JPS5939638A - Paper feed device - Google Patents
Paper feed deviceInfo
- Publication number
- JPS5939638A JPS5939638A JP57146805A JP14680582A JPS5939638A JP S5939638 A JPS5939638 A JP S5939638A JP 57146805 A JP57146805 A JP 57146805A JP 14680582 A JP14680582 A JP 14680582A JP S5939638 A JPS5939638 A JP S5939638A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- cassette
- bottom plate
- copying machine
- top cover
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
- B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、枚葉紙束を収納するカセットを複写機等に
挿着し、複写機等に設けた給紙手段によりカセット内の
枚葉紙を一枚ずつ給紙を行なう複写機等の給紙装置に関
する。DETAILED DESCRIPTION OF THE INVENTION This invention involves inserting a cassette for storing a bundle of sheets into a copying machine, etc., and feeding the sheets in the cassette one by one using a paper feeding means provided in the copying machine, etc. The present invention relates to a paper feeding device for copying machines and the like.
複写機の転写紙等の給紙装置としては、容器底部のある
支点に枢支され、枚葉紙束を載置する底板を有する給紙
カセットを複写機に挿着し、複写機本体に設けた底板押
上部材によって上記底板を上方に回動し、この上に載置
された枚葉紙束の上面を複写機に設けた給紙コロに圧接
させ、給紙信号に応じてカセット内の枚葉紙を上から一
枚ずつ給紙するようにした給紙装置が、操作が簡便なと
ころから広く採用されている。As a paper feeding device for transfer paper, etc. of a copying machine, a paper feeding cassette, which is pivoted on a fulcrum at the bottom of the container and has a bottom plate on which a stack of sheets is placed, is inserted into the copying machine and installed in the main body of the copying machine. The bottom plate is rotated upward by the bottom plate push-up member, and the top surface of the stack of sheets placed thereon is brought into pressure contact with a paper feed roller provided in the copying machine, and the sheets in the cassette are moved in response to a paper feed signal. Paper feeding devices that feed sheets one by one from the top are widely used because they are easy to operate.
従来、上記の給紙圧の印加は、一般に引張バネにより押
上部材を底板下面に押圧して行なっており、カセットの
複写機等本体への着脱の際は切換レバーの操作により抑
圧部材を上記引張バネの力に抗して非作動位置に変位さ
せ挿着後再びレバー操作により作動位置に戻すか、ある
いは給紙カセットの側面に設けたカムにより一時的に押
上部材を引張バネの力に抗（−て押下げ、所定の位置に
挿着した状態で再び引張バネの力により押上部材が底板
押上状態になるようにしている。そのため、カセットの
着脱には、かなりの操作力を必要とし、特に切換レバー
を使用する方式では手数が掛り操作性が劣る。又、給紙
圧はこの引張バネの荷重が紙と給紙コロの間に掛ること
によって生ずるが、この圧力はバネの変位及び用紙自重
によって変化するので、底板上の枚葉紙の量や紙サイズ
の大小により給紙圧が不安定になると云う欠点があった
。Conventionally, the above-mentioned paper feeding pressure was generally applied by pressing a push-up member against the bottom surface of the bottom plate using a tension spring, and when a cassette was attached to or detached from the main body of a copying machine, etc., the pressure member was pulled up by operating a switching lever. You can either move it to the non-operating position against the force of the spring and return it to the active position by operating the lever after inserting it, or you can temporarily move the push-up member against the force of the tension spring using a cam installed on the side of the paper feed cassette. When the cassette is inserted into a predetermined position, the push-up member is pushed up again by the force of the tension spring. Therefore, a considerable amount of operating force is required to attach and detach the cassette, and The method of using a switching lever is time-consuming and has poor operability.Furthermore, the paper feeding pressure is generated by the load of this tension spring being applied between the paper and the paper feeding roller, but this pressure is caused by the displacement of the spring and the weight of the paper itself. Therefore, there is a drawback that the paper feeding pressure becomes unstable depending on the amount of sheets on the bottom plate and the size of the paper.
ところで、従来一般に用紙の補給時にはその都度カセッ
トを複写機等本体から外して行なっており、又カセット
内に収納されている用紙と異る種類の用紙を手差しで使
用する場合は、このカセットの給紙圧を解除し、別の手
差し給紙台を使用する等、装置が複雑になるのみならず
、操作性が良くなかった。これを改−善する目的で、給
紙カセットを複写機本体に挿着した状態で後部をはね上
げて開閉可能な上蓋をカセットに設け、その開閉動作と
連動させて底板を下降、上昇させ、後部の開いた上蓋の
下から、隙間の出来た給紙コロと用紙束上面又は底板上
面との間に用紙を補給又は異種の用紙を手差しすること
が可能な給紙装置が例えば実願昭５３−１５５９７５号
により提案されている。By the way, in the past, it was common practice to remove the cassette from the main body of the copying machine each time to replenish paper, and when manually feeding paper of a different type than the one stored in the cassette, Not only was the device complicated, as it required releasing the paper pressure and using a separate manual paper feed tray, but it was also not easy to operate. In order to improve this, the cassette is equipped with a top cover that can be opened and closed by flipping up the rear part when the paper cassette is inserted into the main body of the copying machine. For example, there is a paper feed device that can replenish paper or manually feed different types of paper between a paper feed roller with a gap and the top surface of a stack of sheets or the top surface of a bottom plate from under the open top lid. It is proposed by No. 155975.
しかし、この装置においても、給紙圧の印加には引張バ
ネが用いられているので、リンク機構を介して倍力して
はいるが、上蓋の開閉操作にかなりの操作力を必要とし
、又前述の如く用紙の量の多少、用紙サイズの大小によ
る給紙圧の変動が避けられなかった。However, even in this device, a tension spring is used to apply paper feeding pressure, so although the force is doubled through a link mechanism, a considerable amount of operating force is required to open and close the top cover. As mentioned above, fluctuations in paper feeding pressure are unavoidable depending on the amount of paper and the paper size.
この発明は、従来の上蓋の開閉に連動してカセット底板
が下降、上昇する給紙装置の上述の問題点を解決した、
操作性が良く、給紙圧の安定した、カセットを複写機に
挿着した状態での用紙の補給及び手差し給紙の容易な複
写機等の給紙装置を提供することを目的とする。This invention solves the above-mentioned problem of the conventional paper feed device in which the cassette bottom plate lowers and rises in conjunction with opening and closing of the top cover.
To provide a paper feeding device for a copying machine, etc., which has good operability, stable paper feeding pressure, and facilitates paper replenishment and manual paper feeding when a cassette is inserted into the copying machine.
この目的は、本発明にしたがい、カセットの上蓋の開閉
に連動して底板が下降、上昇する給紙装置において、底
板押上部材を駆動するために複写機等にモータと、その
動力を上記押上部材に伝達する接断可能な伝動手段を設
け、上記カセットに上蓋の開閉操作に連動して上記の伝
動手段を断続、接続する部材を設けることにより達成さ
れる。According to the present invention, in a paper feeding device in which a bottom plate lowers and rises in conjunction with the opening and closing of the top cover of a cassette, a motor is installed in a copying machine or the like to drive a bottom plate push-up member, and the power is transferred to the push-up member. This is achieved by providing a transmission means that can be disconnected and connected to the cassette, and providing a member on the cassette that connects and disconnects the transmission means in conjunction with the opening/closing operation of the top cover.
以下、本発明を、図面に示す実施例にもとすいて詳細に
説明する。Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.
第１図及び第２図に示す実施例において、枚葉・紙束を
その上に載置する底板３がカセット１の底部のある点（
図の範囲外の点）に枢支されている。In the embodiment shown in FIGS. 1 and 2, the bottom plate 3 on which the sheets/paper bundles are placed is located at a certain point at the bottom of the cassette 1 (
(a point outside the range of the figure).
カセソ）ｌには２点を支点として後部をはね上げて開閉
出来る上蓋２が設けられている。上蓋２の前端の一方の
側部には下方にのびた突片２″が設けられている。カセ
ット側板に植設された２本のガイドピン７に係合する２
つの長孔６′を有するスライダ６が移動可能に設けられ
ており、上蓋２を矢印Ａの方向に閉じた状態で突片２“
の先端によりスライダ６は矢印Ｂ方向に押されて長孔６
′の後端がビン７に接する位置にきて、上蓋２の後端を
持上げて開くと、突片２″はスライダ６から離脱しスラ
イダ６は右方へ移動可能となる。上記カセットｌを複写
機本体に挿着した図に示す状態で上蓋２は操作者の手に
より開閉可能となっている。なお、符号５は底板上に載
置する枚葉紙束の側面を当接 ゛させて揃えるガイド
である。又カセットの底面及び前面板４には後述のりフ
タ−１５が通過しうる逃げ孔が設けられている。The cassette case) l is provided with an upper lid 2 that can be opened and closed by flipping up the rear part using two points as fulcrums. A protruding piece 2'' extending downward is provided on one side of the front end of the upper lid 2.
A slider 6 having two elongated holes 6' is movably provided, and when the top cover 2 is closed in the direction of arrow A, the protrusion 2''
The slider 6 is pushed in the direction of arrow B by the tip of the elongated hole 6.
When the rear end of the upper lid 2 comes into contact with the bottle 7 and the rear end of the upper lid 2 is lifted and opened, the protruding piece 2'' separates from the slider 6 and the slider 6 can move to the right. The top cover 2 can be opened and closed by the operator's hand when it is inserted into the main body of the copying machine as shown in the figure.The top cover 2 is indicated by the reference numeral 5 when the side of the stack of sheets placed on the bottom plate is brought into contact with the top cover 2. This is a guide for aligning the cassettes.Escape holes are provided in the bottom and front plate 4 of the cassette through which a glue lid 15 (described later) can pass.
一方、複写機本体には、挿着されたカセッ）１の前面４
の直前の位置に、図示せぬ一方の側板を支点とし、第２
図に示す方の側板１９に設けた長孔１８内を自由に移動
し、かつ自身の軸心のまわりに回転−自在な揺動軸１２
が揺動自在に設けられ、側板１９を貫通した端部と側板
１９に植設されたスタンド１６との間には引張りスプリ
ング１７が張設され、軸１２は常時長孔１８の右端に当
接する方向に付勢されている。揺動軸１２にはカセット
底板３を押上げることのできる位置にＬ字形断面のりフ
タ−１５が固定して設けられ、カセット側板に取付けら
れたスライダー６の前端に対向する位置にコロ１４がそ
の両側に軸に装着されたＥリング２３に挾まれて軸方向
に位置決めされ回転自在に設けられている。On the other hand, the front side 4 of the inserted cassette 1 is placed in the main body of the copying machine.
With one side plate (not shown) as a fulcrum, place the second
A swing shaft 12 that moves freely within a long hole 18 provided in the side plate 19 shown in the figure and rotates around its own axis.
is swingably provided, a tension spring 17 is tensioned between the end passing through the side plate 19 and the stand 16 planted in the side plate 19, and the shaft 12 is always in contact with the right end of the elongated hole 18. biased in the direction. An L-shaped cross-section glue lid 15 is fixedly provided on the swing shaft 12 at a position where the cassette bottom plate 3 can be pushed up, and a roller 14 is installed at a position facing the front end of the slider 6 attached to the cassette side plate. It is sandwiched between E-rings 23 attached to the shaft on both sides, positioned in the axial direction, and rotatably provided.
なおコロ１４は軸１２に固定されていても差支えない。Note that the rollers 14 may be fixed to the shaft 12.
側板１９の外側の軸端付近には、側板１９に取付けられ
た底板駆動モータ１０により駆動されるギヤｉｉと接断
可能に噛合うセクターギヤ１３が固定すれている。A sector gear 13 is fixed near the outer shaft end of the side plate 19 and engages with a gear ii driven by a bottom plate drive motor 10 attached to the side plate 19 in a disconnectable manner.
複写機に挿着されたカセット３の前端付近の上方には給
紙コロ２０が軸２１′を支点に回動自在に設けられたア
ームに軸支されており、軸２１′に設けられた分離コロ
対の一方のコロ２１と共に矢印の方向に回転可能となっ
ている。コロ２１には用紙通路を挾んで分離コロ対の他
方のコロ２２が圧接している〇コロ２２は常に停止又は
戻し方向に回転しており、用紙が複数枚重送されてきた
場合、用紙同志の摩擦係数と用１紙とコロ２１ 、２２
との摩擦係数の差を利用して、コロ２１に接する一枚の
みを給送するようになっている。Above the front end of the cassette 3 inserted into the copying machine, a paper feed roller 20 is pivotally supported by an arm rotatably provided with a shaft 21' as a fulcrum. It is rotatable in the direction of the arrow together with one roller 21 of the roller pair. The other roller 22 of the pair of separation rollers is in pressure contact with the roller 21, sandwiching the paper path. The roller 22 is always rotating in the stop or return direction, and when multiple sheets of paper are fed in parallel, Friction coefficient of 1 paper and roller 21, 22
Only one sheet in contact with the roller 21 is fed by utilizing the difference in the coefficient of friction between the roller 21 and the roller 21.
前述のギヤ１１とセクターギヤ１３の噛合いについて更
に詳しく説明すると、第１図、第２図に示す如く、複写
機本体に挿着されたカ七ツ）ｌの上蓋２が閉じられその
前端の突片２′によりスライダ６が前方（図の左方）に
押されてその長孔６′の右端がガイドピン７に当接して
いる状態ではスライダ６の前端がコロ１４を左方に押し
、揺動軸１２は側板１９の長孔１８の左端に当接した位
置を占める０この位置でセクターギヤ１３はギヤ１１と
噛合う。To explain in more detail the engagement between the gear 11 and the sector gear 13 described above, as shown in FIGS. When the slider 6 is pushed forward (to the left in the figure) by the protruding piece 2' and the right end of the elongated hole 6' is in contact with the guide pin 7, the front end of the slider 6 pushes the roller 14 to the left. The swing shaft 12 occupies a position in contact with the left end of the elongated hole 18 of the side plate 19. In this position, the sector gear 13 meshes with the gear 11.
カセツ）１の上蓋２の後端をはね上げて開くと、突片ｆ
はスライダ６Ｑ後端から離れ、引張りスプリング１７の
力で揺動軸１２は長孔１８の右端に当接する位置に移動
し、セクターギヤ１３とギヤ１１の噛合が外れるように
なっている。When you flip up the rear end of the top cover 2 of cassette) 1 and open it, you will see a protrusion f.
is separated from the rear end of the slider 6Q, and the force of the tension spring 17 moves the swing shaft 12 to a position where it abuts the right end of the elongated hole 18, so that the sector gear 13 and the gear 11 are disengaged.
この装置は以上の如く構成されているので、カセットを
挿着しない状態では引張りバネ１７により揺動軸は長孔
１８の右端に当接してセクターギヤ１３とギヤ１１の噛
合は外れており、リフター１５は自重によりカセットの
底面に相当する位置よりも下に降下している。したがっ
てカセットの着脱に当ってはりフタ−の降下のために他
のレバー等を操作する必要はなく、カセットを所定の位
置迄挿入してセットすれば自動的にセクターギヤ１３と
ギヤ１１とが噛合う。Since this device is constructed as described above, when the cassette is not inserted, the swing shaft is brought into contact with the right end of the elongated hole 18 by the tension spring 17, and the sector gear 13 and the gear 11 are disengaged, and the lifter 15 has descended below the position corresponding to the bottom of the cassette due to its own weight. Therefore, when attaching or detaching the cassette, there is no need to operate other levers or the like to lower the beam cover, and once the cassette is inserted and set to the specified position, the sector gear 13 and gear 11 will automatically engage. Fit.
複写機のメインスイッチを入れると駆動モータｌＯが回
転し、その出力軸に設けられたピニオンギヤによりギヤ
１１は矢印りの方向に回転し、これと噛合っているセク
ターギヤ１３は矢印Ｅの方向に回動し、軸１２を介して
リフグー１５を第１図中に実線で示す位置から矢印Ｆの
方向に回動し、用紙束を載置した底板３を矢印Ｇの方向
に上昇させ、用紙束の最上位紙の上面が給紙コロ２０に
当接し、用紙束上面（あるいは給紙コロ）が所定の高さ
に達したことが図示せぬセンサーにより検知されると駆
動モータｌＯは停止する。この状態で給紙コロは ・自
重で用紙東上面を抑−圧し所定の給紙圧が得られ給紙可
能となり、コピー信号が出る毎に給紙コロ２０及び分離
コロ２１が間けつ的に回転し、最上位紙から一枚ずつ給
紙さ扛る。底板３上に載置されている用紙が送り出され
るに従い用紙東上面が下降し、上記センサーより外れる
と駆動モータ１０は再び回転し、用紙東上面が所定の位
置に達する迄底板３を押上げて停止する。これを繰返し
て常に一定の給紙圧を維持して給紙を行ない、底板３上
の用紙がなくなると、図示しないペーパーエンドセンサ
ーによりペーパーエンドが検知され、機械が停止する。When the main switch of the copying machine is turned on, the drive motor IO rotates, and the pinion gear provided on its output shaft rotates the gear 11 in the direction of the arrow, and the sector gear 13 meshing with this rotates in the direction of the arrow E. 1, the lift goo 15 is rotated via the shaft 12 in the direction of arrow F from the position shown by the solid line in FIG. When a sensor (not shown) detects that the top surface of the top sheet of paper contacts the paper feed roller 20 and that the top surface of the stack of sheets (or the paper feed roller) has reached a predetermined height, the drive motor IO stops. In this state, the paper feed roller presses the east upper surface of the paper with its own weight to obtain a predetermined paper feed pressure and can feed paper, and the paper feed roller 20 and separation roller 21 rotate intermittently every time a copy signal is output. Then, feed the paper one by one starting from the topmost paper. As the paper placed on the bottom plate 3 is fed out, the east upper surface of the paper descends, and when it comes off the sensor, the drive motor 10 rotates again and pushes the bottom plate 3 up until the upper east surface of the paper reaches a predetermined position. Stop. This is repeated to feed paper while maintaining a constant paper feeding pressure. When the paper on the bottom plate 3 runs out, a paper end sensor (not shown) detects the paper end and the machine stops.
そこで、用紙の補給が行なわれるが、この装置ではカセ
ットを複写機から引抜かなくても補給が可能である。カ
セットｌを複写機本体に挿着した状態で上蓋２の前端２
を中心として後部を跳ね上げて開けば、その前端の突片
２′はカセット側板のガイドピン７に長孔Ｃを嵌合させ
て取付けられているスライダー６の後端から離脱し、ス
ライダー６によりコロ１４を介して左方に押圧されてい
た揺動軸１２はスプリング１７により側板の長孔１８の
右端に接する位置に変位する。これにより、セクターギ
ヤ１３とギヤ１１の噛合は外れリフター１５は自重によ
り底板３と一緒に下降し、給紙コロ２０と底板３の上面
との間が開き用紙の補給が可能となる。Therefore, paper is replenished, and with this device, it is possible to replenish the paper without having to pull out the cassette from the copying machine. With the cassette l inserted into the copying machine main body, the front end 2 of the top cover 2
When the rear part is flipped up and opened, the protruding piece 2' at the front end of the slider 6 is detached from the rear end of the slider 6, which is attached by fitting the elongated hole C into the guide pin 7 of the cassette side plate. The swing shaft 12, which has been pressed to the left via the rollers 14, is displaced by the spring 17 to a position where it contacts the right end of the elongated hole 18 in the side plate. As a result, the sector gear 13 and the gear 11 are disengaged, and the lifter 15 descends together with the bottom plate 3 due to its own weight, and the gap between the paper feed roller 20 and the top surface of the bottom plate 3 opens, allowing paper to be supplied.
用紙の補給は勿論カセットｌを引出して行なうことも可
能である。カセットｌを引出すとスライダー６がコロ１
４から離れ、揺動軸１２はスプリング１７により右方向
に移動しセクターギヤ１３とギャ１１とが外れることは
前述の通りである。It is of course possible to replenish paper by pulling out the cassette l. When cassette L is pulled out, slider 6 moves to roller 1.
4, the swing shaft 12 is moved to the right by the spring 17, and the sector gear 13 and the gear 11 are disengaged, as described above.
又、カセットｌに収容されている用紙と異る用紙に複写
したい場合にもカセッ）ｌの上蓋２を開くことにより、
底板３上の用紙束と給紙コロ２ｏとの間に隙間が出来る
ので所望の用紙を所要の枚数だけ通常の用紙束の上に手
挿しすることが可能である。Also, if you want to copy on paper different from the paper stored in the cassette l, by opening the top cover 2 of the cassette l,
Since there is a gap between the paper stack on the bottom plate 3 and the paper feed roller 2o, it is possible to manually insert the desired number of sheets onto the normal paper stack.
又、駆動モータｌＯは上述の如く、機械本体がオンされ
ている時常時回転しており用紙高さセンサーが検知した
時のみ停止するように制御するほか、カセット上蓋の開
閉を検知し、上蓋が閉じている時（閉じ掛っている時を
含めてもよい）で用紙高さセンタにより検知されていな
い時にのみモータを回転するように制御してもよい。In addition, as mentioned above, the drive motor IO is controlled so that it always rotates when the main body of the machine is turned on and stops only when the paper height sensor detects it. The motor may be controlled to rotate only when the paper height center is not detected when the paper height center is closed (or when the paper height is almost closed).
以上の如く、本発明によれば給紙カセットを引出すこと
なく簡単に用紙を補給することができ、又別に手差し給
紙手段を設けなくても任意の用紙の手差しが可能となり
操作性が向上するほか、常に安定した給紙圧が得られる
。As described above, according to the present invention, it is possible to easily replenish paper without pulling out the paper feed cassette, and it is also possible to manually feed any paper without providing a separate manual paper feed means, improving operability. In addition, stable paper feeding pressure can be obtained at all times.
第１図は本発明の実施例を示す縦断面図、第２図はその
一部を省略して示す平面図である。
ｌ・・・給紙カセット ２°°°上蓋３・・・底板
６・・・スライダ（伝動手段接断部材）１０・・・モー
タ
１１．１２，１３・・・伝動手段 １５・・・底板押
上部材２０・・・給紙コロ（給紙手段）FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a partially omitted plan view. l...Paper feed cassette 2°°°Top lid 3...Bottom plate 6...Slider (transmission means disconnection member) 10...Motor 11.12, 13...Transmission means 15...Bottom plate push-up Member 20...Paper feeding roller (paper feeding means)
Claims (1)
板と、複写機等に挿着した状態で開閉可能な上蓋を有す
る給紙カセットを複写機等に挿着し、複写機等に設けた
底板押上部利によって上記の底板を上方に回動し、この
上に載置された枚葉紙束の上面を複写機等に設けられた
給紙手段に圧接させてカセット内の枚葉紙を上から一枚
ずつ給紙し、上記の上蓋の開閉に連動して上記の底板を
下降、上昇させるようにした複写機等の給紙装置におい
て、上記の底板押上部利を駆動するためのモータと、そ
の動力を上記底板押上部材に伝達する接断可能な伝動手
段を複写機等に設け、上記カセットに」二記」二蓋の開
閉操作に連動して上記の伝動手段を接断する熱料を設け
たことを特徴とする給紙装置。A paper feed cassette is pivotally supported on a fulcrum at the bottom of the container and has a bottom plate on which a stack of sheets is placed, and a top lid that can be opened and closed when inserted into a copying machine, etc., and is inserted into the copying machine. The above-mentioned bottom plate is rotated upward by the bottom plate push-up mechanism provided on the cassette, and the top surface of the stack of sheets placed thereon is brought into pressure contact with the paper feeding means provided on the copying machine, etc., to feed the paper in the cassette. In a paper feeding device such as a copying machine that feeds sheets one by one from the top and lowers and raises the bottom plate in conjunction with the opening and closing of the top cover, the bottom plate pusher is driven. A copying machine or the like is provided with a motor for the purpose of transferring the motor and a transmission means that can be disconnected and transmitted to the bottom plate push-up member, and the transmission means is connected to the cassette in conjunction with the opening/closing operation of the lid. A paper feeding device characterized by being provided with a heating material that connects and disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57146805A JPS5939638A (en) | 1982-08-26 | 1982-08-26 | Paper feed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57146805A JPS5939638A (en) | 1982-08-26 | 1982-08-26 | Paper feed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5939638A true JPS5939638A (en) | 1984-03-05 |
Family
ID=15415924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57146805A Pending JPS5939638A (en) | 1982-08-26 | 1982-08-26 | Paper feed device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939638A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953326A (en) * | 1982-09-17 | 1984-03-28 | Ricoh Co Ltd | Paper feeder for copier of the like |
| JPS6195728U (en) * | 1984-11-29 | 1986-06-20 | ||
| JPS6259625U (en) * | 1985-10-03 | 1987-04-13 | ||
| US4763891A (en) * | 1984-10-30 | 1988-08-16 | Ricoh Company, Ltd. | Sheet feed device for electronic copier, printer, etc. |
| US4872660A (en) * | 1985-02-12 | 1989-10-10 | Ricoh Company, Ltd. | Sheet feed device for recording apparatus |
| US5078380A (en) * | 1989-08-30 | 1992-01-07 | Kabushiki Kaisha Toshiba | Apparatus for feeding sheet material |
| US6073924A (en) * | 1998-03-19 | 2000-06-13 | Umax Data Systems | Paper-loading mechanism for a document duplicating machine |
| US7272340B2 (en) | 2004-11-27 | 2007-09-18 | Samsung Electronics Co., Ltd. | Image forming apparatus |
| KR100775971B1 (en) * | 2001-10-27 | 2007-11-16 | 한국후지제록스 주식회사 | Automatic Up/Down Device of Bottom Plate for Paper Cassette |
| US8020853B2 (en) * | 2007-02-27 | 2011-09-20 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus and sheet feeding apparatus |
-
1982
- 1982-08-26 JP JP57146805A patent/JPS5939638A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953326A (en) * | 1982-09-17 | 1984-03-28 | Ricoh Co Ltd | Paper feeder for copier of the like |
| US4763891A (en) * | 1984-10-30 | 1988-08-16 | Ricoh Company, Ltd. | Sheet feed device for electronic copier, printer, etc. |
| JPS6195728U (en) * | 1984-11-29 | 1986-06-20 | ||
| US4872660A (en) * | 1985-02-12 | 1989-10-10 | Ricoh Company, Ltd. | Sheet feed device for recording apparatus |
| JPS6259625U (en) * | 1985-10-03 | 1987-04-13 | ||
| JPH0415721Y2 (en) * | 1985-10-03 | 1992-04-08 | ||
| US5078380A (en) * | 1989-08-30 | 1992-01-07 | Kabushiki Kaisha Toshiba | Apparatus for feeding sheet material |
| US6073924A (en) * | 1998-03-19 | 2000-06-13 | Umax Data Systems | Paper-loading mechanism for a document duplicating machine |
| KR100775971B1 (en) * | 2001-10-27 | 2007-11-16 | 한국후지제록스 주식회사 | Automatic Up/Down Device of Bottom Plate for Paper Cassette |
| US7272340B2 (en) | 2004-11-27 | 2007-09-18 | Samsung Electronics Co., Ltd. | Image forming apparatus |
| US8020853B2 (en) * | 2007-02-27 | 2011-09-20 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus and sheet feeding apparatus |
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