Hydraulic Hose Bundle Frames for Faster Work Machine Replacement

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Solution Overview

Problem

The replacement of hydraulic hoses in mining and construction operations is time-consuming due to the complexity and number of components involved.

Innovation Solution

A replacement kit comprising bundles of hydraulic hoses with support frames and connectors, along with a method for attaching and detaching these frames near the work machine, allowing for quick and efficient hose replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If hydraulic hoses are replaced individually without pre-arrangement, then the replacement process becomes simple and flexible, but the time required for replacement increases significantly

Engineering Contradiction:
Improvereplacement timeVSAvoidkit structure complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-arranging multiple hydraulic hoses in bundles on support frames before transport to the work site. The hoses are pre-positioned and organized in the carrier according to the replacement sequence, so that when a hose needs replacement, the entire bundle is already prepared and can be quickly installed without time-consuming on-site arrangement.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the hydraulic hose replacement system into modular bundles, each containing specific hoses arranged on individual support frames. These segmented bundles are organized in a carrier according to replacement priority, allowing systematic and efficient replacement by processing one segment at a time rather than handling all hoses individually.

Inventive Principle:
Principle #1Segmentation

2Productivity

If hydraulic hoses are transported separately without organization, then the transport is flexible, but the installation process becomes time-consuming and complex

Engineering Contradiction:
Improvereplacement efficiencyVSAvoidinstallation ease
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The support frames are used to pre-arrange and pre-position the hydraulic hoses in their correct spatial relationships before transport. This preliminary arrangement ensures that when the bundles are delivered to the work site, the hoses are already in the correct configuration for installation, eliminating the need for time-consuming on-site arrangement and improving both productivity and ease of operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent merges multiple hydraulic hoses into organized bundles on common support frames. By combining related hoses into integrated units that maintain their spatial relationships, the system improves handling efficiency during transport and installation, making the replacement process more productive and easier to execute.

Inventive Principle:
Principle #5Merging (Combining)

3Shape

If multiple hoses are bundled together without support structure, then the kit size is reduced, but the hoses lose their correct spatial shape and positioning

Engineering Contradiction:
Improvebundle shapeVSAvoidkit volume
Core Design Contradiction:
ShapeVSVolume of stationary object

Solution Approach 1:

The support frames act as rigid structural shells that maintain the three-dimensional spatial arrangement of the hydraulic hoses within the bundles. These frames provide the necessary geometric support to preserve the correct shape and positioning of hoses while allowing the entire assembly to be compactly organized in the carrier, balancing shape preservation with space efficiency.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP4038243B1Replacement hydraulic hose kit for a work machine and method of replacing a hydraulic harness of a work machine
Publication Date: 2026.03.18 SANDVIK MINING & CONSTR OY
  • EP4038243B1 patent drawingFigure 1a~1d
  • EP4038243B1 patent drawingFigure 2~5
  • EP4038243B1 patent drawingFigure 6a~6b

AI summary

A replacement kit for a work machine, and a method of replacing a hydraulic harness. The replacement kit comprises a replacement kit (100) for a work machine, comprising at least one bundle (1) of hydraulic hoses (2), the bundle comprising at least two hydraulic hoses (2), and connectors (3) for connecting to the work machine at the ends of hydraulic hoses (2). The kit (100) further comprises a support frame (4), comprising releasable attaching means (5) arranged to attach the bundle (1) in the support frame (4) and to keep the bundle (1) in said support frame (4) in a shape that corresponds to the shape of the bundle when attached in the work machine (W).