JPS6127298B2 - - Google Patents

Info

Publication number
JPS6127298B2
JPS6127298B2 JP57171447A JP17144782A JPS6127298B2 JP S6127298 B2 JPS6127298 B2 JP S6127298B2 JP 57171447 A JP57171447 A JP 57171447A JP 17144782 A JP17144782 A JP 17144782A JP S6127298 B2 JPS6127298 B2 JP S6127298B2
Authority
JP
Japan
Prior art keywords
paper
paper feed
cassette
copy
roller
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
Application number
JP57171447A
Other languages
Japanese (ja)
Other versions
JPS58111957A (en
Inventor
Toshiharu Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 by Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP57171447A priority Critical patent/JPS58111957A/en
Publication of JPS58111957A publication Critical patent/JPS58111957A/en
Publication of JPS6127298B2 publication Critical patent/JPS6127298B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G03G15/6514—Manual supply devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00379—Copy medium holder
    • G03G2215/00392—Manual input tray
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/0054—Detachable element of feed path

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Manual Feeding Of Sheets (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

【発明の詳細な説明】 本発明は電子写真複写機における給紙装置、詳
しくは、同一サイズの複写紙を多数枚積み重ねて
一枚づつ自動的に給紙する自動給紙機構と、使用
者が複写紙を一枚づつ給紙部に挿入する手差し給
紙機構とを兼ね備えた給紙装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device for an electrophotographic copying machine, and more particularly, to an automatic paper feeding mechanism that stacks many sheets of copy paper of the same size and automatically feeds them one by one. The present invention relates to a paper feeding device that also has a manual paper feeding mechanism for inserting copy sheets one by one into a paper feeding section.

近年、電子写真複写機における給紙装置として
は、所定サイズの複写紙を多数枚収納した自動給
紙カセツトを複写機本体の給紙部に選択的に着脱
可能としたカセツト式自動給紙機構が採用されて
いる。そして、このもので手差し給紙をも可能と
するためには、給紙部に別途専用の手差し給紙用
ガイド板を設けていた。しかし、これでは自動給
紙と手差し給紙とで別体の給紙ローラを設置しな
ければならず、構造的に複雑であるし、使用頻度
の少ない手差し給紙のために専用部材を設けるこ
とはスペース効率等の点でも好ましくはない。 In recent years, as a paper feeding device for electrophotographic copying machines, a cassette-type automatic paper feeding mechanism, in which an automatic paper feeding cassette containing a large number of sheets of copy paper of a predetermined size can be selectively attached to and removed from the paper feeding section of the main body of the copying machine, has become popular. It has been adopted. In order to enable manual paper feeding with this device, a dedicated manual paper feeding guide plate was separately provided in the paper feeding section. However, this requires separate paper feed rollers to be installed for automatic paper feeding and manual paper feeding, which is structurally complex, and requires the provision of a dedicated member for manual paper feeding, which is rarely used. is not preferable in terms of space efficiency and the like.

そこで、実開昭51―19751号公報に記載のよう
に、給紙ローラを兼用するものが提案されている
が、手差し給紙用ガイド板等の専用部材を常設す
る点において上記欠点は解決されていない。 Therefore, as described in Japanese Utility Model Application Publication No. 51-19751, a device that also serves as a paper feed roller has been proposed, but the above-mentioned drawbacks have not been solved in that a dedicated member such as a guide plate for manual paper feed is permanently installed. Not yet.

そこで、本発明の目的は、手差し給紙にもカセ
ツト方式を採用して自動給紙カセツトと選択的に
着脱可能とし、給紙ローラや該給紙ローラへの圧
着手段等を共用として、構成の簡略化，スペース
効率の向上を達成するようにした電子写真複写機
における給紙装置を提供することにある。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to adopt a cassette system for manual paper feeding so that it can be selectively attached to and detached from the automatic paper feeding cassette, and to share the paper feeding roller and pressure bonding means for the paper feeding roller. An object of the present invention is to provide a paper feeding device for an electrophotographic copying machine that achieves simplification and improved space efficiency.

以下、本発明を一実施例である添付図面に従つ
て説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

本発明に係る給紙装置は第１図に示すように
に、概略、給紙ローラ１と、ロツクレバー５と、
圧着手段１０と、圧着解除レバー２０と、自動給
紙カセツト３２または手差し給紙カセツト４３を
装置位置に係止するロツク板２１とから構成され
ている。 As shown in FIG. 1, the paper feeding device according to the present invention generally includes a paper feeding roller 1, a lock lever 5,
It consists of a crimping means 10, a crimping release lever 20, and a locking plate 21 for locking the automatic paper feed cassette 32 or the manual paper feed cassette 43 in the device position.

上記給紙ローラ１は図示しないフレームに回転
自在に取付けた支軸２上にスプリングクラツチＣ
を介して適宜間隔で複数個設けたもので、支軸２
とともにメインモータにより一定のタイミングで
反時計回り方向に回転駆動可能である。支軸２は
１回の給紙で１回転して停止し、給紙ローラ１は
支軸２が停止後もスプリングクラツチＣにより回
転可能に設けられる。 The paper feed roller 1 is attached to a spring clutch C on a support shaft 2 which is rotatably attached to a frame (not shown).
A plurality of spindles are provided at appropriate intervals through the support shaft 2.
At the same time, it can be rotated counterclockwise at a constant timing by the main motor. The support shaft 2 rotates once for one paper feed and then stops, and the paper feed roller 1 is provided so as to be rotatable by a spring clutch C even after the support shaft 2 stops.

上記ロツクレバー５は支軸２の一端に回動自在
に装着したもので、カセツト３２の側板３３に形
成した切欠き段部３４に当接可能なピン６を有
し、図示しないフレームに固定したブラケツト４
に一端を止着したコイルばね９の他端を突片７に
止着することにより、支軸２を支点として時計回
り方向に付勢され、該付勢力は下端の切欠き８が
以下に説明する圧着手段１０のピン１７に係合す
ることにより規制されている。 The lock lever 5 is rotatably mounted on one end of the support shaft 2, and has a pin 6 that can come into contact with a stepped notch 34 formed in the side plate 33 of the cassette 32, and is attached to a bracket fixed to a frame (not shown). 4
By fixing one end of the coil spring 9 to the projecting piece 7, the coil spring 9 is biased clockwise about the support shaft 2, and this biasing force is transmitted by the notch 8 at the lower end as described below. It is regulated by engaging with the pin 17 of the crimping means 10.

上記圧着手段１０はフレームに固定したブラケ
ツト１１，１１に支軸１２を回転自在に装着し、
該支軸１２の中央に先端にピン１４を介して取付
けた圧着ローラ１５を有するアーム１３の後端を
固着するとともに、一端に固着したレバー１６の
先端に上記ロツクレバー５の切欠き８と係合可能
なピン１７を設け、かつ他端に固着したレバー１
８に圧着用コイルばね１９を止着し、該コイルば
ね１９により支軸１２を支点として反時計回り方
向に付勢されている。また、上記レバー１６の上
方に起立した一側片には圧着解除レバー２０が固
定されている。 The crimping means 10 has a support shaft 12 rotatably attached to brackets 11, 11 fixed to the frame,
The rear end of an arm 13 having a pressure roller 15 attached to the tip via a pin 14 is fixed to the center of the support shaft 12, and the tip of a lever 16 fixed to one end is engaged with the notch 8 of the lock lever 5. Lever 1 provided with a possible pin 17 and fixed to the other end
A crimping coil spring 19 is fixed to 8, and the coil spring 19 urges the support shaft 12 counterclockwise around the support shaft 12 as a fulcrum. Further, a pressure release lever 20 is fixed to one side piece that stands above the lever 16.

上記ロツク板２１はカセツト３２の底板３５に
形成した開口３６の縁部（第４図参照）に係合可
能なロツク爪２２，２２と、上記圧着ローラ１５
の支持ピン１４が当接可能な突片２３を形成した
もので、支軸２４を支点として回動自在に装着さ
れるとともにトーシヨンばね２５にて上方に付勢
され、該付勢力は突片２３が上記ピン１４に当接
することにより規制されている。 The lock plate 21 has lock pawls 22, 22 that can engage with the edges of an opening 36 formed in the bottom plate 35 of the cassette 32 (see FIG. 4), and the pressure roller 15.
The support pin 14 is formed with a projecting piece 23 that can come into contact with it, and is rotatably mounted around a support shaft 24 and is urged upward by a torsion spring 25, and the urging force is applied to the projecting piece 23. is regulated by coming into contact with the pin 14.

また、第４図に示すように、給紙装置の前方に
は給紙された複写紙４２を図示しない転写部に搬
送する一対のタイミングローラ２６、ガイド板２
７，２８が設置され、ガイド板２８の一部は下方
に折り曲げてカセツト３２の前面に当接可能なス
トツパ２９とされ、かつガイド板２８の裏面に設
けた支軸３０にはカセツト３２の前面を押圧する
トーシヨンばね３１が取付けてある。 In addition, as shown in FIG. 4, in front of the paper feeding device are a pair of timing rollers 26 and a guide plate 2 for conveying the fed copy paper 42 to a transfer section (not shown).
7 and 28 are installed, a part of the guide plate 28 is bent downward to form a stopper 29 that can come into contact with the front surface of the cassette 32, and a support shaft 30 provided on the back surface of the guide plate 28 has a A torsion spring 31 is attached to press the .

ここで、まず自動給紙カセツト３２を説明する
と、基本的な構成は従来周知のものであり、底板
３５と重なるように台板３７（第４図参照）が軸
３８を支点として回動自在に装着され、かつ複写
紙４２の先端位置を規制するとともに二重送りを
防止する分離爪３９が設置されている。側板３３
と複写紙４２のサイド押え板４０との間に設けた
空隙部４１（第２図参照）は、以下に説明する手
差し給紙用のカム３の回転を妨げないためのもの
である。 First, the automatic paper feed cassette 32 will be explained. Its basic configuration is conventionally known. A base plate 37 (see FIG. 4) is rotatable about a shaft 38 so as to overlap the bottom plate 35. A separating claw 39 is installed to regulate the position of the leading edge of the copy paper 42 and prevent double feeding. Side plate 33
A gap 41 (see FIG. 2) provided between the side press plate 40 of the copy paper 42 and the copy paper 42 is provided so as not to impede the rotation of the manual paper feeding cam 3, which will be described below.

以下の構成において、複写紙４２を収容したカ
セツト３２は複写機本体の側部から単に挿入する
ことにより、給紙部にロツクした状態でかつ複写
紙４２が圧着ローラ１５にて持ち上げられて給紙
ローラ１に圧着した給紙状態とされる。 In the following configuration, the cassette 32 containing the copy paper 42 is simply inserted from the side of the copying machine main body, and the copy paper 42 is lifted by the pressure roller 15 while being locked in the paper feed section. The paper is in a fed state in which it is pressed against the roller 1.

すなわち、カセツト３２の挿入によつて側板３
３の切欠き段部３４がロツクレバー５のピン６に
当接し、ロツクレバー５が反時計回り方向に若干
回動する（第３図参照）。この回動に基づいて圧
着手段１０のピン１７がロツクレバー５の切欠き
８との係合を解除され、圧着用コイルばね１９に
より支軸１２とともにアーム１３が上方に回動
し、圧着ローラ１５がカセツト３２の開口３６を
通じて台板３７の先端を持ち上げ、複写紙４２の
先端部が給紙ローラ１に圧着される。 That is, by inserting the cassette 32, the side plate 3
The notch step 34 of No. 3 comes into contact with the pin 6 of the lock lever 5, and the lock lever 5 rotates slightly counterclockwise (see FIG. 3). Based on this rotation, the pin 17 of the crimping means 10 is disengaged from the notch 8 of the lock lever 5, the arm 13 is rotated upward together with the support shaft 12 by the crimping coil spring 19, and the crimping roller 15 is rotated upward. The leading end of the base plate 37 is lifted up through the opening 36 of the cassette 32, and the leading end of the copy paper 42 is pressed against the paper feed roller 1.

同時に、圧着ローラ１５のピン１４に突片２３
が当接するロツク板２１が上方に若干回動し、ロ
ツク爪２２がカセツト３２の開口３６の縁部に係
合し、カセツト３２自体を引き戻せないようにロ
ツクする。 At the same time, the protrusion 23 is attached to the pin 14 of the pressure roller 15.
The locking plate 21 which is in contact with the cassette 32 rotates slightly upward, and the locking pawl 22 engages with the edge of the opening 36 of the cassette 32, thereby locking the cassette 32 itself so that it cannot be pulled back.

なお、カセツト３２は完全に挿入しおえる直前
に前面がトーシヨンばね３１に当接し、この反撥
力に抗してストツパ２９に当接するまで押し込ま
れる。このように、トーシヨンばね３１を設ける
ことにより挿入終了の感触を得ることができ、挿
入不完全の場合にはカセツト３２が押し戻される
ので不完全な状態で装着されるのを防止し得る。 The front surface of the cassette 32 comes into contact with the torsion spring 31 just before it is completely re-inserted, and the cassette 32 is pushed in against the repulsive force until it comes into contact with the stopper 29. In this way, by providing the torsion spring 31, it is possible to feel that the insertion is complete, and if the insertion is incomplete, the cassette 32 is pushed back, thereby preventing the cassette 32 from being inserted in an incomplete state.

給紙は以上のようにカセツト３２を装着した状
態において、給紙信号により支軸２のクラツチ
（図示せず）が投入されて給紙ローラ１が反時計
回り方向に回転駆動され、該ローラ１に圧着する
複写紙４２の最上層の１枚がガイド板２７，２８
にガイドされつつ給紙され、つづいて一対のタイ
ミングローラ２６にて図示しない転写部に搬送さ
れていく。 To feed paper, with the cassette 32 mounted as described above, the clutch (not shown) of the spindle 2 is engaged in response to a paper feed signal, and the paper feed roller 1 is driven to rotate counterclockwise. One of the top layers of the copy paper 42 to be pressed onto the guide plates 27 and 28
The paper is fed while being guided by the paper, and then transported to a transfer section (not shown) by a pair of timing rollers 26.

複写紙４２は給紙されるごとにカセツト３２内
の残量が減少し、それに応じて圧着ローラ１５が
圧着用コイルばね１９により支軸１２とともに反
時計回り方向に回動し、カセツト３２の台板３７
を介して複写紙４２を給紙ローラ１に圧着しつづ
ける。圧着ローラ１５の回動にともなつて圧着解
除レバー２０（第１図ないし第３図参照）も反時
計回り方向に回動し、この回動角度によつて使用
者は、圧着解除レバー２０がカセツト３２の側板
３３の目盛を指すことによつて複写紙４２の残量
を確認することができるのである。 Each time the copy paper 42 is fed, the amount remaining in the cassette 32 decreases, and accordingly, the pressure roller 15 rotates counterclockwise together with the support shaft 12 by the pressure coil spring 19, and the copy paper 42 is rotated counterclockwise to the base of the cassette 32. Board 37
The copy paper 42 is continued to be pressed against the paper feed roller 1 via. As the pressure roller 15 rotates, the pressure release lever 20 (see FIGS. 1 to 3) also rotates counterclockwise. By pointing to the scale on the side plate 33 of the cassette 32, the remaining amount of copy paper 42 can be confirmed.

つぎに、カセツト３２をこの給紙装置から取出
す場合であるが、上記圧着解除レバー２０を時計
回り方向に回動させてカセツト３２を引き出せば
よい。すなわち、圧着解除レバー２０の回動とと
もに支軸１２、アーム１３が時計回り方向に回動
し、圧着ローラ１５が複写紙４２の持ち上げを解
除するとともに、ピン１４がロツク板２１の突片
２３を押圧して該ロツク板２１を下方に回動さ
せ、ロツク爪２２がカセツト３２に対するロツク
を解除し、カセツト３２は前面に圧接するトーシ
ヨンばね３１にて左方に若干押し戻される（第５
図参照）。このときカセツト３２の戻りによりカ
セツト３２の切欠き段部３４に当接しているピン
６が移動し、ロツクレバー５はコイルばね９によ
り時計方向に回動され、ロツクレバー５の切欠き
８がレバー１６のピン１７に係合し、レバー１６
の圧着用コイルばね１９による回動を係止する。
これにより給紙装置はカセツト３２が装着される
直前の状態に復帰する。トーシヨンばね３１はロ
ツクレバー５の切欠き８とレバー１６のピン１７
とが係合できるだけカセツト３２を押し戻す力を
有するものである。 Next, in order to take out the cassette 32 from this paper feeding device, the cassette 32 can be pulled out by rotating the pressure release lever 20 clockwise. That is, as the pressure release lever 20 rotates, the support shaft 12 and the arm 13 rotate clockwise, the pressure roller 15 releases the lifting of the copy paper 42, and the pin 14 touches the protrusion 23 of the lock plate 21. The lock plate 21 is pressed and rotated downward, the lock pawl 22 releases the lock on the cassette 32, and the cassette 32 is pushed back slightly to the left by the torsion spring 31 that presses against the front surface (fifth
(see figure). At this time, as the cassette 32 returns, the pin 6 that is in contact with the stepped notch 34 of the cassette 32 moves, and the lock lever 5 is rotated clockwise by the coil spring 9, so that the notch 8 of the lock lever 5 moves into the lever 16. engages pin 17 and lever 16
Rotation by the crimping coil spring 19 is locked.
As a result, the paper feeding device returns to the state immediately before the cassette 32 was installed. The torsion spring 31 is connected to the notch 8 of the lock lever 5 and the pin 17 of the lever 16.
It has the force to push back the cassette 32 as far as it can be engaged.

また、上記給紙装置はカセツト３２に代えて第
７図に示す手差し給紙カセツト４３を装着して所
望サイズにカツトされた複写紙を１枚づつ手差し
給紙できる。 In addition, the above-mentioned paper feeding device is equipped with a manual paper feeding cassette 43 shown in FIG. 7 in place of the cassette 32, so that copy sheets cut to a desired size can be manually fed one by one.

手差し給紙カセツト４３は上記ロツクレバー
５、圧着手段１０に対しては上記カセツト３２と
同様の係合関係を有する構成とされているが、台
板４６を複写紙載置板４４の凹部４５（第６図参
照）にヒンジ結合して上下に回動自在に設け、複
写紙の先端位置を規制する当て板４７を上記台板
４６の前面に臨ましめたもので、上記複写紙載置
板４４上には巾方向に移動自在な周知のガイド板
４８，４８が設置されている。 The manual paper feed cassette 43 has the same engagement relationship with the lock lever 5 and the pressure bonding means 10 as the cassette 32, but the base plate 46 is connected to the recess 45 (the third The plate 47 is hinged to the base plate 46 (see Fig. 6) and is provided to be freely rotatable up and down, and faces the front of the base plate 46 for regulating the position of the leading edge of the copy paper. On the top, well-known guide plates 48, 48 that are movable in the width direction are installed.

この手差し給紙カセツト４３は上記自動給紙カ
セツト３２と同様に給紙装置に挿入され、ロツク
板２１のロツク爪２２にてロツクされる。同時
に、台板４６は圧着ローラ１５にて持ち上げられ
るが、給紙ローラ１と同軸に固定したカム３に当
接し、給紙ローラ１と台板４６との間に若干の間
隙が形成され、かつ当て板４７は台板４６の先端
より若干上方に突出している（第６図参照）。手
差し給紙される複写紙は載置板４４上をすべらせ
て先端が給紙ローラ１と台板４６との間隙から当
て板４７に当接することにより位置決めされる。 This manual paper feed cassette 43 is inserted into the paper feed device in the same way as the automatic paper feed cassette 32, and is locked by the lock pawl 22 of the lock plate 21. At the same time, the base plate 46 is lifted by the pressure roller 15, but comes into contact with the cam 3 fixed coaxially with the paper feed roller 1, and a slight gap is formed between the paper feed roller 1 and the base plate 46, and The backing plate 47 projects slightly upward from the tip of the base plate 46 (see FIG. 6). The manually fed copy paper is positioned by sliding it on the placement plate 44 and abutting the tip of the copy paper against the backing plate 47 through the gap between the paper feed roller 1 and the base plate 46.

給紙信号により給紙ローラ１とカム３とが同期
して反時計回り方向に回転駆動されると、一定の
回転角度でカム３が台板４６の押圧を解除すると
ともに台板４６が圧着ローラ１５にて持ち上げら
れ、給紙ローラ１が複写紙に圧着して該複写紙が
給紙され、以後タイミングローラ２６にて右方へ
搬送されていく。なお、この給紙時において台板
４６の先端は当て板４７の先端と同一面上あるい
はそれより若干高くなる位置まで圧着ローラ１５
によつて持ち上げられる必要がある。 When the paper feed roller 1 and the cam 3 are synchronously driven to rotate counterclockwise by the paper feed signal, the cam 3 releases the pressure on the base plate 46 at a certain rotation angle, and the base plate 46 moves to the pressure roller. 15, the paper feed roller 1 presses against the copy paper, the copy paper is fed, and thereafter the copy paper is conveyed to the right by the timing roller 26. Note that during this paper feeding, the pressure roller 15 is moved until the tip of the base plate 46 is on the same level as the tip of the backing plate 47 or to a position slightly higher than that.
need to be lifted by.

この手差し給紙において複写紙の先端が当て板
４７によつて位置決めされる位置は、上記カセツ
ト３２を使用する場合の複写紙の先端位置よりl2
だけ前方に設定される（第８図、第９図参照）。
これは手差し給紙の場合、カム３が介在するため
に、複写紙４２が給紙ローラ１に圧着して給紙が
開始されるまでに僅かなタイムラグがあり、この
タイムラグを解消していずれの給紙に際しても同
一シーケンスで制御を可能とするためである。ち
なみに、l2は給紙ローラ１が回転を始めてから複
写紙４２に圧着し給紙を開始する円周長さに相当
する。 The position at which the leading edge of the copy paper is positioned by the cover plate 47 during manual paper feeding is l 2 from the position of the leading edge of the copy paper when using the cassette 32.
(see Figures 8 and 9).
This is because in the case of manual paper feeding, since the cam 3 is involved, there is a slight time lag between the copy paper 42 being pressed against the paper feed roller 1 and paper feeding starting. This is to enable control in the same sequence even when feeding paper. Incidentally, l 2 corresponds to the circumferential length of the paper feed roller 1 after it starts rotating and presses against the copy paper 42 and starts feeding the copy paper 42 .

すなわち、カセツト３２を使用する場合の通常
の給紙において複写紙４２の先端からタイミング
ローラ２６までの長さをl1とすると（第８図参
照）、手差し給紙においてはその長さはl3であ
り、l2（l1−l3）分だけ複写紙４２の先端を前方に
位置させることとするのである。 That is, if the length from the leading edge of the copy paper 42 to the timing roller 26 in normal paper feeding when using the cassette 32 is l 1 (see Fig. 8), then in manual paper feeding, the length is l 3 Therefore, the leading edge of the copy paper 42 is positioned forward by l 2 (l 1 −l 3 ).

これにより給紙ローラ１、タイミングローラ２
６を回転駆動するタイミングはカセツト３２及び
手差しカセツト４３によるいずれの給紙において
も同じである。 As a result, paper feed roller 1, timing roller 2
The timing for rotationally driving the paper feed cassette 6 is the same for both paper feeding by the cassette 32 and the manual feed cassette 43.

なお、実際の複写紙４２と給紙ローラ１との間
にはスリツプが生じ、さらにタイミングローラ２
６と給紙ローラ１との間で複写紙４２をループさ
せている。 Note that slips occur between the actual copy paper 42 and the paper feed roller 1, and the timing roller 2
The copy paper 42 is looped between the paper feed roller 1 and the paper feed roller 1.

このスリツプ率とループ量をそれぞれＳ，l4と
すると、カセツト３２の使用時の給紙ローラ１に
より必要な送り量Ａは、 Ａ＝（l1＋l4）×（１＋Ｓ） となり、第１０図で示すごとく給紙ローラ１が回
転し、そのローラ１の円周の長さＡだけ回転した
ときタイミングローラ２６が回転し、複写紙４２
を搬送する。なお、タイミングローラ２６が回転
し、支軸２が１回転して停止しても、給紙ローラ
１はタイミングローラ２６により搬送されている
複写紙４２と接している間、クラツチＣにより従
動回転する。 Assuming that the slip rate and loop amount are S and l4 , respectively, the feed amount A required by the paper feed roller 1 when the cassette 32 is used is A=( l1 + l4 )×(1+S), as shown in Fig. 10. When the paper feed roller 1 rotates as shown in FIG.
transport. Note that even if the timing roller 26 rotates and the spindle 2 rotates once and then stops, the paper feed roller 1 is driven to rotate by the clutch C while it is in contact with the copy paper 42 being conveyed by the timing roller 26. .

また、手差し給紙カセツト４３を使用したと
き、給紙ローラ１に必要な送り量Ｂは、 Ｂ＝（l3＋l4）×（１＋Ｓ） である。 Further, when the manual paper feed cassette 43 is used, the feed amount B necessary for the paper feed roller 1 is B=(l 3 +l 4 )×(1+S).

このときカム３により給紙を送らせる量Ｄは、 Ｄ＝（l1−l3）×（１＋Ｓ）＝l2×（１＋Ｓ） であり、第１１図に示すごとく、給紙ローラ１が
回転し、その円周の長さＤだけ回転したとき、給
紙ローラ１は複写紙４２に当接して給紙を開始す
る。そこからさらに円周の長さＢだけ給紙ローラ
１が回転したとき、タイミングローラ２６は回転
し、複写紙４２を搬送する。給紙ローラ１の支軸
２は１回転で停止するが、この回転の終了時にカ
ム３は再び台板４６を押し下げ、給紙ローラ１と
台板４６との間に間隙を形成する。 At this time, the amount D by which the paper is fed by the cam 3 is D = (l 1 - l 3 ) x (1 + S) = l 2 x (1 + S), and as shown in Fig. 11, the paper feed roller 1 rotates. When the paper feed roller 1 rotates by the length D of the circumference, the paper feed roller 1 comes into contact with the copy paper 42 and starts feeding the copy paper. When the paper feed roller 1 further rotates by a circumferential length B, the timing roller 26 rotates and conveys the copy paper 42. The support shaft 2 of the paper feed roller 1 stops after one rotation, but at the end of this rotation, the cam 3 pushes down the base plate 46 again to form a gap between the paper feed roller 1 and the base plate 46.

なお、この間隙の形成はタイミングローラ２６
が回転し複写紙４２の搬送が開始されたのちに行
なわれる。 Note that this gap is formed by the timing roller 26.
This is carried out after the rotation of the copy paper 42 starts.

上記のごとく給紙ローラ１、カム３、タイミン
グローラ２６を駆動すれば、Ａ＝Ｂ＋Ｄとなり、
自動給紙カセツト３２及び手差し給紙カセツト４
３を使用したいずれの給紙においても、給紙ロー
ラ１やタイミングローラ２６の回転時期の調整を
する必要がない。 If the paper feed roller 1, cam 3, and timing roller 26 are driven as described above, A=B+D,
Automatic paper feed cassette 32 and manual paper feed cassette 4
No. 3 is used to feed paper, there is no need to adjust the rotation timing of the paper feed roller 1 or the timing roller 26.

以上の説明で明らかなように、本発明は、複写
機本体に選択的に着脱可能な自動給紙カセツト及
び手差し給紙カセツトと、自動給紙及び手差し給
紙に共通の給紙ローラと、上記両カセツトに設け
た複写紙台板を給紙ローラ側に付勢する圧着手段
と、上記給紙ローラと一体回転可能に設置され、
手差し給紙カセツトの複写紙台板を位置決めする
カム部材とを備え、手差し給紙時においては給紙
ローラと同期するカム部材の回転に従動して複写
紙台板が複写紙を介して給紙ローラに圧着し、自
動給紙とは一定のタイムラグをもつて複写紙を給
紙する一方、手差し給紙カセツトに設けた複写紙
先端規制部材を自動給紙カセツトに設けた複写紙
先端規制部材よりも上記タイムラグの複写紙移動
距離だけ給紙方向に位置させたために、使用頻度
の少ない手差し給紙カセツトを常設する必要がな
いばかりか、給紙ローラ，圧着手段等とを兼用
し、手差し給紙専用部材としてはカム部材のみを
複写機本体の給紙部に設置すればよく、構成が極
めて簡略化され、スペース効率も格段に向上す
る。しかも、各カセツトの複写紙先端規制部材を
給始開始時のタイムラグに対応させることによ
り、いずれの給紙に際しても同一シーケンスが制
御が可能である。 As is clear from the above description, the present invention includes an automatic paper feed cassette and a manual paper feed cassette that can be selectively attached to and removed from the main body of a copying machine, a paper feed roller common to automatic paper feed and manual paper feed, and a pressure bonding means for urging copy paper base plates provided on both cassettes toward the paper feed roller, and a pressure bonding means installed to be able to rotate integrally with the paper feed roller;
A cam member that positions the copy paper base plate of the manual paper feed cassette is provided, and during manual paper feeding, the copy paper base plate feeds paper through the copy paper as the cam member rotates in synchronization with the paper feed roller. It is pressed against the roller, and while automatic paper feeding feeds copy paper with a certain time lag, the copy paper leading edge regulating member installed in the manual paper feed cassette is replaced by the copy paper leading edge regulating member installed in the automatic paper feeding cassette. Since the copy paper is moved in the paper feeding direction by the above-mentioned time lag, there is no need to permanently install a manual paper feed cassette, which is rarely used. As a dedicated member, only the cam member needs to be installed in the paper feed section of the main body of the copying machine, which greatly simplifies the configuration and greatly improves space efficiency. Furthermore, by making the copy paper leading end regulating member of each cassette correspond to the time lag at the start of feeding, the same sequence can be controlled for any paper feeding.

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

図面は本発明に係る給紙装置を示し、第１図は
斜視図、第２図は自動給紙カセツトの斜視図、第
３図は第１図の要部の正面図、第４図は自動給紙
カセツト装着時の第１図におけるＡ―Ａ線断面
図、第５図は圧着解除時の上記Ａ―Ａ線に相当す
る断面図、第６図は手差し給紙カセツトを装着し
た状態の上記Ａ―Ａ線に相当する断面図、第７図
は手差し給紙カセツトの斜視図、第８図，第９図
は給紙の説明図、第１０図，第１１図は給紙のタ
イムチヤートである。 １…給紙ローラ、３…カム、１０…圧着手段、
１５…圧着ローラ、３２…自動給紙カセツト、３
７…台板、３９…分離爪（複写紙先端規制部
材）、４３…手差し給紙カセツト、４６…台板、
４７…当て板（複写紙先端規制部材）。 The drawings show a paper feeding device according to the present invention, FIG. 1 is a perspective view, FIG. 2 is a perspective view of an automatic paper feeding cassette, FIG. 3 is a front view of the main parts of FIG. 1, and FIG. 4 is an automatic paper feeding device. Figure 5 is a cross-sectional view taken along line A-A in Figure 1 when the paper feed cassette is attached, Figure 5 is a cross-sectional view taken along line A-A above when the crimping is released, and Figure 6 is the cross-sectional view shown above when the manual paper feed cassette is attached. Figure 7 is a perspective view of the manual paper feed cassette, Figures 8 and 9 are explanatory diagrams of paper feeding, and Figures 10 and 11 are time charts of paper feeding. be. 1... Paper feed roller, 3... Cam, 10... Pressing means,
15...Pressure roller, 32...Automatic paper feed cassette, 3
7... Base plate, 39... Separation claw (copy paper leading edge regulating member), 43... Manual paper feed cassette, 46... Base plate,
47...Packing plate (copy paper leading edge regulating member).

Claims (1)

【特許請求の範囲】[Claims] １ 複写機本体に選択的に着脱可能な自動給紙カ
セツト及び手差し給紙カセツトと、自動給紙及び
手差し給紙に共通の給紙ローラと、上記両カセツ
トに設けた複写紙台板を給紙ローラ側に付勢する
圧着手段と、上記給紙ローラと一体回転可能に設
置され、手差し給紙カセツトの複写紙台板を位置
決めするカム部材とを備え、手差し給紙時におい
ては給紙ローラと同期するカム部材の回転に従動
して複写紙台板が複写紙を介して給紙ローラに圧
着し、自動給紙とは一定のタイムラグをもつて複
写紙を給紙する一方、手差し給紙カセツトに設け
た複写紙先端規制部材を自動給紙カセツトに設け
た複写紙先端規制部材よりも上記タイムラグの複
写紙移動距離だけ給紙方向に位置させたことを特
徴とする電子写真複写機における給紙装置。1 An automatic paper feed cassette and a manual paper feed cassette that can be selectively attached to and removed from the copying machine main body, a paper feed roller common to automatic paper feed and manual paper feed, and a copy paper base plate provided in both of the above cassettes for paper feeding. It is equipped with a pressure bonding means that urges the roller side, and a cam member that is installed to be rotatable together with the paper feed roller and that positions the copy paper base plate of the manual paper feed cassette. Following the rotation of the synchronized cam member, the copy paper base plate presses the copy paper to the paper feed roller, and while automatic paper feeding feeds copy paper with a certain time lag, the manual paper feed cassette Paper feeding in an electrophotographic copying machine, characterized in that a copy paper leading edge regulating member provided in an automatic paper feeding cassette is positioned in the paper feeding direction by a copy paper moving distance of the above-mentioned time lag than a copy paper leading edge regulating member provided in an automatic paper feeding cassette. Device.
JP57171447A 1982-09-29 1982-09-29 Paper feeder in electrophotographic copying machine Granted JPS58111957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57171447A JPS58111957A (en) 1982-09-29 1982-09-29 Paper feeder in electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57171447A JPS58111957A (en) 1982-09-29 1982-09-29 Paper feeder in electrophotographic copying machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP11537978A Division JPS5541462A (en) 1978-09-19 1978-09-19 Paper feed device in electrophotographic copier

Publications (2)

Publication Number Publication Date
JPS58111957A JPS58111957A (en) 1983-07-04
JPS6127298B2 true JPS6127298B2 (en) 1986-06-25

Family

ID=15923273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57171447A Granted JPS58111957A (en) 1982-09-29 1982-09-29 Paper feeder in electrophotographic copying machine

Country Status (1)

Country Link
JP (1) JPS58111957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229757Y2 (en) * 1987-02-13 1990-08-09
JPH02218198A (en) * 1989-02-20 1990-08-30 Mitsui Toatsu Chem Inc Door see-through window having microwave shielding power

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0229757Y2 (en) * 1987-02-13 1990-08-09
JPH02218198A (en) * 1989-02-20 1990-08-30 Mitsui Toatsu Chem Inc Door see-through window having microwave shielding power

Also Published As

Publication number Publication date
JPS58111957A (en) 1983-07-04

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