JPS6275956U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す断面図、第
２図は同実施例に使用されたひねりばねを示す斜
視図、第３図は同実施例の動作説明図、第４図は
従来のリボンカセツトを示す断面図、第５図はそ
の供給スプールを示す斜視図である。 図中、１はケース、２はインクリボン、３は供
給スプール、５は巻取スプール、４，６，７，８
は軸、９，１０，１４はローラ、１２は軸、１３
はひねりばね、１３ａは内径、１３ｂ，１３ｃは
折曲部である。尚、図中同一符号は同一または相
当部分を示す。 Fig. 1 is a sectional view showing an embodiment of this invention, Fig. 2 is a perspective view showing a torsion spring used in the embodiment, Fig. 3 is an explanatory diagram of the operation of the embodiment, and Fig. 4 is a conventional FIG. 5 is a cross-sectional view showing the ribbon cassette of the present invention, and FIG. 5 is a perspective view showing the supply spool thereof. In the figure, 1 is a case, 2 is an ink ribbon, 3 is a supply spool, 5 is a take-up spool, 4, 6, 7, 8
is the shaft, 9, 10, 14 are rollers, 12 is the shaft, 13
13a is a torsion spring, 13a is an inner diameter, and 13b and 13c are bent portions. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】 (1) 転写形サーマルプリンタ等のインクリボン
を用いる印字装置において、インクリボン供給側
スプールと巻取側スプールとの間で印字位置を通
る経路にてインクリボンが走行せしめられ、この
リボン走行経路において、前記供給側スプールに
巻回されたインクリボンの外周に当接されて前記
供給スプールにブレーキ力を与えるばねと、前記
インクリボンの走行ガイドローラを有し、このイ
ンクリボンのたるみを吸収するばねとを備えたこ
とを特徴とするリボンカセツト。 (2) 供給スプールにブレーキ力を与えるばねと
、インクリボンのたるみを吸収するばねとを１個
のひねりばねで共用したことを特徴とする実用新
案登録請求の範囲第１項記載のリボンカセツト。[Scope of Claim for Utility Model Registration] (1) In a printing device using an ink ribbon such as a transfer type thermal printer, the ink ribbon runs along a path that passes through the printing position between the ink ribbon supply side spool and the take-up side spool. and a spring that applies a braking force to the supply spool by coming into contact with the outer periphery of the ink ribbon wound around the supply spool in the ribbon travel path, and a travel guide roller for the ink ribbon. A ribbon cassette characterized by being equipped with a spring that absorbs slack in the ink ribbon. (2) The ribbon cassette according to claim 1, which is characterized in that a single torsion spring serves as both a spring that applies a braking force to the supply spool and a spring that absorbs slack in the ink ribbon.