JPS5961944U

JPS5961944U - print head

Info

Publication number: JPS5961944U
Application number: JP15612282U
Authority: JP
Inventors: 谷田　俊史; 渡会　慎一
Original assignee: 富士通株式会社
Priority date: 1982-10-15
Filing date: 1982-10-15
Publication date: 1984-04-23

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 the drawing]

第１図は本考案が適用されるワイヤートッドプリンタの
概要を示す平面図、第２図は第１図の印字マグネットを
示す斜視図、第３図は第２図の側面図、第４図は第１図
の印字ヘッドの側面図、第５図は第４図のアーマチア部
の背面図、第６図は本考案による実施例を示す側面図で
ある。図において、１はコア、２はコ・イル、３はアーマチア
、４は印字ワイヤー、６は駆動バネ、７ａ。７ｂ、７ｅは磁路部、７Ｃ，７ｄ、７ｆは磁気バイバス
部、７ｇ、７ｈはスプリング、８は永久磁石、２１は印
字ヘッド、２１ａは印字マグネットを示す。見１　図、ＡFig. 1 is a plan view showing an outline of a wire tod printer to which the present invention is applied, Fig. 2 is a perspective view showing the printing magnet shown in Fig. 1, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a FIG. 5 is a side view of the print head shown in FIG. 1, FIG. 5 is a rear view of the armature section shown in FIG. 4, and FIG. 6 is a side view showing an embodiment of the present invention. In the figure, 1 is a core, 2 is a coil, 3 is an armature, 4 is a printing wire, 6 is a drive spring, and 7a. 7b and 7e are magnetic path parts, 7C, 7d, and 7f are magnetic bypass parts, 7g and 7h are springs, 8 is a permanent magnet, 21 is a print head, and 21a is a print magnet. See 1 Figure, A

Claims

[Scope of utility model registration request]

an armature having a printing wire at one end and supported by a drive spring; an electromagnet provided opposite to the armature and causing the printing wire to drive printing by intermittent a magnetic field with the armature as a magnetic path; When the electromagnet is not excited, a permanent magnet attracts the armature against the elasticity of the drive spring, and a magnet base that accommodates a plurality of pairs of the electromagnet and the armature and has a magnetic bypass member for the permanent magnet. a release type print head, which excites the electromagnet to eliminate the attraction force of the attracted armature, and drives the printing wire by the restoring force of the drive spring; A print head characterized in that the magnetic bypass member is separated from the magnet base, and the magnetic bypass member and the permanent magnet are coupled by an elastic member.