E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 1/02 (2006.01) A62C 2/24 (2006.01) E06B 9/08 (2006.01) E06B 9/78 (2006.01)
Patent
CA 2130728
A closure apparatus for closing an opening in a partition with a frame disposed around the opening includes a drum member rotatably mounted to the partition at the top end of the opening. It also includes a curtain member secured to the drum member. The curtain member winds around the drum member to move out of the opening in the partition; and it extends from the drum member to close the opening. A counterweight connected to the drum member offsets the weight of the curtain member; and a reducing weight reduces the weight of the counterweight to allow the curtain member to drop from a raised position. An activating assembly engages the reducing weight with the counterweight and allows the curtain member to unwind from the drum member and close the opening.
Cette invention concerne un appareil de fermeture d'une baie dans une cloison délimitée par un cadre. L'appareil objet de l'invention comprend un tambour monté au sommet de la baie de façon à pouvoir tourner. Il comprend également un rideau attaché au tambour et adapté pour s'enrouler autour de celui-ci pour dégager la baie et se dérouler pour fermer ladite baie. Un contrepoids raccordé au tambour compense le poids du rideau tandis qu'un contre-contrepoids agit pour réduire l'effet du contrepoids et permettre au rideau de retomber en position de fermeture. Un mécanisme de commande oppose le contre-contrepoids au contrepoids pour permettre au rideau de se dérouler et de fermer la baie.
Bonnell Joel Martin
Burgess Coy Harlow
Borden Ladner Gervais Llp
Raynor Garage Doors
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