B - Operations – Transporting – 60 – J
Patent
B - Operations, Transporting
60
J
B60J 10/00 (2006.01) B29C 53/08 (2006.01)
Patent
CA 2485473
A process for forming linear, thermoplastic weatherseals into a bend position is provided which avoids buckling of the thinner surfaces of the weatherseal material. The process involves the use of a support insert which supports the thinner surfaces during the bending operation, and thus assists in preventing the deformation of the thinner weatherseal surfaces. The support is preferably constructed of a material which is unaffected by temperatures higher than the heat-deformation temperature used to set the weatherseal material into a bent configuration, and thus, the support insert retains its linear shape when removed from the bending press, and therefore, can be reused. An improved process for manufacturing bent thermoplastic weatherseal material results.
L'invention concerne un procédé de fabrication de joints d'étanchéité linéaires, thermoplastiques, sous forme courbe, permettant d'éviter tout plissement des surfaces plus fines du matériau du joint. Ledit procédé fait intervenir un insert support supportant les surfaces plus fines lors du processus de courbure, et permettant ainsi d'éviter la déformation des surfaces plus fines du joint. Ledit support est de préférence réalisé dans un matériau résistant aux températures supérieures à la température de déformation thermique employée pour imprimer une courbure au matériau du joint. Par ailleurs, ledit insert support conserve sa forme linéaire lorsqu'il est retiré de la presse de courbure, et peut donc être réutilisé. Le procédé de fabrication de joints thermoplastiques courbes est donc optimisé.
Ellis Peter J.
Kawase Haruhisa
Zohar Avi
Brandt Kerstin B.
Decoma International Inc.
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