Window blind assembly control crank gear

Details Window blind assembly control crank gear Window blind assembly control crank gear

E - Fixed Constructions

06

B

E06B 9/322 (2006.01) E06B 9/76 (2006.01)

Patent

CA 2428561

A window blind assembly control crank gear includes a top rod, an intermediate rod and a bottom rod pivoted to the intermediate rod. The top rod has a coupling block with a transverse pivot hole. The intermediate rod has a coupling lug including two upright sidewalls and two pivot holes respectively formed in the upright sidewalls and axially aligned. A fastener is passed through the pivot hole of the coupling block and the pivot holes of the coupling lug to pivotally secure the coupling block to the coupling lug between the upright sidewalls and to impart a pressure to the upright sidewalk against the coupling block for enabling the intermediate rod to be turned relative to the top rod and quickly positioned in an adjusted angular position.

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