DRIVING DEVICE FOR MOTOR-DRIVEN WHEELCHAIR

摘要

PROBLEM TO BE SOLVED: To easily remove a wheel by arranging a wheel shaft part, which is integrally arranged with the wheel and rotates together with the wheel, coaxially with an output part of a driving part by being pivoted so that a passive engaging part projecting to the shaft directional inside to the wheel can be locked on and released from the output part. SOLUTION: In a driving device 53 of a motor-driven wheelchair, a bracket 1 enclosing a motor 4 or the like is fixed to a pipe 3 of a car body frame by a belt 2. A rotor 4b of the motor 4 is rotatably supported by the bracket 1 through a ball bearing 5, and a sun gear 6 is installed on a rotary shaft of this rotor 4b, and plural planetary gears 7 are meshed so as to be respectively inscribed in this sun gear 6 and an annular ring gear 8, and rotating speed of the motor 4 is reduced. A wheel shaft part 12 integrally arranged with a wheel 11 is rotatably held by the bracket 1 through a ball bearing 13 after a passive engaging part 12x projecting to the shaft direction inside of the wheel 11 is entered up to the imost part of the bracket 1.