JPH0430914B2 - - Google Patents

Info

Publication number
JPH0430914B2
JPH0430914B2 JP59134154A JP13415484A JPH0430914B2 JP H0430914 B2 JPH0430914 B2 JP H0430914B2 JP 59134154 A JP59134154 A JP 59134154A JP 13415484 A JP13415484 A JP 13415484A JP H0430914 B2 JPH0430914 B2 JP H0430914B2
Authority
JP
Japan
Prior art keywords
paper
transmission means
paper feeding
gear
printer
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 - Lifetime
Application number
JP59134154A
Other languages
Japanese (ja)
Other versions
JPS6112366A (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP13415484A priority Critical patent/JPS6112366A/en
Publication of JPS6112366A publication Critical patent/JPS6112366A/en
Publication of JPH0430914B2 publication Critical patent/JPH0430914B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/48Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts

Landscapes

  • Handling Of Sheets (AREA)
  • Handling Of Cut Paper (AREA)

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は、パーソナルコンピユータ等のプリン
タ本体の任意の長さにカツトされている印字用紙
を自動的に供給するプリンタ用給紙装置に関す
る。
[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides a feeder for a printer, such as a personal computer, that automatically supplies printing paper cut to an arbitrary length. Regarding paper devices.

(従来の技術) この種の給紙装置は、給紙装置側に駆動源を有
するものと、プリンタ本体のプラテン駆動モータ
から歯車等を介して駆動力を受けるものとがあ
り、後者のプリンタ本体から駆動力を受ける給紙
装置は、給紙装置自体の小形軽量化を図れるとい
う利点を有している。
(Prior Art) This type of paper feeding device includes one that has a drive source on the paper feeding device side, and one that receives driving force from a platen drive motor of the printer main body via gears etc. A paper feeding device that receives driving force from a paper feeding device has the advantage that the paper feeding device itself can be made smaller and lighter.

そして、プリンタ本体から駆動力を受ける給紙
装置は、プリンタ本体からの一定量の駆動力によ
り給紙ローラが一定量回転し、用紙を一枚毎にプ
リンタ本体のプラテンへ送るようになつている。
The paper feeding device, which receives driving force from the printer body, rotates the paper feed roller by a certain amount by a certain amount of driving force from the printer body, and feeds each sheet of paper to the platen of the printer body. .

(発明が解決しようとする問題点) しかし、上記従来の給紙装置では、用紙の大き
さ毎に専用の給紙装置を必要としており、すなわ
ち、用紙の長短により例えば用紙が長尺の場合に
は送りの途中で給紙ローラが停止しこの給紙ロー
ラによつて用紙を挾持してしまつて印字のための
紙送りができず、また、用紙が短い場合には次の
用紙をも送つてしまうということから、単体の給
紙装置では異つた大きさの用紙を給紙することは
できなかつた。
(Problems to be Solved by the Invention) However, the conventional paper feeding device described above requires a dedicated paper feeding device for each size of paper. The paper feed roller stops mid-feed and the paper gets caught between the paper feed rollers, making it impossible to feed the paper for printing.Also, if the paper is too short, the next paper cannot be fed. Because of the storage, it was not possible to feed sheets of different sizes with a single sheet feeding device.

本発明は、このような点に鑑みなされたもの
で、異つた大きさの用紙をプリンタ本体に供給す
ることのできるプリンタ用給紙装置を提供するこ
とを目的とするものである。
The present invention has been made in view of the above points, and an object of the present invention is to provide a printer paper feeding device that can supply sheets of different sizes to a printer main body.

〔発明の構成〕[Structure of the invention]

(問題点を解決するための手段) 本発明は、給紙された用紙Pに印字するプリン
タ本体2から正逆回転の駆動力を伝達する伝達手
段3と、この伝達手段3との選択的な接続時に伝
達手段3の正回転に連動回転して上記用紙Pをプ
リンタ本体2に給紙するとともに逆回転には非連
動とし、かつ、非接続時には回転自在とする給紙
ローラ39を有する給紙手段4と、上記伝達手段
3の逆回転により伝達手段3と上記給紙手段4と
を接続させる切換手段5と、上記伝達手段3の逆
回転中に初期状態にセツトされるとともに伝達手
段3の正回転と同時に動作が開始され、この動作
開始から一定のタイミング後に伝達手段3と上記
給紙手段4との接続を解除する解除手段6とを具
備したものである。
(Means for Solving the Problems) The present invention provides a transmission means 3 for transmitting forward and reverse rotational driving force from the printer main body 2 for printing on fed paper P, and a selective transmission method for the transmission means 3. A paper feeding roller 39 that rotates in conjunction with the forward rotation of the transmission means 3 when connected to feed the paper P to the printer body 2, does not rotate in conjunction with reverse rotation, and is rotatable when not connected. means 4; a switching means 5 for connecting the transmission means 3 and the paper feeding means 4 when the transmission means 3 rotates in reverse; and a switching means 5 which is set to an initial state during the reverse rotation of the transmission means 3, The operation is started at the same time as the forward rotation, and a release means 6 is provided for disconnecting the transmission means 3 and the paper feeding means 4 after a certain timing from the start of the operation.

(作 用) 本発明では、用紙Pをプリンタ本体2に給紙す
る場合、まず、プリンタ本体2からの駆動力によ
り伝達手段3が逆回転し、切換手段5により伝達
手段3と給紙手段4とが接続される。このとき、
給紙手段4の給紙ローラ39は逆回転せずに、ま
た、伝達手段3の逆回転中に解除手段6が初期状
態にセツトされる。
(Function) In the present invention, when feeding the paper P to the printer main body 2, first, the driving force from the printer main body 2 causes the transmission means 3 to reversely rotate, and the switching means 5 switches the transmission means 3 and the paper feeding means 4. are connected. At this time,
The paper feed roller 39 of the paper feed means 4 does not rotate in reverse, and the release means 6 is set to the initial state while the transmission means 3 is rotating in reverse.

次に、プリンタ本体2からの駆動力により伝達
手段3が正回転し、給紙手段4の給紙ローラ39
が連動回転し、用紙Pがプリンタ本体2に給紙さ
れる。この伝達手段3の正回転と同時に初期状態
にセツトされていた解除手段6の動作が開始さ
れ、この解除手段6により動作開始から一定のタ
イミング後に伝達手段3との給紙手段4との接続
が解除される。そのため、給紙完了後は、給紙手
段4がフリー状態となり、用紙Pのプリンタ本体
2側への引き込みが許容される。
Next, the driving force from the printer body 2 causes the transmission means 3 to rotate forward, and the paper feed roller 39 of the paper feed means 4
rotates in conjunction with each other, and the paper P is fed to the printer main body 2. Simultaneously with the normal rotation of the transmission means 3, the operation of the release means 6 which had been set to the initial state is started, and the connection between the transmission means 3 and the paper feeding means 4 is established by this release means 6 after a certain timing from the start of the operation. It will be canceled. Therefore, after paper feeding is completed, the paper feeding means 4 becomes free, and the paper P is allowed to be drawn into the printer main body 2 side.

(実施例) 以下、本発明の一実施例の構成を図面を参照し
て説明する。
(Example) Hereinafter, the configuration of an example of the present invention will be described with reference to the drawings.

第1図および第2図において、1は給紙装置
で、この給紙装置1は、プリンタ本体2から正逆
回転の駆動力を伝達する伝達手段3と、この伝達
手段3との接続により所定寸法に裁断された例え
ばA−4判、B−5判などの用紙Pをプリンタ本
体2へ供給する給紙手段4と、この給紙手段4を
伝達手段3に接続させる切換手段5と、伝達手段
3に接続された給紙手段4の接続を解除する解除
手段6とから構成されている。
In FIGS. 1 and 2, 1 is a paper feeding device, and this paper feeding device 1 is connected to a transmission means 3 that transmits forward and reverse rotational driving force from the printer main body 2, and is connected to a predetermined direction. A paper feeding means 4 for supplying paper P cut to size, such as A-4 size or B-5 size, to the printer main body 2, a switching means 5 for connecting this paper feeding means 4 to the transmission means 3, and a transmission means. and a release means 6 for releasing the connection of the paper feeding means 4 connected to the means 3.

上記プリンタ本体2は、一端にプラテン歯車1
0が設けられ駆動モータ(図示せず)により回転
駆動されるプラテン11を有し、このプラテン1
1の周面に紙ガイド12に沿つて供給された用紙
Pを挾持しプラテン11の周囲に圧着する始端圧
着ローラ13と、この始端圧着ローラ13に対し
てプラテン11周面の略対称位置に、図示しない
案内部材によつてプラテン11に巻回された用紙
Pを圧着する終端圧着ローラ14とが添設されて
いる。また、このプラテン11の近傍に上記給紙
装置1をプリンタ本体2に装着するための位置決
め軸15が設けられている。なお、プラテン11
の周面に対向して印字ヘツド(第2図中矢印Hの
位置)および用紙Pの有無を検知するエンドスイ
ツチ(第2図中矢印Sの位置)とがそれぞれ配設
されている。
The printer main body 2 has a platen gear 1 at one end.
0 and includes a platen 11 which is rotatably driven by a drive motor (not shown).
A starting end pressure bonding roller 13 which pinches the paper P fed along the paper guide 12 on the circumferential surface of the paper guide 12 and presses it around the platen 11; An end pressure roller 14 is attached that presses the paper P wound around the platen 11 by means of a guide member (not shown). Further, a positioning shaft 15 for mounting the paper feeding device 1 on the printer main body 2 is provided near the platen 11. In addition, platen 11
A print head (position indicated by arrow H in FIG. 2) and an end switch (position indicated by arrow S in FIG. 2) for detecting the presence or absence of paper P are arranged opposite to the circumferential surface of the printer.

上記給紙装置1は、一対の側板20a,20b
を有し、この両側板20a,20bの先端下部に
は上記位置決め軸15に係合する逆U字状の係止
片21がそれぞれ形成されているとともに、この
係止片21が位置決め軸15上に係合した際位置
決め軸15の下部に引掛けられる係止レバー22
が設けられ、この係止レバー22は拡開ばね23
によつて係止方向に附勢されている。また、両側
板20a,20b間には重積した複数枚の用紙P
を載置する給紙台24が上記プラテン11に対向
する方向に傾斜して設けられているとともに、こ
の給紙台24の前方に印字が終了し上記プラテン
11から排出された用紙Pが重積される排紙台2
5が設けられている。
The paper feeding device 1 includes a pair of side plates 20a and 20b.
An inverted U-shaped locking piece 21 that engages with the positioning shaft 15 is formed at the lower end of each side plate 20a, 20b. A locking lever 22 that is hooked to the lower part of the positioning shaft 15 when engaged with the
is provided, and this locking lever 22 is connected to an expansion spring 23.
energized in the locking direction by. In addition, a plurality of sheets of paper P are piled up between the side plates 20a and 20b.
A paper feed tray 24 on which the paper is placed is inclined in a direction facing the platen 11, and sheets P that have finished printing and have been discharged from the platen 11 are piled up in front of the paper feed tray 24. output tray 2
5 is provided.

上記伝達手段3は、両側板20a,20bの各
外側面に伝達軸26により連結された一対の主歯
車27a,27bが設けられている。この一方の
主歯車27aは従動歯車28を介して上記プラテ
ン11のプラテン歯車10に噛合され、また、他
方の主歯車27bの内方の一側に主歯車27bよ
り小径の副歯車29が設けられている。
The transmission means 3 is provided with a pair of main gears 27a, 27b connected by a transmission shaft 26 on each outer surface of the side plates 20a, 20b. This one main gear 27a is meshed with the platen gear 10 of the platen 11 via a driven gear 28, and a sub gear 29 having a smaller diameter than the main gear 27b is provided on one inner side of the other main gear 27b. ing.

上記給紙手段4は、特に第3図および第4図に
示すように、上記側板20bの外側に中間部を支
軸31に軸支された可動アーム32が揺動可能に
設けられ、このアーム32の先端には上記主歯車
27bに噛合可能な接離歯車33および駆動プー
リ34とが一体に回動自在に軸支され、また、ア
ーム32の後端には一端を側板20bに軸支され
た拡開ばね35が取着され、この拡開ばね35に
よりアーム32の先端部は上方あるいは下方の2
点位置のいずれかに附勢される。このアーム32
の上方の近傍に小径歯車36および従動プーリ3
7が一体に回動自在に設けられ、この従動プーリ
37には上記駆動プーリ34との間にタイミング
ベルト38が張設され、また、小径歯車36は上
記給紙台24上に配置される複数の給紙ローラ3
9の支持軸40に連給した給紙歯車41が噛合わ
されている。この給紙歯車41と支持軸40とは
一方向クラツチで結合しており、歯車41が第3
図中右回り方向に正回転したときのみ支持軸40
が連動回転されるようになつている。
As particularly shown in FIGS. 3 and 4, the paper feeding means 4 is provided with a movable arm 32 that is swingably supported on the outside of the side plate 20b and whose intermediate portion is pivotally supported on a support shaft 31. At the tip of the arm 32, a separation gear 33 and a drive pulley 34, which can mesh with the main gear 27b, are integrally rotatably supported, and at the rear end of the arm 32, one end is supported pivotally on the side plate 20b. An expansion spring 35 is attached, and this expansion spring 35 allows the tip of the arm 32 to move upwardly or downwardly.
Any of the point positions is energized. This arm 32
A small diameter gear 36 and a driven pulley 3 are located near the upper part of the
A timing belt 38 is stretched between the driven pulley 37 and the driving pulley 34, and a small diameter gear 36 is connected to a plurality of small diameter gears 36 disposed on the paper feed tray 24. paper feed roller 3
A continuously fed paper feed gear 41 is meshed with the support shaft 40 of No. 9. This feed gear 41 and the support shaft 40 are connected by a one-way clutch, and the gear 41 is connected to the third
The support shaft 40 only rotates clockwise in the figure.
are designed to be rotated in conjunction with each other.

上記切換手段5は、切換レバー45と、切換板
46と、切換板駆動部47とから構成され、上記
切換レバー45は略L字状に形成されて中間部が
上記側板20bに回動自在に軸支されるとともに
一端部が上記アーム32の先端部に取着され、ま
た、上記切換板46は長溝孔48を有して上記側
板20bに支持ねじ49により摺動自在に設けら
れ、この切換板46の後端は上記レバー45の他
端に当接し、また、前端は上部に引張ばね50が
張設され、下部にピン51が垂直に突設されてい
る。
The switching means 5 is composed of a switching lever 45, a switching plate 46, and a switching plate drive section 47. The switching lever 45 is formed in a substantially L shape, and the middle part thereof is rotatably attached to the side plate 20b. The switching plate 46 is pivotally supported and one end is attached to the tip of the arm 32, and the switching plate 46 has a long slot 48 and is slidably provided on the side plate 20b with a support screw 49. The rear end of the plate 46 abuts the other end of the lever 45, and the front end has a tension spring 50 stretched over the top and a pin 51 vertically protruding from the bottom.

上記切換駆動部47は、第5図に示すように、
上記主歯車27bに噛合う切換歯車52を有し、
この切換歯車52の一方の側板52aには圧着板
53の円筒状のスリーブ54が摺動自在に嵌入さ
れ、また、切換歯車52の他方の側面52bは開
口されてコイルばね55および圧着板53のスリ
ーブ54内に摺動自在に挿入されるスリーブ56
を有した外側板57とが嵌入され、そして、外側
板57に対して切換歯車52はコイルばね55に
よつて圧着板53に圧着され、この切換歯車52
と圧着板53との間にフリクシヨン作用が形成さ
れている。また、圧着板53のスリーブ54が設
けられた側面に対して反対の側面には溝53aが
設けられ、この溝53aの縁部の円周上の対向位
置に一対の突起53bが設けられている。また、
この圧着板53の溝53aが設けられた側面には
その溝53a内を移動するとともに突起53bと
係合する一対の突部58aを有したカム板58が
ばね59を介して接合される。このばね59は両
端部をそれぞれ両板53,58に取付けられ、こ
のカム板58に対し圧着板53を上記切換歯車5
2の正回転方向(第5図中右回り方向)に附勢
し、すなわち、圧着板53が上記切換歯車52の
逆回転方向(第5図中左回り方向)に回転すると
ばね59の附勢によりカム板58が追従して逆回
転方向に回転する。また、カム板58の突部58
aが設けられた側面に対して反対の側面には上記
切換板46のピン51が嵌遊される溝58bが設
けられ、この溝58bの縁部の円周上の対称位置
には上記切換歯車52の逆回転方向(第5図中左
回り方向)にのみ上記ピン51が係合される係合
凹部58cを有した一対の係止片58dが設けら
れている。
The switching drive section 47, as shown in FIG.
It has a switching gear 52 that meshes with the main gear 27b,
A cylindrical sleeve 54 of a crimp plate 53 is slidably fitted into one side plate 52 a of the switching gear 52 , and the other side 52 b of the switching gear 52 is opened to accommodate a coil spring 55 and a crimp plate 53 . Sleeve 56 slidably inserted into sleeve 54
An outer plate 57 having a
A friction effect is formed between the pressure bonding plate 53 and the pressure bonding plate 53. Further, a groove 53a is provided on the side surface of the crimp plate 53 opposite to the side surface on which the sleeve 54 is provided, and a pair of protrusions 53b are provided at opposing positions on the circumference of the edge of this groove 53a. . Also,
A cam plate 58 having a pair of protrusions 58a that moves within the groove 53a and engages with the protrusion 53b is joined to the side surface of the crimp plate 53 with the groove 53a via a spring 59. This spring 59 has both ends attached to both plates 53 and 58, respectively, and the crimping plate 53 is attached to the switching gear 58 against the cam plate 58.
In other words, when the crimp plate 53 rotates in the reverse rotation direction (counterclockwise direction in FIG. 5) of the switching gear 52, the spring 59 is biased. As a result, the cam plate 58 follows and rotates in the reverse rotation direction. In addition, the protrusion 58 of the cam plate 58
A groove 58b into which the pin 51 of the switching plate 46 is fitted is provided on the side opposite to the side where a is provided, and the switching gear is located at a symmetrical position on the circumference of the edge of this groove 58b. A pair of locking pieces 58d are provided, each having an engaging recess 58c with which the pin 51 is engaged only in the reverse direction of rotation of the pin 52 (counterclockwise direction in FIG. 5).

上記解除手段6は、第6図に示すように、上記
副歯車29に噛合う解除歯車61を側板20bに
回動自在に軸支し、この解除歯車61の側板20
b側の一側面に解除歯車61の正回転時のみに係
合して回転する円板62がラチエツト結合され、
さらに、この円板62の一側面にはこの円板62
に突設された突起62aが係合する半円状の切欠
部63を有しこの切欠部63の両切欠面63a,
63bが突起62aに当接するまでの間の約半回
転可能なカム板64が配設される。また、このカ
ム板64と円板62との間にはばね65が介在さ
れ、このばね65は円板62を解除歯車61へ圧
着するとともに、円板62の突起62aをカム板
64の一方の切欠面63aに附勢している。ま
た、カム板64の側面20b側の一側には切欠部
63の側部に突出する突部64aが設けられ、こ
の突部64aは上記アーム32の支軸31に回動
自在に軸支された解除レバー67の先端に設けら
れたピン68と係合が可能で、この解除レバー6
7の上下部は上記アーム32に設けた係止棒69
および上記側板20bに設けられた固定棒70に
当接する。
As shown in FIG. 6, the release means 6 has a release gear 61 that meshes with the auxiliary gear 29 rotatably supported on a side plate 20b.
A disc 62 that engages and rotates only when the release gear 61 rotates forward is ratcheted to one side of the b side.
Furthermore, on one side of this disk 62, this disk 62
It has a semicircular notch 63 that is engaged with a protrusion 62a protruding from both sides 63a of this notch 63,
A cam plate 64 is provided that can rotate approximately half a turn until the cam plate 63b comes into contact with the protrusion 62a. Further, a spring 65 is interposed between the cam plate 64 and the disk 62, and this spring 65 presses the disk 62 to the release gear 61 and pushes the protrusion 62a of the disk 62 onto one side of the cam plate 64. The notch surface 63a is energized. Further, a protrusion 64a that protrudes to the side of the notch 63 is provided on one side of the side surface 20b of the cam plate 64, and this protrusion 64a is rotatably supported on the support shaft 31 of the arm 32. The release lever 67 can be engaged with a pin 68 provided at the tip of the release lever 67.
The upper and lower parts of 7 are locking rods 69 provided on the arm 32.
and comes into contact with the fixing rod 70 provided on the side plate 20b.

また、上記両側板20a,20b間には、第1
図および第2図に示すように、上記プラテン11
から排出された用紙Pを排紙台25に移送する一
対の排紙ローラ71a,71bが複数設けられ、
この一方の排紙ローラ71aの回転軸72の側板
20aから突出する一端部には上記の一方の主歯
車27aに噛合う排紙歯車73が設けられてい
る。
Further, between the side plates 20a and 20b, a first
As shown in the figure and FIG. 2, the platen 11
A plurality of pairs of paper ejection rollers 71a and 71b are provided to transport the paper P ejected from the paper ejection table 25,
A paper ejection gear 73 that meshes with the one main gear 27a is provided at one end of the rotating shaft 72 of the one paper ejection roller 71a that protrudes from the side plate 20a.

そうして、給紙台24から供給された用紙Pが
プリンタ本体2のプラテン11に巻回されている
状態で駆動モータ(図示せず)によりプラテン1
1が回動し、用紙Pへの印字および紙送りが行わ
れる。そして、用紙Pの終端がエンドスイツチS
により検知されると、印字動作は中止され用紙P
は排紙台25に送出される。
Then, while the paper P fed from the paper feed table 24 is wound around the platen 11 of the printer main body 2, a drive motor (not shown) is driven to the platen 11.
1 rotates, printing on paper P and paper feeding are performed. Then, the end of the paper P is switched to the end switch S.
When detected, the printing operation is stopped and the paper P
is delivered to the paper output table 25.

次に、給紙のための切換動作に入ると、プリン
タ本体2の駆動モータが逆回転し、各歯車10,
28,27aおよび伝達軸26を介して主歯車2
7bが逆回転される。この主歯車27bの逆回転
(第3図反時計回り方向)に伴つて切換歯車52、
圧着板53およびばね59を介してカム板58が
逆回転(第3図時計回り方向)し、このカム板5
8の係止片58dに切換板46のピン51が係合
する。この係合により圧着板53に対するカム板
58のばね59による追従動作が一旦断たれ、圧
着板53のみが約半回転した後、圧着板53の突
起53bがカム板58の突部58aに当接してカ
ム板58がさらに逆回転する。
Next, when the switching operation for paper feeding begins, the drive motor of the printer main body 2 rotates in the reverse direction, and each gear 10,
28, 27a and the transmission shaft 26 to the main gear 2.
7b is reversely rotated. With this reverse rotation of the main gear 27b (counterclockwise direction in FIG. 3), the switching gear 52,
The cam plate 58 rotates in the opposite direction (clockwise direction in FIG. 3) via the crimp plate 53 and the spring 59, and this cam plate 5
The pin 51 of the switching plate 46 engages with the locking piece 58d of 8. Due to this engagement, the following action of the spring 59 of the cam plate 58 against the crimp plate 53 is temporarily interrupted, and after only the crimp plate 53 rotates about half a rotation, the protrusion 53b of the crimp plate 53 comes into contact with the protrusion 58a of the cam plate 58. The cam plate 58 further rotates in the reverse direction.

そして、カム板58により切換板46が引張ば
ね50に抗して第3図右方に移動し、切換レバー
45を介してアーム32が支軸31を中心に第3
図反時計回り方向に揺動し、アーム32の先端の
接離歯車33が主歯車27bと噛合し、プリンタ
本体2の駆動モータが所定時間後に停止し、切換
動作が完了する。
Then, the switching plate 46 is moved to the right in FIG. 3 by the cam plate 58 against the tension spring 50, and the arm 32 is moved into the third
The arm 32 swings counterclockwise in the figure, the contact gear 33 at the tip of the arm 32 meshes with the main gear 27b, the drive motor of the printer main body 2 stops after a predetermined time, and the switching operation is completed.

なお、接離歯車33が主歯車27bに噛合した
際、主歯車27bおよび切換歯車52が逆回転し
ているが、切換歯車52と圧着板53との間はフ
リクシヨン動作によりスリツプが生じるので回転
は達成されない。また、接離歯車33が主歯車2
7bに噛合することにより給紙歯車41が逆回転
するが給紙歯車41と支持軸40は一方向クラツ
チ結合しているので支持軸40の給紙ローラ39
に回転が伝達されることはない。
Note that when the separation gear 33 meshes with the main gear 27b, the main gear 27b and the switching gear 52 are rotating in the opposite direction, but since a slip occurs between the switching gear 52 and the crimping plate 53 due to the friction action, the rotation is slow. not achieved. Furthermore, the approaching and separating gear 33 is connected to the main gear 2.
7b, the paper feed gear 41 rotates in the reverse direction, but since the paper feed gear 41 and the support shaft 40 are connected in a one-way clutch, the paper feed roller 39 of the support shaft 40 rotates in the opposite direction.
No rotation is transmitted to the

また、主歯車27bの逆回転中において、副歯
車29に噛合する解除歯車61を介して円板62
およびカム板64が逆回転(第3図時計回り方
向)し、カム板64の突部64aが解除レバー6
7のピン68に係合し、解除歯車61と円板62
との間のラチエツト機構にスリツプが生じてその
係合状態が保たれる。そして、突部64aがピン
68に係合した状態で、解除手段6が初期状態に
セツトされる。
Also, during the reverse rotation of the main gear 27b, the disc 62
Then, the cam plate 64 rotates in the opposite direction (clockwise direction in FIG. 3), and the protrusion 64a of the cam plate 64 moves to
7, the release gear 61 and the disc 62
A slip occurs in the ratchet mechanism between the two and the engaged state is maintained. Then, with the protrusion 64a engaged with the pin 68, the release means 6 is set to the initial state.

次に、プリンタ本体2の駆動モータが正回転さ
れて主歯車27bが正回転(第4図時計回り方
向)する。これに伴い接離歯車33を介して回転
が給紙歯車41に伝達されて給紙ローラ39が正
回転(第4図時計回り方向)し、用紙Pがプリン
タ本体2内のプラテン11へ送出される。
Next, the drive motor of the printer main body 2 is rotated in the normal direction, and the main gear 27b is rotated in the normal direction (clockwise in FIG. 4). Along with this, the rotation is transmitted to the paper feed gear 41 via the contact/separation gear 33, the paper feed roller 39 rotates forward (clockwise in FIG. 4), and the paper P is sent to the platen 11 in the printer main body 2. Ru.

また、切換歯車52を介してカム板58が正回
転(第4図反時計回り方向)し、切換板46のピ
ン51の係合が解かれるとともにピン51はカム
板58の溝58b内を遊動する。そのため、切換
板46は引張ばね50によつて引戻されるが、ア
ーム32はばね35により附勢されているので、
接離歯車33は主歯車27bに噛合した状態に保
たれる。
Further, the cam plate 58 rotates forward (counterclockwise in FIG. 4) via the switching gear 52, and the pin 51 of the switching plate 46 is disengaged, and the pin 51 moves freely within the groove 58b of the cam plate 58. do. Therefore, the switching plate 46 is pulled back by the tension spring 50, but since the arm 32 is biased by the spring 35,
The approaching/separating gear 33 is maintained in mesh with the main gear 27b.

また、副歯車29の正回転に伴い解除歯車61
を介してカム板64が正回転(第4図反時計回り
方向)し、図4に示す如くカム板64の突部64
aが解除レバー67のピン68に当接すると、ア
ーム32が負荷となつてカム板64の回転が一時
停止される。そして、カム板64の一方の切欠面
63aに当接していた円板62の突起62aがば
ね65に抗して他方の切欠面63bに当接押動す
ると、カム板64の回転が再開される。このカム
板64の回転により、カム板64の突部64aが
解除レバー67のピン68を押上げて解除レバー
67とともにアーム32を第4図時計回り方向に
揺動させる。従つて、接離歯車33と主歯車27
bとの噛合が解除されて給紙動作が完了し、この
時点で用紙Pの先端はプラテン11と始端圧着ロ
ーラ13との間に挾持されている。なお、主歯車
27bから離れた接離歯車33がフリー状態にな
つて給紙ローラ39が回動自在となるので、給紙
ローラ39が用紙Pの後端を挾持していても用紙
Pをプリンタ本体2に引込むことができる。
Further, as the secondary gear 29 rotates forward, the release gear 61
The cam plate 64 rotates forward (counterclockwise in FIG. 4) through the
When a comes into contact with the pin 68 of the release lever 67, the arm 32 becomes a load and the rotation of the cam plate 64 is temporarily stopped. Then, when the protrusion 62a of the disc 62 that was in contact with one notch surface 63a of the cam plate 64 is pressed against the other notch surface 63b against the spring 65, the rotation of the cam plate 64 is restarted. . This rotation of the cam plate 64 causes the protrusion 64a of the cam plate 64 to push up the pin 68 of the release lever 67, causing the arm 32 to swing together with the release lever 67 in the clockwise direction in FIG. Therefore, the approach gear 33 and the main gear 27
b is disengaged and the sheet feeding operation is completed, and at this point the leading edge of the sheet P is held between the platen 11 and the starting end pressure roller 13. Note that the contact gear 33 that is separated from the main gear 27b becomes free and the paper feed roller 39 can rotate freely, so even if the paper feed roller 39 is holding the rear end of the paper P, the paper P cannot be transferred to the printer. It can be drawn into the main body 2.

なお、例えば伝達手段3の正回転による給紙動
作中に停電や紙詰まりで給紙動作が中断された場
合、紙詰まり等を解消した後、伝達手段3の正回
転を継続させて給紙動作を一巡させることにより
初期状態に戻すのではなく、伝達手段3を逆回転
させて解除手段6を初期状態にセツトするため、
ただちに再起動することができる。
For example, if the paper feeding operation is interrupted due to a power outage or a paper jam while the paper feeding operation is being performed by the forward rotation of the transmission means 3, after clearing the paper jam etc., the forward rotation of the transmission means 3 is continued and the paper feeding operation is resumed. In order to set the release means 6 to the initial state by rotating the transmission means 3 in the opposite direction, instead of returning to the initial state by rotating the
It can be restarted immediately.

また、主歯車27bおよび切換歯車52が逆回
転を始めても圧着板53とカム板58との間には
遊び、すなわち、不感帯を設けてあるので、印字
時にプラテン11が少し戻る程度に駆動モータを
逆回転しても、カム板58により切換板46を摺
動させることはなく、よつて、切換動作が開始す
ることはない。
Furthermore, even if the main gear 27b and the switching gear 52 start rotating in the opposite direction, there is play, that is, a dead zone, between the crimp plate 53 and the cam plate 58, so that the drive motor is turned off so that the platen 11 returns a little during printing. Even if it rotates in the opposite direction, the cam plate 58 will not cause the switching plate 46 to slide, and therefore the switching operation will not start.

また、プリンタ本体2に設けた制御手段80に
よる制御を第7図のフローチヤートに示し、そし
て、この制御手段80により、プリンタ本体2に
給紙装置1が装着され、プリンタ本体2が接続さ
れるホストコンピユーダとの接続関係(オンライ
ン−ローカル)をセレクトスイツチにより選択さ
れると、エンドスイツチSがオン状態にあるとき
駆動モータを一定量逆回転させても切換動作を行
う。その後、駆動モータを正回転させて給紙動作
を開始し、用紙Pがプラテン11へ送られてエン
ドスイツチSがオフ接点に切換わると用紙Pが適
正印字位置に位置するまでプラテン11を正回転
し、そして、エンドスイツチSがオン接点に切換
わるまで用紙Pに1行毎に印字を行う。また、用
紙Pへの印字が完了すると用紙Pを排出しホスト
コンピユータによる次の用紙Pの給紙指令の判断
が行われる。なお、給紙動作時に駆動モータが正
常に正回転してもエンドスイツチSがオフ接点に
切換わらない場合、すなわち、紙詰まりや用紙不
足などの場合は駆動モータを停止する。
Further, the control by the control means 80 provided in the printer main body 2 is shown in the flowchart of FIG. When the connection relationship (online-local) with the host computer is selected by the select switch, the switching operation is performed even if the drive motor is reversely rotated by a certain amount when the end switch S is in the on state. After that, the drive motor is rotated forward to start the paper feeding operation, and when the paper P is sent to the platen 11 and the end switch S is switched to the off contact, the platen 11 is rotated forward until the paper P is located at the proper printing position. Then, printing is performed line by line on the paper P until the end switch S is turned on. Further, when the printing on the paper P is completed, the paper P is ejected, and the host computer determines the feeding command for the next paper P. If the end switch S does not switch to the off contact even if the drive motor normally rotates forward during paper feeding operation, that is, if there is a paper jam or a shortage of paper, the drive motor is stopped.

なお、正常な印字動作時に対して給紙動作時は
各手段3,4,5,6を駆動する必要があるので
駆動モータに加わる負荷が大きくなるため、駆動
モータのパルス周期を落して回転させるように制
御手段80によつて制御するとよい。
In addition, since it is necessary to drive each means 3, 4, 5, and 6 during paper feeding operation compared to normal printing operation, the load applied to the drive motor increases, so the pulse cycle of the drive motor is rotated at a lower pulse cycle. It is preferable to control by the control means 80 as follows.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、伝達手段の逆回転に伝達手段
と給紙手段とを接続するとともにその逆回転中に
解除手段を初期状態にセツトし、次に、伝達手段
の正回転時に給紙手段の給紙ローラが連動回転し
て用紙をプリンタ本体に給紙し、かつ、伝達手段
の正回転と同時に初期状態にセツトされていた解
除手段の動作が開始し、この解除手段により動作
開始から一定のタイミング後に伝達手段と給紙手
段との接続を解除する。そのため、給紙完了後
は、給紙手段がフリー状態となり、用紙のプリン
タ本体への引き込みを許容し、単体の給紙装置で
異つた大きさの用紙をプリンタ本体へ確実に供給
できる。また、例えば給紙動作中に停電や紙詰ま
りで給紙動作が中断されても、その中断状態から
給紙動作すなわち伝達手段の逆回転により解除手
段を初期状態にセツトする動作を開始できるた
め、ただちに再起動することができる。
According to the present invention, the transmission means and the paper feeding means are connected when the transmission means rotates in the reverse direction, and the release means is set to the initial state during the reverse rotation, and then, when the transmission means rotates forward, the paper feeding means is connected. The paper feed roller rotates in conjunction to feed the paper into the printer body, and at the same time as the transmission means rotates forward, the release means that was set in the initial state starts operating, and this release means causes the release means to maintain a constant state from the start of operation. After the timing, the transmission means and paper feeding means are disconnected. Therefore, after paper feeding is completed, the paper feeding means becomes free, allowing the paper to be drawn into the printer main body, and it is possible to reliably feed different sizes of paper to the printer main body with a single paper feeding device. Furthermore, even if the paper feeding operation is interrupted due to a power outage or a paper jam, for example, the paper feeding operation, that is, the operation of setting the release means to the initial state by reverse rotation of the transmission means, can be started from the interrupted state. It can be restarted immediately.

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

図は本発明の装置の一実施例を示し、第1図は
給紙装置の斜視図、第2図はその断面図、第3図
は一部の側面図、第4図は動作状態の一部の側面
図、第5図は切換手段の分解状態の斜視図、第6
図は解除手段の分解状態の斜視図、第7図はプリ
ンタ本体の制御を示すフローチヤート図である。 1……給紙装置、2……プリンタ本体、3……
伝達手段、4……給紙手段、5……切換手段、6
……解除手段、39……給紙ローラ、80……制
御手段、P……用紙。
The figures show an embodiment of the apparatus of the present invention, in which Fig. 1 is a perspective view of the paper feeding device, Fig. 2 is a sectional view thereof, Fig. 3 is a partial side view, and Fig. 4 is an illustration of an operating state. Fig. 5 is a perspective view of the switching means in an exploded state; Fig. 6 is a side view of the switching means;
The figure is a perspective view of the release means in an exploded state, and FIG. 7 is a flowchart showing control of the printer main body. 1... Paper feeding device, 2... Printer body, 3...
Transmission means, 4...Paper feeding means, 5...Switching means, 6
...Release means, 39...Paper feed roller, 80...Control means, P...Paper.

Claims (1)

【特許請求の範囲】 1 給紙された用紙に印字するプリンタ本体から
正逆回転の駆動力を伝達する伝達手段と、 この伝達手段との選択的な接続時に伝達手段の
正回転に連動回転して上記用紙をプリンタ本体に
給紙するとともに逆回転には非連動とし、かつ、
非接続時には回転自在とする給紙ローラを有する
給紙手段と、 上記伝達手段の逆回転により伝達手段と上記給
紙手段とを接続させる切換手段と、 上記伝達手段の逆回転中に初期状態にセツトさ
れるとともに伝達手段の正回転と同時に動作が開
始され、この動作開始から一定のタイミング後に
伝達手段と上記給紙手段との接続を解除する解除
手段と を具備したことを特徴とするプリンタ用給紙装
置。 2 切換手段は伝達手段から逆回転駆動力の不感
帯を設けたことを特徴とする特許請求の範囲第1
項記載のプリンタ用給紙装置。 3 プリンタ本体は給紙時に印字時よりパルス周
期を落して駆動モータを逆回転および正回転制御
する制御手段を備えたことを特徴とする特許請求
の範囲第1項記載のプリンタ用給紙装置。
[Claims] 1. A transmission means for transmitting forward and reverse rotational driving force from the printer main body for printing on fed paper, and a transmission means that rotates in conjunction with the forward rotation of the transmission means when selectively connected to the transmission means. feeds the paper into the printer main body, and is not linked to reverse rotation, and
a paper feeding means having a paper feeding roller that is rotatable when the transmission means is not connected; a switching means for connecting the transmission means and the paper feeding means by reverse rotation of the transmission means; A printer characterized in that the printer is equipped with a release means that starts the operation at the same time as the transmission means rotates in the forward direction, and releases the connection between the transmission means and the paper feeding means after a certain timing from the start of the operation. Paper feed device. 2. Claim 1, characterized in that the switching means is provided with a dead zone for reverse rotation driving force from the transmission means.
Paper feeding device for the printer described in Section 1. 3. The printer paper feeding device according to claim 1, wherein the printer main body is provided with a control means for controlling reverse and forward rotation of the drive motor by lowering the pulse cycle during paper feeding than during printing.
JP13415484A 1984-06-29 1984-06-29 Paper feeder for printer Granted JPS6112366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13415484A JPS6112366A (en) 1984-06-29 1984-06-29 Paper feeder for printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13415484A JPS6112366A (en) 1984-06-29 1984-06-29 Paper feeder for printer

Publications (2)

Publication Number Publication Date
JPS6112366A JPS6112366A (en) 1986-01-20
JPH0430914B2 true JPH0430914B2 (en) 1992-05-25

Family

ID=15121729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13415484A Granted JPS6112366A (en) 1984-06-29 1984-06-29 Paper feeder for printer

Country Status (1)

Country Link
JP (1) JPS6112366A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178378A (en) * 1990-02-09 1993-01-12 Chinon Kabushiki Kaisha Paper feeder
JP4861871B2 (en) * 2007-03-26 2012-01-25 太平洋セメント株式会社 How to collect shellfish seeds
JP5375451B2 (en) * 2009-08-31 2013-12-25 ブラザー工業株式会社 Image recording device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097877A (en) * 1983-11-02 1985-05-31 Nippon Seimitsu Kogyo Kk Automatic paper-supplying device for printer
JPS6367477A (en) * 1986-09-08 1988-03-26 Sekisui Chem Co Ltd Liquid flow control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097877A (en) * 1983-11-02 1985-05-31 Nippon Seimitsu Kogyo Kk Automatic paper-supplying device for printer
JPS6367477A (en) * 1986-09-08 1988-03-26 Sekisui Chem Co Ltd Liquid flow control device

Also Published As

Publication number Publication date
JPS6112366A (en) 1986-01-20

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