Abstract: This disclosure relates to a system having a first transport device including one of a guide and/or drive connected to a surface of a second transport device, having another guide and/or drive. The drive is configured to interact with the guide to effect movement of one of the first or second transport device relative to the other of the first or second transport device. The guide is configured to change between an active state, in which it is securely engaged with the drive means to effect movement of one of the first or second transport device, and a passive state in which the drive is not engaged, allowing the first and second transport devices to be separated.

Abstract: The present invention provides a transporting device for a storage system which maximises storage capacity of the storage system whilst remaining scalable and avoiding overheads. The transporting device includes a frame having a Z-direction track and a tray for supporting the container. The tray includes an X-direction movement unit arranged to move the container in an X-direction, a Y-direction movement unit arranged to move the container in a Y-direction and a Z-direction movement unit arranged to move the tray in a Z-direction by way of interaction with the Z-direction track. The transporting device can include a frame having a Z-direction track and a first movement unit arranged to move the container in an X-direction and/or a Z-direction by with the Z-direction track. A second movement unit is arranged to move the container in a Y-direction and/or a Z-direction.