JPS6446235U - - Google Patents

Info

Publication number
JPS6446235U
JPS6446235U JP1987178392U JP17839287U JPS6446235U JP S6446235 U JPS6446235 U JP S6446235U JP 1987178392 U JP1987178392 U JP 1987178392U JP 17839287 U JP17839287 U JP 17839287U JP S6446235 U JPS6446235 U JP S6446235U
Authority
JP
Japan
Prior art keywords
needle
head
outer diameter
armature
section
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
JP1987178392U
Other languages
English (en)
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 filed Critical
Priority to JP1987178392U priority Critical patent/JPS6446235U/ja
Priority to GB8810619A priority patent/GB2209502B/en
Publication of JPS6446235U publication Critical patent/JPS6446235U/ja
Priority to US07/497,722 priority patent/US5039236A/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
    • 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
    • B41J2/275—Actuators for print wires of clapper type

Landscapes

  • Impact Printers (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す半断面図、第
２図はニードルリターンバネ部分の要部拡大図、
第３図はニードルの拡大図である。 １：ノーズ、２：ニードル、２ａ：ニードル部
、２ｂ：ニードル頭部、２ｃ：緩衝部、５：ニー
ドル後端ガイド、６：ニードルリターンバネ、１
３：コア、２１：アーマチユア。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) アーマチユアとニードルとが分離され、ニ
    ードルのアーマチユアに当接するニードル頭部と
    ニードル後端ガイドとの間に配設されたニードル
    ターンバネを有し、コアでアーマチユアを吸引し
    、このアーマチユアの移動によつてニードルを飛
    行させる印字ヘツドにおいて、前記ニードルリタ
    ーンバネは、圧縮コイルバネであつて、ニードル
    後端ガイド側の端面径をニードル頭部側の端面径
    より大きくし、ほぼ円錐形に形成したことを特徴
    とする印字ヘツド。 (2) ニードルリターンバネは、少なくとも径大
    部の巻端が２巻以上同径密着巻きに形成されてい
    ることを特徴とする実用新案登録請求の範囲第１
    項記載の印字ヘツド。 (3) ニードルは、ヘツダ加工により一体に成形
    されていることを特徴とする実用新案登録請求の
    範囲第１項記載の印字ヘツド。 (4) ニードル頭部の外径は、ニードル部の外径
    の２倍以下に形成されていることを特徴とする実
    用新案登録請求の範囲第３項記載の印字ヘツド。 (5) ニードル頭部とニードル部間には、ニード
    ル頭部より先細りのテーパ又は曲線よりなる緩衝
    部を設けてなり、この緩衝部のニードル頭部側の
    外径は、ニードル部の外径の１．５〜１．７倍で
    、緩衝部の長さは、ニードル部の外径の０．２５
    〜０．３１倍に形成されていることを特徴とする
    実用新案登録請求の範囲第３項記載の印字ヘツド
    。
JP1987178392U 1987-05-11 1987-11-25 Pending JPS6446235U (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1987178392U JPS6446235U (ja) 1987-05-11 1987-11-25
GB8810619A GB2209502B (en) 1987-05-11 1988-05-05 Print head
US07/497,722 US5039236A (en) 1987-05-11 1990-03-15 Print head with tapered conical return spring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7005787 1987-05-11
JP1987178392U JPS6446235U (ja) 1987-05-11 1987-11-25

Publications (1)

Publication Number Publication Date
JPS6446235U true JPS6446235U (ja) 1989-03-22

Family

ID=26411220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987178392U Pending JPS6446235U (ja) 1987-05-11 1987-11-25

Country Status (3)

Country Link
US (1) US5039236A (ja)
JP (1) JPS6446235U (ja)
GB (1) GB2209502B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239947A (ja) * 1988-07-29 1990-02-08 Seikosha Co Ltd 印字ヘッド
JP2519503Y2 (ja) * 1989-06-19 1996-12-04 シチズン時計 株式会社 印字ヘッド
DE102019107518A1 (de) * 2019-03-25 2020-10-01 Nass Magnet Gmbh Elektromagnetisches Stellglied

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7015426U (de) * 1970-04-24 1970-09-10 Rena Bueromaschf Gmbh Mosaikdruckkopf.
GB1343105A (en) * 1971-08-05 1974-01-10 Rena Bueromaschf Gmbh Printing apparatsu
US4014425A (en) * 1973-05-30 1977-03-29 U.S. Philips Corporation Recording element for a matrix printer
US4018155A (en) * 1975-06-02 1977-04-19 Mohawk Data Sciences Corporation Ballistic print hammer assembly
US4016965A (en) * 1975-08-19 1977-04-12 Ncr Corporation Matrix print head and solenoid driver
JPS5621868A (en) * 1979-07-31 1981-02-28 Toshiba Corp Wire for dot printer
US4459051A (en) * 1979-08-15 1984-07-10 Canon Kabushiki Kaisha Matrix printer
JPS5727764A (en) * 1980-07-28 1982-02-15 Tokyo Tungsten Co Ltd Terminal for dot printer and its manufacture
JPS5826546U (ja) * 1981-08-14 1983-02-19 東芝テック株式会社 ドットプリンタヘッドのニ−ドル
CA1223837A (en) * 1983-09-26 1987-07-07 Takeshi Takemoto Electromagnetic printing hammer device
JPS612567A (ja) * 1984-02-10 1986-01-08 Katsusato Fujiyoshi ドツトワイヤ−
US4728205A (en) * 1984-05-15 1988-03-01 Canon Kabushiki Kaisha Positioning of dampeners in a wire matrix print head
EP0217969A1 (de) * 1985-09-28 1987-04-15 Mannesmann Tally Ges. mbH Tauchankerelektromagnet für Frequenzen im Bereich bis 3000 Hz und Höher
FR2597789A1 (fr) * 1986-04-25 1987-10-30 Comadur Sa Tete d'impression pour imprimante par matrice de points
US4852481A (en) * 1988-07-14 1989-08-01 L. James Hubbard Print hammer mechanism

Also Published As

Publication number Publication date
US5039236A (en) 1991-08-13
GB8810619D0 (en) 1988-06-08
GB2209502A (en) 1989-05-17
GB2209502B (en) 1991-08-21

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