JPH0226754A - Spring charge type dot head - Google Patents
Spring charge type dot headInfo
- Publication number
- JPH0226754A JPH0226754A JP17790588A JP17790588A JPH0226754A JP H0226754 A JPH0226754 A JP H0226754A JP 17790588 A JP17790588 A JP 17790588A JP 17790588 A JP17790588 A JP 17790588A JP H0226754 A JPH0226754 A JP H0226754A
- Authority
- JP
- Japan
- Prior art keywords
- leaf spring
- yoke plate
- spring
- armature
- fixed
- 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
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000005255 carburizing Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、フンピー−ター周辺端末用プリンターなどの
印字装置であるワイヤートッドヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wire tod head which is a printing device such as a printer for a computer peripheral terminal.
［従来の技術］
従来、第３図に示すように、ヨーク板３１と板バネ６２
との係合部分で、ヨーク板隅部が板バネの作動応力によ
って変形、摩耗するのを防ぐために、高硬度スペーサー
３３を具備する方法が知られていた。[Prior Art] Conventionally, as shown in FIG. 3, a yoke plate 31 and a plate spring 62
In order to prevent the corners of the yoke plate from being deformed and worn out due to the operating stress of the leaf spring, a method is known in which a high hardness spacer 33 is provided at the engaging portion of the yoke plate.
また、板バネの横幅を広くしたり、板厚を薄くする方法
によりヨーク板隅部にかがる作動応力を低減する方法が
知られていた
［発明が解決しようとする課題］
しかし、前述の従来方法で高硬度スペーサー６６を設け
ている場合は、高硬度スペーサー６５の形状精度や変形
、ソリ、さらに取付は時の位置ズレにより板バネ５２の
自由長が個々に変わってしまい、板バネの歪みエネルギ
ーのバラツキが大きくなって印字不良になりやすいとい
う欠点を有していた。また、板バネの横幅を拡げたり板
厚を薄くする方法は板バネ形状が大型化してしまうこと
によりドツトヘッドが小型軽量化できないという欠点を
有していた。そこで、本発明は従来の間諜点を解決する
もので、印字品質が優れ、小型軽量で長寿命なバネチャ
ージ式ドツトヘッドを安価に得ろことを目的としている
。In addition, there is a known method of reducing the operating stress applied to the corners of the yoke plate by increasing the width of the plate spring or reducing the plate thickness.[Problem to be Solved by the Invention] When the high-hardness spacer 66 is provided using the conventional method, the free length of the leaf spring 52 changes individually due to the shape accuracy, deformation, and warpage of the high-hardness spacer 65, and also due to positional deviation during installation. This method has the disadvantage that the variation in strain energy becomes large, which tends to cause printing defects. Furthermore, the method of widening the width of the leaf spring or reducing the thickness of the leaf spring has the disadvantage that the shape of the leaf spring becomes large and the dot head cannot be made smaller and lighter. SUMMARY OF THE INVENTION The present invention aims to solve the problems of the prior art and to provide a spring-charged dot head that has excellent print quality, is compact, lightweight, and has a long service life at a low cost.
［課題を解決するための手段］
上記間部点を解決するために、本発明のスプリングチャ
ージ式ドッ１ヘッドは、板バネの自由端に固着したアー
マチャーを永久磁石の磁力により前記板バネを変形させ
て、コア端面に吸着させた保持状態から、電磁フィルに
電流を流すことにより、ｉＩＩ記永久磁石の磁力を打ち
消して、前記板バネに蓄えられていた歪みエネルギーに
より、前記アーマチャーを開放して、前記アーマチャー
に固着したワイヤーを選択的に突出させて、ドツトマト
リクス印字を行うスプリングチャージ式ドツトヘッドに
おいて、ヨーク板の表面に、Ｈｖ＝３ＤＯ〜７００、深
さ０．０５〜０．５Ｂの表面硬化層を設けたことを特徴
とする。[Means for Solving the Problems] In order to solve the above problem, the spring-charged dot head of the present invention deforms the armature fixed to the free end of the leaf spring by the magnetic force of a permanent magnet. Then, from the held state in which the core is attracted to the end surface, a current is applied to the electromagnetic filter to cancel the magnetic force of the permanent magnet described in III above, and the armature is opened by the strain energy stored in the leaf spring. In a spring-charged dot head that performs dot matrix printing by selectively protruding the wire fixed to the armature, the surface of the yoke plate is hardened to a depth of 0.05 to 0.5B with Hv=3DO to 700. It is characterized by having layers.
［実施例］ 以下に本発明の実施例を図面に基づいて説明する。[Example] Embodiments of the present invention will be described below based on the drawings.
第１図に示す実施例において、ワイヤー３はレバー４を
介してアーマチャー５に固着され、さらにアーマチャー
５は板バネ２と一体に固着されている。この板バネ２は
ヨーク板１に固着されている。第１図の下部に示す状態
が、永久磁石乙の磁力によりアーマチャー５がコア７の
端面に吸着され、板バネ２を変形させて歪みエネルギー
を蓄えた保持状態である。第１図の上部に示す状態が、
電磁コイル８に電流を流し永久磁石６の磁力を打ち消し
て、板バネ２に蓄えられた歪みエネルギーによりアーマ
チャー５を解放して、ワイヤー３の先端がリボン９を介
して印字紙１０にドツトを形成する印字状態である。こ
こで、ヨーク板１０表面には、高度Ｈｖ ＝ ５００±
５０、深さ０．０５−０−１ ｒａｎの浸炭硬化処理α
がなされており、本発明の特徴的部分をなすものである
。In the embodiment shown in FIG. 1, the wire 3 is fixed to an armature 5 via a lever 4, and the armature 5 is fixed integrally with the leaf spring 2. This leaf spring 2 is fixed to the yoke plate 1. The state shown in the lower part of FIG. 1 is a holding state in which the armature 5 is attracted to the end face of the core 7 by the magnetic force of the permanent magnet B, deforming the leaf spring 2 and storing strain energy. The state shown at the top of Figure 1 is
A current is applied to the electromagnetic coil 8 to cancel the magnetic force of the permanent magnet 6, and the armature 5 is released by the strain energy stored in the leaf spring 2, so that the tip of the wire 3 forms a dot on the printing paper 10 via the ribbon 9. The printing condition is as follows. Here, the surface of the yoke plate 10 has an altitude Hv = 500±
50, carburization hardening treatment α of depth 0.05-0-1 ran
This is a characteristic part of the present invention.
第１図の下部に示す保持状態では、板バネ２はヨーク板
１の隅部すを支点として変形しているため、この部分に
作動応力が集中しているが、ヨーク板２０表面には浸炭
硬化処理αがなされているため変形、摩耗が起きない。In the held state shown in the lower part of FIG. 1, the leaf spring 2 is deformed using the corner of the yoke plate 1 as a fulcrum, so the operating stress is concentrated in this part, but the surface of the yoke plate 20 is carburized. Hardening treatment α prevents deformation and wear.
このとき浸炭層の硬度は仮バネ２と同等あるいはそれ以
下なので板バネ２が１貿耗することはない。このため長
期にわたり板バネ２の歪みエネルギーの安定化が計れ印
字品質を低下させることがない。At this time, since the hardness of the carburized layer is equal to or lower than that of the temporary spring 2, the leaf spring 2 does not wear out. Therefore, the strain energy of the leaf spring 2 is stabilized over a long period of time, and printing quality is not degraded.
また、表面を硬化させることによりヨーク板の剛性が大
幅にアップするので組立時にこの部品の変形による不良
が低減する。Furthermore, by hardening the surface, the rigidity of the yoke plate is greatly increased, which reduces defects due to deformation of this part during assembly.
同時に従来、変形、磨耗防止用のために使用していた高
硬度スペーサーを必要としないために、製造コストを大
幅に低減できる。At the same time, manufacturing costs can be significantly reduced because there is no need for high-hardness spacers, which were conventionally used to prevent deformation and wear.
さらに、板バネの横幅を拡げたり、板厚を薄くしてバネ
力をダウンさせてヨーク板隅部の変形。Furthermore, the corners of the yoke plate can be deformed by increasing the width of the plate spring or reducing the plate thickness to reduce the spring force.
磨耗防止を行う必要がないため、板バネ２のバネ力の強
化、小型化が可能となりドツトヘッドの小型軽量、高印
字スピード化が可能になる。Since there is no need to prevent wear, the spring force of the leaf spring 2 can be strengthened and the dot head can be made smaller, making it possible to make the dot head smaller and lighter and to increase printing speed.
第２図は、浸炭硬化処理を行ったヨーク板の上下面を研
磨した後、板バネ２２と固着しているがヨーク板２１の
隅部、内外周部には浸炭硬化部Ｃが残っているので、先
の実施例と同様の効果が得られる。Figure 2 shows that after polishing the upper and lower surfaces of a yoke plate that has been carburized and hardened, it is firmly attached to the leaf spring 22, but carburized and hardened parts C remain at the corners and inner and outer circumferences of the yoke plate 21. Therefore, the same effects as in the previous embodiment can be obtained.
また、表面硬化処理方法として浸炭硬化処理の池に、窒
化硬化処理、無電ＩＩＫニッケルメッキ処理セラミック
コーティング処理、炭化チタン化学蒸着処理によって行
っても同様の効果が得られろ。Further, the same effect can be obtained by performing a nitriding hardening treatment, an electroless IIK nickel plating treatment, a ceramic coating treatment, or a titanium carbide chemical vapor deposition treatment in addition to the carburizing treatment as a surface hardening treatment method.
［発明の効果コ
本発明は、以上説明したように、ヨーク板の表面に高硬
度層を設けることにより、板バネとの係合部分の変形、
磨耗を防ぐことができ、小型軽量高印字スピードで、印
字品質と耐久性に優れたスプリングチャージヘッドを安
価に得ることができる効果がある。[Effects of the Invention] As explained above, the present invention provides a high hardness layer on the surface of the yoke plate to reduce the deformation of the engagement portion with the plate spring.
This has the effect of preventing wear and making it possible to obtain a spring-charged head that is small, lightweight, high printing speed, and has excellent printing quality and durability at a low cost.
第１図は、本発明の実施例を示す断面図。
第２図は、他の実施例を示す断面図。
第６図は、従来方法を示す断面図である。
１ ２１・・・・・・・・ヨーク板
２．２２・・・・・・・・・板バネ
ろ ・・・・・・・・ワイヤー
４ ・・・・・・・・レバー
５ ・・・・・・・・・プランジャー６ ・・
・・・・・・・永久磁石
７ ・・・・・・・・・コ ア
８ ・・・・・・・・・′ｔｉコイル９ ・
・・・・・・・・リボン
１０ ・・・・・・・・・印字紙
Ｑ、Ｃ・・・・・・・・・浸炭硬化層
ｂ ・・・・・・・・・隅部（板バネ変形支点部）
第
図
３−７枚
４１９−ノく峯
ワイヤー
レノぐ−FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a sectional view showing another embodiment. FIG. 6 is a sectional view showing a conventional method. 1 21...Yoke plate 2.22...Plate spring roller...Wire 4...Lever 5... ...Plunger 6...
......Permanent magnet 7 ......Core 8 ......'ti coil 9 ・
...... Ribbon 10 ...... Print paper Q, C ...... Carburized hardened layer b ...... Corner (plate Spring deformation fulcrum)
Figure 3-7 419-Nokmine Wire Renogu-
Claims (1)
力により前記板バネを変形させて、コア端面に吸着させ
た保持状態から、電磁コイルに電流を流すことにより、
前記永久磁石の磁力を打ち消して、前記板バネに蓄えら
れていた歪みエネルギーにより、前記アーマチャーを開
放して、前記アーマチャーに固着したワイヤーを選択的
に突出させて、ドットマトリクス印字を行うスプリング
チャージ式ドットヘッドにおいて、ヨーク板の表面に、
Ｈｖ＝３００〜７００、深さ０．０５〜０．５ｍｍの表
面硬化層を設けたことを特徴とするスプリングチャージ
式ドットヘッド。By deforming the armature fixed to the free end of the leaf spring by the magnetic force of a permanent magnet, and applying a current to the electromagnetic coil from the state in which the leaf spring is held attracted to the end face of the core,
A spring-charged type that performs dot matrix printing by canceling the magnetic force of the permanent magnet and using the strain energy stored in the leaf spring to open the armature and selectively protrude the wire fixed to the armature. In the dot head, on the surface of the yoke plate,
A spring-charged dot head characterized by having a surface hardening layer with Hv=300-700 and a depth of 0.05-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17790588A JPH0226754A (en) | 1988-07-15 | 1988-07-15 | Spring charge type dot head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17790588A JPH0226754A (en) | 1988-07-15 | 1988-07-15 | Spring charge type dot head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0226754A true JPH0226754A (en) | 1990-01-29 |
Family
ID=16039111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17790588A Pending JPH0226754A (en) | 1988-07-15 | 1988-07-15 | Spring charge type dot head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226754A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203870A (en) * | 1990-06-28 | 1993-04-20 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus for detecting abnormal state of evaporative emission-control system |
| US5251477A (en) * | 1990-02-26 | 1993-10-12 | Nippondenso Co., Ltd. | Self-diagnosis apparatus in a system for prevention of scattering of fuel evaporation gas |
| US5317909A (en) * | 1991-04-02 | 1994-06-07 | Nippondenso Co., Ltd. | Abnormality detecting apparatus for use in fuel transpiration prevention systems |
| US5347971A (en) * | 1992-06-08 | 1994-09-20 | Nippondenso Co., Ltd. | Apparatus for monitoring air leakage into fuel supply system for internal combustion engine |
| US5363828A (en) * | 1992-07-22 | 1994-11-15 | Aisan Kogyo Kabushiki Kaisha | Fuel vapor processing apparatus of internal combustion engine |
| US5447141A (en) * | 1993-11-09 | 1995-09-05 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative emission control system for internal combustion engines |
| US5570674A (en) * | 1994-11-25 | 1996-11-05 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative emission control system for internal combustion engines |
-
1988
- 1988-07-15 JP JP17790588A patent/JPH0226754A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5251477A (en) * | 1990-02-26 | 1993-10-12 | Nippondenso Co., Ltd. | Self-diagnosis apparatus in a system for prevention of scattering of fuel evaporation gas |
| US5203870A (en) * | 1990-06-28 | 1993-04-20 | Toyota Jidosha Kabushiki Kaisha | Method and apparatus for detecting abnormal state of evaporative emission-control system |
| US5317909A (en) * | 1991-04-02 | 1994-06-07 | Nippondenso Co., Ltd. | Abnormality detecting apparatus for use in fuel transpiration prevention systems |
| US5347971A (en) * | 1992-06-08 | 1994-09-20 | Nippondenso Co., Ltd. | Apparatus for monitoring air leakage into fuel supply system for internal combustion engine |
| US5363828A (en) * | 1992-07-22 | 1994-11-15 | Aisan Kogyo Kabushiki Kaisha | Fuel vapor processing apparatus of internal combustion engine |
| US5447141A (en) * | 1993-11-09 | 1995-09-05 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative emission control system for internal combustion engines |
| US5570674A (en) * | 1994-11-25 | 1996-11-05 | Honda Giken Kogyo Kabushiki Kaisha | Evaporative emission control system for internal combustion engines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR880001139B1 (en) | Print head for a dot matrix printer | |
| JPH0226754A (en) | Spring charge type dot head | |
| JPS6335430B2 (en) | ||
| JP2802293B2 (en) | Method of manufacturing armature for print head | |
| JPH04105945A (en) | Printing head for wire dot type printer | |
| JPH0431061A (en) | Impact head | |
| KR880001138B1 (en) | Print head | |
| JPS58210308A (en) | Weight reducing construction for valve moving tappet | |
| JPS60154084A (en) | Printing head and assembling method thereof | |
| JPH043309B2 (en) | ||
| US4771689A (en) | Unitary spring armature for a dot matrix printer | |
| JPS5813013B2 (en) | Swivel armature electromagnet | |
| JPH07195716A (en) | Production of printing head | |
| JPH0687223A (en) | Wire dot head | |
| JPH0742741Y2 (en) | Print head of dot line printer | |
| JPS6067168A (en) | Printing head | |
| JPH06286168A (en) | Printing head | |
| JPH0869915A (en) | Electromagnetic solenoid | |
| JP2822415B2 (en) | Impact dot head | |
| JPS63280655A (en) | Ink dot head | |
| JPS639909A (en) | Electromagnet | |
| JPS6147271A (en) | Printing head | |
| JPS61205147A (en) | Printing head for dot printer | |
| JPS63314815A (en) | Magnetic fixing device | |
| JPH0524211A (en) | Impact dot head |