Dumper Vehicle Container with Lowered Front Extent
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Solution Overview
Problem
Dumper vehicles face issues with impaired operator visibility due to the position of the skip and stability problems during maneuvering, especially when loaded, as the operator's position cannot be raised to improve visibility and the vehicle becomes unstable if not operated according to manual guidelines.
Innovation Solution
A dumper vehicle design featuring a container with a decreasing upper extent towards the front, mounted on a lower front chassis, which increases operator visibility and stability by lowering the center of gravity, combined with a flat lower surface and inclined surfaces to optimize load capacity and residual material reduction, and an operator seat that can be adjusted for improved line of sight and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the operator's position is raised to improve visibility over the skip, then visibility is improved, but the vehicle becomes unstable
Solution Approach 1:
Instead of raising the operator's position to improve visibility, the invention inverts the approach by lowering the skip's position. The skip is mounted on a front chassis that is positioned lower than the main chassis, allowing the operator to maintain a stable seating position while achieving improved visibility over the skip through its lowered position.
2Productivity
If the skip is positioned in front of the operator, then loading efficiency is improved, but the operator's forwards visibility is impaired
Solution Approach 1:
The invention resolves the visibility issue by introducing a vertical dimension solution. Instead of moving the skip horizontally behind the operator, the skip is positioned in front but lowered vertically on a separate front chassis. This dimensional change allows the operator to see over the lowered skip while it remains in the efficient front-loading position.
3Ease of manufacture
If the container height is uniform throughout, then manufacturing is simplified, but operator visibility over the container is reduced
Solution Approach 1:
The container is designed with varying height characteristics - the front portion of the container is lower than the rear portion. This local quality variation improves operator visibility over the front section of the container while maintaining sufficient height at the rear for load capacity. The side walls are inclined to achieve this height variation.
Data Source
AI summary
A dumper vehicle includes: a frame comprising a front end and a rear end; front and rear wheels mounted to the frame; an operator seat mounted to the frame; and an open topped container for carrying a load therein mounted to the frame between the front and rear wheels, wherein the container is moveable between a transport position for transporting a load and a discharge position for discharging of a load; wherein the container defines an upper extent thereof, and wherein said upper extent of the container decreases in height with respect to a lower extent of the wheels towards the front end of the frame, when the container is in the transport position.