| 摘要 |
The herein invented cushion bears two arms 1, one elastic overlapping pressure pipe 2, one jaw 3, covers protecting the human members 4, one pin 5 holding the jaw 3, one pin guide 6, one metal base 7, two air supply fittings 8, assembling screws andnuts 9 and blades sealing the elastic tube 10 with screws 11. In its final shape, the elastic pipe 2 is overlapped into the cavity formed by the arms 1, the jaw 3 is placed into the cavity formed by the overlapping elastic pipe 2, and the pin 5 getsthrough the guide 6 and the jaw 3 for fixing this last. Compressed air is supplied by the foregoing air suppliers 8 to inflate the elastic pipe 2 around the periphery of the jaw 3, which jaw thanks to the communicating vessels formed by said pipe isembraced in a few seconds by this last; finally, the foregoing pipe will be completely self-adjusted to the form of the shoe-tree bearing the uppers of the shoe being under shaping. |
