High load operation of an industrial roll door
A high load operation industrial roll door, including a flexible door curtain windable about a top roll positioned above a door opening and provided with a drive system. The roll door includes a bottom beam fastened to the door curtain, and a biasing spring, for resisting movement of the door upon application of a load thereon, and a positive stop preventing movement of the biasing means beyond a predetermined point.
1. A rolling door comprising:
a roll and a means for collecting a cable positioned near an aperture for the door and provided with a drive system;
a door curtain to be wound upon the roll and unwound from said roll;
a biasing means operable to travel or stretch when an external load is applied to the curtain;
the cable to be wound and unwound from said means for collecting said cable, and having a first end connected to a bottom of said curtain, the cable running therefrom over pulleys, and a second end of the cable being connected to the cable-collecting means; and
means for preventing the biasing means from traveling beyond a predetermined point, so to prevent movement of the curtain when the load is applied to the curtain when in a closed position.
2. The rolling door of claim 1 , wherein the biasing means is positioned on one side of the door or near one of a first end of the door or an opposite end thereof.
3. The rolling door of claim 1 , wherein the biasing means are arranged on each side of the door and connected in one of parallel or serial arrangement.
4. The rolling door of claim 1 , wherein the biasing means comprises one or more springs.
5. The rolling door of claim 4 , wherein the springs can be selected from the group consisting of tension resistant springs, compression resistant springs, hydraulic springs, and pneumatic springs.
6. The rolling door of claim 5 , wherein two or more springs are connected in series.
7. The rolling door of claim 5 , wherein two or more springs are connected in parallel.
8. The rolling door of claim 1 , wherein the biasing means comprises rubber rope or ropes connected in parallel or loops.
9. The rolling door of claim 1 , wherein the biasing means is one or more gas springs.
10. The rolling door of claim 1 , wherein the biasing means is a spring element, such that said spring element also acts as the means for preventing itself from traveling beyond a predetermined point when the spring element is either elongated or compressed maximally.
11. The rolling door of claim 1 , wherein the biasing means is a counterweight.
12. The rolling door of claim 1 , wherein said means for preventing said biasing means from traveling beyond said predetermined point is positioned at one of a first end of the door end or the opposite end thereof.
13. The rolling door of claim 1 , wherein a rigid stop is provided as said means for preventing biasing means travel.
14. The rolling door of claim 1 , wherein the load applied is one of a wind force, pressure differences caused by air-conditioning fans, a vertical force, or a horizontal force.
15. The rolling door of claim 1 , further comprising means for preventing movement of the roll when the load is applied to the closed curtain in a closed position.
16. The rolling door of claim 15 , wherein said means for preventing roll movement is a drive system brake.
17. The rolling door of claim 15 , wherein said means for preventing roll movement is a locking mechanism.
18. The rolling door of claim 1 , further comprising one of a mechanical or electromechanical lock for fixing the door curtain in the closed position.
19. The rolling door of claim 1 , further comprising one or more of a door blade edge fixing device, wind bars, or stiff door blade reinforcements.
20. The rolling door of claim 1 , wherein said cable experiences minimal elongation when under tension.
21. The rolling door of claim 1 , wherein said door is provided with an anti-crash device.
22. The rolling door of claim 21 , wherein said anti-crash device operates fully when the door is in a substantially open position.
23. The rolling door of claim 18 , wherein a sensor is capable of releasing the lock to support an anti-crash device.
24. The rolling door of claim 21 , wherein said door is provided with an anti-crash function that operates fully when the door curtain is in any of an open, closed or intermediate positions.
25. The rolling door of claim 1 , wherein said rolling door is oriented in one of a vertical, horizontal, or angled directions.
26. The rolling door of claim 1 , wherein the door curtain comprises one of coated fabric, polymeric film, or slats.
27. The rolling door of claim 1 , wherein the door curtain is flexible only in a wound or unwound direction.
28. The rolling door of claim 1 , wherein a bottom beam is attached to a bottom of the door curtain.
29. The rolling door of claim 1 , wherein said means for collecting said cable is a cable drum.
30. A rolling door comprising:
a roll and a means for collecting a first cable positioned near an aperture for the door and provided with a drive system;
a door curtain to be wound upon the roll and unwound from said roll;
a biasing means operable to travel or stretch when an external load is applied to the curtain;
the first cable being wound and unwound from said cable-collecting means and having one end connected thereto, the first cable running therefrom over first and second pulleys, and the other end of the first cable being fixed to a reduction pulley; and
a second cable with one end being fixed, the second cable running over the reduction pulley and a third pulley, and the other cable end being connected to the door curtain.
31. The rolling door of claim 30 , further comprising means for preventing the biasing means from traveling beyond a predetermined point, so to prevent movement of the door curtain when the load is applied.
32. The rolling door of claim 30 , wherein the biasing means is positioned on one side of the door or near one of a first end of the door or an opposite end thereof.
33. The rolling door of claim 30 , wherein the biasing means are arranged on each side of the door and connected in one of parallel or serial arrangement.
34. The rolling door of claim 30 , wherein the biasing means comprises one or more springs.
35. The rolling door of claim 34 , wherein the springs can be selected from the group consisting of tension resistant springs, compression resistant springs, and pneumatic springs.
36. The rolling door of claim 35 , wherein two or more springs are connected in series.
37. The rolling door of claim 35 , wherein two or more springs are connected in parallel.
38. The rolling door of claim 30 , wherein the biasing means comprises rubber rope or ropes connected in parallel or loops.
39. The rolling door of claim 30 , wherein the biasing means is one or more gas springs.
40. The rolling door of claim 30 , wherein the biasing means is a spring element, such that said spring element also acts as the means for preventing itself from traveling beyond a predetermined point when the spring element is either elongated or compressed maximally.
41. The rolling door of claim 30 , wherein the biasing means is a counterweight.
42. The rolling door of claim 30 , wherein said means for preventing said biasing means from traveling beyond said predetermined point is positioned at one of a first end of the door end or the opposite end thereof.
43. The rolling door of claim 31 , wherein a rigid stop is provided as said means for preventing biasing means travel.
44. The rolling door of claim 30 , wherein the load applied is one of a wind force, pressure differences caused by air-conditioning fans, or a vertical force.
45. The rolling door of claim 30 , further comprising means for preventing movement of the roll when the load is applied to the curtain in a closed position.
46. The rolling door of claim 45 , wherein said means for preventing roll movement is a drive system brake.
47. The rolling door of claim 45 , wherein said means for preventing roll movement is a locking mechanism.
48. The rolling door of claim 30 , further comprising one of a mechanical or electromechanical lock for fixing the door curtain in the closed position.
49. The rolling door of claim 30 , further comprising one or more of a door blade edge fixing device, wind bars, or stiff door blade reinforcements.
50. The rolling door of claim 30 , wherein said cable experiences minimal elongation when under tension.
51. The rolling door of claim 30 , wherein said door is provided with an anti-crash device.
52. The rolling door of claim 51 , wherein said anti-crash device operates fully when the door is in a substantially open position.
53. The rolling door of claim 48 , wherein a sensor is capable of releasing the lock.
54. The rolling door of claim 51 , wherein said door is provided with an anti-crash function that operates fully when the door curtain is in any of an open, closed or intermediate positions.
55. The rolling door of claim 30 , wherein said rolling door is oriented in one of a vertical, horizontal, or angled directions.
56. The rolling door of claim 30 , wherein the door curtain comprises one of coated fabric, polymeric film, or slats.
57. The rolling door of claim 30 , wherein the door curtain is flexible only in a wound or unwound direction.
58. The rolling door of claim 30 , wherein a bottom beam is attached to the bottom of the door curtain.
59. The rolling door of claim 30 , wherein said means for collecting said cable is a cable drum.