Height-Adjustable Operating Platform for Compact Paver Visibility

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Solution Overview

Problem

Compact pavers often operate in spatially restricted environments with low ceilings, where operators have suboptimal viewing conditions, making it difficult to monitor and control the paving process effectively.

Innovation Solution

The operating platform of the compact paver is designed to be height-adjustable, coupled with the paving screed and transverse distribution device, allowing adjustments based on paving thickness and mode, eliminating the need for separate operator adjustments and enhancing visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the operating platform is fixed at a low position to maintain compact machine structure, then the machine structure remains simple and compact, but the operator's viewing conditions deteriorate in spatially restricted environments with low ceilings

Engineering Contradiction:
Improveoperator's viewing conditionsVSAvoidmachine structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The operating platform is made height-adjustable through coupling with the paving screed's height adjustment mechanism. This dynamic configuration allows the platform to adapt its height based on paving thickness requirements, improving operator viewing conditions without requiring a permanently complex structure. The platform transitions from a fixed to a variable position system.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The height adjustment mechanism serves multiple functions: it adjusts both the paving screed height for different paving thicknesses and the operating platform height for optimal operator viewing. This multi-functionality eliminates the need for separate adjustment mechanisms, maintaining structural simplicity while improving operational flexibility.

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

2Ease of operation

If a separate height adjustment mechanism is provided for the operating platform, then the operator's viewing conditions improve, but the device complexity and handling burden increase

Engineering Contradiction:
Improveoperator's viewing conditionsVSAvoidnumber of adjustment mechanisms
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The operating platform's height adjustment is merged with the paving screed's height adjustment mechanism. Both functions share the same actuation system, reducing the total number of independent adjustment mechanisms from two to one. This combination maintains simple handling while achieving dual functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single height adjustment mechanism performs dual functions: adjusting the paving screed for different paving thicknesses and simultaneously adjusting the operating platform height for optimal operator viewing. This universal mechanism eliminates the need for separate controls, simplifying the overall system.

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

3Ease of operation

If the operating platform height is independently adjustable, then the operator can optimize viewing conditions, but the handling complexity and adjustment time increase

Engineering Contradiction:
Improveviewing condition optimizationVSAvoidadjustment time
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The height adjustment for the operating platform is combined with the paving screed adjustment operation. When the operator adjusts the paving thickness, the platform height is simultaneously optimized, eliminating the need for a separate adjustment step. This merging of operations reduces total adjustment time while maintaining optimal viewing conditions.

Inventive Principle:
Principle #5Merging (Combining)

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

This configuration provides the operator with an improved overview of the working environment, simplifying handling and ensuring optimal viewing conditions in various scenarios without the burden of additional height adjustments.

Implementation Method 1

A cylinder-piston unit is generally provided for this purpose, which connects the towing arms in the rear area and/or to the paving screed itself for the purposes of the height adjustment in relation the machine frame

Methodology Applied
Scientific EffectHydraulic or pneumatic pressure: Hydraulic Press

Implementation Method 2

the height adjustment of the operating platform is coupled to a height adjustment of the paving screed and/or a height adjustment of the transverse distribution device

Methodology Applied
Scientific EffectMechanical coupling: Mechanical Advantage

Implementation Method 3

The longitudinal conveying device can be, e.g., a scraper conveyor or something similar arranged essentially in the middle in relation to the receiving container

Methodology Applied
Scientific EffectMechanical conveyance: Archimedes Screw

Implementation Method 4

The transverse distribution device, in particular a known screw conveyor, which is in particular rotatable about a horizontal axis of rotation transverse to the working direction, permits a transverse distribution of the paving material

Methodology Applied
Scientific EffectRotational distribution: Archimedes Screw

Implementation Method 5

a paving screed that is height-adjustable in relation to the machine frame for compacting and smoothing the transversally distributed paving material

Methodology Applied
Scientific EffectMechanical compaction: Compression

Data Source

PatentUS10718092B2Compact paver and method for operating a compact paver
Publication Date: 2020.07.21 BOMAG GMBH
  • US10718092B2 patent drawing
  • US10718092B2 patent drawing
  • US10718092B2 patent drawing

AI summary

A height-adjustable operating platform of a compact paver comprising a machine frame, a drive motor, travel units, a receiving container at the front in relation to the paving direction for receiving paving material, a longitudinal conveying device with which the paving material can be conveyed from the receiving container in a rearward direction in relation to the paving direction, a transverse distribution device that is height-adjustable in relation to the machine frame and with which the paving material can be distributed on the ground surface transversally to the paving direction, a paving screed that is height-adjustable in relation to the machine frame for compacting and smoothing the paving material distributed on the ground surface behind the transverse distribution device in the paving direction, an operating platform mounted on the machine frame and arranged behind the receiving container in the paving direction and a method for operating a compact paver.