E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/42 (2006.01) E06B 9/40 (2006.01) E06B 9/56 (2006.01)
Patent
CA 2617780
The present invention is a roller clutch assembly for a roller blind which operates smoothly and quietly. The roller clutch assembly includes an elongated roller tube having first and second opposite ends and a clutch coaxially mounted to the first end of the tube. The clutch has a peripheral section rotatably mounted to a fixed hub, the peripheral section being mounted to the tube such that the tube is free to rotate. The assembly also includes an elongated rod mounted within the roller tube, the rod having opposite first and second ends, the first end of the rod being mounted to the hub of the clutch. A mount is rotatably attached to the second end of the rod for mounting the rod within the tube such that the tube and rod are substantially coaxially aligned. A coil spring is coaxially mounted onto the elongated rod, the coil spring having opposite first and second ends, the first end of the spring being fixed to the rod adjacent the first end of the rod, the second end of the spring being fixed to the mounting adaptor such that the spring can be wound and unwound on the rod by rotating the tube. The spring is stretched onto the rod sufficiently such that the spring does not kink when wound.
Ng Philip
Wills Norman
Borges Elias C.
Z.m.c. Metal Coating Inc.
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