Modular Corner Joint Assembly for Tool-Free Heavy-Duty Stands
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Solution Overview
Problem
Existing stands for indoor gardening and aquatics require tools or hardware for assembly and disassembly, are not sturdy enough to support heavy loads, and are not resistant to water damage, making them unsuitable for ebb and flow gardening and aquatics applications, especially for users with disabilities.
Innovation Solution
A modular stand with four frame rails and legs that interlock without fasteners, allowing for easy assembly and disassembly, and featuring cross supports for increased loading capacity, which can be used to support plant trays or fish tanks, providing 360-degree access and mobility without the need for tools or hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional stands with fasteners and hardware are used, then assembly strength and structural stability are improved, but assembly complexity and tool requirements increase
Solution Approach 1:
The stand is divided into modular components (legs, cross members, supports) that can be independently assembled and disassembled. Each leg contains integrated receiving structures that accept cross members and supports without requiring separate fasteners, enabling tool-free assembly while maintaining structural integrity through precise geometric interlocking.
Solution Approach 2:
The patent integrates multiple functions into single components. Each leg combines structural support, connection interface, and alignment features into one element. The receiving structures within legs merge the functions of traditional separate fasteners, joints, and alignment mechanisms, eliminating the need for additional hardware while ensuring strong, stable connections.
2Ease of manufacture
If wood or wood composite materials are used, then ease of manufacture and cost are improved, but water resistance and durability in aquatic environments deteriorate
Solution Approach 1:
The stand employs composite construction combining aluminum extrusions for the frame structure with plastic or resin components for water-exposed elements. This composite approach provides the structural strength and rigidity of metal while incorporating water-resistant materials in areas subject to moisture, ensuring durability in both gardening and aquatic applications without sacrificing manufacturability.
3Strength
If heavy-duty fasteners and hardware are used, then structural stability and load-bearing capacity are improved, but ease of assembly for users with disabilities deteriorates
Solution Approach 1:
The stand features self-aligning and self-locking mechanisms built into the leg structures. Cross members and supports automatically align with receiving structures in the legs and lock into place through simple insertion motions, eliminating the need for tools, specialized skills, or significant physical strength. Users with disabilities can easily assemble and disassemble the stand through intuitive, tool-free operations.
4Volume of moving object
If the stand is designed for compact storage when disassembled, then storage efficiency is improved, but structural rigidity when assembled may deteriorate
Solution Approach 1:
The stand is segmented into discrete modular components that can be completely separated for compact storage. When assembled, these same segments connect through robust geometric interlocking mechanisms that restore full structural rigidity. The segmentation enables both compact disassembled storage and stable assembled configuration, with no compromise in rigidity when properly assembled.
Data Source
AI summary
A corner joint for use in a modular portable stand that can be quickly and easily assembled and disassembled by one person without using any tools or hardware.