Vandalism-Resistant Interface Protective Plate for Soil Working Machines

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Solution Overview

Problem

Soil tillage machines are vulnerable to vandalism, with sensitive information interface devices such as monitors and displays being easily targeted and damaged due to their ergonomic design, which protrudes for operator visibility.

Innovation Solution

An information interface device with a protective plate that has an anchoring section for secure attachment to the interface module and a latching section for releasable coverage, providing dual points of secure engagement to prevent unauthorized access and damage, featuring a robust housing design with form-fitting connections and a locking mechanism for enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the functional surface protrudes for ergonomic reasons to improve operator visibility and access, then the ease of operation is improved, but the vulnerability to vandalism increases

Engineering Contradiction:
Improveoperator visibility and accessVSAvoidvandalism vulnerability
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The protective plate is divided into functionally distinct sections: an anchoring section for permanent attachment and a latching section for releasable engagement. This segmentation allows the protective structure to provide continuous protection while maintaining operational accessibility when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The protective plate acts as an intermediary element between the vulnerable functional surface and potential vandals. It provides a sacrificial protective layer that can be anchored and latched to shield the underlying sensitive components from direct contact and damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a protective plate is added to cover the functional surface, then the security against vandalism is improved, but the device complexity increases

Engineering Contradiction:
Improvesecurity against vandalismVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The anchoring and latching functions are merged into a single integrated protective plate structure. The anchoring section and latching section are combined in one component that attaches to the housing, simplifying the overall design while providing multiple security mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The protective function is extracted as a separate removable component (protective plate) from the main housing structure. This allows the protection mechanism to be independently designed, installed, and maintained without affecting the core functional surface, thereby managing complexity effectively.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the protective plate is firmly anchored to prevent removal, then the security against vandalism is improved, but the ease of repair and maintenance deteriorates

Engineering Contradiction:
Improveprotection securityVSAvoidaccessibility for maintenance
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The protective plate transitions from a static permanently fixed structure to a dynamic system with two distinct attachment modes: firm anchoring for security and releasable latching for accessibility. This dynamic capability allows the same structure to provide both protection and maintenance access as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The latching mechanism is designed to enable preliminary preparation for maintenance by allowing the protective plate to be easily released and removed before repair activities begin, while the anchoring section maintains security during normal operation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3524461B1Vandalism-resistant information interface device for a soil working machine
Publication Date: 2021.09.22 WIRTGEN GMBH
  • EP3524461B1 patent drawingFigure 1
  • EP3524461B1 patent drawingFigure 2
  • EP3524461B1 patent drawingFigure 3

AI summary

An information interface device (27), in particular for a control station (24) of a soil cultivation machine, such as a road milling machine, recycler, stabilizer or surface miner, with an interface assembly (52) comprising a housing (54) and a functional surface (56) received in the housing (54) and designed for input and/or output of information, is characterized in that the information interface device (27) has a protective plate (58) designed separately from the interface assembly (52) for covering the functional surface (56), wherein the protective plate (58) has an anchoring section (64) with which the protective plate (58) can be anchored to a counter-anchoring section (68) of the interface assembly (52) and thus the anchoring section (64) can be secured against removal from the functional surface (56).and wherein the protective plate (58) has a locking section (66) distinct from the anchoring section (64), with which the protective plate (58) can be detachably locked onto a locking counterpart section (72) of the interface assembly (52) and thus the locking section (66) can be secured against removal from the functional surface (56).