Patent ID: 8251183
Filing Date: 2012-08-28
Classification: F03G,H02K

Abstract:
1. An electricity generating device by applying vehicle weight, utilizing a driver with restoring force, said driver comprising a pressure receiver and a restoring weight element hinged together onto a mandrel and forming a predetermined angle therebetween, wherein said angle formed between said pressure receiver and said restoring element is designed to have a value according to predetermined angular swinging speed of said driver, and said driver is able to provide a continuous unidirectional rotating torque to drive a generator to output electrical energy when being exerted a vehicle weight, and wherein a transmission gear unit is employed to provide said device with the continuous unidirectional rotating torque, said device further comprises a driving wheel and a follower wheel, the mechanical power output of said driving wheel is transmitted to said follower wheel, said driving wheel is composed of a ratchet wheel, several ratchet pawls and an external wheel, said ratchet wheel is engaged to said mandrel with more than one ratchet pawls distributed around its rim, an elastic element is interposed between each said ratchet pawl and said ratchet wheel serving as a cushion, said external wheel is rotatably sleeved on said mandrel and having several detents formed along the inner circumference thereof, and said detents are to be in mesh with said ratchet pawls.