EP0008349B1 - Guidage de précision pour les électrodes d'une tête d'impression multi-électrodes dans des imprimantes à papier métallique - Google Patents

Guidage de précision pour les électrodes d'une tête d'impression multi-électrodes dans des imprimantes à papier métallique Download PDF

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Publication number
EP0008349B1
EP0008349B1 EP79102337A EP79102337A EP0008349B1 EP 0008349 B1 EP0008349 B1 EP 0008349B1 EP 79102337 A EP79102337 A EP 79102337A EP 79102337 A EP79102337 A EP 79102337A EP 0008349 B1 EP0008349 B1 EP 0008349B1
Authority
EP
European Patent Office
Prior art keywords
electrodes
guide
grooves
electrode
metal paper
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
EP79102337A
Other languages
German (de)
English (en)
Other versions
EP0008349A1 (fr
Inventor
Kurt Hartmann
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6046586&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0008349(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to AT79102337T priority Critical patent/ATE3703T1/de
Publication of EP0008349A1 publication Critical patent/EP0008349A1/fr
Application granted granted Critical
Publication of EP0008349B1 publication Critical patent/EP0008349B1/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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B41J2/39—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads
    • B41J2/395—Structure of multi-stylus heads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S269/00—Work holders
    • Y10S269/902—Work holder member with v-shaped notch or groove
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44641—Clasp, clip, support-clamp, or required component thereof having gripping member formed from, biased by, or mounted on resilient member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/71—Rod side to plate or side
    • Y10T403/7129—Laterally spaced rods
    • Y10T403/7141—Plural channels in connector

Definitions

  • the invention relates to a precision guide for the electrodes of a multi-electrode writing head for metal paper printers, consisting of a guide part with grooves running parallel to one another, the electrodes receiving grooves, from the flanks of which the electrodes are guided laterally, and a cover part placed thereon.
  • Electrode print heads for metal paper printers are known in various designs. Among other things, you have to ensure a certain mutual distance between the electrodes and - if abrasion problems of the electrodes are to be taken into account - to provide a way to guide the electrodes.
  • the electrodes seen in cross section, do not protrude beyond the grooves, that the cover part near the point where the electrodes emerge from the write head has a recess which runs transversely to the longitudinal axis of the electrode and in which an elastically deformable, non-conductive Element is arranged, the areas lying on the guide part are deformed and that protrudes into the grooves, fixing the electrodes located therein, and allows the electrodes to be tracked in the direction of their longitudinal axis.
  • the solution according to the invention has the advantage that the electrode is fixed in its position in the guide groove, even if its diameter should fluctuate due to predetermined tolerances. It rests on the groove flanks and cannot move sideways. Furthermore, it is possible, by appropriate dimensioning of the elastically deformable, non-conductive element, to ensure that the electrode lies against the groove flanks in a large longitudinal section of the groove guide. For this purpose, only the elastically deformable element needs to have a dimension in the direction of the electrode longitudinal axis which is of the order of magnitude of this longitudinal section.
  • US Pat. No. 2,718,450 describes a guide in which electrodes guided in grooves are pressed down by a rubber roller lying transversely to them. Seen in cross-section, however, the upper parts of the electrodes stand out of the grooves.
  • the rubber roller has such a frictional contact with the protruding parts of the electrodes that it can advance the electrodes in the grooves upon rotation.
  • the rear end of the electrode protrudes from the groove guide and its end near the write.
  • a spring-loaded contact ball is provided for making an electrical contact. The spring force for this ball presses the electrode against the rubber roller.
  • the electrode At its front, near-writing end, the electrode lies tangentially on a record carrier guided over a roll.
  • This roller can be pivoted against the electrode in order to generate a corresponding contact pressure.
  • the position of the electrode in the groove is determined by three points: the front edge of the electrode guide, the rubber roller and the contact ball. This does not result in the electrode resting on the groove flanks along the entire groove length.
  • the electrode In the swiveled-in state of the roller, in order to achieve a contact pressure of the electrode on the recording medium, as is required for a secure recording process, the electrode is pressed somewhat out of the front part of the groove against the rubber roller. This results in the possibility of an undesirable lateral movement of the electrode in its groove guide.
  • the precision guide 1 consists of three main parts: a guide part 2, a cover part 3 formed by a cover and a flexible element 5 running in a recess 4 of the cover part 3. Furthermore, it can be seen from Fig. 1, that the guide part 2 is provided with a number of adjacent guide grooves 6 in which the electrodes 7 run. For the sake of clarity, some of these are guides grooves shown without associated electrodes. On the writing side, the cover part 3 and the guide part 2 are each provided with a bevel (8; 9).
  • the resulting actual mouthpiece 10 of the precision guide has a design that accommodates the writing process, that is, it is slightly rounded both in the writing direction (direction of the double arrow 11) and perpendicularly to it (direction of the double arrow 12) in order to ensure perfect sliding and locking to prevent writing residue and dirt.
  • Both parts, both the cover part 3 and the guide part 2 are fixed in their outer position by appropriate stops and supports (not shown).
  • the cover part 3 can be fixed on the guide part 2 by simple locking screws. Other fixing and fastening options are conceivable.
  • This precision guide can be used in particular in a device for tracking electrodes, as described in German patent application P 2758150.6.
  • the electrodes 7 running in the grooves 6 can be tracked in the direction of the arrow 13 indicated by the dashed line if the wear is corresponding.
  • the device for tracking the electrodes is not the subject of the invention, it is therefore not described in more detail.
  • the cross section of the electrodes does not protrude over the grooves with their upper part; they basically have a lateral range of motion within the groove.
  • the element 5 designed as a flexible holding tube is provided, which runs in a recess 4 of the cover part 3.
  • This recess 4 has a prismatic shape; it is transverse to the direction of the electrodes.
  • the elastic flexible holding tube made of electrically non-conductive material is preferably made of polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • This holding tube has such a dimension that it is deformed when the precision guide is assembled at points A, B and C (see sectional view in FIG. 3) in such a way that the lower part of the holding tube (deformation area C) is open the electrode 7 running in the guide groove 6 acts and holds it in a fixed position without lateral freedom of movement (FIG. 2). This ensures that the electrodes 7 are guided in the individual grooves 6 without lateral freedom of movement.
  • the flexible holding tube which is preferably made of PTFE, has the property that it is possible to track the electrodes in the assembled state of the precision guide.
  • the reason for this is the corresponding surface properties of the holding tube (sliding friction).
  • Guide part 2 and cover part 3 must be made of a non-conductive material for understandable reasons so that the individual electrodes remain isolated from each other. Ceramic is preferably considered for such a material, but solutions are also conceivable in which electrically conductive metals are rendered non-conductive by appropriate surface treatment in the area of their surface.
  • FIG. 2 shows an enlarged partial sectional view of the precision guide according to FIG. 1 according to section line XX. The position of the individual electrodes 7 within their guide grooves 6 can be seen from this illustration. These guide grooves have a simple triangular shape. It can be seen how the element 5 designed as a holding tube is pressed slightly into these grooves and touches the electrodes 7 in the upper part and fixes them in their position within the grooves.

Landscapes

  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Handling Of Cut Paper (AREA)
  • Facsimile Heads (AREA)
  • Electronic Switches (AREA)

Claims (4)

1. Guide de précision des électrodes d'une tête d'écriture à électrodes multiples pour imprimante sur papier métallisé, comprenant une pièce de guidage (2) avec des rainures (6) parallèles pour accepter les électrodes (7) qui sont guidées latéralement par les flancs desdites rainures et d'un capot de protection (3) coiffant l'ensemble, caractérisé par le fait que les électrodes (7), vues en coupe transversale, ne dépassent pas des rainures (6), que le capot (3) possède près de l'endroit où les électrodes sortent de la tête d'écriture, un évidement (4), qui est à angle droit par rapport à l'axe longitudinal des électrodes, dans lequel est placé un élément élastique, non conducteur (5), dont les parties proches de la pièce de guidage sont déformables, et qui pénètre dans les rainures maintenant ainsi les électrodes à l'intérieur de celles-ci et permettant ainsi un déplacement des électrodes dans le sens de leur axe longitudinal.
2. Guide conforme à la revendication 1, caractérisé par le fait que l'élément déformable à la forme d'un tube (5).
3. Guide conforme à la revendication 2, caractérisé par le fait que l'élément tubulaire (5) est en PTFE.
4. Guide conforme à une des revendications 1 à . 3, caractérisé par le fait que l'évidement (4) a une section transversale en forme de prisme.
EP79102337A 1978-08-09 1979-07-09 Guidage de précision pour les électrodes d'une tête d'impression multi-électrodes dans des imprimantes à papier métallique Expired EP0008349B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79102337T ATE3703T1 (de) 1978-08-09 1979-07-09 Praezisionsfuehrung fuer elektroden eines vielfachelektrodenschreibkopfes fuer metallpapierdrucker.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2834868 1978-08-09
DE19782834868 DE2834868A1 (de) 1978-08-09 1978-08-09 Praezisionsfuehrung fuer elektroden eines vielfachelektrodenschreibkopfes von einem metallpapierdrucker

Publications (2)

Publication Number Publication Date
EP0008349A1 EP0008349A1 (fr) 1980-03-05
EP0008349B1 true EP0008349B1 (fr) 1983-06-08

Family

ID=6046586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102337A Expired EP0008349B1 (fr) 1978-08-09 1979-07-09 Guidage de précision pour les électrodes d'une tête d'impression multi-électrodes dans des imprimantes à papier métallique

Country Status (7)

Country Link
US (1) US4243332A (fr)
EP (1) EP0008349B1 (fr)
JP (1) JPS6025269B2 (fr)
AT (1) ATE3703T1 (fr)
CA (1) CA1108930A (fr)
DE (2) DE2834868A1 (fr)
IT (1) IT1162568B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651418A (en) * 1984-08-29 1987-03-24 At&T Technologies, Inc. Methods of and apparatus for assembling contact elements to connector housing
JPS6157742U (fr) * 1984-09-19 1986-04-18

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1566358A (en) * 1924-09-05 1925-12-22 Vickerys 1920 Ltd Doctor for paper machines
US3058417A (en) * 1959-05-22 1962-10-16 Nils H V Norlin Mechanism for clamping plates to the cylinders of printing machines
US3187718A (en) * 1962-05-28 1965-06-08 Black Clawson Co Flexible doctor blade coating apparatus
US3715981A (en) * 1970-06-29 1973-02-13 Hamilton Tool Co Fluid actuator and lock for printing plate cylinders
US3826484A (en) * 1972-12-07 1974-07-30 Raycon Corp Workpiece positioning and holding apparatus
US3885859A (en) * 1974-06-24 1975-05-27 Northern Electric Co Optical fibre connectors
JPS543733B2 (fr) * 1974-09-20 1979-02-26
US4046454A (en) * 1976-05-18 1977-09-06 Bell Telephone Laboratories, Incorporated Optical fiber connector
US4088312A (en) * 1977-09-27 1978-05-09 Nasa Variable contour securing system

Also Published As

Publication number Publication date
EP0008349A1 (fr) 1980-03-05
CA1108930A (fr) 1981-09-15
US4243332A (en) 1981-01-06
DE2834868A1 (de) 1980-02-21
ATE3703T1 (de) 1983-06-15
DE2965610D1 (en) 1983-07-14
JPS5525395A (en) 1980-02-23
JPS6025269B2 (ja) 1985-06-17
IT1162568B (it) 1987-04-01
IT7924957A0 (it) 1979-08-07

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