Swingable Wheel Support for Low-Floor Unmanned Conveying
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Solution Overview
Problem
Existing unmanned conveying apparatuses face issues with high vehicle height and limited load space due to the design of wheel supporting sections, which can cause the driving wheels to rise and prevent stable travel on inclined or uneven surfaces.
Innovation Solution
The apparatus features a swingable first wheel supporting section that supports both driving and auxiliary wheels, allowing the apparatus to maintain a low vehicle height and ensure stable travel by keeping the driving wheels grounded even on inclined or uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the placing table and rotating device are supported to be capable of rising and falling with respect to the truck main body, then the apparatus can adapt to uneven surfaces, but the vehicle height increases and load stability deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the wheel supporting section swingable relative to the base section. The first wheel supporting section can rotate about a swinging shaft, allowing the driving wheels and first auxiliary wheels to dynamically adjust their position to follow uneven surfaces while maintaining a low vehicle height. This dynamic adaptation prevents load collapse without requiring the entire placing table to rise and fall, thus maintaining load stability.
2Adaptability or versatility
If the first wheel supporting section and second wheel supporting section are rotatably coupled in the height direction, then the apparatus can handle weight applied to either section, but the placing space for load is limited
Solution Approach 1:
The patent applies segmentation by dividing the wheel supporting structure into two independent sections: a first wheel supporting section for driving wheels and a second wheel supporting section for auxiliary wheels. Each section can independently adapt to weight applied to it, while both sections remain coupled to the base section. This segmentation allows the placing table to extend further outward, increasing the placing space for load without compromising weight distribution adaptability.
3Ease of operation
If driving wheels are disposed in the center of the truck main body, then the apparatus can turn in a small circle, but the driving wheels rise on inclined surfaces causing travel failure
Solution Approach 1:
The patent resolves this contradiction by making the first wheel supporting section swingable. The driving wheels remain centrally positioned for good turning capability, but the entire first wheel supporting section can swing to follow the contour of inclined surfaces. This ensures the driving wheels maintain contact with the ground on slopes while preserving the compact turning radius capability.
4Volume of moving object
If the vehicle height is reduced to achieve low flooring, then the placing space is enlarged, but the driving wheels cannot follow uneven surfaces
Solution Approach 1:
The patent achieves low flooring with enlarged placing space by introducing a swingable first wheel supporting section. The compact vehicle height is maintained while the first wheel supporting section can dynamically swing to follow uneven surfaces. The driving wheels and first auxiliary wheels adjust their positions independently through this swinging mechanism, ensuring terrain adaptability without increasing overall vehicle height.
Data Source
AI summary
To provide an unmanned conveying apparatus that achieves low flooring of a vehicle body and enlarges a placing space for a load and is capable of stably traveling without driving wheels rising even if an inclination or unevenness is present on a traveling surface. There is provided an unmanned conveying apparatus that is loaded with a load on a loading section supported by a base section and travels and conveys the load to a designated point. First auxiliary wheels and driving wheels are respectively supported by a first wheel supporting section. The first wheel supporting section is swingably supported, via a swinging shaft, by a swing supporting section provided in the base section.