Sliding Door Lock Cap Assembly for Emergency Key Access
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Solution Overview
Problem
Existing door outside handle assemblies face issues with the door lock cap being lost or damaged when using an emergency key, as it is mechanically separated and may deform, leading to a loss of fastening force.
Innovation Solution
A sliding type door lock cap assembly where the door lock cap is slidable and secured through a locking hook and slot mechanism, preventing separation and deformation, and featuring a cap button and button spring for elastic support and constraint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door lock cap is mechanically separated from the grip cover using a hook mechanism, then the door lock cap can be removed to operate the door lock with an emergency key, but the door lock cap may be lost or damaged during removal and deformation occurs leading to loss of fastening force
Solution Approach 1:
The door lock cap is divided into multiple segments that can rotate relative to each other. The cap body includes a first cap segment and a second cap segment that can rotate around a rotation axis. This segmentation allows the cap to be opened for emergency key access while maintaining connection through the rotation mechanism, preventing loss or damage.
Solution Approach 2:
The door lock cap transitions from a static fixed connection to a dynamic rotating connection. The hook mechanism engages with a slot to allow rotation, enabling the cap to move between closed and open positions while maintaining attachment. This dynamic mechanism prevents the cap from being completely separated or lost during operation.
2Ease of operation
If the door lock cap is fixed to the grip cover using a hook mechanism, then the door lock cap can be removed for emergency key operation, but the door lock cap deforms during removal and loses fastening force
Solution Approach 1:
The door lock cap uses a rotating mechanism instead of complete separation. The hook engages with a slot to guide rotation, allowing the cap to open without deformation. The fastening force is maintained through the continuous mechanical connection during rotation, preventing strength loss.
Solution Approach 2:
The slot acts as an intermediary guide between the hook and the cap body during rotation. It constrains the movement path to prevent deformation while enabling smooth opening motion. This intermediary structure protects the cap from deformation and maintains fastening integrity.
3Ease of operation
If the door lock cap is completely separated from the grip cover for emergency key operation, then the door can be unlocked, but the door lock cap is highly likely to be lost or damaged
Solution Approach 1:
The door lock cap is segmented into rotatable sections that can open independently while remaining connected to the main body through the rotation mechanism. This allows the cap to be opened for key access without complete separation, preventing loss or damage while enabling emergency unlocking.
Solution Approach 2:
The door lock cap uses a dynamic rotating connection instead of static fixed or complete separation. The rotation mechanism allows the cap to move to an open position for key access while maintaining mechanical attachment, ensuring the cap cannot be lost or damaged during operation.
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
Prevents the door lock cap from being lost or damaged during emergency key operation, maintains consistent fastening force, and provides a 'click' sound for assembly confirmation.
Implementation Method 1
a button spring installed between the door lock body and the cap button to elastically support the cap button
Data Source
AI summary
An embodiment door outside handle assembly includes a door lock body configured to be attached to an outside of a door panel of a vehicle, a grip cover covering an outside of the door lock body and including a key hole configured to receive an emergency key, and a door lock cap on an outside of the grip cover, the door lock cap being slidable in a longitudinal direction of the vehicle to cover or uncover the key hole.