JPH01229653A - Electrode head - Google Patents
Electrode headInfo
- Publication number
- JPH01229653A JPH01229653A JP5662288A JP5662288A JPH01229653A JP H01229653 A JPH01229653 A JP H01229653A JP 5662288 A JP5662288 A JP 5662288A JP 5662288 A JP5662288 A JP 5662288A JP H01229653 A JPH01229653 A JP H01229653A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- support
- electrode needle
- electrode head
- needle
- 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
- 239000000463 material Substances 0.000 claims abstract description 21
- 229910052582 BN Inorganic materials 0.000 claims abstract description 13
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 abstract description 15
- 229910052751 metal Inorganic materials 0.000 abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052802 copper Inorganic materials 0.000 abstract description 9
- 239000010949 copper Substances 0.000 abstract description 9
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 16
- 239000010409 thin film Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004904 shortening 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
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電気信号を記録体上に記録する電極ヘッドに
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrode head for recording electrical signals on a recording medium.
従来の技術
近年、オフィスオートメーションにより種々の端末機が
要求されている。中でも、電気信号を可視像に変換する
記録装置、いわゆるプリンタの需要は大きなものがあり
、従来から種々の方式による記録装置が作られてきた。2. Description of the Related Art In recent years, office automation has required a variety of terminals. Among these, there is a great demand for recording devices that convert electrical signals into visible images, so-called printers, and recording devices using various methods have been produced in the past.
放電破壊記録紙を用いた記録装置は、金属薄膜層２黒色
層、基紙からなる放電破壊記録紙の金属薄膜層に電圧を
印加した電極を接触させ、接触部分を加熱あるいは放電
破壊により金属薄膜層を取り除き、下地の黒色層を露出
させて記録を行うものである。従来、放電記録ヘッドに
は電極針を固定する支持材として樹脂を用いることが多
かったが、樹脂を用いる場合は記録時に発生するゴミの
付着による電極間の短絡を防ぐため太くて硬い材料の電
極針を支持体から露出させる必要があり、高密度の放電
記録ヘッドは困難であった。そこで、高密度の記録を行
うために六方晶窒化硼素焼結体を電極針の支持体として
用いた電極ヘッド（特願昭５８−１７８５３７号公＠）
があり、高解像度の印字品質が得られるようになった。A recording device using electrical discharge breakdown recording paper consists of a metal thin film layer, two black layers, and a base paper, in which a voltage-applied electrode is brought into contact with the metallic thin film layer of the electrical discharge breakdown recording paper, and the contact portion is heated or electrical discharge breakdown is performed to destroy the metal thin film. Recording is performed by removing the layer and exposing the underlying black layer. Conventionally, resin has often been used as a support material for fixing electrode needles in discharge recording heads, but when resin is used, electrodes made of thick and hard material are used to prevent short circuits between electrodes due to adhesion of dust generated during recording. The needle must be exposed from the support, making it difficult to produce a high-density discharge recording head. Therefore, in order to perform high-density recording, an electrode head using a hexagonal boron nitride sintered body as a support for the electrode needle (Japanese Patent Application No. 58-178537@)
Now, high-resolution printing quality can be obtained.
以下図面を参照しながら、上述した従来の電極ヘッドの
一例について説明する。An example of the conventional electrode head mentioned above will be described below with reference to the drawings.
第４図は従来の電極ヘッドの斜視図である。第４図にお
いて、１は電極針（たとえば、電解鋼）で、２ａ、２ｂ
は六方晶窒化硼素を含有する支持体（たとえば、電気化
学工業株式会社製のデンカボロンナイトライド焼結体）
である。電極針１は、六方晶窒化硼素を含有する支持体
２ａ、２ｂによって挟持されている。FIG. 4 is a perspective view of a conventional electrode head. In Fig. 4, 1 is an electrode needle (for example, electrolytic steel), 2a, 2b
is a support containing hexagonal boron nitride (for example, Denka boron nitride sintered body manufactured by Denki Kagaku Kogyo Co., Ltd.)
It is. The electrode needle 1 is held between supports 2a and 2b containing hexagonal boron nitride.
第５図は使用状態を示したものであり、電気信号源２１
から電気信号が電極針ｌとアース電極２２を通じ放電破
壊記録紙２３上の金属薄膜層２４を放電破壊により除去
すると同時に放電による電極針１の摩耗に対応して、前
記電極針１を支持する六方晶窒化硼素を含有する支持体
２ａ。FIG. 5 shows the state of use, in which the electric signal source 21
An electric signal passes through the electrode needle l and the ground electrode 22 to remove the metal thin film layer 24 on the discharge breakdown recording paper 23 by discharge breakdown, and at the same time, in response to the wear of the electrode needle 1 due to the discharge, the hexagonal electrode that supports the electrode needle 1 is removed. Support 2a containing crystalline boron nitride.
２ｂを削りながら下地の黒色層２５を露出させ放電破壊
記録紙２３に印字、記録を行うものである。Printing and recording is performed on the discharge breakdown recording paper 23 by exposing the underlying black layer 25 while scraping the surface 2b.
前記六方晶系窒化硼素を含有する支持体２ａ。A support 2a containing the hexagonal boron nitride.
２ｂは摩耗容易な性質を有するゆえに、常に電極針１を
突出する形で摩耗し、そのため放電破壊記録紙２３との
接触が良好に保たれるとともに電極針１の表面に付着す
る放電カスを除去する作用が得られ良好な記録特性を維
持することができる。Since electrode needle 2b has a property of being easily abraded, it is constantly worn in such a way that the electrode needle 1 protrudes, thereby maintaining good contact with the discharge breakdown recording paper 23 and removing discharge debris adhering to the surface of the electrode needle 1. As a result, good recording characteristics can be maintained.
しかしながらこの場合、プラテン２６の圧力の大半を電
極針１で受けることになるため、電極ヘッドの摩耗速度
は電極針１となる電解銅の断面積に依存する。第６図は
電極ヘッド全面に一定の圧力が加わった場合、電極針１
の断面積によって電極ヘッドの摩耗速度が変化する関係
を示したものである。第６図に示すように電極針ｌの断
面積が小さい、すなわち繊細になる程、著しく摩耗速度
は大きくなっていく。However, in this case, since most of the pressure of the platen 26 is received by the electrode needles 1, the wear rate of the electrode head depends on the cross-sectional area of the electrolytic copper that becomes the electrode needles 1. Figure 6 shows that when a constant pressure is applied to the entire surface of the electrode head, the electrode needle 1
This figure shows the relationship in which the wear rate of the electrode head changes depending on the cross-sectional area of the electrode head. As shown in FIG. 6, the smaller the cross-sectional area of the electrode needle l, that is, the more delicate it becomes, the faster the wear rate becomes.
発明が解決しようとする課題
しかしながら上記のようなｔＦｉｃヘッドの構成では、
高解像度用として電極針が細くなるにつれて電極ヘッド
の摩耗が著しく大きくなり、電極ヘッドの寿命が短縮し
不経済になるという問題が発生する８
課題を解決するための手段
本発明は上記課題に迄み、電極針以外に電極針と同一の
金属材料を摩耗速度調整材として支持体中に埋設あるい
は、支持体の主面に接着する構成とするものである。Problems to be Solved by the Invention However, in the configuration of the tFic head as described above,
As electrode needles become thinner for high-resolution applications, wear on the electrode head increases significantly, shortening the life of the electrode head and making it uneconomical.8 Means for Solving the Problems The present invention achieves the above problems. In addition to the electrode needles, the same metal material as the electrode needles is embedded in the support or adhered to the main surface of the support as a wear rate adjusting material.
作用
本発明は上記した手段によって、放電破壊記録紙と接触
走向する電極ヘッド全面に露出する金属材料の断面積が
大きくなり、記録特性を損なうことなく電極ヘッドの長
寿命化を図ることができる。According to the present invention, the above-described means increases the cross-sectional area of the metal material exposed over the entire surface of the electrode head that runs in contact with the discharge rupture recording paper, thereby making it possible to extend the life of the electrode head without impairing the recording characteristics.
実施例
以下本発明の電極ヘッドの一実施例について、図面を参
照しながら説明する。EXAMPLE Hereinafter, an example of the electrode head of the present invention will be described with reference to the drawings.
実施例１
第１図において電極針１は電解鋼をストライプ状にエツ
チングしたもので８本／ｉの密度で配列し、六方晶系窒
化硼素を含有する支持体２ａ、２ｂにて挟持しているが
、さらに前記電極針ｌの列の近傍に平行に摩耗速度調整
材として金属板１）を配設し、前記金ｒＸ板１）も六方
晶系窒化硼素を含有する支持体２ｃにて挾持したもので
ある。前記金属板１）には前記電極針１と同じ電解銅を
用い、その厚さも同一とした。金属板１）には電気的な
接続はなされていない、この場合、電極ヘッドの先端部
に露出する電解鋼材は電極針のみの場合と比較して３倍
の断面積となる。第２図は電極針１および金属板１）と
放電破壊記録紙２３との接触状態を示したものであるが
、プラテン２６の圧力を電極針１および金属板１）で支
えていることを示すものである。放電破壊記録紙には市
販されている放電記録紙（たとえば、株式会社巴川製紙
所のトミーエコーＢＭタイプ）を用いた。Example 1 In FIG. 1, electrode needles 1 are electrolytic steel etched into stripes, arranged at a density of 8 needles/i, and sandwiched between supports 2a and 2b containing hexagonal boron nitride. However, a metal plate 1) was further disposed in parallel to the row of electrode needles 1 as a wear rate adjusting material, and the gold rX plate 1) was also sandwiched between supports 2c containing hexagonal boron nitride. It is something. The metal plate 1) was made of the same electrolytic copper as the electrode needle 1, and its thickness was also the same. No electrical connection is made to the metal plate 1). In this case, the electrolytic steel material exposed at the tip of the electrode head has a cross-sectional area three times that of the electrode needle alone. Figure 2 shows the state of contact between the electrode needle 1 and the metal plate 1) and the discharge breakdown recording paper 23, and shows that the pressure of the platen 26 is supported by the electrode needle 1 and the metal plate 1). It is something. As the discharge breakdown recording paper, a commercially available discharge recording paper (for example, Tomy Echo BM type manufactured by Tomoekawa Paper Manufacturing Co., Ltd.) was used.
実施例２
第３図は第４図に示した従来構成の電臘ヘフドの支持体
２ｂの主面の一方に、摩耗速度調整材として金属板１）
を接着したものである。前記金属ｉｌｌには、実施例１
と同じく電極針１と同じ厚さの電解１問１反を用いた。Embodiment 2 FIG. 3 shows a metal plate 1) as a wear rate adjusting material on one of the main surfaces of the support 2b of the conventional electric rack shown in FIG. 4.
is glued together. In the metal ill, Example 1
Similarly, one piece of electrolytic material with the same thickness as the electrode needle 1 was used.
以上、実施例１および実施例２の電極ヘッドに放電破壊
記録紙を接触走行させて摩耗速度を評価した結果、従来
構成の電極ヘッドに比較して８分の１の摩耗速度になっ
た。As described above, as a result of evaluating the wear rate by running the discharge breakdown recording paper in contact with the electrode heads of Examples 1 and 2, the wear rate was 1/8th that of the electrode head of the conventional configuration.
摩耗速度調整板は電解銅に限定するものではなく、さら
には金属に限定するものではなく、放電破壊記録紙との
接触走行において電極針と概略同一の摩耗速度を示す材
料であればよい。また、その形状は板状に限定するもの
ではなく、電極針と放電破壊記録紙との接触を悪化させ
ないものであればよい。たとえば、電極針のような形状
であってもよい。さらには、電極針列の片側のみに配置
することに限定するものではなく、電極針列の前後に配
置してもよい。The wear rate adjusting plate is not limited to electrolytic copper, or even metal, and may be made of any material that exhibits approximately the same wear rate as the electrode needle when running in contact with the discharge breakdown recording paper. Further, the shape is not limited to a plate shape, and may be any shape as long as it does not deteriorate the contact between the electrode needle and the discharge breakdown recording paper. For example, it may be shaped like an electrode needle. Furthermore, the arrangement is not limited to only one side of the electrode needle row, but may be arranged before and after the electrode needle row.
発明の効果
以上の説明から明らかなように、本発明は電極ヘッドの
先端、すなわち放電破壊記録紙と接触走行する面に、従
来構成の場合の六方晶系窒化硼素の支持体と電解銅の電
極針に加えて電解銅板が存在する形になるため、従来構
成の場合と比較して著るしく電極ヘッドの摩耗速度を小
さくすることができ、コストパフォーマンスのよい電極
ヘッドを得ることができるとともに、より高解像度のプ
リンタにも対応することができる。Effects of the Invention As is clear from the above explanation, the present invention has a hexagonal boron nitride support and an electrolytic copper electrode on the tip of the electrode head, that is, on the surface that comes into contact with the discharge breakdown recording paper. Since an electrolytic copper plate is present in addition to the needle, the wear rate of the electrode head can be significantly reduced compared to the conventional configuration, making it possible to obtain an electrode head with good cost performance. It can also be used with higher resolution printers.
第１図は本発明の第１の実施例における電極ヘッドの構
成を示す斜視閲、第２図は本発明の第２の実施例におけ
る電極ヘッドと放電破壊記録紙との接触断面図、第３図
は本発明の第２の実施例における電極ヘッドの斜視図、
第４図は従来構成の電極ヘッドの斜視図、第５図は放電
破壊記録の動作原理図、第６図は電極針断面積とヘッド
摩耗速度の関係図である。
１・・・・・・電極針、２ａ、２ｂ、２ｃ・・・・・・
支持体、２１・・・・・・金属板、２１・・・・・・電
気信号源、２２・・・・・・アース電極、２３・・・・
・・放電破壊記録紙、２４・・・・・・金属薄膜層、２
５・・・・・・黒色層、２６・・・・・・プラテン。
代理人の氏名 弁理士 中尾敏男 はか１名／−−−立
重討
／／−一−ネ羞ス
第 １ 図
第 ３ 図
／−一電ａ針
２（２，２ｂ−−一支苔汰
第４図
第 ６ 図FIG. 1 is a perspective view showing the structure of the electrode head in the first embodiment of the present invention, FIG. 2 is a sectional view of the contact between the electrode head and the discharge breakdown recording paper in the second embodiment of the present invention, and FIG. The figure is a perspective view of an electrode head in a second embodiment of the present invention.
FIG. 4 is a perspective view of an electrode head with a conventional configuration, FIG. 5 is a diagram of the operating principle of discharge breakdown recording, and FIG. 6 is a diagram of the relationship between the cross-sectional area of the electrode needle and the head wear rate. 1... Electrode needle, 2a, 2b, 2c...
Support body, 21... Metal plate, 21... Electric signal source, 22... Earth electrode, 23...
...Discharge breakdown recording paper, 24...Metal thin film layer, 2
5... Black layer, 26... Platen. Name of agent: Patent attorney Toshio Nakao Haka 1/---Tachijusai//-1-Nesu No. 1 Figure 3/-Iden a needle 2 (2, 2b--Isshikota Figure 4 Figure 6
Claims (4)
し、前記記録電極計の先端を前記支持体表面から露出さ
せて記録体との間に通電をおこなって記録する電極ヘッ
ドであって、前記支持体中または支持体の主面に、摩耗
速度調整材を埋設または接着してなることを特徴とする
電極ヘッド。(1) An electrode head in which a plurality of recording electrode needles are embedded in a support that is easily abraded, and the tip of the recording electrode meter is exposed from the surface of the support, and a current is applied between the tip of the recording electrode and the recording medium to perform recording. An electrode head characterized in that a wear rate adjusting material is embedded or adhered in the support or on the main surface of the support.
、それ以下であることを特徴とする請求項第（１）項記
載の電極ヘッド。(2) The electrode head according to claim (1), wherein the wear rate of the wear rate adjusting material is the same as or lower than that of the electrode meter.
ることを特徴とする請求項第（１）項記載の電極ヘッド
。(3) The electrode head according to claim (1), wherein the support is made of a material containing hexagonal boron nitride.
を用いることを特徴とする請求項第（１）項記載の電極
ヘッド。(4) The electrode head according to claim (1), wherein the same material as the recording electrode needle is used as the wear rate adjusting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5662288A JPH01229653A (en) | 1988-03-10 | 1988-03-10 | Electrode head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5662288A JPH01229653A (en) | 1988-03-10 | 1988-03-10 | Electrode head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01229653A true JPH01229653A (en) | 1989-09-13 |
Family
ID=13032385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5662288A Pending JPH01229653A (en) | 1988-03-10 | 1988-03-10 | Electrode head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01229653A (en) |
-
1988
- 1988-03-10 JP JP5662288A patent/JPH01229653A/en active Pending
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