Abstract: A stacker crane capable of improving space efficiency of a rack, and reducing cost for equipment using the stacker crane, without complicating structures of masts and a platform, includes a truck frame that travels on a track along a rack, a mast provided on the truck frame, and a platform that is raised and lowered along the mast. The mast includes a first mast that guides the platform, and a second mast located such that the platform is sandwiched between the first mast and the second mast in a travelling direction of the truck frame. As compared with the first mast, the second mast has a small width in the travelling direction of the truck frame, and has the same width as seen from the travelling direction.

Abstract: A stacker crane includes a truck frame, a mast erected on the truck frame, and a platform raised and lowered along the mast, the platform including first and second rollers, the mast including a roller abutting member in which a first plate material is folded to define a first abutting surface onto which the first roller abuts and a second abutting surface onto which the second roller abuts, a back-side member made of a second plate material and arranged opposite to the roller abutting member, and a coupling member coupling the roller abutting member and the back-side member, the coupling member including first and second coupling surfaces which are plate-shaped and are opposite to each other, wherein the thickness of the first and second coupling surfaces is smaller than the thickness of the first plate material.