Container transport facility

A container transport facility, comprising:

• a transport vehicle configured to transport at least one container that is configured to be step-stacked in an up-down direction;
• a storage shelf configured to store the container;
• and
• a work area in which target work, which is at least one of taking-out work of an article from the container and inputting work of the article into the container, is performed, and
• wherein:
• the at least one container comprises a plurality of containers, with the storage shelf configured with a plurality of steps of a shelf portion that supports each container in the up-down direction, and store the plurality of containers in a separated state from each other,
• the transport vehicle comprises:
• a traveling body configured to travel,
• a support portion configured to be mounted on the traveling body and support the plurality of containers as at least one step-stacking container group which is a container group in a step-stacked state,
• a first transfer device configured to be mounted on the traveling body and transfer the containers between the storage shelf and the step-stacking container group supported by the support portion, and
• a second transfer device configured to be mounted on the traveling body and transfer the step-stacking container group,
• the work area is provided with a first delivery portion through which the step-stacking container group is delivered between the first delivery portion and the support portion,
• a step-stacking storage area is provided at a location different from the work area and the storage shelf, and
• the at least one step-stacking container group comprises a plurality of step-stacking container groups, the step-stacking storage area comprising:
• a disposition region in which the plurality of step-stacking container groups are able to be disposed,
• a second delivery portion in which the step-stacking container group is delivered between the second delivery portion and the support portion, and
• a container group transport device configured to perform a taking-out operation of moving the step-stacking container group from the disposition region to the second delivery portion and a taking-in operation of moving the step-stacking container group from the second delivery portion to the disposition region.