Adjustable Round Baler Unloading Arms for Directional Control

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Solution Overview

Problem

Existing round balers lack the ability to control the unloading direction of round bales effectively, leading to inefficient and unsafe unloading, especially on sloping or hilly terrain, where bales can roll uncontrollably, increasing the risk of accidents and requiring operators to interrupt their work to find suitable storage locations.

Innovation Solution

A round baler equipped with an adjustable unloading device featuring a first and second support arm, actuated to allow the bale to be unloaded in multiple directions, including behind the baler and on its side, preventing rolling and enabling safe placement on uneven terrain, which can be retrofitted to existing balers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fixed unloading device is used, then the structure is simple, but the unloading direction cannot be controlled and safety is compromised on sloping terrain

Engineering Contradiction:

Improveunloading safetyVSAvoidunloading device structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The unloading device transitions from a fixed structure to a dynamic, adjustable system. The support arm can be positioned at different angles and locations to adapt to varying terrain conditions, allowing controlled unloading in multiple directions while maintaining structural simplicity through modular design

Inventive Principle:

Principle #15Dynamics

2Productivity

If multiple unloading directions are enabled, then productivity increases, but device complexity increases

Engineering Contradiction:

Improveunloading efficiencyVSAvoidunloading device structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The unloading device is segmented into modular components: a support arm with adjustable positioning, a bale engagement mechanism, and a control system. This segmentation allows the device to achieve multiple unloading directions through coordinated movement of discrete parts rather than requiring a completely complex reconfigurable structure

Inventive Principle:

Principle #1Segmentation

3Ease of operation

If the bale is allowed to roll freely, then unloading is simple, but control over unloading direction is lost

Engineering Contradiction:

Improveunloading operationVSAvoidunloading direction control

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The support arm acts as an intermediary between the bale chamber and the ground. It provides a controlled interface that guides the bale's movement, allowing the operator to direct the bale to specific locations while maintaining ease of operation through intuitive arm positioning rather than complex manual manipulation

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP3578035B1Round baler and discharging method

Publication Date: 2022.04.06 DEERE & CO

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AI summary

An unloading device (38) for unloading a round bale (30) from a round baler (10), comprising a first support arm (60) for unloading a round bale (30) and a second support arm (62) for unloading a round bale (30), and an actuator (76). The first and second support arms (60, 62) are adjustable and can be mounted on a round baler (10), and the first and second support arms (60, 62) are adjustable by means of the actuator (76) depending on the unloading direction of a round bale (30). The invention further relates to a round baler (10) and an unloading method for unloading a round bale (30) from a round baler (10).