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OwnerHenri Huotari, Iisakki Huotari +3inventors
InventorsHenri Huotari, Iisakki Huotari, Jaakko Huotari, Tari Lauri, Markku Siikamaki
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The invention relates to a method and device for hot—gluing a bundle (2), particularly in a device that includes a glue reservoir (7) for storing a glue that has been made fluid, a glue-spreading roller (6) for spreading the glue onto the spine surface of the bundle (2), press devices, (3,4,5,2 1, 21′) for holding the bundle (2), and possible side-nip devices (16, 19, 20) for finishing the shape of the book. The bundle (2), which is held between two symmetrically positioned press plates (21, 21′), is pressed with the glue-spreading roller (6) to bend or fan out the edge of the bundle (2) and to open a gap between the cover sheet (11) and the outermost sheet of the bundle. The glue is spread to such an extent that a glue bead (13, 14, 15) forms at the gap and at the opposite edge of the bundle (2) and possible also at the bend in the cover sheet, so that the glue beads are spread for a certain distance in the gaps between the cover (11) and the edges of the bundle, in order to form a glue bond during the following side nipping.
A method for hot-gluing a bundle, which comprises sheets and a cover blank that initially surrounds the bundle on one side, and for manufacturing a book, particularly in a device that includes a glue reservoir for storing glue that has been made fluid, a glue-spreading roller for spreading the glue onto a spine surface of the bundle, press devices, including two essentially symmetrically positioned press plates for holding the bundle between them, and side-nip devices for finishing the shape of the book, in such a way that the bundle is pressed with the glue-spreading roller to bend or fan out an edge of the bundle, characterized in that the roller is also used to open a gap between the cover blank and an outermost sheet of the bundle and that the glue is spread to such an extent that a glue bead forms at the gap and at an opposite edge of the bundle and also at a bend in the cover blank, and that the glue bead is spread for a certain distance in the gap between the cover blank and the edge of the bundle, in order to form a glue bond during a subsequent side nipping.
Dependencies are inferred from the claim text.