US3318429A - Wire harness structure for matrix printing apparatus - Google Patents

Wire harness structure for matrix printing apparatus Download PDF

Info

Publication number
US3318429A
US3318429A US497164A US49716465A US3318429A US 3318429 A US3318429 A US 3318429A US 497164 A US497164 A US 497164A US 49716465 A US49716465 A US 49716465A US 3318429 A US3318429 A US 3318429A
Authority
US
United States
Prior art keywords
print
harness
tubes
wires
flexible
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 - Lifetime
Application number
US497164A
Other languages
English (en)
Inventor
Robert C Burns
Hasegawa Tatsuo
Victor R Simpson
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US497386A priority Critical patent/US3322253A/en
Priority to US497164A priority patent/US3318429A/en
Priority to DE19661524422 priority patent/DE1524422B2/de
Priority to DE19661524421 priority patent/DE1524421A1/de
Priority to FR8067A priority patent/FR1497325A/fr
Priority to NL666614552A priority patent/NL148727B/xx
Priority to GB46233/66A priority patent/GB1127120A/en
Priority to CH1497866A priority patent/CH444539A/de
Priority to GB46234/66A priority patent/GB1130072A/en
Priority to CH1497966A priority patent/CH446825A/de
Priority to SE14134/66A priority patent/SE306630B/xx
Priority to SE14133/66A priority patent/SE300897B/xx
Priority to BE688411D priority patent/BE688411A/xx
Application granted granted Critical
Publication of US3318429A publication Critical patent/US3318429A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/235Print head assemblies
    • B41J2/265Guides for print wires

Definitions

  • This invention relates generally to high speed printing apparatus and more particularly to the construction of a printing mechanism for use in a serial matrix printing machine.
  • Printing machines are known in which the outlines of characters are formed by printing the appropriate dots of a bi-dimensional dot matrix having the same general size as the characters to be printed.
  • One version of such a machine sometimes called a wire printer, employs a matrix of individually operable dot printing wire elements or the like which are projected in combination simultaneously against a platen to effect printing of the whole character on an interposed print medium.
  • a matrix of individually operable dot printing wire elements or the like which are projected in combination simultaneously against a platen to effect printing of the whole character on an interposed print medium.
  • means are provided for effecting a relative longitudinal motion between the print matrix and the platen (and print medium) so that different characters are printed in series at successive positions along the print line.
  • the print head In serial machines, the print head, having the Wire matrix former therein, is moved along the print line while the print wires are actuated successively to record the characters composing the line of print.
  • the print head may be moved incrementally or continuously along the print line and then, upon completion of the line, returned to the starting point for the next line, usually at the left side of the record member.
  • a characteristic of incremental motion is that the motion is interrupted so that one of the members moves in steps along the print line. It can be appreciated that if printing with incremental motion is to be performed at high rates of speed, the moving parts must be accelerated from rest, advanced, then brought to rest rapidly in short intervals of time. In addition, it is essential that the incrementing be performed at a high repetition rate. In the instances where the print head and its support are moved continuously along the print line, the print head must be oscillated on the moving support to eliminate relative motion between the head and record member at the instant of printing. The oscillatory motion thus required must also be at a high repetition rate.
  • the printing in a serial matrix printer is controlled by a stationary mechanism which projects the Wires required at each position along the print line.
  • the print wires are contained in tubes arranged in rows and columns to form the matrix at the print head.
  • the tubes and wires are suspended as a group between the print head support and stationary control mechanism. It is apparent that when the print head is moved incrementally or oscillated continuously the tubes are subjected to severe stress so that fractures occur due to early fatigue failure.
  • a partial solution to the problem of premature failure is to lengthen the Wires and tubes to increase the radius of curvature to decrease the stress level.
  • the additional length however, soon becomes impractical because of inertia and space requirements, and does not significantly extend the operating life. This is due to high stress concentrations still remaining at the print head support and control mechanism where rigid and flexible tube sections meet.
  • Another object of this invention is to provide a flexible support for print wire tubes which prevents heretofore damaging stress concentrations.
  • a further object of this invention is to provide a sup porting harness for print wire tubes in a serial matrix printer which maintains large radii of curvatue and holds each tube free of damaging contact with another tube.
  • Yet another object of this invention is to provide a flexib-le harness for print wire tubes which holds all tubes in a common bending radius to prevent any one tube from being overstressed and to provide uniform support over a relatively large span.
  • a still further object of this invention is to provide a supporting harness for print wire tubes that is capable of damping vibration to thereby reduce tube strain.
  • the preceding and other objects are obtained in accordance with the practice of the present invention by providing a flexible harness to support the print wires and tubes as they are suspended between a print head and
  • the print wire harness comprises a ribbon of resilient, flexible material having print tubes imbedded therein and held parallel so that each of the tubes could be intersected by a single straight line anywhere along their flexing length. This arrangement permits movement in a plane normal to the plane of tube support.
  • the harness further has parallel flanges along each edge thereof, normal to the support plane of the tubes, forming a cross-section similar to an I-bearn.
  • the harness is provided with ribs between the flanges transversely of the print tubes.
  • the supporting ribbon or web of flexible material is formed with gradually increas- I ing thickness approaching the ends adjacent the print head and control mechanism to provide a gradually decreasing degree of flexibility to thereby eliminate sharp stress concentrations during bending of the print tubes.
  • the wires and tubes adjacent thereto converge in a transition portion of the harness into a plurality of short parallel rows of tubes and thus form the two dimensional matrix required.
  • the harness at the transition section is further provided with stiifening elements to limit bending stress variation and to prevent damaging relative motion between adjacent tubes.
  • the tubes extend beyond the end of the flexible ribbon to the control mechanism. There is thus formed between the print head and control mechanism a flexible harness for the print wires in which the degree of movement is limited substantially to a single plane.
  • the harness as used in the invention is readily adapted to molding techniques thus permitting inexpensive construction.
  • the construction of the harness further eliminates the necessity of any intermediate support between the print head and control mechanism.
  • the transverse ribs support the tube array, prevent collapse of the flanges, and protect the metallic tubes from damage.
  • the invention greatly extends the print tube life by having graduated longitudinal flexibility so that the tube movement is limited in a desired manner.
  • FIGURE 1 is a schematic diagram in perspective form of a serial matrix printer embodying the principles of the present invention
  • FIGURE 2 is a perspective view of the print wire harness seen in FIG. 1 shown in greater detail;
  • FIGURE 3 is a perspective View of the transition portion of the print wire harness adjacent the print head showing additional elements therein.
  • the serial matrix printer apparatus comprises generally a stationary control mechanism Iii, a flexible print wire harness 11 including a matrix print head 12, and a recording medium 13.
  • the print head is secured to a movable member such as a band 14 and is moved incrementally along a transverse supporting track (not shown) by any suitable mechanism such as electrostatic clutches 15, 16.
  • the control mechanism is actuated by appropriate input signals to simultaneously project selected print wires through the harness and from the print head to produce the character desired.
  • the wire ends move an ink'ribbon 17 against document 13 and platen 19 thus leaving an impression of a character on the document.
  • the print head movement is controlled by energizing the desired clutch or 16 to move the band 14 in the desired direction and for the distance requiredJ Stops 2G and limit switches 21 serve as auxiliary controls to ter- 'minate movement of the print head at each end of travel. 'The stops are adjustable to diiierent line lengths as may be required by the form to be printed. Primary positioning of the print head, however, is accomplished by other machine controls not shown. a
  • the print tube harness of the invention is shown in V greater detail in FIGS. 2 and 3.
  • the harness may be con-' sidered generally as having -a terminal portion 25, intermediate portion 26, transition portion 27 and the print head 12.
  • the intermediate portion may be defined as that portion in which the print tubes 28 are parallel and arranged so that each tube could be intersected. by a single straight line.
  • the print tubes 28, having wires 29 therein are arranged parallel to one another in a common plane.
  • the tubes converge from the intermediate array toward the print head and are formed into groups each having a common number equal to the. number of tubes in a vertical row in the character matrix concentrations in the print tubes and wires which heretoportion is covered with a relatively thick coating of mateat the print head.
  • the character matrix may be 'formed'by thirty-five print wires, arranged in a rectangle having five vertical, parallel rows each containing seven wires. Therefore each group of tubes in' the transition portion would have seven print tubes.
  • the tubesin each group and the five groups are rigidly secured together, as by soldering, within the print head to form the rectangular matrix designated generally as 36 at theprint head. 7 V g
  • the terminal portion 25 'of the harness is connected to a support plate 31 and arm'32that are in turn sup- 7 ported'by the stationary control mechanism 10;
  • harness tubes then fan out along plate 31 from clamp 35 to a point (not shown) where the print wires connect with the controlmechanisrn;
  • the harness to the left of clamp 34 in FIG. 2 is thus free to flex as necessary to accommodate the tr-anslatory motion of print head 12 along the print line.
  • clamp 34 secures the harness at a point where there are flanges 4i and 41; by thus gripping the flanges, a limited degree of flexibility is permitted due to flange deflection.
  • the coating on the terminal portion of the harness is' molded with a gradually decreasing web thickness of the I-beam section from the point engaging clamp 35 to the intermediate portion of the harness.
  • the gradual decrease in web thickness provides a corresponding gradual increase in the degree of harness flexibility.
  • the gradual changein coating and flexibility eliminates sharp stress rial in order to severely limit oscillatory bendingstresses ,7 l and substantially eliminate any flexure of tube groups during the transition. Tube group overlap in the transition a portion produces high stress points which are aggravated by flexure and which tend to shorten the useful life.
  • a pair of stifiening'elements 37 (FIG.
  • the stifleners may be a metal or rigid plastic material'and extend substantially the'entire distance through which the print tubes converge.
  • the head and converging tubes havelittle, if any, flexibility and, therefore, have minimum oscillatory bending stresses It will be noted that the two sets of stifleners 37, 38 can be replaced with a single pair of longer supports.
  • the intermediate portion has the maximum harness flexibility and the converging portion of the harness is rigid, there is provided a gradual transition between the two limits of flexibility by fabricating the harness web with a coating having a graduated thickness.
  • the coating thickness increases p in area 39 as shown in FIG. 3 through the point where the groups of print tubes start to converge andup to the maximum thickness near the print head.
  • This portion. of the harness is'constructed similar to that at the terminal portion where the harness coating wasalso increased gradually. It will be noted in FIG. 3 that, because armed I V manner in which the harness is deflected, the transition portion of the harness and the part having the increased thickness are formed with a permanent curvature therein in order to accommodate the long interm'ediate portion.
  • the long intermediate portion is necessitated by the length of line to be printed.
  • V The harness is freely suspended between the stationary control mechanism 10 and the print head 12. Since the head moves in a horizontal path, the intermediate portion of the harness is mounted'in a curved vertical plane and normal .to the horizontal plane of head motion. Each.
  • the tube is thus controlled to have an equal bending radius.
  • the harness must 'be given torsional stiffness between the control mechanism and head such that the vertical orientation is maintained at all times; This is accomplished by providing an upper flange 40 and lower flange 41 normal to the'plane of the harness web so that the harness has a cross-section similar to an I-beam.
  • the flanges provide additional structure to share the .compression and tensile stresses and furnish the required torsional stiffness.
  • the I-beam cross-section further promotes vibration damping by having the polyurethane alsosupported a substantial distance from the vertical neutral axis to absorb and reduce vibration.
  • the harness is preferably formed by molding a resilient, semi-flexible coating material over the print tubes in the configuration desired.
  • the tubes may be held in the arrangement required then sprayed with a liquified form of the polyurethane which then solidifies.
  • a suitable material is M-86, a product of Spencer Chemical Corporation.
  • the coating maintains the tubes and stifieners in their relative positions so that they can then be placed in a mold having the desired configuration. In the mold, castable polyurethane can be poured over the print tubes so that the flanges and ribs can be formed integrally with the web.
  • Polyurethane has the desirable characteristic of dissipating energy.
  • a harness in a generally circular configuration to induce tube and coating stresses which are beneficial in damping oscillations caused by printing.
  • the harness when installed in the printer, is thus in a state of stress of varying amplitude depending on print head position. This stressed state increases the vibration energy absorbed by the polyurethane.
  • the incasing material for the print tubes should be considered for its inherent vibration damping, resistance to oil, and ability to be cast in the shape required.
  • the product chosen for use was Adiprene L-100 a product of the E. I. du Pont de Nemours Company which is a liquid urethane rubber that can be converted into an elastic solid rubber.
  • Other materials used should be either castable polyether polyurethane or polyester polyurethane, since these possess the required characteristics for assembly and operation.
  • the hardness of these materials as indicated by a durometer is preferably within the rage of Shore A 65-95.
  • the harness is longer than the distance between the control mechanism and print head 12.
  • the additional length of the harness has the advantage of permitting larger radii of curvature at the ex tremes of head travel so that the bending stresses remain 'below the allowable limit in the tubes.
  • the additional length is limited, however, by the additional mass which must be incremented and in which vibrations must be damped.
  • a typical cross-section of the web in FIG. 2 between flanges 40 and 41 in the planar portion was .031 inch thick.
  • the over-all height of the harness was .906 inch to the outside of the flanges.
  • Each flange cross-section at point D was .188 x .026 inch; at points C and E .188 X .035 inch; and at points B and F .188 x .045 inch.
  • the web thickness gradually increased from .031 inch at point B to .440 inch at point A, and from .031 inch at point F to .165 inch at point G.
  • Points A and G are approximately nineteen inches apart.
  • the harness was constructed to accommodate a print tube matrix five tubes wide by seven tubes high so that thirty-five tubes were required with each tube having .015 inch outside diameter and .010 inch inside diameter.
  • the tubes were composed of stainless steel.
  • a print harness fabricated as described above thus enables the construction of a high speed serial print device having significantly improved life characteristics.
  • the harness has the advantage of a relatively low effective mass, and the print head end can be moved rapidly along the printing line and returned to a home position with minimized stresses.
  • the construction further provides suflicient damping of vibrations that may be encountered during high speed operation and prolongs the practical life of the flexnral print harness.
  • the harness assembly provides support for the temporary continuance of operation.
  • a tube fracture may be detected by the ac- 6 cumulation of ink which travels up the tube from the ribbon on a print wire.
  • a flexible harness for said Wires comprising:
  • a coating of resilient material incasing said elements for providing a unitary, flexible structure with said coating having gradually increasing thickness on said intermediate portion adjacent said transition and connecting portions to gradually decrease the flexibility thereof.
  • a harness for said Wires comprising: a
  • each tube could be intersected by a single straight line, and each being connectable at one end portion to said support and connectable at the opposite end portion to said mechanism;
  • a coating of resilient material incasing and binding said elements to form a unitary structure with said coating having a gradually increased thickness over said elements in said end portions relative to said portion intermediate said end portions for gradually decreased flexibility thereof.
  • a print wire harness comprising:
  • a resilient material incasing said elements in said transition portion by a first predetermined thickness and being gradually reduced therefrom to a second predetermined thickness at a selected distance from said transition portion along said parallel portion.
  • a flexible harness comprising:
  • a flexible harness for said Wires comprising:
  • a plurality of flexible, elongate elements arranged at one end in a rectangular character matrix securable at said support and diverging therefrom in a transition portion to a parallel configuration in which said elements lie substantially parallel to each other and are arranged so that each element could be intersected by a single straight line, said parallel configuration extending into a portion attachable to said mechanism; coating of into a unitary structure with said material being gradually increased in thickness from selected positions on said parallel configuration and extending oppositely therefrom over said transition and attachable portions with sufliciently to establish rigidity in said transition and attachable portions; and e meanstto secure said matrix and attachable portions to saidrespective support and mechanism.
  • a flexible harness for said wires comprising:
  • a harness for said wires comprising:
  • V 1 a coating of resilient material incasing and binding said I elements to form a unitary, flexible structure having a varying thickness over said elements in said end portions relative to said intermediate section to produce a varying degree of flexibility in said end portions;
  • a harness for said Wires comprising:
  • a harness for said wires comprising:
  • each element could be intersected by a single straight line in an intermediate section and converging at one end thereof'in a transition section to form a rectangular character matrix securable to said support and having a connecting" portion at the other end of said tion securable to said mechanism;
  • a harness for controlled flexibility comprising:; 7 a

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Impact Printers (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
US497164A 1965-10-18 1965-10-18 Wire harness structure for matrix printing apparatus Expired - Lifetime US3318429A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US497386A US3322253A (en) 1965-10-18 1965-10-18 Vibration control apparatus for a matrix printer
US497164A US3318429A (en) 1965-10-18 1965-10-18 Wire harness structure for matrix printing apparatus
DE19661524422 DE1524422B2 (de) 1965-10-18 1966-10-08 Lagerkoerper fuer die verbindungs- bzw. druckdraehte eines drahtmatrixdruckers
DE19661524421 DE1524421A1 (de) 1965-10-18 1966-10-08 Vorrichtung zur Daempfung von Schwingungsbewegungen
FR8067A FR1497325A (fr) 1965-10-18 1966-10-11 Imprimante à fil
GB46233/66A GB1127120A (en) 1965-10-18 1966-10-17 Vibration reducing apparatus for curved resilient member
NL666614552A NL148727B (nl) 1965-10-18 1966-10-17 Draaddrukinrichting bevattende een langs een afdrukrol beweegbare drukkop.
CH1497866A CH444539A (de) 1965-10-18 1966-10-17 Lagerkörper für die Verbindungsdrähte zwischen Druckkopf und Steuereinheit in einem Drahtmatrixdrucker
GB46234/66A GB1130072A (en) 1965-10-18 1966-10-17 A flexible print wire tube harness
CH1497966A CH446825A (de) 1965-10-18 1966-10-17 Vorrichtung zur Dämpfung von Schwingungsbewegungen einer flexiblen, kabelartigen Führung
SE14134/66A SE306630B (de) 1965-10-18 1966-10-18
SE14133/66A SE300897B (de) 1965-10-18 1966-10-18
BE688411D BE688411A (de) 1965-10-18 1966-10-18

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US497164A US3318429A (en) 1965-10-18 1965-10-18 Wire harness structure for matrix printing apparatus
US497386A US3322253A (en) 1965-10-18 1965-10-18 Vibration control apparatus for a matrix printer

Publications (1)

Publication Number Publication Date
US3318429A true US3318429A (en) 1967-05-09

Family

ID=27052408

Family Applications (2)

Application Number Title Priority Date Filing Date
US497164A Expired - Lifetime US3318429A (en) 1965-10-18 1965-10-18 Wire harness structure for matrix printing apparatus
US497386A Expired - Lifetime US3322253A (en) 1965-10-18 1965-10-18 Vibration control apparatus for a matrix printer

Family Applications After (1)

Application Number Title Priority Date Filing Date
US497386A Expired - Lifetime US3322253A (en) 1965-10-18 1965-10-18 Vibration control apparatus for a matrix printer

Country Status (8)

Country Link
US (2) US3318429A (de)
BE (1) BE688411A (de)
CH (2) CH446825A (de)
DE (2) DE1524422B2 (de)
FR (1) FR1497325A (de)
GB (2) GB1130072A (de)
NL (1) NL148727B (de)
SE (2) SE300897B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592311A (en) * 1968-10-02 1971-07-13 Ibm Wire printing head
US3742846A (en) * 1972-03-31 1973-07-03 Ibm Wire printer with print head moved in figure eight pattern
US3924528A (en) * 1972-10-06 1975-12-09 Bauer Messinstrumente Ag Printer
USRE32053E (en) * 1976-04-01 1985-12-24 Articulated ribbon-guiding structure
US4632583A (en) * 1984-10-01 1986-12-30 International Business Machines Corporation Flexible leader
US5560721A (en) * 1993-12-24 1996-10-01 Brother Kogyo Kabushiki Kaisha Shuttle printer with shifting wire guides
US10377327B1 (en) * 2018-02-20 2019-08-13 Yazaki Corporation Curvature regulating member and power supply device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685629A (en) * 1970-09-21 1972-08-22 Scope Inc Print head carriage mechanism for impactless printer
BE790981A (fr) * 1971-11-04 1973-05-07 Centronics Data Computer Tete imprimeuse a guidage elastique
US3867882A (en) * 1973-04-19 1975-02-25 Houston Eng Res Apparatus for printing labels directly onto packages, containers and the like
JPS5362534A (en) * 1976-11-16 1978-06-05 Canon Inc Printer
DE8019863U1 (de) * 1980-07-24 1980-10-23 Kienzle Apparate Gmbh, 7730 Villingen- Schwenningen Anordnung zur Stromzuführung zu einem beweglichen Druckkopf

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2129065A (en) * 1937-07-06 1938-09-06 Joseph N Loop Apparatus for printing characters
US2653534A (en) * 1948-06-26 1953-09-29 Burroughs Adding Machine Co Wire character forming printing machine
US2681614A (en) * 1949-09-27 1954-06-22 Burroughs Corp Recording machine with grouped recording elements operable selectively to form data-representations
US2720164A (en) * 1952-01-26 1955-10-11 Remington Rand Inc Dot printing interpreter
US2911085A (en) * 1957-07-01 1959-11-03 Burroughs Corp Wire printer with oscillatory print head
US3236351A (en) * 1961-12-05 1966-02-22 Ibm High speed matrix printer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2785627A (en) * 1953-10-07 1957-03-19 Ibm Wire printer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2129065A (en) * 1937-07-06 1938-09-06 Joseph N Loop Apparatus for printing characters
US2653534A (en) * 1948-06-26 1953-09-29 Burroughs Adding Machine Co Wire character forming printing machine
US2681614A (en) * 1949-09-27 1954-06-22 Burroughs Corp Recording machine with grouped recording elements operable selectively to form data-representations
US2720164A (en) * 1952-01-26 1955-10-11 Remington Rand Inc Dot printing interpreter
US2911085A (en) * 1957-07-01 1959-11-03 Burroughs Corp Wire printer with oscillatory print head
US3236351A (en) * 1961-12-05 1966-02-22 Ibm High speed matrix printer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592311A (en) * 1968-10-02 1971-07-13 Ibm Wire printing head
US3742846A (en) * 1972-03-31 1973-07-03 Ibm Wire printer with print head moved in figure eight pattern
US3924528A (en) * 1972-10-06 1975-12-09 Bauer Messinstrumente Ag Printer
USRE32053E (en) * 1976-04-01 1985-12-24 Articulated ribbon-guiding structure
US4632583A (en) * 1984-10-01 1986-12-30 International Business Machines Corporation Flexible leader
US5560721A (en) * 1993-12-24 1996-10-01 Brother Kogyo Kabushiki Kaisha Shuttle printer with shifting wire guides
US10377327B1 (en) * 2018-02-20 2019-08-13 Yazaki Corporation Curvature regulating member and power supply device

Also Published As

Publication number Publication date
SE300897B (de) 1968-05-13
GB1127120A (en) 1968-09-11
FR1497325A (fr) 1967-10-06
NL148727B (nl) 1976-02-16
GB1130072A (en) 1968-10-09
DE1524421A1 (de) 1970-08-20
CH446825A (de) 1967-11-15
DE1524422B2 (de) 1972-05-04
DE1524422A1 (de) 1970-08-13
CH444539A (de) 1967-09-30
SE306630B (de) 1968-12-02
US3322253A (en) 1967-05-30
NL6614552A (de) 1967-04-19
BE688411A (de) 1967-03-31

Similar Documents

Publication Publication Date Title
US3318429A (en) Wire harness structure for matrix printing apparatus
US3950760A (en) Device for writing with liquid ink
US3851196A (en) Plural axis linear motor structure
US3333667A (en) Flexible wire guide cable
US4349828A (en) Method and apparatus for oscillating an array of marking elements
EP0230135B1 (de) Vieldüsentintenstrahldrucker
US3605613A (en) Reinforced type carrier belt for impact printing apparatus
KR920000390B1 (ko) 와이어-돗트 충격식 프린터의 인쇄헤드
KR860000384B1 (ko) 프린터장치의 두께보다 더 좁은 거리에서 도트를 인쇄할 수 있는 충격 프린터 헤드
US3735698A (en) Print hammer for a printing machine
US3766852A (en) Rebound motion controlling apparatus
US4127334A (en) Dot printer
US4091909A (en) Wire matrix printer printhead assembly
US4599007A (en) Reciprocating drive mechanism
US4365902A (en) Wire matrix print head
US3513773A (en) Printing module for high speed printers
US6109174A (en) Doctor blade for a screen printing machine
EP0028159A1 (de) Düsenplattenzusammensetzung für Tintenstrahl-Druckvorrichtung und Verfahren zur Herstellung einer solchen Zusammensetzung
US4867583A (en) Dot matrix printer/module using print wires having different lenth but equal mass
US3760719A (en) Type-holder element for {37 on-the-fly{38 {11 printing machine
GB2113612A (en) A type carrier for use in impact printing machines
US3741110A (en) High speed on the fly printer providing arresting of the type characters in the printing positions
US4828409A (en) Print head
JPS5945165A (ja) インパクト印字ヘツド
US4134336A (en) Half-herringbone support for restricting sideways vibration of comb hammers