Wrist Sumo Wrestling Device

Abstract

Enable people with different dominant arms to engage in arm wrestling. 【Solution means】The arm wrestling battle device includes a first arm 2 for the first player to operate, a second arm 8 for the second player to operate, a first shaft 14 serving as a first rotation axis for tilting the first arm 2 left and right with respect to the housing 30, a second rotation axis for tilting the second arm 8 left and right with respect to the housing 30, a second shaft 24 provided on the straight line of the first shaft 14, a first gear 4 fixed to the tip of the first shaft 14, a second gear 6 fixed to the tip of the second shaft 24, and an intermediate gear 5 meshed between the first gear 4 and the second gear 6. The first gear 4, the second gear 6, and the intermediate gear 5 are spur gears. The force for tilting the first arm 2 left and right is transmitted to the first gear 4 by the first shaft 14, and by meshing with the second gear 6 through the intermediate gear 5 meshed with the first gear 4, the direction of the force is reversed, and the reversed force is transmitted to the second arm 8.

Description

Technical Field

[0001] The present invention relates to an arm wrestling battle device that enables arm wrestling between different left and right arms.

Background Art

[0002] Among numerous sports, arm wrestling can be played regardless of equipment or location, and thus is played by a wide range of people. In arm wrestling, both players face each other on a parallel platform and place their elbows. In this state, they hold each other's hands, and the one who can make the back of the opponent's hand touch the platform wins. Due to the advantage of being able to compare strength very simply and safely, various competitions are held.

[0003] However, due to the nature of arm wrestling, battles between the left and right cannot be conducted. When gripping hands with the left and right, the backs of both hands will face the same direction, and the rule of making the opponent's back touch the ground will not hold. If the opponent uses the right arm, one also uses the right arm, and similarly, if the opponent uses the left arm, one uses the left arm.

[0004] In sports, the inability to have a confrontation between players with different dominant arms is a major obstacle. For example, in tennis, players with different dominant arms can confront each other without problems. In the field of martial arts, there are no such restrictions, and the potential of the individuals can be fully demonstrated. However, this problem exists in arm wrestling.

[0005] As an improvement measure, it has been carried out by dividing into a right section and a left section. However, this method only aligns the dominant arm to one side and does not provide a fundamental solution.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] The problem to be solved is that in face-to-face confrontation, opponents must have the same arm to engage in a match, so players with different dominant arms cannot compete against each other.

Means for Solving the Problem

[0008] The arm sumo battle device according to the first aspect is an arm sumo battle device for a first player and a second player to Facing each other engage in an arm sumo battle, comprising a housing, a first arm rotatably provided on one side of the housing for the first player to operate, a second arm rotatably provided on the opposite side of the housing for the second player to operate, a first shaft serving as a first rotation axis for tilting the first arm left and right with respect to the housing, a second shaft serving as a second rotation axis for tilting the second arm left and right with respect to the housing and provided on the straight line of the first shaft, a first gear fixed to the tip of the first shaft, a second gear fixed to the tip of the second shaft, and an intermediate gear meshed between the first gear and the second gear. The first gear, the second gear, and the intermediate gear are spur gears, The first gear and the second gear are spaced apart in a facing posture, and an intermediate gear is meshed between them in a posture orthogonal to the first gear and the second gear. the force for tilting the first arm left and right is transmitted to the first gear by the first shaft, and by meshing with the intermediate gear meshed with the first gear and then meshing with the second gear, the direction of the force is reversed and the reversed force is transmitted to the second arm. Thus, the rotation of the first arm is transmitted so as to be a reverse rotation on the second arm side, enabling players with different dominant arms to engage in an arm sumo battle.

[0009] The arm wrestling device according to the second side further includes, on the said side, a first grip for the first player to hold, which is attached to the tip of the first arm so as to be slidable in a posture inclined with respect to the first arm, and a second grip for the second player to hold, which is attached to the tip of the second arm so as to be slidable in a posture inclined with respect to the second arm. By this, the problem that the height of the first grip held by the first player varies depending on the rotational position of the first arm can be solved by making the attachment position of the first grip movable along the first arm. That is, since the height of the first grip can be moved up and down, when the first arm is rotated, the first grip can slide to an appropriate height according to the rotation angle while the first player is holding it, and it can be easily tilted while being held regardless of the angle of the first arm. The same applies to the second arm side.

[0010] The arm wrestling device according to the third side surface, on any of the above side surfaces, further includes an annular first ring provided around the first shaft that does not rotate even when the first shaft rotates, and an annular second ring provided around the second shaft that does not rotate even when the second shaft rotates. A horizontal slide mechanism that connects the first ring and the second ring so as to be movable in conjunction with each other in the horizontal direction with respect to the housing, and at the rear end of the first shaft, a first tilt mechanism that tiltably connects the first arm to the housing in a direction of approaching or moving away from the housing around a first tilt axis orthogonal to the first rotation axis. The movement of tilting the first arm around the first tilt axis with respect to the housing is transmitted from the first arm to the first ring as a horizontal movement of pulling the first ring toward the first player along the slide mechanism. A first transmission mechanism, at the rear end of the second shaft, a second tilt mechanism that tiltably connects the second arm to the housing in a direction of approaching or moving away from the housing around a second tilt axis orthogonal to the second rotation axis, and the movement of tilting the second arm around the second tilt axis with respect to the housing is transmitted from the second arm to the second ring as a horizontal movement of the second ring moving back and forth from the housing along the slide mechanism. A second transmission mechanism, and the movement of the first player tilting the first arm around the first tilt axis in a direction of pulling it toward himself is converted into a horizontal movement of pulling the first ring toward his own side through the first transmission mechanism, and the horizontal movement of the first ring is transmitted as a horizontal movement of the second ring through the horizontal slide mechanism. The horizontal movement of the second ring is configured to be converted into a movement of tilting the second arm away from the second player through the second transmission mechanism. As a result, the operation of pulling the first arm can be transmitted to the second arm side, and the pulling operation that becomes the feint in arm wrestling can be realized.

[0011] The arm sumo wrestling device according to the fourth side surface, on any of the above side surfaces, the first transmission mechanism includes a first arm joint whose rear end is rotatably connected to the first arm, and a first pin whose rear end is rotatably connected to the tip of the first arm joint. A first flange is provided at the tip of the first pin. While moving the first pin along the inside of the ring of the first ring, a part of the first flange is hooked from the ring of the first ring to the back side. The first flange is hooked inside the ring of the first ring. When the first arm is tilted in the direction of pulling it towards the first player side, the first ring hooked on the first flange is horizontally moved in the direction of being pulled towards the first player side. When the first arm is rotated around the first rotation axis, the first flange of the first pin is configured to move along the inside of the ring of the first ring. The second transmission mechanism includes a second arm joint whose rear end is rotatably connected to the second arm, and a second pin whose rear end is rotatably connected to the tip of the second arm joint. A second flange is provided at the tip of the second pin. While moving the second pin along the inside of the ring of the second ring, a part of the second flange is hooked from the ring of the second ring to the back side. When the second arm is tilted in the direction of pulling it towards the second player side, the second ring hooked on the second flange is horizontally moved in the direction of being pulled towards the second player side. When the second arm is rotated around the second rotation axis, the second flange of the second pin is configured to move along the inside of the ring of the second ring. Thus, the movement of the first arm and the second arm in the rotation direction and the tilting around the tilting axis orthogonal to the rotation axis can be separated, so that while avoiding the situation where an excessive load is applied to the rotation axis and it is screwed off, it is possible to realize with the arm sumo wrestling device the important technique in arm sumo, the action of pulling the arm.

[0012] The arm wrestling device according to the fifth side further includes, on any of the above sides, a first rotary bearing fixed to the rear end of the first shaft and having a first slit of a certain length along the arc direction of the first rotating shaft, a second rotary bearing fixed to the rear end of the second shaft and having a second slit of a certain length along the arc direction of the second rotating shaft, a first clutch with a hole provided at the center through which the first shaft is inserted and rotatably supported around the first shaft, a second clutch with a hole provided at the center through which the second shaft is inserted and rotatably supported around the second shaft, a first weight connected to the first clutch, and a second weight connected to the second clutch. The first clutch has a first protrusion inserted into the first slit, and the second clutch has a second protrusion inserted into the second slit. When the first arm is rotated by a certain angle or more around the first rotating shaft, the edge of the first slit of the first rotary bearing fixed to the first shaft hits the first protrusion, rotating the first clutch, and the weight of the first weight connected to the first clutch acts as a counterweight in the direction of preventing the rotation of the first arm. When the second arm is rotated by a certain angle or more around the second rotating shaft, the edge of the second slit of the second rotary bearing fixed to the second shaft hits the second protrusion, rotating the second clutch, and the weight of the second weight connected to the second clutch acts as a counterweight in the direction of preventing the rotation of the second arm. Thus, when the first player rotates the first arm to an advantageous posture, the weights of the first arm and the second arm acting in the advantageous direction can be reduced by the counterweights, and a fair competition environment can be realized. The same applies to the second player side.

[0013] The arm wrestling device according to the sixth aspect is configured such that, on any of the above-described aspects, when the first arm is not rotated by a certain angle or more about the first rotation axis, the edge of the first slit of the first rotary bearing fixed to the first shaft does not hit the first protrusion, and the first clutch is not connected to the rotation of the first rotary bearing; and when the second arm is not rotated by a certain angle or more about the second rotation axis, the edge of the second slit of the second rotary bearing fixed to the second shaft does not hit the second protrusion, and the second clutch is not connected to the rotation of the second rotary bearing. By activating the counterweight function in this way, it is possible to avoid a situation where a disadvantaged player becomes even more disadvantaged.

[0014] The arm wrestling device according to the seventh aspect is configured such that, on any of the above-described aspects, the first clutch is connected to the first weight by a wire, the second clutch is connected to the second weight by a wire, the housing has through-holes for passing each wire, and the first weight and the second weight can be added or replaced with weights of different weights respectively. By making it possible to adjust the weights of the first weight and the second weight in this way, it is possible to adjust the advantages and disadvantages and handicaps between players.

[0015] The arm wrestling device according to the eighth aspect further includes a digital scale attached to the wire on any of the above-described aspects. By enabling the digital scale to measure the strength of the player's force and displaying the force numerically as needed, the excitement of the competition can be enhanced.

Brief Description of the Drawings

[0016]

Figure 1

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Mode for Carrying Out the Invention

[0017] Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. It should be noted that the present invention is not limited to the following embodiments and examples, and the following is merely an example of the present invention.

[0018] When the first player and the second player play against each other using the arm wrestling apparatus, the present invention aims to suppress the discomfort felt by each player due to pinching the machine. In addition, it realizes the reproduction of more realistic movements, the compactification of the housing, and the provision of strength that can withstand practical use.

[0019] In the following description, an example in which a right-handed first player and a left-handed second player play arm wrestling using the arm wrestling apparatus will be described. Even when the first player is left-handed and the second player is right-handed, the configuration of the present invention can be similarly used by appropriately changing the configuration.

[0020] FIG. 1 shows a side view of the arm sumo battle device according to the embodiment. The arm sumo battle device shown in this figure includes a housing 30, a first arm 2, a second arm 8, a first shaft 14, a second shaft 24, a first gear 4, a second gear 6, and an intermediate gear 5.

[0021] As shown in FIGS. 1, 2, 5, etc., the housing 30 is formed in a box shape. The first arm 2 is provided on the front surface 31 of the box shape, and the second arm 8 is provided on the opposite rear surface 32. The housing 30 is preferably made of a metal such as stainless steel, iron, or aluminum having strength. Also, if necessary, the top surface and side surfaces may be made of a transparent resin so that the inside can be seen. (First Arm 2)

[0022] The first arm 2 is a member for the first player to operate. The first arm 2 is rotatably provided on the front surface 31 of the housing 30. (First Grip 1)

[0023] At the tip of the first arm 2, a first grip 1 for the first player to hold is provided. The first grip 1 is attached so as to be slidable in a posture inclined with respect to the first arm 2. Thereby, the first grip 1 can be held at an appropriate position according to the length of the first player's arm, and the first arm 2 can be operated. Also, the problem that the height of the first grip 1 held by the first player varies depending on the rotational position of the first arm 2 can be solved by making it possible to move the attachment position of the first grip 1 along the first arm 2. That is, since the height of the first grip 1 can be moved up and down, when the first arm 2 is rotated, the first grip 1 can slide to just the right height according to the rotation angle while the first player is holding it, and it can be easily tilted while being held regardless of the angle of the first arm 2.

[0024] The first grip 1 shown in Fig. 2 is not fixed to the first arm 2 by bolts. Instead, by allowing the bolts to slide, it can move freely up and down. This enables adjustment according to the length of the first player's arm. In the example shown in Fig. 7, the first grip 1 is cylindrical as a whole, with a flat plate portion 1a provided at the lower end, and two holes are drilled in the flat plate portion 1a. On the other hand, as shown in Fig. 8, the first arm 2 is cylindrical as a whole, with a groove 2a opened at the upper part. Also, slits 2b are opened in a pair of side walls that form the groove 2a. By inserting the flat plate portion 1a at the lower end of the first grip 1 into the groove 2a at the upper end of the first arm 2 and screwing a bolt into the threaded hole through the slit 2b, the first grip 1 is slidably attached to the first arm 2. The angle at which the first grip 1 is fixed to the first arm 2 is defined by the positions of the two holes. In the example of Fig. 1 etc., it is inclined at about 45 degrees from the horizontal plane. By adopting aluminum for the materials of the first grip 1 and the first arm 2, weight reduction can be achieved. (Second arm 8)

[0025] The second arm 8 is a member for the second player to operate. This second arm 8 is rotatably provided on the rear surface 32 of the housing 30. Also, at the tip of the second arm 8, a second grip 9 for the second player to hold is provided. The second grip 9 is also attached so that it can slide in a posture inclined with respect to the second arm 8. Also, similar to the first arm 2, the second arm 8 can adjust the position of the second grip 9 to an appropriate position according to the length of the second player's arm. Also, being able to correspond to the change in height due to the rotation angle of the second arm 8 is the same as the first arm 2.

[0026] In the example of Fig. 1, the distance between the center of the first grip 1 and the center of the second grip 9 is about 650 mm. Also, the height from the center of the first grip 1 to the bottom surface of the housing 30 is about 310 mm. (First shaft 14)

[0027] The first shaft 14 is a member that serves as the first rotation axis for tilting the first arm 2 left and right with respect to the housing 30. Also, as shown in FIG. 4, a first gear 4 is fixed to the tip of the first shaft 14.

[0028] On the other hand, the second shaft 24 is a member that serves as the second rotation axis for tilting the second arm 8 left and right with respect to the housing 30. The second shaft 24 is provided on the straight line of the first shaft 14. Also, a second gear 6 is fixed to the tip of the second shaft 24. (Intermediate gear 5)

[0029] The intermediate gear 5 is meshed between the first gear 4 and the second gear 6. These first gear 4, second gear 6, and intermediate gear 5 are bevel gears. As shown in FIG. 6, the first gear 4 and the second gear 6 are spaced apart in a facing posture, and the intermediate gear 5 is provided between them in a posture orthogonal to these first gear 4 and second gear 6.

[0030] This arm wrestling battle device transmits the force for tilting the first arm 2 left and right to the first gear 4 by the first shaft 14, and meshes with the second gear 6 via the intermediate gear 5 meshed with the first gear 4 to reverse the direction of the force and transmit the reversed force to the second arm 8. As a result, the rotation of the first arm 2 is transmitted so as to be a reverse rotation on the second arm 8 side, enabling arm wrestling battles between players with different dominant arms.

[0031] Here, consider a format in which the first player holds the first grip 1 with the right arm and the second player holds the second grip 9 with the left arm. When the first player holds the first grip 1 with the right hand as in actual arm wrestling and tilts the first arm 2 to the left as seen from the first player, the second arm 8 on the opposite side tilts to the right as seen from the first player's side, enabling arm wrestling battles with different arms.

[0032] In the example shown in FIG. 6, the input from the left side is on the first player's side. When the first gear 4 on the left side rotates, it meshes with the second gear 6 on the second player's side on the right through the intermediate gear 5 in the center. As a result, the second gear 6 on the second player's side rotates in the opposite direction to the first gear 4 on the first player's side. The force received by the second gear 6 of the second player is transmitted in the order of the second rotary bearing 21, the second support base 7, the second arm 8, and the second grip 9 in the same way as on the first player's side, and is transmitted to the arm of the second player.

[0033] When the first player grips the first grip 1 with the right arm and tilts the arm to the left, due to the mechanism between the gears described above, the second grip 9 on the second player's side tilts in the opposite direction to the first grip 1, that is, to the left as seen from the second player's side. Since the second player is gripping with the left arm, the second player will brace to prevent tilting to the left. In this way, a confrontation between the right arm and the left arm becomes possible.

[0034] In addition, the arm sumo wrestling apparatus is provided with a tilting mechanism for tilting not only the first arm 2 and the second arm 8 but also in the front-rear direction of the housing 30. Specifically, it includes a first tilting mechanism for tilting the first arm 2 and a second tilting mechanism for tilting the second arm 8. (First Tilting Mechanism)

[0035] The first tilting mechanism connects the rear end of the first arm 2 to the rear end side of the first shaft 14. By the first tilting mechanism, the first arm 2 is connected to be tiltable with respect to the housing 30 in a method of approaching or moving away from the housing 30 around a first tilting axis orthogonal to the first rotation axis. Specifically, as shown in FIG. 4, a first rotary bearing 11 is fixed to the rear end of the first shaft 14. The first rotary bearing 11 and the rear end of the first arm 2 are tiltably connected by the first tilting mechanism. The first tilting mechanism is composed of a pair of first support bases 3. The first support base 3 is plate-shaped, sandwiches the rear end of the first arm 2 between two first support bases 3, and tilts the first arm 2 in the front-rear direction through the first tilting axis.

[0036] To form the first tilting axis, a threaded hole is opened at the rear end of the first support base 3. On the other hand, as shown in Fig. 8, two holes are opened at the lower end of the first arm 2. Among these, the lower hole is sandwiched between two first support bases 3, aligned with the hole at the rear end, and screwed together with bolts, thereby forming the first tilting axis. The first arm 2 is connected to the rear end side of the first shaft 14 so as to be tiltable in the front-rear direction.

[0037] The two first support bases 3 are fixed to the back surface of the first rotary bearing 11 with bolts. When the first arm 2 is rotated left or right as viewed from the first player, the first rotary bearing 11 also rotates together. The first rotary bearing 11 is connected directly to the first gear 4 through a shaft as shown in Fig. 4, and serves as a mechanism for transmitting the force of the first player to the first gear 4. (Second Tilting Mechanism)

[0038] Similarly, the second tilting mechanism connects the rear end of the second arm 8 to the rear end side of the second shaft 24. By the second tilting mechanism, the second arm 8 is connected to be tiltable about a second tilting axis orthogonal to the second rotation axis, either approaching or moving away from the housing 30. A second rotary bearing 21 is fixed to the rear end of the second shaft 24. The second rotary bearing 21 and the rear end of the second arm 8 are connected to be tiltable by the second tilting mechanism. The second tilting mechanism is composed of a pair of second support bases 7. The rear end of the second arm 8 is sandwiched between two plate-shaped second support bases 7, and the second arm 8 is tilted in the front-rear direction through the second tilting axis.

[0039] Also, the tilting of the first arm 2 and the tilting of the second arm 8 are interlocked via the first transmission mechanism, the second transmission mechanism, and the horizontal slide mechanism. As a result, the movement of bending and extending the elbow, which is an important technique in arm wrestling, can be reproduced on the arm wrestling battle device. In an actual arm wrestling match, it is an important strategy for a player to bend their own elbow and bring the wrist closer to their own side, and conversely, extend the opponent's elbow, so that it is easier for the player to exert force and more difficult for the opponent to exert force. To reproduce this movement on the arm wrestling battle device, a tilting mechanism is provided that allows the player to bend and extend their elbow, that is, tilt the arm in the front-rear direction as seen by the player, and a mechanism for interlocking the tilting between players is added. This enables the incorporation of more realistic movements.

[0040] To realize such an interlocking function of tilting, the arm wrestling battle device includes, as shown in FIGS. 10 and 11, in addition to the first tilting mechanism and the second tilting mechanism, a first ring 13, a second ring 23, a horizontal slide mechanism, a first transmission mechanism, and a second transmission mechanism. In FIGS. 10 and 11, for the sake of explanation, the illustration of the weights described later is omitted. (First Ring 13)

[0041] The first ring 13 is provided around the first shaft 14 as shown in FIG. 4. The first ring 13 is formed in an annular shape with a circular opening inside. The first ring 13 itself does not rotate. That is, although the first shaft 14 passes through the ring-shaped interior, the first ring 13 does not rotate even when the first shaft 14 is rotated. (Second Ring 23)

[0042] On the other hand, the second ring 23 is also provided around the second shaft 24 in the same manner. The second ring 23 also has a circular outer shape and is formed in an annular shape with a circular opening inside. The second ring 23 also does not rotate, and although the second shaft 24 passes through the ring-shaped interior, the second ring 23 does not rotate even when the second shaft 24 is rotated. (Horizontal Slide Mechanism)

[0043] The horizontal slide mechanism connects the first ring 13 and the second ring 23 so as to move them in conjunction with each other in the horizontal direction with respect to the housing 30. As shown in FIGS. 1, 10, and 11, the horizontal slide mechanism is composed of a guide rail 34 and a guide hole 33. A pair of guide rails 34 are pipe-shaped and fix the left and right sides of the first ring 13 and the second ring 23 respectively. Further, guide holes 33 through which the guide rails 34 pass are opened on the front surface 31 and the rear surface 32 of the housing 30 respectively. By passing the pair of guide rails 34 through the guide holes 33 of the housing 30, the first ring 13 and the second ring 23 fixed to the guide rails 34 can be slid in the horizontal direction. Further, auxiliary rails 35 are provided above and below the guide rail 34 inside the housing 30 in parallel with the guide rail 34 respectively. Furthermore, a support column 36 is fixed to the middle of the guide rail 34 in an intersecting posture, and the upper and lower portions of the support column 36 are slidably locked to the auxiliary rails 35. Thereby, the first ring 13 and the second ring 23 can be slid more stably in the horizontal direction via the guide rail 34. (First transmission mechanism)

[0044] The first transmission mechanism transmits the movement of tilting the first arm 2 in the front-rear direction with respect to the housing 30 via the first tilting axis as a horizontal movement of the first ring 13 moving back and forth from the housing 30 along the horizontal slide mechanism, from the first arm 2 to the first ring 13. By the first transmission mechanism, the first player can pull the first arm 2 towards his own side. This first transmission mechanism is composed of a first arm joint 10 and a first pin 12. The first arm joint 10 is formed in a plate shape with holes opened in the front and rear directions. The rear end of the first arm joint 10 is rotatably connected to the first arm 2. In the example of FIG. 4, a first arm joint rotation axis 2c for connecting the first arm joint 10 is provided above the first tilting axis.

[0045] The first pin 12 has its rear end connected to the tip of the first arm joint 10. At the tip of the first pin 12, a disc-shaped first flange 12a with an outer diameter larger than the diameter of the belly 12b of the first pin 12 is provided. This first pin 12 is formed in a rivet shape as shown in Fig. 9. (Second transmission mechanism)

[0046] The second transmission mechanism transmits the movement of tilting the second arm 8 in the front-rear direction with respect to the housing 30 via the second tilting axis as a horizontal movement of the second ring 23 moving back and forth from the housing 30 along the horizontal slide mechanism, from the second arm 8 to the second ring 23. By the second transmission mechanism, the second player can pull the second arm 8 toward its own side. This second transmission mechanism is composed of a second arm joint 20 and a second pin 22. The second arm joint 20 also has its rear end rotatably connected to the second arm 8, similar to the first arm joint 10. The second pin 22 is also formed in a rivet shape, and its rear end is rotatably connected to the tip of the second arm joint 20. At the tip of the second pin 22, a disc-shaped second flange with an outer diameter larger than the diameter of the belly of the second pin 22 is provided.

[0047] As shown in FIG. 10, the wrist sumo battle device converts the movement of the first player tilting the first arm 2 in the direction of pulling it toward himself around the first tilting axis into a horizontal movement of pulling the first ring 13 toward his own side via the first transmission mechanism, and further transmits the horizontal movement of the first ring 13 as the horizontal movement of the second ring 23 via the horizontal slide mechanism. Furthermore, the horizontal movement of the second ring 23 can be converted into a movement of tilting the second arm 8 in a direction away from the second player via the second transmission mechanism. Thereby, the operation of pulling the first arm 2 can be transmitted to the second arm 8 side, and the pulling operation which is the play of wrist sumo can be realized. Similarly, as shown in FIG. 11, the movement of the second player tilting the second arm 8 in the direction of pulling it toward himself around the second tilting axis is converted into a horizontal movement of pulling the second ring 23 toward his own side via the second transmission mechanism, and further transmits the horizontal movement of the second ring 23 as the horizontal movement of the second ring 23 via the horizontal slide mechanism. Furthermore, the horizontal movement of the second ring 23 can be converted into a movement of tilting the second arm 8 in a direction away from the second player via the second transmission mechanism.

[0048] While realizing such a pulling operation, the arm can also be tilted. At this time, by separating the tilting operation and the pulling operation of the arm, a load such as excessive twisting is not applied to the members constituting the wrist sumo battle device, and the safety and strength can be maintained.

[0049] Specifically, while making the first pin 12 constituting the first transmission mechanism run along the inner side 13a of the ring of the first ring 13, a part of the first flange 12a is hooked from the back side of the ring of the first ring 13. According to this first transmission mechanism, when tilting the first arm 2 in the direction of pulling it toward the first player side as shown in FIG. 10, the first ring 13 hooked on the first flange 12a is horizontally moved in the direction of being pulled toward the first player side. Conversely, when the first ring 13 moves in the direction away from the first player via the second ring 23 and the horizontal slide mechanism from the second player side as shown in FIG. 11, the first ring 13 moves in the direction of pulling the first flange 12a away from the first player.

[0050] On the other hand, when rotating the first arm 2 around the first rotation axis, the flank 12b of the first pin 12 moves along the inner side 13a of the ring of the first ring 13. At this time, the first pin 12 can rotate along the inner side 13a of the first ring 13 without resistance. In this way, the rotational movement of the first arm 2 is not hindered by the tilting of the first arm 2, and the rotation and tilting of the first arm 2 can operate independently.

[0051] Similarly, for the second transmission mechanism, while moving the second pin 22 along the inner side of the ring of the second ring 23, a part of the second flange is hooked from the ring of the second ring 23 to the back side. According to this second transmission mechanism, when tilting the second arm 8 in the direction of pulling it toward the second player side as shown in FIG. 11, the second ring 23 hooked to the second flange is horizontally moved in the direction of being pulled toward the second player side. Conversely, when the second ring 23 moves in the direction away from the second player via the first ring 13 and the horizontal slide mechanism from the first player side as shown in FIG. 10, the second ring 23 moves the second flange in the direction of pulling it away from the second player.

[0052] On the other hand, when rotating the second arm 8 around the second rotation axis, the flank of the second pin 22 moves along the inner side of the ring of the second ring 23. At this time, the second pin 22 can rotate along the inner side of the second ring 23 without resistance. In this way, the rotational movement of the second arm 8 is not hindered by the tilting of the second arm 8, and the rotation and tilting of the second arm 8 can operate independently.

[0053] Also, as a result of being able to separate the movement of the first arm 2 and the second arm 8 in the rotational direction and the tilting around the tilting axis orthogonal to the rotation axis, while avoiding a situation where an excessive load is applied to the rotation axis and it is stripped, it is possible to realize the important technique in arm wrestling, the action of pulling the arm, with the arm wrestling battle device.

[0054] Specifically, in the arm wrestling device of FIG. 2, the first player holds the first grip 1 with the right hand as in actual arm wrestling, and the first player bends and extends the elbow, that is, a mechanism in which the first grip 1 and the first arm 2 move in the front-rear direction as viewed from the first player. With this mechanism, movements closer to reality can be incorporated. In an actual arm wrestling match, bending the elbow and pulling the wrist towards oneself to get into a favorable position are also important maneuvers.

[0055] As shown in FIG. 8, two holes are opened at the lower part of the first arm 2. Among these, the upper hole is used as the first arm joint rotation axis 2c, and as shown in FIGS. 2, 4, etc., the first arm joints 10 are assembled on both sides respectively. The hole at the rear end of the first arm joint 10 is not fixed to the first arm joint rotation axis 2c and can rotate freely. Also, a first pin 12 is connected to the hole at the tip of the first arm joint 10 through a bolt. Further, as shown in FIG. 4, a guide slit 3a is opened along the length direction in the first support base 3, and by passing the tip of the bolt through the guide slit 3a, the first pin 12 is guided to move parallel to the first support base 3. With such a mechanism, the tilting with the first tilting axis output by the first player as the rotation axis is converted into a linear motion in the front and rear directions. The first pin 12 has a shape as shown in FIG. 9, and the first flange 12a at the tip is assembled so as to be hooked from the inside to the open end of the first ring 13 as shown in FIG. 4. When the first pin 12 moves in the forward direction as viewed from the first player, the first flange 12a of the first pin 12 catches on the first ring 13, and the first ring 13 moves together. This first ring 13 is connected to the second ring 23 on the second player side, and the input here is transmitted directly. Conversely, when the second player pulls towards the second player side, the second ring 23 is pulled towards the second player side, and accordingly, the second pin 22 catches, and the arm on the first player side is pulled.

[0056] In wrist sumo, the condition that enables the maximum exertion of arm strength is to bend the elbows as much as possible. Therefore, players will always pull against each other towards their own sides. Thus, this is an essential function for approaching actual movements.

[0057] Also, when viewed from the first player's side, the movement in the front-back direction, that is, the tilting movement around the first tilting axis, transmits force across the first pin 12 and the first ring 13. Also, when the first player tilts to the left or right, the first pin 12 slides along the inner surface of the open end of the first ring 13 to release the force. This enables three-dimensional movement. In this way, each player can engage in give-and-take in the front-back direction while tilting the arm to the left or right, allowing for a more realistic form of movement. Thus, the feature of this embodiment lies in realizing and reproducing three-dimensional movement capable of transmitting pushing and pulling in addition to rotation. This creates an environment that does not give players a sense of discomfort during battles.

[0058] Thus, according to this embodiment, not only can the gear be reversed, but by using a disk to release the rotation of the gear, two-axis movement is possible, and the advantage of being able to have a more realistic confrontation is obtained. In particular, it is possible to perform linear motion in a direction parallel to the rotating main axis and transmit it to the opposite side connected by gears. Specifically, the force output from the player passes through the rotation axis from the handle part, and the direction of the force from one side is reversed via a bevel gear. Also, a disk is placed in the middle part between the handle part and the gear, and the transmission of force is entrusted only to the pins, and the force received from the pins is transmitted to the opposite side by the rails, enabling linear motion in a direction orthogonal to the rotation direction. (Counterweight function)

[0059] Furthermore, the wrist sumo battle device may be provided with a counterweight function that acts in a direction to cancel this when one side becomes advantageous due to the rotation angle of the arm. This can avoid a situation where one player is disadvantaged.

[0060] Fairness is the most important issue in sports. If there is a part that impairs fairness in this embodiment, such unfairness can be eliminated by adding a mechanism to compensate for it. Specifically, when the first player knocks down the first arm 2, the gravity acting on the first grip 1 and the first arm 2 is added, which becomes an advantageous factor for the first player side. Conversely, for the second player, the gravity acting on the second grip 9 and the second arm 8 is added, which becomes a disadvantageous factor. In this way, the dominant side becomes more advantageous and the disadvantaged side becomes more disadvantaged. To eliminate this, a counterweight mechanism is provided.

[0061] The counterweight function is composed of a first clutch 16 provided on the first rotary bearing 11, a first weight 18 connected to the first clutch 16, a second clutch 26 provided on the second rotary bearing 21, and a second weight connected to the second clutch 26.

[0062] As shown in FIG. 4, the first rotary bearing 11 is fixed to the rear end of the first shaft 14. This first rotary bearing 11 has a first slit 11a of a certain length along the arc direction of the first rotary shaft as shown in FIG. 3. (First clutch 16)

[0063] The first clutch 16 has the first shaft 14 inserted through a hole provided at the center and is rotatably supported around the first shaft 14. This first clutch 16 is provided with a first protrusion 15 to be inserted into the first slit 11a. The first protrusion 15 can be composed of a bolt or the like screwed into the first clutch 16.

[0064] When the first arm 2 is rotated about the first rotation axis by a certain angle or more, the edge of the first slit 11a of the first rotary bearing 11 fixed to the first shaft 14 hits the first protrusion 15, rotating the first clutch 16. As a result, the weight of the first weight 18 connected to the first clutch 16 acts as a counterweight that acts in a direction to prevent the rotation of the first arm 2. On the other hand, when the first arm 2 is not rotated about the first rotation axis by a certain angle or more, the edge of the first slit 11a of the first rotary bearing 11 fixed to the first shaft 14 does not hit the first protrusion 15, and the first clutch 16 is not connected to the rotation of the first rotary bearing 11.

[0065] Also, the second rotary bearing 21 is fixed to the rear end of the second shaft 24. Similar to the first rotary bearing 11, this second rotary bearing 21 has a second slit with a certain length along the arc direction of the second rotation axis opened. (Second clutch 26)

[0066] The second clutch 26 has the second shaft 24 inserted through a hole provided at the center and is rotatably supported around the second shaft 24. This second clutch 26 includes a second protrusion 25 that is inserted into the second slit.

[0067] When the second arm 8 is rotated about the second rotation axis by a certain angle or more, the edge of the second slit of the second rotary bearing 21 fixed to the second shaft 24 hits the second protrusion 25, rotating the second clutch 26, and the weight of the second weight connected to the second clutch 26 acts as a counterweight that acts in a direction to prevent the rotation of the second arm 8. On the other hand, when the second arm 8 is not rotated about the second rotation axis by a certain angle or more, the edge of the second slit of the second rotary bearing 21 fixed to the second shaft 24 does not hit the second protrusion 25, and the second clutch 26 is not connected to the rotation of the second rotary bearing 21.

[0068] In this way, when the first player rotates the first arm 2 to an advantageous position, the weights of the first arm 2 and the second arm 8 act in an advantageous direction, which can be reduced by the counterweight, and a fair competition environment can be realized. The same applies to the second player side. Also, the counterweight function can be made to operate only when the arm is tilted at a certain angle so as not to interfere with the competition.

[0069] Furthermore, the first weight 18 and the second weight may be replaceable with weights of different weights respectively, or weights may be added. Thereby, the weights of the first weight 18 and the second weight can be adjusted, and the advantages and disadvantages and handicaps between players can be adjusted.

[0070] The first clutch 16 is connected to the first weight 18 by a wire 40. Also, the second clutch 26 is connected to the second weight by a wire 40. The housing 30 has through holes for passing each wire 40.

[0071] As shown in FIG. 3, the first rotary bearing 11 has two arc-shaped first slits 11a. The first clutch 16 is arranged so that the first protrusion 15 is inserted into each first slit 11a and slid as shown in FIG. 4. In FIG. 4, when the first player grips the first grip 1 and tilts the first arm 2 to his own side, i.e., the left side in the figure, the first protrusion 15 attached to the first clutch 16 catches on the end portion of the arc-shaped first slit 11a of the first rotary bearing 11, and the first clutch 16 reacts. Also, when the first player is at a disadvantage, that is, when the first arm 2 is tilted to the right side in FIG. 4, the first protrusion 15 only slides within the first slit 11a, and the first clutch 16 does not react. In this way, when the first player is in an advantageous position, the first clutch 16 moves in the same motion as the first rotary bearing 11, and when the first player is at a disadvantage, the first clutch 16 remains stationary. By this function, the counterweight reacts only to the player on the advantageous side.

[0072] Also, a hole for passing the wire 40 is provided above the first clutch 16. The wire 40 passed through the first clutch 16 passes through the wire guide 19 in FIG. 5 and is attached to the first weight shaft 17. A first weight 18 is fixed to the rear end of the first weight shaft 17. When the first player grips the first grip 1 with the right arm and tilts it to the left, the first clutch 16 reacts at the same time, and the first weight shaft 17 connected by the wire 40 and the first weight 18 fixed thereto are lifted upward. The total weight of the first weight 18 and the first weight shaft 17 is the weight obtained by adding the weights of the first grip 1, the first arm 2, the second grip 9, and the second arm 8. Thereby, the weights of the first grip 1, the first arm 2, the second grip 9, and the second arm 8 can be canceled out, and the disadvantages caused by the mechanism of the arm wrestling apparatus can be eliminated.

[0073] Furthermore, by adding the weight of the first weight 18, a handicap can also be added, and more diverse competitions can be produced. In addition, it can also be applied to practice. (Digital scale)

[0074] Alternatively, instead of or in addition to the weight at the tip of the wire, a digital scale may be attached. Thereby, the strength of the player's force can be measured with the digital scale, and the fun of the competition can be enhanced by, for example, displaying the force numerically as needed. In addition, by adding a communication function, it is also possible to compete between a plurality of players through a network line based on the force measured by the digital scale.

Explanation of symbols

[0075] 1…First grip; 1a…Flat plate part 2…First arm; 2a…Groove; 2b…Slit; 2c…First arm joint rotation axis 3…First support base; 3a…Guide slit 4…First gear 5…Intermediate gear 6…Second gear 7…Second support base 8…Second arm 9…Second grip 10…First arm joint 11…First rotary bearing; 11a…First slit 12…First pin; 12a…First flange; 12b…Web 13…First ring; 13a…Inner side 14…First shaft 15…First protrusion 16…First clutch 17…First weight shaft 18…First weight 19…Wire guide 20…Second arm joint 21…Second rotary bearing 22…Second pin 23…Second ring 24…Second shaft 25…Second protrusion 26…Second clutch 30…Housing 31…Front side 32…Back side 33…Guide hole 34…Guide rail 35…Auxiliary rail 36…Support column 40…Wire

Claims

1. An arm-wrestling device for allowing a first player and a second player to face each other and compete in arm-wrestling, A housing and a first arm rotatably provided on one surface of the housing for operation by a first player; a second arm rotatably provided on one side of the cabinet opposite to the cabinet for operation by a second player; a first shaft serving as a first rotation axis for tilting the first arm left and right relative to the housing; a second shaft that serves as a second rotation axis for tilting the second arm left and right with respect to the housing and is provided on a straight line with the first shaft; a first gear fixed to an end of the first shaft; a second gear fixed to an end of the second shaft; an intermediate gear meshed between the first gear and the second gear; A first ring is annularly disposed around the first shaft and does not rotate even when the first shaft is rotated; a second ring that is annular and disposed around the second shaft and does not rotate even when the second shaft is rotated; a horizontal slide mechanism that connects the first ring and the second ring to the housing so as to be movable in a horizontal direction in a linked manner; a first tilting mechanism that connects the first arm to a rear end of the first shaft so as to be tiltable about a first tilting axis perpendicular to the first rotation axis in a direction to move the first arm toward or away from the housing; a first transmission mechanism that transmits a motion of tilting the first arm about a first tilting axis relative to the housing from the first arm to the first ring as a horizontal movement in which the first ring moves back and forth from the housing along the horizontal slide mechanism; a second tilting mechanism that connects the second arm to a rear end of the second shaft so as to be tiltable about a second tilting axis perpendicular to the second rotation axis in a direction toward or away from the housing; a second transmission mechanism that transmits a motion of tilting the second arm about the second tilting axis relative to the housing from the second arm to the second ring as a horizontal movement in which the second ring moves back and forth from the housing along the horizontal slide mechanism; An arm wrestling competition device comprising: The first gear, the second gear and the intermediate gear are bevel gears, the first gear and the second gear are spaced apart in a mutually opposing position, and an intermediate gear is meshed therebetween in a position perpendicular to the first gear and the second gear; The force for tilting the first arm left or right is transmitted to the first gear by the first shaft, and the first gear is engaged with the second gear via an intermediate gear that is engaged with the first gear, thereby reversing the direction of the force and transmitting the reversed force to the second arm. An arm-wrestling competition device configured to convert a movement of a first player tilting a first arm around a first tilting axis in a direction pulling the first arm toward himself / herself via a first transmission mechanism into horizontal movement that pulls the first ring toward himself / herself, transmit the horizontal movement of the first ring as horizontal movement of the second ring via a horizontal slide mechanism, and convert the horizontal movement of the second ring into movement that tilts the second arm in a direction away from the second player via a second transmission mechanism.

2. 2. The arm wrestling apparatus according to claim 1, further comprising: a first grip attached to a tip of the first arm so as to be slidable in an inclined position relative to the first arm and to be held by the first player; a second grip attached to a tip of the second arm so as to be slidable in an inclined position relative to the second arm and to be held by a second player; An arm wrestling competition device comprising:

3. 2. The arm wrestling apparatus according to claim 1, The first transmission mechanism is a first arm joint having a rear end rotatably connected to the first arm; The rear end of the first arm joint is connected to the tip of the first pin so as to be freely rotatable. Equipped with A first flange is provided at the tip of the first pin, While the first pin is aligned along the inside of the first ring, a part of the first tsuba is hooked from the first ring to the back side, When the first arm is tilted in a direction to draw it toward the first player, the first ring hooked on the first flange is moved horizontally in a direction to draw it toward the first player, When the first arm is rotated around the first rotation axis, the belly of the first pin is configured to move along the inside of the circular ring of the first ring, The second transmission mechanism is a second arm joint having a rear end rotatably connected to the second arm; The rear end is connected to the tip of the second arm joint and a second pin that is rotatably connected to the tip of the second arm joint. Equipped with A second flange is provided at the tip of the second pin, While the second pin is aligned along the inside of the second ring, a part of the second tsuba is hooked from the second ring to the back side, When the second arm is tilted in a direction to draw the second arm toward the second player, the second ring hooked on the second flange is moved horizontally in a direction to draw the second arm toward the second player, The arm-wrestling device is configured so that when the second arm is rotated around the second rotation axis, the belly of the second pin moves along the inside of the circular ring of the second ring.

4. 2. The arm wrestling apparatus according to claim 1, further comprising: a first rotary bearing fixed to a rear end of the first shaft and having a first slit of a certain length opening along the arc direction of the first rotary shaft; a second rotary bearing fixed to a rear end of the second shaft and having a second slit of a certain length opening along the arc direction of the second rotary shaft; a first clutch having a first shaft inserted through a hole provided in the center and supported rotatably around the first shaft; a second clutch having a second shaft inserted through a hole provided in the center and supported rotatably around the second shaft; a first weight connected to the first clutch; a second weight connected to the second clutch; Equipped with the first clutch includes a first projection inserted into the first slit; the second clutch includes a second projection inserted into the second slit; When the first arm is rotated about the first rotation axis by a certain angle or more, an edge of the first slit in the first rotation bearing fixed to the first shaft hits the first protrusion, causing the first clutch to rotate, and the weight of the first weight connected to the first clutch acts as a counterweight acting in a direction that prevents the rotation of the first arm, When the second arm is rotated about the second rotation axis by a certain angle or more, the edge of the second slit of the second rotation bearing fixed to the second shaft hits the second protrusion, rotating the second clutch, and the weight of the second weight connected to the second clutch acts as a counterweight acting in a direction that hinders the rotation of the second arm. This arm-wrestling device is configured as follows.

5. 5. The arm wrestling apparatus according to claim 4, When the first arm is not rotated about the first rotation axis by more than a certain angle, the edge of the first slit of the first rotation bearing fixed to the first shaft does not come into contact with the first protrusion, and the first clutch is not connected to the rotation of the first rotation bearing, This arm-wrestling device is configured so that, when the second arm is not rotated around the second rotation axis by more than a certain angle, the edge of the second slit in the second rotation bearing fixed to the second shaft does not come into contact with the second protrusion, and the second clutch is not connected to the rotation of the second rotation bearing.

6. 6. The arm wrestling apparatus according to claim 5, The first clutch is connected to the first weight by a wire, The second clutch is connected to the second weight by a wire, The housing has holes for passing each wire through. In the arm-wrestling device, the first weight and the second weight are each capable of being added or replaced with weights different from each other.

7. The arm wrestling apparatus according to claim 4, further comprising: An arm-wrestling device with a digital scale attached to a wire.

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