EP1769937A1 - Stapling device with vertically adjustable head - Google Patents

Stapling device with vertically adjustable head Download PDF

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Publication number
EP1769937A1
EP1769937A1 EP06120166A EP06120166A EP1769937A1 EP 1769937 A1 EP1769937 A1 EP 1769937A1 EP 06120166 A EP06120166 A EP 06120166A EP 06120166 A EP06120166 A EP 06120166A EP 1769937 A1 EP1769937 A1 EP 1769937A1
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EP
European Patent Office
Prior art keywords
stapling
rocker
signatures
stapling device
head
Prior art date
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Granted
Application number
EP06120166A
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German (de)
French (fr)
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EP1769937B1 (en
Inventor
Torsten Brünner
Siegmar Tischer
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP1769937A1 publication Critical patent/EP1769937A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00—Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire

Definitions

  • saddle stitchers which singulate folded printed products on a transport device, such as a transport chain or the like, store, collect and gather and then a stapling station and then optionally a further processing unit, such as a marginal cutter, a display or the like, perform, are known.
  • EP 0 916 514 A1 a typical saddle stitcher with a front and a rear collecting chain as a transport device. From folded sheet investors individual folded sheets or folded signatures are separated from stacks, opened and stored on the gathering chains. Between the collecting chains a guide rail is arranged, the upper portion is formed like a blade and the ridge line defines the transport and stitching line. Together with the guide strip, the collecting chains form a substantially roof-shaped support on which the folded sheets or folded signatures are transported astride. In order to securely capture and evenly load the folded sheets deposited on the gathering chains even at high transport speeds, the gathering chains or their carriers run in front of and behind the guide bar, so that a stored folding sheet is simultaneously grasped on both legs.
  • the folded sheets caught by the carriers are transported through the front and rear gathering chains to a stitching station in which stacked signatures or a number of folded signatures are stapled in the fold by means of a clamp, in particular a wire clamp.
  • a clamp in particular a wire clamp.
  • stapling heads arranged above the gathering chain and clincher boxes arranged between the collecting chains instead of the guide strip, which bend the free ends of the staples pierced by the stapling heads through the folded sheets.
  • the stapled folded sheet or folded signatures of at least one of the gathering chains for further processing, for example, for a trim edge, or for display on.
  • adjustable saddle stitching machines have been used to guide collected printed products.
  • machines with continuous collection chains such as various common saddle stitchers known manufacturers
  • both the front chain and the back chain in each case in height, in particular depending on the product thickness, adjustable.
  • Typical guide elements used can, for example, support the printed products from above against the sheet metal web, but only to a limited extent prevent tilting or abutment of the leading printed product edges or smaller internal edges, for example of inserted cards.
  • disturbances in the infeed and outfeed of the stapling area may occur as a result of stoppers, missing sheets or the like, so that frequently downtimes of the saddle stitching machine result.
  • Another generic device is from the European Patent Application EP 1 273 460 A2 known. Again, the problem of keeping the signatures arises the transport path of a saddle stitcher in the stitching station. Here, the problem is posed by a guide member for supporting the number of folded signatures on transport through the lead-in area and / or through the lead-out area.
  • the invention is a stapling device for producing printed products, in particular in a saddle stitcher, wherein the stapling device comprises a stapling carriage, and at least one stapling head for forming and driving a staple into a stack of signatures, and a clincher box for closing the through the Signatures driven staple, wherein the stapling device comprises adjusting means for vertical displacement of the stapling head, for adapting the stapling device to the thickness of the stack of signatures.
  • the invention is characterized in particular by the fact that the signatures are not moved vertically on the transport plane for height adjustment, but the horizontal position of the signatures is always maintained.
  • the stapling device comprises two or more stapling heads.
  • the invention is realized by an embodiment in which the adjusting means a first rocker for adjusting the height of the stapling head and a second Swing arm for controlling the movements of the stapling head, in particular the forming and driving the staple into the stack of signatures, wherein first rocker and second rocker are coupled together.
  • the height of the underside of the stapling head must be adapted to the product thickness, so that the driving actually starts in the correct position or the staple also reaches the Umbieger in the clincher box properly.
  • the control means from which the movements within the stapling head derive to be adjusted to the changed altitude of the stapling head. In this advantageous embodiment, this is done particularly easily by the coupling between the two wings, so that all the necessary height adjustments can be performed simultaneously by a single adjustment mechanism, such as an adjusting screw or a servomotor.
  • the first rocker is mounted at the other end in the common pivot point and the second rocker has at least one cam roller on which is guided in a curved path about a pivot rotatably mounted cam, whereby the movements of the stitching head can be generated wherein the pivot point is within the pivoting range of the at least one cam roller created by the cam track.
  • the pivot point of the cam and the pivot point are on the same axis.
  • FIGS. 1 and 2 are limited to the representation and description of details essential to the invention.
  • Other required for the operation of the stapler elements such as guide, control, drives, fasteners, etc., which in particular also do not differ from the prior art or are borrowed, are not further described and / or omitted for clarity.
  • only one slider 33 is shown for controlling the movements in the stapling head, although typically a driver slider and a clincher slider are used.
  • the stapling carriage 10 is movably mounted on the one hand in a stapling carriage guide 13 for the movement in the transport direction of the signatures 1 and is driven by a single drive or a common drive, such as a vertical shaft.
  • the stapling carriage 10 is connected via a stapling carriage coupling 25 with the stapling head receiving strip 35, such that the movement of the stapling carriage in the transport direction of the signatures 1 is transmitted to the stapling head receiving strip 35.
  • At the stapling head receiving strip 35 of at least one stapling head 30 are arranged. In this way, the at least one stapling head 30 in the transport direction of the signature stack 2 moves, such that there is no relative speed in the transport direction between stapling head 30 and the signature stack 2 when driving the staple into the signature stack 2.
  • the stapling head receiving ledge 35 is guided in a stapling head receiving ledge horizontal guide 40, wherein the stapling head receiving ledge horizontal guide 40 is guided in a stapling head receiving ledge vertical guide 42, so that the stapling head receiving ledge horizontal guide 40 together with the at least one stapling head 30 in the vertical relative to the at least one clincher box 15 and thus also the underside of the Signatures stack 2 can be moved to make an adjustment to different product thicknesses of the signature stack 2 can.
  • the clincher box 15 remains on the same level during the entire movement sequence.
  • the movements within the stapling head 30, in particular the shaping and driving of the staple, but also the wire feed, etc. are derived at least from a slider 33 which is part of the stapling head 30 and which in turn is driven and controlled by a guide on a stapling head drive bar 60 ,
  • the stitching head drive bar 60 in turn is guided in a Heftkopfantriebsangn vertical guide 62, so that the Heftkopfantriebsil 60 can be moved together with the slide 33 in the vertical relative to the at least one clincher box 15 and thus the underside of the signature stack 2.
  • the stapling head drive bar 60 is also moved in normal operation up and down to move the at least one slide 33 in the stapling head up and down.
  • the vertical displacement of the Heftkopfantriebsang 60 via a second coupling 56 which is hinged on one side of the Heftkopfantriebsang 60 on the other hand connected to the second rocker 55 is hinged.
  • the second rocker 55 is pivoted about a fulcrum 68 and has at the other end a cam roller 80, which rolls on a curved path 75 of a cam 76.
  • the cam 76 rotates about a pivot point 78 and is otherwise fixed to the device. From this movement of the stitching head drive bar 60 are derived in turn via the slide movement of the slider 33, the other movements in the stapling head 30 from.
  • the height adjustment due to the change in product thickness is now as follows.
  • the stapling head receiving strip vertical guide 42 is pivotally connected to a first coupling 45, which in turn is connected to a first rocker 50 which is pivotally mounted at the other end to a fixed device pivot point 85.
  • the pivot point 85 is in the pivoting range of the cam roller 80 of the second rocker 55.
  • Particularly advantageous are the pivot point 85 of the first rocker 50 and the pivot point 78 of the cam 76 on the same axis.
  • the first rocker 50 has a rocker coupling 66, e.g. rigid on one side with the first rocker, e.g. connected at right angles and on the other hand articulated to the second rocker 55 in the fulcrum 68.
  • This fulcrum can be displaced vertically by a spindle 65, such as a spindle drive, e.g. a handwheel.
  • the swing coupling 66 has the length zero, so that therefore the rocker 50 is coupled to the rocker 55 together in the fulcrum 68 with each other.
  • the vertical displacement of the fulcrum 68 is effected by a drive 70, such as a linear motor, or that this drive is also connected at another point with the two coupled rockers 50, 55.
  • the spindle 65 may be arranged in a deviating from vertical mounting position, if the corresponding adjusting the other adjusting means.
  • a controller 90 may also be provided which automatically drives the drive 70 in order to perform the desired height adjustment of the stapling head 30 and the stapling head drive bar 60.
  • FIG. 2 shows a further embodiment of the device according to the invention, which represents a special case of the first embodiment of FIG.
  • the rocker 50 and the first coupling 45 are made in one piece and guided in a vertical guide 79.
  • the vertical movement of the slider 77 by the thumbscrew 70 at the same time Heftkopfamsteisten horizontal guide 40 and the pivot point 78 of the cam 76 is moved with, as well as in the first embodiment, of course, the second rocker 55 with the associated parts.
  • the shift no longer takes place on a circular path with an infinitely large radius, ie a straight path.
  • the influence on the cam track displacement during the thickness adjustment becomes even smaller.

Abstract

The apparatus has a stitching carriage (10) conveying a stack of foldable signatures, and a stitching head (30) shaping and driving a staple into the stack of signatures. A clinch box (15) is configured for closing the staple driven through the signatures, and a controller (90) drives a drive (70). An actuating device for vertical displacement of the head is configured to adapt the apparatus to thickness of signatures. The actuating device includes a swinging arm (50) for vertical adjustment of the head and another swinging arm (55) for controlling movement sequences of the head.

Description

Vorrichtungen zum Heften von gefalzten Signaturen bzw. Druckprodukten sind typischerweise in so genannten Sammelheftern oder Sammelheftmaschinen vorgesehen. Derartige Sammelhefter, welche gefalzte Druckprodukte vereinzeln, auf einer Transporteinrichtung, wie beispielsweise einer Transportkette oder dergleichen, ablegen, sammeln und zusammentragen und sie sodann einer Heftstation und anschließend gegebenenfalls einer Weiterverarbeitungseinheit, wie einer Randschneideinrichtung, einer Auslage oder dergleichen, zuführen, sind bekannt.Devices for stapling folded signatures or printed products are typically provided in so-called saddle stitchers or saddle stitching machines. Such saddle stitchers, which singulate folded printed products on a transport device, such as a transport chain or the like, store, collect and gather and then a stapling station and then optionally a further processing unit, such as a marginal cutter, a display or the like, perform, are known.

Beispielsweise offenbart das Dokument EP 0 916 514 A1 einen typischen Sammelhefter mit einer vorderen und einer hinteren Sammelkette als Transporteinrichtung. Von Falzbogenanlegern werden einzelne Falzbogen oder gefalzte Signaturen aus Stapeln vereinzelt, geöffnet und auf die Sammelketten abgelegt. Zwischen den Sammelketten ist eine Führungsleiste angeordnet, deren oberer Abschnitt schneidenförmig ausgebildet ist und deren Gratlinie die Transport- und Heftlinie festlegt. Zusammen mit der Führungsleiste bilden die Sammelketten eine im Wesentlichen dachförmige Auflage, auf der die Falzbogen oder gefalzte Signaturen rittlings transportiert werden. Um die auf die Sammelketten abgelegten Falzbogen auch bei hoher Transportgeschwindigkeit sicher zu erfassen und gleichmäßig zu belasten, laufen die Sammelketten bzw. deren Mitnehmer vor und hinter der Führungsleiste, so dass ein abgelegter Falzbogen gleichzeitig an beiden Schenkeln erfasst wird. Die von den Mitnehmern erfassten Falzbogen werden durch die vordere und die hintere Sammelkette bis zu einer Heftstation transportiert, in der aufeinander liegende Falzbogen oder einer Anzahl von gefalzten Signaturen im Falz mit Hilfe einer Klammer, insbesondere einer Drahtklammer, geheftet werden. Hierzu dienen oberhalb der Sammelkette angeordnete Heftköpfe und zwischen den Sammelketten anstelle der Führungsleiste angeordnete Klinscherkästen, welche die freien Enden der von den Heftköpfen durch die Falzbogen gestochenen Klammern umbiegen. Danach werden die gehefteten Falzbogen oder gefalzten Signaturen von wenigstens einer der Sammelketten zur Weiterverarbeitung, beispielsweise für einen Randbeschnitt, oder zur Auslage weiterbefördert.For example, the document discloses EP 0 916 514 A1 a typical saddle stitcher with a front and a rear collecting chain as a transport device. From folded sheet investors individual folded sheets or folded signatures are separated from stacks, opened and stored on the gathering chains. Between the collecting chains a guide rail is arranged, the upper portion is formed like a blade and the ridge line defines the transport and stitching line. Together with the guide strip, the collecting chains form a substantially roof-shaped support on which the folded sheets or folded signatures are transported astride. In order to securely capture and evenly load the folded sheets deposited on the gathering chains even at high transport speeds, the gathering chains or their carriers run in front of and behind the guide bar, so that a stored folding sheet is simultaneously grasped on both legs. The folded sheets caught by the carriers are transported through the front and rear gathering chains to a stitching station in which stacked signatures or a number of folded signatures are stapled in the fold by means of a clamp, in particular a wire clamp. For this purpose, stapling heads arranged above the gathering chain and clincher boxes arranged between the collecting chains instead of the guide strip, which bend the free ends of the staples pierced by the stapling heads through the folded sheets. After that, the stapled folded sheet or folded signatures of at least one of the gathering chains for further processing, for example, for a trim edge, or for display on.

Durch den zunehmenden Grad der Individualisierung von Druckprodukten, dem so genannten "selektive binding", bei dem in Abhängigkeit des Empfängers unterschiedlich umfangreiche und unterschiedlich viele Signaturen zusammengesammelt werden, wird eine möglichst rasche Anpassungsfähigkeit des Sammelhefters und damit der Heftvorrichtung an eine häufig wechselnde Produktdicke immer wichtiger.Due to the increasing degree of individualization of printed products, the so-called "selective binding", which accumulates differently extensive and different numbers of signatures depending on the recipient, the fastest possible adaptability of the saddle stitcher and thus of the stapling device to frequently changing product thickness becomes more and more important ,

Bislang finden in Sammelheftmaschinen daher verstellbare Einrichtungen zum Führen von gesammelten Druckprodukten Anwendung. Bei Maschinen mit durchgehenden Sammelketten, wie verschiedene gängige Sammelhefter bekannter Hersteller, ist sowohl die Vorderkette als auch die Hinterkette jeweils in ihrer Höhe, insbesondere in Abhängigkeit der Produktstärke, verstellbar. Typische eingesetzte Führungselemente können dabei zum Beispiel die Druckprodukte von oben gegenüber der Blechbahn abstützen, verhindern jedoch nur bedingt ein Abkippen oder ein Anstoßen der vorlaufenden Druckproduktkanten oder kleiner innenliegender Kanten, beispielsweise von eingelegten Karten. Bei diversen Druckprodukten kann es in der Folge zu Störungen in Ein- und Auslauf des Heftbereichs durch Stopper, Fehlbogen oder dergleichen kommen, so dass häufig Stillstandzeiten der Sammelheftmaschine resultieren. Bei durchgehenden Transporteinrichtungen, insbesondere Sammelketten, ist es darüber hinaus notwendig, eine höhenverstellbare Kettenführung vorzusehen. Eine Auslenkung der Sammelkette führt aber häufig zu erhöhtem Verschleiß oder Antriebsproblemen. Im Allgemeinen sollte zudem die Vorderkette der Transporteinrichtung auf einfache Weise entfernbar oder abnehmbar vom Rest der Maschine sein, damit der Heftbereich dem Bediener auf bequeme Art im Bedarfsfall zugänglich ist, was durch eine höhenverstellbare Kettenführung erschwert wird. Eine derartige Vorrichtung ist zum Beispiel aus der europäischen Patentanmeldung EP 1 419 898 A1 bekannt.So far, adjustable saddle stitching machines have been used to guide collected printed products. In machines with continuous collection chains, such as various common saddle stitchers known manufacturers, both the front chain and the back chain in each case in height, in particular depending on the product thickness, adjustable. Typical guide elements used can, for example, support the printed products from above against the sheet metal web, but only to a limited extent prevent tilting or abutment of the leading printed product edges or smaller internal edges, for example of inserted cards. In the case of various printed products, disturbances in the infeed and outfeed of the stapling area may occur as a result of stoppers, missing sheets or the like, so that frequently downtimes of the saddle stitching machine result. In continuous transport devices, especially collecting chains, it is also necessary to provide a height-adjustable chain guide. However, a deflection of the gathering chain often leads to increased wear or drive problems. In general, moreover, the front chain of the conveyor should be easily removable or removable from the rest of the machine so that the stapling area is conveniently accessible to the operator when needed, which is made more difficult by a height-adjustable chain guide. Such a device is for example from the European patent application EP 1 419 898 A1 known.

Eine weitere gattungsgemäße Vorrichtung ist aus der europäischen Patentanmeldung EP 1 273 460 A2 bekannt. Auch hier stellt sich das Problem der Führung der Signaturen auf der Transportstrecke eines Sammelhefters im Bereich der Heftstation. Hier wird das Problem durch ein Führungselement zum Abstützen der Anzahl von gefalzten Signaturen auf dem Transport durch den Einlaufbereich und/oder durch den Auslaufbereich.Another generic device is from the European Patent Application EP 1 273 460 A2 known. Again, the problem of keeping the signatures arises the transport path of a saddle stitcher in the stitching station. Here, the problem is posed by a guide member for supporting the number of folded signatures on transport through the lead-in area and / or through the lead-out area.

Aber bei allen genannten Vorrichtungen aus dem Stand der Technik ist die Anpassung der Heftvorrichtung auf die Produktdicke aufwendig und störanfällig. Es wäre daher wünschenswert, eine Heftvorrichtung in einem Sammelhefter zur Verfügung zu haben mit der eine einfache und vorteilhafterweise automatische Anpassung an die Produktdicke möglich ist, die auch weniger störanfällig ist.But in all the devices mentioned in the prior art, the adaptation of the stapling device to the product thickness is complicated and prone to failure. It would therefore be desirable to have a stapling device in a saddle stitcher with which a simple and advantageously automatic adjustment to the product thickness is possible, which is less prone to failure.

Diese Aufgabe wird mit einer Heftvorrichtung mit den Merkmalen des kennzeichnenden Teils von Anspruch 1 gelöst. Weitere Merkmale ergeben sich aus den Unteransprüchen.This object is achieved with a stapling device having the features of the characterizing part of claim 1. Further features emerge from the subclaims.

Demgemäß handelt es sich bei der Erfindung um eine Heftvorrichtung zur Herstellung von Druckerzeugnissen insbesondere in einem Sammelhefter, wobei die Heftvorrichtung einen Heftschlitten umfasst, sowie wenigstens einen Heftkopf zum Formen und Eintreiben einer Heftklammer in einen Stapel von Signaturen, sowie einen Klinscherkasten zum Schließen der durch die Signaturen getriebene Heftklammer, wobei die Heftvorrichtung Stellmittel umfasst, zur vertikalen Verschiebung des Heftkopfes, zur Anpassung der Heftvorrichtung an die Dicke des Stapels von Signaturen. Gegenüber dem Stand der Technik zeichnet sich die Erfindung also insbesondere da durch aus, dass die Signaturen auf der Transportebene nicht zur Höhenanpassung vertikal bewegt werden, sondern die horizontale Lage der Signaturen stets erhalten bleibt. Stattdessen wird in Abhängigkeit der Produktdicke das Niveau der Heftköpfe verschoben. Auf diese Weise bleibt der Transport der Signaturen auch im Bereich der Heftköpfe vergleichsweise ruhig, wodurch auf Grund der hohen, typischen Betriebsgeschwindigkeiten solcher gattungsgemäßen Sammelhefter die Störanfälligkeit reduziert wird. Vorteilhafterweise umfasst die Heftvorrichtung zwei oder mehr Heftköpfe.Accordingly, the invention is a stapling device for producing printed products, in particular in a saddle stitcher, wherein the stapling device comprises a stapling carriage, and at least one stapling head for forming and driving a staple into a stack of signatures, and a clincher box for closing the through the Signatures driven staple, wherein the stapling device comprises adjusting means for vertical displacement of the stapling head, for adapting the stapling device to the thickness of the stack of signatures. Compared to the prior art, the invention is characterized in particular by the fact that the signatures are not moved vertically on the transport plane for height adjustment, but the horizontal position of the signatures is always maintained. Instead, depending on the product thickness, the level of stapling heads is shifted. In this way, the transport of the signatures remains comparatively quiet even in the area of the stitching heads, as a result of which the susceptibility to failure is reduced due to the high, typical operating speeds of such generic saddle stitchers. Advantageously, the stapling device comprises two or more stapling heads.

Besonders vorteilhaft wird die Erfindung durch eine Ausführungsform realisiert, bei der die Stellmittel eine erste Schwinge zur Höhenverstellung des Heftkopfes und eine zweiten Schwinge zur Steuerung der Bewegungsabläufe des Heftkopfes, insbesondere dem Formen und Eintreiben der Heftklammer in den Stapel von Signaturen umfassen, wobei erste Schwinge und zweite Schwinge miteinander gekoppelt sind. Um eine Höhenanpassung möglich zu machen muss einerseits die Höhenlage der Unterseite des Heftkopfes an die Produktdicke angepasst werden, damit das Eintreiben auch tatsächlich an der richtigen Position beginnt bzw. die Heftklammer auch den Umbieger im Klinscherkasten ordnungsgemäß erreicht. Andererseits müssen auch die Steuermittel, aus denen sich die Bewegungsabläufe innerhalb des Heftkopfs ableiten auf die geänderte Höhenlage des Heftkopfs eingestellt werden. In dieser vorteilhaften Ausführungsform erfolgt dies besonders einfach durch die Kopplung zwischen den beiden Schwingen, so dass durch einen einzigen Verstellmechanismus, etwa eine Stellschraube oder ein Stellmotor gleichzeitig alle erforderlichen Höhenverstellungen durchführbar sind.Particularly advantageous, the invention is realized by an embodiment in which the adjusting means a first rocker for adjusting the height of the stapling head and a second Swing arm for controlling the movements of the stapling head, in particular the forming and driving the staple into the stack of signatures, wherein first rocker and second rocker are coupled together. In order to make a height adjustment possible on the one hand, the height of the underside of the stapling head must be adapted to the product thickness, so that the driving actually starts in the correct position or the staple also reaches the Umbieger in the clincher box properly. On the other hand, the control means, from which the movements within the stapling head derive to be adjusted to the changed altitude of the stapling head. In this advantageous embodiment, this is done particularly easily by the coupling between the two wings, so that all the necessary height adjustments can be performed simultaneously by a single adjustment mechanism, such as an adjusting screw or a servomotor.

In vorteilhafter Weiterbildung dieser Ausführungsform der erfindungsgemäßen Heftvorrichtung ist die erste Schwinge am anderen Ende in dem gemeinsamen Schwenkpunkt gelagert und die zweite Schwinge weist wenigstens eine Kurvenrolle auf die in einer Kurvenbahn einer um einen Drehpunkt drehbar gelagerten Kurvenscheibe geführt wird, womit die Bewegungsabläufe des Heftkopfes erzeugbar sind, wobei der Schwenkpunkt innerhalb des durch die Kurvenbahn erzeugten Schwenkbereichs der wenigstens einen Kurvenrolle befindet. Besonders vorteilhafterweise liegen der Drehpunkt der Kurvenscheibe und der Schwenkpunkt auf der gleichen Achse.In an advantageous embodiment of this embodiment of the stapling device according to the invention, the first rocker is mounted at the other end in the common pivot point and the second rocker has at least one cam roller on which is guided in a curved path about a pivot rotatably mounted cam, whereby the movements of the stitching head can be generated wherein the pivot point is within the pivoting range of the at least one cam roller created by the cam track. Particularly advantageously, the pivot point of the cam and the pivot point are on the same axis.

Bevorzugte Ausführungsformen der erfindungsgemäßen Vorrichtung werden im Folgenden unter Bezugnahme auf die Zeichnungen näher beschrieben. Die Figuren zeigen in schematischer Darstellung:

Fig. 1
eine erste Ausführungsform der erfindungsgemäßen Vorrichtung,
Fig. 2
eine zweite Ausführungsform der erfindungsgemäßen Vorrichtung.
Preferred embodiments of the device according to the invention are described in more detail below with reference to the drawings. The figures show in a schematic representation:
Fig. 1
a first embodiment of the device according to the invention,
Fig. 2
a second embodiment of the device according to the invention.

Die in den Fig. 1 und 2 dargestellten Ausführungsformen der erfindungsgemäßen Heftvorrichtung 100 beschränken sich auf die Darstellung und Beschreibung von erfindungswesentlichen Details. Weitere für den Betrieb der Heftvorrichtung erforderlichen Elemente, wie Führung, Steuerung, Antriebe, Befestigungsmittel usw., die sich insbesondere auch nicht vom Stand der Technik unterscheiden oder dem entlehnt sind, werden nicht weiter beschrieben und / oder zur Verdeutlichung weggelassen. Insbesondere wird lediglich ein Schieber 33 gezeigt für die Steuerung der Bewegungsabläufe im Heftkopf obwohl typischerweise dazu ein Treiberschieber und ein Umbiegerschieber verwendet werden.The embodiments of the stapling device 100 according to the invention shown in FIGS. 1 and 2 are limited to the representation and description of details essential to the invention. Other required for the operation of the stapler elements, such as guide, control, drives, fasteners, etc., which in particular also do not differ from the prior art or are borrowed, are not further described and / or omitted for clarity. In particular, only one slider 33 is shown for controlling the movements in the stapling head, although typically a driver slider and a clincher slider are used.

Auf eine nicht gezeigte, dem Fachmann aber auch aus dem oben angegebenen Stand der Technik bekannte Sammelkette werden in bekannter Weise einzelne Signaturen 1 übereinander zu sattelförmigen Stapeln 2 gesammelt und an eine Heftvorrichtung 100 übergeben, dort geheftet und anschließend an den drei offenen Seiten beschnitten. Durch die Heftvorrichtung 100 wird der Signaturenstapel 2 auf einem Heftschlitten 10 befördert. Seitlich werden die Signaturenstapel 2 von Leitblechen 5 unterstützt. Unterhalb der Signaturenstapel 2 ist wenigstens ein Klinscherkasten 15 angeordnet, der fest mit dem Heftschlitten 10 verbunden ist und der Umbieger umfasst, die die von dem wenigstens einen Heftkopf 30 durch den Signaturenstapel 2 eingetriebene Heftklammer zusammen biegt und damit ein fast fertiges Druckerzeugnis herstellt. Die Anzahl der Heftköpfe 30 und damit auch die Anzahl der Klinscherkästen 15 hängt typischerweise von dem Leistungsbereich des Sammelhefters ab und so sind zwei oder mehr Heftköpfe 30 üblich.In a known chain, not known to those skilled in the art but also from the above-mentioned prior art individual signatures 1 are stacked in a known manner to saddle-shaped stacks 2 and transferred to a stapler 100, stapled there and then trimmed at the three open sides. By the stapling device 100, the signature stack 2 is conveyed on a stapling carriage 10. Laterally, the signature stack 2 are supported by baffles 5. Below the signature stack 2 at least one clincher box 15 is arranged, which is fixedly connected to the stapling carriage 10 and the bender includes, which bends the driven by the at least one stapling head 30 through the signature stack 2 staple together and thus produces an almost finished printed product. The number of stapling heads 30 and thus also the number of clincher boxes 15 typically depend on the power range of the saddle stitcher and so two or more stapling heads 30 are common.

Der Heftschlitten 10 ist einerseits in einer Heftschlittenführung 13 für die Bewegung in Transportrichtung der Signaturen 1 beweglich gelagert und wird von einem Einzelantrieb oder einem gemeinsamen Antrieb, etwa von einer Königswelle angetrieben. Andererseits ist der Heftschlitten 10 über eine Heftschlittenkoppel 25 mit der Heftkopfaufnahmeleiste 35 verbunden, derart, dass die Bewegung des Heftschlittens in Transportrichtung der Signaturen 1 auf die Heftkopfaufnahmeleiste 35 übertragen wird. An der Heftkopfaufnahmeleiste 35 sind der wenigstens eine Heftkopf 30 angeordnet. Auf diese Weise wird der wenigstens ein Heftkopf 30 mit in Transportrichtung des Signaturenstapels 2 mitbewegt, derart, dass es keine Relativgeschwindigkeit in Transportrichtung zwischen Heftkopf 30 und dem Signaturenstapel 2 beim Eintreiben der Heftklammer in den Signaturenstapel 2 gibt.The stapling carriage 10 is movably mounted on the one hand in a stapling carriage guide 13 for the movement in the transport direction of the signatures 1 and is driven by a single drive or a common drive, such as a vertical shaft. On the other hand, the stapling carriage 10 is connected via a stapling carriage coupling 25 with the stapling head receiving strip 35, such that the movement of the stapling carriage in the transport direction of the signatures 1 is transmitted to the stapling head receiving strip 35. At the stapling head receiving strip 35 of at least one stapling head 30 are arranged. In this way, the at least one stapling head 30 in the transport direction of the signature stack 2 moves, such that there is no relative speed in the transport direction between stapling head 30 and the signature stack 2 when driving the staple into the signature stack 2.

Dazu ist die Heftkopfaufnahmeleiste 35 in einer Heftkopfaufnahmeleistenhorizontalführung 40 geführt, wobei die Heftkopfaufnahmeleistenhorizontalführung 40 ihrerseits in einer Heftkopfaufnahmeleistenvertikalführung 42 geführt ist, so dass die Heftkopfaufnahmeleistenhorizontalführung 40 mitsamt dem wenigstens einen Heftkopf 30 in der Vertikalen relativ zu dem wenigstens einen Klinscherkasten 15 und damit auch der Unterseite des Signaturenstapels 2 verschoben werden kann, um eine Einstellung auf unterschiedliche Produktdicken des Signaturenstapels 2 vornehmen zu können. Der Klinscherkasten 15 bleibt dagegen während des gesamten Bewegungsablaufs auf der gleichen Ebene.For this purpose, the stapling head receiving ledge 35 is guided in a stapling head receiving ledge horizontal guide 40, wherein the stapling head receiving ledge horizontal guide 40 is guided in a stapling head receiving ledge vertical guide 42, so that the stapling head receiving ledge horizontal guide 40 together with the at least one stapling head 30 in the vertical relative to the at least one clincher box 15 and thus also the underside of the Signatures stack 2 can be moved to make an adjustment to different product thicknesses of the signature stack 2 can. The clincher box 15, however, remains on the same level during the entire movement sequence.

Die Bewegungsabläufe innerhalb des Heftkopfs 30, insbesondere das Formen und das Eintreiben der Heftklammer, aber auch der Drahtvorschub usw. leiten sich wenigstens von einem Schieber 33 ab der Teil des Heftkopfs 30 ist und der seinerseits durch eine Führung auf einer Heftkopfantriebsleiste 60 angetrieben und gesteuert wird. Die Heftkopfantriebsleiste 60 ist ihrerseits in einer Heftkopfantriebsleistenvertikalführung 62 geführt, so dass auch die Heftkopfantriebsleiste 60 mitsamt des Schiebers 33 in der Vertikalen relativ zu dem wenigstens einen Klinscherkasten 15 und damit auch der Unterseite des Signaturenstapels 2 verschoben werden kann. Die Heftkopfantriebsleiste 60 wird aber auch im normalen Betrieb auf und ab bewegt, um den wenigstens einen Schieber 33 im Heftkopf auf und ab zu bewegen. Die vertikale Verschiebung der Heftkopfantriebsleiste 60 erfolgt über eine zweite Koppel 56 die an der Heftkopfantriebsleiste 60 einseitig gelenkig verbunden ist andererseits mit der zweite Schwinge 55 gelenkig verbunden ist. Die zweite Schwinge 55 wird um einen Hebelpunkt 68 verschwenkt und weist am anderen Ende eine Kurvenrolle 80 auf, die auf einer Kurvenbahn 75 einer Kurvenscheibe 76 abrollt. Die Kurvenscheibe 76 dreht sich dabei um einen Drehpunkt 78 und ist ansonsten gerätefest. Von dieser Bewegung der Heftkopfantriebsleiste 60 leiten sich wiederum über die Schieberbewegung des Schiebers 33 die übrigen Bewegungsabläufe im Heftkopf 30 ab.The movements within the stapling head 30, in particular the shaping and driving of the staple, but also the wire feed, etc. are derived at least from a slider 33 which is part of the stapling head 30 and which in turn is driven and controlled by a guide on a stapling head drive bar 60 , The stitching head drive bar 60 in turn is guided in a Heftkopfantriebsleisten vertical guide 62, so that the Heftkopfantriebsleiste 60 can be moved together with the slide 33 in the vertical relative to the at least one clincher box 15 and thus the underside of the signature stack 2. However, the stapling head drive bar 60 is also moved in normal operation up and down to move the at least one slide 33 in the stapling head up and down. The vertical displacement of the Heftkopfantriebsleiste 60 via a second coupling 56 which is hinged on one side of the Heftkopfantriebsleiste 60 on the other hand connected to the second rocker 55 is hinged. The second rocker 55 is pivoted about a fulcrum 68 and has at the other end a cam roller 80, which rolls on a curved path 75 of a cam 76. The cam 76 rotates about a pivot point 78 and is otherwise fixed to the device. From this movement of the stitching head drive bar 60 are derived in turn via the slide movement of the slider 33, the other movements in the stapling head 30 from.

Die Höhenverstellung auf Grund der Änderung der Produktdicke erfolgt nun wie folgt. Die Heftkopfaufnahmeleistenvertikalführung 42 ist mit einer ersten Koppel 45 gelenkig verbunden, die ihrerseits mit einer ersten Schwinge 50 verbunden ist, die am anderen Ende an einem gerätefesten Schwenkpunkt 85 schwenkbar gelagert ist. Dabei befindet sich der Schwenkpunkt 85 in dem Schwenkbereich der Kurvenrolle 80 der zweiten Schwinge 55. Besonders vorteilhaft liegen der Schwenkpunkt 85 der ersten Schwinge 50 und der Drehpunkt 78 der Kurvenscheibe 76 auf der gleichen Achse.The height adjustment due to the change in product thickness is now as follows. The stapling head receiving strip vertical guide 42 is pivotally connected to a first coupling 45, which in turn is connected to a first rocker 50 which is pivotally mounted at the other end to a fixed device pivot point 85. In this case, the pivot point 85 is in the pivoting range of the cam roller 80 of the second rocker 55. Particularly advantageous are the pivot point 85 of the first rocker 50 and the pivot point 78 of the cam 76 on the same axis.

Die erste Schwinge 50 weist eine Schwingenkoppel 66 auf, die z.B. einseitig starr mit der ersten Schwinge, z.B. rechtwinklig verbunden ist und anderseits mit der zweiten Schwinge 55 in deren Hebelpunkt 68 gelenkig verbunden ist. Dieser Hebelpunkt lässt sich durch eine Spindel 65 vertikal verschieben, etwa durch einen Spindeltrieb, z.B. ein Handrad. In einem bevorzugten Ausführungsbeispiel hat die Schwingenkoppel 66 die Länge Null, so dass also die Schwinge 50 mit der Schwinge 55 gemeinsam in dem Hebelpunkt 68 miteinander gekoppelt ist.The first rocker 50 has a rocker coupling 66, e.g. rigid on one side with the first rocker, e.g. connected at right angles and on the other hand articulated to the second rocker 55 in the fulcrum 68. This fulcrum can be displaced vertically by a spindle 65, such as a spindle drive, e.g. a handwheel. In a preferred embodiment, the swing coupling 66 has the length zero, so that therefore the rocker 50 is coupled to the rocker 55 together in the fulcrum 68 with each other.

Alternativ ist es denkbar, dass die vertikale Verschiebung des Hebelpunktes 68 durch einen Antrieb 70, etwa einen Linearmotor bewirkt wird, oder dass dieser Antrieb auch an einem anderen Punkt mit den beiden gekoppelten Schwingen 50, 55 verbunden ist. Offensichtlich kann die Spindel 65 auch in einer von Vertikalen abweichenden Einbaulage angeordnet sein, wenn dem entsprechende die übrigen Stellmittel angepasst werden. Vorteilhafterweise kann auch eine Steuerung 90 vorgesehen sein, die den Antrieb 70 automatisch so antreibt, um die gewünschte Höhenverstellung von Heftkopf 30 und der Heftkopfantriebsleiste 60 durchzuführen.Alternatively, it is conceivable that the vertical displacement of the fulcrum 68 is effected by a drive 70, such as a linear motor, or that this drive is also connected at another point with the two coupled rockers 50, 55. Obviously, the spindle 65 may be arranged in a deviating from vertical mounting position, if the corresponding adjusting the other adjusting means. Advantageously, a controller 90 may also be provided which automatically drives the drive 70 in order to perform the desired height adjustment of the stapling head 30 and the stapling head drive bar 60.

Wird nun beispielsweise die Spindel 65 derartig betätigt, dass der Hebelpunkt 68 angehoben wird, verschwenken die erste Schwinge 50 und durch die Kopplung 66 zwischen erster Schwinge 50 und zweiter Schwinge 55 auch die zweite Schwinge 55 um den gemeinsamen Schwenkpunkt 85. Dadurch kann die gewünschte Höhenverstellung rasch und in einfacher Weise erfolgen, ohne dass weitere Einstellung vorgenommen werden müssen.If, for example, the spindle 65 is actuated such that the fulcrum 68 is raised, the first rocker 50 and, through the coupling 66 between the first rocker 50 and the second rocker 55, also pivot the second rocker 55 about the common rocker Pivot 85. This allows the desired height adjustment quickly and easily, without further adjustment must be made.

In Fig. 2 ist eine weitere Ausführungsform der erfindungsgemäßen Vorrichtung dargestellt, die einen Spezialfall der ersten Ausführungsform von Fig. 1 darstellt. Hierbei sind die Schwinge 50 und die erste Koppel 45 einstückig ausgeführt und in einer Vertikalführung 79 geführt. Nun wird beim vertikalen Verschieben des Schiebers 77 durch die Rändelschraube 70 gleichzeitig die Heftkopfaufnahmeleistenhorizontalführung 40 und der Drehpunkt 78 der Kurvenscheibe 76 mit verschoben, sowie wie im ersten Ausführungsbeispiel natürlich auch die zweite Schwinge 55 mit den damit verbunden Teilen. Allerdings erfolgt die Verschiebung nun nicht mehr auf einer Kreisbahn mit unendlich großem Radius, also einer geraden Bahn. Dadurch wird der Einfluss auf die Kurvenbahnverschiebung bei der Dickenverstellung noch geringer.FIG. 2 shows a further embodiment of the device according to the invention, which represents a special case of the first embodiment of FIG. Here, the rocker 50 and the first coupling 45 are made in one piece and guided in a vertical guide 79. Now, the vertical movement of the slider 77 by the thumbscrew 70 at the same time Heftkopfaufnahmesteisten horizontal guide 40 and the pivot point 78 of the cam 76 is moved with, as well as in the first embodiment, of course, the second rocker 55 with the associated parts. However, the shift no longer takes place on a circular path with an infinitely large radius, ie a straight path. As a result, the influence on the cam track displacement during the thickness adjustment becomes even smaller.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Signatursignature
22
Stapel von SignaturenStack of signatures
55
Leitblechbaffle
1010
Heftschlittenstitching carriage
1313
HeftschlittenführungStitching carriage guide
1515
Klinscherkastenclincher box
2525
HeftschlittenkoppelStitching carriage coupling
3030
Heftkopfstapling head
3333
Schieberpusher
3535
HeftkopfaufnahmeleisteStapling head Recording Toolbar
4040
HeftkopfaufnahmeleistenhorizontalführungStapling head female strips horizontal guide
4242
HeftkopfaufnahmeleistenvertikalführungStapling head female strips vertical guide
4545
erste Koppelfirst paddock
5050
erste Schwingefirst swingarm
5555
zweite Schwingesecond swingarm
5656
zweite Koppelsecond paddock
6060
HeftkopfantriebsleisteStitching head drive bar
6262
HeftkopfantriebsleistenvertikalführungStitching head drive bar vertical guide
6565
Spindelspindle
6666
Schwingenkoppelswing coupling
6868
Hebelpunktfulcrum
7070
Spindeltriebspindle drive
7575
Kurvenbahncam track
7676
Kurvenscheibecam
7777
Schieberpusher
7878
Drehpunktpivot point
7979
Vertikalführungvertical guide
8080
Kurvenrollefollower
8585
Schwenkpunktpivot point
9090
Steuerungcontrol
100100
Heftvorrichtungstapler

Claims (9)

Heftvorrichtung (100) zur Herstellung von Druckerzeugnissen insbesondere in einem Sammelhefter, wobei die Heftvorrichtung (100) einen Heftschlitten (10) umfasst, sowie wenigstens einen Heftkopf (30) zum Formen und Eintreiben einer Heftklammer in einen Stapel (2) von Signaturen (1), sowie einen Klinscherkasten (15) zum Schließen der durch die Signaturen (1) getriebene Heftklammer,
dadurch gekennzeichnet, dass
die Heftvorrichtung (100) Stellmittel (45, 50, 55, 56, 65, 66, 70, 77) umfasst, zur vertikalen Verschiebung des Heftkopfes (30) zur Anpassung der Heftvorrichtung (100) an die Dicke des Stapels (2) von Signaturen (1).A stapling device (100) for producing printed products, in particular in a saddle stitcher, the stapling device (100) comprising a stapling carriage (10) and at least one stapling head (30) for forming and driving a staple into a stack (2) of signatures (1) , and a clincher box (15) for closing the staple driven by the signatures (1),
characterized in that
the stapling device (100) comprises adjusting means (45, 50, 55, 56, 65, 66, 70, 77) for vertically displacing the stapling head (30) to adapt the stapling device (100) to the thickness of the stack (2) of signatures (1). Heftvorrichtung (100) gemäß Anspruch 1,
dadurch gekennzeichnet, dass
der Klinscherkasten (15) und der Heftschlitten (10) fest miteinander verbunden sind.A stapling device (100) according to claim 1,
characterized in that
the clincher box (15) and the stapling carriage (10) are firmly connected to each other. Heftvorrichtung (100) gemäß Anspruch 1,
dadurch gekennzeichnet, dass
die Stellmittel (45, 50, 55, 56, 65, 66, 70, 77) eine erste Schwinge (50, 77) zur Höhenverstellung des Heftkopfes (30) und eine zweiten Schwinge (55) zur Steuerung der Bewegungsabläufe des Heftkopfes (30), insbesondere dem Formen und Eintreiben der Heftklammer in den Stapel (2) von Signaturen (1), umfassen, wobei erste Schwinge (50, 77) und zweite Schwinge (55) miteinander gekoppelt sind.A stapling device (100) according to claim 1,
characterized in that
the adjusting means (45, 50, 55, 56, 65, 66, 70, 77) a first rocker (50, 77) for height adjustment of the stapling head (30) and a second rocker (55) for controlling the movement sequences of the stapling head (30) in particular forming and driving the staple into the stack (2) of signatures (1), wherein first rocker (50, 77) and second rocker (55) are coupled together. Heftvorrichtung (100) gemäß Anspruch 3,
dadurch gekennzeichnet, dass
die erste Schwinge (50, 77) einseitig zur Höhenverstellung des Heftkopfes (30) an einer Heftkopfaufnahmeleiste (40) gelagert ist und die zweite Schwinge (55), die um einen Hebelpunkt (68) schwingt, zur Steuerung der Bewegungsabläufe des Heftkopfes (30), insbesondere dem Formen und Eintreiben der Heftklammer in den Stapel (2) von Signaturen (1), einseitig an einer Heftkopfantriebsleiste (60) gelagert ist.A stapling device (100) according to claim 3,
characterized in that
the first rocker (50, 77) is mounted on one side for adjusting the height of the stapling head (30) on a stapling head receiving strip (40) and the second rocker (55) oscillates about a lever point (68) for controlling the movement sequences of the stapling head (30) , in particular the shaping and driving of the staple into the stack (2) of signatures (1), is mounted on one side on a stapling head drive strip (60). Heftvorrichtung (100) gemäß Anspruch 3,
dadurch gekennzeichnet, dass
die erste Schwinge (50, 77) und zweite Schwinge (55) um einen gemeinsamen Schwenkpunkt (85) verschwenkbar oder vertikal verschiebbar angeordnet sind.A stapling device (100) according to claim 3,
characterized in that
the first rocker (50, 77) and second rocker (55) are pivotable about a common pivot point (85) or vertically displaceable. Heftvorrichtung (100) gemäß Anspruch 5,
dadurch gekennzeichnet, dass
die erste Schwinge (50) am anderen Ende in dem gemeinsamen Schwenkpunkt (85) gelagert ist und die zweite Schwinge (55) wenigstens eine Kurvenrolle (80) aufweist die in einer Kurvenbahn (75) einer um einen Drehpunkt (78) drehbar gelagerten Kurvenscheibe (76) geführt wird, womit die Bewegungsabläufe des Heftkopfes (30) erzeugbar sind, wobei der Schwenkpunkt (85) innerhalb des durch die Kurvenbahn (75) erzeugten Schwenkbereichs der wenigstens einen Kurvenrolle (80) befindet.A stapling device (100) according to claim 5,
characterized in that
the first rocker (50) is mounted at the other end in the common pivot point (85) and the second rocker (55) at least one cam roller (80) in a curved path (75) of a about a pivot point (78) rotatably mounted cam ( 76) is guided, whereby the movements of the stapling head (30) can be generated, wherein the pivot point (85) within the by the curved path (75) generated pivoting range of the at least one cam roller (80). Heftvorrichtung (100) gemäß Anspruch 6,
dadurch gekennzeichnet, dass
der Drehpunkt (78) der Kurvenscheibe (76) und der Schwenkpunkt (85) auf der gleichen Achse liegen.A stapling device (100) according to claim 6,
characterized in that
the pivot point (78) of the cam (76) and the pivot point (85) lie on the same axis. Heftvorrichtung (100) gemäß Anspruch 3,
dadurch gekennzeichnet, dass
mit einem Verstellmittel (65, 70) die Lage der ersten Schwinge (50) und gleichzeitig der Hebelpunkt (68) der zweiten Schwinge (55) verstellbar ist.A stapling device (100) according to claim 3,
characterized in that
with an adjusting means (65, 70), the position of the first rocker (50) and at the same time the fulcrum (68) of the second rocker (55) is adjustable. Heftvorrichtung (100) gemäß Anspruch 8,
dadurch gekennzeichnet, dass
die Heftvorrichtung (100) eine Steuerung (90) umfasst, womit mittels des Verstellmittels (65, 70) die Verstellung der ersten Schwinge (50, 77) und damit auch der zweiten Schwinge (55) automatisch in Abhängigkeit der Produktdicke des Stapels (2) von Signaturen (1) erzeugbar ist.A stapling device (100) according to claim 8,
characterized in that
the stapling device (100) comprises a control (90), whereby by means of the adjusting means (65, 70) the adjustment of the first rocker (50, 77) and thus also of the second rocker (55) automatically depending on the product thickness of the stack (2) of signatures (1) can be generated.
EP06120166A 2005-09-29 2006-09-06 Stapling device with a vertically adjustable stapling head Not-in-force EP1769937B1 (en)

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DE102005046683A DE102005046683A1 (en) 2005-09-29 2005-09-29 stapler

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EP1769937B1 EP1769937B1 (en) 2012-06-27

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EP (1) EP1769937B1 (en)
JP (1) JP4786488B2 (en)
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ITCR20100002A1 (en) * 2010-02-02 2011-08-03 Bizzozero Mica Srl PENDULUM EQUIPMENT FOR SEWING WITH METAL WIRE
EP2353816A1 (en) * 2010-02-02 2011-08-10 Bizzozero Mica Srl Automatic pendular stapling apparatus
EP2361785A1 (en) 2010-02-18 2011-08-31 Müller Martini Holding AG Method of binding printed products with a binding machine and a binding machine for carrying out the method.
US8424860B2 (en) 2010-02-18 2013-04-23 Müller Martini Holding AG Stitcher for variable thickness products

Also Published As

Publication number Publication date
US7637489B2 (en) 2009-12-29
JP4786488B2 (en) 2011-10-05
CN100542921C (en) 2009-09-23
US20070069443A1 (en) 2007-03-29
EP1769937B1 (en) 2012-06-27
JP2007090883A (en) 2007-04-12
CN1939754A (en) 2007-04-04
DE102005046683A1 (en) 2007-04-05

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