Separator Clip Geometry for Error-Proof Panel Attachment
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Solution Overview
Problem
Existing vehicle body frame structures face challenges in efficiently attaching and identifying the correct orientation of separators during assembly, leading to potential misassembly and increased costs due to the need for multiple separator designs for different frame members.
Innovation Solution
A clip engagement structure with a main body and locking claws having symmetrical and asymmetrical side surfaces, and corresponding clip holes, ensures easy visual identification and prevents misassembly by providing unique shapes for each frame member, allowing shared components and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separator designs are used for different frame members, then assembly correctness can be ensured, but manufacturing costs and device complexity increase
Solution Approach 1:
The engagement clip employs asymmetric side surfaces where one side surface has a first shape and the other side surface has a second shape different from the first. This asymmetry creates unique geometric signatures for different frame members, enabling visual identification and prevention of misassembly while using a single universal separator design rather than multiple specialized designs
2Reliability
If asymmetric shapes are used for identification, then misassembly is prevented, but manufacturing precision requirements increase
Solution Approach 1:
The asymmetric identification features are implemented as localized geometric variations on specific side surfaces of the engagement clip, while other portions of the component maintain standard dimensions and tolerances. This concentrates precision requirements only where needed for identification, rather than requiring high precision across the entire component
3Ease of operation
If locking claws are made elastically deformable, then assembly ease is improved, but structural strength may be compromised
Solution Approach 1:
The locking claws are designed with elastic deformability that allows them to dynamically adapt during assembly - deforming elastically to pass through the hollow closed cross section and then maintaining a stable locked position. This dynamic behavior enables easy assembly while preserving sufficient locking strength through the elastic recovery force
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 solution facilitates easy assembly, reduces misassembly risks, maintains airtightness, and lowers production costs by enabling shared components and simplified mold design.
Implementation Method 1
locking claws that are positioned at ends of the main body, penetrate the clip hole and are hooked to the second surface of the panel such that ends of the locking claws on a side of the base are elastically deformable in a direction of the ends of the main body
Implementation Method 2
the foamable base material receives heat from the outside and foams to close the closed cross section
Data Source
AI summary
A clip engagement structure includes: a clip hole in a panel; and an engagement clip in the clip hole, including a base contacting one surface of the panel, a main body permanently affixed with the base, protruding from the clip hole to another surface, and locking claws provided at ends of the main body, penetrate the clip hole, and hooked to the other surface. Ends of the locking claws near the base are elastically deformable toward the ends of the main body in which side surfaces on a side orthogonal to a line coupling the locking claws have different shapes and are symmetrical on the end sides across a center of the main body. In the clip hole, parts allowing passing of the side surfaces are a similar in shape, and the locking claws are allowed to pass through parts by elastic deformation the locking claws.