JP3209675U - 3 wheel bicycle handbike rowing by hand - Google Patents

Abstract

[PROBLEMS] To solve the inconvenience of a wheelchair, which is a means of transport for people with disabilities in the lower limbs, and at the same time to expand the range of action for people with lower limb disabilities and patients with limb paralysis with weak hand grip, to help increase the willingness to participate in society. We provide a three-wheeled bicycle handbike that can be transferred easily and can be moved over long distances. To make it easier to transfer from a wheelchair, the seat height is set at a position 400 mm higher than the ground level so that it is the same height as the chair of the wheelchair. It can be stopped without gripping, and if you turn the crank forward, it will move forward, and if you turn it backward, it will apply a `` coaster brake '' that will apply the brake, and a brake lever by attaching a `` comfort grip '' to the handle fixed to the crank A hand bike that can be operated without gripping the grip. [Selection] Figure 4

Description

The present invention relates to a three-wheeled bicycle hand bike equipped with a coaster brake and a comfort grip for a person with a disability in the lower limbs and can be operated by hand without using a leg.

Currently, "wheelchairs" are the main means of transportation for people with disabilities in the lower limbs, but wheelchairs cannot move because there are only a few centimeter steps, or they cannot move by themselves on gravel roads. In Japan, where there are many hills, it is very difficult to travel alone on a wheelchair.

Handbikes themselves have been developed mainly in Europe since the 1980s, but conventional handbikes are an “adapter type” that attaches only the front wheels to a wheelchair, and a “finished vehicle type” that combines a frame and three-wheel tires. There were only two types.
The adapter type has only a gear, so it can't be climbed by one person like a wheelchair, and the completed vehicle type is specialized for racing, so only athletes who can participate in the Paralympics can ride. For wheelchair users, especially those who were injured due to injury or illness, they could not ride the existing handbike.
Moreover, since all handbikes are brake lever systems, when applying the brakes, it is necessary to hold the brakes.

The brake lever is installed so that the seat height is about 400 mm higher than the ground so that it can be easily transferred from the wheelchair. By adopting a “coaster brake” that can be stopped without gripping, and by attaching a “comfort grip” to the handle, a hand bike that allows the handle operation without gripping the brake lever or grip can be realized. It solves the problem.
The coaster brake is a system that moves forward when the crank (rotating part of the pedal) is turned forward, and brakes when turned backward. Therefore, it is unnecessary to hold the brake lever when stopping.

The hand bike according to the present invention is a complex technology such as the main frame 12, the upper fork 5 and the lower fork 10 because of our high technology to handle pipe welding of semiconductor manufacturing equipment and food processing machines that require advanced welding technology. Parts that require strength can be manufactured in-house.
In addition, taking advantage of the “manufacturing network” with various processors, we can manufacture hand bikes with excellent practicality.
The biggest advantage is that it is manufactured in-house and can be customized according to the degree and physique of each person.

It is the figure which looked at the handbike which concerns on this invention from the front. It is the figure which looked at the handbike which concerns on this invention from the rear surface. It is the figure which showed the driving posture of the handbike which concerns on this invention. It is the figure which showed the operating method of the handbike carrying the coaster brake which concerns on this invention. It is the figure which specified description of the comfort grip concerning this invention.

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

As shown in FIG. 1, an upper fork 5, a lower fork 10, and a front tire 9 are fixed in front of the main frame 12. An upper fork 5 and a lower fork 10 are fixed by a stem 4 in front of the main frame 12.
The coaster hub 7 and the front rim 6 are fixed by spokes 8 and are configured as front tires 9.
The seat 14 on which the driver sits is bonded to a cushion 13 with an integrated seating surface and backrest, and is also attached to the main frame, and the legs are placed on the pegs 11.
The crank 1 is fixed to the upper fork 5 with a bottom bracket 22.
When operating, the driver holds the grip 21 attached to the handle 2 to operate.
The feature of this hand bike is that the crank 1 and the coaster hub 7 are connected by a chain 3, and the crank 1 is moved forward to advance and the brake is applied by turning backward.

As shown in FIG. 2, the rear hub 19 and the rear rim 17 are fixed to the rear of the main frame 12 with the spokes 15 and the rear tires 20 are attached to form the rear tires 16 and 20. Since the disc brake pedestal 18 is attached to the right rear tire, it is possible to attach a rear brake.

As shown in FIG. 3, the driver sits on the seat, puts his hand on the grip, and puts his leg on the peg.

As shown in FIG. 4, when the crank is turned forward, it moves forward, and when it is turned backward, the brake is applied.

As shown in FIG. 5, put a hand on the bar portion of the grip end.

By using hand bikes completed through the above process in rehabilitation and daily life for people with disabilities in the lower limbs, we believe that they can expand their range of action and contribute to independence support for people with disabilities in the lower limbs.

1 Crank 2 Handle 3 Chain 4 Stem 5 Upper Fork 6 Front Rim 7 Coaster Hub 8 Spoke 9 Front Tire 10 Lower Fork 11 Peg 12 Main Frame 13 Cushion 14 Seat 15 Spoke 16 Rear Tire 17 Rear Rim 18 Rear Hub 19 Rear Tire 20 Comfort Grip 21 Bottom bracket

Claims (1)

Three-wheeled bicycle hand bike rowing by hand with coaster brake and handle with comfort grip