JPS55164170A - Printing head for dot printer - Google Patents

Printing head for dot printer

Info

Publication number
JPS55164170A
JPS55164170A JP5692479A JP5692479A JPS55164170A JP S55164170 A JPS55164170 A JP S55164170A JP 5692479 A JP5692479 A JP 5692479A JP 5692479 A JP5692479 A JP 5692479A JP S55164170 A JPS55164170 A JP S55164170A
Authority
JP
Japan
Prior art keywords
spring
end portions
permanent magnet
core
magnet coil
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.)
Pending
Application number
JP5692479A
Other languages
Japanese (ja)
Inventor
Minoru Isobe
Ko Kikuchi
Minoru Tejima
Tadashi Kodama
Wataru Obara
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5692479A priority Critical patent/JPS55164170A/en
Priority to GB8014271A priority patent/GB2049557B/en
Priority to US06/147,106 priority patent/US4348120A/en
Priority to DE3017903A priority patent/DE3017903C2/en
Publication of JPS55164170A publication Critical patent/JPS55164170A/en
Pending legal-status Critical Current

Links

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE: To reduce the production cost, number of assembling steps and installation space of the device by a method wherein the magnetic field of a ring-shaped permanent magnet common to plural pieces provided in a magnetic path is divided and the end portions of a ring-shaped leaf spring of which the end portion is divided in plurality are attracted.
CONSTITUTION: When no current is supplied to a magnet coil 4, the end portions 7a of a leaf spring 7 are attracted toward the core 2 of an armature pin 9 due to the magnetic force of a permanent magnet 3, the end portions 7a of the spring 7 being deviated. With the magnet coil 4 supplied with current, the magnetic field of the magnet coil 4 cancels that of the permanent magnet 3, so that the armature pin 9 on the spring 7 is no longer attracted toward the core 2. Accordingly, the end portions 7a of the spring 7 are released from deviation, and a print wire 8 fixed to the tip end of the spring 7 is driven and guided along a pin guide 11. Then, with the current supply for the magnet coil 4 interrupted, the armature pin 9 on the spring 7 is reattracted toward the core 2 due to the magnetic force of the permanent magnet 3.
COPYRIGHT: (C)1980,JPO&Japio
JP5692479A 1979-05-11 1979-05-11 Printing head for dot printer Pending JPS55164170A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5692479A JPS55164170A (en) 1979-05-11 1979-05-11 Printing head for dot printer
GB8014271A GB2049557B (en) 1979-05-11 1980-04-30 Dor printer head
US06/147,106 US4348120A (en) 1979-05-11 1980-05-06 Printing head for a dot printer
DE3017903A DE3017903C2 (en) 1979-05-11 1980-05-09 Printhead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5692479A JPS55164170A (en) 1979-05-11 1979-05-11 Printing head for dot printer

Publications (1)

Publication Number Publication Date
JPS55164170A true JPS55164170A (en) 1980-12-20

Family

ID=13041035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5692479A Pending JPS55164170A (en) 1979-05-11 1979-05-11 Printing head for dot printer

Country Status (1)

Country Link
JP (1) JPS55164170A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158267A (en) * 1983-02-28 1984-09-07 Hitachi Metals Ltd Print head for printer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551569A (en) * 1978-10-10 1980-04-15 Tally Corp Divided ring magnet printing head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551569A (en) * 1978-10-10 1980-04-15 Tally Corp Divided ring magnet printing head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158267A (en) * 1983-02-28 1984-09-07 Hitachi Metals Ltd Print head for printer

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