Motor-vehicle door latch with antitheft protection

US5961163A · kind A · utility

Assignee

• Kiekert AG · DE

Inventors

• Horst Brackmann · Velbert, DE
• Klaus Feist · Wuppertal, DE
• Armin Handke · Duisburg, DE
• Rainer Kipka · Essen, DE

Key dates

• Filing date: Jul 11, 1997
• Grant date: Oct 5, 1999
• Expiry date: Jul 11, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T292/1082
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A motor-vehicle door latch has a latching fork and a release pawl engageable with the fork and pivotal between a latched position retaining the fork in a latched position engaged around a bolt and an unlatched position in which the fork can release the bolt. A coupling lever is pivotal between a coupling position connecting an actuating lever to the release pawl for actuation of the release pawl by the actuating lever and a decoupling position in which movement of the actuating lever does not move the release pawl. An inside locking lever pivotal between a locked and unlocked position is connected by a coupling to a central-locking lever also pivotal for joint synchronous pivoting thereof. A spring engaged between the locking lever and the coupling lever normally moves the coupling lever into its decoupling position on movement of the locking lever into its locked position. A control pin movable in an orbit is operatively engageable with the central-locking lever to displace the locking lever into the locked position and an antitheft lever on the coupling lever is engageable with the control pin. The control pin is moved in its orbit into an antitheft-on position engaging and displ…