Shoe with spring-like sole member

A - Human Necessities – 43 – B

Patent

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36/57, 36/6

A43B 13/12 (2006.01) A43B 5/06 (2006.01) A43B 13/18 (2006.01)

Patent

CA 1330485

A B S T R A C T O F T H E D I S C L O S U R E A shoe, which is adapted for a particular type of activity, such as running, is provided with a flexible resilient member interposed between an outer sole and an inner sole for storing and releasing energy during each running step. The flexible resilient member is arranged to flex in the region of the ball of the foot of the wearer. whereby as the foot is flexed, energy is stored in the flexible resilient member, and as the foot leaves the ground, the flexible resilient member restores itself to its resting condition while releasing the stored energy in a manner which assists the running motion of the wearer,. The flexible resilient member may be formed of a fiber reinforced polymeric material, such as carbon fiber reinforced epoxy which has a directional flexure characteristic. A plurality of such direc- tional layers of the material may be bonded to one another, so as to achieve a desired overall flexure characteristic which may have different longitudinal and transverse components. The flexure characteristic may be adapted for various wearer weights and running styles, as well as for characteristics of running surfaces.

554074

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