Roll Up Door Spring Tensioning Device
AssigneeRoll-Up Door, Inc
InventorsKeith M. Nakoff, Mario Gurrola, Ethan A. Ward
Life of this patent
Estimating the term…
Abstract
A roll up door tensioning device is provided. A bracket having a first door side and a second outer side connects an axle to a support structure. A spring plate on the bracket second outer side has an inner circumference fixedly attached to a collared bearing assembly for rotatably supporting an axle through the bracket. The spring plate is fixedly attached to a tensioning wheel on the bracket first door side. A tensioning wheel on the bracket first door side forms a drive stop mechanism with a tensioning drive.
Claims12
A roll up door tensioning device, comprising:
- a bracket for connecting an axle to a support structure, said bracket having a first door side and a second outer side;
- a spring plate on said bracket second outer side, said spring plate having an inner circumference fixedly attached to a collared bearing assembly for rotatably supporting an axle through said bracket, said spring plate fixedly attached to a tensioning wheel on said bracket first door side;
- and,
- said tensioning wheel on said bracket first door side forming a drive stop mechanism with a tensioning drive.
A roll up door tensioning device, comprising:
- a bracket for connecting an axle to a support structure, said bracket having a first door side and a second outer side;
- a spring plate on said bracket second outer side, said spring plate having an inner circumference fixedly attached to a collared bearing assembly for rotatably supporting an axle through said bracket, said spring plate fixedly attached to a tensioning wheel on said bracket first door side;
- said tensioning wheel on said bracket first door side forming a drive stop mechanism with a tensioning drive on said bracket first door side;
- and,
- a tension bolt adjustable from said bracket second outer side for turning said tensioning drive.
A roll up door tensioning device, comprising:
- a bracket for connecting an axle to a support structure, said bracket having a first door side and a second outer side;
- a spring plate on said bracket second outer side, said spring plate having an inner circumference fixedly attached to a collared bearing assembly, said spring plate fixedly attached to a tensioning wheel on said bracket first door side;
- said tensioning wheel on said bracket first door side forming a drive stop mechanism with a tensioning drive on said bracket first door side;
- a tension bolt adjustable from said bracket second outer side for turning said tensioning drive;
- an axle through said bracket and rotatably supported by said collared bearing assembly;
- and,
- a torsion spring around said axle, a first end of said torsion spring attached to said tensioning wheel and a second end of said torsion spring attached to said axle.
Dependencies are inferred from the claim text.