Vehicle Door Handle Support Part Positioning and Load Distribution
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Solution Overview
Problem
Existing vehicle door designs face challenges in accurately positioning the outer door handle during mounting and in efficiently transferring actuation forces, leading to potential load peaks and increased robustness requirements in screw connections.
Innovation Solution
A vehicle door design featuring a support part with form-fit connections on the inside of the covering, providing positioning aids to ensure precise alignment and distribute actuation forces effectively, eliminating the need for separate alignment steps and reducing load peaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the outer door handle is fixed directly to the covering using a screw connection, then the actuation force can be transferred to the covering, but the positioning accuracy of the door handle is insufficient and load peaks occur due to small contact surfaces
Solution Approach 1:
The fixing structure is segmented into a support part and a covering, with the support part being further segmented into a backing plate and a positioning element. This segmentation allows the positioning element to protrude through the covering and provide precise positioning for the door handle, while the backing plate distributes loads over a larger surface area, resolving the contradiction between positioning accuracy and load distribution.
2Reliability
If a robust screw connection is used to transfer actuation force, then the force transfer is reliable, but the contact surfaces must be very small which creates load peaks in the covering and on the door handle
Solution Approach 1:
The support part is segmented into a backing plate and a positioning element. The backing plate has a larger surface area that distributes the actuation force over a broader region of the covering, reducing load peaks. The positioning element provides a focused contact point for the door handle, ensuring reliable force transfer. This segmentation resolves the contradiction between reliable force transfer and avoiding load peaks.
3Ease of operation
If the outer door handle is mounted on the covering, then the door can be actuated, but a separate aligning step is necessary for precisely aligning the position of the door handle
Solution Approach 1:
The positioning element is pre-integrated into the support part, protruding through the covering at the correct position before the door handle is installed. This preliminary positioning action eliminates the need for separate aligning steps during door handle installation, making the process easier and faster while maintaining precise alignment.
4Stability of the object's composition
If the support part is fixed to the covering, then the door handle position is stabilized, but the fixing structure becomes more complex
Solution Approach 1:
The support part is designed as a multi-functional component that combines the functions of a backing plate (for load distribution and fixing to the covering) and a positioning element (for precise door handle alignment). This universal design stabilizes the door handle position while avoiding the need for separate positioning fixtures, thereby reducing overall structural complexity.
Data Source
AI summary
A vehicle door for a motor vehicle has a support part arranged on an inside of a covering of the vehicle door. An outer door handle is arranged on an outside of the covering for actuating the vehicle door. The outer door handle is fixed on the support part. An elevation is provided on the support part on a fixing side of the support part facing towards the covering for forming a positioning aid. The elevation is received in the vehicle door in an aperture in the covering tailored to the elevation. Here, the support part and the covering are tailored to each other in such a way that they are connected to each other in a form fit manner in at least one form fit zone.