Skin material
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Solution Overview
Problem
Existing skin materials lack optimal design properties for enhanced visualization, particularly in products where the skin material's surface is visible, such as vehicle interiors and furniture, due to insufficient color differentiation and durability.
Innovation Solution
A skin material comprising a first fibrous base material with through holes and a second fibrous base material laminated on its back, where the second material's color differs significantly enough to be visually recognizable through the holes, with specific dimensions and arrangements of the holes to improve durability and tear strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If through holes are provided in the skin member to enable visualization of the underlying layer, then design properties and visual recognition are improved, but durability and tear strength deteriorate
Solution Approach 1:
The patent applies porous material principles by providing through holes in the skin member at specific positions corresponding to convex-concave patterns. The holes are strategically positioned to pass through protruding portions while avoiding recessed portions, creating a porous structure that enables visual recognition of the underlying layer while maintaining structural integrity and tear resistance.
2Ease of operation
If the skin member is made thinner to improve flexibility and comfort, then ease of operation is improved, but durability and strength worsen
Solution Approach 1:
The patent applies local quality principles by creating a multi-layer structure where the skin member has different properties in different regions. The through holes are selectively positioned only at protruding portions of the convex-concave pattern, while recessed portions maintain full material continuity. This localized modification provides flexibility where needed while preserving strength where required.
3Shape
If convex-concave patterns are added to the skin member surface to enhance visual design, then design properties are improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies merging principles by combining multiple functions into a single integrated structure. The convex-concave patterns and through holes are formed as part of the same skin member manufacturing process, rather than adding separate components. The through holes are positioned to correspond with the convex-concave pattern features, merging the structural reinforcement function with the visual design function in a unified manufacturing approach.
Data Source
AI summary
In a skin material, a front face of a first fibrous base material is a first color and a front face of a second fibrous base material is a second color. The second fibrous base material is laminated on a back face of the first fibrous base material. A through hole of the first fibrous base material penetrates the first fibrous base material in a laminating direction. A dimension of the through hole in a first direction is set to a first value (N1). A dimension of the through hole in a second direction is set to a second value (N2). A dimension of the through hole in the laminating direction is set to a third value (N3). The first value (N1) and the second value (N2) are set to be 0.38 times or more and 12 times or less with respect to the third value (N3).