Furrowing Tip Body With Enclosed Central Chamber

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Solution Overview

Problem

Paired row openers face issues with mud entering the central chamber during wet conditions, causing plugging of seed material intended to be dispensed in paired rows due to the open design of existing furrowing tip bodies.

Innovation Solution

A furrowing tip body design with a central chamber enclosed by wing portions and a bottom wall, featuring outlet openings only on the rear face, prevents mud ingress by ensuring the chamber is substantially enclosed on all sides except for the outlet openings, thereby preventing plugging even in wet conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the central chamber is open to the sides and bottom for easy seed dispensing, then the seed can be easily distributed in paired rows, but mud enters the chamber from sides and below causing plugging in wet conditions

Engineering Contradiction:

Improveseed dispensingVSAvoidchamber plugging prevention

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The tip body is divided into functional sections: an enclosed central chamber for seed storage, wing portions for furrow formation, and outlet openings for controlled dispensing. This segmentation allows the chamber to be sealed while maintaining dispensing functionality through the outlet openings.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The central chamber is enclosed by the bottom wall and wing portions forming a protective shell structure that prevents mud ingress while allowing seed passage through the controlled outlet openings in the rear face.

Inventive Principle:

Principle #30Flexible shells and thin films

2Ease of repair

If the tip body components are made separable for easy maintenance, then wearing components can be replaced quickly, but the structural complexity increases

Engineering Contradiction:

Improvecomponent replacementVSAvoidtip body structure

Core Design Contradiction:

Ease of repairVSDevice complexity

Solution Approach 1:

The tip body is segmented into separable components including the tip body itself and the opener body, allowing the tip body to be removed and replaced independently. This modular design enables easy replacement of wearing components without affecting the entire opener assembly.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS7617783B1Furrowing tip body for a paired row opener

Publication Date: 2009.11.17 DUTCH BLACKSMITH SHOP LTD

AI summary

A paired row opener has a furrowing tip arranged to be selectively supported on a body of the opener. The furrowing tip includes a knife portion and a pair of wing portions extending rearwardly and outwardly therefrom. A central chamber between the wing portions communicates with a primary delivery passage of the opener body to receive the primary particulate material therefrom to be dispensed in a paired row from a pair of outlet openings of the chamber which are laterally spaced apart in a rear face of the tip body. A bottom wall spans a bottom side of the chamber between the wing portions to the rear face such that the outlet openings lie in an upright plane at a rearmost end of the tip body to be prevented from plugging even in wet conditions, while remaining selectively separable with the tip body from the opener body for replacement.