Rotary toy

Abstract

The present invention provides a rotary toy 10 comprising a shaft 6 provided with an accelerator 8 on a body 6c, first and second cups 2a and 2b fixed respectively to one end and the other end of the shaft, and a first cover 14a that is rotatably attached to the shaft between the accelerator and the first cup and that covers at least a part of the first cup. When the accelerator is caused to rotate by friction of an operation cable and the motive power from the rotation is transmitted to the first and second cups via the shaft, causing the cups to rotate, the first cover rotates idly relative to the shaft, and at least a part of the rotating first cup can be covered without rotation (or with weak rotation). Thus, when the rotary toy is dropped on, for example, the ground surface or the like, the rotation of the first cup can be prevented from being transmitted to the ground surface or the like by idle rotation of the first cover that covers the first cup during rotation.

Description

Rotating toy

[0001] The present invention relates to a spinning toy.

[0002] Diabolo is a type of spinning top consisting of two rotating cups (or rotating disks) fixed to both ends of a shaft. The spinning cups are spun via the shaft by a control string attached between the tips of two hand sticks, stabilizing and manipulating the top (see, for example, Patent Document 1). Diabolo has recently become recognized as a sport, and the number of players is increasing. However, if the diabolo is not operated correctly, there is a risk that the spinning diabolo will fall to the ground or fly away, or interfere with the human body and cause injury. Patent Document 1 Registered Utility Model No. 3060511 General disclosure

[0003] (Item 1) The rotating toy may include a shaft provided with an accelerator. The rotating toy may include a first cup and a second cup fixed to one end and the other end of the shaft, respectively. The rotating toy may include a first cover rotatably attached to the shaft between the accelerator and the first cup and covering at least a portion of the first cup. (Item 2) The rotating toy may further include a first bearing disposed between the first cover and the shaft and rotatably attaching the first cover to the shaft. (Item 3) The shaft may have a small-diameter neck on one side of a body where the accelerator is provided. The first bearing may be attached to the neck by engaging an inner ring with a shoulder between the body and the neck. (Item 4) The rotating toy may further include a first spacer disposed between the inner ring of the first bearing and the shoulder. (Item 5) The rotating toy may further include a second spacer disposed between the first cup and another shoulder portion between the bolt portion formed at one end of the shaft and the neck portion. (Item 6) The second spacer may be formed by overlapping a large-diameter spacer abutting the top surface of the first cup and a small-diameter spacer abutting the other shoulder portion in the longitudinal direction of the shaft. (Item 7) The first cover may have a hole portion through which the shaft passes, the hole portion having a stepped portion formed on the inner surface that protrudes inward and surrounds the hole portion. The first bearing may be fitted into the hole portion from one side onto the stepped portion. (Item 8) The rotating toy may further include a first buffer member having a hollow cylindrical shape that covers an outer ring of the first bearing and disposed between the outer ring and the hole portion. (Item 9) The first buffer member may include a bottom portion disposed between the outer ring and the stepped portion on one opening side of the hollow cylindrical shape. (Item 10) The first buffer member may include a top surface portion that abuts against the outer ring on the other opening side of the hollow cylindrical shape. (Item 11) The spinning toy may further include a second bearing disposed between the first cover and the shaft and rotatably attaching the first cover to the shaft. The second bearing may be fitted into the hole from the other side onto the step portion.(Item 12) The spinning toy may further include a second buffer member having a hollow cylindrical shape covering the outer ring of the first bearing and disposed between the outer ring and the hole. (Item 13) The first cup may have a saucer shape with its bottom facing one end of the shaft. The first cover may include a peripheral cover having a shape formed by connecting a hollow frustum covering the outer periphery of the saucer shape and a cylinder covering the edge of the saucer shape. (Item 14) The first cover may include a peripheral cover covering the peripheral surface of the first cup and a side cover covering the side of the first cup. (Item 15) The side cover may include an annular buffer material. (Item 16) The side cover may have a concave surface facing the first cup. (Item 17) The first cup may have an overall shape of a hollow, approximately circular truncated cone, with a thick portion at the edge of the approximately circular truncated cone. (Item 18) The first cup may have a body having a hollow, generally truncated cone overall shape and a weight attached to the edge of the body. (Item 19) The shaft may secure the first cup by threading a bolt portion formed at one end into a nut portion formed at the center of the first cup. (Item 20) The shaft may secure the first cup by passing a bolt portion formed at one end through a hole formed at the center of the first cup from one side of the first cup and threading it into a nut on the other side of the first cup. (Item 21) The rotating toy may further include the accelerator and a one-way clutch that rotatably attaches the accelerator to the shaft in one direction. (Item 22) The rotating toy may further include a second cover rotatably attached to the shaft between the accelerator and the second cup and covering at least a portion of the second cup. (Item 23) The rotating toy may be a diabolo.

[0004] The above summary of the invention does not list all of the features of the present invention, and subcombinations of these features may also be inventions.

[0005] 1 shows the overall structure of a rotating toy according to a first embodiment; 2 shows the components of the rotating toy in an exploded perspective view; 3 shows the cross-sectional structure of the rotating toy in an assembled state; 4 shows the overall structure of a rotating toy according to a second embodiment; 5 shows the components of the rotating toy in an exploded perspective view; 6 shows the cross-sectional structure of the rotating toy in an assembled state; 7 shows the configuration of a buffer member; 8 shows attachment of a bearing to a peripheral cover using a buffer member (part 1); 9 shows attachment of a bearing to a peripheral cover using a buffer member (part 2); 10 shows the components of a spacer in an exploded perspective view from above; 11 shows the components of the spacer in an exploded perspective view from below; 12 shows the configuration of the spacer in an exploded perspective view and from a side; 13 shows the components around a bearing of a rotating toy according to a modified example in an exploded perspective view; 14 shows the cross-sectional structure of the area around a bearing of a rotating toy according to a modified example; 15 shows the configuration of a buffer member according to a modified example; 16 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 17 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 18 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 19 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 20 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 21 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 22 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example; 23 shows attachment of a bearing to a peripheral cover using a buffer member according to a modified example.

[0006] The present invention will be described below through embodiments of the invention, but the following embodiments do not limit the scope of the invention as claimed. Furthermore, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0007] 1 to 3 show a spinning toy 10 according to a first embodiment. Here, Fig. 1 shows the overall structure of the spinning toy 10, Fig. 2 shows an exploded perspective view of the components of the spinning toy 10, and Fig. 3 shows a cross-sectional structure of the spinning toy 10 in an assembled state. An axis passing through the center of the spinning toy 10 is referred to as a reference axis L, and a direction parallel to the reference axis L is referred to as an axial direction. The spinning toy 10 is a top configured by fixing two spinning cups (also simply referred to as cups) to both ends of a shaft. In particular, the spinning toy 10 according to the first embodiment protects the spinning cups with a spinning cover, and includes a shaft 6, an axel 8, cups 2a and 2b, covers 14a and 14b, and bearings 3a and 3b.

[0008] The term "spinning toy" collectively refers to a spinning top that spins a weight around an axis, such as a diabolo, a yo-yo, or a spincore. In the following embodiments, the spinning toy is described as a diabolo as an example, but it may also be a yo-yo or a spincore. The control string for controlling the spinning toy is attached between the tips of two hand sticks, and the user can control the spinning toy by holding and operating them with both hands.

[0009] Spincore is a tool consisting of two bowl-shaped objects connected by their convex surfaces, which is controlled by a string threaded between two hand sticks. Performances can be performed by using the string to rotate the two connected bowls by manipulating the center, sending them into the air, or catching them. The bowls have a double structure, and the inner part rotates when the string is operated. The outer arm can move independently of the inner arm, so even if the inner part is rotating, the outer arm can still be grasped with the hand.

[0010] The shaft 6 is a power shaft for transmitting rotational power to the two cups 2a and 2b fixed at both ends thereof. The shaft 6 has a round bar shape extending in the axial direction, and is made up of a body portion 6c, a neck portion 6a, and a shaft 6b. ２ , 6b ２ , and the bolt portion 6a １ , 6b １ The shaft 6 can be integrally formed using a metal or alloy such as aluminum or stainless steel.

[0011] The body portion 6c is a large diameter portion located in the axial center of the shaft 6, and an accelerator 8 is provided here.

[0012] Neck 6a ２ , 6b ２ are portions located on one axial side (upper side in the drawing) and the other axial side (lower side in the drawing) of the body portion 6c, and covers 14a and 14b are rotatably attached to the side surfaces of the neck portion 6a. ２ , 6b ２The shoulders 6a are slightly smaller in diameter than the body 6c, and each of the shoulders 6a includes a torus surface facing one side and the other side in the axial direction between the body 6c and the shoulders 6a due to the difference in diameter (i.e., the difference in diameter) between the body 6c and the shoulders 6a. ３ , 6b ３ is formed.

[0013] Bolt portion 6a １ , 6b １ are portions located at one end and the other end of the shaft 6 in the axial direction, and each has a male thread formed thereon. １ , 6b １ The male threads are formed on the cups 2a and 2b (nut portions 2a to be described later). １ , 2b １ The cups 2 a and 2 b are fixed to both ends of the shaft 6 by screwing them into the female threads of the shaft 6 .

[0014] The accelerator 8 is a member that rotates due to the friction of the operating string, thereby applying rotational force to the shaft 6. The accelerator 8 is made of a metal or alloy such as aluminum or stainless steel and is integrally molded into a shape that has a through hole extending in the axial direction and a small diameter drum-like shape in the center on both axial ends.

[0015] The axel 8 can be mounted on the barrel portion 6 c of the shaft 6 via a one-way clutch bearing (also simply referred to as a one-way clutch) 9. The one-way clutch 9 has a cylindrical overall shape, and the inner ring located on the inside rotates in only one direction relative to the outer ring located on the outside. In other words, when the outer ring rotates in one direction, the inner ring is locked to the outer ring, and the rotational power is transmitted, causing it to rotate in one direction together with the outer ring. When the outer ring rotates in the other direction, the inner ring is not locked to the outer ring, meaning that the inner ring rotates freely without transmitting rotational power. By fixing the outer ring in a through-hole in the axel 8 and fixing the inner ring on the barrel portion 6 c of the shaft 6, the axel 8 is attached so that it is locked to the shaft 6 in one direction and can rotate (freely rotate) in the other direction.

[0016] Furthermore, two rotary shaft bearings 7 may be attached between both ends of the body portion 6c of the shaft 6 and both ends of the through-hole of the axel 8 so as to sandwich the one-way clutch 9 in the axial direction. The rotary shaft bearings 7 may have the same configuration (but different sizes) as bearings 3a and 3b, which will be described later. This fixes the one-way clutch 9 to the body portion 6c of the shaft 6.

[0017] In this way, a rotation axis can be formed by locking the accelerator 8 in one direction using the one-way clutch 9 and the rotary shaft bearing 7, and attaching it to the shaft 6 so that it can rotate freely in the other direction. As a result, when the operating string is fastened to the accelerator 8, the accelerator 8 rotates freely relative to the cups 2a, 2b and shaft 6, which rotate in one direction, and it is possible to avoid slowing down the rotation of the cups 2a, 2b due to friction of the operating string.

[0018] The axel 8 may be attached directly to the body 6c of the shaft 6 to form a fixed shaft. Alternatively, the axel 8 may be formed integrally with the shaft 6. In such a case, the rotational power of the axel 8 is transmitted directly to the cups 2a, 2b via the shaft 6, allowing the cups 2a, 2b to rotate in both directions.

[0019] The cups 2a and 2b are the main body of the spinning top, and include first and second cups 2a and 2b fixed to one end and the other end of the shaft 6, respectively.

[0020] The first cup 2a has a main body 2a ０ , nut portion 2a １ , and thick portion 2a ２ It has.

[0021] Main body 2a ０ is a weight part of the top, and is, for example, a hollow, shallow, truncated cone (for example, one end of the shaft 6 (bolt part 6a １ The main body 2a has an overall shape of a saucer with its bottom facing inwards. ０The main body 2a can be made of a metal or alloy such as aluminum or stainless steel, or a resin such as general-purpose plastic (e.g., polypropylene, polyethylene, polystyrene, etc.) or engineering plastic (e.g., polyamide, polycarbonate, polyacetal, etc.). ０ may be formed in a disk shape.

[0022] Nut portion 2a １ is the main body 2a ０ The bolt portion 6a is a cylindrical portion formed to protrude from the center of the bottom surface of the shaft 6, and has a female thread formed on the inner surface. １ (male screw) is inserted into the nut portion 2a formed at the center of the bottom surface of the first cup 2a. １ The first cup 2 a is fixed to the shaft 6 by being screwed into the female thread.

[0023] Thick part 2a ２ is the main body 2a ０ The thick part 2a is a weight of a top that is integrally formed with the same material on the inside of the edge of the (approximately truncated cone) ２ By making the thickness of the thick portion 2a larger, the weight can be increased, and the first cup 2a can be rotated with a large moment of inertia. ２ is the main body 2a ０ A separate body 2a made of brass, aluminum, or stainless steel, for example. ０ A heavier material is used to form the body 2a into, for example, a circular shape. ０ The mounting member may be attached by press-fitting onto the edge of the mounting member.

[0024] The second cup 2b is also the body 2a of the first cup 2a. ０ , nut portion 2a １ , and thick portion 2a ２ and a main body 2b formed in the same manner as ０ , nut portion 2b １ , and thick portion 2b ２ (Detailed description of these will be omitted.) A bolt portion 6b formed on the other end of the shaft 6 １ (male screw) is inserted into the nut portion 2b formed at the center of the bottom surface of the second cup 2b. １The second cup 2b is fixed to the shaft 6 by being screwed into the female thread.

[0025] The covers 14a, 14b include first and second covers 14a, 14b that cover at least a portion of the first and second cups 2a, 2b, respectively. In the rotating toy 10 according to the first embodiment, the first and second covers 14a, 14b are formed to cover the entire outside of the first and second cups 2a, 2b.

[0026] The first cover 14a is rotatably supported on the shaft 6 (neck 6a) at a position between the axle 8 and the first cup 2a by two bearings 3a (described later). ２ The first cover 14a has a peripheral cover 4a and a side cover 1a.

[0027] The peripheral cover 4a is a part that covers the peripheral surface of the first cup 2a, and is a part of the substantially truncated cone-shaped (or saucer-shaped) main body 2a included in the first cup 2a. ０ a hollow truncated cone (in this example, a substantially circular truncated cone) that covers the outer circumferential surface of the main body 2a ０ The peripheral cover 4 a has a shape formed by connecting a cylinder that covers the edge of the peripheral cover 4 a and the peripheral cover 4 a to each other. The peripheral cover 4 a can be molded using a resin such as a general-purpose plastic (e.g., polypropylene, polyethylene, polystyrene, etc.) or an engineering plastic (e.g., polyamide, polycarbonate, polyacetal, etc.).

[0028] The peripheral cover 4a has a hole 4a at the center of the top surface of the frustum, through which the shaft 6 passes. ０ Furthermore, on the inner surface thereof, a stepped portion 4a is formed which projects inward and goes around the circumference. １ The hole 4a is formed. ０ In the internal space of the １ One side (upper side in the drawing) and the other side (lower side in the drawing) of each form a space for accommodating two bearings 3a.

[0029] The side cover 1a is a part that covers the side of the first cup 2a (the upper surface or concave surface of the saucer shape), and the cushioning material 1a １ and concave surface 1a ２ It has.

[0030] Cushioning material 1a １ The cups 2a and 2b may include, for example, a foam body molded into a circular shape from plastic or the like, which acts as a buffer when the spinning toy 10 is dropped on the floor or the like, thereby preventing the impact from being transmitted to the cups 2a and 2b. The foam body may be covered with a sheet made of, for example, nylon or the like.

[0031] Concave surface 1a ２ is a circular buffer material 1a １ The sheet is placed over the inner edge of the first cup 2a and has a conical shape that is recessed toward the inside of the concave surface of the first cup 2a. ２ The concave surface 1a can be formed using a sheet made of, for example, nylon. ２ A hand stick, finger, or the like can be inserted into the upper recess to rotate the rotating toy 10 thereon.

[0032] The first cover 14a is a side cover 1a (a cushioning material 1a １ The cylindrical portion of the peripheral cover 4a is fitted into the interior of the cushioning material 1a. １ The side cover 1a and the peripheral cover 4a may be fixed by adhesive, double-sided tape, hook-and-loop fasteners, etc., provided between the inner surface of the first cup 2a and the outer surface of the cylindrical portion. The first cover 14a covers almost the entire first cup 2a, thereby preventing dust and other particles from entering the interior of the rotating toy 10. It also reduces air resistance to the rotating first cup 2a.

[0033] The second cover 14b is rotatably supported on the shaft 6 (neck 6b) at a position between the axle 8 and the second cup 2b by two bearings 3b (to be described later). ２ The second cover 14b has a peripheral cover 4b and a side cover 1b. In the rotating toy 10 according to the first embodiment, the peripheral cover 4b and the side cover 1b can be configured in the same manner as the peripheral cover 4a and the side cover 1a of the first cover 14a (detailed description of these will be omitted).

[0034] The bearings 3 a and 3 b each include two bearings (also referred to as a first bearing and a second bearing) 3 a and two bearings 3 b. The two bearings 3 a and 3 b can be ball bearings having an outer ring, an inner ring disposed inside the outer ring, and a plurality of balls disposed between them to support the inner ring so that it can rotate freely relative to the outer ring.

[0035] The first bearing 3a of the two bearings 3a has an outer ring inserted into a hole 4a in a peripheral cover 4a. ０ from one side (bottom in the drawing) to form a stepped portion 4a １ and insert the shaft 6 into the hole 4a ０ and the inner ring of the first bearing 3a, and the body 6c and neck 6a ２ Shoulder 6a between ３ By locking the inner ring to the neck portion 6a of the shaft 6, ２ (i.e., on the circumferential surface thereof). Here, the inner diameter of the inner ring is ２ The diameter of the inner ring is equal to or approximately equal to the diameter of the neck portion 6a. ２ When the first bearing 3a abuts against the outer surface of the neck 6a, the friction therebetween causes the first bearing 3a to ２ As a result, the first bearing 3a is fixed to the shoulder 6a of the shaft 6. ３ and the hole 4a of the peripheral cover 4a (first cover 14a) ０ Inner step 4a １ It will be sandwiched between.

[0036] Here, the inner ring and shoulder 6a of the first bearing 3a ３ A ring-shaped spacer 5a may be disposed between the neck portion 6a of the shaft 6. ２ The spacer 5a has an inner diameter equal to or slightly larger than the diameter of the shaft 6a and smaller than the diameter of the barrel portion 6c. The spacer 5a may be made of metal or plastic. This allows the first bearing 3a to be attached to the shaft 6 without coming into contact with the rotary shaft bearing 7.

[0037] The second bearing 3a of the two bearings 3a has an outer ring inserted into a hole 4a. ０ from the other side (upper side in the drawing) to form the stepped portion 4a１ and insert the shaft 6 into the hole 4a ０ and the bolt portion 6a of the shaft 6 through the inner ring of the second bearing 3a. １ The nut portion 2a of the first cup 2a １ By fixing the nut portion 2a １ The inner ring is engaged with the neck portion 6a of the shaft 6. ２ (i.e., on the circumferential surface thereof). Here, the inner diameter of the inner ring is ２ The diameter of the inner ring is equal to or approximately equal to the diameter of the neck portion 6a. ２ When the second bearing 3a abuts against the outer surface of the neck 6a, the friction therebetween causes the second bearing 3a to ２ As a result, the second bearing 3a is fixed to the nut portion 2a of the first cup 2a. １ and the hole 4a of the first cover 14a (peripheral cover 4a) ０ Inner step 4a １ It will be sandwiched between.

[0038] In this way, the two bearings 3a are inserted through the first cover 14a (the hole 4a of the peripheral cover 4a). ０ ) and shaft 6 (neck portion 6a ２ ) so as to be sandwiched between them in contact with each other, and the first cover 14a is attached to the shaft 6 so as to be rotatable (independently of the rotation of the shaft 6).

[0039] The two bearings 3b are inserted into the holes 4b of the peripheral cover 4b in the same manner as the two bearings 3a. ０ from one side (upper in the drawing) and the other side (lower in the drawing) to form the stepped portion 4a １ The hole 4b ０ The shaft 6 is passed through the inner ring of the bearing 3b, and the bolt portion 6b of the shaft 6 is １ The nut portion 2b of the second cup 2b １ By fixing the second cover 14b (the hole 4b of the peripheral cover 4b), ０ ) and shaft 6 (neck portion 6b ２ ) so as to be sandwiched between them in contact with each other, and the second cover 14b is attached to the shaft 6 so as to be rotatable (independently of the rotation of the shaft 6) (detailed description of these will be omitted).３ A ring-shaped spacer 5b may be disposed between the spacer 5b and the support 5. The spacer 5b may be made of metal or plastic.

[0040] The rotating toy 10 can be assembled as follows: First, the accelerator 8 is attached to the body 6c of the shaft 6 via the one-way clutch 9, and the two rotary shaft bearings 7 are fitted into one and the other of the through-holes of the accelerator 8 so as to axially sandwich the one-way clutch 9. Next, the two bearings 3a are fitted into the holes 4a of the peripheral cover 4a. ０ The step portions 4a are fitted into the respective １ Next, the bolt portion 6a of the shaft 6 is １ and neck portion 6a ２ The opening of the spacer 5a and the hole 4a of the peripheral cover 4a ０ through the bolt portion 6a １ The nut portion 2a of the first cup 2a １ Similarly, the bolt portion 6b of the shaft 6 is fixed to the １ and neck portion 6b ２ the opening of the spacer 5b and the hole 4b of the peripheral cover 4b. ０ through the bolt part 6b １ the nut portion 2b of the second cup 2b. １ As a result, the peripheral cover 4a is fixed to the nut portion 2a of the first cup 2a via the two bearings 3a. １ and the shoulder 6a of the shaft 6 ３ The neck portion 6a of the shaft 6 is sandwiched between the ２ The peripheral cover 4b is attached to the nut portion 2b of the second cup 2b via the two bearings 3b. １ and the shoulder 6b of the shaft 6 ３ The neck portion 6b of the shaft 6 is sandwiched between the ２ Finally, the side covers 1a and 1b are attached to the peripheral covers 4a and 4b, respectively, to form the first and second covers 14a and 14b, which cover the entire outside of the first and second cups 2a and 2b.

[0041] In the rotating toy 10 assembled in this manner, when the control string is entangled with the accelerator 8 and the accelerator 8 is rotated in one direction due to the friction of the control string, rotational power is transmitted to the shaft 6 via the one-way clutch 9, causing the first and second cups 2a, 2b to rotate. At this time, the first and second covers 14a, 14b that cover the first and second cups 2a, 2b, respectively, spin freely, covering the first and second cups 2a, 2b that are rotating without rotation (or with weak rotation). Because the first and second covers 14a, 14b are attached to the shaft 6 so as to be able to spin freely independently of the first and second cups 2a, 2b, the first and second cups 2a, 2b continue to rotate inside the first and second covers 14a, 14b even if the first and second covers 14a, 14b are grabbed with fingers or the like.

[0042] The rotating toy 10 according to the first embodiment includes a shaft 6 provided with an axel 8, first and second cups 2a, 2b fixed to one end and the other end of the shaft 6, respectively, and a first cover 14a attached to the side of the shaft 6 between the axel 8 and the first cup 2a so as to be rotatable relative to the shaft 6 and cover at least a portion of the first cup 2a. By attaching the first cover 14a to the side of the shaft 6 at a position between the axel 8 and the first cup 2a so as to be rotatable relative to the shaft 6, the first cover 14a can cover at least a portion or the entire outside of the first cup 2a independently of the rotation of the first cup 2a fixed to one end of the shaft 6.

[0043] For example, when the accelerator 8 is rotated by friction of the operating string and the power is transmitted to the first and second cups 2a, 2b via the shaft 6 to rotate them, the first cover 14a rotates freely relative to the shaft 6, and can cover at least a part or the entire outside of the rotating first cup 2a without rotating (or rotating weakly). As a result, when the rotating toy 10 is dropped on the ground, for example, the first cover 14a covering the rotating first cup 2a rotates freely, preventing the rotation of the first cup 2a from being transmitted to the ground, and the rotating toy can be held by grasping the first cover 14a with fingers or the like while the first cup 2a is rotating inside the first cover 14a.

[0044] Similarly to the first cover 14a, the second cover 14b may be attached to the side of the shaft 6 between the axel 8 and the second cup 2b so as to be rotatable relative to the shaft 6, and at least a portion of the second cup 2b may be covered by the second cover 14b. By attaching the second cover 14b to the side of the shaft 6 at a position between the axel 8 and the second cup 2b so as to be rotatable relative to the shaft 6, the second cover 14b can cover at least a portion of the second cup 2b independently of the rotation of the second cup 2b fixed to the other end of the shaft 6.

[0045] A spinning toy 10d according to a second embodiment is shown in Figures 4 to 6. Here, Figure 4 shows the overall structure of the spinning toy 10d, Figure 5 shows an exploded perspective view of the components of the spinning toy 10d, and Figure 6 shows a cross-sectional structure of the spinning toy 10d in an assembled state. An axis passing through the center of the spinning toy 10d is referred to as the reference axis L, and a direction parallel to the reference axis L is referred to as the axial direction. The spinning toy 10 is a top configured by fixing two spinning cups (also simply referred to as cups) to both ends of a shaft. Like the spinning toy 10 according to the first embodiment, the spinning toy 10d protects the spinning cups with a spinning cover, and includes a shaft 6, an axle 8, cups 2a and 2b, covers 14a and 14b, bearings 3a and 3b, and buffer members 13a and 13b.

[0046] The shaft 6, axle 8, covers 14a, 14b, and bearings 3a, 3b are configured in the same manner as those in the first embodiment, and therefore detailed description thereof will be omitted.

[0047] The cups 2a and 2b are the main body of the spinning top that rotates in the same manner as those in the first embodiment, and include first and second cups 2a and 2b fixed to one end and the other end of the shaft 6, respectively.

[0048] The first cup 2a has a main body 2a ０ and Weight 2a ３ It has.

[0049] Main body 2a ０ is a weight part of the top, and is, for example, a hollow, shallow, truncated cone (for example, one end of the shaft 6 (bolt part 6a １The main body 2a has an overall shape of a saucer with its bottom facing inwards. ０ The main body 2a can be formed using a resin such as a general-purpose plastic (e.g., polypropylene, polyethylene, polystyrene, etc.) or an engineering plastic (e.g., polyamide, polycarbonate, polyacetal, etc.). ０ may be formed in a disk shape.

[0050] Main body 2a ０ The bottom surface of the container has a cylindrical bottom portion 2a protruding from the center. ０１ The bottom portion 2a is formed. ０１ A hole is formed at the center of the shaft 6 in the direction of the reference axis. １ Bottom 2a ０１ The hole of the main body 2a ０ from the bottom side of the main body 2a ０ The first cup 2a is fixed to the end of the shaft 6 by screwing the inner surface of the main body 2a onto the nut 16a (female thread of the nut 16a). ０ A washer 15a made of, for example, carbon may be provided between the inner surface of the bolt 6a and the nut 16a. １ If the main body 2a is tightened excessively, ０ This can prevent deformation of the contact portion.

[0051] In addition, the bolt portion 6a １ A slotted or Phillips-shaped groove may be provided at the top of the bolt 6a. １ Insert the nut 16a into the groove of the bolt 6a to stop the rotation. １ or bolt part 6a １ can be loosened from

[0052] Weight 2a ３ is the weight of the top, and the main body 2a ０The weight 2a has a circular ring shape that can be attached to the edge of a circular truncated cone. The weight can be increased by making the circular ring shape wider and / or thicker and / or by using a material with a high specific gravity, thereby allowing the first cup 2a to rotate with a large moment of inertia. Metals such as brass, aluminum, or stainless steel can be used as materials with a high specific gravity. ３ is the main body 2a ０ It can be attached by press-fitting onto the edge of the

[0053] The second cup 2b is also the body 2a of the first cup 2a. ０ and Weight 2a ３ and a main body 2b formed in the same manner as ０ and Weight 2b ３ (Detailed description of these will be omitted.) A bolt portion 6b formed on the other end of the shaft 6 １ Bottom 2b ０１ The hole of the main body 2b ０ From the bottom side of the main body 2b ０ The first cup 2b is fixed to the end of the shaft 6 by screwing the inner surface of the body 2b into the nut 16b (female thread of the nut 16b). ０ A washer 15b may be provided between the inner surface of the nut 16b and the nut 16b.

[0054] The concave surfaces 1a of the side covers 1a and 1b of the covers 14a and 14b ２ , 1b ２ may have a shape that is tapered toward the inside of the concave surface of the first cup 2a, 2b and further tapered at a larger angle in the center.

[0055] The covers 14a and 14b are the side covers 1a and 1b (the cushioning material 1a １ , 1b １ In this example, the cylindrical portions of the peripheral covers 4a and 4b are fitted into the interior of the cushioning material 1a. １ , 1b １ On the inner surface of ３ , 1b ３ and hook-and-loop fasteners 4a on the outer surfaces of the cylindrical portions of the peripheral covers 4a and 4b. ３ , 4b ３The side covers 1a, 1b and the peripheral covers 4a, 4b may be fixed together using adhesive, double-sided tape, etc. instead of the hook-and-loop fasteners.

[0056] 7A shows the configuration of the buffer member 13a. The buffer members 13a and 13b buffer the impact transmitted to the bearings 3a and 3b and further to the shaft 6 via the covers 14a and 14b when the rotating toy 10d is dropped or hit on the ground or the like, and also disperse the impact by tilting the covers 14a and 14b (peripheral covers 4a and 4b) with respect to the shaft 6 and bringing the top surfaces of the truncated cones into contact with the accelerator 8. The buffer member 13a has a side surface 13a １ and bottom surface 13a ２ The side surface 13a １ The bottom surface 13a has a hollow cylindrical shape that covers the outer ring of the bearing 3a. ２ is the side surface 13a １ The side surface 13a is an annular plate member provided on one opening side of the hollow cylindrical shape of the bearing 3a, and has an opening having an inner diameter smaller than the outer diameter of the outer ring of the bearing 3a and larger than the outer diameter of the inner ring. １ and bottom surface 13a ２ The buffer member 13b can be integrally formed using, for example, elastomer (e.g., rubber such as natural rubber or silicone rubber) or gel (e.g., polyethylene gel or polyurethane gel). １ and bottom surface 13b ２ Includes.

[0057] 7B and 7C show the attachment of the bearing 3a to the peripheral cover 4a using the buffer member 13a. First, as shown in FIG. 7B, the bearing 3a is attached to the bottom surface 13a of the buffer member 13a. ２ The opening on the opposite side (upper side in the drawing) is １ As a result, the lower surface of the outer ring of the bearing 3a is inserted into the internal space of the bottom surface 13a. ２ The upper surface of the outer ring of the bearing 3a abuts against the side surface 13a. １ The bearing 3a inserted into the buffer member 13a is then inserted into the hole 4a of the peripheral cover 4a.０ from one side (upper side in the drawing) to form the stepped portion 4a １ As a result, as shown in FIG. 7C, the upper surface of the bearing 3a and the side surface 13a １ The upper surface of the bearing 3a is substantially flush with the upper surface of the peripheral cover 4a, and the outer ring of the bearing 3a and the hole 4a ０ The side surface 13a of the buffer member 13a is １ The outer ring of the bearing 3a and the step portion 4a １ The bottom surface 13a of the buffer member 13a is ２ will be distributed.

[0058] Similarly, the other bearing 3a is inserted into the other buffer member 13a, and the hole 4a of the peripheral cover 4a ０ 6) from the other side (the lower side in FIG. 6) to form the stepped portion 4a １ As a result, the upper surface and side surface 13a of the bearing 3a are １ The upper surface of the bearing 3a is substantially flush with the bottom surface of the peripheral cover 4a, and the outer ring of the bearing 3a and the hole 4a ０ The side surface 13a of the buffer member 13a is １ The outer ring of the bearing 3a and the step portion 4a １ The bottom surface 13a of the buffer member 13a is ２ will be distributed.

[0059] As described above, when the first bearing 3a of the two bearings 3a is inserted into the buffer member 13a, the hole 4a of the peripheral cover 4a ０ 6) into the step portion 4a １ and insert the shaft 6 into the hole 4a ０ and the inner ring of the first bearing 3a, and the body 6c and neck 6a ２ Shoulder 6a between ３ By locking the inner ring to the shaft 6, the first bearing 3a is ２ (i.e., on the circumferential surface thereof). Here, the inner diameter of the inner ring is ２ The diameter of the inner ring is equal to or approximately equal to the diameter of the neck portion 6a. ２ When the first bearing 3a abuts against the outer surface of the neck 6a, the friction therebetween causes the first bearing 3a to ２As a result, the first bearing 3a is fixed to the shoulder 6a of the shaft 6. ３ and the hole 4a of the peripheral cover 4a (first cover 14a) ０ Inner step 4a １ It will be sandwiched between.

[0060] The bearing 3a is inserted into the buffer member 13a, and in this state, the bearing 3a is inserted into the hole 4a of the peripheral cover 4a. ０ and fitted into the step portion 4a １ Instead of hanging the buffer member 13a on the hole 4a of the peripheral cover 4a, ０ and the hole 4a ０ The bearing 3a may be inserted into a buffer member 13a fixed inside the bearing 3a. As in the first embodiment, the inner ring and shoulder 6a of the first bearing 3a may be inserted into the buffer member 13a. ３ A ring-shaped spacer 5a may be disposed between them.

[0061] As described above, when the second bearing 3a of the two bearings 3a is inserted into the buffer member 13a, the hole 4a of the peripheral cover 4a ０ 6. The step portion 4a is inserted from the other side (upper side in FIG. 6). １ and insert the shaft 6 into the hole 4a ０ and the inner ring of the second bearing 3a, and further, the bolt portion 6a of the shaft 6 １ the body 2a of the first cup 2a ０ Bottom 2a ０１ The hole of the main body 2a ０ from the bottom side of the main body 2a ０ The first cup 2a is fixed to the end of the shaft 6 by screwing the inner surface of the nut 16a (the female thread of the nut 16a) into the nut 16a. ０１ and a bolt portion 6a formed at one end of the shaft 6. １ and neck portion 6a ２ A shoulder between the two and a spacer 12a may be provided between the two.

[0062] 8A, 8B, and 8C show the structure of the spacer 12a. FIG. 8A shows the components of the spacer 12a in an exploded perspective view from above. FIG. 8B shows the components of the spacer 12a in an exploded perspective view from below. FIG. 8C shows the structure of the spacer 12a in an exploded perspective view and a side view. The spacer 12a is a large-diameter spacer 12a. １ and small diameter spacer 12a ２ It has.

[0063] Large diameter spacer 12a １ is the main body 2a of the first cup 2a ０ a ring-shaped main body portion abutting on the bottom surface of the １０ and has a convex shape in side view. １０ When viewed from above, the top 12a has a rounded rectangular shape consisting of two parallel lines of equal length and two semicircles. １０ The large diameter spacer 12a can be gripped. １ The small diameter spacer 12a is attached to the underside of the ２ The protrusion 12a has an inner diameter equal to or substantially equal to the outer diameter of the １１ The large diameter spacer 12a is formed. １ is the main body 2a of the first cup 2a ０ It can be made of a material that is harder and softer than the shaft 6, such as aluminum, and can be made large in diameter but lightweight.

[0064] Small diameter spacer 12a ２ is the large diameter spacer 12a １ The small diameter spacer 12a is a ring-shaped member having a smaller diameter than the small diameter spacer 12a. ２ is the large diameter spacer 12a １ The small diameter spacer 12a can be formed by using a material that is harder but softer than the shaft 6, such as stainless steel or titanium, which has a higher hardness than aluminum. ２ The large diameter spacer 12a １ The protrusion 12a on the underside of １１ Insert the large diameter spacer 12a １ and the large diameter spacer 12a １and small diameter spacer 12a ２ By overlapping the spacers 12a in the longitudinal direction of the shaft 6 (the direction of the reference axis L), the spacers 12a are arranged such that the small diameter top portions 12a are respectively positioned on the upper and lower surfaces of the large diameter ring-shaped main body portion. １０ and small diameter spacer 12a ２ The small diameter spacer 12a has a protruding shape. ２ The large diameter spacer 12a １ The protrusion 12a on the underside of １１ The small diameter spacer 12a is press-fitted into the ２ and the upper surface of the large diameter spacer 12a １ The spacer 12a may be integrated with the lower surface of the spacer 12b.

[0065] The large-diameter spacer 12a of the spacer 12a configured as described above １ , the top 12a １０ the bottom 2a of the first cup 2a ０１ 6, the large-diameter main body portion is fitted into the recess provided at the center of the bottom 2a. ０１ The force that can be transmitted from the peripheral cover 4a to the bottom 2a of the first cup 2a is ０１ The small diameter spacers 12a are dispersed over a wide area. ２ The bolt portion 6a formed at one end of the shaft 6 １ and neck portion 6a ２ , and it is possible for the shaft 6 to abut only on the shoulder portion of the shaft 6 and the inner ring of the bearing 3a.

[0066] In addition, the large diameter spacer 12a １ and small diameter spacer 12a ２ the bottom 2a of the first cup 2a that each of them abuts against. ０１ The material for each of the first cup 2a and the shaft 6 or the bearing 3a may be selected depending on the material of the first cup 2a. ０ , large diameter spacer 12a １ , small diameter spacer 12a ２ By selecting the materials for the shaft 6 so that the hardness increases in this order, the spacer 12a, especially the small diameter spacer 12a ２ Deformation of the surface can be prevented.

[0067] In this way, the two bearings 3a are inserted through the first cover 14a (the hole 4a of the peripheral cover 4a). ０ ) and shaft 6 (neck portion 6a ２ ) so as to be sandwiched between them in contact with each other, and the first cover 14a is attached to the shaft 6 so as to be rotatable (independently of the rotation of the shaft 6). Here, the two bearings 3a and the hole 4a of the peripheral cover 4a ０ By interposing a buffer member 13a between the inner surface of the covers 14a and 14b, the impact transmitted to the bearings 3a and 3b and further to the shaft 6 via the covers 14a and 14b when the rotating toy 10d is dropped or hit on the ground or the like is buffered, and the covers 14a and 14b (peripheral covers 4a and 4b) are tilted relative to the shaft 6, and the top surfaces of these frustums come into contact with the accelerator 8, thereby dispersing the impact and preventing malfunctions such as malfunction of the bearings 3a and 3b and the accelerator 8.

[0068] The two bearings 3b are inserted into the buffer members 13b in the same manner as the two bearings 3a, and are inserted into the holes 4b of the peripheral cover 4b. ０ from one side (upper in the drawing) and the other side (lower in the drawing) to form the stepped portion 4a １ The hole 4b ０ The shaft 6 is passed through the inner ring of the bearing 3b, and the bolt portion 6b of the shaft 6 is １ the body 2b of the first cup 2b ０ Bottom 2b ０１ The hole of the main body 2b ０ From the bottom side of the main body 2b ０ The second cup 2b is fixed to the end of the shaft 6 by screwing the inner surface of the buffer member 13b into the nut 16b (female thread of the nut 16b). ０ and the hole 4b ０ The bearing 3b may be inserted into a buffer member 13b fixed inside the bearing 3b. ３ A ring-shaped spacer 5b may be disposed between the bottom 2b of the second cup 2b. The spacer 5b may be made of metal or plastic. ０１ and a bolt portion 6b formed at one end of the shaft 6. １ and neck portion 6b ２A spacer 12b may be provided between the shoulder portion between the spacer 12a and the large diameter spacer 12b formed in the same manner as the spacer 12a. １ and small diameter spacer 12b ２ Includes.

[0069] The rotating toy 10d can be assembled as follows: First, the accelerator 8 is attached to the body 6c of the shaft 6 via the one-way clutch 9, and the two rotary shaft bearings 7 are fitted into one and the other of the through-holes of the accelerator 8 so as to sandwich the one-way clutch 9 in the axial direction. Next, with the two bearings 3a inserted into the buffer member 13a, the bearings 7 are fitted into the holes 4a of the peripheral cover 4a. ０ The step portions 4a are fitted into the respective １ Or, the hole 4a ０ Similarly, with the two bearings 3b inserted into the buffer member 13b, the bearings 3a are inserted into the holes 4b of the peripheral cover 4b. ０ The step portions 4b are fitted into the respective １ Or, the hole 4b ０ Then, the bolt portion 6a of the shaft 6 is fixed to the shock absorber 13b. １ and neck portion 6a ２ The opening of the spacer 5a and the hole 4a of the peripheral cover 4a ０ through the bolt portion 6a １ The bolt 6b of the shaft 6 is fixed to the first cup 2a using a nut 16a. １ and neck portion 6b ２ the opening of the spacer 5b and the hole 4b of the peripheral cover 4b. ０ through the bolt part 6b １ The nut 16b is used to fix the second cup 2b to the second cup 2b. As a result, the peripheral cover 4a is fixed to the nut portion 2a of the first cup 2a via the two bearings 3a. １ and the shoulder 6a of the shaft 6 ３ The neck portion 6a of the shaft 6 is sandwiched between the ２ The peripheral cover 4b is attached to the nut portion 2b of the second cup 2b via the two bearings 3b.１ and the shoulder 6b of the shaft 6 ３ The neck portion 6b of the shaft 6 is sandwiched between the ２ Finally, the side covers 1a and 1b are attached to the peripheral covers 4a and 4b, respectively, to form the first and second covers 14a and 14b, which cover the entire outside of the first and second cups 2a and 2b.

[0070] In the rotating toy 10d assembled in this manner, when the control string is entangled with the accelerator 8 and the accelerator 8 is rotated in one direction due to the friction of the control string, rotational power is transmitted to the shaft 6 via the one-way clutch 9, causing the first and second cups 2a, 2b to rotate. At this time, the first and second covers 14a, 14b that cover the first and second cups 2a, 2b, respectively, spin freely, covering the first and second cups 2a, 2b, which are rotating without rotation (or with weak rotation). Because the first and second covers 14a, 14b are attached to the shaft 6 so as to be able to spin freely independently of the first and second cups 2a, 2b, the first and second cups 2a, 2b continue to rotate inside the first and second covers 14a, 14b even if the first and second covers 14a, 14b are grabbed with fingers or the like.

[0071] The rotating toy 10d according to the second embodiment has the same effects as the rotating toy 10 according to the first embodiment, and a detailed description thereof will be omitted.

[0072] Although the rotating toys 10, 10d according to the first and second embodiments are provided with the first and second covers 14a, 14b that cover the first and second cups 2a, 2b, respectively, they may instead be provided with only one of the first and second covers 14a, 14b. Also, one of the first and second covers 14a, 14b may be configured to rotate freely relative to the shaft 6 using a different mechanism.

[0073] In the rotating toys 10 and 10d according to the first and second embodiments, the bearings 3a and 3b are inserted through the first and second covers 14a and 14b (through the holes 4a of the peripheral covers 4a and 4b). ０ , 4b ０ ) and shaft 6 (neck portion 6a ２ , 6b ２) and the first and second covers 14a, 14b are arranged between the shaft 6 and the side surface (neck portion 6a) of the shaft 6 so as to be rotatable relative to the shaft 6 via the first and second covers 14a, 14b. ２ , 6b ２ However, instead, the first and second covers 14a, 14b may be rotatably attached to the first and second cups 2a, 2b. For example, in the rotating toy 10, the nuts 2a of the first and second cups 2a, 2b may be rotatably attached to the nuts 2a, 2b. １ , 2b １ and these are formed to be longer, and are connected to the hole portions 4a of the peripheral covers 4a and 4b. ０ , 4b ０ The bearings 3a and 3b are inserted through the inner rings of the bearings 3a and 3b fitted into the first and second covers 14a and 14b (through the holes 4a of the peripheral covers 4a and 4b). ０ , 4b ０ ) and the first and second cups 2a, 2b (nut portion 2a １ , 2b １ ) and the first and second covers 14a, 14b are rotatably attached to the first and second cups 2a, 2b via the covers 14a, 14b. This allows the first and second covers 14a, 14b to cover at least a part or the entire outside of the first and second cups 2a, 2b independently of the rotation of the first and second cups 2a, 2b fixed to one end of the shaft 6.

[0074] In the rotating toys 10 and 10d according to the first and second embodiments, the bearings 3a and 3b are inserted through the first and second covers 14a and 14b (through the holes 4a of the peripheral covers 4a and 4b). ０ , 4b ０ ) and shaft 6 (neck portion 6a ２ , 6b ２ ) and the first and second covers 14a, 14b are arranged between the shaft 6 and the side surface (neck portion 6a) of the shaft 6 so as to be rotatable relative to the shaft 6 via the first and second covers 14a, 14b. ２ , 6b ２ However, instead, the first and second covers 14a, 14b may be sandwiched between the axel 8 and the first and second cups 2a, 2b and rotatably attached to the shaft 6. For example, the inner diameter of the inner ring of the bearings 3a, 3b may be adjusted to the shaft 6 (the circumferential surface of the neck 6a ２ , 6b ２) or the diameter of the shaft 6 (neck 6a ２ , 6b ２ ) is made sufficiently smaller than the inner diameter of the inner rings of the bearings 3a and 3b to separate the inner rings of the bearings 3a and 3b from the side surface of the shaft 6, and the hole 4a of the peripheral cover 4a and 4b ０ , 4b ０ The inner rings of the bearings 3a and 3b fitted into the axel 8 (or the bearing 7 for the rotary shaft or the spacers 5a and 5b) are connected to the first and second cups 2a and 2b (nut portion 2a １ , 2b １ or bottom 2a ０１ , 2b ０１ ) and the bolt portion 6a of the shaft 6 １ , 6b １ Nut part 2a １ , 2b １ Alternatively, the first and second covers 14a, 14b may be rotatably attached to the shaft 6 via the first and second cups 2a, 2b by screwing onto nuts 16a, 16b and sandwiching them therebetween. This allows the first and second covers 14a, 14b to cover at least a part or the entire outside of the first and second cups 2a, 2b independently of the rotation of the first and second cups 2a, 2b fixed to one end of the shaft 6.

[0075] In the rotating toys 10, 10d according to the first and second embodiments, the first and second covers 14a, 14b have the peripheral covers 4a, 4b and the side covers 1a, 1b, respectively, but instead, they may have only the peripheral covers 4a, 4b. In other words, the concave surfaces of the first and second cups 2a, 2b may be open.

[0076] In the rotating toys 10, 10d according to the first and second embodiments, the first and second covers 14a, 14b are rotatably fixed to the shaft 6 using two bearings 3a, 3b, respectively. However, instead of this, the first and second covers 14a, 14b may be rotatably fixed to the shaft 6 using one bearing 3a, 3b, respectively.

[0077] 9 and 10 show a rotating toy 10d2 according to a modified example. Fig. 9 shows an exploded perspective view of components around the bearing of the rotating toy 10d2 according to the modified example. Fig. 10 shows a cross-sectional structure around the bearing 3a of the rotating toy 10d2 according to the modified example.

[0078] The peripheral cover 4a of the cover 14a is a portion that covers the peripheral surface of the first cup 2a, and the substantially truncated cone-shaped (or saucer-shaped) main body 2a included in the first cup 2a. ０ a hollow truncated cone (in this example, a substantially circular truncated cone) that covers the outer circumferential surface of the main body 2a ０ The peripheral cover 4a has a shape that connects a cylinder that covers the edge of the peripheral cover 4a and a hole 4a through which the shaft 6 passes. ０ Furthermore, a stepped portion 4a is formed on the inner surface of the lower portion of the groove, protruding inward and surrounding the groove. １ The hole 4a is formed. ０ In the internal space of the １ One side (upper side in the drawing) of the peripheral cover 4a forms a space for accommodating the bearing 3a. ０ The open disk-shaped cover member 4a ４ will be established.

[0079] 11A shows the configuration of the buffer member 13ad according to a modified example. The buffer member 13ad buffers the impact transmitted to the bearings 3a, 3b and further to the shaft 6 via the cover 14a when the rotating toy 10d2 is dropped or hit on the ground or the like, and disperses the impact by tilting the covers 14a, 14b (peripheral covers 4a, 4b) with respect to the shaft 6 and bringing the top surfaces of the frustums into contact with the accelerator 8. The buffer member 13ad is a member having a side surface 13a １ , bottom surface 13a ２ , and the top surface 13a ３ The side surface 13a １ The bottom surface 13a has a hollow cylindrical shape that covers the outer ring of the bearing 3a. ２ is the side surface 13a １ The top surface 13a is an annular plate member provided on one opening side (the lower side in the drawing) of the hollow cylindrical shape of the bearing 3a, and has an opening having an inner diameter smaller than the outer diameter of the outer ring of the bearing 3a and larger than the outer diameter of the inner ring. ３is the side surface 13a １ The side surface 13a is an annular plate member provided on the other opening side (upper side in the drawing) of the hollow cylindrical shape of the bearing 3a, and has an opening having an inner diameter smaller than the outer diameter of the outer ring of the bearing 3a and larger than the outer diameter of the inner ring. １ and bottom surface 13a ２ The top surface 13a can be integrally molded using rubber (especially elastomer). ３ The side 13a is made of rubber (especially elastomer). １ and bottom surface 13a ２ The other buffer member 13b also has side, bottom, and top surfaces formed in the same manner as the buffer member 13ad.

[0080] 11B to 11D show how the bearing 3a is attached to the peripheral cover 4a using the buffer member 13ad. First, as shown in FIG. 11B, the bearing 3a is attached to the bottom surface 13a of the buffer member 13ad. ２ The opening on the opposite side (upper side in the drawing) is １ As a result, the lower surface of the outer ring of the bearing 3a is inserted into the internal space of the bottom surface 13a. ２ The upper surface of the outer ring of the bearing 3a abuts against the side surface 13a. １ Furthermore, the top surface 13a ３ The cover member 4a ４ The top surface 13a is fitted into a recess (see FIG. 10) provided in the center of the bottom surface of the top surface 13a. ３ The lower surface of the cover member 4a ４ It is almost flush with the underside of the

[0081] Next, as shown in FIG. 11C, the side surface 13a １ The bearing 3ad inserted into the internal space of the peripheral cover 4a is inserted into the hole 4a ０ The step portion 4a is inserted from above in the drawing. １ As a result, the upper surface and side surface 13a of the bearing 3a are １ The upper surface of the side 13a is substantially flush with the upper surface of the peripheral cover 4a. １ and bottom surface 13a ２ The hole 4a of the peripheral cover 4a ０ and the hole 4a ０ Side 13a fixed in １A bearing 3a may be inserted in the spacer 3b.

[0082] Then, as shown in FIG. 11D, the cover member 4a ４ is disposed on the inner surface of the peripheral cover 4a, and the hole 4a ０ As a result, the top surface 13a ３ The edge of the side surface 13a １ The top surface 13a is supported on the ３ , side 13a １ , bottom surface 13a ２ The cushioning member 13ad that covers the outer ring of the bearing 3a is formed by the top surface 13a. ３ , side 13a １ , bottom surface 13a ２ respectively cover the upper surface, side surface, and lower surface of the outer ring of the bearing 3a. ０ The side surface 13a of the buffer member 13ad is １ The outer ring of the bearing 3a and the step portion 4a １ The bottom surface 13a of the buffer member 13ad is ２ The outer ring of the bearing 3a and the cover member 4a are arranged. ４ The top surface 13a of the buffer member 13ad is ３ will be distributed.

[0083] As described above, the bearing 3a is attached to the buffer member 13ad (side surface 13a １ ) in the hole 4a of the peripheral cover 4a. ０ 10) from one side (the upper side in FIG. 10) to the stepped portion 4a １ or the hole 4a of the peripheral cover 4a. ０ The buffer member 13ad (side surface 13a １ and bottom surface 13a ２ ) is inserted into the hole 4a ０ Side 13a fixed in １ Insert the bearing 3a into the top surface 13a ３ The cover member 4a is provided with ４ is disposed on the inner surface of the peripheral cover 4a, and the hole 4a ０ Furthermore, the shaft 6 is sealed by the spacer 5a. １ through the hole 4a ０ and the inner ring of the bearing 3a, and the body 6c and neck 6a of the shaft 6２ Shoulder 6a between ３ Spacer 5a １ Then, the shaft 6 is fixed to the inner ring via another spacer 5a. ２ and the cover member 4a ４ the bolt portion 6a of the shaft 6 through the opening １ the body 2a of the first cup 2a ０ Bottom 2a ０１ The hole of the main body 2a ０ from the bottom side of the main body 2a ０ The inner surface of the first cup 2a is screwed onto the nut 16a (female thread). ０１ and a bolt portion 6a formed at one end of the shaft 6. １ and neck portion 6a ２ A shoulder (or spacer 5a) may be provided between the two spacers 5a and 12a. １ , 5a ２ As an example, the bearing 3a and the shoulder 6a of the shaft 6 have a cylindrical shape. ３ the space between the bearing 3a and the bottom 2a of the first cup 2a ０１ Alternatively, the heights of the bearings 3a and 3b are determined in accordance with the space between the bearings 3a and 3b. ２ As a result, the outer ring of the bearing 3a is inserted into the hole 4a of the peripheral cover 4a (first cover 14a) via the buffer member 13ad. ０ Inner step 4a １ and the cover member 4a ４ The inner ring of the bearing 3a is sandwiched between the two spacers 5a. １ , 5a ２ and the bottom 2a of the first cup 2a ０１ The shoulder 6a of the shaft 6 is ３ and bolt portion 6a １ It is sandwiched between the upper nuts 16a.

[0084] Bearing 3a and hole 4a of peripheral cover 4a ０By interposing a buffer member 13ad between the cover 14a and the inner surface of the cover 14a, the impact transmitted to the bearing 3a and further to the shaft 6 when the rotating toy 10d2 is dropped or hit on the ground or the like is buffered, and the covers 14a, 14b (circumferential covers 4a, 4b) are tilted relative to the shaft 6, and the top surfaces of these frustums come into contact with the accelerator 8, thereby dispersing the impact and preventing malfunctions such as malfunction of the bearing 3a and the accelerator 8.

[0085] The other bearing 3b is also covered by another buffer member configured similarly to the buffer member 13ad, and the outer ring of the bearing 3b is inserted into the hole 4b of the peripheral cover 4b (first cover 14b) via the buffer member 13ad. ０ Inner step 4b １ and the cover member 4b ４ The inner ring of the bearing 3b is sandwiched between the two spacers 5a. １ , 5a ２ and the bottom 2b of the first cup 2b. ０１ The shoulder 6b of the shaft 6 is ３ and bolt portion 6b １ It is sandwiched between the upper nuts 16b.

[0086] Although the present invention has been described above using embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications and improvements can be made to the above embodiments. It is clear from the claims that such modifications and improvements can also be included within the technical scope of the present invention.

[0087] It should be noted that the order of execution of each process, such as operations, procedures, steps, and stages, in the devices, systems, programs, and methods shown in the claims, specifications, and drawings is not specifically stated as "before," "prior to," etc., and that the processes can be performed in any order unless the output of a previous process is used in a subsequent process. Even if the operational flow in the claims, specifications, and drawings is described using "first," "next," etc. for convenience, this does not mean that the processes must be performed in this order.

[0088] 1a, 1b...side cover, 1a １ , 1b １ ...Buffer material, 1a ２ , 1b ２ ...Concave surface, 1a ３ , 1b ３ ... hook-and-loop fastener, 2a, 2b... cups (first and second cups), 2a ０ , 2b ０ ...Main body, 2a ０１ , 2b ０１ ...bottom, 2a １ , 2b １ ...nut portion, 2a ２ , 2b ２ ...thick part, 2a ３ , 2b ３ ...weight, 3a, 3b...bearing, 4a, 4b...peripheral cover, 4a ０ , 4b ０ ...hole, 4a １ , 4b １ ...Step portion, 4a ３ , 4b ３ ... Velcro, 4a ４ ...Lid member, 5a, 5a １ , 5a ２ , 5b...spacer, 6...shaft, 6a １ , 6b １ ...Bolt portion, 6a ２ , 6b ２ ...Neck, 6a ３ , 6b ３ ...shoulder part, 6c...body part, 7...bearing for rotating shaft, 8...accelerator, 9...one-way clutch, 10, 10d, 10d2...rotating toy, 12a, 12b...spacer, 12a １ , 12b １ ...Large diameter spacer, 12a １０ ...Top, 12a １１ ...projection, 12a ２ , 12b ２ ...small diameter spacers, 13a, 13ad, 13b...buffer members, 13a １ , 13b １ ...side, 13a ２ , 13b ２ ...bottom, 13a ３ ...top surface, 14a, 14b...cover, 15a, 15b...washer, 16a, 16b...nut, L...reference axis.

Claims

1. A rotating toy comprising: a shaft provided with an accelerator; a first cup and a second cup fixed to one end and the other end of the shaft, respectively; and a first cover rotatably attached to the shaft between the accelerator and the first cup, and covering at least a portion of the first cup.

2. The spinning toy of claim 1, further comprising a first bearing disposed between said first cover and said shaft for rotatably mounting said first cover to said shaft.

3. A rotating toy as described in claim 2, wherein the shaft has a small-diameter neck on one side of the body where the accelerator is provided, and the first bearing is attached to the neck by engaging an inner ring with a shoulder between the body and the neck.

4. The spinning toy according to claim 3, further comprising a first spacer disposed between the inner ring of the first bearing and the shoulder.

5. The spinning toy of claim 3, further comprising a second spacer disposed between the first cup and another shoulder between the bolt portion formed at one end of the shaft and the neck portion.

6. A rotating toy according to claim 5, wherein the second spacer is formed by overlapping a large diameter spacer abutting against the first cup and a small diameter spacer abutting against the other shoulder portion in the longitudinal direction of the shaft.

7. A rotating toy as described in claim 2, wherein the first cover has a hole through which the shaft passes, the hole having a step formed on the inner surface that protrudes inward and surrounds the hole, and the first bearing is fitted into the hole from one side onto the step.

8. A rotating toy as described in claim 7, further comprising a first buffer member having a hollow cylindrical side surface covering the outer ring of the first bearing and disposed between the outer ring and the hole.

9. A rotating toy as described in claim 8, wherein the first buffer member includes a bottom surface disposed between the outer ring and the step portion on one opening side of the hollow cylindrical shape.

10. A rotating toy as described in claim 9, wherein the first buffer member includes a top surface that abuts against the outer ring on the other opening side of the hollow cylindrical shape.

11. The rotating toy according to claim 7, further comprising a second bearing disposed between the first cover and the shaft to rotatably mount the first cover to the shaft, the second bearing being fitted onto the step portion from the other side of the hole portion.

12. The spinning toy according to claim 11, further comprising a second buffer member having a hollow cylindrical shape that covers the outer ring of the first bearing and is disposed between the outer ring and the hole.

13. A rotating toy as described in claim 1, wherein the first cup has a saucer shape with its bottom facing one end of the shaft, and the first cover includes a peripheral cover having a shape formed by connecting a hollow frustum that covers the outer periphery of the saucer shape and a cylinder that covers the edge of the saucer shape.

14. The spinning toy according to claim 1, wherein the first cover has a peripheral cover that covers the peripheral surface of the first cup and a side cover that covers the side surface of the first cup.

15. The spinning toy according to claim 14, wherein the side cover has an annular cushioning material.

16. The spinning toy according to claim 14, wherein the side cover has a concave surface facing the first cup.

17. The spinning toy according to claim 1, wherein the first cup has an overall shape of a hollow, generally truncated cone, with a thickened portion at the edge of the generally truncated cone.

18. The spinning toy of claim 1, wherein the first cup has a body having an overall shape of a hollow, generally truncated cone, and a weight attached to the edge of the body.

19. The spinning toy according to claim 1, wherein the shaft fixes the first cup by threading a bolt portion formed at one end of the shaft into a nut portion formed at the center of the first cup.

20. The spinning toy described in claim 1, wherein the shaft secures the first cup by passing the bolt portion formed at one end through a hole formed in the center of the first cup from one side of the first cup and screwing it onto a nut on the other side of the first cup.

21. The spinning toy of claim 1, further comprising: the axel; and a one-way clutch that rotatably mounts the axel to the shaft in one direction.

22. The spinning toy of claim 1, further comprising a second cover rotatably mounted on the shaft between the axel and the second cup and covering at least a portion of the second cup.

23. A spinning toy according to any one of claims 1 to 22, wherein the spinning toy is a diabolo.