Loader Parking Stand With Ratchet Locking Mechanism

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Solution Overview

Problem

The manual process of setting and retracting parking stands for loader assemblies is tedious, time-consuming, and hazardous, requiring precise alignment for reattachment, which poses challenges in efficiency and safety.

Innovation Solution

A loader parking stand assembly with a latch and lock mechanism that automatically secures and supports the boom and bucket, featuring pivotally attached struts and a locking plate with divots for unidirectional locking, allowing for easy transition between stowed and parking positions, and includes a ratchet-type mechanism for locking the support leg in an extended position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operation of parking stands is used, then the operator can control the positioning, but the process is tedious, time-consuming, and hazardous

Engineering Contradiction:
Improveease of parking stand operationVSAvoidtime for parking stand positioning
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The parking stand system performs self-positioning and self-locking through automatic sensing and actuation. The system detects boom position, automatically extends the parking stand to the correct angle, and engages the locking mechanism without operator intervention, making the system serve itself rather than requiring manual operation

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operation with an automated control system that uses sensors to detect boom position and electronically controls hydraulic actuators to position and lock the parking stand, substituting the manual mechanical system with an electro-hydraulic automated system

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If precise alignment is required for reattachment, then the connectors will align properly, but the manual positioning process becomes more complex and time-consuming

Engineering Contradiction:
Improvealignment precision of connectorsVSAvoidcomplexity of positioning mechanism
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system uses sensors to detect the actual position of the boom and provides feedback to the control system, which then adjusts the parking stand angle accordingly to ensure precise alignment of connectors for reattachment, achieving accurate positioning through closed-loop control rather than complex mechanical positioning mechanisms

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The parking stand serves multiple functions: it provides structural support for the boom, enables precise alignment of connectors for reattachment, and incorporates an automatic locking mechanism. This multi-functionality reduces the need for separate alignment devices and simplifies the overall system

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the parking stand is manually extended and retracted, then the operator can control the positioning, but the operator is exposed to hazards from heavy equipment

Engineering Contradiction:
Improvecontrol over parking stand positioningVSAvoidsafety hazards to operator
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The parking stand system performs self-extension and self-retraction through automated hydraulic actuators controlled by the system's control unit, eliminating the need for operator proximity to heavy moving parts and thereby removing the safety hazards associated with manual operation

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent introduces an intermediary automated control system that mediates between the operator's intent and the heavy mechanical components. The control system acts as an intermediary layer that translates operator commands into automated actuator movements, keeping the operator at a safe distance from hazardous equipment

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

The solution simplifies the parking process, enhances safety by reducing manual handling of heavy equipment, and ensures precise alignment for easy reattachment, thereby improving operational efficiency and reducing operator hazards.

Implementation Method 1

a locking plate, wherein the locking plate comprises plurality of locking divots for receiving the first strut and second strut

Methodology Applied
Scientific EffectMechanical locking: Mechanical Fastener

Implementation Method 2

a first strut pivotally attached to a second strut

Methodology Applied
Scientific EffectPivoting: Hinge

Implementation Method 3

includes a ratchet-type mechanism for locking the support leg in an extended position

Methodology Applied
Scientific EffectRatchet mechanism: Ratchet

Data Source

PatentEP3098354B1Loader parking assembly and method for operating
Publication Date: 2018.05.16 DEERE & CO
  • EP3098354B1 patent drawingFigure 1
  • EP3098354B1 patent drawingFigure 2
  • EP3098354B1 patent drawingFigure 3

AI summary

A loader parking assembly is disclosed. The loader parking assembly comprises a loader boom (135); and a parking stand (125) attached to the boom (135) comprising a first strut (415) pivotally attached to a second strut (420) and a locking plate (410), wherein the locking plate (410) comprises plurality of locking divots (440) for receiving the first strut and second strut (415, 420), wherein the first strut (415) and second strut (420) each comprise a strut end (235), wherein each strut end (235) is engageable with at least one of the plurality of locking divots (440) to secure the first strut (415) and the second strut (420), respectively. Furthermore, a method for operating a loader parking assembly is disclosed.