1. Field of the Invention
The present invention relates to a machine tool including a processing machine processing a workpiece and a workpiece storage unit housing workpieces, and particularly relates to the sizes of workpiece housing spaces in the workpiece storage unit.
2. Description of the Related Art
As a workpiece storage unit of this type, for example, Japanese Patent No. 3047847 discloses one in which pallet storage shelves formed at plural levels in a vertical direction are arranged annularly circumferentially, and a carry arm capable of moving in the vertical direction, turning about a vertical axis, and moving in a horizontal direction is disposed in the center portion thereof.