JPS5722073A - Spring charge type printing hammer - Google Patents

Spring charge type printing hammer

Info

Publication number
JPS5722073A
JPS5722073A JP9669180A JP9669180A JPS5722073A JP S5722073 A JPS5722073 A JP S5722073A JP 9669180 A JP9669180 A JP 9669180A JP 9669180 A JP9669180 A JP 9669180A JP S5722073 A JPS5722073 A JP S5722073A
Authority
JP
Japan
Prior art keywords
plate spring
armature section
main body
armature
composite material
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
JP9669180A
Other languages
Japanese (ja)
Inventor
Masayasu Tsujimoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9669180A priority Critical patent/JPS5722073A/en
Publication of JPS5722073A publication Critical patent/JPS5722073A/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
    • B41J2/235—Print head assemblies
    • B41J2/25—Print wires
    • B41J2/26—Connection of print wire and actuator

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To increase printing speed by reducing weight of a plate spring while maintaining strength of a printing hammer, by dividing the plate spring into a plate spring main body and an armature section, and then, by bending the edge of a printing wire to an L shape and embedding it into the armature section. CONSTITUTION:A plate spring 6' is divided into a plate spring main body 6a and an armature section 6b. The plate spring main body 6a is made of a spring material of a ferromagnetic substance, such as permalloy, and is attracted to a magnet. The armature section 6b is made of a light-and-strong composite material, such as a plastic strengthened by carbon fiber, etc., and at the time of forming said armature, the end of an almost L-shaped printing wire 2 is embedded into the composite material so that they become a continuous body. Joining between the plate spring main body 6a and the armature section 6b is feasible either by using an adhesive or by performing at the time of forming into an integral body of the armature section 6b consisting of the composite material, satisfactory strength can be available in either case.
JP9669180A 1980-07-15 1980-07-15 Spring charge type printing hammer Pending JPS5722073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9669180A JPS5722073A (en) 1980-07-15 1980-07-15 Spring charge type printing hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9669180A JPS5722073A (en) 1980-07-15 1980-07-15 Spring charge type printing hammer

Publications (1)

Publication Number Publication Date
JPS5722073A true JPS5722073A (en) 1982-02-04

Family

ID=14171800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9669180A Pending JPS5722073A (en) 1980-07-15 1980-07-15 Spring charge type printing hammer

Country Status (1)

Country Link
JP (1) JPS5722073A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123678A (en) * 1982-12-29 1984-07-17 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Printing actuator
US4537520A (en) * 1982-11-16 1985-08-27 Tokyo Electric Co., Ltd. Dot printer head with reduced magnetic interference
US4771689A (en) * 1985-09-25 1988-09-20 Dataproducts Corporation Unitary spring armature for a dot matrix printer
EP0500260A2 (en) * 1991-02-19 1992-08-26 Ncr International Inc. Improved print head apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537520A (en) * 1982-11-16 1985-08-27 Tokyo Electric Co., Ltd. Dot printer head with reduced magnetic interference
JPS59123678A (en) * 1982-12-29 1984-07-17 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Printing actuator
US4771689A (en) * 1985-09-25 1988-09-20 Dataproducts Corporation Unitary spring armature for a dot matrix printer
EP0500260A2 (en) * 1991-02-19 1992-08-26 Ncr International Inc. Improved print head apparatus

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