JPH0341079B2

JPH0341079B2 -

Info

Publication number: JPH0341079B2
Application number: JP59076940A
Authority: JP
Priority date: 1984-04-17
Filing date: 1984-04-17
Publication date: 1991-06-20
Also published as: JPS60220799A

Description

【発明の詳細な説明】産業上の利用分野本発明はＸ−Ｙプロツター等のペン式印字装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a pen-type printing device such as an X-Y plotter.

従来例の構成とその問題点従来、Ｘ−Ｙプロツター等のペン式印字装置に
おいて、印字用のペンを保持する手段として、第
１図に示すものがあつた。Conventional configuration and problems thereof Conventionally, in a pen-type printing device such as an X-Y plotter, there has been a device shown in FIG. 1 as a means for holding a printing pen.

第１図において、印字用のペン１は、キヤリツ
ジ２に設けられたペン保持筒３内に挿入されてい
る。又、ペン１は通常はペン戻しバネ４により、
記録紙５から離されているが、電磁石の可動芯
（図示せず）に一体に取り付けられたペン押棒６
の動きにより、記録紙５に押し当てられ、印字が
可能となる。 In FIG. 1, a printing pen 1 is inserted into a pen holding cylinder 3 provided in a carriage 2. As shown in FIG. In addition, the pen 1 is normally operated by a pen return spring 4.
A pen push rod 6 is separated from the recording paper 5 but is integrally attached to a movable core of an electromagnet (not shown).
By this movement, it is pressed against the recording paper 5 and printing becomes possible.

上記の構成において、ペン保持筒３の内径は一
般に小さいため、ペン保持筒３の底部にバネを取
り付けることは難しく、接着などによつて取り付
けられていたため、生産性が悪いものであつた。 In the above configuration, since the inner diameter of the pen holding tube 3 is generally small, it is difficult to attach the spring to the bottom of the pen holding tube 3, and the spring is attached by adhesive or the like, resulting in poor productivity.

発明の目的本発明はＸ−Ｙプロツター等のペン式印字装置
の印字用ペンを保持するペン保持筒内にペン戻し
バネを容易に取り付けられるようにし、製作を容
易にすることを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to enable a pen return spring to be easily installed in a pen holding cylinder that holds a printing pen of a pen-type printing device such as an X-Y plotter, thereby facilitating manufacturing.

発明の構成この目的を達成するために本発明は内径よりも
広い部分をペン保持筒の内部に設け、この部分に
コイルばねが係合し、該ペン保持筒の内係よりも
長い長軸を有する楕円形状巻線部をコイルばねに
設けてなる。Structure of the Invention In order to achieve this object, the present invention provides a portion inside the pen holding tube that is wider than the inner diameter, a coil spring is engaged with this portion, and a long axis that is longer than the inner diameter of the pen holding tube. The coil spring is provided with an elliptical winding portion having a shape.

実施例の説明以下本発明の一実施例について、図面を参照し
ながら説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

第２図は本発明の一実施例における、ペン式記
録装置の側断面図である。ここで従来例のものと
同一のものについては同一の番号を付す。 FIG. 2 is a side sectional view of a pen type recording device in one embodiment of the present invention. Components that are the same as those of the conventional example are given the same numbers.

第２図において、印字用のペン１はペン保持筒
７に挿入され保持されている。又、ペン保持筒７
は、キヤリツジ２に軸８を中心に回動自在に取り
付けられペン固定爪９により固定されている。
又、ペン保持筒７の周面には貫通した切り込み１
０が設けられ、この切り込み１０内にペン戻しバ
ネ１１の末端が係合されている。またペン戻しバ
ネ１１の末端は切り込みに係合しやすいようにダ
円形をしている。 In FIG. 2, a printing pen 1 is inserted into a pen holding cylinder 7 and held therein. Also, the pen holding tube 7
is attached to the carriage 2 so as to be rotatable about a shaft 8, and is fixed by a pen fixing claw 9.
In addition, the pen holding cylinder 7 has a penetrating notch 1 on its circumferential surface.
0 is provided in which the distal end of the pen return spring 11 is engaged. Further, the end of the pen return spring 11 has a round shape so that it can be easily engaged with the notch.

上記の構成の組み立てに際しては、ペン戻しバ
ネ１１を少しおし縮めてペン保持筒７へ押し込む
と、ペン戻しバネ１１の末端とペン保持筒７の切
り込み１０が一致した時、ペン戻しバネ１１の末
端がペン保持筒７の切り込み１０の中へ落ち込
む。 When assembling the above structure, when the pen return spring 11 is slightly compressed and pushed into the pen holding cylinder 7, when the end of the pen return spring 11 and the notch 10 of the pen holding cylinder 7 are aligned, the pen return spring 11 is The end falls into the notch 10 of the pen holding barrel 7.

また、切り込み１０は貫通して形成されている
ため、簡単な金型で形成することができる。 Moreover, since the notch 10 is formed penetratingly, it can be formed with a simple mold.

発明の効果以上のように本発明はペン保持筒の内部に内径
よりも広い部分を設け、ペンに付勢力を与えるコ
イルばねに設けたペン保持筒の内径よりも長い長
径を有する楕円巻線部でペン保持筒の内部の内径
の広い部分に固定するようにしたのでコイルばね
の取り付けが簡単になる。Effects of the Invention As described above, the present invention provides a portion wider than the inner diameter inside the pen holding tube, and an elliptical winding portion having a major axis longer than the inner diameter of the pen holding tube provided on the coil spring that applies biasing force to the pen. Since it is fixed to the wide inner diameter part of the pen holding tube, the coil spring can be easily installed.

[Brief explanation of the drawing]

第１図は従来例の要部拡大断面図、第２図は本
発明の一実施例における要部拡大側断面図、第３
図は第２図のＡ−A′断面図、第４図は本発明の
一実施例におけるＸ−Ｙプロツターの要部斜視図
である。１……ペン、２……キヤリツジ、７……ペン保
持筒、１０……切り込み、１１……ペン戻しバ
ネ。 FIG. 1 is an enlarged sectional view of the main part of a conventional example, FIG. 2 is an enlarged side sectional view of the main part of an embodiment of the present invention, and FIG.
The figure is a sectional view taken along the line A-A' in FIG. 2, and FIG. 4 is a perspective view of essential parts of an X-Y plotter according to an embodiment of the present invention. 1... Pen, 2... Carriage, 7... Pen holding tube, 10... Notch, 11... Pen return spring.

Claims

[Scope of Claims] 1. A carriage that is moved along a platen, a pen holding cylinder that is placed on the carriage and is configured with a cylinder that has a part wider than its inner diameter inside, and the pen holding cylinder has: and a coil spring that is inserted and applies a biasing force to the pen inserted into the pen holding cylinder, and the coil spring is engaged with a portion wider than the inner diameter of the pen holding cylinder, and the coil spring is engaged with a portion wider than the inner diameter of the pen holding cylinder. An X-Y plotter characterized in that it is provided with an elliptical winding portion having a long axis longer than that of the X-Y plotter.