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Abstract

A rotation device rotates an autonomous vehicle operating on a rail system of an automated storage and retrieval system. The system is of the type having a framework structure including a plurality of vertical upright members defining storage columns for storing stacks of storage containers, with the rail system arranged on the framework structure. The rail system includes perpendicular tracks, the intersection of which define a grid having grid cells. The grid cells define openings to the storage columns. The autonomous vehicle is of the type having wheels that travel along the rail system, and which changes direction by alternatively lifting or lowering sets of wheels. One set of wheels is adapted for travel of the vehicle in a first direction, and a second set of wheels is adapted for travel of the vehicle in a second direction, perpendicular to the first direction. The rotation device includes a module adapted for mounting in a grid cell beneath a plane defined by the rail system of the framework structure, and a stationary member affixed to the module. The stationary member is arranged to receive a force, transferred from the container handling vehicle to the stationary member by a mechanical linkage, and to convert the force into a rotation of the vehicle.

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First Claim