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US3795185A - Compact flying printer - Google Patents

Compact flying printer Download PDF

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Publication number
US3795185A
US3795185A US00118427A US3795185DA US3795185A US 3795185 A US3795185 A US 3795185A US 00118427 A US00118427 A US 00118427A US 3795185D A US3795185D A US 3795185DA US 3795185 A US3795185 A US 3795185A
Authority
US
United States
Prior art keywords
trigger lever
hammer
lever
guide means
path
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
US00118427A
Inventor
T Shimodaira
Y Gomi
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.)
Suwa Seikosha KK
Epson Corp
Original Assignee
Suwa Seikosha KK
Epson 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 Suwa Seikosha KK, Epson Corp filed Critical Suwa Seikosha KK
Application granted granted Critical
Publication of US3795185A publication Critical patent/US3795185A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
    • B41J1/34—Carriers rotating during impression
    • 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
    • B41J15/06—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles characterised by being applied to printers having stationary carriages
    • 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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/76—Line-spacing mechanisms
    • B41J19/78—Positive-feed mechanisms
    • B41J19/92—Electromagnetically-operated mechanisms
    • 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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/10—Hammers; Arrangements thereof of more than one hammer, e.g. one for each character position
    • 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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/28—Cams
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C11/00—Output mechanisms
    • G06C11/04—Output mechanisms with printing mechanisms, e.g. for character-at-a-time or line-at-a-time printing

Definitions

  • a compact flying printer having a continuously rotating print drum and ratchet wheel, a trigger lever positionable, to be struck by a tooth of said ratchet wheel and a hammer lever driven by said trigger lever and provided with a print hammer at itsend.
  • the trigger lever is formed with a linear guide portion for regulating the motion thereof and an energy transmitting portion projected for transmitting energy from said ratchet wheel to said hammer lever.
  • FIG 22 PAIENTEDHAR W 3.795.185

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Impact Printers (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

A compact flying printer having a continuously rotating print drum and ratchet wheel, a trigger lever positionable to be struck by a tooth of said ratchet wheel and a hammer lever driven by said trigger lever and provided with a print hammer at its end. The trigger lever is formed with a linear guide portion for regulating the motion thereof and an energy transmitting portion projected for transmitting energy from said ratchet wheel to said hammer lever.

Description

Shimodaira et a1;
[ COMPACT FLYING PRINTER Yoshifumi' Gomi, Chino, both of Japan I 1 [73] Assignee: Kabushiki Kaisha Suwa Seikosh and Shinshu Seiki Kabushiki, Tokyo, Japan [22] Filed: Feb. 24, 1971 [21] App1.No.: 118,427
[30] Foreign Application Priority Data Feb. 27,1970 r-Japan 45-16451 521 r1.s.c|..... .QQ .Q. 101/93 c [51] Int. Cl B41j 5/22 [58] Field of Search.. 101/93 C, 93 R, 93 MM, 110, 101/95, 96
[56] References Cited UNITED STATES PATENTS 2,766,686 10/1956 Formenko et a1 101/93 C 2,897,752 8/1959 Malmros et all.... 101/93 C 1 2,949,846 8/1960 Hoffman et a1. 101/93 C -7/1964 Kittler 101/93 C Inventors: Tadayaoshi Shiinodaira, Suwa;
[11 1' 3,795,185 45] Mar;'5,l974
Barnes 101/93 C Primary Examiner-Robert E. Bagwill Assistant ExaminerE. M. Coven Attorney, Agent, or Firm-Blum, Moscovitz, Friedman & Kaplan [57]- ABSTRACT A compact flying printer having a continuously rotating print drum and ratchet wheel, a trigger lever positionable, to be struck by a tooth of said ratchet wheel and a hammer lever driven by said trigger lever and provided with a print hammer at itsend. The trigger lever is formed with a linear guide portion for regulating the motion thereof and an energy transmitting portion projected for transmitting energy from said ratchet wheel to said hammer lever.
6 Claims, 28 Drawing Figures PAIENTED 5 sum 020F19 FIG? PATENTEU MR 5 sum 03 or 19 PATENTED 3 795,185
sum nuur19 FIG PAIENTED 3.795.185
sum USUF19 PAIENTEDNAR 5M4 3.795.185
sum '05 or 19 PAIENIEUHKR 51914 SHEET '07 HF 19 FIG; 2
PAIENTED 5'974 3.795.185
sum '080F19 PAIENTEUMAR 519M sum '09 0F 19 PATENTED W 51974 sum 10 or 19 FIG PATENIEDMAR 51974 SHEET T11UF 19 FIG/3a PATENTEU 51974 3.795.185
sum '12UF19 FIG. /4
' PATENTEDHAR 519M 3.795.185
SHEET '15 [1F 19 FIG /8 PATENTED 51974 3.795.185
sum '1BUF19 FIG. /9
FIG. 20
PATENTED 5 I974 SHEET 17 [1F 19 FIG. 2!
FIG 22 PAIENTEDHAR W 3.795.185
SHEET 18 W 19 PATENIEDIMR sum '19 0F 19 FIG. 25
FIG. 26

Claims (6)

1. A compact flying printer comprising a continuously rotating print drum; a ratchet wheel having at least one projecting tooth and continuously rotating in synchronization with said print drum; a trigger lever; guide means for guiding the displacement of said trigger lever along a path having rotational and linear componets; a hammer lever; a print hammer carried by said hammer lever for striking engagement against said print drum; means for biasing said trigger lever to a rest position on said path out of the locus of said ratchet wheel tooth and engaging said guide means, said trigger lever being formed with a body portion terminating in a tail portion at one end thereof, a neck portion projecting from said body portion at a position spaced from said tail portion, and an energy transmitting portion on the projecting end of said neck portion, said guide means engaging said trigger lever tail portion to guide the pivotable displacement of said trigger lever about the point of engagement of said tail portion and guide means and to guide the essentially linear displacement of said trigger lever relative to said guide means; means for rotationally displacing said trigger lever along said path in response to the selective application of a print signal to position said energy transmitting portion of said trigger lever in the locus of said ratchet wheel tooth, said guide means including a portion in said path for stopping said rotational displacement, said trigger lever being linearly displaced along said path by the striking of the energy transmitting portion thereof by said ratchet wheel tooth, and means mounting said hammer lever for pivotable displacement in response to being struck by said trigger lever between a first position in the linear path of said energy transmitting portion and a second position at which said print hammer is driven against said print drum, the neck portion of said trigger lever being formed with a striking face means, said guide means including a further portion positioned in said linear path of said trigger lever for engagement by said striking face means before said print hammer strikes said print drum, said striking face means on said neck portion of said trigger lever defining an angle phi with said linear portion of said path followed by said trigger lever after being struck by said ratchet wheel tooth, the angle phi being greater than 90* and less than 180*, whereby said trigger lever is rotatably displaced along said path so as to carry said energy transmitting portion out of the locus of rotation of said ratchet wheel, said guide means guiding the return of said trigger lever to said position.
2. A compact flying printer as recited in claim 1, wherein said guide means is formed with a stopper portion having a stopper surface extending substantially parallel to said linear portion of said path for engagement by the body portion of said trigger lever and positioned to stop the rotational displacement of said trigger lever after the energy transmitting portion thereof is within the locus of said ratchet wheel tooth, the stopper portion of said guide means terminating in an edge region in the linear path of the striking face means of the neck portion of said trigger lever for cooperation with said striking face means to stop the linear displacement of said trigger lever and rotatably displace said trigger lever so that said energy transmitting portion is out of the locus of said ratchet wheel tooth.
3. A compact flying printer as recited in claim 2, wherein said guide means includes an aperture for receiving said tail portion of said trigger lever, said aperture being dimensioned to define a pivot point together with said tail for the rotational displacement of said trigger lever while permitting the linear displacement of the tail portion of said trigger lever through said aperture.
4. A compact flying printer as recited in claim 3, wherein said body portion includes a laterally projecting stopper face for engagement against said stopper surface of said guide means.
5. A compact flying printer as recited in claim 3, wherein said guide means includes a guide slot terminating in an end wall and dimensioned to receive said body portion of said trigger lever, said biasing means engaging said body portion against said slot and wall at said rest position, said slot being dimensioned to permit the passage of said trigger lever therethrough for removal of said trigger lever from said guide means.
6. A compact flying Printer as recited in claim 1, including a plurality of said hammer levers in side-by-side relation, each of said hammer levers having a portion projecting therefrom in a direction away from said print drum, said printer including a hammer lever guide plate positioned adjacent said print drum with said hammer lever therebetween, said hammer lever guide plate including a plurality of openings therethrough dimensioned to receive said projecting portions of said hammer lever for guiding the pivotable displacement of said hammer lever, said openings in said hammer lever guide being aligned in a zig-zag array consisting of at least two lines of openings, the openings associated with adjacent hammer levers being on different lines so as to minimize the spacing between adjacent hammer levers.
US00118427A 1970-02-27 1971-02-24 Compact flying printer Expired - Lifetime US3795185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45016451A JPS5149252B1 (en) 1970-02-27 1970-02-27

Publications (1)

Publication Number Publication Date
US3795185A true US3795185A (en) 1974-03-05

Family

ID=11916593

Family Applications (1)

Application Number Title Priority Date Filing Date
US00118427A Expired - Lifetime US3795185A (en) 1970-02-27 1971-02-24 Compact flying printer

Country Status (4)

Country Link
US (1) US3795185A (en)
JP (1) JPS5149252B1 (en)
CH (2) CH532290A (en)
DE (2) DE2166747A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891078A (en) * 1973-04-27 1975-06-24 Triumph Werke Nuernberg Ag Ribbon shifting arrangement
US3967551A (en) * 1974-07-31 1976-07-06 Tokyo Juki Kogyo Kabushiki Kaisha Print mechanism with rockable interposing lever for print hammer
US4003460A (en) * 1974-06-21 1977-01-18 Honeywell Information Systems, Inc. Type ribbon deskewing means for a type ribbon feed apparatus
US4008662A (en) * 1975-03-10 1977-02-22 Ricoh Co., Ltd. Printer ribbon drive apparatus
US4009655A (en) * 1975-07-07 1977-03-01 Tokyo Juki Kogyo Kabushiki Kaisha Print hammer actuation device
US4244288A (en) * 1977-03-26 1981-01-13 Kyodo Insatsu Kabushiki Kaisha Flying printer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070963A (en) * 1976-04-12 1978-01-31 Anadex, Inc. Impact line printer
DE3210024C2 (en) * 1982-03-19 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Device for the detachable fastening of rods in support plates

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766686A (en) * 1953-06-11 1956-10-16 Hughes Aircraft Co High speed electro-mechanical interference-type transducer
US2897752A (en) * 1956-12-28 1959-08-04 Ibm High speed printing apparatus
US2949846A (en) * 1958-03-28 1960-08-23 Burroughs Corp Printing mechanism
US3139820A (en) * 1961-10-16 1964-07-07 Holley Carburetor Co Print hammer mechanism
US3156180A (en) * 1961-09-18 1964-11-10 Holley Comp Products Company Permanent magnet hammer module in high speed printers
US3175487A (en) * 1962-09-14 1965-03-30 Ncr Co Hammer driving means in high speed printers
US3292531A (en) * 1964-11-28 1966-12-20 Kienzle Apparate Gmbh Printing hammer arrangement
US3351007A (en) * 1965-10-18 1967-11-07 Control Data Corp Print hammer rapid reset means in high speed printers
US3386376A (en) * 1965-09-08 1968-06-04 Kienzle Apparate Gmbh Damping means to prevent print hammer rebound
US3598046A (en) * 1968-05-13 1971-08-10 Suwa Seikosha Kk Print hammer interposer and actuating means in flying printers
US3623428A (en) * 1968-04-30 1971-11-30 Suwa Seikosha Kk Flying printer
US3623429A (en) * 1968-04-30 1971-11-30 Suwa Seikosha Kk Hammer lever construction for flying printer
US3648602A (en) * 1970-04-27 1972-03-14 Avgerinos Inc Parallel input printing mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL78652C (en) * 1947-06-21
DE1869015U (en) * 1962-09-29 1963-03-21 Max Grundig DRIVE DEVICE FOR RIBBON TRANSPORT OF ELEVATOR DRIVEN TYPING, BOOKING OR SIMILAR MACHINES.
DE1921933C3 (en) * 1968-04-30 1982-04-08 Kabushiki Kaisha Suwa Seikosha, Tokyo High-speed printer

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2766686A (en) * 1953-06-11 1956-10-16 Hughes Aircraft Co High speed electro-mechanical interference-type transducer
US2897752A (en) * 1956-12-28 1959-08-04 Ibm High speed printing apparatus
US2949846A (en) * 1958-03-28 1960-08-23 Burroughs Corp Printing mechanism
US3156180A (en) * 1961-09-18 1964-11-10 Holley Comp Products Company Permanent magnet hammer module in high speed printers
US3139820A (en) * 1961-10-16 1964-07-07 Holley Carburetor Co Print hammer mechanism
US3175487A (en) * 1962-09-14 1965-03-30 Ncr Co Hammer driving means in high speed printers
US3292531A (en) * 1964-11-28 1966-12-20 Kienzle Apparate Gmbh Printing hammer arrangement
US3386376A (en) * 1965-09-08 1968-06-04 Kienzle Apparate Gmbh Damping means to prevent print hammer rebound
US3351007A (en) * 1965-10-18 1967-11-07 Control Data Corp Print hammer rapid reset means in high speed printers
US3623428A (en) * 1968-04-30 1971-11-30 Suwa Seikosha Kk Flying printer
US3623429A (en) * 1968-04-30 1971-11-30 Suwa Seikosha Kk Hammer lever construction for flying printer
US3598046A (en) * 1968-05-13 1971-08-10 Suwa Seikosha Kk Print hammer interposer and actuating means in flying printers
US3648602A (en) * 1970-04-27 1972-03-14 Avgerinos Inc Parallel input printing mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891078A (en) * 1973-04-27 1975-06-24 Triumph Werke Nuernberg Ag Ribbon shifting arrangement
US4003460A (en) * 1974-06-21 1977-01-18 Honeywell Information Systems, Inc. Type ribbon deskewing means for a type ribbon feed apparatus
US3967551A (en) * 1974-07-31 1976-07-06 Tokyo Juki Kogyo Kabushiki Kaisha Print mechanism with rockable interposing lever for print hammer
US4008662A (en) * 1975-03-10 1977-02-22 Ricoh Co., Ltd. Printer ribbon drive apparatus
US4009655A (en) * 1975-07-07 1977-03-01 Tokyo Juki Kogyo Kabushiki Kaisha Print hammer actuation device
US4244288A (en) * 1977-03-26 1981-01-13 Kyodo Insatsu Kabushiki Kaisha Flying printer

Also Published As

Publication number Publication date
DE2166745A1 (en) 1975-12-18
DE2109641B2 (en) 1976-10-07
DE2166747A1 (en) 1975-12-04
DE2166745C2 (en) 1982-06-03
DE2109641A1 (en) 1971-09-09
JPS5149252B1 (en) 1976-12-25
CH541835A (en) 1973-10-31
CH532290A (en) 1972-12-31

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