Magnetic Cutting Torch Guide Structure for Fast, Stable Setup

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Solution Overview

Problem

Operators of oxy-fuel and plasma cutting torches face difficulties in maintaining a straight line of cut due to the bright light emitted, which obscures visual marks, and existing accessories are cumbersome or time-consuming to use, necessitating a need for guides that can be quickly coupled to metal workpieces without mechanical clamps or electromagnets and allow easy shape and size changes.

Innovation Solution

A cutting torch guide system featuring a base structure with a mechanically switched permanent magnet that can be easily attached to a metal workpiece, allowing for interchangeable cutting torch guide structures with predefined shapes, enabling precise guidance of the cutting torch tip without the need for mechanical clamps or electromagnets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If a mechanically switched permanent magnet is used to attach the guide to the metal workpiece, then the attachment and detachment process becomes quick and easy, but the risk of the guide detaching during cutting due to magnetic field interference increases

Engineering Contradiction:
Improveattachment and detachment timeVSAvoidguide attachment stability
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The patent employs a mechanically switched permanent magnet system where the magnetic field strength can be dynamically changed between two states: a first magnetic field strength for secure attachment during cutting, and a second magnetic field strength for easy detachment. This dynamic switching capability allows the guide to be quickly attached and detached while maintaining reliability during the cutting process.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the magnetic field strength parameter of the permanent magnet to achieve different functional states. By switching between a first magnetic field strength (strong attachment) and a second magnetic field strength (weak attachment), the system enables quick attachment and detachment while ensuring stable guide positioning during cutting operations.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If guides with predefined shapes are used to maintain a line of cut, then cutting accuracy improves, but the ability to quickly change guide shape and size decreases

Engineering Contradiction:
Improvecutting line accuracyVSAvoidguide shape and size change capability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent makes the guide system adaptable by enabling the permanent magnet to switch between different magnetic field strengths. This allows the same guide structure to be securely attached for precise cutting operations while also allowing for quick detachment and reconfiguration to different shapes and sizes, thus maintaining both precision and versatility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The guide system is designed to be multi-functional, where a single guide structure can be used with different predefined shapes and sizes. The mechanically switched permanent magnet enables the same guide to be attached and detached easily, allowing operators to switch between different cutting configurations without requiring multiple specialized guides.

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

3Ease of operation

If a mechanically switched permanent magnet with two magnetic field strengths is used, then quick attachment and detachment is achieved, but the device complexity increases

Engineering Contradiction:
Improveguide attachment easeVSAvoidmagnetic switching mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical attachment systems (such as clamps, screws, or electromagnets) with a mechanically switched permanent magnet system. This substitution simplifies the overall device by using magnetic field switching instead of complex mechanical mechanisms, while still achieving easy attachment and detachment through the two magnetic field strength states.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 system enables operators to maintain a precise line of cut with ease, allowing for quick changes in guide shape and size, improving cutting accuracy and efficiency by providing a magnetic attachment mechanism that securely holds the guide in place during the cutting process.

Implementation Method 1

a mechanically switched permanent magnet that is fixed to the top surface of the base structure... and which, when activated, generates a magnetic field to releasably fix the base structure to the metal workpiece

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

The at least one permanent magnet is configured to magnetically couple to a cutting torch guide structure... magnetic attraction between at least one permanent magnet fixed in at least one recess in the channel of the base structure and a guide structure permanent magnet

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS11541473B2Cutting torch guide structure and cutting torch guide system
Publication Date: 2023.01.03 ZIMMERMAN TODD
  • US11541473B2 patent drawing
  • US11541473B2 patent drawing
  • US11541473B2 patent drawing

AI summary

Cutting torch guide structures, systems, and kits include a base structure having a bottom surface and a channel formed in the base structure, a mechanically switched permanent magnet coupled to the base structure and configured to mechanically switch between two magnetic states, and a cutting torch guide structure configured to be releasably received in the channel and magnetically coupled to the base structure by magnetic attraction between a at least one permanent magnet fixed in at least one recess in the channel and a guide structure permanent magnet fixed to the cutting torch guide structure, where the cutting torch guide structure is configured with a first portion that is removable received in the channel of the base structure and a second portion that overhangs the base structure and includes an edge that defines a predefined shape and is configured to be in slidable contact with a cutting torch tip.