초록 ▼

A pair of identical side frames (A) are each made up of a pair of generally L-shaped tubular members which are welded together. A reinforcing tube (30) is slidably received within a forward portion (14) of each side frame to strengthen an interconnection with a front wheel assembly mounting bracket

A pair of identical side frames (A) are each made up of a pair of generally L-shaped tubular members which are welded together. A reinforcing tube (30) is slidably received within a forward portion (14) of each side frame to strengthen an interconnection with a front wheel assembly mounting bracket (32) with mechanical fasteners. A swing away leg rest mounting bracket (50) is also connected with the forward tubular portion and reinforcing tube for selectively supporting a swing away leg rest assembly thereon. A folding mechanism (D) includes a pair of pivotally connected seat support structures (100). The seat support structures include seat side supports (102) which have a longer free end (106) and shorter free end (108), cross mambers 104 and fittings (120). Circumferentially disposed grooves (124) are offset in such a manner that the seat support structures are interchangeable. An arm rest assembly (F) is releasably connected with the side frames with brackets (162, 174) such that the arm support structure can be selectively removed form the brackets or pivoted about one of them.

대표청구항 ▼

A wheelchair comprising: left and right side frames, each side frame including upper and lower generally horizontal legs and generally vertical forward and rearward legs connected with the general horizontal legs; a pair of rear wheels mounted to the side frames; a pair of front wheel assemblies mou

A wheelchair comprising: left and right side frames, each side frame including upper and lower generally horizontal legs and generally vertical forward and rearward legs connected with the general horizontal legs; a pair of rear wheels mounted to the side frames; a pair of front wheel assemblies mounted to the side frames; a seat portion operatively connected with the side frames; a pair of seat side supports which are connected with side portions of the seat; a pair of cross members, each cross member fixedly connected at an upper end to one of the side supports; a pair of fittings, each fitting being fixedly connected with a lower end of one of the cross members and defining a side frame tubing section receiving aperture therein, each of the fittings receiving the generally horizontally disposed lower leg of one of the side frames therein for rotating movement thereon; and, a projection and circumferentially extending guide slot arrangement interconnected with at least one of the fittings and the horizontal leg received therein for maintaining the fitting and the side frame in alignment.