B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 44/12 (2006.01) B29C 33/00 (2006.01) B29C 39/10 (2006.01)
Patent
CA 2196389
According to the invention, a novel guide member for integrally forming the fastening parts with the urethane mold and an integral molding method using said guide member are provided. The guide member comprises a guide portion that has an extended body which includes concave cross-section and at least one opening end, and isolation members provided near the ends of said guide portion. Said isolation members are detachable, and by engaging with the fastening surface of the fastening parts, they effectively block any seepage of liquid foaming raw material. With the integral forming method using said guide member of the invention, it is possible to embed ends of the fastening parts within the urethane mold and to improve its peeling strength at low cost
L'invention porte sur un nouvel élément de guidage servant à mouler un matériau de fixation, sur un produit moulé monobloc d'uréthane, et sur le procédé de moulage associé. L'élément comporte une partie de guidage en forme de corps allongé ouvert au moins à l'une de ses extrémités et de section droite concave, et des éléments isolants voisins des deux extrémités de ladite partie de guidage. Les éléments isolants, détachables, sont en contact avec la surface d'un élément de fixation et obturent de manière efficace l'arrivée du matériau liquide constitutif du produit expansé. Ledit procédé permet d'encastrer les extrémités de l'élément de fixation dans l'uréthane moulé tout en améliorant la résistance au pelage et cela pour un faible coût.
Gowling Lafleur Henderson Llp
Namba Press Works Co. Ltd.
LandOfFree
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