Engine Hood Lock Safety Catch With Dual-Bolt Load Support
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Solution Overview
Problem
Existing lock arrangements for vehicle components like engine hoods and tailgates are not sufficiently stable against mechanical stress, particularly when subjected to forces such as tensile forces.
Innovation Solution
A lock arrangement with a safety catch mounted on a first bearing bolt and a pawl on a second bearing bolt, where the safety catch's pivoting movement is guided by the second bearing bolt, distributing forces through two bearing points to enhance stability, and includes features like end stops and spring-assisted movements to secure the lock in position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single bearing point is used for mounting the safety catch, then the device complexity is reduced, but the stability against mechanical stress deteriorates
Solution Approach 1:
The bearing function is segmented into two separate bearing points (first bearing bolt and second bearing bolt) instead of using a single bearing point. This segmentation distributes the mechanical stress across multiple locations, improving the stability and load-bearing capacity of the safety catch mechanism while maintaining relatively simple individual components.
2Stability of the object's composition
If the safety catch is rigidly fixed, then the stability is improved, but the ease of operation deteriorates
Solution Approach 1:
The safety catch is designed with rotational freedom about a first axis, transforming it from a rigidly fixed component to a dynamically adjustable one. This allows the safety catch to pivot between a closed position (providing stability) and an open position (enabling easy operation). The pawl mechanism further controls this dynamic behavior by allowing controlled movement while preventing unintended opening.
Data Source
AI summary
A lock arrangement may have a claw for a locking element, a safety catch for the locking element, and a pawl which interacts with the safety catch. The safety catch may be mounted on a first bearing bolt so as to be rotatable about a first axis of rotation. The pawl may be mounted on a second bearing bolt so as to be rotatable about a second axis of rotation. The safety catch may have a base body having a recess which receives the second bearing bolt such that the second bearing bolt is arranged in the recess. When the safety catch is pivoted, the recess is movable or is moved relative to the second bearing bolt.