Window blind assembly control crank gear
AssigneeNien Made Enterprise Co., Ltd.
InventorMing Nien
Life of this patent
Estimating the term…
Abstract
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 sidewalls 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.
Claims13
A window blind assembly control crank gear comprising:
- a top rod having a coupling block at a bottom end thereof and a transverse pivot hole extended through two opposite sidewalls of said coupling block;
- an intermediate rod having a coupling lug at a top end thereof and a bottom end, said coupling lug having a base, two upright sidewalls upwardly extended from said base at two sides, and two pivot holes respectively formed in said upright sidewalls and axially aligned;
- a fastener passed through the pivot hole of said coupling block and the pivot holes of said coupling lug to pivotally secure said coupling block to said coupling lug between said upright sidewalls of said coupling lug and to impart a pressure to said upright sidewalls against the two opposite sidewalls of said coupling block;
- and
- a bottom rod pivoted to the bottom end of said intermediate rod at a top end thereof.
A window blind assembly comprising:
- a headrail;
- a plurality of blind slats suspended from said headrail;
- a control system for regulating light shading status of the blind slats;
- a top rod having a top end connected to said control system, a coupling block at a bottom end thereof and a transverse pivot hole extended through two opposite sidewalls of said coupling block;
- an intermediate rod having a coupling lug at a top end- thereof and a bottom end, said coupling lug having a base, two upright sidewalls upwardly extended from said base at two sides, and two pivot holes respectively formed in said upright sidewalls and axially aligned;
- a fastener passed through the pivot hole of said coupling block and the pivot holes of said coupling lug to pivotally secure said coupling block to said coupling lug between said upright sidewalls of said coupling lug and to impart a pressure to said upright sidewalls against the two opposite sidewalls of said coupling block;
- and
- a bottom rod pivoted to the bottom end of said intermediate rod at a top end thereof.
Dependencies are inferred from the claim text.