Door Assembly Mounting Component for Tight Interior Trim Gaps
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Solution Overview
Problem
The existing door assembly technology faces challenges in achieving a small gap pattern between the interior trim component and the door skin, particularly with flat support components, leading to a deterioration in visual quality due to accumulated tolerances during attachment.
Innovation Solution
The proposed solution involves using fastening elements with a head section to attach both the support component and the interior trim component to the door skin, utilizing a combination of expandable and deformable locking mechanisms, such as latching sections and shaft sections with self-tapping threads, to ensure precise and cost-effective assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interior trim component is attached to the support component with separate fastening means, then the attachment is secure, but the cumulative tolerance increases the gap pattern between the interior trim component and the door skin
Solution Approach 1:
The patent combines two separate fastening operations into one by designing the fastening element to simultaneously attach both the support component to the door skin and the interior trim component to the support component. This single fastening element with a head portion protruding from the support component eliminates the cumulative tolerance effect that would occur with separate fastening means, while still providing secure attachment for both components.
Solution Approach 2:
The fastening element is designed with multi-functionality, serving dual purposes: first as a fastening means to attach the support component to the door skin, and second as an additional attachment point for the interior trim component. This universal fastening element reduces the overall number of fastening components needed while improving gap pattern control.
2Area of stationary object
If multiple fastening elements are arranged on the peripheral edge of the support component, then the surface area utilization is maximized, but the device complexity increases
Solution Approach 1:
The patent segments the fastening function by arranging multiple fastening elements at different locations on the peripheral edge of the support component. This segmentation allows each fastening element to independently secure the interior trim component at specific points, maximizing surface area utilization while maintaining a relatively simple overall structure through standardized fastening element design.
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
This approach allows for a more efficient and cost-effective attachment process, reducing the gap pattern and enhancing the visual quality of the door assembly by maximizing the utilization of the support component area and providing a secure, form-fitting connection between components.
Implementation Method 1
the receptacle can be expandable. An expandable receptacle can enable the head section to be received when the head section is pressed against the receptacle. When an expandable receptacle is provided, the head section can be pressed against the expandable receptacle so that the receptacle expands until the head section can pass through the receptacle. After the head section has passed through the receptacle, the receptacle can narrow again.
Data Source
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Figure 3A
AI summary
The solution proposed in the invention relates to a door assembly and an assembly method for a door assembly with a door skin, a support component and an interior trim component, wherein the support component is fastened to the door skin by at least one mounting component. The at least one mounting component is also used for mounting the interior trim component since a head section of the mounting component projects from the support component and the interior trim component is mounted on the head section.