EP0307891A2 - Perforating cutter - Google Patents

Perforating cutter Download PDF

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Publication number
EP0307891A2
EP0307891A2 EP19880115034 EP88115034A EP0307891A2 EP 0307891 A2 EP0307891 A2 EP 0307891A2 EP 19880115034 EP19880115034 EP 19880115034 EP 88115034 A EP88115034 A EP 88115034A EP 0307891 A2 EP0307891 A2 EP 0307891A2
Authority
EP
European Patent Office
Prior art keywords
perforating
teeth
cutting edges
signature
knife
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19880115034
Other languages
German (de)
French (fr)
Other versions
EP0307891B1 (en
EP0307891A3 (en
Inventor
Horst Bernhard Michalik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0307891A2 publication Critical patent/EP0307891A2/en
Publication of EP0307891A3 publication Critical patent/EP0307891A3/en
Application granted granted Critical
Publication of EP0307891B1 publication Critical patent/EP0307891B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/22—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material to form non-rectilinear cuts, e.g. for tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/14—Punching tools; Punching dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/15—Sheet, web, or layer weakened to permit separation through thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9314—Pointed perforators

Definitions

  • the invention relates to a signature and a perforating knife for perforating signatures before folding according to the preambles of claims 1 to 6.
  • US Pat. No. 2,775,448 has disclosed two methods and devices for carrying them out, by means of which a perforation is first created in a signature and then folded along this perforation.
  • first method longitudinal slits are created along and on a fold line that are spaced apart from one another by the same length as the length of the slits.
  • second method slits are created which run transversely to the fold line and are evenly spaced from one another.
  • the longitudinal slots precisely define a fold break and prevent the formation of creases in the event of a possible subsequent fold, especially in the vicinity of the subsequent fold.
  • this only applies to thin-layer products.
  • multilayer folded products e.g. B. for phone book or magazine sections
  • a pinch formation especially towards the edge areas can not be avoided, because the between Longitudinal slots remaining uncut sections are wide.
  • displacements of the two sides separated by the fold break, relative to one another, which are necessary as a result of a subsequent second fold running perpendicular to the first fold cannot be compensated for.
  • the invention has for its object to provide signatures that are largely free of wrinkles along an intended folding line after folding, and to provide a perforating knife for perforating signatures along a predetermined folding line, so that the perforated signature with this perforating knife after folding along the Fold line are largely free of creases.
  • the perforating teeth of the perforating knife can advantageously be regrinded, so that the total service life of the perforating knife is very long.
  • it is adjustable in height so that the perforating teeth of the perforating knife, which overhang the periphery of the cutting cylinder, can be set precisely to a predetermined dimension.
  • a two-part design of the perforating knife enables the two halves of the perforating knife to be replaced separately.
  • the perforating knife halves are identical and therefore inexpensive to manufacture.
  • a folder of a rotary printing machine has u. a. a perforating cylinder 1.
  • the perforating cylinder 1 carries a knife bar 3 in a cylinder-wide pit 2.
  • the knife bar 3 has a receptacle 4 for a perforating knife 6.
  • Seen in the direction of rotation of the perforating cylinder 1, a spring-loaded hold-down device 7, 8 is provided in front of and behind the perforating knife 6.
  • the hold-down devices 7, 8 press a signature 9 against a counterperforation cylinder 11 and thus prevent the signature 9 from slipping during the perforation process.
  • the perforating knife 6 cooperates with an elastic counter bar 12 which is attached to the counter perforating cylinder 11.
  • the perforating knife 6 is made in two parts and consists of two thin-walled steel sheets 17, 18 (z. B. 1 mm) which are slightly wider than the signature 9.
  • the sheets 17, 18 are identical to one another and each with its rear side 19; 21 attached to each other in the cutter bar 3 that they complement each other in their mode of action to a single blade.
  • Each sheet 17; 18 has a plurality of perforating teeth 24 on an upper edge 23; 26 on.
  • the perforating teeth 24; 26 all have, except for one perforating tooth 24.1 arranged in the middle; 26.1, the same tooth width and are arranged at a distance from one another, so that in each case between two adjacent perforating teeth 24 and 24; 26 and 26 a tooth gap 27; 28 arises.
  • the perforating teeth 24.1, 26.1 arranged in the middle of each steel sheet 17, 18 are made somewhat wider than the rest Perforating teeth 24, 26. This leaves no gap between the perforating teeth 24.1, 26.1 when the two perforating knife halves 6 are juxtaposed.
  • the base cutting edges 29, 30 of the perforating teeth 24, 24.1; 26, 26.1 lie on a common straight line 37.
  • the tooth gaps 27; 28 are somewhat wider than the perforating teeth 24; 26.
  • the arrangement of the perforating teeth 24; 26 and tooth gaps 27; 28 is selected such that a perforating tooth 24 covers a tooth gap 28 and a perforating tooth 26 covers a tooth gap 27 almost up to a small gap a (approx. 0.5-3 mm).
  • the gap a is the distance between the leg cutting edges 31, 32 of two immediately adjacent perforating teeth 24, 26.
  • Each perforating tooth 24; 26 is chisel-shaped on one side to the base cutting edge 29; 30 ground and each has two leg cutting edges 31; 32 on its inclined side flanks 33; 34 on.
  • ⁇ ⁇
  • the cutting edges 29, 31; 30, 32 of the perforating teeth 24, 24.1; 26, 26.1 are designed in a "U" shape, the leg cutting edges 31, 32 of immediately adjacent perforating teeth 24, 26; 24.1, 26.1 are mutually arranged.
  • the basic cutting edges 29, 30; 47; 59 all perforating teeth 24, 26, 24.1, 26.1; 45; 57 on or lie in the vicinity of the common straight line 37 and the two leg cutting edges 31, 32; 61 two immediately adjacent perforating teeth 24, 26; 24.1, 26.1; 57 are each folded against each other by 180 ° around the straight line 37 provided.
  • the perforating knife 6 On a lower edge 43, the perforating knife 6 has a plurality of recesses 44, by means of which it can be displaced vertically but not horizontally in the receptacle 4.
  • the perforating knife 6 is made in one piece.
  • the perforating knife 6 creates a perforation in a multilayer signature 9 such that the signature 9 has a plurality of mutually extending "U" -shaped perforations 35, 40 along or in the vicinity (for example ⁇ 0.2 mm) of the fold line 36. 41 has.
  • the base cuts 35, 35.1, 35.2; 51; 67 of all perforations 35, 40, 41; 51, 52; 67, 68 lie on or in the vicinity of the fold line 36 provided and the two leg cuts 40, 41; 68 of two immediately adjacent perforations 35, 40, 41; 67, 68 are each folded over by 180 ° around the intended fold line 36 in the signature plane 9.
  • leg cutting edges 31; 32 of the perforating teeth 24; 26 produced leg cuts 40; 41
  • there is a small web 39 only between the two base cuts 35.1, 35.2 made wider by the cutting teeth 24.1, 26.1 there is no web 39 so that the fold line 36 has a double length slot there, which is preferably in the middle of the signature in the area of a longitudinal fold 42 is produced.
  • a perforating knife 46 has a multiplicity of perforating teeth 45 arranged next to one another at a distance a, in which the cutting edges 47, 48 of the perforating teeth 45 are “H” -shaped and the basic cutting edges 47 of the perforating teeth 45 the common straight line 37 are arranged.
  • the perforating teeth 45 are each separated from one another by a tooth gap 54. Only two perforating teeth 45 each formed in the middle, in the area of an intended longitudinal fold 42, are arranged close together so that there is no distance a between the perforating teeth 45.
  • the angles ⁇ , ⁇ can also be of different sizes.
  • the perforating knife 46 creates a perforation 51, 52 in a multi-layer signature 9 such that the signature 9 has a plurality of extending "H" -shaped perforations 51, 52 along or near the fold line 36. Between the thigh cutting edges 48 generated leg cuts 52 each have a small web 53, only between two base cuts 51 made in the signature center 42 no web 53 remains.
  • a perforating knife 56 has a multiplicity of perforating teeth 57 which are arranged next to one another at a distance a, in which the cutting edges 59, 61 of the perforating teeth 57 have a "lying crank” shape, which means that the one "Crank rod” corresponding basic cutting edges 59 lie on a common straight line 37 and that the "crank pins" corresponding leg cutting edges 61 of the perforating teeth 57 and the leg cutting edges 61 of two immediately adjacent perforating teeth 57 are mutually arranged.
  • the perforating teeth 57 are each separated from one another by a tooth gap 58. Only two perforating teeth 57, each formed in the middle in the area of the provided longitudinal fold 42, are arranged close together.
  • the angles ⁇ ; ⁇ can also be of different sizes.
  • two immediately adjacent leg cutting edges 61, or the extensions thereof, forming the tooth gap 58 are parallel.
  • the perforating knife 56 produces in a multi-layer Signature 9 has a perforation 67, 68 such that the signature 9 has a plurality of extending "lying crank” -shaped perforations 67, 68 along or in the vicinity of the fold line 36, which is to be understood to mean that each of the "crank rods" corresponding base cuts 67 lie on the common fold line 36, the leg cuts 68 corresponding to the “crank pins” being arranged alternately to one another.
  • the "crank pins" 68 point counterclockwise as viewed from the "crank rod” 67 up to a signature center 42, and clockwise from a signature center 42.
  • leg cuts 68 produced by the leg cutting edges 61 each remains in a small web 63, only the perforation 67, 68 arranged in the middle of the signature, in the area of the longitudinal fold 42, has a perforation 67, 68 which consists of two opposing "cranks" and which does not Forms web 63 between the equally weighted leg cuts 68.

Abstract

Eine aus mehreren Papierbahnlagen bestehende Signatur (9) mit einem Falzbruch ist entlang der Falzlinie (36) mit Perforationen versehen, die einen Falzbruch exakt vorgeben und beim Aufeinanderstapeln von mehreren, entlang dieser Falzlinie (36) gefalzten Signaturen (9) eine Wulst- und/oder Stauchfaltenbildung vermeiden. Außerdem ist ein Perforiermesser (6, 46, 56) zur Erzeugung dieser Perforationen vorgesehen.A signature (9) consisting of several layers of paper web with a fold break is provided with perforations along the fold line (36), which precisely define a fold break and, when stacking several signatures (9) folded along this fold line (36), a bead and / or avoid forming wrinkles. In addition, a perforating knife (6, 46, 56) is provided to produce these perforations.

Description

Die Erfindung betrifft eine Signatur und ein Perforiermesser zum Perforieren von Signaturen vor dem Falzen gemäß der Oberbegriffe der Patentansprüche 1 bis 6.The invention relates to a signature and a perforating knife for perforating signatures before folding according to the preambles of claims 1 to 6.

Durch das US-Patent 27 75 448 sind zwei Verfahren und Einricntungen zu ihrer Durchführung bekannt geworden, mittels derer in einer Signatur zunächst eine Perforation erzeugt wird und anschließend entlang dieser Perforation gefalzt wird.
Bei dem ersten Verfahren werden Längsschlitze entlang und auf einer Falzbruchlinie erzeugt, die einen Abstand voneinander haben, der genau so groß ist wie die Länge der Schlitze.
Bei dem zweiten Verfahren werden Schlitze erzeugt, die quer zur Falzbruchlinie verlaufen und einen gleichmäßigen Abstand voneinander haben.US Pat. No. 2,775,448 has disclosed two methods and devices for carrying them out, by means of which a perforation is first created in a signature and then folded along this perforation.
In the first method, longitudinal slits are created along and on a fold line that are spaced apart from one another by the same length as the length of the slits.
In the second method, slits are created which run transversely to the fold line and are evenly spaced from one another.

Die Längsschlitze geben einen Falzbruch exakt vor und vermeiden bei einem möglichen nachfolgenden Falz eine Quetschfaltenbildung speziell im näheren Bereich des nachfolgenden Falzes. Dies gilt jedoch nur für dünnlagige Produkte. Bei mehrlagigen Falzprodukten z. B. für Telefonbuch- oder Magazinsektionen kann eine Quetschfaltenbildung, insbesondere hin zu den Randbereichen nicht vermieden werden, da die zwischen den Längsschlitzen verbleibenden ungeschnittenen Partien breit sind. Hierdurch können Verschiebungen der beiden, durch den Falzbruch getrennten Seiten, relativ zueinander, die infolge eines nachfolgenden, senkrecht zum ersten Falz verlaufenden, zweiten Falzes nötig sind, nicht ausgeglichen werden.The longitudinal slots precisely define a fold break and prevent the formation of creases in the event of a possible subsequent fold, especially in the vicinity of the subsequent fold. However, this only applies to thin-layer products. In the case of multilayer folded products, e.g. B. for phone book or magazine sections a pinch formation, especially towards the edge areas can not be avoided, because the between Longitudinal slots remaining uncut sections are wide. As a result, displacements of the two sides separated by the fold break, relative to one another, which are necessary as a result of a subsequent second fold running perpendicular to the first fold, cannot be compensated for.

Das Einbringen von Schlitzen quer zur Falzbruchlinie vermeidet zwar die Bildung von Quetschfalten, jedoch ist es von Nachteil, daß keine feste Falzbruchlinie mehr vorgegeben ist. Außerdem kommt es im Falzbereich zu unerwünschter Wulstbildung, die ein Abstapeln der Produkte erschwierigt.The introduction of slits transversely to the fold fold line avoids the formation of pinch folds, but it is disadvantageous that no fixed fold fold line is specified any more. In addition, undesired bulging occurs in the fold area, which makes it difficult to stack the products.

Der Erfindung liegt die Aufgabe zugrunde, Signaturen zu schaffen, die entlang einer vorgesehenen Falzlinie nach dem Falzen weitestgehend stauchfaltenfrei sind, und ein Perforiermesser zum Perforieren von Signaturen entlang einer vorgesenenen Falzlinie zu schaffen, so daß die mit diesem Perforiermesser perforierten Signaturen nach dem Falzen entlang der Falzlinie weitestgehend stauchfaltenfrei sind.The invention has for its object to provide signatures that are largely free of wrinkles along an intended folding line after folding, and to provide a perforating knife for perforating signatures along a predetermined folding line, so that the perforated signature with this perforating knife after folding along the Fold line are largely free of creases.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Teile der Patentansprüche 1 bis 6 gelöst.The object is achieved by the characterizing parts of claims 1 to 6.

Die mit der Erfindung erzielbaren Vorteile sind insbesondere die, daß auch Signaturen mit großer Seitenzahl, z. B. 64 gut aufeinander gestapelt werden können, da Wulst- und / oder Stauchfaltenbildungen nahezu vollständig verhindert werden.The advantages that can be achieved with the invention are, in particular, that signatures with a large number of pages, eg. B. 64 can be stacked well on each other, since bulge and / or squeeze folds are almost completely prevented.

In vorteilhafter Weise sind die Perforierzähne des Perforiermessers nachschleifbar, so daß die Gesamtstandzeit des Perforiermessers sehr hoch ist. Außerdem ist es in seiner Höhe verstellbar, so daß die, die Peripherie des Schneidzylinders überrangenden Perforierzähne des Perforiermessers genau auf ein vorgegebenes Maß eingestellt werden können. Eine zweiteilige Ausführung des Perforiermessers ermöglicht eine getrennte Auswechselung der beiden Perforiermesserhälften. Die Perforiermesserhälften sind identisch und dadurch kostengünstig herzustellen.The perforating teeth of the perforating knife can advantageously be regrinded, so that the total service life of the perforating knife is very long. In addition, it is adjustable in height so that the perforating teeth of the perforating knife, which overhang the periphery of the cutting cylinder, can be set precisely to a predetermined dimension. A two-part design of the perforating knife enables the two halves of the perforating knife to be replaced separately. The perforating knife halves are identical and therefore inexpensive to manufacture.

Drei Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben. Es zeigen

  • Fig. 1 Eine perspektivische Ansicht auf die Perforierzähne des erfindungsgemäßen Perforiermessers,
  • Fig. 2 eine Seitenansicht des Perforiermessers,
  • Fig. 3 eine durch die Perforierzähne verursachte Perforation entlang einer Falzbruchlinie,
  • Fig. 4 einen Perforierzylinder mit Messeroalken und Perforiermesser im Schnitt,
  • Fig. 5 eine zweite Ausführungsform des erfindungsgemäßen Perforiermessers,
  • Fig. 6 eine durch die zweite Ausführungsform des Perforiermesser erzeugte Perforation,
  • Fig. 7 eine dritte Ausführungsform des erfindungsgemäßen Perforiermessers,
  • Fig. 8 eine durch die dritte Ausführungsform des Perforiermessers erzeugte Perforation.
Three embodiments of the invention are shown in the drawings and are described in more detail below. Show it
  • 1 is a perspective view of the perforating teeth of the perforating knife according to the invention,
  • 2 is a side view of the perforating knife,
  • 3 shows a perforation along the fold line caused by the perforating teeth,
  • 4 shows a perforating cylinder with knife oalk and perforating knife in section,
  • 5 shows a second embodiment of the perforating knife according to the invention,
  • 6 shows a perforation produced by the second embodiment of the perforating knife,
  • 7 shows a third embodiment of the perforating knife according to the invention,
  • 8 shows a perforation produced by the third embodiment of the perforating knife.

Ein Falzwerk einer Rotationsdruckmaschine weist u. a. einen Perforierzylinder 1 auf. Der Perforierzylinder 1 trägt in einer zylinderbreiten Grube 2 einen Messerbalken 3. Der Messerbalken 3 weist eine Aufnahme 4 für ein Perforiermesser 6 auf. In Rotationsrichtung des Perforierzylinders 1 gesehen, ist vor und hinter dem Perforiermesser 6 jeweils ein federbeaufschlagter Niederhalter 7, 8 vorgesehen. Die Niederhalter 7, 8 drücken eine Signatur 9 gegen einen Gegenperforierzylinder 11 und verhindern somit ein Verrutschen der Signatur 9 während des Perforiervorganges. Das Perforiermesser 6 wirkt dabei mit einer elastischen Gegenleiste 12 zusammen, die am Gegenperforierzylinder 11 befestigt ist.A folder of a rotary printing machine has u. a. a perforating cylinder 1. The perforating cylinder 1 carries a knife bar 3 in a cylinder-wide pit 2. The knife bar 3 has a receptacle 4 for a perforating knife 6. Seen in the direction of rotation of the perforating cylinder 1, a spring-loaded hold-down device 7, 8 is provided in front of and behind the perforating knife 6. The hold-down devices 7, 8 press a signature 9 against a counterperforation cylinder 11 and thus prevent the signature 9 from slipping during the perforation process. The perforating knife 6 cooperates with an elastic counter bar 12 which is attached to the counter perforating cylinder 11.

Das Perforiermesser 6 ist zweiteilig ausgeführt und besteht aus zwei dünnwandigen Stahlblechen 17, 18 (z. B. 1 mm) die etwas breiter als die Signatur 9 sind. Die Bleche 17, 18 sind in vorteilhafter Gestaltung untereinander gleich und jeweils mit ihrer Rückseite 19; 21 derart aneinander in dem Messerbalken 3 befestigt, daß sie sich in ihrer Wirkungsweise zu einer einzelnen Klinge ergänzen. Jedes Blech 17; 18 weist an einer Oberkante 23 eine Mehrzahl von Perforierzähnen 24; 26 auf. Die Perforierzähne 24; 26 haben alle, bis auf jeweils einen in der Mitte angeordneten Perforierzahn 24.1; 26.1, die gleiche Zahnbreite und sind in einem Abstand voneinander angeordnet, so daß jeweils zwischen zwei benachbarten Perforierzähnen 24 und 24; 26 und 26 eine Zahnlücke 27; 28 entsteht. Die in der Mitte jedes Stahlbleches 17, 18 angeordneten Perforierzähne 24.1, 26.1 sind etwas breiter ausgeführt, als die restlichen Perforierzähne 24, 26. Hierdurch verbleibt beim rückseitigen Aneinanderstellen der beiden Perforiermesserhälften 6 keine Lücke zwischen den Perforierzähnen 24.1, 26.1. Die Basisschneidkanten 29, 30 der Perforierzähne 24, 24.1; 26, 26.1 liegen auf einer gemeinsamen Geraden 37. Die Zahnlücken 27; 28 sind etwas breiter als die Perforierzähne 24; 26. Die Anordnung der Perforierzähne 24; 26 und Zahnlücken 27; 28 ist so gewählt, daß jeweils ein Perforierzahn 24 eine Zahnlücke 28 und ein Perforierzahn 26 eine Zahnlücke 27 nahezu bis auf einen kleinen Spalt a (ca. 0,5 - 3 mm) abdeckt. Der Spalt a ist der Abstand zwischen den Schenkelschneidkanten 31, 32 zweier unmittelbar benachbarter Perforierzähnen 24, 26.The perforating knife 6 is made in two parts and consists of two thin-walled steel sheets 17, 18 (z. B. 1 mm) which are slightly wider than the signature 9. In an advantageous design, the sheets 17, 18 are identical to one another and each with its rear side 19; 21 attached to each other in the cutter bar 3 that they complement each other in their mode of action to a single blade. Each sheet 17; 18 has a plurality of perforating teeth 24 on an upper edge 23; 26 on. The perforating teeth 24; 26 all have, except for one perforating tooth 24.1 arranged in the middle; 26.1, the same tooth width and are arranged at a distance from one another, so that in each case between two adjacent perforating teeth 24 and 24; 26 and 26 a tooth gap 27; 28 arises. The perforating teeth 24.1, 26.1 arranged in the middle of each steel sheet 17, 18 are made somewhat wider than the rest Perforating teeth 24, 26. This leaves no gap between the perforating teeth 24.1, 26.1 when the two perforating knife halves 6 are juxtaposed. The base cutting edges 29, 30 of the perforating teeth 24, 24.1; 26, 26.1 lie on a common straight line 37. The tooth gaps 27; 28 are somewhat wider than the perforating teeth 24; 26. The arrangement of the perforating teeth 24; 26 and tooth gaps 27; 28 is selected such that a perforating tooth 24 covers a tooth gap 28 and a perforating tooth 26 covers a tooth gap 27 almost up to a small gap a (approx. 0.5-3 mm). The gap a is the distance between the leg cutting edges 31, 32 of two immediately adjacent perforating teeth 24, 26.

Jeder Perforierzahn 24; 26 ist einseitig meißelförmig zu der Basisschneidkante 29; 30 angeschliffen und weist jeweils zwei Schenkelschneidkanten 31; 32 an seinen geneigten Seitenflanken 33; 34 auf. Die Schneidkanten 31; 32 stehen in Verbindung mit den Enden der Schneidkanten 29; 30 und sind jeweils in einem Winkel α, β (z. B. α = β = 90°) zu den Basisschneidkanten 29; 30 angeordnet. Selbstverständlich ist es auch möglich, daß die Winkel α und β unterschiedlich groß sind.Each perforating tooth 24; 26 is chisel-shaped on one side to the base cutting edge 29; 30 ground and each has two leg cutting edges 31; 32 on its inclined side flanks 33; 34 on. The cutting edges 31; 32 are connected to the ends of the cutting edges 29; 30 and are each at an angle α, β (eg α = β = 90 °) to the base cutting edges 29; 30 arranged. Of course, it is also possible that the angles α and β are of different sizes.

Die Schneidkanten 29, 31; 30, 32 der Perforierzähnen 24, 24.1; 26, 26.1 sind "U"-förmig ausgebildet, wobei die Schenkelschneidkanten 31, 32 unmittelbar benachbarter Perforierzähne 24, 26; 24.1, 26.1 wechselseitig zueinander angeordnet sind. Hierbei ist unter wechselseitig zu verstehen, daß die Basisschneidkanten 29, 30; 47; 59 sämtlicher Perforierzähne 24, 26, 24.1, 26.1; 45; 57 auf oder in der Nähe der gemeinsamen Geraden 37 liegen und die zwei Schenkelschneidkanten 31, 32; 61 zweier unmittelbar benachbarter Perforierzähne 24, 26; 24.1, 26.1; 57 jeweils gegeneinander um 180° um die vorgesehene Gerade 37 umgeklappt sind.The cutting edges 29, 31; 30, 32 of the perforating teeth 24, 24.1; 26, 26.1 are designed in a "U" shape, the leg cutting edges 31, 32 of immediately adjacent perforating teeth 24, 26; 24.1, 26.1 are mutually arranged. Here, one understands the other that the basic cutting edges 29, 30; 47; 59 all perforating teeth 24, 26, 24.1, 26.1; 45; 57 on or lie in the vicinity of the common straight line 37 and the two leg cutting edges 31, 32; 61 two immediately adjacent perforating teeth 24, 26; 24.1, 26.1; 57 are each folded against each other by 180 ° around the straight line 37 provided.

An einer Unterkante 43 weist das Perforiermesser 6 eine Mehrzahl von Ausnehmungen 44 auf, mittels derer es in der Aufnahme 4 vertikal, jedoch nicht horizontal verschiebbar ist. Eine Mehrzahl rechteckförmiger Ausnehmungen 50, ebenfalls an der Unterkante 43 des Perforiermessers 6, dienen zur Aufnahme von Stellkeilen (nicht dargestellt).On a lower edge 43, the perforating knife 6 has a plurality of recesses 44, by means of which it can be displaced vertically but not horizontally in the receptacle 4. A plurality of rectangular recesses 50, also on the lower edge 43 of the perforating knife 6, serve to accommodate adjusting wedges (not shown).

Natürlich ist es auch möglich, daß das Perforiermesser 6 einteilig ausgeführt ist.Of course, it is also possible that the perforating knife 6 is made in one piece.

Das Perforiermesser 6 erzeugt in einer mehrlagigen Signatur 9 eine Perforation derart, daß die Signatur 9 entlang, oder in der Nähe (z.B. ± 0,2 mm) der Falzlinie 36 eine Vielzahl von wechselseitig sich erstreckenden "U"-förmigen Perforationen 35, 40, 41 aufweist. Unter wechselseitig ist zu verstehen, daß die Basisschnitte 35, 35.1, 35.2; 51; 67 sämtlicher Perforationen 35, 40, 41; 51, 52; 67, 68 auf oder in der Nähe der vorgesehenen Falzlinie 36 liegen und die beiden Schenkelschnitte 40, 41; 68 zweier unmittelbar benachbarter Perforationen 35, 40, 41; 67, 68 jeweils um 180° um die vorgesehene Falzlinie 36 in der Signatur-­Ebene 9 umgeklappt sind.The perforating knife 6 creates a perforation in a multilayer signature 9 such that the signature 9 has a plurality of mutually extending "U" -shaped perforations 35, 40 along or in the vicinity (for example ± 0.2 mm) of the fold line 36. 41 has. By mutual is to be understood that the base cuts 35, 35.1, 35.2; 51; 67 of all perforations 35, 40, 41; 51, 52; 67, 68 lie on or in the vicinity of the fold line 36 provided and the two leg cuts 40, 41; 68 of two immediately adjacent perforations 35, 40, 41; 67, 68 are each folded over by 180 ° around the intended fold line 36 in the signature plane 9.

Zwischen den, durch die Schenkelschneidkanten 31; 32 der Perforierzähne 24; 26 erzeugten Schenkelschnitten 40; 41 verbleibt jeweils ein kleiner Steg 39, lediglich zwischen den beiden durch die Schneidzähne 24.1, 26.1 breiter ausgeführten Basisschnitten 35.1, 35.2 verbleibt kein Steg 39, so daß die Falzlinie 36 dort einen doppelt langen Schlitz aufweist, der vorzugsweise in der Signaturmitte im Bereich eines Längsfalzes 42 erzeugt wird.Between the, by the leg cutting edges 31; 32 of the perforating teeth 24; 26 produced leg cuts 40; 41 In each case there is a small web 39, only between the two base cuts 35.1, 35.2 made wider by the cutting teeth 24.1, 26.1 there is no web 39 so that the fold line 36 has a double length slot there, which is preferably in the middle of the signature in the area of a longitudinal fold 42 is produced.

Bei einem zweiten Ausführungsbeispiel (Fig. 5) weist ein Perforiermesser 46 eine Vielzahl von im Abstand a nebeneinander angeordneten Perforierzähnen 45 auf, bei denen die Schneidkanten 47, 48 der Perforierzähne 45 "H"-förmig ausgebildet sind und die Basisschneidkanten 47 der Perforierzähne 45 auf der gemeinsamen Geraden 37 angeordnet sind. Die Perforierzähne 45 sind jeweils durch eine Zahnlücke 54 voneinander getrennt. Nur zwei jeweils in der Mitte, im Bereich eines vorgesehenen Längsfalzes 42 ausgebildete Perforierzähne 45 sind dicht an dicht angeordnet, so daß dort kein Abstand a zwischen den Perforierzähnen 45 entsteht. Die Schenkelschneidkanten 48 sind jeweils an den Enden der Basisschneidkanten 47 in einem Winkel γ ; δ (z. B. γ = δ 90°) zu den Basisschneidkanten 47 angeordnet. Selbstverständlich können die Winkel γ , δ auch unterschiedlich groß sein. Es ist jedoch von Vorteil, wenn zwei, die Zahnlücke 54 bildende, unmittelbar benachbarte Schneidkanten 48, parallel sind.In a second exemplary embodiment (FIG. 5), a perforating knife 46 has a multiplicity of perforating teeth 45 arranged next to one another at a distance a, in which the cutting edges 47, 48 of the perforating teeth 45 are “H” -shaped and the basic cutting edges 47 of the perforating teeth 45 the common straight line 37 are arranged. The perforating teeth 45 are each separated from one another by a tooth gap 54. Only two perforating teeth 45 each formed in the middle, in the area of an intended longitudinal fold 42, are arranged close together so that there is no distance a between the perforating teeth 45. The leg cutting edges 48 are each at the ends of the base cutting edges 47 at an angle γ; δ (z. B. γ = δ 90 °) to the base cutting edges 47. Of course, the angles γ, δ can also be of different sizes. However, it is advantageous if two immediately adjacent cutting edges 48 forming the tooth gap 54 are parallel.

Das Perforiermesser 46 erzeugt in einer mehrlagigen Signatur 9 eine Perforation 51, 52 derart, daß die Signatur 9 entlang oder in der Nähe der Falzlinie 36 eine Vielzahl von sich erstreckenden "H"-förmigen Perforationen 51, 52 , aufweist. Zwischen den, durch die Schenkelschneidxanten 48 erzeugten Schenkelschnitten 52 verbleibt jeweils ein kleiner Steg 53, lediglich zwischen zwei in der Signaturmitte 42 ausgeführten Basisschnitten 51 verbleibt kein Steg 53.The perforating knife 46 creates a perforation 51, 52 in a multi-layer signature 9 such that the signature 9 has a plurality of extending "H" -shaped perforations 51, 52 along or near the fold line 36. Between the thigh cutting edges 48 generated leg cuts 52 each have a small web 53, only between two base cuts 51 made in the signature center 42 no web 53 remains.

Bei einem dritten Ausführungsbeispiel (Fig. 7) weist ein Perforiermesser 56 eine Vielzahl von im Abstand a nebeneinander angeordneten Perforierzähnen 57 auf, bei denen die Schneidkanten 59, 61 der Perforierzähne 57 "liegende Kurbel"-förmig ausgebildet sind, was bedeutet, daß die einer "Kurbelstange" entsprechenden Basisschneidkanten 59 auf einer gemeinsamen Geraden 37 liegen und daß die "Kurbelzapfen" entsprechenden Schenkelschneidkanten 61 der Perforierzähne 57 und die Schenkelschneidkanten 61 zweier unmittelbar benachbarter Perforierzähne 57 wechselseitig zueinander angeordnet sind. Die Perforierzähne 57 sind jeweils durch eine Zahnlücke 58 voneinander getrennt. Nur zwei, jeweils in der Mitte, im Bereich des vorgesehenen Längsfalzes 42 ausgebildeten Perforierzähne 57 sind dicht an dicht angeordnet.In a third exemplary embodiment (FIG. 7), a perforating knife 56 has a multiplicity of perforating teeth 57 which are arranged next to one another at a distance a, in which the cutting edges 59, 61 of the perforating teeth 57 have a "lying crank" shape, which means that the one "Crank rod" corresponding basic cutting edges 59 lie on a common straight line 37 and that the "crank pins" corresponding leg cutting edges 61 of the perforating teeth 57 and the leg cutting edges 61 of two immediately adjacent perforating teeth 57 are mutually arranged. The perforating teeth 57 are each separated from one another by a tooth gap 58. Only two perforating teeth 57, each formed in the middle in the area of the provided longitudinal fold 42, are arranged close together.

Die Schneidkanten 61 sind jeweils an den Enden der Schneidkanten 59 in einem Winkel ε ; ζ (z.B. ε = ζ = 90°) zu den Schneidkanten 59 angeordnet. Selbstverständlich können die Winkel ε ; ζ auch unterschiedlich groß sein. Es ist jedoch von Vorteil wenn zwei, die Zahnlücke 58 bildende, unmittelbar benachbarte Schenkelschneidkanten 61 bzw. deren Verlängerungen parallel sind.The cutting edges 61 are each at the ends of the cutting edges 59 at an angle ε; ζ (e.g. ε = ζ = 90 °) to the cutting edges 59. Of course, the angles ε; ζ can also be of different sizes. However, it is advantageous if two immediately adjacent leg cutting edges 61, or the extensions thereof, forming the tooth gap 58 are parallel.

Das Perforiermesser 56 erzeugt in einer mehrlagigen Signatur 9 eine Perforation 67, 68 derart, daß die Signatur 9 entlang oder in der Nähe der Falzlinie 36 eine Vielzahl von sich erstreckenden "liegende Kurbel"-förmigen Perforationen 67, 68 aufweist, worunter zu verstehen ist, daß die jeweils einer "Kurbelstange" entsprechenden Basisschnitte 67 auf der gemeinsamen Falzline 36 liegen, wobei die den "Kurbelzapfen" entsprechenden Schenkelschnitte 68 wechselseitig zueinander angeordnet sind. Hierbei weisen die "Kurbelzapfen" 68 bis zu einer Signaturmitte 42 von der "Kurbelstange" 67 aus betrachtet gegen den Uhrzeigersinn, von einer Signaturmitte 42 aus im Uhrzeigersinn.The perforating knife 56 produces in a multi-layer Signature 9 has a perforation 67, 68 such that the signature 9 has a plurality of extending "lying crank" -shaped perforations 67, 68 along or in the vicinity of the fold line 36, which is to be understood to mean that each of the "crank rods" corresponding base cuts 67 lie on the common fold line 36, the leg cuts 68 corresponding to the “crank pins” being arranged alternately to one another. Here, the "crank pins" 68 point counterclockwise as viewed from the "crank rod" 67 up to a signature center 42, and clockwise from a signature center 42.

Zwischen den durch die Schenkelschneidkanten 61 erzeugten Schenkelschnitten 68 verbleibt jeweils in kleiner Steg 63, lediglich die in der Signaturmitte, im Bereich des Längsfalzes 42, angeordnete Perforation 67, 68 weist eine aus zwei entgegengesetzten "Kurbeln" bestehende Perforation 67, 68 auf, die keinen Steg 63 zwischen den gleichgewichteten Schenkelschnitten 68 bildet.Between the leg cuts 68 produced by the leg cutting edges 61 each remains in a small web 63, only the perforation 67, 68 arranged in the middle of the signature, in the area of the longitudinal fold 42, has a perforation 67, 68 which consists of two opposing "cranks" and which does not Forms web 63 between the equally weighted leg cuts 68.

TeilelisteParts list

1 Perforierzylinder
2 Grube
3 Messerbalken
4 Aufnahme
5 -
6 Perforiermesser
7 Niederhalter
8 Niederhalter
9 Signatur, Signatur-Ebene
10 -
11 Gegenperforierzylinder
12 Gegenleiste
13 -
14 -
16 -
17 Stahlblech (6)
18 Stahlblech (6)
19 Rückseite (17)
20 -
21 Rückseite (18)
22 -
23 Oberkante (6)
24 Perforierzahn
24.1 Perforierzahn
25 -
26 Perforierzann
26.1 Perforierzahn
27 Zahnlücke
28 Zahnlücke
29 Basisschneidkante
30 Basisschneidkante
31 Schenkelschneidkante
32 Schenkelschneidkante
33 Seitenflanke
34 Seitenflanke
35 Basisschnitt
35.1 Basisschnitt
35.2 Basisschnitt
36 Falzlinie
37 Gerade
38 -
39 Steg
40 Schenkelschnitt (31)
41 Schenkelschnitt (32)
42 Längsfalz, Signaturmitte
43 Unterkante (6)
44 Ausnehmung
45 Perforierzahn
46 Perforiermesser
47 Basisschneidkante (46)
48 Schenkelschneidkante (46)
49 -
50 Ausnehmung
51 Basisschnitt
52 Schenkelschnitt
53 Steg
54 Zahnlücke
55 -
56 Perforiermesser
57 Perforierzahn (56)
58 Zahnlücke
59 Basisschneidkante (57)
60 -
61 Schenkelschneidkante (56)
62 -
63 Steg
64 -
65 -
66 -
67 Basisschnitt, "Kurbelstange"
68 Schenkelschnitt, "Kurbelzaofen"
a Abstand (24 - 26; 45 - 45; 57 - 57)
α Winkel
β Winkel
γ Winkel
δ Winkel
ε Winkel
ζ Winkel
1 perforating cylinder
2 pit
3 cutter bars
4 recording
5 -
6 perforating knives
7 hold-down device
8 hold-down devices
9 signature, signature level
10 -
11 counter perforating cylinders
12 counter bar
13 -
14 -
16 -
17 sheet steel (6)
18 sheet steel (6)
19 rear (17)
20 -
21 back (18)
22 -
23 top edge (6)
24 perforating tooth
24.1 Perforating tooth
25 -
26 perforator
26.1 Perforating tooth
27 tooth gap
28 tooth gap
29 basic cutting edge
30 basic cutting edge
31 leg cutting edge
32 leg cutting edge
33 side flank
34 side flank
35 basic cut
35.1 Basic cut
35.2 Basic cut
36 fold line
37 Straight
38 -
39 footbridge
40 thigh cut (31)
41 thigh cut (32)
42 Longitudinal fold, signature center
43 lower edge (6)
44 recess
45 perforating tooth
46 perforating knives
47 basic cutting edge (46)
48 cutting edge (46)
49 -
50 recess
51 basic cut
52 thigh cut
53 footbridge
54 tooth gap
55 -
56 perforating knives
57 perforating tooth (56)
58 tooth gap
59 basic cutting edge (57)
60 -
61 cutting edge (56)
62 -
63 footbridge
64 -
65 -
66 -
67 basic cut, "crank rod"
68 thigh cut, "cranking furnace"
a distance (24 - 26; 45 - 45; 57 - 57)
α angle
β angle
γ angle
δ angle
ε angle
ζ angle

Claims (7)

1. Signatur (9), bestehend aus mehreren Papierbahnlagen mit einem Falzbruch, dadurch gekennzeichnet, daß die Signatur (9) entlang oder in der Nähe der Falzlinie (36) eine Vielzahl von wechselseitig sich erstreckenden, "U"-förmigen Perforationen (35, 40, 41) aufweist.1. Signature (9), consisting of several paper web layers with a fold break, characterized in that the signature (9) along or near the fold line (36) has a plurality of mutually extending, "U" -shaped perforations (35, 40, 41). 2. Signatur (9), bestehend aus mehreren Papierbahnlagen mit einem Falzbruch, dadurch gekennzeichnet, daß die Signatur (9) entlang oder in der Nähe der Falzlinie (36) eine Vielzahl von sich erstreckenden, "H"-förmigen Perforationen (51, 52) aufweist.2. Signature (9), consisting of several paper web layers with a fold break, characterized in that the signature (9) along or near the fold line (36) a plurality of extending, "H" -shaped perforations (51, 52nd ) having. 3. Signatur (9), bestehend aus mehreren Papierbahnlagen mit einem Falzbruch, dadurch gekennzeichnet, daß die Signatur (9) entlang oder in der Nähe der Falzlinie (36) eine Vielzahl von sich erstreckenden, "liegende Kurbel"-förmigen Perforationen (67, 68) aufweist, daß die "Kurbelzapfen" (68) bis zu einer Signaturmitte (42) gegen den Uhrzeigersinn und ab einer Signaturmitte (42) im Uhrzeigersinn angeordnet sind.3. Signature (9), consisting of several paper web layers with a fold break, characterized in that the signature (9) along or near the fold line (36) has a plurality of extending, "lying crank" -shaped perforations (67, 68) has that the "crank pins" (68) are arranged up to a signature center (42) counterclockwise and from a signature center (42) clockwise. 4. Perforiermesser (6) zum Perforieren von Signaturen (9) vor dem Falzen, wobei das Perforiermesser (6) eine Vielzahl von in einem Abstand (a) nebeneinander angeordneten Perforierzähnen (24, 26; 24.1, 26.1) aufweist, dadurch gekennzeichnet, daß Schneidkanten (29, 31; 30, 32) der Perforierzähne (24, 24.1; 26, 26.1) "U"-förmig ausgebildet sind, daß die Basisschneidkanten (29; 30) der Perforierzähne (24, 24.1; 26, 26.1) auf einer gemeinsamen Geraden (37) liegen, daß die Schenkel (31; 32) unmittelbar benachbarter Perforierzähne (24, 24.1; 26, 26.1) wechselseitig zueinander angeordnet sind.4. perforating knife (6) for perforating signatures (9) prior to folding, the perforating knife (6) having a plurality of perforating teeth (24, 26; 24.1, 26.1) arranged next to one another at a distance (a), characterized in that Cutting edges (29, 31; 30, 32) of the perforating teeth (24, 24.1; 26, 26.1) are formed in a "U" shape so that the basic cutting edges (29; 30) of the perforating teeth (24, 24.1; 26, 26.1) A common straight line (37) is such that the legs (31; 32) of immediately adjacent perforating teeth (24, 24.1; 26, 26.1) are mutually arranged. 5. Perforiermesser (46) zum Perforieren von Signaturen (9) vor dem Falzen, wobei das Perforiermesser (46) eine Vielzahl von in einem Abstand (a) nebeneinander angeordneten Perforierzähnen (45) aufweist, dadurch gekennzeichnet, daß Schneidkanten (47, 48) der Perforierzähne (45) "H"-förmig ausgebildet sind, daß die Basisschneidkanten (47) der Perforierzähne (45) auf einer gemeinsamen Geraden (37) angeordnet sind.5. perforating knife (46) for perforating signatures (9) prior to folding, the perforating knife (46) having a plurality of perforating teeth (45) arranged next to one another at a distance (a), characterized in that cutting edges (47, 48) of the perforating teeth (45) are "H" -shaped that the base cutting edges (47) of the perforating teeth (45) are arranged on a common straight line (37). 6. Perforiermesser (56) zum Perforieren von Signaturen (9) vor dem Falzen, wobei das Perforiermesser (56) eine Vielzahl von in einem Abstand (a) nebeneinander angeordneten Perforierzähnen (57) aufweist, dadurch gekennzeichnet, daß Schneidkanten (59, 61) der Perforierzähne (57) "liegende Kurbel"-förmig ausgebildet sind, daß die Basisschneidkanten (59) der Perforierzähne (57) auf einer gemeinsamen Geraden (37) liegen, daß die Schenkelschneidkante (61) der Perforierzähne (57) und die Schenkelschneidkanten (61) zweier unmittelbar nebeneinander angeordneter Perforierzähne (57) wechselseitig zueinander angeordnet sind, daß die Schenkelschneidkanten (61) bis zu einer Mitte (42) gegen den Uhrzeigersinn und ab der Mitte (42) im Uhrzeigersinn an den Basisschneidkanten (59) angeordnet sind.6. perforating knife (56) for perforating signatures (9) prior to folding, the perforating knife (56) having a plurality of perforating teeth (57) arranged next to one another at a distance (a), characterized in that cutting edges (59, 61) of the perforating teeth (57) are "lying crank" -shaped, that the basic cutting edges (59) of the perforating teeth (57) lie on a common straight line (37), that the leg cutting edge (61) of the perforating teeth (57) and the leg cutting edges (61 ) of two perforating teeth (57) arranged directly next to one another are arranged alternately to one another, that the leg cutting edges (61) are arranged up to a center (42) counterclockwise and from the center (42) clockwise on the base cutting edges (59). 7. Perforiermesser (6, 46, 56) nach den Ansprüchen 4 bis 6, dadurch gekennzeichnet, daß die beiden mittleren Perforierzähne (24.1, 26.1; 45; 57) dicht an dicht angeordnet sind.7. perforating knife (6, 46, 56) according to claims 4 to 6, characterized in that the two central perforating teeth (24.1, 26.1; 45; 57) are arranged close together.
EP19880115034 1987-09-16 1988-09-14 Perforating cutter Expired - Lifetime EP0307891B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3731117 1987-09-16
DE19873731117 DE3731117A1 (en) 1987-09-16 1987-09-16 PERFORATING KNIFE

Publications (3)

Publication Number Publication Date
EP0307891A2 true EP0307891A2 (en) 1989-03-22
EP0307891A3 EP0307891A3 (en) 1990-01-24
EP0307891B1 EP0307891B1 (en) 1993-01-13

Family

ID=6336150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880115034 Expired - Lifetime EP0307891B1 (en) 1987-09-16 1988-09-14 Perforating cutter

Country Status (5)

Country Link
US (1) US4951967A (en)
EP (1) EP0307891B1 (en)
JP (1) JPH0712755B2 (en)
DE (2) DE3731117A1 (en)
SU (1) SU1669392A3 (en)

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EP0701888A3 (en) * 1994-09-06 1996-10-23 Koenig & Bauer Albert Ag Perforating cutter
EP0865885B1 (en) * 1997-03-21 2003-01-29 Tetra Laval Holdings & Finance SA Method of manufacturing perforating tools and a perforating tool manufactured according to the method
WO2009036745A1 (en) * 2007-09-20 2009-03-26 VICTOR Güthoff & Partner GmbH Plastic film having a target tear line and tool for applying the same

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
EP0307891B1 (en) 1993-01-13
EP0307891A3 (en) 1990-01-24
JPH01113291A (en) 1989-05-01
DE3731117A1 (en) 1989-03-30
JPH0712755B2 (en) 1995-02-15
DE3877473D1 (en) 1993-02-25
DE3731117C2 (en) 1990-03-08
SU1669392A3 (en) 1991-08-07
US4951967A (en) 1990-08-28

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