Vehicle Door Handle Assembly Anti-Theft Slide Mechanism
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Solution Overview
Problem
The existing door handle arrangements for motor vehicles are complex, with numerous components and insufficient security against break-ins, as they require a gear to transmit key rotation and can be vulnerable to forcibly removing the lock cylinder.
Innovation Solution
A simplified door handle arrangement where the lock cylinder housing is inserted into a receptacle along two mutually inclined spatial directions, featuring a slide-in link and a locking element to prevent removal by a single force, enhancing security without increasing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lock cylinder is arranged inclined to the vehicle wall, then the handle lifting requirement is reduced, but a gear mechanism is required to transmit key rotation increasing structural complexity
Solution Approach 1:
The patent removes the gear mechanism from the door handle assembly, extracting the problematic component that increased structural complexity. The lock cylinder is directly mounted on the bearing bracket without requiring any transmission gears, while still maintaining the inclined arrangement for easy handle operation.
2Reliability
If the lock cylinder housing is securely mounted to the bearing bracket, then burglar resistance is improved, but assembly complexity increases
Solution Approach 1:
The patent combines the lock cylinder housing mounting directly to the bearing bracket using a simplified attachment structure. The bearing bracket integrates the mounting function, eliminating the need for separate complex securing mechanisms while maintaining secure attachment to prevent break-in attempts.
3Ease of manufacture
If the lock cylinder housing can be easily removed for assembly, then ease of manufacture is improved, but security against break-in decreases
Solution Approach 1:
The patent segments the door handle assembly into modular components (handle, lock cylinder housing, bearing bracket) that can be easily assembled and disassembled during manufacturing. The bearing bracket serves as the central mounting component, allowing straightforward attachment and removal of the lock cylinder housing while maintaining secure installation when assembled.
Data Source
Figure 1~3
Figure 4~5
Figure 6~8
AI summary
The door handle assembly (1) comprises a lock cylinder (5), and a bearing bracket (3) for receiving the door handle components, which is coupled with a lock cylinder housing (4). The bearing bracket has a receptacle for accommodating the housing. The outer contour of housing is coordinated on the inner contour of receptacle so that at least one region of contact between the housing and receptacle forms a slide-gate which enables movement of housing during insertion into receptacle along a spatial direction which is oblique to other spatial direction.