Patent ID: 6776748
Filing Date: 2004-08-17
Classification: B26D,B26F,Y10T

Abstract:
Apparatus for breaking nicks that connect a longitudinal line of cut and a transverse line of cut in each sheet of a stack of sheets of material, the apparatus comprising:a longitudinal transport device supporting the sheets and for moving the sheets in a longitudinal direction, the longitudinal transport device comprising a longitudinal support below the stack and an upper clamp above the stack for clamping the stack of sheets against the longitudinal support; a first separating device for longitudinally separating both the longitudinal support and the upper clamp in the longitudinal direction at both opposite sides of a transverse line of cut of the stacked sheets when the longitudinal transport device has moved the sheets so that the transverse line of cut is at a location of longitudinal separation; both the longitudinal support and the upper clamp include a first respective part thereof which is movable transversely of the longitudinal direction with respect to a second respective part thereof; a transverse movement device for moving transversely apart the first and second parts of the longitudinal support and of the upper clamp at both sides of a location of transverse separation along a longitudinal line of cut in the stacked sheets when the longitudinal line of cut is placed at the transverse location of separation of the first and second parts of the longitudinal support and the upper clamp; the transverse movement device including a transverse transport device at the sheets for moving the stacked sheets in a direction transversely of the longitudinal direction to enable positioning of the stacked sheets with the longitudinal line of cut at the transverse location of separation.