Brush-Cutter Mowing Device for Dam Flanks

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Solution Overview

Problem

Existing mowing devices are ineffective in removing vegetation from the edge areas between ridges and dams in ridge culture systems, particularly where foils are used, as they either damage the foils or fail to reach the vegetation effectively, and chemical controls are undesirable.

Innovation Solution

A mowing device with a round brush and a cutting disk, where the brush's bristles are designed to sweep vegetation onto the cutting disk without damaging the foil, and a guide wheel for precise lateral guidance to avoid contact with the dam, ensuring effective mowing while protecting the foil and preventing damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a conventional mowing device is used to remove vegetation from edge areas between ridges and dams, then the mowing effectiveness is improved, but the foil covering the dam is damaged

Engineering Contradiction:
Improvemowing effectivenessVSAvoidfoil damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The mowing device is segmented into two distinct rotating elements: a round brush for gathering vegetation and a cutting disk for mowing. This segmentation allows each element to perform its specific function without interfering with the foil, enabling effective mowing while protecting the dam covering.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The round brush acts as an intermediary element between the cutting disk and the vegetation on the foil surface. It gathers and directs plant material toward the cutting disk without the disk needing to contact the foil directly, thus preventing foil damage while maintaining mowing effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If the cutting disk is positioned close to the dam surface to mow vegetation effectively, then the mowing quality is improved, but the risk of damaging the dam or foil increases

Engineering Contradiction:
Improvemowing qualityVSAvoidrisk of damage
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

By dividing the mowing function into two elements (brush and cutting disk), the system can maintain the cutting disk at a safe distance from the foil while the brush handles the vegetation close to the surface, ensuring both high mowing quality and protection of the dam structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The round brush serves as a mediator that bridges the gap between the cutting disk and the vegetation on the foil. It prepares and directs plant material to the cutting disk, allowing precise mowing without requiring the cutting disk to approach the foil closely, thus reducing damage risk.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If chemical control agents are used to prevent weed growth between dams, then the weed control effectiveness is improved, but the environmental safety deteriorates

Engineering Contradiction:
Improveweed control effectivenessVSAvoidenvironmental safety
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The invention replaces chemical weed control methods with a mechanical mowing system consisting of a round brush and cutting disk. This mechanical approach effectively removes vegetation between dams without introducing chemical substances into the environment, maintaining both weed control effectiveness and environmental safety.

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

4Device complexity

If a single rotating cutting element is used to mow vegetation, then the device simplicity is improved, but the ability to handle vegetation on foil surfaces without damage deteriorates

Engineering Contradiction:
Improvedevice simplicityVSAvoidfoil damage capability
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The mowing function is divided into two specialized rotating elements: a round brush for gathering and directing vegetation, and a cutting disk for mowing. This segmentation enables the device to handle vegetation on foil surfaces effectively without damaging the foil, while maintaining relatively simple device construction.

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

The device efficiently removes vegetation from the edge areas between ridges and dams without damaging the foils, maintaining cleanliness and preventing weed growth while avoiding direct contact with the dam, thus ensuring safe operation and effective mowing.

Implementation Method 1

The bristles of the first rotating element are designed to be flexible or soft so that they can be reversibly deformed. This arrangement ensures that the first rotating element engages a foil of a dam in such a way that vegetation is brushed off a surface of the respective flank

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

the guide wheel can be spring-mounted on the mowing unit in order to be able to make evasive movements in the event of discontinuities along a dam, but nevertheless to exert a lateral guiding force on the mowing unit

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3900516B1Device for mowing vegetation between dams and on the flanks of dams
Publication Date: 2023.08.09 HEULING MASCHINENBAU GMBH & CO KG
  • EP3900516B1 patent drawingFigure 1
  • EP3900516B1 patent drawingFigure 2
  • EP3900516B1 patent drawingFigure 3

AI summary

The present application relates to a device (1) for mowing vegetation between embankments (2) and on the flanks (3) of embankments (2) of a embankment crop on which plants (4) are placed and which are covered with foil or similar material, comprising a housing (12), a mowing unit (5) with two rotating elements (7, 8) and a guide wheel (15) by means of which the mowing unit (5) can be guided on a flank (3) of an embankment (2) at a defined distance from the embankment (2), wherein a first rotating element (7) is formed by a round brush having bristles and the second rotating element (8) is formed by a knife or a cutting disc, wherein the second rotating element (8) is arranged in the housing (12), wherein the device (1) is designed as a unit with its own wheels or is movable on a carrier vehicle.In order to provide a mowing device that reliably cleans, in particular, the flank areas of covered embankments, it is proposed according to the invention that the first rotating element (7) in its arrangement or position with bristles (9) sweeps over a partial area (10) of the second rotating element (8), wherein the housing (12) comprises a partial opening (11), wherein the bristles of the second rotating element (7) engage in the partial opening (11) of the housing (12).