Flat-Pack Sofa Assembly With Threaded Rod Frame Connections
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Solution Overview
Problem
Traditional sofa designs with one-piece frames are difficult to assemble and disassemble, making them challenging to package and store efficiently for both warehouses and end consumers.
Innovation Solution
The sofa is broken down into three boxes, with chaise sections assembled using a metal threaded rod and secured with a metal nut, allowing for easy assembly and disassembly by the consumer, and the legs are twisted onto the seat frame for compact storage and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional one-piece sofa frame is used, then the sofa structure is stable and strong, but it is difficult to assemble and disassemble and cannot be packaged compactly for storage
Solution Approach 1:
The sofa frame is divided into multiple modular sections that can be independently assembled and disassembled. Each section contains standardized connection points that allow for easy assembly using simple fastening mechanisms, while maintaining structural integrity when assembled. The segmentation enables flat-pack shipping and flexible storage configurations.
2Productivity
If a traditional one-piece sofa frame is used, then the sofa provides continuous support, but it is challenging to package and store efficiently in warehouses
Solution Approach 1:
The sofa is segmented into modular components that can be collapsed and packed into compact flat boxes. This segmentation allows multiple sofa units to be stored efficiently in warehouse space, significantly improving storage productivity while the modular design actually simplifies the overall manufacturing process through standardization.
Solution Approach 2:
The sofa components are designed to nest within each other when disassembled, with larger frames containing smaller elements. This nesting capability maximizes storage density in both warehouse and consumer environments, allowing efficient use of space without requiring complex storage infrastructure.
3Volume of moving object
If the sofa is designed for easy disassembly, then it can be stored in a flat box for compact storage, but the assembly process requires multiple parts and connection mechanisms
Solution Approach 1:
Standardized connection mechanisms are used across all sofa components, with universal fasteners and alignment features that work across different module types. This universality reduces the variety of unique parts needed while enabling easy assembly and compact packaging, as the same connection system handles both assembly and disassembly operations.
Data Source
AI summary
This invention concerns a sofa which solves the problems of the prior art by providing a sofa that can easily be assembled or disassembled by the end consumer at home. The disassembled sofa can be stored in 3 flat boxes. Storage in the flat boxes not only helps the warehouse to store the sofa, but when the end user has purchased the sofa it is easier in such flat boxes to transport it to the location where it will be assembled. The way this invention accomplishes these results is as follows: The parts of the sofa can be broken down into three boxes. Chaise sections can be assembled by placing the seat back flat on the ground and placing the seat frame/arm upright on top of the seat back. A metal threaded rod is used to connect the seat frame and the seat back. A metal nut is used to secure the seat frame to the back using a wrench that comes provided in the package of the kit. The legs are then twisted onto the bottom of the seat frame.