Process and apparatus for the adhesive connection of the sheets of a multi-sheet folded printed product
AssigneeFerag AG
InventorWilly Leu
Life of this patent
Estimating the term…
Abstract
The multi-sheet, folded printed product arranged on the supporting member is penetrated by a penetration tool, from the direction of a supporting member. A pressure-exerting element acts on the printed product with a lateral compressive force. This results in a widening of the through-passage produced through the printed product. Upon withdrawal into the rest position of the penetration tool, adhesive present on the surface of the penetration tool is transferred onto the sheets in the through-passage. Once the lateral compressive force has been eliminated, the through-passage closes, which results in good distribution of the adhesive and reliable adhesive bonding.
Claims15
A process for the adhesive connection of the sheets of a multi-sheet printed product, said printed product being folded alone a fold such that the printed product is separated into two portions, comprising the steps of:
- arranging the printed product on a supporting member such that its inner side rest on the supporting member and its outer side is exposed which keeps the two portions of the printed product spread apart;
- penetrating the printed product from its inner side with a penetration tool to form a through-passage in the region of the fold of the printed product;
- after the penetration tool has penetrated the printed product, applying adhesive to the surface of the penetration tool;
- withdrawing the penetration tool;
- and
- upon withdrawal of the penetration tool, exerting a lateral compressive force on the printed product from the outer side in order to widen the through-passage and to transfer the adhesive onto the sheets in the through-passage.
An apparatus for the adhesive connection of the sheets of a multi-sheet, folded printed product, said folded printed product being folded along a fold such that the printed product is separated into two portions, comprising:
- a supporting member supporting the printed product such that its inner side rest on the supporting member and its outer side is exposed, and the supporting member keeps the two portions of the printed product spread apart;
- a penetration tool moveable, transversely with respect to the supporting member, from a rest position into a penetration position and back again, the penetration tool forming a through-passage through the printed product, arranged on the supporting member, in the region of its fold, in a direction away from the supporting member;
- an adhesive-application device applying adhesive onto the penetration tool when the penetration tool is located at least approximately in the penetration position;
- and
- a compressive-force mechanism disposed to exert a lateral compressive force on the printed product on its outer side in order to widen the through-passage and to transfer the adhesive onto the sheets in the through-passage.
A process for the adhesive connection of the sheets of a multi-sheet, folded printed product, said printed product being folded along a fold such that the printed product is separated into two portions, comprising the steps of:
- arranging the printed product on a supporting member such that its inner side rest on the supporting member and its outer side is exposed, and said supporting member keeps the two portions of the printed products spread apart;
- penetrating the printed product from its inner side with a sword-like penetration tool to form a through-passage in the region of the fold of the printed product;
- after the penetration tool has penetrated the printed product, applying adhesive to the surface of the penetration tool;
- withdrawing the penetration tool;
- and
- upon withdrawal of the penetration tool, widening the through-passage to thereby transfer the adhesive onto the sheets in the through-passage.
An apparatus for the adhesive connection of the sheets of a multi-sheet, folded printed product, said printed product being folded such that the printed product is separated into two portions, comprising:
- a supporting member supporting the printed product and keeping the two portions of the printed product spread apart;
- a sword-like penetration tool moveable with respect to the supporting member to penetrate the printed product and form a through-passage through the printed product;
- an adhesive-application device applying adhesive onto the penetration tool, the adhesive application device disposed such that the application of the adhesive onto the penetration tool occurs after the penetration tool has penetrated the printed product;
- and
- a widening mechanism adapted to engage the printed product to widen the through-passage as the penetration tool is being withdrawn from the printed product to thereby transfer the adhesive onto the sheets in the through-passage.
Dependencies are inferred from the claim text.