JP3158140U - Bicycle for the handicapped - Google Patents

Abstract

Disclosed is a bicycle for a handicapped person that can be driven by a handicapped person with a disability on one hand and a limb. SOLUTION: A handle 4 is operated by wire operation with a hand drive mechanism 7 for driving a rear wheel 3 by a hand turning lever 7a provided at a side position of the chair 5 and a slidable footrest provided at an intermediate position of the frame 1. And a foot steering mechanism 9 that rotates left and right. A brake mechanism 8 that brakes the rear wheel 3 by pushing down the brake lever 8a is provided at the left and right positions of the chair 5. [Selection] Figure 1

Description

  [Technical Field] The present invention relates to a bicycle for a handicapped person that can be driven by a handicapped person with a handicapped hand.

  Patent Document 1 discloses a bicycle for a handicapped person with both legs disabled. This technology is characterized in that when the steering wheel is swung back and forth, a rotational motion is generated by the crank and the driving force is transmitted to the front wheels, and driving and steering can be performed only by operating the steering wheel.

  By the way, with the above-described technique, it is difficult for a disabled person who has difficulty in one limb to simultaneously drive and steer with one hand. In many cases of stroke, one of the limbs is inconvenient, and there is a need for a bicycle that can be operated by such a disabled person, and the present invention has been made in view of such circumstances.

JP 2003-291880 A

  The problem to be solved by the present invention is to solve these conventional problems and to provide a disabled bicycle that can be driven by a disabled person who has difficulty with one of the limbs.

The configuration of the present invention that solves this problem is as follows.
1) A bicycle for a disabled person having three or more wheels, and a disabled person sitting on a chair and manipulating it manually, and driving a rear wheel with a hand-turning lever provided at a side position of the chair; Bicycle for persons with disabilities characterized by comprising a foot steering mechanism that rotates a handle to the left and right by a wire operation with a footrest that can slide back and forth provided at an intermediate position of the frame 2) Rear of the intermediate position of the frame The bicycle for a disabled person described in 1) above, provided with a pedal for driving the wheel with a foot 3) The brake mechanism described in 1) or 2) above, wherein a brake mechanism for braking the rear wheel by a push-down operation is provided at a side position of the chair. Disabled bicycle 4) The disabled bicycle according to any one of 1) to 3), wherein the footrest includes a locking portion that locks the toe or the heel.

  According to the configuration described in 1) of the present invention, the healthy hand moves the hand drive lever of the hand drive mechanism manually to move forward, and the foot of the foot steering mechanism is moved forward or backward with the healthy foot. Slide and move the handle by wire operation, and turn left and right. Therefore, even if one of the limbs is inconvenient, you can drive yourself without difficulty.

  According to the configuration described in 2) of the present invention, when both feet are healthy and one hand is inconvenient, driving can be performed by stroking the pedal with both feet and operating the steering wheel and brake with the healthy hand. According to the configuration described in 3) of the present invention, the weight of the upper body can be applied, and braking can be reliably performed even if the hand force is weak. According to the configuration described in the above item 4) of the present invention, the foot held by the locking portion is less likely to slip on the footrest during sliding, and it becomes easier to apply force and the operability is improved.

It is a side view of a bicycle for a disabled person of an example. It is a longitudinal cross-sectional view of the footrest of an Example. It is a side view of the foot steering mechanism of an Example. It is a top view of the foot steering mechanism of an Example.

  Hereinafter, the form for implementing this invention is concretely demonstrated based on an Example and drawing.

  1 is a side view of a bicycle for a disabled person according to an embodiment, FIG. 2 is a longitudinal sectional view of a footrest according to the embodiment, FIG. 3 is a side view of the foot steering mechanism according to the embodiment, and FIG. It is a top view.

  In the figure, 1 is a frame, 1a is a fork, 1b is a guide hole, 2 is a front wheel, 3 is a rear wheel, 4 is a handle, 5 is a chair, 6 is a pedal, 6a and 6b are gears, 6c is a chain, and 7 is a hand. Drive mechanism, 7a is a hand lever, 7b is a gear, 7c is a reducer, 7d is a chain, 8 is a brake mechanism, 8a is a brake lever, 8b is a rim brake, 8c is a brake wire, 9 is a foot steering mechanism, and 9a is a base A base, 9b is a guide, 9c is a footrest, 9d is a bearing, 9e is a left turn wire, 9f is a right turn wire, 9g is a wire guide, 9h is an arm, 9i is a locking portion, and h is a foot.

  As shown in FIG. 1, the disabled bicycle according to the present embodiment has a handle 4 pivotally supported at the front end of the frame 1, a fork 1 a is attached to the lower end of the handle 4, and the front wheel 2 is pivotally supported. A rear wheel 3 is pivotally supported on the left and right of the rear end, a chair 5 is attached to the top of the frame 1, and a pedal 6 is pivotally supported at an intermediate position of the frame 1. A large-diameter gear 6a is attached to the shaft portion of the pedal 6, a small-diameter gear 6b is attached to the shaft portion of the rear wheel 3, and a chain 6c is suspended between the gears 6a and 6b. The intermediate position of the frame 1 is formed in a plate shape having an area on which both feet of the user can be placed.

  Instead of the three-wheeled vehicle, a four-wheeled vehicle having two wheels at the front and rear, a modified four-wheeled vehicle having one front wheel and three rear wheels, or a two-wheeled vehicle having auxiliary wheels attached to the left and right of the rear wheel may be used. Good. Further, the handle 4 may be returned to the center position by using a spring or the like for non-steering for safety.

  The manual drive mechanism 7 pivotally supports the gear 7b at the left front position of the chair 5, attaches the output side of the speed reducer 7c to the rear wheel 3, and places a chain 7d between the input shaft of the speed reducer 7c and the gear 7b. It is hung and a hand-turning lever 7a is projected from the eccentric position of the gear 7b. With this configuration, when the hand lever 7a is rotated forward, the reduced driving force is transmitted to the left and right rear wheels 3 to rotate. The hand drive mechanism 7 may be mounted symmetrically on the right side so that it can be used on either side depending on the handedness of the handicapped person.

  The brake mechanism 8 has a brake lever 8a attached to the left and right front end positions of the chair 5 so as to be movable up and down, and a brake wire 8c is stretched between the brake lever 8a and a rim brake 8b provided on the left and right rear wheels 3. . With this configuration, when the brake lever 8a is pushed down, the brake wire 8c is pulled, and the rim brake 8b presses against the rims of the left and right rear wheels 3 for braking. A band brake may be used instead of the rim brake 8b.

  As shown in FIGS. 2 to 4, the foot steering mechanism 9 has a base 9a provided with guides 9b on the left and right inner sides at an intermediate position of the frame 1, and both ends of the foot 9c are fitted to the guides 9b of the base 9a. Combined, it can slide in the front-rear direction. A left turn wire 9e and a right turn wire 9f are connected to the front and rear ends of the footrest 9c, the direction of the left turn wire 9e and the right turn wire 9f is changed by the wire guide 9g, and the arm 9h provided at the upper end of the fork 1a It stretches to the left and right ends.

  Middle portions of the left turn wire 9e and the right turn wire 9f are stretched below the frame 1 through the guide holes 1b. The left turn wire 9e and the right turn wire 9f are covered with a tube made of vinyl chloride resin to make it easy to slip. The footrest surface of the footrest 9c forms a gradient in which the rear side is lowered, and it is easy to apply force to facilitate sliding. The bearing 9d is for smooth sliding of the footrest 9c. A rubber locking portion 9i for locking the toe and the heel is formed at the front and back positions of the footrest surface of the footrest 9c.

  With this configuration, when the footrest 9c is slid forward, the left turn wire 9e is pulled, the fork 1a moves counterclockwise, and the handle 4 tilts to the left. When the footrest 9c is slid rearward, the right turn wire 9f is pulled relatively, the fork 1a moves clockwise, and the handle 4 tilts to the right. The foot h placed on the footrest 9c is held by the locking portion 9i so as not to slip when sliding. The bearing 9d may be omitted by using a material with low frictional resistance for the base 9a and the footrest 9c. Moreover, you may enable it to adjust the attachment space | interval of the front and back according to the magnitude | size of the leg | foot h.

  In this embodiment, a handicapped person with a disability on one limb sits on the chair 5, puts the healthy person's foot h on the footrest 9c, holds the toes and the heel with the locking portion 9i, Rotate with your hand and hold lever 7a. When the hand turning lever 7a is rotated in the forward direction, it is decelerated by the speed reducer 7c and can move forward with a small force. When changing the direction, if the foot 9c is slid forward or backward with the foot h, the handle 4 can move to the left or right to change the direction. When stopping, the hand is released from the hand turning lever 7a and the brake lever 8a is pushed down, and the rear wheel 3 is braked to decelerate or stop.

  Thus, according to this embodiment, even if one of the limbs is inconvenient, it can be driven without requiring an assistant, so that it is possible to go out and rehabilitate. Further, since the brake lever 8a is a push-down operation, the weight of the upper body can be applied, and braking can be reliably performed even if the hand force is weak. When both feet are inconvenient and both hands are healthy, the user can drive the vehicle without operating with the feet by operating the handle 4 with one hand and turning the lever 7a and the brake lever 8a with the other hand. When both feet are healthy and one hand is inconvenient, the pedal 6 is stroked with both feet to move forward, and the handle 4 and the brake lever 8a are operated with the healthy hand.

  The technology of the present invention is used for a disabled person or an elderly person whose hand or leg is inconvenient due to a stroke or the like to go out by himself or for rehabilitation.

1 Frame 1a Fork 1b Guide hole 2 Front wheel 3 Rear wheel 4 Handle 5 Chair 6 Pedal 6a, 6b Gear 6c Chain 7 Hand drive mechanism 7a Hand turning lever 7b Gear 7c Reducer 7d Chain 8 Brake mechanism 8a Brake lever 8b Brake wire 8c 9 foot steering mechanism 9a base 9b guide 9c foot 9d bearing 9e wire for left turn 9f wire for right turn 9g wire guide 9h arm 9i locking part h foot

Claims (4)

  A bicycle for handicapped persons having three or more wheels, and a handicapped person who sits on a chair and operates manually, a hand drive mechanism that drives a rear wheel with a hand-operated lever provided at a side position of the chair, and a frame A bicycle for handicapped persons, comprising: a foot steering mechanism that rotates a handle left and right by a wire operation with a footrest that is slidable back and forth provided at an intermediate position.   The disabled bicycle according to claim 1, wherein a pedal for driving the rear wheel with a foot is provided at an intermediate position of the frame.   The disabled bicycle according to claim 1 or 2, wherein a brake mechanism for braking the rear wheel by a push-down operation is provided at a side position of the chair.   The disabled bicycle according to any one of claims 1 to 3, wherein the footrest includes a locking portion that locks the toe or the heel.

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