Patent ID: 6644649
Filing Date: 2003-11-11
Classification: B65H

Abstract:
A device for removing flat objects from a stack comprising a magazine (2) in which are stacked on edge flat objects to be serialized, a destacker device (6,8) vertically disposed directly in front of the magazine and a motorized means (4) for advancing the stack of flat objects along a longitudinal direction (D) in the magazine towards said destacker device so that the first object (O1) of the stack of flat objects is pressed against said destacker device in order to be ejected from the stack of flat objects in a direction (E) perpendicular to said direction (D) of advance of the stack of flat objects, which furthermore comprises a thickness measurement means for measuring the thickness of each ejected object, said thickness measurement serving for the feedback control of the movement of the stack of flat objects in the magazine (2) in such a way to bring forward the movement of the stack of flat objects towards the destacker device by a distance corresponding to the measured thickness of said ejected object, characterized in that said thickness measurement means comprises at least one pair of elastically deformable wheels (9,10) made of elastomer and between which is pinched each ejected object and a pair of laser telemeters (14,15) mounted between said destacking device and said pair of elastically deformable wheels, and in that each elastically deformable wheels has a fixed position rotation axle and comprises a hub (11) joined to an annular tread strip (12) by elastically deformable circular arcuate veins (13), each vein having its two ends for joining to the hub and to the annular strip of the wheel which are situated on a spoke of the wheel.