Winding device and methods
OwnerZhide David FENGinventor
Life of this patent
Estimating the term…
Abstract
A winding device for adjusting the elastic energy of an overhead door spring system installed on a wall structure, the door having at least a door panel which can be moved up and down constrained within a track. The door also has a counterbalance system with a coil spring having a stationary end and a winding end. The door system also has a central shaft held within the counterbalance system. The winding device has a worm gear with a flange, or collar portion, a worm screw engaged by the worm gear, a box or container or a retainer to hold the worm gear and worm screw together in an engagement status. The worm gear is engaged with the central shaft by at least one fastener. It can also be used to lift said door directly when said spring is broken, or there is no spring at all.
Claims20
A winding device for adjusting the elastic energy of an counterbalance system of an overhead door system installed with a wall structure, said door system having at least a door panel which can be moved up and down with guidance of a track, said counterbalance system having a coil spring with a stationary end and a winding end, said stationary end being fixed with said wall structure directly or indirectly, said counterbalance system also having a central shaft to be held within said spring, said counterbalance system also having a cable whose upper end is connected with said winding end directly, or through said central shaft, and whose lower end is connected with said panel, said winding device comprising:
- a worm gear, said worm gear having a flange portion, said worm gear including said flange portion having a center through hole along its center line;
- a worm screw engaged by said worm gear;
- and a box, or container, or retainer to hold said worm gear and worm screw together in engagement status;
- wherein said center through hole of said worm gear being engaged with said central shaft, and being fixed fully together by a fastener group which has at least one fastener;
- and wherein said winding device being detachable from said shaft after working with said counterbalance system.
A winding device for operation of an overhead door system having a connecting means, or shaft, said winding device comprising:
- a worm gear, said worm gear having at least one flange portion, said worm gear including said flange portion having a center through hole along its center line;
- a worm screw;
- a box, or retainer to keep said worm gear and worm screw together in engagement status;
- and a group of first fasteners having at least one fastener attached to said flange portion for fixing said flange portion to said connecting means.
A winding device for working together with a general shaft to move a general object from location one to location two, said winding device comprising:
- a worm gear, said worm gear having a center through hole along its center line;
- a worm screw;
- a box, or retainer to keep said worm gear and worm screw together in engagement status;
- and a group of first fasteners having at least one fastener attached to said worm gear for fixing it to said shaft.
A winding device for lifting an overhead door system installed with a wall structure, said door system having at least a door panel which can be moved up and down with guidance of a track, said door system also having a central shaft being fixed on said wall structure and above said door panel, said door system also having a cable whose upper end is connected with said central shaft, and whose lower end is connected with said panel, said winding device comprising:
- a worm gear, said worm gear having a flange portion, said worm gear including said flange portion having a center through hole along its center line;
- a worm screw engaged by said worm gear;
- and a box, or container, or retainer to hold said worm gear and worm screw together in engagement status;
- wherein said center through hole of said worm gear being engaged with said central shaft, and being fixed with said central shaft;
- and wherein when said winding device being capable to turned said shaft to lift said door panel;
- wherein said winding device being detachable from said shaft after being used to lift said door panel.
Dependencies are inferred from the claim text.