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.
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
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.
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.
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.
Smart Images

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Abstract
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