JPS6032040U

JPS6032040U - Electromagnetic mechanism

Info

Publication number: JPS6032040U
Application number: JP12505383U
Authority: JP
Inventors: 政行田中
Original assignee: 富士通株式会社
Priority date: 1983-08-12
Filing date: 1983-08-12
Publication date: 1985-03-05

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図は従来方法を示す側面図ミ
第３図は印字ヘッドの側断面図、第４図は異なる従来例
を示す側面図、第５図は第２図〜第４図を説明するグラ
フ、第６図は本考案による実施例を示す側面図、第７図
は第６図を説明するグラフである。図において、１１は印字ヘッド、１ｌａ−は印字マグネ
ット、１２はコア、１３はコイル、１４はアーマチア、
１５は印字ワイヤー、１６はヨーク、１７はカバ一部材
、１８はストッパ、２０〜２４は復旧バネを示す。- Figure 1 is a plan view showing an outline of a wire tod printer to which the present invention is applied, Figure 2 is a side view showing a conventional method, Figure 3 is a side sectional view of the print head, and Figure 4 is a different conventional example. 5 is a graph illustrating FIGS. 2 to 4, FIG. 6 is a side view illustrating an embodiment of the present invention, and FIG. 7 is a graph illustrating FIG. 6. In the figure, 11 is a print head, 1la is a printing magnet, 12 is a core, 13 is a coil, 14 is an armature,
15 is a printing wire, 16 is a yoke, 17 is a cover member, 18 is a stopper, and 20 to 24 are recovery springs.

Claims

[Scope of utility model registration request]

It has an armachia energized by a recovery spring, an electromagnet consisting of a core and a coil provided opposite to the armachia, and a yoke forming a magnetic path together with the armature, and the electromagnet is intermittently energized. An electromagnetic magnet mechanism for attracting and releasing the armature from the core, wherein the recovery spring includes a plurality of springs with different spring constants, the spring with a small spring constant has an initial pressure when the armature is attracted, and the spring An electromagnetic magnet mechanism characterized in that a spring having a large constant is arranged at a position where it contacts and presses the armature while the armature is being attracted.