Patentable/Patents/US-20260158369-A1
US-20260158369-A1

Stadium Toy

PublishedJune 11, 2026
Assigneenot available in USPTO data we have
Technical Abstract

A stadium toy includes a field, a step part, a movable part, and an output and retraction mechanism. The field includes a floor on which a top toy runs around. The movable part is configured to move in order to output and retract the step part configured to limit a range in which the top toy runs around. The output and retraction mechanism is configured to move the movable part to output and retract the step part.

Patent Claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

a field including a floor on which a top toy runs around; a step part; a movable part configured to move in order to output and retract the step part configured to limit a range in which the top toy runs around; and an output and retraction mechanism configured to move the movable part to output and retract the step part. . A stadium toy comprising:

2

claim 1 the movable part constitutes a portion of the floor, the movable part is configured to rise and lower with respect to a remaining part of the floor, and the movable part is configured to generate the step part with the remaining part of the floor in response to the rising and lowering. . The stadium toy according to, wherein

3

claim 2 the movable part is circular in a plan view. . The stadium toy according to, wherein

4

claim 2 the movable part is provided in a center of the floor. . The stadium toy according to, wherein

5

claim 2 the top toy includes a wheel, the step part includes a first acceleration rail being configured to accelerate the top toy by engaging with the wheel, and the first acceleration rail is output and retracted together with the step part. . The stadium toy according to, wherein

6

claim 5 the first acceleration rail extends along an entire circumference of the step part. . The stadium toy according to, wherein

7

claim 5 the output and retraction mechanism includes a motor as a power source and an alternate operation switch, and when the alternate operation switch is turned on, the output and retraction mechanism is configured to continue moving the movable floor up and down by using the motor. . The stadium toy according to, wherein

8

claim 7 the output and retraction mechanism makes a floor of the movable part and the remaining part of the floor flush with each other when the alternate operation switch is turned off. . The stadium toy according to, wherein

9

claim 1 the floor includes a second acceleration rail on an outer edge thereof. . The stadium toy according to, wherein

Detailed Description

Complete technical specification and implementation details from the patent document.

The present application claims priority under 35 U.S.C. 119 to Japanese Patent Application No. 2024-102490 filed on Jun. 26, 2024. The entire content of Japanese Patent Application No. 2024-102490 is incorporated herein by reference.

The present invention relates to a stadium toy.

A top toy game stand provided with a plurality of turntables installed on a game surface for spinning a top toy, and a drive device for rotating the turntable by the power of a motor is known from the past (e.g. see Patent Document 1).

Patent Document 1: Japanese Patent Application Publication No. 2023-171679

In the invention noted in the abovementioned Patent Document 1, the top toy runs around in various directions by rotation of the turntables.

However, if we focus on one top toy, the top toy is placed on the turntable from outside, and though the jumping out direction is different, it jumps out from the turntable in a similar trajectory, and this is simply repeated, so the movement was monotonous.

The present invention was created considering these circumstances, and its purpose is to provide a stadium toy that can make the top toy run around in various ways.

A stadium toy includes a field, a step part, a movable part, and an output and retraction mechanism.

The field includes a floor on which a top toy runs around. The movable part is configured to move in order to output and retract the step part configured to limit a range in which the top toy runs around. The output and retraction mechanism is configured to move the movable part to output and retract the step part.

1 FIG. 2 FIG. 3 FIG. 10 10 10 16 13 a is a perspective view of a stadium toy.is a perspective view seen from below the stadium toy.is a perspective view of the stadium toyshowing the state with a coverremoved and a movable floorlowered.

10 50 The stadium toyperforms battles of two or more top toysthat are rotationally energized.

10 50 11 11 50 50 50 12 11 50 With this stadium toy, the top toyreleased into a fieldruns around inside the field, and perform a battle between top toysby contacting other top toys. During this battle, when the top toycontacts an acceleration railthat defines the field, the movement of the top toyis accelerated.

13 11 13 13 1 13 19 13 13 19 13 13 14 19 a a a a b a b 3 FIG. 2 FIG. A portion of a floorof the fieldserves as the movable floor(). The movable floorcontinues to move up and down when a switch SW() is turned on. When the movable flooris lowered, a recess is formed in the floor surface, and a step partappears between the movable floorand a surrounding floor. In other words, there is a gap in a height direction, which is considered as the step part, between the movable floorand the surrounding floor. An acceleration railformed in the step partis exposed.

50 50 50 14 14 13 13 13 50 13 50 12 a a b b When the top toythat is running around falls into the recess, the top toyruns around inside the recess. Then, when the top toytouches the acceleration rail, it is accelerated and it runs around vigorously along the acceleration rail. During this time as well, the movable floorcontinues to move up and down. Eventually, when the movable floorbecomes flush with the surrounding floor, the energized top toygoes out to the surrounding floorin the periphery by the centrifugal force of moving around. The top toythen contacts the acceleration railand is accelerated.

4 FIG. 50 is a perspective view of the top toy.

50 51 52 51 52 53 52 53 53 12 14 50 53 12 14 50 The top toyincludes a trunk partand a shaft part. The trunk partand the shaft partare not particularly restricted, but rotate integrally. A wheelis provided on the shaft part. The wheelis a gear in the embodiment. This wheelengages with a functional section of acceleration rails,by the top toyrunning around. As a result, the wheelabuts the acceleration rails,and rolls, and the top toyis accelerated.

50 54 54 51 50 50 50 50 The rotational energization of this top toyis performed by a fork on a launching device (not illustrated) being inserted in arc-shaped recesses,formed on the top surface of the trunk part, and by the top toybeing rotated in relation to the fork in the direction opposite to the rotational energization direction of the top toy, the top toybeing locked by the fork, and in this state, the fork being rotated in the rotational energization direction by a launcher toy. Thereafter, when rotation of the fork stops, the top toyis released by the launcher toy.

5 FIG. 10 is an exploded perspective view of the stadium toy.

10 15 11 16 15 The stadium toyincludes a base boardthat constitutes the field, and the coverthat is covered on the base board.

15 15 17 13 11 The base boardis constituted from transparent plastic. The base boardis supported by four legsso that the floorof the fieldreaches a prescribed height.

16 50 The coveris constituted from transparent plastic, and the center part of the ceiling is open in a circle. The rotationally energized top toycan be input from this opening.

16 15 18 16 15 17 Attachment of the coverto the base boardis accomplished by having a portion of four locking devicespass through holes (not illustrated) of the coverand the base board, and being fitted on the four legs.

13 11 15 13 13 13 12 10 11 12 a b The floorof the fieldof the base boardis overall a bowl-shaped recess. The center of the flooris the movable floor, and a fixed surrounding flooris disposed outside that. The acceleration railis disposed on the stadium toyto define the field. The acceleration railis constituted by rack members arranged in a heart shape in the top view.

6 FIG. 7 FIG. 15 20 10 20 is an exploded perspective view of the base boardand an operating unitof the stadium toy, andis an exploded perspective view of the operating unit.

10 20 13 20 21 21 22 22 14 13 13 13 14 130 13 22 22 21 21 130 a c b c c c a c. The stadium toyincludes the operating unitthat raises and lowers the movable floor. The operating unitincludes a bolt-cylinder shaped case. On the top edge part of this case, an annular seatis provided. Placed on the seatare the acceleration railthat is annular in the top view, and a connecting floorthat is annular in the top view and that constitutes a portion of the surrounding floor. The flooris fitted from below on this acceleration rail, a bosswith a female thread of the flooris inserted in a holeof the seat, and the caseis secured by screwing a male screw (not illustrated) from the bottom side of the caseto a female thread of the boss

8 FIG. 21 is a perspective view showing the internal structure of the case.

13 21 21 13 21 130 13 14 a a a a The movable floorthat is circular in the top view is attached to the caseso as to close the top end opening of the case. This movable flooris supported to be able to move up and down in the case, and is energized downward by a coil spring. The movable flooris disposed on the inside of the acceleration railthat is annular in the top view.

23 13 13 a a. The drive devicethat moves the movable floorup and down is disposed below the movable floor

9 FIG. 10 FIG. 23 23 is a perspective view showing the drive device, andis a perspective view showing the drive deviceviewed from a different angle.

23 24 25 13 26 25 25 a The drive deviceincludes a motorwhich is the power source, a plate camwhich has the movable flooras a follower, and a power transmission mechanismthat transmits the motor power to the plate cam. The plate camconstitutes an output and retraction mechanism that outputs and retracts the step part.

25 25 2 25 25 2 25 25 25 25 a a a. A notchis formed on the end face of the plate cam. The operation section of a switch SWdescribed later is made to be detachable with the end face of the plate camaccording to the rotation position. Specifically, according to rotation of the plate cam, the operation section of the switch SWseparates from the end face of the plate camat the position of the notch, and abuts the end face of the plate camat a location other than the notch

26 26 26 25 26 26 26 a h i e f The power transmission mechanismtransmits the motor power via gearstoto the plate cam. A clutch (torque limiter)is provided between the gearand the gear, and transmission of power therebetween is blocked when an overload occurs.

25 25 13 130 25 13 25 13 a a a a The plate camis an eccentric rotor. A positive motion cam is constituted by this plate camand the movable floorenergized by the coil spring. Here, the plate camabuts the center bottom surface of the movable floor. As a result, when the plate camrotates, the movable floormoves up and down.

27 21 27 28 21 2 FIG. A battery boxis provided inside the case. A battery can be attached and detached with this battery boxby opening a lid() on the lower side of the case.

11 FIG. 40 10 shows a motor drive circuitof the stadium toy.

1 2 24 40 Switch SWand switch SWare arranged in parallel with respect to the motorin the motor drive circuit.

1 1 24 25 The switch SWis an alternate switch for the power supply, and when the switch SWis turned on, the motoroperates and rotates the plate cam.

2 2 25 2 25 The switch SWis a momentary switch. The switch SWis arranged near the plate cam. The switch SWcan be separated from or in contact with the end face of the plate cam.

40 1 2 24 25 1 2 25 24 2 25 25 25 2 2 24 13 13 a a b With this motor drive circuit, when the switch SWis turned on, regardless of the state of the switch SW, the motoris operated and rotates the plate cam. In this state, when the switch SWis turned off, while the operation section of the switch SWabuts the end face of the plate cam, the motorcontinues rotating because the switch SWis turned on. Then, according to the rotation of the plate cam, when the notchof the end face of the plate camreaches the operation section of the switch SW, the switch SWis turned off, the rotation of the motorstops, and that position is a position at which the movable floorand the surrounding floorare flush with each other.

10 10 20 13 13 20 13 13 12 FIG. 13 FIG. a b a b. Next, how to play using the stadium toy, operation of the stadium toy, etc., are explained.is a perspective view of the operating unitshowing the state when the movable floorand the surrounding floorare flush with each other.is a perspective view of the operating unitshowing the state when the movable flooris lowered with respect to the surrounding floor

1 13 13 50 10 50 50 12 12 a b In a state with the switch SWturned off, the movable flooris flush with the surrounding floor. When two or more rotationally energized top toysare released in the stadium toyin this state, it is possible to have a battle with top toysbumping into each other. At this time, when the top toyabuts the acceleration rail, it is accelerated by the acceleration rail, and the battle is waged.

1 24 25 13 1 13 13 13 50 a a b When the switch SWis turned on, the motoroperates, the plate camrotates, and the movable floorrepeatedly moves up and down until the switch SWis turned off. When the movable flooris lowered, a recess is formed in the floor. Because the surrounding flooris tilted, it is easy for the top toythat is running around to fall into the recess.

50 50 53 50 14 50 14 When the top toyfalls into the recess, the top toyis constrained inside the recess, and the wheelof the top toythat is running around in the recess immediately engages with the functional section of the acceleration rail. As a result, the top toyis accelerated, and moves around along the acceleration rail.

13 13 13 50 13 12 a a b a Then, when the movable flooris raised and the movable floorbecomes flush with the surrounding floor, the top toyenergetically goes out from the movable floordue to centrifugal force and contacts the outside acceleration rail, is accelerated here as well, and the battle is waged.

50 50 The operation described above is repeated until the top toystops or the momentum of the top toyruns out.

1 25 2 13 13 13 13 a a a b. When the switch SWis turned off in this state, the plate camrotates until the switch SWis turned off, the movable flooris raised and and the movable floorstops at the location at which the movable flooris flush with the surrounding floor

10 The following effects can be obtained with the stadium toyof the present embodiment.

13 14 50 10 a By moving the movable floor (adjacent part)up and down with respect to at least a portion of the functional section (teeth) of the acceleration rail, there is a change in the existence of acceleration of the top toyin that region, so it is possible to realize a highly entertaining stadium toy.

13 50 13 10 a a Because the movable flooris moved up and down, it is possible to change the running around region of the top toyaccording to the up and down movement of the movable floor, and possible to realize a highly entertaining stadium toy.

13 13 11 50 14 a Additionally, when the movable flooris lowered, a recess is formed in the floorof the field, and it is possible to accelerate the top toythat fell into the recess using the acceleration rail.

1 It is possible to easily continue the up and down movement using the motor power by turning the switch SWon, so it is possible to change the top toy acceleration region and running around region over time.

1 Furthermore, since there is a return to the initial state of the floor surface when the switch SWis turned off, it is possible to easily perform playing using the initial floor surface state at any time.

50 It is possible to increase the acceleration region, so it is possible to make the top toyrun around with intensity.

14 19 50 14 13 13 13 50 a b a The acceleration railis provided along the entire circumference of the step partthat is circular in the top view, so the accelerated top toymoves around along the acceleration rail, and at the location at which the movable floorand the surrounding floorare flush with each other, it goes out from the movable floor, so at this point as well, it is possible to give randomness to the movement of the top toy.

Above, an embodiment of the present disclosure was explained, but the present disclosure is not limited to this embodiment, and various modifications are possible.

14 14 19 50 19 50 For example, in the abovementioned embodiment, the acceleration railwas provided on the step part, but it is also possible to not provide the acceleration rail. If the step partappears, the movement range of the top toyis limited, and if the step partdisappears, the top toymoves around across the location where the step was.

13 11 13 11 a a In the abovementioned embodiment, the movable floorwas provided in the center of the field, but it is also possible to provide the movable floorat the edge part of the field.

14 19 13 14 a In the abovementioned embodiment, the functional section of the acceleration railwas provided along the entire circumference of the step partformed when the movable flooris lowered, but it is also possible to have the functional section of the acceleration railprovided at a portion of the step part.

14 13 14 14 50 14 13 a a In the abovementioned embodiment, the functional section (teeth) of the acceleration railand the adjacent movable floor(adjacent part) were able to move up and down, but it is also possible to have the adjacent part operate along the floor surface and separate from or be in contact with the functional section (teeth) of the acceleration rail. In this case, when the functional section of the acceleration railand the adjacent part are separated, the form is such that a passage for the top toyis formed between the functional section of the acceleration railand the adjacent part. The method of moving the movable floorup and down does not have to be moving the entirety up and down, but may also be rotating up and down around a prescribed axis.

13 25 13 13 a a a In the abovementioned embodiment, the movable floorwas moved up and down by the plate cam, but it is also possible to configure so that the movable flooris moved up and down by expanding and contracting a bellows that can supply and exhaust air using an actuator, or to move the movable floorup and down using a rack and pinion, a lever, or a link mechanism.

13 14 13 14 a a In the abovementioned embodiment, the movable floorwas moved up and down with respect to the acceleration rail, but it is also possible to have the movable floorbe a fixed floor and to move the acceleration railup and down.

13 a In the abovementioned embodiment, the movable floorwas moved up and down using motor power, but it is also possible to move up and down by manual operation. In this case, it is necessary to provide an operation switch at a position that can be operated while playing.

13 a In the abovementioned embodiment, the movable floorup and down movement was performed continuously, but this can also be configured to stop step by step at prescribed positions.

13 a Furthermore, in the abovementioned embodiment, up and down movement of the movable floorwas performed continuously, but it is also possible to configure to move up and down intermittently, or configure to change the speed of the up and down movement as the up and down movement continues.

1 The switch SWwas made to be an alternate switch, but it is also possible to configure as a momentary switch to move up and down only during operation of the switch. In this case, it is necessary to provide the operation switch at a position that can be operated while playing.

53 50 12 14 The wheelof the top toywas a gear, but it is also possible to be a roller that rolls on the acceleration rail. In this case, it is possible to not have teeth formed on the acceleration rails,. In short, it is sufficient to have the roller roll while abutting the functional section of the acceleration rail.

13 a In the abovementioned embodiment, the movable floorwas circular in the top view, but can be any shape.

50 The movable part that restricts the movement of the top toy, in addition to being an item that moves up and down, may also be an item that does output and retraction by sliding/rotation from the side surface without constituting a floor surface, or drops down from above by axial rotation.

The sliding contact surface of the movable part with the top toy can be a straight line, but it is preferable that it be formed with a curve in the top view so as to apply centrifugal force to the top toy and raise the rotational force.

Modification examples of the present example were described, but it goes without saying that it is possible to combine the abovementioned modification examples as appropriate provided there are no contradictions.

19 According to the present disclosure, the step partis output and retracted, so it is possible to run the top toy in the extension direction of the step part, and when the step is eliminated, to run the top toy so as to cross that location.

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Patent Metadata

Filing Date

April 15, 2025

Publication Date

June 11, 2026

Inventors

Makoto MURAKI
Akira HORIKAWA

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Cite as: Patentable. “STADIUM TOY” (US-20260158369-A1). https://patentable.app/patents/US-20260158369-A1

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STADIUM TOY — Makoto MURAKI | Patentable