Hanger Hooks for Cable Tray Rods
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Solution Overview
Problem
Conventional hanger designs for supporting objects on vertical support rods, such as cable tray, are cumbersome and time-consuming due to the need for wide openings to accommodate different rod sizes, requiring multiple nuts and washers for secure attachment.
Innovation Solution
A hanger design featuring a hanger body with two sets of hooks of different dimensions to accommodate support rods of varying diameters, along with field-bendable tabs and a nut-receiving gap for secure and adjustable attachment, allowing for easy installation and adjustment using a single nut.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wide opening is used to accommodate different rod sizes, then adaptability is improved, but installation time and complexity increase
Solution Approach 1:
The hanger body is divided into multiple opening sizes (first opening, second opening, third opening) with different dimensions. Each opening is specifically sized to accommodate different rod diameters, eliminating the need for a single large opening and reducing installation complexity.
Solution Approach 2:
Different portions of the hanger body have different opening characteristics tailored to specific rod sizes. The first opening accommodates larger rods, while the second and third openings accommodate smaller rods, providing locally optimized fit for each application.
2Reliability
If multiple nuts and washers are used to secure the hanger, then reliability is improved, but device complexity increases
Solution Approach 1:
The first nut and second nut are integrated into a single unit that engages with both the first opening and second opening simultaneously. This merging of fastening components simplifies the assembly process while maintaining secure attachment through multiple engagement points.
Solution Approach 2:
The integrated nut structure serves multiple functions: it secures the hanger to the rod, engages with different opening sizes, and provides adjustable positioning. This multi-functional design eliminates the need for separate washers and multiple nuts.
3Adaptability or versatility
If a large opening is used to receive the largest rod size, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
Instead of creating one large opening that can accommodate all rod sizes, the hanger body is segmented into multiple smaller openings of specific dimensions. Each opening is optimized for particular rod sizes, making the manufacturing process more precise and less complex.
Solution Approach 2:
The opening dimensions are changed across multiple discrete values (first opening, second opening, third opening) rather than using a single large dimension. This parameter differentiation allows for optimized manufacturing of each opening size while maintaining overall adaptability.
Data Source
AI summary
A hanger for hanging an object from a generally vertical support rod includes a hanger body, a first set of one or more hooks on the hanger body defining a first hook-defined recess, and a second set of one or more hooks on the hanger body defining a second hook-defined recess. The first and second hook-defined recesses have different transverse dimensions for receiving support rods having respective first and second different diameters.