Imitation Wood Board Structural Element With Double Tapered Cone
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Solution Overview
Problem
Existing structural elements for imitation wood boards face challenges in balancing durability, strength, and low weight, with conventional materials like chipboard and fiberboards struggling to combine scratch resistance, impact resistance, and thermal insulation while being cost-effective and environmentally friendly.
Innovation Solution
A structural element with inclined exterior and interior side walls, featuring rotational symmetry and a double tapered cone shape, which increases load-carrying surfaces and mechanical properties by distributing protuberances to eliminate weakness lines and enhance flexural strength and impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional materials like chipboard and fiberboards are used, then scratch resistance and strength are improved, but weight and cost increase
Solution Approach 1:
The board is segmented into three distinct layers: an exterior layer with fine chips for scratch resistance, a core layer with larger chips for strength, and a lightweight structural element with protuberances and recesses. This segmentation allows each layer to optimize for its specific function while reducing overall weight compared to homogeneous materials.
Solution Approach 2:
Different regions of the board have different material properties optimized for their specific functions. The exterior layer has fine chips for scratch resistance, the core has larger chips for structural strength, and the structural element has protuberances and recesses for lightweight reinforcement. This local optimization resolves the contradiction between strength and weight.
2Weight of moving object
If the degree of material filling is reduced to lower density and weight, then weight is improved, but strength and durability worsen
Solution Approach 1:
The structural element incorporates protuberances with curved surfaces and recesses that distribute stress more effectively than flat surfaces. The curved geometry of the protuberances provides mechanical reinforcement that maintains flexural strength while using less material, thus reducing weight without sacrificing durability.
Solution Approach 2:
The patent introduces a third dimension by creating protuberances and recesses that extend vertically through the core layer. This three-dimensional structural element adds strength in multiple directions and provides reinforcement without increasing planar material usage, thereby maintaining strength while reducing weight.
3Object-generated harmful factors
If biodegradable materials like lignocellulose fibers are used, then environmental friendliness is improved, but mechanical strength and durability worsen
Solution Approach 1:
The patent uses composite materials combining lignocellulose fibers with natural polymer binders and a structural element featuring protuberances and recesses. This composite structure provides mechanical reinforcement that compensates for the lower inherent strength of biodegradable materials, enabling environmentally friendly boards with adequate mechanical properties.
Solution Approach 2:
The curved surfaces of the protuberances and recesses in the structural element provide mechanical reinforcement that enhances the strength of biodegradable materials. The geometric configuration distributes loads more effectively, allowing the use of environmentally friendly lignocellulose fibers while maintaining acceptable mechanical strength.
Data Source
Figure 1A~1B
Figure 2A~2B
AI summary
A structural element (100) in the form of a layer of material comprising a bottom bearing surface (109) and primary structures (101), protruding upwards, with inclined exterior side walls (103), terminated by a top bearing surface (105), characterized in that it additionally comprises secondary structures (102) with inclined interior side walls (104), protruding downwards and extending from the top bearing surface (105) of the primary structure (101) to the plane determined by the bottom bearing surface (109) of the structural element (100).