Motor vehicle lock

Patent metadata

Field	Value
Publication number	US-10287805-B2
Application number	US-201314136759-A
Country	US
Kind code	B2
Filing date	Dec 20, 2013
Priority date	Dec 21, 2012
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A lock, comprising a lock latch and a detent pawl, wherein the lock latch can be brought into open and closed positions, the lock latch in the closed position can be brought into engagement with a striker or the like, wherein the detent pawl can be brought into an engaged position in which said detent pawl fixes the lock latch in the closed position, and wherein the detent pawl can be lifted into a release position wherein the detent pawl releases the lock latch. The detent pawl can be brought into the release position by an actuating arrangement, a crash element is provided, said crash element can be adjusted by the crash-induced deformation of said component into a crash position, and the crash element in the crash position or an element coupled thereto blocks the detent pawl and/or the actuating arrangement or decouples the actuating arrangement from the detent pawl.

First claim

The invention claimed is:

1. A motor vehicle lock for a motor vehicle door arrangement, wherein a lock latch and a detent pawl assigned to the lock latch are provided, wherein the lock latch comprises an open position and a closed position, wherein the lock latch, when in the closed position, is configured to engage with a striker, wherein the detent pawl comprises an engaged position in which the detent pawl fixes the lock latch in the closed position, and wherein the detent pawl comprises a release position in which the detent pawl releases the lock latch from the closed position,
wherein actuation of an actuating arrangement lifts the detent pawl into the release position,
wherein a crash element is provided, wherein a crash-induced deformation of a component of the motor vehicle door arrangement adjusts the crash element into a crash position, in order to avoid a crash-induced lifting of the detent pawl, wherein the crash element, when in the crash position, physically blocks the detent pawl and/or the actuating arrangement,
wherein a crash element mounting is provided for the crash element, and wherein the crash element, during the adjustment thereof into the crash position, is adjusted between the detent pawl and/or the actuating arrangement and a positionally fixed support such that at least some of a force flux of a blocking force can run via the positionally fixed support and outside the crash element mounting, and
wherein the crash element comprises a first end, a second end, and one or more wall elements at least partially located between the first and second ends, wherein the crash element is suspended via the crash element mounting with the first end located at a first suspension point and the second end located at a second suspension point, and wherein the adjustability of the crash element into the crash position originates from a deformability of the one or more wall elements.

2. The motor vehicle lock according to claim 1 , wherein the positionally fixed support is arranged immovably on the motor vehicle lock.

3. The motor vehicle lock according to claim 1 , wherein the deformability of the crash element further originates from at least a local structural weakening of the crash element.

4. The motor vehicle lock according to claim 1 , wherein the crash element is of flexible design at least in a region of the crash element mounting.

5. The motor vehicle lock according to claim 1 , wherein the crash element mounting furthermore fixes the crash element on the motor vehicle lock.

6. The motor vehicle lock according to claim 1 , wherein the crash element mounting has at least one pivot bearing.

7. The motor vehicle lock according to claim 1 , wherein the crash element is designed as a lever which can be pivoted via the crash element mounting.

8. The motor vehicle lock according to claim 1 , wherein the crash element curves away from the crash element mounting at the two suspension points toward a middle region of the crash element.

9. The motor vehicle lock according to claim 8 , wherein the crash element has a blocking lug located between the two suspension points, and wherein when the crash element is in the crash position, the blocking lug physically blocks the detent pawl and/or the actuating arrangement.

10. The motor vehicle lock according to claim 9 , wherein a delimitation is provided for the blocking lug, said delimitation delimiting the movability of the blocking lug in the event of the crash-induced deformation of the component of the motor vehicle door arrangement.

11. The motor vehicle lock according to claim 1 , wherein the crash-induced deformation of the component of the motor vehicle door arrangement causes a force from the component to act on the crash element, a line of dynamic effect of which the force runs past at least one of the first and second suspension points of the crash element.

12. A motor vehicle door arrangement with a motor vehicle door and the motor vehicle lock, according to claim 1 , assigned to the motor vehicle door.

13. The motor vehicle door arrangement according to claim 12 , wherein the motor vehicle door has a door outer skin, wherein the door outer skin is the component of the motor vehicle door arrangement that experiences the crash-induced deformation, and wherein the crash element is arranged with an engagement section in the direct vicinity of the door outer skin.

Assignees

• Brose Schliesssysteme Gmbh

Inventors

• Faust Rene
• Heins Guido
• Leve Dirk
• Liedtke Juergen

Classifications

• E05B77/04 Primary

  Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision · CPC title

• E05C3/12

  with latching action (devices in which the securing part is formed or merely carried by a spring and moves only by distortion of the spring, e.g. snaps, E05C19/06; tilt-plate latches E05C19/007) · CPC title

• Y10T292/0911

  Hooked end · CPC title

• E05B79/20

  using flexible connections, e.g. Bowden cables · CPC title