Extendable Cargo Trailer Frame with Pivoting Loading Section
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Solution Overview
Problem
Existing cargo trailers with extendable loading surfaces require cumbersome assembly and additional lighting systems, increasing complexity and manual effort for users.
Innovation Solution
A cargo trailer design featuring an extendable section with a pivotally articulated frame, sliding rail systems, and gas springs for easy deployment and retraction, allowing the loading surface to be increased with minimal effort and without the need for separate lighting systems, with integrated guiding and damping means for smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If an extendable section is added to increase loading surface area, then the useful loading area is increased, but the device complexity increases due to additional assembly requirements
Solution Approach 1:
The extendable section is made dynamically transformable through a pivotal articulation mechanism. By rotating the extendable section around a pivot point, it transforms from a horizontal loading position to a vertical storage position, enabling the loading surface area to be increased when needed and reduced when not in use, without permanent structural additions
Solution Approach 2:
The trailer structure is segmented into a main frame and a separate extendable section. This segmentation allows the extendable section to be independently manipulated through the pivotal connection, enabling it to be rotated into different positions (horizontal for loading, vertical for storage) without affecting the main frame structure
2Adaptability or versatility
If manual assembly and disassembly of extendable sections is required, then the loading surface can be adjusted, but the time required for assembly increases
Solution Approach 1:
The pivotal articulation mechanism enables dynamic transformation of the extendable section between horizontal and vertical positions through simple rotation. This eliminates the need for complex assembly and disassembly operations, allowing users to quickly adjust the loading surface area by merely rotating the section without tools or multiple steps
Solution Approach 2:
The extendable section is designed to be self-contained with its own pivotal connection mechanism, allowing it to be easily rotated into position without requiring assistance from additional components or complex assembly procedures. The section serves itself by being independently maneuverable through the pivot point
3Reliability
If additional lighting systems are placed on the extendable section, then traffic regulation compliance is achieved, but the device complexity increases
Solution Approach 1:
The additional frame that supports the extendable section is designed to serve multiple functions: it provides structural support for the extendable section, serves as the mounting base for lighting systems, and maintains alignment with the main frame. This multi-functionality eliminates the need for separate lighting structures, reducing overall device complexity while ensuring traffic regulation compliance
Solution Approach 2:
The lighting system is merged with the additional frame structure. Instead of being separate components, the lighting systems are integrated into the additional frame that already exists to support the extendable section, thereby reducing the number of separate components and simplifying the overall device structure
4Device complexity
If the trailer is designed with a single frame structure, then the structure is simple, but the useful loading surface area is limited
Solution Approach 1:
The trailer frame is segmented into a main frame and an additional frame with extendable section. This segmentation allows the loading surface area to be increased by deploying the extendable section on the additional frame, while the main frame structure remains simple and unchanged
Solution Approach 2:
The extendable section on the additional frame is designed to be dynamically adjustable between horizontal (extending loading area) and vertical (reducing to compact size) positions. This dynamic capability allows the loading surface area to be increased when needed while maintaining a simple frame structure that can be easily stored when the extension is not required
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 simple and efficient expansion of the loading surface with reduced manual effort and assembly time, while maintaining compliance with traffic regulations through integrated lighting and reduced space requirements when not in use.
Implementation Method 1
the extendable section being pivotally articulated in the additional frame by rotation means, such that the rotating movement of the extendable section is transformed into a linear forward or reverse movement of the additional frame with respect to the main frame
Implementation Method 2
the trailer can include indicator lights mounted on the rear of the additional frame, which makes it possible to comply with traffic regulations
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
Cargo trailer comprising a main frame with a drawbar (2), displacement wheels (4) linked to the main frame (1), the main frame (1) having a loading surface, the trailer including an extendable section with an additional loading surface linked to an additional frame (7) displaceable with respect to the main frame (1), the extendable section (6) being intended for extending the loading surface, such that in a functional position of the trailer, the loading surface of the frame is aligned with the additional surface, while in a second functional position, both loading surfaces are superimposed on each other, the extendable section (6) being articulated in the additional frame (7), such that the rotating movement of the extendable section (6) is transformed into a linear forward or reverse movement of the additional frame (7) with respect to the main frame (1).