Spring-Loaded Cable Stripper Blade Mechanism

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Solution Overview

Problem

Existing cable strippers often require adjustments for different wire sizes and can damage conductors or use hazardous tools like razors for insulation removal, failing to provide a safe and efficient method for stripping smaller circuit sizes without scoring.

Innovation Solution

A cable stripper design featuring a stripper body, trigger assembly, and blade that allows for easy insertion and spinning around the cable to lift insulation without touching the conductor, using a spring-loaded mechanism to ensure a clean cut and prevent conductor scoring, covering sizes #8 AWG through 1/0 AWG without adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional wire strippers with notches are used, then insulation can be removed from wires, but the tool requires adjustments for different wire sizes and can damage conductors

Engineering Contradiction:

Improveease of insulation removalVSAvoidadaptability to different wire sizes

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent employs a spring-loaded blade mechanism where the blade extends into the cable opening to a specific depth that can be adjusted or designed to match different cable sizes. The spring force allows the blade to press the cable against the opening with controlled pressure, accommodating various wire sizes from #8 AWG through 1/0 AWG without requiring manual adjustment of the tool itself.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If traditional wire strippers are used, then insulation can be removed, but the conductors can be damaged or scored

Engineering Contradiction:

Improveinsulation stripping efficiencyVSAvoidconductor damage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The spring-loaded blade mechanism performs a preliminary controlled press action that positions the blade to cut only the insulation layer. The blade extends into the cable opening and presses the cable against it, creating a clean cut before the insulation is pulled away. This preliminary controlled cutting action prevents the blade from contacting or scoring the conductor beneath the insulation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The cable opening acts as an intermediary structure between the blade and the conductor. The blade presses the cable against the opening, using the opening as a support surface to achieve the cut. This intermediary prevents direct contact between the blade and the conductor, eliminating the risk of conductor scoring while maintaining cutting effectiveness.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of manufacture

If razors or knives are used for insulation removal, then insulation can be stripped, but hazardous tools are required

Engineering Contradiction:

Improvesimplicity of insulation strippingVSAvoidsafety hazards

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent employs a replaceable or disposable blade mechanism that can be easily replaced when dull or damaged. The spring-loaded blade is designed as a simple, inexpensive component that can be quickly swapped out, eliminating the need for hazardous reusable tools like razors or knives. This approach maintains simplicity of operation while significantly improving safety.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 provides a safe and efficient method for stripping cable insulation across various sizes, eliminating the need for hazardous tools and preventing conductor damage, ensuring a clean and nick-free strip.

Implementation Method 1

The trigger assembly may be spring loaded to press the cable against the blade and extend the blade into a cable opening in the apparatus.

Methodology Applied

Scientific EffectSpring-loaded mechanism: Spring

Data Source

PatentUS10418796B2Cable stripper

Publication Date: 2019.09.17 SOUTHWIRE CO LLC

AI summary

A cable stripper may be provided. The cable stripper may comprise a stripper body, a trigger assembly, a cable support body, and a blade. The trigger assembly may be slidably engaged within the stripper body. The trigger assembly may comprise a trigger assembly block. The cable support body may be attached to the stripper body. The blade may be attached to a front of the stripper body and enclosed by the cable support body. The blade may extend into a cable opening in the apparatus. The trigger assembly block may press a cable against the blade. The cable may be in the cable opening. The blade may extend into a jacket of the cable without extending to a conductor of the cable.