Motor vehicle lock

Patent metadata

Field	Value
Publication number	US-2017114576-A1
Application number	US-201515311013-A
Country	US
Kind code	A1
Filing date	May 8, 2015
Priority date	May 12, 2014
Publication date	Apr 27, 2017
Grant date	—

Abstract

The aim of the invention is to provide a lock for a motor vehicle, whereby the accidental opening of said lock is prevented. To achieve this aim, a lock comprises a locking mechanism with a rotary latch and a locking pawl for arresting the rotary latch in a latch position. In order to open the lock with minimum effort, an electric drive ( 1 ) is provided by means of which drive the locking pawl can be moved directly or indirectly out of its locking position. The lock is further provided with a movable blocking pawl ( 2 ), which can impede the electric drive ( 1 ) from opening the lock. For the locking mechanism to be electrically opened, the blocking pawl ( 2 ) needs to be moved out of its blocking position and the electric drive ( 1 ) needs be to actuated.

First claim

1 . A latch with a locking mechanism comprising a catch and a pawl for ratcheting of the catch in a ratchet position, an electrical drive, with which the pawl can be moved out of its ratchet position, comprising a movable blocking pawl which in a blocking position is capable of preventing the electrical drive from opening the latch.

2 . The latch according to claim 1 , wherein the blocking pawl is not subjected to any contact pressure when in its blocking position.

3 . The latch according to claim 1 , wherein the electrical drive is capable of moving a drive element, in particular a wheel and/or a disk, for opening of the locking mechanism and the blocking pawl reaches into a recess of the drive element in its blocking position and thus blocks or limits movement of the drive element in such a way that the locking mechanism cannot be opened by the electrical drive.

4 . The latch according to claim 3 , wherein the drive element is part of a gearbox.

5 . The latch according to claim 1 , wherein a stop for the blocking pawl is present which is capable of restricting the movement of the blocking pawl in its blocking position.

6 . The latch according to claim 5 , wherein the stop is designed as an attenuating element.

7 . The latch according to claim 6 , wherein the surface of the stop is made of plastic, in particular of an elastomer.

8 . The latch according to claim 5 , wherein the stop is attached to the electrical drive.

9 . The latch according to claim 1 , wherein a sensor, in particular a microswitch, is present, which can be activated by the blocking pawl.

10 . The latch according to claim 1 , wherein a triggering lever can be pivoted by the electrical drive.

Assignees

• Kiekert Ag

Inventors

• Fuchs Carsten

Classifications

• E05B81/06

  using rotary motors · CPC title

• E05B81/64

  Monitoring or sensing, e.g. by using switches or sensors · CPC title

• E05B81/14 Primary

  operating on bolt detents, e.g. for unlatching the bolt · CPC title

• E05B77/40 Primary

  Lock elements covered by silencing layers, e.g. coatings · CPC title

• E05B81/34

  of geared transmissions · CPC title