Cable Securing Device with Tapered Barrel and Compression Jaws

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Solution Overview

Problem

Existing methods for pulling cables through conduits, such as using fish tapes, often result in detachment issues and require costly and time-consuming conduit removal, especially when dealing with insulated cables.

Innovation Solution

A cable securing device comprising a retaining cap, compression member, barrel with a tapered interior, and fastening device that securely engages the cable by compressing and expanding to maintain grip during pulling, minimizing detachment risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional fish tape methods are used to pull cables through conduits, then the cable pulling process can be initiated, but the fish tape may separate from the cable during pulling, requiring costly and time-consuming conduit removal and reinstallation

Engineering Contradiction:
Improveconnection reliabilityVSAvoidtime for conduit removal and reinstallation
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The device divides the cable securing function into multiple independent components: a fastening device with jaws that grip the cable, a compression member that actuates the fastening, and a retaining cap that houses the mechanism. This segmentation allows each component to perform its specific function reliably without the entire system failing if one part encounters resistance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastening device is pre-configured with loose jaws that automatically engage the cable before pulling begins. The compression member is pre-loaded to provide initial gripping force, ensuring the cable is securely held from the moment insertion starts, preventing separation during the pulling process.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If fish tape is used to secure cable ends for pulling, then cable pulling can be attempted, but the method does not work properly for insulated cables and may require electrical tape application which adds complexity

Engineering Contradiction:
Improvecompatibility with different cable typesVSAvoidadditional steps for insulated cable preparation
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fastening device is designed to universally accommodate different cable types including insulated and non-insulated cables. The jaws can grip various cable surfaces without requiring pre-preparation steps, making the device adaptable to both shielded and unshielded cables, fiber optics and copper wires, eliminating the need for separate procedures for different cable types.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If conventional cable pulling methods are used, then the process can be initiated, but detachment during pulling requires conduit removal which increases cost and time

Engineering Contradiction:
Improvecable installation efficiencyVSAvoidtime for conduit removal and reinstallation
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The barrel is designed with a tapered interior surface that curves inward toward the fastening device. This curved geometry guides the cable smoothly into the gripping jaws and maintains alignment during insertion, preventing binding or misalignment that could cause detachment and require costly conduit removal.

Inventive Principle:
Principle #14Spheroidality (Curvature)

4Reliability

If a secure cable gripping mechanism is implemented, then detachment during pulling is minimized, but the device structure becomes more complex with multiple components

Engineering Contradiction:
Improvecable grip securityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The device merges multiple functions into a compact integrated assembly: the fastening device with gripping jaws, the compression member for actuation, and the retaining cap for housing are combined into a single unit that fits within the conduit. This consolidation provides secure cable gripping while minimizing the overall device complexity and space requirements.

Inventive Principle:
Principle #5Merging (Combining)

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 device ensures secure cable engagement and minimizes detachment during the pulling process, allowing for efficient cable installation without damaging the conduit or cable, thus reducing costs and time.

Implementation Method 1

a compression member, both the compression member and fastening device being capable of axial movement within the barrel along the barrel's axis

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a barrel or tube with a tapered interior wall... an internal taper at the other end... forcing the jaws of the fastening device to securely engage the cable as the fastening device extends down the taper of the barrel

Methodology Applied
Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS11159001B2Cable securing device
Publication Date: 2021.10.26 EVERFLOW SUPPLIES LLC
  • US11159001B2 patent drawing
  • US11159001B2 patent drawing
  • US11159001B2 patent drawing

AI summary

A cable securing device facilitates secure connection to a cabling end, and employs a retaining cap, a compression member, a barrel with a tapered interior wall and a fastening device.