Work Vehicle Status Display Layout for Visibility Without Height Increase

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Solution Overview

Problem

The existing work vehicles with state display parts mounted above the cabin face challenges in visibility, mounting complexity, and risk of damage due to their elevated position, which increases vehicle height and susceptibility to contact during transport or storage.

Innovation Solution

The state display parts are arranged at diagonally opposed corners of the cabin, outside the cabin and within the wheel area, with one part positioned opposite the muffler, and are attachable and detachable via a support stay, ensuring improved visibility and protection from damage while simplifying mounting and preventing height increase.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the state display part is mounted above the cabin, then the visibility of the state display part is improved, but the mounting task becomes more labor-intensive and the vehicle height increases

Engineering Contradiction:
Improvevisibility of state display partVSAvoidmounting task complexity
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

The patent transitions the state display part from a vertical arrangement (above the cabin) to a horizontal arrangement (at diagonally opposed corners of the cabin). This dimensional change maintains visibility by distributing display parts across the cabin's diagonal axes while eliminating the need for high mounting positions, thereby simplifying the mounting task without compromising visibility.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Illumination intensity

If the state display part is mounted above the cabin, then the visibility of the state display part is improved, but the state display part protrudes upward and may sustain damage during transport or storage

Engineering Contradiction:
Improvevisibility of state display partVSAvoiddamage risk to state display part
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent relocates the state display part from a vertical position (above the cabin) to a horizontal position (at diagonally opposed corners of the cabin). This dimensional relocation eliminates the protrusion upward, preventing contact with objects during transport or storage, while maintaining visibility through strategic corner placement that ensures the display parts remain accessible and visible from multiple angles.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If the state display part is mounted above the cabin, then the visibility of the state display part is improved, but the vehicle height increases

Engineering Contradiction:
Improvevisibility of state display partVSAvoidvehicle height
Core Design Contradiction:
Illumination intensityVSLength of stationary object

Solution Approach 1:

The patent redistributes the state display part from a vertical arrangement (above the cabin) to a horizontal arrangement (at diagonally opposed corners of the cabin). This dimensional redistribution eliminates the need for elevated mounting positions, thereby maintaining the original vehicle height while ensuring the state display parts remain visible from multiple angles through their corner placement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3750750B1Work vehicle
Publication Date: 2026.02.04 YANMAR POWER TECH CO LTD
  • EP3750750B1 patent drawingFigure 1
  • EP3750750B1 patent drawingFigure 2
  • EP3750750B1 patent drawingFigure 3

AI summary

The purpose of the present invention is to improve visibility of a status display unit while simplifying the installation of the status display unit and preventing damage to the status display unit. The present invention comprises: a work vehicle body (1) capable of traveling automatically; a status detection unit that detects the status of the work vehicle body (1); and status display units (35) that show a status display according to the status of the work vehicle body (1) detected by the status detection unit. At least one pair of status display units (35) are arranged diagonally across the work vehicle body (1) in plan view.