Integrated Welding Torch Cable Assembly to Cut Part Count

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Solution Overview

Problem

Conventional gas tungsten arc welding (GTAW) torches require individual selection and assembly of components, leading to increased complexity, time, and cost in manufacturing and user experience.

Innovation Solution

Integrated welding torches with integrated cables, where the torch head, power cable, coolant lines, and power source connector are combined into a single piece, reducing the number of parts and assembly requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If individual components (torch head, power cable, coolant lines, connector) are provided separately, then component selection flexibility and replaceability are improved, but device complexity and assembly time increase

Engineering Contradiction:
Improvecomponent selection flexibilityVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the torch head, power cable, coolant lines, and connector into a single integrated torch assembly. This merging eliminates the need for separate component selection and assembly by the consumer, directly resolving the contradiction by prioritizing reduced complexity over component flexibility.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated torch assembly serves multiple functions simultaneously - electrical connection, coolant delivery, and welding operation - all within a single pre-assembled unit. This multi-functionality approach allows the product to maintain versatility while eliminating assembly complexity.

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

2Ease of repair

If individual components are provided separately, then replaceability of damaged parts is improved, but manufacturing time and cost increase

Engineering Contradiction:
Improvecomponent replaceabilityVSAvoidmanufacturing efficiency
Core Design Contradiction:
Ease of repairVSProductivity

Solution Approach 1:

By integrating all components into a single manufactured unit, the patent streamlines the manufacturing process into one cohesive production line, improving manufacturing efficiency and productivity while accepting that the entire assembly rather than individual parts would be replaced if damaged.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If multiple separate components are assembled, then functionality is improved, but user assembly time and complexity increase

Engineering Contradiction:
Improvetorch functionalityVSAvoiduser assembly time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The torch components are pre-assembled into a complete functional unit during manufacturing, eliminating the need for user assembly. This preliminary action by the manufacturer directly resolves the contradiction by maintaining full functionality while reducing user assembly time to zero.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4549072A1Welding torch having integrated cables
Publication Date: 2025.05.07 ILLINOIS TOOL WORKS INC
  • EP4549072A1 patent drawingFigure 1
  • EP4549072A1 patent drawingFigure 2
  • EP4549072A1 patent drawingFigure 3

AI summary

An example welding torch includes a torch head, a torch handle including conductive tubing electrically and mechanically connected to the torch head at a first end of the conductive tubing, one or more welding power conductors, a gas conductor, and one or more coolant lines directly connected to a second end of the conductive tubing, and a casing configured to cover the one or more welding power conductors. An example welding torch includes a torch head configured to conduct welding-type power, a torch handle including conductive tubing coupled to the torch head, and a torch cable integrally coupled to the torch handle at a first end of the torch cable, the torch cable and the torch handle including an electrical path from a power supply connector to the torch head and a coolant path to cool the torch head.