Door operator coupling assembly

Details Door operator coupling assembly Door operator coupling assembly

E - Fixed Constructions

05

F

E05F 11/06 (2006.01) E05F 15/16 (2006.01) E06B 3/50 (2006.01) E06B 9/08 (2006.01)

Patent

CA 2054500

A screw and guide rail coupling assembly is for a garage door operator. The garage door operator has a motor-driven rotatable screw at least partially within a nonrotatable guide rail and a slide guided by the guide rail and movable longitudi- nally therealong by engagement with the screw and connectable to open and close the garage door. The screw is in at least first and second screw parts, and a screw coupling is adapted to interconnect adjacent ends of the first and second screw parts. The guide rail is in at least first and second guide parts, and a guide coupling adapted to interconnect adjacent ends of the first and second guide parts. The screw coupling is longitudinally spaced or offset from the guide coupling wherein the screw coupling is completely contained and supported within one of said first and second guide parts. The offset provides a significant increase in the maximum torque of the screw and guide rail coupling assembly.

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