Warehouse system

A warehouse system in which a plurality of articles is carried in and stored, and from which selected articles that are to be carried out are carried out, the selected articles being the articles that are selected from among the stored articles, the warehouse system comprising:

• an entrance through which the articles are carried in;
• an exit through which the selected articles are carried out;
• a plurality of storage racks extending in an extending direction, from an entrance side toward an exit side, and on which the articles are stored, the plurality of storage racks are arranged in layers in a height direction;
• a plurality of transfer racks disposed next to and at a same height as the plurality of storage racks, extending from the entrance side toward the exit side in parallel to the plurality of storage racks, and on which the selected articles are to be placed;
• a selection unit configured to select the selected articles from among the articles stored on the plurality of storage racks;
• a plurality of first moving units configured to move the articles in the extending direction of the plurality of storage racks on the plurality of storage racks, the plurality of first moving units being at the height of the plurality of storage racks;
• a plurality of second moving units configured to be operated independently from the plurality of first moving units and to move the selected articles toward the exit side on the plurality of transfer racks, the plurality of second moving units being at the height of the plurality of first moving units;
• and
• a plurality of third moving units configured to be operated independently from the plurality of first moving units and the plurality of second moving units and to transfer the selected articles from a storage rack of the plurality of storage racks to a transfer rack of the plurality of transfer racks, the plurality of third moving units being at the height of the plurality of first moving units and second moving units,
• wherein each one of the plurality of third moving units includes:
• a plurality of pushing devices configured to push the selected articles toward the transfer rack;
• a guide rail that extends parallel to the extending direction and configured to guide the pushing device in the extending direction of the plurality of storage racks;
• and
• a control device configured to control the pushing device to move along the guide rail,
• wherein each one of the third moving units operates independently from other ones of the third moving units, and
• wherein each one of the pushing devices of each one of the third moving units moves in the extending direction along the guide rail independently from the other ones of the pushing devices of a same third moving unit and a different third moving unit.