| 摘要 |
A door driving mechanism, especially for rail vehicles, composed of a double-acting pneumatic servomotor, and an endless fan belt. It is characterised in that the piston rod (2) of the double-acting pneumatic servomotor (1) is connected with the upper part of the endless fan belt (3) by means of a connector (4), with the coupling (5) and by means of the coupling (6) of the connector (4) of the piston rod (1), with the skid of the door wing (14), and the other door wing (15) is connected with the bottom part of the endless fan belt (3) by means of the bottom coupling (13). The fan belt (3) leans, on one side, against the guiding wheel (7) and, on the other side, on the wheel (9) stretching the endless fan belt (3). |
