Conveyance system
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United States of America Patent
Stats
-
Jul 16, 2019
Grant Date -
Dec 6, 2018
app pub date -
Oct 13, 2016
filing date -
Dec 8, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A conveyance system includes a track, ceiling conveyance vehicles, storage apparatuses, and a conveyance controller configured or programmed to control operations of the ceiling conveyance vehicles and a local vehicle in accordance with an operation mode. The storage apparatus includes a storage plate and the local vehicle that transfer a FOUP between the storage plate and an apparatus port. The conveyance controller switches the operation mode among a first mode prohibiting transfer from the apparatus port to the storage plate by the local vehicle, a second mode prohibiting transfer to the storage plate by any of the ceiling conveyance vehicles and transfer from the storage plate to the apparatus port by the local vehicle, and a third mode that does not restrict transfer by the local vehicle.
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