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Vehicle door latch device and method of controlling thereof

  • US 6,109,079 A
  • Filed: 03/30/1998
  • Issued: 08/29/2000
  • Est. Priority Date: 11/30/1993
  • Status: Expired due to Fees
First Claim
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1. An actuator for use with a vehicle door lock, comprising:

  • a reversible motor;

    an output member arranged to be rotated by the motor;

    a first lever arranged to be changed between a locked and an unlocked position by rotation of the output member and a key cylinder of the door;

    a second lever connected to an inside locking button of the door;

    an anti-theft member arranged for movement between an anti-theft position where an unlocking action of the second lever is not transmitted to the first lever, and an anti-theft cancelled position where the second lever and first lever are connected to each other; and

    a changing member for changing each said position of the anti-theft member in response to the rotation of the output member,wherein the first lever is further so arranged that when the first lever is changed to the unlocked position by the key cylinder, the first lever is brought into contact with the changing member and causes the anti-theft member to be returned to the cancelled position,wherein the output member is biased towards a neutral position by the elasticity of a return spring,wherein said actuator further comprises a release lever for causing said antitheft member to be returned to the cancelled position by rotation of said output member without moving said first lever.

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