Actuation device for a motor vehicle door lock

Patent metadata

Field	Value
Publication number	US-9637953-B2
Application number	US-201214351769-A
Country	US
Kind code	B2
Filing date	Oct 5, 2012
Priority date	Oct 12, 2011
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

The invention relates to an actuation device for a motor vehicle door lock ( 1 ), comprising a handle ( 7 ), and a locking lever ( 10 ) which renders the handle ( 7 ) inactive when accelerating forces of a predetermined magnitude occur, for example, in the event of an accident. In the normal operation, the locking lever ( 10 ) is displaced when impinged upon by the handle ( 7 ) and the handle ( 7 ) is simply rendered inactive in the locked operation.

First claim

The invention claimed is:

1. An actuation device for a motor vehicle door lock, comprising a handle, and a locking lever, which renders the handle ineffective in a locked operation in response to accelerating forces of a predetermined magnitude that occur in the event of an accident, wherein, in a normal operation, the locking lever is displaced when impinged upon by the handle, and the handle is rendered ineffective in the locked operation;
wherein the locking lever has an axis of rotation about which the locking lever rotates during the normal operation, and the locking lever further contains a stop arm interacting with the handle during the locked operation and an inertia arm containing a mass of inertia, and the stop arm and the inertia arm extend in different directions directly from the axis of rotation non-linearly relative to each other;
and the locking lever is not displaced in response to the accelerating forces that occur in the event of an accident;
wherein the locking lever contains a coupling arm connected to the handle, and the coupling arm is connected to the handle by means of a spring.

2. The actuation device according to claim 1 , wherein the locking lever blocks the handle in the locked operation, thereby rendering the handle ineffective.

3. The actuation device according to claim 1 , wherein the mass of inertia is connected to an end of the inertia arm.

4. The actuation device according to claim 1 , wherein the stop arm has an L-shaped end and the L-shaped end engages directly with a projection on the handle.

5. The actuation device according to claim 1 , wherein the handle and the locking lever are permanently elastically coupled.

6. The actuation device according to claim 1 , wherein the spring contains a spring constant adapted to inertia forces generated by the handle in response to the accelerating forces in the event of the accident.

7. The actuation device according to claim 1 , wherein the locking lever contains a resetting means.

8. The actuation device according to claim 7 , wherein the resetting means is designed as a return spring.

9. The actuation device according to claim 7 , wherein the resetting means abuts the inertia arm.

10. An actuation device for a motor vehicle door lock, comprising a handle, and a locking lever, which renders the handle ineffective in a locked operation in response to accelerating forces of a predetermined magnitude that occur in the event of an accident, wherein, in a normal operation, the locking lever is displaced when impinged upon by the handle, and the handle is rendered ineffective in the locked operation;
wherein the locking lever has an axis of rotation about which the locking lever rotates during the normal operation, and the locking lever further contains a stop arm interacting with the handle during the locked operation and an inertia arm containing a mass of inertia, and the stop arm and the inertia arm extend in different directions directly from the axis of rotation non-linearly relative to each other;
the locking lever is not displaced in response to the accelerating forces that occur in the event of an accident; and
wherein a stop and a return spring are provided for the locking lever, and the mass of inertia is biased against the stop by the return spring.

11. The actuation device according to claim 10 , wherein the stop is designed as an inertia stop and restricts the deflection of the locking lever caused by the accelerating forces.

Assignees

• Kiekert Ag

Inventors

• Bendel Thorsten
• Toepfer Claus

Classifications

• Y10T292/57

  Operators with knobs or handles · CPC title

• E05B77/06 Primary

  by means of inertial forces · CPC title

• E05B85/10

  Handles · CPC title