| 摘要 |
The cross members (2) for a folding wheelchair, have an upper (2a) and lower (2b) member sections, where one section (2b) has a telescopic movement within the other section (2a). Both sections (2a,2b) have a row of holes (3), which correspond with each other.The intersection linkage (1) is formed by a bolt, and the like, through the drilling (3a) of one row of holes and the aligned drilling of the other row, and through the connected members. The intersection link (1) is always at the center of the crossed members. |
