Motor-vehicle door latch
First Claim
1. A motor-vehicle door latch comprising:
- a pivotal latching fork;
a release pawl engageable with the fork and displaceable between a latched position retaining the fork in a latched position engaged around a bolt and securing a motor-vehicle door closed and an unlatched position in which the fork can release the bolt and allow the door to open;
a release lever engageable with the pawl for displacing same between its positions and formed with an elongated slot;
an outside actuating lever provided with an entrainment nose aligned with an end of the release-lever slot;
separate inside and outside locking levers;
a main locking lever coupled to the inside and outside locking levers and displaceable thereby between a locked and an unlocked position;
a link lever pivoted on the main locking lever and carrying 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;
biasing means slidably mounting the link lever on the main locking lever for urging the link lever toward the entrainment nose, whereby 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; and
an antitheft lever displaceable between on and off positions and 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.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
62 Citations
6 Claims
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1. A motor-vehicle door latch comprising:
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a pivotal latching fork; a release pawl engageable with the fork and displaceable between a latched position retaining the fork in a latched position engaged around a bolt and securing a motor-vehicle door closed and an unlatched position in which the fork can release the bolt and allow the door to open; a release lever engageable with the pawl for displacing same between its positions and formed with an elongated slot; an outside actuating lever provided with an entrainment nose aligned with an end of the release-lever slot; separate inside and outside locking levers; a main locking lever coupled to the inside and outside locking levers and displaceable thereby between a locked and an unlocked position; a link lever pivoted on the main locking lever and carrying 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; biasing means slidably mounting the link lever on the main locking lever for urging the link lever toward the entrainment nose, whereby 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; and an antitheft lever displaceable between on and off positions and 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. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification