Power actuator for child-safety motor-vehicle door latch
First Claim
1. In combination with a motor-vehicle door latch having an operating lever and 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, an inside door handle of the latch being disabled in the enabled position of the device, a power actuator comprising:
- a housing immediately adjacent the operating lever;
an electric motor on the housing;
a rotatable output wheel on the housing adjacent the operating lever;
a gear train on the housing connecting the motor to the wheel for rotation of the wheel by the motor;
a coupling lever fixed on and rotatable with the wheel and having a pin, the operating lever being formed with a slot receiving the pin, whereby rotation of the wheel pivots the lever between its positions;
a switching wheel in the housing coaxial with and adjacent the output wheel;
a lost-motion coupling between the output wheel and the switching wheel for rotating the switching wheel by means of the output wheel only after travel of the output wheel through a predetermined angular play; and
at least one switch in the housing operable by the switching wheel on rotation thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
17 Citations
3 Claims
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1. In combination with a motor-vehicle door latch having an operating lever and 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, an inside door handle of the latch being disabled in the enabled position of the device, a power actuator comprising:
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a housing immediately adjacent the operating lever; an electric motor on the housing; a rotatable output wheel on the housing adjacent the operating lever; a gear train on the housing connecting the motor to the wheel for rotation of the wheel by the motor; a coupling lever fixed on and rotatable with the wheel and having a pin, the operating lever being formed with a slot receiving the pin, whereby rotation of the wheel pivots the lever between its positions; a switching wheel in the housing coaxial with and adjacent the output wheel; a lost-motion coupling between the output wheel and the switching wheel for rotating the switching wheel by means of the output wheel only after travel of the output wheel through a predetermined angular play; and at least one switch in the housing operable by the switching wheel on rotation thereof. - View Dependent Claims (2, 3)
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Specification