Mounting Assembly for Cable Tray Sheave Roller
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Solution Overview
Problem
Current cable pulling accessories often require loose hardware, repetitive installation processes, and adjustments for different cable tray sizes, making them cumbersome and inefficient.
Innovation Solution
A mounting assembly with moveable first and second housing parts that attach to cable tray rungs, featuring a lock mechanism and rotatably attached sheave roller for easy installation and disengagement, accommodating various tray sizes and spacings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If loose hardware (screws and nuts) is used to fasten cable pulling accessories, then the attachment can be securely fastened, but the installation process becomes cumbersome due to risk of loss, dropping, and requiring extra hardware or hands
Solution Approach 1:
The mounting assembly merges the housing parts and fastening mechanism into a single integrated unit that attaches to the cable tray as one component, eliminating the need for separate screws and nuts. The housing parts work together with the cam lock mechanism to provide secure attachment without loose hardware.
Solution Approach 2:
The cam lock mechanism provides self-contained fastening functionality within the mounting assembly, where the locking action is performed by the mechanism itself rather than requiring separate fasteners. The design allows the mounting assembly to secure itself to the cable tray through the cam lock's mechanical action.
2Reliability
If screw-driven clamps are used to attach cable pulling accessories, then the attachment can be securely fastened, but the installation requires handles and repetitive twisting motion making it time-consuming
Solution Approach 1:
The cam lock mechanism allows the installer to quickly engage the locking action in a single motion, skipping the repetitive twisting required by screw-driven clamps. The cam lock's geometry enables rapid engagement and disengagement without repeated rotational movements.
3Reliability
If cam locks are used to attach cable pulling accessories, then the attachment can be securely fastened, but the settings must be adjusted for different tray sizes reducing versatility
Solution Approach 1:
The mounting assembly incorporates moveable housing parts that can adjust their position and configuration to accommodate different cable tray sizes and spacings. The housing parts can be positioned at various distances from each other to fit different tray widths, making the assembly adaptable to multiple tray configurations.
Solution Approach 2:
The mounting assembly is divided into separate first and second housing parts that can be independently positioned and adjusted. This segmentation allows the distance between housing parts to be modified to match different cable tray spacings, providing versatility across various tray sizes.
4Reliability
If traditional mounting methods with multiple components are used, then the attachment can be securely fastened, but the installation and disassembly processes become complex and time-consuming
Solution Approach 1:
The mounting assembly combines multiple fastening functions into a single integrated mechanism where the housing parts, cam lock, and locking features work together as one unit. This merging simplifies the mounting process by eliminating the need to handle and assemble multiple separate components.
Data Source
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AI summary
A mounting assembly is provided for mounting a sheave roller to a ladder-type cable tray. The cable cables can be laid on the cable tray for routing through a building. The mounting assembly includes first and second housing parts which are moveable relative to each other. The housing parts are attached to respective rungs of the cable tray. A lock prevents the relative movement of the housing parts relative to each other once the mounting assembly is engaged with the cable tray. The sheave roller is rotatably attached to the one housing part. This quickly and easily installs the sheave roller on the cable tray.