Patent ID: 7810629

Claim:
Device for dynamic storage of objects along a conveying section between an input station and an output station, the device comprising: an endless, flexible conveying means which is variably subdivided into a conveying strand and an idle strand, the conveying strand and the idle strand each having areas of variable lengths which move in opposite direction, at least one carriage which can be moved in a plane of conveyance of the objects for changing the storage capacity of the device, the carriage having a first deflection for the conveying strand and a second deflection for the idle strand, a first drive device for the conveying means disposed in the area of the input station and a second drive device for the conveying means disposed in the area of the output station, the first drive device and the second drive device being driven independently of each other with variable speed of conveyance and the endless, flexible conveying means being provided over its entire length at equal intervals with grippers for the objects, wherein the conveying means includes a link chain, equipped with rotatable guide rollers and which runs at least in some areas in at least one stationary guide rail, wherein the link chain includes a plurality of chain links and wherein at least one rotatable guide roller is arranged movably on the respective chain links, wherein the rotatable guide roller is connected by articulation to the respective chain link by means of a pivoted lever, wherein the pivoted lever can be fixed, in the position in which the movable guide roller is engaged with the stationary guide rail, to the respective chain link in such a manner that it can be detached, and wherein the pivoted lever can be reset by means of a control device between the position in which the guide roller engages the stationary guide rail and a position which is pivoted with respect to the former position.