Mowing Unit Insect Protection With Adjustable Support Arms

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Solution Overview

Problem

Existing insect protection systems for mowing devices are cumbersome and inefficient, requiring manual adjustment to navigate around obstacles like trees and signs, and are not cost-effective.

Innovation Solution

A protective device with a scaring unit and adjustable support arms that allow variable distance and angle adjustment relative to the mower, combined with spring and damper elements for automatic adjustment and obstacle detection, enabling comfortable and efficient mowing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the driver manually adjusts the mowing device to mow close to obstacles, then the mowing can be completed in tight spaces, but the operation becomes cumbersome and time-consuming

Engineering Contradiction:
Improveease of mowing in tight spacesVSAvoidmowing time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The support arm is designed to be movable and adjustable, allowing the scaring unit to dynamically change its position relative to the mower deck. This enables the system to adapt to different working conditions and obstacles automatically, resolving the contradiction between ease of operation and time loss by eliminating manual adjustment requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system enables self-adjustment of the scaring unit position through the movable support arm mechanism. The device can automatically navigate around obstacles without requiring continuous manual intervention from the driver, thus improving ease of operation while reducing mowing time

Inventive Principle:
Principle #25Self-service

2Reliability

If the scaring unit is positioned far from the mower deck, then insects are effectively scared away, but the device complexity and material usage increase

Engineering Contradiction:
Improveinsect protection effectivenessVSAvoidsupport structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support arm provides a dynamic positioning system that allows the scaring unit to maintain the optimal distance from the mower deck. This movable connection enables the system to achieve reliable insect protection while keeping the structure simple and adaptable to different operational requirements

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support arm is divided into multiple sections or segments that can be independently adjusted. This segmentation allows for flexible positioning of the scaring unit at the required distance from the mower deck while using minimal material and maintaining structural simplicity

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient and cost-effective mowing in tight spaces with obstacles by automatically adjusting to maintain a safe distance and angle, reducing manual intervention and enhancing mowing speed.

Implementation Method 1

the at least one support arm can be designed in the manner of a spring element, for example, in the manner of a gas spring

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

the at least one support arm can be designed in the manner of a spring element, for example, in the manner of a gas spring

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentEP4403015B1Protection device for scaring off insects and for use on a mowing unit of a mowing device, and mowing device
Publication Date: 2025.07.16 AMAZONEN WERKE H DREYER GMBH & CO KG
  • EP4403015B1 patent drawingFigure 1~3
  • EP4403015B1 patent drawingFigure 4
  • EP4403015B1 patent drawingFigure 5

AI summary

The invention relates to a protective device (1) for scaring away insects and for use on a mowing device (30), comprising: - a scaring unit (2) with which insects can be scared away and/or repelled, - at least one holding arm (3, 3.1, 4, 4.1) with a first and a second end (5, 6), - wherein the first end (5) can be attached to a mowing device (30), and - wherein the second end (6) is connected to the scaring unit (2) such that the scaring unit (2) and the at least one holding arm (3, 3.1, 4, 4.1) are rotatable and displaceable relative to each other. The invention further relates to a mowing device (30) for mowing grass and/or collecting leaves with a protective device (1).