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GB2004504A - Improved hammer for impact printer - Google Patents

Improved hammer for impact printer

Info

Publication number
GB2004504A
GB2004504A GB7835229A GB7835229A GB2004504A GB 2004504 A GB2004504 A GB 2004504A GB 7835229 A GB7835229 A GB 7835229A GB 7835229 A GB7835229 A GB 7835229A GB 2004504 A GB2004504 A GB 2004504A
Authority
GB
United Kingdom
Prior art keywords
magnetic structure
movable
movable magnetic
impact printer
stationary
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
GB7835229A
Other versions
GB2004504B (en
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB2004504A publication Critical patent/GB2004504A/en
Application granted granted Critical
Publication of GB2004504B publication Critical patent/GB2004504B/en
Expired legal-status Critical Current

Links

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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/38—Electromagnetic means
    • 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
    • B41J2/22—Typewriters 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
    • B41J2/23—Typewriters 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
    • B41J2/27—Actuators for print wires
    • B41J2/285—Actuators for print wires of plunger type
    • 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
    • B41J9/42—Hammer-impression mechanisms with anti-rebound arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Impact Printers (AREA)
  • Electromagnets (AREA)

Abstract

The hammer comprises a solenoid including a stationary magnetic structure 50 with an opening extending therethrough and a movable magnetic structure 54 adapted to move through the opening. The movable magnetic structure 54 is accelerated by the flux path from the stationary magnetic structure 50 and through the movable magnetic structure as the gap between the movable and stationary magnetic structures closes such that the movable magnetic structure 54 is in substantially unobstructed free flight before the impact area 58 coupled to the movable magnetic structure strikes a character element (not shown) against a platen (not shown). The impact area 58 may be connected to the structure 54 by a rigid non-magnetic member 60. <IMAGE>
GB7835229A 1977-09-14 1978-08-31 Hammer for impact printer Expired GB2004504B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83326777A 1977-09-14 1977-09-14

Publications (2)

Publication Number Publication Date
GB2004504A true GB2004504A (en) 1979-04-04
GB2004504B GB2004504B (en) 1982-02-24

Family

ID=25263917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835229A Expired GB2004504B (en) 1977-09-14 1978-08-31 Hammer for impact printer

Country Status (12)

Country Link
JP (1) JPS5453026A (en)
AU (1) AU521251B2 (en)
BE (1) BE870390A (en)
BR (1) BR7805976A (en)
CA (1) CA1108470A (en)
CH (1) CH639899A5 (en)
DE (1) DE2839024A1 (en)
FR (1) FR2403196A1 (en)
GB (1) GB2004504B (en)
IT (1) IT1098621B (en)
MX (1) MX4183E (en)
NL (1) NL7809252A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064632A2 (en) * 1981-04-24 1982-11-17 Siemens Aktiengesellschaft Print hammer device
EP0100436A1 (en) * 1982-07-28 1984-02-15 International Business Machines Corporation Linear solenoid device

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE425068B (en) * 1981-01-19 1982-08-30 Facit Ab PRESSURE EFFECTS
SE425067B (en) * 1981-01-19 1982-08-30 Facit Ab PRESSURE HAMMER FOR PRINTERS AND PRINTERS
DE3116402C2 (en) * 1981-04-24 1983-07-21 Siemens AG, 1000 Berlin und 8000 München Low rebound plunger magnet system
DE3152448C2 (en) * 1981-04-24 1984-09-13 Siemens AG, 1000 Berlin und 8000 München Plunger magnet system with high efficiency
DE3116430C2 (en) * 1981-04-24 1983-03-31 Siemens AG, 1000 Berlin und 8000 München Hammer pressure device with a plunger magnet system containing an optoelectronic sensor
JPS5959479A (en) * 1982-09-29 1984-04-05 Ricoh Co Ltd Print hammer mechanism
DE3442223A1 (en) * 1984-11-19 1986-05-28 Olympia Werke Ag, 2940 Wilhelmshaven Plunger-type armature magnet system having an armature which is constructed as a push rod, especially for a printing hammer device
JPH0434040Y2 (en) * 1985-07-11 1992-08-13
JPH0547652Y2 (en) * 1985-11-07 1993-12-15
JPH051411Y2 (en) * 1986-02-27 1993-01-14
JPS63130175A (en) * 1986-11-13 1988-06-02 エヌ・シー・アール・インターナショナル・インコーポレイテッド Moving piezoelectric element actuator-unit
BE1001757A3 (en) * 1988-06-03 1990-02-27 Electronique Et Telecomm Bell HAMMER PRINTER HEAD.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543906A (en) * 1967-08-21 1970-12-01 Edward J Buxton Solenoid controlled printing hammer mechanism
NL7510968A (en) * 1974-09-27 1976-03-30 Bell Telephone Mfg PRESSURE HEAD.
US4018155A (en) * 1975-06-02 1977-04-19 Mohawk Data Sciences Corporation Ballistic print hammer assembly
DD129025A1 (en) * 1976-09-09 1977-12-21 Volker Flechtner ELECTRODYNAMIC PRESSURE HAMMER DRIVE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064632A2 (en) * 1981-04-24 1982-11-17 Siemens Aktiengesellschaft Print hammer device
EP0064632A3 (en) * 1981-04-24 1984-02-22 Siemens Aktiengesellschaft Print hammer device
EP0100436A1 (en) * 1982-07-28 1984-02-15 International Business Machines Corporation Linear solenoid device

Also Published As

Publication number Publication date
AU521251B2 (en) 1982-03-25
IT7827633A0 (en) 1978-09-13
NL7809252A (en) 1979-03-16
AU3890678A (en) 1980-02-21
MX4183E (en) 1982-01-20
CA1108470A (en) 1981-09-08
FR2403196A1 (en) 1979-04-13
JPS5453026A (en) 1979-04-26
DE2839024A1 (en) 1979-03-22
CH639899A5 (en) 1983-12-15
IT1098621B (en) 1985-09-07
BR7805976A (en) 1979-05-29
BE870390A (en) 1979-03-12
GB2004504B (en) 1982-02-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee