Foldable Drawer with Hinged Spacers for Tool-Free Assembly
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Solution Overview
Problem
Flat pack furniture assembly is time-consuming and requires tools and fasteners, which are easy to lose, and disassembly is difficult, especially for temporary accommodation users, and permanent fasteners often damage components.
Innovation Solution
A drawer design that allows conversion between deployed and flat pack configurations without detaching components, using spacers with hinges and braces for easy folding and rigidity, eliminating the need for tools and fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If permanent fasteners such as screws and nails are used to assemble furniture, then the furniture structure is strong and stable, but the furniture becomes difficult to disassemble and may cause component damage
Solution Approach 1:
The drawer is divided into separate components (body panels, spacers, braces) that can be easily assembled and disassembled without permanent fasteners. The spacers are further segmented into two portions that can fold relative to each other, enabling both structural integrity and easy conversion between configurations.
Solution Approach 2:
The spacer is designed with pivotal connections allowing it to dynamically change between a rigid extended configuration (providing structural strength in deployed state) and a folded configuration (enabling easy storage and transport). This dynamic capability resolves the contradiction by making the structure adaptable rather than permanently fixed.
2Volume of moving object
If flat pack furniture is designed for easy transport, then the furniture can be compacted to small size, but the assembly process becomes time-consuming and requires tools and fasteners
Solution Approach 1:
The spacers are pre-connected to the body panels through pivotal connections during manufacturing, so that when the user receives the flat pack furniture, the spacers are already in position and only need to be unfolded and locked into place with the provided brace, eliminating the need for tools and fasteners during assembly.
Solution Approach 2:
A simple brace acts as an intermediary component that locks the spacer in its extended position to provide structural stability. This brace can be easily inserted and removed without tools, serving as a temporary mediator that provides strength during use but allows quick disassembly for compact storage.
3Strength
If the spacer is extended to provide structural support in deployed configuration, then the drawer is rigid and stable, but the flat pack configuration occupies more space
Solution Approach 1:
The spacer is designed as a dynamic component that can pivot between an extended configuration (providing structural rigidity when the drawer is deployed) and a folded configuration (reducing volume for compact storage). The pivotal connections allow smooth transition between these two states, resolving the contradiction between strength and compactness.
Data Source
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AI summary
A furniture unit (101) which can be unfolded from a flat pack configuration to a deployed configuration. Two rigid body panels (102, 103) are connected by hinges to three foldable spacer panels (104, 105, 106). In the deployed configuration, the three spacer panels hold the body panels apart to define a space between the body panels.