Radiused Cable Guide Preventing Breakage in Raceways
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Solution Overview
Problem
Existing cable raceway systems lack effective solutions to prevent cable breakage and distortion when entering or exiting, as ad-hoc methods often result in sharp bends that can damage cables, and existing attachment devices are costly, inflexible, and not versatile across different raceway types.
Innovation Solution
A modular cable guide with a base and radiused arms and legs that attach to the raceway, preventing sharp bends by directing cables in various directions and securing them to prevent movement, designed to be inexpensive and adaptable to multiple raceway types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cable is run through an opening in the floor of the raceway, then the cable can enter and exit the raceway, but the angle (bend) in the cable can be so substantial as to snap or break the cable
Solution Approach 1:
A cable guide device is introduced as an intermediary component between the raceway opening and the cable. The guide includes a guide surface with a predetermined radius of curvature that mediates the cable's transition from the raceway to the external environment, preventing direct sharp bending while maintaining ease of cable installation and removal.
Solution Approach 2:
The guide surface is designed with a predetermined radius of curvature (R) that is greater than the minimum bend radius of the cable. This curvature ensures that the cable follows a gentle arc rather than a sharp angle, preventing cable breakage while allowing straightforward cable installation and removal.
2Ease of manufacture
If a cable is simply placed over the side of the raceway, then cable installation is simple, but there is nothing preventing the entire cable from being pulled over the side of the raceway, negating the purpose of having a raceway
Solution Approach 1:
The cable guide acts as an intermediary structure that the cable must pass through to exit the raceway. The guide surface with predetermined curvature provides a controlled transition path, preventing the cable from being simply pulled over the side while maintaining installation simplicity. The guide effectively mediates between the raceway containment requirement and the cable exit requirement.
3Reliability
If existing attachment devices are used to prevent cable breakage, then cable protection is provided, but the devices are costly, inflexible, and not versatile across different raceway types
Solution Approach 1:
The cable guide is designed with universal adaptability to work with different raceway types (ladder raceways, wire raceways, tray raceways). The guide surface with predetermined radius of curvature serves multiple functions: protecting cables from breakage, providing controlled cable transition, and accommodating various raceway configurations. This universal design eliminates the need for type-specific attachment devices while maintaining cable protection.
Data Source
AI summary
An exemplary cable guide can be provided that can include a base having a base radius sized to prevent breakage of a cable running over the base. At least two arms can extend from the base in a direction approximately perpendicular to a direction of travel of the cable raceway, the at least two arms having an arm radius sized to prevent breakage of the cable running around the at least two arms. At least two legs can be attached to the base extending in a direction approximately opposite of the at least two arms, the at least two legs having a leg radius sized to prevent breakage of the cable running around the at least two legs.