Attachment system for replaceable helmet respirator lens

Details Attachment system for replaceable helmet respirator lens Attachment system for replaceable helmet respirator lens

A - Human Necessities

42

B

A42B 3/22 (2006.01) A62B 18/08 (2006.01)

Patent

CA 2321083

A replaceable lens attachment system (10) for respiratory devices and methods of use. The replaceable lens attachment system (10) includes a face shield frame (14) having rotatable attachment members (32) and a replaceable lens (16). The rotatable attachment members (32) include cams (34) and flanges (36). The attachment system (10) may further comprise a helmet respirator with support elements (15) disposed thereon. The method includes bowing the lens (16) and inserting it into the frame (14). The rotatable attachment members are rotated to urge the lens into the frame (14) and cover the frame. The flanges (36) and support elements (15) provide impact resistance to the lens.

L'invention a trait à un système (10) de fixation pour lentille remplaçable de dispositifs respirateurs et à des procédés d'utilisation associés. Le système (10) de fixation pour lentille remplaçable comporte un écran (14) facial équipé d'éléments (32) de fixation rotatifs et une lentille (16) remplaçable. Les éléments (32) de fixation rotatifs comprennent des saillies (34) et des embases (36). Le système (10) de fixation peut comporter en outre un respirateur casque équipé d'éléments (15) d'appui placés sur celui-ci. Le procédé comporte les étapes consistant à plier la lentille et insérer celle-ci dans le cadre (14). On tourne les éléments de fixation rotatifs pour bloquer la lentille (16) à l'intérieur du cadre (14) et couvrir celui-ci (14). Les embases (36) et les éléments (15) d'appui confèrent à la lentille une résistance aux chocs.

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