JPS609640U

JPS609640U - print head

Info

Publication number: JPS609640U
Application number: JP10149583U
Authority: JP
Inventors: 昭雄矢野
Original assignee: 富士通株式会社
Priority date: 1983-06-30
Filing date: 1983-06-30
Publication date: 1985-01-23

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はシリアルドツトプリンタの概要を示す平面図、
第２図は印字ヘッドの斜視図、第３図は従来の印字ヘッ
ドの縦断面図、第４図はアーマチュア兼板バネの平面図
、第５図はアーマチュア機能とアーマチュア支持板バネ
が独立した従来の印字ヘッドの側面図と側磁路の断面図
、第６図は従来の板バネの振動を示す模式図、第７図は
ワイヤの動作を示す図である。第８図以下は本考案によ
る印字ヘッドの実施例を示すもので、第８図は第１の実
施例を示す側面図、第９図は同実施例における板バネの
動作を示す模式図、第１０図は第２の実施例を示す要部
断面図、第１１図は同実施例における板バネ、の動作を
示す模式図である。図において、Ｗ、Ｗｌ、Ｗ２・・・・・・Ｗ９はワイヤ
、１４．１４２は板バネ、１６はアーマチュア、１６ａ
はアーム、１６ｂは支点部、１７は補助ヨーク、１９は
ストッパー、１９ａは支持部材をそれぞれ示す。第８図第９図補正　昭５８．１１．−２８実用新案登録請求の範囲を次のように補正する。 ■実用新案登録請求の範囲インクリボンを介して印字媒体にインパクトを加えるこ
とにより印字を行なうワイヤを備え、該・　　ワイヤを
固定するアーマチュア部が鉄心から開放されるときの板
バネのバネ力でワイヤにインパクト力を加える釈放型の
印字ヘッドにおいて、板バネの前記鉄心に対し反対の面
に位置し、該アーマチュアの仮想回転中心となる位置（
ビ、該板バネの振動を抑制する部材を配設したことを特
徴とする印字ヘッド。Figure 1 is a plan view showing the outline of a serial dot printer.
Figure 2 is a perspective view of the print head, Figure 3 is a longitudinal sectional view of a conventional print head, Figure 4 is a plan view of the armature/plate spring, and Figure 5 is a conventional one in which the armature function and armature support plate spring are independent. FIG. 6 is a schematic diagram showing the vibration of a conventional leaf spring, and FIG. 7 is a diagram showing the operation of a wire. Figure 8 and subsequent figures show examples of the print head according to the present invention. Figure 8 is a side view showing the first example, Figure 9 is a schematic diagram showing the operation of the leaf spring in the same example, and Figure 9 is a schematic diagram showing the operation of the leaf spring in the same example. FIG. 10 is a sectional view of a main part showing the second embodiment, and FIG. 11 is a schematic diagram showing the operation of the leaf spring in the same embodiment. In the figure, W, Wl, W2...W9 are wires, 14.142 is a leaf spring, 16 is an armature, 16a
16b is an arm, 17 is an auxiliary yoke, 19 is a stopper, and 19a is a supporting member. Figure 8 Figure 9 Correction November 1982. -28 The scope of claims for utility model registration shall be amended as follows. ■ Scope of Utility Model Registration Claims It is equipped with a wire that performs printing by applying an impact to the printing medium through an ink ribbon, and when the armature part that fixes the wire is released from the iron core, the wire is generated by the spring force of the leaf spring. In a release type print head that applies an impact force to
B. A print head characterized in that a member for suppressing vibration of the plate spring is provided.

Claims

[Claim for Utility Model Registration] When the armature of a wire-type print head that prints by applying an impact to the print medium via an ink ribbon using a plurality of wires driven by electromagnets is released from the iron core. In a release-type print head that applies an impact using the spring force of a leaf spring, the vibration of the leaf spring is applied to the back of the leaf spring (the position opposite to the iron core) at the position that is the virtual center of rotation of the leaf spring. A print head characterized in that a suppressing member is provided.