Segmented Annular Gland Chuck for Cable Termination
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Solution Overview
Problem
Existing cable connectors damage the cable jacket and conductor when securing cables due to their rigid nature, and require multiple sizes to accommodate various diameters, leading to inefficiencies in storage and usage.
Innovation Solution
An annular segmented gland chuck with deflectable chuck segments that can be removably attached to an annular base, providing a modular design that accommodates different cable diameters while distributing compressive force to prevent damage, and ensuring a secure grip without damaging the cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a solid rigid chuck is used to compress and secure the cable, then the cable is restrained effectively, but the cable jacket and conductor are permanently damaged
Solution Approach 1:
The chuck is divided into multiple circumferentially spaced segments that can move independently. Each segment deflects individually to engage the cable, distributing the compressive force across multiple contact points rather than concentrating it in a single rigid structure, thereby preventing damage to the cable jacket and conductor while maintaining effective restraint
Solution Approach 2:
The chuck segments are made deflectable about base hinges, transitioning from a static rigid structure to a dynamic one that can adapt its shape. When the compression nut is tightened, the segments deflect circumferentially towards the axis to engage the cable, then maintain a controlled compressive force without permanently deforming the cable, achieving both secure restraint and cable protection
2Adaptability or versatility
If multiple chuck sizes are purchased and stocked to suit a wide range of cable diameters, then adaptability to different cables is improved, but device complexity and inventory requirements increase
Solution Approach 1:
The chuck is designed with segments of varying lengths that can be selectively removed to accommodate different cable diameters. A single chuck body can serve multiple functions by configuring different numbers and combinations of segments, eliminating the need to purchase and stock multiple specialized chucks for different cable sizes
Solution Approach 2:
The chuck is divided into removable segments that can be selectively assembled in different configurations. By removing specific segments, the same chuck can adapt to accommodate cables of various diameters, providing versatility without requiring multiple complete chuck assemblies
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for efficient and damage-free cable termination across a range of diameters with a single connector, reducing the need for multiple sizes and minimizing tooling investment, while ensuring strain relief and environmental sealing.
Implementation Method 1
each the chuck segment being axially deflectable about a base hinge which is perpendicular to the axis and being circumferentially deflectable towards the axis about a segmented hinge parallel to the axis
Implementation Method 2
a compression nut attachable to the cable egressing end
Data Source
AI summary
The invention provides a connector for terminating an electrical cable, including: a connector body having a receiving and an egressing end, axially bored therethrough; a compression nut attachable to the cable egressing end; and an annular segmented gland chuck for engagement with the cable for securing the cable within the body; the segmented chuck including an annular base and a plurality of circumferentially spaced chuck segments extending from the base, each the chuck segment being axially deflectable about a base hinge perpendicular to the axis and circumferentially deflectable towards the axis about a segmented hinge parallel to the axis.