Energy return system in an athletic shoe
OwnerKiartchai Santiyanont, Narong Chokwatana +1inventors
InventorsKiartchai Santiyanont, Narong Chokwatana, Krisada Suchiva
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Abstract
An energy return system to be positioned in the midsole region of an athletic shoe comprises a top member made of resilient material and including a base having a plurality of integrally formed, closely spaced, downwardly depending and downwardly tapering elements, a bottom member made of resilient material and including a base having a plurality of corresponding integrally formed, closely spaced, upwardly extending and upwardly tapering elements, and sandwiched between the tips of the two set of elements a thin stiff intermediate sheet, the tips of the two pluralities of elements being aligned face to face with the stiff sheet positioned between them.
Claims16
An athletic shoe in which the midsole region includes at least one energy return system comprising:
- a top member made of resilient material and including a base having a plurality of integrally formed, downwardly depending first elements, the plurality of first elements each having a first tip;
- a bottom member made of resilient material and including a base having a plurality of integrally formed, upwardly extending second elements, the plurality of second elements each having a second tip;
- and
- a stiff intermediate sheet positioned between, and being movable relative to, the first and second tips, said stiff sheet being sufficiently stiff and having a coefficient of friction such that the tips are prevented from sliding one over the other and thereby the tips remain in alignment upon compression of the first and second elements toward each other.
Dependencies are inferred from the claim text.