Vehicle Sliding Door Locking Device with Dynamic Latch Release
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Solution Overview
Problem
Conventional sliding door locking devices for vehicles fail to stably lock and smoothly release sliding doors, leading to instability and hindered movement.
Innovation Solution
A sliding door locking device featuring a rail with a latch system, where a swing arm rotates to release the latch from a locking groove, allowing the sliding door to be stably locked and automatically unlocked for smooth movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional sliding door locking device is used, then the sliding door can be locked to the vehicle body, but the locking is unstable and the door cannot be smoothly released
Solution Approach 1:
The latch is designed to rotate between locked and unlocked positions dynamically. The swing arm rotates to automatically release the latch when the door opens, making the locking system adaptive and responsive to door movement rather than static
Solution Approach 2:
The latch automatically releases when the swing arm rotates during door opening. The system uses the door's own movement to trigger the release mechanism, eliminating the need for separate manual unlocking operations
2Reliability
If the latch is designed to remain engaged, then the door remains securely locked, but the door cannot be opened when needed
Solution Approach 1:
The latch transitions from a static engaged state to a dynamic system that automatically disengages when the swing arm rotates during door opening, providing both secure locking and automatic release capability
Solution Approach 2:
The swing arm is pre-positioned to engage the latch during door closing, and automatically applies releasing force during door opening, preventing the latch from remaining engaged when the door needs to open
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device ensures the sliding door is securely locked to the vehicle body and automatically releases when opened, enabling smooth sliding movement without hindrance.
Implementation Method 1
a return spring providing an elastic restoring force to the swing arm
Data Source
AI summary
A sliding door locking device of a vehicle may include a rail mounted to a vehicle body along a length direction thereof, a slider inserted in and slidably coupled to the rail, a connection structure of which one end is relatively rotatably coupled to the slider and another end is coupled to a door of the vehicle to slidably support the door of the vehicle, a latch rotatably mounted to the slider to lock the connection structure to the rail or release the connection structure from the rail, and a locking groove formed in the rail and to which the latch is detachable therefrom.