Support and cushioning system for footwear

A - Human Necessities – 43 – B

Patent

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Details

A43B 13/20 (2006.01) A43B 13/40 (2006.01) A43B 19/00 (2006.01) A43B 21/28 (2006.01) A43B 21/32 (2006.01)

Patent

CA 2236713

A support and cushioning system for an article of footwear which includes a resilient insert (102) disposed between a midsole (606) and an outsole (604) of a shoe. The resilient insert (102) includes several chambers (104, 106, 108, 110) disposed in a heel portion (103) of the resilient insert (102). These chambers (104, 106, 108, 110) are fluidly interconnected to each other via periphery passages (136). The resilient insert (102) also includes several chambers (114, 116, 118, 120) disposed in a forefoot portion (113) of the resilient insert (102). These chambers (114, 116, 118, 120) are also fluidly interconnected to each other. A connecting passage (124) connects the chambers (104, 106, 108, 110) in the heel portion (103) and the chambers (114, 116, 118, 120) in the forefoot portion (113) of the resilient insert (102). A bladder (1002) having a fluidly interconnected heel chamber (1004) and forefoot chamber (1006) is also inserted above the midsole (606) to provide added cushioning to the wearer. In one embodiment, the resilient insert (102) contains air at ambient pressure and the bladder (1002) contains air at slightly above ambient pressure.

La présente invention concerne un système de support et de coussinets destiné à des articles chaussants et constitué d'un intercalaire résilient (102) disposé entre la double semelle (606) et la semelle d'usure (604) d'une chaussure. L'intercalaire résilient (102) comporte plusieurs chambres (104, 106, 108, 110) réparties dans l'élément de talon (103) de l'intercalaire résilient (102), lesquelles chambres (104, 106, 108, 110) sont fluidiquement interconnectées entre elles par des passages périphériques (136). L'intercalaire résilient (102) comporte plusieurs chambres (114, 116, 118, 120) réparties dans l'élément d'avant-pied (113) de l'intercalaire résilient (10), lesquelles chambres (114, 116, 118, 120) sont également fluidiquement interconnectées entre elles. Un passage de connexion (124) relie les chambres (104, 106, 108, 110) de l'élément de talon (103) aux chambres (114, 116, 118, 120) de l'élément d'avant-pied (113). Une vessie (1002) constituée d'une chambre de talon (1004) fluidiquement interconnectée à une chambre d'avant-pied est également insérée au-dessus de la semelle intercalaire (606) de façon à produire un effet renforcé de coussinet. Selon une réalisation, l'intercalaire résilient (102) contient de l'air à pression ambiante, la vessie (1002) contenant de l'air à une pression légèrement supérieure à la pression ambiante.

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