FOUP Relay Shelf Layout for Space-Limited Inter-Building Transport
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Solution Overview
Problem
Conventional transport systems between buildings lack sufficient space for providing multiple loading portions due to limited space along the track direction, restricting the number of storage sections that can be accommodated.
Innovation Solution
A transport system design with overlapping transfer tracks and storage sections positioned perpendicular to the track direction, allowing for multiple storage sections to be utilized efficiently, even in spaces with limited horizontal extent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple loading portions are provided along the track direction, then the number of storage sections increases, but the space required in the track direction increases
Solution Approach 1:
The patent transitions from arranging storage sections only along the track direction (one dimension) to arranging them in a two-dimensional layout by utilizing both sides of the track. The relay unit includes storage sections on both the left and right sides, allowing objects to be stored in parallel on either side of the track while the transport vehicle travels along the same track path. This dimensional change doubles the effective storage capacity without extending the track length.
2Quantity of substance
If storage sections are provided on both sides of the track, then the number of storage sections increases, but the device complexity increases
Solution Approach 1:
The relay unit is designed as a multi-functional device that simultaneously serves as a storage facility with sections on both sides of the track and as a transfer station where the transport vehicle can load and unload objects. The control unit coordinates operations to manage both left and right side storage sections, enabling the relay unit to perform multiple functions (storage, transfer, and routing) within a single integrated structure, thereby managing complexity through functional consolidation.
Data Source
AI summary
A transport system includes a first track in a first building, a second track in a second building, overhead transport vehicles, and a relay to pass a FOUP between the overhead transport vehicles. The overhead transport vehicle traveling on a first outward path portion and the overhead transport vehicle traveling on a second return path portion can transfer the FOUP to a same storage shelf, and the overhead transport vehicle traveling on a first return path portion and the overhead transport vehicle traveling on a second outward path portion can transfer the FOUP to the same storage shelf.