Modular Festoon Cable Rail Sections for Flexible Mine Reach

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Solution Overview

Problem

Existing festoon systems for mounting cables on a rail in a festoon-fashion are inflexible in length and cumbersome to move, making it difficult to reach all areas of a mine and requiring the entire system to be moved simultaneously.

Innovation Solution

A modular festoon system comprising a series of festoon sections, each with a front trolley for driving along the rail and multiple cable trolleys with saddles for supporting cables, connected by tension elements. Each festoon section can be moved individually and adapted to the required length, with detachable coupling elements allowing sections to be easily connected and disconnected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the festoon system uses a fixed length design to reach distant areas, then the maximum supply distance is improved, but the system becomes too long for close by branches and cumbersome to move

Engineering Contradiction:
Improvemaximum supply distanceVSAvoidflexibility in length
Core Design Contradiction:
Length of moving objectVSAdaptability or versatility

Solution Approach 1:

The festoon system is divided into multiple individual festoon sections that can be used separately or combined. Each section has its own front trolley and cable trolleys, allowing the system to be configured in different lengths by selecting the appropriate number of sections, thus resolving the contradiction between reaching distant areas and adapting to close by branches.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If the festoon system is designed as a complete unit to maintain cable organization, then cable management is improved, but the system becomes cumbersome to relocate as the whole system must be moved

Engineering Contradiction:
Improvecable organizationVSAvoidease of relocation
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The festoon system is segmented into modular sections that can be relocated independently. Each section maintains its internal cable organization through the front trolley and cable trolley arrangement, while the ability to move sections separately improves ease of relocation compared to moving the entire system as one unit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cable trolleys are arranged along the rail within each festoon section, with cables nested in an orderly fashion between the front trolley and cable trolleys. This nesting arrangement maintains cable organization within each modular section while allowing the sections to be moved independently.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Length of moving object

If the festoon system uses a long retracted state to achieve long extended length, then the maximum supply distance is improved, but the retracted state requires excessive rail space and is difficult to store

Engineering Contradiction:
Improvemaximum supply distanceVSAvoidretracted state length
Core Design Contradiction:
Length of moving objectVSLength of stationary object

Solution Approach 1:

The festoon system is divided into multiple sections that can be stored separately in their retracted states. Each section has a manageable retracted length that fits within available rail space, while multiple sections can be combined to achieve the required maximum supply distance when deployed.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4497711A1Festoon system for mounting cables
Publication Date: 2025.01.29 SANDVIK MINING & CONSTR GMBH
  • EP4497711A1 patent drawingFigure 1a~1d
  • EP4497711A1 patent drawingFigure 2a
  • EP4497711A1 patent drawingFigure 2b~2c

AI summary

The invention concerns a festoon system for mounting cables (5) on a rail (26) in a festoon-fashion, comprising: a series of festoon sections (1), wherein each one of the series of festoon sections (1) comprises: a front trolley (2) for driving along the rail (26), adapted to be moveably mounted on the rail (26), a number of cable trolleys (3) adapted to be moveably mounted on the rail (26), wherein each of the number of cable trolleys (3) comprises a saddle (4) for supporting a cable (5), a tension element (6) which connects the front trolley (2) and the number of cable trolleys (3) of the respective one of the series of festoon sections (1).