Quick assembly furniture
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Solution Overview
Problem
Conventional furniture assembly requires tools, leading to assembly difficulties due to varying screw sizes and positions, and results in instability during reassembly due to dimensional changes.
Innovation Solution
A quick assembly furniture system using slabs with positioning pins and assembly grooves, where the pins have a knob that moves through a sliding rail with a large and small diameter portion, allowing for tool-free assembly and disassembly without affecting precision or stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional furniture uses screws and bolts for assembly, then the furniture can be assembled and disassembled, but tools are required and assembly becomes difficult due to varying screw sizes and positions
Solution Approach 1:
The patent extracts the knob from the positioning pin to form a separate handling element. This extracted knob serves as a dedicated interface for manual manipulation, allowing users to easily grip and move the positioning pin without requiring any assembly tools. The knob is specifically designed to be engaged by fingers for pushing the pin into the assembly groove, directly solving the tool requirement issue.
Solution Approach 2:
The positioning pin with its protruding knob is designed to be self-manipulable by users. The knob's dimensions and shape are optimized for direct human handling, enabling users to perform assembly operations themselves without external tools. This self-service design eliminates the need for screwdrivers or other assembly implements, making the assembly process accessible to ordinary users.
2Stability of the object's composition
If conventional furniture uses screws for assembly, then connection is achieved, but dimensional changes occur during disassembly leading to instability during reassembly
Solution Approach 1:
The positioning pin is pre-equipped with a protruding knob that extends beyond the pin body. This preliminary configuration ensures that the handling element is already in place before assembly begins, eliminating the need for post-assembly adjustments. The knob's predetermined position and dimensions guarantee consistent engagement with the assembly groove, maintaining precision across multiple assembly cycles without dimensional changes.
Solution Approach 2:
The patent changes the physical parameters of the connection mechanism by using a positioning pin with a specific knob diameter (0.8-1.2 times the pin diameter) and a controlled protrusion length (0.5-1.5 times the pin diameter). These parameter specifications ensure that the knob engages reliably with the assembly groove while maintaining consistent positioning. The standardized parameters prevent dimensional variations during disassembly and reassembly, preserving assembly precision and stability.
3Stability of the object's composition
If furniture is assembled and fixed, then structural stability is achieved, but space for storage and transportation increases
Solution Approach 1:
The furniture is segmented into multiple slabs that can be easily separated using the positioning pin and assembly groove mechanism. Each slab remains structurally stable when connected but can be quickly disconnected by removing the positioning pins. This segmentation allows the furniture to occupy minimal storage space when disassembled while maintaining full structural integrity when assembled, directly addressing the space efficiency requirement.
4Adaptability or versatility
If furniture needs to be disassembled and reassembled multiple times, then flexibility is improved, but assembly precision deteriorates due to reaming and dimensional changes
Solution Approach 1:
The positioning pin is pre-configured with a protruding knob that serves as a permanent, reusable handling element. This preliminary design ensures that every time the furniture is disassembled and reassembled, the same precise engagement point is used. The knob's consistent dimensions and position guarantee that assembly precision is maintained across multiple cycles, preventing the deterioration that would otherwise occur with repeated disassembly and reassembly.
Solution Approach 2:
The patent establishes specific parameter ranges for the positioning pin system: knob diameter (0.8-1.2 times pin diameter), protrusion length (0.5-1.5 times pin diameter), and groove dimensions. These standardized parameters ensure consistent geometric relationships that prevent dimensional changes during repeated assembly cycles. The controlled parameters maintain assembly position consistency while allowing unlimited flexibility for disassembly and reassembly operations.
Data Source
AI summary
A quick assembly furniture is provided and comprises at least three slabs, each of the slabs has two surfaces and at least three edges, the slabs are linked to each other, the edges of one of the slabs are linked to the surfaces of others so as to form a three-dimensional configuration; and a plurality of assembly units, respectively including a positioning pin and an assembly groove; wherein during assembly, the positioning pins are clamped and fixed within the assembly groove. The disassembly and assembly of the furniture can be quickly completed without the use of tools.