Side-Shift Tractor Attachment for Row Alignment

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Solution Overview

Problem

The horizontal forces exerted on towable agricultural attachments during field cultivation can hinder the tractor's ability to maintain straight and parallel rows, affecting the efficiency of crop cultivation and harvesting.

Innovation Solution

A side-shift attachment for tractors, featuring a first mounting member engaging with the tractor, a second mounting member engaging with the towable attachment, and actuation means allowing horizontal displacement, along with ground-penetrating elements like soil-penetrating discs to stabilize the tractor and buffer lateral forces, ensuring precise alignment and minimal drag.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a towable attachment is connected to a tractor via three-point linkage, then the attachment can be easily towed and positioned, but lateral forces from the attachment can affect the tractor's steering ability and prevent straight row cultivation

Engineering Contradiction:
Improveease of attaching and positioning towable attachmentVSAvoidlateral stability of tractor during cultivation
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The side-shift attachment acts as an intermediary device between the tractor and the towable attachment. It includes a first mounting member connected to the tractor and a second mounting member connected to the towable attachment, with actuation means allowing horizontal displacement between them. This intermediary mechanism isolates the tractor from lateral forces generated by the attachment, enabling stable straight-row cultivation while maintaining ease of operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If ground-penetrating elements are added to limit lateral movement of the tractor, then lateral stability is improved, but device complexity increases

Engineering Contradiction:
Improvelateral stability of tractorVSAvoidstructural complexity of side-shift attachment
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The side-shift attachment is divided into distinct functional segments: a first mounting member for tractor connection, a second mounting member for attachment connection, actuation means for horizontal displacement, and ground-penetrating elements for stability. This segmentation allows each component to perform its specific function independently, achieving lateral stability without excessive overall complexity.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If horizontal displacement between mounting members is enabled for precise positioning, then alignment precision is improved, but control complexity increases

Engineering Contradiction:
Improvealignment precision of towable attachmentVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The actuation means for horizontal displacement can be implemented using hydraulic or electric actuators that replace complex mechanical linkages. This substitution provides precise control of the second mounting member's horizontal position relative to the first mounting member, achieving high alignment precision while simplifying the control mechanism through modern actuation technology.

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

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 side-shift attachment enables stable control of towable attachments, allowing farmers to maintain straight and parallel rows without compensatory steering, enhancing crop alignment and yield efficiency by decoupling horizontal motion of the attachment from the tractor's forward motion.

Implementation Method 1

The at least one ground-penetrating element comprises at least one soil-penetrating disc attached to the first mounting member

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

for limiting lateral movement of the tractor during operation of the actuation means

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP3360401B1Side-shift attachment for tractor
Publication Date: 2019.07.03 EDWARDS FARM MACHINERY LTD
  • EP3360401B1 patent drawingFigure 1
  • EP3360401B1 patent drawingFigure 2a
  • EP3360401B1 patent drawingFigure 2b

AI summary

A side-shift attachment (16) for a tractor (12), the side-shift attachment (16) comprising a first mounting member (18) which is engagable with a tractor (12); a second mounting member (20) which is engagable with a towable attachment (14) for the tractor (12); and an actuation means arranged to permit horizontal relative displacement between the first and second mounting members (18, 20). There is also provided at least one ground-penetrating element (24) attached to the first mounting member (18) for limiting lateral movement of the tractor (12) during operation of the actuation means.