JPS5838455U - printer ribbon feeding mechanism - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

、　第１図は本箸案のプリンタのリボン送り機構を−示
す説明図、第２図は従来の同機構を示す平面図、第３図
イ９口及び第４図はいずれも本考案の同機構を示し、第
３図イ、町よ各々キャリエツジの正逆方向の移動状態を
示す平面図、第４図は要部断面側面図である。 主な図番の説明、１・・・プラテン、２・・・キャリエ
ツジ、３・・・プーリ、４・・・駆動ギア、５・・・連
結部材、　６・・・遊星ギア、７・・・リボン送り用ギ
ア、８・・・反転ギア、９・・・リボン送り用回転軸、
１０・・・ワイア、１１・・・支軸、１２．１３・・・
大径部、１４．１５・・・小径部。, Fig. 1 is an explanatory diagram showing the ribbon feeding mechanism of the printer of this chopstick design, Fig. 2 is a plan view showing the conventional same mechanism, and Fig. 3 A9 and Fig. 4 are both the same of the present invention. Fig. 3A is a plan view showing the forward and reverse movement of the carriage, and Fig. 4 is a sectional side view of the main part. Explanation of main drawing numbers, 1...Platen, 2...Carrier, 3...Pulley, 4...Drive gear, 5...Connection member, 6...Planetary gear, 7... Ribbon feeding gear, 8... Reversing gear, 9... Rotating shaft for ribbon feeding,
10...Wire, 11...Spindle, 12.13...
Large diameter part, 14.15...small diameter part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 印字ヘッドを載置したキャリエツジがプラテンに沿って
往復運動し、前記印字ヘッドにより印字′　を行うプラ
ンタにおいて１．前記キャリエツジに軸支されたプーリ
と、該プーリに巻回され、前記キャリエツジの往復運動
力向に懸架されたワイアと、前記プーリに結合された駆
動ギアと、該駆動ギアと遊星ギアの各回転軸に同心的に
軸支された連結部材と、該連結部材により前記遊星ギア
が選択的に噛合う小径部及び互に噛合う大径部を有する
反転ギア並びにリボン送り用回転ギアとより成り、前記
遊星ギアを前記反転ギア及びリボン送り用回転ギアの各
小径部の間に配置し、前記駆動ギアの正逆回転の切換時
、前記連結部材の首振り角度を最小となし、バックラッ
シュを最小にしたことを特徴とするプリンタのリボン送
り機構。In a planter in which a carrier on which a print head is placed reciprocates along a platen and the print head performs printing, 1. A pulley pivotally supported by the carrier, a wire wound around the pulley and suspended in the direction of the reciprocating force of the carrier, a drive gear coupled to the pulley, and each rotation of the drive gear and the planetary gear. It consists of a connecting member supported concentrically on a shaft, and a reversing gear and a rotating gear for ribbon feeding, each having a small diameter portion with which the planetary gear selectively meshes with the connecting member and a large diameter portion with which the planetary gear meshes with each other, The planetary gear is disposed between the small diameter portions of the reversing gear and the ribbon feeding rotary gear, and when the driving gear is switched between forward and reverse rotation, the swing angle of the connecting member is minimized to minimize backlash. A printer ribbon feeding mechanism characterized by: