Removable Pointed Member Between Discs for Furrow Shaping

Solution Overview

Problem

Current seed sowing assemblies face challenges with furrow opening, particularly in unploughed or wet soils, where traditional plowshares generate high resistance and double-disc openers produce irregular furrows, leading to inconsistent seed placement and increased maintenance needs due to worn-out pointed members.

Innovation Solution

A seed sowing assembly with two adjacent discs and a removable pointed member that can be easily replaced without dismantling the discs, utilizing a male/female connection and elastic retaining means for quick and efficient maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If traditional plowshares are used to open furrows, then the furrows are properly configured with a V section, but the resistance increases significantly when the earth is wet and the shares generate high resistance in unploughed land

Engineering Contradiction:

Improvefurrow shapeVSAvoidresistance

Core Design Contradiction:

ShapeVSForce

Solution Approach 1:

The furrow opening function is divided into two separate components: double discs for cutting through the soil and a pointed member for shaping the furrow. This segmentation allows each component to specialize in its optimal function, reducing overall resistance while maintaining proper furrow configuration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention combines double-disc openers with a pointed member into a single integrated furrow opening device. This merging allows the system to benefit from both the cutting efficiency of discs and the shaping capability of the pointed member, achieving proper V-shaped furrows with reduced resistance compared to traditional plowshares.

Inventive Principle:

Principle #5Merging (Combining)

2Force

If double-disc devices are used to open furrows in harder soils, then the resistance is reduced, but the groove section becomes W-shaped rather than V-shaped, leading to inconsistent seed placement

Engineering Contradiction:

ImproveresistanceVSAvoidfurrow shape

Core Design Contradiction:

ForceVSShape

Solution Approach 1:

The furrow opening function is divided into two separate components: double discs for cutting through the soil and a pointed member for shaping the furrow. This segmentation allows each component to specialize in its optimal function, reducing overall resistance while maintaining proper furrow configuration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention combines double-disc openers with a pointed member into a single integrated furrow opening device. This merging allows the system to benefit from both the cutting efficiency of discs and the shaping capability of the pointed member, achieving proper V-shaped furrows with reduced resistance compared to traditional plowshares.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of repair

If the pointed member is removably mounted on the frame between the two discs, then it can be replaced, but it is necessary to dismantle at least one of the two discs or even both to replace the tip member

Engineering Contradiction:

Improvereplaceability of pointed memberVSAvoiddismantling operation

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The retention system is segmented into a retaining means that can be independently actuated to release the pointed member. This allows the pointed member to be removed without dismantling the discs, as the retaining means provides a separate access path for replacement.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The retaining means acts as an intermediary mechanism between the pointed member and the frame. It provides a controlled release mechanism that allows the pointed member to be removed without directly dismantling the discs, simplifying the replacement operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Ensures consistent seed placement and spacing by maintaining optimized furrow shape, reducing operator effort and frequency of maintenance, and improving seed distribution accuracy.

Implementation Method 1

means for actuating said retaining means, making it possible to replace said pointed member without dismantling one of the two discs or even the two discs

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP2359672B1Seed unit with a pointed element between two opening discs for a furrow and means for release of the elements without removing the discs

Publication Date: 2014.07.30 RIBOULEAU MONOSEM

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AI summary

The invention relates to a seeding assembly, comprising a frame (10) on which are mounted: - means for opening a furrow in the soil, in the form of two adjacent discs (40,41); - a pointed element (5) mounted removably on said frame and projecting between said two discs and towards the ground, said element being intended to shape said furrow in a V shape, characterized in that it comprises: - retaining means (6) of said element mounted movably on said frame (10) between a retaining position of said element and a release position; - actuating means (62) connected to said retaining means.