Abstract A shoe innersole having a laminated construction of an upper leather-like layer, a center layer formed of an open-cell polyurethane matrix filled with a combination of lattices so as to be plastically deformable, and a bottom layer of a resilient rubber material. The innersole deforms in conformance with the impression of a wearer''s foot so as to concurrently soften the foot fall by supporting a larger area of the foot while providing a resilient cushioning effect. In another embodiment, the innersole incorporates an additional area which cups under and provides a minor amount of support to the arch region of the wearer''s foot. In addition, the innersole is used by an orthopedic physician to obtain a record of the actual pressure exerted by a foot in a shoe for the purpose of prescribing or diagnosing the foot problems of a patient.
An innersole as claimed in claim 1 wherein said upper layer comprises leather having its upper surface adapted to be engaged by the foot of the wearer.
Claim 2
Dependent Claim
14 words
An innersole as claimed in claim 1 wherein said bottom layer is natural rubber.
Claim 3
Dependent Claim
14 words
An innersole as claimed in claim 1 wherein said bottom layer is synthetic rubber.
Claim 4
Dependent Claim
16 words
An innersole as claimed in claim 1 wherein said upper layer is a vinyl plastic material.
Claim 5
Dependent Claim
18 words
An innersole as claimed in claim 1 including adhesive means for bonding said layers in said laminated relationship.
Claim 6
Dependent Claim
30 words
An innersole as claimed in claim 1 wherein said innersole includes arch-support means positioned in the region adapted to be engaged by the arch of the foot of the wearer.