| 摘要 |
A device is provided for shifting a mechanical shifter between a first shifting state and at least one second shifting state, especially for engaging and disengaging a parking brake for an automatic transmission. An adjusting member (4) is coupled with the shifter for shifting between the shifting states. A control member (5) is provided that can be coupled with the adjusting member (4). A coupling device (5, 6, 7, 12) can be actuated by an electric signal By this coupling device (5, 6, 7, 12) the adjusting member (4) and the control member (5) can be coupled with one another. The coupling device (5, 6, 7, 12) is designed such that the adjusting member (4) and the control member (5) are uncoupled from one another in case of loss of the electric signal. A drive (8, 9, 10, 11) is coupled with the control member (5) for driving the control member (5). A spring (13), is provided for shifting the shifter into the first shifting state in which it is coupled with the adjusting member (4) and an abutment (14) and is tensioned in relation to the adjusting member (4) and in the second shifting state such that the shifter is shifted into the first shifting state by the spring (13) via the adjusting member (4) in the uncoupled state. |
