Optical Fibre Tap with Internal Bypass Member
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Solution Overview
Problem
Fiber optic network installations in building complexes face issues with signal transmission due to curved cable portions and aesthetics, as cables with low radii of curvature can harm signal quality and are aesthetically unpleasing.
Innovation Solution
A branching device with a bypass member that supports the cable inside a conduit, minimizing external curvature and improving aesthetics by keeping the cable support inside the duct, along with optical fiber supports that maintain fibers with large radii or straight portions, allowing for efficient signal transmission and hidden installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable exits the chute through openings to connect to the junction box, then the cable can be connected and extracted, but the cable develops pronounced curvatures with low radii that harm signal transmission
Solution Approach 1:
The bypass member is nested within the chute structure, allowing the cable to pass through the bypass member which is itself contained within the chute. This nesting arrangement enables cable extraction while maintaining the cable path inside the chute, avoiding external curvatures and preserving signal transmission quality.
2Ease of operation
If the cable exits the chute through openings, then cable connection is enabled, but the aesthetics of the chute are degraded
Solution Approach 1:
The bypass member extracts the cable routing function from the traditional opening-based system. By removing the need for openings in the chute and replacing them with an internal bypass mechanism, the cable can be connected while the chute maintains its intact, aesthetic appearance.
3Ease of manufacture
If the cable is supported outside the duct, then installation is simpler, but the cable support is visible and aesthetics are degraded
Solution Approach 1:
The bypass member is nested within the duct structure, allowing cable support functionality to be provided while remaining hidden inside the duct. This eliminates the need for visible external supports while maintaining installation simplicity through the integrated design.
4Ease of manufacture
If the fiber support is located outside the duct, then installation is easier, but the fiber has pronounced curvatures that harm signal transmission
Solution Approach 1:
The fiber support is nested within the duct structure, allowing the fiber to be supported in a location that maintains large radii of curvature or straight portions. This internal positioning prevents pronounced curvatures while keeping the installation process simple through the integrated bypass design.
Data Source
Figure 1~2
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Figure 6~7
AI summary
The assembly (13a1) comprises a conduit (14a) and an optical fibre tap (16a1). The tap (16a1) comprises a support member (30) for a fibre-optic cable (13) and at least one optical fibre support member (32, 34). In addition, the tap (16a1) includes means (36) for positioning the tap relative to the conduit in the position such that the cable support member (30) extends along the inside of the conduit (14a).