Vehicle Interior Part With Variable Parting Line Height
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle interior parts with constant parting line height can form large gaps when contacting the vehicle body, affecting appearance and making it difficult to lift, as they do not adjust to varying characteristics across different portions.
Innovation Solution
A vehicle interior part with a main body member and two plate-like members joined together, forming a laminate with varying parting line heights and curvature radii across different peripheral portions to accommodate specific characteristics, allowing for adjustable cross-sectional shapes and improved fit and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the parting line height is set to a constant value over the entire periphery, then the manufacturing process is simplified, but large gaps are formed between the interior part edge and vehicle body member, deteriorating appearance and making it difficult to lift
Solution Approach 1:
The patent applies local quality by varying the parting line height position according to different peripheral portions of the interior part. Specifically, the parting line height is set to a first value in a first peripheral portion and a second value different from the first value in a second peripheral portion, allowing each portion to have optimized characteristics for its specific function (appearance vs. grip)
Solution Approach 2:
The patent segments the peripheral portion into multiple regions (first peripheral portion and second peripheral portion) with different parting line height characteristics. This segmentation allows independent optimization of each region - the first portion for appearance quality and the second portion for ease of gripping and lifting
2Shape
If the parting line height is varied among different peripheral portions, then the cross-sectional shapes are optimized for specific functions, but the manufacturing complexity increases
Solution Approach 1:
The patent implements local quality by defining different parting line height positions for different peripheral portions. The first peripheral portion has a parting line at a first height value optimized for appearance, while the second peripheral portion has a parting line at a second height value optimized for gripping, allowing functional optimization without requiring completely separate manufacturing processes
Solution Approach 2:
The patent introduces dynamic characteristics into the previously static constant parting line design. By making the parting line height variable across different portions rather than uniform, the design adapts to different functional requirements at different locations, transforming a static uniform structure into a dynamically optimized heterogeneous structure
3Shape
If the curvature radius is varied among different portions, then the fit with vehicle body is improved, but the molding process becomes more complex
Solution Approach 1:
The patent applies local quality by setting different curvature radius values for different peripheral portions. The first peripheral portion has a first curvature radius optimized for appearance and fit with the vehicle body, while the second peripheral portion has a second curvature radius optimized for gripping, allowing each portion to be precisely molded according to its specific requirements
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 allows for optimized cross-sectional shapes that minimize gaps with the vehicle body, enhance appearance, and facilitate easy detachment by varying the parting line height and curvature radii, improving both functionality and aesthetics.
Implementation Method 1
A first edge of the first peripheral portion and a second edge of the second peripheral portion are welded to each other along a parting line
Data Source
AI summary
A main body member, a first member, and a second member are joined together to form a laminate. A first edge of a first peripheral portion of the first member and a second edge of a second peripheral portion of second member are welded to each other along a parting line. A height position of the parting line in a thickness direction of the laminate is different between first and second portions defined in a peripheral direction of the laminate. Each of a first curvature radius of a curved shape of the first peripheral portion and a second curvature radius of a curved shape of the second peripheral portion is different between the first and second portions.