JPS60191343U - Electromagnetic device for dot printer print head - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の電磁石装置の第１実施例の断面図、第
２図は同第２実施例の断面図、第３図は第２実施例の電
磁石装置を印字ヘッドに組み込んだ時の断面図、第４図
は電磁石装置を従来例に示す断面図、第５図は回能の従
来例を示す断面図、第６図はヨークブロックを二段研摩
した従来例を示す断面図。 １０：第１ヨーク、１０ａ：中央片、１０ｂ＝第１側片
、１０ｃ：第２側片、１０ｄ：支持面、１０ｅ：第１接
極面、１１：接極板、１１ａ：第２接極面、１２．２０
：第２ヨーク、１３：永久□磁石、１４，２１：第３ヨ
ーク、１５：アマチュア、′１６：コイル。Fig. 1 is a sectional view of the first embodiment of the electromagnet device of the present invention, Fig. 2 is a sectional view of the second embodiment, and Fig. 3 is a sectional view of the electromagnet device of the second embodiment when it is assembled into a print head. 4 is a sectional view showing a conventional example of an electromagnetic device, FIG. 5 is a sectional view showing a conventional example of a rotator, and FIG. 6 is a sectional view showing a conventional example in which a yoke block is polished in two stages. 10: first yoke, 10a: central piece, 10b = first side piece, 10c: second side piece, 10d: support surface, 10e: first armature surface, 11: armature plate, 11a: second armature Surface, 12.20
: Second yoke, 13: Permanent □ magnet, 14, 21: Third yoke, 15: Amateur, '16: Coil.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１側片の先端面を第１磁極面とし中央片の先端面を支
持面としこの画先端面と第２側片の先端面を同一平面と
すると共に各ヨーク片の基端を連結子る第１ヨークと、
前記第１磁極面と所定空隙を介して対峙する第２磁極面
を有する磁極板と、該磁極板と永久磁石を介して磁気結
合すると共に前記第１ヨークの第２側片の先端面と磁気
結合する第２ヨーク、と、基端部は第１ヨークの中央片
の支持面に当接して動作支点となし中間部は第１、第２
接極面間を往復動するアマチュアと１、該アマチュアを
駆動するコイルとで成るドツトプリンタ印字ヘッドの電
磁石装置に於いて、前記第１ヨークの第２側片と第２ヨ
ーク間に第１、第２磁極面間の空隙距離を決定する第３
ヨークを介在したことを特徴とするドツトプリンタ印字
ヘッドの電磁石装置。The front end surface of the first side piece is a first magnetic pole surface, the front end surface of the center piece is a support surface, the front end surface of this image and the front end surface of the second side piece are on the same plane, and the base ends of each yoke piece are connected to each other. a first yoke;
a magnetic pole plate having a second magnetic pole face facing the first magnetic pole face with a predetermined gap therebetween; and a magnetic pole plate that is magnetically coupled to the magnetic pole plate via a permanent magnet and is magnetically coupled to the tip surface of the second side piece of the first yoke. The second yoke to be coupled has a proximal end that comes into contact with the support surface of the central piece of the first yoke to serve as an operating fulcrum;
In an electromagnetic device for a dot printer print head, which is composed of an armature that reciprocates between the armatures and a coil that drives the armature, first and second armatures are arranged between the second side piece of the first yoke and the second yoke. The third step determines the air gap distance between the two magnetic pole faces.
An electromagnetic device for a dot printer print head characterized by having a yoke interposed therebetween.