JPS581558U

JPS581558U - Printing device paper feed mechanism

Info

Publication number: JPS581558U
Application number: JP9347681U
Authority: JP
Inventors: 哲夫渡辺
Original assignee: 株式会社リコー
Priority date: 1981-06-24
Filing date: 1981-06-24
Publication date: 1983-01-07

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) [Summary] 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 the drawing]

第１図は、印字装置における従来の紙送り機構を示す概
略構成図である。第２図は、それを右側面から見た図で
あり、フレーム・ステップモータ等は図示されない。第
３図は、この考案の一実施例を示すもので、この考案に
よる紙送り機構を示す概略構成図である。第４図は、そ
のつめ車の歯と規制部材との保合状態を示す説明図であ
る。第５図は他のつめ車と規制部材とを用いた場合のつ
め車の歯と規制部材との係合状態を示す説明図であり、
Ａは規制部材として板ばねを用いた場合、Ｂはつめを用
いた場合を示す。１０・・・・・・ステップモータ、４０・・・・・・送
り軸、４２・５６・６４・・・・・・つめ車、４４・５
８・６６・・・・・・歯、４６・・・・・・ピン、５４
・・・・・・板ばね、６０・・・・・・つめ。FIG. 1 is a schematic configuration diagram showing a conventional paper feeding mechanism in a printing device. FIG. 2 is a view of the same from the right side, and the frame, step motor, etc. are not shown. FIG. 3 shows an embodiment of this invention, and is a schematic configuration diagram showing a paper feeding mechanism according to this invention. FIG. 4 is an explanatory diagram showing a state in which the teeth of the ratchet wheel and the regulating member are engaged. FIG. 5 is an explanatory diagram showing the state of engagement between the teeth of the ratchet wheel and the regulating member when another ratchet wheel and regulating member are used;
A shows a case where a leaf spring is used as a regulating member, and B shows a case where a pawl is used as a regulating member. 10... Step motor, 40... Feed shaft, 42, 56, 64... Pawl wheel, 44, 5
8.66...teeth, 46...pin, 54
...Plate spring, 60...Tlaw.

Claims

【実用新案登録請求の範囲】１　ステップモータにより間欠回転°駆動される送り軸
につめ車を取り付け、そのつめ車に前記ステップモータ
の１ステツプ角に対応する角度で等間隔に歯を形成し、
その歯に順次規制部材を係合させてなる印字装置の紙送
り機構。２　送り軸が紙送りローラの中心軸であり、その紙送り
ローラに圧接ローラを押し当て、それらのローラ間に紙
を挾んでその紙を間欠的に送る前記実用新案登録請求の
範囲第１項記載の印字装置の紙送り機構。[Claims for Utility Model Registration] 1. A ratchet wheel is attached to a feed shaft that is driven by a step motor intermittently rotating degrees, and teeth are formed on the ratchet wheel at equal intervals at an angle corresponding to one step angle of the step motor,
A paper feed mechanism of a printing device in which a regulating member is sequentially engaged with the teeth of the paper feed mechanism. 2. The feed shaft is the central axis of a paper feed roller, and a pressure roller is pressed against the paper feed roller, and the paper is sandwiched between these rollers to intermittently feed the paper. Paper feed mechanism of the described printing device.