JPH01271252A - Printing head - Google Patents
Printing headInfo
- Publication number
- JPH01271252A JPH01271252A JP10022488A JP10022488A JPH01271252A JP H01271252 A JPH01271252 A JP H01271252A JP 10022488 A JP10022488 A JP 10022488A JP 10022488 A JP10022488 A JP 10022488A JP H01271252 A JPH01271252 A JP H01271252A
- Authority
- JP
- Japan
- Prior art keywords
- elastic
- elastic member
- elastic members
- printing
- 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
- 238000006073 displacement reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Impact Printers (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
圧電素子等の駆動素子を利用したワイヤドツトインパク
トプリンタ用印字ヘッドに関し、印字動作を安定化させ
て十分な印字ストロークが得られるようにすることを目
的とし、ベースフレームと、該ベースフレームに基部が
固定され通電時に変位する駆動素子と、先端に印字ワイ
ヤが固定された可動部材と、一端は前記駆動素子からの
力を受けるように連結され、他端が前記可動部材に固定
された第１の弾性部材と、該第１の弾性部材とほぼ平行
に配置され、一端が前記ベースフレームに、他端が前記
可動部材にそれぞれ固定された第２の弾性部材とを備え
た印字ヘッドにおいて、前記第１．第２の弾性部材を、
該両弾性部材の対向方向に伸びる弾性線状部材で連結し
た構成とする。[Detailed Description of the Invention] [Summary] The present invention aims to stabilize the printing operation and obtain a sufficient printing stroke with respect to a print head for a wire dot impact printer that uses a drive element such as a piezoelectric element. A base frame, a drive element whose base is fixed to the base frame and is displaced when energized, a movable member having a printing wire fixed to its tip, one end of which is connected to receive the force from the drive element, and the other end of which is connected to a first elastic member fixed to the movable member; and a second elastic member arranged substantially parallel to the first elastic member, with one end fixed to the base frame and the other end fixed to the movable member. In the print head comprising the first. the second elastic member,
The two elastic members are connected by an elastic linear member extending in opposite directions.
本発明は圧電素子等の駆動素子を利用したワイヤドツト
インパクトプリンタ用印字ヘッドに関する。The present invention relates to a print head for a wire dot impact printer that uses drive elements such as piezoelectric elements.
第４図はこの種の従来の印字ヘッドの構造概要を示す側
面図で、図中、ｌば・・、−スフレーム、２は駆動素子
、３は可動部材、４及び５は第１及び第２の弾性部材で
ある６、
駆動素子２は、基部がベースフレーム１に固定され、通
な時に矢印で示す」一方に変位する。FIG. 4 is a side view showing an outline of the structure of this type of conventional print head. The driving element 2, which is the elastic member 2, has its base fixed to the base frame 1, and is displaced in one direction as indicated by the arrow when the driving element 2 is turned on.
可動部材３は、駆動素子２の一ヒ方に所定距離を介し対
向し、先端に印字Ｉツイヤ６を備えている。The movable member 3 faces one side of the drive element 2 at a predetermined distance, and is provided with a printed I-twirl 6 at its tip.
第１の弾性部材４ば、上干方１ｉＪｌ、ご伸びて配置さ
れ、下端が駆動素子２の先端部材２ａに、上端が可動部
材３にそれぞれ固定されている。The first elastic member 4 is arranged to extend upwardly, and its lower end is fixed to the tip member 2a of the drive element 2, and its upper end is fixed to the movable member 3.
第２の弾性部材５は、第１の弾性部材４とは１訂平行に
配置され、下端がベースフレ−ム端が可動部材３にそれ
ぞれ固定されている。The second elastic member 5 is arranged in parallel with the first elastic member 4, and its lower end and base frame end are fixed to the movable member 3, respectively.
印字に際り、では、駆動素子２に所定時間通電する。こ
の通電により、駆動素子２の先端部２ａは第５図に示す
ようにδだけ１一方に変位し、第１の弾性部材４６コは
圧縮ツノＰが付与される。その結果、第１．第２の弾性
部材４．５によるバイメタル効果により、可動部材３は
第４図に矢印で示す時計方向に第５図の点線の位置まで
回動し、この可動部子１３の回動動作によって印字ワイ
ヤ６による印字が行われる。駆動素子２ （、Ｚ対する
４電は印字完了前に停止されてお２１、印字を完了した
可動部材３は第１．第２の弾性部材４．５とともにもと
の第４図の状態に復帰する。When printing, the drive element 2 is energized for a predetermined period of time. By this energization, the tip end 2a of the drive element 2 is displaced by δ in one direction as shown in FIG. 5, and the first elastic member 46 is given a compression horn P. As a result, 1. Due to the bimetal effect of the second elastic member 4.5, the movable member 3 rotates clockwise as shown by the arrow in FIG. 4 to the position indicated by the dotted line in FIG. Printing is performed using the wire 6. The four electric currents to the driving element 2 (21) are stopped before the printing is completed, and the movable member 3, which has completed printing, returns to the original state shown in FIG. 4 together with the first and second elastic members 4.5. do.
〔発明が解決し２よ・うとする課題〕
このような構成２作用を有する従来の印字・＼ソドにお
いては、駆動素子２の変位により付与される圧縮力によ
って第１の弾性部材３が座屈を起、′。[Problems to be Solved by the Invention] In the conventional printing system having such a configuration 2 effect, the first elastic member 3 buckles due to the compressive force applied by the displacement of the drive element 2. Wake up,′.
して印字動作が不安定となり、第１．第２の弾性部材４
，５によるバイメタル効果が充分に得られないという欠
点があった。The printing operation becomes unstable, and the first problem occurs. Second elastic member 4
, 5 has the disadvantage that the bimetallic effect cannot be sufficiently obtained.
本発明は印字動作を安定化させて上置な印字ストローク
が得られるようにすることのできる印字ヘッドを提供す
ることを目的とするものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a print head capable of stabilizing the printing operation and making it possible to obtain an upward printing stroke.
上述の目的を達成すイ）ため、本発明では、ベースフレ
ームと、該ベースフレームに基部が固定すれ通電時に変
位する駆動素子と、先端に印字ワイヤが固定された可動
部材と、一端は前記駆動索Ｔからの力を受けるように連
結され他端が前記可動部材に固定された第１の弾性部材
と、該第１の弾性部材とほぼ平行に配置され一端が前記
ベースフレームに他端が前記可動部材に（れぞれ固定さ
れた第２の弾性部材とを備えた印字ヘッドにおいて、前
記第１．第２の弾性部材を、該両弾性部材の対向方向に
伸びる弾性線状部材で連結した構成とする。In order to achieve the above object (a), the present invention includes a base frame, a drive element whose base is fixed to the base frame and is displaced when energized, a movable member having a printing wire fixed to its tip, and one end of which is connected to the drive element. a first elastic member connected to receive a force from the cable T and having its other end fixed to the movable member; and a first elastic member disposed substantially parallel to the first elastic member and having one end connected to the base frame and the other end fixed to the movable member. In a print head including a second elastic member fixed to a movable member, the first and second elastic members are connected by an elastic linear member extending in opposite directions of the two elastic members. composition.
印字に際しては駆動素子の変位により第１の弾性部材に
圧縮力が付与される。この圧縮力によって従来は第１の
弾性部材に座屈が起こ、って印字動作が不安定となって
いたが、本発明では、第１゜第２の弾性部材の対向方向
での相対変位は弾性線状部材で拘束され、しかも該弾性
線状部材は各弾性部材の長手方向の相対変位を妨げない
ため、第１の弾性部材の座屈は防止され、印字動作は安
定する。During printing, a compressive force is applied to the first elastic member by displacement of the drive element. Conventionally, this compressive force caused the first elastic member to buckle, making the printing operation unstable, but in the present invention, the relative displacement between the first and second elastic members in the opposing directions is Since the first elastic member is restrained by the elastic linear member, and the elastic linear member does not hinder the relative displacement of each elastic member in the longitudinal direction, buckling of the first elastic member is prevented and the printing operation is stabilized.
以下、第１図乃至第３図に関連（−で本発明の詳細な説
明する。The present invention will be described in detail below with reference to FIGS. 1 to 3.
第１図は本発明に係る印字ヘッドの構造概要を示す側面
図、第２図は同斜視図で、図中、１１は第１の弾性部材
、１２は第２の弾性部材、１３はばねワイヤ等の弾性線
状部材である。なお、従来と同一構成の部材には従来と
同様の符号を付している。FIG. 1 is a side view showing an outline of the structure of a print head according to the present invention, and FIG. 2 is a perspective view thereof. In the figure, 11 is a first elastic member, 12 is a second elastic member, and 13 is a spring wire. It is an elastic linear member such as. Note that the same reference numerals as in the past are given to members having the same configuration as in the past.
第１の弾性部材１１及び第２の弾性部材１２は、対向す
る部分に弾性線状部材１３挿通用の孔］、 １ ａ及び
１２ａを備えた以外は従来の第１．第２の弾性部材４，
５と同様のもので、上下端の固定要領も従来と同様であ
る。The first elastic member 11 and the second elastic member 12 are similar to the conventional first elastic member 11 except that opposing portions are provided with holes for inserting the elastic linear member 13], 1a and 12a. second elastic member 4,
5, and the procedure for fixing the upper and lower ends is also the same as the conventional one.
弾性線状部材１３は、各弾性部材の孔１１ａ。The elastic linear member 13 has a hole 11a in each elastic member.
１２ａに挿通され、各端部はそれぞれ第１の弾性部材１
１及び第２の弾性部材１２にろ一付は等により固定され
ている。12a, each end of which is inserted into the first elastic member 1.
The filters are fixed to the first and second elastic members 12 by means of, for example, a filter.
印字に際しては、従来と同様に駆動素子２に所定時間通
電して先端部材２ａを上方に所定量変位させる。これに
より、第１の弾性部材１１は圧縮ツノを受けるが、この
場合従来は第１の弾性部材が座屈を起こして印字動作が
不安定になるという問題があった。しかし、本発明では
、第１．第２の弾性部材１１．１２がこれらの対向方向
に伸びる弾性線状部材１３により連結されており、該両
弾性部材１１．１２の対向方向での相対変位は起こらな
いので、第１の弾性部材１１の座屈は防止される。また
、弾性線状部材１３はその弾性により両弾性部材１１．
１２の長手方向の相対変位を妨げない。従って、第１．
第２の弾性部材１１゜１２によるバイメタル効果が向上
し、印字動作を安定させて高速化を実現することが可能
になる。When printing, the driving element 2 is energized for a predetermined period of time to displace the tip member 2a upward by a predetermined amount as in the conventional case. As a result, the first elastic member 11 is subjected to compression horns, but in this case, there has conventionally been a problem in that the first elastic member buckles and the printing operation becomes unstable. However, in the present invention, the first. The second elastic members 11, 12 are connected by the elastic linear members 13 extending in opposite directions, and since no relative displacement occurs between the two elastic members 11, 12 in the opposite directions, the first elastic member 11 is prevented from buckling. Also, the elastic linear member 13 has both elastic members 11 due to its elasticity.
12 relative displacement in the longitudinal direction. Therefore, the first.
The bimetal effect of the second elastic members 11 and 12 is improved, making it possible to stabilize the printing operation and achieve high speed printing.
なお第１，２図には弾性線状部材１３を２箇所に設ける
例を示したが、この数は各弾性部材の形状、ばね常数等
に応じ適宜選定する。Although FIGS. 1 and 2 show an example in which the elastic linear members 13 are provided at two locations, this number is appropriately selected depending on the shape, spring constant, etc. of each elastic member.
第３図に他の実施例を示す。FIG. 3 shows another embodiment.
本例の場合は、第１の弾性部材１１′の一端はレバー２
２に固定されている。レバー２２はベースフレーム１′
に板ばね２１を介し片持状に支持され、このレバー２２
の中間部に駆動素子２の先端部２ａが連結されている。In this example, one end of the first elastic member 11' is connected to the lever 2.
It is fixed at 2. The lever 22 is attached to the base frame 1'
The lever 22 is supported in a cantilevered manner via a leaf spring 21.
The tip portion 2a of the drive element 2 is connected to the intermediate portion of the drive element 2.
すなわち、第１の弾性部材１１′の一端は駆動素子２か
らの力を受けるように連結されている。That is, one end of the first elastic member 11' is connected to receive the force from the drive element 2.
また、第２の弾性部材１２′の一端はベースフレーム１
′に固定されている。Further, one end of the second elastic member 12' is connected to the base frame 1.
’ is fixed.
これらの各弾性部材１１′、１２’は、前例と同様に弾
性線状部材１３により連結されている。These elastic members 11', 12' are connected by an elastic linear member 13 as in the previous example.
本例の場合も、前例と同様の効果が得られる。In the case of this example as well, the same effect as the previous example can be obtained.
以上述べたように、本発明によれば、両弾性部材の対向
方向の相対変位は拘束され、しがも長手方向の相対変位
は拘束されないようになっているため、両弾性部材によ
るバイメタル効果を向上させて印字動作の安定高速化を
実現することが可能になる。As described above, according to the present invention, the relative displacement of both elastic members in the opposing direction is restrained, but the relative displacement in the longitudinal direction is not restrained. This makes it possible to achieve stable and high-speed printing operations.
第１図は本発明の実施例の印字ヘッドの構造概要を示す
側面図、
第２図は同斜視図、
第３図は本発明の他の実施例の印字ヘッドの構造概要を
示す側面図、
第４図は従来の印字ヘッドの構造概要を示す側面図、
第５図は従来の印字ヘッドの作用説明図で、図中、
２は駆動素子、
２ａは先端部、
３は可動部材、
６は印字ワイヤ、
１１は第１の弾性部材１．
１２は第２の弾性部材、
１３は弾性線状部材である。
６ａ字ワイヤ
第１図
第２図
第３図
」
ｂ
区−）
官こ）FIG. 1 is a side view showing an outline of the structure of a print head according to an embodiment of the present invention, FIG. 2 is a perspective view thereof, and FIG. 3 is a side view showing an outline of the structure of a print head according to another embodiment of the invention. FIG. 4 is a side view showing the general structure of a conventional print head, and FIG. 5 is an explanatory diagram of the operation of the conventional print head. In the figure, 2 is a driving element, 2a is a tip, 3 is a movable member, and 6 is a printing wire, 11 is the first elastic member 1. 12 is a second elastic member, and 13 is an elastic linear member. 6a-shaped wire Figure 1 Figure 2 Figure 3 b
Ward-)
official)
Claims (1)
変位する駆動素子（２）と、 先端に印字ワイヤ（６）が固定された可動部材（３）と
、 一端は前記駆動素子（２）からの力を受けるように連結
され、他端が前記可動部材（３）に固定された第１の弾
性部材（１１）と、 前記第１の弾性部材（１１）とほぼ平行に配置され、一
端が前記ベースフレーム（１）に、他端が前記可動部材
にそれぞれ固定された第２の弾性部材（１２）とを備え
た印字ヘッドにおいて、前記第１、第２の弾性部材（１
１、１２）を、該両弾性部材（１１、１２）の対向方向
に延びる弾性線状部材により連結したことを特徴とする
印字ヘッド。[Claims] A base frame (1), a drive element (2) whose base is fixed to the base frame (1) and is displaced when energized, and a movable member (2) having a printing wire (6) fixed to its tip. 3); a first elastic member (11) connected at one end to receive force from the drive element (2) and whose other end is fixed to the movable member (3); and the first elastic member (11). A second elastic member (12) arranged substantially parallel to the member (11) and having one end fixed to the base frame (1) and the other end fixed to the movable member, respectively. 1. Second elastic member (1
1 and 12) are connected by an elastic linear member extending in the opposite direction of the two elastic members (11, 12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10022488A JPH01271252A (en) | 1988-04-25 | 1988-04-25 | Printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10022488A JPH01271252A (en) | 1988-04-25 | 1988-04-25 | Printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01271252A true JPH01271252A (en) | 1989-10-30 |
Family
ID=14268320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10022488A Pending JPH01271252A (en) | 1988-04-25 | 1988-04-25 | Printing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01271252A (en) |
-
1988
- 1988-04-25 JP JP10022488A patent/JPH01271252A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01271252A (en) | Printing head | |
| JP2691558B2 (en) | Print head | |
| JPH05147237A (en) | Print head | |
| JPH01237156A (en) | Printing head | |
| US4974975A (en) | Armature of printing head for use in wire printer | |
| JPS6050152B2 (en) | Print head of dot type impact printer | |
| JP2736648B2 (en) | Print head | |
| JPH0312524Y2 (en) | ||
| JP2897258B2 (en) | Piezo actuator | |
| JPH0326550A (en) | Armature for printing head | |
| JPH0211432B2 (en) | ||
| JPS62208955A (en) | Printing hammer of printer | |
| JPS62204958A (en) | Printing head of wire dot printer | |
| JPS62111770A (en) | Movable body structure of wire dot head | |
| JP2797231B2 (en) | Piezo print head | |
| JPS604789B2 (en) | Clapper type wire dot print head | |
| JPH0557916A (en) | Method for assembly of piezoelectric element type actuator | |
| JPH026148A (en) | Drive for printing wire | |
| JPH06975A (en) | Printing head | |
| JPS62193839A (en) | Printing line head of dot matrix line printer | |
| JPS6149854A (en) | Printing head mover for dot printer | |
| JPH04216066A (en) | Printing head | |
| JPS6061296A (en) | Selector for recording pen in multi-pen type plotter printer | |
| JPS6048347B2 (en) | Moving coil type print head | |
| JPH02227260A (en) | Stationary spring for impact dot head |