Conforming shoe construction using gels and method of making...

Details Conforming shoe construction using gels and method of making... Conforming shoe construction using gels and method of making...

A - Human Necessities

43

B

A43B 7/28 (2006.01) B29D 35/12 (2010.01) B29D 35/14 (2010.01) A41C 3/10 (2006.01) A42B 1/22 (2006.01) A42B 3/12 (2006.01) A43B 7/02 (2006.01) A43B 7/14 (2006.01) A43B 7/16 (2006.01) A43B 7/18 (2006.01) A43B 13/18 (2006.01) A43B 13/38 (2006.01) A43B 17/16 (2006.01) A43B 23/02 (2006.01) A43B 23/26 (2006.01) A47C 27/08 (2006.01) A61K 8/91 (2006.01) A61Q 7/00 (2006.01) A61Q 19/00 (2006.01) A63B 71/14 (2006.01) A63B 71/08 (2006.01)

Patent

CA 2190255

A shoe that conforms to foot contours and provides cushioning is comprised of a shoe sole and a shoe upper attached to the shoe sole. The shoe upper is comprised of an outer layer, an inner layer and a conforming layer therebetween, wherein a first portion of the conforming layer is comprised of viscoelastic gel and a second portion of the conforming layer is comprised of environmentally-responsive gel. The environmentally-responsive gel is preferably a temperature-responsive gel that will react to the heat emanating from a foot inserted into the shoe to express a liquid. The viscoelastic gel is preferably a soft, flowable gel that conforms to foot contours. The shoe may alternatively incorporate a thermally responsive polymer gel or a reversibly gelling polymer network which exhibits a dramatic change in viscosity in response to a change in environmental stimulus, such as temperature. The thermally responsive polymer gel will react to the heat generated by a foot inserted into the shoe to increase viscosity and provide the foot a measure of support.

L'invention concerne une chaussure qui épouse le contour du pied et assure un amortissement. Cette chaussure se compose d'une semelle et d'un dessus fixé à la semelle. Le dessus de la chaussure est constitué d'une couche externe, d'une couche interne et d'une couche de forme adaptable entre les deux. Une première partie de la couche adaptable se constitue d'un gel viscoélastique et une deuxième partie de cette couche adaptable est formée d'un gel agissant en réponse à l'environnement. Ce gel est, de préférence, un gel thermoréactif qui réagit à la chaleur émanant d'un pied inséré dans la chaussure pour exprimer un liquide. Le gel viscoélastique est, de préférence, un gel fluide et doux qui s'adapte aux contours du pied. La chaussure peut également comprendre un gel polymère thermoréactif, ou un réseau polymère de gélification réversible dont la viscosité change fortement en réponse à un changement du stimulus de l'environnement, tel que la température. Le gel polymère thermoréactif réagit à la chaleur générée par un pied inséré dans la chaussure pour augmenter la viscosité et constituer un meilleur support pour le pied.

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