JPH02111547U

JPH02111547U -

Info

Publication number: JPH02111547U
Application number: JP1938189U
Authority: JP
Priority date: 1989-02-21
Filing date: 1989-02-21
Publication date: 1990-09-06

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係るインクフイル
ムの巻取り装置を示す半断面図、第２図は第１図
の分解斜視図、第３図は巻取り軸の駆動機構を示
す正面図、第４図Ａは巻取り軸と駆動体の要部を
示す断面図、第４図Ｂ，Ｃはそれぞれ弾性体のＯ
リングを示す正面図と断面図、第５図Ａは本考案
におけるすべり速度と伝達トルクとの関係を示す
特性線図、第５図Ｂは本考案における巻取り側ロ
ールの巻径とインクフイルムに加わる張力との関
係を示す特性線図、第６図は図示実施例における
すべり速度と伝達トルクとの関係を示す特性線図
、第７図は本考案の巻取り装置が組込まれる熱転
写プリンタの一例の基本構造を示す概略正面図、
第８図は従来のインクフイルムの巻取り装置を示
す半断面図、第９図は第８図に示されたトルクリ
ミツタを示す斜視図、第１０図Ａは従来の装置に
おけるすべり速度と伝達トルクとの関係を示す特
性線図、第１０図Ｂは従来の巻取り側ロールの巻
径とインクフイルリムに加わる張力との関係を示
す特性線図である。１……プラテン、２……サーマルヘツド、３…
…記録紙、５……インクフイルム、６……供給側
ロール、８……巻取り側ロール、２１……ロール
駆動部、２２……凹部、３０……フレーム（装置
本体）、３１……支持軸、３２……巻取り軸、４
１……駆動体（駆動部材）、４４……環状溝、４
５……Ｏリング、５４……モータ（回転手段）。 Fig. 1 is a half-sectional view showing an ink film winding device according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of Fig. 1, and Fig. 3 is a front view showing the drive mechanism of the winding shaft. , Fig. 4A is a cross-sectional view showing the main parts of the winding shaft and the driving body, and Fig. 4B and C are respectively sectional views of the elastic body.
A front view and a sectional view showing the ring, FIG. 5A is a characteristic diagram showing the relationship between sliding speed and transmitted torque in the present invention, and FIG. 5B is a characteristic diagram showing the relationship between the winding-side roll and the ink film in the present invention. FIG. 6 is a characteristic diagram showing the relationship between applied tension, FIG. 6 is a characteristic diagram showing the relationship between sliding speed and transmitted torque in the illustrated embodiment, and FIG. 7 is an example of a thermal transfer printer incorporating the winding device of the present invention. A schematic front view showing the basic structure of
Fig. 8 is a half-sectional view showing a conventional ink film winding device, Fig. 9 is a perspective view showing the torque limiter shown in Fig. 8, and Fig. 10A shows the sliding speed and transmission torque in the conventional device. FIG. 10B is a characteristic diagram showing the relationship between the winding diameter of the conventional take-up roll and the tension applied to the ink film rim. 1...platen, 2...thermal head, 3...
... Recording paper, 5 ... Ink film, 6 ... Supply side roll, 8 ... Winding side roll, 21 ... Roll drive section, 22 ... Recess, 30 ... Frame (apparatus main body), 31 ... Support Shaft, 32... Winding shaft, 4
1... Drive body (drive member), 44... Annular groove, 4
5...O-ring, 54...motor (rotating means).

Claims

[Scope of utility model registration request]

It has a platen and a thermal head, and the recording paper is conveyed between the platen and the thermal head, and between the recording paper and the thermal head, the recording paper is conveyed to a take-up roll unreeled from the supply roll. In an ink film winding device for thermal transfer printing that transports the ink film to be wound and prints on the recording paper, a winding shaft that engages the winding side roll is rotatably attached to the main body of the device and rotates. A driving member connected to the means is fitted onto the winding shaft, an elastic O-ring is provided between the mating surfaces of the winding shaft and the driving member, and the driving member is connected to the winding shaft through the O-ring. An ink film winding device characterized in that the rotation of the ink film is transmitted to the winding shaft.