Flat-pack Coffin Assembly via Tension Panels
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Solution Overview
Problem
Traditional coffins are expensive, time-consuming to produce, and may contain toxic materials, while ecologically friendly alternatives often lack robustness and are difficult to rapidly manufacture or handle after cremation.
Innovation Solution
A coffin design that can be assembled from flat panels without fasteners or adhesives, using a primary tension panel and secondary tension panels to create a quadrilateral wall structure, applying tension to retain the panels and form a cavity, with engaging features and locking mechanisms for easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional wooden coffins are made using cabinet making techniques, then strength and durability are improved, but manufacturing time and cost increase significantly
Solution Approach 1:
The coffin is divided into flat panel components that can be manufactured separately and assembled quickly. The panels are cut to size and shape beforehand, then assembled using simple joining mechanisms without requiring traditional cabinet making techniques, thus maintaining strength while reducing manufacturing time.
Solution Approach 2:
The flat panels are pre-cut and pre-shaped before assembly. All necessary cutting and shaping operations are completed in advance, allowing the final assembly to be a simple matter of joining pre-prepared components, which dramatically reduces on-site or final manufacturing time while maintaining structural integrity.
2Object-affected harmful factors
If ecologically friendly materials like cardboard are used, then environmental impact is reduced, but robustness and moisture resistance deteriorate
Solution Approach 1:
The material properties are optimized by controlling the density, thickness, and composition of the wood-based panels. The panels are engineered to have appropriate moisture resistance and structural strength while remaining from renewable, biodegradable materials. The tension panel design utilizes the material's tensile properties effectively to achieve structural integrity.
Solution Approach 2:
The coffin structure combines multiple flat panel components with different functional properties. The tension panels, side panels, and end panels work together as a composite system where the tension panels provide structural reinforcement and the engaging features create mechanical interlocking, achieving robustness through material and structural composition rather than relying on a single heavy material.
3Strength
If fasteners and adhesives are used for assembly, then structural integrity is improved, but ease of assembly and disassembly deteriorates
Solution Approach 1:
The engaging features are designed to create self-locking joints that maintain structural integrity without requiring additional fasteners or adhesives. The tension panels apply continuous force to the side and end panels, creating friction and mechanical interlocking that holds the structure together strongly while allowing simple manual assembly and disassembly by releasing the tension.
4Object-affected harmful factors
If cardboard coffins are cremated, then environmental impact is reduced, but ash handling becomes difficult due to retained shape
Solution Approach 1:
The material composition and density of the flat panels are optimized for cremation performance. The wood-based panels are designed to combust completely and collapse into fine ash rather than retaining their original shape. The panel thickness, moisture content, and material composition are controlled to ensure complete combustion and easy ash handling while maintaining environmental friendliness.
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 design allows for rapid assembly and disassembly, reduces material waste, and provides a robust, eco-friendly coffin that can be efficiently manufactured and handled, addressing the issues of cost, durability, and environmental impact.
Implementation Method 1
said primary tension panel, when located substantially within said wall, places at least said side panels in tension to thereby retain said primary tension panel within said wall
Data Source
AI summary
A coffin or container that can be erected or assembled from a substantially knock down or flat state, which includes:—a primary tension panel;—a pair of side panels; and—a pair of end panels; wherein, in an assembled form, an end of each said side panel is releasably attached to each end panel via complementary engaging features on each side panel to define a substantially quadrilateral wall, such that said primary tension panel, when located substantially within said wall, places at least said side panels in tension to thereby retain said primary tension panel within said wall and define, at least in part, a cavity.