Motor vehicle door lock

The motor vehicle door latch employs a curved stop surface and pivot pin mechanism for a simple, efficient assembly and rapid state transitions, addressing assembly complexity and ensuring functional safety in door latch operations.

DE102014115489B4Active Publication Date: 2025-07-31KIEKERT AG
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Patent Information

Application Number
DE102014115489
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2014-10-24
Publication Date
2025-07-31
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

Existing motor vehicle door latches are structurally complex and time-consuming to assemble, which is not economically viable in today's competitive automobile supplier market.

Method used

A motor vehicle door latch design featuring a coupling element with a curved stop surface and a pivot pin mechanism that allows for a simple kinematic connection between the coupling element and the release lever, enabling quick and reliable transitions between locked and unlocked states without the need for additional guides or bearings, and a detachable connection to the actuating lever.

Benefits of technology

The design achieves a compact, easily assembled, and functionally safe door latch with rapid state changes, minimizing misoperations and optimizing space usage, particularly suitable for central locking systems and keyless entry.

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Abstract

Motor vehicle door lock, with a locking mechanism, a release lever (1) acting on the locking mechanism, a coupling element (3) and at least one actuating lever (5), wherein the coupling element (3) is rotatably mounted on the actuating lever (5) and mechanically couples / decouples the actuating lever (5) selectively with the release lever (1), characterized in that the coupling element (3) is equipped with a curved stop surface (8) for the release lever (1) resting against it in the "engaged" state, while the stop surface (8) is moved past the release lever (1) in the "uncoupled" state of the coupling element (3).
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Claims

[1] Motor vehicle door lock, with a locking mechanism, a release lever (1) acting on the locking mechanism, a coupling element (3) and at least one actuating lever (5), wherein the coupling element (3) is rotatably mounted on the actuating lever (5) and mechanically couples / decouples the actuating lever (5) selectively with the release lever (1), characterized by that the coupling element (3) is equipped with a curved stop surface (8) for the release lever (1) which rests against it in the "engaged" state, while the stop surface (8) is moved past the release lever (1) in the "uncoupled" state of the coupling element (3). [2] Motor vehicle door lock according to claim 1, characterized by that the coupling element (3) is detachably connected to the operating lever (5). [3] Motor vehicle door lock according to claim 1 or 2, characterized bythat the coupling element (3) engages with its pivot pin (11) in an open pin receptacle (12) of the actuating lever (5). [4] Motor vehicle door lock according to claim 3, characterized by that the pivot pin (11) engages securely in the pin receptacle (12). [5] Motor vehicle door lock according to claim 3 or 4, characterized by that the pivot pin (11) is equipped with at least one recess (13) for captively engaging in a guide (14) arranged upstream of the pin receptacle (12). [6] Motor vehicle door lock according to one of claims 1 to 5, characterized by that the coupling element (3) is formed in two parts with a bearing element (3a) and a stop element (3b). [7] Motor vehicle door lock according to claim 6, characterized by that the stop element (3b) is designed as a stop disc (3b). [8] Motor vehicle door lock according to claim 7, characterized bythat the bearing element (3a) is connected to one end of the stop disc (3b). [9] Motor vehicle door lock according to one of claims 7 to 8, characterized by that the stop disc (3b) is designed as a circular segment disc, in particular a quarter-circular segment disc. [10] Motor vehicle door lock according to one of claims 6 to 9, characterized by that the bearing element (3a) is connected to a radially outer corner point (15) of the stop disc (3b).

Citation Information

Patent Citations

  • vehicle lock with anti-theft device

    DE10116621B4