| 摘要 |
The door wings of a vehicle door having a locking device are pivoted by means of a rotary column (4), the torque of which is generated by a piston/cylinder drive (7). Arranged in the pushing region of the piston/cylinder drive (7) is a pivotable locking element in the form of a pivoting arm (13) which is controlled by a pneumatic auxiliary drive (16). The piston (8a) of the piston/cylinder drive (7) is provided with a locking rod (11), in the pushing region of which the straight pivoting arm (13) is provided. The pivoting arm (13) is approximately parallel to the locking rod (11). The locking rod (11) is provided with an adjustable stop (14), and an actuating rod (15) of the pneumatic auxiliary drive (16) for the pivoting arm (13) is approximately perpendicular to the locking rod (11). This design ensures that, if the compressed air fails, the door wings remain locked. However, the pivoting arm (13) can easily be released by hand by pulling on the pull cord (19). <IMAGE> |
