Variable Interrow Seeder Toolbar with Extensible Chassis

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Solution Overview

Problem

Current variable pitch sowing machines are limited in the number of rows they can sow in a single pass and are not adaptable for different seed types due to fixed positions of external sowing elements, restricting their versatility and functionality.

Innovation Solution

A frame design for a variable pitch sowing machine that includes a first chassis with extensible portions and a second chassis with vertically movable sowing elements, allowing horizontal adjustment to accommodate different seed types and row distances, enabling easy transportation and versatile sowing capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the sowing machine is designed with a fixed frame structure, then the manufacturing cost is reduced and the structure is simplified, but the machine cannot adapt to different seed types and row distances

Engineering Contradiction:

Improveadaptability to different seed types and row distancesVSAvoidframe structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The frame is divided into a central chassis and two lateral chassis that can move independently. The lateral chassis are segmented from the central chassis and can be positioned at different distances, allowing adaptation to different row configurations while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The lateral chassis are designed to be movable relative to the central chassis through rolling elements. This dynamic configuration allows the frame to adapt to different seed types and row distances by adjusting the position of lateral chassis, while the base structure remains relatively simple.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the lateral chassis are positioned at fixed distances, then the structure is simplified and easier to manufacture, but the machine cannot accommodate different sowing requirements for various seeds

Engineering Contradiction:

Improveversatility for different sowing requirementsVSAvoidease of manufacture

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The lateral chassis are designed with rolling elements that enable them to move along the central chassis to different positions. This dynamic positioning system provides versatility for different sowing requirements while maintaining a relatively simple manufacturing process based on standard rolling element components.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The position parameter of the lateral chassis can be changed by moving them along the central chassis using rolling elements. This allows the machine to adapt to different sowing requirements by adjusting the distance between chassis, while the manufacturing process remains relatively simple using standard mechanical components.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If more sowing elements are added to increase the number of rows, then the productivity is improved, but the transportation width exceeds the three-meter limit

Engineering Contradiction:

Improvenumber of rows sowed per passVSAvoidtransportation width

Core Design Contradiction:

ProductivityVSLength of moving object

Solution Approach 1:

The lateral chassis are positioned in a lateral dimension perpendicular to the main sowing direction, allowing multiple rows to be sowed simultaneously without increasing the forward length of the machine. This dimensional arrangement enables high productivity while maintaining compliance with transportation width limits.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The lateral chassis can be positioned close to the central chassis and nested within the overall frame structure when not in use. This nesting capability allows the machine to accommodate multiple sowing elements for high productivity while maintaining a compact configuration that fits within the three-meter transportation width limit.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentEP2526753B1Toolbar for a seeder with variable interrow spacing and seeder with variable interrow spacing that includes said toolbar

Publication Date: 2014.01.01 MAQUINARIA AGRI SOLA

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AI summary

It comprises a first chassis (2) provided with a first plurality of sowing elements (3), said first chassis (2) including at least one portion (2a, 2b, 2c, 2d) horizontally extensible from a transporting position to a working position, said frame (1) comprising at least a second chassis (4) provided with a second plurality of sowing elements (5) and means (6) for vertically moving said sowing elements from an upper transporting position to a lower working position in which the sowing elements (5) of said second chassis (4) are placed aligned with respect to the sowing elements (3) of the first chassis (2), and it is characterized in that said second chassis (4) is attached to the extensible portion (2a, 2b, 2c, 2d) of said first chassis (2), so that said second chassis (4) can be horizontally moved with said extensible portion (2a, 2b, 2c, 2d) to adapt the position of its elements to the kind of sowing.