Winding system, rolling door assembly including the same and...

Details Winding system, rolling door assembly including the same and... Winding system, rolling door assembly including the same and...

2005-11-01

2005-11-01

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Roll type

With rotating means

C160S191000, C160S318000, C242S375100, C049S200000

Reexamination Certificate

active

06959751

ABSTRACT:
A winding system for winding a rolling door assembly. The winding system includes a support bracket, first and second gears. The support bracket is preferably rigidly connectable to a fixed structure of the rolling door assembly, and has a receiving device and a supporting device. The first gear is pivotally mounted about the receiving device of the support bracket and rotatable thereabout along opposite first and second directions of rotation. The second gear is pivotally mounted about the supporting device of the support bracket and rotatable thereabout along opposite first and second directions of rotation. The first gear is operatively connected to a corresponding end of the counterbalancing spring of the rolling door assembly. The second gear is threadably engaged with the first gear such that, a rotation of the second gear along one of its first and second directions of rotation causes the first gear to rotate along a corresponding one of its first and second directions of rotation, thereby resulting in a corresponding winding of the counterbalancing spring of the rolling door assembly.

REFERENCES:
patent: 1937209 (1933-11-01), Trant
patent: 3979977 (1976-09-01), Dorma
patent: 5964268 (1999-10-01), Carper et al.
patent: 6125582 (2000-10-01), Mondragon et al.
patent: 6263942 (2001-07-01), Miller

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