B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/14 (2006.01) B29C 47/02 (2006.01) B29C 47/06 (2006.01) B60J 7/00 (2006.01) B60J 10/00 (2006.01) B60J 10/12 (2006.01)
Patent
CA 2276746
A process for forming an encapsulated window assembly (60) comprising a gasket member (54) surrounding a peripheral region of a transparent sheet (40) and a periphery seal assembly (42) secured to the gasket member (54). The peripheral region of the transparent sheet (4), as well as a preformed periphery seal assembly (42), are positioned within a mold cavity. The periphery seal assembly (42) includes an elastomeric seal (44) secured to a seal support member (46), with the seal support member (46) being relatively rigid as compared with the elastomeric seal (44). The mold is closed, bringing the mold sections (12, 30) into facing relationship, whereby opposed surfaces of the seal support member (46) of the periphery seal assembly (42) are engaged between a surface of the lower mold section (30) and a surface of the upper mold section (12). A molding material is injected into the mold (10) so as to fill the mold cavity, is allowed to solidify, and the mold (10) is opened and the encapsulated window assembly (60) is removed. The invention also relates to the resulting encapsulated glazing unit and mold apparatus.
L'invention concerne un procédé de formage d'un ensemble fenêtre (60) encapsulé comportant un joint d'étanchéité (54) qui entoure une région périphérique d'une feuille (40) transparente, et un ensemble joint périphérique (42) fixé au joint d'étanchéité. La région périphérique de la feuille (40) transparente, ainsi qu'un ensemble joint périphérique (42) préformé, sont placés dans une cavité de moule. L'ensemble joint périphérique (42) comprend un joint élastomère (44) fixé à un élément de support (46) de joint, l'élément de support de joint étant relativement rigide en comparaison avec le joint élastomère (44). Le moule est fermé ce qui amène les sections (12, 30) du moule à se faire face, et des surfaces opposées de l'élément de support (46) de joint de l'ensemble joint périphérique sont mises en contact entre une surface de la section de moule inférieure (30) et une surface de la section de moule supérieure (12). On injecte une matière de moulage dans le moule (10) de manière à remplir la cavité de moule, on laisse la matière se solidifier, puis le moule (10) est ouvert et l'ensemble fenêtre (60) encapsulé est retiré. L'invention concerne également l'unité de vitrage encapsulée produite ainsi qu'un appareil de moulage.
Libbey-Owens-Ford Co.
Macrae & Co.
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