Modular Shelving Tool-Free Assembly Coupling Mechanism
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Solution Overview
Problem
Conventional modular shelving systems often require tools for assembly and disassembly, limiting user flexibility and aesthetics, especially when used in domestic settings with metallic tubes and wooden boards.
Innovation Solution
A modular shelving system utilizing externally located coupling elements divided into two identical halves that fit snugly into holes in the shelves and tubes, allowing for tool-free assembly and disassembly, and providing structural reliability and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fasteners and pins are used to mount shelves, then structural reliability is improved, but assembly complexity and time increase
Solution Approach 1:
The coupling element is divided into two separate halves that can be independently assembled onto the tube from opposite sides. This segmentation allows the complex fastening function to be distributed across multiple simple components, reducing assembly complexity while maintaining structural reliability through the combined action of both halves.
Solution Approach 2:
The coupling element halves are designed to self-align and self-secure through the tongue and groove mechanism. When the shelf is inserted, the coupling elements automatically engage with the tube and lock into position without requiring external tools or complex assembly procedures, thus reducing assembly complexity while ensuring reliable fixation.
2Reliability
If tools are required for assembly, then structural reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The coupling element is designed to perform its own fastening function without external tools. The two halves are manually positioned on the tube, and when the shelf is inserted, the components self-lock through the tongue and groove mechanism, eliminating the need for tools while maintaining reliable structural connection.
Solution Approach 2:
The tongue and groove mechanism acts as an intermediary that translates the simple action of inserting the shelf into a secure locked connection. This intermediary mechanism enables tool-free assembly while ensuring reliable fixation, as the groove receives and secures the tongue automatically during the insertion process.
3Reliability
If fixing means are exposed, then structural reliability is improved, but aesthetic appeal deteriorates
Solution Approach 1:
The coupling elements are extracted from the hidden interior of the tube and positioned externally on the outer surface. This extraction allows the fastening mechanism to be concealed within the shelf structure or covered by decorative elements, maintaining aesthetic appeal while preserving structural reliability through the secure tongue and groove connection.
Solution Approach 2:
The coupling elements are strategically positioned on the external surface of the tube where they can perform their structural function while being less visually prominent. The design allows different parts of the shelving system to have different visual characteristics, with coupling elements placed in locations that minimize their visual impact on the overall aesthetic appearance.
4Manufacturing precision
If shelves are fitted into tubes with predefined positions, then manufacturing precision is improved, but adaptability deteriorates
Solution Approach 1:
The coupling element is divided into two halves that can be independently positioned on the tube at different locations. This segmentation enables the shelving system to be configured with shelves at various heights and positions, providing modular flexibility while maintaining precise positioning through the standardized coupling mechanism designed for accurate alignment with the tube.
Data Source
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AI summary
Modular shelving comprising at least one shelf (1) supported by at least one tube (2), wherein said shelf (1) is coupled to said tube (2) by means of a coupling element (4) which is arranged externally in said tube (2) and internally in a hole (3) passing through the shelf (1), where each coupling element (4) is divided lengthwise into two identical halves which are tongue and groove coupled together and, being coupled, can fit snugly into the hole (3) of the shelf (1), whereby a tube (2) supporting the shelf (1) is fitted.