Road Paver Material Container Viewing Indentation

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Solution Overview

Problem

Road pavers face challenges in maintaining a clear operator view when the material container is in the filling position, leading to reduced precision in steering due to obstructed visibility of the ground and travel units, and existing solutions like camera systems are costly and ineffective.

Innovation Solution

A viewing indentation is created in the material container, allowing the operator to see critical ground areas and travel units through a recess in the rear wall and floor, providing an unobstructed view without significantly reducing the container's capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the material container is extended to maximum capacity in the filling position, then the receiving capacity of the material container is maximized, but the operator's view of the ground and front travel units is blocked

Engineering Contradiction:
Improvereceiving capacity of material containerVSAvoidoperator's view of ground and travel units
Core Design Contradiction:
Quantity of substanceVSLoss of information

Solution Approach 1:

The material container is segmented by creating a viewing indentation that divides the container structure into sections, allowing light to pass through the indentation to provide the operator with a view of the ground and travel units while maintaining the overall container integrity and maximum capacity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The viewing indentation acts as an intermediary structure that allows visual information to pass through the material container from the operator's position to the ground level, enabling the operator to see critical areas without moving the container from its optimal filling position

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If the container halves are moved out of the filling position to improve visibility, then the operator's view is improved, but the receiving capacity of the material container is reduced and material may fall out

Engineering Contradiction:
Improveoperator's view of groundVSAvoidreceiving capacity of material container
Core Design Contradiction:
Loss of informationVSQuantity of substance

Solution Approach 1:

The viewing indentation creates a segmented view path through the container structure, allowing the operator to maintain the container in the filling position while still obtaining visual information about the ground and travel units through the indentation opening

Inventive Principle:
Principle #1Segmentation

3Loss of information

If camera systems are installed to improve operator view, then visibility is improved, but manufacturing costs increase significantly

Engineering Contradiction:
Improveoperator's view of groundVSAvoidmanufacturing cost
Core Design Contradiction:
Loss of informationVSEase of manufacture

Solution Approach 1:

The viewing indentation extracts only the necessary visual information path through the material container structure, removing the need for expensive camera systems while maintaining the simplicity and low cost of the original mechanical container design

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The viewing indentation provides a simple, low-cost optical solution using the existing container structure rather than expensive electronic camera systems, achieving the same functional goal at minimal manufacturing cost

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS10407843B2Road paver with viewing indentation in material container
Publication Date: 2019.09.10 BOMAG GMBH
  • US10407843B2 patent drawing
  • US10407843B2 patent drawing
  • US10407843B2 patent drawing

AI summary

A road paver for paving paving material in a paving direction (a) is provided comprising a machine frame, a driver's platform, a drive motor, a chassis with at least a left travel unit and a right travel unit, a material container arranged at the front of the road paver in the paving direction (a) for receiving paving material, the material container comprising a left container half and a right container half, which each have a container floor, a rising container sidewall and a rising container rear wall, and a longitudinal conveying device configured to transport paving material from the material container to a paving screed arranged at the rear of the road paver in the paving direction.