Interlocking Rack Corner Assembly for Tool-Free Seismic Strength
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Solution Overview
Problem
Conventional rack assemblies for mounting electronic components are heavy, awkward to move, and require tools for assembly and disassembly, using thick materials that result in higher energy consumption and shipping costs, while lacking the ability to be easily rearranged or transported.
Innovation Solution
A rack assembly design featuring a base frame, side frames, and gussets with interlocking stubs and brackets that allow for tool-free assembly and disassembly, using lighter gauge materials, reducing material and energy usage, and providing structural stability through an interlocking design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If thick gage material is used to achieve desired strength, then structural strength is improved, but weight increases and energy consumption increases
Solution Approach 1:
The rack assembly is divided into multiple modular components including vertical posts, horizontal beams, and corner assemblies that can be independently manufactured and assembled. This segmentation allows each component to be optimized for its specific function while using lighter gauge materials overall, reducing total weight while maintaining structural strength through the distributed modular structure.
Solution Approach 2:
The corner assembly features a nested structure where the gusset is positioned within the corner formed by vertical and horizontal members, with reinforcement elements nested within the gusset structure. This nested arrangement provides structural strength through layered support while minimizing material usage and overall component size, thereby reducing weight.
2Strength
If thick gage material is used to achieve desired strength, then structural strength is improved, but energy consumption increases
Solution Approach 1:
Dividing the rack into modular segments enables each component to be manufactured efficiently with optimized material thickness, reducing the total energy required for production compared to manufacturing a single large structure from thick material. The segmented design allows for standardized manufacturing processes that consume less energy.
Solution Approach 2:
The design transitions from using uniformly thick gage material throughout the entire rack structure to using varying thicknesses optimized for each component's specific structural requirements. This parameter change allows thinner, lower-energy materials to be used in non-critical areas while maintaining strength where needed, overall reducing energy consumption.
3Stability of the object's composition
If conventional rack assemblies are designed for strength, then structural stability is improved, but ease of assembly deteriorates due to requirement for tools
Solution Approach 1:
The rack is segmented into pre-assembled corner units that include integrated gussets and reinforcement elements. These modular corner assemblies can be easily attached to beam sections using simple connection mechanisms that do not require tools, while the internal segmented structure maintains structural stability through distributed load paths.
Solution Approach 2:
The corner assemblies are designed with self-aligning features and snap-fit connections that allow the components to self-assemble without requiring external tools or complex alignment procedures. The reinforcement elements are pre-positioned within the gusset structure, allowing the entire corner assembly to be installed as a single unit that automatically achieves structural stability.
4Stability of the object's composition
If conventional rack assemblies are designed for strength, then structural stability is improved, but device complexity increases
Solution Approach 1:
The complex reinforcement structures are segmented and pre-integrated into modular corner assemblies during manufacturing. This segmentation simplifies the final assembly process, as the reinforcement elements are already in their correct positions within the corner units, eliminating the need for complex on-site assembly procedures while maintaining structural stability.
Solution Approach 2:
Multiple functional elements including gussets, reinforcement bracing, and connection interfaces are merged into single integrated corner assemblies. This merging reduces the total number of separate components that need to be handled and assembled, simplifying the overall device complexity while maintaining all necessary structural stability features within the integrated unit.
Data Source
AI summary
A rack assembly includes a base frame having a base member, a lateral brace along a first edge of the base member, and a vertical stub extending upward from a corner of the base member, the vertical stub including first and second stub walls oriented substantially perpendicularly to each other; a side frame preferably including a generally U-shaped vertical bracket; and a preferably generally U-shaped gusset having an upper portion and a lower portion in which the lower portion is substantially parallel to and offset with respect to the upper portion. The upper portion of the gusset is attached to the vertical bracket so as to form a first gap between the gusset and a corresponding vertical bracket wall, and a second gap is formed between another bracket wall and the lower portion of the gusset, the gaps being adapted to receive the vertical stub walls.