Sofa Seat Frame with Modular Metal Assembly for Simplified Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sofa seat frames made of solid wood have insufficient supporting strength, complex connection processes, high material waste, and non-uniform production issues, while metal frames face structural complexity and assembly difficulties, leading to instability and increased production costs.
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 and hooks, facilitates easy assembly and enhances structural stability and strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solid wood is used to make the sofa seat frame, then the frame is light in weight and easy to process, but the supporting strength is insufficient and the service life is short
Solution Approach 1:
The patent uses metal materials (such as iron or steel) to manufacture the sofa seat frame instead of solid wood. Metal materials provide both high supporting strength and long service life while still being processable through standard metalworking techniques. The metal frame structure maintains ease of manufacture through processes like bending, welding, and assembly, while dramatically improving the supporting strength and durability compared to wooden alternatives.
2Strength
If metal materials are used to make the sofa seat frame, then the 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 multiple standardized components including longitudinal beams, cross beams, connecting pieces, and supporting elastic pieces. Each component is independently manufactured with standardized dimensions and connection interfaces. This segmentation allows for simplified manufacturing of individual parts, easy assembly through standardized connections, and facilitates modular replacement and maintenance while maintaining overall structural strength.
3Ease of manufacture
If traditional manual production processes are used for the wooden seat frame, then the production is flexible, but the production efficiency is low and quality unity is difficult to maintain
Solution Approach 1:
The patent transitions from manual woodworking processes to standardized metal manufacturing processes with controlled parameters. Metal frames are produced using standardized dimensions, tolerances, and manufacturing parameters that enable consistent quality across all units. The standardized connection pieces and modular components allow for automated or semi-automated assembly processes, dramatically improving production efficiency while maintaining production flexibility through the modular design that can be adapted to different sofa configurations.
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, simplifies assembly, and increases the stability and strength of the sofa frame, enabling standardized and efficient production.
Implementation Method 1
a plurality of supporting elastic pieces arranged between the two cross beams
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
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. In addition, when the sofa fabric is assembled, it is only necessary to install a clamping strip at the edge of the sofa fabric, and then clamp the clamping strip with the lower edges of the first side plates of the longitudinal beams, so that the sofa fabric on the seat cushion can be connected to the sofa seat frame. Besides, the invention also provides a sofa base assembly with the sofa seat frame, a sofa and a sofa production and assembly process.