Kiekert Ag

Kiekert Gmbh & Co. Kg

Rainer Kipka

Horst Brackmann

Armin Handke

Klaus Feist

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 displacing the antitheft lever and pivoting the coupling lever via the antitheft lever into the decoupling position so that, when the locking lever is in the unlocked position, movement of the coupling lever into the decoupling position loads the spring.

Motor-vehicle door latch with antitheft protection

A motor-vehicle door latch has a pivotal latching fork, a release pawl engageable with the fork and displaceable between latched and unlatched positions, and a release lever engageable with the pawl for displacing same between its positions and formed with an elongated slot. An outside actuating lever is provided with an entrainment nose aligned with an end of the release-lever slot. Separate inside and outside locking levers are coupled via a spring to a main locking lever displaceable by the inside and outside levers between a locked and an unlocked position. A link lever pivoted on the main locking lever carries a coupling pin projecting through the slot and engageable with the entrainment nose in the unlocked position of the main locking lever and unengageable with the entrainment nose in the locked position of the main locking lever. The link lever is slidably mounted on the main locking lever and is biased toward the entrainment nose so that on movement of the main locking lever from the locked to the unlocked position with the actuating lever actuated the coupling pin engages the nose and the link lever slides against spring force on the main locking lever. An antitheft lever displaceable between on and off positions is operatively engageable in the on position with the main locking lever to retain the main locking lever in the locked position and prevent it from moving into the unlocked position.

Motor-vehicle door latch

A motor-vehicle door latch has a latch fork pivotal on a housing between a holding position in which it is adapted to retain a door of the vehicle closed and a releasing position in which it allows the vehicle door to be opened. A latch pawl is pivotal on the housing between a retaining position engaging the fork and retaining it in the holding position and a freeing position out of engagement with the fork and permitting it to move into the releasing position. A door handle and lock mechanism in the housing are connected to the pawl for moving the pawl into the freeing position on actuation of the handle. A locking lever connected to the mechanism is displaceable between a locked position in which it disconnects the mechanism from the pawl and prevents the mechanism from moving the pawl into the freeing position and an unlocked position in which it permits the mechanism to move the pawl into the freeing position. A blocking element has a part engageable directly with the pawl and is pivotal in the housing between a blocking position preventing movement of the pawl into the freeing position and an unblocking position permitting the pawl to move between its positions. A link between the blocking element and the locking lever displaces the blocking element into the blocking position on displacement of the locking lever into the locked position.

Growing community of inventors

Essen, Germany

Rainer Kipka