Vehicle Door Handle Alignment for Uniform Gap Assembly
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Solution Overview
Problem
Existing handle assemblies for motor vehicles require complex and time-consuming alignment of components, often involving delicate centering elements that are easily bent and have limited reusability, leading to increased material usage and manufacturing costs.
Innovation Solution
A handle assembly with a movably mounted alignment device featuring centering devices that can transition between engagement and passive positions, allowing for simple and secure alignment of the door handle with a recess using clips and fasteners, and a return mechanism to facilitate easy repositioning without additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If flexible centering pins are used for alignment, then the door handle can be positioned precisely on the visible side of the door panel, but the centering elements can easily bend and are only reusable to a limited extent
Solution Approach 1:
The alignment device incorporates a movable centering element that can transition between an extended alignment position and a retracted storage position. This dynamic capability allows the delicate centering pins to perform their precise positioning function when extended, then be protected from damage and reused effectively when retracted into the housing during subsequent assembly steps.
2Manufacturing precision
If additional alignment devices and centering elements are integrated into the handle assembly, then alignment precision is improved, but the device complexity increases
Solution Approach 1:
The alignment device is integrated directly into the door handle assembly structure, combining the alignment function with the existing handle components. The centering elements are housed within and connected to the door handle mechanism itself, eliminating the need for separate alignment tools or devices and reducing overall assembly complexity while maintaining high alignment precision.
3Manufacturing precision
If a multitude of small alignment elements are integrated into the handle assembly, then multi-axis alignment is supported, but material usage and manufacturing costs increase
Solution Approach 1:
The alignment function is divided into multiple independent centering elements that can be distributed around the door handle perimeter. These segmented elements work together to provide multi-axis alignment capability, with each element contributing to the overall positioning accuracy. The modular nature of these elements allows for efficient material usage and simplified manufacturing compared to a single complex alignment mechanism.
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
Enables secure, cost-effective, and reproducible alignment of the door handle with predefined gap dimensions, suitable for mass production, reducing material usage and assembly complexity.
Implementation Method 1
the alignment device has a spring element which moves the alignment device from the engagement position into the passive position
Data Source
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AI summary
The present invention relates to a handle assembly (1) for a motor vehicle, comprising a door handle mechanism (2) and a door handle (3) movably mounted on the door handle mechanism (2), wherein the door handle (3) is designed to be arranged in a recess (4) of a vehicle door (5) of the motor vehicle, forming a circumferential gap between the door handle (3) and an inner side (6) of the recess (4). The invention further relates to a method for mounting a door handle (3) on a vehicle door (5) for a motor vehicle.