Sofa
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Solution Overview
Problem
Modular outdoor rattan sofas require a large number of screws for installation, making the process time-consuming, difficult, and costly, with high labor and transportation costs due to the complexity of screw-based assembly and large product packaging.
Innovation Solution
The sofa design incorporates a seat frame with snap buckles for quick connection to accessories, reducing the number of components and installation time, and allowing for faster assembly and reduced production costs, with snap buckles forming a secure connection similar to screw fixing but with fewer components and simpler installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screw-based modular installation is used, then the sofa can be assembled with simple tools, but the installation time exceeds one hour and requires many screws and holes
Solution Approach 1:
The patent extracts and eliminates the screw connection elements from the modular sofa assembly system. Instead of using multiple screws and holes for each module connection, the design employs a hole-free structure where modules connect through integrated joining mechanisms that require no additional fasteners, thereby dramatically reducing installation time while maintaining ease of assembly
Solution Approach 2:
The patent merges the connection function into the structural components themselves. The joining mechanisms are integrated directly into the module frames, combining the structural support and connection functions into unified elements, eliminating the need for separate screws and reducing the number of assembly steps
2Reliability
If multiple screws are used for modular installation, then the connection is secure, but the number of accessories increases and after-sales service cost increases
Solution Approach 1:
The patent removes all screw-based connection elements from the modular sofa system. The hole-free design eliminates the need for multiple screws per module connection, reducing the total quantity of accessories from dozens to minimal or zero screws, while maintaining secure connections through alternative joining mechanisms
Solution Approach 2:
The modular modules are designed with self-connecting features where the joining mechanisms are built into the module structures themselves. The modules can connect to each other autonomously without requiring external screws or fasteners, making the system self-sufficient and reducing dependency on numerous accessories
3Ease of manufacture
If multiple holes are punched during production for screw installation, then the modular connection is achieved, but labor cost increases and production complexity increases
Solution Approach 1:
The patent extracts and eliminates the hole-punching operation from the manufacturing process. By adopting a hole-free design, the production process no longer requires drilling or punching holes in the module frames, reducing production complexity and labor costs while maintaining the modular assembly capability through alternative connection methods
Solution Approach 2:
The patent integrates the connection functionality directly into the module structures without requiring separate hole-punching steps. The joining mechanisms are incorporated into the manufacturing of the module frames themselves, combining the structural fabrication and connection preparation into a single integrated process, thereby reducing production complexity
4Ease of operation
If traditional screw-based modular sofas are used, then the installation is straightforward with common tools, but the packaging volume is large and transportation cost is high
Solution Approach 1:
The patent removes all unnecessary connection accessories and packaging materials required for screw-based assembly. The hole-free design eliminates the need for packaging large quantities of screws, fasteners, and assembly instructions, significantly reducing the overall packaging volume and transportation requirements while maintaining installation accessibility
Data Source
AI summary
A sofa includes a sofa seat and a sofa seat accessory. The sofa seat includes a seat frame, a first outer wrapping, and first snap buckles. The first outer wrapping wraps the seat frame. The first snap buckles are disposed on at least one side of the seat frame. The sofa seat accessory is configured to be detachably mounted on the sofa seat. The sofa seat accessory includes an accessory frame, a second outer wrapping, and second snap buckles disposed on the accessory frame. When the sofa seat accessory is mounted to the sofa seat, each of the second snap buckles is matched to each of the first snap buckles to form a quick connection between the sofa seat and the sofa seat accessory.