JPH0159635U - - Google Patents

Info

Publication number
JPH0159635U
JPH0159635U JP15331687U JP15331687U JPH0159635U JP H0159635 U JPH0159635 U JP H0159635U JP 15331687 U JP15331687 U JP 15331687U JP 15331687 U JP15331687 U JP 15331687U JP H0159635 U JPH0159635 U JP H0159635U
Authority
JP
Japan
Prior art keywords
core
leaf spring
armature
printing head
held
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.)
Granted
Application number
JP15331687U
Other languages
Japanese (ja)
Other versions
JP2511398Y2 (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 JP1987153316U priority Critical patent/JP2511398Y2/en
Publication of JPH0159635U publication Critical patent/JPH0159635U/ja
Application granted granted Critical
Publication of JP2511398Y2 publication Critical patent/JP2511398Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Impact Printers (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るレーザー焼入処理したコ
アの説明断面図及びコア先端部のビツカース硬度
を示す図面、第２図はバネチヤージ型印字ヘツド
の要部端面図、第３図はコア先端部の拡大断面説
面図、第４図は従来のコアの一例の要部構造説明
図、第５図は印字ドツト数に対する摩耗量を示す
図である。 １……印字ワイヤ、３……アーマチユア、１０
……コイル、１１……コア、１３……板バネ、１
４……Ａ部（摩耗筒所）。 Fig. 1 is an explanatory cross-sectional view of a laser-hardened core according to the present invention and a drawing showing the Vickers hardness of the tip of the core, Fig. 2 is an end view of the main part of a spring charge type printing head, and Fig. 3 is the tip of the core. FIG. 4 is an explanatory view of the main part structure of an example of a conventional core, and FIG. 5 is a diagram showing the amount of wear versus the number of printed dots. 1... Printing wire, 3... Armature, 10
... Coil, 11 ... Core, 13 ... Leaf spring, 1
4... Part A (wear area).

Claims (1)

【実用新案登録請求の範囲】 コアに磁気的に保持された板バネに固設したア
ーマチユアを消磁解放し、板バネの復元力を利用
して印字を行なうバネチヤージ型印字ヘツドにお
いて、 コアとして、該コアの先端部であつて、アーマ
チユア保持時コアと板バネが接する部位をレーザ
光線により局部的に焼入したものを用いたことを
特徴とするワイヤドツト印字ヘツド。[Claim for Utility Model Registration] In a spring charge type printing head that demagnetizes and releases an armature fixed to a leaf spring that is magnetically held in the core and performs printing using the restoring force of the leaf spring, A wire dot printing head characterized in that the tip of the core, where the core and the leaf spring come into contact when the armature is held, is locally hardened with a laser beam.
JP1987153316U 1987-10-08 1987-10-08 Wire dot print head Expired - Lifetime JP2511398Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987153316U JP2511398Y2 (en) 1987-10-08 1987-10-08 Wire dot print head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987153316U JP2511398Y2 (en) 1987-10-08 1987-10-08 Wire dot print head

Publications (2)

Publication Number Publication Date
JPH0159635U true JPH0159635U (en) 1989-04-14
JP2511398Y2 JP2511398Y2 (en) 1996-09-25

Family

ID=31429045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987153316U Expired - Lifetime JP2511398Y2 (en) 1987-10-08 1987-10-08 Wire dot print head

Country Status (1)

Country Link
JP (1) JP2511398Y2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5723019A (en) * 1980-07-17 1982-02-06 Toshiba Corp Treatment for hardening surface
JPS6046316A (en) * 1983-08-25 1985-03-13 Inoue Japax Res Inc Precise heat treating apparatus
JPS60240461A (en) * 1984-05-15 1985-11-29 Hitachi Metals Ltd Wire dot printer head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5723019A (en) * 1980-07-17 1982-02-06 Toshiba Corp Treatment for hardening surface
JPS6046316A (en) * 1983-08-25 1985-03-13 Inoue Japax Res Inc Precise heat treating apparatus
JPS60240461A (en) * 1984-05-15 1985-11-29 Hitachi Metals Ltd Wire dot printer head

Also Published As

Publication number Publication date
JP2511398Y2 (en) 1996-09-25

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