JP5871219B1 - Electric wheelchair for sports competition - Google Patents

Abstract

An electric wheelchair suitable for a sports competition such as wheelchair fencing is provided. An electric wheelchair used in a sporting event, comprising a right front edge 11b extending in a diagonally backward right direction and a left front edge 11c extending in a diagonally backward left direction from a top portion 11a which is a front end in a plan view. And a grip portion 14 provided behind the seat portion 11 in a plan view and positioned at the height of the waist of the athlete sitting on the seat portion 11 and gripped by the athlete during the competition. [Selection] Figure 1

Description

  The present invention relates to an electric wheelchair used in sports competitions such as wheelchair fencing.

  In “Wheelchair Fencing” which is one of the Paralympic events, a pedestal is fixed to a piste (competition surface), a wheelchair is fixed to the opponent at an angle of 110 ° to the opponent, and the athlete sits on the wheelchair. Manipulate the sword. Since the wheelchair is fixed, the competitor cannot move and get in time. In fencing for healthy people, troopers often win against big men by making full use of footwork, but in wheelchair fencing that cannot use footwork, there is almost no such thing. After all, long-skilled people are very advantageous, and in many cases big players win.

  The inventor who has participated in the national competition of fencing as a representative of his / her home prefecture believes that the best part of fencing is only by using his footwork. Therefore, "wheelchair fencing" using an electric wheelchair is proposed. Conventional electric wheelchairs include Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4.

JP 2000-84009 A JP 2004-65826 A Japanese Patent Laid-Open No. 10-220 JP 2011-142938 A

  However, when these electric wheelchairs are used to face the opponent player in an oblique direction, it is very difficult to control the opponent player so as to be in time. There are no electric wheelchairs suitable for sports competitions such as fencing.

  The present invention has been made paying attention to such conventional problems. An object of the present invention is to provide an electric wheelchair suitable for sports competition such as wheelchair fencing.

  The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected, it is not limited to this. Further, the configuration described with reference numerals may be appropriately replaced or improved.

The first invention is an electric wheelchair used in fencing, kendo, or short kendo , and has a right front edge (11b) extending in a diagonally backward right direction from a top portion (11a) serving as a front end in a plan view and a diagonally backward left direction. extending left front edge (11c) and the seat portion containing the (11), located in the seat portion (11) behind the a and the height of the waist riders sitting on the seat portion (11) of in a plan view It is an electric wheelchair that is fixed to the body and has a grip portion (14) that is held by the athlete during the competition.
The second invention is an electric wheelchair used in a sports competition, and has a right front edge (11b) extending in a diagonally rearward direction from a top portion (11a) serving as a front end in a plan view and a left front edge extending in a diagonally backward left direction ( 11c) and a body (10) positioned at the waist level of the athlete sitting behind the seat (11) and sitting on the seat (11) in plan view. It is an electric wheelchair that is fixed to the vehicle and has a grip portion (14) that is held by the athlete during the competition.

According to a third invention, in the first or second invention, the seat portion (11) is an electric wheelchair capable of rotating a predetermined angle in a plan view.

According to a fourth invention, in any one of the first to third inventions, a detachable footrest part (12) is provided on either the right front edge (11b) or the left front edge (11c) of the seat part (11). It has an electric wheelchair.

5th invention is provided in the vicinity of the said grip part (14) in any one of 1st to 4th invention, and it can be operated by the player who held the grip part (14) during the competition This is an electric wheelchair having a simple control stick (15).

A sixth invention is the electric wheelchair according to the fifth invention, wherein the control stick (15) is two and is disposed near both ends of the grip portion (14).

In a seventh aspect based on the fifth aspect , the grip portion (14) comprises three bodies, a right grip (14R), a left grip (14L), and a center grip (14C), and the control stick (15) There are three electric wheelchairs arranged near the front end of the right grip (14R), near the front end of the left grip (14L), and near the center of the central grip (14C).

In an eighth aspect based on the fifth aspect , the grip portion (14) is on the center line of the electric wheelchair and extends in the front-rear direction of the electric wheelchair, and the control stick (15) 14) The electric wheelchair arranged near the front end.

In a ninth aspect based on the fifth aspect , the body (10) of the electric wheelchair is formed with a plurality of sets of holes (104, 105) into which the grip portion (14) and the control stick (15) can be inserted. The grip portion (14) and the control stick (15) are electrically fixed by inserting one of the plurality of sets of holes (104, 105) into one set of holes (104, 105). It is a wheelchair.

The tenth invention is the electric cable connector according to any one of the first to ninth inventions, wherein the electric cable connector 51 is provided behind the grip portion (14) and is connected to the electric cable (51) extending from the reel (50). And a body cord connector portion (161) for connecting a body cord (41) connected to the electric sword (30) while being electrically connected to the electric cable connector portion (162). It is a wheelchair.

In an eleventh aspect of the present invention, in any one of the first to tenth aspects, the control stick (315) is provided in the electric sword (30), and a signal output from the control stick (315) is transmitted. The electric wheelchair has a control cable connector (160) for connecting the control cable (40).

In a twelfth aspect of the invention according to any one of the first to eleventh aspects, an angle of 45 degrees with respect to the drive axle (200) when viewed from a direction passing through the central axis of the drive axle (200). It is an electric wheelchair including four drive wheels provided with a plurality of rollers (201) inclined so as to form a circle.

In a thirteenth aspect of the present invention, in any one of the tenth to twelfth aspects, the driving battery is not mounted, and driving electric power is supplied from the outside via the electric cable connector portion (162). It is an electric wheelchair.

A fourteenth aspect of the invention is an electric wheelchair having a color lamp portion (101) that serves as an electric judge in any of the first to thirteenth aspects of the invention.

  According to this aspect, it is possible to face the opponent player in an oblique direction simply by sitting normally, and it is easy to steer the opponent player.

FIG. 1 is a plan view showing a first embodiment of an electric wheelchair 1 used in a sports competition such as wheelchair fencing. FIG. 2 is a perspective view showing a state in which the footrest 12 is attached under the right front edge 11 b of the electric wheelchair 1. FIG. 3 is a perspective view showing a state in which the footrest 12 is attached below the left front edge 11 c of the electric wheelchair 1. FIG. 4 is a perspective view showing the electric sword 30. FIG. 5 is a diagram illustrating a state where various electric cords are attached to the electric wheelchair 1. FIG. 6 is a diagram illustrating a method of using the electric wheelchair 1. FIG. 7 is a diagram showing a case where the electric cable 51 extending from the reel (electric cable winder) 50 is connected to the body cord connector 321 of the electric sword 30. FIG. 8 is a view showing a variation of the grip portion 14. FIG. 9 is a diagram showing another variation of the grip portion 14. FIG. 10 is a view showing still another variation of the grip portion 14. FIG. 11 is a diagram showing a variation of a mechanism for finely adjusting the position of the sheet portion 11. FIG. 12 is a plan view showing a variation of the traveling unit 2 of the electric wheelchair 1. FIG. 13 is a perspective view showing a variation of the traveling unit 2 of the electric wheelchair 1.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a plan view showing a first embodiment of an electric wheelchair 1 used in a sports competition such as wheelchair fencing. FIG. 2 is a perspective view showing a state in which the footrest 12 is attached under the right front edge 11 b of the electric wheelchair 1. FIG. 3 is a perspective view showing a state in which the footrest 12 is attached below the left front edge 11 c of the electric wheelchair 1.

  As shown in FIG. 1, the electric wheelchair 1 has a substantially oval outer shape in plan view. And the seat part 11 is arrange | positioned from the center part of the electric wheelchair 1 to the some front side of the advancing direction. As shown in FIG. 2, the seat portion 11 is disposed on a pedestal portion 110 formed continuously with the body 10. And on this pedestal part 110, it can rotate by a predetermined angle. In FIG. 1, it rotates 15 degrees to the left and right with respect to the neutral position. The position can be fixed every 5 degrees. In addition, what is necessary is just to apply a well-known thing as a concrete structure which fixes a position every 5 degree | times, For example, if a hole is formed every 5 degree | times and it fixes by inserting a pin in the hole, Good. If it does in this way, the position of the sheet | seat part 11 can be fixed reliably. Alternatively, a recess may be formed every 5 degrees, and a metal ball or the like may be pressed against the recess by a spring. In this way, the position of the sheet part 11 can be easily changed. By doing in this way, the position of the seat part 11 can be finely adjusted, and it can match a player's preference.

  As shown in FIG. 1, the sheet portion 11 has a substantially rhombus (substantially square) shape, and when set at a neutral position, one top portion 11 a becomes the front end. A right front edge 11b extends obliquely rearward from the top 11a. Further, a left front edge 11c extends obliquely leftward and rearward from the top portion 11a.

  A saddle-shaped metal fitting (saddle band) is attached below the right front edge 11b and the left front edge 11c of the seat portion 11 (not shown). A footrest 12 made of a metal pipe or a metal shaft is inserted and fixed to a saddle-shaped metal fitting (saddle band) of either the right front edge 11b or the left front edge 11c (see FIGS. 2 and 3). As a fixing method, a pin may be inserted and fixed in a hole formed in the footrest 12, or a screw thread may be formed in the footrest 12 and fixed with a nut. In FIG.1 and FIG.2, the footrest 12 is attached under the right front edge 11b. In FIG. 3, the footrest 12 is attached below the left front edge 11c. As will be described later, a player who operates the electric sword 30 with his left hand sits with his foot on the right front edge 11b, and a player who operates the electric sword 30 with his right hand sits with his foot on the left front edge 11c. Thus, the footrest 12 is detachably attached to the right front edge 11b and the left front edge 11c in accordance with the player.

  Further, as shown in FIGS. 2 and 3, a leg fixing band 13 is passed under the right front edge 11b and the left front edge 11c where the footrest 12 is not attached.

  Further, as shown in FIG. 1, a grip portion 14 is provided behind the seat portion 11 in a plan view. As shown in FIG. 6, the grip portion 14 is located at the waist level of the athlete sitting on the seat portion 11. Although the shape of the grip part 14 is not specifically limited, in FIG. 1, it is located in the back of the sheet | seat part 11 in planar view, and has become the substantially V shape along the sheet | seat part 11. FIG. A control stick 15 (15R and 15L) is provided near both ends of the grip portion 14. The player can operate the control stick 15 (15R, 15L) while holding the grip portion 14.

  As shown in FIG. 1, a control cable connector 160, a body cord connector 161, and an electric cable connector 162 are provided behind the grip 14 in plan view. As will be described later, the control cable 40 connected to the electric sword 30 is connected to the control cable connector 160. A body cord 41 connected to the electric sword 30 is connected to the body cord connector portion 161. An electric cable 51 extending from a reel (electric cable winder) 50 is connected to the electric cable connector portion 162. The body code connector portion 161 and the electric cable connector portion 162 are electrically connected. The electric cable 51 may have a double structure, and driving electricity (for example, 12V or 24V DC electricity) may be supplied from the outside. In this way, since it is not necessary to mount a battery on the electric wheelchair 1, the electric wheelchair 1 can be reduced in weight. Also, the battery will not run out even if the competition time increases.

  An emergency stop switch 17 is provided on the upper portion of the body 10. In this embodiment, three emergency stop switches 17 are provided as shown in FIG. If any one of the emergency stop switches 17 is pressed, the supply of electricity to the drive wheels 20 is stopped and the electric wheelchair 1 is stopped. Thus, in the unlikely event that a plurality of switches 17 are provided on the upper portion of the body 10, not only the competitors but also the judges can operate the switches 17, and the drive wheels 20 can be securely connected. Can be stopped. Further, as shown in FIGS. 2 and 3, a collision prevention sensor 18 is provided at the lower portion of the body 10. Since the collision prevention sensor 18 is provided, the power supply to the driving wheel 20 is stopped when the player is too close to the electric wheelchair of the competitor, thereby ensuring the safety of the athlete.

  The body 10 is provided with a color lamp portion 101. In the present embodiment, the color lamp portion 101 is formed in a strip shape so as to cross the body 10. The color lamp unit 101 plays the role of an electric umpire (color lamp) installed in the fixie. The color lamp unit 101 is white / red together with the electric umpire (color lamp) instead of or in conjunction with the electric umpire (color lamp) installed on the fixie.・ Lit green. With such a configuration, it becomes easier for the spectator who is not used to the competition to understand the winner's victory or defeat. The shape, size, quantity, etc., of the color lamp unit 101 are merely examples. It can be changed as appropriate.

  The wheels (drive wheel 20 and driven wheel 21) of the electric wheelchair 1 are hidden in the body 10, but ordinary ones may be used. Various in-wheel motor-driven wheel units for electric wheelchairs with various sizes (wheel diameters) with motors built into the wheels are commercially available from various manufacturers. If such a unit is used, the drive wheel 20 can be produced easily. If the spokes of the wheels are bare, the competitor's sword 30 may be stuck in the spokes or not pulled out. If you try to force it out, you will not be able to physically compete, such as bending or breaking. On the other hand, in this embodiment, since the wheel (drive wheel 20, driven wheel 21) of the electric wheelchair 1 is hidden in the body 10, it is possible to safely advance the competition without falling into such a situation. it can.

  In addition, by providing a breaker between the motor and the battery, safety is ensured even if an excessive current flows from the battery.

  As shown in FIGS. 2 and 3, a clasp 19 is provided on the seat rear wall 10 a of the body 10. As will be described later, the athlete is fixed to the electric wheelchair 1 by connecting a body fixing band 190 to the clasp 19. Further, the seat rear wall 10a functions to stabilize the position of the athlete's waist so that it does not shift too far backward.

  FIG. 4 is a perspective view showing the electric sword 30.

  The electric sword 30 mainly includes a hilt 31, a guard 32, and a blade 33.

  The hilt 31 is a part held by the athlete. The front end portion of the hilt 31 is abutted against the guard 32, and the blade 33 penetrates the guard 32 and is inserted into the hilt 31 to be fixed. A control stick (joystick) 315 is attached to the front end portion of the hilt 31. Some athletes have difficulty operating the control stick 15 (15R, 15L) in the vicinity of the grip portion 14. Such a player controls the electric wheelchair 1 with the control stick 315.

  As shown in FIG. 4, a body code connector 321 and a control cable connector 322 are provided on the back side of the guard 32. The body code 41 is connected to the body code connector 321. The control cable connector 322 is connected to a control cable for taking out a signal from the control stick 315. A cushion 320 is arranged so as to hide the cords and cables.

  FIG. 5 is a diagram illustrating a state where various electric cords are attached to the electric wheelchair 1.

  A body cord 41 connected to the electric sword 30 is connected to the body cord connector portion 161 of the electric wheelchair 1. In addition, an electric cable 51 extending from a reel (electric cable winder) 50 is connected to the electric cable connector 162. If necessary, the control cable 40 connected to the electric sword 30 is connected to the control cable connector 160. When the control cable 40 is connected to the control cable connector 160, the operation signal from the control stick 15 becomes invalid and the electric wheelchair 1 is operated by the control stick 315 (override system).

  FIG. 6 is a diagram illustrating a method of using the electric wheelchair 1. Various electrical cords and cables are omitted in order to avoid complicated drawings.

  As shown in FIG. 6, the athlete who operates the electric sword 30 with his left hand attaches the footrest 12 to the right front edge 11b and sits so that his / her foot is on the right front edge 11b. Then, both legs are fixed by the leg fixing band 13 and the body fixing band 190 is connected to the clasp 19. In this way, the athlete is fixed to the electric wheelchair 1. Then, the control stick 15 (15R) is operated while holding the grip portion 14 with the right hand.

  As described above, the seat portion 11 of the electric wheelchair 1 according to the present embodiment includes the right front edge 11b extending in the diagonally backward right direction and the left front edge extending in the diagonally backward left direction from the top portion 11a that is the front end in the traveling direction of the electric wheelchair in plan view. 11c. The player can hold the arm that operates the electric sword 30 close to the opponent player by simply sitting so that the right front edge 11b or the left front edge 11c has a foot. There has been a competition called “wheelchair fencing” in the past, but there is no electric wheelchair suitable for fencing, and the wheelchair was fixed obliquely to the opponent. Even with an electric wheelchair, there is only one that faces the opponent, and if it was attempted to move by fencing using the electric wheelchair, it was very difficult to control. On the other hand, the seat portion 11 of the electric wheelchair 1 of the present embodiment includes a right front edge 11b extending from the top portion 11a in the diagonally backward right direction and a left front edge 11c extending in the diagonally backward left direction. The player can be held at an angle with respect to the opponent player simply by sitting with the right front edge 11b or the left front edge 11c. If the vehicle moves forward and backward in this state, it is easy to take a time for the opponent player and the maneuvering is easy.

  And since the grip part 14 is provided so that it may be located behind the seat part 11 and at the height of the athlete sitting on the seat part 11, the athlete moves the upper body during the competition. Since the grip portion 14 can be balanced and joysticks 15R and 15L are provided in the vicinity of the grip portion 14, the athlete can hold the grip portion 14 during the competition. Since the favorite control sticks (joysticks) 15R and 15L can be operated, it is suitable for both right-handed and left-handed players. In addition, if the electric wheelchair 1 has a backrest and the grip portion 14 is positioned on the backrest, it is difficult for the athlete to grip the grip portion 14 while moving the upper body. 1, since the grip portion 14 is arranged at a low position of the waist of the athlete sitting on the seat portion 11, the athlete grasps the grip portion 14 while moving the upper body during the competition and balances it. It is easy to take.

  The seat portion 11 can be rotated by a predetermined angle on the pedestal portion 110. Thereby, the athlete can finely adjust the position of the seat portion 11 so as to suit his / her preference.

  The footrest 12 attached to the seat part 11 is detachable to both the right front edge 11b and the left front edge 11c of the seat part 11. Although the electric wheelchair 1 of the present embodiment has a small pivotable angle of the seat portion 11, a player who operates the electric sword 30 with the left hand can operate the electric sword 30 with the right hand by changing the mounting position of the footrest 12. Even the athlete can use the electric wheelchair 1 of the present embodiment.

  A leg fixing band 13 is passed below the right front edge 11b and the left front edge 11c where the footrest 12 is not attached. By fixing the legs with the leg fixing band 13, even if the athlete moves the upper body violently, it is difficult to fall from the electric wheelchair 1. Furthermore, the athlete connects the body fixing band 190 to the clasp 19, so that the athlete is fixed to the electric wheelchair 1 and becomes more difficult to fall, and the safety of the athlete is ensured.

  An emergency stop switch 17 is provided on the upper portion of the body 10. When the emergency stop switch 17 is pressed, the supply of electricity to the drive wheels 20 is stopped and the electric wheelchair 1 is stopped. In the unlikely event that the emergency stop switch 17 is provided on the upper portion of the body 10, not only the athlete but also a judge or the like can operate the switch 17 to ensure the safety of the athlete.

  A collision prevention sensor 18 is provided at the lower portion of the body 10. Since the collision prevention sensor 18 is provided, the power supply to the driving wheel 20 is stopped when the player is too close to the electric wheelchair of the competitor, thereby ensuring the safety of the athlete.

  Conventionally, the electric cable 51 extending from the reel (electric cable winder) 50 has been connected to the body cord connector 321 of the electric sword 30, as shown in FIG. When such a thing is used for fencing of an electric wheelchair, the electric cable 51 expands and contracts by the force of the spring spring provided inside the reel (electric cable winder) 50 as the electric wheelchair moves forward and backward. It is a hindrance for the competitors. On the other hand, in the present embodiment, as shown in FIG. 5, an electric cable 51 extending from a reel (electric cable winder) 50 is connected to the electric cable connector portion 162 and connected to the electric sword 30. The body cord 41 is connected to the body cord connector portion 161. In this way, the relative positional relationship between the athlete and the body code 41 becomes constant, so that the athlete does not feel bothered. In the method of FIG. 7, the electric cable 51 is long, and in particular, the electric cable 51 coming out of the athlete is hung on the reel 50 by hanging from the top of the body 10 on a fixie. The electric cable 51 on the body 10 is easy to move (prone to be violent), and when the speed at which the electric cable 51 is wound is reduced due to the reel 50 sag or the like, the electric cable 51 is easily bent. If the electric wheelchair moves backward in this state, the electric cable 51 may be stepped on or caught in the body 10 or the drive wheel 20. On the other hand, according to the present embodiment, the electric cable 51 is not provided on the body 10, and the electric cable 51 can be shortened. The electric cable 51 can be stepped on, interfered with, or caught by the body 10 or the driving wheel 20. It becomes easy to prevent that.

  Moreover, if the electric cable 51 is made into a double structure and electricity for driving is supplied from the outside, it is not necessary to mount a battery on the electric wheelchair 1, so that the electric wheelchair 1 can be reduced in weight. Also, the battery will not run out even if the competition time increases.

  Furthermore, since the body 10 is provided with the color lamp portion 101, it is easy for the spectator who is not used to the competition to easily determine the winner or defeat of the athlete.

(Second Embodiment)
FIG. 8 is a view showing a variation of the grip portion 14.

  In the following description, parts having the same functions as those described above are denoted by the same reference numerals, and redundant description is omitted as appropriate.

  In this embodiment, the grip portion is divided into three bodies: a right grip 14R, a left grip 14L, and a center grip 14C. In the vicinity of each grip, joysticks 15R, 15L, and 15C are arranged.

  Some athletes want to grip the grip part directly behind. By providing the three grips 14R, 14L, and 14C as in the present embodiment, the choices of grips that can be gripped by the athlete are expanded, so that it is possible to further match the preference of the athlete. Further, by reducing the size of each grip 14R, 14L, 14C, the rigidity becomes high, and it is difficult to deform even if operated by a strong player.

(Third embodiment)
FIG. 9 is a diagram showing another variation of the grip portion 14.

  In this embodiment, the grip part 14 is extended in the front-back direction of the electric wheelchair 1 on the center line of the electric wheelchair 1 and behind the athlete.

  Some athletes want to grip a grip that extends in the back-and-forth direction directly behind. By doing like this embodiment, it can be matched more with a player's preference.

(Fourth embodiment)
FIG. 10 is a view showing still another variation of the grip portion 14.

  In this embodiment, a plurality of sets of holes 104 and 105 into which the grip part 14 and the control stick 15 can be inserted are formed in the body 10. And while inserting the grip part 14 in the hole 104 and fixing, and inserting and fixing the control stick 15 in the hole 105, the position of the grip part 14 and the control stick 15 can be changed freely. In FIG. 10, the grip part 14 is attached to a position corresponding to the right grip 14R of the second embodiment (FIG. 8). As a method for fixing the grip part 14 and the control stick 15, a screw thread is formed at the tip of the grip part 14 and the control stick 15 and penetrates through the hole 104 and the hole 105. It should be fixed with.

  In this way, it is not necessary to increase the grip portion 14 and the control stick 15 unnecessarily, and the cost can be reduced.

(Fifth embodiment)
FIG. 11 is a diagram showing a variation of a mechanism for finely adjusting the position of the sheet portion 11.

  As shown in FIG. 11, a fan-shaped gear 111 is fixed on the lower surface of the seat portion 11, the gear 112 meshes with the gear 111, and the gear 113 meshes with the gear 112. Thus, when the gear 113 is rotated, the gear 112 is rotated and the gear 111 is rotated. Further, since the gear ratio is large, each gear does not move even if a force is applied to the seat portion 11 to rotate it. Accordingly, the seat portion 11 is fixed. If a handle is attached to the gear 113 to make it a manual type, the weight is light and the manufacturing cost is low. Further, if a motor is attached to the gear 113 to make it electric, even a weak person can easily operate it.

  The gear 113 may be a lock gear that slides in the axial direction. In this case, the lock gear 113 is released in the axial direction, and the gear 112 is rotated to adjust the position of the gear 111 (seat portion 11). When the desired position is reached, the lock gear 113 is engaged with the gear 112 to fix the position of the gear 111 (seat portion 11).

  By doing so, it becomes easier to adjust the position of the sheet portion 11. In addition, the adjustment range is expanded. In the case of FIG. 11, since the movable range of the gear 111 (seat portion 11) is about 120 degrees, even if the footrest 12 is a fixed type that cannot be detached from the seat portion 11, the athlete operating the electric sword 30 with the left hand It is also possible to handle a competitor who operates the electric sword 30 with the right hand.

(Sixth embodiment)
FIG. 12 is a plan view showing a variation of the traveling unit 2 of the electric wheelchair 1. FIG. 13 is a perspective view showing a variation of the traveling unit 2 of the electric wheelchair 1.

  For example, as disclosed in JP 2011-142972 A, a four-wheel drive wheelchair is known. Also in the electric wheelchair 1 of the present invention, a motor corresponding to each driving wheel (the right front driving wheel 20FR, the left front driving wheel 20FL, the right rear driving wheel 20RR, the left rear driving wheel 20RL) can be provided as a four wheel driving type. Good.

  In this embodiment, each drive wheel (right front drive wheel 20FR, left front drive wheel 20FL, right rear drive wheel 20RR, left rear drive wheel 20RL) has a plurality of rollers (12 in this sixth embodiment). 201 is rotatably attached. The roller 201 has a driving axle 200 (right front drive) when viewed from the direction passing through the central axis of the driving axle 200 (right front driving axle 200FR, left front driving axle 200FL, right rear driving axle 200RR, left rear driving axle 200RL). The vehicle is inclined at an angle of 45 degrees with respect to the axle 200FR, the left front drive axle 200FL, the right rear drive axle 200RR, and the left rear drive axle 200RL.

  When such a structure is employed, the left front drive wheel 20FL is rotated to the right and the left rear drive wheel 20RL is rotated to the left as indicated by an arrow in FIG. That is, the left front driving wheel 20FL and the left rear driving wheel 20RL are rotated inward. At the same time, the right front drive wheel 20FR and the right rear drive wheel 20RR are rotated outward. Then, as shown by a thick arrow in FIG. 13, the traveling unit 2 moves to the left.

  The left front driving wheel 20FL and the left rear driving wheel 20RL are rotated in the same direction as the left rear driving wheel 20RL in FIG. 13, and the right front driving wheel 20FR and the right rear driving wheel 20RR are rotated in the same direction as the right front driving wheel 20FR in FIG. If it rotates, traveling unit part 2 will move forward.

  Further, the left front driving wheel 20FL and the left rear driving wheel 20RL are rotated in the same direction as the left rear driving wheel 20RL in FIG. 13, and the right front driving wheel 20FR and the right rear driving wheel 20RR are rotated in the same direction as the right rear driving wheel 20RR in FIG. , The traveling unit 2 turns right on the spot (super turning).

  If such a traveling unit part 2 is adopted in the electric wheelchair 1, the electric wheelchair 1 can be moved directly beside the player, and the variation in which the athlete moves increases, making the competition more interesting.

  The embodiment of the present invention has been described above. However, the above embodiment only shows a part of application examples of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. Absent.

  For example, the form of the drive wheel (traveling unit portion) is not limited to the type described above. Various things used for an electric wheelchair can be applied.

  Moreover, the specific shape, size, quantity, etc. of each part of the electric wheelchair 1 are only examples. What is necessary is just to change suitably.

  In the above description, the case where the electric wheelchair 1 is used for “fencing” has been described. However, the present invention is not limited to this, and can be suitably used for sports such as kendo and short kendo.

  The above embodiments can be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Sports competition electric wheelchair 10 Body 101 Color lamp part 11 Seat part 11a Top part 11b Right front edge 11c Left front edge 12 Footrest part 14 Grip part 14R Right grip 14L Left grip 14C Center grip 15 Control stick (joystick)
2 traveling unit 20 driving wheel 20FR right front driving wheel 20FL left front driving wheel 20RR right rear driving wheel 20RL left rear driving wheel 200 (200FR, 200FL, 200RR, 200RL) driving axle 201 roller 21 driven wheel 30 electric sword 315 control rod 40 control Cable 41 Body code 50 Reel (Electric cable winder)
51 Electric cable 160 Control cable connector 161 Body code connector 162 Electric cable connector

Claims (14)

An electric wheelchair used in fencing or kendo or short kendo ,
A seat portion including a right front edge extending in a diagonally right rear direction and a left front edge extending in a diagonally backward left direction from a top portion which is a front end in a plan view;
A grip portion that is provided behind the seat portion in a plan view and positioned at the waist level of the athlete sitting on the seat portion, and gripped by the athlete during the competition;
Electric wheelchair with. An electric wheelchair used in sports competitions,
A seat portion including a right front edge extending in a diagonally right rear direction and a left front edge extending in a diagonally backward left direction from a top portion which is a front end in a plan view;
A grip portion that is positioned behind the seat portion in a plan view and is fixed to the body at a waist level of the athlete sitting on the seat portion, and gripped by the athlete during the competition;
Electric wheelchair with. In the electric wheelchair according to claim 1 or 2 ,
The seat portion is rotatable by a predetermined angle in plan view.
Electric wheelchair. In the electric wheelchair according to any one of claims 1 to 3 ,
It has a detachable footrest part on either the right front edge or the left front edge of the seat part,
Electric wheelchair. In the electric wheelchair according to any one of claims 1 to 4 ,
A control stick that is provided in the vicinity of the grip portion and that can be operated with a hand held by the athlete during the competition;
Electric wheelchair. The electric wheelchair according to claim 5 ,
The control sticks are two and are arranged near both ends of the grip part.
Electric wheelchair. The electric wheelchair according to claim 5 ,
The grip part consists of three bodies, a right grip, a left grip, and a center grip.
The control sticks are three, and are arranged near the front end of the right grip, near the front end of the left grip, and near the center of the central grip.
Electric wheelchair. The electric wheelchair according to claim 5 ,
The grip portion is on the center line of the electric wheelchair and extends in the front-rear direction of the electric wheelchair,
The control stick is disposed near the front end of the grip portion,
Electric wheelchair. The electric wheelchair according to claim 5 ,
In the body of the electric wheelchair, a plurality of sets of holes into which the grip portion and the control stick can be inserted are formed,
The grip portion and the control stick are fixed by being inserted into one set of holes among the plurality of sets of holes.
Electric wheelchair. In the electric wheelchair according to any one of claims 1 to 9 ,
An electric cable connector portion provided behind the grip portion and connected to an electric cable extending from the reel;
A body cord connector portion that is electrically connected to the electrical cable connector portion and connects a body cord connected to an electric sword;
Electric wheelchair with. In the electric wheelchair according to any one of claims 1 to 10 ,
The electric sword is provided with a control stick, and has a control cable connector portion for connecting a control cable for transmitting a signal output from the control stick.
Electric wheelchair. In the electric wheelchair according to any one of claims 1 to 11 ,
Including four drive wheels provided with a plurality of rollers inclined to form an angle of 45 degrees with respect to the drive axle when viewed from the direction passing through the central axis of the drive axle;
Electric wheelchair. In the electric wheelchair according to any one of claims 10 to 12 ,
Driving battery is not mounted, and driving electricity is supplied from the outside through the electric cable connector part.
Electric wheelchair. In the electric wheelchair according to any one of claims 1 to 13 ,
It has a color lamp that acts as an electric referee,
Electric wheelchair.

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