JPS59209173A - Sheet feeding mechanism of printing machine - Google Patents
Sheet feeding mechanism of printing machineInfo
- Publication number
- JPS59209173A JPS59209173A JP7337584A JP7337584A JPS59209173A JP S59209173 A JPS59209173 A JP S59209173A JP 7337584 A JP7337584 A JP 7337584A JP 7337584 A JP7337584 A JP 7337584A JP S59209173 A JPS59209173 A JP S59209173A
- Authority
- JP
- Japan
- Prior art keywords
- platen
- sheet
- paper
- pressure
- fed
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
Landscapes
- Handling Of Sheets (AREA)
- Handling Of Cut Paper (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
Abstract
Description
【発明の詳細な説明】
不発りｌけ印字装置の紙送り機構に関し、その目的とす
るところは印字用紙の正転送り動作及び逆転送り動作を
円滑に行なわせることにある。DETAILED DESCRIPTION OF THE INVENTION The purpose of the paper feeding mechanism of a non-printing printing device is to smoothly perform forward and reverse feeding operations of printing paper.
従来におけるこの種の紙送シ機構は第１図に示すように
構成されていた。すなわち第１図におい −で、印字ヘ
ッド１はプラテン２の長手方向（図面に垂面なか向）に
沿って往復動し、該ヘッド１とプラテン２間に支承され
た印字用紙３に印字を行なう。＋ｉｉｆ記用紙３け紙ガ
イド板４に案内されプラテン２に巻回されてだ後、その
両側縁に設けたミシンＬ１孔に紙送りトラクタ機構５を
構成する無端状ピン（Ｊベルト６のビン６ａが係合され
ている。A conventional paper feeding mechanism of this type was constructed as shown in FIG. That is, at - in FIG. 1, the print head 1 reciprocates along the longitudinal direction of the platen 2 (in the direction perpendicular to the drawing) and prints on the print paper 3 supported between the head 1 and the platen 2. . After the three sheets of paper described in +iif are guided by the paper guide plate 4 and wound around the platen 2, an endless pin (bin 6a of the J belt 6 is engaged.
圧接ローラ７はばね８を介して回動支持シャフト９に成
句けられている。ここでばね８は圧接力の不均一を吸収
するばねである。圧接ローラ７は、シャフト９を支点と
して回動機構すなわちレバー又はカム（図示せず）によ
り回Ｃされプラテン２に圧接されている。ここで印字用
紙の正転送り時には、紙送りモータ（図示せず）により
紙送りトラクタ機構５のトラクタシャフト１０が回動し
無端状ピン付ベルト６が走行されて用紙３が矢印の一砿
奔方向に送られる。この時プラテン２もトラクタシャフ
ト１００回動に同期して回動し、用紙３は１王接ローラ
７によりバックテンションを与えられた状態で正転方向
に送られる。この場合、プラテン２も回動するため圧接
ローラ７の圧接力はバックテンションを与えるだけの軽
い圧転力に設定しである。The pressure roller 7 is attached to a rotary support shaft 9 via a spring 8. Here, the spring 8 is a spring that absorbs uneven pressure contact force. The pressure roller 7 is rotated by a rotation mechanism, that is, a lever or a cam (not shown) about the shaft 9 as a fulcrum, and is pressed against the platen 2 . When forwarding the printing paper, the tractor shaft 10 of the paper feeding tractor mechanism 5 is rotated by a paper feeding motor (not shown), the endless belt with pins 6 is run, and the paper 3 is moved in the direction of the arrow. sent in the direction. At this time, the platen 2 also rotates in synchronization with the rotation of the tractor shaft 100, and the paper 3 is fed in the normal rotation direction while being given back tension by the first circling roller 7. In this case, since the platen 2 also rotates, the pressing force of the pressing roller 7 is set to a light rolling force that is sufficient to provide back tension.
ちなみにあまり強い圧接力を与えるとプラテン２の駆動
力を大きくしなければならず、プラテン２と圧接ローラ
７間での送りがプラテン２の方が早いと用紙３は該プラ
テン２と、紙送りトラクタ機構４との間でたるんでしま
うという不都合を生じる。By the way, if too strong a pressure contact force is applied, the driving force of the platen 2 must be increased, and if the platen 2 is faster in feeding between the platen 2 and the pressure roller 7, the paper 3 will be moved between the platen 2 and the paper feed tractor. This causes the inconvenience of slack between it and the mechanism 4.
次に逆転送り時には圧接ローラ７をシャフト９を支点と
してプラテン２より回動させてａｔ脱させ、この状態で
トラクタシャフト１０に形成されたマニュアルうまみ（
図示せず）を逆転させて、用紙を送り所要の位置に用紙
を逆転送りさせ／こ後に、再度圧接ローラ７をプラテン
２に圧接させる操作が必要であった。Next, at the time of reverse feed, the pressure roller 7 is rotated from the platen 2 using the shaft 9 as a fulcrum to remove the at.
(not shown) to reversely feed the paper to a desired position.After this, it was necessary to press the pressure roller 7 against the platen 2 again.
しかるに本発明はかかる欠点を一掃しつるものであり、
以下にその一実施例について第２図と共に説明する。な
お第２図において第１図と同一構成ｊＸＪ（分には同一
番号を（＝Ｊして詳細な説り１を省略する。図において
紙ガイド板１１はその一端がシャフト１２を支点として
印字装置のシャーシ（図示せず）に回転自在に軸支され
、他端近傍に設けた突片１１ａの長孔には圧接ローラの
回転軸７ａが回転及び上−ド動可能なように係合され、
この回転軸７ａは」二足紙ガイド板１１に一端が固着さ
れた板ばね１３によ−て上刃に伺勢され、さらに紙ガイ
ド板１１の他端とシャーシとの間に懸架したばね１４に
よって一ヒ記圧接ローラ了がプラテンに圧接されている
。上記圧接ローラ７はばね１３により圧接力の不均一が
吸収され、所要の圧接力を得て、用紙３にバックテンシ
ョンを与えている。１５は作動力１６を有するプランジ
ャであり、作動時にはその作動子１６先端のゴム体１７
が図のように紙ガイド板９に押当てられる。However, the present invention eliminates such drawbacks,
An example of this will be described below with reference to FIG. 2. Note that in FIG. 2, the same configuration as in FIG. The pressure roller is rotatably supported by a chassis (not shown), and a rotating shaft 7a of the pressure roller is engaged with a long hole of a protrusion 11a provided near the other end so as to be rotatable and upwardly movable.
This rotating shaft 7a is biased toward the upper blade by a leaf spring 13 whose one end is fixed to the bipedal paper guide plate 11, and further by a spring 14 suspended between the other end of the paper guide plate 11 and the chassis. The pressure roller 1 is pressed against the platen. The pressure roller 7 absorbs unevenness in the pressure contact force by the spring 13, obtains the required pressure contact force, and applies back tension to the paper 3. 15 is a plunger having an actuation force 16, and when actuated, a rubber body 17 at the tip of the actuator 16
is pressed against the paper guide plate 9 as shown in the figure.
−に記実施例において、用紙３を正転方向に送る時は圧
接ローラ７がばね１４の力で用紙３に圧接された状態で
、先述したと同様に、紙送りトラクタ機構６とプラテン
の作動によって用紙送りか行なわれる。- When the paper 3 is fed in the normal rotation direction in the embodiment described in 1, the paper feeding tractor mechanism 6 and the platen are operated in the same manner as described above with the pressure roller 7 being pressed against the paper 3 by the force of the spring 14. The paper is only fed by .
一方、用紙３を逆転方向に送る時にはプランジャ１５に
通電されて作動子１６が突出動され、その先端の寸法吸
収用ゴム体１７が紙ガイド１１をシャフト１２を支軸に
して反時計方向に回動させる。したがって圧接ローラ７
は先述したｉＥ転送り峙の圧接力より強い圧接力でプラ
テン２に圧接されるためプラテン２を逆転駆動し、トラ
クタ機幅４をそれに従動させる場合、プラテン２が圧接
ローラ了の主１枢動側となり、用紙３はたるむ串′なく
逆転送りが自動的に行なわれる。On the other hand, when the paper 3 is sent in the reverse direction, the plunger 15 is energized, the actuator 16 is moved to protrude, and the size absorbing rubber body 17 at the tip rotates the paper guide 11 counterclockwise around the shaft 12. make it move. Therefore, the pressure roller 7
is pressed against the platen 2 with a pressure force stronger than that of the iE transfer mentioned above, so when the platen 2 is driven in reverse and the tractor machine width 4 is driven accordingly, the platen 2 is rotated by the main 1 pivoting of the pressure roller. The paper 3 is automatically fed in the reverse direction without the skewer sagging.
ｌ二足説り−１はプランジャ１５を使用してＩ（：接ロ
ーラ７の圧接力を２段階に切り換えたが、レバー等の部
側を用いても同じ効果をうるｑｆができるし、圧接力の
切換段数は３以上とすることも可能である。The two-leg theory-1 uses the plunger 15 to switch the pressure contact force of the contact roller 7 into two stages, but the same effect can be obtained by using a lever or other part side, and It is also possible to set the number of force switching stages to three or more.
以上説明したように本発明の印字装置の紙送り機構によ
れば、圧接ローラの圧接力を段階的に切換えるようにし
ているので、たとえば印字用紙の正１臥送り時には圧接
ローラの圧接力をバックテンションとして用い、逆転送
り時にはプラテンの回動力を俤′実に用紙に伝える力と
しで用い、印字用紙の１１Ｅ転、逆転いずれの送り動作
をも該用紙をたる甘せることなく円滑に行なうことがて
きる。As explained above, according to the paper feed mechanism of the printing device of the present invention, the pressure contact force of the pressure roller is switched in stages, so that, for example, when printing paper is fed in the normal direction, the pressure contact force of the pressure roller is reversed. It is used as tension, and when feeding in reverse, the rotational force of the platen is used as a force to transmit the force to the paper in a smooth manner, allowing printing paper to be fed smoothly in both 11E rotation and reverse rotation without causing the paper to sag. Ru.
第１図は従来の印字装置の紙送り機＋１１４を示す側面
図、第２図は本発明の一実施例における印字装置の紙送
り機構を示す側面図である。
１・・・・・・印字ヘッド、２・・・・プラテン、３・
・川・印字用紙、６・・・・・・紙送りトラクタ機構、
６・・・・無端状ピン付ベルト、７・・・・・・圧接ロ
ーラ、１１・・・・・紙ガイド板、１３．１４・・・・
・・ばね、１５・・・・・プランジャ、１６・・・ 作
動子、１７・・・・ゴム体。FIG. 1 is a side view showing a paper feeder +114 of a conventional printing device, and FIG. 2 is a side view showing a paper feeding mechanism of a printing device according to an embodiment of the present invention. 1... Print head, 2... Platen, 3...
・River・Printing paper, 6...Paper feed tractor mechanism,
6... Endless belt with pin, 7... Pressure roller, 11... Paper guide plate, 13.14...
...Spring, 15...Plunger, 16... Actuator, 17...Rubber body.
Claims (2)
、上記プラテンに印字用紙を圧接する圧接ローラを弾性
的に収付け、かつ上記圧接ローラのプラテンに対する圧
接力を段階的に切換る圧接力切換手段を設けたことを特
徴とする印字装置の紙送り機構。(1) A pressure roller that presses the printing paper against the platen is elastically housed in a paper guide plate that guides the printing paper to the platen, and a pressure switching device that changes the pressure of the pressure roller against the platen in stages. A paper feeding mechanism of a printing device, characterized in that a means is provided.
ンジャーを作動させて紙ガイド板に押当てるか否かによ
って圧接ローラの圧接力を２段階に９ノ換えるように石
１４成したことを特徴とする特許、請求の範囲第１項記
載の印字装置の紙送り機構。(2) The pressure contact force switching means is constituted by a plunger, and the pressure contact force of the pressure roller can be changed into two levels depending on whether or not the plunger is pressed against the paper guide plate. A paper feeding mechanism for a printing device according to claim 1 of the patent, characterized in:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7337584A JPS59209173A (en) | 1984-04-12 | 1984-04-12 | Sheet feeding mechanism of printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7337584A JPS59209173A (en) | 1984-04-12 | 1984-04-12 | Sheet feeding mechanism of printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59209173A true JPS59209173A (en) | 1984-11-27 |
| JPH0438593B2 JPH0438593B2 (en) | 1992-06-24 |
Family
ID=13516368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7337584A Granted JPS59209173A (en) | 1984-04-12 | 1984-04-12 | Sheet feeding mechanism of printing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59209173A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61160265A (en) * | 1985-01-07 | 1986-07-19 | Hitachi Ltd | Thermal transfer printer |
| JPS6446247U (en) * | 1987-09-18 | 1989-03-22 | ||
| JPH01153254U (en) * | 1988-04-15 | 1989-10-23 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527709U (en) * | 1976-06-29 | 1977-01-20 | ||
| JPS533154U (en) * | 1976-06-23 | 1978-01-12 | ||
| JPS55125456U (en) * | 1979-02-28 | 1980-09-05 | ||
| JPS5633663U (en) * | 1979-08-22 | 1981-04-02 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784310A (en) * | 1972-06-07 | 1974-01-08 | Technicon Instr | System and method for improved operation of a colorimeter or like optical analysis apparatus |
-
1984
- 1984-04-12 JP JP7337584A patent/JPS59209173A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS533154U (en) * | 1976-06-23 | 1978-01-12 | ||
| JPS527709U (en) * | 1976-06-29 | 1977-01-20 | ||
| JPS55125456U (en) * | 1979-02-28 | 1980-09-05 | ||
| JPS5633663U (en) * | 1979-08-22 | 1981-04-02 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61160265A (en) * | 1985-01-07 | 1986-07-19 | Hitachi Ltd | Thermal transfer printer |
| JPS6446247U (en) * | 1987-09-18 | 1989-03-22 | ||
| JPH01153254U (en) * | 1988-04-15 | 1989-10-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0438593B2 (en) | 1992-06-24 |
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