Movable Upper Deck Truck Trailer for Height-Restricted Loading
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Solution Overview
Problem
The height restrictions in some countries, such as those in continental Europe, limit the loading capacity of truck trailers by restricting the height of the upper and lower cargo areas, making it difficult to load cargo onto trailers with split decks that are positioned below or above the standard dock elevation.
Innovation Solution
A truck trailer design featuring upper and lower decks that can be independently loaded, with the lower deck extending between the wheels and the upper deck adjustable to align with the dock elevation, utilizing a rear cargo lift and actuated platforms to facilitate loading and unloading from standard shipping and receiving docks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the upper deck is positioned at a fixed elevation to maximize cargo capacity, then the trailer capacity is improved, but the difficulty of loading and unloading cargo increases when the deck elevation does not align with standard dock elevation
Solution Approach 1:
The upper deck is made movable vertically through actuation mechanisms (hydraulic or electric actuators) that allow the deck to transition between different elevations. This dynamic adjustment capability enables the deck to align with standard dock elevation during loading/unloading operations while maintaining optimized cargo capacity when positioned at the raised elevation.
2Quantity of substance
If the trailer is designed with split decks to maximize capacity under height restrictions, then the cargo capacity is improved, but the complexity of the loading and unloading system increases
Solution Approach 1:
The loading and unloading functions for both the upper and lower decks are merged into a single integrated system. The movable upper deck shares the same actuation mechanisms and control system, allowing both decks to be loaded and unloaded through coordinated movement of the upper deck and the rear cargo lift, thereby reducing overall system complexity.
Solution Approach 2:
The movable upper deck serves multiple functions: it acts as a cargo platform when raised, provides access to the lower deck when lowered, and can be positioned at different elevations to accommodate various loading scenarios. This multi-functionality reduces the need for separate specialized equipment for each deck.
3Ease of operation
If the upper deck is made movable to align with dock elevation, then the ease of loading and unloading is improved, but the device complexity increases
Solution Approach 1:
The movable upper deck system incorporates self-positioning capabilities through sensors and control mechanisms that automatically detect the dock elevation and adjust the deck position accordingly. The system can autonomously navigate between predefined elevation positions, reducing the need for complex manual control mechanisms.
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 design allows for efficient loading and unloading of cargo across multiple decks, maximizing trailer capacity while adhering to height restrictions, reducing the need for additional equipment and improving operational efficiency.
Implementation Method 1
an actuator that is configured to raise the upper cargo deck from a first elevation to a second elevation and lower the upper cargo deck from the second elevation to the first elevation
Data Source
AI summary
In one embodiment, a truck trailer has a cargo container that defines a cargo area therein. The trailer has a rear cargo lift having a platform disposed within the cargo area at a rear end of the trailer. The platform is vertically movable between a floor of the trailer and a first elevation that is above the floor. The trailer has an upper cargo deck supported within a portion of the cargo area that is between the rear lift and a front end of the trailer. The upper cargo deck divides the portion of the cargo area into upper and lower areas. The upper cargo deck can align with the rear cargo lift at the first elevation so as to receive cargo into the upper area, and translate the cargo to a second elevation that is above the first elevation so as to receive cargo in the lower area.