Article Transport Vehicle Fall Restrictor for Heavy Load Support
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Solution Overview
Problem
Existing article transport vehicles face challenges in ensuring strength to support heavy articles without increasing the size and cost due to the bending moment acting on cantilevered fall restricting members and support sections.
Innovation Solution
A fall restricting device with a pair of fall restricting members supported by a cover connecting section, featuring vertical extension sections and lower connecting sections, which are driven to overlap the article in a specific direction to support it vertically, reducing the need for increased rigidity and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fall restricting members are provided in a cantilevered state on a support section to support heavy articles, then the strength to support the article is improved, but the size of the fall restricting members and support section increases
Solution Approach 1:
Instead of having the fall restricting member support the article from above (cantilevered configuration), the invention inverts the support direction by having the lower connecting section support the article from below. This inversion eliminates the bending moment problem and allows for a more compact structure without compromising strength.
Solution Approach 2:
The invention changes the spatial arrangement by extending vertical extension sections downward from the supported section and connecting them with a lower connecting section below the article. This dimensional reconfiguration transforms the support mechanism from a horizontal cantilever to a vertical suspension structure, reducing the required size of support sections.
2Strength
If fall restricting members are provided in a cantilevered state to support heavy articles, then the strength to support the article is improved, but the cost increases
Solution Approach 1:
By inverting the support configuration to use vertical extension sections extending downward with a lower connecting section, the structure eliminates bending moments. This allows for the use of smaller, less expensive materials and simpler manufacturing processes while maintaining the required strength for heavy article support.
3Strength
If the size of fall restricting members and support section is increased to support heavy articles, then the strength to support the article is improved, but the weight of the vehicle increases
Solution Approach 1:
The inverted configuration with vertical extension sections and lower connecting section eliminates bending moments, allowing for a significant reduction in the size and weight of the fall restricting members and support sections while maintaining adequate strength for heavy article support, thereby reducing overall vehicle weight.
Data Source
AI summary
An article transport vehicle of this disclosure includes a fall restricting device. A vehicle body of the article transport vehicle includes a first cover section, a second cover section, and a cover connecting section. The fall restricting device includes a pair of fall restricting members and a driving mechanism. The pair of fall restricting members each include a supported section, a pair of vertical extension sections, and a lower connecting section. The driving mechanism drives the pair of fall restricting members to move between a restricting position and a release position. At the restricting position, the pair of vertical extension sections overlap a stored article in a second direction view, and furthermore the lower connecting section overlaps the stored article in a vertical view. At the release position, the lower connecting section does not overlap the stored article in the vertical view.