| 摘要 |
<p>A wheelchair is foldable to open and closed positions. The wheelchair includes first and second frame members that are movable with respect to each other during folding of the wheelchair. A biasing member is connected to at least one of the frame members. Movement of the frame members with respect to each other during folding of the wheelchair creates a biasing force in the biasing member urging the wheelchair to an open position.</p> |
