| 摘要 |
A folding wheelchair which incorporates two side frames, a first cross-brace connecting the two side frames, which first brace is foldable, and two staffs rotatably mounted on respective each side frame. The wheelchair also possesses a second cross-brace connecting the two staffs, with the second cross-brace being constituted of two parts swivable about a common axis whereby the wheelchair is of lightweight and rigid construction. |
