PURPOSE: To increase a capacity of load on a transport means at the time of transport of members in a automated storage and retrieval system.

CONSTITUTION: A shelf support member 6 provided fixingly with a pin receiver 4 is provided fixingly at a support 1, and arrangement is made that a shelf support 2 may be enable of making a turning movement with a pin 5 as a center by inserting the pin 5 into an arm 3 provided fixingly at the shelf support 2. At the time of transport, an occupying space can be made small by turning the shelf support 2 from a posture in which the shelf support 2 protrudes vertically against the support 1 as shown in the drawing, to such a posture in which the article mounting surface 2a of the shelf receiver 2 faces the side surface of the support 1 in parallel.