Assembly Structure Of Sofa Base
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Solution Overview
Problem
Current sofa assembly methods require external machinery and drilling holes, increasing process time and complexity due to the use of bolts for fixing sofa base plates.
Innovation Solution
An assembly structure for a sofa base that uses bolts to fix the mounting frame and supporting legs, with supporting plates welded to the frame and connecting rods, and includes a threaded column and leveling plate for stability on uneven surfaces, along with anti-skid patterns and positioning components for secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bolts are used to fix sofa base plates, then the connection strength is improved, but the assembly process complexity and time increase due to requiring external machinery and pre-drilled holes
Solution Approach 1:
The sofa base is divided into modular components (mounting frame, supporting legs, supporting plates, connecting blocks) that can be assembled independently. The supporting plates are segmented with multiple holes for different fixing methods, allowing flexibility in assembly approaches.
Solution Approach 2:
Instead of using bolts to fix supporting plates to the mounting frame (which requires drilling and external machinery), the patent inverts the approach by welding the supporting plates directly to the frame and using connecting rods with connecting blocks for the leg attachments. This eliminates the need for pre-drilled holes and external drilling machinery.
2Strength
If bolts are used to fix sofa base plates, then the connection strength is improved, but the assembly time increases due to requiring external machinery and pre-drilled holes
Solution Approach 1:
The supporting plates are pre-welded to the mounting frame during manufacturing, eliminating the need for on-site drilling and bolting operations. The connecting blocks are pre-formed with positioning features that guide the assembly process, allowing for rapid attachment of supporting legs without requiring pre-drilled holes or external machinery.
Solution Approach 2:
The patent replaces the mechanical bolt-fixing system with a combination of welding (for permanent strong joints) and a simplified connecting rod/block system (for removable but still strong connections). This substitution eliminates the need for drilling machinery and significantly reduces assembly time while maintaining connection strength.
3Manufacturing precision
If the sofa base is designed for standard assembly, then the manufacturing precision is maintained, but the adaptability to uneven ground decreases
Solution Approach 1:
The supporting legs are designed with adjustable mechanisms that allow dynamic adaptation to uneven ground conditions. The connecting blocks and rods provide flexibility in positioning the legs to compensate for ground irregularities while maintaining the overall structural precision and stability of the sofa base.
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
Facilitates rapid, tool-free assembly and stable placement on uneven surfaces, enhancing assembly efficiency and user convenience while ensuring the sofa's stability and comfort.
Implementation Method 1
a threaded hole is defined at a bottom of each of the supporting legs, a threaded column is threadedly connected with an interior of the threaded hole
Implementation Method 2
a bottom of the threaded column is fixedly connected to a leveling plate... the threaded column is rotatable and is disposed at the bottom of each of the supporting legs
Implementation Method 3
The supporting plates are welded to an inner side of the mounting frame, a connecting rod is fixedly disposed at a side surface of each of the supporting legs
Implementation Method 4
The supporting legs are fixedly connected to a side surface of the mounting frame through bolts
Implementation Method 5
An anti-skid pattern is disposed at the bottom of each of the supporting legs
Data Source
AI summary
An assembly structure of a sofa base, being related to a technical field of sofas, includes a mounting frame, a backrest, and an assembly mechanism. The backrest is disposed on an upper surface of the mounting frame. The assembly mechanism includes supporting legs, supporting plates, and connecting blocks The supporting legs are fixedly connected to a side surface of the mounting frame through bolts, the supporting plates are welded to an inner side of the mounting frame, the connecting blocks are clamped at one end of the mounting frame, and the connecting blocks are fixedly connected to the backrest. The mounting frame is fixedly connected to the supporting legs through a welding mode to form a whole. Meanwhile, the supporting plates are clamped in an interior of the mounting frame, so that the supporting plates are in close contact with a connecting rod.