An automatic storage and retrieval system includes: a delivery vehicle; a storage container carried by the delivery vehicle; and an unloading station for unloading an item from the storage container while it is being carried by the delivery vehicle. The unloading station includes: an unloading device; and a destination conveyor configured to convey the item to a target destination, wherein the unloading device is configured to move the item through a side opening of the storage container to the destination conveyor.

An automated storage and retrieval system includes a framework structure having a plurality of internal and peripheral upright members arranged to define a storage grid including multiple storage columns for storing storage containers on top of each other in vertical stacks. The upright members are interconnected at their upper ends by a rail system arranged to guide at least one container handling vehicle thereon. The container handling vehicle is configured to raise storage containers from, and lower storage containers into the storage columns and to transport the storage containers horizontally above the storage columns. The peripheral upright members of the framework structure define a horizontal periphery of the framework structure. A vehicle elevator includes a vertically extending support, a platform, and a lift mechanism. The platform includes a horizontally extending structure arranged to carry the container handling vehicle and a connection device moveably attaching the platform to the vertically extending support. The lift mechanism is arranged to move the platform between a first lift stop position, which establishes access between the platform and the rail system, and a second lift stop position arranged within an accessing area such that a human operator/service personnel and/or robot can perform in-situ maintenance on the container handling vehicle while the container handling vehicle is arranged on the platform. The first and second lift stop positions are arranged vertically offset.

An automated storage and retrieval system includes a grid-based rail structure and a plurality of remotely operated vehicles arranged to operate on the grid-based rail structure. The automated storage and retrieval system includes a locking device arranged in a zone of the grid-based rail structure where a human and/or a robotic operator is permitted to interact with the remotely operated vehicle or contents of a storage container that the remotely operated vehicle is carrying. The locking device is arranged to lock the remotely operated vehicle against accidental displacement prior to interaction with the human and/or robotic operator, and wherein the locking device being arranged to unlock the remotely operated vehicle once interaction with the human and/or robotic operator is no longer required.

A transport vehicle (2) that travels along a container shelf (1) is provided with a plurality of levels of shelf portions (11) arranged in a vertical direction (Z) and configured to support containers (W), thereby transporting the containers (W). The transport vehicle (2) is provided with a support region where a container (W) is supported, a first transfer apparatus (23) that inserts/takes the container (W) into/out of the container shelf (1), and a second transfer apparatus (24) that loads/unloads the container (W) on/from the support region. The second transfer apparatus (24) is configured such that a container (W) can be moved to the support region so as to allow a plurality of the containers (W) to be supported in a stacked state in the support region.

A transfer device includes a holder that holds an article, and a self-propelled cart that supports the holder and travels. The self-propelled cart includes a wheel and a wheel drive source that drives the wheel, and the self-propelled cart travels along a traveling path provided on an elevation unit and a delivery device. The delivery device includes a positioning portion that positions the elevation unit while the elevation unit is at a transfer height, and a delivery-side guide that guides travel of the self-propelled cart along the traveling path. The elevation unit includes an elevation-side guide that guides travel of the self-propelled cart along the traveling path, and the elevation-side guide is arranged so as to be continuous with the delivery-side guide while the elevation unit is positioned by the positioning portion.

A method for turning a pinion-driven lift-robot in an intersection of rails. Moving the pinion-driven lift-robot in a first motion mode to position the pinion-driven lift-robot in a first position at the intersection. The pinion-driven lift-robot is turned over a corner of the intersection that is accessible from the first position and that includes continuous rails connecting a vertical track and a horizontal track, whereby positioning the pinion-driven lift-robot in a second position at the intersection. The pinion-driven lift-robot is moved in a second motion mode towards a designated direction.

The present invention provides a storage system comprising a storage grid comprising vertical column profiles defining a plurality of grid columns, the grid columns comprise storage columns, in which storage containers can be stored one on top of another in vertical stacks, the storage grid comprising at least one rail grid at the upper ends of the column profiles, a first container handling vehicle and a second container handling vehicle, the first and the second container handling vehicles each comprising at least one wheel base unit (2) and a first container handling module (13) or a second container handling module (12 or 14), respectively, connected to the wheel base unit 82), each wheel base unit (2) having a wheel arrangement for movement of the wheel base unit in two perpendicular directions upon a rail grid of the storage system, and a horizontal periphery fitting within the horizontal area defined by a grid cell of the rail grid such that wheel base units may pass each other on any adjacent grid cells of the rail grid, each of the wheel base units comprises an upper surface configured as a connecting interface for connection to any of the first and second container handling modules, and the first container handling module is a different type of container handling module to the second container handling module.

A transport vehicle (2) that travels along a container shelf (1) provided with a plurality of levels of shelf portions (11) arranged in a vertical direction (Z) and configured to support containers (W), thereby transporting the containers (W). The transport vehicle (2) is provided with a support region where a container (W) is supported, a first transfer apparatus (23) that inserts/takes the container (W) into/out of the container shelf (1), and a second transfer apparatus (24) that loads/unloads the container (W) on/from the support region. The second transfer apparatus (24) is configured such that a container (W) can be moved to the support region so as to allow a plurality of the containers (W) to be supported in a stacked state in the support region.

A direction switching module for lift robots using a pair of pinions coupled to a rack for propelling vertically and horizontally according to the track's orientation, is disclosed. In a linear motion mode both pinions rotate in the same velocity. In a direction switching mode, when changing from vertical to horizontal motion mode and vise versa, the module is capable of propelling one pinion on a vertical track and its counterpart on a horizontal track, simultaneously, each pinion in a different velocity. A bogie propelled by two pairs of said module is also disclosed, and a controller configured to drive both pinions in same velocity during linear motion and each pinion in a separate appropriate velocity during the direction switching mode. A method for turning a pinion-driven lift-robot in an intersection of rails and a controller for controlling the linear motion modes and the direction switching modes of the lift robot are also disclosed.

A vehicle tilting device for tilting a delivery vehicle for increasing access to items from a storage container transported on the delivery vehicle. The vehicle tilting device comprises a base structure and a tiltable platform connected to the base structure, wherein the tiltable platform comprises guiding features adapted to guide the delivery vehicle onto the tiltable platform. The tiltable platform is arranged to be connected to a delivery grid cell of a delivery rail system such that that there is a path to and/or from the tiltable platform for the delivery vehicle via the delivery grid cell. The invention is also related to an access station, a delivery system and a method of accessing a storage container.