| 摘要 |
The arms (3,4) are mounted on pivot points (5,6) of a door frame (7). The connection between the arms and the door leaf is on the outer rim of the door leaf (2) . A drive belt cable or chain acts as connection and runs over deflector rollers connected to a drive motor. The two arms of one door leaf are joined to a rigid unit by means of a length-adjustable support (8) bridging the space (A) between the arms. |
