Thin Real-Wood Panel Structure to Prevent Veneer Cracking
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Solution Overview
Problem
Existing thin panel-shaped building elements with real wood surfaces are prone to cracking and damage under bending stress due to their lack of stability, making them unsuitable for renovation applications and limiting their thickness to above 5 mm.
Innovation Solution
A plate-shaped component with a visible real wood layer is designed, featuring a stabilizing layer between the veneer and support layers, and optionally between the counter-tension and support layers, with a total thickness of 1.5 mm to 4.0 mm, enhancing flexibility and protecting the wood layer from cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the total thickness of the plate-shaped component is reduced to enable flexibility for renovation applications, then the component can be installed directly over existing floors with simple tools, but the real wood layer becomes prone to cracking and damage under bending stress
Solution Approach 1:
The patent applies composite material construction by combining real wood veneer layer with multiple synthetic layers including stabilizing layer, support layer, and counter-tension layer. This composite structure allows the thin component (1.5-4.0 mm) to achieve both flexibility for installation and sufficient strength to prevent cracking, as each layer contributes specific properties that compensate for the limitations of using real wood alone at reduced thickness
Solution Approach 2:
The stabilizing layer positioned between the real wood veneer layer and the support layer acts as an intermediary that protects the wood layer from bending stresses. This intermediate layer prevents direct transmission of stress to the vulnerable wood veneer, thereby preventing cracking while allowing the overall component to remain thin and flexible for renovation applications
2Reliability
If a stabilizing layer is added between the veneer layer and support layer to prevent cracking, then the real wood layer is protected from damage under bending stress, but the component complexity increases
Solution Approach 1:
The patent segments the protective structure into distinct functional layers: stabilizing layer, support layer, and counter-tension layer. Each segment performs a specific function in stress distribution and protection, allowing the complex protective system to be managed through modular layering rather than a monolithic structure, thereby making the complexity manageable and the manufacturing processable
3Loss of substance
If the real wood layer is made thinner to reduce material usage and cost, then sustainability is improved, but the wood layer becomes more susceptible to damage without adequate substrate support
Solution Approach 1:
The patent uses composite material construction where thin real wood veneer (0.55-0.65 mm) is combined with multiple synthetic support layers. The composite structure provides the mechanical strength and stability that the thin wood layer would lack alone, enabling sustainable reduction of real wood usage while maintaining durability through the synergistic combination of materials
Solution Approach 2:
The stabilizing and support layers are positioned beforehand to cushion and protect the thin real wood veneer layer from bending stresses before the component is installed and subjected to use conditions. This prior cushioning prevents damage to the vulnerable thin wood layer, enabling its use at reduced thickness for sustainability purposes
Data Source
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AI summary
A plate-shaped component (1) comprising a visible-side veneer layer (2) made of real wood and a counter-tension layer (3), wherein a support layer (4) is arranged between the veneer layer (2) and the counter-tension layer (3). According to the invention, a stabilizing layer (5) is arranged between the veneer layer (2) and the support layer (4) and/or between the counter-tension layer (3) and the support layer (4), wherein the plate-shaped component (1) has a total thickness (SG) of 1.5 mm to 4.0 mm.