Hoeing Share Geometry for Soil Loosening Over Stones

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Solution Overview

Problem

Existing hoe shares are limited in their ability to efficiently loosen soil and manage obstacles like stones during mechanical weed control, often requiring chemical herbicides for effective weed management.

Innovation Solution

A hoeing blade design featuring a mounting section, transition section, primary and secondary tillage sections, and a forward projection for breaking up soil, allowing for efficient soil loosening and obstacle navigation while minimizing mechanical resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If hoe shares are pressed through the soil during use, then soil loosening is achieved, but mechanical resistance increases when obstacles like stones are encountered

Engineering Contradiction:
Improvesoil loosening efficiencyVSAvoidmechanical resistance from obstacles
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the conventional pushing action by implementing a pulling action. The share is designed to be pulled through the soil rather than pushed, which allows it to navigate over obstacles like stones without encountering high mechanical resistance, while still achieving effective soil loosening through the pulling force

Inventive Principle:
Principle #13The other way round (Inversion)

2Productivity

If chemical herbicides are used for weed control, then effective weed management is achieved, but environmental harm and chemical dependency increase

Engineering Contradiction:
Improveweed control effectivenessVSAvoidchemical herbicide use
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces chemical herbicides with a mechanical weed control system. The specially designed share with its unique geometry and pulling action mechanically cuts and uproots weeds through soil cultivation, providing effective weed control without relying on chemical substances

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

3Device complexity

If the hoe blade has a simple single-section design, then device complexity is reduced, but soil cultivation effectiveness decreases

Engineering Contradiction:
Improvestructure simplicityVSAvoidsoil cultivation effectiveness
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent divides the hoe blade into multiple functional sections: a mounting section for attachment, a transition section for force distribution, and a tillage section for soil cultivation. This segmentation allows each part to perform its specific function optimally, enhancing overall soil cultivation effectiveness while maintaining a relatively simple integrated structure

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4649793A1Share
Publication Date: 2025.11.19 JAKEL GMBH & CO KG
  • EP4649793A1 patent drawingFigure 1
  • EP4649793A1 patent drawingFigure 2
  • EP4649793A1 patent drawingFigure 3

AI summary

The invention relates to a hoeing share (100; 300; 500; 700) comprising a mounting section (103), a transition section (104), a first soil cultivation section (101) and a second soil cultivation section (102), wherein the mounting section (103) is designed for attachment to a tractor, wherein the mounting section (103) transitions via the transition section (104) into the soil cultivation sections (101; 102), wherein the mounting section (103) extends with its greatest direction of extension forward from the transition section (104) in a longitudinal direction and upward in a vertical direction, wherein the soil cultivation sections (101; 102) extend with their respective greatest direction of extension backward from the transition section (104) in a longitudinal direction, wherein the soil cultivation sections (101;102) diverge in a transverse direction starting from the transition section (104), wherein a projection (108) extending longitudinally forward is arranged on the fastening section (103).