JPS57187269A - Printing head - Google Patents

Printing head

Info

Publication number
JPS57187269A
JPS57187269A JP56071445A JP7144581A JPS57187269A JP S57187269 A JPS57187269 A JP S57187269A JP 56071445 A JP56071445 A JP 56071445A JP 7144581 A JP7144581 A JP 7144581A JP S57187269 A JPS57187269 A JP S57187269A
Authority
JP
Japan
Prior art keywords
core
radiating members
coil
tip
serving
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
JP56071445A
Other languages
Japanese (ja)
Inventor
Yutaka Honma
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56071445A priority Critical patent/JPS57187269A/en
Publication of JPS57187269A publication Critical patent/JPS57187269A/en
Pending 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/377—Cooling or ventilating arrangements

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Impact Printers (AREA)

Abstract

PURPOSE:To prevent dust from permeating into the inner part of a core and to release thermal accumulation due to heating of an electromagnet by providing radiating members serving also as a cover on the outside of the core. CONSTITUTION:Radiating members 10, 11 serving alo as a cover are provided on the outside of a core 1. When a coil 2 is magnetized, an armature 4 is attracted to an iron core 1d and revolved, and a collar 6 is revolved against the energizing force of a plate spring 7a. After this revolution the tip of a wire 5 is protruded from the tip of a head 7 and printed. As printing is conducted by repetition of magnetization and demagnetization of the coil 2, the coil is heated and radiated through radiating members 10, 11 installed closely around the outer circumference 1g of the core 1. When fins 10b, 11b are provided on the radiating members 10, 11 more effective and preferable radiation can be obtained.
JP56071445A 1981-05-14 1981-05-14 Printing head Pending JPS57187269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56071445A JPS57187269A (en) 1981-05-14 1981-05-14 Printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56071445A JPS57187269A (en) 1981-05-14 1981-05-14 Printing head

Publications (1)

Publication Number Publication Date
JPS57187269A true JPS57187269A (en) 1982-11-17

Family

ID=13460750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56071445A Pending JPS57187269A (en) 1981-05-14 1981-05-14 Printing head

Country Status (1)

Country Link
JP (1) JPS57187269A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61112933U (en) * 1984-12-27 1986-07-17
JPS62103156A (en) * 1985-10-30 1987-05-13 Seikosha Co Ltd Electromagnetic driver for printing element
EP0447089A2 (en) * 1990-03-13 1991-09-18 Seiko Epson Corporation Printing head for use in a wire impact dot printer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61112933U (en) * 1984-12-27 1986-07-17
JPH0327795Y2 (en) * 1984-12-27 1991-06-17
JPS62103156A (en) * 1985-10-30 1987-05-13 Seikosha Co Ltd Electromagnetic driver for printing element
JPH0528182B2 (en) * 1985-10-30 1993-04-23 Seikosha Kk
EP0447089A2 (en) * 1990-03-13 1991-09-18 Seiko Epson Corporation Printing head for use in a wire impact dot printer

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