Side Door Lock Bearing-Point Integration for Crash Load Stability
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Solution Overview
Problem
Existing motor vehicle locks face increased challenges due to higher vehicle weights, requiring improved stability and functionality under extreme conditions while maintaining manufacturing tolerances with a minimal component count.
Innovation Solution
A motor vehicle lock design that integrates a bearing point for the locking mechanism, which serves both as a fastening means and a component for the lock case, reducing the number of components and stabilizing the fastening point, allowing precise alignment and tolerance management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple separate components are used for fastening and bearing functions, then the locking system can be assembled with standard components, but the number of components increases and assembly complexity increases
Solution Approach 1:
The patent combines the fastening function and bearing function into a single integrated component called a 'bearing point'. This bearing point is formed as an integral part of the lock case, eliminating the need for separate fastening elements and bearing components. The unified structure reduces the total number of components while maintaining both fastening and bearing functionalities.
Solution Approach 2:
The bearing point serves multiple functions simultaneously: it acts as a fastening element to secure the lock to the vehicle body, provides a bearing surface for the rotary latch, and contributes to the structural stability of the lock case. This multi-functional design reduces component count and simplifies the overall locking system.
2Reliability
If a robust fastening system is used to meet increased safety requirements, then crash safety is improved, but the number of components and assembly complexity increases
Solution Approach 1:
The fastening function is integrated directly into the lock case structure through the bearing point, which is formed as an integral part of the lock case. This eliminates the need for separate fastening components and reduces assembly steps while providing robust crash safety through the unified structural design.
Solution Approach 2:
The lock case is designed with an extended portion that forms the bearing point, creating a segmented structure where the bearing point is an integral extension of the lock case. This segmentation allows the bearing point to be optimized for both fastening and bearing functions while maintaining structural integrity for crash safety.
3Stability of the object's composition
If additional fastening elements are added to stabilize the lock case, then the locking system stability is improved, but the device complexity increases
Solution Approach 1:
The bearing point is formed as an integral part of the lock case structure, merging the fastening and bearing functions into a single unified component. This eliminates the need for separate stabilization elements and reduces the number of components while maintaining lock case stability.
Solution Approach 2:
The bearing point serves multiple functions including fastening the lock to the vehicle body, providing a stable bearing surface for the rotary latch, and contributing to the overall structural stability of the lock case. This multi-functional design reduces component count while enhancing stability.
Data Source
AI summary
A motor vehicle lock, and in particular a motor vehicle side door lock, having a locking mechanism with a rotary latch and at least one pawl, wherein a rotary movement of the rotary latch can be blocked in at least one latching position by means of the pawl; a lock case; and a bearing point, accommodated in the lock case, for at least one locking mechanism part, wherein the motor vehicle lock can be mounted on the motor vehicle by means of the lock case, and wherein the motor vehicle lock can be mounted on the motor vehicle by means of at least one bearing point.