JPS6315918B2 - - Google Patents
Info
- Publication number
- JPS6315918B2 JPS6315918B2 JP13737481A JP13737481A JPS6315918B2 JP S6315918 B2 JPS6315918 B2 JP S6315918B2 JP 13737481 A JP13737481 A JP 13737481A JP 13737481 A JP13737481 A JP 13737481A JP S6315918 B2 JPS6315918 B2 JP S6315918B2
- Authority
- JP
- Japan
- Prior art keywords
- ratchet
- pawl
- motor
- rotation
- machine frame
- 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
- 210000000078 claw Anatomy 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/76—Line-spacing mechanisms
- B41J19/78—Positive-feed mechanisms
- B41J19/80—Pawl-and-ratchet mechanisms
Landscapes
- Handling Of Sheets (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
Description
【発明の詳細な説明】
この発明は、たとえばプリンタあるいはタイプ
ライターの紙あるいはリボン等を一定量毎に送る
紙状物の送り装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feed device for feeding paper, ribbon, etc., for example, in a printer or a typewriter, in fixed amounts.
従来のプリンタにおける紙送り装置は、フイー
ドローラ軸をサイクルクラツチを介して常時回転
しているモータと連結すると共に、フイドローラ
軸にラチツトを嵌合固定し、非紙送り時において
はラチエツトに爪を係止し且つサイクルクラツチ
を切つてモーターの回転をフイードローラ軸に伝
達しないようにし、紙送り時においては爪をラチ
エツトから離すと同時にサイクルクラツチが入
り、モーターの回転をフイードローラ軸に伝達し
てフイードローラが回転して紙送りを行い、再び
ラチエツトが爪に係止することに関連してサイク
ルクラツチが切れフイードローラの回転を停止し
て紙を一定量（例えば一行毎）に送つていた。 The paper feeding device in conventional printers connects the feed roller shaft to a constantly rotating motor via a cycle clutch, and also has a latch fitted and fixed to the feed roller shaft, and a pawl is locked to the ratchet when the paper is not being fed. At the same time, the cycle clutch is disengaged to prevent the rotation of the motor from being transmitted to the feed roller shaft.When feeding the paper, the cycle clutch is engaged at the same time as the pawl is released from the ratchet, and the rotation of the motor is transmitted to the feed roller shaft, causing the feed roller to rotate. When the ratchet engages the pawl again, the cycle clutch breaks, stopping the rotation of the feed roller and feeding the paper a fixed amount (for example, one line at a time).
しかしながら、上述のようにモータはフイード
ローラの起動トルクが大きいため常時回転してい
る必要があり、消費電力が増大するという欠点が
ある。 However, as mentioned above, the motor needs to be constantly rotating because the starting torque of the feed roller is large, which has the drawback of increasing power consumption.
また、サイクルクラツチは一般的に高価であり
製造費が増すと共にサイクルクラツチは接離の際
に音を発生するため特に室内において使用される
ことが多いプリンター等では騒音対策上好ましく
ないという欠点があつた。 In addition, cycle clutches are generally expensive, increasing manufacturing costs, and cycle clutches also generate noise when they engage and disengage, making them undesirable from a noise countermeasure perspective, especially in printers, etc., which are often used indoors. Ta.
この発明は、このような欠点を解消することの
できる印字装置の送り装置を提供することを目的
とする。 An object of the present invention is to provide a feeding device for a printing device that can eliminate such drawbacks.
以下、この発明の一実施例を図面に基づいて説
明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図において、１は機枠に回転自在に支持し
た回転軸２に固定支持し、モータ３と連動して回
転駆動する従動車でモータ３とはウオーム歯車Ｗ
を介して動力伝達してある。４は前記従動車１と
対向配置すると共に機枠に回動可能に支持した軸
５の一端に固定したラチエツトで、このラチエツ
ト４の外周には爪部４ａが形成してある。 In Fig. 1, reference numeral 1 denotes a driven wheel fixedly supported on a rotating shaft 2 which is rotatably supported on the machine frame and rotated in conjunction with a motor 3. The motor 3 is a worm gear W.
Power is transmitted through the Reference numeral 4 denotes a ratchet fixed to one end of a shaft 5 which is disposed opposite to the driven wheel 1 and rotatably supported on the machine frame.The ratchet 4 has a claw portion 4a formed on its outer periphery.
６は機枠に回動可能に支持した前記ラチエツト
４の爪部４ａと係合する爪で、常時は爪６と機枠
間に介在したスプリング７によつてラチエツト４
の爪部４ａと係止する方向に付勢され、機枠に固
定したソレノイドSOLの励磁によつてラチエツ
ト４の爪部４ａから離脱する方向に移動するよう
になつている。 Reference numeral 6 denotes a pawl that engages with the pawl portion 4a of the ratchet 4 rotatably supported on the machine frame. Normally, the ratchet 4 is moved by a spring 7 interposed between the pawl 6 and the machine frame.
The ratchet 4 is biased in the direction of locking with the claw portion 4a of the ratchet 4, and is moved in the direction of separating from the claw portion 4a of the ratchet 4 by excitation of a solenoid SOL fixed to the machine frame.
８は従動車１のラチエツト４との各々の対向面
に立設したピン９，１０とを連結する弾性体とし
てのスプリングで、ラチエツト４が爪６と係止し
ている静止時においてはラチエツト４に紙送り方
向（図中反時計方向）の回転力を付与する弾性力
を有している。 Reference numeral 8 denotes a spring as an elastic body that connects pins 9 and 10 that are provided upright on each side facing the ratchet 4 of the driven vehicle 1, and when the ratchet 4 is at rest and is engaged with the pawl 6, the ratchet 4 It has an elastic force that applies a rotational force in the paper feeding direction (counterclockwise in the figure).
１１は機枠に回動可能に支持し、ラチエツトの
回転に連動して回転する紙Ｐの送り機構で、この
実施例では前記軸５の他端に固定支持したゴムロ
ーラ１１ａを用いたが軸５に公知の伝達機構を介
して伝達してもよく又、ゴムローラ１１ａの代り
にトラクターを用いてもよい。 Reference numeral 11 denotes a feeding mechanism for paper P that is rotatably supported on the machine frame and rotates in conjunction with the rotation of the ratchet.In this embodiment, a rubber roller 11a fixedly supported on the other end of the shaft 5 is used. It may be transmitted via a known transmission mechanism, or a tractor may be used instead of the rubber roller 11a.
尚、１２はゴムローラ１１ａと対向して機枠に
回動可能に支持した案内ローラである。 Note that 12 is a guide roller rotatably supported on the machine frame, facing the rubber roller 11a.
尚、モータ３とラチエツト４とはラチエツト４
の回転が停止するとモータ３への電流が遮断する
ように関連している。 In addition, the motor 3 and the ratchet 4 are the ratchet 4.
When the rotation of the motor 3 stops, the current to the motor 3 is cut off.
次に、この発明の作用を説明する。 Next, the operation of this invention will be explained.
一行目の印刷を終えて、その信号が送られると
ソレノイドSOLが極く短時間（ラチエツト４が
一回転する時間より短い時間）励磁する。このた
め爪６のアーマチユア部６ａが吸引され爪６はス
プリング７の張力に抗して第２図の状態から第３
図に示すように反時計方向に回動し始める。爪６
が反時計方向に回動し爪６とラチエツト４の爪部
４ａとの係合状態が解除するとラチエツト４はス
プリング８の復元力によつて反時計方向に若干回
転する。このためゴムローラ１１ａも反時計方向
に若干回転し紙送りを開始する。 When the first line is printed and the signal is sent, the solenoid SOL is energized for a very short time (shorter than the time it takes for the ratchet 4 to rotate once). Therefore, the armature portion 6a of the pawl 6 is attracted, and the pawl 6 moves from the state shown in FIG. 2 to the third position against the tension of the spring 7.
It will begin to rotate counterclockwise as shown in the figure. Claw 6
When the latch 4 is rotated counterclockwise and the engagement between the pawl 6 and the pawl portion 4a of the ratchet 4 is released, the ratchet 4 is slightly rotated counterclockwise by the restoring force of the spring 8. Therefore, the rubber roller 11a also rotates slightly counterclockwise and starts feeding the paper.
上記ラチエツト４の回転と同時にモータ３が回
転し、これによつて従動車１が反時計方向へ回転
を開始する。従動車１とラチエツト４はスプリン
グ８を介して連結しているためラチエツト４は今
度は従動車１の回転に伴つて反時計方向へ回転す
る。このためゴムローラ１１ａも反時計方向に回
転し紙Ｐを送る。 Simultaneously with the rotation of the ratchet 4, the motor 3 rotates, whereby the driven wheel 1 starts rotating counterclockwise. Since the driven wheel 1 and the ratchet 4 are connected via the spring 8, the ratchet 4 rotates counterclockwise as the driven wheel 1 rotates. Therefore, the rubber roller 11a also rotates counterclockwise to feed the paper P.
その後、ラチエツト４が一回転すると第４図に
示すようにスプリング７によつて元位置に復帰し
ている爪６にラチエツト４の爪部ａが係止してラ
チエツト４が停止し、これに伴つてゴムローラ１
１ａも一回転して停止し紙Ｐを所定量だけ送る。
ラチエツト４の回転の停止と同時にモータ３も停
止する。はしかしモータ３はその後も慣性力によ
つて若干駆動しており、このモータ３の慣性力に
よる従動車１の回転エネルギはスプリング８に吸
収されてスプリン８が引張され次にゴムローラ１
１ａが始動する時の起動力となる。 Thereafter, when the ratchet 4 rotates once, the claw portion a of the ratchet 4 engages with the claw 6 which has been returned to its original position by the spring 7, as shown in Fig. 4, and the ratchet 4 stops. Rubber roller 1
1a also rotates once and stops, and feeds the paper P by a predetermined amount.
At the same time as the ratchet 4 stops rotating, the motor 3 also stops. However, the motor 3 continues to be driven slightly by the inertia force after that, and the rotational energy of the driven wheel 1 due to the inertia force of the motor 3 is absorbed by the spring 8 and the spring 8 is pulled, and then the rubber roller 1
1a becomes the starting force when starting.
尚、この実施例ではプリンターの紙送り装置に
応用した実施例を示したが、これに限定されるも
のではなくインクリボン、コレクトテープ等の送
り装置としても利用できるものである。 Although this embodiment shows an example in which the present invention is applied to a paper feeding device of a printer, the present invention is not limited to this and can also be used as a feeding device for ink ribbons, collect tapes, etc.
以上述べたようにこの発明によれば、
モータによる送り機構始動時に弾性体の弾性復元
力が更に送り機構の回転方向に作用するようにし
たので、小型の起動トルクの小きいモータを送り
機構の始動毎に駆動しても所定の送り力が保証さ
れ、従来の如くモータを常時回転させている必要
がない。したがつてモータの消費電力を著しく削
減することができる。 As described above, according to the present invention, when the feed mechanism is started by the motor, the elastic restoring force of the elastic body is further applied in the rotating direction of the feed mechanism, so that a small motor with low starting torque can be used as the feed mechanism. A predetermined feeding force is guaranteed even if the motor is driven every time the motor is started, and there is no need to constantly rotate the motor as in the past. Therefore, the power consumption of the motor can be significantly reduced.
また、高価でしかも騒音の発生するサイクルク
ラツチを全く使用していないので安価で、音の静
かな送り装置を提供することができるという効果
を奏する。 Further, since no expensive and noisy cycle clutch is used, it is possible to provide an inexpensive and quiet feeding device.
第１図は、この発明の一実施例装置の分解斜視
図、第２図〜第４図はこの発明の一実施例装置の
動作説明図である。
１……従動車、４……ラチエツト、６……爪、
８……弾性体としてのスプリング、９……送り機
構。
FIG. 1 is an exploded perspective view of a device according to an embodiment of the present invention, and FIGS. 2 to 4 are explanatory views of the operation of the device according to an embodiment of the present invention. 1...Driver, 4...Ratchet, 6...Claw,
8... Spring as an elastic body, 9... Feeding mechanism.
Claims (1)
一方向に回転する従動車と、 従動車の回転軸線と一致する軸線を中心に機枠
に回動可能に支持し、かつ従動車と対向配置し外
周に突起する爪部をもつラチエツトと、 常時はラチエツトの爪部と係合する方向に付勢
され、ソレノイドの励磁によつてラチツトの爪部
から離脱する方向に移動する爪と、 爪とラチエツトの爪部との係合後のモータの慣
性回転力を蓄勢し且つ離脱に関連して蓄勢力を放
出してラチエツトを一方向に回動するように弾性
力を有し従動車とラチエツト間に連結した弾性体
と、 機枠に回動可能に支持し、ラチエツトの回転に
連動して回転する送り機構とを備え、ラチエツト
の回転停止に関連してモータ駆動を停止し、ラチ
エツトの回転開始に関連してモータを駆動するよ
うに関連したことを特徴とする印字装置における
紙状物の送り装置。[Scope of Claims] 1. A driven wheel that is rotatably supported on the machine frame and rotates in one direction in conjunction with a motor, and that is rotatable on the machine frame about an axis that coincides with the rotation axis of the driven wheel A ratchet that supports the driven vehicle and has a pawl protruding from the outer periphery, and is normally biased in a direction to engage with the pawl of the ratchet, and is detached from the pawl of the ratchet by energizing a solenoid. a pawl that moves in a direction, and stores the inertial rotational force of the motor after engagement of the pawl with the pawl portion of the ratchet, and releases the stored force upon disengagement to rotate the ratchet in one direction. It is equipped with an elastic body that has an elastic force and is connected between the driven wheel and the ratchet, and a feed mechanism that is rotatably supported on the machine frame and rotates in conjunction with the rotation of the ratchet. 1. A feeding device for a paper-like material in a printing device, characterized in that the motor is stopped when the rotation of the ratchet is started, and the motor is driven when the rotation of the ratchet is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13737481A JPS5838186A (en) | 1981-08-31 | 1981-08-31 | Feeder for papers in printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13737481A JPS5838186A (en) | 1981-08-31 | 1981-08-31 | Feeder for papers in printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5838186A JPS5838186A (en) | 1983-03-05 |
| JPS6315918B2 true JPS6315918B2 (en) | 1988-04-06 |
Family
ID=15197186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13737481A Granted JPS5838186A (en) | 1981-08-31 | 1981-08-31 | Feeder for papers in printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5838186A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1162944B (en) * | 1983-09-29 | 1987-04-01 | Olivetti & Co Spa | MACHINE OF INTERLINEA FOR WRITING MACHINE |
| JPS622051A (en) * | 1985-06-26 | 1987-01-08 | Toyota Motor Corp | Control method for speed change in automatic transmission for vehicle |
| JPS6280343A (en) * | 1985-10-01 | 1987-04-13 | Toyota Motor Corp | Speed change controller for automatic transmission for car |
| JPH0743026B2 (en) * | 1985-12-12 | 1995-05-15 | トヨタ自動車株式会社 | Lubricant amount control device for automatic transmission for vehicles |
| JPS62159842A (en) * | 1986-01-07 | 1987-07-15 | Toyota Motor Corp | Oil pressure control device for automatic variable transmission |
| JP2532407B2 (en) * | 1986-10-22 | 1996-09-11 | 株式会社テック | Paper feeder for printing machine |
| JPH01107406A (en) * | 1987-10-20 | 1989-04-25 | Chatani Sangyo Kk | Surface lighting apparatus |
| JP2595067B2 (en) * | 1988-08-18 | 1997-03-26 | 東ソー株式会社 | Backlight for LCD panel |
| JPH0670882B2 (en) * | 1988-08-23 | 1994-09-07 | 株式会社明拓システム | Edge light panel using single plate |
| KR0152279B1 (en) * | 1991-11-30 | 1998-10-15 | 히로가즈 마츠이 | Edge light panel and its production |
| JP2630714B2 (en) * | 1992-10-08 | 1997-07-16 | 茶谷産業株式会社 | Surface lighting device |
-
1981
- 1981-08-31 JP JP13737481A patent/JPS5838186A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5838186A (en) | 1983-03-05 |
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