PCT No. PCT/JP96/01703 Sec. 371 Date May 15, 1997 Sec. 102(e) Date May 15, 1997 PCT Filed Jun. 20, 1996 PCT Pub. No. WO97/00658 PCT Pub. Date Sep. 1, 1997According to the present invention, in a manual electric wheelchair equipped with a supplemental drive force system consisting of a man power detect means constituted by a potentiometer (27), etc., a signal transmit means constituted by a rotation transformer (39), a control means constituted by a controller (35), a drive force transmit means constituted by a drive motor and gears (G1-G4), etc., a set consisting of the man power detect means, the signal transmit means, the control means, the drive motor, and the drive force transmit means is arranged about an axle (11) of the hub (2a) and of the stationary plate (31) of each drive wheel (2), the stationary plate (31) being fixed to a frame (3) at a location in the vicinity of the hub (2a) in a manner such that the stationary plate (31) is prohibited from rotating, and each drive wheel (2) is capable of being attached to and detached from the chair body together with the respective stationary plate (31). Therefore, according to the present invention, a compact and rational arrangement of the supplemental drive force system is realized, and a mass producibility is improved through the consequent reduction in number and lengths of the wires as well as simplification of manufacture and assemble work of the manual electric wheelchair.
Manual electric wheelchair