Rotatable Driver Seat for Articulated Dumper Visibility

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Solution Overview

Problem

Operational convenience and visibility issues in work vehicles, such as dumpers and wheel loaders, arise when the driver's view is obstructed by the load, affecting driving dynamics and safety, especially when reversing with a loaded trough unit.

Innovation Solution

A work vehicle design featuring a rotary console with a driver's seat that pivots 180°, maintaining the spatial arrangement of controls and sensors, allowing the driver to comfortably operate and observe the load from either position, with a joint enabling both vertical and longitudinal axis movement for steering and oscillation, enhancing visibility and driving dynamics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the driver's seat is positioned to face the trough for convenient load operation, then the driver can easily observe and operate the trough, but the driver's field of vision is restricted when the trough is in front during movement

Engineering Contradiction:
Improveconvenience of operating the troughVSAvoidrestriction of driver's field of vision
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The driver's seat is made rotatable about a vertical axis, allowing the driver to dynamically change their facing direction between facing the trough for operation and facing forward for driving. This dynamic adjustment resolves the contradiction by enabling the driver to optimize their position for each specific task rather than being fixed in one position.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If the driver's seat is positioned facing forward for better driving visibility, then the driver has an unobstructed view during movement, but the driver cannot easily observe the trough for convenient operation

Engineering Contradiction:
Improvedriver's field of vision during drivingVSAvoidconvenience of observing the trough
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The rotatable driver's seat enables the driver to switch between facing forward for optimal driving visibility and rotating to face the trough for convenient load observation and operation. This dynamic positioning capability resolves the contradiction by allowing the driver to adapt their orientation to the current task requirement.

Inventive Principle:
Principle #15Dynamics

3Loss of information

If the driver is exposed to the front during reversing operations, then the driver can see the path ahead, but the driver is exposed to debris and unsafe conditions

Engineering Contradiction:
Improvevisibility of the path aheadVSAvoidexposure to debris and unsafe conditions
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The rotatable driver's seat allows the driver to rotate and face the trough during reversing operations, providing visibility of the path ahead through the trough area while being positioned away from the direct exposure to debris and unsafe conditions at the front. This dynamic repositioning resolves the contradiction between visibility and safety exposure.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3211141B1Dumper with articulated steering and with a rotatable driver seat
Publication Date: 2022.04.20 WACKER NEUSON LINZ
  • EP3211141B1 patent drawingFigure 1
  • EP3211141B1 patent drawingFigure 2
  • EP3211141B1 patent drawingFigure 3

AI summary

A work vehicle comprises a drive unit (1) with a drive mechanism and a driver's seat (10), and a tipper unit (2) with a tipper body (6) for receiving a load. A joint (4) is arranged between the drive unit (1) and the tipper unit (2) for coupling the drive unit (1) to the tipper unit (2) such that the drive unit (1) and the tipper unit (2) are movable relative to each other about at least one vertical axis (Z) of the work vehicle. A swivel base (11) is provided on the drive unit (1), which supports the driver's seat (10) and is pivotable relative to the rest of the drive unit (1) about a vertical axis between a forward position and a reverse position.