JPS6220848U

JPS6220848U -

Info

Publication number: JPS6220848U
Application number: JP11185885U
Authority: JP
Priority date: 1985-07-23
Filing date: 1985-07-23
Publication date: 1987-02-07

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の実施例を示し、第１
図は要部側面図、第２図は印刷リボンの移動時の
ギヤ機構の動作説明図、第３図は印刷リボンの移
動停止時のギヤ機構の動作説明図である。１……キヤリツジ、２……ヘツド、４……プー
リ、４ａ……プーリギヤ、５……アイドルギヤ、
５ａ……大径のギヤ、５ｂ……小径のギヤ、６…
…リボンフイードギヤ、６ａ……大径のギヤ、６
ｂ……小径のギヤ、７……クラツチプレート、７
ａ……下方の折曲部、８，９……軸、１０……ワ
イヤ、１１……プーリ。 Figures 1 to 3 show embodiments of the present invention;
2 is an explanatory diagram of the operation of the gear mechanism when the printing ribbon is moving, and FIG. 3 is an explanatory diagram of the operation of the gear mechanism when the printing ribbon is stopped moving. 1... Carriage, 2... Head, 4... Pulley, 4a... Pulley gear, 5... Idle gear,
5a...Large diameter gear, 5b...Small diameter gear, 6...
...Ribbon feed gear, 6a...Large diameter gear, 6
b...Small diameter gear, 7...Clutch plate, 7
a... Lower bent part, 8, 9... Shaft, 10... Wire, 11... Pulley.

Claims

[Scope of utility model registration request]

In the ribbon feed mechanism that feeds the printing ribbon in the ribbon cassette according to the printing operation of the head mounted on the carriage, a pulley that rotates as the carriage moves and a pulley that constantly rotates in conjunction with the pulley are selected as the ribbon drive gear. When the head moves in one direction,
The idle gear and the ribbon drive gear engage, and the rotational force of the pulley is transmitted to the ribbon drive gear to feed the ribbon, and when the head moves in the opposite direction, the idle gear and the ribbon drive gear are disengaged. A ribbon feed mechanism characterized in that ribbon feeding is stopped when the ribbon feed is stopped.