| 摘要 |
A cycle propelling mechanism includes a rail disposed on a cycle frame, two cranks rotatably coupled to the cycle frame with a main drive shaft, two levers each include one end pivotally coupled to the crank and the other end slidably coupled to the rail for allowing the levers to be moved cyclically relative to the cycle frame, and two foot pedals pivotally attached to the levers for being stepped and operated by user's feet and for allowing the cranks and the lever to be rotated relative to the cycle frame in an elliptical moving stroke and for allowing the foot pedals to be stepped and moved for a longer stepping or moving stroke by the user, and for effectively exercising the more or bigger muscle groups of the user, and for applying bigger power to the cycle propelling mechanism.
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