Patent ID: 6997665

Claim:
A storage lift having mutually opposite rack columns which have a multiplicity of pairs of supporting profiles which are arranged one above the other and are intended for mutually opposite sides of storage-goods carriers, which can be stored and retrieved and are provided with carry-along pockets at their mutually opposite ends, and having a vertical conveyor which can be moved up and down between the rack columns and has at least one chain drive which forms a top strand and a bottom strand and has two drivers, of which in each case one serves for introducing a horizontal movement into one of the storage-goods carriers, in order to transfer the latter from the vertical conveyor onto a pair of supporting profiles or from a pair of supporting profiles onto the vertical conveyor, and which, together, retain in a central position, during the vertical movement of the vertical conveyor, the storage-goods carrier transferred onto the vertical conveyor, characterized in that the at least one chain drive ( 14 , 15 ) has two laterally and vertically offset chains ( 16 , 17 ) of equal length which form equidistant top strands ( 18 , 19 ) and bottom strands ( 20 , 21 ), in that the top strands ( 18 , 19 ), which execute a rectilinear horizontal movement, are shorter than the bottom strands ( 20 , 21 ), which pass through a dip to allow collision-free circulation of the drivers, in that the higher-level chain ( 16 ) of the offset chains is connected to the top ends, and the lower-level chain ( 17 ) is connected to the bottom ends, of two coupling members ( 22 , 23 ), which are spaced apart from one another in the direction of circulation and are retained, by the chains ( 16 , 17 ), in a constant position in relation to the latter during circulation, and in that the coupling members ( 22 , 23 ) have extension arms ( 24 , 25 ) which are angled to the same extent in mutually opposite directions and of which the ends form the drivers ( 27 ).