JP6236177B1 - Top toy - Google Patents

Abstract

The moment of inertia is suitably changed according to the rotation speed while improving the rotation stability as compared with the prior art. A top toy 1 has a shaft portion 10 and a body 40, and rotates around an axis Ax of a rotation shaft 11. The body 40 has a guide groove 48 extending from the rotating shaft 11 side toward the outer peripheral side and having a step 483 formed in the middle thereof, and a spherical weight member 49 accommodated in the guide groove 48 so as to be able to roll. Is provided. [Selection] Figure 3

Description

  The present invention relates to a top toy.

  As a battle game using top toys, the top toys collide with each other, and the impact force stops the opponent's top toy, flips the opponent's top toy, or disassembles the opponent's top toy. is there.

  For example, the top toy disclosed in Patent Document 1 is devised to improve attack power or maintain stable rotation by automatically controlling the balance of rotation according to the rotation speed. . Specifically, the top toy described in Patent Document 1 is provided with a plurality of guide grooves that extend radially from the center of rotation of the top toy main body toward the outer peripheral side of the top toy body. A weight member such as an iron ball is movably disposed in the groove.

  In the case of the top toy of Patent Document 1, during high-speed rotation, the iron ball moves to the outer peripheral side (periphery) along the guide groove by centrifugal force. Thereby, since the moment of inertia of the top toy increases, the attack power (impact power) during the battle is improved. In addition, during low-speed rotation, the iron ball moves toward the center along the guide groove. Thereby, since the moment of inertia of the top toy becomes small, the rotation of the top toy is stabilized.

Utility Model Registration No. 3071767

  However, in the top toy described in Patent Document 1, since each guide groove has a uniform gradient, the weight member moves in the guide groove even with a slight rotational fluctuation. As a result, the moment of inertia of the top toy is likely to change, and rather the rotation may become unstable.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a top toy that can change the moment of inertia suitably in accordance with the rotational speed while improving the rotational stability as compared with the prior art. To do.

In order to solve the above-mentioned problem, the first means is a top toy having a shaft portion and a body and rotating around a rotation axis,
In the body,
A guide groove extending from the rotating shaft side toward the outer peripheral side and having a step formed in the middle;
A spherical weight member accommodated in the guide groove so as to be rollable;
Is provided.

The second means is the first means,
The guide groove extends so as to have an upward slope from the rotating shaft side toward the outer peripheral side.

The third means is the first means or the second means,
The guide groove includes one groove located on the rotating shaft side and two branch grooves located on the outer peripheral side and branched from the one groove, and one of the branch grooves has no step. One groove is connected, and the other branch groove is connected to the one groove with a step.

The fourth means is the third means,
Two weight members are accommodated in the guide groove.

The fifth means is the fourth means,
Of the two branch grooves, at least one of the branch grooves is formed to have a width that can accommodate one weight member.

The sixth means is any one of the first means to the fifth means,
The trunk is provided with a plurality of the guide grooves.

The seventh means is the sixth means,
The guide groove is provided at each position facing the rotation shaft.

According to the first means, since the weight member accommodated in the guide groove of the fuselage moves (rolls) in the guide groove by increasing / decreasing the centrifugal force according to the rotational speed of the top toy, the inertia moment of the fuselage Changes according to the rotation side. At this time, since the movement of the weight member is restricted by the step formed in the middle of the guide groove, the inertia moment of the trunk changes stepwise.
As a result, the variation of the moment of inertia according to the rotational speed can be limited and the rotational stability can be improved as compared with the conventional case where the guide groove simply extends radially.
Therefore, the moment of inertia can be suitably changed according to the rotation speed while improving the rotation stability as compared with the conventional case.

It is a figure explaining how to play one embodiment of the top toy according to the present invention. It is a disassembled perspective view of the top toy of this embodiment. It is a disassembled cross-sectional perspective view of the top toy of this embodiment. It is a top view of the trunk in the top toy of this embodiment. It is the operation | movement figure which showed the engagement state of the top main body, the trunk | drum, and the flywheel in the top toy of this embodiment. It is the perspective view which showed an example of the launcher which rotationally drives the top toy of this embodiment. It is a figure for demonstrating operation | movement of the weight member in the top toy of this embodiment. It is the figure which showed the modification of the top toy of this embodiment.

  Hereinafter, the top toy of the present invention will be described based on the embodiments shown in the drawings.

"overall structure"
1A is a perspective view of an embodiment of a top toy according to the present invention, FIG. 1B is a diagram illustrating how to play it, and FIG. 2 is an exploded perspective view of the top toy of the present embodiment. FIG. 3 is an exploded cross-sectional perspective view of the top toy according to the present embodiment, and FIG. 4 is a plan view of a body 40 described later. In the present specification, the top, bottom, left and right, and front and rear refer to the directions shown in FIGS.
As shown to FIG. 1 (A), the top toy 1 of this embodiment is a top toy which can be used for what is called a top battle game. Specifically, the top toy 1 can be used in a battle game in which the opponent's top toy 1 is disassembled as shown in FIG.
As shown in FIGS. 2 and 3, the top toy 1 includes a shaft portion 10 that forms a lower structure, and a performance variable ring 30 and a body 40 that form an upper structure.

<Detailed configuration>
1. About Shaft 10 As shown in FIGS. 2 and 3, the shank 10 includes a rotary shaft 11 in the lower part, a flange 12 in the middle part, and a cylindrical part 13 in the upper part.
Of these, the flange 12 and the cylindrical portion 13 are integrally formed to constitute the upper portion of the shaft portion, and the flange 12 and the cylindrical portion 13 are fixed to the lower portion of the shaft portion with screws (not shown).
The lower part of the shaft part is formed in a substantially inverted conical shape as a whole with a shape gradually narrowing from the side of the flange 12 toward the tip side of the rotary shaft 11.
A part 2 that faces in the front-rear direction sandwiching an axis Ax of the rotating shaft 11 (hereinafter simply referred to as “axis Ax”) that coincides with the axis of the entire top toy 1 along the vertical direction between the cage 12 and the cylindrical portion 13. A hole 14 is formed at each location. On the other hand, a projecting piece 11a projecting radially outward is formed at a position corresponding to the hole 14 of the flange 12 at the lower portion of the shaft portion. The projecting piece 11 a is located below the hole 14 of the flange 12.
Further, the cylindrical portion 13 is formed with projecting portions 15 at two portions facing each other in the left-right direction across the axis Ax. The outer surface of the protruding portion 15 is flush with the outer peripheral surface of the flange 12. Further, a protruding portion 11b that protrudes outward in the radial direction is formed at a position corresponding to the protruding portion 15 at the lower portion of the shaft portion. And the collar 12 and the cylindrical part 13 are being fixed with the bis | screw (illustration omitted) to the axial part lower part in the location of the protrusion parts 15 and 11b.
A cylindrical body 16 is erected on the inner side of the cylindrical portion 13. The base end portion of the cylindrical body 16 is connected to the lower portion of the shaft portion. The upper end of the cylindrical body 16 is not particularly limited, but is set at a position higher than the upper end of the cylindrical portion 13. Claws 17 are formed at the upper end of the cylindrical body 16 so as to project outward in the radial direction at two portions facing each other in the front-rear direction across the axis Ax.

The shaft portion 10 includes a cylindrical pressing member 18. The pressing member 18 is made of synthetic resin, but may be made of metal. The pressing member 18 is installed inside the cylindrical portion 13 so as to surround the outer periphery of the columnar body 16.
The pressing member 18 includes a cylindrical portion 18a, a ceiling portion 18b, and a leg portion 18c.
A ceiling portion 18b is provided at the upper end of the cylindrical portion 18a. A hole 18d having a shape corresponding to the upper end portion of the columnar body 16 is formed in the ceiling portion 18b.
A leg portion 18c is provided at the lower end of the outer periphery of the cylindrical portion 18a. The leg portions 18c are formed at two portions facing each other in the front-rear direction across the axis Ax.
The pressing member 18 configured in this manner is installed such that the leg portion 18c is inserted into the hole 14. The vertical dimension of the hole 14 is set to be larger than the length of the leg 18c. And then. The pressing member 18 is biased upward by a spring 20. In the pressing member 18, the upward movement of the leg portion 18 c is restricted at the upper edge of the hole 14, and the upper end of the pressing member 18 is normally at the same height as the upper end of the cylindrical portion 13.
Further, on the upper surface of the ceiling portion 18b of the pressing member 18, ridges (protrusions) 21 extending in the radial direction are formed at two locations facing each other in the left-right direction across the axis Ax.

2. About Performance Variable Ring 30 In this embodiment, a flywheel is used as the performance variable ring 30. The performance variable ring 30 has a plate shape. An annular step 31 is formed on the bottom surface of the variable performance ring 30 to accommodate the flange 12 of the shaft 10 from below. In addition, on the upper surface of the performance variable ring 30, there are formed projecting portions 32 projecting upward at two portions facing each other in the left-right direction across the axis Ax. A concave portion 33 that can accommodate the protruding portion 15 of the shaft portion 10 from below is formed in the lower portion of each protruding portion 32. Further, a tongue piece 34 is formed on the upper surface of the variable performance ring 30 so as to extend upward just outside each protrusion 32. The tongue piece 34 projects upward from the projecting portion 32. The variable performance ring 30 may be a flywheel instead of or integrated with the flywheel, and has a protrusion on the outer peripheral surface to make it easier to attack the opponent's top toy 1 or a recess on the outer peripheral surface. It may be difficult to receive an attack from the opponent's top toy 1.

3. About the body 40 The body 40 has a disk shape with the axis Ax as the central axis. The body 40 includes a base body 400 and a transparent cover body 401 that is a lid portion that covers the base body 400 in substantially the same shape as the base body 400 when viewed from above.
Concavities and convexities 40 a are formed on the outer periphery of the body 40. A circular hole 41 is formed in the center of the base body 400. The transparent cover body 401 is covered on a portion excluding the circular hole 41 and an arc slit 46 described later. In addition, illustration of the transparent cover body 401 is abbreviate | omitted in FIG. Furthermore, an annular recess 42 that can accommodate the protruding portion 32 of the variable performance ring 30 from below is formed on the lower surface of the body 40.
At the lower end of the inner peripheral surface of the inner peripheral wall 43a that defines the annular recess 42, claws 44 projecting inward in the radial direction are respectively provided at two locations facing the axis Ax in the front-rear direction.
Further, projections 47 projecting inward in the radial direction are respectively provided at two portions of the inner circumferential surface 43a that are opposed to each other in the left-right direction across the axis Ax.
Further, on the lower end surface of the inner peripheral wall 43a, there are formed undulating portions 45 that are continuously formed with concavities and convexities and are engaged with the ridges 21 at two portions facing each other in the left-right direction across the axis Ax.
In addition, arc-shaped slits 46 into which the tongue pieces 34 of the performance variable ring 30 can be inserted from below are formed in the ceiling wall 43b, which defines the annular recess 42 of the body 40, at two locations facing each other across the axis Ax. Has been. The circumferential length of the arc-shaped slit 46 is such that the tongue piece 34 can move sufficiently.

On the upper surface of the base body 400 of the body 40, guide grooves extending so as to have an ascending slope from the axis Ax side (inner peripheral side) to the outer peripheral side at two locations facing each other in the front-rear direction across the axis Ax. 48 is formed. The guide groove 48 is for guiding a spherical weight member 49 capable of rolling in the guide groove 48, and accommodates two weight members 49 in the present embodiment.
Specifically, as shown in FIG. 4, the guide groove 48 includes one base end groove 481 located on the axis Ax side, and two branch grooves 482 located on the outer peripheral side and branched from the base end groove 481. It is formed in the substantially Y shape which has. Each of these grooves is formed to have a width that can accommodate only one weight member 49, that is, a width corresponding to the diameter of the weight member 49.
Among these, the base end groove 481 is formed substantially radially along the radial direction of the base body 400.
The two branch grooves 482 branch from the outer peripheral end of the base end groove 481 substantially evenly toward the left and right outer peripheral sides in plan view (substantially symmetrical with respect to the base end groove 481).
Of the two branch grooves 482, the first branch groove 482a located on the front side in the rotational direction of the body 40 (right side toward the outer periphery in plan view) is smoothly connected to the base end groove 481 without a step.
On the other hand, the second branch groove 482b located on the rear side in the rotational direction of the body 40 (left side toward the outer periphery in plan view) is connected to the base end groove 481 with a step 483, and is more than the base end groove 481. The bottom is high. The step 483 is provided at the base end portion of the second branch groove 482b so as to smoothly connect the outside in the bending direction of the connection portion between the base end groove 481 and the first branch groove 482a in plan view. Further, the step 483 is as high as the radius of the weight member 49.
The base end groove 481 and the two branch grooves 482 are formed to have substantially the same length. More specifically, each of the proximal end groove 481 and the first branch groove 482a has a weight member 49 positioned at the distal end of the base end groove 481 and the connection portion 484 of the three grooves. The length from the tip to the center of the connecting portion 484 is about 1.5 times the diameter of the weight member 49 so as to be located at the center (see FIGS. 7A and 7B). The second branch groove 482b is formed to have a length approximately equal to the diameter of the weight member 49 from the step 483 to the tip (see FIG. 7C).

As shown in FIGS. 2 and 3, an identification component 60 is attached to the circular hole 41 of the body 40. This identification component 60 is used for identification of the top toy 1 and identification of the player.
For this identification, in this embodiment, a plurality of identification parts having different patterns and / or colors are prepared, and one identification part selected by the player is attached to the circular hole 41.
The identification component 60 has a substantially short cylindrical shape as a whole. The central part of the upper surface of the identification component 60 is recessed in a mortar shape, and the operation recesses 61 formed at the two portions facing each other across the axis Ax are formed on the edge surrounding the recess. . The flange 12 of the shaft portion 10 can be inserted into the operation recess 61, and the identification component 60 can be operated by moving the shaft portion 10 inserted into the operation recess 61.
Grooves 62 into which the protrusions 47 enter when inserted into the circular holes 41 of the body 40 are formed on the outer periphery of the identification component 60 at two locations facing each other across the axis. The groove 62 has a portion extending in the vertical direction and opened to the lower side of the identification component 60, and a portion extending substantially along the circumferential direction from the upper end of this portion. Then, by moving the protrusion 47 of the circular hole 41 along the groove 62 and inserting the identification component 60 into the circular hole 41 of the trunk 40 from above, the identification component 60 is rotated by the trunk 40. It is designed to be attached to the circular hole 41.

<Assembly method>
Next, an example of a method for assembling the top toy 1 will be described.
FIG. 5 is a view for explaining an engagement state of the shaft portion 10, the performance variable ring 30, and the body 40.
Here, it is assumed that the assembly of the shaft portion 10 has already been completed. Further, it is assumed that the attachment of the identification component 60 to the circular hole 41 of the body 40 is also completed.
First, the shaft portion 10 and the variable performance ring 30 are assembled in a fitted state so that the protruding portion 15 of the shaft portion 10 is aligned with the concave portion 33 of the performance variable ring 30 from below. Next, this assembly is brought closer to the body 40 from below. At this time, the tongue piece 34 of the performance variable ring 30 of the assembly is aligned with a predetermined end of the arc-shaped slit 46 of the body 40 (FIG. 5A). This state is a state in which the claw 17 of the shaft portion 10 and the claw 44 of the body 40 do not overlap in the vertical direction. This state is a state where the connection can be released. Thereafter, the shaft portion 10 of the assembly is pressed toward the body 40 side. Then, first, the performance variable ring 30 is pressed against the lower surface of the body 40. Further, the spring 20 is contracted, and the claw 17 of the shaft portion 10 is pushed upward relative to the claw 44 of the body 40. Then, the shaft portion 10 is rotated integrally with the performance variable ring 30 until the tongue piece 34 moves to the end opposite to the predetermined end with respect to the body 40 (FIG. 5B). The rotation in this case is relative rotation between the body 40, the performance variable ring 30 and the shaft portion 10, and in FIG. 5B, the body 40 side is rotated with respect to the shaft portion 10 and the performance variable ring 30. The state that was allowed to appear is shown. Then, the claw 17 of the shaft portion 10 and the claw 44 of the body 40 are overlapped in the vertical direction. Then, when the hand is released from the shaft portion 10, the lower surface of the claw 17 of the shaft portion 10 and the upper surface of the claw 44 of the body 40 are brought into contact with each other by the urging force of the spring 20.
A state in which the lower surface of the claw 17 of the shaft portion 10 and the upper surface of the claw 44 of the body 40 are in contact is a combined state. Thereby, the axial part 10, the performance variable ring 30, and the trunk | drum 40 are couple | bonded, and the top toy 1 is assembled.

"how to play"
Next, an example of how to play using the top toy 1 will be described.
In an example of this way of playing, the top toy 1 is rotated to fight the opponent's top toy 1.
In this case, the rotational force of the top toy 1 is charged by a launcher 50 as shown in FIG. The launcher 50 includes a disk (not shown) inside, and biases the disk in one rotation direction by a spring (not shown) and pulls a string (not shown) wound around the disk with a handle 51. The disk is rotated and the frame holder 53 is rotated. The rotation of the top holder 53 is transmitted to the top toy 1 by the fork 54 protruding downward, and the top toy 1 is rotated. In this case, the fork 54 is inserted into the arc-shaped slit 46 of the body 40. When the handle 51 of the launcher 50 is pulled out, the rotation of the disk and thus the top holder 53 stops, while the top toy 1 still rotates due to the inertial force, so that the top toy follows the inclined surface 54a of the fork 54. 1 is removed from the frame holder 53. In FIG. 6, reference numeral 52 denotes a rod that can be moved in and out of the frame holder 53. When the top toy 1 is mounted on the top holder 53, the rod 52 is pushed onto the top surface of the top toy 1 and sinks into the top holder 53. The rod 52 is used, for example, to detect whether the top toy 1 is attached or detached.

When the top toy 1 thus fired is rotated in a predetermined field and collides with the opponent's top toy 1, the shaft 40 and the variable performance ring are placed on the body 40 due to impact force or rubbing caused by the collision. A force in a direction opposite to the rotation direction of the rotation force 30 acts, whereby the body 40 rotates relatively in a direction opposite to the rotation direction of the shaft portion 10 and the performance variable ring 30.
Then, the protrusion 21 meshes with the undulating portion 45 on the lower surface of the body 40 (see FIG. 5). In this case, since the urging force of the spring 20 acts on the ridge 21, each time an impact force due to a collision acts, the shaft portion 10 rotates relative to the body 40 to change the engagement position. When the stop release position is reached, the claws 44 of the body 40 are disengaged from the claws 17 of the shaft portion 10, so that the body 40 is separated from the shaft portion 10 by the urging force of the spring 20. Then, as shown in FIG. 1B, the top toy 1 is disassembled.

Further, in the top toy 1, the weight member 49 accommodated in the guide groove 48 of the body 40 moves in the guide groove 48 by increasing or decreasing the centrifugal force according to the rotation speed of the top toy 1.
Specifically, at the time of low-speed rotation, since the centrifugal force that climbs the inclination of the guide groove 48 does not act on the weight member 49, the two weight members 49 have the guide groove 48 as shown in FIG. It is located on the inner circumference side. More precisely, the inner weight member 49 is positioned at the distal end (inner peripheral end) of the base end groove 481, and the outer weight member 49 is connected in contact with the inner weight member 49. Located at portion 484. Therefore, at the time of low-speed rotation, the moment of inertia of the top toy 1 (body 40) is relatively small, and the top toy 1 can be easily rotated.

  Thereafter, when the rotational speed increases, as shown in FIG. 7B, the centrifugal force acting on the weight member 49 increases, and the weight member 49 moves up the inclination of the guide groove 48 toward the outer peripheral side. At this time, since the movement from the base end groove 481 to the second branch groove 482b is regulated by the step 483, the weight member 49 on the outer peripheral side moves to the tip (outer end) of the first branch groove 482a, and the inner periphery The weight member 49 on the side moves to the connecting portion 484 while being in contact with the weight member 49 on the outer peripheral side. Thereby, since the moment of inertia of the top toy 1 (torso 40) is increased, fluctuations in the rotational speed are suppressed, and the attack power (impact power) against the top toy 1 of the other party is increased.

  When the top toy 1 collides with the other top toy or when the rotational speed further increases, as shown in FIG. 7C, the weight on the inner periphery side is increased due to an impact or centrifugal force at the time of the collision. The member 49 moves over the step 483 to the tip of the second branch groove 482b. As a result, the moment of inertia of the top toy 1 (the torso 40) is further increased, so that fluctuations in rotational speed are further suppressed, and the attack power (impact force) of the opponent's top toy 1 is further increased.

As described above, according to the top toy 1 of the present embodiment, the weight member 49 accommodated in the guide groove 48 of the body 40 is moved into the guide groove 48 by increasing or decreasing the centrifugal force according to the rotation speed of the top toy 1. Is moved (rolled), the moment of inertia of the body 40 changes depending on the rotation side. At this time, since the movement of the weight member 49 is restricted by the step 483 formed in the middle of the guide groove 48, the moment of inertia of the body 40 changes stepwise.
As a result, the variation of the moment of inertia according to the rotational speed can be limited and the rotational stability can be improved as compared with the conventional case where the guide groove simply extends radially.
Therefore, the moment of inertia can be suitably changed according to the rotation speed while improving the rotation stability as compared with the conventional case, and thus the interest of the top toy 1 can be enhanced.

<< Modification of the Present Invention >>
As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that this invention is not limited to this embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.

For example, in the embodiment described above, the weight member 49 is guided by the guide groove 48 branched in a Y-shape, but the guide groove 48 extends from the axis Ax side toward the outer peripheral side. However, there is no particular limitation on the shape or the like as long as a step is formed on the way.
For example, as shown in FIG. 8, a guide groove 48 </ b> A may be provided that extends radially in the radial direction of the body 40 and has a step 483 </ b> A in the middle thereof. Further, the guide groove 48 may not have an upward gradient from the axis Ax side to the outer peripheral side.
Further, the number and position of the guide grooves 48 are not particularly limited. Only one guide groove 48 may be provided, or three or more guide grooves 48 may be provided at equal intervals on the circumference.

Further, the number of weight members 49 accommodated in the guide groove 48 is not particularly limited. In the case of a guide groove that is not branched as shown in FIG. 8, only one weight member 49 may be accommodated.
Further, a plurality of weight members 49 may be arranged to move in the guide groove 48 side by side. However, it is preferable that the first branch groove 482a having no step 483 among the two branch grooves has a width that can accommodate one weight member 49.

  Further, the guide groove 48 may be offset in the tangential direction of the body 40 or the base end groove 481 may be slightly inclined with respect to the radial direction of the body 40 in accordance with an assumed impact force or the like.

  Further, in the above embodiment, of the two branch grooves 482, the first branch groove 482a on the front side in the rotation direction has no step, and the step 483 is provided on the second branch groove 482b on the rear side in the rotation direction. The branch groove 482 provided with the step 483 may be reversed.

1 top toy 10 shaft 11 rotating shaft 40 body 48, 48A guide groove 481 base end groove 482 branch groove 482a first branch groove 482b second branch groove 483, 483A step 484 connecting portion 49 weight member Ax axis

Claims (7)

A top toy having a shaft portion and a body and rotating around a rotation axis,
In the body,
A guide groove extending from the rotating shaft side toward the outer peripheral side and having a step formed in the middle;
A spherical weight member accommodated in the guide groove so as to be rollable;
The top toy is characterized by being provided.   The top toy according to claim 1, wherein the guide groove extends so as to have an upward slope from the rotating shaft side toward the outer peripheral side.   The guide groove includes one groove located on the rotating shaft side and two branch grooves located on the outer peripheral side and branched from the one groove, and one of the branch grooves has no step. The top toy according to claim 1 or 2, wherein the top piece is connected to one groove and the other branching groove is connected to the single groove with a step.   The top toy according to claim 3, wherein two weight members are accommodated in the guide groove.   5. The top toy according to claim 4, wherein at least one of the two branch grooves is formed to have a width that can accommodate one weight member.   The top toy according to any one of claims 1 to 5, wherein the body is provided with a plurality of the guide grooves.   The top toy according to claim 6, wherein the guide groove is provided at each position facing the rotation shaft.

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