Integrated Gravel Hopper and Roller for Confined Spaces
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Solution Overview
Problem
Existing vehicles for laying and compacting gravel are unsuitable for small, hard-to-reach areas, requiring manual labor and multiple stages, which are arduous and time-consuming.
Innovation Solution
A motor vehicle with a hopper mounted at the front and a compaction roller at the rear, allowing simultaneous gravel deposition and compaction in a single pass, using a hopper with controlled gravity flow and actuators for precise gravel distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual gravel shoveling operations are used in confined spaces, then the surfacing can be completed in small areas, but the labor intensity increases and the operation time increases
Solution Approach 1:
The patent combines the gravel distribution function (hopper) and the compaction function (roller) into a single integrated vehicle. The hopper is mounted at the front to deposit gravel, while the roller is mounted at the rear to compact the gravel simultaneously during a single pass through the confined space. This eliminates the need for separate manual operations or multiple vehicles, thereby reducing both labor intensity and operation time while maintaining adaptability to confined areas.
2Ease of manufacture
If separate gravel truck and compactor are used, then gravel deposition and compaction can be performed, but the vehicle dimensions are too large for confined spaces
Solution Approach 1:
The invention merges two separate vehicles (gravel truck and compactor) into one integrated vehicle. The hopper for gravel deposition is mounted at the front, and the compaction roller is mounted at the rear on the same vehicle chassis. This combined design maintains the full functionality of both gravel deposition and compaction while reducing the overall vehicle dimensions to fit confined spaces such as courtyards, alleys, and narrow corridors.
3Ease of operation
If reverse movement is used to deposit asphalt, then the hopper can release material, but the trajectory control and deposit precision are reduced
Solution Approach 1:
Instead of moving the vehicle in reverse to deposit material (as in conventional asphalt depositors), this invention moves the vehicle forward in the normal driving direction. The hopper is positioned at the front and deposits gravel as the vehicle moves forward, while the compaction roller follows at the rear. This forward movement approach maintains better trajectory control and deposit precision while simplifying the operation.
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
Facilitates quick and mechanized gravel spreading and compaction in confined spaces, reducing labor intensity and operation time.
Implementation Method 1
sufficient pressure to be exerted, directed substantially vertically and from top to bottom, on the asphalt deposit which is suitable for allowing its compaction
Implementation Method 2
The hopper is adapted to contain the asphalt to be deposited in a layer and to be able to release the asphalt onto the surface by tilting the hopper along the pivot axis of the hopper
Data Source
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AI summary
The invention relates to a motorized device (1) for depositing gravel on at least part of a ground and compacting the gravel thus deposited on the ground, the device (1) comprising: - at least one roller (2) for compacting the ground; - a hopper (5) for storing gravel and depositing the gravel contained in the hopper (5) on the ground by controlled gravity flow of the gravel from the hopper (5); the hopper (5) being mounted integrally with the device (1) and extending in front of said at least one roller (2) in the direction of movement of the device (1) and in such a way as to allow in a single pass of the device (1) and due to the movement of the device (1), a deposit of gravel on the ground and a compaction of the gravel spread on the ground by the roller (2).