Suspension system for roller blind-type door - has winding roller with cable and pulley systems incorporating resilient tensioning devices

摘要

The roller door made from a sheet (1) of material which may be transparent, is raised and lowered vertically in the manner of a roller blind. At the top of the door opening is a winding roller (2) and across the bottom of the sheet is a sealing strip (3), with its ends guided in the vertical side members (4) of the frame. These ends are connected to driving cables (5) which are also connected to tensioning elements. Each tensioning element is a spring or an elastic cord, or in an alternative design, a pneumatic spring is used. USE/ADVANTAGE - Easy installation, low maintenance, of roller door.