Strut Channel Clip Structure for Support Rod Buckling Resistance
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Solution Overview
Problem
Long hanger rods used in suspended equipment are prone to buckling under compression loads due to their high slenderness ratio, and existing methods for stiffening these rods require multiple hardware pieces and specialized tools for installation, increasing costs and installation time.
Innovation Solution
A one-piece metal clip with a U-shaped design that securely engages a strut channel and support rod, allowing for tool-free installation and providing resistance to lateral movement, thereby reducing the effective length of the rod and enhancing its compression load capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple hardware pieces and specialized tools are used for mounting the stiffening element, then the mounting security and reliability are improved, but the device complexity and installation time increase
Solution Approach 1:
The patent combines multiple separate hardware components (clamp body, locking mechanism, mounting elements) into a single integrated one-piece clip structure. This merging eliminates the need for multiple discrete parts and specialized assembly tools while maintaining secure mounting through the unified design that directly engages both the rod and stiffening element simultaneously.
Solution Approach 2:
The one-piece clip is designed to be self-installing without requiring specialized tools. The clip's inherent flexibility allows it to be manually manipulated into position, and its contoured central portion automatically engages the rod while the arms secure the stiffening element, enabling installation by simple manual operation rather than requiring complex tooling.
2Ease of operation
If a one-piece clip design is used, then the ease of installation and reduction of installation time are improved, but the gripping strength and security may be reduced
Solution Approach 1:
The clip's material properties and geometric parameters are optimized to achieve the right balance between flexibility for easy installation and rigidity for strong gripping. The clip is made from material with appropriate thickness and elastic properties that allow it to flex during manual installation yet maintain sufficient structural strength to securely hold the stiffening element against the rod under operational loads.
Solution Approach 2:
Different portions of the one-piece clip have different functional properties: the central contoured portion is designed to flex and conform to the rod for easy installation, while the arms are designed with specific geometries to provide strong gripping force on the stiffening element. This local differentiation of properties within the unified structure enables both ease of installation and adequate gripping strength.
3Adaptability or versatility
If the rod length is increased to span greater distances, then the adaptability and coverage are improved, but the resistance to buckling under compression load decreases
Solution Approach 1:
The patent applies segmentation by introducing intermediate stiffening elements at specific intervals along the length of the support rod. These stiffening elements divide the long rod into shorter effective segments, reducing the unbraced length of each segment and thereby increasing the rod's overall buckling resistance while maintaining the ability to span greater total distances through multiple segmented sections.
Data Source
AI summary
A clip for attachment of a walled strut channel around a support rod to provide increased stiffness for the support rod by insertion of the clip within the strut channel to provide engagement of the support rod with an interior surface of the strut channel has a pair of flexible arms spaced apart to provide biased contact against opposed walls of the strut channel upon insertion. The arms terminate at their distal ends in a pair of insertion handles with the arms being joined together by a generally u-shaped central clip portion having side walls that at least partially conform to a circumference of the support rod. The central clip portion biases the support rod against the strut channel's interior surface, maintaining the support rod in a fixed position against the strut channel.