JPS6069667U

JPS6069667U - Typewriter ribbon lift mechanism

Info

Publication number: JPS6069667U
Application number: JP16266183U
Authority: JP
Inventors: 塩田　淳司; 鉄治不破
Original assignee: ブラザー工業株式会社
Priority date: 1983-10-20
Filing date: 1983-10-20
Publication date: 1985-05-17
Also published as: JPH025970Y2

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〜第６図はこの考案を具体化した一実施例を示す
ものであって、第１図ａはタイプライタの側断面図、第
１図すは訂正リボンを印字位置に配置した状態を示す側
断面図、第２図は部分平断面図、第３図はリボンリフト
カムの断面図、第４図はリボンリフトカムのカム線図、
第５図は駆動手段としての回路を示す図、第６図はタイ
ムチャートである。第７図はリボンリフトカムの従来例
を示す断面図である。ホルダー・・・３、駆動モータ・・・６ａ、リボンリフ
トカム・・・７、第１カム部・・・８、第２カム部・・
・９、カムフォロア・・・１５、切換レバー・・・１６
、電磁石・・・２７、引張ばね・・・２９、訂正ＩＪ、
ｆン・・・Ｃ１印字リボン−・・・Ｒ０Figures 1 to 6 show an embodiment of this invention, in which Figure 1a is a side sectional view of the typewriter, and Figure 1A shows the state in which the correction ribbon is placed at the printing position. Fig. 2 is a partial plan sectional view, Fig. 3 is a sectional view of the ribbon lift cam, Fig. 4 is a cam diagram of the ribbon lift cam,
FIG. 5 is a diagram showing a circuit as a driving means, and FIG. 6 is a time chart. FIG. 7 is a sectional view showing a conventional example of a ribbon lift cam. Holder...3, Drive motor...6a, Ribbon lift cam...7, First cam part...8, Second cam part...
・9, Cam follower...15, Switching lever...16
, Electromagnet...27, Tension spring...29, Correction IJ,
f...C1 printing ribbon...R0

Claims

[Claims for Utility Model Registration] Both ribbons C and R are supported so that the correction ribbon C is positioned below the printing ribbon R, and both ribbons C and R are supported so that the correction ribbon C is positioned below the printing ribbon R.
A holder 3 is swingably supported to selectively place the printing ribbon R in the upper printing position, and is always urged toward the printing position by a spring 4.
a first cam portion 8 for arranging it at a printing position;
It has a second cam part 9 formed continuously with the cam part 8 for arranging the correction ribbon C at the printing position, and has a second cam part 9 formed continuously with the cam part 8,
a ribbon lift cam 7 that is rotationally driven at a point a; one cam follower 15 connected to the holder 3 and operated following the ribbon lift cam 7; and the cam follower 15 always being in the first position during printing operation. The cam follower 15 acts on the cam follower 15 at the operating position to follow the cam part 8 and during the correction printing operation.
a switching lever 16 which can be switched to an inactive position in which it does not act on the cam follower 15 in order to allow the cam follower to be operated following the second cam portion 9, and which is always held in the active position by a spring 29; , an electromagnet 27 that is activated during the correction printing operation to move the switching lever 16 to a non-acting position against the biasing force of the spring 29; A typewriter ribbon lift mechanism consisting of a drive means that drives at a lower speed than the conventional typewriter.