JPH0216702B2 - - Google Patents
Info
- Publication number
- JPH0216702B2 JPH0216702B2 JP58045796A JP4579683A JPH0216702B2 JP H0216702 B2 JPH0216702 B2 JP H0216702B2 JP 58045796 A JP58045796 A JP 58045796A JP 4579683 A JP4579683 A JP 4579683A JP H0216702 B2 JPH0216702 B2 JP H0216702B2
- Authority
- JP
- Japan
- Prior art keywords
- guide
- printing element
- printing
- large diameter
- dot matrix
- 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 - Lifetime
Links
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process 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
- B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
Landscapes
- Impact Printers (AREA)
Description
【発明の詳細な説明】
この発明は、インパクト式ドツトマトリツクス
プリンタ用ヘツドの印刷素子のガイド装置に関す
るものであり、その目的とするところは、印刷素
子の往復動を円滑にし、特に印刷素子の印刷面が
直進できて鮮明且つ、正確な印刷を可能ならしめ
んとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a guide device for a printing element in a head for an impact type dot matrix printer, and its purpose is to smooth the reciprocating movement of the printing element, and in particular to guide the printing element. The purpose is to enable clear and accurate printing with a straight printing surface.
従来、印刷素子に大径部を設け、該大径部にガ
イド穴を貫設し、該ガイド穴にガイドピンを挿入
して印刷素子の往復動をガイドするドツトマトリ
ツクスプリンタ用ヘツドが実開昭56−108542号公
報に記載されている。而して、該公報に記載され
ている印刷素子は薄板にて形成されたものではあ
るが、相互に積層されてはいない。但し、該公報
中、特に、第１図に記載されている印刷素子はそ
の後端部を大径にし、この大径部にガイド穴を貫
設し、ここにガイドピンを挿入し、而も、該印刷
素子の先端部位は案内板に設けられたガイド穴に
挿入されて往復動をなさしめている。このように
構成されると同公報にも記載されている如く、ガ
イド穴の製作が困難であり、且つ、印刷素子及び
ガイド穴の摩擦が激しく、精度の維持が困難とな
り、特に、印刷素子の側部に設けた突起部をアマ
チユアーに押圧して往動作用を為すものには全く
適しない。 Conventionally, heads for dot matrix printers have been put into practice, in which the printing element has a large diameter part, a guide hole is provided through the large diameter part, and a guide pin is inserted into the guide hole to guide the reciprocating movement of the printing element. It is described in Publication No. 56-108542. Although the printing element described in this publication is formed of thin plates, they are not laminated together. However, the printing element described in the publication, particularly in FIG. 1, has a rear end with a large diameter, a guide hole is formed through the large diameter part, and a guide pin is inserted therein, and The leading end portion of the printing element is inserted into a guide hole provided in a guide plate and reciprocated. As stated in the same publication, with this configuration, it is difficult to manufacture the guide hole, and the friction between the printing element and the guide hole is intense, making it difficult to maintain accuracy. It is completely unsuitable for a device that performs forward movement by pressing the protrusion provided on the side against the armature.
又、薄板で形成した印刷素子を積層し、且つ、
該印刷素子の側部に突起部を突設し、該突起部に
アマチユアーを押圧して往動作用を為さしめるも
のは、特開昭57−38166号公報に記載されている。
而して、該公報及び此種ドツトマトリツクスプリ
ンタ用ヘツドの印刷素子のガイド部を第１図に従
つて詳述する。同図に於て、
従来、此種ドツトマトリツクスプリンタ用ヘツ
ドの印刷素子のガイドは第１図に示す如く、外側
のケース５の内側面で印刷素子１をガイドしてい
たのである。然るときは、第４図の解説図矢印で
示すように、アマチユアー６の先端部で押圧され
るとき、印刷素子１はＡ点を中心としてケース５
の矢印方向、即ち、第４図の上方部ケース５の内
側面に押圧力が働くことになる。従つて、本来、
印刷素子１が直進すべき方向に対してθ1の角度で
摩擦力が働く為、当該摩擦力は大となり、前記ケ
ース５の摩擦面が摺損しそれだけガイド巾が大と
なり、印刷素子１の物理的直進に支障を来すこと
になるのである。勿論、印刷素子の後方部のケー
ス５にも同様にして摩耗は生じるが、印刷素子の
使命は紙面に対する正確なる印刷である為、後方
部のケースの摩耗は差程重大ではない。即ち、従
来は前述せる如く、前方部のケース（ガイド部）
の内側面に摩耗が生じ、印刷素子の往動運動に支
障を来し、印刷にジグザグ現象が生じる等の欠陥
があつた。そこで、この発明は上述せる従来技術
の有する一部の公知の技術を本願発明の上位概念
とし、更に、之等従来技術の有する上記欠陥を解
消すると共に積層される印刷素子をユニツトとし
てケース内に組込むために解決せらるべき技術的
課題が生じてくるのであり、本発明は該課題を解
決せんとして提案せられたものであり、薄板で形
成した印刷素子を積層し、且つ、該印刷素子はそ
の側方に突起部を突設し、該突起部へアマチユア
ーを押圧して往動作用を為し、更に、該印刷素子
の端部に大径部を設け、該大径部にガイド穴を貫
設し、該ガイド穴にガイドピンを挿入して成るイ
ンパクト式ドツトマトリツクスプリンタ用ヘツド
に於て、前記積層された印刷素子の前記大径部は
該印刷素子の両端部に設けて夫々ガイド穴が貫設
され、該ガイド穴にガイドピンが貫通して挿入さ
れており、且つ、之等各印刷素子は、前記ガイド
ピンの上下両端部に夫々固定された上下枠体間に
積層され、更に、該枠体はケースに嵌着されて固
定されることを特徴とするドツトマトリツクスプ
リンタ用ヘツドに於ける印刷素子のガイド装置を
提供せんとするものである。 In addition, printing elements formed of thin plates are laminated, and
JP-A-57-38166 discloses a device in which a protrusion is provided on the side of the printing element and an armature is pressed against the protrusion to perform forward movement.
The guide portion of the printing element of this publication and the head for this type of dot matrix printer will be described in detail with reference to FIG. In the figure, conventionally, the printing element 1 of this type of dot matrix printer head was guided by the inner surface of the outer case 5, as shown in FIG. In this case, as shown by the arrow in the explanatory diagram of FIG.
In other words, a pressing force acts on the inner surface of the upper case 5 in the direction of the arrow in FIG. Therefore, originally,
Since a frictional force acts at an angle of θ 1 with respect to the direction in which the printing element 1 should move straight, the frictional force becomes large, and the friction surface of the case 5 is damaged, and the guide width increases accordingly, causing physical problems of the printing element 1. This will hinder your ability to go straight to the target. Of course, wear occurs in the case 5 at the rear of the printing element in the same way, but since the mission of the printing element is accurate printing on the paper surface, the wear of the case at the rear is not so serious. That is, as mentioned above, conventionally, the front case (guide part)
Abrasion occurred on the inner surface of the printing element, hindering the forward movement of the printing element, and causing defects such as a zigzag phenomenon in printing. Therefore, this invention uses some of the known techniques of the above-mentioned prior art as a superordinate concept of the present invention, and furthermore solves the above-mentioned defects of the prior art, and also incorporates laminated printing elements as a unit in a case. Therefore, a technical problem that must be solved arises in order to incorporate the technology, and the present invention has been proposed as a solution to this problem. A protrusion is provided on the side of the print element, and an armature is pressed against the protrusion for forward movement.Furthermore, a large diameter portion is provided at the end of the printing element, and a guide hole is provided in the large diameter portion. In an impact-type dot matrix printer head in which a guide pin is inserted through the printing element and a guide pin is inserted into the guide hole, the large diameter portion of the laminated printing element is provided at both ends of the printing element and a guide pin is inserted into the guide hole. A hole is provided through the guide hole, and a guide pin is inserted through the guide hole, and each of the printing elements is stacked between upper and lower frames respectively fixed to the upper and lower ends of the guide pin, Another object of the present invention is to provide a guide device for a printing element in a dot matrix printer head, characterized in that the frame is fitted and fixed to a case.
以下、本発明の一実施例を別紙添付図面に従つ
て詳述する。尚、説明の都合上、従来公知に属す
る技術事項も同時に説明する。１は印刷素子であ
り、その長手方向両端部附近は大径に膨拡されて
いる。この大径部２にガイド穴３が貫設されてい
る。このガイド穴３は長手方向に長片部を形成さ
れており、これにガイドピン４が挿入され、而も
このガイドピン４は前記ガイド穴３の短片方向の
内径に当接できる程度の外径を有するが、このガ
イドピン４は固定されており、又、この断面形状
は丸型或は角型を問わない。このガイドピン４を
ガイドとして、前記印刷素子１はガイド穴３の長
片方向に往復動できるようになつている。勿論、
この印刷素子１は所定数だけ積層され、その上下
に枠板７，７が当接されているが、この枠板７，
７はガイドピン４の上下の端部に定着され、更
に、該ガイドピン４の上下の溝４ａ，４ａにはキ
ヤツプ７′が挿着されており、従つて、印刷素子
１，１の上下のものが前記枠板７，７に直接当接
しないようにしてある。而も、該枠板７，７はケ
ース９に嵌着されて固定されることになる。尚、
印刷素子１にはアマチユアー６で押圧されて往動
する為の突起部８と、該印刷素子１を復動させる
為の復動用スプリング１０の押圧用突起部８′が
形成されている。 Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings. For convenience of explanation, conventionally known technical matters will also be explained at the same time. Reference numeral 1 denotes a printing element, and the vicinity of both ends in the longitudinal direction thereof is expanded to a large diameter. A guide hole 3 is provided through the large diameter portion 2. This guide hole 3 is formed with a long piece in the longitudinal direction, into which a guide pin 4 is inserted, and this guide pin 4 has an outer diameter that is large enough to come into contact with the inner diameter of the guide hole 3 in the short side direction. However, this guide pin 4 is fixed, and its cross-sectional shape may be round or square. Using this guide pin 4 as a guide, the printing element 1 can reciprocate in the longitudinal direction of the guide hole 3. Of course,
A predetermined number of printing elements 1 are stacked, and frame plates 7, 7 are abutted on the upper and lower sides of the printing elements 1.
7 are fixed to the upper and lower ends of the guide pin 4, and caps 7' are inserted into the upper and lower grooves 4a, 4a of the guide pin 4, so that the upper and lower ends of the printing elements 1, 1 are fixed. Objects are prevented from coming into direct contact with the frame plates 7, 7. Moreover, the frame plates 7, 7 are fitted and fixed to the case 9. still,
The printing element 1 is formed with a protrusion 8 for forward movement by being pressed by an armature 6, and a pressing protrusion 8' of a spring 10 for backward movement for causing the printing element 1 to move backward.
この実施例は叙述せる如き構成に係るから、例
えば第５図に示す如く、アマチユアー６で印刷素
子１を往動せしめるときは、図示のA′点を中心
として該印刷素子１自体が回動する方向に力が作
用する。然るときは、印刷素子１自体の先端大径
部２に設けられたガイド穴３内に丁度ガイドピン
４が挿入されている関係上、第５図に於て、ガイ
ドピン４の下方部に前記印刷素子１のガイド穴３
の内側面が当接する。従つて、印刷素子１が本来
直進すべき方向に対してθ2の角度だけ摩擦力が当
該当接部に働くことになる。このθ2は前記の従来
の摩擦力、即ちθ1の角度に相当する摩擦力に対し
ては遥かに小なる摩擦力である。（θ1＞θ2）然る
ときは、印刷素子１の往動運動も殆んど直進であ
り、摩擦力も小であるから摩擦面の摩耗も殆んど
なく、従つて印刷素子１はガイドピン４によつて
常に正確に往動運動がガイドされ、印刷素子１の
印刷面も正確に紙面上に押叩されるので、従来の
ような印刷のジグザグ現象が生じることはなく、
鮮明なる印刷が可能となり、更に、積層される印
刷素子１の両端部はガイドピン４並びに、該ガイ
ドピン４の上下両端部に固定されている上下枠体
７間に介装して積層されているので、該上下枠体
をケース９内に嵌着するだけで固定でき、従つ
て、該印刷素子１はケース９外で予めユニツト化
することができるので、組立ても簡便となつて生
産性が向上すると共に、消費電力も低減すること
ができる。 Since this embodiment has the configuration described above, when the printing element 1 is moved forward by the armature 6, for example as shown in FIG. 5, the printing element 1 itself rotates around the illustrated point A'. A force acts in the direction. In such a case, since the guide pin 4 is just inserted into the guide hole 3 provided in the large diameter portion 2 of the tip of the printing element 1 itself, the lower part of the guide pin 4 in FIG. Guide hole 3 of the printing element 1
The inner surfaces of the two are in contact with each other. Therefore, a frictional force acts on the abutting portion at an angle of θ 2 with respect to the direction in which the printing element 1 should originally move straight. This θ 2 is a much smaller friction force than the conventional friction force described above, that is, the friction force corresponding to the angle θ 1 . (θ 1 > θ 2 ) In this case, the forward motion of the printing element 1 is almost straight forward, and the frictional force is small, so there is almost no wear on the friction surface, and therefore the printing element 1 is guided The forward motion is always accurately guided by the pin 4, and the printing surface of the printing element 1 is also accurately pressed onto the paper surface, so the zigzag phenomenon of printing as in the conventional case does not occur.
Clear printing is possible, and furthermore, both ends of the printing elements 1 to be stacked are interposed between the guide pin 4 and the upper and lower frames 7 fixed to the upper and lower ends of the guide pin 4, respectively. Since the upper and lower frames can be fixed by simply fitting them into the case 9, the printing element 1 can be assembled into a unit beforehand outside the case 9, which simplifies assembly and improves productivity. At the same time, power consumption can be reduced.
第１図は従来の印刷素子のガイド装置を示す解
説横断平面図、第２図は本発明の実施例であり、
組立てられた全体の横断平面図、第３図は第２図
Ａ−Ａ線断面図、第４図は従来の印刷素子のガイ
ド方式を示す解説平面図、第５図は本発明の実施
例であり、その印刷素子のガイド方式を示す解説
平面図である。
符号説明 １……印刷素子、２……大径部、３
……ガイド穴、４……ガイドピン、７……枠体、
９……ケース。
FIG. 1 is an explanatory cross-sectional plan view showing a conventional guide device for a printing element, and FIG. 2 is an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2, FIG. 4 is an explanatory plan view showing a conventional printing element guide system, and FIG. FIG. 4 is an explanatory plan view showing the guide method of the printing element. Explanation of symbols 1...Printing element, 2...Large diameter section, 3
... Guide hole, 4 ... Guide pin, 7 ... Frame,
9...Case.
Claims (1)
印刷素子はその側方に突起部を突設し、該突起部
へアマチユアーを押圧して往動作用を為し、更
に、該印刷素子の端部に大径部を設け、該大径部
にガイド穴を貫設し、該ガイド穴にガイドピンを
挿入して成るインパクト式ドツトマトリツクスプ
リンタ用ヘツドに於て、前記積層された印刷素子
の前記大径部は該印刷素子の両端部に設けて夫々
ガイド穴が貫設され、該ガイド穴にガイドピンが
貫通して挿入されており、且つ、之等各印刷素子
は、前記ガイドピンの上下両端部に夫々固定され
た上下枠体間に積層され、更に、該枠体はケース
に嵌着されて固定されることを特徴とするドツト
マトリツクスプリンタ用ヘツドに於ける印刷素子
のガイド装置。1. Printing elements formed of thin plates are stacked, and the printing elements have protrusions protruding from the sides thereof, and an armature is pressed against the protrusions for forward movement, and furthermore, the printing elements are In the head for an impact type dot matrix printer, the head for an impact type dot matrix printer is provided with a large diameter part at the end, a guide hole is formed through the large diameter part, and a guide pin is inserted into the guide hole. The large diameter portions are provided at both ends of the printing element, and guide holes are formed therethrough, and guide pins are inserted through the guide holes, A guide for a printing element in a head for a dot matrix printer, characterized in that the guide is stacked between upper and lower frames fixed to both upper and lower ends of the dot matrix printer head, and the frame is further fitted and fixed to a case. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4579683A JPS59192580A (en) | 1983-03-18 | 1983-03-18 | Guide device for printing element in head for dot matrix printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4579683A JPS59192580A (en) | 1983-03-18 | 1983-03-18 | Guide device for printing element in head for dot matrix printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59192580A JPS59192580A (en) | 1984-10-31 |
| JPH0216702B2 true JPH0216702B2 (en) | 1990-04-18 |
Family
ID=12729234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4579683A Granted JPS59192580A (en) | 1983-03-18 | 1983-03-18 | Guide device for printing element in head for dot matrix printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59192580A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61133340U (en) * | 1985-02-09 | 1986-08-20 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5738166A (en) * | 1980-08-18 | 1982-03-02 | Bunzo Sekiguchi | Dot matrix printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56108542U (en) * | 1980-01-23 | 1981-08-22 |
-
1983
- 1983-03-18 JP JP4579683A patent/JPS59192580A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5738166A (en) * | 1980-08-18 | 1982-03-02 | Bunzo Sekiguchi | Dot matrix printer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59192580A (en) | 1984-10-31 |
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