Abstract: A storage rack includes a base frame and a shelf movable upward with respect to the base frame. A hoist is attachable to and detachable from the base frame and placeable on the base frame. The shelf includes an engaged portion engageable with a hook of the hoist.

Abstract: A storage rack includes a base frame and a shelf movable upward with respect to the base frame. A hoist is attachable to and detachable from the base frame and placeable on the base frame. The shelf includes an engaged portion engageable with a hook of the hoist.

Abstract: An overhead transport vehicle system includes an upper track, a lower track below the upper track in the vertical direction, and a transport vehicle to travel along the upper track and the lower track. The overhead transport vehicle system includes a placement portion on the upper surface of the lower track and to which an article can be transported from the transport vehicle stopped on the upper track.

Abstract: A rail-guided vehicle is capable of accurately determining an abnormality of a position of rail peripheral equipment. The rail-guided vehicle travels along a rail. The rail-guided vehicle is provided with: a vehicle body including a body part and a traveling part; a light projecting/receiving sensor and contact type sensors provided in the vehicle body that each detect a position of rail peripheral equipment; and a length measuring sensor that measures behavior of the vehicle body at the time of detection of the rail peripheral equipment by the light projecting/receiving sensor and the contact type sensors.