JPS639553A - Printing head - Google Patents
Printing headInfo
- Publication number
- JPS639553A JPS639553A JP15467386A JP15467386A JPS639553A JP S639553 A JPS639553 A JP S639553A JP 15467386 A JP15467386 A JP 15467386A JP 15467386 A JP15467386 A JP 15467386A JP S639553 A JPS639553 A JP S639553A
- Authority
- JP
- Japan
- Prior art keywords
- armature
- yoke
- yoke core
- print head
- core
- 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
Links
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 6
- 239000010452 phosphate Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000004519 grease Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 238000005987 sulfurization reaction Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract description 4
- 239000011572 manganese Substances 0.000 abstract description 4
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000005284 excitation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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
- B41J2/275—Actuators for print wires of clapper type
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
［従来の技術］
コンビ、−夕などに用いられるドットインノ臂りト式プ
リンタは、印字を行なう印字ワイヤを駆動するための印
字ヘッド全備えている。[Detailed Description of the Invention] [Industrial Field of Application] [Prior Art] Dot-in-note printers used in combinations, printers, etc. are equipped with a print head for driving a print wire that performs printing. There is.
この印字ヘッドは第１図および第２図で示すようにヨー
クコア１．印字ワイヤ５を動かすアーマチュア２および
励磁コイル３から構成てれている。As shown in FIGS. 1 and 2, this print head has a yoke core 1. It consists of an armature 2 that moves a printing wire 5 and an excitation coil 3.
ヨークコア１は励磁コイル３を巻装した吸着部ＩＡと、
この吸着部ＩＡに連続して磁路を形成するヨーク部ＩＢ
を有し、ヨーク部ＩＢを有し、ヨーク部ＩＢの一端面が
アーマチュア２を支点として支持している。そして、励
磁コイル３に交流電流を通すとヨークコア１が励磁され
、その吸看部ＩＡがアーマチュア２に吸引力を作用し復
帰はね４のばね力に抗して吸引するので、アーマチュア
２がヨークコア１のヨーク部ＩＢを支点として揺動して
印字ワイヤ５を動かす。なお、ヨークコア１は複数本の
印字ワイヤ５に対応して複数個のものを放射状に並べて
ブロック状に一体に形成しヘッドを構成している。The yoke core 1 includes an attraction part IA around which an excitation coil 3 is wound,
Yoke part IB that forms a magnetic path continuous to this attraction part IA
It has a yoke part IB, and one end surface of the yoke part IB supports the armature 2 as a fulcrum. When an alternating current is passed through the excitation coil 3, the yoke core 1 is excited, and its suction portion IA applies an attractive force to the armature 2 against the spring force of the return spring 4, so that the armature 2 The printing wire 5 is moved by swinging about the yoke part IB of 1 as a fulcrum. Note that a plurality of yoke cores 1 are arranged radially in correspondence with a plurality of printing wires 5 and integrally formed in a block shape to constitute a head.
しかして、この印字ヘッドにおいては、アーマチュア２
が揺動する毎に、アーマチュア２がこれを支持している
ヨークコア１のヨーク９１８の一端面と摺接する。この
摺接部は第２図中Ｓです。However, in this print head, the armature 2
Each time the armature 2 swings, the armature 2 comes into sliding contact with one end surface of the yoke 918 of the yoke core 1 supporting the armature 2. This sliding contact area is marked S in Figure 2.
アーマチュア２はプリンタの印字速度に応じた速度で動
作して前記ヨーク部ＩＢに摺接し、殊に最近ではドツト
インパクト式プリンタ用
高速化が要求されるようになってきており、これに応し
て単位時間当りにアーマチュア２がヨーク部ＩＢと摺接
する回数が増大している。従って、ヨークコア１のヨー
ク部ＩＢとアーマチュア２とが互いに接触する接触部に
おいては、アーマチュア２の摺接によるアーマチュア自
身およびヨークコア１の摩耗を極力抑制して、これらの
部品の耐久性を向上てせることか必要である。The armature 2 operates at a speed corresponding to the printing speed of the printer and comes into sliding contact with the yoke part IB.In particular, recently there has been a demand for higher speeds for dot impact printers, and in response to this, The number of times that the armature 2 comes into sliding contact with the yoke portion IB per unit time is increasing. Therefore, at the contact portion where the yoke portion IB of the yoke core 1 and the armature 2 come into contact with each other, wear of the armature itself and the yoke core 1 due to the sliding contact of the armature 2 is suppressed as much as possible, and the durability of these parts is improved. It is necessary.
［発明が解決しようとする問題点コ
しかして、従来の印字ヘッドにおいては、ヨークコア１
のヨーク部ＩＢとアーマチュア２との接触部にグリース
を介在式せて両者間の潤滑を行ない、アーマチュア２が
ヨーク部ＩＢと摺接することによる両部品の摩耗を防止
するようにしている。[Problems to be solved by the invention] However, in the conventional print head, the yoke core 1
Grease is interposed at the contact portion between the yoke portion IB and the armature 2 to lubricate the two, thereby preventing wear of both parts due to sliding contact between the armature 2 and the yoke portion IB.
しかしながら、グリースによる潤滑のみではアーマチー
ア２の接触によるヨークコア１のヨーク部ＩＢとアーマ
チーア２の摩耗を充分抑えることができず、ヨーク部Ｉ
Ｂとアーマチュア２の摩耗 ゛の進行が速かりた。従っ
て、ヨークコア１のヨーク部ＩＢとアーマチュア２の摩
耗を抑えて耐久性を高めた印字ヘッドの開発が要望され
ている。However, lubrication with grease alone cannot sufficiently suppress wear between the yoke portion IB of the yoke core 1 and the armature 2 due to contact between the armature 2 and the yoke portion IB of the yoke core 1.
Wear of B and armature 2 progressed quickly. Therefore, there is a demand for the development of a print head that suppresses wear of the yoke portion IB of the yoke core 1 and the armature 2 and increases durability.
本発明は前記事情に基づいてなされたもので、耐摩耗性
をもたせることにより摩耗を抑え耐久性を高めた部品を
備えた印字ヘッドを提供することを目的とする。The present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to provide a print head equipped with parts that have wear resistance to suppress wear and improve durability.
［問題点を解決するだめの手段と作用コ本発明の印字ヘ
ッドは、ヨークコアと、このヨークコアに揺動自在に支
持されヨークコアに吸引されて揺動し印字ワイヤを動作
させるアーマチュアとを具備し、ヨークコアおよびアー
マチュアの少なくとも一方に、潤滑性を有する物質から
なる表面被膜を形成したことを特徴とするものである。[Means and operations for solving the problem] The print head of the present invention includes a yoke core, and an armature that is swingably supported by the yoke core and is attracted by the yoke core to swing and operate the print wire, It is characterized in that a surface coating made of a lubricating substance is formed on at least one of the yoke core and the armature.
すなわち、表面被膜によりヨークコアとアーマチュアの
表面の摩擦係数を低減させて耐摩耗性をもたせるように
したものである。That is, the surface coating reduces the coefficient of friction between the surfaces of the yoke core and armature, thereby providing wear resistance.
［実施例］ 以下本発明の実施例を図面について説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
ここでは第１図お上び＠２図で示すところのドツトイン
パクト式プリンタ用の印字ヘッドを例にとって説明する
。Here, the print head for a dot impact printer shown in FIGS. 1 and 2 will be explained as an example.
ヨークコア１は鉄系磁性合金１例えばけい素３〜７重量
％−残部寅質的に鉄からなる焼結体で形成嘔れている。The yoke core 1 is formed of a sintered body of an iron-based magnetic alloy 1, for example, 3 to 7% by weight silicon and the balance essentially iron.
ヨークコア１に前記組成の鉄系磁性合金を用いるのは、
優れた磁気特性を得ることができるとともに、後述する
ところの我面俵膜の形成によりその優れた磁気特性が変
化しないためである。The reason why the iron-based magnetic alloy having the above composition is used for the yoke core 1 is as follows.
This is because not only excellent magnetic properties can be obtained, but also the excellent magnetic properties are not changed by the formation of a wafer bale film, which will be described later.
アーマチーア２は鉄系磁性合金、例えばけい素１〜２．
５重童Ｓｔ−含有するけい素鋼の板材で形成されている
。アーマチーアに前記組成のけい素鋼を使用するのは、
磁気特性が優れているとともへ後述する表面被膜の形成
による磁気特性の低下がないためである。Armachia 2 is an iron-based magnetic alloy, such as silicon 1-2.
It is made of a silicon steel plate containing 5-layered St-. The use of silicon steel with the above composition for armature is as follows:
This is because the magnetic properties are excellent and there is no deterioration in the magnetic properties due to the formation of a surface film, which will be described later.
そして、ヨークコア１０表面とアーマチュア２の表面に
は、夫々耐摩耗性を有する物質からなる表面被膜が夫々
形成しである。この表面破膜はヨークコア１とアーマチ
ュア２の表面を覆うものであシ、良好な潤滑性を有する
ことから、ヨークコア１とアーマチュア２の表面の摩擦
係数を低下させてすべりを良くし、結果として耐摩耗性
をもたせることができる。表面被膜は次に説明する数通
シの方法のいずれかによって形成する。そのひとつはり
ん酸塩被膜処理による方法である。この方法は化学化成
処理の１株であシ、表面被膜を形成する金属成分を含む
ＴＩ］浴性りん酸塩水溶液中にヨークコアまたはアーマ
チュアを浸漬することにより、焼結体狭面に金属の不溶
性りん酸塩被膜を生成させる方法である。鉄系合金から
なるヨーク；アおよびアーマチュアの表面に潤滑性に優
れた被膜を生成するには、被ｐＩｉ＆を形成する金属と
してマンガン（Ｍｎ）を用いる。このマンガン系のりん
酸塩被膜は摩擦係数が小さく、良好な潤滑性を有してい
る。なお、処理温度はヨークコアおよびアーマチュアの
磁気特性を損なわないようにするために１２０〜１３０
℃の範囲とする。A surface coating made of a material having wear resistance is formed on the surface of the yoke core 10 and the surface of the armature 2, respectively. This surface rupture film covers the surfaces of yoke core 1 and armature 2, and has good lubricity, so it reduces the coefficient of friction between the surfaces of yoke core 1 and armature 2, improves sliding, and results in durability. It can be made to have abrasive properties. The surface coating is formed by any of several methods described below. One of them is a method using a phosphate coating. This method is a type of chemical conversion treatment, and by immersing the yoke core or armature in a bath-based phosphate aqueous solution containing TI containing metal components that form a surface film, the narrow surface of the sintered body is coated with metal insolubility. This method produces a phosphate film. In order to form a film with excellent lubricity on the surfaces of the yoke and armature made of an iron-based alloy, manganese (Mn) is used as the metal forming the pIi&. This manganese-based phosphate coating has a small coefficient of friction and good lubricity. Note that the processing temperature is 120-130℃ in order not to damage the magnetic properties of the yoke core and armature.
The range is ℃.
他の方法は浸硫処理を行なうものである。この浸硫処理
は、塩化物を混合した中性塩浴またはシアン化物を主成
分とする還元性塩浴中に硫化物を加えた塩浴にヨークコ
アおよびアーマチュアを浸漬して、その表面に浸硫層を
形成するものである。Another method involves sulfurization. This sulfurization treatment involves immersing the yoke core and armature in a neutral salt bath containing chloride or a salt bath containing sulfide in a reducing salt bath containing cyanide as the main component. It forms a layer.
この浸硫層すなわち表面被膜はすベシ性が良く摩擦係数
が小さいものである。なお、処理温度はヨークコアおよ
びアーマチーアの磁気性を損なわないようにするために
２００℃以下とする。この場合にはＫＣＮＳとＮａ２Ｓ
２Ｏ５とからなる塩浴により処理を行なう。This sulfurized layer, ie, the surface coating, has good toughness and a small coefficient of friction. Note that the processing temperature is set at 200° C. or lower so as not to impair the magnetic properties of the yoke core and the armature. In this case, KCNS and Na2S
The treatment is carried out using a salt bath consisting of 2O5.
その他にヨークコア１とアーマチュア２の表面に四ふり
化エチレン樹・脂からなる被膜を形成する方法もめる。In addition, a method of forming a coating made of tetrafluoroethylene resin on the surfaces of the yoke core 1 and armature 2 is also proposed.
なお、表面被膜が実際に必要な箇所は、ヨークコア１で
はヨーク部ＩＢの端面、アーマチュア２では前記ヨーク
部ＩＢの端面に接触する部分であるが、このように部分
的に表面被膜を形成することは手間を要し能率的でない
ために、製品全体に表面被膜を形成するようにしている
。Note that the areas where the surface coating is actually required are the end face of the yoke part IB in the yoke core 1, and the part that contacts the end face of the yoke part IB in the armature 2, but it is not possible to form the surface film partially in this way. Since this method is laborious and inefficient, a surface coating is formed on the entire product.
また、ヨーク；ア１においてアーマチュア２が接触する
ヨーク部ＩＢの端面には、二硫化モリブデン（Ｍｏ８２
）の粒子を分散させたグリースが塗布してあり、ヨーク
コア１のヨーク部ＩＢとアーマチ、ア２とが接触する部
分の潤滑を行なっている。Further, molybdenum disulfide (Mo82
) is coated with a grease containing dispersed particles, and lubricates the portion where the yoke part IB of the yoke core 1 and the armature A2 come into contact.
このように構成した印字ヘッドにおいては゛、ヨークコ
ア１におけるヨーク部ＩＢと、このヨーク部ＩＢに支持
されたアーマチーア２における該端面と接触する部分Ｓ
の表面には、摩擦係数が小さく潤滑性に富んだ表面被膜
が形成しである。すなわち、ヨーク部ＩＢとアーマチュ
ア２とが接触する接触部の摩擦抵抗を減少させ耐摩擦性
を向上させである。In the print head configured in this way, there are a yoke portion IB in the yoke core 1 and a portion S of the armature 2 supported by the yoke portion IB that contacts the end surface.
A surface coating with a low coefficient of friction and rich lubricity is formed on the surface of the material. That is, the frictional resistance at the contact portion where the yoke portion IB and the armature 2 come into contact is reduced and the friction resistance is improved.
そして、印字動作を行なうためにアーマチュア２がヨー
クコア１の吸着部ＩＡに吸引されてヨーク部ＩＢｔ−支
点として回動する時に、アーマチュア２に形成した表面
膜がヨー身部ＩＢの端面に形成した表面被膜と摺接する
。この場合、両方の表面被膜は良好ななすべ９性と潤滑
性を有しているので摺接による摩耗が大変少なく長期に
わたシ摩耗を抑制できる。すなわち、ヨークコア１のヨ
ーク部ＩＢとアーマチュア２は印字動作による摩耗を長
期にわたりて抑制しヨークコア１とアーマチ、ア２の耐
久性を向上することができ、印字動作の高速化という条
件下でヨークコア１とアーマチュア２が優れた耐久性を
発揮できる。Then, when the armature 2 is attracted by the suction part IA of the yoke core 1 and rotates as a fulcrum on the yoke part IBt in order to perform a printing operation, the surface film formed on the armature 2 absorbs the surface formed on the end face of the yaw body part IB. Slides into contact with the coating. In this case, since both surface coatings have good smoothness and lubricity, wear due to sliding contact is very small and wear can be suppressed over a long period of time. In other words, the yoke portion IB and armature 2 of the yoke core 1 can suppress wear caused by printing operations over a long period of time and improve the durability of the yoke core 1, armature, and armature A2. And Armature 2 can demonstrate excellent durability.
また、ヨークｄｌＢとアーマチュア２との接触部はグリ
ースにより潤滑して両部品の摩耗を一層抑制することが
できる。しかし、グリースに固体潤滑剤とし、て分散し
ているＭｏ Ｓ ２の粒子がグリースの油切れをなくし
て潤滑性を向上させることができる。Further, the contact portion between the yoke dlB and the armature 2 can be lubricated with grease to further suppress wear of both parts. However, Mo S 2 particles dispersed in the grease as a solid lubricant can prevent the grease from running out of oil and improve the lubricity.
ここで、本発明による印字ヘッドの具体的な一例につい
て説明する。Here, a specific example of the print head according to the present invention will be described.
まず、アトマイズ鉄粉とＦｅ−８ｔ ３〜７重量−合金
粉とを混合して原料粉末を得、この原料粉末を成形圧７
トン、に罵３で加圧した後に１１８５℃×２時間の条件
で焼結してヨークコアを得た。また、Ｆｅ−１〜２．５
重ｉ％のけい素鋼板によりアーマチーアを形成した。First, a raw material powder is obtained by mixing atomized iron powder and Fe-8t 3-7 weight alloy powder, and this raw material powder is pressed under a molding pressure of 7
After pressurizing at 3 tons, the material was sintered at 1185° C. for 2 hours to obtain a yoke core. Also, Fe-1 to 2.5
The armature was formed from a silicon steel plate with a weight of i%.
そして、前記ヨークコアとアーマチュアに対して脱脂お
よび酸洗いを行ない、その後に処理温度１２０℃でシん
酸塩被膜処理を施して表面Ｋ Ｍｎ系のシん酸塩被膜を
形成した。このヨークコアとアーマチュアを用いて印字
ヘッドを組立て、この印字ヘッド上ドツトインパクト式
プリンタに装着して印字速度４５ ｃｐｓで印字を行な
った精米、１０７回打刻後にヨークコアとアーマチュア
には何ら異常が認められなかった。Then, the yoke core and armature were degreased and pickled, and then subjected to sicate coating treatment at a treatment temperature of 120° C. to form a KMn-based sinate coating on the surface. A print head was assembled using this yoke core and armature, and the print head was attached to a dot impact printer and printed at a printing speed of 45 cps. After 107 impressions, no abnormalities were found in the yoke core and armature. There wasn't.
また、前記ヨークコアとアーマチュアに処理温度１５０
℃で浸硫処理を施して表面にＴｅＳからなる被膜を形成
した。このヨークコアとアーマチュアを用いた印字ヘッ
ドをドツトイン・ぐクト式プリンタに組込んで印字速度
４５ ｃｐｓで印字を行なった結果、１０回打刻後にコ
ークコアとアーマチ。In addition, the yoke core and armature are treated at a temperature of 150°C.
A film made of TeS was formed on the surface by sulfurization at .degree. When a print head using this yoke core and armature was installed in a dot-in-place printer and printed at a printing speed of 45 cps, the cork core and armature were removed after 10 impressions.
アに何ら異常が認められなかった。No abnormality was observed in A.
嘔らに、表面被膜処理を施嘔ないヨークコアとアーマチ
ュアを用いた印字ヘッドをドツトインパクト式プリンタ
に装着して印字速度４０ ｃｐｓで印字を行なった結果
、１０回打刻後にヨークコアとアーマチュアが摩耗して
印字が行なえなくなった。Furthermore, when a print head using a yoke core and armature without surface coating treatment was attached to a dot impact printer and printing was performed at a printing speed of 40 cps, the yoke core and armature were worn out after 10 impressions. Printing is no longer possible.
従って、本発明により表面被膜を形成したヨークコアと
アーマチュアを用いた印字ヘッドは、従来の印字ヘッド
に比して耐久性が大変優れていることが判る。Therefore, it can be seen that the print head using the yoke core and armature on which the surface coating is formed according to the present invention has much better durability than the conventional print head.
なお、前述した実施例ではヨークヘッドとアーマチュア
の両方に弐面被膜を形成しているが、これに限定されず
少なくともヨークコアおよびアーマチュアのいずれか一
方に表面被膜を形成するようにしても良い。この場合も
表面被膜の存在によジョークコアとアーマチーアの摩耗
を抑制することができる。In the above-described embodiment, the two-side coating is formed on both the yoke head and the armature, but the present invention is not limited to this, and a surface coating may be formed on at least one of the yoke core and the armature. In this case as well, wear of the jaw core and armature can be suppressed by the presence of the surface coating.
［発明の効果］
以上説明したように本発明の印字ヘッドによれば、ヨー
クコアとアーマチュアに潤滑生を有する物質からなる狭
面破膜を形成しであるので、ヨークコアとアーマチーア
の接触部における耐摩耗性を高めて摩耗を抑制すること
によジョークコアとアーマチュアの耐久性を向上させ、
印字速度の高速化に対処することができる。[Effects of the Invention] As explained above, according to the print head of the present invention, a narrow-sided broken film made of a lubricating material is formed on the yoke core and the armature, so that wear resistance is achieved at the contact portion between the yoke core and the armature. Improves the durability of the jaw core and armature by increasing durability and suppressing wear.
It is possible to cope with increased printing speed.
第１図および第２図は印字ヘッドを示す正面図および横
断面図である。゛
１・・・ヨークコア、ＪＡ・・・吸着部、ＩＢ・・・ヨ
ーク部、２・・・アーマチュア、３・・・励磁コイル。
出願人代理人 弁理士 鈴 江 武 彦１ｇ１図
第２図FIGS. 1 and 2 are a front view and a cross-sectional view of the print head.゛1... Yoke core, JA... Adsorption part, IB... Yoke part, 2... Armature, 3... Excitation coil. Applicant's agent Patent attorney Takehiko Suzue 1g1 Figure 2
Claims (6)
され該ヨークコアの吸引力により揺動して印字ワイヤを
動作させるアーマチュアとを具備し、前記ヨークおよび
前記アーマチュアの少なくとも一方に、潤滑性を有する
物質からなる表面被膜を形成したことを特徴とする印字
ヘッド。(1) It includes a yoke core and an armature that is swingably supported by the yoke core and swings by the suction force of the yoke core to operate the printing wire, and at least one of the yoke and the armature has lubricity. A print head characterized by forming a surface film made of a substance.
である特許請求の範囲第１項に記載の印字ヘッド。(2) The print head according to claim 1, wherein the surface coating is formed by phosphate coating treatment.
許請求の範囲第１項に記載の印字ヘッド。(3) The print head according to claim 1, wherein the surface coating is formed by sulfurization treatment.
鉄からなる焼結体からなる特許請求の範囲第１項に記載
の印字ヘッド。(4) The print head according to claim 1, wherein the yoke core is made of a sintered body consisting of 3 to 7% by weight silicon and the remainder substantially iron.
い素鋼からなるものである特許請求の範囲第１項に記載
の印字ヘッド。(5) The print head according to claim 1, wherein the armature is made of silicon steel containing 1 to 2.5% by weight of silicon.
リブデンの粒子を分散したグリースを介在させてなる特
許請求の範囲第１項に記載の印字ヘッド。(6) The print head according to claim 1, wherein grease in which molybdenum disulfide particles are dispersed is interposed in the contact portion between the yoke core and the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15467386A JPS639553A (en) | 1986-07-01 | 1986-07-01 | Printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15467386A JPS639553A (en) | 1986-07-01 | 1986-07-01 | Printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS639553A true JPS639553A (en) | 1988-01-16 |
Family
ID=15589401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15467386A Pending JPS639553A (en) | 1986-07-01 | 1986-07-01 | Printing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639553A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0327953A (en) * | 1989-06-26 | 1991-02-06 | Nec Corp | Printing head |
| JPH0336042A (en) * | 1989-07-03 | 1991-02-15 | Fujitsu Ltd | Moving coil type printing head |
-
1986
- 1986-07-01 JP JP15467386A patent/JPS639553A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0327953A (en) * | 1989-06-26 | 1991-02-06 | Nec Corp | Printing head |
| JPH0336042A (en) * | 1989-07-03 | 1991-02-15 | Fujitsu Ltd | Moving coil type printing head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3733539B2 (en) | Slide bearing material | |
| EP0681039B1 (en) | A titanium alloy engine valve shaft structure | |
| EP1634975B8 (en) | Hot dip alloyed zinc coated steel sheet and method for production thereof | |
| JPH0483914A (en) | Material for sliding bearing | |
| EP3106533A1 (en) | Sliding mechanism | |
| US4877696A (en) | Composite sliding structure | |
| JPS639553A (en) | Printing head | |
| US20190301528A1 (en) | Sliding member and production method therefor | |
| JP2004100645A (en) | Cylinder block | |
| JP3061186B1 (en) | Continuous casting mold and method of manufacturing the same | |
| JPS61124581A (en) | Scuffing-resistant cam/rocker arm pair | |
| EP0679736B1 (en) | Improvement of properties of the surface of a titanium alloy engine valve | |
| JPH0499834A (en) | Sliding material | |
| SI21803A (en) | Surface coating of loaded machinery part foreseen for application in limit lubrication conditions | |
| US20020151398A1 (en) | Light metal pulleys having improved wear resistance | |
| JPS61221394A (en) | Electroplating method | |
| JP2701532B2 (en) | Sliding member | |
| JPH01168856A (en) | Method for case-hardening steel | |
| JP3664100B2 (en) | Aluminum pulley | |
| JPS62127443A (en) | Ni-base casting alloy for electrifying roll | |
| JPH08259244A (en) | Glass forming mold | |
| JPH0397897A (en) | Eutectoid plating method of lead or antimony | |
| JPH11287326A (en) | Piston ring for aluminum cylinder | |
| JP2001270181A (en) | Carriage guide shaft for printer | |
| JP2664235B2 (en) | Rolling bearing |