Moulded footwear

B - Operations – Transporting – 29 – D

Patent

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Details

B29D 35/00 (2010.01) B29D 35/08 (2010.01)

Patent

CA 2257093

A mould (14) for manufacturing an article of footwear comprises two mould halves (16); a hollow last (20) which includes a cylindrical downwardly open opening (30) at its foot end (26); and a first sole plate (34) which includes a projection (32) having a head portion (36) which is arranged to extend into the opening (30) in the last (20) in order to restrict movement of the last within the mould. Polyurethane is injected into cavity (44) defined between the last and mould halves (16) / sole plate (34) to form an inner sole of an article of footwear having a hole in it in a position where projection (32) cooperated with opening (30). This opening may then be plugged prior to the formation of an outer sole using a second sole plate (which does not include a projection (32)) instead of the first sole plate.

Un moule (14) servant à la fabrication d'un article chaussant est composé de deux moitiés de moule (16), d'une forme à chaussure creuse (20) présentant à sa base une ouverture cylindrique qui se prolonge vers le bas (30), et d'une première plaque de semelle (34) présentant une protubérance (32) dont la partie frontale (36) est façonnée pour se loger dans l'ouverture de la forme (20) et limiter le mouvement de ladite forme à l'intérieur du moule. On injecte du polyuréthane dans une cavité (44) que délimitent, d'une part, la forme et, d'autre part, les deux moitiés du moule (16) et la plaque de semelle (34), pour former une semelle intérieure d'un article chaussant présentant un orifice placé de telle sorte que la protubérance (32) vienne s'emboîter dans l'ouverture (30). On peut aussi obturer cette ouverture, avant la formation d'une semelle extérieure, en utilisant une deuxième plaque de semelle (sans protubérance (32)) en lieu et place de la première plaque de semelle.

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