JPS61115674U

JPS61115674U -

Info

Publication number: JPS61115674U
Application number: JP19995484U
Authority: JP
Priority date: 1984-12-29
Filing date: 1984-12-29
Publication date: 1986-07-22
Also published as: JPH047984Y2

Description

[Brief explanation of the drawing]

第１図は本考案を具体化した一実施例の側断面
図、第２図は第１図からハンマーカムの動作に関
する部分を抽出した部分側断面図、第３図は第１
図からリボン送りカムの動作に関する部分を抽出
した部分側断面図、第４図はホルダ揺動カムを破
断して示す第１図の部分背面図、第５図はリボン
送り手段を示す平断面図、第６図は印字動作時の
状態説明図、第７図は訂正動作時の状態説明図で
ある。図中、１０は印字用紙、１１はプラテン、２２
は駆動軸、３１はリボン送りカム、４０はホルダ
、７０は印字ハンマー、７５は活字ホイール、７
５ａは印字素子、８０はリボン送りカムフオロア
（連結部材）、Ｒは印字リボン、Ｃは訂正リボン
、Ｐは印字位置である。 Fig. 1 is a side sectional view of an embodiment embodying the present invention, Fig. 2 is a partial side sectional view extracting a portion related to the operation of the hammer cam from Fig. 1, and Fig. 3 is a side sectional view of an embodiment embodying the present invention.
FIG. 4 is a partial rear view of FIG. 1 with the holder swing cam cut away, and FIG. 5 is a plan sectional view showing the ribbon feeding means. , FIG. 6 is an explanatory diagram of the state during printing operation, and FIG. 7 is an explanatory diagram of the state during correction operation. In the figure, 10 is printing paper, 11 is a platen, 22
is a drive shaft, 31 is a ribbon feeding cam, 40 is a holder, 70 is a printing hammer, 75 is a printing wheel, 7
5a is a printing element, 80 is a ribbon feeding cam follower (connecting member), R is a printing ribbon, C is a correction ribbon, and P is a printing position.

Claims

[Claims for Utility Model Registration] 1. A platen 11 on which printing paper 10 is attached;
A carriage that is reciprocated along the longitudinal direction of the platen 11, a printing ribbon R, and a correction ribbon C.
a holder 40 that holds a holder 40 and is vertically movably supported on the carriage; and a type wheel 7 that is mounted on the carriage and has a plurality of printing elements 75a.
5, and a printing hammer 70 for stamping the type wheel 75 using power from a drive source, and by moving the holder 40 up and down, one of the ribbons R and C can be selectively moved to the printing position P. In printing devices such as typewriters and printers that are placed in the holder 40 and perform printing and correction operations, the printing ribbon
a ribbon feeding means for winding up the correction ribbon C;
has a connecting member that is disconnected from the ribbon feeding means when it is placed at the printing position P, and when the printing ribbon R is placed at the printing position P, the connection from the drive source is released through the connecting member. A ribbon feeding device comprising: power transmission means for transmitting power to the ribbon feeding means. 2 The power transmission means includes a ribbon feeding cam 31 provided on the drive shaft 22 and the ribbon feeding cam 3.
1, and the ribbon feeding cam follower 80 as the connecting member is rotated by the ribbon feeding means 80, and when the printing ribbon R is placed at the printing position P, the ribbon feeding means controls the rotation of the ribbon feeding cam follower 80. A ribbon feeding device for a printing device according to claim 1, which is located within a trajectory and is located outside the trajectory when the correction ribbon C is placed at a printing position P. .