| 摘要 |
<p>The invention relates to a drive system (1) for the automatic actuation of a closing part (2), particularly a tailgate or a trunk lid, of a motor vehicle (3), comprising a coupling device (13) coupled on the drive side to an electric motor (11) and on the output side to the closing part (2), said coupling device having a first friction tight element (22), which is tensioned against a contact surface (28) of a stationary component (24), and having a second friction tight element (23), which couples a drive element (20) to a driven element (25) and which can be tensioned against a contact surface (29) of a transmission element (21) coupled to the first friction tight element (22). When driven by the electric motor, the second friction tight element (23) transmits the torque created on the drive side from the drive element (20) to the driven element (25), while during manual operation of the closure part (2) the transmission element (21) transmit the torque created on the driven side to the first friction element (22) and releases the blockage thereof with respect to the associated first contact surface (28).</p> |
