Self-tightening shoe

Details Self-tightening shoe Self-tightening shoe

A - Human Necessities

43

C

A43C 11/00 (2006.01)

Patent

CA 2265960

The shoe incorporates adjustable straps (18) that are positioned to tighten the shoe casing (12) around a wearer's instep. A retractor mechanism (28) incorporates elastic members (84, 86, 130, 132). The elastic members (84, 86, 130, 132) are charged when the wearer loosens the shoe by pulling on the straps (18). The stored energy is released when a catch (104, 156) is released releasing the elastic members (84, 86, 130, 132) to tighten and cinch the shoe on the wearer's foot. During charging a first elastic member (18, 130) is extended an intermediate distance and a second elastic member (86, 132) is charged a greater distance. The second elastic member (86, 132) triggers the release of the first elastic member (84, 130) when it reaches the intermediate position, increasing the tension available for cinching the straps.

Chaussure comprenant des lanières (18) réglables placées de manière à serrer l'enveloppe (12) de la chaussure autour du cou-de-pied. Un mécanisme de rétraction (28) comporte des éléments élastiques (84, 86, 130, 132) qui sont sollicités lorsque l'utilisateur desserre la chaussure en tirant sur les lanières (18). L'énergie emmagasinée est relâchée par l'ouverture d'un cliquet (104, 156) qui a pour effet de libérer les éléments élastiques (84, 86, 130, 132), qui vont alors serrer la chaussure autour du pied. Au moment de la mise sous tension, un premier élément élastique (18, 130) est tendu sur une distance intermédiaire et un second élément élastique (86, 132) est tendu sur une distance plus grande. Le second élément élastique (86, 132) provoque la libération du premier élément élastique (84, 130) lorsqu'il atteint la position intermédiaire, augmentant ainsi la tension disponible pour serrer les lanières (18).

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