| 摘要 |
: LIGHTWEIGHT FOLDABLE WHEELCHAIR A foldable wheelchair having opposed main side frames each comprising front and rear members supported on respective front and rear wheels and connected by upper and lower cross members, and a back member mounted for folding movement relative to the rear member wherein the side frames are connected by first and second foldable links for maintaining the side frames spaced apart in the erected condition of the wheelchair in which the back members are aligned with the rear members and support a flexible back panel, and the wheelchair is collapsible to a compact folded condition by folding the links to move the side frames adjacent to each other and by folding the back members to extend downwardly adjacent to the rear members and the associated rear wheels. |
