E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
268/28
E05F 15/00 (2006.01) E05F 15/16 (2006.01)
Patent
CA 1290773
DOOR DRIVE MECHANISM ADAPTER UNIT Abstract An adapter unit for mechanically driven doors of the type such as garage doors driven by a motor and guided at the sides thereof by guide rails mounted to a frame that defines the door opening. The adapter unit comprises an elongated member adapted to be mounted to the back side of the door receiving channel of one of the guide rails. The elongated member defines an elongated inverted U-shaped channel in which a chain is slidably received. A sprocket is rotatably mounted in the elongated member within a circular recess defined in the channel for engagement with the chain. The sprocket is further adapted to centrally engage a shaft of the motor to thus rotate therewith. A door drive mechanism is mounted at one end of the chain and is adapted to be removably coupled to a bracket provided on an inner lower part of the door. The sprocket and chain are adapted to remain engaged between the two extreme positions of the chain which correspond with the open and closed positions of the door. Therefore, upon actuation of the motor, the chain is displaced in the channel thereby causing movement of the door as it is linked thereto by the door drive mechanism engaged in the bracket.
605065
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Somfy Ulc
LandOfFree
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