Vehicle Loading Cart Telescoping Chassis for Uneven Docking
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Solution Overview
Problem
Existing transport and loading systems face difficulties in aligning the transport cart with the loading device, especially on uneven surfaces, leading to manual alignment challenges and cumbersome handling, particularly when loaded or used on stairs or elevators.
Innovation Solution
A transport and loading assembly with a telescoping linkage system that allows independent adjustment of the transport cart's height and alignment relative to the loading device, using multiple telescoping devices for precise height and horizontal alignment, along with a sensor arrangement for automatic adjustment and a guide aid for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transport cart is used on uneven surfaces, then the loading and unloading operation can be performed in more environments, but the alignment between the transport cart and the loading device becomes difficult
Solution Approach 1:
The patent applies the dynamics principle by implementing a height adjustment device that enables the transport cart to dynamically adapt its height to uneven surfaces. The chassis can be adjusted between multiple height positions (at least five intermediate steps) to compensate for surface irregularities, allowing the transport cart to maintain proper alignment with the loading device despite variations in the base surface elevation.
Solution Approach 2:
The patent applies the parameter changes principle by modifying the height parameter of the transport cart through the height adjustment device. By changing the height parameter in at least five discrete steps, the system can adapt to different surface conditions and maintain optimal alignment with the loading device, transforming a static height configuration into a variable one that responds to environmental conditions.
2Device complexity
If the transport cart has fixed height, then the structure is simple, but the alignment with the loading device cannot be adjusted
Solution Approach 1:
The patent transforms the static height configuration into a dynamic one by introducing a height adjustment device with multiple discrete positions. This device allows the transport cart to change its height parameter in at least five intermediate steps, enabling alignment adjustment with the loading device while maintaining a relatively simple structural design through the use of stepped adjustment rather than continuous variation.
3Device complexity
If manual alignment is used, then the device complexity is low, but the handling becomes cumbersome especially when loaded
Solution Approach 1:
The patent applies the self-service principle by implementing an automatic height adjustment mechanism that autonomously aligns the transport cart with the loading device. The control unit automatically actuates the height adjustment device to position the transport cart at the appropriate height level, eliminating the need for manual alignment operations and reducing handling effort, especially when the transport cart is loaded.
4Adaptability or versatility
If the chassis is extended for transport, then the transport capability is improved, but the loading into the vehicle becomes difficult
Solution Approach 1:
The patent applies the dynamics principle by implementing a telescoping chassis that can dynamically change its extension state. The chassis can be extended to a first length for enhanced transport capability and then retracted to a second, shorter length for easier loading into the motor vehicle. This dynamic transformation allows the same chassis structure to optimize for different operational phases - transport versus loading.
Solution Approach 2:
The patent applies the dimensionality change principle by utilizing the longitudinal dimension of the chassis for transport capability enhancement, then retracting it to reduce the overall length dimension for loading. The telescoping mechanism allows the chassis to extend along the longitudinal axis when transport capability is needed, and retract along the same axis when loading ease is the priority, effectively using dimensional transformation to resolve the contradiction.
Data Source
AI summary
A transport and loading assembly for a motor vehicle, such as a passenger car in particular, includes a loading area extending to a rear opening. The transport and loading assembly has a transport cart which has a chassis with multiple adjustable rollers and at least one transport container, wherein the chassis can be adjusted between a transport position and a loading position. The transport and loading assembly also has a loading device which can be installed in the loading area and which has a loading mechanism for loading and/or unloading the transport cart into or out of the loading area. The transport cart has an electrically operated height adjustment device, by means of which the height of the transport cart can be adjusted in the transport position. The chassis has an at least partly telescoping linkage in order to adjust the height of the transport cart and three rollers are held on a respective telescoping device, wherein the telescoping devices can be adjusted independently of one another.