Injection molded three-layer sole

Details Injection molded three-layer sole Injection molded three-layer sole

A - Human Necessities

43

B

A43B 13/04 (2006.01)

Patent

CA 2153082

An injection molded three-layer sole for an article of footwear is disclosed. The three-layer sole comprises a top molded layer formed from an injectable plastics material. An intermediate molded layer is formed from an injectable plastics material in underlying adjoining relation to the top molded layer. The intermediate molded layer has a primary undersurface and at least one integral, downwardly depending plug portion terminating in a first contact patch. A bottom molded layer is formed from an injectable plastics material different from the injectable plastics material of the intermediate molded layer in underlying adjoining relation to the primary undersurface. The bottom molded layer has a second contact patch and at least one interiorly disposed opening through which the downwardly depending plug portion extends, with the first and second contact patches in substantial alignment one with the other. The material of the bottom molded layer is abrasion resistant, while the material of the intermediate layer is shock-absorbing and/or slip-resistant.

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