| 摘要 |
A foldable wheelchair includes a pair of side frames each of which have generally horizontal upper and lower members which are connected by generally vertical front and back legs. A pair of cross arms are located between the side frames and each arm has a base portion connected to a lower side frame member. A top portion of each cross arm is connected to an upper side frame member through a positioning link. The side frames are laterally and vertically positioned with respect to each other by a pair of positioning braces each located on a base portion of a different cross brace. Each brace contacts the top portion of the remaining cross brace and thus positions the side frame. The wheelchair has a removable rigid seat to permit access to the cross braces so the wheelchair can be folded. |
