Patent ID: 6557301
Filing Date: 2003-05-06
Classification: E05B,E05D,E05F,E05Y

Abstract:
A locking mechanism for an overhead door driven by a motorized transmission, said overhead door being one of a tilting, swinging, or sectional door; a coupling mechanism coupling a panel of said door to a carrier; said transmission moving said carrier back and forth for preventing a closed door from opening when not subjected to force by said carrier; a lever and a connector, said lever being mounted on said carrier and pivoting around a first axis in two opposite directions; said lever having an engagement mechanism engaging a stationary counterbearing operating in conjunction with a track for guiding said carrier in locking the door, said engagement mechanism engaging said counterbearing as said lever pivots in one direction and disengages said counterbearing as the lever pivots in the opposite direction, said connector being rigid and in form of a connecting rod having an attachment mechanism at one end for attaching to said door panel and being pivoted at the other end to said lever around another axis at a distance from said first axis, said lever pivoting around said first axis in a first direction when said connector is pushed while in alignment with the door and pivoting in the opposite direction when said connector is pulled while in alignment with the door; said lever comprising two arms, said connector being attached to said first arm, said engagement mechanism engaging said counterbearing while said lever and thereby said second arm pivots in said first direction and pushes said connector attached to the door, said engagement mechanism disengaging from said counterbearing while said lever and thereby said second arm pivots in said opposite direction and pulls the connector attached to the door.