초록

A collapsible wheelchair having a frame including a first side frame, a second side frame, coupling means holding the two side frames at least on the operative situation in the same positions at a mutual distance, wheel arranged on the frame, a seat and a back.

대표청구항 ▼

[ We claim:] [1.] A collapsible wheelchair comprising:a frame comprising:a first side frame;a second side frame substantially the same as the first side frame;coupling means holding the two said side frames at a mutual distance in at least an operative situation;wheels arranged on the frame;a seat;a

[ We claim:] [1.] A collapsible wheelchair comprising:a frame comprising:a first side frame;a second side frame substantially the same as the first side frame;coupling means holding the two said side frames at a mutual distance in at least an operative situation;wheels arranged on the frame;a seat;a seat back; andwherein each side frame comprises:a first middle sub-frame which in the operative situation extends substantially horizontally, at substantially a level of the seat;a front sub-frame which in the operative situation extends from a front side of the first middle sub-frame inclining downwardly in a forward direction and bears a front wheel;a rear sub-frame which in the operative situation extends from a rear side of the first middle sub-frame and bears a rear wheel, wherein the front and rear sub-frames are pivotable relative to the first middle sub-frame by respective hinge joints and the coupling means are configured as spacers holding corresponding sub-frames at a fixed distance;a second middle sub-frame arranged between the front and rear sub-frames for pivoting relative to both these sub-frames by a hinge joint such that each side frame, and thus the whole frame, is foldable around pivot axes until the front, first middle and rear sub-frames lie substantially on top of each other; andstop means located between the middle sub-frame and at least one of the other sub-frames.