초록 ▼

In order to produce a much simpler and in particular lighter-weight wheel-chair than existing models, and to achieve at the same time optimum rigidity and safety, the surface of the seat (3), back support (1) and side-walls (5) are designed as a self-supporting monocoque construction, in self-reinfo

In order to produce a much simpler and in particular lighter-weight wheel-chair than existing models, and to achieve at the same time optimum rigidity and safety, the surface of the seat (3), back support (1) and side-walls (5) are designed as a self-supporting monocoque construction, in self-reinforced and/or foam plastic. The base (25) carried by the wheels (17,37) also consists of self-reinforcing and/or foam plastic. The monocoque construction and base are integrally formed and have a height adjustment feature.

대표청구항 ▼

A wheelchair comprising: a plastic carrying structure having a seat portion, a rearward backrest portion, a forward footrest portion, and two side board portions formed in a unitary shell design; a plastic substructure supporting said unitary carrying structure wherein said carrying structure and sa

A wheelchair comprising: a plastic carrying structure having a seat portion, a rearward backrest portion, a forward footrest portion, and two side board portions formed in a unitary shell design; a plastic substructure supporting said unitary carrying structure wherein said carrying structure and said substructure are made as one piece; solid foamed plastic wheel bodies rotatably connected to and supporting said substructure, each of said wheel bodies having an integrally formed solid foamed plastic rolling surface, wherein at least one pair of said wheel bodies is disposed on opposite sides of said substructure, each of said pair of wheel bodies having an integrally formed solid foamed plastic handrail; and a height adjustment means for lowering and raising said footrest portion of said carrying structure while maintaining a preset distance between said footrest portion and said seat portion.