FOLDING MOVABLE CHAIR Russian patent published in 1996 - IPC

FIELD: vehicle for invalids. SUBSTANCE: chair has two side frames made, accordingly, in form of lower portion with wheels and upper portion with hinged seat, which are connected to provide vertical displacement relative to each other by means of telescopic joint. Guides of telescopic joint are connected in plane of side frames by tubes to prevent turning of guides. Upper and lower portions of frames are rigidly connected with folding mechanism rods which are hinge-connected to each other in middle. Lower portions have vertical tubes passing in parallel with telescopic joint guides and bent in upper part to form handles. Folding mechanism has special device to reduce friction in guides. This device is made in form of support rollers secured in upper portions of side frames for engagement with vertical tubes from inside. Vertical tubes are made as supporting ones. EFFECT: enlarged operating capabilities and convenience of operation. 4 dwg