Three-Axis Carriage Assembly Maneuverability

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Solution Overview

Problem

Conventional carriage assemblies in working machines, such as telehandlers, lack sufficient manoeuvrability, which hampers operator efficiency and stability when handling materials or cargo.

Innovation Solution

A carriage assembly with a first coupling body pivotally mounted to the working arm about a first axis, a second coupling body pivotally mounted to the first coupling body about a second axis perpendicular to the first axis, and a carriage pivotally mounted to the second coupling body about a third axis perpendicular to both, allowing for movement about three planes, enhancing versatility and stability by bringing the center of gravity closer to the end of the arm.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional carriage assembly is used with limited pivoting capability, then the structure is simpler, but the manoeuvrability and versatility are insufficient

Engineering Contradiction:
ImprovemanoeuvrabilityVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The carriage assembly is divided into multiple coupling bodies (first coupling body, second coupling body) that can pivot independently about different axes. This segmentation allows each component to contribute to the overall manoeuvrability while maintaining a relatively simple individual structure, resolving the contradiction between versatility and complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces pivoting about multiple perpendicular axes (first axis, second axis, third axis) rather than limited movement in a single plane. This dimensional expansion enables three-dimensional manoeuvring capability, significantly improving versatility while the modular coupling body design keeps the structural complexity manageable.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Stability of the object's composition

If the carriage assembly is made more compact by repositioning components, then the center of gravity moves closer to the arm end improving stability, but the structural design becomes more complex

Engineering Contradiction:
ImprovestabilityVSAvoidstructural design
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The recess in the second coupling body receives the extended portion of the first coupling body in a spatial arrangement that brings the center of gravity closer to the arm end. This three-dimensional spatial optimization achieves improved stability while the recess design itself is a relatively simple structural feature that doesn't significantly increase complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP4015441B1A carriage assembly
Publication Date: 2024.02.28 J C BAMFORD EXCAVATORS LTD
  • EP4015441B1 patent drawingFigure 1
  • EP4015441B1 patent drawingFigure 2
  • EP4015441B1 patent drawingFigure 3

AI summary

A carriage assembly for a working machine, the assembly having a first coupling body pivotally mountable to a working arm to rotate about a first axis, a second coupling body pivotally mounted to the first coupling body to rotate about a second axis, and carriage for a working implement pivotally mounted to the second coupling body to rotate about a third axis.