JPH037162Y2 - - Google Patents
Info
- Publication number
- JPH037162Y2 JPH037162Y2 JP2651384U JP2651384U JPH037162Y2 JP H037162 Y2 JPH037162 Y2 JP H037162Y2 JP 2651384 U JP2651384 U JP 2651384U JP 2651384 U JP2651384 U JP 2651384U JP H037162 Y2 JPH037162 Y2 JP H037162Y2
- Authority
- JP
- Japan
- Prior art keywords
- printing
- permanent magnet
- yoke
- row direction
- pole
- 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.)
- Expired
Links
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Impact Printers (AREA)
Description
【考案の詳細な説明】
本考案は印字ハンマ駆動装置を軽量化すること
によつて高印字速度化を図るようにしたドツトラ
インプリンタに関するものである。[Detailed Description of the Invention] The present invention relates to a dot line printer that achieves high printing speed by reducing the weight of the printing hammer drive device.
印字ハンマ駆動装置は、第１図に示す如く、印
字面に印字ピン６を装着した板バネ５からなる印
字ハンマと、永久磁石１、リアヨーク３及び該リ
アヨーク３の上部脚部すなわちポール部２に巻装
された釈放コイル４からなり、前記板バネ５を吸
引保持する磁気回路構造とから構成されるもので
ある。なお、前記板バネ５はその下端が固定ネジ
８により固定板９を介してヨークスペーサ７の下
端に装着されている。 As shown in FIG. 1, the printing hammer drive device includes a printing hammer consisting of a plate spring 5 with a printing pin 6 attached to the printing surface, a permanent magnet 1, a rear yoke 3, and an upper leg portion of the rear yoke 3, that is, a pole portion 2. It consists of a wound release coil 4 and a magnetic circuit structure that attracts and holds the leaf spring 5. The lower end of the leaf spring 5 is attached to the lower end of the yoke spacer 7 with a fixing screw 8 and a fixing plate 9 interposed therebetween.
前記板バネ５は永久磁石１の磁気吸引力により
リアヨーク３のポール部２に常時吸引保持されて
いる。前記釈放コイル４を励磁すると前記磁気吸
引力は相殺され、板バネ５はその弾発力により飛
行して前記印字ピン６を図示しない用紙及びイン
クリボンを介して図示しないプラテンに衝突させ
る。この結果用紙上にはドツトが印字される。 The leaf spring 5 is constantly attracted and held by the pole portion 2 of the rear yoke 3 by the magnetic attraction force of the permanent magnet 1. When the release coil 4 is energized, the magnetic attraction force is canceled out, and the leaf spring 5 flies due to its elastic force, causing the printing pin 6 to collide with a platen (not shown) via a sheet of paper (not shown) and an ink ribbon (not shown). As a result, dots are printed on the paper.
かかる印字ハンマ駆動装置を第２図に示す如く
行方向に複数個並べてハンマバンクを構成し、該
ハンマバンクを行方向に往復動させると共に前記
用紙を１ドツト行ずつ間歇的に送つて印字させて
いる。 As shown in FIG. 2, a plurality of such printing hammer driving devices are arranged in the row direction to form a hammer bank, and the hammer bank is reciprocated in the row direction and the paper is intermittently fed one dot row at a time for printing. There is.
このようなプリンタにおいて、高印字速度にす
るには、前記ハンマバンクの往復動速度を高速に
する方法とハンマバンクを上下２段に設置する方
法とが提案されている。 In order to achieve a high printing speed in such a printer, two methods have been proposed: increasing the reciprocating speed of the hammer bank, and installing the hammer banks in two stages, upper and lower.
ハンマバンクを高速往復動させるには、ハンマ
バンクすなわち印字ハンマ駆動装置の軽量化は必
須である。第１図々示の印字ハンマ駆動装置は、
永久磁石１で発生しリアヨーク３及びポール２を
通る磁束により板バネ５を吸引しているが、磁路
が長いため一般的に磁束の漏れは大きい。必要な
磁束量をポール２の吸引部で得るため永久磁石１
は効率の良い磁気回路構成の印字ハンマ駆動装置
に比較して大きくなると共にリアヨーク３といつ
た大きな部材も必要とするため軽量化は困難だつ
た。 In order to reciprocate the hammer bank at high speed, it is essential to reduce the weight of the hammer bank, that is, the printing hammer drive device. The printing hammer drive device shown in the first figure is
The leaf spring 5 is attracted by the magnetic flux generated by the permanent magnet 1 and passing through the rear yoke 3 and the pole 2, but since the magnetic path is long, the leakage of the magnetic flux is generally large. Permanent magnet 1 is used to obtain the necessary amount of magnetic flux at the attraction part of pole 2.
It is difficult to reduce the weight because it is larger than a printing hammer drive device with an efficient magnetic circuit structure and also requires large components such as the rear yoke 3.
また印字ハンマ駆動装置を上下２段に設置した
場合、釈放コイル４が接近するため冷却効率が悪
くなり、釈放コイル４の発熱のため充分にその性
能を発揮できず、高速化の実現は困難であつた。 Furthermore, if the printing hammer drive device is installed in two stages, upper and lower, the release coil 4 will be close together, resulting in poor cooling efficiency, and the release coil 4 will generate heat, making it difficult to achieve its full performance, making it difficult to achieve high speed. It was hot.
本考案の目的は、上記した従来技術の欠点をな
くし、高印字速度を可能にすると共に安価なプリ
ンタを提供できるようにすることである。 An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to enable high printing speeds, and to provide an inexpensive printer.
本考案は、磁束の通路となる磁気回路の長さを
短くした印字ハンマ駆動装置を上下２段に設置し
て高印字速度化を図ると共に冷却効率が低下しな
いように工夫したものである。以下実施例図面を
参照して本考案を説明する。 The present invention is designed to increase the printing speed by installing printing hammer drive devices in upper and lower stages with a shortened length of the magnetic circuit that serves as the path of magnetic flux, and to prevent the cooling efficiency from decreasing. The present invention will be described below with reference to the drawings.
第３図及び第４図に本考案ドツトラインプリン
タを構成する印字ハンマ駆動装置を示す。なお第
１図及び第２図と同一符号は同一部品を示す。永
久磁石１と平行に延びてその後面に設けられ、永
久磁石とほぼ同一高さに設けられたリアヨーク３
０、該リアヨーク３０から少なくとも前記板バネ
５の数に等しい数に分岐され、その上端が前記板
バネ５の印字ピン６の下方の裏面に近接する如く
所定角度で傾斜して延びたポール２０及び該ポー
ル２０に巻装された釈放コイル４０とが第１図及
び第２図と異なるところである。 FIGS. 3 and 4 show a printing hammer driving device constituting the dot line printer of the present invention. Note that the same reference numerals as in FIGS. 1 and 2 indicate the same parts. A rear yoke 3 extends parallel to the permanent magnet 1 and is provided on the rear surface thereof, and is provided at approximately the same height as the permanent magnet.
0, poles 20 that are branched from the rear yoke 30 into at least a number equal to the number of leaf springs 5 and extend at a predetermined angle such that their upper ends are close to the back surface below the printing pins 6 of the leaf springs 5; The difference from FIGS. 1 and 2 is the release coil 40 wound around the pole 20.
図示構成から明らかな如く、リアヨーク３０を
小さくでき磁路を大幅に短かくできるので、漏れ
磁束が少なくなり永久磁石１を小形化できる。こ
の結果印字ハンマ駆動装置の軽量化が可能とな
り、高速往復動作が可能となつて高印字速度を実
現できる。 As is clear from the illustrated configuration, since the rear yoke 30 can be made smaller and the magnetic path can be significantly shortened, leakage magnetic flux is reduced and the permanent magnet 1 can be made smaller. As a result, the weight of the printing hammer drive device can be reduced, high-speed reciprocation is possible, and high printing speed can be achieved.
第５図及び第６図は本考案ドツトラインプリン
タの要部を示すもので、上下の印字ハンマ駆動装
置は、リアヨーク３０の裏面に装着された連結板
１０により結合されている。この場合、上下の板
バネ５は互い違いに並ぶように配置される。 5 and 6 show the main parts of the dot line printer of the present invention, in which the upper and lower printing hammer drive devices are connected by a connecting plate 10 attached to the back side of the rear yoke 30. FIG. In this case, the upper and lower leaf springs 5 are arranged alternately.
かかる構成において、上下の釈放コイル４０が
互いに接近することがないので、冷却風の通路と
しての抵抗が小さくなり、小容量の冷却装置で充
分冷却できるという効果がある。また上下の釈放
コイル４０間の磁気干渉が少なくなるという効果
も生じる。 In this configuration, since the upper and lower release coils 40 do not come close to each other, the resistance as a passage for cooling air is reduced, and there is an effect that sufficient cooling can be achieved with a small-capacity cooling device. There is also the effect that magnetic interference between the upper and lower release coils 40 is reduced.
以上のように本考案によれば、磁気回路の長さ
を短くして軽量化した印字ハンマ駆動装置を上下
２段に設置した結果印字速度を向上させることが
可能となる。また上下の釈放コイル間の距離を大
きくでき冷却効率を向上できると共に磁気干渉を
少なくすることができる等の効果を奏し得る。 As described above, according to the present invention, it is possible to improve the printing speed by installing the printing hammer drive devices, which are light in weight by shortening the length of the magnetic circuit, in the upper and lower stages. In addition, the distance between the upper and lower release coils can be increased, cooling efficiency can be improved, and magnetic interference can be reduced.
第１図及び第２図は従来の印字ハンマ駆動装置
の一例を示す断面図及び斜視図、第３図及び第４
図は本考案で用いる印字ハンマ駆動装置を示す断
面図及び斜視図、第５図及び第６図は本考案の実
施例を示す断面図及び斜視図である。
図において、１は永久磁石、２，２０はポー
ル、３，３０はヨーク、４，４０は釈放コイル、
５は板バネ、６は印字ピン、７はヨークスペー
サ、８は固定ネジ、９は固定板、１０は連結板で
ある。
1 and 2 are a sectional view and a perspective view showing an example of a conventional printing hammer drive device, and FIGS. 3 and 4 are
The figure is a cross-sectional view and a perspective view showing a printing hammer driving device used in the present invention, and FIGS. 5 and 6 are a cross-sectional view and a perspective view showing an embodiment of the present invention. In the figure, 1 is a permanent magnet, 2 and 20 are poles, 3 and 30 are yokes, 4 and 40 are release coils,
5 is a leaf spring, 6 is a printing pin, 7 is a yoke spacer, 8 is a fixing screw, 9 is a fixing plate, and 10 is a connecting plate.
Claims (1)
該永久磁石と平行に延びてその前面に設けられた
ヨークスペーサと、上端近傍に印字ピンを有し、
下端が該ヨークスペーサに取り付けられ、行方向
に複数個並べて設けられた板バネと、前記永久磁
石と平行に延びてその後面に設けられたリアヨー
クと、該リアヨークから少なくとも前記板バネの
数に等しい数に分岐され、その先端が前記板バネ
の印字ピンの下方の裏面に近接する如く所定角度
傾斜して延びたポールと、該ポールに巻装された
釈放コイルとを備えた印字ハンマ駆動装置の一対
を印字位置をはさむ上下であつて、夫々の前記板
バネ上の印字ピンが行方向に沿つて互い違いに位
置するように配置したことを特徴とするドツトラ
インプリンタ。 a permanent magnet extending in the row direction along the printing position;
A yoke spacer extending parallel to the permanent magnet and provided on the front thereof, and a printing pin near the upper end,
A plurality of plate springs whose lower ends are attached to the yoke spacer and are arranged in the row direction; a rear yoke extending parallel to the permanent magnet and provided on the rear surface thereof; and at least the number of plate springs from the rear yoke is equal to the number of the plate springs. A printing hammer drive device comprising a pole which is branched into a number of branches and whose tip extends at a predetermined angle with an inclination close to the lower back surface of the printing pin of the leaf spring, and a release coil wound around the pole. A dot line printer characterized in that a pair of dots are arranged above and below a printing position so that the printing pins on the respective leaf springs are alternately positioned along the row direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2651384U JPS60137550U (en) | 1984-02-24 | 1984-02-24 | dot line printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2651384U JPS60137550U (en) | 1984-02-24 | 1984-02-24 | dot line printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60137550U JPS60137550U (en) | 1985-09-12 |
| JPH037162Y2 true JPH037162Y2 (en) | 1991-02-22 |
Family
ID=30522586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2651384U Granted JPS60137550U (en) | 1984-02-24 | 1984-02-24 | dot line printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60137550U (en) |
-
1984
- 1984-02-24 JP JP2651384U patent/JPS60137550U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60137550U (en) | 1985-09-12 |
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