Bolt-Free Sofa Assembly Using Slider and Latch Connections
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Solution Overview
Problem
Conventional detachable sofas require numerous screws for assembly, making the installation process cumbersome and time-consuming, necessitating tools and excessive energy.
Innovation Solution
A rapidly assembled sofa design featuring a slider mode for connecting armrests and back board, a latch pin mode for lower portions, and an elastic component for securing the seat board, eliminating the need for bolts and enabling easy, fast assembly without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If numerous screws are used for connection, then the structural stability is improved, but the assembly complexity and time consumption increase
Solution Approach 1:
The patent extracts and eliminates the need for numerous screws by introducing a specialized connection structure with guide grooves, sliders, and latch pins that inherently provide both guidance and securing functions, thereby reducing assembly complexity while maintaining stability
Solution Approach 2:
The patent merges multiple functions into integrated components: the guide groove structure combines guidance and positioning functions, while the latch pin structure combines locking and securing functions, replacing the need for separate screws and simplifying the overall assembly process
2Strength
If numerous screws are used for connection, then the connection strength is improved, but the assembly time and energy consumption increase
Solution Approach 1:
The guide groove structure performs preliminary positioning and alignment of components before final securing, ensuring proper placement is achieved automatically during assembly, which reduces the time and effort needed for precise alignment and speeds up the overall assembly process while maintaining connection strength
3Reliability
If bolts are used for connection, then the connection reliability is improved, but the ease of assembly deteriorates
Solution Approach 1:
The connection structure is designed to be self-aligning and self-securing: the guide grooves automatically guide components into correct positions, and the latch pins automatically engage and lock components together without requiring external tools or complex operations, making assembly easy while maintaining reliable connections
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 allows for quick and convenient assembly by a single person, saving time and energy, while maintaining structural stability and a clean, artistic appearance, as the connection mechanism is hidden after assembly.
Implementation Method 1
The seat board and the armrests are pressed against each other through the elastic force of the spring
Implementation Method 2
a spring and a locating ball, the spring and the locating ball are both provided in the clamping cover, one end of the spring is connected with the bottom end of the clamping cover, the other end of the spring is connected with the locating ball
Data Source
AI summary
A rapidly assembled sofa includes left and right armrests, a back board and a seat board. The upper portion on the lateral surface of the back board is connected with the armrests in a slider mode, the lower portion on the lateral surface of the back board is connected with the armrests in a latch pin mode, and the seat board is flexibly fastened to the armrests. The rapidly assembled sofa is advantageous in that a connection mode without any bolt is achieved, and the stability in the case of utilizing a bolt for connection can be achieved; the assembling becomes much easier, more convenient and faster, and both time and energy are saved; the assembling operation can be accomplished by a single person, which is especially suitable for women customers; and the contour is clean and artistic since the connection structure is hidden after assembled.