Vehicle Door Lock Linkage for Independent Inner Opening Stroke
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle door lock mechanisms often suffer from interdependence between inner and outer opening assemblies, leading to interference and compromised user experience.
Innovation Solution
The door lock apparatus separates inner and outer opening movements by employing a cooperating rocker and rocker arm system, allowing independent operation of the inner and outer opening strokes, ensuring that the inner opening stroke does not affect the outer opening stroke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inner opening assembly and outer opening assembly are linked through the same part, then the structure is simplified, but the outer opening assembly is affected when the inner opening assembly is driven, causing the outer opening assembly to jump
Solution Approach 1:
The patent divides the opening mechanism into two independent pathways: the inner opening assembly (with inner door handle and inner opening rocker) and the outer opening assembly (with outer door handle and outer opening rocker). Each assembly has its own dedicated rocker and linkage to the locking arm, preventing interference between inner and outer opening operations. This segmentation resolves the contradiction by maintaining structural simplicity through modular design while ensuring the stability and reliability of each assembly's operation.
2Device complexity
If the inner opening assembly and outer opening assembly share the same linkage mechanism, then the device complexity is reduced, but the inner opening stroke and outer opening stroke cannot be separated
Solution Approach 1:
The patent implements separate linkage mechanisms for inner and outer opening operations. The inner opening assembly includes an inner opening rocker that directly connects to the locking arm, while the outer opening assembly includes an outer opening rocker that also connects to the locking arm through a different pathway. This segmentation allows the inner and outer opening strokes to be independent, resolving the contradiction between reduced device complexity and operational independence.
Solution Approach 2:
The locking arm serves as an intermediary element that receives input from both the inner opening rocker and outer opening rocker independently. This intermediary design allows each opening assembly to operate independently without interfering with the other, while still achieving the common function of unlocking the door. The intermediary approach maintains ease of operation through independent strokes while managing device complexity through a shared but decoupled linkage architecture.
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
Provided is a vehicle. The vehicle includes a vehicle door and a door lock apparatus. The door lock apparatus includes a lock tongue, a locking arm, a cooperating rocker, a cooperating rocker arm and an inner opening assembly, where the locking arm is configured to be engaged with the lock tongue. The cooperating rocker is configured to drive the cooperating rocker arm to rotate when the cooperating rocker moves. The inner opening assembly is connected to the cooperating rocker arm, and when the inner opening assembly is unlocked, the inner opening assembly drives the cooperating rocker arm to rotate, and the cooperating rocker arm drives the locking arm to rotate, so that the locking arm and the lock tongue are converted from an engaged state to a separated state, and the cooperating rocker does not move.