EP0064668B1 - Pivot pour mécanisme d'impression - Google Patents

Pivot pour mécanisme d'impression Download PDF

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Publication number
EP0064668B1
EP0064668B1 EP82103592A EP82103592A EP0064668B1 EP 0064668 B1 EP0064668 B1 EP 0064668B1 EP 82103592 A EP82103592 A EP 82103592A EP 82103592 A EP82103592 A EP 82103592A EP 0064668 B1 EP0064668 B1 EP 0064668B1
Authority
EP
European Patent Office
Prior art keywords
printing
link
printing mechanism
planes
slew
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.)
Expired
Application number
EP82103592A
Other languages
German (de)
English (en)
Other versions
EP0064668A3 (en
EP0064668A2 (fr
Inventor
Peter Vogelhuber
Hans Joachim Wysk
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.)
Digital Kienzle Computersysteme GmbH and Co KG
Original Assignee
Mannesmann Kienzle GmbH
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 Mannesmann Kienzle GmbH filed Critical Mannesmann Kienzle GmbH
Priority to AT82103592T priority Critical patent/ATE21859T1/de
Publication of EP0064668A2 publication Critical patent/EP0064668A2/fr
Publication of EP0064668A3 publication Critical patent/EP0064668A3/de
Application granted granted Critical
Publication of EP0064668B1 publication Critical patent/EP0064668B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/62—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on two or more separate sheets or strips of printing material being conveyed simultaneously to or through the printing zone

Definitions

  • the invention relates to a device for a printing unit pivotally mounted in a printer frame, which is displaceable parallel to a plurality of printing documents and can be pivoted to the printing positions by means of a pivoting motor and a pivoting gear, which is further arranged on a carriage, the carriage with the printing unit is movable on a guide between side parts arranged at a distance of the printing web width, and the slide, printing unit, side parts and guide can be pivoted together.
  • the printing unit with its printing point - the printing point is defined as the attachment point of the middle printing needle at a printing needle column in a mosaic printer - moves in a circular path from one printing position to the other relative to two different printing documents.
  • This type of movement of the print head from one print position to the other print position has the consequence that the overall arrangement requires a relatively large overall height, which is of little advantage for use in a printing device, for example to be arranged on a table, since then the printer would become so high that the operator could no longer see the upper printing position.
  • the printhead moves during its swiveling movement on a circular path (a very flat path) into the printing position, so that due to various paper guide parts which are arranged near the printing position on the printing base, the printhead can only be pivoted in certain longitudinal positions, so that the print head is not hindered by the mentioned paper guide parts.
  • the invention has for its object to provide a pivoting device for a printing unit with a relatively low overall height, which allows printing on several printing documents, so that a table workstation printer can be created, in which the operator can still follow the printing process on the upper printing pad.
  • the swivel device in such a way that a partial swiveling is also possible by stopping the swivel device after a certain smaller or larger angle.
  • the pivoting of the printing unit should be able to take place in any lateral position thereof.
  • a swivel gear is provided with a coupling curve groove fixed to the printer frame, in which a coupling is guided with its ends, with which the side parts or the guide are connected, and with an element of a swivel motor acting on the coupling and that printing points in the end positions of the printing unit intersecting printing point planes each intersect the coupling between their ends, the printing point planes each running perpendicular to the printing planes on the printing documents.
  • the swiveling device has the advantage that the printing unit moves on a very steep path into the printing position when pivoting, which has the advantage of a significantly smaller space requirement than the circular path.
  • one branch of the coupling curve groove is vertical, the other branch is horizontal and the printing planes run parallel to the connecting line between the end points of the coupling.
  • This arrangement has the advantage that a section is selected from the movement path of the swivel device, which causes the printing unit to move almost vertically into the printing position, in particular at the end of the swivel movement. Adverse component collisions with paper guides etc. are therefore avoided; the pivoting movement can be effected in any lateral position of the printing unit.
  • a swivel motor with a drive spindle is used as the drive element, which acts on the coupling via a nut connected to the coupling.
  • paddock has roles at its end points is provided, which are guided in the two branches of the coupling curve groove.
  • end position of the rollers in the branches of the coupling cam groove is limited by spring-loaded stop levers such that the springs are tensioned when the end position is reached.
  • a stepper motor is used as the swivel motor for the swivel device, digitized partial positioning of the swiveling printing unit is possible, with the result that the printing unit does not have to be swiveled to its other end position each time, but can only swivel it so far, for example that the view of the print image is released. Also, with such a partial positioning of the printing unit, a special retraction of the printing unit for the purpose of connecting the recording medium in rows is no longer necessary, which results in a simplification of the printing unit (printhead and carriage).
  • Another advantage of partial positioning is that the printing unit can only be pivoted, for example, by the width of a single printing needle. In this case, it is possible to print over the same line several times and print out the same data to produce a print that corresponds to the correspondence, because then the second print fills the gaps (rounding of the print needles) of the first print.
  • FIG. 1 can be seen in front of a printing pad 1, a printing unit 2, which consists of a carriage 3 and the actual print head 4, the mouthpiece 5 of which is located directly in front of the printing pad 1 via an ink ribbon 6 and inscribes a paper on the printing pad 1 with its printing needles, not shown.
  • the level in which the printing needles act on the base 1 is the first printing level 0 1 (FIG. 4).
  • the ink ribbon 6 is removed from a cassette 7, which consists of two parts 7a and 7b, which is arranged on a guide 8 to the right and left of the printing position 9.
  • the ink ribbon 6 is stored in part 7a of the cassette, is conveyed by drive means in part 7b and is guided in front of the printing position 9.
  • the printing unit 2 is mounted on a guide 10 which is held between two side parts 11 and 12.
  • a motor 13 is arranged on the right side part 11 and drives the printing unit 2 on the guide 10 via a pulley 14, a belt 15 and a further not shown pulley, so that it is displaced in the line direction to the pressure on the printing pad 1 to effect.
  • the second printing pad 16 (see FIG. 3) is arranged at an angle of approximately 90 ° to the first printing pad 1, in which case the printing unit 2 prints the pad from top to bottom.
  • the plane in which the print head 4 interacts with the second printing pad defines a second printing plane O 2 , perpendicular to this one can define two planes P 1 and P 2 in which the printing dots A 1 ' A 2 lie, ie the point in which the middle pressure needle the printing planes D 1 . D 2 touches.
  • the side parts 11, 12, the guide 10 and the printing unit 2 are pivoted by the pivoting device to be described below so that the print head 4 prints either on the printing pad 1 or on the printing pad 16.
  • the pivoting device for the printing unit 2 With the guide 10, and thus also with the side parts 11 and 12 is a coupling 17, which on the left side consists of the two parts 18 and 19, which are connected to each other.
  • the coupling 17 On the right side, the coupling 17 consists only of the part 19 with the rollers 20 and 21 attached to it, as can also be seen from FIGS. 2 and 3 results.
  • the two rollers 20 and 21 are rotatably attached to two corners of the square part 19 and are guided in two branches 22 and 23 of a coupling cam groove 24.
  • the rollers 20, 21 form the end points of the coupling 17.
  • the two branches 22 and 23 are grooves in a guide plate 25 fixedly attached to a printer frame 26.
  • the end positions of the two rollers 20 and 21 are limited by stop levers 27 and 28, which are under the action of springs 29 and 30. If the roller 21 in the position shown in FIG. 2 is the end position shown, the spring 30 is somewhat tensioned. As a result, the spring 30 supports this movement in the sense of an additional acceleration at the beginning of the movement of the coupling 17, so that the movement process can start up quickly. On the other hand, the spring 30 dampens the pivotal movement at the end thereof. The situation is similar with the stop lever 27. When the coupling 17 is in its other end position, see FIG. 3, then the roller 20 presses the stop lever 27 outwards, so that the spring 29 is slightly tensioned. Here, too, the spring 29 acts to accelerate the start-up of the pivoting device when another position is to be assumed and to dampen it. At the same time, the stop levers 27, 28 still relieve the weight.
  • a bracket part 31 is fastened to the coupling 17, in which a nut 32 is rotatably mounted.
  • a drive spindle 33 is guided through the nut 32 and is driven by a gearwheel 34 from the axis 35 of a swivel motor 36.
  • microswitches 38 and 39 are still attached, which cooperate with two switching levers 40 and 41.
  • the shift levers 40 and 41 are controlled by staggered bolts 42 on the parts 18 and 19 so that one microswitch in one end position of the coupling 17 and the other microswitch in the other end position of the coupling 17 is closed to the end positions of the transmission to report to the electronics.
  • the swivel motor 36 When pivoting, the swivel motor 36 is switched on. It drives the drive spindle 33 via the gearwheel 34, the nut 32 moves on the spindle 33 and thereby also the coupling 17 in FIG. 3 pivoted counterclockwise. The rollers 21 and 20 move in the coupling cam groove 24 from the position shown in FIG. 3 in the position shown in FIG. 2. In this sale, the printing unit 2 interacts with the printing pad 16. If, on the other hand, the swivel motor 36 is driven in the other direction, the coupling 17 with the two rollers 20 and 21 moves in the coupling curve groove 24 from the position according to FIG. 2 back to the position shown in FIG. 3. In this position, the printing unit 2 acts on the printing pad 1.
  • FIG. 4 shows a schematic representation in which the two pressure planes 0 1 , 0 2 , the two positions of the coupling 27 in the coupling curve groove 24 and the planes P 1 ' P 2 , which are perpendicular to the printing planes in the pressure points A 1' A 2 , recognizes.
  • the pressure point planes P "P 2 intersect the coupler vertically, but this is not necessary if, for example, the two branches 22, 23 of the coupling curve groove 24 have a different angular position to the pressure planes.
  • FIG Path B 1 on which the print head 4 moves between the printing substrates 1 and 16 or printing planes 0 1 and D 2. Compared to a circular path, the print head 4 is pulled back relatively quickly at the beginning of the pivoting movement and dips back into it at the end just as steeply the other print position.
  • FIG. 5 shows in a schematic representation that the two-part transmission consisting of coupling and coupling curve can also be designed differently.
  • a gearwheel 43 is the coupling which interacts with a fixed guide part (corresponding to the printer frame 26) 44 and an internal toothing 45 fastened thereon.
  • the diameter of the internal toothing 45 is twice as large as the diameter of the gear 43.
  • the drive spindle 33 and the swivel motor 36 then engage the gear 43 by means of a suitable connecting element in order to generate the rotary movement. If the gear 43 rotates clockwise, then it rolls on the internal toothing 45 until it has reached the dashed position after half a revolution.
  • the respective position of the print planes D 1 , D 2 and the print head 4 can also be seen.
  • the end points of the coupling 17 are the engagement points of the gear 43 with the internal toothing 45 in the two end positions, which are shown with a connecting line K. It can be seen that the print head 4 also travels a very steep path B 2 when pivoting between the pressure points A and A 2

Landscapes

  • Common Mechanisms (AREA)
  • Screen Printers (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Ink Jet (AREA)
  • Rotary Presses (AREA)

Claims (7)

1°) Dispositif pour un appareil d'impression (2) monté pivotant dans un bâti (26) d'imprimante et déplaçable parallèlement à plusieurs supports d'impression (1 ou 16), appareil d'impression qui peut pivoter vers ceux-ci dans les positions d'impression au moyen d'un moteur oscillant et d'un mécanisme de pivotement et qui, en outre, est monté sur un chariot (3), le chariot (3) avec l'appareil d'impression (2) pouvant se déplacer sur un guide (10) entre des éléments latéraux (11, 12) disposés à distance de la largeur de la voie d'impression, et le chariot (3), l'appareil d'impression (2), les éléments latéraux (11, 12) et le guide (10) pouvant être soumis conjointement à un pivotement, dispositif caractérisé en ce qu il est prévu un mécanisme de pivotement pourvu d'une gorge coudée de couplage (24), fixe sur le bâti (26) de l'imprimante, dans laquelle est guidé, par ses extrémités (20 et 21), un dispositif d'accouplement (17) auquel sont reliés les éléments latéraux (11, 12) comme aussi bien le guide (10), mécanisme de pivotement pourvu également d'un élément (33), agissant sur le dispositif d accouplement (17) d'un moteur oscillant (36) et en ce que les plans (P, et P2) des points d'impression coupant les points d'impression (A, et A2) dans les positions terminales de l'appareil d'impression (2) coupent le dispositif d'accouplement (17), dans les positions terminales respectives, chaque fois entre ses extrémités (20 et 21), les plans (P, et P2) des points d'impression s'étendant, sur les supports (1 ou 16) recevant l'impression, chaque fois perpendiculairement aux plans d'impression (Di et D2).
2°) Dispositif pour un appareil d'impression (2) monté pivotant dans un bâti (26) d'imprimante et déplaçable parallèlement à plusieurs supports d'impression (1 ou 16), appareil d'impression qui peut pivoter vers ceux-ci dans les positions d'impression au moyen d'un moteur oscillant et d'un mécanisme de pivotement et qui, en outre, est monté sur un chariot (3), le chariot (3) avec l'appareil d impression (2) pouvant se déplacer sur un guide (10) entre des éléments latéraux (11, 12) disposés a distance de la largeur de la voie d'impression, et le chariot (3), l'appareil d'impression (2), les éléments latéraux (11, 12) et le guide (10) pouvant être soumis conjointement à un pivotement, dispositif caractérisé en ce qu'il est prévu un mécanisme de pivotement comportant une roue dentée (43) reliée aux éléments latéraux (11, 12), actionnée par un élément d'entraînement, et qui, lors de son mouvement d'entraînement, effectue une rotation en roulant sur une denture intérieure fixe (45) d'un élément de guidage (44), les diamètres de la roue dentée et de la denture intérieure étant dans un rapport de 1 à 2, de telle manière, que la roue dentée (43) forme un dispositif d'accouplement s'étendant entre les deux points de prise avec la denture intérieure dans l'une et l'autre position d impression, les plans (P" P2) coupant les points d'impression (A,, A2) dans leurs positions terminales et qui s'étendent, sur les supports recevant l'impression chaque fois perpendiculairement aux plans d'impression, coupent le dispositif d'accouplement (17) dans les positions terminales respectives chaque fois entre ses points d'extrémités, c'est-à-dire les points de prise de la roue dentée (43) avec la denture intérieure (45) dans les deux positions terminales.
3°) Dispositif selon la revendication 1, caractérisé en ce que dans le cas de deux supports d'impression (1 et 16) disposés en faisant un angle de 90° environ, l'une des branches (22) de la gorge coudée de couplage (24) se trouve disposée verticalement, l'autre branche (23) horizontalement, et en ce que les plans d'impression (D1, D2) s'étendent chaque fois parallèlement à la ligne de liaison entre les points d'extrémites (20, 21) du dispositif d'accouplement (17).
4°) Dispositif selon la revendication 1 ou 2, cractérisé en ce que, comme élément d'entraînement, est utilisé un moteur oscillant (36) muni d'une broche d entraînement (33) qui, par l'intermédiaire d'un écrou (32) relié au dispositif d'accoupiement (17), agit sur celui-ci.
5°) Dispositif selon la revendication 1, 3 ou 4, caractérisé en ce que le dispositif d'accouplement (17) est muni, à ses points d'extrémités, de galets (20, 21) qui sont guidés dans les deux branches (22, 23) de la gorge coudée de couplage (24).
6°) Dispositif selon la revendication 5, caractérisé en ce que la position terminale des galets (20, 21), dans les branches (22, 23) de la gorge coudée de couplage (24), est limitée par des leviers de butées (27, 28) chargés par ressorts de telle manière, que les ressorts (29, 30) sont tendus lorsque la position terminale est atteinte.
7") Dispositif selon les revendications 1 à 3, caractérisé en ce que le moteur oscillant (36) est un moteur pas à pas, qui permet un positionnement intermediaire numérisé de l'appareil d'impression pivotant (2).
EP82103592A 1981-05-08 1982-04-28 Pivot pour mécanisme d'impression Expired EP0064668B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82103592T ATE21859T1 (de) 1981-05-08 1982-04-28 Schwenkvorrichtung fuer ein druckwerk.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813118205 DE3118205A1 (de) 1981-05-08 1981-05-08 Schwenkvorrichtung fuer ein druckwerk
DE3118205 1981-05-08

Publications (3)

Publication Number Publication Date
EP0064668A2 EP0064668A2 (fr) 1982-11-17
EP0064668A3 EP0064668A3 (en) 1984-02-08
EP0064668B1 true EP0064668B1 (fr) 1986-09-03

Family

ID=6131753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103592A Expired EP0064668B1 (fr) 1981-05-08 1982-04-28 Pivot pour mécanisme d'impression

Country Status (4)

Country Link
US (1) US4401025A (fr)
EP (1) EP0064668B1 (fr)
AT (1) ATE21859T1 (fr)
DE (2) DE3118205A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208111C2 (de) * 1982-03-06 1984-05-30 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Druckeinrichtung in modularer Bauweise
US5980136A (en) * 1998-04-23 1999-11-09 Xerox Corporation Drum platen type printing machine for printing on regular and card-stock substrates
KR101061649B1 (ko) * 2003-09-29 2011-09-01 마이크로 모우션, 인코포레이티드 코리올리 유량계용 진단 장치 및 방법
US7357480B2 (en) * 2004-09-29 2008-04-15 Pitney Bowes Inc. System for independent translational motion on two axes using one motor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE518714C (de) * 1931-02-19 Karl Schmitz Kreuzkurbelschleifengetriebe
FR1469180A (fr) * 1965-12-30 1967-02-10 Moteur permettant la transmission d'un mouvement par train hypocycloïdal
FR1519699A (fr) * 1967-02-06 1968-04-05 Transformation:mouvements rectilignes en mouvements rotatifs, mouvements rotatifs enmouvements rectilignes
DE2331628A1 (de) * 1973-06-22 1975-01-09 Philips Patentverwaltung Schrittschalteinrichtung fuer den aufzeichnungstraeger bei mosaikdruckwerken
US3882985A (en) * 1973-07-23 1975-05-13 Ncr Co Tiltable matrix print head to permit viewing of the characters
US4141660A (en) * 1975-03-19 1979-02-27 Kienzle Apparate Gmbh Printer for data-processing machine having single operator station
US4086997A (en) * 1977-03-07 1978-05-02 Wang Laboratories, Inc. Adjustable support for print head assembly
DE2752061C3 (de) * 1977-11-22 1981-02-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Einrichtung zur Einstellung des Abstandes eines Druckkopfes senkrecht zum Druckwiderlager
DE2823153C2 (de) * 1978-05-26 1982-08-19 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Druckeinrichtung mit einem beweglichen Druckkopf
DE2847577A1 (de) * 1978-11-02 1980-05-08 Olympia Werke Ag Tintenschreib-, druck-, kopierwerk mit andruckrollen auf drehbar gelagerter antriebswelle

Also Published As

Publication number Publication date
EP0064668A3 (en) 1984-02-08
ATE21859T1 (de) 1986-09-15
US4401025A (en) 1983-08-30
DE3272980D1 (en) 1986-10-09
EP0064668A2 (fr) 1982-11-17
DE3118205A1 (de) 1982-11-25

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