An installation for storage and automated distribution of objects comprising: - an array of shelves for the storage of objects, each shelf comprising a plurality of free conveyors arranged according to at least one storage plane and parallel to an extraction axis, - an extractor comprising a platform arranged according to an extraction plane and at the end of the platform a docking edge, the platform and the docking edge being of a width which is greater than a width of the free conveyors perpendicularly to the extraction axis, which extractor can be displaced parallel to the extraction axis between at least: a retracted position spaced from the shelves, and at least a docking position in which the docking edge of the extractor is adjacent to at least one shelf and in which the extraction plane is substantially coincident with the storage plane of said shelf, the object extractor having at least one mechanical entrainment means provided on the docking edge and configured to come into engagement with at least one free conveyor in the docking position to entrain said free conveyor in a conveying movement in an object removal operation to displace at least one object from the shelf with free conveyors on to the platform of the extractor in parallel relationship with the extraction axis, - the extractor further comprising an optical barrier substantially perpendicular to the extraction axis and disposed in the vicinity of the docking edge of the extractor and configured to detect a passage of objects towards the platform, characterised in that the extractor further comprises at least one object pushing means disposed on the extractor in substantially parallel relationship with the optical barrier projecting on the docking edge at a spacing from the extraction plane, the object pushing means being configured to push objects from a selected shelf upon a displacement of the extractor from the retracted position towards an offset docking position in which the extraction plane is offset vertically with respect to the storage plane of the selected shelf and in which the object pushing means faces the selected shelf. - an array of shelves for the storage of objects, each shelf comprising a plurality of free conveyors arranged according to at least one storage plane and parallel to an extraction axis, - an extractor comprising a platform arranged according to an extraction plane and at the end of the platform a docking edge, the platform and the docking edge being of a width which is greater than a width of the free conveyors perpendicularly to the extraction axis, which extractor can be displaced parallel to the extraction axis between at least: a retracted position spaced from the shelves, and at least a docking position in which the docking edge of the extractor is adjacent to at least one shelf and in which the extraction plane is substantially coincident with the storage plane of said shelf, the object extractor having at least one mechanical entrainment means provided on the docking edge and configured to come into engagement with at least one free conveyor in the docking position to entrain said free conveyor in a conveying movement in an object removal operation to displace at least one object from the shelf with free conveyors on to the platform of the extractor in parallel relationship with the extraction axis, a retracted position spaced from the shelves, and at least a docking position in which the docking edge of the extractor is adjacent to at least one shelf and in which the extraction plane is substantially coincident with the storage plane of said shelf, the object extractor having at least one mechanical entrainment means provided on the docking edge and configured to come into engagement with at least one free conveyor in the docking position to entrain said free conveyor in a conveying movement in an object removal operation to displace at least one object from the shelf with free conveyors on to the platform of the extractor in parallel relationship with the extraction axis, - the extractor further comprising an optical barrier substantially perpendicular to the extraction axis and disposed in the vicinity of the docking edge of the extractor and configured to detect a passage of objects towards the platform,