Abstract: An automatic warehouse has a plurality of stock units. One stock unit has one replenishing rack and one picking rack arranged so as to oppose each other with their sides, leaving a corridor between. Each rack has a plurality of shelves in both heights and length and each shelf has a size which accommodates only one article. Shifting mechanisms are provided for shifting articles to be shifted from shelves in the replenishing rack onto shelves in the picking rack. Replenishing mechanisms are provided for shifting articles to be stocked onto the replenishing rack and picking mechanisms are provided for picking articles to be picked up from the picking rack. Transfer devices are provided for transferring articles from the warehousing berth to the replenishing mechanism and from the picking mechanism to the delivery berth.

Abstract: A three-dimensional warehouse in which its working efficiency is improved with respect to the receiving and taking out of articles and its housing efficiency is improved. The warehouse has entrance/delivery stations provided at a plurality of stories, for housing blocks provided on a vertical plane. The warehouse also has horizontal conveyors disposed to circulate along the periphery of a housing area by connecting the horizontal conveyor of the same story. The warehouse may further include a vertical conveyor for connecting the horizontal conveyors in the vertical direction. The articles can be taken in and out efficiently by driving and selecting the conveyor and the entrance/delivery stations to be used.