Motor Vehicle Door Handle Cover Element Retention
Solution Overview
Problem
Existing motor vehicle door handles with removable cover elements can be lost, posing a security risk as they are not securely attached and can be detached from the handle.
Innovation Solution
A door handle design where the cover element is connected to the housing shell and features a deformable region adjacent to the cover element, allowing it to be moved between closed and open positions securely, ensuring the cover element remains attached and cannot be lost, with the deformable area facilitating easy release and engagement, and incorporating a joint for rotatable movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cover element is completely detachable from the handle, then it is easy to remove and access the lock cylinder, but the cover element can be lost
Solution Approach 1:
The cover element is nested within a receptacle on the housing shell, allowing it to be easily removed and reattached. The receptacle provides a defined attachment location that prevents the cover element from being lost while still allowing easy access to the lock cylinder when needed.
Solution Approach 2:
The deformable area is pre-configured in the housing shell to facilitate the removal and reattachment of the cover element. This pre-designed deformation zone allows users to easily manipulate the cover element without requiring additional tools or complex mechanisms.
2Reliability
If the cover element is securely attached to prevent loss, then it cannot be lost, but it becomes difficult to remove for emergency access
Solution Approach 1:
The housing shell has a localized deformable area that provides a specific zone for easy manipulation. This deformable region is positioned to facilitate cover element removal while other areas maintain structural integrity to prevent accidental loss of the cover element.
3Adaptability or versatility
If the cover element is movable between closed and open positions, then it provides secure coverage and easy access, but it may become detached or lost
Solution Approach 1:
The cover element is nested within a receptacle that provides a defined attachment location. This nesting arrangement allows the cover element to move between closed and open positions while ensuring it remains attached to the handle when not in use, preventing loss.
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 cover element is reliably held captive in both positions, preventing loss and ensuring secure access to the lock cylinder during emergencies, while maintaining a flush and compact design with enhanced assembly ease and longevity.
Implementation Method 1
an outer area of the housing shell adjacent to the cover element is at least partially deformable to allow the cover element to be moved out of the housing shell
Data Source
Figure 1~2
Figure 3~6
Figure 7
AI summary
The handle (100) has an electronic unit which is arranged in a housing (10) of a door handle (1). Lock cylinders are arranged within the housing. An emergency key is inserted from outside to the housing to activate a security system (4) of a motor car (2) during emergency situation. A lid element (30) covering an outer region of the lock cylinder is moved between a closing position and an opening position. The lid element is connected with the housing during both closing and opening positions.