JPH01163150U

JPH01163150U -

Info

Publication number: JPH01163150U
Application number: JP6048188U
Authority: JP
Priority date: 1988-05-07
Filing date: 1988-05-07
Publication date: 1989-11-14
Anticipated expiration: 2003-05-07
Also published as: JPH0547654Y2

Description

[Brief explanation of the drawing]

第１図はこの考案における熱転写印字装置の一
実施例のサーマルヘツドのプラテンへの押接機構
の印字状態を示す概略構造図、第２図は上記一実
施例の印字色変更状態を示す概略構造図、第３図
は上記一実施例のサーマルヘツドとプラテンの開
離状態を示す概略構造図、第４図は従来の熱転写
印字装置のサーマルヘツドのプラテンへの押接機
構の概略構造図、第５図は他の従来例を示す熱転
写印字装置の概略構造図である。図において、１はサーマルヘツド、２はプラテ
ン、３はプリント用紙、４はインクシート、６，
２４は押バネ、８はインクシート供給ロール、９
はインクシート巻取ロール、２１はヘツドアーム
、２６は二重カム、２６ｂは溝カム、２７はカム
ピン、２８は係合片としての係合ピン、２９はカ
ムレバー、３１はヘツド押えレバー、３３は連結
フツク、３３ａは係合溝である。なお、各図中同
一符号は同一または相当部分を示す。 FIG. 1 is a schematic structural diagram showing the printing state of the thermal head to the platen pressing mechanism of one embodiment of the thermal transfer printing device of this invention, and FIG. 2 is a schematic structural diagram showing the printing color changing state of the above-mentioned embodiment. 3 is a schematic structural diagram showing the separated state of the thermal head and platen of the above-mentioned embodiment. FIG. 4 is a schematic structural diagram of a mechanism for pressing the thermal head against the platen of a conventional thermal transfer printing device. FIG. 5 is a schematic structural diagram of a thermal transfer printing device showing another conventional example. In the figure, 1 is a thermal head, 2 is a platen, 3 is a print paper, 4 is an ink sheet, 6,
24 is a pressure spring, 8 is an ink sheet supply roll, 9
21 is an ink sheet winding roll, 21 is a head arm, 26 is a double cam, 26b is a grooved cam, 27 is a cam pin, 28 is an engagement pin as an engagement piece, 29 is a cam lever, 31 is a head presser lever, 33 is a connection The hook 33a is an engagement groove. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A platen supported by a fixed part, a print paper and an ink sheet wrapped around the platen, a thermal head that thermally transfers the ink to the print paper via the ink sheet, and a head arm that supports the thermal head so that it can be moved into and out of the platen. ,
A connecting hook connected to the head arm via a spring that applies a pressing force between the thermal head and the platen, and the fixing portion that drives the head arm when engaged with the connecting hook and allows free movement of the head arm when released. A thermal transfer printing device characterized by comprising an engaging piece supported by.