Patent ID: 11772685

Abstract:
A system for storing and transporting storage containers includes an automated storage and retrieval grid including vertical members defining multiple storage columns for storing storage containers on top of each other in vertical stacks. The vertical members are interconnected at their upper ends by a container handling vehicle rail system arranged to guide at least one container handling vehicle being configured to raise storage containers from, and lower storage containers into, the storage columns, and to transport the storage containers above the storage columns. The container handling vehicle rail system includes a first set of parallel rails arranged in a first horizontal plane and extending in a first direction, and a second set of parallel rails arranged in the first horizontal plane and extending in a second direction which is orthogonal to the first direction, which first and second sets of rails form a grid pattern in the first horizontal plane including a plurality of adjacent container handling vehicle grid cells. Each container handling vehicle grid cell includes a container handling vehicle grid opening defined by a pair of neighboring rails of the first set of rails and a pair of neighboring rails of the second set of rails. A transfer column is adapted for transport of a storage container between the container handling vehicle and a delivery space is situated at a lower end of the transfer column. A delivery system includes a first delivery rail system having at least one set of parallel rails arranged in a second horizontal plane guiding at least one delivery vehicle thereon. The delivery vehicle is adapted to receive and/or deliver a storage container at a storage container delivery location arranged below the delivery space of the transfer column and to move between the storage container delivery location and a second location, the first delivery rail system covers at least an area extending from the storage container delivery location to the second location. A vehicle lift device is for transfer of the at least one delivery vehicle between a first lift stop position adjacent the second location in the second horizontal plane and a second lift stop position adjacent a third location arranged in a third horizontal plane being at a different vertical level than the second horizontal plane.