JPH01112962U

JPH01112962U -

Info

Publication number: JPH01112962U
Application number: JP846488U
Authority: JP
Priority date: 1988-01-26
Filing date: 1988-01-26
Publication date: 1989-07-28
Anticipated expiration: 2003-01-26
Also published as: JPH0514868Y2

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案に係るインクリボン
カートリツジのテンシヨン構造の実施例を示し、
第１図はカートリツジケース全体の一部切欠平面
図、第２図はテンシヨン構造の拡大断面図、第３
図は第２図の―線断面図、第４図は第２図の
―線断面図、第５図はテンシヨンバネの拡大
図である。第６図乃至第１０図は夫々別の実施例
のテンシヨンバネを示す拡大図である。Ｃ……カートリツジケース、Ｒ……インクリボ
ン、１ａ，１ｂ……固定壁、７……テンシヨンバ
ネ、７ａ……作用点部分、７ｂ……基端部、７ｃ
……中間部分、８ａ……挾持面、９……保持部、
９ａ……差込み口、９ｂ……規制面、１０ａ……
加圧面、１１……係止突起、１２……ガイド部。 1 to 5 show examples of the tension structure of the ink ribbon cartridge according to the present invention,
Figure 1 is a partially cutaway plan view of the entire cartridge case, Figure 2 is an enlarged sectional view of the tension structure, and Figure 3 is a partially cutaway plan view of the entire cartridge case.
The figures are a sectional view taken along the line -- in Fig. 2, Fig. 4 is a sectional view taken along the - - line in Fig. 2, and Fig. 5 is an enlarged view of the tension spring. FIGS. 6 to 10 are enlarged views showing tension springs of different embodiments. C... Cartridge case, R... Ink ribbon, 1a, 1b... Fixed wall, 7... Tension spring, 7a... Point of action, 7b... Base end, 7c
... middle part, 8a ... clamping surface, 9 ... holding part,
9a...Inlet, 9b...Restriction surface, 10a...
Pressure surface, 11...locking protrusion, 12...guide portion.

Claims

[Claims for Utility Model Registration] 1. Among the fixed walls 1a and 1b located on both sides of the ribbon running path of the cartridge case C, one of the fixed walls 1a is connected to the action point 7a on the tip side of the tension spring 7. A holding portion 9 forms a holding surface 8a for holding the ink ribbon R to apply running resistance to the ink ribbon R, and holds the base end portion 7b of the tension spring 7 on the other fixed wall 1b.
and a pressure surface 10a that presses an intermediate portion 7c of the tension spring 7 located between the holding portion 9 and the clamping surface 8a toward the one fixed wall 1a. The structure of the holding portion 9 is as follows:
The ink ribbon R and the pressure surface 10a facing the other fixed wall 1b are attached to the other fixed wall 1b from outside the case.
An insertion port 9a into which the tension spring 7 can be inserted is formed between the insertion port 9a and the base end 7b of the tension spring 7 in contact with the peripheral edge of the insertion port 9a to regulate the maximum insertion amount of the tension spring 7. The tension structure of the ink ribbon cartridge is formed with a regulating surface 9b. 2. The tension structure of an ink ribbon cartridge according to claim 1, wherein the other fixed wall 1b is formed with a locking protrusion 11 that detachably engages with the intermediate portion 7c of the tension spring 7 from the ribbon thickness direction. 3. The tension structure of an ink ribbon cartridge according to claim 2, wherein the pressure surface 10 is arranged closer to the clamping surface 8a than the locking protrusion 11. 4 Insert and guide the tension spring 7 in a curved state by slidingly contacting the back surface of the tension spring 7 into a portion of the other fixed wall 1b located between the locking protrusion 11 and the insertion port 9a. The tension structure of an ink ribbon cartridge according to claim 2 or 3, wherein a guide portion (12) is formed.