| 摘要 |
The present invention relates to an overhead travelling carriage system (2) in which an overhead travelling carriage runs from a first intra-bay route (6) through an inter-bay route (8) to a second intra-bay route (7) to convey an article from a load port (26a) for a processing device (16) to a load port (26b) for a processing device (20). An overhead buffer (28) is provided for each load port (26). The overhead travelling carriage (14) can freely deliver the article between the load ports (26a, 26b) or to the overhead buffer (28). The article can be conveyed directly between processing devices for different processes via the inter-bay routes (6, 7). Only a short time is required for conveyance. It is unnecessary to provide stockers between the intra-bay routes (6, 7) and the inter-bay route (8) (Fig. 1.). |
