Toy

Abstract

To provide a toy that can run without winding a screw.SOLUTION: To make a toy 1 to include: a cylindrical body member 10; a weight member 20 which, in the inside of the body member 10, is rotatably supported with the shaft core of the body member 10 made as the center and which has the gravity eccentric for the shaft center; and a rubber band 30 as an elastic member in which both ends are attached to the body member 10, in which a part apart from the end attached to the body member 10 is installed in a weight member 20, and in which, with the weight member 20 relatively rotates in a prescribed direction for the body member 10, a rotative energetic force is generated in a direction opposite from the rotation direction of the weight member 20.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to toys. [Background technology]

[0002] There are known toys that use a rubber or spiral spring wound by a screw as a power source, and that move when the screw is wound and then released. However, this type of toy requires the screw to be wound in order to move. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above, an object of the present invention is to provide a toy that can be run without winding a screw. [Means for solving the problem]

[0004] In order to solve the above problems, the toy according to the present invention comprises: "A cylindrical main body member, a weight member supported inside the main body member so as to be rotatable about an axis of the main body member, the weight member having a center of gravity eccentric with respect to the axis; an elastic member having at least one end attached to the body member and a portion separated from the end attached to the body member attached to the weight member, which generates a rotational biasing force in a direction opposite to the rotational direction of the weight member when the weight member rotates relative to the body member in a predetermined direction" The present invention is characterized in that it comprises:

[0005] Here, the tubular "main body member" may be cylindrical or polygonal. In the case of a polygonal tube, it is preferable to use a polygonal tube having pentagons or more, and if the corners are rounded, it will be easier to roll.

[0006] Furthermore, examples of the "weight member" include "one having an axis support portion rotatably supported by the main body member and a weight portion attached to the axis support portion" and "one having an axis support portion rotatably supported by the main body member, an arm portion extending from the axis support portion in a direction perpendicular to the axis, and a weight portion attached to the tip of the arm portion."

[0007] Furthermore, examples of the "elastic member" include a rubber cord, a spiral spring, a torsion bar (torsion rubber, torsion spring), and a coil spring.

[0008] When the toy of this configuration is rolled on a flat surface such as a floor or a table, the center of gravity of the weight member rotatably provided inside the main body member is eccentric with respect to the axis of the main body member, so that the center of gravity of the weight member always tends to remain below the axis of the main body member, and the weight member does not rotate together with the main body member, but rotates relative to the main body member. As a result, a rotational biasing force is generated in the elastic member that rotates in the opposite direction to the direction of rolling, and this rotational biasing force accumulates while the main body member is rolling. Then, when the rolling of the main body member stops, the weight member tends to rotate due to the rotational biasing force accumulated in the elastic member, but since the center of gravity of the weight member is eccentric with respect to the axis of the main body member, the center of gravity tends to remain below the axis of the main body member, and the weight member does not rotate. As a result, the rotational biasing force accumulated in the elastic member acts to rotate the main body member relative to the weight member, and the main body member rotates in the opposite direction to the initial rolling direction instead of the weight member, causing the toy to roll back.

[0009] Alternatively, when a toy (main body member) having this configuration is held in the hand and swung so that the internal weight member rotates in a predetermined direction, the weight member rotates relative to the main body member, and a rotational biasing force can be accumulated in the elastic member. Then, when the toy is placed on the floor in this state, for the same reason as above, the rotational biasing force accumulated in the elastic member rotates the main body member, causing the toy to roll. At this time, the accumulated rotational biasing force acts to rotate the weight member in the opposite direction to the direction in which it was rotated manually, and therefore acts on the main body member to rotate in the same direction as the direction in which it was rotated manually, causing the toy to roll while rotating the main body member in that direction.

[0010] Thus, according to the toy of the present configuration, unlike conventional toys, a rotational biasing force can be accumulated in the elastic member without winding a screw, and the main body member can be rotated and rolled by the accumulated rotational biasing force. It is also possible to provide a toy that returns to its original position when rolled on the floor, etc.

[0011] In addition to the above configuration, the toy according to the present invention further comprises: "The weight member is a bearing part rotatably supported by the main body member; an arm portion extending from the pivot support portion in a direction perpendicular to the axis; A weight portion provided at the tip of the arm portion; The present invention may be characterized in that it has the following features.

[0012] According to this configuration, since the weight member has a weight portion at the tip of the arm extending from the axial support portion, the center of gravity of the weight member can be reliably offset relative to the axial core of the main body member, thereby realizing a toy that has the above-mentioned functional effects.

[0013] Furthermore, the toy according to the present invention has the following features in addition to the above: "The elastic member is It is a rubber band or a spiral spring." This may be a feature.

[0014] In this configuration, the elastic member is a rubber cord or a spiral spring. When using a rubber cord, one end may be attached to the main body member and the other end to the weight member, or both ends may be attached to the main body member and an intermediate portion may be attached to the weight member. The rubber cord may be endless, such as a rubber band, in which case the end is the folded-back portion of the endless rubber cord when it is made into a single string. When using a spiral spring, one end is attached to the main body member and the other end is attached to the weight member. By attaching it in this manner, a toy that achieves the above-mentioned function and effect can be obtained. Effect of the Invention

[0015] As described above, the effect of the present invention is to provide a toy that can be run without winding the screw. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view of a toy according to a first embodiment; [Diagram 2] 2A is a schematic cross-sectional view of the toy of FIG. 1 cut vertically along the axis of a main body member, and FIG. 2B is a cross-sectional view taken along line A-A in FIG. [Diagram 3] 11 is a cross-sectional view showing a toy according to a second embodiment, cut vertically along the axis of a main body member. FIG. [Figure 4] FIG. 11A is a cross-sectional view showing a toy according to a third embodiment cut vertically along the axis of a main body member, and FIG. 11B is a cross-sectional view taken along line A-A in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, toys 1, 1A, and 1B of specific embodiments will be described with reference to the drawings. First, a toy 1 of a first embodiment will be described in detail with reference to Figs. 1 and 2. The toy 1 can be played with by rolling it. The toy 1 includes a cylindrical main body member 10, a weight member 20 supported rotatably around the axis of the main body member 10, an endless rubber cord (rubber band 30) as an elastic member that generates a rotational biasing force in the opposite direction to the rotational direction of the weight member 20 when the weight member 20 rotates relative to the main body member 10 in a predetermined direction, and a rod-shaped hook member 40 that attaches the rubber band 30 to the main body member 10. Hereinafter, the direction in which the axis of the main body member 10 extends is referred to as the axial direction.

[0018] The main body member 10 includes a cylindrical main body portion 11 and a pair of side plate portions 12 attached to both ends of the main body portion 11 and rotatably supporting the weight member 20. The pair of side plate portions 12 are attached to the main body portion 11 so as to close an axial opening of the main body portion 11. In addition, at least one of the pair of side plate portions 12 is detachably attached to the main body portion 11.

[0019] The side plate portion 12 has a disk-shaped side plate main body 12a whose outer diameter matches the inner diameter of the main body portion 11, a cylindrical shaft portion 12b protruding from the center of the inner surface of the side plate main body 12a, a through hole 12c that axially penetrates the side plate main body 12a and the shaft portion 12b at the center of the side plate main body 12a, and a plurality of protrusions 12d protruding from the outer surface of the side plate main body 12a.

[0020] The plurality of protrusions 12d are provided four per side plate portion 12 (side plate body 12a). The four protrusions 12d are grouped into pairs, and a pair (two pieces) of protrusions 12d are provided at a symmetrical position with respect to an imaginary line passing through the center of the side plate body 12a, at a position away from the center of the outer surface of the side plate body 12a. The remaining pair of protrusions 12d is provided at a position on the opposite side, point-symmetrical with respect to the pair of protrusions 12d with respect to the center of the side plate body 12a. Each pair of protrusions 12d is provided at an interval that allows the insertion of a locking member 40.

[0021] The base end side of the weight member 20 is rotatably supported by the main body member 10, and the weight member 20 has an arm portion 21 extending in a direction perpendicular to the axis of the main body member 10 (main body portion 11), a weight portion 22 provided at the tip of the arm portion 21, and an attachment portion 23 provided on the weight portion 22 and attached to the rubber band 30. The weight member 20 has a center of gravity that is away from the axis of the main body member 10 (eccentric). The weight member 20 is also heavier than the main body member 10.

[0022] A pair of arms 21 are provided spaced apart in the axial direction, and a bearing hole 21a is provided at the base end of each arm, into which shaft 12b is rotatably inserted. This bearing hole 21a corresponds to the shaft support of the present invention. Weight 22 is provided so as to span the respective tips of the pair of arms 21. Weight 22 is located near the inner circumferential surface of main body 11. Mounting portion 23 extends in a rod shape from the center of weight 22 in the axial direction through the axis of main body member 10 to the opposite side.

[0023] In this toy 1, the weight member 20 is rotatably supported inside the main body member 10 by inserting the shafts 12b extending inward from each of the pair of side plate parts 12 into the bearing holes 21a of the pair of arms 21 of the weight member 20. In addition, both ends of the rubber band 30 are attached to each of the pair of side plate parts 12 in a state of being pulled in the axial direction at the position of the axis of the main body member 10. In addition, the rod-shaped attachment part 23 passes through the ring of the rubber band 30 at the center part in the axial direction. In other words, when the folded part when the endless rubber band 30 is made into a single string is taken as both ends, both ends are attached to the main body member 10, and a part away from the end attached to the main body member 10 (here, the center part in the axial direction) is attached to the weight member 20. When replacing the rubber band 30, the side plate parts 12, which are detachably attached, are removed from the main body part 11 and replaced.

[0024] The folded-back portion (end portion) of the rubber band 30 protrudes outward beyond the side plate portion 12 through the through-hole 12c of the side plate portion 12, and a rod-shaped hook member 40 is inserted through the rubber band 30. In other words, the rubber band 30 is folded back while being hooked to the hook member 40 on the outer side of each of the pair of side plate portions 12, and any attempt to reduce its axial length is prevented by the side plate portion 12 (side plate main body 12a) and the hook member 40.

[0025] The hook member 40 has both ends inserted between a pair of protrusions 12d on the outer surface of the side plate main body 12a, and does not rotate around the axis relative to the side plate portion 12 (main body member 10). The hook member 40 is pulled toward the side plate portion 12 by the tension (biasing force) of the rubber band 30, and therefore does not separate from the side plate portion 12 (side plate main body 12a).

[0026] Next, the operation of the toy 1 configured as above will be described. When the toy 1 is rolled on the floor or the like, the center of gravity of the weight member 20, which is rotatably provided inside the main body member 10, is eccentric with respect to the axis of the main body member 10, so that the center of gravity of the weight member 20 always tends to stay below the axis of the main body member 10. When the main body member 10 rotates, the rotation is transmitted to the weight member 20 via the rubber band 30, but since the weight member 20 is heavier than the main body member 10, the weight member 20 tries to maintain the same position as above against the elastic force of the rubber band 30. For this reason, the weight member 20 does not rotate together with the main body member 10, but rotates relative to the main body member 10.

[0027] When weight member 20 rotates relative to main body member 10, both ends of rubber band 30 that are installed in the axial direction rotate together with main body member 10, but the central portion of rubber band 30 in the axial direction does not rotate together with main body member 10 because it is attached to weight member 20 by attachment portion 23. As a result, the portion of rubber band 30 between the central portion and the end portion in the axial direction is twisted, and this twist generates a rotational biasing force that rotates main body member 10 in the opposite direction to the direction in which it is rolled, and this rotational biasing force accumulates in rubber band 30 while main body member 10 is rolling. The rotational biasing force accumulated in rubber band 30 also acts as a braking force against the rolling of main body member 10, so that the rolling speed gradually decreases due to this braking force, and the rolling of toy 1 stops.

[0028] Then, when the toy 1 stops rolling, the weight member 20 tries to rotate due to the rotational biasing force accumulated in the rubber band 30, but because the center of gravity of the weight member 20 is eccentric with respect to the axis of the main body member 10, the position of the center of gravity tries to remain below the axis of the main body member 10, and the weight member 20 does not rotate. Therefore, the rotational biasing force accumulated in the rubber band 30 acts to rotate the main body member 10 relative to the weight member 20, and the main body member 10 rotates in the opposite direction to the initial rolling direction instead of the weight member 20. As a result, the toy 1 rolls back.

[0029] Alternatively, when the toy 1 (main body member 10) is held in the hand and swung so that the internal weight member 20 rotates in a predetermined direction, the weight member 20 rotates relative to the main body member 10, twisting the rubber band 30 and accumulating a rotational biasing force in the rubber band 30. Then, when the toy 1 is placed on a flat surface such as a floor or a table in this state, for the same reason as above, the rotational biasing force accumulated in the rubber band 30 rotates the main body member 10 and the toy 1 rolls. At this time, the accumulated rotational biasing force acts to rotate the weight member 20 in the opposite direction to the direction in which the weight member 20 was rotated by hand, and therefore acts on the main body member 10 to rotate in the same direction as the direction in which the weight member 20 was rotated by hand, and the toy 1 rolls as the main body member 10 rotates in that direction.

[0030] Thus, according to the toy 1 of the present embodiment, unlike conventional toys, it is possible to accumulate a rotational biasing force in the rubber band 30 as an elastic member without winding a screw, and the accumulated rotational biasing force can rotate and roll the main body member 10. It is also possible to provide a toy 1 that returns to its original position when rolled on the floor or the like.

[0031] Next, a toy 1A of a second embodiment will be described in detail with reference to Fig. 3. The toy 1A of the second embodiment differs from the toy 1 of the first embodiment in the configuration of a part of the main body member 10 and the weight member 20. In the following, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0032] The main body member 10 of the toy 1A has a cylindrical main body portion 11, a side plate portion 12 attached to one end of the main body portion 11, and a second side plate portion 13 attached to the end of the main body portion 11 opposite to the side plate portion 12. The second side plate portion 13 has a disk-shaped side plate main body 13a whose outer diameter matches the inner diameter of the main body portion 11, and a cylindrical shaft portion 13b protruding from the center of the inner surface of the side plate main body 13a. At least one of the side plate portion 12 and the second side plate portion 13 is detachably attached to the main body portion 11.

[0033] The weight member 20 of the toy 1A has a pair of arms 21 spaced apart in the axial direction, a weight 22 bridged between the tips of the pair of arms 21, an extension piece 24 extending from one of the arms 21, and a hook 25 provided near the tip of the extension piece 24 to hook a rubber band 30. The extension piece 24 protrudes in the axial direction from the surface of the arm 21 facing the other side, bends toward the opposite side from the weight 22 (the base end side of the arm 21), and extends parallel to the arm 21 to the same position as the base end of the arm 21. The hook 25 is provided in the extension piece 24 at a position coaxial with the bearing hole 21a of the arm 21.

[0034] In the assembled state of the toy 1A, the shaft portion 13b of the second side plate portion 13 is inserted into the bearing hole 21a of the arm portion 21 from which the extension piece 24 extends, and the shaft portion 12b of the side plate portion 12 is inserted into the bearing hole 21a of the opposite arm portion 21 after passing through a plurality of (three in this case) washers 41. On the side plate portion 12 side, one end of the rubber band 30 is attached via the hook member 40 in the same configuration as the toy 1, and the opposite end of the rubber band 30 is hooked on the hook 25. As a result, one end of the rubber band 30 is attached to the main body member 10, and a portion (the other end in this case) away from the end attached to the main body member 10 is attached to the weight member 20. The rubber band 30 is stretched between the side plate portion 12 and the hook 25 in a state of being pulled in the axial direction. As a result, the arm portion 21 close to the side plate portion 12 is pressed toward the side plate portion 12 by the biasing force of the rubber band 30.

[0035] In this toy 1A, multiple washers 41 are inserted between the side plate 12 (side plate main body 12a) and the arm 21 in the shaft 12b, so that the sliding resistance caused by the rotation of the arm 21 on the side plate 12 side is reduced compared to a case where the arm 21 is in direct contact with the side plate 12 without such washers 41, and the weight member 20 can easily rotate relative to the main body member 10. In addition, because multiple washers 41 are provided, the sliding resistance is also reduced by slippage between the washers 41.

[0036] The toy 1A of this embodiment can also achieve the same effects as the toy 1 of the first embodiment.

[0037] Next, a toy 1B of a third embodiment will be described in detail with reference to Fig. 4. In the following, the same components as those of the above-mentioned toys 1 and 1A are given the same reference numerals, and detailed description thereof will be omitted. The toy 1B of the third embodiment has a cylindrical main body member 10, a weight member 20 supported rotatably about the axis of the main body member 10, and a spiral spring 31 as an elastic member that generates a rotational biasing force in the opposite direction to the rotational direction of the weight member 20 when the weight member 20 rotates relative to the main body member 10 in a predetermined direction.

[0038] The main body member 10 of the toy 1B includes a cylindrical main body portion 11 and a pair of third side plate portions 14 attached to both ends of the main body portion 11 and rotatably supporting the weight member 20. The main body portion 11 has an attachment portion 11a protruding inward at the center in the axial direction. The pair of third side plate portions 14 are attached to the main body portion 11 so as to close the axial opening of the main body portion 11. At least one of the pair of third side plate portions 14 is detachably attached to the main body portion 11. The third side plate portion 14 has a disk-shaped side plate main body 14a whose outer diameter is the same as the inner diameter of the main body portion 11, and a bearing portion 14b provided so as to protrude from the center of the inner surface of the side plate main body 14a. The bearing portion 14b is recessed in a conical shape at the center of the surface opposite to the side plate main body 14a.

[0039] The toy 1B has a pair of weight members 20, and the pair of weight members 20 share a rod-shaped shaft portion 26 extending in the axial direction of the main body portion 11. Each of the pair of weight members 20 has a pair of arms 27 extending from the shaft portion 26 in a direction perpendicular to the axial direction and spaced apart in the axial direction, and a weight portion 22 that is bridged on the tips of the pair of arms 27. The shaft portion 26 has conical shaft support portions 26a provided at both ends and a mounting portion 26b provided in the center in the axial direction. The shaft support portions 26a at both ends of the shaft portion 26 are inserted into the conically recessed portions of the bearing portions 14b of the pair of third side plate portions 14. As a result, the shaft portion 26 is supported rotatably around the shaft core of the main body portion 11. The mounting portion 26b of the shaft portion 26 is an elongated hole that is long in the axial direction. The pair of weight members 20 are provided at positions with the same rotation angle about the axis of the main body portion 11, and are provided symmetrically with the attachment portion 26b therebetween.

[0040] The power spring 31 of the toy 1B is a strip-shaped plate material formed into a spiral shape. The power spring 31 has a central end inserted into a long hole as the attachment portion 26b in the shaft portion 26 of the weight member 20 and an outer peripheral end attached to the attachment portion 11a of the main body portion 11 in the main body member 10. As a result, one end of the power spring 31 is attached to the main body member 10, and a portion (here, the other end) away from the end attached to the main body member 10 is attached to the weight member 20. In this toy 1B, as shown in FIG. 4(b), when no rotational biasing force is generated, there is a gap between the plates constituting the spiral in the power spring 31, so that the weight member 20 can rotate relative to the main body member 10 in any direction and can accumulate a rotational biasing force in any direction.

[0041] The toy 1B of this embodiment can also achieve the same effects as the toy 1 and the toy 1A of the above-mentioned embodiments.

[0042] The present invention has been described above with reference to preferred embodiments, but the present invention is not limited to the above embodiments, and various improvements and design changes are possible without departing from the spirit of the present invention.

[0043] For example, in the above embodiment, the outer diameter of the side plate portions 12 (second side plate portion 13, third side plate portion 14) in the main body member 10 is smaller than the outer diameter of the main body portion 11, but this is not limited thereto, and the outer diameter of the side plate portions 12 (second side plate portion 13, third side plate portion 14) may be larger than the outer diameter of the main body portion 11. This allows the side plate portions 12 to look like wheels.

[0044] In the above embodiment, the main body member 10 is cylindrical, but the present invention is not limited to this, and the main body member may be polygonal. In this case, it is preferable to use a polygonal cylindrical shape having pentagons or more, and if the corners are rounded, the main body member will roll more easily.

[0045] Furthermore, in the above embodiment, weight member 20 is provided with weight portion 22 at the tip of arm portions 21, 27 extending from the axial center portion of main body member 10 in a direction perpendicular to the axial direction, but this is not limited to this, and a weight member having a weight portion provided at a portion pivotally supported by main body member 10 may be used. Also, weight member 20 is provided with weight portion 22 attached by a pair of arm portions 21, 27, but this is not limited to this, and a weight portion attached to only one arm may be used.

[0046] In the above embodiment, toy 1 and toy 1A are shown with one rubber band 30 attached, but this is not limited to this and multiple rubber bands 30 may be attached. In addition, an endless rubber band 30 is shown as the rubber string, but this is not limited to this and a rubber string with ends may be used.

[0047] In the above embodiment, the power spring 31 of the toy 1B is shown to be capable of accumulating a rotational force in either direction by having a gap between the plates when no rotational force is being generated, but this is not limiting and the power spring may be capable of accumulating a rotational force in only one direction without a gap between the plates when no rotational force is being generated. In this case, the rolling distance can be made longer compared to when there is a gap between the plates.

[0048] In the above embodiment, the rubber string 30 and the spiral spring 31 are shown as elastic members, but the present invention is not limited to this and may be a torsion bar (torsion rubber, torsion spring), a coil spring, or the like. [Explanation of symbols]

[0049] 1 toy 1A Toy 1B Toys 10 Body material 20 Weight member 21 Arm 21a Bearing hole (shaft support) 22 Weight 26 Shaft 26a Axial support (Axis support) 27 Arm 30 Rubber bands (elastic materials, rubber cords) 31 Power spring (elastic member)

Claims

1. A cylindrical main body member; a weight member supported inside the main body member so as to be rotatable about an axis of the main body member, the weight member having a center of gravity eccentric with respect to the axis; an elastic member having at least one end attached to the body member and a portion separated from the end attached to the body member attached to the weight member, the elastic member generating a rotational biasing force in a direction opposite to the rotational direction of the weight member when the weight member rotates relative to the body member in a predetermined direction; A toy characterized by comprising:

2. The weight member is a bearing part rotatably supported by the main body member; an arm portion extending from the pivot support portion in a direction perpendicular to the axis; A weight portion provided at the tip of the arm portion; 2. The toy of claim 1, further comprising:

3. The elastic member is Rubber band or spiral spring 3. The toy according to claim 1 or 2.

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