| 摘要 |
An anti-toppling device for treadmill's frame comprising a front supporting lever, a handgrip frame, a frame, a running belt and a rear supporting lever, characterized in that the bottom end of one side of said frame of said treadmill is fitted with a pneumatic cylinder on which cylinder on which an auxiliary supporting element and a turning spring are mounted, and that a mounting member on one side of said supporting element and a locating hole of said turning spring together with a pivoting member of an application rod of said pneumatic cylinder are pivoted on the same locating shaft of said frame so that, when said frame is raised in an upright folded state, said supporting element will be shifted upwards with the position of said locating shaft while said application rod of said pneumatic cylinder is in a synchronically protruding state until said engaging member at the bottom end of the middle section of said supporting element is supported at the side edge of a main body of said pneumatic cylinder so that the desired anti-toppling effect can be achieved.
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