Sofa seat frame, sofa base assembly, sofa and sofa production and assembly process
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sofa seat frames, whether made of solid wood or metal, face issues such as inadequate supporting strength, complex assembly processes, material wastage, and low fault tolerance, which hinder standardized and efficient production and assembly, especially in the context of international trade and large-scale industrial production.
Innovation Solution
A sofa seat frame design featuring cross beams and longitudinal beams with integrated supporting elastic pieces and clamping strips, along with U-shaped connecting pieces and reinforcing ribs, enhances stability and supporting strength while simplifying assembly and disassembly processes, using metal materials for improved durability and modular design for efficient production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solid wood material is used for sofa seat frame, then it is light in weight and easy to process, but the supporting strength is not enough and service life is short
Solution Approach 1:
The patent uses metal materials (such as steel or aluminum alloy) to replace solid wood for manufacturing the sofa seat frame. Metal materials provide both high supporting strength and long service life while maintaining ease of processing through standardized metalworking techniques. The metal frame structure achieves superior mechanical properties compared to wood, resolving the contradiction between ease of manufacture and supporting strength.
2Strength
If metal material is used for sofa seat frame, then supporting strength is higher and service life is longer, but the structure becomes complex and assembly becomes troublesome
Solution Approach 1:
The metal seat frame is divided into modular components including longitudinal beams, cross beams, connecting pieces, and supporting elastic pieces. Each component is independently manufactured with standardized interfaces, allowing simple assembly through connection operations. The longitudinal beams contain U-shaped connecting pieces at their ends, enabling straightforward attachment to cross beams and racks, thus reducing overall structural complexity while maintaining high supporting strength.
Solution Approach 2:
The metal seat frame design uses universal connecting pieces that can attach to both cross beams and racks, serving multiple functions. The U-shaped connecting pieces on longitudinal beams provide standardized attachment points for various components, simplifying the overall assembly process and reducing the number of different part types needed, thereby reducing structural complexity.
3Reliability
If wooden seat frame and iron rack are produced in different workshops, then material requirements are met, but cost increases and installation efficiency decreases
Solution Approach 1:
The patent adopts metal materials for both the seat frame and the rack, creating a homogeneous material system. This uniformity allows both components to be manufactured in the same workshop using similar metalworking processes and quality control standards, eliminating the need for separate wood and metal workshops. The homogeneous metal construction simplifies the supply chain, reduces transportation distances, and improves installation efficiency while maintaining material compliance.
4Ease of manufacture
If rivets are used to connect seat cushion fabric and wooden frame, then connection is achieved, but fault tolerance rate is low and material waste increases
Solution Approach 1:
The metal seat frame includes integrated U-shaped connecting pieces with clamping structures that can directly secure the seat cushion fabric through mechanical clamping or binding actions. This self-contained connection system eliminates the need for separate riveting operations, allowing workers to attach fabric directly during assembly. The design provides fault tolerance by enabling easy adjustment and reconnection if needed, and reduces material waste by eliminating rivets and associated material losses.
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 solution improves the stability and supporting strength of the sofa seat frame, reduces material wastage, and facilitates efficient assembly and disassembly, making it suitable for large-scale industrial production and international trade by providing a high fault tolerance and cost-effective production process.
Implementation Method 1
a plurality of supporting elastic pieces are arranged between the two cross beams
Data Source
AI summary
The invention discloses a sofa seat frame, a sofa base assembly, a sofa and a sofa production and assembly process, the sofa seat frame comprises two cross beams arranged at intervals and two longitudinal beams connecting the two cross beams, wherein a plurality of supporting elastic pieces are arranged between the two cross beams; and each longitudinal beam comprises a first supporting plate for supporting a seat cushion and a first side plate arranged at one side of the lower part of the first supporting plate and used for being detachably connected with sofa fabric on the seat cushion. In the sofa seat frame provided by the invention, when the seat cushion is placed on the supporting elastic pieces, the first supporting plates can give a certain supporting force to the seat cushion, so as to improve the sitting comfort of users.