Patent ID: 8534404
Filing Date: 2013-09-17
Classification: B60K,B62M

Abstract:
1. An auxiliary power device of a bicycle, wherein the bicycle has a first frame section and a second frame section moving relative to the first section in cycling, the auxiliary power device comprising: a driving member provided to the first frame section of the bicycle; a base member provided to the second frame section of the bicycle; an input member provided to the base member and engaged with the driving member so that the driving member drives the input member when the first frame section moves relative to the second frame section, the input member includes an input gear and a post comprising a slot and a first post gear and a second post gear on the end of the post opposite the slot, the post passes through the bore of the base member so that the input gear and the slot are at opposite sides of the base member, the gear provides a through hole and a plurality of paws are provided around the inner wall of the through hole, these paws are engaged with the second post gear, by this way the gear can push the post to rotate in one direction; a ratchet member limiting the input member only turning in a predetermined direction; a power storage member connected to the input member so that the power storage member is driven by the input member to store a power therein; and an output member connected to the power storage member so that the power storage member releases that power to drive the output member and the output member transfers the power to the bicycle for moving the bicycle.