Tipper Cargo Box Tailboard Layout for Ramp Loading and Spill Control
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Solution Overview
Problem
Existing cargo box designs for tipper lorries require high tailboards due to side-mounted actuators, limiting loading space and preventing the use of openable or hydraulic boards, and result in cargo spillage during unloading.
Innovation Solution
A vehicle cargo box design with actuators positioned below the box, allowing a tiltable tailboard and tail door mechanism that forms a ramp platform, eliminating the need for side-mounted actuators and enabling increased loading space and spill-proof unloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If actuators are mounted on the sides of the cargo box at high positions, then the tailboard can be driven to form a ramp platform, but the loading space is reduced and high boards are required
Solution Approach 1:
The actuators are relocated from the lateral dimension (side mounting) to the vertical dimension (underneath mounting). This dimensional shift allows the actuators to operate below the cargo box floor level, eliminating their occupation of lateral loading space while maintaining their function of driving the tailboard to form a ramp platform.
Solution Approach 2:
Instead of mounting actuators on the outside sides of the cargo box as in conventional designs, the invention inverts the mounting approach by positioning them underneath the cargo box. This inversion allows the actuators to work from below, connecting to the tailboard's lower edge rather than its upper edge, thereby resolving the space conflict.
2Ease of operation
If actuators are mounted on the sides of the cargo box, then the tailboard can be driven, but openable boards and hydraulic boards cannot be used due to collision with actuators
Solution Approach 1:
By moving the actuators from the lateral dimension to the vertical dimension (underneath mounting), the invention creates clear lateral space for the tailboard to move freely. This enables openable boards and hydraulic boards to operate without collision, as their movement paths are no longer obstructed by laterally positioned actuators.
3Ease of operation
If high boards are used to accommodate side-mounted actuators, then the actuators can be mounted, but cargo spillage occurs during unloading
Solution Approach 1:
The invention inverts the mounting approach by positioning actuators underneath the cargo box rather than on the sides. This allows the use of lower boards that properly seal the cargo box, preventing cargo spillage during unloading while still enabling actuator function for tailboard movement.
4Ease of operation
If actuators are positioned on the sides of the cargo box, then the tailboard can be driven, but the loading space is unnecessarily reduced
Solution Approach 1:
The actuators are repositioned from the lateral dimension to the vertical dimension, operating underneath the cargo box. This eliminates their occupation of lateral loading area, maximizing the loading space while maintaining tailboard actuation capability through connection to the tailboard's lower edge.
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
Enables efficient use of tiltable boards, prevents cargo spillage, and maximizes loading capacity by positioning actuators beneath the box, facilitating seamless transition to a ramp platform without occupying valuable space.
Implementation Method 1
provided with a tail door tiltable by means of actuators situated under the bottom of the cargo box from a position of pressing against the tailboard to its tilted position
Implementation Method 2
the tail door is temporarily fixedly coupled with the tailboard, causing its tilting motion around an axis of rotation situated along the lower edge of the tailboard
Implementation Method 3
it is a straight board which drops due to gravity and requires locking in order to achieve the closed position
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to a vehicle cargo box, in particular for a tipper lorry, having two sideboards and a substantially fixed front board, provided in its rear part with a tailboard tiltable around the axes of rotation situated in the upper, corner elements of both sideboards, when the box is in the phase of skipping the cargo placed therein, and alternatively tiltable around the axes of rotation situated near the lower, corner elements of both sideboards, when the tailboard along with ramp doors hingedly connected thereto at its upper edge forms a ramp platform provided for driving thereon the equipment intended for placement in the cargo box for the duration of transporting this equipment, and moreover provided with a tail door tiltable by means of actuators situated under the bottom of the cargo box from a position of pressing against the tailboard to its tilted position, when the tailboard is in the skipping position and at the same time performs a tilting motion around an axis of rotation situated along the upper edge of the tailboard. The essence of the invention is in that the tail door (7) is temporarily fixedly coupled with the tailboard (2), causing its tilting motion around an axis of rotation (4) situated along the lower edge of the tailboard (2), when it is brought into the position of the ramp platform. The tail door (7) is connected to the actuators (8) by means of coupling arms (10).