JPS63197134U

JPS63197134U -

Info

Publication number: JPS63197134U
Application number: JP8866287U
Authority: JP
Priority date: 1987-06-09
Filing date: 1987-06-09
Publication date: 1988-12-19

Description

[Brief explanation of the drawing]

第１図は本考案のワイヤガイド部の主要断面図
、第２図は本考案の主要部拡大図、第３図は印字
リボン打接面側からみたワイヤ配列図、第４図は
ピンの見取図、第５図は従来の第一例を示す断面
図、第６図は従来の第一例を示す印字リボン引つ
掛り時の断面図、第７図は従来の第二例を示す断
面図、第８図は従来の第二例を示す印字リボン引
つ掛り時の断面図、第９図は従来の第三例を示す
断面図、第１０図は従来の第四例を示す断面図、
第１１図は従来のワイヤ部の拡大断面図、第１２
図はプリンタヘツドの断面図、第１３図は実施例
で行つた実験のグラフ。１…ノーズ、２…ワイヤ、３…ワイヤガイド、
４…印字リボン、５…ピン、１１…覆板。 Figure 1 is a main sectional view of the wire guide section of the present invention, Figure 2 is an enlarged view of the main parts of the present invention, Figure 3 is a wire arrangement diagram seen from the print ribbon contact surface, and Figure 4 is a sketch of the pins. , FIG. 5 is a sectional view showing the first conventional example, FIG. 6 is a sectional view showing the first conventional example when the printing ribbon is caught, and FIG. 7 is a sectional view showing the second conventional example. FIG. 8 is a sectional view showing a second conventional example when the printing ribbon is caught, FIG. 9 is a sectional view showing a third conventional example, and FIG. 10 is a sectional view showing a fourth conventional example.
Fig. 11 is an enlarged sectional view of a conventional wire section;
The figure is a sectional view of a printer head, and FIG. 13 is a graph of an experiment conducted in an example. 1...Nose, 2...Wire, 3...Wire guide,
4... Printing ribbon, 5... Pin, 11... Cover plate.

Claims

[Scope of utility model registration request]

A print head for a dot printer having a wire and a pin for contacting a print ribbon during printing, characterized in that the corner portion of the contact surface of the wire and pin to the print ribbon has a chamfer or a corner radius.