E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
E06B 9/08 (2006.01) E06B 9/13 (2006.01) E06B 9/58 (2006.01) E06B 9/62 (2006.01)
Patent
CA 2100844
- 13 - INDUSTRIAL DOOR HAVING RELEASABLE BEAM AND TENSION BRACKET RETENTION MECHANISM ABSTRACT OF THE DISCLOSURE An industrial roll-up door, having a releasable beam and a tension bracket retention mechanism. The door includes a flexible door panel, which is wound in coiled form on a drum, and an elongated beam is attached to the lower end of the door panel. The ends of the beam are releasably connected to brackets that can be movable in vertical guide tracks mounted along the sides of the doorway. A biasing mechanism attached to each bracket exerts a downward tensioning force on the door panel when in the closed position. A pair of belts each having the same thickness as the door panel are wound on the drum adjacent the side edges of the door panel, and the free end of each belt is connected to the respective bracket. If the beam is released from the brackets by virtue of the door panel, when in the closed or partially open position, being subjected to a transverse impact, the connection of the belts to the brackets will resist the biasing force and retain the brackets at the same proximate vertical level as the beam so that the ends of the beam can be conveniently reattached to the brackets.
Borden Ladner Gervais Llp
Kelley Company Inc.
LandOfFree
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