SYSTEMS AND METHODS FOR ALIGNING ROLL-UP DOOR CURTAINS

摘要

PROBLEM TO BE SOLVED: To provide methods for aligning roll-up curtains.SOLUTION: A door 10 includes a roller 12 that is rotatable about an axis 38. The door further includes a curtain 16 having a wrapped section wrapped around the roller and an unwrapped section extending tangentially away from the wrapped section. The unwrapped section adjoins the wrapped section at a first point proximate to a first end of the roller and at a second point proximate to a second end of the roller. The axis is closer to the second point than to the first point when the curtain is at the intermediate position. The door includes a guide member to guide the curtain onto the roller.SELECTED DRAWING: Figure 1