| 摘要 |
Door with horizontally movable, flexible and coilable aprons provided with apron edge bars consisting of hinged sections incorporating electrical contacts. The latter serve to switch off the current and set the door drive motor into a freewheeling state. This takes place when the sections of the edge bars are pivoted relative to one another as a result of a collision with some object. Door with horizontally movable, flexible and coilable aprons provided with apron edge bars (4) consisting of hinged sections (14a, 14b) incorporating electrical contacts (18a, 18b). The latter serve to switch off the current and set the door drive motor into a freewheeling state. This takes place when the sections of the edge bars are pivoted relative to one another as a result of a collision with a vehicle or some other object. |
