JPS60137549U

JPS60137549U - Dot printer electromagnetic device

Info

Publication number: JPS60137549U
Application number: JP2632684U
Authority: JP
Inventors: 好信岡田; 正晴北堂
Original assignee: 松下電工株式会社
Priority date: 1984-02-23
Filing date: 1984-02-23
Publication date: 1985-09-12

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図は一般的なドツトプリンタの電磁石装置を示す縦
断面図、第２図乃至第４図は本考案の一実施例を示すも
ので、第２図はコイル消磁時の縦断面図、第３図はコイ
ル励磁時の縦断面図、第４図は要部断面図である。１・・・ヨーク、４・・・永久磁石、６・・・補助ヨー
ク、９・・・コイル、１０・・・釈放ばね、１１・・・
アマチア、１４・トアーム、１５・・・印字ワイヤ。Fig. 1 is a longitudinal sectional view showing an electromagnet device of a general dot printer, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a longitudinal sectional view when the coil is demagnetized, The figure is a longitudinal cross-sectional view when the coil is excited, and FIG. 4 is a cross-sectional view of the main part. DESCRIPTION OF SYMBOLS 1... Yoke, 4... Permanent magnet, 6... Auxiliary yoke, 9... Coil, 10... Release spring, 11...
Amathia, 14・Toarm, 15... Printing wire.

Claims

[Scope of utility model registration request]

a yoke formed in a U-shape with two legs facing each other;
A permanent magnet is inserted in the middle of the yoke, one end is fixed to one leg of the yoke, the other end extends near the end face of the other leg, and the other end is substantially overlapped with the other leg. a coil wound around the other leg of the yoke to offset the magnetic attraction force of the permanent magnet; a release spring whose base end is fixed to the yoke; One end surface of both legs forming a shape is fixed to the free end of the release spring, and the outer surface of the connecting piece is opposite to the end surface of the other leg, and the connecting piece is displaceably disposed within the opening. The amatia is attracted to the end face of the other leg during demagnetization, and the adhesion bar is released to operate when the coil is energized, and an arm for driving the printing wire is provided to follow the amatia, and the amatia and the yoke are attached to each other. An electromagnet device for a dot printer, characterized in that an attraction surface for a dot printer is provided inside the coil in the longitudinal direction.