Tensioning tool for a counterbalance system for sectional doors
First Claim
1. A detachable counter assembly for a door system having a counterbalance system that includes a counter balance spring that is wound by a tool adapter to provide a selected tension for compensating for the weight of the door, the counter assembly comprising, a counter mechanism selectively rotatably affixed to the tool adapter, a sensor supported adjacent said counter mechanism and adapted to track rotation of said counter mechanism to generate tension information, and a display for said tension information associated with said counter mechanism.
3 Assignments
0 Petitions
Accused Products
Abstract
A door system (10) including, a door (d) movably mounted on a track assembly (15), a counterbalance system (20) connected to the door and having at least one spring (25), a tool adapter (26) proximate at least one end of the counterbalance system, a detachable winding assembly (30) adapted to selectively engage and selectively rotate the tool adapter to adjust tensioning of the spring, and a locking assembly (36) interacting with the counterbalance system to maintain a selected tensioning of the counterbalance system upon detaching the winding assembly from the tool adapter.
25 Citations
26 Claims
- 1. A detachable counter assembly for a door system having a counterbalance system that includes a counter balance spring that is wound by a tool adapter to provide a selected tension for compensating for the weight of the door, the counter assembly comprising, a counter mechanism selectively rotatably affixed to the tool adapter, a sensor supported adjacent said counter mechanism and adapted to track rotation of said counter mechanism to generate tension information, and a display for said tension information associated with said counter mechanism.
- 6. A door system comprising, a door movably mounted on a track assembly, a counterbalance system connected to said door and having at least one spring, a tool adapter proximate at least one end of said counterbalance system, a detachable winding assembly adapted to selectively engage and selectively rotate said tool adapter to adjust tensioning of said spring, and a locking assembly interacting with said counterbalance system to maintain a selected tensioning of said counterbalance system upon detaching said winding assembly from said tool adapter.
- 15. A detachable tensioning tool in combination with a door system comprising, a door movably mounted on a track assembly, a counterbalance system connected to said door, first and second tool adapters at each end of said counterbalance system connected to first and second springs, a winding assembly including a housing and adapted to selectively engage and selectively rotate either of said first and second tool adapters, and stop surfaces on said housing preventing rotation of said housing during tensioning of said counterbalance system.
- 25. A detachable tensioning tool for use with a door system having a door frame enclosing a door opening, a door movably mounted on a track assembly attached to the door frame, a counterbalance system supported on brackets attached to the door frame and at least one tool adapter at an end of the counterbalance system, the tensioning tool comprising, a winding assembly including a housing and adapted to selectively engage and selectively rotate the tool adapter and at least one stop on said housing adapted to operate independent of the brackets to prevent rotation of said housing during tensioning of the counterbalance system.
Specification