Double-Leaf Vehicle Door Pre-Locking Synchronization
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Solution Overview
Problem
Existing double-leaf vehicle door devices struggle to ensure synchronized closing and reliable locking of both door leaves, which can lead to safety issues when the vehicle starts or continues travel without both door leaves being securely locked.
Innovation Solution
The implementation of a double-leaf vehicle door device with a pre-locking function that synchronizes the movement of both door leaves and ensures that the common locking device only locks both door leaves when they are both in their closed positions, preventing asynchronous closing movements that could result in incomplete locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common locking device is used for both door leaves, then device complexity is reduced, but reliability of synchronized locking deteriorates due to asynchronous closing movements
Solution Approach 1:
The patent applies preliminary action by implementing a pre-locking function that temporarily secures the first door leaf in its closed position before the second door leaf completes its closing movement. This preliminary locking action prevents the first door leaf from being pushed open by the second seal during asynchronous closing, ensuring reliable locking without requiring complex synchronized control mechanisms.
2Ease of operation
If door leaves are allowed to close asynchronously, then ease of operation is improved, but safety deteriorates due to potential incomplete locking
Solution Approach 1:
The patent applies preliminary anti-action by providing a pre-locking function that counteracts the potential harmful effect of asynchronous closing before it can occur. The first door leaf is pre-locked in its closed position, preventing any force from the second door leaf's closing movement from pushing it open. This eliminates the safety hazard while allowing the second door leaf to close at its own pace without requiring synchronized control.
Data Source
AI summary
The invention relates to a double-leaf vehicle door device comprising at least the following: two door leaves, each of which can be moved between an open position and a closed position in the form of a respective end position and into any intermediate position between the first open position and the first closed position, wherein a first movement of the first door leaf between the first open position and the first closed position is carried out without mechanically coupling the first door leaf to the second door leaf in contrast to a second movement of the second door leaf between the second open position and the second closed position, and a common locking device is provided which locks the first door leaf in the closed position when the first door leaf is located in the closed position and which locks the second door leaf in the closed position when the second door leaf is in the closed position. A pre-locking function is provided such that of the first door and the second door leaf, the door leaf which first reaches the closed position is held in the closed position at least until the other door leaf has also reached the closed position, and the locking device is additionally designed to only then lock or become capable of locking the first door leaf and the second door leaf.