| 摘要 |
A pedal system includes a support element, a connecting shank, a transmission element and a returning element. The support element has a pedal and a rotatable axle. The axle inserts through the connecting shank in a rotational operative relationship. The returning element includes a connecting body, a rod unit, a positioning element and a resilient member. The connecting body is disposed on the axle. The resilient member connects between the connecting body and a connecting end of the rod unit. The connecting end of the rod unit is movable with respect to the support element so as to adjust an angle included between an orientation of the resilient member and that of an upright frame of the support element. The positioning element selectively fixes a relative position between the rod unit and the support element, so as to further fix the angle.
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