Rack Shelving Tie Bar Assembly for Tool-Free Heavy-Load Support
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Solution Overview
Problem
Existing rack shelving units require complex assembly with tools and often fail to provide adequate support for heavy loads, leading to issues with stability and assembly time.
Innovation Solution
A method of assembling a rack shelving unit using a tie bar and compression fasteners that securely attach to beams without tools, utilizing resilient sides to compress and secure the tie bar to the beam, providing multiple points of contact for increased load capacity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional assembly methods are used with tools and multiple pieces, then the rack shelving unit can be assembled, but the assembly time is excessive and the process is complex
Solution Approach 1:
The rack shelving unit is divided into modular components (side frames, shelves, tie bars, compression fasteners) that can be independently assembled. The compression fastener itself is segmented into resilient sides and compression elements, allowing for tool-free assembly through sequential engagement of parts.
Solution Approach 2:
The compression fastener utilizes resilient sides that automatically compress and secure the tie bar to the beam without requiring external tools. The system is self-servicing as the resilient material provides both the compression force and the locking mechanism, eliminating the need for screwdrivers, wrenches, or other assembly tools.
2Ease of operation
If simple fastening methods are used, then assembly is easier, but the load capacity and stability are insufficient for heavy loads
Solution Approach 1:
The resilient sides of the compression fastener are designed to change their compression parameter dynamically. When assembled, they provide initial compression for easy assembly, then maintain sustained compressive force to secure the tie bar firmly to the beam, ensuring both ease of operation and high load capacity.
Solution Approach 2:
The compression fastener combines resilient material (providing elasticity and compression force) with compression elements (providing structural strength and load-bearing capacity). This composite approach allows the fastening mechanism to be both easy to assemble and strong enough to support heavy loads.
3Productivity
If fewer tie bars are used, then assembly is faster, but the load distribution and stability are inadequate
Solution Approach 1:
Rather than using fewer tie bars, the invention employs multiple tie bars (excessive action) to ensure adequate load distribution and stability. The compression fastener design makes this feasible by enabling rapid assembly of each additional tie bar without tools, so assembly speed is maintained while reliability through multiple load paths is achieved.
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 enables rapid assembly without tools, enhances load capacity, and improves stability by distributing the load evenly across multiple tie bars, reducing the risk of failure and assembly time, while maintaining structural integrity under heavy loads.
Implementation Method 1
resiliently compressing opposing sides of the tie bar toward each other... releasing the resiliently compressed opposing sides of the tie bar to secure the tie bar to the beam
Data Source
AI summary
A method of assembling a rack shelving unit including first and second side frames, at least one beam, and one or more tie bars. The beam can be coupled to the side frames, and the tie bar can be resiliently compressed and retained to secure the tie bar to the beam.