Patent ID: 6019156
Filing Date: 2000-02-01
Classification: E06B

Abstract:
An overhead door comprising:a roll member;a door panel rolled onto said roll member such that said door panel is vertically movable between a lowered position when the door is closed and a raised position when the door is open, said door panel having a lower end;a motor drivingly connected to said lower end of said door panel to selectively drive said lower end of said door panel downwardly, said roll being free from a driving interconnection with said motor for movement toward said raised position; andmeans for drivingly connecting said motor to said lower end of said door panel to drive said door panel downwardly in response to actuation of said motor;wherein said connecting means comprises a flexible drive element driven by said motor and connected to said lower end of said door panel, and wherein said flexible drive element comprises an endless belt that drives said lower end of said door panel downwardly when said motor is driven in one direction, and drives said lower end of said door panel upwardly when said motor is driven in the opposite direction.