Retractable Control Panel Layout for Vandal-Resistant Soil Machines

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Solution Overview

Problem

Soil cultivation machines, such as road milling machines, face increasing vandalism issues when unattended, with unauthorized individuals attempting to access and damage sensitive control panels.

Innovation Solution

The control panel is designed to be moved into a stowed position where it is covered by a section of the desk body, made from a robust yet lightweight material like ASA-ABS composite, with a foamed plastic base for vibration damping, and a locking cover to secure it, making unauthorized access difficult. Additionally, the control panel can be partially exposed for limited operation, and a convection heating system provides comfort to the operator.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the control panel is made accessible and movable for operator convenience, then ease of operation is improved, but vulnerability to vandalism increases

Engineering Contradiction:
Improvecontrol panel accessibilityVSAvoidvandalism risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The control panel is designed to be dynamically repositionable between an extended operating position and a retracted protected position. The panel can be moved along a guide rail and rotated about a pivot axis, allowing it to transition between accessibility for the operator and protection when not in use. This dynamic positioning resolves the contradiction by making the panel accessible when needed but protected when idle.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control panel is nested within the console body structure. When retracted, the panel is housed inside the console body, which provides physical protection against vandalism. The nested arrangement allows the panel to be stored securely within the larger console structure, reducing exposure to harmful factors while maintaining full accessibility when extended.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the control panel is extended for full operation, then ease of operation is improved, but exposure to damage increases

Engineering Contradiction:
Improvecontrol element accessibilityVSAvoidresistance to vandalism
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The control panel's position is dynamically adjustable between extended and retracted states. When fully extended, all control elements are accessible for operation. When retracted into the console body, the panel gains protective enclosure, increasing its resistance to vandalism. This dynamic state change allows the system to optimize between accessibility and protection based on operational needs.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If the control panel is fully protected by enclosing it, then vandalism resistance is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveprotection from vandalismVSAvoidcontrol panel accessibility
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The control panel transitions between enclosed and accessible states through controlled movement along the guide rail and rotation about the pivot axis. The panel can be quickly extended from the protected enclosed position to the accessible operating position, and vice versa. This dynamic mechanism ensures that protection and accessibility are not mutually exclusive but can be switched as needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control panel is preliminarily positioned in the retracted protected state during periods when not in use, before any operational need arises. This preliminary protective positioning prevents vandalism during unattended periods, and the panel can be quickly deployed to the extended position when operation is required, minimizing the time spent in vulnerable states.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution significantly increases vandalism resistance by making the control panel less accessible and providing operational functionality while protecting sensitive components, thereby deterring vandalism and enhancing operator comfort.

Implementation Method 1

a foamed plastic base for vibration damping

Methodology Applied
Scientific EffectVibration damping: Damping

Implementation Method 2

a convection heating system provides comfort to the operator

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP3498918B2Soil-working machine with control panel with improved protection against vandalism
Publication Date: 2025.01.01 WIRTGEN GMBH
  • EP3498918B2 patent drawingFigure 1
  • EP3498918B2 patent drawingFigure 2
  • EP3498918B2 patent drawingFigure 3

AI summary

A soil cultivation machine (10), such as a road milling machine (10), recycler, stabilizer, or surface miner, with a chassis (22) and a machine frame (12) supported by the chassis (22), has a working device (32) for soil cultivation, wherein a driver's platform (24) with a control panel (26) for controlling at least one functional device (32) of the soil cultivation machine (10) is provided on the machine frame (12), wherein the control panel (26) has a console body (52) and a control panel (54, 66) movable relative to the console body (52) with at least one control element (58) assigned or assignable to a functional device (32, 39) for its control, wherein the control panel (54, 66) can be moved into a stowed position in which the at least one control element (58) is covered by a section (56a, 72a) of the console body (52) is covered, wherein the operating panel (54, 66) can be moved from the stow position to an operating position,in which at least one control element (58) is uncovered and therefore accessible for operation by a machine operator.