Power Generating and Gait Assisting Footwear Article
AssigneeCity University of Hong Kong
InventorsZhengbao YANG, Qiqi PAN
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Abstract
The present invention provides a device for improving energy economy and wearing comfort of a power generating, gait assisting footwear article while maintaining normal gait pattern during human locomotion. The device includes a motion conversion mechanism to convert linear reciprocating moment exerted on the device during heel strike/up into a series of rotations; a rotation acceleration module to increase the speed of rotations before being transformed into electric current by a generator. The device also includes a power management module and energy storage element(s) for energy storage and power supply to the footwear article or external electronics.
Claims17
A device for improving energy harvesting, gait assisting and shock absorbing efficiencies while maintaining normal gait pattern of a wearer of an article of footwear during locomotion, the device comprising:
- a motion conversion module comprising an impact force absorbing and resilient member;
- and one or more guided members being attached to the impact force absorbing resilient member;
- a rotation acceleration module comprising a plurality of rotatable members and communicating with the motion conversion module;
- an electrical energy generator communicating with the rotation acceleration module;
- and
- a frame accommodating the motion conversion module, rotation acceleration module and electrical energy generator,
- the motion conversion module being vertically extended from a horizontal section of the frame forming a sleeve, wherein the sleeve is internally threaded,
- at least one of the guided members being configured to move along the internally threaded sleeve when the impact force absorbing resilient member moves vertically along the sleeve due to a heel strike or up motion of the wearer's foot,
- the one or more guided members, upon moving along the internally threaded sleeve, driving at least one of a plurality of rotatable members of the rotation acceleration module to rotate, thereby subsequently driving the remaining rotatable members of the rotation acceleration module;
- the electrical energy generator transforming rotational energy of the rotatable members of the rotation acceleration module into electric energy to be stored in an energy storage element and/or supplied to other parts of the article of the footwear and external electronics.
Dependencies are inferred from the claim text.