner. This means that the distance of the outer edge of the outer shell relative to the centered ball bearing and to the center of the flywheel is preferably constant, depending on the shape of the outer shell. If the outer edge of the outer shell is, for example, cylindrical, the outer radius of the outer cylindrical shell is constant relative to the center of the flywheel. If the outer shell is cylindrical, the outer cylindrical outer shell has a constant outer diameter according to the invention. If the first central recess of the outer shell or of the flywheel is also cylindrical, the first central recess also has a constant diameter according to the invention.Preferably, the flywheel body has a cylindrical outer shell with an outer and inner surface, hereinafter also referred to as a flywheel ring. The side of the outer shell designated as the outer surface can be referred to as the outer rim. The side designated as the inner surface of the outer shell preferably represents the outer rim of the first central recess of the outer shell or flywheel body. In preferred embodiments, the outer shell of the rotatable flywheel body is cylindrical, and the outer cylindrical surface, also referred to as the lateral surface, is flat and printable. "Flat," as used herein, means that the outer cylindrical surface or lateral surface of a cylindrical outer shell is neither concave nor convex, that is, that the outer radius or outer diameter of the cylindrical outer shell is flat over the entire width (B 3).The height of the cylindrical outer shell is constant across its entire circumference. In other words, the outer shell of the rotatable flywheel has no dents or irregularities on its outer cylindrical surface.

[0027] A right circular cylinder with a central recess along its axis is also called a hollow cylinder. For an outer shell of the rotatable flywheel in the form of a hollow cylinder, the determining parameters, besides the height or width (B 3 ) of the outer shell of the rotatable flywheel, are the outer radius of the outer shell and the inner radius of the outer shell, where the inner radius, as used herein, is also referred to as the outer radius of the first central recess. The wall thickness (W) of a hollow cylinder is therefore the difference between the outer radius of the outer shell and the inner radius of the outer shell, that is, the outer radius of the first central recess of the outer shell or flywheel. In preferred embodiments, the outer shell of the rotatable flywheel is cylindrical and particularly preferably has the form of a hollow cylinder, wherein the outer cylindrical surface orThe outer surface of the rotatable flywheel is flat and printable, wherein the wall thickness (W) of the outer surface of the rotatable flywheel is in the form of a hollow cylinder and is constant. If the wall thickness (W) of an outer surface of the rotatable flywheel is in the form of a hollow cylinder and is constant, the outer cylindrical surface, as used herein, is flat. It is therefore preferred that the outer cylindrical surface is not convex, i.e., that the wall thickness (W) at, for example, half the width (B3) of the outer surface of the rotatable flywheel is no greater than at the edge of the outer surface of the rotatable flywheel. It is also further preferred that the outer cylindrical surface is not concave, i.e., that the wall thickness (W) at, for example, half the width (B3) of the outer surface of the rotatable flywheel is no less than at the edge of the outer surface of the rotatable flywheel.A cylindrical outer shell of a rotatable flywheel in the form of a hollow cylinder with a constant wall thickness (W) is rollable, meaning it can be rolled across a surface. Surprisingly, it was found that a cylindrical outer shell of a rotatable flywheel in the form of a hollow cylinder with a constant wall thickness (W) is particularly suitable and advantageous for providing a printable surface on the outer cylinder surface. Surprisingly, it was found that the entire cylinder surface, or outer surface, is printable over the entire circumference of the outer shell of the freely rotatable flywheel only if the cylinder surface is flat.

[0028] The present invention therefore preferably relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the flywheel (S) with the outer shell (M) is cylindrical and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable, wherein preferably the wall thickness (W) of the cylindrical outer shell of the flywheel is constant. According to the invention, the centered ball bearing is positively engaged within the first central recess of the outer shell. Positive-engaging connections are created by the interlocking of at least two connecting partners. This prevents the connecting partners from disengaging even without or during interrupted force transmission. For example, if the centered ball bearing is cylindrical on the outside, i.e., the outer surface or outer edge of the centered ball bearing, and the first central recess of the outer shell or flywheel is also cylindrical,The first central recess preferably has a diameter that corresponds to, or corresponds to, the outer diameter of the cylindrical ball bearing, such that the centered ball bearing can be positively engaged in the first central recess. "Corresponds to the diameter" as used herein also means that a part which is positively engaged in a recess of a second part has an outer diameter which preferably corresponds substantially to the diameter of the recess of the second part. It is known to the average person skilled in the art how a part with an outer diameter and a second part with a recess of a certain diameter can be manufactured so that they can be positively engaged in one another. The engagement of a part with an outer diameter in the recess of a second part,wherein the diameter of the recess of the second part corresponds to the outer diameter of the first part, this can also be described herein as inserting or engaging this first part into the recess of the second part. Preferably, the enclosing, inserting, or engaging of a first part with an outer diameter into the recess of a second part constitutes a positive-locking enclosing, insertion, or engagement.

[0029] For the positive-locking engagement of the centered ball bearing in the first central recess of the outer shell or flywheel, the outer shell can, for example, have a groove on its inner surface. Grooves serve to fix, guide, or countersink components as positive-locking connections. However, the positive-locking engagement of the centered ball bearing in the first central recess of the outer shell or flywheel, where the outer shell has a groove on its inner surface, is given here only as a non-limiting example. For the positive-locking engagement of the centered ball bearing in the first central recess of the outer shell or flywheel, a person skilled in the art can use any suitable method or procedure known from manufacturing technology.

[0030] Any suitable ball bearings known from the prior art can be used for the flywheel according to the invention. Preferably, the flywheel has a centered rolling bearing, more preferably a centered ball bearing. Rolling bearings are bearings in which, unlike the lubrication in plain bearings, rolling elements between an inner ring and an outer ring reduce frictional resistance. They serve to fix axles and shafts, absorbing radial and / or axial forces depending on their design and simultaneously enabling the rotation of the shaft or the components mounted on such a supported axle (e.g., a wheel). Rolling friction occurs primarily between the three main components: the inner ring, the outer ring, and the rolling elements. Ball bearings are the most commonly used rolling bearings because they offer the widest selection of different dimensions and are cost-effective.The centered ball bearing can be made of various materials, such as different plastics, glass, wood, or metals like aluminum. Preferably, the centered ball bearing is made of polypropylene (PP), and more preferably of polyvinyl chloride (PVC), and particularly preferably of polyoxymethylene (POM). The material of the balls is preferably glass, preferably from the group of alkaline earth silicate glasses, such as soda-lime glass, or more preferably of polypropylene (PP), polyethylene (PE), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), or polyetheretherketone (PEEK), and more preferably of aluminum oxide (Al₂O₃), zirconium oxide (ZrO₂), silicon nitride (Si₃N₄), or silicon carbide (SiC), and particularly preferably of stainless steel, such as SUS 304 or SUS 316.Thus, a person skilled in the art can use any suitable ball bearing known from the prior art for the present invention. The average person skilled in the art is able to select a suitable ball bearing based on the present disclosure, which can be positively engaged in the first central recess of the outer shell or flywheel of the rotatable play element according to the invention.

[0031] The ball bearings known from the prior art can, for example, be available in various designs with different diameters. In a preferred embodiment, a flywheel can be assembled such that an outer shell of the flywheel is provided with a defined outer diameter and a defined diameter of the first central recess of the outer shell, and the centered ball bearing from the prior art is selected such that the centered ball bearing has an outer diameter that corresponds to the defined diameter of the first central recess of the outer shell, so that the centered ball bearing can be positively engaged in the outer shell of the flywheel.If, for example, a centered ball bearing from the prior art with a corresponding defined outer diameter cannot be provided, or if, for example, as in further preferred embodiments, a larger or smaller ball bearing is preferably to be positively fitted, an outer shell of the flywheel body can be provided, for example, which has a different diameter of the first central recess of the outer shell of the flywheel body, corresponding to the outer diameter of the respective centered ball bearing.Preferably, various centered ball bearings, which have different outer diameters, can be positively engaged in an outer shell of the flywheel body with, for example, a defined outer diameter, in which different embodiments of the outer shell of the flywheel body with different defined outer diameters are provided, which differ by the different diameters of the first central recess of the outer shell of the flywheel body, so that the corresponding suitable centered ball bearings, which each have different outer diameters, can each be positively engaged in a corresponding outer shell with a first central recess with a suitable corresponding diameter.

[0032] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the centered ball bearing is a rolling bearing.

[0033] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position, wherein the centered ball bearing is a rolling bearing.

[0034] As described above, the outer surface of the flywheel can, for example, be cylindrical on the outside or inside, i.e., in the form of a hollow cylinder. In some embodiments, however, the outer surface can preferably have other shapes. Preferably, the outer rim or the outside of the outer surface of the flywheel can have a triangular, quadrilateral, pentagonal, hexagonal, heptagonal, octagonal, or any other polygonal shape. Preferably, the polygonal shape is a regular polygon with 5 to 10 vertices, preferably with 6 to 8 vertices. In geometry, a regular polygon is a planar polygon that is both equilateral and equiangular. Therefore, in a regular polygon, all sides are of equal length and all interior angles are equal.The vertices of a regular polygon all lie on a common circle, with adjacent vertices appearing at the same central angle. Since the vertices of a regular polygon all lie on a common circle, all vertices, as preferred, are equidistant from the center of the flywheel. This means, as described above, that the distance of the outer boundary of the outer shell relative to the centered ball bearing and to the center of the flywheel is constant, depending on the shape of the outer shell.

[0035] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the outer shell or the flywheel is cylindrical or has the shape of a regular polygon.

[0036] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the outer shell or the flywheel body is cylindrical or has a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape and preferably has the form of a regular polygon with preferably 5 to 10 vertices, more preferably with 6 to 8 vertices.

[0037] The present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edges (R1) and (R2) relative to the freely rotatable flywheel (S) in order to rotate the freely rotatable flywheel. (S) to fix in its position,wherein the outer shell or the flying body is cylindrical or has a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape and preferably has the shape of a regular polygon with preferably 5 to 10 vertices, more preferably with 6 to 8 vertices.

[0038] The outer surface of the cylinder, as well as the outer surfaces of the regular polygon, are preferably printable with game pieces, images, motifs, and text. In other words, the outer surface of the cylindrical outer shell, as well as the outer surfaces of the outer shell in the form of a regular polygon, are preferably printable with game pieces, images, motifs, and text.In a preferred embodiment, the outer shell of the flywheel has a printable outer surface on its outer perimeter. In a further embodiment, the outer flywheel preferably has printable outer surfaces which are preferably at least partially covered by the two opposing disc-shaped end caps and which can be referred to as the lateral outer surfaces of the first and second sides of the outer shell of the flywheel. These lateral outer surfaces preferably refer to the lateral outer surfaces of the outer shell of the flywheel in the area between the outer diameter of the outer shell and the inner diameter of the outer shell, or the diameter of the first central recess. In a preferred embodiment, only the first lateral outer surface of the outer shell is printable.In a further preferred embodiment, only the second lateral outer surface of the outer shell is printable. In a particularly preferred embodiment, both the first and second lateral outer surfaces of the outer shell are printable. In a further particularly preferred embodiment, both lateral outer surfaces and the outer surface on the outer rim of the outer shell of the flywheel are printable with game pieces, images, motifs, and text. It is preferred that the outer shell of the flywheel has at least one printable outer surface. It is further preferred that the outer shell of the flywheel has one or more printable outer surfaces.In preferred embodiments, the outer shell of the rotatable flywheel is cylindrical, and the outer surface on the outer perimeter of the outer shell of the flywheel, i.e., the outer cylindrical surface or lateral surface, is flat and printable with game pieces, images, motifs, and text. The outer surface on the outer perimeter of the cylindrical outer shell of the flywheel is flat and printable, meaning that the outer cylindrical surface or lateral surface of a cylindrical outer shell is neither concave nor convex, and the outer radius or outer diameter of the cylindrical outer shell is constant across its width or height and its entire circumference. In other words, the outer shell of the rotatable flywheel has no dents or irregularities on the outer cylindrical surface or lateral surface.outer surface on the outer rim. In other words, the cylindrical outer shell of the freely rotatable flywheel in the form of a hollow cylinder particularly preferably has a constant wall thickness (W). It was surprisingly found that a cylindrical outer shell of a rotatable flywheel in the form of a hollow cylinder with a constant wall thickness (W) is particularly suitable and advantageous for providing a printable surface on the outer cylinder surface or rim. Surprisingly, it was found that the entire cylinder surface or rim over the entire circumference of the outer shell of the freely rotatable flywheel is printable only if the cylinder surface or rim is flat.

[0039] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension being suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension being suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the outer shell of the flywheel has one or more printable outer surfaces and is preferably flat, i.e., flat parallel to the axis of rotation and not convex or concave.

[0040] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the outer shell of the flywheel has one or more printable outer surfaces which are preferably flat, i.e., flat parallel to the axis of rotation and not convex or concave.

[0041] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the outer shell of the flywheel has one or more printable outer surfaces, wherein the freely rotatable flywheel (S) with the outer shell (M) is cylindrical and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable, wherein preferably the wall thickness (W) of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is constant.

[0042] "Printing," as used herein, encompasses any suitable process or method, preferably from the prior art, by which, for example, game pieces, images, motifs, and / or text can be represented on the surface of a material. "Printable," as used herein, means, among other things, that the material of a part of the rotatable game piece with a printable outer surface can be directly printed with, for example, game pieces, images, motifs, and / or text. A person skilled in the art may refer to a suitable method or process known from the prior art that can be used to print on a specific material. In some embodiments, for example, plastics or metals can be directly printed by screen printing, offset printing, or pad printing."Printable" as used herein also means that the material of a part of the rotatable game piece with a printable outer surface can be covered with, for example, game pieces, images, motifs, and text. In some embodiments, self-adhesive films printed with game pieces, images, motifs, and text can be used for printing on a printable outer surface. In some embodiments, it may be preferred if a plastic part with a printable outer surface has, for example, a painted outer surface. In some embodiments, for example, a printable magnetic film can also be used, which can adhere to a magnetic material with a magnetic outer surface.In some embodiments, it may be preferred if the material of the rotating game piece has a printable outer surface engraved with game pieces, images, motifs, and / or text. In these embodiments, the material, such as a metal or plastic, can be processed, for example, by means of laser engraving. The preceding methods and processes for printing on outer surfaces are merely examples, and the person skilled in the art may also refer to other suitable methods and processes from the prior art with which an outer surface can be printed with game pieces, motifs, images, and text.

[0043] To enable the printing of game pieces, motifs, images, and text on a surface, it is preferred that the surface to be printed be flat. In other words, it is preferred that the outer surfaces of the disc-shaped end caps are planar and flat, and that the outer surface on the outer edge of the outer shell or the disc-shaped end caps is flat. Therefore, it is particularly preferred if the freely rotatable flywheel (S) with the outer shell (M) is cylindrical and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable. It is therefore preferred that the wall thickness (W) of a cylindrical outer shell (M) of a freely rotatable flywheel (S) is constant, especially if the cylindrical outer shell (M) of a freely rotatable flywheel is in the form of a hollow cylinder.

[0044] As described above, the outer shell can preferably have various external or internal shapes. This means that not only can the outer rim or the outside of the outer shell of the flywheel be cylindrical or triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or any other preferably regular polygonal shape, but the inside of the outer shell can also be cylindrical or triangular, square, pentagonal, hexagonal, or any other preferably regular polygonal shape. Preferably, the inner surface of the outer shell is cylindrical, meaning that the first central recess is circular, so that a cylindrical, centered ball bearing can preferably be enclosed within it.

[0045] The outer shell of the flywheel according to the invention can be made of various materials, such as different plastics, glass, wood, or metals, for example, aluminum. Preferably, the outer shell of the flywheel is made of polypropylene (PP), and more preferably of polyvinyl chloride (PVC), and particularly preferably of polyoxymethylene (POM). Any other suitable material that is appropriate for the construction of the flywheel or the rotatable game element according to the invention can be used by a person skilled in the art. Further non-exhaustive examples of suitable materials are metals such as cast iron, steel, stainless steel, aluminum alloys, copper alloys, magnesium alloys, titanium alloys, and zinc alloys; ceramics, such as glass, for example.Borosilicate glass, glass ceramics, quartz glass, soda-lime glass, or technical ceramics such as silicon, silicon carbide, silicon nitride, tungsten carbide, composite materials such as aluminum-silicon carbide, carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP), natural materials such as wood or bamboo, polymers or plastics such as elastomers e.g. natural rubber, thermoplastics such as acrylonitrile butadiene styrene copolymer (ABS), cellulose acetate (CA), ionomers, polyamides such as nylon, polycarbonates (PC), polyetheretherketone (PEEK), polyethylene (PE), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyoxymethylene (POM), polypropylene (PP), polystyrene (PS), polyurethane thermoplastics, polyvinyl chloride (PVC), Teflon (PTFE), thermosets such as epoxy resins, phenolic resins and polyesters.In some embodiments, the outer shell of the flywheel can preferably consist of a combination of different parts, which may also be made of different materials. For example, the outer shell can have a cylindrical outer ring made of plastic and a cylindrical inner ring made of metal. Another example is an outer shell consisting of a cylindrical outer ring made of plastic, a cylindrical middle ring made of metal, and a cylindrical inner ring made of plastic. Furthermore, for example, the outer shell can consist of an outer ring that has the shape of a regular hexagon on the outside and is cylindrical on the inside, and an inner ring, wherein the outer surface of the inner ring is cylindrical so that the outer ring and the inner ring can be positively engaged with each other.Another example is an outer shell consisting of an outer ring having the shape of a regular hexagon on both its outer and inner surfaces, and an inner ring whose outer surface has the shape of a regular hexagon, but whose inner surface is cylindrical. The foregoing examples represent only exemplary embodiments of the outer shell of the flywheel according to the invention and are not limited to these examples. However, it is particularly preferred that the various parts of the different embodiments of the outer shell of the flywheel can be positively engaged with one another.This means that if, for example, the outer shell preferably consists of an outer ring in a further embodiment, which has the shape of a regular hexagon on the outside and on the inside, that the inner ring, which consequently also has the shape of a regular hexagon on the outside of the inner ring, that the size and shape of the regular hexagon on the inside of the outer ring and the size and shape of the regular hexagon on the outside of the inner ring correspond so closely that the outer ring and the inner ring can be positively locked into each other.

[0046] According to the invention, the centered ball bearing, and thus the flywheel, has a second central recess. Preferably, the second central recess is located centered within the centered ball bearing. The second central recess can be cylindrical, but can also have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape, and preferably the shape of a regular polygon with preferably 5 to 10 sides, more preferably with 6 to 8 sides. Preferably, the second central recess corresponds to the outer shape of at least one centered extension of one of the disc-shaped end caps. Preferably, at least one of the centered extensions of the disc-shaped end caps can be positively engaged in the second central recess. For example, the second central recess, which forms the inner surface of the centered ball bearing, can be cylindrical.In some embodiments, it is preferred that the outer rim or outside of the first centered extension is also cylindrical, for example. To enable the first centered extension of the first disc-shaped side cap to engage positively in the second central recess, it is particularly preferred that the diameter of the cylindrical second central recess of the centered ball bearing corresponds to the outer diameter of the first centered extension to such an extent that positive engagement is possible. Another example of a preferred embodiment is a second central recess having the shape of a regular quadrilateral, and in this case, it is preferred that the outer shape of the first centered extension of the first disc-shaped side cap is also a regular quadrilateral.It is particularly preferred that, for example, after the first centered extension of the first disc-shaped side cap engages in the second central recess of the flywheel body or the centered ball bearing, the flywheel body and the first disc-shaped side cap with the first centered extension do not separate from each other without force or solely by gravity.

[0047] According to the invention, the flywheel "freely rotatable",and can be mechanically set into rotation, wherein the flywheel preferably rotates freely at a high speed for at least 5-10 seconds and particularly preferably for at least 30 seconds. The rotatable game body according to the invention is preferably held by a user with one hand by the non-rotating, opposing disc-shaped end caps, while the flywheel is mechanically set into rotation with the other hand, e.g., by nudging it with a finger of the other hand. "Freely rotatable" as used herein means that the flywheel continues to rotate after it has been set in motion. That is to say, the rotation of the flywheel does not end at the point in time when the force exerted on the flywheel to set it in rotation no longer acts on the flywheel.The term "freely rotatable" therefore refers, with sufficiently large force transmission, to a rotation of the flywheel at a speed of at least one revolution per second for a period of at least 5 seconds after the end of the force application, preferably at least one revolution per second for a period of at least 10 seconds after the end of the force application, and particularly preferably at least one revolution per second for a period of at least 30 seconds after the end of the force application.

[0048] In some embodiments, the flywheel may preferably have different overall diameters. The overall diameter here represents the outer diameter. diameterof the outer surface of the rotating body, and thus the outer diameter of the rotating body. For example, if the outer surface of the rotating body is cylindrical, the distance from the outside of the outer surface to the center of the rotating body is constant. This distance is the outer radius of the cylindrical outer surface. In other words, the outer radius of a cylindrical outer surface of a rotatable rotating body is preferably constant. That is, the cylindrical outer surface of the rotatable rotating body preferably has a constant outer radius. In other words, the cylindrical outer surface of the rotatable rotating body preferably has a constant outer radius across the entire width or height of the cylindrical outer surface and is therefore flat on the outer surface of the cylinder.In other words, the outer radius of a cylindrical outer shell of a freely rotatable flywheel in the form of a hollow cylinder is constant, and thus the wall thickness of the cylindrical outer shell of the freely rotatable flywheel is also constant. It is understood that the overall diameter of the flywheel according to the invention is therefore twice the outer radius of the cylindrical outer shell. If the outer shell has the shape of a regular polygon, then the outer radius is the distance from one of the vertices of the regular polygon to the center of the flywheel, since, as described above, all vertices of a regular polygon lie on a circle. In a preferred embodiment, the flywheel has an outer diameter of 2.0 cm to 10.0 cm. A preferred outer diameter is 2.5 cm to 8.0 cm, and a more preferred diameter is 3.0 cm to 6.0 cm.The flywheel preferably has an outer diameter of 3.5 to 4.0 cm. The flywheel preferably has an outer diameter of at least 3.0 cm. The flywheel preferably has an outer diameter of 3.5 cm.

[0049] In some embodiments, the flywheel can preferably have a different width. The width of the flywheel corresponds to the width of its outer shell. The width of the outer shell can also be referred to as the height or thickness of the outer shell. The width of the centered ball bearing can differ from the width of the outer shell. The width of the centered ball bearing is preferably less than or equal to the width of the flywheel's outer shell. More preferably, the width of the centered ball bearing is at most equal to the width of the flywheel's outer shell. However, in some embodiments, it may also be preferred if the width of the centered ball bearing is greater than the width of the flywheel's outer shell.As described above, the centered ball bearing preferably consists of an inner ring and an outer ring with intervening rolling elements that reduce frictional resistance. Regarding the width of the centered ball bearing, in some embodiments it may be preferred if the inner ring and the outer ring of the centered ball bearing have different widths. For example, in a preferred embodiment, the outer ring of the centered ball bearing and the rolling elements between the outer and inner rings of the centered ball bearing may have a narrower width than the outer surface of the flywheel, and the inner ring of the centered ball bearing may, for example, have a wider width than the outer surface of the flywheel.In a further preferred embodiment, the inner ring of the centered ball bearing can also have a width corresponding to the width of the outer shell of the flywheel. The width of the centered ball bearing can also be referred to as the height of the centered ball bearing or the thickness of the centered ball bearing. If, for example, the outer shell of the flywheel is cylindrical in a preferred embodiment, the width of the outer shell of the flywheel thus corresponds to the height of the cylinder. In preferred embodiments of the flywheel according to the invention, the outer shell preferably has a width of 0.4 cm to 5.0 cm, more preferably a width of 0.5 cm to 3.0 cm, more preferably a width of 0.7 cm to 3.0 cm, and even more preferably a width of 0.8 cm to 2.0 cm. A width of 1.0 cm to 1.2 cm is particularly preferred.In a preferred embodiment, the centered ball bearing has, for example, a maximum width equal to the outer surface of the flywheel. It is particularly preferred that the width of the centered ball bearing corresponds to 0.50 to 0.95 times the width of the flywheel. It is especially preferred that at least the width of the outer ring of the centered ball bearing and the width of the rolling elements between the outer and inner rings of the centered ball bearing correspond to 0.50 to 0.95 times the width of the flywheel.

[0050] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the width of the centered ball bearing corresponds to 0.50 to 0.95 times the width of the flywheel.

[0051] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer rim (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (11), the opposing second disc-shaped end cap (K2) has an outer rim (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer rim (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the width of the centered ball bearing corresponds to 0.50 to 0.95 times the width of the flywheel. In a preferred embodiment of the game piece according to the invention, the outer shell of the flywheel or the flywheel itself can have a chamfer of various sizes and shapes at its edge, particularly preferably a chamfer of various sizes and shapes at both edges.

[0052] As mentioned above, in preferred embodiments the outer shell of the flywheel is cylindrical, such that the distance from the outer surface of the outer shell to the center of the flywheel is constant. In these embodiments, it is preferred that the outer radius of the cylindrical outer shell is constant. In other words, the outer radius of a cylindrical outer shell of a rotatable flywheel is preferably constant. Specifically, it is preferred that the cylindrical outer shell of the rotatable flywheel has a constant outer radius across its entire width or height, and is therefore flat on the outer surface of the cylinder.In other words, the outer radius of a cylindrical outer shell of a freely rotating flywheel in the form of a hollow cylinder is constant, and thus the wall thickness of the cylindrical outer shell of the freely rotating flywheel is also constant.

[0053] In embodiments of the game body according to the invention in which the outer shell of the freely rotatable flywheel is cylindrical and preferably has the form of a hollow cylinder, wherein the outer shell of the flywheel orThe flywheel has a chamfer of various sizes and shapes at its edge, and particularly preferably has a chamfer of various sizes and shapes at both edges. It is especially preferred that the wall thickness (W) of the cylindrical outer shell of the flywheel, in the form of a hollow cylinder, as well as the outer radius of the outer shell of the flywheel, is constant over at least 90% of the width (B3) of the outer shell, more preferably at least 92% of the width (B3) of the outer shell, more preferably at least 94% of the width (B3) of the outer shell, more preferably at least 96% of the width (B3) of the outer shell, at least 98% of the width (B3) of the outer shell, and most preferably at least 99% of the width (B3) of the outer shell of the flywheel. In other words, in these embodiments, it is preferred that the size of the chamfer at the edge of the outer shell is constant.Preferably, the total size of the chamfers on both edges of the outer shell preferably comprises a total of 1 to 10% of the width of a cylindrical outer shell of the flywheel body, so that at least 90% to 99% of the cylinder surface or shell surface of the cylindrical outer shell is flat and printable.

[0054] In a further preferred embodiment of the game piece according to the invention, the outer shell of the flying body can also have one or more recesses in the shape of a circle or in the shape of a triangle, square, pentagon, hexagon, or any other polygon. Preferably, the shape of the polygon is a regular polygon. In a further preferred embodiment, the outer shell of the flying body can also have one or more recesses in any desired shape. In a preferred embodiment, for example, the outer shell of the flying body can have a wedge-shaped recess directed towards the center of the flying body, wherein this wedge-shaped recess has the greatest distance on the outer edge of the outer shell and wherein the distance decreases continuously towards the center of the outer shell.In a further embodiment, the outer shell of the flywheel can also have a recess in the form of a groove. The groove can, for example, extend along the entire circumference of the outer shell on its outer edge, or it can extend into the interior of the outer shell along its width, so that the outer shell of the flywheel has a gap of constant width at a defined position. It is particularly preferred that the one or more recesses on the outer shell of the flywheel do not create any imbalance during rotation and do not restrict the free rotation of the flywheel.

[0055] In preferred embodiments in which the outer shell of the freely rotatable flywheel is cylindrical and preferably has the form of a hollow cylinder with a constant wall thickness (W), it is particularly preferred if the outer shell of the freely rotatable flywheel does not have a recess on the cylinder surface or shell surface, so that the cylinder surface or shell surface is flat and thus particularly advantageously printable.

[0056] The swinging body preferably makes up at least 80% of the mass of the playing body, preferably at least 85%, more preferably at least 90% and most preferably at least 95% of the mass of the playing body.

[0057] Alternatively, the mass of the flywheel (S) is at least 4 times the mass of the two disc-shaped side caps (K1 and K2), preferably at least 9 times, more preferably at least 15 times, and even more preferably at least 19 times the mass of the two disc-shaped side caps (K1 and K2).

[0058] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the mass of the flywheel is at least 15 times the mass of the two disc-shaped side caps.

[0059] According to the invention, the rotatable game body comprises two opposing disc-shaped side capsA freely rotatable flywheel is arranged between the two disc-shaped end caps. The first disc-shaped end cap has an outer rim, an outer surface, and a first centered extension on its inner surface. The second disc-shaped end cap has an outer rim, an outer surface, and a second centered extension on its inner surface. The extensions are suitable for engaging with the flywheel, preferably in a form-fitting manner. The disc-shaped end caps are preferably movable at their outer rims against the freely rotatable flywheel to fix the flywheel in its position. A freely rotatable flywheel is arranged between the opposing disc-shaped end caps. Therefore, the opposing disc-shaped end caps are arranged at a distance B₀ from each other, between which a freely rotatable flywheel with a width B₃ is arranged.The first disc-shaped side cap preferably has a distance B 4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1), and the second disc-shaped side cap preferably has a distance B 5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2). The rotatable play element of the present invention thus preferably comprises a flywheel with a width B 3 and two opposing disc-shaped side caps arranged at a distance B 0 from each other. To ensure that the flywheel arranged between the two opposing disc-shaped side caps is freely rotatable, it is preferred that the distance B 0 between the opposing side caps is greater than the width B 3 of the flywheel.It is therefore particularly preferred if the distance B 0 between the inner surfaces of the opposing disc-shaped side caps (K1) and (K2) is greater than the width B 3 of the flywheel (S). In other words, it is particularly preferred if the distance (B 0) between the inner surfaces of the opposing disc-shaped side caps (K1) and (K2) is the sum of the width (B 3) of the flywheel (S), the distance (B 4) of the flywheel to the inner surface of the first disc-shaped side cap (K1), and the distance (B 5) of the flywheel to the inner surface of the second disc-shaped side cap (K2). According to the invention, the first disc-shaped side cap has an outer surface and a first centered extension on its inner surface, and the opposing second disc-shaped side cap has an outer surface and a second centered extension on its inner surface.Preferably, the first centered extension is suitable for engaging in the second centered recess of the centered ball bearing, and the second centered extension is suitable for engaging in the second centered recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap.

[0060] Preferably, the opposing disc-shaped end caps are arranged parallel to each other. The disc-shaped end caps preferably have different outer shapes. Preferably, the disc-shaped end caps can have an outer shape that is cylindrical or that is triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or any other polygonal shape. Preferably, the polygonal shape is a regular polygon with 3 to 10, preferably 6 to 8, sides. The first disc-shaped end cap preferably has the same shape as the second disc-shaped end cap. However, the end caps can also have different shapes. For example, the first end cap can be cylindrical and the second end cap in the form of a regular hexagon.Any conceivable combination of the different outer shapes for the first and the second disc-shaped side cap can be considered according to the invention. It is particularly preferred if the first disc-shaped side cap and the second disc-shaped side cap are cylindrical.

[0061] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first disc-shaped side cap is cylindrical or has a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape, and wherein the triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape is preferably a regular polygon.

[0062] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the second disc-shaped side cap is cylindrical or has a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape, and wherein the triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape is preferably a regular polygon.

[0063] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first disc-shaped side cap and / or the second disc-shaped side cap is / are cylindrical or has / have the shape of a regular polygon.

[0064] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first disc-shaped side cap and / or the second disc-shaped side cap is / are cylindrical or has / have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or regular polygonal shape and preferably has the shape of a regular polygon with 5 to 10 vertices, more preferably with 6 to 8 vertices.

[0065] The present invention therefore preferably relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S) in order to rotate the freely rotatable flywheel. (S) in his position toThe first disc-shaped side cap and / or the second disc-shaped side cap are cylindrical or have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or regular polygonal shape, preferably a regular polygon with 5 to 10 sides, and more preferably with 6 to 8 sides. The outer surface (F1) of the first disc-shaped side cap (K1) and the outer surface (F2) of the second disc-shaped side cap (K2) are preferably printable with game pieces, images, motifs, and text. In a preferred embodiment, the first and / or the second disc-shaped side cap has a printable outer surface on the outer edge of the respective disc-shaped side cap. In a further embodiment, the first and / or the second disc-shaped side cap preferably has a printable outer surface on the respective outer surface of the correspondingdisc-shaped side caps. In a preferred embodiment, only the outer surface of the first disc-shaped side cap is printable. In another embodiment, only the outer surface of the second disc-shaped side cap is printable. In a particularly preferred embodiment, both outer surfaces of the first and second disc-shaped side caps are printable. In a further particularly preferred embodiment, both outer surfaces of the two disc-shaped side caps and the outer rim of the disc-shaped side caps are printable with game pieces, images, motifs, and text. It is preferred that the first and / or the second disc-shaped side cap has / have at least one printable surface. It is further preferred that the first and / or the second disc-shaped side cap has / have one or more printable outer surfaces.

[0066] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the opposing disc-shaped side caps have one or more printable outer surfaces.

[0067] The present invention therefore preferably relates to a rotatable game body suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position, wherein the opposing disc-shaped end caps have one or more printable outer surfaces.

[0068] As described above, not only can the disc-shaped side caps have one or more printable surfaces, but the outer shell of the flywheel can also have one or more printable outer surfaces.

[0069] In a particularly preferred embodiment of the rotatable game body, one or more outer surfaces of the outer shell of the flywheel body and the opposing disc-shaped side caps can be printed on.

[0070] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the outer shell of the flywheel, as well as the opposing disc-shaped side caps, have one or more printable outer surfaces.

[0071] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the outer shell of the flywheel, as well as the opposing disc-shaped side caps, have one or more printable outer surfaces.

[0072] Preferably, the present invention also relates to a rotatable game body suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the outer shell of the flywheel, as well as the opposing disc-shaped end caps, have one or more printable outer surfaces, wherein the freely rotatable flywheel (S) with the outer shell (M) is cylindrical and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable, wherein preferably the wall thickness (W) of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is constant.

[0073] In some embodiments, the disc-shaped end caps may preferably have different diameters. It is preferred that the first disc-shaped end cap has the same diameter as the second disc-shaped end cap. It is particularly preferred that the first and second disc-shaped end caps each have a diameter that is at least equal to the outer diameter of the centered ball bearing or the diameter of the first central recess. However, the disc-shaped end caps may also each have different diameters. For example, the first disc-shaped end cap may have a diameter that corresponds to the outer diameter of the centered ball bearing of the flywheel, while the second end cap may have a diameter that corresponds to the outer diameter of the outer shell of the flywheel.Any conceivable combination of different diameters for the first and the second disc-shaped side cap can be considered according to the invention.

[0074] In a preferred embodiment, the disc-shaped end caps have a smaller or larger diameter than the outer diameter of the flywheel. In another preferred embodiment, the disc-shaped end caps have a smaller diameter than the outer diameter of the flywheel. In yet another preferred embodiment, the disc-shaped end caps have a larger diameter than the outer diameter of the flywheel. In a particularly preferred embodiment, both disc-shaped end caps have the same diameter, which also corresponds to the outer diameter of the flywheel.

[0075] The opposing disc-shaped side caps (K1) and (K2) can have a diameter in the range of 0.3 to 1.5 times the outer diameter of the flywheel body (S). Preferably, the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel body (S).

[0076] Should one or both disc-shaped side caps (K1) and (K2) and / or flywheels (S) not be cylindrical and thus not have a defined diameter, then the diameter, e.g., in the case of a polygonal shape of a regular polygon, is considered to be the smallest distance from the center to the outer edge.

[0077] It is particularly preferred if the first and second disc-shaped end caps each have a diameter that is at least equal to the outer diameter of the centered ball bearing or the diameter of the first central recess. Preferably, the first and second disc-shaped end caps each have a diameter that is at least equal to the outer diameter of the first central recess. In other words, it is preferred if the diameter of the opposing end caps is larger than the outer diameter of the first central recess of the outer shell of the flywheel or larger than the outer diameter of the centered ball bearing.It is therefore particularly preferred if the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the freely rotatable flywheel (S), wherein the diameter of the disc-shaped side caps corresponds at least to the outer diameter of the first central recess of the outer shell of the flywheel.It is therefore particularly preferred if the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel (S), wherein the diameter of the disc-shaped side caps (K1) and (K2) corresponds at least to the outer diameter of the centered ball bearing.It is therefore particularly preferred if the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel body (S), wherein the diameter of the disc-shaped side caps (K1) and (K2) is larger than the outer diameter of the first central recess of the outer shell of the flywheel body.It is therefore particularly preferred if the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel (S), wherein the diameter of the disc-shaped side caps (K1) and (K2) is larger than the outer diameter of the centered ball bearing.

[0078] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, the disc-shaped side caps having a diameter in the range of 0.5 to 1.2 times the outer diameter of the flywheel.

[0079] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably exhibiting a diameter 0.95 to 1.1 times, more preferably 0.95 to 1.05 times, of the outer diameter of the flywheel.

[0080] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the diameter of the first and the second disc-shaped side cap is in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the outer shell of the flywheel body, and the first and / or the second disc-shaped side cap is cylindrical and / or has the shape of a regular polygon.

[0081] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1,The present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped side caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped side cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped side cap has an outer surface and a second centered extension on the inner surface, and the first centered extension is suitable forthe second central recess of the centered ball bearing and the second centered extension is suitable for engaging in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the diameter of the first and the second disc-shaped side cap is in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 times to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the outer shell of the flywheel body, and the first and second disc-shaped side caps are cylindrical or have the shape of a regular polygon, and the outer shell of the flywheel body is cylindrical or has the shape of a regular polygon.

[0082] The present invention also relates to a rotatable game piece suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension being suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension being suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the diameter of the first and the second disc-shaped side cap is in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the outer shell of the flywheel body, and the first and second disc-shaped side caps are cylindrical or have the shape of a regular polygon, and the outer shell of the flywheel body is cylindrical or has the shape of a regular polygon, and the flywheel body has an outer diameter of 3.0 cm to 6.0 cm and a width of 0.8 cm to 2.0 cm.

[0083] The two opposing side caps are preferably opposing disc-shaped side caps. "Disc-shaped" as used herein refers to a body that has the shape of a disk or a body with a flat surface. A disk is a geometric body, preferably in the form of a cylinder, whose radius is many times greater than its thickness. However, a disc-shaped side cap as used herein does not exclusively refer to a disc-shaped side cap that has the shape of a cylinder. The term "disc-shaped" as used herein also refers to disc-shaped side caps that have other external shapes, such as the shape of a regular polygon.

[0084] The first and second disc-shaped end caps of the game element according to the invention may preferably have different widths. The width of the disc-shaped end caps can also be referred to as the height or thickness of the disc-shaped end caps. If the disc-shaped end caps are cylindrical, for example, the width of the disc-shaped end caps thus represents the height of the cylinder. In preferred embodiments of the rotatable game element according to the invention, the disc-shaped end caps preferably have a width of 0.2 mm to 5.0 mm, more preferably 0.3 mm to 3.0 mm. A width of 1 mm is particularly preferred. In a preferred embodiment, the end caps have a width in the range of 0.05 to 0.5 times, more preferably 0.07 to 0.3 times, and more preferably 0.1 to 0.2 times the width of the flywheel or the outer shell.

[0085] In some preferred embodiments, the disc-shaped side caps can also have a greater width than previously described. For example, the disc-shaped side caps can also have a width corresponding to the width of the flywheel or the outer shell of the flywheel. In some preferred embodiments, the disc-shaped side caps have a width in the range of 0.05 to 1.0 times the width of the flywheel. In a particularly preferred embodiment, the disc-shaped side caps each have a width corresponding to the width of the flywheel.

[0086] In another preferred embodiment, the width of the first disc-shaped side cap can correspond to the width of the second disc-shaped side cap. It is particularly preferred if the first and second disc-shaped side caps have the same width. In further preferred embodiments, the first disc-shaped side cap can have a different width than the second disc-shaped side cap.

[0087] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, the disc-shaped side caps having a width in the range of 0.05 to 0.5 times the width of the flywheel.

[0088] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position, wherein the disc-shaped side caps have a width in the range of 0.05 times to 0.5 times the width of the flywheel.

[0089] The present invention also relates to a rotatable game piece suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension being suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension being suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the diameter of the first and second disc-shaped side caps is in the range of 0.5 to 1.2 times the outer diameter of the outer shell of the flywheel body, and the first and second disc-shaped side caps are cylindrical or have the shape of a regular polygon, and the outer shell of the flywheel body is cylindrical or has the shape of a regular polygon, and the flywheel body has an outer diameter of 3.0 cm to 6.0 cm and a width of 0.8 cm to 2.0 cm, and the disc-shaped side caps have a width in the range of 0.05 to 0.5 times the width of the flywheel body.

[0090] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps have a width in the range of 0.05 to 0.5 times the width of the flywheel, wherein the disc-shaped side caps have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.1 times,have 0.5 times the outer diameter of the flywheel body and the first and / or the second disc-shaped side cap is cylindrical and / or has the shape of a regular polygon.

[0091] In a preferred embodiment of the game piece according to the invention, the disc-shaped side caps can each have a chamfer of various sizes and shapes on the edge, particularly preferably on both edges, i.e. on the inside at the edge of the inner surfaces and on the outside at the edge of the outer surfaces.

[0092] In a further preferred embodiment of the game piece according to the invention, the disc-shaped side caps can also have recesses in the shape of a circle or in the shape of a triangle, square, pentagon, hexagon, heptagon, octagon, or any other polygon. Preferably, the shape of the polygon is a regular polygon with preferably 3 to 10 vertices. In a preferred embodiment, the first disc-shaped side cap and / or the second disc-shaped side cap has one or more recesses at the edge of the side cap. That is, the recess at the edge of the respective disc-shaped side cap is not completely enclosed by the material of the side cap. In other words, the recess at the edge of a disc-shaped side cap can also be referred to as an outer recess, an open recess, or a recess open to the outside.In a further preferred embodiment, the first and / or the second disc-shaped side cap has one or more recesses that are completely enclosed by the material of the respective side cap. This recess of the first and / or second disc-shaped side cap can be referred to as an inner recess. Preferably, the first and / or the second disc-shaped side cap has one or more outer and / or inner recesses with a radius that lies within the range of the outer diameter of the outer shell of the flywheel and the inner diameter of the outer shell of the flywheel, or the diameter of the first central recess. Preferably, one or more inner recesses of the first disc-shaped side cap and / or the second disc-shaped side cap do not lie within the range of the outer diameter of the centered ball bearing, or the diameter of the first central recess.the inner diameter of the outer shell or the diameter of the first central recess and the inner diameter of the centered ball bearing or the diameter of the second central recess of the flywheel. In an exemplary embodiment, the outer shell of the flywheel can, for example, be printed with numbers or figures of a defined size on the surface covered by, for example, the first disc-shaped side cap (i.e., the first lateral outer surface) at a defined radius between the outer diameter of the outer shell of the flywheel and the inner diameter of the outer shell of the flywheel. Simultaneously, the first disc-shaped side cap can be, for example,The recess also has a defined radius between the outer diameter of the outer surface of the flywheel and the inner diameter of the outer surface of the flywheel, and has a diameter or shape corresponding to the defined size of a number or figure. In simpler terms, the exemplary recess in this exemplary embodiment on the first disc-shaped side cap represents a "window" through which the numbers or figures depicted on the outer surface of the flywheel are visible; preferably, this recess, i.e., the "window," is large enough that only one of the numbers or figures is visible at any given time.In a further embodiment, the second disc-shaped side cap can also have a recess, as previously described for the first disc-shaped side cap, wherein the flywheel can be printed with numbers or figures on the surface covered by the second disc-shaped side cap, i.e., the second lateral outer surface, as described above. In a preferred embodiment, a rotatable game piece is provided which, for example, has a recess on the first and / or second disc-shaped side cap as described above, which acts as a "window" and simultaneously has numbers or figures printed on the lateral outer surfaces of the flywheel.The outer surface of the flywheel, which is covered by the first and / or second disc-shaped side cap, is printed with numbers or figures, so that after the flywheel is initiated to rotate and then decelerate, a specific number or figure is visible through the "window" or recess on the first and / or second disc-shaped side cap. In a preferred embodiment, the disc-shaped side caps can also have a central recess into which a further additional part can be integrated. This additional part can, for example, be a finger grip. In a preferred embodiment, this additional part can be in the form of a finger ring into which a user's finger can be inserted, so that the rotating game piece can be worn on the user's hand like a finger ring.In another preferred embodiment, this additional part can have the form of a ring or eyelet, so that, for example, a cord can be threaded into this ring, allowing the game piece to be worn around a user's neck like a necklace or attached to a keyring. In a further embodiment, the additional part can be a clip-on figure.

[0093] In a preferred embodiment of the rotatable game body according to the invention, the distance between the flywheel and the opposing disc-shaped side caps is in the range of 0.1 mm to 3.0 mm. In a particularly preferred embodiment, the distance between the flywheel and the opposing disc-shaped side caps is between 0.1 mm and 0.3 mm. In further preferred embodiments, the distance between the flywheel and the opposing disc-shaped side caps is preferably 0.1–3.0 mm, 0.3 mm–2.0 mm, more preferably 0.5 mm–1.5 mm, and most preferably 0.8 mm–1.2 mm. In a preferred embodiment, the distance between the flywheel and the first disc-shaped side cap and between the flywheel and the second disc-shaped side cap is the same.In other words, the first disc-shaped side cap preferably has the same distance to the flywheel as the second disc-shaped side cap has to the flywheel. In a preferred embodiment, the distance between the flywheel and the disc-shaped side caps is at least large enough to allow the flywheel to rotate freely without hindrance. In a preferred embodiment, the distance between the flywheel and the disc-shaped side caps is at least large enough to prevent the flywheel from being slowed down by the disc-shaped side caps during free rotation.The distance between the flywheel and the first disc-shaped side cap is preferably the distance between the flywheel and the inner surface of the first disc-shaped side cap, and the distance between the flywheel and the second disc-shaped side cap is preferably the distance between the flywheel and the inner surface of the second disc-shaped side cap. The distance (B0) between the two opposing disc-shaped side caps is therefore preferably the sum of the distance B4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1) plus the distance B5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2) plus the width (B3) of the flywheel (S). Thus, the distance B0 between the two opposing disc-shaped side caps is preferably the sum of B4 + B5 + B3.It is preferred if the distance B4 and the distance B5 are between 0.1 mm and 3.0 mm, and particularly preferably between 0.1 mm and 0.3 mm. Therefore, it is preferred if the distance B4 and the distance B5 between the flywheel and the opposing disc-shaped end caps is preferably 0.1–3.0 mm, 0.3–2.0 mm, more preferably 0.5–1.5 mm, and most preferably 0.8–1.2 mm.

[0094] The present invention therefore also relates to a rotatable game body suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps have a width in the range of 0.05 to 0.5 times the width of the flywheel, wherein the disc-shaped side caps have a diameter in the range of 0.5 to 1.2 times the outer diameter of the flywheel, and the first and / or the second disc-shaped side cap is cylindrical and / or has the shape of a regular polygon, wherein the distance B4 and distance B5, respectively, between the flywheel and the opposing disc-shaped side caps is preferably 0.1–3.0 mm, 0.3–2.0 mm, more preferably 0.5–1.5 mm, and most preferably 0.8–1.2 mm.

[0095] The present invention therefore preferably relates to a rotatable game body suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps have a width in the range of 0.05 to 0.5 times the width of the flywheel, wherein the disc-shaped side caps have a diameter in the range of 0.5 to 1.2 times the outer diameter of the flywheel, and the first and / or the second disc-shaped side cap is cylindrical and / or has the shape of a regular polygon, wherein the outer shell (M) is cylindrical or has the shape of a regular polygon, wherein the outer shell (M) of the freely rotatable flywheel is preferably cylindrical, and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable, wherein the wall thickness (W) of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is preferably constant, wherein preferably,the outer radius of the cylindrical outer shell (M) of the freely rotating flywheel (S) is constant.

[0096] In some embodiments of the game element according to the present invention, it may be preferred if the disc-shaped side caps also have one or more extensions on the inner surfaces of the disc-shaped side caps at their outer edge, or even a extension extending over the entire outer circumference at the outer edge on the inner surface of the disc-shaped side caps, so that the disc-shaped side caps have a smaller distance at their outer edge to the freely rotatable flywheel than the distance B4 or B5 between the inner surfaces of the disc-shaped side caps and the freely rotatable flywheel. It is particularly preferred if the distance to the freely rotatable flywheel is at least large enough to allow the freely rotatable flywheel to be set into rotation and to rotate freely.

[0097] According to the invention, the rotatable game body of the present invention is preferably held by a user with one hand by the non-rotating, opposing disc-shaped side caps, while the other hand mechanically sets the spinning body into rotation, e.g., by pushing it with a finger of the other hand. In the case of prior art finger spinners, such as those described in DE 20 2017 103 662 U1, CN 107 754 323 A, CN 107 395 815 A, or US 9,914,063 B1, which have side cover caps with a diameter corresponding to or slightly larger than the diameter of the first central recess of the ball bearing used, the finger spinner must be held by these side cover caps so that the rotating body can rotate freely.Prior art finger spinners often have two or three "gyroscope arms," ​​with the diameter of the rotating body, including the gyroscope arms, being more than twice the diameter of the ball bearing used in the respective finger spinner—that is, more than twice the diameter of the side end caps. When holding such a finger spinner, it is essential that the rotating body is not touched by the hand so that it can be set in motion and spin freely. The overall diameter of prior art finger spinners is therefore limited to a maximum diameter that depends on the size of the user's hand.Children have smaller hands than adults, meaning they cannot use every type of finger spinner. Their hands and fingers may be too small to hold such a spinner by the side caps without touching the rotating body. Even if the overall diameter of the spinner is small enough, it is still necessary to hold it only in the center, by the side caps of the ball bearing, to ensure the free rotation of the spinning body. This requirement can be a disadvantage and an obstacle for users with motor skill difficulties or clumsiness.The rotatable playing element of the present invention preferably has two disc-shaped end caps, which have a diameter that is preferably larger than the diameter of the centered ball bearing and more preferably a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel.It is therefore preferred that the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel body (S).The rotatable game body of the present invention therefore offers the considerable advantage that it does not have to be held at such a limited predetermined point as is the case with finger spinners from the prior art, so that the spinning body can rotate freely when the finger spinner is held.It is particularly advantageous if the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel body (S), as this offers the advantage that the rotatable playing element can be conveniently and easily held at any point of the disc-shaped side caps, while the rotatable flywheel body can rotate freely without hindrance.Thus, the rotating toy of the present invention offers decisive advantages over the finger spinners of the prior art, as it is easier to handle, can be used regardless of the size of a user's hands, and is also easy to operate for users with motor impairments or clumsiness, and especially for children of all ages. Due to these advantageous properties, the rotating toy of the present invention is particularly suitable for children of kindergarten or primary school age.

[0098] As mentioned above, the opposing disc-shaped side caps preferably have a distance (B0) between them that is composed of the distance B4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1) plus the distance B5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2) plus the width (B3) of the flywheel (S). In other words, the opposing side caps preferably have a distance (B0) between them that is greater than the width (B3) of the flywheel (S). This is particularly advantageous if the opposing disc-shaped side caps have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 times to 1.4 times, more preferably 0.8 times to 1.3 times, more preferably 0.7 times to 1.2 times, more preferably 0.8 times to 1.2 times, more preferably 0.7 times to 1.1 times, more preferably 0.8 times to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel body (S). The rotatable game body of the present invention has the advantageous feature compared to the finger spinners of the prior art that it has opposing disc-shaped side caps, preferably with a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 times to 1.3 times, more preferably 0.7 times to 1.2 times, more preferably 0.8 times to 1.2 times, more preferably 0.7 times to 1.1 times, more preferably 0.8 times to 1.1 times, more preferably 0.9 times to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel (S) results in easier handling, since it is not necessary to hold the rotatable playing element, as with the finger circles of the prior art, only in a small area in the middle of the finger circle, usually the cover caps, in relation to the overall diameter of the finger circle. Furthermore, it is advantageous if the opposing disc-shaped side caps have a distance B 4 or B 5 to the flywheel body, so that it is ensured that the disc-shaped side caps also at the outermost edge,The outer edge (R1) of the first disc-shaped side cap, as well as the outer edge (R2) of the second disc-shaped side cap, can be held in place without unintentionally touching the flywheel and thus preventing its free rotation. In prior art finger gyroscopes, such as those in CN 107 320 973 A, a side cover with a central recess is shown, which has a larger diameter than the inserted ball bearing. A second cover cap with centered projections is inserted into the central recess of this cover. The side covers are embedded in the outer shell of the flywheel; therefore, in this finger gyroscope, the distance between the inner surfaces of the covers is smaller than the width of the rotating body. This finger gyroscope therefore has the disadvantage that it cannot be held in place by the outer edge of the covers.Since the covers and the rotatable flywheel merge seamlessly without any height difference, it is also necessary to ensure that the finger spinner is held in its center, as the covers disclosed in CN 107 320 973 A are rotatably connected to the rotating housing. Therefore, the covers in CN 107 320 973 A also have a central recess into which a second cover is inserted to hold the finger spinner. Thus, the covers according to CN 107 320 973 A are not the non-rotating, disc-shaped end caps of the rotatable game body of the present invention. Furthermore, the covers according to CN 107 320 973 A are not disc-shaped end caps with flat surfaces that are particularly suitable for printing.

[0099] The disc-shaped end caps of the rotatable game body of the present invention can be made of plastic, glass, wood, or metals such as aluminum. Preferably, the disc-shaped end caps are made of polypropylene (PP), and more preferably of polyvinyl chloride (PVC), and particularly preferably of polyoxymethylene (POM). Further non-exhaustive examples of suitable materials include metals such as cast iron, steel, stainless steel, aluminum alloys, copper alloys, magnesium alloys, titanium alloys, and zinc alloys; ceramics such as glasses like borosilicate glass, glass-ceramics, quartz glass, and soda-lime glass, or technical ceramics such as silicon, silicon carbide, silicon nitride, and tungsten carbide; composite materials such as aluminum-silicon carbide, carbon fiber reinforced plastic (CFRP), and glass fiber reinforced plastic (GFRP); natural materials such as wood or bamboo; and polymers or plastics such as elastomers.Natural rubber, thermoplastics such as acrylonitrile butadiene styrene copolymer (ABS), cellulose acetate (CA), ionomers, polyamides such as nylon, polycarbonates (PC), polyetheretherketone (PEEK), polyethylene (PE), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyoxymethylene (POM), polypropylene (PP), polystyrene (PS), polyurethane thermoplastics, polyvinyl chloride (PVC), Teflon (PTFE), thermosets such as epoxy resins, phenolic resins, and polyesters. In some embodiments, the disc-shaped end caps can be made of different materials. In some embodiments, the disc-shaped end caps can be made of the same material. It is preferred if the disc-shaped end caps are made of the same material.In preferred embodiments, the disc-shaped end caps have a diameter larger than the diameter of the centered ball bearing; in some preferred embodiments, the disc-shaped end caps have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 to 1.1 times, more preferably 0.95 to 1.05 times the outer diameter of the flywheel.It is therefore preferred if the material from which the disc-shaped side caps are manufactured does not plastically deform or break when a small compressive force is applied perpendicularly to the disc-shaped side caps, particularly at the outer edge (R1 and R2) of the disc-shaped side caps, i.e., at the maximum distance from the center of the disc-shaped side caps, i.e., at the distance of the outer radius of the disc-shaped side caps. It is preferred if a compressive force of at least 50 N, more preferably at least 60 N, more preferably at least 70 N, more preferably at least 80 N, more preferably at least 90 N, and more preferably at least 100 N is necessary to bend the first or second disc-shaped side cap at the outer edge (R1 or R2) of the respective disc-shaped side cap in the direction of the flywheel, whereby the disc-shaped side caps are plastically deformed or break.It is therefore particularly preferred that the disc-shaped side caps are not plastically deformed and / or do not break under an applied compressive force or under a compressive force of less than 100 N at the outer edge of the disc-shaped side caps.

[0100] This is particularly preferred if the disc-shaped side caps are made of a material in which, when one or both disc-shaped side caps are bent by a deflection f, which preferably corresponds to a maximum of the distance B 4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1) and / or the distance B 5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2), particularly if the diameter of the disc-shaped side caps is less than or equal to the diameter of the flywheel (S), no plastic deformation or fracture of the material occurs.Such materials include, but are not limited to, glass or plastics such as PMMA or amorphous and brittle plastics or glass fiber reinforced plastics or wood, which break under heavy stress rather than undergo permanent plastic deformation as with some soft plastics or metals or metal alloys.

[0101] Force is a directed physical quantity that can be represented by a vector. Describing a force requires not only its magnitude but also the direction in which it acts. In addition to the magnitude and direction of the force vector, its point of application also determines the force's effect. As used here, the term "compressive force" therefore refers to a force acting perpendicularly on the disc-shaped end caps in the direction of the freely rotating flywheel, such that the disc-shaped end caps are movable relative to the freely rotating flywheel. The term "compressive force," as used here, preferably refers to the force required to compress the disc-shaped end caps, i.e.,to press in the direction of the freely rotating flywheel, so that the freely rotating flywheel is fixed in its position, wherein fixing the freely rotating flywheel in its position also means that a previously rotating flywheel is decelerated. The "pressing force" preferably acts on the outer edge of the disc-shaped side caps, since the magnitude of the pressing force required to fix the freely rotating flywheel in its position is smallest at the outer edge of the disc-shaped side caps. As used herein, the term "acting pressing force" denotes the magnitude of the force that preferably acts on the outer edge of the disc-shaped side caps, wherein the "acting pressing force" must preferably have a minimum magnitude to move the disc-shaped side caps against the freely rotating flywheel.If the applied pressure force is less than the minimum required to move the disc-shaped side caps against the freely rotating flywheel, the disc-shaped side caps will not move against the freely rotating flywheel. If the pressure force is continuously increased until it reaches the minimum required value, the disc-shaped side caps will move against the freely rotating flywheel at their outer edges, thus fixing the freely rotating flywheel in its position.

[0102] As used herein, the term "applied compressive force" refers to the force exerted when holding or compressing the disc-shaped side caps, for example, when the disc-shaped side caps have been moved against the freely rotating flywheel, such that the flywheel is fixed in its position and remains fixed in its position for a period of time. If the disc-shaped side caps are moved at their outer edge against the freely rotating flywheel by an applied compressive force at the outer edge of the disc-shaped side caps, such that the freely rotating flywheel is fixed in its position, then the freely rotating flywheel remains fixed in its position as long as the applied compressive force is kept constant.When the applied pressure force is reduced, that is, when the applied pressure force subsides, the disc-shaped end caps preferably return to their position as it was before the pressure force was applied. In other words, the disc-shaped end caps regain the same distance from the freely rotating flywheel as they were before the pressure force was applied. Therefore, the applied pressure force preferably corresponds to the force at the outer edge of the disc-shaped end caps that must be exerted to hold the end caps in the compressed position so that the freely rotating flywheel remains fixed in its position. The subsidence of the applied pressure force thus also corresponds to the release of the disc-shaped end caps, allowing them to return to their original starting position.

[0103] It is further preferred that, in the case of a small deflection f, i.e., a bending of the disc-shaped side caps, which preferably corresponds at most to the distance B 4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1) and / or the distance B 5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2), particularly if the diameter of the disc-shaped side caps is less than or equal to the diameter of the flywheel (S), a substantially elastic deformation takes place, so that after the force is removed the disc-shaped side caps return to their original state.It is therefore preferred that the material from which the disc-shaped side caps are made behaves elastically or viscoelastically or essentially elastically when bent by a small deflection f, preferably by 0.1 - 3.0 mm, by 0.3 mm - 2.0 mm, more preferably by 0.5 mm - 1.5 mm and most preferably by 0.8 mm - 1.2 mm, so that the disc-shaped side caps are not plastically deformed or break.

[0104] It is therefore also preferred that the material from which the disc-shaped end caps are made is not a very elastic and soft material, i.e., preferably not a material with a low modulus of elasticity, in which the disc-shaped end caps bend even when the rotatable playing element is held in place, so that the disc-shaped end caps at the outer edge are movable even under a slight applied pressure force against the freely rotatable flywheel, thus fixing the freely rotatable flywheel in its position. The rotatable playing element of the present invention preferably has opposing disc-shaped end caps, which preferably have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times.more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 to 1.1 times, more preferably 0.95 to 1.05 times the diameter of the flywheel, or preferably equal to the diameter of the flywheel, so that the rotatable playing element does not have to be held exclusively in the center of the rotatable playing element, but can also be held at the outer edge (R1 or R2) of the side-shaped end caps (K1 or K2) without hindering the rotatable flywheel during rotation, i.e., without the rotatable to fix the swing body in its position. Therefore, it is preferable tothat the compressive force applied for holding, or the compressive force applied during holding, at the outermost edge (R1 or R2) of the disc-shaped side caps (K1 or K2) does not cause the disc-shaped side caps to deflect by a displacement f, which preferably corresponds at most to the distance B4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1) and / or the distance B5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2), particularly if the diameter of the disc-shaped side caps is less than or equal to the diameter of the flywheel (S), causing the disc-shaped side caps to contact the rotatable flywheel ring and prevent the free rotation of the flywheel, thus fixing the freely rotatable flywheel in its position. Therefore, it is preferred thatif the applied compressive force is necessary to bend the disc-shaped side caps by a deflection f, wherein the deflection f preferably corresponds at most to the distance B 4 between the flywheel (S) and the inner surface of the first disc-shaped side cap (K1) and / or the distance B 5 between the flywheel (S) and the inner surface of the second disc-shaped side cap (K2), in particular if the diameter of the disc-shaped side caps is less than or equal to the diameter of the flywheel (S), is not less than 15 N, preferably is not less than 14 N, more preferably is not less than 13 N, more preferably is not less than 12 N, more preferably is not less than 11 N and particularly preferably is not less than 10 N and particularly preferably is not less than 5 N.

[0105] Therefore, the present invention preferably relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps do not plastically deform or break when subjected to a compressive force of up to 40 N, preferably up to 50 N, preferably up to 60 N, preferably up to 70 N, preferably up to 80 N, preferably up to 90 N, preferably up to 100 N at the outer edge (R1) and (R2) perpendicular to the disc-shaped side caps (K1) and (K2), and wherein the disc-shaped side caps do not bend or are not movable against the freely rotatable flywheel (S) when subjected to a compressive force of less than 5 N, preferably less than 10 N, preferably less than 15 N at the outer edge (R1) and (R2) perpendicular to the disc-shaped side caps (K1) and (K2), in order to fix the freely rotatable flywheel (S) in its position.

[0106] Therefore, the present invention relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped end caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped end cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped end cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped end caps (K1) and (K2) are movable at the outer edges (R1) and (R2) relative to the freely rotatable flywheel (S) in order to rotate the freely rotatable flywheel. (S) to fix in its position,wherein the disc-shaped side caps (K1) and (K2) preferably have a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the outer diameter of the flywheel (S), wherein the distance (B 0 ) of the inner surfaces (I1, I2) of the opposing disc-shaped side caps (K1) and (K2) is greater than the width (B 3 ) of the flywheel (S),wherein the disc-shaped side caps are not plastically deformed or break when subjected to a compressive force of up to 40 N, preferably up to 50 N, preferably up to 60 N, preferably up to 70 N, preferably up to 80 N, preferably up to 90 N, preferably up to 100 N, applied at the outer edge (R1) and (R2) perpendicular to the disc-shaped side caps (K1) and (K2), and wherein the disc-shaped side caps are not bent when subjected to a compressive force of less than 5 N, preferably less than 10 N, preferably less than 15 N, applied at the outer edge (R1) and (R2) perpendicular to the disc-shaped side caps (K1) and (K2).

[0107] Therefore, the present invention preferably relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps (K1) and (K2) at the outer edge (R1) and (R2) are reversibly movable against the freely rotatable flywheel (S) by a compressive force acting parallel to the axis of rotation in the range of 5N to 100N, preferably 8N to 90N, preferably 10N to 80N, preferably 12N to 70N, preferably 14N to 60N, preferably 16N to 50N, preferably 18N to 40N, preferably 20N to 35N.

[0108] The game ring according to the invention is part of a children's game and must therefore have a printable, flat, and visible surface along the axis of rotation on the outer casing (M) of the spinning body (S). It must also allow the user to select one of the printed motifs by stopping the rotating spinning body (S), with stopping and fixing the spinning body (S) being achieved by pressing the side caps (K1) and (K2) against the spinning body (S). The pressure should be within a range comfortable for children of approximately 14 N to 60 N, preferably 16 N to 50 N, preferably 18 N to 40 N, and preferably 20 N to 35 N. When the pressure is reduced, the spinning body (S) is released, the side caps (K1) and (K2) reversibly return to their initial position, and the spinning body (S) can be rotated again and then stopped. Several million of these rotation and stop cycles can be performed with the game ring.

[0109] A further advantage of the rotatable game body of the present invention compared to the finger spinners of the prior art is that the disc-shaped side caps of the rotatable game body according to the invention provide a larger surface area for printing. The finger spinners of the prior art according to DE 20 2017 103 662 U1, CN 107 754 323 A, CN 107 395 815 A or US 9,914,063 B1 have cover caps that are almost completely covered by the fingers when held.If the disc-shaped end caps have a diameter larger than the diameter of the centered ball bearing, preferably in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably The outer surfaces of the disc-shaped side caps can preferably be printed 0.95 to 1.1 times, more preferably 0.95 to 1.05 times, of the swing ring, so that the printed figures, motifs, shapes and text are not completely covered by the fingers.The advantage of printing on the disc-shaped end caps compared to printing on the outer surfaces of a spinning top lies in the fact that the disc-shaped end caps do not rotate, i.e., they are not freely rotatable. Therefore, the figures, motifs, images, and text remain clearly visible even during the spinning top's rotation. Thus, prior art finger spinners do not offer comparable printable surfaces where the figures, motifs, images, and text remain clearly visible during use, i.e., while playing. Even in the prior art finger spinner according to CN 107 320 973 A, the covers are rotatable and connected to the rotating body, and therefore rotate with it. The representation of figures, motifs, shapes, and text on non-rotating surfaces is therefore not possible.The non-rotating disc-shaped side caps increase the enjoyment and fun of printed surfaces during the use of the rotating game body of the present invention, that is, during play, that is, during the rotation of the freely rotating flywheel of the present invention.

[0110] In preferred embodiments, the disc-shaped side caps of the rotatable game body of the present invention can be replaced. Since, in the prior art, the non-rotating cover caps of finger spinners are largely obscured by the fingers when held, and since figures, motifs, images, and text on the outer lateral surface of the rotating body are not clearly visible during rotation due to the rotational movement, replacing the cover caps of prior art finger spinners does not increase the enjoyment of the game.In the rotating game piece of the present invention, the figures, motifs, images, and text are preferably not completely obscured when the piece is held, allowing the user to freely exchange the disc-shaped end caps according to their own preferences and to use different disc-shaped end caps printed with figures, motifs, images, and text. Thus, the rotating game piece of the present invention advantageously provides a rotating game piece with individually printed outer surfaces on the disc-shaped end caps that do not rotate during use and therefore provide enjoyment even during rotation, which many users, especially children, find very entertaining.

[0111] A further advantage of the rotatable game body of the present invention lies in the fact that the disc-shaped end caps can be printed with figures, motifs, images, shapes, and text in the form of one or more markings. These markings, after the freely rotatable spinning body has come to a standstill and its rotation has ceased, point to a printed field on the outer rim of the rotatable game body, or, in the case of a cylindrical outer shell, on the cylinder surface or surface. With finger spinners of the prior art, such a marking is inevitably obscured when the spinner is held with the fingers, or the user must awkwardly lift their finger to see which field might be selected. Since the rotating bodies of finger spinners of the prior art are freely rotatable, it is likely that the rotating body will continue to rotate or move unintentionally.especially when the hand or fingers of the user holding such a finger spin are moved. Therefore, with the rotatable game body of the present invention, the opposing disc-shaped side caps can have a diameter preferably in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to 1.1 times, more preferably 0.95 times to 1.05 times the diameter of the rotatable flywheel, a rotatable playing element is provided,which allows for the easy and convenient integration of fun-enhancing additional functions into a game by providing disc-shaped side caps with larger outer surfaces that are preferably printable. The rotating game body further offers the advantage that the disc-shaped side caps are preferably movable at the outer edge against the freely rotating flywheel to fix the flywheel in its position, so that, unlike prior art finger spinners, unintentional rotation or movement of the freely rotating flywheel is prevented, since the fixed, freely rotating flywheel cannot rotate freely.

[0112] The disadvantages of state-of-the-art finger spinners lie, among other things, in their sole purpose of generating fun and enjoyment through the rotation of the spinning body. For this reason, the focus in the development of state-of-the-art finger spinners is on providing rotating bodies that exhibit additional effects during rotation, such as light effects from built-in LEDs. In its simplest form, the visual effect achieved with state-of-the-art finger spinners consists of the fact that the spinners have two, three, or more "arms" that, during rotation, become indistinguishable from one another, so that to the user's eye, the rotating body with its two, three, or more "arms" appears circular and round.

[0113] The rotatable game body of the present invention has advantageous properties, since the disc-shaped side caps can be printed on their outer surfaces and the diameter of the disc-shaped side caps is preferably large enough that figures, motifs, images and text are not completely obscured, but also that the outer shell of the spinning body has one or more printable surfaces, preferably on the outer rim of the outer shell, i.e. the shell surface, or the cylinder surface in the case of a cylindrical outer shell, so that the visual effects of the finger spinners from the prior art can be integrated into the rotatable game body of the present invention.Thus, the rotating game body of the present invention can preferably be used to display figures, images, motifs, and text during rotation, as well as to provide visual effects through the rotation of the rotating flywheel simultaneously with a rotating game body according to the invention. Surprisingly, it was found that such a combination of printable non-rotating surfaces and printable rotating surfaces has an increased and positive effect on the fun and enjoyment of playing with the rotating game body of the present invention.

[0114] By providing a freely rotatable flywheel between two non-rotating opposing side caps with a diameter in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 times to According to the invention, a rotatable playing element is provided that is 1.1 times, more preferably 0.95 to 1.05 times, the diameter of the rotatable flywheel.which is easy to handle on the one hand and, on the other hand, increases the fun of playing with the rotating game piece of the present invention by combining the enjoyment of a freely rotating spinning body with the enjoyment of printable non-rotating outer surfaces, which offer additional possibilities for increasing the fun of playing. With these advantageous properties, the present invention therefore provides a rotating game piece with which, in particular, the fun of playing is maintained over a long period of time and the motivation and interest in playing with the rotating game piece are maintained or even increased over a long period. Furthermore, the advantageous technical properties of the rotating game piece according to the invention also allow for the integration of pedagogically valuable functions into the gameplay.which have a beneficial and positive learning effect, especially for children, in addition to the enjoyment of the game. In some embodiments, the material from which the disc-shaped end caps are made can be a metal or a metal alloy, e.g., steel or stainless steel, which exhibit a high modulus of elasticity E. The force required to bend a material with a given geometric shape depends on the material properties of the material used, as well as on the geometric shape and the stress on the material. The force required to bend a disc-shaped end cap depends on where the force is applied. If the force is applied perpendicular to the disc-shaped end caps, the required compressive force to bend the disc-shaped end caps by the maximum deflection is the lowest.The maximum distance to the center of the side cap is applied when the compressive force is applied at its maximum distance, i.e., preferably at the outer edge (R1 or R2) of the disc-shaped side caps (K1 or K2). Therefore, the minimum compressive force required to move the disc-shaped side caps against the freely rotating flywheel, and thus to fix the flywheel in position, depends on the diameter of the disc-shaped side cap, the diameter of the centered projection on the inner surface of the disc-shaped side cap, the shape of the centered projection on the inner surface of the disc-shaped side cap, the thickness, width, or height of the disc-shaped side cap, and the material properties of the material from which the disc-shaped side cap is made. The compressive force required is higher the...The thicker, wider, or higher the side cap, the smaller the radius of the side cap, and the stiffer the material (e.g., with a high modulus of elasticity), the more pronounced the bending behavior. When a material is bent, it can behave elastically, inelastically, viscoelastically, or rigidly. Thus, a material can be plastically deformed or even break at a certain deflection, or it can be elastically deformed at a certain deflection, so that after the force is removed, the material elastically returns to its original state.

[0115] If the disc-shaped end caps have a diameter that is less than or equal to the diameter of the flywheel, then the disc-shaped end caps can only be moved relative to the freely rotating flywheel, i.e., deflected inwards, to the extent of the distance B4 or B5 between the inner surfaces of the disc-shaped end caps and the flywheel. Therefore, it is preferable if the disc-shaped end caps do not undergo plastic deformation or breakage when deflected by the distance between the inner surfaces of the disc-shaped end caps and the flywheel. Therefore, the distance between the disc-shaped end caps and the flywheel must be taken into account.The diameter of the disc-shaped side caps is preferably in the range of 0.5 to 1.5 times, more preferably 0.5 to 1.2 times, more preferably 0.7 to 1.4 times, more preferably 0.7 to 1.3 times, more preferably 0.8 to 1.4 times, more preferably 0.8 to 1.3 times, more preferably 0.7 to 1.2 times, more preferably 0.8 to 1.2 times, more preferably 0.7 to 1.1 times, more preferably 0.8 to 1.1 times, more preferably 0.9 to 1.1 times, more preferably 0.95 to 1.1 times, more preferably 0.95 to 1.05 times the diameter of the flywheel. For example, if the diameter of the disc-shaped end caps is...If the displacement corresponds to 1.2 times the diameter of the flywheel, the disc-shaped side caps can be deflected at their outer edges by a displacement greater than the distances B4 and B5, respectively. It is preferred that the disc-shaped side caps do not undergo plastic deformation or breakage even at this displacement.

[0116] In a further preferred embodiment, the disc-shaped side caps and the flywheel are spaced at a suitable distance, such that, for example, a force directed inwards perpendicular to the disc-shaped side caps can preferably be exerted at the outer edge of the disc-shaped side caps, thus decelerating the rotation of the flywheel after it has been set in motion. In an exemplary embodiment of the rotatable play element, the force described above can be exerted by squeezing the play element together at the outer edge of the side caps with two fingers. In a preferred embodiment, the freely rotating flywheel, once set in motion, is decelerated by squeezing the disc-shaped side caps together, preferably at their outer edge.It is preferred that at least a pressure force of 20 N must be exerted on the outer edges of the disc-shaped side caps in order to slow down the rotating, freely spinning flywheel.

[0117] In other words, it is preferred that the disc-shaped end caps and the flywheel have a suitable distance between them, such that the disc-shaped end caps are movable at their outer edges against the freely rotating flywheel in order to fix the freely rotating flywheel in its position. "Fixing" as used herein means that a flywheel that has previously been set in rotation is slowed down until the freely rotating flywheel comes to a standstill, and also that a fixed flywheel cannot be set into rotation. In other words, if a freely rotating flywheel is fixed, its position is maintained. In an exemplary embodiment of the rotatable game piece, a force acting perpendicular to the disc-shaped end caps can be exerted by squeezing the game piece at the outer edge of the end caps with two fingers.In a preferred embodiment, the flywheel, fixed by the compression of the disc-shaped side caps, cannot be set into rotation by the applied pressure force. Only when the disc-shaped side caps are no longer compressed, i.e., when the applied pressure force subsides, do the disc-shaped side caps preferably return to the position they had before the pressure force was applied. This means that the disc-shaped side caps regain the same distance to the freely rotating flywheel as before the pressure force was applied, so that the freely rotating flywheel is no longer fixed, i.e., it is once again freely rotatable and can therefore be set into rotation again.

[0118] In order to slow down or fix the rotation of the flywheel by compressing the side caps at their outer edge, it is preferred that the side caps are made of a material which, under a certain force, causes the material to bend and thus the disc-shaped side caps to bend, i.e., cause a deflection. fThe outer edge of the disc-shaped side caps is compressed, causing the disc-shaped side caps made of this material to deform essentially elastically and to return to their original state after the force is removed. It is particularly preferred that the side caps are not plastically or permanently deformed by the compression, i.e., by the applied compressive force. In other words, it is preferred that the material from which the disc-shaped side caps are made is elastically deformed when the side caps are compressed at their outer edge to slow down the rotation of the flywheel or to fix the flywheel, thus causing the disc-shaped side caps to deform elastically. It is further preferred that if the inner surfaces of the disc-shaped side caps each have a distance B4 or B4, the side caps are elastically deformed.B 5 to the flywheel body, the disc-shaped side caps are bent inwards by a force directed inwards perpendicular to the disc-shaped side caps, preferably a compressive force acting on the outer edge of the disc-shaped side caps, by the distance B 4 or B 5, i.e., are moved, i.e., are bent inwards towards the flywheel body or are bent towards each other, i.e., are movable against the freely rotatable flywheel body, so that the disc-shaped side caps and the flywheel body come into contact, i.e., that the disc-shaped side caps are bent inwards towards the flywheel body or towards each other.The disc-shaped side caps and the flywheel are moved so that they touch, causing frictional forces to decelerate the rotation of the flywheel after it has been set in motion, and thus fixing the flywheel in its position. After the force is removed, i.e., after the applied pressure has subsided, the disc-shaped side caps return to their original state. In other words, after the force is removed, they return to the distance B4 or B5 from the flywheel, i.e., to the position they were in before the pressure was applied. In other words, at least one of the disc-shaped side caps is preferably deflected by a distance f of B4 or B5. f= B 4 or B 5 are not plastically deformed or break, meaning that the material from which the disc-shaped side caps are made essentially remains unchanged during deflection f = B 4 or B 5 bends elastically when a compressive force acts or is applied to the outer edge of the disc-shaped side caps, whereby the rotation of the freely rotatable flywheel is slowed down or the freely rotatable flywheel is fixed in its position.

[0119] The present invention therefore particularly preferably relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position.

[0120] A force at the outer edge of the disc-shaped end caps means that the force, or point force, or pressure force, acting or applied perpendicular to the disc-shaped end caps, acts at a point corresponding to the maximum distance from the center of the disc-shaped end caps, i.e., the outer radius of the disc-shaped end cap. If the disc-shaped end caps are cylindrical, the force at the outer edge of the disc-shaped end caps, i.e., at a distance equal to the outer radius of the disc-shaped end caps, can advantageously act at any point on the outer circumference at the outer edge of the disc-shaped end caps.If the disc-shaped end caps have a triangular, square, pentagonal, hexagonal, octagonal, or polygonal shape, preferably a regular polygon, it is preferred that the applied compressive force acts on the outer edge of the disc-shaped end caps at the maximum distance from the center. In the case of a regular polygon, as described above, the vertices of the polygon all lie on an imaginary circle. Therefore, it is preferred that the applied compressive force acts on the outer edge of the disc-shaped end caps at the vertices of the regular polygon, since the vertices have the maximum radius from the center of the disc-shaped end caps.Since the compressive force acting on the outer edge of the disc-shaped side caps can advantageously act at any point on the outer circumference of the disc-shaped side caps in the case of a cylindrical outer shell of the freely rotatable flywheel, preferably in the form of a hollow cylinder with a constant wall thickness (W) and a constant outer radius, a cylindrical outer shell, preferably in the form of a hollow cylinder, is particularly preferred.

[0121] The present invention therefore preferably relates to a rotatable game body suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the freely rotatable flywheel (S) with the outer shell (M) is cylindrical and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable, wherein preferably the wall thickness (W) of the cylindrical outer shell (M) is constant, wherein preferably the outer radius of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is constant.

[0122] If the first and second disc-shaped side caps have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape, preferably in the form of a regular polygon, then it is preferred that the corners of the regular polygon of the first and the second disc-shaped side caps lie on top of each other, so that the applied pressure force can act on opposite sides of the rotatable flywheel body.

[0123] It is therefore particularly preferred if the distance B4 between the inner surface of the first disc-shaped side cap and the flywheel, and the distance B5 between the inner surface of the second disc-shaped side cap and the flywheel, remain constant or equal before the force is applied perpendicularly inwards to the disc-shaped side caps, preferably at the outer edge of the disc-shaped side caps, preferably at the maximum distance from the center of the disc-shaped side caps, i.e., the outer radius of the disc-shaped side caps, and after the force is applied or ceases. That is to say, it is preferred that B4 (before force application) = B4 (after force application) and B5 (before force application) = B5 (after force application).It is therefore preferred that the disc-shaped side caps on the outer edge can be moved reversibly against the freely rotating flywheel by an acting pressure force in order to fix the freely rotating flywheel in its position.

[0124] It is preferred that an acting compressive force of at least 20 N must be exerted perpendicular to the disc-shaped side caps, preferably at the outer edge of the disc-shaped side caps, so that the disc-shaped side caps are deflected at least by the distance between the disc-shaped side caps and the freely rotatable flywheel, i.e. by the distance B 4 or B 5, so that a braking of the rotating flywheel is effected or the freely rotatable flywheel is fixed in its position.

[0125] Technically relevant performance parameters can be determined by a specialist using methods known from the prior art, and a stress-strain diagram can be created for a given material. A stress-strain diagram distinguishes between different regions: the linear-elastic region, in which the strain is proportional to the stress and thus Hooke's Law applies; the non-linear-elastic region, in which the deformation is still reversible, i.e., elastic, but no longer proportional to the stress; and the elastic-plastic region, in which the deformation is partially plastic, i.e., irreversible. If the elastic limit is exceeded, permanent deformations occur in a component or material.It is therefore preferred that the disc-shaped side caps at the outer edge are reversibly movable against the freely rotatable flywheel by an acting compressive force in order to fix the freely rotatable flywheel in its position, wherein the elastic limit of the material of the disc-shaped side caps is not exceeded when there is a deflection f of the disc-shaped side caps at the outer edge of the side caps in the direction of the freely rotatable flywheel.

[0126] The strength of a material describes its ability to withstand mechanical stresses before failure occurs and is expressed as mechanical stress σ (force per cross-sectional area). Failure can manifest as excessive deformation, particularly plastic or permanent deformation, or fracture. Different strengths can be achieved depending on the material type, condition, temperature, load, and loading rate. Therefore, the strength of a material depends on the material itself, the duration of the stress, and the type of stress.

[0127] The stiffness of a material describes the relationship between strain and mechanical stress, and thus the resistance of a body to elastic deformation caused by a force or moment (bending moment or torsional moment). The stiffness of a component depends not only on the elastic properties of the material (the modulus of elasticity) but also on the geometry of the component. Bending stiffness is the product of the material's modulus of elasticity (E) and the area moment of inertia (I) of the cross-section. The curvature of the body is proportional to the applied bending moment and inversely proportional to the bending stiffness. A bending moment is defined as a moment that loads a slender (e.g., a beam) or thin component, such as a plate, and consequently bends it. To determine the effects of a moment load, the distribution of the bending moment along, for example, the longitudinal orientation of a beam, is considered.Generally, the deformation or deflection curve of the component and the resulting mechanical stresses or bending stresses are determined in order to compare them with the maximum permissible stresses or strengths of the material. For example, a beam fixed at one end can be subjected to a point load P at a distance L from its free end by a force F. The cross-section and material properties are preferably constant along the beam. The bending moment is zero at the point of force application and increases linearly to a maximum value M = F · L at the fixed end.

[0128] Elasticity is the property of a body or material to change its shape under the influence of a force and to return to its original shape when the force is removed. A distinction is made between linear-elastic behavior, described by Hooke's Law, which generally occurs at small deformations, and non-linear elastic behavior, in which the stress depends non-linearly on the deformation. If a deformation remains after the deflecting forces are removed, this is called elastic hysteresis. All materials have a limit to their elastic range, beyond which non-elastic behavior is observed. The modulus of elasticity (E), also known as the Young's modulus, is a material property in materials science that, in the case of linear-elastic behavior, describes the proportional relationship between stress and strain during the deformation of a solid body.The modulus of elasticity is the constant of proportionality in Hooke's law. The greater the resistance a material offers to elastic deformation, the higher its value. A component made of a material with a high modulus of elasticity (e.g., steel) is stiffer than a component of the same design made of a material with a low modulus of elasticity (e.g., rubber). The modulus of elasticity is defined as the slope of the graph in the stress-strain diagram under uniaxial loading with infinitesimal strain change at stress strength. Most materials have at least a small linear-elastic range, also known as the Hookean range. Real materials have an elastic limit, within which they deform elastically and beyond which dissipative processes such as fracture occur.Hooke's law describes the elastic deformation of solids when their deformation is proportional to the applied load (linear-elastic behavior). This is typical for metals when the load is not too great, and for hard, brittle materials such as glass, ceramics, and silicon, often until fracture.

[0129] The yield strength is a material property and denotes the stress up to which a material exhibits no permanent plastic deformation under uniaxial and moment-free tensile stress: below the yield strength, the material elastically returns to its original shape after unloading; above the yield strength, a deformation remains, resulting in elongation in a tensile test and permanent curvature in a bending test. The corresponding properties for other types of material stress are called compression, bending, and torsional limits, which are also collectively referred to as yield and elastic limits. It is therefore preferred that the yield strength or bending limit of the material of the disc-shaped side caps is not exceeded at the outer edge of the side caps in the direction of the freely rotating flywheel when the deflection f of the disc-shaped side caps is applied.

[0130] The elastic limit of a material is defined as the magnitude of mechanical stress below which the material is elastic, meaning it returns to its original shape when the stress is removed (reversible deformation). Exceeding the elastic limit results in irreversible elongation or compression, or plastic deformation. Elastic limits, along with other material properties, are used to calculate and determine the strength and stability of mechanical structures.

[0131] Surprisingly, it was found that a smaller applied compressive force is required at the outer edge of a disc-shaped side cap to bend or move the disc-shaped side cap by the distance between the flywheel and the inside of the side cap, or to bend or move the distance B4 or B5 and thus slow down the rotating flywheel or to fix the freely rotating flywheel in its position, the smaller the width of the disc-shaped side caps, the smaller the distance between the side caps and the freely rotating flywheel, the further the point of application of the compressive force is from the center of the disc-shaped side caps, and the greater the difference between the outer diameter of the disc-shaped side caps and the outer diameter of the centered extensions.

[0132] The diameter of the centered projections on the inside of the disc-shaped end caps therefore plays an important role. If, for example, the diameter of the centered projections is assumed to be point-like, the distance between this point and the point of application of the compressive force—which, in this approximation, corresponds to the outer radius of the disc-shaped end caps—is included in the calculation of the force acting on the outer edge of a disc-shaped end cap made of a given material. This means that, when a compressive force is applied to the outer edge of the disc-shaped end cap, the distance between the center point and the point where the force acts is referred to as the length.In such an approximation, assuming that the centered extensions are point-like, the maximum length to the point of application of the compressive force is equal to the length of the outer radius, i.e., half the diameter of the disc-shaped end caps. If the diameter of the centered extension is larger and has, for example, an outer diameter equal to half the diameter of the disc-shaped end caps (i.e., the disc-shaped end caps have a diameter 50% larger, or twice the diameter of the centered extensions), then the length to the point of application of the compressive force corresponds to half the outer radius of the disc-shaped end caps. It is known to those skilled in the art that when bending a beam or plate clamped at one end, a greater force must be applied the shorter the length of the beam or plate.A beam or plate clamped at one end can only be subjected to a compressive force at the unclamped end or side, causing bending. In the rotatable game piece of the present invention, the disc-shaped end caps each have a central projection on their inner surfaces, each of which is suitable for engaging with the flywheel, preferably in a form-fitting manner. The disc-shaped end caps are thus clamped centrally via the central projections and can be subjected to a compressive force at their unclamped outer edges, causing bending. In contrast to tensile and compressive tests, bending stress generates variable stress and strain in the cross-section of the body.A tensile stress thus arises on the upper surface of the disc-shaped end caps, and a compressive stress on the lower surface. The disc-shaped end cap reacts to this stress with a compression or elongation of the outer fiber. The maximum elongation is also referred to as the outer fiber elongation. Therefore, the outer fiber elongation ε must be calculated at the outer edge of the disc-shaped end caps during the deflection f. Preferably, the outer fiber elongation ε should be below the maximum permissible elongation εzul.

[0133] This means, applied to the rotatable play element of the present invention, that the larger the outer radius or diameter of the centered extensions, the greater the compressive force that must be exerted on the outer edge of the disc-shaped end caps in order for a disc-shaped end cap to be moved or bent by a given deflection f. In other words, the smaller the length, the greater the magnitude of the compressive force, and the greater the compressive force, the more likely plastic deformation or fracture of the material will occur. Therefore, in order for the disc-shaped end caps to be moved or deformed reversibly or elastically by a deflection f at their outer edge, the diameter of the disc-shaped end caps, the diameter of the centered extensions, and thus also the diameter of the second central recess must be taken into account.

[0134] Therefore, it is preferred that the diameter of the disc-shaped side caps be at least twice the outer diameter of the centered extensions of the disc-shaped side caps. It is also preferred that the diameter of the disc-shaped side caps be at least one-third larger than the diameter of the centered extensions of the disc-shaped side caps. It is likewise preferred that the diameter of the disc-shaped side caps be at least one-third larger than the diameter of the second central recess of the flywheel. Therefore, it is preferred that the diameter of the disc-shaped side caps be at least 50%, more preferably at least 40%, and most preferably at least 30% larger than the diameter of the centered extensions of the disc-shaped side caps.It is also preferred that the diameter of the disc-shaped side caps is at least 50%, more preferably at least 40%, and most preferably at least 30% larger than the diameter of the second central recess of the flywheel. Therefore, it is preferred that the disc-shaped side caps have a diameter at least 1.5 times, more preferably at least 1.4 times, and most preferably at least 1.3 times larger than the diameter of the centered extensions of the disc-shaped side caps. It is also preferred that the disc-shaped side caps have a diameter at least 1.5 times, more preferably at least 1.4 times, and most preferably at least 1.3 times larger than the diameter of the second central recess of the flywheel.

[0135] A non-exhaustive overview of the material properties modulus of elasticity, yield strength, and tensile strength for some materials such as metal alloys and polymers (plastics) is shown in Table 1. It is known to those skilled in the art that these values ​​depend on the exact composition and properties of the respective material. Table 1: Overview of the modulus of elasticity, yield strength and tensile strength of some materials material E-modulus [N / mm²< ] at 20°C Tensile stress [N / mm²<] Tensile strength [N / mm²] Steel 200000 - 216000 250 - 1155 345 - 1640 Magnesium alloys 42000 - 47000 70 - 400 185 - 475 Aluminum alloys 68000 - 82000 30 - 500 58 - 550 glasses 40000 - 110000 22 - 177 Wood (longitudinal) 6000 - 20000 30 - 70 60 - 100 Wood (transverse) 500 - 3000 2-6 4-9 Rubber (natural rubber) 15 - 25 20 -30 22 - 32 Polypropylene (PP) 900-1600 21 - 37 28 - 41 Polymethyl methacrylate (PMMA) 2200 - 3800 54 - 62 48 - 72 Polyethylene (PE) 600 - 900 18 - 29 21 - 45 Polyethylene terephthalate (PET) 2800 - 4100 57 - 62 48 - 72 Polyvinyl chloride (PVC) 2100 - 4100 35 - 52 41 - 65 Polycarbonat 2000 - 2440 59 - 70 60 - 72 nylon 2600 - 3200 50 - 95 90 - 165 polyester 2000 - 4400 33 - 40 41 - 90 Teflon (PTFE) 400 - 550 15 - 25 20 - 30 Polyetheretherketone (PEEK) 3500 - 4200 65 - 95 70 - 103 polystyrene 2300 - 3300 29 - 56 36 - 57 Polyoxymethylene (POM) 2500 - 5000 49 - 72 60 - 90 Polyurethane thermoplastics 1300 - 2100 40 - 54 31 - 62 Polyurethane elastomers 2-3 25 - 51 25 - 51 Cellulose polymers 1600 - 2000 25 - 45 25 - 50 Acrylonitrile butadiene styrene copolymers (ABS) 1100 - 2900 18-51 28 - 55 Plastics (general) approximately 400-7000

[0136] Thermoplastic polymers are classified into amorphous and semi-crystalline polymers based on their structure. Amorphous polymers are generally transparent and prone to stress cracking. Semi-crystalline polymers are opaque and usually tough. Thermoplastic polymers are further subdivided based on their temperature resistance: High-temperature plastics are suitable for continuous use at temperatures above 150°C, engineering plastics are suitable for continuous use at temperatures between 100°C and 150°C and exhibit good mechanical properties, and standard plastics such as polypropylene or polyethylene can be used continuously at temperatures below 100°C. The properties of these plastics can be tailored to specific applications by incorporating fillers, for example...Reinforcing fibers such as glass fibers are used to primarily increase strength properties, particularly tensile strength, but also other characteristics like compressive strength and heat resistance. Carbon fibers can be used as an alternative to glass fibers to increase strength. The incorporation of pigments and dyes allows for customized color settings in engineering plastics. The addition of UV or heat stabilizers reduces the effects of environmental factors or prolonged exposure to high temperatures, which can lead to discoloration or impaired mechanical properties in many plastics.

[0137] In general, in the prior art, mechanical properties are determined in a standardized tensile test to assess the behavior of plastics under short-term, uniaxial stress. Besides the behavior under stress and strain, the temperature and duration of the load are also important for selecting a plastic. The tensile stress σ is the tensile force at any given time during the test, referenced to the smallest measured initial cross-sectional area of ​​the specimen. The tensile strength σB is the tensile stress at maximum force. The tear strength σR is the tensile stress at the moment of tearing. The yield stress σS is the tensile stress at which the slope of the force-length-change curve first becomes zero. The strain ε is the change in length ΔL relative to the original gauge length L0 of the specimen at any given time during the test.The strain at maximum force is denoted by εB, the elongation at break by εR, and the strain at yield by εS. It should be noted that the modulus of elasticity E only exhibits a linear curve in the lowest region of the stress-strain diagram for plastics. In this region, Hooke's law applies, which states that the quotient of stress and strain (modulus of elasticity) (E = σ / ε in MPa or in N / mm²) is constant.

[0138] The following, using some simplifying approximations, shows the effects of the outer radius of the disc-shaped side caps, the outer radius of the centered extensions, the width of the disc-shaped side caps, the distance of the inner surfaces of the disc-shaped side caps to the freely rotatable flywheel, and the material from which the disc-shaped side caps are made on the applied compressive force by which the disc-shaped side caps are reversibly moved at their outer edge against the freely rotatable flywheel in order to fix the freely rotatable flywheel in its position. Although, for the sake of simplicity, a beam or plate clamped at one end is assumed below, it is known to those skilled in the art how the relationships described below can be transferred to a disc-shaped side cap of the rotatable play element of the present invention.Since approximations are made below for the sake of simplicity, the physical formulas and resulting forces shown below do not correspond to the absolute real forces that must be applied or can occur when a centrally clamped disc-shaped side cap is moved at the outer edge of the disc-shaped side cap against the freely rotating flywheel in order to fix the freely rotating flywheel.

[0139] As an approximation, a beam or plate fixed at one end is assumed, which is deflected under a point load F. Bending theory provides the deflection or displacement f for the beam or plate with constant cross-section. f = F . L 3 / 3 ⋅ E ⋅ I where f = deflection, F = force, L = length of the beam / plate, E = modulus of elasticity, 1 = area moment of inertia. The product of the modulus of elasticity E and the axial area moment of inertia I for the bending axis is the bending stiffness E I. The applied compressive force required to bend or move the beam or plate, which is fixed at one end, by a deflection f is therefore obtained by rearranging the above equation (I): F = 3 f ∗ E I / L 3

[0140] For a rectangular plate clamped on one side, the following equation (III) can be used for the area moment of inertia: I = b h 3 / 12 where I = area moment of inertia, b = diameter of the plate clamped on one side, h = width or height of the plate clamped on one side.

[0141] Substituting equation (III) into equation (II) and assuming that the diameter b = 2r and L = r, where r is half the length of the plate representing the outer radius of a disk-shaped side cap, and assuming that the centered extension is point-like and therefore the outer radius of the centered extension is negligibly small, equation (IV) is obtained: F = 0 , 5 f E h 3 / r 2

[0142] If the centered extension is not point-like and has an outer radius rf, then equation (V) results: F = 0 , 5 f E r h 3 / r − r f 3

[0143] As an example, with a deflection f of 1 mm and a plate width of 1 mm, which is assumed to be representative of the width of the disc-shaped side cap, and a material with a modulus of elasticity of E = 4000 N / mm², such as a plastic, an approximate compressive force F = 9.5 N results from equation (IV) for an outer radius of, for example, 14.5 mm for a disc-shaped side cap. Assuming that the centered extension has an outer radius of 6 mm, equation (V) yields a force of F = 47.2 N. If a 20% larger outer radius of a disc-shaped side cap is assumed, the approximate compressive force from equation (V) is F = 23.5 N. If a 20% smaller outer radius of a disc-shaped side cap is assumed, the approximate compressive force from equation (V) is F = 132.1 N.Equation (V) therefore approximates equation (VI) by including the variable x as an enlargement or reduction factor of the outer radius of the disc-shaped side cap: . F = 0 , 5 f E x r h 3 / x r − r f 3

[0144] The exemplary calculated compressive forces shown above, required to move a disc-shaped end cap at its outer edge against a freely rotating flywheel in order to fix the flywheel in its position, clearly demonstrate how sensitive the compressive force is to the technical proportions of the rotating play body, such as its diameter, width, height, and spacing, as well as to the material properties. These example calculations vividly illustrate how the magnitude of the required compressive force to move a disc-shaped end cap at its outer edge against a freely rotating flywheel increases when the outer radius of the centered projections is increased or the outer radius of the disc-shaped end caps is decreased. It is evident that the magnitude of the compressive force increases when a material with a higher modulus of elasticity is used.The magnitude of the applied pressure force also increases significantly when the distance between the disc-shaped side caps and the flywheel increases, that is, when the deflection f is increased.

[0145] The permissible deflection f can be calculated as a function of the permissible strain εzul of the material used. It is preferred that this permissible deflection f is not exceeded when the disc-shaped side caps are compressed.

[0146] The permissible strain εzul or stress σzul during a single, short-term deflection at 23°C can be estimated using the following rule: approximately the yield strain for semi-crystalline thermoplastics, about 70% of the yield strain for amorphous thermoplastics, and about 50% of the elongation at break for glass fiber-reinforced thermoplastics. For frequent, short-term applications, it is recommended to assume approximately 60% of the permissible values ​​for a single application. Under long-term or continuous loads, amorphous materials are susceptible to stress cracking. For amorphous materials, it is known that the risk of stress cracking is significantly lower at strains below approximately 0.5%. The maximum edge fiber strain εzul can also be calculated approximately. For brittle materials, the approximate elongation at break εbreak = yield strain εstretch, and thus εzul = 0.5 εbreak. For tough materials, the approximate elongation at break εbreak > 2 · elongation at yield εy and therefore εallow = 0.8 εy.For a non-exhaustive and non-restrictive selection of some plastics, the permissible elongations for short-term and long-term loads are listed as guideline values ​​(in %) in Table 2. selected materials (plastics) Table 2: Permissible strains (in %) for short-term and long-term loading of some material Permissible elongation [%] short-term long-term Acrylonitrile butadiene styrene copolymers (ABS) 1,5 - 2,0 0,8 Polycarbonate (PC) 1,5 - 2,0 0,8 Polymethyl methacrylate (PMMA) 1,5 - 2,0 0,6 Polystyrene (PS) 1,0 - 1,5 0,6 Polyvinyl chloride (PVC) 1,5 - 2,0 0,8 Styrene-acrylonitrile copolymers (SAN) 1,5 - 2,0 0,8 Styrene butadiene (SB) 1,5 - 2,0 0,8 Polyamide (PA) 3,0 - 4,0 2,0 Polybutylene terephthalate (PBT) 4,0 - 5,0 2,0 Polyethylene (highly branched) (PE-LD) 5,0 - 6,0 2,5 Polyethylene (weakly branched) (PE-HD) 4,0 - 5,0 2,0 Polyoxymethylene (POM) 4,0 - 5,0 2,0 Polypropylene (PP) 4,0 - 5,0 2,0

[0147] The deflection force can be calculated based on the geometric stiffness (cross-sectional design), the permissible strain, and the material stiffness (Young's modulus). If the resulting strains lie outside the proportionality range of the stress-strain curve, the so-called "secant modulus Es," the strain-dependent modulus of elasticity, should be used to determine the deflection force instead of the modulus of elasticity. Those skilled in the art know how to determine the strain-dependent modulus of elasticity from a stress-strain diagram for a given material, particularly for a plastic. When a specimen is subjected to a uniaxial tensile test, different stress-strain curves result depending on the type of plastic.While amorphous thermoplastics (polystyrene, PMMA) exhibit comparatively brittle mechanical material behavior, semi-crystalline thermoplastics (PE, PP) show a more ductile, tough behavior at room temperature. This is because amorphous thermoplastics are used at temperatures below their glass transition temperature, where they behave as hard and brittle. Semi-crystalline thermoplastics, on the other hand, are used below the melting point of their crystalline structures and above the glass transition temperature of their amorphous regions. While the crystalline regions provide stiffness, the amorphous regions contribute ductile-tough-elastic properties. Although plastics exhibit pronounced non-linear viscoelastic behavior and plastic strain when a certain load level is exceeded, a linear-elastic material model can still be sufficient for short-term loading.

[0148] To determine the edge fiber strain ε, the following equation (VII) can be applied to a slab or beam clamped at one end and approximately to a disk-shaped end cap: ε = 3 f h / 2 L 2 where f = deflection, L = length of the beam / plate, h = width or height of the plate clamped at one end. This results in a permissible deflection. f for a permissible strain ε zul by rearranging equation (VII): f = ε 2 L 2 / 3 h

[0149] Thus, for linear-(visco)elastic material models, the maximum permissible displacement can be approximated using equation (VIII) for a given allowable strain. This offers the possibility of estimating the allowable displacement when there is uncertainty in the knowledge of the correct material model, or, as in a linear-elastic case, when the Young's modulus is not known exactly, or when, for example, no stress-strain curve is available, since the strain is purely geometrically determined by equation (VII) and is independent of the Young's modulus. However, if a material model with irreversible effects is used (e.g., an elastoplastic material model), locally irreversible effects occur depending on the stress.

[0150] For example, a rotatable play ring made of plastic can be provided, wherein the width or height of the disc-shaped end caps is 1 mm and the difference between the outer radius of the disc-shaped end caps and the outer radius of the centered extensions is 10 mm. If the material from which the disc-shaped end caps are made has a permissible elongation for short-term loads of, for example, 4.0%, then, according to equation (VIII), a permissible deflection of 2.7 mm results, and if, according to equation (VIII), a permissible elongation of, for example, 2.0% is specified for long-term loads, then a permissible deflection of 1.3 mm results. Thus, for this example, it would be particularly preferred that the maximum deflection, preferably a deflection in the region of the distance B4 or B5 between the inner surfaces of the disc-shaped end caps and the freely rotatable flywheel, is less than or equal to 1.3 mm or a maximum of 2.7 mm.

[0151] With the approximations shown above, the person skilled in the art is able to estimate which technical proportions of the diameter, the distances, the width and which material are suitable to provide a rotatable game body of the present invention, so that the disc-shaped side caps (K1) and (K2) at the outer edge (R1) and (R2) are movable against the freely rotatable flywheel (S) in order to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps (K1) and (K2) at the outer edge (R1) and (R2) are movable against the freely rotatable flywheel (S) by an acting pressure force, in particular preferably reversibly, in order to fix the freely rotatable flywheel (S) in its position.

[0152] Therefore, the present invention preferably relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps are made of a plastic, preferably a thermoplastic, preferably a plastic selected from the group consisting of acrylonitrile butadiene styrene copolymer (ABS), cellulose acetate (CA), ionomers, polyamides (PA), polycarbonates (PC), polyetheretherketone (PEEK), polyethylene (PE), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyoxymethylene (POM), polypropylene (PP), polystyrene (PS), polyurethane thermoplastics, polyvinyl chloride (PVC), Teflon (PTFE) or polybutylene terephthalate (PBT), further preferably made of a plastic with a permissible elongation for short-term loads of at least 4.0% or with a permissible elongation for long-term loads of at least 2.0%, and particularly preferably made of polyoxymethylene.

[0153] Therefore, the present invention further preferably relates to a rotatable game body suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the disc-shaped side caps (K1) and (K2) have a diameter in the range of 0.5 to 1.2 times the outer diameter of the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are reversibly movable at their outer edges (R1) and (R2) against the freely rotatable flywheel (S) by an applied pressure force in order to fix the freely rotatable flywheel (S) in its position, wherein the freely rotatable flywheel (S) is cylindrical with its outer shell (M) and the outer cylindrical surface of the cylindrical flywheel (S) is flat and printable, wherein the wall thickness (W) of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is constant, wherein the outer radius of the cylindrical outer shell (M) of the freely rotatable flywheel (S) is constant, wherein the disc-shaped Side caps are made of a plastic material,preferably made of a thermoplastic polymer, preferably of a polymer selected from the group consisting of acrylonitrile butadiene styrene copolymer (ABS), cellulose acetate (CA), ionomers, polyamides (PA), polycarbonates (PC), polyetheretherketone (PEEK), polyethylene (PE), polyethylene terephthalate (PET), polymethyl methacrylate (PMMA), polyoxymethylene (POM), polypropylene (PP), polystyrene (PS), polyurethane thermoplastics, polyvinyl chloride (PVC), Teflon (PTFE) or polybutylene terephthalate (PBT), further preferably made of a polymer with a permissible elongation for short-term loads of at least 4.0% or with a permissible elongation for long-term loads of at least 2.0%, and in particular preferably made of polyoxymethylene. It is further preferred thatthat the disc-shaped side caps (K1) and (K2) at the outer edges (R1) and (R2) are reversibly movable against the freely rotatable flywheel (S) by an applied compressive force in the range of 5 N to 100 N in order to fix the freely rotatable flywheel (S) in its position. It is further preferred that the distance (B0) between the inner surfaces (I1, I2) of the opposing disc-shaped side caps (K1) and (K2) is greater than the width (B3) of the flywheel (S). It is further preferred that the width of the centered ball bearing (L) corresponds to 0.50 to 0.95 times the width of the flywheel (S). It is further preferred that the disc-shaped side caps (K1) and (K2) both have the same width. It is further preferred that the disc-shaped side caps (K1) and (K2) each have a width in the range of 0.1 to 0.2 times the width of the flywheel body (S). It is further preferred thatthat the flywheel body (S) or the outer shell (M) of the flywheel body (S), as well as the opposing disc-shaped side caps (K1 and K2), have one or more printable outer surface(s). It is further preferred that the first centered extension is suitable for engaging in the second centered recess of the centered ball bearing, and the second extension is suitable for engaging in the second centered recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap.

[0154] According to the invention, the disc-shaped side caps each have a centered extension on their respective inner side or surface. The first disc-shaped side cap has a first centered extension on its inner surface, and the opposite second disc-shaped side cap has a second centered extension on its inner surface. The first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second extension is suitable for engaging in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap.

[0155] In a preferred embodiment, the first centered extension of the first disc-shaped side cap can engage positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0156] In a preferred embodiment, the inner surfaces of the disc-shaped side caps have a distance B0 from each other. In this embodiment, it is preferred that the length B1 of the first centered extension of the first disc-shaped side cap is at most the length B0. In this embodiment, it is further preferred that the length B2 of the second centered extension of the second disc-shaped side cap is at most the length B0, and that the second centered extension of the second disc-shaped side cap can engage positively with the first centered extension of the first disc-shaped side cap, which is located in the second central recess of the centered ball bearing.It is further preferred that the first centered extension of the first disc-shaped side cap in this preferred embodiment has a central recess with a maximum depth B 0 and with a certain diameter, so that the second centered extension with an outer diameter corresponding to the diameter of the central recess of the first centered extension and a maximum length B 0 can engage positively up to the corresponding depth B 0 in the central recess of the first centered extension.

[0157] In a further preferred embodiment, the distance B0 preferably comprises the width B3 of the flywheel or the width B3 of the outer surface of the flywheel and the sum of the respective distances B4 and B5, respectively, between the flywheel and the corresponding inner surfaces of the respective disc-shaped end caps. In this embodiment, it is particularly preferred if the centered ball bearing has a width corresponding to the width of the outer surface of the flywheel. In other words, the total length B0 in this embodiment preferably comprises the sum of the distance B4 of the flywheel to the inner surface of the first disc-shaped end cap, the distance B5 of the flywheel to the inner surface of the second disc-shaped end cap, and the width B3 of the flywheel, and thus it is preferred that B0 = B3 + B4 + B5.To ensure that the second centered extension of the second disc-shaped side cap can engage exclusively in the first centered extension of the first disc-shaped side cap, which is located in the second central recess of the centered ball bearing, the first centered extension of the first disc-shaped side cap preferably has a length B1 that is at least the sum of the distance B4 between the inner surface of the first disc-shaped side cap and the flywheel body, and the width B3 of the flywheel body. Thus, in one embodiment, it is preferred that the length B1 of the first centered extension lies between (B3 + B4) and B0. It is particularly preferred if the first centered extension has a length of B1 = B3 + B4 and can therefore engage positively in the second central recess of the centered ball bearing to a depth T1 corresponding to the width B3 of the flywheel body.The first centered extension of the first disc-shaped side cap, for example with length B 1 = B 3 + B 4, preferably has an outer diameter in the length section B 3, i.e. the width of the flywheel, which corresponds to the diameter of the second central recess, so that this part of the first centered extension can engage positively in the second central recess of the centered ball bearing.

[0158] In some preferred embodiments, the width of the centered ball bearing can also be smaller or larger than the width of the outer surface of the flywheel. In some preferred embodiments, it is further preferred that the centered ball bearing is centered in the first central recess of the flywheel ring, meaning that if the centered ball bearing has, for example, a smaller width than the outer surface of the flywheel, the difference in width between the outer surface of the flywheel ring and the centered ball bearing is preferably the same on both sides. Preferably, the difference in width U is then the difference between half the width of the flywheel and half the width of the centered ball bearing.In these embodiments, it is preferred that the centered ball bearing has the same width difference to the outer surface of the flywheel on both sides, i.e., the width difference U₁ = U₂. If the width of the centered ball bearing is B₆, then in these embodiments it is preferred that B₃ = B₆ + U₁ + U₂, and further preferably B₃ = B₆ + 2U₁, if U₁ = U₂.

[0159] If, as in some preferred embodiments, the centered ball bearing has a smaller width B6 than the width B3 of the outer shell of the flywheel, and the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing, then in these embodiments it is preferably the case that the length B1 of the first centered extension is preferably between (B4 + B6 + U1) and B0, and that the first centered extension can preferably engage at least to a depth T1 in the second central recess of the ball bearing.which corresponds to the width B6 of the centered ball bearing. In some preferred embodiments, however, it may also be preferred that the first centered extension of the first side cap cannot engage in the second central recess of the ball bearing to a depth T1, which corresponds to the width B6 of the centered ball bearing, so that in these embodiments it is preferred, for example, in the case of B3 = B6, that the length B1 of the first centered extension of the first disc-shaped side cap is preferably in the range between the distance B4 and the sum of the distance B4 and the width B3 of the flywheel, and preferably that B4 < B1 < B3 + B4, or that in the case of B3 > B6, the length B1 of the first centered extension of the first disc-shaped side cap is preferably in the range between the sum of the distance B4 and the width difference U1 and the sum of the distance B4.the difference in width U1 and the width B6 of the centered ball bearing, and preferably B4 + U1 < B1 < B6 + B4 + U1, or, in the case of B3 < B6, the length B1 of the first centered extension of the first disc-shaped side cap is preferably smaller than the sum of the distance B4 and the width B6 of the centered ball bearing, and preferably B1 < B6 + B4. In a further embodiment, for example, the width B6 of the centered ball bearing can correspond to the distance B0 of the opposing disc-shaped side caps, so that preferably B1 < B6 + B4. In a further preferred embodiment, the width B6 of the centered ball bearing can preferably lie in the range between the distance B0 and the width B3 of the outer shell of the flywheel. In these embodiments, the length B1 of the first centered extension is at least as long assuch as the distance B4 between the inner surface of the first disc-shaped side cap and the centered ball bearing. In some further embodiments, the same applies to the second centered extension of the second disc-shaped side cap as described for the first centered extension.

[0160] In some preferred embodiments, the centered ball bearing can also preferably have a greater width than the width of the outer surface of the flywheel. Preferably, the difference in width U between the width of the centered ball bearing and the width of the flywheel on each side is then the difference between half the width of the flywheel and half the width of the centered ball bearing. In these embodiments, it is then preferred that the centered ball bearing has the same difference in width to the outer surface of the flywheel on both sides, i.e., the difference in width U₁ = U₂. If the width of the centered ball bearing is B₆, then in these embodiments it is preferred that B₆ = B₃ + U₁ + U₂, and further preferably B₆ = B₃ + 2U₁, when U₁ = U₂.

[0161] If, as in some preferred embodiments, the centered ball bearing has a greater width B 6 than the width B 3 of the outer shell of the flywheel body, and the first centered extension of the first disc-shaped side cap can engage positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing, then in these embodiments it is preferably the case that the first centered extension can engage to a depth T 1 in the second central recess of the ball bearing, which results from the width B 6 of the centered ball bearing and is therefore preferably T 1 = B 6.In the preferred embodiments described above, the first centered extension of the first disc-shaped side cap preferably has a central recess into which the second centered extension of the second disc-shaped side cap can engage in a form-fitting manner. The central recess of the first centered extension has a depth T2 into which the second centered extension can engage to a maximum depth T2. For the embodiments described above, it is preferably the case that the central recess of the first centered extension has a maximum depth T2 that corresponds to the length B1 of the first centered extension of the first disc-shaped side cap.

[0162] To enable the second centered extension to engage positively with the first centered extension, the first centered extension is, for example, a hollow cylinder with a circular central recess of a specific diameter. Accordingly, the second centered extension preferably has an outer diameter that corresponds to the diameter of the central recess of the first centered extension, allowing it to engage positively with the first centered extension. The central recess of the first extension of the first disc-shaped side cap can have varying depths, and the second centered extension of the second disc-shaped side cap can have varying lengths.In some embodiments, it is preferred that the depth T 2 of the central recess of the first centered extension of the first disc-shaped side cap preferably corresponds to the width B 3 of the flywheel body, if, as in some embodiments, preferably, the width B 6 of the centered ball bearing corresponds to the width B 3 of the outer shell of the flywheel body and the length B 1 of the first centered extension preferably is B 1 = B 3 + B 4, so that accordingly the second centered extension of the second disc-shaped side cap can engage in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing up to a depth T 3 which corresponds to the width B 3 of the flywheel body.Particularly preferred is the central recess of the first centered extension of the first disc-shaped side cap having a defined depth T 2 and the second centered extension of the second disc-shaped side cap having a defined length B 2, such that when the first centered extension of the first disc-shaped side cap is positively engaged in the second centered recess of the ball bearing and the second centered extension of the second disc-shaped side cap engages positively in the first centered extension of the first disc-shaped side cap located in the second centered recess of the centered ball bearing, the distance between the inner surfaces of the opposing side caps is B 0 with B 0 = B 3 + B 4 + B 5.In a preferred embodiment, a flywheel with a width B3 is provided, wherein the flywheel has a distance B4 to the inner surface of the first disc-shaped side cap and the flywheel has a distance B5 to the inner surface of the second disc-shaped side cap. Preferably, in this exemplary embodiment, the first centered extension has a length B1 = B3 + B4, which is composed of the width B3 of the flywheel and the distance B4 of the flywheel to the inner surface of the first disc-shaped side cap. Preferably, in this exemplary embodiment, the first centered extension can engage in the second central recess of the centered ball bearing to a depth T1 corresponding to the width B3 of the flywheel.In this example, the first centered extension further comprises a central recess with a depth T2, into which the second centered extension can engage in a form-fitting manner. In this exemplary embodiment, the depth T2 of the central recess of the first centered extension is preferably equal to the depth T3 to which the second centered extension can engage in the central recess of the first centered extension, which also preferably corresponds to the width B3 of the flywheel body.In this preferred exemplary embodiment, the second centered extension has a length B2 that corresponds to the width B3 of the flywheel, so that the second centered extension can preferably engage positively in the first centered extension of the first disc-shaped side cap, which is located in the second central recess of the centered ball bearing, up to a depth T3 that corresponds to the width B3 of the flywheel. The flywheel in this exemplary embodiment also has a distance B5 from the inner surface of the second disc-shaped side cap. Thus, in this exemplary embodiment, the length B2 of the second centered extension preferably comprises the depth T3, which in this example corresponds to the width B3 of the flywheel, and the distance B5, and is therefore B2 = B3 + B5.It is further preferred that, after the second centered extension of the second disc-shaped side cap engages to a depth T3 in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing, the distance between the inner surfaces of the two opposing disc-shaped side caps is B0, and preferably B0 = B3 + B4 + B5. This preferably means that the sum of the length B1 of the first centered extension of the first disc-shaped side cap and the difference between the length B2 of the second centered extension of the second disc-shaped side cap and the depth T3 with which the second centered extension engages in the central recess of the first centered extension preferably corresponds to B0, and preferably furthermore B0 = B3 + B4 + B5 = B1 + (B2 - T3) = B1 + B5.

[0163] The embodiment described above represents only an exemplary embodiment. The first centered extension of the first disc-shaped side cap can, for example, also have a length B1 that is longer than the previously described length of B1 = B3 + B4. The central recess of the first centered extension of the first disc-shaped side cap can also have depths other than the depth T1, which corresponds to the width B3 of the flywheel. In a preferred embodiment, the first centered extension can have a central recess with, for example, a depth T2 that corresponds to the length B1 of the first centered extension.In this preferred embodiment, the second centered extension has a length B 2 of at least the depth T 3, which corresponds to the length B 1 of the first centered extension, so that the second centered extension of the second disc-shaped side cap can engage positively to a depth T 3 = B 1 in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.The length of the second centered extension, which can engage in the central recess of the first centered extension, preferably comprises length B5, which corresponds to the distance B5 of the flywheel body to the inner surface of the second disc-shaped side cap, and the portion of the second centered extension that can be positively engaged in the central recess of the first centered extension of the first disc-shaped side cap to a depth T3. In a preferred embodiment, the depth T2 of the central recess of the first centered extension of the first disc-shaped side cap can also be deeper than the length T3 of the portion of the second centered extension that can be positively engaged in the central recess of the first centered extension of the first disc-shaped side cap to a depth T3.The depth T2 of the central recess of the first centered extension particularly preferably has at least the length T3 of the portion of the second centered extension that can be positively engaged in the central recess of the first centered extension up to a depth T3. In other words, it is particularly preferred if the portion of the second centered extension that can engage in the central recess of the first centered extension engages completely along the length T3 of this portion of the second centered extension, so that the distance between the opposing disc-shaped end caps B0 = B3 + B4 + B5 preferably applies.

[0164] In some embodiments, the width of the centered ball bearing, as described above, can preferably be equal to, less than, or greater than the width of the outer surface of the flywheel. In some further embodiments, it is more preferably that the length B1 of the first centered extension is preferably B4 < B1 < B3 + B4 in the case of B3 = B6, more preferably B4 < B1 < B6 + B4 + U1 in the case of B3 > B6, and more preferably B4 < B1 < B6 + B4 in the case of B3 < B6. In these embodiments, it is further preferred that the first centered extension of the first disc-shaped side cap has a central recess with a depth T2, wherein the depth T2 preferably corresponds at most to the length B1 of the first centered extension.In these embodiments, the second centered extension of the second disc-shaped side cap preferably has a maximum length B2, which is composed of the depth T3 = T2 and the difference B7 between the distance B0 and the length B1 of the first extension, and thus the length B2 of the second centered extension is preferably a maximum of B2 = T2 + B7. In these embodiments, it is further preferred that the second centered extension has an outer diameter at length T3 that corresponds to the diameter of the central recess of the first centered extension, so that this part of the second centered extension can engage positively in the central recess of the first centered extension.In some preferred embodiments, the portion of the second centered extension with length B 7 can have the same outer diameter as the portion with length T 3; in some further embodiments, the portion of the second centered extension with length B 7 can also have different outer diameters. In these embodiments, it is particularly preferred if the portion of the second centered extension with length B 7 abuts the inner surface of the second centered extension.Since, in the previously described preferred embodiments, it is preferred that the second centered extension of the second disc-shaped side cap engages positively in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing, and preferably does not engage positively in the second central recess of the centered ball bearing, it is particularly preferred that the outer diameter of the part of the second centered extension with length B 7 is smaller than the diameter of the second central recess of the centered ball bearing.

[0165] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing and the second centered extension of the second disc-shaped side cap engages positively in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0166] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing and the second centered extension of the second disc-shaped side cap engages positively in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0167] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the ball bearing to a depth (T 1) corresponding to the width of the flywheel, and the second centered extension of the second disc-shaped side cap engages positively in the first centered extension of the first side cap located in the second central recess of the ball bearing to a depth (T 3) corresponding to the width of the flywheel.

[0168] The centered extensions of the two opposing side caps described above in the exemplary embodiments can also have different external shapes. For example, the first centered extension of the first disc-shaped side cap or the second centered extension of the second disc-shaped side cap can be cylindrical or have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape, wherein the triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape preferably takes the form of a regular polygon with 5 to 10 sides.further preferably has 6 to 8 corners. Furthermore, the central recess of the first centered extension of the first disc-shaped side cap can preferably have different shapes. In a preferred embodiment, the central recess of the first centered extension of the first disc-shaped side cap can be cylindrical or have a triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape, wherein the triangular, square, pentagonal, hexagonal, heptagonal, octagonal, or polygonal shape preferably has the form of a regular polygon with 5 to 10 corners, further preferably with 6 to 8 corners. It is preferred thatif the outer shape of the first centered extension of the first disc-shaped side cap corresponds to the shape of the second centered recess of the ball bearing. In an exemplary embodiment, the second centered recess of the ball bearing can, for example, be cylindrical. In this exemplary embodiment, it is therefore preferred that the outer shape of the first centered extension of the first disc-shaped side cap is also cylindrical. The exemplary cylindrical first centered extension of the first disc-shaped side cap further preferably has an outer diameter that corresponds to the diameter of the cylindrical second centered recess of the centered ball bearing.so that the cylindrical first centered extension can be positively engaged in the cylindrical second central recess of the centered ball bearing. In a further preferred embodiment, the first centered extension has, for example, a cylindrical central recess with a depth T 2, wherein it is then preferred that the second centered extension of the second disc-shaped side cap is also cylindrical, so that it can be positively engaged in the central recess of the first centered extension to a depth T 3, and wherein it preferably has an outer diameter which corresponds to the diameter of the central recess of the first centered extension. In further embodiments, the first centered extension of the first disc-shaped side cap, the second centered extension of the second disc-shaped side cap,as well as the central recess of the first centered extension, which may have different shapes. In a preferred embodiment, the second central recess of the ball bearing may, for example, be cylindrical, and the first centered extension of the first disc-shaped side caps may preferably have the shape of a regular hexagon, wherein the outer diameter of the first centered extension, i.e., twice the radius of the circle passing through the vertices of the regular hexagon, preferably corresponds to the diameter of the second central recess of the centered ball bearing, so that a positive engagement of the first centered extension of the first disc-shaped side cap in the second central recess of the centered ball bearing is possible. Any conceivable combination of the different outer shapes of the first centered extension of the first disc-shaped side cap,The second centered extension of the second disc-shaped side cap, as well as the central recess of the first centered side cap, can be considered according to the invention, wherein preferably the outer diameter of the first centered extension of the first disc-shaped side cap corresponds to the diameter of the second central recess of the centered ball bearing, so that a positive engagement of the first centered extension in the second central recess of the centered ball bearing is possible, and wherein preferably the outer diameter of the second centered extension of the second disc-shaped side cap corresponds to the diameter of the central recess of the first centered extension.so that a positive engagement of the second centered extension of the second disc-shaped side cap into the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing is possible.

[0169] In a preferred embodiment, the first centered extension of the first disc-shaped side cap can engage positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the second central recess of the centered ball bearing as well as in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0170] In some preferred embodiments, the inner surfaces of the disc-shaped side caps have a distance B0 from each other and preferably an outer shell with a width B3 and a centered ball bearing with a width B6. In a preferred embodiment, the width B3 of the outer shell of the flywheel corresponds to the width B6 of the centered ball bearing, and it is further preferred that the length B1 of the first centered extension of the first disc-shaped side cap is less than the sum of the length of the distance B4 of the flywheel to the inner surface of the first disc-shaped side cap and the width B3 of the flywheel, and thus preferably B1 < B3 + B4. It is further preferred that the length B1 of the first centered extension of the first disc-shaped side cap is greater than the distance B4 of the flywheel to the inner surface of the first disc-shaped side cap, and thus preferably B1 > B4.It is further preferred that B4 < B1 < B3 + B4. It is further preferred that the first centered extension of the first disc-shaped side cap does not engage the second central recess of the centered ball bearing along its entire length B1. It is preferred that the first centered extension can be positively engaged in the second central recess of the ball bearing to a depth T1, which is composed of the difference D1 between the length B1 of the first centered extension and the sum of the width B3 of the flywheel and the distance B4 of the flywheel to the inner surface of the first disc-shaped side cap, and thus preferably the difference D = (B3 + B4) - B1, which is subtracted from the width B3 of the flywheel.It follows that the depth T1 is preferably T1 = B3 - D1, and thus the first centered extension of the first disc-shaped side cap preferably engages the second central recess of the centered ball bearing to a depth T1 = B3 - D1. The first centered extension preferably also has a central recess with a depth T2. In a preferred embodiment, the depth T2 corresponds at most to the length B1 of the first centered extension. However, the depth T2 can also be less than the length B1 of the first centered extension, and the length of the depth T2 is preferably greater than zero and lies between zero and the length B1 of the first centered extension. In a preferred embodiment, the depth T2 of the central recess of the first centered extension corresponds to half the width B3 of the flywheel, and thus, in this embodiment, it is preferred that T2 = ½ B3.

[0171] In a preferred embodiment, the length B2 of the second side cap is composed of a portion that can be positively engaged in the central recess of the first centered extension of the first disc-shaped side cap to a depth T3, and a portion with length B7 that can positively engage in the second central recess of the centered ball bearing to a depth T4. The portion with length B7 of the second centered extension preferably comprises the distance B5 of the flywheel ring to the inner surface of the second disc-shaped side cap and the depth T4, such that B7 preferably = T4 + B5. This is particularly preferred in embodiments in which the width B3 of the outer surface of the flywheel corresponds to the width B6 of the centered ball bearing.In these embodiments, it is preferred that the length B7 of the second centered extension of the second disc-shaped side cap is shorter than the sum of the length of the distance B5 between the flywheel and the inner surface of the second disc-shaped side cap and the width B3 of the flywheel, and thus preferably B7 < B3 + B5. It is further preferred that the portion with length B7 of the first centered extension of the first disc-shaped side cap is longer than the distance B5 between the flywheel and the inner surface of the second disc-shaped side cap, and thus preferably B7 > B5. Accordingly, it is further preferred that B5 < B7 < B3 + B5. It is also further preferred that the second centered extension of the second disc-shaped side cap does not engage in the second central recess of the centered ball bearing along its entire length B7.Preferably, the second centered extension can be positively engaged in the second central recess of the ball bearing to a depth T4. This depth is calculated as the difference D2 between the length B7 of the second centered extension and the sum of the width B3 of the flywheel and the distance B5 between the flywheel and the inner surface of the second disc-shaped side cap. Therefore, the difference D2 = (B3 + B5) - B7 is preferably subtracted from the width B3 of the flywheel. Consequently, the depth T4 is preferably T4 = B3 - D2, and thus the second centered extension of the second disc-shaped side cap preferably engages in the second central recess of the centered ball bearing to a depth T4 = B3 - D2. In a preferred embodiment, the sum of the differences D 1 and D 2 is preferably B 3, such that B 3 = D 1 + D 2 or B 3 = T 1 + T 4.In a further preferred embodiment, D1 = D2, and thus D1 = D2 = ½ B3. Therefore, it is preferred that the second centered extension of the second disc-shaped side cap can engage positively in the second central recess of the centered ball bearing to a depth T4, which corresponds to half the width of the flywheel. In a further preferred embodiment, the sum of the length B1 of the first centered extension and the length B7 of the second centered extension is preferably B0, and thus it is preferred that B0 = B3 + B4 + B5 = B1 + (B2 - T4) = B1 + B7. In another preferred embodiment, the sum of the differences D 1 and D 2 is preferably B 3, such that B 3 = D 1 + D 2 or B 3 = T 1 + T 4, where, for example, D 1 is not equal to D 2 or T 1 is not equal to T 4.In an exemplary embodiment, the first centered extension of the first disc-shaped side cap can, for example, be positively engaged in the second central recess of the centered ball bearing to a depth T1 that is greater than half the width of the flywheel. In this exemplary embodiment, the second centered extension of the second disc-shaped side cap can preferably engage in the second central recess of the centered ball bearing to a depth T4, wherein the depth T4 is preferably the difference between the width B3 of the flywheel and the depth T1 with which the first centered extension engages in the second central recess of the centered ball bearing, such that preferably T4 = B3 - T1 = D1.In a further preferred embodiment, the sum of the depths T1 and T4 can also be smaller, and the corresponding sum of the differences D1 = D2 can also be larger than B3, such that preferably T1 + T4 < B3 < D1 + D2. In a preferred exemplary embodiment, the first centered extension of the first disc-shaped side cap engages, for example, to a depth T1 that is less than half the width of the flywheel in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap engages, for example, to a depth T4 that is also less than half the width of the flywheel in the second central recess of the centered ball bearing.In this exemplary embodiment, the two centered extensions of the disc-shaped side caps, each embedded in the second central recess of the centered ball bearing on one side of the flywheel, have a gap or distance between them with a difference D3. The difference D3 preferably comprises the difference in the width B3 of the flywheel and the sum of the depths T1 and T4, such that preferably D3 = B3 - (T1 + T4) and more preferably B3 = D3 + T1 + T4.In a further preferred embodiment, the first centered extension of the first disc-shaped side cap engages, for example, to a depth T1 which is greater than half the width of the flywheel into the second central recess of the centered ball bearing, wherein, as described above, it is preferred that the second centered extension of the second disc-shaped side cap can engage into the second central recess of the centered ball bearing to a maximum depth T4, wherein the depth T4 can have a maximum length equal to the difference D1, since preferably T1 = B3 - D1 and thus B3 = T1 + D1, and further preferably B3 = T1 + T4.In a preferred embodiment, the second centered extension can also engage, for example, to a depth T4, which is less than the difference D1, in the second centered recess of the centered ball bearing, preferably with B3 = T1 + T4 + D3. Any combination of different lengths B1 of the first centered extension and different lengths B7 of the second centered extension can be selected according to the invention, preferably with the sum of the length B1 of the first centered extension and the portion of the length B7 of the second centered extension being at most B0 = B3 + B4 + B5 = B1 + (B2 - T4) = B1 + B7, and preferably B4 < B1 < B3 + B4 and B5 < B7 < B3 + B5.

[0172] In some embodiments, it may also be preferred if the width B6 of the centered ball bearing is smaller or larger than the width B3 of the flywheel body or the outer shell of the flywheel body. In some preferred embodiments, the width B6 of the centered ball bearing is smaller than the width B3 of the flywheel body or the outer shell of the flywheel body. In these preferred embodiments, wherein the centered ball bearing has a smaller width B6 than the width B3 of the outer shell of the flywheel body, and the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the second central recess of the centered ball bearing as well as in the first centered extension of the first disc-shaped side cap, it is preferred thatthat the length B 1 of the first centered extension preferably lies between the distance B 4 + U 1 and the sum of B 4 + B 6 + U 1, wherein U 1 is the first width difference between the width of the outer shell of the flywheel body and the width of the centered ball bearing, and wherein the first centered extension preferably engages at least to a depth T 1 in the second central recess of the ball bearing, which is smaller than the width B 6 of the centered ball bearing, so that in these embodiments it is preferably the case that B 4 + U 1 < B 1 < B 6 + B 4 + U 1 and T 1 < B 6. Furthermore, in these embodiments it is preferred if the length B 7 of the part of the second extension, which can engage positively in the second central recess to a depth T 4 and which is preferably smaller than the width B 6 of the centered ball bearing, is preferably between the distance B 5 + U 2 and the sum of B 5 + B 6 + U 2,where U 2 is the second width difference between the width B 3 of the outer shell of the flywheel and the width B 6 of the centered ball bearing.

[0173] In some preferred embodiments, the width B6 of the centered ball bearing is greater than the width B3 of the outer shell of the flywheel. In these preferred embodiments, wherein the centered ball bearing has a greater width B6 than the width B3 of the outer shell of the flywheel, and the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the second central recess of the centered ball bearing as well as in the first centered extension of the first disc-shaped side cap, it is preferred that the length B1 of the first centered extension, or B3 of the second centered extension, is greater than the width B3 of the outer shell of the flywheel.The length B7 of the portion of the second centered extension that rests against the inner surface is preferably smaller than the distance B0 between the opposing side caps, and preferably B1 + B7 = B0. In these embodiments, it is further preferred that the first centered extension, with a depth T1 that corresponds at most to the length B1, and the second centered extension, with a depth T4 that corresponds at most to the length B2, can be positively engaged in the second central recess of the centered ball bearing. In the embodiments in which T1 = B1 and T4 = B2 preferably apply, it is preferred that the width B6 of the centered ball bearing corresponds to the distance B0 between the opposing disc-shaped side caps.In these embodiments, it is particularly preferred that, for example, only the inner ring of the centered ball bearing has the width B 0, wherein the outer ring of the centered ball bearing preferably has a smaller width than B 0, so that the free rotation of the flywheel cannot be restricted or prevented.

[0174] In a further preferred embodiment, the length B 2 of the second centered extension of the second disc-shaped side cap is further composed of a part with length T 3, which can be positively engaged in the central recess of the first centered extension of the first disc-shaped side cap to a depth T 3, and of a part with length B 7, which can positively engage in the second central recess of the centered ball bearing to a depth T 4, and is thus B 2 = T 3 + B 7.The part with length T 3, which can be positively engaged in the central recess of the first centered extension of the first disc-shaped side cap up to a depth T 3, preferably has an outer diameter which corresponds to the diameter of the central recess of the first centered extension, so that this part with length T 3 of the second centered extension can be positively engaged in the central recess of the first centered extension.

[0175] In a preferred embodiment, the first centered extension of the first disc-shaped side cap has, for example, a length B1 such that it can engage positively in the second central recess of the centered ball bearing to a depth T1, which corresponds to half the width of the flywheel. Furthermore, the second centered extension of the second disc-shaped side cap has, for example, a portion with a length B7 as described above, which can engage positively in the second central recess of the centered ball bearing on the opposite side of the flywheel to a depth T4, which corresponds to half the width of the flywheel. Thus, both the first centered extension and the second centered extension engage in the second central recess of the centered ball bearing to a depth T, which corresponds to half the width of the flywheel.As described above, in a preferred embodiment, the first centered extension of the first disc-shaped side cap can have a central recess with a depth T2 that is at most equal to the length B1 of the first centered extension. In a preferred embodiment, the second centered extension of the second disc-shaped side cap has a portion of length T3 that can engage positively in the central recess of the first centered extension, wherein the maximum length T3 of this portion of the second centered extension preferably corresponds at most to the depth T2 of the central recess of the first centered extension. The length T3 of this portion of the second centered extension can also be less than the length of the depth T2 of the central recess of the first centered extension.As described above, in some preferred embodiments, the first centered extension of the first disc-shaped side cap can engage, for example, to a depth T1, which is less than half the width of the flywheel, in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage, for example, to a depth T4, which is also less than half the width of the flywheel, in the second central recess of the centered ball bearing. In these preferred embodiments, the centered extensions engaged in the second central recess of the centered ball bearing have a difference D3 between them. In this embodiment, the first centered extension of the first disc-shaped side cap has a central recess with a depth T2 that is at most equal to the length B1 of the first centered extension.The second centered extension has a portion with length T3, which can be positively engaged in the central recess of the first centered extension of the first disc-shaped side cap to a depth T3. In this exemplary embodiment, so that the portion with length T3 can engage in the central recess of the first centered extension to a depth T3, the length B2 of the second centered extension comprises a portion with length T3, the difference D3, and a portion with length B7, such that the length B2 of the second centered extension preferably has a length B2 = T3 + D3 + B7.Any combination of different lengths of the respective extensions, as already described above for other preferred embodiments, can be selected according to the invention, wherein the depth T2 of the central recess of the first centered extension and of the portion of the second centered extension with length T3 can also be selected variably. Preferably, B0 = B3 + B4 + B5 = B1 + (B2 - T4) = B1 + B7, where B4 < B1 < B3 + B4 and B5 < B7 < B3 + B5, and B3 = B6.

[0176] In a particularly preferred embodiment, the first centered extension of the first disc-shaped side cap preferably engages positively to a depth T 1, which corresponds to half the width of the flywheel, in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap preferably engages positively to a depth T 4, which corresponds to half the width of the flywheel, in the second central recess of the centered ball bearing, as well as in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0177] In some of the previously described preferred embodiments, the first centered extension of the first disc-shaped side cap, the second centered extension of the second disc-shaped side cap, as well as the central recess of the first centered extension of the first disc-shaped side cap, may preferably have different shapes, which may be as already described above for the centered extensions and the central recess of the first centered extension.

[0178] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing and the second centered extension of the second disc-shaped side cap engages positively in the second central recess of the centered ball bearing as well as in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0179] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position, wherein the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing and the second centered extension of the second disc-shaped side cap engages positively in the second central recess of the centered ball bearing as well as in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0180] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension of the first disc-shaped side cap engages positively to a depth T corresponding to half the width of the flywheel body in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap engages positively to a depth T corresponding to half the width of the flywheel body in the second central recess of the centered ball bearing, as well as engaging in the first centered extension of the first disc-shaped side cap located in the second central recess of the centered ball bearing.

[0181] In a further preferred embodiment, the first centered extension is suitable for engaging in the second centered recess of the centered ball bearing, and the second centered extension is suitable for engaging in the second centered recess of the centered ball bearing. In a particularly preferred embodiment, the centered extensions do not interlock. It is preferred that the first centered extension engages in the second centered recess on the first side of the centered ball bearing and the second centered extension engages in the second centered recess on the second side of the centered ball bearing.

[0182] In a preferred embodiment, the first and / or the second centered extension has a defined length B, which corresponds to half the distance between the first and the second disc-shaped side caps. If the distance between the inner surfaces of the first and the second disc-shaped side caps is B₀, the centered extensions therefore preferably have a length of ½ B₀ = B. Half the distance B for the first centered extension of the first disc-shaped side cap is the length B₁, and half the distance B for the second centered extension of the second disc-shaped side cap is the length B₂. In a preferred embodiment, the length B₁ of the first extension of the first disc-shaped side cap corresponds to the length B₂ of the second extension of the second disc-shaped side cap, and thus B₁ = B₂ and B₁ + B₂ = B₀ are preferably equal.It is particularly preferred if the first centered extension of the first disc-shaped side cap and the second centered extension of the second disc-shaped side cap have a total length B0 that is composed of the width of the outer surface of the flywheel B3 and the sum of the respective distances between the flywheel and the corresponding inner surface of the disc-shaped side cap B4 and B5, respectively. In other words, the total length B0, i.e., the sum of the length B1 of the first centered extension and the length B2 of the second centered extension, is preferably composed of the sum of the distance B4 of the flywheel to the inner surface of the first disc-shaped side cap, the distance B5 of the flywheel to the inner surface of the second disc-shaped side cap, and the width B3 of the flywheel. Thus, it is preferred that B0 = B1 + B2 = B3 + B4 + B5.It is preferred that the length B1 of the first centered extension and the length B2 of the second centered extension are equal, and preferably that the distance B4 between the flywheel and the first disc-shaped side cap and the distance B5 between the flywheel and the second disc-shaped side cap are equal, so that B0 = 2B1 = B3 + 2B4 when B1 = B2 and B4 = B5. In a preferred embodiment, the lengths B1 and B2 of the centered extensions of the opposing side caps may preferably be of different lengths.Preferably, the first centered extension of the first disc-shaped side cap has a length at least equal to the distance B4 of the flywheel body to the inner surface of the first disc-shaped side cap, and preferably, the second centered extension of the second disc-shaped side cap has a length at least equal to the distance B5 of the flywheel body to the inner surface of the second disc-shaped side cap, such that B4 < B1 and B5 < B2. It is further preferred that the length B1 of the first centered extension is less than the sum of the length of the distance B4 and the width B3 of the flywheel body, and that the length B2 of the second centered extension is less than the sum of the length of the distance B5 and the width B3 of the flywheel body, such that B1 < B4 + B3 and B2 < B5 + B3. Therefore, it is particularly preferred that B 4 < B 1 < B 4 + B 3 and B 5 < B 2 < B 5 + B 3.

[0183] In some preferred embodiments, the first centered extension of the first disc-shaped side cap can engage, for example, to a depth T1, which is less than half the width of the flywheel, in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage, for example, to a depth T4, which is also less than half the width of the flywheel, in the second central recess of the centered ball bearing. In these preferred embodiments, the centered extensions engaged in the second central recess of the centered ball bearing have a difference D3 between them, wherein B3 = T1 + T4 + D3 and wherein B0 = B1 + B2 = B3 + B4 + B5 = T1 + T4 + D3 + B4 + B5.

[0184] In a particularly preferred embodiment, the first centered extension of the first disc-shaped side cap preferably engages in a form-fitting manner to a depth T 1, which corresponds to half the width of the flywheel, in the second central recess of the centered ball bearing, and the second centered extension preferably engages in the second central recess of the centered ball bearing to a depth T 4, which corresponds to half the width of the flywheel, without the centered extensions interlocking.

[0185] In some embodiments, it may also be preferred that the width B6 of the centered ball bearing is smaller or larger than the width B3 of the flywheel or the outer shell of the flywheel. In some preferred embodiments, the width B6 of the centered ball bearing is smaller than the width B3 of the flywheel or the outer shell of the flywheel.In these preferred embodiments, wherein the centered ball bearing has a smaller width B 6 than the width B 3 of the outer shell of the flywheel body, and the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the second central recess of the centered ball bearing without the centered extensions interlocking, it is preferred that the length B 1 of the first centered extension corresponds at least to the sum of the distance B 4 and the width difference U 1 and at most to the aforementioned sum and additionally to the width B 6 of the centered ball bearing, and thus it is preferred that B 4 + U 1 < B 1 < B 6 + B 4 + U 1.Furthermore, it is preferred if, in these embodiments, the length B2 of the second centered extension corresponds at least to the sum of the distance B5 and the width difference U2, and at most to the aforementioned sum plus the width B6 of the centered ball bearing, and thus preferably that B5 + U2 < B2 < B6 + B5 + U2. In these embodiments, it is further particularly preferred if B0 = B1 + B2 = B3 + B4 + B5 = U1 + U2 + B6 + B4 + B5.

[0186] In some preferred embodiments, the width B 6 of the centered ball bearing is larger than the width B 3 of the outer shell of the flywheel.In these preferred embodiments, wherein the centered ball bearing has a greater width B 6 than the width B 3 of the outer shell of the flywheel body, and the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing, and the second centered extension of the second disc-shaped side cap can engage positively in the second central recess of the centered ball bearing without the centered extensions interlocking, it is preferred that the length B 1 of the first centered extension and the length B 2 of the second centered extension are preferably at least as large as the difference between half the distance B 0 between the two opposing disc caps and half the width of the centered ball bearing, particularly preferred if the centered ball bearing has the same distance to each of the two disc-shaped side caps.In these embodiments, it is particularly preferred that, for example, only the inner ring of the centered ball bearing has the width B 0, wherein the outer ring of the centered ball bearing preferably has a smaller width than B 0, so that the free rotation of the flywheel cannot be restricted or prevented.

[0187] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension of the first disc-shaped side cap engages positively in the second central recess of the centered ball bearing and the second centered extension also engages in the second central recess of the centered ball bearing, without the centered extensions interlocking.

[0188] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotating flywheel (S) in its position, wherein the first centered extension of the first disc-shaped side cap engages positively in the second centered recess of the centered ball bearing and the second centered extension also engages in the second centered recess of the centered ball bearing, without the centered extensions interlocking.

[0189] In other words, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension being suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension being suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension of the first disc-shaped side cap engages positively to a depth T corresponding to half the width of the flywheel body in the second central recess of the centered ball bearing and the second centered extension engages in the second central recess of the centered ball bearing to a depth T corresponding to half the width of the flywheel body, without the centered extensions interlocking.

[0190] In a preferred embodiment, the first and second disc-shaped side caps have a defined distance B4 and B5, respectively, from the flywheel, so that the flywheel can rotate freely and is not slowed down by the side caps during rotation. In a preferred embodiment, the flywheel has a defined distance B4 from the inner surface of the first disc-shaped side cap, for example, by having the first centered extension with two sections of different diameters in the form of a two-stage extension, and the part of the first centered extension that rests against the inner surface, i.e., the first stage of the two-stage extension, has a diameter that is larger than the diameter of the second central recess of the centered ball bearing and smaller than the diameter of the first central recess of the flywheel, and has a width thatwhich corresponds to at least half the width of the flywheel minus half the width of the centered ball bearing, or more preferably corresponds to at least B 4, and the second area of ​​the first centered extension, which abuts the first area of ​​the first centered extension, i.e., the second stage of the two-stage extension, has a diameter that corresponds to the diameter of the second central recess of the centered ball bearing.

[0191] In a preferred embodiment, the flywheel body has a defined distance B 5 to the inner surface of the second disc-shaped side cap, in that, for example, the second centered extension has two areas of different diameters in the form of a two-stage extension, and the part of the second centered extension that abuts the inner surface, i.e., the first stage of the two-stage extension, has a diameter that is larger than the diameter of the second central recess of the centered ball bearing and smaller than the diameter of the first central recess of the flywheel body, and has a width that corresponds to at least half the width of the flywheel body minus half the width of the centered ball bearing, and further preferably corresponds to at least B 5, and the second area of ​​the second centered extension, which abuts the first area of ​​the second centered extension, i.e., the second stage of the two-stage extension,has a diameter that corresponds to the diameter of the second central recess of the centered ball bearing.

[0192] In other words, the centered extensions each have an outer diameter on the inside of one of the disc-shaped side caps, preferably along the length of the distance between the inner surface of the disc-shaped side cap and the flywheel (B4 or B5), which is larger than the diameter of the second central recess of the centered ball bearing and smaller than the diameter of the first central recess of the flywheel. Furthermore, the centered extensions each have an outer diameter on the inside of one of the disc-shaped side caps, along the length of the distance between the inner surface of the disc-shaped side cap and the flywheel (B4 or B5), in the range between the diameter of the second central recess of the centered ball bearing and the diameter of the first central recess of the flywheel.Particularly preferably, the centered extensions each have an outer diameter on the inside of one of the disc-shaped side caps, preferably in the length of the distance between the inner surface of the disc-shaped side cap and the flywheel (B 4 or B 5), which is smaller than the diameter of the first central recess, so that the outer shell of this part of the centered extensions, which rests against the inner surface, cannot be slowed down by the respective parts resting against the inner surface, i.e., the two first stages of the two-stage extension, during rotation or while it is rotating freely.

[0193] In some preferred embodiments, however, the flywheel can also have a centered ball bearing which has a smaller width B6 than the width B3 of the outer shell of the flywheel. In these embodiments, the centered extensions of the disc-shaped side caps have a length equal to the distance between the inner surfaces of the disc-shaped side caps and the flywheel (B4 or B5) and additionally equal to the distance resulting from the difference in width between the centered ball bearing and the flywheel (U1 or U2).The sum of half the width of the flywheel body minus half the width of the centered ball bearing results in an outer diameter which is preferably larger than the diameter of the second central recess of the centered ball bearing and preferably smaller than the diameter of the first central recess of the flywheel body, and further preferably has an outer diameter in the range between the diameter of the second central recess of the centered ball bearing and the diameter of the first central recess of the flywheel body.

[0194] If the centered ball bearing has a smaller width B6 than the width of the outer surface of the flywheel B3, it is preferred that the centered ball bearing is fitted into the first central recess such that the same difference in width to the outer surface of the flywheel results on both sides, and thus preferably U1 = U2, and thus preferably B3 = B6 + U2 + U2, or particularly preferably B3 = B6 + 2U1 if U1 = U2. Thus, the first and second centered extensions are preferably assembled such that, starting from the inner surface, they...The inner surface of the disc-shaped side caps up to the distance between the centered ball bearing and the disc-shaped side caps (B 4 + U 1 and B 5 + U 2) has an outer diameter which is preferably larger than the outer diameter of the second central recess and preferably smaller than the diameter of the first central recess and further preferably lies in the area between the diameter of the second central recess of the centered ball bearing and the diameter of the first central recess of the flywheel.

[0195] Preferably, the centered extensions from the distance between the inner surfaces of the respective disc-shaped side cap to the centered ball bearing preferably up to half the width of the centered ball bearing (B 1 - (B 4 + U 1 ) = ½ B 6 and B 2 - (B 5 + U 2 ) = ½ B 8 ) have an outer diameter which corresponds to the outer diameter of the second central recess, so that a positive engagement in the second central recess is possible.

[0196] If the centered ball bearing has a greater width B6 than the width of the outer surface of the flywheel B3, it is preferred that the centered ball bearing is fitted into the first central recess such that the same difference in width to the outer surface of the flywheel results on both sides, and thus preferably U1 = U2, and thus preferably B6 = B3 + U2 + U2, or particularly preferably B6 = B3 + 2U1 if U1 = U2. Thus, the first and second centered extensions are preferably composed such that, starting from the inner surface, theyThe inner surface of the disc-shaped end caps, extending to the distance between the centered ball bearing and the disc-shaped end caps, has an outer diameter that is preferably larger than the outer diameter of the second central recess and preferably smaller than the diameter of the first central recess, and further preferably lies in the range between the diameter of the second central recess of the centered ball bearing and the diameter of the first central recess of the flywheel. In further preferred embodiments, it is particularly preferred that, for example, the inner ring of the centered ball bearing has a width B0, wherein the outer ring of the centered ball bearing preferably has a width smaller than B0, so that the free rotation of the flywheel is not hindered or prevented.

[0197] Preferably, the centered extensions from the distance between the inner surfaces of the respective disc-shaped side cap to the centered ball bearing preferably up to half the width of the centered ball bearing (B 1 - (B 4 + U 1 ) = ½ B 6 and B 2 - (B 5 + U 2 ) = ½ B 6 ) have an outer diameter which corresponds to the outer diameter of the second central recess, so that a positive engagement in the second central recess is possible.

[0198] In a preferred embodiment, the first and second centered extensions can only engage in the second centered recess to a length equal to half the width of the centered ball bearing, since the larger outer diameter of the centered extensions at the distance between the inner surface of the respective disc-shaped side cap and the centered ball bearing (B 4 + U 1 and B 5 + U 2) makes a positive engagement of the extensions in the second centered recess impossible within this distance length, as the second centered recess has a smaller diameter.

[0199] As described above, the flywheel has a distance B 4 or B 5 to the inner surfaces of the disc-shaped side caps, which is preferably in the range between 0.1 - 3.0 mm, 0.3 mm - 2.0 mm, more preferably 0.5 mm - 1.5 mm and most preferably 0.8 mm - 1.2 mm.

[0200] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension has two areas of different diameters and the part of the first centered extension bearing against the inner surface has a diameter that is smaller than the diameter of the first central recess of the flywheel and larger than the diameter of the second central recess of the centered ball bearing and has a width that corresponds to half the width of the flywheel minus half the width of the centered ball bearing plus 0.1 mm to 3.0 mm and the second area of ​​the first centered extension, which abuts the first area of ​​the first centered extension, has a diameter that corresponds to the diameter of the second central recess of the centered ball bearing.

[0201] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the first centered extension has two areas of different diameters and the part of the first centered extension abutting the inner surface has a diameter that is smaller than the diameter of the first central recess of the flywheel and larger than the diameter of the second central recess of the centered ball bearing and has a width that corresponds to half the width of the flywheel minus half the width of the centered ball bearing plus a distance B 4 between the flywheel and the inner surface of the first disc-shaped side cap and the second area of ​​the first centered extension, which abuts the first area of ​​the first centered extension, has a diameterwhich corresponds to the diameter of the second central recess of the centered ball bearing.

[0202] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the second centered extension has two areas of different diameters and the part of the second centered extension abutting the inner surface has a diameter that is smaller than the diameter of the first central recess of the flywheel and larger than the diameter of the second central recess of the centered ball bearing and has a width that corresponds to half the width of the flywheel minus half the width of the centered ball bearing plus 0.1 mm to 3.0 mm and the second area of ​​the second centered extension, which abuts the first area of ​​the second centered extension, has a diameter that corresponds to the diameter of the second central recess of the centered ball bearing.

[0203] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel arranged between two opposing disc-shaped end caps, wherein the flywheel has an outer shell with a first central recess and a centered ball bearing with a second central recess, and the centered ball bearing is inserted in the first central recess of the outer shell, the first disc-shaped end cap has an outer surface and a first centered extension on the inner surface, the opposing second disc-shaped end cap has an outer surface and a second centered extension on the inner surface, the first centered extension is suitable for engaging in the second central recess of the centered ball bearing, and the second centered extension is suitable forto engage in the second central recess of the centered ball bearing and / or in the first centered extension of the first disc-shaped side cap, wherein the second centered extension has two areas of different diameters and the part of the second centered extension abutting the inner surface has a diameter that is smaller than the diameter of the first central recess of the flywheel and larger than the diameter of the second central recess of the centered ball bearing and has a width that corresponds to half the width of the flywheel minus half the width of the centered ball bearing plus a distance B 5 between the flywheel and the inner surface of the second disc-shaped side cap and the second area of ​​the second centered extension, which abuts the first area of ​​the second centered extension, has a diameterwhich corresponds to the diameter of the second central recess of the centered ball bearing.

[0204] Accordingly, the present invention also relates to a rotatable toy suitable for a children's game, comprising a freely rotatable flywheel (S) arranged between two opposing disc-shaped side caps (K1) and (K2), wherein the flywheel (S) has an outer shell (M) and a centered ball bearing (L), the first disc-shaped side cap (K1) has an outer edge (R1), an outer surface (F1) and a first centered extension (P1) on the inner surface (I1), the opposing second disc-shaped side cap (K2) has an outer edge (R2), an outer surface (F2) and a second centered extension (P2) on the inner surface (I2), and the extensions (P1) and (P2) are suitable for engaging with the flywheel (S), wherein the disc-shaped side caps (K1) and (K2) are movable at the outer edge (R1) and (R2) relative to the freely rotatable flywheel (S).to fix the freely rotatable flywheel (S) in its position, wherein the first centered extension has two areas of different diameters and the part of the first centered extension that abuts the inner surface has a diameter that is smaller than the diameter of the first central recess of the flywheel and larger than the diameter of the second central recess of the centered ball bearing and has a width that corresponds to half the width of the flywheel minus half the width of the centered ball bearing plus a distance B 4 between the flywheel and the inner surface of the first disc-shaped side cap and the second area of ​​the first centered extension that abuts the first area of ​​the first centered extension has a diameterwhich corresponds to the diameter of the second central recess of the centered ball bearing and / or wherein the second centered extension has two areas of different diameters and the part of the second centered extension that abuts the inner surface has a diameter that is smaller than the diameter of the first central recess of the flywheel and larger than the diameter of the second central recess of the centered ball bearing and has a width that corresponds to half the width of the flywheel minus half the width of the centered ball bearing plus a distance B 5 between the flywheel and the inner surface of the second disc-shaped side cap and the second area of ​​the second centered extension that abuts the first area of ​​the second centered extension has a diameter that corresponds to the diameter of the second central recess of the centered ball bearing.

[0205] In a further preferred embodiment, the first and / or the second extension can each have a total length that is shorter than half the distance or half the distance between the side caps. In a further embodiment, the first and the second extension can have different total lengths.Preferably, the part of the first extension of the first side cap, which has an outer diameter corresponding to the outer diameter of the second central recess of the ball bearing, so that this part of the first extension can be positively engaged in the second central recess of the centered ball bearing, together with the part of the second extension of the second side cap, which has an outer diameter corresponding to the outer diameter of the second central recess of the ball bearing, so that this part of the second extension can be positively engaged in the second central recess of the centered ball bearing, shall in total correspond to a maximum width of the flywheel body or a maximum width of the outer surface of the flywheel body or a maximum width of the centered ball bearing.It is preferred if the length of the parts of the first and second extensions, which have an outer diameter corresponding to the outer diameter of the second central recess of the centered ball bearing and which can be positively engaged in the second central recess of the centered ball bearing, have a length such that the side caps, after positive engagement in the second central recess of the centered ball bearing, cannot be released from the second central recess of the centered ball bearing without an effort, e.g., not solely by gravity.

[0206] The first and second extensions on the inner surfaces of the disc-shaped side caps, as illustrated in the embodiments described above, may preferably have different shapes. For example, a centered extension on the inner surface of a disc-shaped side cap may be cylindrical or in the form of a triangle, quadrilateral, pentagon, or regular polygon.The portion of the centered extension on the inner surface of a disc-shaped side cap, located at the distance between the inner surface of the disc-shaped side cap and the flywheel (e.g., the first stage of a two-stage extension), can have a different external shape than the portion of the extension that has an outer diameter corresponding to the outer diameter of the second central recess of the centered ball bearing (i.e., the second stage of a two-stage extension), so that this portion of the centered extension can engage positively in the second central recess of the centered ball bearing. If the positively engaging portion of a centered extension of a disc-shaped side cap is cylindrical, it is preferred that this portion has an outer diameter corresponding to the outer diameter of the second central recess.It is particularly preferred if the second central recess is also cylindrical. If, for example, the form-fitting part of a centered extension of a disc-shaped side cap has the shape of a regular hexagon, it is preferred that twice the distance between a vertex of the regular hexagon and the center of the regular hexagon, i.e., twice the radius or the diameter of the circle passing through the vertices of the regular hexagon, corresponds to the outer diameter of the second central recess of the centered ball bearing, so that the part of the extension of a side cap in the shape of a regular hexagon can be form-fittingly engaged in the second central recess of the centered ball bearing.

[0207] The preferred embodiments described above, in which the centered extensions have two stages as two-stage extensions, represent only one way to achieve a defined distance between the flywheel and the inner surfaces of the side caps. In some further preferred embodiments, spacers of a defined diameter can also be provided on the inner surface of the disc-shaped side caps. These spacers preferably have a length corresponding to the lengths of the first stages of the two-stage extensions as described above. In one exemplary embodiment, for example, the first centered extension has spacers on its inner surface that lie within a region of the diameter of the disc-shaped side cap corresponding to the diameter of, for example, the inner ring of the centered ball bearing. The embodiments described above,wherein the centered extensions with two stages are present as two-stage extensions or the disc-shaped side caps can have spacers for all the embodiments of the centered extensions described above, such that the first centered extension engages in the second central recess of the ball bearing and the second centered extension engages in the first extension located in the second central recess of the centered ball bearing, as well as that the first centered extension engages in the second central recess of the centered ball bearing and the second centered extension engages in the second central recess of the centered ball bearing as well as in the first centered extension located in the second central recess of the centered ball bearing, and as well as that the first and the second centered extensions each engage in the second central recess of the centered ball bearing without interlocking.

[0208] To prevent the first centered extension of the first disc-shaped side cap from falling apart after the first centered extension is joined to the second centered recess of the centered ball bearing or flywheel, and the second centered extension of the second disc-shaped side cap is joined to the first centered extension of the first disc-shaped side cap, some preferred embodiments incorporate a locking mechanism within the first centered extension of the first disc-shaped side cap. This locking mechanism takes the form of a push-fit connection with resistance, requiring a specific compressive force to press the second centered extension into the first centered extension and a specific tensile force to release the connection. Such a push-fit connection can be easily achieved by thickening and thinning the material accordingly.For example, a material thickening or point-shaped or circular protrusions can be provided in the center of the outer surface of the second centered extension, which engage appropriately in a corresponding recess on the inner surface of the first centered extension. A minimum compressive force of 20 N is required to release this connection, i.e., to firmly insert the second centered extension into the first centered extension. Likewise, a tensile force of at least 20 N is required to release this connection.

[0209] The plug connection described above represents only one way to implement a locking mechanism. Other methods known from the prior art can also be used to ensure that the flywheel, the first disc-shaped end cap, and the second disc-shaped end cap do not fall apart after being assembled to form the rotatable play element according to the invention. It may also be preferable for this connection to be achieved by a force-fit assembly, for example, if the central recess of the first centered extension has a thread into which the second centered extension can be screwed like a screw.In some embodiments, it may be preferred that the assembled parts of the rotatable game body cannot be separated from one another. For example, one of the two disc-shaped end caps can be joined to the flywheel in such a way, for example, bonded with a suitable adhesive, that these two parts of the rotatable game body can no longer be separated, and in particular, cannot be separated with a pulling force of 20 N. In these embodiments, it may be preferred, for example, that only one of the disc-shaped end caps can be removed and replaced with a pulling force of 20 N.In a preferred embodiment, the first centered extension can engage in the second centered recess of the centered ball bearing, wherein the first centered extension of the first disc-shaped side cap has a centered recess into which the second centered extension of the second disc-shaped side cap can engage in a form-fitting manner, and wherein the first disc-shaped side cap and the centered ball bearing can no longer be separated from each other, and wherein the second extension can engage in a form-fitting manner in the centered recess of the first extension. However, it is particularly preferred that the assembled disc-shaped side caps can be separated from each other and also from the flywheel under the application of force. This is particularly preferred if, for example, the flywheel or one or both of the disc-shaped side caps of the rotatable play element are to be replaced.In an exemplary embodiment, various flywheel bodies and various disc-shaped side caps are provided, which can be combined by a user in any combination.

[0210] It is therefore preferred that the second centered extension (P2) of the second disc-shaped side cap (K2) engages in the first centered extension (P1) of the first disc-shaped side cap (K1) in such a way or that the second centered extension (P2) of the second disc-shaped side cap (K2) can be connected to the first centered extension (P1) of the first disc-shaped side cap (K1) when engaging in such a way that a compressive force of at least 20 N is required to establish the connection and a tensile force of at least 20 N is required to separate this connection again.

[0211] To allow the end caps to be replaced independently, it is preferred that the first centered extension is suitable for engaging in the second centered recess of the centered ball bearing, and that the second centered extension is suitable for engaging in the second centered recess of the centered ball bearing, without the centered extensions interlocking with each other. It is preferred that the first centered extension engages in the second centered recess on the first side of the centered ball bearing, and the second centered extension engages in the second centered recess on the second side of the centered ball bearing.

[0212] In a preferred embodiment of the rotatable game piece according to the invention, the flywheel or the outer shell of the flywheel, as well as the opposing end caps, have one or more printable outer surfaces. In an exemplary embodiment of a printed rotatable game piece, the outer shell of the flywheel, for example, has the shape of a regular hexagon. On the sides of the hexagon, the six outer fields are printed, for example, with different game pieces or the numbers from 1 to 6. Accordingly, this exemplary embodiment of a rotatable game piece, when printed with the numbers from 1 to 6, can be used like a die. The flywheel is set into rotation by a user and stopped, for example, with a finger, the field on which the user's finger decelerates the flywheel representing the number that the user has "rolled."If, however, the outer surface of the outer rim of the outer shell is printed with game pieces or actions, the user can select a game piece or an action by stopping the rotating flywheel.

[0213] In some preferred embodiments of the rotatable game body according to the invention, further components, which, for example, generate acoustic and / or visual signals, can be integrated into the flywheel or into the two disc-shaped end caps. Suitable components for generating visual signals are, for example, light-emitting diodes (LEDs), which can be integrated, for example, into one or more recesses in the outer shell of the flywheel, the flywheel itself, or the disc-shaped end caps. In a preferred embodiment, for example, several LEDs with different light colors can be installed in the outer shell of the flywheel.Suitable components for generating acoustic signals can be, as in the case of LEDs, components that emit acoustic signals instead of visually perceptible light, or, for example, be integrated in such a way that an airflow flows through the component during rotation, thereby generating an acoustic signal. Such components that generate acoustic or visual signals, particularly preferably those that generate them only during rotation of the rotating body, are known from the prior art, and the person skilled in the art is able, based on the present disclosure, to select a suitable component for generating acoustic and / or visual signals in order to integrate it into the rotatable game piece. Character description

[0214] Figure 1Figure 1 shows a preferred embodiment of the rotatable game piece according to the invention. The flywheel (S), which is cylindrical and has a printable surface, is arranged centrally between the two disc-shaped end caps (K1) and (K2). On the right, the first disc-shaped end cap (K1) is shown as a round cylindrical disc with a planar, printable circular outer surface (F1). The second disc-shaped end cap (K2) is indicated on the left only by its outer edge. The diameter of the first disc-shaped end cap (K1) corresponds to the diameter of the second disc-shaped end cap (K2), and this corresponds to the diameter of the flywheel (S). The width of the flywheel (S) corresponds to 10 to 12 times the width of a disc-shaped end cap, with the width of the first disc-shaped end cap (K1) corresponding to the width of the second disc-shaped end cap (K2). Figure 2: Figure 2AFigure 1 shows an image of the flywheel (S) consisting of the outer shell (M) and the positively and centrally inserted centered ball bearing (L). The centered ball bearing (L) has the second central recess (A2). Figure 2B Figure 1 shows the centered arrangement of the outer shell (M) and the inner centered ball bearing (L). The cylindrical centered ball bearing (L) with the centered second central recess (A2) is concentrically surrounded by the cylindrical outer shell (M). The axis of rotation, about which the flywheel (S) is freely rotatable, runs perpendicular to the center of the flywheel (S). Figure 3 :Figure 1 shows the assembled disc-shaped side caps (K1) and (K2) without the flywheel (S) arranged between them, both having the same width and diameter. The cylinder arranged centrally between the disc-shaped side caps (K1) and (K2) around the axis of rotation is the first centered extension (P1) located on the inner surface (I1) of the first disc-shaped side cap (K1), into which the Figure 3 The second, non-recognizable, centered extension (P2) is arranged centrally on the inner surface (I2) of the side cap (K2) and engages. Figure 4 :Figure 1 shows the game body with a flywheel (S) with a cylindrical outer shell (M), a cylindrical centered ball bearing (L), and the cylindrical central recess of the centered ball bearing (L). To the right of the flywheel (S) is the cylindrical second disc-shaped side cap (K2) with the outer surface (F2) and the centrally arranged cylindrical second centered extension (P2). On the left is the cylindrical first disc-shaped side cap (K1) with the inner surface (11) and the cylindrical first centered extension (P1) arranged centrally thereon. Figure 5 : Shows an exemplary cylindrical second centered extension (P2) in the form of a hollow cylinder or cylindrical shell from above (left) and from the side (right) suitable to engage with the first centered extension (P1). Figure 6 :Shows an exemplary cylindrical first centered extension (P1) in the form of a hollow cylinder or cylindrical shell from above (left) and from the side (right). Figure 7 : Figure 1 shows a preferred embodiment of a rotatable game body according to the invention, comprising a flywheel (S) with an outer shell (M) having a width B3, a centered ball bearing (L) having a width B6, and a second central recess (A2) of the centered ball bearing (L). To the right of the flywheel (S) is the first disc-shaped side cap (K1) with the centrally arranged first centered extension (P1) having a length B1. The first centered extension (P1) has a central recess with a depth T2. To the left is the second disc-shaped side cap (K2) with the centrally arranged second centered extension (P2) having a length B2. Figure 8: Fig. 8AFigure 1 shows the interlocking of the second centered extension (P2) with length B2 of the second disc-shaped side cap (K2) with the first centered extension (P1) with length B1 of the first disc-shaped side cap (K1) without an intervening flywheel (S). The length of both extensions is the same, i.e., B1 = B2, thus enabling complete interlocking. The disc-shaped side caps (K1) and (K2) are spaced B0 apart. Fig. 8BFigure 1 shows the interlocking of the second centered extension (P2) of the second disc-shaped side cap (K2), with a length B2, into the first centered extension (P1) of the first disc-shaped side cap (K1), with a flywheel (S) positioned between them. The lengths of both extensions are equal, i.e., B1 = B2, thus enabling complete interlocking. The disc-shaped side caps (K1) and (K2) are spaced B0 apart. The outer shell (M) has a width B3, and the centered ball bearing (L) has a width B6 and a second central recess (A2) in the ball bearing (L). The distance between the flywheel (S) and the first disc-shaped side cap (K1) corresponds to a length B4, and the distance between the flywheel (S) and the second disc-shaped side cap (K2) corresponds to a length B5.In this exemplary embodiment, the first centered extension (P1) of the first disc-shaped side cap (K1) enga...

Claims

1. Rotatable play body suitable for a children's game consisting of a freely rotatable swing body (S) arranged between two mutually opposite disc-shaped side caps (K1, K2), wherein the swing body (S) exhibits an outer shell (M) and a centred ball bearing (L), the first disc-shaped side cap (K1) exhibits an outer edge (R1), an outer face (F1) and, on the inner face (11), a first centred extension (P1), the opposite second disc-shaped side cap (K2) exhibits an outer edge (R2), an outer face (F2) and, on the inner face (I2), a second centred extension (P2), and the extensions (P1, P2) are suitable for engaging in the swing body (S), characterized in that the disc-shaped side caps (K1, K2) are movable at the outer edge (R1, R2) towards the freely rotatable swing body (S) in order to fix the freely rotatable swing body (S) in its position.

2. The rotatable play body according to claim 1, wherein the disc-shaped side caps (K1, K2) exhibit a diameter in the range of 0.5 times to 1.2 times of the outer diameter of the swing body (S) and / or both have the same diameter which corresponds to the outer diameter of the swing body (S).

3. The rotatable play body according to claim 1 or 2, wherein the disc-shaped side caps (K1, K2) at the outer edge (R1, R2) are reversibly movable against the freely rotatable play body (S) by an acting compressive force (AF) in order to fix the freely rotatable swing body (S) in its position.

4. The rotatable play body according to any one of the claims 1 - 3, wherein the outer shell (M) and / or the first disc-shaped side cap (K1) and / or the second disc-shaped side cap (K2) is / are cylindrical or exhibit(s) a triangular, rectangular, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape.

5. The rotatable play body according to claim 4, wherein the triangular, rectangular, pentagonal, hexagonal, heptagonal, octagonal or polygonal shape is a regular polygon.

6. The rotatable play body according to any one of the claims 1 - 5, wherein the freely rotatable swing body (S) with the outer shell (M) is cylindrical, and the outer cylindrical surface of the cylindrical swing body (S) is plane and printable.

7. The rotatable play body according to claim 6, wherein the wall thickness (W) of the cylindrical outer shell (M) of the freely rotatable swing body (S) is constant and / or wherein the outer radius of the cylindrical outer shell (M) of the freely rotatable swing body (S) is constant.

8. The rotatable play body according to any one of the claims 1 - 7, wherein the disc-shaped side caps (K1, K2) at outer edge (R1, R2) are reversibly movable against the freely rotatable swing body (S) by an acting compressive force in the range of 5 N to 100 N in order to fix the freely rotatable swing body (S) in its position.

9. The rotatable play body according to any one of the claims 1 - 8, wherein the distance (B0) of the inner faces (I1, I2) of the mutually opposite side caps (K1, K2) is greater than the width (B3) of the swing body (S).

10. The rotatable play body according to any one of the claims 1 - 9, wherein the width of the centred ball bearing (L) is 0.50 times to 0.95 times of the width of the swing body (S) and / or wherein the disc-shaped side caps (K1) and (K2) each have a width in the range of 0.05 times to 0.5 times of the width of the swing body (S).

11. The rotatable play body according to any one of the claims 1 - 10, wherein the mass of the swing body (S) is at least 15 times the mass of the two disc-shaped side caps (K1 and K2).

12. The rotatable play body according to any one of the claims 1 - 11, wherein the first centred extension (P1) of the first disc-shaped side cap (K1) engages form-closed into a second central recess (A2) of the centred ball bearing (L) and the second centred extension (P2) of the second disc-shaped side caps (K2) engages form-closed into the first extension (P1) of the first disc-shaped side cap (K1) located in the second central recess (A2) of the centred ball bearing (L) or the second centred extension (P2) of the side cap (K2) engages form-closed into the second central recess (A2) of the centred ball bearing (L) and into the first centred extension (P1) of the first disc-shaped side cap (K1) located in the second central recess (A2) or the second centred extension (P2) engages also into the second central recess (A2) of the centred ball bearing (L) without the centred extensions (P1, P2) engage into each other.

13. The rotatable play body according to any one of the claims 1 - 12, wherein the first centred extension (P1) has two regions of different diameters and the part of the first centred extension (P1) abutting the inner face (11) has a diameter which is smaller than the diameter of a first central recess (A1) of the swing body (S) and which is larger than the diameter of the second central recess (A2) of the centred ball bearing (L) and has a width, which corresponds to half the width of the swing body (S) minus half the width of the centred ball bearing (L) plus a distance (B4) between the swing body (S) and the inner face (11) of the second disc-shaped side cap (K1), and the second region of the first centred extension (P1) which abuts the first region of the first centred extension (P1) has a diameter which corresponds to the diameter of the second central recess (A2) of the centred ball bearing (L) or wherein the second centred extension (P2) has two regions of different diameters and the part of the second centred extension (P2) abutting the inner face (I2) has a diameter which is smaller than the diameter of the first central recess (A1) of the swing body (S) and which is larger than the diameter of the second central recess (A2) of the centred ball bearing (L) and has a width, which corresponds to half the width of the swing body (S) minus half the width of the centred ball bearing (L) plus a distance (B5) between the swing body (S) and the inner face (I2) of the second disc-shaped side cap (K2), and the second region of the second centred extension (P2) which abuts against the first region of the second centred extension (P2) has a diameter corresponding to the diameter of the second central recess (A2) of the centred ball bearing (L).

14. The rotatable play body according to any one of the claims 1 - 13, wherein the second centred extension (P2) of the second disc-shaped side cap (K2) engages the first centred extension (P1) of the side cap (K1) or the second extension (P2) of the side cap (K2) can be connected to the first extension (P1) of the side cap (K1) during engagement in such a way that a compressive force of at least 20 N is required to establish the connection and a tensile force of at least 20 N is required to disconnect this connection.

15. The rotatable play body according to any one of the claims 1 - 14, wherein the outer shell (M) exhibits one or more recesses and / or wherein the first disc-shaped side cap (K1) and / or the second disc-shaped side cap (K2) exhibit one or more recesses at the outer edge (R1, R2) of the side cap (K1, K2) and / or wherein the first disc-shaped side cap (K1) and / or the second disc-shaped side cap (K2) exhibit one or more recesses which are completely enclosed by the material of the respective side cap (K1, K2).