JPS61181743U

JPS61181743U -

Info

Publication number: JPS61181743U
Application number: JP6702185U
Authority: JP
Priority date: 1985-05-07
Filing date: 1985-05-07
Publication date: 1986-11-13

Description

[Brief explanation of the drawing]

第１図乃至第４図は、本考案の一実施例を示す
ものであり、第１図は概略を示す斜視図、第２図
は同じく平面図、第３図、第４図は動作説明図で
ある。又、第５図乃至第７図は本考案の他の実施
例を示すものであり、第５図は本実施例の要部を
説明する拡大斜視図、第６図ａ，ｂは同じく動作
を説明する側面図、第７図ａ，ｂは受圧面の違い
を示す比較側面図である。更に第８図は従来の印
字装置の一例を示す斜視図であり、図中同一符号
は同一部材を示している。２，２２…プラテン、２ａ，２２ａ…受圧面、
２ｃ，２２ｃ…背面、３…ヘツドホルダ、５…キ
ヤレージ（案内）シヤフト、９…装置本体、１０
…弾性部材、１１…カム、１２…カムシヤフト、
１４…駆動機構。 1 to 4 show an embodiment of the present invention, in which FIG. 1 is a schematic perspective view, FIG. 2 is a plan view, and FIGS. 3 and 4 are operation explanatory views. It is. 5 to 7 show other embodiments of the present invention; FIG. 5 is an enlarged perspective view illustrating the main parts of this embodiment, and FIGS. 6a and 6b show the same operation. The side views to be described, FIGS. 7a and 7b, are comparative side views showing differences in pressure receiving surfaces. Furthermore, FIG. 8 is a perspective view showing an example of a conventional printing device, and the same reference numerals in the figure indicate the same members. 2, 22... platen, 2a, 22a... pressure receiving surface,
2c, 22c...Back surface, 3...Head holder, 5...Carriage (guide) shaft, 9...Device main body, 10
...elastic member, 11...cam, 12...camshaft,
14... Drive mechanism.

Claims

[Claims for Utility Model Registration] (1) In a printing device equipped with a print head and a platen that opposes the print head and receives printing pressure from the print head via recording paper, the platen is moved in the direction of the print head. A printing device comprising a guide member for guiding the platen and a cam member for adjusting the amount of movement of the platen in the print head direction. (2) The cam member is rotatable and has a plurality of cam surfaces that individually come into contact with the print head as the cam member rotates, and the distances of these cam surfaces from the center of rotation are varied. A printing device according to claim 1 of the utility model registration claim, characterized in that: (3) The printing device according to claim 1, wherein the platen has a printing head pressure-receiving surface whose center side bulges out from above and below.