BRIEF DESCRIPTION OF THE DRAWINGS
Further features and advantages of the present invention can be found in the dependent claims and in the following description of a preferred embodiment with reference to the drawings, showing:
FIG. 1 a storage rack according to the invention in a perspective front view;
FIG. 2 a drive wheel of a lifting mechanism according to the invention in a perspective side view;
FIG. 3 the drive wheel of FIG. 2 in a sectional perspective side view; and
FIG. 4 a rack support in a perspective sectional top view.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1, a storage rack 1 is shown with a rack unit 2 having several rack compartments 3 for receiving flat-shaped stock 4 which is placed in storage in the rack unit 2 parallel to one another in a horizontal plane and put in storage or removed from storage there.
The putting into or removing from storage takes place via a rack control unit 5 which has a lifting mechanism 6 as an essential component with two vertical bars 7, 8 and with drive wheels 9 interacting with the bars (see FIG. 2) which are connected to one another via a load traverse 20 extending in horizontal direction.
As can be seen in FIG. 4, the bars 7, 8 are fixed in position between two profiled sections 10, 11 bent in the shape of a U in the horizontal section and are thus break-resistant, on the one hand, and resistant to torsion on the other hand. The two U-shaped profiles 10, 11, together with a bar 7, 8 each, form a rack support 12a or together with a spacer 21, which advantageously has the same thickness as a bar, a rack support 12b, whereby the rack unit 2 has, as a whole, two vertical front rack supports 12a, arranged parallel to one another, and two vertical rear rack supports 12b, arranged parallel to one another.
The exact construction of the drive wheel 9 essential to the invention can be found in FIGS. 2 and 3: One can see here that a drive shaft 13, which transmits a rotational movement from one drive motor (not shown) to the drive wheel 9 is attached so as to be resistant to torsion and in this way transfers the drive movement to the drive wheel. In particular, the drive wheel consists of two side disks 14, 15 which extend in a vertical plane. A large number of pegs 16 extending in horizontal direction with a horizontal axis are arranged between the side disks, said pegs consisting of inner bolts 17 and outer bushings 18, a gap 19 being left between each bolt 17 and bushing 18 to receive lubricants.
The bushing 18 can turn about the horizontal axis of the bolt vis-à-vis the bolt 17 and can, in this way, roll off on the teeth of the bar 7 or 8, respectively.
In summary, the present invention offers the advantage of working with a fixed reference component, namely with an unyielding bar, which results therein that neither elastic elongations nor wear nor run-in elongations, etc. result in a deviation of the respective position of the lifting mechanism in comparison to the rack unit.
Patent Application
20080093313
