| 摘要 |
Proposed is a door mechanism with pneumatic driving for a passenger railroad car. This door comprises a spindle mechanism (H) with rotary actuation with which at least one output member linearly movable is engaged and that can be driven rotatably by means of a pneumatic actuator (AN) disposed on the top right portion (H) of the actuation spindle in which the actuation motor is arranged (22), the actuator having a front dampening chamber (FDC) to avoid knocking when opening the door and a rear dampening chamber (RDC) for locking in a second step and gently closing the doors; a mechanical blocking brake is arranged in the central part and below the actuation spindle that performs a temporary blocking of the rotary motion of the spindle (14). |
