Displaceable Cable Management Assembly for Safe Chamber Access
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Solution Overview
Problem
Accessing cables in enclosed chambers, such as manhole chambers, is difficult and can result in damage due to the need to open or remove junction boxes, which can strain or bend cables beyond their tolerance.
Innovation Solution
A cable management system with a fixed and displaceable member, guided by a mechanism that allows for controlled displacement of cables, using a guide mechanism and displacement mechanism to manage cable slack and prevent damage, featuring cable fixing formations and a flexible conduit to protect cables during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the junction box is opened or removed to access cables, then cable accessibility is improved, but cable damage risk increases due to pulling or bending beyond tolerance
Solution Approach 1:
The system divides the junction box into a fixed outer portion and a movable inner portion (displaceable member). The displaceable member can be independently moved to access cables without removing the entire junction box, allowing maintenance personnel to access cables by displacing only the inner compartment containing the cables, thus avoiding cable strain that would occur with complete removal.
Solution Approach 2:
The patent introduces a cable guide mechanism as an intermediary element between the displaceable member and the cables. This guide mechanism controls the displacement path and limits the movement range, ensuring that cables are not pulled or bent beyond their tolerance during the displacement operation, thereby preventing cable damage while enabling access.
2Ease of repair
If the junction box is removed for cable access, then maintenance and upgrades become easier, but cable strain occurs due to pulling or bending
Solution Approach 1:
The system transforms the static junction box into a dynamic structure with a displaceable member that can move relative to the fixed portion. This dynamic design allows the inner compartment to be displaced outward for maintenance access, and the movement is controlled by the guide mechanism to prevent excessive cable strain, enabling easy repair without harmful cable deformation.
Solution Approach 2:
The patent changes the positional parameter of the displaceable member relative to the fixed portion. By controlling the displacement distance and path through the guide mechanism, the system allows sufficient movement for maintenance access while maintaining the cable strain within acceptable limits, thus achieving ease of repair without cable damage.
3Ease of operation
If a displaceable member is introduced to improve cable access, then cable accessibility improves, but device complexity increases
Solution Approach 1:
The displaceable member is nested within the fixed portion of the junction box, forming a compact layered structure. The outer fixed portion provides structural support and mounting interfaces, while the inner displaceable member contains the cables and can be independently moved. This nested arrangement improves cable accessibility without requiring a completely separate external mechanism, thus limiting the increase in overall system complexity.
Data Source
AI summary
A cable management system for an enclosed chamber includes a fixed member which has attachment formations associated therewith for attachment to the enclosed chamber and a displaceable member which is displaceable relative to the fixed member between at least an extended condition and a retracted condition and which has cable fixing formations. The cable management system includes a guide mechanism for guiding the relative displacement of the displaceable member relative to the fixed member, wherein the cable fixing formations are configured to fix at least one cable at a first point to the displaceable member, such that displacement of the displaceable member causes the cable to be displaced therewith. The cable management system may also form part of a cable management assembly which includes an enclosed chamber to which the fixed member is attached or attachable.