Forward Towing Winch Layout for Pipelayer Operator Visibility

Solution Overview

Problem

The existing pipelayer machines have a towing winch located at the rear, requiring operators to twist and turn, leading to fatigue and decreased efficiency during operations.

Innovation Solution

The towing winch assembly is relocated to the front portion of the pipelayer machine, allowing the operator to maintain a forward-facing position, improving ergonomics and reducing fatigue by facilitating easier access and visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the towing winch is located at the rear portion of the pipelayer machine, then the machine structure is simplified and easier to manufacture, but the operator experiences fatigue due to prolonged twisting and turning during towing operations

Engineering Contradiction:

Improveease of manufactureVSAvoidease of operation

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The patent inverts the conventional rear-located towing winch configuration by relocating it to the front portion of the pipelayer machine. This inversion allows the operator, who sits in a front-facing cabin, to directly observe and control the towing operation without twisting or turning, thereby eliminating operator fatigue while maintaining structural simplicity

Inventive Principle:

Principle #13The other way round (Inversion)

2Device complexity

If the towing winch is located at the rear portion of the pipelayer machine, then the device structure is simplified, but the operator efficiency decreases due to fatigue from prolonged twisting and turning

Engineering Contradiction:

Improvedevice complexityVSAvoidoperator efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent inverts the conventional rear-located towing winch configuration by relocating it to the front portion of the pipelayer machine. This inversion allows the operator, who sits in a front-facing cabin, to directly observe and control the towing operation without twisting or turning, thereby eliminating operator fatigue and improving productivity while maintaining structural simplicity

Inventive Principle:

Principle #13The other way round (Inversion)

3Ease of operation

If the operator cabin faces the front portion of the pipelayer machine, then the operator has good visibility and control, but the towing winch must be relocated from the rear to the front which complicates the machine structure

Engineering Contradiction:

Improveoperator visibility and controlVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent inverts the conventional rear-located towing winch configuration by relocating it to the front portion of the pipelayer machine. This inversion allows the operator, who sits in a front-facing cabin, to directly observe and control the towing operation without twisting or turning. The front portion of the machine chassis provides sufficient space and structural support for the towing winch assembly, maintaining overall structural simplicity

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS11970375B2Pipelayer machine with forward towing winch configuration

Publication Date: 2024.04.30 CATERPILLAR INC

AI summary

A pipelayer machine may comprise a machine chassis; a towing winch assembly coupled to the machine chassis; an operator cabin supported by the machine chassis; an engine supported by the machine chassis; and a boom coupled to the machine chassis. The pipelayer machine may comprise a front portion and a rear portion. The towing winch assembly may be provided in the front portion of the pipelayer machine. The operator cabin may be provided between the towing winch assembly and the engine.