Front Loader Bucket Display for Vertical Position and Angle Control

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Solution Overview

Problem

Operators of work vehicles, such as tractors equipped with buckets, face challenges in easily checking the vertical position and angle of the bucket while operating the vehicle.

Innovation Solution

A work vehicle is equipped with a display that synchronizes with the movement of the bucket to show vertical position and angle information, allowing operators to set and monitor these parameters easily through an intuitive interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the operator checks the bucket position and angle by visually observing the bucket directly, then no additional equipment is needed, but the operator cannot easily monitor the vertical position and angle parameters while operating the vehicle

Engineering Contradiction:
Improvebucket position and angle informationVSAvoidoperator convenience
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent creates a visual copy of the bucket's actual position and angle parameters through a display device. Sensors detect the real bucket parameters, and the display shows these parameters graphically with rulers and indicators, allowing the operator to monitor bucket position and angle without directly observing the physical bucket, thus solving the information loss problem while maintaining ease of operation

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent introduces an intermediary system consisting of sensors, processing units, and display devices between the bucket and the operator. This intermediary system converts physical bucket parameters into visual information that can be easily monitored by the operator, resolving the contradiction between information availability and operational convenience

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If the operator leaves the vehicle to check the bucket position, then accurate visual inspection is possible, but operational efficiency decreases due to time loss

Engineering Contradiction:
Improvebucket position accuracyVSAvoidoperational efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces the mechanical approach of the operator physically leaving the vehicle to inspect the bucket with an electronic information system. Sensors and display devices provide real-time visual feedback of bucket position and angle parameters, allowing the operator to maintain measurement precision while staying inside the vehicle, thus eliminating time loss and improving productivity

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

Solution Approach 2:

The patent implements a feedback system where sensors continuously monitor bucket parameters and provide real-time visual feedback through the display. This feedback loop allows the operator to accurately monitor bucket position and angle without leaving the vehicle, maintaining measurement precision while continuously working, thereby improving operational efficiency

Inventive Principle:
Principle #23Feedback

3Ease of operation

If complex control systems are added to monitor bucket parameters, then operational control improves, but device complexity increases

Engineering Contradiction:
Improvebucket control easeVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the monitoring system into distinct functional modules: sensors for detecting parameters, processing units for calculating positions and angles, and display devices for visual presentation. This segmentation allows each component to perform its specific function simply, reducing overall system complexity while improving ease of operation through specialized, focused components

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3882065B1Work vehicle
Publication Date: 2025.06.11 YANMAR POWER TECH CO LTD
  • EP3882065B1 patent drawingFigure 1
  • EP3882065B1 patent drawingFigure 2
  • EP3882065B1 patent drawingFigure 3

AI summary

Provided is a work vehicle (1) comprising a front loader (80) having a bucket (83), which can be freely raised, lowered and rotated, and a display (2) located in the vicinity of an operator's seat (161), whereby said display (2) displays a loader screen (S5) showing graphs (G1, G2) indicating a vertical position of the bucket (83)