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Central vehicle door-lock system

  • US 4,342,209 A
  • Filed: 03/24/1980
  • Issued: 08/03/1982
  • Est. Priority Date: 03/24/1979
  • Status: Expired due to Term
First Claim
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1. A central vehicle door-lock system comprising:

  • at least two door latches each including a detent movable between a lock position securing the respective door to the respective doorpost and an unlock position permitting separation of the respective door from the respective doorpost, and mechanism for displacing said detent between said lock and unlock positions;

    respective servoactuators each includingan actuator operatively engaged via said mechanism with the respective detent and displaceable between respective lock and unlock positions,an operator engageable with said actuator and displaceable between respective lock, unlock, and antitheft positions,a servomotor connected to said operator for displacing same between the respective unlock, lock, and antitheft positions,link means connected between said detents, actuators, and operators for joint displacement of same between the respective lock and unlock positions, anda lock pawl displaceable by the respective operator only in the lock position of the respective actuator and in the antitheft position of the respective operator from a freeing position permitting displacement of the respective actuator from the respective lock to the respective unlock position into a blocking position preventing displacement of the respective actuator from the respective lock to the respective unlock position; and

    control means connected to said servomotors and including a switch displaceable between a respective unlock position for displacing said operators into the respective unlock positions, a respective lock position for displacing said operators into the respective lock positions, and a respective antitheft position for displacing said operators into the respective antitheft positions, whereby when said switch is in said antitheft position said mechanisms cannot displace said detents into the respective unlock positions.

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