Impact damping system applicable to sport shoes
First Claim
1. An impact damping system for sport shoes of the type having an insole and a sole,a cavity formed in said insole and extending down to the upper face of the sole within the shoe,a hollow housing of resilient material shaped to fit in said cavity and to be removable therefrom, the bottom end of the housing extending toward said upper face of the sole,said housing having an integral cover at its upper end, the upper face of the cover mating with the upper face of the insole, the bottom of the housing having an inward peripheral extension leaving an opening, andat least one damping disc of resilient material in said housing extending between the inner face of said cover and the housing inward extension and toward the upper face of the sole, said at least one disc being insertable into said housing through the opening in the housing bottom by deforming the housing bottom.
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Accused Products
Abstract
An impact damping system for application to sport shoes having a hollow housing of flexible elastomeric material which is softer and more resilient than the insole material of the sport shoe which it is to be removably placed in a cavity in the heel area of the shoe. The inner and outer surfaces of the housing side which are smooth and homogeneous, and there is a top cover with an overhang lip which rests on the insole. One or more replaceable damping discs are inserted into the housing and are held therein by the cover which has downwardly extending pins to engage a groove in the disc and a peripheral flange at the lower end of the housing.
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Citations
20 Claims
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1. An impact damping system for sport shoes of the type having an insole and a sole,
a cavity formed in said insole and extending down to the upper face of the sole within the shoe, a hollow housing of resilient material shaped to fit in said cavity and to be removable therefrom, the bottom end of the housing extending toward said upper face of the sole, said housing having an integral cover at its upper end, the upper face of the cover mating with the upper face of the insole, the bottom of the housing having an inward peripheral extension leaving an opening, and at least one damping disc of resilient material in said housing extending between the inner face of said cover and the housing inward extension and toward the upper face of the sole, said at least one disc being insertable into said housing through the opening in the housing bottom by deforming the housing bottom.
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20. An impact damping system for sport shoes of the type having an insole and a sole,
a cavity formed in said insole and extending down to the upper face of the sole within the shoe, a hollow housing of resilient material shaped to fit in said cavity and to be removable therefrom, the bottom end of the housing extending toward said upper face of the sole, a cover for the upper end of the housing and being integral therewith, the upper face of the cover mating with the upper surface of the insole, the bottom of the housing having an inward peripheral extension leaving an opening, and at least one damping disc of resilient material in said housing extending between the inner face of said cover and the housing inward extension extending toward upper face of the sole, said at least one disc being insertable into said housing through the opening in the housing bottom by deforming the housing bottom, the cover inner surface having a plurality of downwardly projecting cylindric pins concentrically distributed around a central hole in the cover, the upper face of said at least one disc having an annular groove on the upper surface and the pins fit into such groove and engage the upper face of the disc.
Specification