| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic elastic position-restoration structure of an elastic cable of an abdominal muscle exercise machine having a simple structure and capable of reducing a packing material area.SOLUTION: The automatic elastic position-restoration structure of the elastic cable of the abdominal muscle exercise machine comprises: elastic cables 3 clampedly fixed to apexes in both sides inside a presser application body 2; a slide bar 22, the terminal end of which is a belly pad 221, installed at an inner stage of a tank part 21 in an intermediate stage of the pressure application body 2; and a hook plate 222 installed for vertically hooking a cable body of the elastic cable 3 from a forefront end of the inner stage of the slide bar 22. The elastic cable 3 is deformed and forms restoration tension. The front end of the hook plate 222 in the front stage of the slide bar 22 is a forward-looking open hook hole 224 and is located at a substantially same height as the height when the elastic cable 3 is horizontally supported. The hook hole 224 is located on a bar body of the slide bar 22 and has an arc fin part 223 getting higher from a low rear stage. |
