E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/62 (2006.01) E06B 9/171 (2006.01) E06B 9/60 (2006.01) E06B 9/15 (2006.01)
Patent
CA 2087513
A support roller having a one-piece construction which can be cut to size to fit any sized doorway, with an outer perimeter of the support roller or flanges mounted on the support roller having a predetermined configuration to permit a rolling door, gate and the like to assume a substan- tially circular configuration when rolled up on the support roller, the support roller or each of the flanges being pro- vided with a longitudinally extending recess therein and a longitudinally extending bulge portion thereon for securely mounting an end of the rolling door, gate and the like thereon, where the recess and the bulge portion of the support roller or a rail member provided within the support roller engages with collar portions of the roll-up mechanism to prevent rela- tive rotation therebetween so that the support roller rotates with the collar portions. The roll-up mechanism includes a coil spring mounted between the collar portions in such a man- ner that the innermost collar portion winds up the coil spring when the rolling door, gate and the like is being lowered to a closed position so that the coil spring counterbalances the weight of the door, gate and the like to permit the rolling door, gate and the like to be easily opened, where the roll-up mechanism is mounted within the support roller. If required, additional coil springs can be added to the roll-up mechanism to counterbalance the,weight of heavier rolling doors, gates and the like.
Magro Sebastian
Magro Vincent
Kirby Eades Gale Baker
Magro Sebastian
Magro Vincent
LandOfFree
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