JPH047978Y2 - - Google Patents
Info
- Publication number
- JPH047978Y2 JPH047978Y2 JP6769685U JP6769685U JPH047978Y2 JP H047978 Y2 JPH047978 Y2 JP H047978Y2 JP 6769685 U JP6769685 U JP 6769685U JP 6769685 U JP6769685 U JP 6769685U JP H047978 Y2 JPH047978 Y2 JP H047978Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper feed
- paper
- gear
- cam
- paper feeding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Handling Of Sheets (AREA)
- Handling Of Cut Paper (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は小型プリンタの紙送り機構に関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a paper feeding mechanism for a small printer.
従来、小型プリンタの紙送り機構は、特開昭58
−102778号公報に開示されているように、ローラ
軸と行送りレバーはワンウエイクラツチを介して
係合する構造であつた。
Conventionally, the paper feed mechanism of small printers was
As disclosed in Japanese Patent No. 102778, the roller shaft and the feed lever were engaged through a one-way clutch.
この様な構造の紙送り機構に於いて、ローラ軸
に手動ノブを設けた場合、手動ノブによつて印字
紙を順方向へ紙送りすることは可能であるが、手
動ノブを逆転した場合には、ワンウエイクラツチ
がロツクして、印字紙を逆方向へ紙送りすること
ができなかつた。したがつて、印字の開始位置が
用紙に明示してある単票を印字する際、単票をプ
リンタに挿入して、明示位置が行き過ぎた場合に
は単票を抜き取り、再びプリンタにセツトしなく
てはならなかつた。
In a paper feeding mechanism with such a structure, if a manual knob is provided on the roller shaft, it is possible to feed the printed paper in the forward direction with the manual knob, but if the manual knob is reversed, The one-way clutch was locked and the printed paper could not be fed in the opposite direction. Therefore, when printing a ticket whose printing start position is clearly marked on the paper, there is no need to insert the ticket into the printer and, if the designated position goes too far, to pull it out and set it in the printer again. It had to be done.
そこで本考案に従来のこの様な欠点を解除する
為に、手動ノブによる印字紙の前後送りを可能に
することを目的としている。 Therefore, in order to overcome these drawbacks of the prior art, the present invention aims to enable forward and backward feeding of printed paper using a manual knob.
上記問題点を解決するため本考案の紙送り機構
は、円筒場の紙送りゴムを有する紙送りローラ軸
と、紙送りローラ軸に固着され鋸歯状歯を有する
手動ノブと、紙送りローラ軸上に手動ノブと隣接
して配され手動ノブの鋸歯状歯と噛合する鋸歯状
歯を有し紙送りローラ軸に対して摺動可能及び回
転可能に設けられた紙送り歯車と、紙送り歯車に
設けられた係合部と、紙送り歯車の係合部と係合
し紙送り歯車を紙送りローラ軸に対して回転する
ように往復動させる第１のカム部と、紙送り歯車
の係合部と係合し紙送り歯車を紙送りローラ軸に
対して摺動するように往復動させることによつて
紙送り歯車が所定方向に回転する際には紙送り歯
車の鋸歯状歯と手動ノブの鋸歯状歯の噛合を解除
させる第２のカム部とを有する紙送りカムと、紙
送り歯車の鋸歯状歯と手動ノブの鋸歯状歯が噛合
するように紙送り歯車を手動ノブに付勢する紙送
りばねと、紙送り歯車の係合部を第１のカム部に
付勢する付勢手段と、紙送りカムを一方向へ回転
させる駆動手段とを有し、紙送りカムの回転を停
止する際には第２のカム部により紙送り歯車の鋸
歯状歯と手動ノブの鋸歯状歯の噛合が解除された
状態に保持されることで手動ノブにより正逆送り
を可能にしたことを特徴とする。
In order to solve the above problems, the paper feed mechanism of the present invention includes a paper feed roller shaft having a cylindrical paper feed rubber, a manual knob fixed to the paper feed roller shaft and having serrated teeth, and a paper feed roller shaft having a serrated tooth on the paper feed roller shaft. a paper feed gear which is disposed adjacent to the manual knob and has serrated teeth that mesh with the serrated teeth of the manual knob and is provided to be slidable and rotatable relative to the paper feed roller shaft; The provided engaging portion and the first cam portion that engages with the engaging portion of the paper feeding gear and reciprocates the paper feeding gear so as to rotate with respect to the paper feeding roller shaft, and the paper feeding gear are engaged with each other. When the paper feed gear rotates in a predetermined direction by reciprocating the paper feed gear so as to slide against the paper feed roller shaft, the serrated teeth of the paper feed gear and the manual knob a paper feeding cam having a second cam portion that disengages the serrated teeth of the paper feeding cam; and urging the paper feeding gear to the manual knob so that the serrated teeth of the paper feeding gear and the serrated teeth of the manual knob mesh with each other; a paper feeding spring that urges the engaging portion of the paper feeding gear toward the first cam portion; and a driving device that rotates the paper feeding cam in one direction. When stopping, the second cam part holds the serrated teeth of the paper feed gear and the serrated teeth of the manual knob in a disengaged state, making it possible to feed forward and reverse with the manual knob. Features.
又、第２のカム部と紙送り歯車との間に紙送り
解除レバーを設け、第２のカム部が紙送り解除レ
バーを往復動させことにより紙送り歯車を紙送り
ローラ軸に対して摺動するように往復動させるこ
とを特徴とする。 Further, a paper feed release lever is provided between the second cam portion and the paper feed gear, and the second cam portion slides the paper feed gear against the paper feed roller shaft by reciprocating the paper feed release lever. It is characterized by reciprocating motion as if moving.
上記の様に構成された紙送り機構は、プリンタ
停止時に於て、紙送り歯車の手動ノブの噛合が解
除された状態に保持されるので、手動ノブにより
印字紙の正逆送りが可能となる。
In the paper feed mechanism configured as described above, when the printer is stopped, the manual knob of the paper feed gear is held in a disengaged state, so that the manual knob can feed the printed paper in the forward and reverse directions. .
以下本考案による紙送り機構の構造および特徴
を図面に従つて説明する。
The structure and features of the paper feeding mechanism according to the present invention will be explained below with reference to the drawings.
第１図は本考案の紙送り装置の１実施例であつ
て２１はカム２１−１を外周に有しさらにカム２
１−２を端面に有しカム軸２７に固着している紙
送りカム、２４は円筒状の紙送りゴムを有した紙
送りローラ軸、２３は紙送りローラ軸２４に固着
され鋸歯状歯２３−１を有する手動ノブ、２２は
鋸歯状歯２３−１と噛合しうる鋸歯状歯２２−１
を有し、手動ノブ２３と同軸上に摺動可能に配さ
れ紙送りカム２１と当接している係合部２２−２
が備えられた紙送り歯車、２５は鋸歯状歯２２−
１と鋸歯状歯２３−１が噛合するようにスラスト
方向に力を与えている紙送りばね、２６は紙送り
歯車２２を矢印ｇ方向へ引張つている付勢手段で
ある紙送り歯車ばね、２８はフレームである。 FIG. 1 shows one embodiment of the paper feeding device of the present invention, in which 21 has a cam 21-1 on the outer periphery, and a cam 21-1 on the outer periphery.
A paper feed cam having 1-2 on the end face and fixed to a cam shaft 27, 24 a paper feed roller shaft having a cylindrical paper feed rubber, and 23 fixed to the paper feed roller shaft 24 with serrated teeth 23. - a manual knob having a serration tooth 22-1, 22 capable of meshing with the serration tooth 23-1;
an engaging portion 22-2 which is slidably disposed coaxially with the manual knob 23 and comes into contact with the paper feed cam 21;
25 is a paper feed gear equipped with serrated teeth 22-
1 and the serrated teeth 23-1, and 26 is a paper feeding gear spring 28 which is a biasing means that pulls the paper feeding gear 22 in the direction of arrow g. is a frame.
この機構に於いてプリンタの動力によつて紙送
りを行う様子を説明する。第１図に於いてカム軸
２７が矢印ｄ方向へ回転するとそれに伴なつて紙
送りカム２１も矢印ｄ方向へ回転を行う。紙送り
カム２１が矢印ｄ方向へ回転することによりカム
２１−１が紙送り歯車２２を矢印ｅ方向へ回転さ
せる。すると鋸歯状歯２２−１と鋸歯状歯２３−
１が噛合して手動ノブ２３は矢印ｆ方向へ回転さ
せられ同時に紙送りローラ軸２４が回転する為紙
送りが成される。更に紙送りカム２１の回転が進
むと、カム２１−１はピークを越える為、紙送り
歯車ばね２６によつて矢印ｇ方向に引張られてい
る紙送り歯車２２はカム２１−１に沿うながら矢
印ｈ方向に回転して待機状態に戻り次の紙送りに
備えるのである（第１図中、一点鎖線が紙送り歯
車２２の待機状態である。）。尚、紙送り歯車２２
は矢印ｈ方向へ回転する際には、紙送り歯車２２
は矢印ｉ方向にスライドしながら手動ノブ２３の
鋸歯状歯を乗り越えて回転する為、手動ノブ２３
は逆転することはない。 The manner in which paper is fed using the power of the printer in this mechanism will be explained. In FIG. 1, when the cam shaft 27 rotates in the direction of arrow d, the paper feed cam 21 also rotates in the direction of arrow d. When the paper feed cam 21 rotates in the direction of arrow d, the cam 21-1 rotates the paper feed gear 22 in the direction of arrow e. Then, the serrated teeth 22-1 and the serrated teeth 23-
1 are engaged, the manual knob 23 is rotated in the direction of arrow f, and at the same time, the paper feed roller shaft 24 is rotated, so that the paper is fed. As the rotation of the paper feed cam 21 further progresses, the cam 21-1 exceeds its peak, so the paper feed gear 22, which is pulled in the direction of the arrow g by the paper feed gear spring 26, rotates along the cam 21-1. It rotates in the h direction and returns to the standby state in preparation for the next paper feed (in FIG. 1, the dashed line indicates the standby state of the paper feed gear 22). In addition, the paper feed gear 22
When rotating in the direction of arrow h, the paper feed gear 22
The manual knob 23 rotates over the serrated teeth of the manual knob 23 while sliding in the direction of arrow i.
is never reversed.
次に紙送りを終了して、次の紙送りを迎えるで
の本機構の動きを説明する。カム２１−１により
往復回動した紙送り歯車２２が待機状態に戻ると
同時に、カム２１−２が紙送り歯車２２と係合を
開始する。すると紙送り歯車２２は矢印ｉ方向に
スライドさせられ鋸歯状歯２２−１と鋸歯状歯２
３−１は係合を断つ。（第２図参照）さらに紙送
りカム２１の回転が進むと紙送りが開始される手
前でカム２１−２が終了する為、紙送り歯車２２
は紙送りばね２５の力によつて矢印ｊ方向へスラ
イドして、鋸歯状歯２２−１と鋸歯状歯２３−１
は第１図に示す様に噛合して紙送りが可能な状態
となる。 Next, we will explain the operation of this mechanism when paper feeding ends and the next paper feeding begins. At the same time as the paper feed gear 22 that has been reciprocated by the cam 21-1 returns to the standby state, the cam 21-2 starts engaging with the paper feed gear 22. Then, the paper feed gear 22 is slid in the direction of arrow i, and the serrated teeth 22-1 and serrated teeth 2
3-1 breaks the engagement. (See Figure 2) As the paper feed cam 21 rotates further, the cam 21-2 ends before the paper feed starts, so the paper feed gear 22
is slid in the direction of arrow j by the force of the paper feed spring 25, and the serrated teeth 22-1 and serrated teeth 23-1
As shown in FIG. 1, the two mesh with each other and become ready for paper feeding.
以上の様な動きをする紙送り機構に於いて、プ
リンタ停止する際には、カム２１−２が紙送り歯
車２２と係合している場所、つまり、鋸歯状歯の
噛合が断たれた状態で停止させるようにする。 In the paper feed mechanism that moves as described above, when the printer is stopped, the position where the cam 21-2 is engaged with the paper feed gear 22, that is, the state where the serrated teeth are disengaged Make it stop with .
したがつて本考案によれは、プリンタ停止時に
於いては、鋸歯状歯の噛合を断つた状態で停止で
きる為、手動ノブ２３は矢印ｆ・ｋ両方向に回転
することが可能となつた。 Therefore, according to the present invention, when the printer is stopped, the manual knob 23 can be rotated in both directions of the arrows f and k, since the printer can be stopped with the serrated teeth disengaged.
第３図は鋸歯状歯の係合を断つ他の実施例を示
したもので、３１は端面にカム３１−１を有した
紙送りカム、３２はピン３２−１とピン３２−２
を有し、レバー軸３３に保持され、回転可能な紙
送り解除レバーである。 FIG. 3 shows another embodiment in which the engagement of the serrations is cut off, in which numeral 31 is a paper feed cam having a cam 31-1 on the end face, numeral 32 is a pin 32-1 and a pin 32-2.
It is a rotatable paper feed release lever held by the lever shaft 33.
この構造に於いて、紙送りカム３１が矢印方
向へ回転し、ピン３２−１と係合すると紙送り解
除レバー３２は矢印ｍ方向へ回転し、ピン３２−
２が凸部３４−１に当接する為紙送り歯車３４は
矢印ｎ方向へスライドして鋸歯状歯の噛合を断つ
ことができる。この様な構造にした場合、カム３
１−１と、凸部３４−１との遠近にかかわらず必
ず凸部３４−１を押すことができる為、紙送り歯
車３４がこじれずにスムースに矢印ｎ方向へスラ
イドできるという利点がある。 In this structure, when the paper feed cam 31 rotates in the direction of the arrow and engages with the pin 32-1, the paper feed release lever 32 rotates in the direction of the arrow m, and the pin 32-1 rotates.
2 comes into contact with the convex portion 34-1, the paper feed gear 34 can slide in the direction of the arrow n, thereby breaking the engagement of the sawtooth teeth. If this structure is used, cam 3
Since the convex part 34-1 can always be pushed regardless of the distance between the convex part 1-1 and the convex part 34-1, there is an advantage that the paper feed gear 34 can smoothly slide in the direction of the arrow n without being twisted.
上記の様に構成された紙送り機構は、プリンタ
停止時に於いて鋸歯状歯の噛合が断たれている為
手動ノブによる印字紙の正逆送りが可能となつ
た。
In the paper feeding mechanism constructed as described above, since the serrated teeth are disengaged when the printer is stopped, it is possible to feed the printed paper forward and backward using the manual knob.
したがつて、印字の開始位置が明示されている
単票をプリンタに挿入した際、印字開始位置が行
き過ぎた場合には手動ノブを逆転することにより
印字開始位置を所定の位置に容易にセツトするこ
とができる。 Therefore, when inserting a ticket with the print start position clearly indicated into the printer, if the print start position goes too far, the print start position can be easily set to a predetermined position by reversing the manual knob. be able to.
以上述べた様に本考案によれば、印字紙の印字
開始位置合わせのわずらわしさが解消され、作業
性も向上することができ本考案による効果は大き
い。 As described above, according to the present invention, the troublesomeness of aligning the printing start position of the printing paper can be eliminated, and the workability can be improved, so the effects of the present invention are significant.
第１図は本考案の一実施例を示す紙送り機構の
斜視図（プリンタ作動時）。第２図は本考案の紙
送り機構の斜視図（プリンタ停止時）。第３図は
本考案の他の実施例を示す斜視図である。
２１……紙送りカム、２２……紙送り歯車、２
３……手動ノブ、２４……紙送りローラ軸、２５
……紙送りばね、２６……紙送り歯車ばね、２７
……カム軸、３１……紙送りカム、３２……紙送
り解除レバー、３３……レバー軸、３４……紙送
り歯車。
FIG. 1 is a perspective view of a paper feeding mechanism (during printer operation) showing an embodiment of the present invention. FIG. 2 is a perspective view of the paper feeding mechanism of the present invention (when the printer is stopped). FIG. 3 is a perspective view showing another embodiment of the present invention. 21...Paper feed cam, 22...Paper feed gear, 2
3...Manual knob, 24...Paper feed roller shaft, 25
...Paper feed spring, 26...Paper feed gear spring, 27
... cam shaft, 31 ... paper feed cam, 32 ... paper feed release lever, 33 ... lever shaft, 34 ... paper feed gear.
Claims (1)
と、 該紙送りローラ軸に固着され鋸歯状歯を有す
る手動ノブと、 前記紙送りローラ軸上に前記手動ノブと隣接
して配され前記手動ノブの鋸歯状歯と噛合する
鋸歯状歯を有し前記紙送りローラ軸に対して摺
動可能及び回転可能に設けられた紙送り歯車
と、 該紙送り歯車に設けられた係合部と、 該紙送り歯車の係合部と係合し該紙送り歯車
を前記紙送りローラ軸に対して回転するように
往復動させる第１のカム部と、前記紙送り歯車
の係合部と係合し該紙送り歯車を紙送りローラ
軸に対して摺動するように往復動させることに
よつて該紙送り歯車が所定方向に回転する際に
は該紙送り歯車の鋸歯状歯と前記手動ノブの鋸
歯状歯の噛合を解除させる第２のカム部とを有
する紙送りカムと、 前記紙送り歯車の鋸歯状歯と前記手動ノブの
鋸歯状歯が噛合するように前記紙送り歯車を前
記手動ノブに付勢する紙送りばねと、 前記紙送り歯車の係合部を前記第１のカム部
に付勢する付勢手段と、 前記紙送りカムを一方向へ回転させる駆動手
段とを有し、 前記紙送りカムの回転を停止する際には前記
第２のカム部により前記紙送り歯車の鋸歯状歯
と前記手動ノブの鋸歯状歯の噛合が解除された
状態に保持されることで前記手動ノブにより正
逆送りを可能にしたことを特徴とする紙送り機
構。 (2) 前記第２のカム部と前記紙送り歯車との間に
紙送り解除レバーを設け、前記第２のカム部が
該紙送り解除レバーを往復させることにより前
記紙送り歯車を紙送りローラ軸に対して摺動す
るように往復動させることを特徴とする実用新
案登録請求の範囲第１項記載の紙送り機構。[Claims for Utility Model Registration] (1) A paper feed roller shaft having a cylindrical paper feed rubber; a manual knob fixed to the paper feed roller shaft and having serrated teeth; a paper feed gear disposed adjacent to a manual knob, the paper feed gear having serrations that mesh with the serrations of the manual knob, and slidably and rotatably mounted on the paper feed roller shaft; an engaging portion provided on the gear; a first cam portion that engages with the engaging portion of the paper feed gear and reciprocates the paper feed gear to rotate with respect to the paper feed roller shaft; When the paper feeding gear rotates in a predetermined direction by engaging with the engaging portion of the paper feeding gear and reciprocating the paper feeding gear so as to slide on the paper feeding roller shaft, the paper is rotated in a predetermined direction. a paper feeding cam having a second cam portion that disengages the serrated teeth of the feeding gear and the serrated teeth of the manual knob; and the serrated teeth of the paper feeding gear and the serrated teeth of the manual knob mesh with each other. a paper feeding spring that urges the paper feeding gear toward the manual knob; urging means that urges an engaging portion of the paper feeding gear toward the first cam portion; and a drive means for rotating the paper feed cam in the direction, and when the rotation of the paper feed cam is stopped, the second cam portion releases the engagement between the serrated teeth of the paper feed gear and the serrated teeth of the manual knob. A paper feeding mechanism characterized in that the paper feeding mechanism is maintained in a state in which the paper is fed in the forward and reverse directions by the manual knob. (2) A paper feed release lever is provided between the second cam part and the paper feed gear, and the second cam part moves the paper feed gear to the paper feed roller by reciprocating the paper feed release lever. The paper feeding mechanism according to claim 1, wherein the paper feeding mechanism is reciprocated so as to slide on a shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6769685U JPH047978Y2 (en) | 1985-05-08 | 1985-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6769685U JPH047978Y2 (en) | 1985-05-08 | 1985-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61183656U JPS61183656U (en) | 1986-11-15 |
| JPH047978Y2 true JPH047978Y2 (en) | 1992-02-28 |
Family
ID=30601755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6769685U Expired JPH047978Y2 (en) | 1985-05-08 | 1985-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH047978Y2 (en) |
-
1985
- 1985-05-08 JP JP6769685U patent/JPH047978Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61183656U (en) | 1986-11-15 |
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