| 摘要 |
A lockable withdrawal device (12) whose lock is electrically connected to a parking brake of a commercial vehicle. The activated parking brake remains activated when the withdrawal device (12) is open. A conductor (1) to carry the signal triggering activation of the parking brake exhibits at least two switches (8,14), each actuated by a relay (9,15). The first switch (8) can be switched, when the withdrawal device (12) is open, by a relay (9) arranged in a latching circuit (2) that serves to connect the withdrawal device (12) to the conductor (1). The other switch (14) can be switched, when the parking brake lever (13) is operated, by a relay (15) arranged in a latching circuit (3) that serves to connect the parking brake lever (13) to the conductor (1). The two switches (8,14) are configured in series in the conductor (1). An interrupter (10) is arranged in the latching circuit (2) serving to connect the withdrawal device (12). The device is intended to prevent unintended rolling of the vehicle. |
