Motor vehicle door lock

Patent metadata

Field	Value
Publication number	US-2016281394-A1
Application number	US-201415024419-A
Country	US
Kind code	A1
Filing date	Sep 9, 2014
Priority date	Sep 27, 2013
Publication date	Sep 29, 2016
Grant date	—

Abstract

The invention relates to a motor vehicle door lock equipped with a locking mechanism, an actuation lever mechanism acting on said locking mechanism, and a locking element. The locking element disables the actuation lever mechanism when accelerating forces of a defined magnitude occur, for example in the event of an accident. According to the invention the locking element is a transmission lever which can be impinged upon by a locking unit and is located between the actuation lever mechanism and the locking mechanism.

First claim

1 . Motor vehicle door latch, with a locking mechanism, furthermore with an activation lever system working on the locking mechanism and with a locking element, which disables the activation lever system with occurring acceleration forces of a specified magnitude, for example in the case of an accident, characterized in that the locking element is formed as a transfer lever impingeable by a bolting unit between the activation lever system and the locking mechanism.

2 . Motor vehicle door latch in accordance with claim 1 , characterized in that the bolting unit works on the transfer lever by means of a coupling lever.

3 . Motor vehicle door latch in accordance with claim 2 , characterized in that the bolting unit mechanically blocks the transfer lever in the “bolted” position.

4 . Motor vehicle door latch in accordance with claim 3 , characterized in that the bolting unit facilitates a freewheel for the transfer lever in the “unbolted” position.

5 . Motor vehicle door latch in accordance with claim 4 , characterized in that the transfer lever assumes the “bolted” position as its basic position.

6 . Motor vehicle door latch in accordance with claim 5 , characterized in that the activation lever system in the case of a crash accomplishes idling vis-à-vis the transfer lever which predominantly remains in its position.

7 . Motor vehicle door latch in accordance with claim 6 , characterized in that the activation lever system during normal activation transfers the transfer lever into the “unbolted” position for opening of the locking mechanism.

8 . Motor vehicle door latch in accordance with claim 7 , characterized in that the activation lever system and the transfer lever are connected to one another by joints.

9 . Motor vehicle door latch in accordance with claim 8 , characterized in that the transfer lever is pre-tensioned vis-à-vis the activation lever system by means of a spring.

10 . Motor vehicle door latch in accordance with claim 9 , characterized in that the center of mass of the transfer lever is arranged in the area of its rotational axis.

11 . Motor vehicle door latch in accordance with claim 2 , characterized in that the bolting unit facilitates a freewheel for the transfer lever in the “unbolted” position.

12 . Motor vehicle door latch in accordance with claim 11 , characterized in that the transfer lever assumes the “bolted” position as its basic position.

13 . Motor vehicle door latch in accordance with claim 1 , characterized in that the transfer lever assumes the “bolted” position as its basic position.

14 . Motor vehicle door latch in accordance with claim 1 , characterized in that the activation lever system in the case of a crash accomplishes idling vis-à-vis the transfer lever which predominantly remains in its position.

15 . Motor vehicle door latch in accordance with claim 1 , characterized in that the activation lever system during normal activation transfers the transfer lever into the “unbolted” position for opening of the locking mechanism.

16 . Motor vehicle door latch in accordance with claim 1 , characterized in that the activation lever system and the transfer lever are connected to one another by joints.

17 . Motor vehicle door latch in accordance with claim 1 , characterized in that the transfer lever is pre-tensioned vis-à-vis the activation lever system by means of a spring.

18 . Motor vehicle door latch in accordance with claim 1 , characterized in that the center of mass of the transfer lever is arranged in the area of its rotational axis.

Assignees

• Kiekert Ag

Inventors

• Bendel Thorsten
• Scholz Michael

Classifications

• E05B77/06 Primary

  by means of inertial forces · CPC title

• E05B81/06

  using rotary motors · CPC title