INVALID CHAIR Russian patent published in 1997 - IPC

FIELD: medicine; vehicles for invalids. SUBSTANCE: invalid chair has folding framework with backrest 2, seat 5, footrests 3, arm rests 13, brakes, folding mechanism tie-rods 4. Framework consists of two semiframes 1 and is provided with lifting device by means of two driving detachable wheels 8 whose size exceeds that of four driven wheels 6, 7, two of which are swivel wheels. backrest 2 and footrests 3 are detachable and are provided with similar attachment units in form of shaped clamps with guide secured on semi-frames 1 and spring locks 12 with tracers arranged on backrest 2 and footrests. Locks are made integral with handles. Tie-rods 4 of folding mechanism are made curvilinear. EFFECT: enlarged operating capabilities. 5 cl, 13 dwg