SELF-PROPELLED INVALID'S WHEEL CHAIR Russian patent published in 2000 - IPC

FIELD: rail-free vehicle for transportation of invalids, may be used for transportation of robots-manipulators over horizontal surface in natural conditions. SUBSTANCE: chair of wheel chair has two driven and two drive wheels. Drive wheels are provided with electric drive having engines connected through commutators. Accumulator battery is connected to secondary power source which is connected to control unit and to sensor. The latter is mechanically joined to control arm equipped with button. Drive wheels are mounted directly on motor-reducers, which are provided with electromagnetic brakes connected to accumulator battery via button on control arm. EFFECT: simplified noiseless construction, prolonged service life, increased safety, and easy maintenance. 4 cl, 1 dwg