Energy storage and return spring

Details Energy storage and return spring Energy storage and return spring

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 3/10 (2006.01) A43B 13/18 (2006.01) A43B 13/20 (2006.01) A43B 21/26 (2006.01) F16F 1/373 (2006.01)

Patent

CA 2633067

A spring shoe, and also in particular a spring, as well as a method of returning energy to a user, are provided. In one embodiment, a method and apparatus stores foot strike energy and releases it after a slight delay, when it will exert a force on the user which includes a forward component. This is accomplished in an embodiment by a spring in the sole which has a decreasing spring force, such that the force required to compress the sole decreases for all or part of the compression displacement as the spring is compressed.

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