Roll-up door construction

Details Roll-up door construction Roll-up door construction

E - Fixed Constructions

06

B

160/8, 160/9

E06B 9/08 (2006.01) E05F 15/00 (2006.01) E06B 9/62 (2006.01) E06B 9/68 (2006.01) E06B 9/80 (2006.01)

Patent

CA 2019451

A roll-up door for enclosing a doorway in a building. The doer comprises a horizontal rotatable drum mounted above the doorway and a flexible door panel is wound on the drum. A pair of first pulleys are secured to opposite ends of the drum and one end of a flat belt is secured to each first pulley, while the opposite end of each belt is dead-ended an a fixed object. A counterbalancing weight is attached to the belt intermediate its ends and exerts a counterbalancing force to wind the door panel on the drum. A pair of second pulleys are secured to opposite ends of the drum and located adjacent the first pulleys. One end of a second flat belt is secured to each second pulley, while the apposite end of each second belt is connected to the lower end of the door panel. A drive member, such as a hydraulic motor, is operably connected to the drum and operation of the motor in one direction will unwind the door panel from the drum and move the door to a closed position, while operation of the motor in the opposite direction will wind the door panel on the drum to move the door panel to an open position. A resilient member or spring is connected to the second belt intermediate its ends and exerts a biasing force to stretch the door panel.

Affiliated with

Also associated with

Rating

Roll-up door construction does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roll-up door construction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll-up door construction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1819417