JPS57205167A - Wire print head - Google Patents

Wire print head

Info

Publication number
JPS57205167A
JPS57205167A JP9073881A JP9073881A JPS57205167A JP S57205167 A JPS57205167 A JP S57205167A JP 9073881 A JP9073881 A JP 9073881A JP 9073881 A JP9073881 A JP 9073881A JP S57205167 A JPS57205167 A JP S57205167A
Authority
JP
Japan
Prior art keywords
reset spring
armature
airtight housing
vibration
air
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
JP9073881A
Other languages
Japanese (ja)
Inventor
Mitsuyoshi Tsukada
Kenji Sato
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.)
Oki Electric Industry Co Ltd
Original Assignee
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP9073881A priority Critical patent/JPS57205167A/en
Publication of JPS57205167A publication Critical patent/JPS57205167A/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
    • 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

Abstract

PURPOSE:To effectively suppress the vibration of an armature by fixing a reset spring composed of leaf springs having cut grooves of no directivity in an airtight housing at the back of the armature and causing the reset spring to perform viscous damping. CONSTITUTION:A reset spring 24 to which one end of a print element wire 21 is connected is arranged in an airtight housing 23 at the back of an armature 19. Also the outer circumference of the reset spring 24 is fixed and supported between the shoulder 25 and the upper lid 26 of the airtight housing 23 and the reset spring 24 also divides the airtight housing 23 into 2 air chambers 27, 28. By this arrangement, when the reset spring 24 makes vibration interconnected with the armature 19 within the airtight housing 23, the air inside of both air chambers 27, 28 is caused to flow reciprocately only through cut grooves 12, 17 provided on the reset spring 24, and at this time air plays the role of a resistor and the vibration of the armature 19 is monentarily attenuated.
JP9073881A 1981-06-15 1981-06-15 Wire print head Pending JPS57205167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9073881A JPS57205167A (en) 1981-06-15 1981-06-15 Wire print head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9073881A JPS57205167A (en) 1981-06-15 1981-06-15 Wire print head

Publications (1)

Publication Number Publication Date
JPS57205167A true JPS57205167A (en) 1982-12-16

Family

ID=14006915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9073881A Pending JPS57205167A (en) 1981-06-15 1981-06-15 Wire print head

Country Status (1)

Country Link
JP (1) JPS57205167A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139643U (en) * 1986-02-27 1987-09-03

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139643U (en) * 1986-02-27 1987-09-03
JPH05365Y2 (en) * 1986-02-27 1993-01-07

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