| 摘要 |
A roll-up door (1) comprises a number of mutually hinged sections (5) and a number of rollers (9) which are mounted along the sides of the door and serve to control the door, as the rollers are running in guide rails (8) at the sides of the door. Each guide rail has a U-shaped cross section with a web (10) and two flaps (11; 12). At each roller, a finger-blocking is mounted, which has the shape of, e.g. a disc (22) which, in a relatively short distance, extends to or past at least one of the longitudinal, free edges (27; 28) of the guide rail. Thereby, a person who is at the door, while it is moving, is efficiently prevented from getting his fingers caught between the stationary guide rail and one or more of the running rollers and/or the shafts (14) which carry the rollers. |
