Grooved Decorative Sheet for Conforming to Complex 3D Surfaces
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Solution Overview
Problem
Pre-formed decorative articles for complex 3D shapes are expensive to manufacture, heavy, and costly to store and ship, with issues in matching aesthetics and requiring professional installation, especially for stair treads.
Innovation Solution
A decorative article with grooves extending along a first axis, allowing it to conform to application surfaces, featuring a depth of at least 1/3 of the sheet thickness and operative width of 1 mm, enabling bending and adhesion without heating, and facilitating DIY installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If pre-formed decorative articles are used to fit complex 3D shapes, then the decorative article can conform to the application surface, but the manufacturing cost, weight, and shipping cost increase significantly
Solution Approach 1:
The decorative article is segmented into multiple grooves that divide the sheet into flexible segments. These grooves allow the article to be divided into smaller, more manageable sections that can independently conform to complex 3D surfaces, eliminating the need for expensive pre-formed custom shapes while maintaining shape conformity.
Solution Approach 2:
The article transitions from a rigid, pre-formed state to a flexible state through the introduction of grooves that change the structural parameters. The grooves create hinge lines that allow bending and conforming, transforming the article's geometric parameters to enable adaptation to various 3D surfaces without custom manufacturing.
2Shape
If pre-formed decorative articles are used to fit complex 3D shapes, then the decorative article can conform to the application surface, but the weight and storage cost increase
Solution Approach 1:
The decorative article utilizes a thin-sheet structure with grooves that act as flexible hinges, allowing the material to bend and conform to 3D surfaces without requiring thick, heavy pre-formed components. This flexible shell approach maintains shape conformity while significantly reducing weight compared to rigid pre-formed alternatives.
3Shape
If grooves are formed with depth of at least 1/3 of sheet thickness and operative width of 1 mm, then the sheet can conform to application surfaces, but the structural strength may be reduced
Solution Approach 1:
The grooves segment the sheet into regions connected by thin walls, creating a flexible structure that can bend without breaking. The segmentation allows stress to be distributed across multiple hinge lines rather than concentrating at single points, maintaining structural integrity while enabling conformability to application surfaces.
Solution Approach 2:
The grooves create local variations in thickness and flexibility, with thin walls providing bending capability at specific locations while maintaining full thickness in the bulk material regions. This local quality change allows the article to be flexible where needed while retaining overall structural strength.
Data Source
AI summary
A decorative article includes a sheet having a full thickness, a first surface, and a second surface opposite the first surface. Across at least a first region of the sheet, the second surface of the sheet defines a plurality of grooves, each groove extending along a first axis. The plurality of grooves are configured to permit the first region of the sheet to conform to an application surface. Each groove of the plurality of grooves has, along a second axis that is transverse to the first axis, an operative width of at least 1 mm across which a depth of the groove is no less than ⅓ of the full thickness of the sheet. The sheet includes, between adjacent grooves of the plurality of grooves, respective areas defined by the full thickness of the sheet, said full thickness being at least 0.5 mm along the second axis.