Stacker crane for storehouses

Claim 1

A stacker crane for use in storehouses where piece loads (a) are kept on racks, (5) having shelves (6) thereon, comprising: a frame (1) for moving horizontally across the racks; said frame carrying columns (8) secured on said frame at a certain distance from the side ends of said racks; said columns being provided with a handler (9) mounted thereon with provision for moving along them, and including a crosshead (12) located between said columns along the racks; said handler carrying a plurality of telescopic load-supporting platforms (13) arranged on said crosshead throughout its length at a certain distance from one another and interacting with the shelves in the course of load placing and removal; guides (16) positioned parallel to said crosshead and practically of the same length as said crosshead; and a device (15) for rearranging the piece loads on said handler, said device being provided with load-carrying elements (18) for receiving the piece loads from said load-supporting platforms, and installed movably with relation to said guides; wherein the latter are rigidly mounted to said crosshead, and said rearranging device includes a carriage (17) installed in said guides; said load-carrying elements being in the form of bars (18) arranged at the sides of said carriage parallel to said guides, below said load-supporting platforms, and being kinematically linked with said carriage by means of articulated link mechanisms (19) which include a drive (20) for moving said bars vertically above said load-supporting platforms, while rearranging the piece loads on said handler and below said platforms while stacking them on the racks.