초록 ▼

An improved construction of sole unit for running shoes features a longitudinally asymmetrical recess across the width of the heel area of the midsole and interchangeable inserts, differentiated by their durometer hardness, inserted to fill the recess, such that the shock absorption characteristics

An improved construction of sole unit for running shoes features a longitudinally asymmetrical recess across the width of the heel area of the midsole and interchangeable inserts, differentiated by their durometer hardness, inserted to fill the recess, such that the shock absorption characteristics of the midsole can be suited to the user and the running surface and any tendency to over-pronation can be corrected, a larger anti-pronation insert being provided for insertion on the inner side of the heel and a smaller anti-supination insert being provided for insertion on the outer side of the heel and the two inserts being arranged to interlock with each other.

대표청구항 ▼

A running shoe having a sole structure which includes a heel portion formed of a shock-absorbing material and having a recess extending with an elongate slot-like cross-section fully across the width of said heel portion between a first, longer, elongate, slot-like opening on the inner side of the h

A running shoe having a sole structure which includes a heel portion formed of a shock-absorbing material and having a recess extending with an elongate slot-like cross-section fully across the width of said heel portion between a first, longer, elongate, slot-like opening on the inner side of the heel and a second, shorter, elongate, slot-like opening on the outer side of the heel, the directions of elongation of said openings and of the slot-like cross-section of the recess being generally parallel to the plane of the shoe sole and the recess being shaped in the plane generally including the directions of elongation of said first and second openings so as to be asymmetrical with respect to the general longitudinal heel-to-toe axis of the shoe, with a major portion of the recess being located at the inner side of the heel and a minor portion of the recess being located at the outer side of the heel, and said recess removably and interchangeably receiving therein an insert which at least substantially completely fills the recess, said insert being of selectable hardness characteristics for adapting the shoe to the individual requirements of the user and particularly for selectively providing anti-pronation and anti-supination properties.