Patent ID: 6223964
Filing Date: 2001-05-01
Classification: B42B

Abstract:
A device for the longitudinal stitching of multipiece printed products which are conveyed in the direction of a longitudinal edge along a conveying path which is linear in the stitching region, comprising a rotating stitcher, which has a carrier which is rotationally driven about an axis running essentially at right angles to the conveying direction of the products and is provided with at least one stitching head for setting wire stitching hooks in the products in the direction of their longitudinal edge, the one stitching head having a guide which runs essentially in the radial direction relative to the axis of rotation of the carrier and in which a stitching-hook drive-in plunger is displaceably guided, and a stitching-hook closing arrangement assigned to the rotating stitching head and intended for closing the wire stitching hooks, wherein the guide of the one stitching head is attached to the carrier so as to be pivotable about a pivot axis parallel to the axis of rotation of the carrier, and the guide, before or when the one stitching head runs into the stitching region, is pivotable about the pivot axis by means of a control arrangement into a position in which the displacing direction of the stitching-hook driving-in plunger is essentially at right angles to the conveying direction of the products to be stitched and is then held in this position during a section along which the driving-in and closing of the wire stitching hooks take place, and wherein, during the stitching-hook closing operation, a bending member of the stitching-hook closing arrangement interacts with the one stitching head during its linear movement, the bending member running with the stitching head along a linear path of movement.