J hook-type hook strip for a mechanical fastener

A - Human Necessities – 44 – B

Patent

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A44B 18/00 (2006.01) B29C 43/22 (2006.01)

Patent

CA 2265628

A method of making a hook strip having J-shaped hooks that can be used as a mechanical fastener. The method includes using an initial substrate of material formed as an array of upstanding precursor stems having distal tips at their ends opposite a backing. In addition, a heat source adapted for heating and a mechanism for deforming stem tips is provided. The substrate is positioned relative to the heat source such that a portion of the upstanding stems on the array is heated. Subsequently, the substrate is moved to a position relative to the mechanism for deforming to create a hook strip of J- shaped hooks from the heated portion of the upstanding stems. In addition, an article of manufacture, made in accordance with the method, is provided which includes a hook portion of a hook-and-loop type of mechanical fastener.

L'invention porte sur un procédé de production de bande à crochets pourvue de crochets en forme de J, laquelle bande peut servir d'attache mécanique. Le procédé consiste à utiliser un substrat initial d'un matériau se présentant sous l'aspect d'une rangée de tiges faisant office de précurseur dressées à la verticale et pourvues de pointes distales sur leurs extrémités opposées au support. On utilise, en outre, une source de chaleur ainsi qu'un mécanisme déformant pour chauffer et déformer ces pointes de tige. On positionne le substrat par rapport à la source de chaleur de manière à ne chauffer qu'une partie des tiges dressées à la verticale. On positionne ensuite le substrat par rapport au mécanisme déformant de manière à former une bande à crochets en J sur la région chauffée comportant les tiges dressées à la verticale. L'invention a trait, de surcroît, à un article fabriqué, produit grâce à ce procédé, cet article comportant une région à crochets du type à fermeture par contact pour attache mécanique.

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