Sofa seat frame, sofa base assembly, sofa and sofa production and assembly process
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Solution Overview
Problem
Sofa seat frames made of solid wood have insufficient supporting strength, complex connection processes, high material waste, and are not suitable for standardized production, while metal frames face issues with complex structures, low supporting strength, and inefficient assembly.
Innovation Solution
A sofa seat frame design featuring cross beams and longitudinal beams with integrated supporting plates and elastic pieces, along with metal connecting pieces, allows for stable and efficient assembly, enhancing supporting strength and simplifying the connection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solid wood is used to make the sofa seat frame, then the processing is easy and the structure is simple, but the supporting strength is insufficient and the service life is short
Solution Approach 1:
The patent applies composite materials by combining wood and metal in the seat frame structure. The longitudinal beams use wood for ease of processing, while metal reinforcing plates and connecting pieces are integrated to provide enhanced supporting strength. This composite approach resolves the contradiction between easy processing and sufficient strength.
2Device complexity
If solid wood is used to make the sofa seat frame, then the structure is simple, but the connection process is complex and connection stability is poor
Solution Approach 1:
The patent introduces metal connecting pieces as intermediaries to simplify the connection process. These specialized connecting components serve as mediators between different structural elements (longitudinal beams, cross beams, rack), replacing complex traditional joinery methods and improving connection stability while maintaining structural simplicity.
3Ease of manufacture
If solid wood is used to make the sofa seat frame, then the material is easy to process, but material waste is high due to assembly errors
Solution Approach 1:
The patent applies preliminary action by pre-assembling the seat frame components (longitudinal beams, cross beams, supporting elastic pieces) into complete seat frame assemblies at the wood factory before transportation. This preliminary assembly allows for quality control and error detection early in the production process, reducing material waste from assembly errors at the sofa assembly workshop.
4Strength
If metal material is used to make the sofa seat frame, then the supporting strength is higher, but the structure becomes complex and assembly is troublesome
Solution Approach 1:
The patent merges multiple structural elements into integrated components. The longitudinal beams combine wood with integrated metal side plates and supporting plates. The cross beams are integrated with hooks for supporting elastic pieces. This merging reduces the number of separate parts and simplifies assembly while maintaining high supporting strength through the metal-reinforced structure.
5Ease of manufacture
If different materials (wood and metal) are used for the seat frame and rack, then the processing is easier for each material, but the production cost is higher and installation efficiency is lower
Solution Approach 1:
The patent applies preliminary action by pre-assembling complete seat frame assemblies (combining wood and metal components) at the wood factory before transportation to the sofa assembly workshop. This preliminary assembly reduces the number of steps and complexity at the final assembly stage, improving installation efficiency while maintaining the advantages of processing different materials at specialized facilities.
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 design improves sitting comfort, reduces material waste, and facilitates standardized, automated production, making it suitable for large-scale assembly line industrial production.
Implementation Method 1
a plurality of supporting elastic pieces (13) are arranged between the two cross beams (12)
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.