| 摘要 |
PCT No. PCT/US93/11245 Sec. 371 Date Oct. 7, 1996 Sec. 102(e) Date Oct. 7, 1996 PCT Filed Nov. 19, 1993 PCT Pub. No. WO95/13954 PCT Pub. Date May 26, 1995A wheelchair driver having a simple, efficient structure is mountable to a horizontal frame extension of a wheelchair between a wheel and the wheelchair's frame. The driver is mounted directly to a spindle sleeve fastened to the horizontal frame extension which provides a race for the driver to run upon. The spindle sleeve also isolates the driver from the wheel preventing any friction between the wheel and the driver. The driver has a lever extending upward from the spindle sleeve above the tire of the wheel. A handle is provided on the uppermost end for a user. The lever has a pawl extending over the tire of the wheel. The pawl has teeth on a lower surface and contacts against the tire. When the lever is rotated around the spindle sleeve, the pawl teeth grab the tire, causing the wheelchair to move. When the lever is stopped or rotated oppositely, the pawl teeth release the tire and allow the wheelchair's momentum to move the wheelchair until another forward rotation of the lever provides additional force. Brake pads on the lever, adjacent to rims of the wheels, are forcible against the rims, providing the user with a wheelchair brake. The wheelchair driver provides a user with a safe and efficient method of wheelchair motivation which does not require gripping and releasing of any moving part of the wheelchair.
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