JPS6069645U

JPS6069645U - print head

Info

Publication number: JPS6069645U
Application number: JP16320083U
Authority: JP
Inventors: 惇夫坂井田; 川浦　正章; 近岡　保二; 博岩田; 浅野　清満
Original assignee: ブラザー工業株式会社; 日本通信技術株式会社
Priority date: 1983-10-20
Filing date: 1983-10-20
Publication date: 1985-05-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はプリントヘッドを一部破断して示す斜視図、第
２図はプリントヘッドの路体断面図、第３図は作動体の
拡大斜視図、第４図は第３図へ−Ａ線の拡大断面図、第
５図は第３図Ｂ−Ｂ線の拡大断面図、第６図は印字動作
を示す路体縦断面図である。図中２０叫ホルダ、２１はアーマチュア、２１ａは対向
端部、２２はトーションばね、２２ｄ。２３　ａ、　２３　ｂは二叉部、２４ａ、２４ｂは切欠
、２６は切欠、２８は印字ワイヤである。第１図第３図Fig. 1 is a partially cutaway perspective view of the print head, Fig. 2 is a cross-sectional view of the print head, Fig. 3 is an enlarged perspective view of the operating body, and Fig. 4 is a line A to Fig. 3. FIG. 5 is an enlarged sectional view taken along line BB in FIG. 3, and FIG. 6 is a longitudinal sectional view of the road body showing the printing operation. In the figure, 20 is a holder, 21 is an armature, 21a is an opposite end, 22 is a torsion spring, and 22d. 23a and 23b are two forks, 24a and 24b are notches, 26 is a notch, and 28 is a printing wire. Figure 1 Figure 3

Claims

[Scope of utility model registration request]

In a print head for a dot printer, which is rotatably supported by a holder and configured to rotationally drive an armature having a printing wire at its tip to print at the tip of the printing wire, the holder and the armature have opposite ends. A torsion spring having a polygonal cross section is provided, the forked end being formed on one of the forked ends and the other end being located between the two forked ends, and the forked end and the other end are each provided with a torsion spring having a polygonal cross section. 1. A print head characterized in that a notch into which a torsion spring can be fitted is formed, the torsion spring is fitted and fixed in each of the notches, and an armature is rotatably supported by a holder.