EP0101071A2 - Paper feeding device for printing installations - Google Patents

Paper feeding device for printing installations Download PDF

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Publication number
EP0101071A2
EP0101071A2 EP83107918A EP83107918A EP0101071A2 EP 0101071 A2 EP0101071 A2 EP 0101071A2 EP 83107918 A EP83107918 A EP 83107918A EP 83107918 A EP83107918 A EP 83107918A EP 0101071 A2 EP0101071 A2 EP 0101071A2
Authority
EP
European Patent Office
Prior art keywords
paper
paper web
roll
transport device
take
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
EP83107918A
Other languages
German (de)
French (fr)
Other versions
EP0101071A3 (en
EP0101071B1 (en
Inventor
Alfred Demmel
Peter Ing.-Grad. Rumpel
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to AT83107918T priority Critical patent/ATE25947T1/en
Publication of EP0101071A2 publication Critical patent/EP0101071A2/en
Publication of EP0101071A3 publication Critical patent/EP0101071A3/en
Application granted granted Critical
Publication of EP0101071B1 publication Critical patent/EP0101071B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16—Means for tensioning or winding the web

Definitions

  • the invention relates to a paper transport device according to the preamble of patent claim 1.
  • printer devices which have so-called journal units as paper transport devices.
  • paper transport devices which serve to transport roll paper from a supply roll to a take-up roll without interruption, i.e. all of the paper is wrapped.
  • a pressure bar or the like is arranged, over which the paper is drawn and on which printing is carried out line by line.
  • the paper has to travel a sufficiently large distance between several deflections.
  • the journal unit is bound to a certain size.
  • the deflecting rods for deflecting the paper run and the supply roll or the take-up roll must have sufficient axis parallelism. If this requirement is not met, there is a risk that the paper will migrate sideways to the direction of transport. On the one hand, this leads to a loosely wound winding roll without precisely aligned edges, and increases the risk of the paper tearing at the edges. On the other hand, this leads to an increase in the resistance to the rotational movement of the take-up roll during paper transport, so that the paper web is often torn off. Because the manufacturing tolerances are very large maintenance of sufficient axis parallelism would require expensive adjustment work with special adjustment gauges.
  • a ring is provided on a deflecting rod in order to enlarge the transport path.
  • a spring is provided to generate the braking force, which presses against the ring.
  • a printer device which has a printing unit 1, which is moved via an electrical drive device along a record carrier to be printed.
  • the details required for this are not shown.
  • the record carrier for example an endless paper web 10
  • the record carrier is brought via the paper transport device described in more detail below into the writing line area opposite the printing unit 1, and is transported further after printing on one line.
  • the paper transport device shown in Fig. 1 consists of a trough-shaped recess 2, which is located in a frame of the printer device, not shown here. It also consists of a deflecting rod 3, a driving roller 4, a pressure bar 5, which forms the pressure area, and a winding roller 6. These parts are, as shown in FIG. 2 in the arrangement of the deflecting rod 3, fastened between two guide parts of the frame or rotatably mounted. Further, 1 is a ring in Fig. 8 'port path to increase the trans and a spring element 9 for tightening of the paper web 10 to which by way of Fig. 2 will be discussed in more detail.
  • the transport path here is the path that the paper web 10 travels between the supply roll 11 and the take-up roll 6.
  • the left guide part forms a contact edge 7.
  • the ring 8 is attached to the deflecting rod 3 to enlarge the transport path, against which the spring element 9 presses.
  • the mode of operation of the paper transport device according to the invention is described below with reference to FIGS. 1 and 2.
  • the paper web 10 is due to the Rotational movement of the take-up roll 6 wound on it, and unwound from a supply roll 11 lying in the trough-shaped depression 2.
  • the drive roller 6 is moved by a drive device, not shown here.
  • the paper web 10 runs over the deflecting rod 3, also sets the driving roller 4 in a rotational movement, and runs over the pressure bar 5 to the winding roller 6.
  • the driving roller 4 can be used to register the length of the transported paper web 10.
  • a measuring device (not shown here) is provided, which ensures that, for example, the paper web 10 is moved line by line over the pressure bar 5.
  • the paper transport device Due to the increased transport path through the ring 8, the paper web 10 is pressed against the contact edge 7 during transport. The force of the spring element 9 against the ring 8 reinforces this effect depending on this force. In this way, the paper web 10 is wound tightly and with precisely aligned edges on the take-up roll 6. Since no large distances between the supply roll 11, deflecting rod 3, driving roll 4 or pressure beam 5 and take-up roll 6 are necessary, the paper transport device according to the invention has a compact design. Furthermore, manufacturing-related tolerances in the axis parallelism of these components for the transport of the paper web 10 have no influence on the function.

Abstract

1. A paper feed device for printers, in which a paper web (10) is fed from a feed roll (11) over at least one guide rod (3) and a printing bar (5) to a take-up roll (6) as a result of the rotary motion of the latter, characterised in that, in order to increase the feed path of the paper web (10), at one side edge thereof at one end region of the guide rod (3), a spacer (8) is arranged over which the paper web is led ; and that at the opposite end of the guide rod (3), a bearing edge (7) is provided against which the paper web is pressed when fed past it.

Description

Die Erfindung betrifft eine Papiertransportvorrichtung gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a paper transport device according to the preamble of patent claim 1.

Es gibt Druckereinrichtungen, die als Papiertransporteinrichtungen sogenannte Journaleinheiten besitzen. Dies sind Papiertransportvorrichtungen, die dazu dienen, Rollenpapier von einer Vorratsrolle ohne Unterbrechung zu einer Aufwickelrolle zu transportieren, d.h. das gesamte Papier wird umgewickelt. Im Druckbereich, der sich gewöhnlich zwischen der Vorratsrolle und der Aufwickelrolle befindet, ist ein Druckbalken oder ähnliches angeordnet, über den das Papier gezogen wird, und auf dem zeilenweise gedruckt wird.There are printer devices which have so-called journal units as paper transport devices. These are paper transport devices which serve to transport roll paper from a supply roll to a take-up roll without interruption, i.e. all of the paper is wrapped. In the printing area, which is usually between the supply roll and the take-up roll, a pressure bar or the like is arranged, over which the paper is drawn and on which printing is carried out line by line.

Zur Stabilisierung und Straffung des transportierten Papiers, d.h. des Papierlaufes, muß das Papier eine ausreichend große Wegstrecke zwischen mehreren Umlenkungen durchlaufen. Dadurch ist die Journaleinheit an eine bestimmte Größe gebunden. Zudem müssen die Umlenkstangen zur Umlenkung des Papierlaufes und die Vorratsrolle bzw. die Aufwickelrolle eine ausreichende Achsenparallelität besitzen. Ist diese Forderung nicht erfüllt, besteht die Gefahr, daß das Papier seitlich zur Transportrichtung abwandert. Dies führt einerseits zu einer locker gewickelten Aufwickelrolle ohne exakt ausgerichtete Kanten, und erhöht die Gefahr, daß das Papier an den Rändern einreißt. Andererseits führt dies zu einer Erhöhung des Widerstandes für die Drehbewegung der Aufwickelrolle beim Papiertransport, so daß dabei häufig die Papierbahn abreißt. Da die fertigungstechnischen Toleranzen sehr groß sind, würde die Einhaltung einer ausreichenden Achsenparallelität kostspielige Justagearbeiten mit speziellen Justierlehren erfordern.To stabilize and tighten the transported paper, ie the paper run, the paper has to travel a sufficiently large distance between several deflections. As a result, the journal unit is bound to a certain size. In addition, the deflecting rods for deflecting the paper run and the supply roll or the take-up roll must have sufficient axis parallelism. If this requirement is not met, there is a risk that the paper will migrate sideways to the direction of transport. On the one hand, this leads to a loosely wound winding roll without precisely aligned edges, and increases the risk of the paper tearing at the edges. On the other hand, this leads to an increase in the resistance to the rotational movement of the take-up roll during paper transport, so that the paper web is often torn off. Because the manufacturing tolerances are very large maintenance of sufficient axis parallelism would require expensive adjustment work with special adjustment gauges.

Es ist Aufgabe der Erfindung, in Druckereinrichtungen den Papierläuf derart zu verbessern, daß ohne zusätzliche besondere Maßnahmen, wie Justierungen, das Papier auf die Aufwickelrolle straff und an den Kanten exakt ausgerichtet aufgenommen und aufgewickelt wird.It is an object of the invention to improve the paper path in printer devices in such a way that, without additional special measures, such as adjustments, the paper on the take-up roll is taken up tightly and precisely aligned at the edges and wound up.

Diese Aufgabe wird erfindungsgemäß durch die im kennzeichnenden Teil des Patentanspruches 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Die mit der-erfindungsgemäßen Papiertransportvorrichtung erzielbaren Vorteile bestehen im wesentlichen darin, daß diese eine kompakte Größe bei einfachem konstruktivem Aufbau aufweist, und daß fertigungstechnische Toleranzen keinen Einfluß auf die Funktion haben.The advantages which can be achieved with the paper transport device according to the invention consist essentially in the fact that it has a compact size with a simple construction, and that manufacturing tolerances have no influence on the function.

Bei einer bevorzugten Ausgestaltung der erfindungsgemäßen Transportvorrichtung ist zur Vergrößerung des Transportweges ein Ring auf einer Umlenkstange vorgesehen.In a preferred embodiment of the transport device according to the invention, a ring is provided on a deflecting rod in order to enlarge the transport path.

Es ist vorteilhaft, wenn auf die Papierbahn eine Bremskraft wirkt. Hierdurch wird auch bei ruckartigem Vorschub der Papierbahn diese straff gehalten.It is advantageous if a braking force acts on the paper web. As a result, the paper web is kept taut even in the event of jerky feed.

Bei einer besonders vorteilhaften Ausführung ist zur Erzeugung der Bremskraft eine Feder vorgesehen, die gegen den Ring drückt.In a particularly advantageous embodiment, a spring is provided to generate the braking force, which presses against the ring.

Im folgenden wird die erfindungsgemäße Papiertransportvorrichtung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles erläutert. Dabei zeigen

  • Fig. 1 eine Papiertransportvorrichtung im Querschnitt und
  • Fig. 2 die Papiertransportvorrichtung in Aufsicht.
The paper transport device according to the invention is explained below using an exemplary embodiment shown in the drawing. Show
  • Fig. 1 is a paper transport device in cross section and
  • Fig. 2, the paper transport device in supervision.

Bei der Beschreibung des Ausführungsbeispiels wird von einer Druckereinrichtung ausgegangen, die ein Druckwerk 1 aufweist, das über eine elektrische Antriebseinrichtung entlang eines zu bedruckenden Aufzeichnungsträgers bewegt wird. Die dazu erforderlichen Einzelheiten sind nicht dargestellt. Der Aufzeichnungsträger, beispielsweise eine endlose Papierbahn 10, wird über die im folgenden näher beschriebene Papiertransportvorrichtung in den, dem Druckwerk 1 gegenüberliegenden Schreibzeilenbereich gebracht, und nach dem Bedrucken einer Zeile weiter transportiert.In the description of the exemplary embodiment, a printer device is assumed which has a printing unit 1, which is moved via an electrical drive device along a record carrier to be printed. The details required for this are not shown. The record carrier, for example an endless paper web 10, is brought via the paper transport device described in more detail below into the writing line area opposite the printing unit 1, and is transported further after printing on one line.

Die in Fig. 1 dargestellte Papiertransportvorrichtung besteht aus einer muldenförmigen Vertiefung 2, die sich in einem Rahmen der hier nicht näher dargestellten Druckereinrichtung befindet. Weiter besteht sie aus einer Umlenkstange 3, einer Mitnehmerrolle 4, einem Druckbalken 5, der den Druckbereich bildet, und einer Aufwickelrolle 6. Diese Teile sind, wie in Fig. 2 bei der Anordnung der Umlenkstange 3 gezeigt ist, zwischen zwei Führungsteile des Rahmens befestigt bzw. drehbar gelagert. Weiterhin sind in Fig. 1 ein Ring 8 zur Vergrößerung des Trans- 'portweges und ein Federelement 9 zur Straffung der Papierbahn 10 vorgesehen, auf die im folgenden anhand von Fig. 2 näher eingegangen wird. Als Transportweg ist hier der Weg zu verstehen, den die Papierbahn 10 zwischen Vorratsrolle 11 und Aufwickelrolle 6 zurücklegt. In Fig. 2 bildet das linke Führungsteil eine Anlagekante 7. Auf der, der Anlagekante 7 gegenüberliegenden Seite ist auf der Umlenkstange 3 der Ring 8 zur Vergrößerung des Transportweges angebracht, gegen den das Federelement 9 drückt.The paper transport device shown in Fig. 1 consists of a trough-shaped recess 2, which is located in a frame of the printer device, not shown here. It also consists of a deflecting rod 3, a driving roller 4, a pressure bar 5, which forms the pressure area, and a winding roller 6. These parts are, as shown in FIG. 2 in the arrangement of the deflecting rod 3, fastened between two guide parts of the frame or rotatably mounted. Further, 1 is a ring in Fig. 8 'port path to increase the trans and a spring element 9 for tightening of the paper web 10 to which by way of Fig. 2 will be discussed in more detail. The transport path here is the path that the paper web 10 travels between the supply roll 11 and the take-up roll 6. In Fig. 2, the left guide part forms a contact edge 7. On the side opposite the contact edge 7, the ring 8 is attached to the deflecting rod 3 to enlarge the transport path, against which the spring element 9 presses.

Im folgenden wird die Wirkungsweise der erfindungsgemäßen Papiertransportvorrichtung unter Bezugnahme auf die Fig. 1 und 2 beschrieben. Die Papierbahn 10 wird aufgrund der Drehbewegung der Aufwickelrolle 6 auf -diese aufgewickelt, und von einer, in der muldenförmigen Vertiefung 2 liegenden Vorratsrolle 11 abgewickelt. Die Antriebsrolle 6 wird von einer hier nicht dargestellten Antriebsvorrichtung bewegt. Die Papierbahn 10 läuft über die Umlenkstange 3, versetzt auch die Mitnehmerrolle 4 in eine Drehbewegung, und läuft über den Druckbalken 5 zur Aufwickelrolle 6. Die Mitnehmerrolle 4 kann hierbei zur Registrierung der Länge der transportierten Papierbahn 10 dienen. In diesem Fall ist eine hier nicht dargestellte Meßvorrichtung vorgesehen, die sicherstellt, daß beispielsweise die Papierbahn 10 zeilenweise über den Druckbalken 5 bewegt wird.The mode of operation of the paper transport device according to the invention is described below with reference to FIGS. 1 and 2. The paper web 10 is due to the Rotational movement of the take-up roll 6 wound on it, and unwound from a supply roll 11 lying in the trough-shaped depression 2. The drive roller 6 is moved by a drive device, not shown here. The paper web 10 runs over the deflecting rod 3, also sets the driving roller 4 in a rotational movement, and runs over the pressure bar 5 to the winding roller 6. The driving roller 4 can be used to register the length of the transported paper web 10. In this case, a measuring device (not shown here) is provided, which ensures that, for example, the paper web 10 is moved line by line over the pressure bar 5.

Aufgrund des durch den Ring 8 vergrößerten Transportweges wird die Papierbahn 10 beim Transport gegen die Anlagekante 7 gedrückt. Die Kraft des Federelementes 9 gegen den Ring 8 verstärkt diese Wirkung noch in Abhängigkeit von dieser Kraft. Auf diese Weise wird die Papierbahn 10 straff und mit exakt ausgerichteten Kanten auf die Aufwickelrolle 6 gewickelt. Da keine großen Abstände zwischen Vorratsrolle 11, Umlenkstange 3, Mitnehmerrolle 4 bzw. Druckbalken 5 und Aufwickelrolle 6 notwendig sind, ergibt sich eine kompakte Bauweise der erfindungsgemäßen Papiertransportvorrichtung. Weiter sind fertigungsbedingte Toleranzen bei der Achsenparallelität dieser Bauelemente für den Transport der Papierbahn 10 ohne Einfluß auf die Funktion. Aufgrund der Bremskraft, die das Federelement 9 auf die Papierbahn 10 ausübt, entsteht in dieser ein gleichmäßiger Zug, so daß ein Nachlassen der Spannung in derselben bei ruckweisem Vorschub, beispielsweise beim zeilenweisen Vorschub, verhindert wird. Die Erzeugung der Bremskraft für die Papierbahn 10 ist auch an anderer Stelle möglich. Die Bremskraft muß aber an oder vor der Stelle auf die Papierbahn 10 wirken, an der der Transportweg für dieselbe vergrößert wird.Due to the increased transport path through the ring 8, the paper web 10 is pressed against the contact edge 7 during transport. The force of the spring element 9 against the ring 8 reinforces this effect depending on this force. In this way, the paper web 10 is wound tightly and with precisely aligned edges on the take-up roll 6. Since no large distances between the supply roll 11, deflecting rod 3, driving roll 4 or pressure beam 5 and take-up roll 6 are necessary, the paper transport device according to the invention has a compact design. Furthermore, manufacturing-related tolerances in the axis parallelism of these components for the transport of the paper web 10 have no influence on the function. Due to the braking force exerted by the spring element 9 on the paper web 10, a uniform tension is created in the latter, so that a relaxation of the tension in the same is prevented with a jerky feed, for example with a line feed. The generation of the braking force for the paper web 10 is also possible elsewhere. However, the braking force must act on or before the point on the paper web 10 at which the transport path for the same is increased.

Claims (4)

1. Papiertransportvorrichtung für Druckereinrichtungen, bei der eine Papierbahn (10) von einer Vorratsrolle (11) über mindestens eine Umlenkstange (3) und einen Druckbalken (5) durch die Drehbewegung einer Aufwickelrolle (6) auf diese transportiert wird, gekennzeichnet durch einen einseitig vergrößerten Transportweg für die Papierbahn (10) und eine Anlagekante (7), an der die Papierbahn (10) vorbeitransportiert wird.1. Paper transport device for printer devices, in which a paper web (10) from a supply roll (11) via at least one deflecting rod (3) and a pressure bar (5) is transported by the rotary movement of a take-up roll (6), characterized by an enlarged on one side Transport path for the paper web (10) and a contact edge (7), past which the paper web (10) is transported. 2. Papiertransportvorrichtung nach Anspruch 1, gekennzeichnet durch einen Ring (8), der zur Vergrößerung des Transportweges für die Papierbahn -(10) auf der Umlenkstange (3) an der der Anlagekante (7) gegenüberliegenden Seite angeordnet ist.2. Paper transport device according to claim 1, characterized by a ring (8) which is arranged to enlarge the transport path for the paper web - (10) on the deflecting rod (3) on the side opposite the contact edge (7). 3. Papiertransportvorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch eine auf der Seite des größeren Transportweges angeordnete Bremskraft, die die Papierbahn (10) gestrafft hält.3. Paper transport device according to claim 1 or 2, characterized by a braking force arranged on the side of the larger transport path, which holds the paper web (10) taut. 4. Papiertransportvorrichtung nach Anspruch 3, dadurch gekennzeichnet , daß die Bremskraft ein Federelement (9) ist, das gegen den Ring (8) drückt.'4. Paper transport device according to claim 3, characterized in that the braking force is a spring element (9) which presses against the ring (8). '
EP83107918A 1982-08-13 1983-08-10 Paper feeding device for printing installations Expired EP0101071B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83107918T ATE25947T1 (en) 1982-08-13 1983-08-10 PAPER TRANSPORT DEVICE FOR PRINT EQUIPMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3230258A DE3230258C2 (en) 1982-08-13 1982-08-13 Paper transport device for line printer
DE3230258 1982-08-13

Publications (3)

Publication Number Publication Date
EP0101071A2 true EP0101071A2 (en) 1984-02-22
EP0101071A3 EP0101071A3 (en) 1985-04-10
EP0101071B1 EP0101071B1 (en) 1987-03-18

Family

ID=6170855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107918A Expired EP0101071B1 (en) 1982-08-13 1983-08-10 Paper feeding device for printing installations

Country Status (3)

Country Link
EP (1) EP0101071B1 (en)
AT (1) ATE25947T1 (en)
DE (1) DE3230258C2 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE3334264A1 (en) * 1982-09-25 1984-04-05 Showa Denko K.K., Tokyo METHOD AND MEASURING DEVICE FOR MEASURING METHANE CONCENTRATION IN A GAS MIXTURE

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DE4009293A1 (en) * 1990-03-20 1991-09-26 Siemens Ag METHOD FOR LEADING A SHEET IN A RIBBON CASSETTE AND RIBBON CASSETTE FOR CARRYING OUT THE METHOD
JPH03286880A (en) * 1990-04-02 1991-12-17 Eastman Kodak Japan Kk Color printer

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DE2542091A1 (en) * 1975-09-20 1977-03-24 Anker Werke Ag Holder and brake unit for paper roll in office machine - ensures constant paper feed at uniform tension throughput paper supply
DE3013840A1 (en) * 1980-04-10 1981-10-15 Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut Foil band winding installation - has reversing roller placed in turnable position in front of winding roller made as wobble roller

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Publication number Priority date Publication date Assignee Title
DE2261205A1 (en) * 1971-12-20 1973-07-05 Ibm CONTINUOUS BELT GUIDANCE FOR A MOVING BELT
DE2542091A1 (en) * 1975-09-20 1977-03-24 Anker Werke Ag Holder and brake unit for paper roll in office machine - ensures constant paper feed at uniform tension throughput paper supply
DE3013840A1 (en) * 1980-04-10 1981-10-15 Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut Foil band winding installation - has reversing roller placed in turnable position in front of winding roller made as wobble roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334264A1 (en) * 1982-09-25 1984-04-05 Showa Denko K.K., Tokyo METHOD AND MEASURING DEVICE FOR MEASURING METHANE CONCENTRATION IN A GAS MIXTURE

Also Published As

Publication number Publication date
EP0101071A3 (en) 1985-04-10
DE3230258A1 (en) 1984-02-16
EP0101071B1 (en) 1987-03-18
DE3230258C2 (en) 1986-09-11
ATE25947T1 (en) 1987-04-15

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