US 12,152,414 B2Granted

Motor vehicle lock

AssigneeBrose Schliesssyseme GmbH & Co. Kommanditgesellschaft

InventorsRene Faust, Guido Heins, Dirk Leve, Juergen Liedtke

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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.

Claims21

Dependent claims

A motor vehicle lock for a motor vehicle door arrangement, the motor vehicle lock comprising a housing, a lock latch, and a detent pawl assigned to the lock latch, wherein the lock latch and the detent pawl are disposed inside the housing, wherein the lock latch is configured to be brought into an open position and into a closed position, wherein the lock latch when in the closed position, is configured to be brought into engagement with a striker, wherein the detent pawl is configured to be brought into an engaged position, in which said detent pawl fixes the lock latch in the closed position, and wherein the detent pawl is configured to be lifted into a release position, in which said detent pawl releases the lock latch to the open position, wherein the detent pawl is configured to be brought into the release position by an actuating arrangement,

wherein a crash element is carried by the housing of the motor vehicle lock, said crash element, in order to avoid a crash-induced lifting of the detent pawl to the release position by the actuating arrangement, is displaced into a crash position by a crash-induced deformation of a component of the motor vehicle door arrangement, such that when the crash element is in the crash position, the detent pawl cannot be brought into the release position by the actuating arrangement,
wherein the motor vehicle lock comprises a crash element mounting, said crash element mounting being configured as a linear guide in which the crash element is displaceably guided, wherein the whole crash element is displaced along the linear guide, and
wherein a gap is provided between the crash element and the component of the motor vehicle door arrangement subject to the crash-induced deformation when the crash element is in an initial position.

wherein a crash element is carried by the housing of the motor vehicle lock, said crash element, in order to avoid a crash-induced lifting of the detent pawl to the release position by the actuating arrangement, is displaced into a crash position by a crash-induced deformation of a component of the motor vehicle door arrangement, such that when the crash element is in the crash position, the detent pawl cannot be brought into the release position by the actuating arrangement,
wherein a crash element mounting is carried by the housing of the motor vehicle lock, said crash element mounting being configured as a linear guide in which the crash element is displaceably guided, wherein the crash element is prestressed by a spring arrangement.

A motor vehicle door arrangement with a motor vehicle lock, the motor vehicle lock comprising a housing, a lock latch, and a detent pawl assigned to the lock latch, wherein the lock latch and the detent pawl are disposed inside the housing, wherein the lock latch is configured to be brought into an open position and into a closed position, wherein the lock latch when in the closed position, is configured to be brought into engagement with a striker, wherein the detent pawl is configured to be brought into an engaged position, in which said detent pawl fixes the lock latch in the closed position, and wherein the detent pawl is configured to be lifted into a release position, in which said detent pawl releases the lock latch to the open position, wherein the detent pawl is configured to be brought into the release position by an actuating arrangement,

wherein a crash element is carried by the housing of the motor vehicle lock, said crash element, in order to avoid a crash-induced lifting of the detent pawl to the release position by the actuating arrangement, is displaced into a crash position by a crash-induced deformation of a component of the motor vehicle door arrangement, such that when the crash element is in the crash position, the detent pawl cannot be brought into the release position by the actuating arrangement,
wherein the motor vehicle lock comprises a crash element mounting, said crash element mounting being configured as a linear guide in which the crash element is displaceably guided, wherein the whole crash element is displaced along the linear guide,
wherein the crash element mounting is aligned along a geometrical bearing axis, wherein an engagement section of the crash element has an engagement surface which protrudes perpendicular to the geometrical bearing axis,
wherein the whole crash element is displaced by the crash-induced deformation along the geometrical bearing axis in a first direction,
wherein along a second direction opposite to the first direction, the crash element ends with an end, wherein in the second direction along the geometrical bearing axis, a section of the component of the motor vehicle door arrangement subject to the crash-induced deformation is located behind the end, wherein the end and the section of the component of the motor vehicle door arrangement subject to the crash-induced deformation are spaced apart by a distance, such that there is no direct contact between the end and the section at least prior to a crash in which the component of the motor vehicle door arrangement is subjected to the crash-induced deformation.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/270,066Filed 7 Feb 2019 · division
Priority: DE 10 2012 025 053.321 Dec 2012
Published: US 2019/0169882 A16 Jun 2019
Granted: 26 Nov 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

E05B 77/04
For accident situations: preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
E05C 3/12
Fastening devices with bolts moving pivotally or rotatively: with latching action
E05B 79/20
Connections between movable lock parts: using flexible connections, e.g. Bowden cables
Y10T 292/0911
Bolts: hooked end

Family

Application14/136,759Parent of this division · filed 20 Dec 2013
US 2019/0169882 A1Pre-grant publication · published 6 Jun 2019
US 10,287,805 B2Parent of this division
US 2014/0175808 A1Published application
US 12,152,414 B2This patent

From the US filing history. Foreign family members aren’t listed.