Rotating Marking Material Container for Road Marking Machines

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Solution Overview

Problem

Existing marking machines face high flow resistance and handling difficulties due to the large angular range of the connection between the swivel arm and the marking material container, which limits marking speed and complicates operation, and also lack space for essential components like burners and combustion chambers, affecting driving stability and tipping safety.

Innovation Solution

The marking material container is mounted to rotate relative to the chassis about a vertical axis, allowing the unit of the container, marking material line, and extruder to be rotated together, reducing flow resistance and simplifying handling by maintaining the extruder's position relative to the container, with features like a rotary drive for easy rotation and a locking mechanism for consistent marking lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a swivel arm with large angular range is used to connect the extruder to the marking material container, then the extruder can be positioned on both left and right sides of the marking machine, but this creates high flow resistance for the marking material

Engineering Contradiction:

Improveextruder positioning rangeVSAvoidflow resistance

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The system is divided into a fixed marking material container mounted on the chassis and a movable extruder unit that can be independently positioned on either side of the machine. This segmentation allows the container to remain stationary (minimizing flow resistance) while the extruder provides the needed versatility for bidirectional marking operations.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the swivel arm is positioned horizontally to allow extruder rotation, then the extruder can be aligned in different directions, but this makes handling the marking machine difficult when swiveling the arm

Engineering Contradiction:

Improveextruder alignment capabilityVSAvoidhandling difficulty

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Instead of rotating the entire swivel arm assembly horizontally as in conventional designs, the invention inverts the approach by keeping the container fixed and allowing the extruder unit to be independently positioned and oriented. This reversal of the conventional configuration simplifies handling while maintaining alignment capability.

Inventive Principle:

Principle #13The other way round (Inversion)

3Adaptability or versatility

If a vertical swivel axis is used for the marking material container, then the extruder can be positioned laterally, but this leaves no space under the container for burners and combustion chambers

Engineering Contradiction:

Improvelateral extruder positioningVSAvoidspace under container

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The system separates the marking material container (fixed on chassis with space for burners) from the extruder unit (movable to lateral positions). This segmentation allows the container to be positioned optimally for thermal processing component accommodation while the extruder provides lateral positioning versatility through independent movement.

Inventive Principle:

Principle #1Segmentation

4Volume of stationary object

If the marking material container is positioned higher to accommodate space under it, then there is room for burners and combustion chambers, but this reduces driving stability and tip-over resistance

Engineering Contradiction:

Improvespace for thermal processing componentsVSAvoiddriving stability

Core Design Contradiction:

Volume of stationary objectVSStability of the object's composition

Solution Approach 1:

The marking material container is positioned at an optimal height that maintains good driving stability and tip-over resistance. By keeping the container low and fixed on the chassis, the center of gravity remains favorable for stability, while the extruder unit's independent positioning capability provides the needed versatility without compromising stability.

Inventive Principle:

Principle #12Equipotentiality

Data Source

PatentEP3492657B1Marking machine for creating marking lines on road surfaces

Publication Date: 2020.07.22 HOFMANN MASCHFAB & VERTRIEB

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AI summary

Marking machine (1) for producing marking lines (50) from flowable marking material on traffic surfaces (5), such as roads, with a chassis (10) and with at least one extruder (4) that can be guided over the surface (5) to be marked, wherein the extruder (4) has at least one outlet opening (41) which can be supplied with the marking material from at least one marking material container (12) arranged on the chassis (10) by means of at least one marking material pump (3) via at least one marking material line (2), and wherein the extruder (4) is adjustable in its position transverse to a direction of movement (15) of the marking machine (1). The marking material container (12) is mounted on the chassis (10) so as to be rotatable about a vertical axis of rotation (13) relative to the chassis (10) and, together with the marking material container (12), the marking material line (2) and the extruder (4) are rotatable relative to the chassis (10).