Modular Sofa with Zippered Flap for Compact Packaging and Shipping
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Solution Overview
Problem
The bulkiness of upholstered furniture, such as sofas and loveseats, leads to high transportation and storage costs, especially when shipped across oceans or delivered to online customers, necessitating disassembly for compact packaging, which is inefficient and costly.
Innovation Solution
A compactly packageable sofa design featuring a zippered flap between the seat cushion and seat back, allowing the seat back and arm panels to fit inside a compartment under the cushion, with the flap covering the gap between the cushion and back, enabling the sofa to be packed in a box only slightly larger than the depth of the cushion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the sofa is designed with a traditional attached structure between seat cushion and seat back, then the structural stability is improved, but the packaging volume increases significantly
Solution Approach 1:
The sofa is divided into separate modular components including the seat cushion, seat back, and arm panels that can be independently packaged. The gap between the seat cushion and seat back allows these components to be stacked efficiently without requiring additional attachment structures, enabling compact packaging while maintaining structural integrity through simple stacking and friction-based stability.
2Volume of stationary object
If the sofa components are disassembled for compact packaging, then the packaging volume is reduced, but the device complexity and assembly steps increase
Solution Approach 1:
The sofa components are pre-configured with standardized dimensions and attachment points during manufacturing. The seat cushion, seat back, and arm panels are designed with predetermined orientations and connection mechanisms that simplify the assembly process at the customer end, reducing the complexity despite the disassembled shipping state.
3Stability of the object's composition
If the sofa is packaged in a larger box to accommodate traditional structure, then the structural integrity is maintained, but the transportation cost increases
Solution Approach 1:
The sofa components are nested within each other during packaging, with smaller components fitting into spaces between larger components. The arm panels and seat back cushions are positioned within the footprint of the seat cushion, creating a compact nested arrangement that minimizes packaging volume and transportation cost while maintaining structural integrity through proper stacking and inter-component support.
Data Source
AI summary
A compactly packageable sofa includes a seat back, a seat cushion, two arm panels and a zippered flap. In the assembled state of the sofa, the seat cushion and the seat back are held between the arm panels, and the zippered flap is attached to both the seat back and the seat cushion. The seat back does not contact the seat cushion in the assembled state of the sofa. In the compact state of the sofa, the seat back, the seat cushion and the arm panels are not attached to one another. Instead, the arm panels fit inside a compartment under the seat cushion. The flap is not attached to both the seat back and the seat cushion in the compact state of the sofa. In the compact state, the sofa is contained in a packing box whose width is only slightly greater than the depth of the seat cushion.