Patent ID: 6164014
Filing Date: 2000-12-26
Classification: E05D,E05F,E05Y

Abstract:
A cable control device in a sectional overhead door having a motor-driven counterbalance system comprising, a spring-loaded drive shaft, cable drums having cable grooves and carried by said drive shaft, end brackets of said counterbalance system for mounting said drive shaft, cables attached to and interconnecting said cable drums and the door and forming and releasing cable wraps of said cable in said cable grooves of said cable drums upon raising and lowering of the door, and cable retainers associated with said cable drums, said cable retainers having legs which fixedly mount said cable retainers on said end brackets and having arcuate hoods extending axially of said cable drums over said grooves and through a circumferential are of said cable drums of approximately 10 to 30 degrees, with at least a portion of said retainers spaced in close radial proximity to said cable grooves for engaging a portion of at least one of said cable wraps to maintain engagement of said cable wrap with said cable drums in the event of the development of slack in said cables.