JPS61167582A - Printing hammer - Google Patents
Printing hammerInfo
- Publication number
- JPS61167582A JPS61167582A JP861085A JP861085A JPS61167582A JP S61167582 A JPS61167582 A JP S61167582A JP 861085 A JP861085 A JP 861085A JP 861085 A JP861085 A JP 861085A JP S61167582 A JPS61167582 A JP S61167582A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- leaf spring
- piezoelectric element
- anchoring part
- hammer
- 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
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
- B41J9/00—Hammer-impression mechanisms
- B41J9/26—Means for operating hammers to effect impression
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はインパクト式の印字ハンマ、特に自由飛行（フ
リーフライト）型の印字ハンマに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an impact-type printing hammer, and particularly to a free-flight printing hammer.
（従来技術とその問題点）
自由飛行型の印字ハンマは長ストロークが得られろとい
う利点がある。(Prior art and its problems) A free-flying printing hammer has the advantage of being able to provide a long stroke.
従来、自由飛行型の印字ハンマとして電磁石を用いたも
のが広く使用されている。しかし、電磁石を用いたもの
は、電気・機械エネルギ変換効率が低いため、必要とす
る印字エネルギに対し多大な入力エネルギを与える必要
があり、また、電磁石を用いているため大型化する。Conventionally, free-flying printing hammers using electromagnets have been widely used. However, those using electromagnets have low electrical/mechanical energy conversion efficiency, so it is necessary to provide a large amount of input energy to the required printing energy, and the use of electromagnets increases the size.
そこで近年、電気・機械エネルギ変換効率の高い圧電素
子を駆動源とする印字ハンマが考えられている。たとえ
ば、公開特許公報（昭５９−４５１６５）には、第５図
に示すような印字ハンマが示されている。第５図におい
て、圧電素子５１け、一端を取付部材５２に接続し、他
端は力伝達部材５３に接続している。また、印字ワイヤ
５４が接続している係留部５５はコイルにね５６により
力伝達部材５３に押圧されている。印字ワイヤ５４はガ
イド孔５７により支持されている。Therefore, in recent years, a printing hammer using a piezoelectric element with high electrical/mechanical energy conversion efficiency as a driving source has been considered. For example, a printing hammer as shown in FIG. 5 is disclosed in Japanese Patent Publication No. 59-45165. In FIG. 5, 51 piezoelectric elements are connected at one end to a mounting member 52 and at the other end to a force transmitting member 53. Further, the mooring portion 55 to which the printing wire 54 is connected is pressed against the force transmitting member 53 by a coil spring 56. The printing wire 54 is supported by the guide hole 57.
印字時、圧電素子５１に電圧を印加すると、圧電素子５
１は、矢印人の方向に高速で伸び、力伝達部材５３も変
位する。したかつで印字ワイヤ５４と係留ｓ５５は力伝
達部材５３によりカを受けて加速され、圧電素子５１の
伸び量よりもはるかに長い距離を自由飛行し、印字ワイ
ヤ５４の先端でドツトを印字する。When a voltage is applied to the piezoelectric element 51 during printing, the piezoelectric element 5
1 extends at high speed in the direction of the arrow, and the force transmitting member 53 is also displaced. Then, the printing wire 54 and the mooring s55 are accelerated by the force transmitting member 53, fly freely over a far longer distance than the amount of extension of the piezoelectric element 51, and print a dot at the tip of the printing wire 54.
このような圧電素子を用いた自由飛行型の印字ハンマで
は、構造が単純で小型になるという特徴を持っている。A free-flying printing hammer using such a piezoelectric element is characterized by its simple structure and small size.
しかしながら、係留部５５と印字ワイヤ５４はガイド孔
５７によって支持されているため、係留部５５０重みで
印字ワイヤ５４がたわみ印字ワイヤ５４とガイド孔５７
の間で摩擦が生じ、信頼性が下がるという欠点がある。However, since the mooring part 55 and the printing wire 54 are supported by the guide hole 57, the printing wire 54 is bent by the weight of the mooring part 550, and the printing wire 54 and the guide hole 54 are bent.
The drawback is that friction occurs between the two, reducing reliability.
またガイド孔５７として、摩擦の少ないルビーなど高価
な材料を使う必要があり、コストが高くなるという欠点
がある。Furthermore, it is necessary to use an expensive material such as ruby, which has low friction, for the guide hole 57, which has the disadvantage of increasing costs.
（発明の目的）
本発明は、このような従来の欠点を除去せしめて、構造
が単純で信頼性の高い低コストの印字ノ１ンマを提供す
ることにある。(Object of the Invention) An object of the present invention is to eliminate such conventional drawbacks and provide a low-cost printing printer with a simple structure and high reliability.
（発明の構成）
本発明によれば、圧電素子の伸縮方向の一端に力伝達部
材を接続し、前記圧電素子の他端は取付部材の一端に接
続し、前記取付部材の他端に板ばねの一端を接続し、前
記板ばねの他端に印字部材および係留部を接続し、前記
板ばねにより前記係留部を前記力伝達部材に押圧する構
造にしたことを特徴とする印字ハンマが得られる。(Structure of the Invention) According to the present invention, a force transmitting member is connected to one end of the piezoelectric element in the expansion and contraction direction, the other end of the piezoelectric element is connected to one end of the mounting member, and a leaf spring is connected to the other end of the mounting member. A printing hammer is obtained, wherein one end of the plate spring is connected, a printing member and a mooring part are connected to the other end of the leaf spring, and the plate spring presses the mooring part against the force transmitting member. .
（本発明の作用・原理）
本発明は、上述の構成をとることにより従来技術の問題
点を解決した。(Operation/Principle of the Present Invention) The present invention solves the problems of the prior art by adopting the above-described configuration.
すなわち、係留部を力伝達部材に板ばねを用いて押圧す
ることにより、印字部材と係留部の重量をその板ばねで
支持することができる。その結果印字部材として印字ワ
イヤを用いた場合はガイド孔と印字ワイヤとの摩擦が大
幅に軽減し、また、印字部材として印字ビンを用いた場
合はガイド孔が不用になり、印字ハンマの信頼性か上が
り低コストになる。That is, by pressing the mooring portion with the force transmitting member using a leaf spring, the weight of the printing member and the mooring portion can be supported by the leaf spring. As a result, when a printing wire is used as the printing member, the friction between the guide hole and the printing wire is significantly reduced, and when a printing bottle is used as the printing member, the guide hole is no longer required, improving the reliability of the printing hammer. This will result in lower costs.
（実施例）
以下、本発明の実施例について図面を参照して詳細に説
明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図は本発明の第１の実施例を示す図である。FIG. 1 is a diagram showing a first embodiment of the present invention.
同図において、圧電素子１１の伸縮方向の一端１１ａに
力伝達部材１２を接続し、圧電素子１１の他端１１ｂに
取付部材１３の一端１３ａを接続しミ取付部材１３の他
端１３ｂに板ばね１４の一端１４ａを固定し、板けね１
４の他端１４ｂに印字部材として印字ビン１５を接続し
、板ばね１４の印字ビン１５の接続部１４ｂ付近に係留
部１６を接続し、係留部１６を力伝達部材１２に板ばね
１４で押圧している。In the figure, a force transmitting member 12 is connected to one end 11a of the piezoelectric element 11 in the expansion and contraction direction, one end 13a of the mounting member 13 is connected to the other end 11b of the piezoelectric element 11, and a leaf spring is connected to the other end 13b of the mounting member 13. Fix one end 14a of 14, and
A printing bottle 15 is connected as a printing member to the other end 14b of the plate spring 14, a mooring part 16 is connected to the vicinity of the connecting part 14b of the printing bottle 15 of the leaf spring 14, and the mooring part 16 is pressed against the force transmitting member 12 by the leaf spring 14. are doing.
印字時、圧電素子１１に電圧を印加すると、圧電素子１
１は矢印Ａの方向に高速で伸び、力伝達部材１２も変位
する。すると板ばね１４に接続している印字ビン１５と
係留部１６は力伝達部材１２より力を受けて矢印Ｂの方
向に加速され、圧電素子１１の伸び量よりもはるかに長
い距離を自由飛行し、印字ビン１５の先端でドツトを印
字する。非印字時、係留部１６は板ばね１４の力により
、力伝達部材１２に押圧され静止している。When a voltage is applied to the piezoelectric element 11 during printing, the piezoelectric element 1
1 extends at high speed in the direction of arrow A, and the force transmitting member 12 is also displaced. Then, the printing bottle 15 and the mooring part 16 connected to the leaf spring 14 receive a force from the force transmission member 12 and are accelerated in the direction of arrow B, flying freely over a distance far longer than the amount of extension of the piezoelectric element 11. , a dot is printed at the tip of the printing bottle 15. When not printing, the anchoring portion 16 is pressed against the force transmitting member 12 by the force of the leaf spring 14 and remains stationary.
このような本発明の場合、印字部材としての印字ビン１
５と係留部１６は板ばね１４によっ、て支持されている
ため、従来の実施例の場合のような印字部材を支持する
ガイド孔が不要になり、印字ハンマの信頼性か上がり低
コストになる。In the case of the present invention, the printing bottle 1 as a printing member
5 and the mooring part 16 are supported by the leaf spring 14, so there is no need for a guide hole to support the printing member as in the conventional embodiment, which increases the reliability of the printing hammer and reduces cost. Become.
第２図は第１図の本発明の印字ハンマを横一列に並べて
、ラインプリンタ用の印字へ、ドとした一実施例の斜視
図である。FIG. 2 is a perspective view of an embodiment in which the printing hammers of the present invention shown in FIG. 1 are arranged horizontally in a row and used for printing for a line printer.
第３図社本発明の第２の実施例を示す図である。FIG. 3 is a diagram showing a second embodiment of the present invention.
同図において、圧電素子３１の伸縮方向の一端３１ａに
力伝達部材３２を接続し、圧電素子３１の他端３１ｂに
取付部材３３の一端３３ａを接続し、取付部材３３の他
端３３ｂに板はね３４の一端３４ａを固定し、板ばね３
４の他端３４ｂに印字部材としての印字ワイヤ３５と係
留部３６を接続し、係留部３６を力伝達部材３２に板ば
ね３４で押圧している。In the figure, a force transmitting member 32 is connected to one end 31a of the piezoelectric element 31 in the expansion and contraction direction, one end 33a of the mounting member 33 is connected to the other end 31b of the piezoelectric element 31, and a plate is connected to the other end 33b of the mounting member 33. One end 34a of the spring 34 is fixed, and the leaf spring 3
A printing wire 35 as a printing member and a mooring portion 36 are connected to the other end 34b of 4, and the mooring portion 36 is pressed against the force transmitting member 32 by a leaf spring 34.
第４図は、第３図の印字ハンマを円周上に印字ワイヤ３
５付近を中心として並べて、シリアルプリンタ用の印字
ヘッドとした実施例の断面図である。Figure 4 shows the printing wire 3 on the circumference of the printing hammer in Figure 3.
FIG. 5 is a cross-sectional view of an embodiment in which print heads are arranged around 5 and used as a print head for a serial printer.
この場合、印字部材として印字ワイヤ３５を用いている
ため、ガイド孔４７を設けているが、印字ワイヤ３５と
係留部３６０重量は板ばね３４で完全に支持されている
ので、印字ワイヤ３５とガイド孔４７の間の摩擦は、第
５図に示したような従来の実施例に比べて、非常に小さ
くなり、信頼性が上がる。In this case, since the printing wire 35 is used as a printing member, a guide hole 47 is provided, but since the weight of the printing wire 35 and the mooring portion 360 is completely supported by the leaf spring 34, the printing wire 35 and the guide hole 47 are provided. The friction between the holes 47 is much lower than in the conventional embodiment as shown in FIG. 5, increasing reliability.
（発明の効果）
本発明によれば、印字部材として印字ワイヤを用いた場
合はガイド孔と印字ワイヤとの摩擦が大幅に軽減し、ま
た、印字部材として印字ビンを用いた場合はガイド孔が
不用になり、構造が単純で低コストの信頼性の高い印字
ハンマが得られる。(Effects of the Invention) According to the present invention, when a printing wire is used as a printing member, the friction between the guide hole and the printing wire is significantly reduced, and when a printing bottle is used as a printing member, the guide hole is A printing hammer that is unnecessary, has a simple structure, is low cost, and has high reliability can be obtained.
第１図は本発明の第１の実施例を示す図、第２図は第１
図の本発明の印字ハンマを横一列に並べてラインプリン
タ用印字ヘッドとした一実施例を示す剥視図、Ｍ３図は
本発明の第２の実施例を示す図、第４図は第３図の本発
明の印字ハンマを円周上に並べてシリアルプリンタ用の
印字ヘッドとした一実施例の断面図、第５図は従来の実
施例を示す図である。
図において、１１．３１．５１・・・圧電素子、１２．
３２．５３・・・力伝達部材、１３．３３．５２・・・
取付部材、１４．３４・・・板ばね、５６・・・コイル
ばね、１５・・・印字ビン、３５．５４・・・印字ワイ
ヤ、１６．３６．５５・・・係留部、４７．５７・・・
ガイド孔をそれぞれ示す。
菊２図
不応、（はｐ ４斤、呈Ｕ旬′！１１１３
図
第４図FIG. 1 is a diagram showing a first embodiment of the present invention, and FIG. 2 is a diagram showing a first embodiment of the present invention.
Figure M3 is a perspective view showing an embodiment of the print head for a line printer in which the printing hammers of the present invention are arranged horizontally in a row, Figure M3 is a diagram showing the second embodiment of the present invention, and Figure 4 is Figure 3. FIG. 5 is a cross-sectional view of an embodiment in which the printing hammers of the present invention are arranged circumferentially to form a print head for a serial printer, and FIG. 5 is a diagram showing a conventional embodiment. In the figure, 11.31.51... piezoelectric element, 12.
32.53... Force transmission member, 13.33.52...
Mounting member, 14.34... Leaf spring, 56... Coil spring, 15... Printing bottle, 35.54... Printing wire, 16.36.55... Mooring part, 47.57.・・・
Each guide hole is shown. 2 chrysanthemums are unresponsive.
Figure 4
Claims (1)
圧電素子の他端は取付部材の一端に接続し、前記取付部
材の他端に板ばねの一端を接続し、前記板ばねの他端に
印字部材および係留部を接続し、前記板ばねにより前記
係留部を前記力伝達部材に押圧する構造にしたことを特
徴とする印字ハンマ。A force transmitting member is connected to one end of the piezoelectric element in the expansion and contraction direction, the other end of the piezoelectric element is connected to one end of a mounting member, one end of a leaf spring is connected to the other end of the mounting member, and the other end of the piezoelectric element is connected to one end of a mounting member. 1. A printing hammer, characterized in that a printing member and a mooring portion are connected to an end thereof, and the mooring portion is pressed against the force transmitting member by the leaf spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP861085A JPS61167582A (en) | 1985-01-21 | 1985-01-21 | Printing hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP861085A JPS61167582A (en) | 1985-01-21 | 1985-01-21 | Printing hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61167582A true JPS61167582A (en) | 1986-07-29 |
Family
ID=11697724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP861085A Pending JPS61167582A (en) | 1985-01-21 | 1985-01-21 | Printing hammer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61167582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0366981A2 (en) * | 1988-10-31 | 1990-05-09 | International Business Machines Corporation | Matrix printer actuator |
| US5046872A (en) * | 1988-10-31 | 1991-09-10 | Ibm Corporation | Printer actuated by piezoelectrically generated shock wave |
-
1985
- 1985-01-21 JP JP861085A patent/JPS61167582A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0366981A2 (en) * | 1988-10-31 | 1990-05-09 | International Business Machines Corporation | Matrix printer actuator |
| US5046872A (en) * | 1988-10-31 | 1991-09-10 | Ibm Corporation | Printer actuated by piezoelectrically generated shock wave |
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