Motor Vehicle Door Lock Integrated Stop Contour

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Solution Overview

Problem

Existing motor vehicle door locks often use separate stops for the electric drive and lock element, which are not of similar design, making production and installation complex and costly.

Innovation Solution

A common stop contour is used for both the lock element and electric drive, with two stops assigned to the lock element and one to the electric drive, allowing for similar design and material selection, and produced as a single, cost-effective component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If separate stops are used for the electric drive and lock element, then each component can be independently designed and positioned, but the production and installation complexity increases and costs rise

Engineering Contradiction:

Improveproduction simplicityVSAvoidnumber of separate stops

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines multiple separate stops into a single integrated stop contour that serves both the electric drive and lock element. This stop contour is formed as one piece, reducing the number of separate components and simplifying both production and installation processes while maintaining the functional independence of each stop.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The stop contour is designed as a multi-functional component that provides stopping functions for multiple different elements (electric drive and lock element) simultaneously. This universal design allows a single component to perform multiple roles, reducing overall part count and complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If separate stops are used for the electric drive and lock element, then each stop can be optimized for its specific function, but the installation process becomes more complex

Engineering Contradiction:

Improveinstallation simplicityVSAvoidnumber of separate stops

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

By merging multiple stops into a single integrated stop contour, the patent reduces the number of installation steps and simplifies the overall installation process. The single piece can be installed in one operation rather than requiring multiple separate installation steps for different stops.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of manufacture

If a common stop contour is used for both lock element and electric drive, then production is simplified and costs reduced, but the design must accommodate multiple functional requirements

Engineering Contradiction:

Improveproduction costVSAvoiddesign flexibility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The stop contour is designed with different local characteristics to accommodate multiple functional requirements. Different sections of the stop contour have different geometries, positions, and properties optimized for their specific functions (electric drive stopping vs. lock element stopping), while remaining part of a single integrated structure.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9777515B2Motor-vehicle door lock

Publication Date: 2017.10.03 KIEKERT AG

AI summary

The invention relates to a motor vehicle door lock comprising a locking mechanism, also at least one locking element (3), an electric drive (5, 6, 7) for the locking mechanism, and at least two stops (20, 21, 22, 27) for the electric drive (5, 6, 7) and/or the locking element (3), wherein one of the stops (20, 21) is associated with the locking element (3) and the other stop (22, 27) is associated with the electric drive (5, 6, 7) and both stops (20, 21, 22, 27) are arranged on a common stop contour (23).