Vehicle Door Locking Mechanism Blocking Key-Based Outside Opening
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Solution Overview
Problem
Existing vehicle door locking systems fail to prevent unauthorized opening from outside, even with authorized keys, and can inadvertently lock users outside if the key button is not unlocked, posing privacy and security risks.
Innovation Solution
A vehicle door locking mechanism integrated with the latching mechanism, featuring a stopper that blocks the control paddle from rotation when the inner handle is actuated, ensuring the door cannot be opened from outside, even with an authorized key, and automatically transitions to an unlockable state when the user exits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a key button is used to block the latching system from inside, then the door cannot be opened from inside by rotation of inner or outer handles, but the risk of invasion remains because someone with an authorized key can unblock the latching system from outside
Solution Approach 1:
The patent merges the key button function with the inner handle mechanism by integrating a stopper that is actuated by the inner handle rotation. This combination ensures that when the inner handle is rotated to open the door, the stopper automatically moves to allow key insertion and unlock the latching system from outside, eliminating the privacy protection while maintaining ease of operation.
Solution Approach 2:
The stopper is designed to automatically perform the preliminary action of moving to the unlocked position when the inner handle is rotated. This preliminary action ensures that the latching system is prepared for external unlocking before the door is actually opened, preventing the scenario where an authorized key cannot unlock the door from outside.
2Reliability
If a key button is used to prevent opening of the door, then unauthorized opening is prevented, but the user may be locked outside the vehicle with no way to enter if the key button is not unlocked
Solution Approach 1:
The inner handle mechanism provides self-service by automatically actuating the stopper to the unlocked position when rotated. This eliminates the need for the user to manually operate the key button separately, ensuring that the door can always be opened from inside by simply rotating the inner handle, while maintaining security protection when the stopper is in the locked position.
Solution Approach 2:
The mechanism provides feedback through the stopper's position, which changes based on the inner handle rotation. When the inner handle is rotated, the stopper moves to indicate the unlocked state, providing visual or tactile feedback to the user that the door can now be opened from outside, ensuring ease of operation while maintaining security.
3Reliability
If a separate night lock system is installed on the door panel, then the door can be blocked from outside, but the risk of violation remains if not installed correctly and additional interfaces are required
Solution Approach 1:
The patent merges the night lock function with the existing inner handle mechanism and latching system. The stopper is integrated into the handle assembly, eliminating the need for separate installation interfaces and reducing device complexity while maintaining privacy protection through the same mechanical integration.
Solution Approach 2:
The inner handle mechanism serves multiple functions: it acts as both the door opening mechanism from inside and the actuator for the stopper that provides night lock functionality. This multi-functionality eliminates the need for separate night lock installation interfaces, reducing complexity while maintaining security protection.
Data Source
AI summary
Vehicle door locking equipment includes a door latch, a lock cylinder for locking or unlocking a vehicle door by rotating a control paddle linked to the door latch, an inner handle linked to the door latch to be rotated to allow an opening of the door from inside a passenger cabin, a stopper knob located inside the passenger cabin, and a stopper to be displaced between a first position allowing rotation of the control paddle and a second position allowing rotation of the control paddle upon actuation of the stopper knob. The inner handle is arranged to displace the stopper in the first position when the inner handle is rotated to open the door.