Nestable Cable Radius Limiter for Bend Protection
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Solution Overview
Problem
Telecommunications systems face challenges in efficiently managing cables, particularly in preventing damage from excessive bending, which can lead to signal loss and fiber breakage, and require adaptable solutions for various routing requirements.
Innovation Solution
A cable radius limiter arrangement with a mounting structure and cable retaining structure that can be oriented in multiple configurations, including a stacked arrangement and a spool formation, to protect cables from excessive bending and facilitate adaptable cable management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cable radius limiters are designed with fixed mounting orientations, then manufacturing and installation are simplified, but adaptability to various cable routing requirements is reduced
Solution Approach 1:
The radius limiter incorporates a mounting structure with multiple mounting orientations that can be selectively activated. The mounting structure includes mounting elements that can be positioned in different orientations (e.g., first mounting orientation and second mounting orientation) to accommodate various cable routing requirements. This dynamic reconfigurability allows the same device to adapt to different installation scenarios without requiring multiple specialized devices.
Solution Approach 2:
The radius limiter is designed as a universal device that can perform multiple functions through its multi-orientable mounting structure. A single radius limiter unit can be mounted in different orientations to serve different cable management needs, replacing what would traditionally require multiple specialized devices. The cable retaining structure works in conjunction with the multi-orientable mounting structure to provide versatile cable management capabilities.
2Reliability
If cables are allowed to bend freely, then cable routing flexibility is improved, but cable damage and signal loss increase
Solution Approach 1:
The radius limiter employs a curved cable retaining structure that guides cables along a controlled path. The curved geometry of the retaining structure naturally constrains cable bending to follow a safe arc, preventing sharp bends and excessive curvature that would damage the cable. This curved design inherently protects cable integrity while still allowing necessary routing flexibility.
Solution Approach 2:
The radius limiter acts as an intermediary device between the cable and the mounting structure. The cable retaining structure serves as a mediator that interfaces with the cable, providing a controlled bending path that protects the cable from direct contact with rigid mounting surfaces. This intermediary structure allows cable flexibility while preventing damage through controlled geometry.
3Productivity
If multiple radius limiters are mounted back to back to form a spool, then cable management capacity is increased, but device assembly complexity increases
Solution Approach 1:
The patent describes mounting radius limiters back to back in a nested arrangement to form a spool structure. The second radius limiter is mounted on the back of the first radius limiter, creating a compact nested configuration. This nesting approach allows multiple functional units to be combined in a space-efficient manner, increasing cable management capacity while maintaining a compact overall form factor.
Solution Approach 2:
Multiple radius limiters are merged into a single integrated assembly by mounting them back to back. The combined structure functions as a unified cable management system that can handle multiple cables simultaneously. The merging of individual radius limiter units creates a spool-like structure that provides enhanced cable management capacity while distributing the functional capabilities of multiple units into a single compact assembly.
Data Source
AI summary
A cable radius limiter having a radius limiting surface that prevents damage to cables due to excessive bending. The cable radius limiter includes mounting structure and cable retaining structure arranged such that the limiter can be operably oriented and mounted to a mounting bracket in both a first mounting orientation and a second mounting orientation. Two radius limiters can be mounted together to form a cable spool.


