EP0187642A2 - Web-severing device for a web-fed rotary printing press - Google Patents

Web-severing device for a web-fed rotary printing press Download PDF

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Publication number
EP0187642A2
EP0187642A2 EP86100049A EP86100049A EP0187642A2 EP 0187642 A2 EP0187642 A2 EP 0187642A2 EP 86100049 A EP86100049 A EP 86100049A EP 86100049 A EP86100049 A EP 86100049A EP 0187642 A2 EP0187642 A2 EP 0187642A2
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EP
European Patent Office
Prior art keywords
web
separating device
printing material
control cam
material web
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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
EP86100049A
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German (de)
French (fr)
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EP0187642A3 (en
EP0187642B1 (en
Inventor
Nikolaus Nawrath
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Manroland AG
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MAN Roland Druckmaschinen AG
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0187642A2 publication Critical patent/EP0187642A2/en
Publication of EP0187642A3 publication Critical patent/EP0187642A3/en
Application granted granted Critical
Publication of EP0187642B1 publication Critical patent/EP0187642B1/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines

Definitions

  • the invention relates to a printing material web separating device in a web-fed rotary printing press with a separating device which can be actuated when the printing material web is torn to sever the web and arranged transversely to the direction of travel thereof.
  • the object of the invention is to provide a separating device for severing a printing material web in the event of a web break, which is integrated in a roller, so that in normal operation this roller performs a paper guide or transport function can practice while when a web break occurs, the roller with the separating device arranged in this should cut the printing material web.
  • the paper guide roller 1 comprises a freely rotatable roller jacket 2, which is carried along for example by friction or by the printing material web 5 which at least partially wraps around it.
  • the paper guide roller 1 can be arranged in a conventional manner between two side walls of a printing machine, not shown, via axle journals 3 and 4, specifically at a point where a certain web guide or guide function is also required and which is expedient for severing the torn web, to prevent damage to the printing unit.
  • a control cam 6 is rotatably arranged on the journal 4.
  • the control curve 6 has an increase or a control area in the form of a tip 7.
  • a roller 8, which is arranged approximately in the middle of a lever 9, is pulled against the control cam 6.
  • One end of the lever 9 is provided with a bolt 10 and at the other end a tension spring 11 engages, which pulls the roller 8 against the control cam 6.
  • a separating knife 12, which is preferably equipped with continuous teeth 13, serves as the separating device.
  • the paper guide roller 1 can thus perform a transport and guide function for the web 5 in a conventional manner. If a web break detection device (not shown) indicates that the web 5 has torn, then in the manner according to the invention the separating knife 12 is pivoted out of the jacket contour of the roll jacket 2, preferably in the manner shown in FIG. 3, in which the cutting teeth 13 against the web 5 are directed so that it is cut by the cutting knife 12.
  • a cover for example in the form of a protective hood 15, is preferably used.
  • the cutting teeth 13 are each in the extended position (FIG. 3).
  • the cutting knife 12 is pivoted out in that the lever 9 is raised by the roller 8 when the locally fixed tip 7 of the control cam 6 overflows. While the control cam 6 and thus the tip 7 revolve together with the roller shell 2 and with the lever 9, the tension spring 11 and the roller 8 in normal operation, the control cam 6 is blocked on the axle pin 4 when a web break is found.
  • the control cam points to this 6 has a recess 16 into which a pawl 17 can engage in order to trigger the blocking process.
  • the control cam 6 can no longer rotate, so that now only the roller shell 2 and with it the separating knife 12 and the lever 9, the spring 11 and the roller 8 rotate.
  • the separating knife 12 pivots in such a way that the cutting teeth 13 are directed against the web 5 for the purpose of severing it.
  • the pawl 17, which is rotatable about a pin 18, is controlled via an armature 19 by an electromagnet 20.
  • the electromagnet 20 is activated by an electrical signal generated by a well-known electronic device when the web breaks becomes.
  • the separating device according to the invention does not require any additional space, since it can be arranged in a conventional paper guide roller.

Abstract

Zur Durchtrennung einer gerissenen Bedruckstoffbahn (5) wird im Mantel (2) einer Papierleitwalze (1) ein aus der mantelkontur herausschwenkbares Trennmesser (12) positioniert. Beim Auftreten eines Bahnrisses wird durch eine Klinke (17) eine im Normalbetrieb mitrotierende Steuerkurve (6) blockiert, wodurch über eine Rolle (8) durch einen Hebel (9) das Trennmesser (12) aus der Kontur des Mantels (2) herausgehoben wird, so daß die Schneidzähne (13) des Trennmessers (12) gegen die Druckträgerbahn (5) gerichtet sind, um diese zu durchtrennen.

Figure imgaf001
In order to sever a torn printing material web (5), a separating knife (12) which can be swung out of the contour of the jacket is positioned in the jacket (2) of a paper guide roller (1). When a web break occurs, a pawl (17) blocks a control cam (6) that rotates during normal operation, whereby the separating knife (12) is lifted out of the contour of the jacket (2) by means of a roller (8) by means of a lever (9), so that the cutting teeth (13) of the separating knife (12) are directed against the print carrier web (5) in order to cut them.
Figure imgaf001

Description

Die Erfindung betrifft eine Bedruckstoffbahn-Trennvorrichtung in einer Rollenrotations-Druckmaschine mit einer beim Bedruckstoffbahnriß zum Durchtrennen der Bahn betätigbaren quer zur Laufrichrichtung derselben angeordneten Trennvorrichtung.The invention relates to a printing material web separating device in a web-fed rotary printing press with a separating device which can be actuated when the printing material web is torn to sever the web and arranged transversely to the direction of travel thereof.

In Rollenrotations-Druckmaschinen besteht bekanntlich die Gefahr, daß bei einem Reißen der Bedruckstoffbahn, beispielsweise einer herkömmlichen Papierbahn, durch Aufwickeln derselben eine erhebliche Beschädigung der Druckwerkzylinder auftritt. Wie beispielshaft die US-Patentschrift 2 653 536 (insbesondere Figuren 12 bis 15) zeigt, werden deshalb vorzugsweise jeweils vor den Druckwerkzylindern quer zur Laufrichtung der Bedruckstoffbahn Trennvorrichtungen mit scherenförmigen Schneidmessern positioniert, die beim Auftreten eines Bahnrisses betätigt werden und die Bedruckstoffbahn abkappen bzw. durchschneiden. Die bekannten Trennvorrichtungen sind großvolumig und benötigen dementsprechend viel Raum. Im Normalbetrieb üben sie keinerlei sinnvolle Funktionen aus.As is known, in web-fed rotary printing machines there is a risk that if the printing material web tears, for example a conventional paper web, there will be considerable damage to the printing unit cylinders by winding the same. As is shown, for example, by US Pat. No. 2,653,536 (in particular FIGS. 12 to 15), separating devices with scissor-shaped cutting knives are preferably positioned in front of the printing unit cylinders transversely to the direction of travel of the printing material web . The known separation devices are large in volume and accordingly require a lot of space. They do not perform any useful functions in normal operation.

Aufgabe der Erfindung ist es, eine Trennvorrichtung zum Durchtrennen einer Bedruckstoffbahn im Falle eines Bahnrisses zu schaffen, die in einer Walze integriert ist, so,daß im Normalbetrieb diese Walze eine Papierleit- bzw. Transportfunktion ausüben kann, während beim Auftreten eines Bahnrisses die Walze mit der in dieser angeordneten Trennvorrichtung die Bedruckstoffbahn zerschneiden soll.The object of the invention is to provide a separating device for severing a printing material web in the event of a web break, which is integrated in a roller, so that in normal operation this roller performs a paper guide or transport function can practice while when a web break occurs, the roller with the separating device arranged in this should cut the printing material web.

Diese Aufgabe wird durch die Anwendung der Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst. Weiterbildungen ergeben sich aus den Unteransprüchen und aus der Beschreibung in Verbindung mit der Zeichnung. Diese zeigt die erfindungsgemäße Bedruckstoffbahn-Trennvorrichtung in vereinfachter Form in einer Papierleitwalze.This object is achieved by applying the features of the characterizing part of patent claim 1. Further developments result from the subclaims and from the description in connection with the drawing. This shows the printing material web separating device according to the invention in a simplified form in a paper guide roller.

Die Papierleitwalze 1 umfaßt einen frei drehbaren Walzenmantel 2, der beispielsweise durch Friktion oder durch die diesen zumindest teilweise umschlingende Bedruckstoffbahn 5 mitgenommen wird. Über Achszapfen 3 und 4 kann die Papierleitwalze 1 in herkömmlicher Weise zwischen zwei nicht dargestellten Seitenwänden einer Druckmaschine angeordnet werden und zwar an einer Stelle, an der auch eine gewisse Bahnleit- bzw. Führungsfunktion erforderlich ist und die zweckmäßig für die Durchtrennung der gerissenen Bahn ist, um Druckwerkschäden zu verhindern.The paper guide roller 1 comprises a freely rotatable roller jacket 2, which is carried along for example by friction or by the printing material web 5 which at least partially wraps around it. The paper guide roller 1 can be arranged in a conventional manner between two side walls of a printing machine, not shown, via axle journals 3 and 4, specifically at a point where a certain web guide or guide function is also required and which is expedient for severing the torn web, to prevent damage to the printing unit.

Im Inneren der Papierleitwalze 1 oder zumindest an einer Stirnseite ist eine Steuerkurve 6 drehbar auf dem Achszapfen 4 angeordnet. Die Steuerkurve 6 weist eine Erhöhung bzw. einen Steuerbereich in Form einer Spitze 7 auf. Gegen die Steuerkurve 6 wird eine Rolle 8 gezogen, die etwa in der Mitte eines Hebels 9 angeordnet ist. Ein Ende des Hebels 9 ist mit einem Bolzen 10 versehen und am anderen Ende greift eine Zugfeder 11 an, die die Rolle 8 gegen die Steuerkurve 6 zieht. In erfindungsgemäßer Weise dient als Trennvorrichtung ein Trennmesser 12, das vorzugsweise mit durchgehenden Zähnen 13 ausgestattet ist. Das Trennmesser 12 liegt in einer ir Axialrichtung verlaufenden Ausnehmung 14 des Walzenmantels 2, ir der Weise, daß in etwa die Ausnehmung 14 durch das Trennmesser 12 ausgefüllt ist, so daß sich eine annähernd stoßfreie Ausbildung der äußeren Mantelkontur ergibt, die für den Bahntransport im N=rmalbetrieb gut geeignet ist.In the interior of the paper guide roller 1 or at least on one end face, a control cam 6 is rotatably arranged on the journal 4. The control curve 6 has an increase or a control area in the form of a tip 7. A roller 8, which is arranged approximately in the middle of a lever 9, is pulled against the control cam 6. One end of the lever 9 is provided with a bolt 10 and at the other end a tension spring 11 engages, which pulls the roller 8 against the control cam 6. In the manner according to the invention, a separating knife 12, which is preferably equipped with continuous teeth 13, serves as the separating device. The separating knife 12 lies in an axial direction recess 14 of the roll shell 2, ir in such a way that the recess 14 is filled by the separating knife 12, so that there is an almost shock-free formation of the outer jacket contour, which is necessary for the rail transport in the north = normal operation is well suited.

Im Normalbetrieb kann somit die Papierleitwalze 1 in herkömmlicher Weise eine Transport- und Leitfunktion für die Bahn 5 ausüben. Wird durch eine nicht dargestellte Bahnrißfeststellvorrichtung angezeigt, daß die Bahn 5 gerissen ist, so erfolgt in erfindungsgemäßer Weise ein Herausschwenken des Trennmessers 12 aus der Mantelkontur des Walzenmantels 2 vorzugsweise in der in Fig.3 dargestellten Weise, bei der die Schneidzähne 13 gegen die Bahn 5 gerichtet sind, so daß diese durch das Trennmesser 12 zerschnitten wird.In normal operation, the paper guide roller 1 can thus perform a transport and guide function for the web 5 in a conventional manner. If a web break detection device (not shown) indicates that the web 5 has torn, then in the manner according to the invention the separating knife 12 is pivoted out of the jacket contour of the roll jacket 2, preferably in the manner shown in FIG. 3, in which the cutting teeth 13 against the web 5 are directed so that it is cut by the cutting knife 12.

Das Herausschwenken des Trennmessers 12 aus der Mantelkontur des Walzenmantels 2 wird im nachfolgenden näher erläutert. Um im Falle eines Bahnrisses, d.h. bei herausgeschwenktem Trennmesser 12, die Unfallgefahr zu reduzieren, wird vorzugsweise eine Abdeckung, beispielsweise in Form einer Schutzhaube 15, verwendet. In der dargestellten Position der Schutzhaube 15 befinden sich die Schneidzähne 13 jeweils in der ausgefahrenen Stellung (Fig. 3). Das Herausschwenken des Trennmessers 12 erfolgt dadurch, daß der Hebel 9 beim Überlaufen der örtlich nunmehr feststehenden Spitze 7 der Steuerkurve 6 durch die Rolle 8 angehoben wird. Während im Normalbetrieb die Steuerkurve 6 und somit die Spitze 7 zusammen mit dem Walzenmantel 2 und mit dem Hebel 9, der Zugfeder 11 und der Rolle 8 umlaufen, erfolgt bei Feststellung eines Bahnrisses die Blockierung der Steuerkurve 6 auf den Achszapfen 4. Hierfür weist die Steuerkurve 6 eine Ausnehmung 16 auf, in die zur Auslösung des Blockiervorganges eine Klinke 17 einfallen kann. Nach dem Einfallen der Klinke 17 in die Ausnehmung 16 der Steuerkurve 6 kann sich die Steuerkurve 6 nicht mehr mitdrehen, so daß nunmehr lediglich der Walzenmantel 2 und mit diesem das Trennmesser 12 sowie der Hebel 9, die Feder 11 und die Rolle 8 umlaufen. Dadurch kommt es jeweils bei der in Fig.3 dargestellten Stellung des Walzenmantels 2 zum Verschwenken des Trennmessers 12 in der Weise, daß die Schneidzähne 13 gegen die Bahn 5 zwecks deren Durchtrennung gerichtet werden.The pivoting out of the separating knife 12 from the jacket contour of the roll jacket 2 is explained in more detail below. In the event of a web break, i.e. When the cutting knife 12 is pivoted out to reduce the risk of an accident, a cover, for example in the form of a protective hood 15, is preferably used. In the illustrated position of the protective hood 15, the cutting teeth 13 are each in the extended position (FIG. 3). The cutting knife 12 is pivoted out in that the lever 9 is raised by the roller 8 when the locally fixed tip 7 of the control cam 6 overflows. While the control cam 6 and thus the tip 7 revolve together with the roller shell 2 and with the lever 9, the tension spring 11 and the roller 8 in normal operation, the control cam 6 is blocked on the axle pin 4 when a web break is found. The control cam points to this 6 has a recess 16 into which a pawl 17 can engage in order to trigger the blocking process. After the latch 17 engages in the recess 16 of the control cam 6, the control cam 6 can no longer rotate, so that now only the roller shell 2 and with it the separating knife 12 and the lever 9, the spring 11 and the roller 8 rotate. As a result, in the position of the roll shell 2 shown in FIG. 3, the separating knife 12 pivots in such a way that the cutting teeth 13 are directed against the web 5 for the purpose of severing it.

Die Steuerung der Klinke 17, die um einen Bolzen 18 drehbar ist, erfolgt über einen Anker 19 durch einen Elektromagnet 20. Der Elektromagnet 20 wird durch ein elektrisches Signal aktiviert, das durch eine allgemein bekannte elektronische Vorrichtung erzeugt wird, wenn das Reißen der Bahn festgestellt wird.The pawl 17, which is rotatable about a pin 18, is controlled via an armature 19 by an electromagnet 20. The electromagnet 20 is activated by an electrical signal generated by a well-known electronic device when the web breaks becomes.

Wie die Figuren 1 bis 3 zeigen, benötigt die erfindungsgemäße Trennvorrichtung keinen zusätzlichen Raum, da sie in einer herkömmlichen Papierleitwalze angeordnet werden kann.As FIGS. 1 to 3 show, the separating device according to the invention does not require any additional space, since it can be arranged in a conventional paper guide roller.

Claims (3)

1. Bedruckstoffbahn-Trennvorrichtung in einer Rollenrotations-Druckmaschine mit einer beim Bedruckstoffbahnriß zum Durchtrennen der Bahn betätigbaren, quer zur Laufrichtung derselben angeordneten Trennvorrichtung,
dadurch gekennzeichnet, daß die Trennvorrichtung (12, 13) in einer in Achsrichtung verlaufenden Ausnehmung (14) des Mantels (2) einer von der Bedruckstoffbahn (5) teilweise umschlungenen, rotierenden Papierleitwalze (1) angeordnet ist, und daß die Trennvorrichtung (12, 13) mit der Schneidkante (13) beim Auftreten eines Bedruckstoffbahnrisses aus der kreiszylindrischen Mantelkontur heraushebbar ist.1. printing material web separating device in a web-fed rotary printing machine with a separating device which can be actuated in the printing material web tear to cut the web and is arranged transversely to the running direction thereof,
characterized in that the separating device (12, 13) is arranged in an axially extending recess (14) of the casing (2) of a rotating paper guide roller (1) partially wrapped by the printing material web (5), and in that the separating device (12, 13) can be lifted out of the circular cylindrical jacket contour with the cutting edge (13) when a printing material web tear occurs. 2. Bedruckstoffbahn-Trennvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die in der Ausnehmung (14) angeordnete Trennvorrichtung (12, 13) mit einer Schneidkante (13) durch einen Hebel (9) anhebbar ist, der durch eine Feder (11) gegen eine auf einem Achszapfen (4) der Papierleitwalze (1) angeordnete, laufende Steuerkurve (6) gezogen wird, deren Rotation beim Feststellen eines Bahnrisses durch eine in eine Ausnehmung (16) einfallende Sperrklinke (17) in ihrer Rotation blockierbar ist, so daß durch eine Erhebung (7) an der Steuerkurve (6) bei jeder Umdrehung des frei umlaufenden Mantels (2) der Papierleitwalze (1) der mit diesem umlaufende Hebel (9) durch die auf der stehenden Steuerkurve (6) ablaufende Rolle (8) zum Herausschwenken der Trennvorrichtung (12, 13) angehoben wird.2. Printing material web separating device according to claim 1, characterized in that the separating device (12, 13) arranged in the recess (14) can be raised with a cutting edge (13) by a lever (9) which is counteracted by a spring (11) a running control cam (6) arranged on an axle pin (4) of the paper guide roller (1) is pulled, the rotation of which can be blocked in its rotation when a web break is detected by a pawl (17) falling into a recess (16), so that an elevation (7) on the control cam (6) for each revolution of the freely rotating jacket (2) of the paper guide roller (1) for the lever (9) rotating with it by the roller (8) running on the standing control cam (6) to pivot out the separating device (12, 13) is raised. 3. Bedruckstoffbahn-Trennvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Klinke (17) durch einen Elektromagneten (20) beim Auftreten eines Druckträgerbahnrisses in die Ausnehmung (16) der Steuerkurve (6) einführbar ist.3. substrate separating device according to claim 2, characterized in that the pawl (17) by an electromagnet (20) when a print carrier web tear occurs in the recess (16) of the control cam (6) can be inserted.
EP86100049A 1985-01-11 1986-01-03 Web-severing device for a web-fed rotary printing press Expired - Lifetime EP0187642B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3500719A DE3500719C2 (en) 1985-01-11 1985-01-11 Device for avoiding printing unit damage in a web-fed rotary printing press
DE3500719 1985-01-11

Publications (3)

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EP0187642A2 true EP0187642A2 (en) 1986-07-16
EP0187642A3 EP0187642A3 (en) 1988-04-20
EP0187642B1 EP0187642B1 (en) 1990-12-12

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EP86100049A Expired - Lifetime EP0187642B1 (en) 1985-01-11 1986-01-03 Web-severing device for a web-fed rotary printing press

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US (1) US4676159A (en)
EP (1) EP0187642B1 (en)
JP (1) JPS61162460A (en)
DE (1) DE3500719C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002344A1 (en) * 2000-06-30 2002-01-10 Silverbrook Research Pty Ltd A separating device for a print engine
AU2000253737B2 (en) * 2000-06-30 2004-04-29 Memjet Technology Limited A separating device for a print engine
CN111268500A (en) * 2020-01-15 2020-06-12 广东中烟工业有限责任公司 Cable winding device
CN113425188A (en) * 2021-07-26 2021-09-24 黄美值 Paper taking box for public washroom

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DE4039108C1 (en) * 1990-12-07 1992-04-16 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5228388A (en) * 1991-05-14 1993-07-20 Brown William R Scoring or perforating bar for offset presses
US5365843A (en) * 1993-05-26 1994-11-22 Heidelberg Druckmaschinen Ag Printing press with web breaking assembly
DE4340836C1 (en) * 1993-12-01 1995-02-16 Roland Man Druckmasch Web cutting device for web-fed rotary printing machines
US6595131B2 (en) * 2001-03-15 2003-07-22 Graphic Technology, Inc. Sheeting apparatus and method for a printing press
DE102006044610B4 (en) * 2006-09-19 2008-11-20 WINKLER+DüNNEBIER AG Device for cutting and / or embossing a blank or a material web
US20080108491A1 (en) * 2007-02-01 2008-05-08 Mike Wilkinson Method of manufacturing a supplemental label
US20080095963A1 (en) * 2007-02-06 2008-04-24 Vestcom New Century Llc Supplemental label
US8261477B1 (en) 2008-05-07 2012-09-11 Vestcom New Century Llc Label
JP5603203B2 (en) * 2010-11-02 2014-10-08 株式会社小森コーポレーション Web cutting device
CN111620169B (en) * 2020-06-12 2021-12-10 扬州君品电子科技有限公司 Foil positioning and cutting forming device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002344A1 (en) * 2000-06-30 2002-01-10 Silverbrook Research Pty Ltd A separating device for a print engine
AU2000253737B2 (en) * 2000-06-30 2004-04-29 Memjet Technology Limited A separating device for a print engine
CN111268500A (en) * 2020-01-15 2020-06-12 广东中烟工业有限责任公司 Cable winding device
CN111268500B (en) * 2020-01-15 2022-05-10 广东中烟工业有限责任公司 Cable winding device
CN113425188A (en) * 2021-07-26 2021-09-24 黄美值 Paper taking box for public washroom
CN113425188B (en) * 2021-07-26 2022-12-09 淮北星城信息科技有限公司 Paper taking box for public washroom

Also Published As

Publication number Publication date
EP0187642A3 (en) 1988-04-20
US4676159A (en) 1987-06-30
EP0187642B1 (en) 1990-12-12
JPS61162460A (en) 1986-07-23
DE3500719A1 (en) 1986-07-17
DE3500719C2 (en) 1986-11-06

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