Motor Vehicle Door Handle Removable Cap Retention
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Solution Overview
Problem
Existing door handle designs for motor vehicles often result in the ornamental cap masking the lock being lost due to detachment during vehicle movement or washing, as they require complete removal for access.
Innovation Solution
A door handle with a removable cap that is securely fastened using translational movement only when the handle is in the open position, preventing disconnection when the vehicle is in motion, and featuring a flexible clip and centering means for secure alignment and easy disconnection without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cap is completely removable from the handle, then access to the lock is enabled, but the cap may be lost during vehicle movement or washing
Solution Approach 1:
The cap is designed to be dynamically retained on the handle during normal vehicle operation through vibration-resistant fastening means, but can be easily removed when the handle is in the open position. The system transitions from a static fully-removable cap to a dynamic system that adapts its retention based on handle position and vibration conditions.
2Reliability
If the cap is securely fastened to the handle, then the cap cannot be lost, but access to the lock requires tool removal
Solution Approach 1:
The cap assembly is segmented into the cap itself and the fastening means, allowing the cap to remain securely attached during normal operation while enabling tool-free removal when needed. The segmentation allows the fastening mechanism to be engaged or disengaged independently of the cap structure.
3Shape
If the cap extends over the entire length of the handle, then aesthetic continuity is ensured, but the structure becomes more complex
Solution Approach 1:
Instead of requiring the cap to extend over the entire length of the handle, the invention uses a cap that extends partially over the handle with fastening means positioned at specific locations. This partial coverage approach maintains aesthetic continuity where needed while reducing overall structural complexity.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention concerns a door handle (1) intended to be mounted on a door (2) of a motor vehicle and a method for mounting and dismounting a cap. The door handle (1) comprises a gripping sleeve (5) including an end portion (7) and is arranged to be movable in rotation between a rest position in which it is positioned substantially parallel to the door (2), the end portion (7) being adjacent to the door (2), and an open position of the door (2) in which it is inclined relative to the door (2), the end portion (7) being distant from the door (2). According to the invention, the gripping sleeve (5) includes a fixed portion (43) and a cap (9) removable relative to the fixed portion (43) forming the end portion (7) of the door handle (1). The cap (9) is intended to cover at least partially a lock (8) mounted on the door (2) of the vehicle. The gripping sleeve (5) includes fastening means allowing to fasten the cap (9) to the fixed portion (43) of the gripping sleeve (5) and to remove the cap (9) from the fixed portion (43) by a translational movement of the cap (9), only when the door handle (1) is in the open position of the door (2).