Sectional door has panel segments, side vertical and horizontal guide tracks, curved segment, rollers , curve and impact edge.

摘要

The separate interlinked panel segments (2) move along a side, vertical and horizontal guide track (3,4) joined to a curved segment (5) by means of rollers. A second horizontal guide track (8) is positioned above the first track in which the rollers (10) for the uppermost panel run, so that the uppermost panel is parallel with the impact edge (9). The second horizontal track runs under a curve (11) pointing towards the impact edge. The curve runs into a horizontal section (12) of the track.