Asymmetrical Latching Contour for Motor Vehicle Lock Positioning
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Solution Overview
Problem
Motor vehicle latches with coupling levers risk incorrect operation of anti-theft locks and central locking systems, leading to faulty interactions and user access issues.
Innovation Solution
A motor vehicle latch with an asymmetrical latching contour and spring mechanism, allowing the coupling lever to assume various positions, ensuring correct positioning and preventing incorrect operation by providing different positioning paths and adjustment angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a coupling lever is used to interact with the drive element and central locking mechanism, then the locking system can achieve multiple positions and functions, but the risk of incorrect operation increases
Solution Approach 1:
The patent applies asymmetry by providing at least one asymmetrical position receiving point in the latching contour. This asymmetrical design ensures that the coupling lever can only be positioned correctly in specific predetermined positions, preventing incorrect operation while maintaining multiple functional positions for the locking system.
Solution Approach 2:
The spring mechanism acts as an intermediary between the coupling lever and the latching contour. It provides controlled movement and ensures that the coupling lever is guided into the correct asymmetrical position receiving points, thereby preventing incorrect positioning while enabling multiple valid positions.
2Adaptability or versatility
If the coupling lever is designed to assume various positions, then the locking system gains operational flexibility, but the positioning precision may be compromised
Solution Approach 1:
The asymmetrical position receiving points provide distinct geometric features that guide the coupling lever into precise predetermined positions. Each asymmetrical receiving point has a unique shape that only accommodates the coupling lever in the correct orientation, ensuring high positioning precision while allowing multiple valid positions.
Solution Approach 2:
The spring mechanism serves as a mediator that controls the positioning process, guiding the coupling lever into the asymmetrical position receiving points with precise control. This ensures that the coupling lever achieves accurate positioning in each valid position while maintaining operational flexibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The asymmetrical design ensures accurate positioning of the coupling lever, reducing the risk of incorrect operation and enhancing the reliability of the anti-theft and central locking systems, preventing unintended locking or unlocking of vehicle doors.
Implementation Method 1
a spring mechanism (20) being provided, the spring mechanism cooperating with the latching contour (19) such that the coupling lever (17) can be positioned in the different positions
Data Source
AI summary
A motor vehicle lock, more particularly for a vehicle rear door, having a lock cover and a locking mechanism consisting of substantially rotary latches and at least one pawl, furthermore having at least one coupling lever, and at least one electric drive, wherein the coupling lever can take up different positions and interacts with a drive element of the drive and a central locking mechanism, wherein, to take up its positions, the coupling lever is connected to the drive element. The drive element and/or lock cover have/has a latching contour having at least two position holders wherein at least one position holder is designed asymmetrically and a spring mechanism is provided, wherein the spring mechanism cooperates with the latching contour, as a result of which the coupling lever can be positioned in the different positions.