Mine-Clearing Grapple With Reversible Mounting for Remote Excavation

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Solution Overview

Problem

Existing mine clearance operations pose significant risks to operators due to explosions from mines and explosive devices, and traditional tools or vehicles used for mine removal can cause damage to equipment and vehicles.

Innovation Solution

A mine-clearing grappling hook with adjustable teeth or claws, attached to a support structure, is designed for reversible attachment to a manipulator tool on a vehicle, allowing safe and controlled excavation of mines from a distance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If operators use traditional manual tools or pseudo-grappling hooks to clear mines, then they can access and remove mines from the ground, but their physical integrity is seriously compromised due to explosion risks

Engineering Contradiction:
Improvemine removal capabilityVSAvoidoperator safety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a robotic manipulator arm as an intermediary between the operator and the mine clearance task. The manipulator arm with interchangeable end effectors performs the dangerous mining removal operations, allowing operators to work from a safe distance while maintaining effective mine clearance capability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces manual mechanical tools with an automated robotic system. The manipulator arm with motorized control substitutes for manual operation, enabling precise and controlled mine removal while eliminating direct human exposure to explosion hazards

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

2Productivity

If mine-clearing devices with blades are used to scrape the field, then mines can be unearthed, but the risk of explosion causes substantial damage to the mine-clearing vehicle

Engineering Contradiction:
Improvemine excavation speedVSAvoidvehicle integrity
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The patent divides the mine clearance function into separate modular components: the manipulator arm system, the interchangeable end effectors (including grappling hooks and blades), and the vehicle platform. This segmentation allows the vehicle to remain stationary and armored while the manipulator arm performs the dangerous scraping and excavation operations at a distance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from ground-level vehicle operation to aerial manipulator operation. The manipulator arm extends the operational workspace vertically and horizontally away from the vehicle body, allowing mine clearance operations to be performed from a safe distance above and away from the vehicle, thus protecting the vehicle from explosion damage

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

3Ease of operation

If operators position themselves close to mines to access neutralization devices, then mine neutralization can be performed, but the risk of explosion seriously compromises physical integrity

Engineering Contradiction:
Improveaccess to neutralization deviceVSAvoidoperator physical integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The manipulator arm serves as a mechanical intermediary that extends the operator's reach. By attaching end effectors directly to the manipulator arm, operators can position the tool tip close to mines for neutralization while the operator remains at a safe distance on the vehicle

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a universal manipulator arm system that can accept multiple types of end effectors including grappling hooks for mine retrieval, blades for scraping, and neutralization devices. This multi-functional system allows operators to perform various mine clearance operations from a single platform, maintaining safety while providing comprehensive operational capability

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

Data Source

PatentEP4671671A1Mine clearing grapple and mine clearing vehicle integrating such a grapple
Publication Date: 2025.12.31 CNIM SYST IND
  • EP4671671A1 patent drawingFigure 1~3
  • EP4671671A1 patent drawingFigure 4~7
  • EP4671671A1 patent drawingFigure 8~9

AI summary

This mine-clearing grapple (1) is equipped with at least one tooth or claw (16, 17), designed to grip an object, particularly a mine. This at least one tooth or claw (16, 17) is attached to a support structure (2, 3), which is equipped with reversible attachment means (10, 11) for use with a manipulator tool, particularly one mounted on a vehicle.