| 摘要 |
<p>A motor-vehicle door latch has an operating lever and is provided with a child-safety cutout device movable between an enabled position in an on position of the operating lever and a disabled position in an angularly offset off position of the lever. A power actuator for the latch has a housing immediately adjacent the operating lever, an electric motor on the housing, and a rotatable output wheel on the housing adjacent the operating lever. A gear train on the housing connects the motor to the wheel for rotation of the wheel by the motor and a coupling lever fixed on and rotatable with the wheel has a pin that fits in a slot formed on the operating lever so that rotation of the wheel pivots the lever between its positions. A switching wheel or disk in the housing coaxial with and adjacent the output wheel is connected via a lost-motion coupling to the output wheel for rotating the switching wheel by the output wheel only after travel of the output wheel through a predetermined angular play. A switch in the housing operable by the switching wheel on rotation thereof signals the position of the operating lever.</p> |
