| 摘要 |
PURPOSE: A replaceable crutch is provided to enable a user to replace the packing of the crutch with sanitary packing. CONSTITUTION: A replaceable crutch comprises upper supports(1,1'), a lower support(2), a rotary shaft(3a), a loop(3g), a handle(3c), a screwnut(3d), screw thread(3f), and springs(4,4'). The rotary shaft of a connecting part is fixed by the screwnut between the upper supports. In the side end of the connecting part, a loop is fixed or welded. The end part of the loop is formed in a circular shape. When the handle is hung in the loop, the lower support is rotated at 180 degrees. |
