Resilient Linkage Ball Holder for Tractor Implement Storage

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Solution Overview

Problem

Existing storage solutions for linkage balls on agricultural tractors are complex and prone to misplacement or loss, requiring multi-part mechanical assemblies that are cumbersome and inefficient for field use.

Innovation Solution

A tulip-shaped linkage ball holder made from resiliently deformable materials, such as rubber, plastics, or spring steel, which clasp around the linkage ball for secure storage without the need for complex locking mechanisms, allowing easy insertion and removal while retaining the ball during transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multi-part mechanical assemblies are used to retain unused linkage balls, then the linkage balls can be stored on the tractor, but the storage system becomes complex and operators must perform multiple steps in correct order, increasing the risk of misplacement and loss

Engineering Contradiction:
Improvelinkage ball retention reliabilityVSAvoidstorage system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The holder is divided into a base portion and multiple fingers that can independently deform. This segmentation allows each finger to independently adapt to the linkage ball, providing reliable retention through simple elastic deformation rather than complex mechanical interlocking

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The holder utilizes elastic deformation of the resiliently deformable material to change its physical state from rigid to flexible during ball insertion, then returns to a rigid state for retention. This parameter change enables the holder to adapt to different ball sizes while maintaining simple construction

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If toolboxes or storage compartments are used to store unused linkage balls, then balls can be stored away from the linkage, but operators may misplace balls or find them inconveniently stored relative to the linkage location

Engineering Contradiction:
Improvelinkage ball accessibilityVSAvoidlinkage ball retention reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The holder is mounted adjacent to the linkage at the same operational level, making the ball storage location equally accessible whether the ball is in use or stored. This eliminates the need to move balls between distant storage compartments and the linkage, improving both accessibility and retention reliability

Inventive Principle:
Principle #12Equipotentiality

Solution Approach 2:

The holder automatically retains the linkage ball through elastic deformation of its fingers, requiring no additional locking mechanisms or operator actions. The ball is self-retained simply by being placed in the holder, eliminating misplacement risks associated with complex storage systems

Inventive Principle:
Principle #25Self-service

3Ease of operation

If a resiliently deformable holder with multiple fingers is used to store linkage balls, then easy insertion and removal of balls is achieved, but the holder must be made from flexible materials which may reduce structural strength

Engineering Contradiction:
Improvelinkage ball insertion easeVSAvoidholder structural strength
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The holder uses thin resiliently deformable fingers that are flexible enough to deform during ball insertion but maintain sufficient structural strength through elastic recovery. The thin-finger design provides the necessary flexibility for easy operation while the resilient material properties ensure adequate strength for retention during transport

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The holder can be constructed from composite materials combining resilience and strength, such as spring steel or reinforced plastics. These composite materials provide both the elastic deformation needed for easy insertion and the structural strength required for reliable retention under various operating conditions

Inventive Principle:
Principle #40Composite materials

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

Provides a simple, robust, and flexible storage solution that securely retains linkage balls of various sizes, reducing operator effort and minimizing the risk of loss, with the ability to be mounted at any suitable location on the tractor.

Implementation Method 1

a linkage ball holder at least partly formed from a resiliently deformable material, the linkage ball holder arranged to clasp about a portion of the surface of a linkage ball and hold the linkage ball in place

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3621424B1An agricultural tractor having an implement linkage
Publication Date: 2021.11.17 AGCO INT GMBH
  • EP3621424B1 patent drawingFigure 1
  • EP3621424B1 patent drawingFigure 2
  • EP3621424B1 patent drawingFigure 3~4

AI summary

There is described an agricultural tractor having an implement hitch or linkage which is arranged to receive linkage balls of different types. The tractor is provided with at least one linkage ball holder which can be used to store unused linkage balls on the tractor. The linkage ball holder is at least partly formed from a resiliently deformable material, such that a linkage ball can easily be retained within the holder without the need for additional mechanical locking parts.