JPS60132844A - Cassette-type sheet feeder - Google Patents
Cassette-type sheet feederInfo
- Publication number
- JPS60132844A JPS60132844A JP58240406A JP24040683A JPS60132844A JP S60132844 A JPS60132844 A JP S60132844A JP 58240406 A JP58240406 A JP 58240406A JP 24040683 A JP24040683 A JP 24040683A JP S60132844 A JPS60132844 A JP S60132844A
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- copy paper
- lever
- pressure member
- operating lever
- 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
- B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
- B65H1/12—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising spring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fixing For Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電子写真複写装買または電了写真原即を応用す
るオフセ多卜印刷機等のカセット方式給紙装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette-type paper feeding device for an offset printing machine or the like to which an electrophotographic copying device or an electrophotographic original is applied.
従来□例の構成と去の問題点
現在多くの複写′！Ａ置において複写紙（転写紙、感光
紙）収容力セラ１〜が利用されていることは周知の通り
である。ノＪセッ１〜はＩＰ？本体に対して着脱自在に
設けられており、従って使用しようとする複写紙のサイ
ズが、装置内に充填されているカセット内の複写紙サイ
ズと異な゛る場合舊あ・でも、カセッ□トの交換のみで
複写紙交換が可能で複写−交換操作上便利であり、広く
利用されている。Conventional □Example composition and problems of the pastCurrently there are many copies'! It is well known that copy paper (transfer paper, photosensitive paper) storage capacity cellars 1 to 1 are utilized in the A location. No J set 1~ is IP? It is detachably attached to the main body, so if the size of the copy paper you are trying to use is different from the copy paper size in the cassette filled in the device, the cassette □ It is possible to exchange copy sheets simply by exchanging them, which is convenient for copying and exchanging operations, and is widely used.
従来のカレット方式給紙１Ｗ’ｌＶは、カセットを所゛
定位置に固定する段階と、カセット内の複写紙を−２−
給送手段側に押上げる加圧部材を複写紙に作用せしめる
段階とに分かれていた。即ち、カセット装置り加圧部材
と関係づけたレバーを手操作で作動せしめることにより
、加圧部材を給送手段から離接させカセット底部より下
方の位置へ係止せしめ、次にカセットを装置本体の所定
箇所に固定し、しかるのち前述のレバーを前述とは逆の
方向へ作動せしめることによって、加圧部材と複写紙の
係合を行わせて複写操作の準備を完了するものがある。The conventional cullet type paper feeding 1W'lV includes the steps of fixing the cassette in a predetermined position and applying a pressure member to the copy paper to push up the copy paper in the cassette toward the feeding means. It was divided into That is, by manually operating a lever associated with the cassette device or pressure member, the pressure member is moved away from the feeding means and locked in a position below the bottom of the cassette, and then the cassette is inserted into the device body. There are some devices in which the pressing member is fixed at a predetermined location and then the aforementioned lever is actuated in the opposite direction to engage the pressure member with the copying paper, thereby completing the preparation for the copying operation.
この場合、加圧部材を離接せしめた後、複写操作準備完
了までに二度の異った作業をしなければならない：こと
は、取扱上きわめて煩わしいものである。In this case, after the pressurizing member is brought into contact and separated, two different operations must be performed before the preparation for copying operation is completed; this is extremely troublesome in terms of handling.
又、カセット交換時にレバーを手操作で回動する動作に
連動して加圧部材をカセット底部より下方に係止せしめ
ると共に加圧部材にバネ力を蓄勢させた状態で加圧部材
を係止させ、カセット検知突子をカセット装填完了時に
カセットに設けられた何らかの箇所に当てて機械的連動
により前加圧部材の係止を解除し、バネの蓄勢力で加圧
部材と−３−
複写紙との係合を行わせてカセット内に収納した複写紙
の最上位を給送手段に圧接せしめ、複写操作の準備を完
了するものがある。この場合は、前者の場合に比べてカ
セット装填動作により複写準備が完了できるという利点
があるが、カセットにセットされた複写紙と違う複写紙
を使用して複写をする時にはレバーを回動させ加圧部材
を係止させ、カセットを引き抜いてカセットに堆積しで
ある複写紙を取り出した後、別の複写紙をあらかじめ堆
積しであるカセットを装填しなければならないという極
めて煩わしい欠点を有するものであった。Also, when replacing the cassette, the pressure member is locked below the bottom of the cassette in conjunction with the manual rotation of the lever, and the pressure member is locked with the spring force stored in the pressure member. When loading the cassette is completed, the cassette detection protrusion is applied to some place provided on the cassette to release the locking of the front pressure member by mechanical interlocking, and the pressure member is pressed by the stored force of the spring. Some devices complete preparations for a copying operation by engaging the paper and pressing the topmost copy of the copy paper stored in the cassette against the feeding means. In this case, there is an advantage over the former case that copy preparations can be completed by loading the cassette, but when copying using copy paper different from the copy paper set in the cassette, the lever must be rotated. This method has the extremely troublesome disadvantage that, after the pressure member has been locked, the cassette has been pulled out, and the copy paper stacked in the cassette has been taken out, the cassette in which another copy paper has been stacked must be loaded. Ta.
発明の目的
本発明は、カセットにセットされた複写紙と違う複写紙
を使用して複写をする時にはレバーを回動して加圧部材
を係止さゼ、カセットに装填しである複写紙と同じサイ
ズの複写紙を使用する場合には堆積しである複写紙の上
に積重ねて堆積し、また違うサイズの複写紙を使用する
場合にはカセットを一時取り出して使用する複写紙をセ
ットし−４−
Ｔ！度装嬰させ、あるいは、カセツ１−を抜ぎ出さずに
カセ、ットに堆積しである複写紙を入れ換えた後、岸−
レバー全復帰させるだけでよく、カセットを再度装填す
る動作を経ずに複写準備を完了できる操作性の良好なカ
セット方式給紙装置を提供することを目的とする。Purpose of the Invention The present invention provides a method for copying using copy paper different from the copy paper loaded in the cassette by rotating a lever to lock the pressure member. When using copy paper of the same size, stack it on top of the stack of copy paper, and when using copy paper of a different size, temporarily remove the cassette and set the copy paper to be used. 4-T! After reloading the copy paper or replacing the copy paper that has accumulated in the cassette without removing cassette 1-,
To provide a cassette type paper feeding device with good operability, which allows copying preparation to be completed by simply fully returning a lever and without reloading a cassette.
発明の構成
本発明のカセット方式給紙装置は、カセットと、カセッ
トの複写紙底部を押上げて複写紙最上位を給送手段に圧
接させるよう回動自在に取りつけられバネで付勢された
加圧部材と、この加圧部材を操作レバーの（９）動に伴
って複写紙を給送手段、から離接させカセット底部より
下方へ係止する係止手段と、カセットに設けられたカム
によりカセット装填動作に伴って係止手段の係合を解除
させる第７の解除手段と、前記係止手段と連動されてな
る第２９解除、手段章有し６、カセットの装填動作によ
り第１の解除手段を作動させ、操作レバーの復帰動作、
に連動させて第２の解除手段を作動させ、加圧部材を所
定位置に復帰させるよう構成し、カセー ５ −
ットを抜ぎ出して複写紙の交換を行う方法とカセットを
抜き出さずに複写紙の交換を行う方法の両方を可能にし
たものである。Structure of the Invention The cassette-type paper feeding device of the present invention comprises a cassette and a spring-biased force that is rotatably attached to push up the bottom of the copy paper in the cassette and press the topmost copy paper to the feeding means. A pressure member, a locking means for moving the pressure member toward and away from the feeding means and locking the pressure member downward from the bottom of the cassette in accordance with the movement of the operating lever (9), and a cam provided on the cassette. a seventh release means for releasing the engagement of the locking means in accordance with the cassette loading operation; a twenty-ninth release means interlocked with the locking means; activating the means and returning the operating lever;
The second release means is operated in conjunction with the cassette, and the pressure member is returned to a predetermined position. This enables both methods of exchanging copy paper.
実施例の説明
本発明の給紙装置による給紙方法は、装置本体側の所定
の位置に給送手段を固定せしめておき、複写操作に伴う
堆積複写紙の減少による複写紙の給送手段との係合は堆
積複写紙を上昇せしめる機構により確実に保ち、、即ち
定位置から複写用紙をスタートさせる方法に属するもの
であり、カセットの構造はカセット内にスプリング等の
加圧部材を有す、るものではなく、装置本体側に設けた
加圧部材との係合により複写紙の上昇が得られる構造で
あって、斯様な結合形態に、おけるカセット方式給、祇
装冒である。DESCRIPTION OF THE EMBODIMENTS The paper feeding method using the paper feeding device of the present invention is such that the feeding means is fixed at a predetermined position on the main body of the device, and the feeding means for copy paper is reduced by reducing the amount of accumulated copy paper due to the copying operation. The engagement is ensured by a mechanism that raises the stacked copy paper, that is, it belongs to a method of starting the copy paper from a fixed position, and the structure of the cassette includes a pressure member such as a spring inside the cassette. The structure is such that the copy paper can be lifted up by engagement with a pressure member provided on the main body of the apparatus, and this type of connection is a cassette-type feeding system.
以下、本、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図に示すごとく、カセットは、カセット本体箱１と
複写紙受は板２とからなり、複写紙受は板２には複写紙
のサイズを選ばず複写紙の搬送方−〇 −
白画側部を規制できる規制部材３．３′が股（）てあり
、複写紙受は板２はカセット本体箱１の側壁４．４′に
植設されたビン５．５′にゆるく回動自在に支承され、
その上に複写紙が堆積されセットされる。又、カセット
本体箱１の前方側端部には傾斜してなる面を形成するカ
ム６が設（プである。As shown in Fig. 1, the cassette consists of a cassette body box 1 and a copy paper tray plate 2. There is a regulating member 3.3' that can regulate the side part, and the plate 2 of the copy paper tray is loosely rotatable on the bin 5.5' installed in the side wall 4.4' of the cassette main box 1. supported by
Copy paper is stacked and set on top of it. Further, a cam 6 forming an inclined surface is provided at the front end of the cassette main body box 1.
なお、このカセットには従来よく使用されている分離爪
は設けられていない。そして第２図のように複写紙７を
セットしたカセッ１〜を複写装置本体８に設けたカセッ
ト載置台９に装着して、複写装置側に設けた第１の給送
手段１０に複写紙受は板２を介してカセットの複写紙を
加圧部材１１により上方へ押し上げて圧接させ、複写紙
７を第１の給送手段１０の時計方向回転により送り出し
、重送防止手段１２によりさばかれた複写紙７を一枚ず
つ順次に繰出し給紙を行うものである。複写紙７が減少
してもそれにつれて加圧部Ｎ１１がバネ（図示せず）に
より軸１４を中心として反時計方向に回転するよう押上
げられるのに・伴って複写紙７の最上面の位置は常に一
定に保″たれ、かつ複写紙の厚さ、重さ−７−
に関連づりてバネ（図示せず）の強さが設計されている
ので複写紙７は常に一定の圧力で給送手段１０に圧接さ
れる。１５．１６は複写紙案内板、１７．１７’は搬送
ローラ、１８．１９は転写ガイド板を示す。又、装置本
体８にはカセット内の複写紙７の有無を検出する複写紙
有無センサ５４がアクチュエータ５５を介して複写紙の
有無を検出するよう設けである。Note that this cassette is not provided with a separation claw, which is commonly used in the past. Then, as shown in FIG. 2, the cassettes 1 to 1 containing the copy paper 7 are mounted on the cassette mounting table 9 provided on the copying machine main body 8, and the copy paper receiving unit is placed in the first feeding means 10 provided on the copying machine side. The copy paper in the cassette is pushed upward by the pressure member 11 through the plate 2 and pressed against it, and the copy paper 7 is sent out by clockwise rotation of the first feeding means 10 and separated by the double feeding prevention means 12. Copy paper 7 is fed and fed one by one. Even if the copy paper 7 decreases, the pressure member N11 is pushed up by a spring (not shown) to rotate counterclockwise around the shaft 14, and accordingly, the position of the top surface of the copy paper 7 decreases. is always kept constant, and the strength of the spring (not shown) is designed in relation to the thickness and weight of the copy paper, so the copy paper 7 is always fed with a constant pressure. It is pressed against the means 10. Reference numerals 15 and 16 indicate a copy paper guide plate, 17 and 17' indicate a conveyance roller, and 18 and 19 indicate a transfer guide plate.In addition, the main body 8 of the apparatus indicates whether or not there is copy paper 7 in the cassette. A copy paper presence/absence sensor 54 is provided to detect the presence or absence of copy paper via an actuator 55.
次に操作レバーとその動作構成を第３図、第４図、第５
図を用いて説明する。操作レバー２Ｇは装置本体８に植
設したビン２１に回動自在に設けてあり、操作レバー２
０にはビン２２が植設しである。軸１４と略同芯をなし
軸１４どは無関係に装置本体８に植設したビン２３には
回動自在にレバー４７が設けてあり、レバー４７にはビ
ン４８．４９が植設されている。Next, the operating lever and its operating configuration are shown in Figures 3, 4, and 5.
This will be explained using figures. The operating lever 2G is rotatably provided on a bottle 21 installed in the main body 8 of the device.
0 has a bottle 22 installed. A lever 47 is rotatably provided on the bottle 23, which is substantially concentric with the shaft 14 and is installed in the main body 8 of the device, regardless of the shaft 14, and a lever 47 is installed with bottles 48 and 49. .
リンク５０は一方を操作レバー２０に設けたビン２２に
、又、他方をレバー４７に設（チたビン４８にゆる（嵌
合して操作レバー２０とレバー４７とは機械的に連動さ
れている。リンク５０にはレバニ３１に設けた略り字形
折曲部５１を操作レバー２０の復帰動作時に押す突起部
５２が設けである。装置側板３５．３５’ に軸支さ−
８−
れるよう設けた前記軸１４には、加圧部材１１が複写紙
搬送の中心にある位置に固着され、軸１４の一端部には
加圧部材を反時計方向に回転せしめるよう付勢するバネ
（図示せず）が設けてあり、他端には円板の一部を略し
字にカットした係止受は部材２５が軸１４に嵌着して軸
１４と共に一体的に回動する。The link 50 has one end attached to the pin 22 provided on the operating lever 20, and the other end attached to the lever 47 (fits loosely into the attached bottle 48), so that the operating lever 20 and lever 47 are mechanically interlocked. The link 50 is provided with a protrusion 52 that pushes an abbreviated bent portion 51 provided on the lever 31 when the operating lever 20 returns.
8- A pressure member 11 is fixed to the shaft 14, which is provided so as to be rotated, at a position at the center of copy paper conveyance, and one end of the shaft 14 is biased to rotate the pressure member counterclockwise. A spring (not shown) is provided, and a member 25, which is formed by cutting a portion of a disc into an abbreviated shape, is fitted onto the shaft 14 and rotates integrally with the shaft 14 at the other end.
又、軸１４にはレバー２６が軸１４と一体に回動するよ
う設けである。装置側板３５に植設したビン２７を支点
として回動自在に設けた係止受は部材２５のロック爪２
８が設けてあり、ロック爪２８にはビン２９が固定され
ている。又、Ｏツク爪２８の先端部３０は係止受は部材
２５の外周に当接せしめである。そしてビン２７にゆる
く嵌合されたレバー３１を設は前記ロック爪・２８に固
定したビン２９がレバー３１に設けた長穴３２にはまり
、ロック爪２８とレバー３１は機械的に連動されビン２
７を中心として一体的に回動するよう。Further, a lever 26 is provided on the shaft 14 so as to rotate together with the shaft 14. The locking receptacle, which is rotatably provided on the side plate 35 of the device with the bin 27 as a fulcrum, is connected to the lock claw 2 of the member 25.
8, and a bottle 29 is fixed to the lock claw 28. Further, the tip end 30 of the O-claw 28 is brought into contact with the outer periphery of the member 25 as a locking receiver. Then, the lever 31 that is loosely fitted to the bottle 27 is set so that the bottle 29 fixed to the lock claw 28 fits into the elongated hole 32 provided in the lever 31, and the lock claw 28 and the lever 31 are mechanically interlocked.
It seems to rotate integrally around 7.
に構成されている。レバー３１はバネ３３でビン２７を
中心として時計方向に付勢されることによりロック爪２
８の先端部３０は係止受は部材２５の外周に確実にそわ
されている。装置側板３５に植設されたビン−９−
３６にアーム３７が回動自在に設各プてあり、このアー
ム３７上に植設されたビン３８と検知突子３９が回動自
在に設けられている。そしてこの検知突子３９はバネ４
０によりビン３８を中心として時計方向に付勢されてア
ーム３７に対接する状態とされる。又、アーム３７の勅
きはレバー３１にリンク４１により作動力が効果的につ
ながるよう設【プである。第４図で４２は定着器で、定
着器側板４３に植設されたビン４４に回動自在に設【プ
た離接操作レバー５３には時計方向に回ｖ１さゼること
により、定着器４２を構成する加熱ローラ４５と押圧ロ
ーラ４６を離接するｉきを持たせるよう構成されている
。It is composed of The lever 31 is biased clockwise around the bottle 27 by a spring 33, so that the lock pawl 2
The distal end portion 30 of 8 is securely placed against the outer periphery of the member 25. An arm 37 is rotatably mounted on a bottle 9-36 planted on the side plate 35 of the device, and a bottle 38 and a detection protrusion 39 mounted on the arm 37 are rotatably mounted. ing. This detection protrusion 39 is connected to the spring 4
0, it is urged clockwise around the bottle 38 and brought into contact with the arm 37. Further, the arm 37 is designed so that the operating force is effectively connected to the lever 31 through a link 41. In FIG. 4, reference numeral 42 denotes a fuser, which is rotatably mounted on a bottle 44 embedded in a side plate 43 of the fuser. The heating roller 45 and the pressing roller 46 constituting the roller 42 are configured to have an angle of contact and separation.
次に動作に基づいて構成を更に詳しく説明する。Next, the configuration will be explained in more detail based on the operation.
カセッ１〜を装置本体８から抜き出す時には、操作レバ
ー２０をビン２１を中心に時計方向に回動させてリンク
５ＯにＪ：り連動されたレバー４７を時計方向へ回動さ
せる。レバー４７に固定されたビン４９がレバー２６と
係合してレバー２６を軸１４を中心に時計方向へ回動さ
せる。それに伴って軸１４が回転され、加圧部材１１が
バネ（図示せず）力に抗して回動し、−１０−
加圧部材１１がカセット底部より下方へ位置した時、ロ
ック爪２８の先端部３０が軸１４に嵌着された係止受は
部材２５の略り字にカットした箇所へ係合し、加圧部材
１１はカセット底部より下方へ係止され、複写紙が給送
手段より離接され、カセットを抜くことが出来る状態と
なる。When removing the cassettes 1 to 8 from the apparatus main body 8, the operating lever 20 is rotated clockwise about the bin 21, and the lever 47 interlocked with the link 5O is rotated clockwise. A pin 49 fixed to the lever 47 engages with the lever 26 to rotate the lever 26 clockwise about the shaft 14. Accordingly, the shaft 14 is rotated, the pressure member 11 is rotated against the force of a spring (not shown), and when the pressure member 11 is positioned below the bottom of the cassette, the lock claw 28 is rotated. The locking receiver whose tip end portion 30 is fitted onto the shaft 14 engages with the abbreviated cut portion of the member 25, the pressure member 11 is locked below the bottom of the cassette, and the copy paper is transferred to the feeding means. The cassette is now in a state where the cassette can be removed.
次にカセット装填動作に伴って第１の解除手段を作動さ
せるカセット装填動作について説明する。Next, a cassette loading operation in which the first release means is actuated in conjunction with the cassette loading operation will be described.
カセット底部をカセット載置台９上に沿わせて前進させ
ると、カセット前壁５３がカセット載置台を折り曲げて
なす面５４に当る直前にカセット前方側壁部に設けたカ
ム６がカセット検知突子３９に当接し、カセット検知突
子３９を時計方向回転に回転させた時にアーム３１をピ
ン３６を中心として時計方向に回転させる。そしてリン
ク４１により機械的にレバー３１をピン２７を中心とし
て反時計方向へ回転させ、一体内に回動するよう設けら
れたロック爪２８を反時計方向へ回転させるように働き
、ロック爪２８の先端部３Ｏカ係止受は部材２５の係合
部から解き放たれるとともに、加圧部材１１はバネ（図
示せず）−１１−
の蓄勢力にＪ：り押上げられ、複写紙受は板２を介して
堆積せる複写紙最上位を給送手段１０に圧接せしめ複写
準備を完了する。When the cassette bottom is moved forward along the cassette mounting table 9, the cam 6 provided on the front side wall of the cassette hits the cassette detection protrusion 39 just before the cassette front wall 53 hits the surface 54 formed by bending the cassette mounting table. When they come into contact and rotate the cassette detection projection 39 clockwise, the arm 31 is rotated clockwise about the pin 36. The link 41 mechanically rotates the lever 31 counterclockwise about the pin 27, which acts to rotate the lock pawl 28, which is provided to rotate within the unit, counterclockwise. The tip end portion 3O is released from the engaging portion of the member 25, and the pressure member 11 is pushed up by the stored force of the spring (not shown) -11-, and the copy paper receiver is pushed up by the plate. 2, the uppermost copy sheet to be stacked is brought into pressure contact with the feeding means 10, and preparation for copying is completed.
次に操作レバー２０の復帰動作に伴って第２の解除手段
を作動させる動作について説明する。加圧部材１１をカ
セット底部より下方へ位置せしめカセットに堆積しであ
る複写紙と違うサイズの複写紙に複写をする時には、サ
イズが複写紙の搬送方向に対して直角方向と共通辺を持
つ複写紙（たとえば、８４版の短辺と８５の長辺のよう
に〕であれば、カセットに堆積しである複写紙の上に重
ねて堆積させ、又、前記サイズに共通辺を有しない複写
紙に複写をする時には、カセットを装置本体８より抜き
出さずにすでにカセットに堆積しである複写紙をカセッ
トから抜き取った後、所用の複写紙を堆積させる。しか
るのち、操作レバー２Ｏを元の位置に回動させると、操
作レバー２Ｏの復帰動作と伴ってリンク５０に設けた突
起部５２が、レバー３１に設けた略し字状をなす折曲げ
部５１に係合し、ピン２７を中心としてレバー３１を反
時計方向に回転さ−１２−
せ、レバー３１と一体的に回動するよう設けであるロッ
ク爪２Ｂを反時計方向に回動さぜ、ロック爪２８の先端
部３０を係止受は部材２５の係合部から解き放つととも
に、加圧部材１１はバネ（図示せず）の蓄勢力に押上げ
られ、複写受は板２を堆積せる複写紙綴、Ｆ位を給送手
段１０に圧接せしめ複写準備を完了する。Next, the operation of operating the second release means in conjunction with the return operation of the operating lever 20 will be described. When copying paper of a different size from the copy paper stacked in the cassette by positioning the pressure member 11 below the bottom of the cassette, copy paper whose size has a common side with the direction perpendicular to the conveyance direction of the copy paper is used. If the paper (for example, the short side of the 84 plate and the long side of the 85 plate) is stacked on top of the copy paper that is stacked in the cassette, or the copy paper that does not have a common side in the size mentioned above When making a copy, the copy paper already deposited in the cassette is removed from the cassette without removing the cassette from the main body 8 of the apparatus, and then the desired copy paper is stacked.Then, return the operating lever 2O to the original position. When the operating lever 2O is rotated to its original position, the projection 52 provided on the link 50 engages with the bent portion 51 provided on the lever 31, and the lever rotates around the pin 27. 31 in the counterclockwise direction, and the lock claw 2B, which is provided to rotate integrally with the lever 31, is rotated counterclockwise to lock the tip 30 of the lock claw 28 into the locking position. is released from the engaging portion of the member 25, the pressure member 11 is pushed up by the stored force of a spring (not shown), and the copy receiver is moved to the feeding means 10 for copy paper stacking and position F on which the plate 2 is stacked. to complete the preparation for copying.
以上のように本実施例によれば、加圧部４４１１をカセ
ット底部より下方に係止するロック爪２８と一体的に回
動するレバー３１を介在させたことによりカセット装填
動作による加圧部材の係止解除手段と操作レバー２０の
復帰動作による加圧部材の係止解除手段の二通りの方法
を実現している。As described above, according to this embodiment, the lever 31 that rotates integrally with the lock claw 28 that locks the pressure member 4411 below the bottom of the cassette is interposed, so that the pressure member 4411 is moved by the cassette loading operation. Two methods are realized: a lock release means and a lock release means for the pressurizing member by the return operation of the operating lever 20.
さらに第３図に示すように操作レバー２０を公知の定着
装置４２を構成する加熱ローラ４５と押圧ローラ４６を
離接する働きを持たせである離接操作レバー５３の復帰
動作に操作レバー２Ｏが追動しないよう構成することに
より、定着器での紙ジヤム時には離接操作レバー５３を
回動させることにより、たとえば離接操作レバー５３に
設【プた曲面をなす突起部−１３−
５６が操作レバー２０の上面部５７を押し下げ操作レバ
ー２０を回動１ぎしめることにより、装置本体に設けた
カセッ１〜内の複写紙有無検知センサー５４のアクチュ
エータ５５から複写紙が離れ複写紙有無センサーはＯＦ
Ｆとなる。紙ジヤム処理後、離接操作レバー５３の復帰
がなされないまま複写動作を行ったら、複写紙上のトナ
ーは加熱がなされないので未定着となり然だ複写状態の
悪いものとなる。即ち、離接操作レバー５３と操作レバ
ー２０とを連動することにより、複写紙有無センサーの
ＯＦＦ信号をもって装置の複写動作を停止させる働きを
持たせ、定着器に取りつけられるべきセンサーが不要と
なるとともに未定着の複写を行うのを防止し、又加熱ロ
ーラと押圧ローラが離接されたまま定着の複写紙を通す
と加熱ローラを汚すことにもなり、次に複写を行う時に
は然だ複写状態が悪いものとなる。これらを防１卜する
役目を持たせられるという効果が得られるものである。Further, as shown in FIG. 3, the operating lever 20 is moved in response to the return movement of the separating/separating operating lever 53, which has the function of moving the heating roller 45 and the pressing roller 46 of the known fixing device 42 into and out of contact with each other. By configuring it so that it does not move, when the paper jams in the fixing device, by rotating the contact/separation operation lever 53, for example, the curved protrusion -13-56 installed on the contact/separation operation lever 53 can be used as the operation lever. By pushing down the upper surface part 57 of the 20 and tightening the operating lever 20 by one rotation, the copy paper is separated from the actuator 55 of the copy paper presence/absence detection sensor 54 in the cassettes 1 to 1 provided in the main body of the apparatus, and the copy paper presence/absence sensor is turned off.
It becomes F. If a copying operation is performed without returning the contact/separation operation lever 53 after paper jam processing, the toner on the copy paper will not be heated and will not be fixed, resulting in poor copy quality. That is, by interlocking the separation operation lever 53 and the operation lever 20, the copying operation of the apparatus is stopped by the OFF signal of the copy paper presence/absence sensor, thereby eliminating the need for a sensor to be attached to the fixing device. This prevents unfixed copies from being made, and also prevents the heating roller from getting dirty if the fixing copy paper is passed through with the heating roller and pressure roller separated, so that the copying state will not be as expected the next time the copy is made. It becomes bad. This has the effect of being able to serve as a defense against these.
発明の効果
以上、説明のように本発明のカセット方式給紙−１４−
装置は、カセットとカセットの複写紙底部を押上げて複
写紙最上位を給送手段に圧接させるよう回動自在に取り
つけられバネで付勢された加圧部材と、加圧部材を操作
レバーの回動に伴って複写紙を給送手段から離接させカ
セット底部より下方へ係止する係止手段と、カセットに
設けたカム面によりカセット装填動作に伴って係＋ｈ手
段の係合を解除させる第１の解除手段と、前記係止手段
と連動されてなる第２の解除手段とを有し、カセットの
装頃勅作により第１の手段を作動させ、操作レバーの復
帰動作に連動させて第２の解除手段を作動させ加圧部材
を上記所定位置へ復帰させるように構成しているので、
カセットに堆積してあ、る複写紙の搬送方向に対して垂
直方向のサイズと共通辺を持つサイズ、例えｌ１ｆＡ３
版の短辺とへ４版の長辺、あるいは８４版の短辺と８５
版の長辺のような関係にある複写紙に複写をする時には
、カセットに堆積しである複写紙の上に重ねて堆積させ
て操作レバーを復帰させるだけでよく、わざわざカセッ
トを扱き出して堆積しである複写紙を入れ−１５−
換えて再装盾Ｊる必要もなしに複写準備を完了できる。As described above, the cassette-type paper feeding device of the present invention is rotatably mounted so as to push up the cassette and the bottom of the copy paper in the cassette and press the topmost copy paper against the feeding means. a pressing member biased by a spring; a locking means for moving the pressing member toward and away from the feeding means and locking the copy paper downward from the bottom of the cassette as the operating lever rotates; It has a first release means that releases the engagement of the locking means with the cassette loading operation by a cam surface, and a second release means that is interlocked with the locking means. The first means is activated by the operation, and the second release means is activated in conjunction with the return operation of the operating lever to return the pressure member to the predetermined position.
A size that has a common side with the size in the direction perpendicular to the conveyance direction of the copy paper stacked in the cassette, for example l1fA3
The short side of the 4th edition, or the short side of the 84th edition and the 85th edition.
When copying onto copy paper that is in a relationship such as the long side of a plate, all you have to do is stack the paper stacked in the cassette on top of the copy paper and then return the operating lever. Copying preparations can be completed without the need to insert new copy paper and reload it.
即ち、従来のにうにカセット用いながら手差し給紙に相
当する使い方を可能にするという優れた効果が得られる
。That is, an excellent effect can be obtained in that it is possible to use the conventional paper cassette in a manner equivalent to manual paper feeding.
また、操作レバーを、定着装置を構成する加熱ローラと
押圧ローラとを離接させる離接操作レバー動作に追動し
、離接操作レバーの復帰動作には操作レバーが追動しな
いように構成したばあいには、構成簡単にして未定着の
複写を防止でき、加熱ローラと押圧Ｏ−ラが離接された
ままの未定着の複写紙を通ずと加熱ローラを汚すことに
なり、次に複写を行う時に複写状態が悪いものとなるが
、本発明ではこのような事態も回避できるものである。Further, the control lever is configured to follow the movement of the separation control lever that brings the heating roller and the pressure roller that constitute the fixing device into contact with each other, but not to follow the return movement of the separation control lever. In such cases, unfixed copying can be prevented by simplifying the configuration, and if the heating roller and the pressure roller are separated from each other and the unfixed copy paper is passed through, the heating roller will be contaminated. When a copy is made, the copying state becomes poor, but the present invention can avoid such a situation.
第１図は本発明に係るカセットの斜視図、第２図は給紙
装置の要部断面側面図、第３図は操作レバーと定着操作
レバーとの動作構成を示す要部側面図、第４図は給紙装
置の要部側面図、第５図は係止受（１部材とロック爪構
成を示す要部拡大側面一 １６ ＝
図である。
１・・・カセット本体箱、２・・・複写紙受は板、１０
・・・第１の給送手段、１１・・・加圧部材、１２・・
・重送防止手段、２０・・・操作レバー、２５・・・係
止受は部材、２８・・・ロック爪、３１・・・レバー、
３１・・・アーム、３９・・・検知突子、４１・・・リ
ンク、４２・・・定＠装置、４５・・・加熱ローラ、４
６・・・押圧ローラ、５３・・・離接操作レバー、５４
・・・複写紙有無検知センサー、５５・・・アクチュエ
ータ代理人 森 本 義 弘
−１７−FIG. 1 is a perspective view of a cassette according to the present invention, FIG. 2 is a sectional side view of a main part of a paper feeding device, FIG. 3 is a side view of a main part showing the operational configuration of an operating lever and a fixing operating lever, and FIG. The figure is a side view of the main parts of the paper feeding device, and FIG. The copy paper tray is a board, 10
...first feeding means, 11...pressure member, 12...
・Double feed prevention means, 20...operation lever, 25...locking receiver is member, 28...lock claw, 31...lever,
31... Arm, 39... Detection protrusion, 41... Link, 42... Constant @ device, 45... Heating roller, 4
6... Press roller, 53... Separation operation lever, 54
... Copy paper presence detection sensor, 55 ... Actuator agent Yoshihiro Morimoto-17-
Claims (1)
複写紙最上位を給゛送手段に圧接させるよう回動自在で
バネによつて付勢された加圧部材と、この・加圧部材を
操作レバーの回動′に伴つて複写紙を給送手段□から離
接させ前記カセシト底部より下方へ係止する係止手段と
、前記カセットに設けたカムによりカセットの□装填動
作・に１・伴って係止手段の係合を解除させる第１の゛
解除手段と、前記係止手段と連動させてなる゛第２の解
除手段とを有し、カセットの装填動作により第１の解除
手段を作動させ、・ 操作レバーの復帰動作に連動させ
て第２の解除手段を作動させ、加圧部材を所定位置に復
帰させるよう構成したカセット方式給紙装置。 ２、操作レバーを、定着装装置を構成する加熱ローラと
押圧゛ローラとを離接させる離接操作レ−１− バー動作に）ｆ、１動して離接操作レバーの復帰動作に
は操作レバーが追動しないよう構成したことを特徴とす
る特許請求の範囲第１項記載のカセット方式給紙装置。[Scope of Claims] 1. A cassette, and a pressure member that is rotatable and biased by a spring so as to push up the bottom of the copy paper in the cassette and press the topmost copy paper against the feeding means. , a locking means for moving the copy paper toward and away from the feeding means □ and locking the pressure member downward from the bottom of the cassette as the operating lever rotates, and a cam provided on the cassette to move the cassette □It has a first release means that releases the engagement of the locking means in accordance with the loading operation, and a second release means that is interlocked with the locking means, and the cassette loading operation A cassette type sheet feeding device configured to operate the first release means in conjunction with the return operation of the operating lever, and to operate the second release means in conjunction with the return operation of the operating lever to return the pressure member to a predetermined position. 2. Move the operating lever 1-1 to move the operating lever to move the heating roller and press roller that make up the fixing device into and out of contact with each other. The cassette type sheet feeding device according to claim 1, characterized in that the lever is configured not to follow the lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58240406A JPS60132844A (en) | 1983-12-19 | 1983-12-19 | Cassette-type sheet feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58240406A JPS60132844A (en) | 1983-12-19 | 1983-12-19 | Cassette-type sheet feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60132844A true JPS60132844A (en) | 1985-07-15 |
Family
ID=17058988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58240406A Pending JPS60132844A (en) | 1983-12-19 | 1983-12-19 | Cassette-type sheet feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60132844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6296230A (en) * | 1985-10-22 | 1987-05-02 | Mita Ind Co Ltd | Paper feeder in image recording device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141631A (en) * | 1977-05-17 | 1978-12-09 | Ricoh Co Ltd | Bottom plate push-up mechanism of sheet cassette in paper feeder |
-
1983
- 1983-12-19 JP JP58240406A patent/JPS60132844A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141631A (en) * | 1977-05-17 | 1978-12-09 | Ricoh Co Ltd | Bottom plate push-up mechanism of sheet cassette in paper feeder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6296230A (en) * | 1985-10-22 | 1987-05-02 | Mita Ind Co Ltd | Paper feeder in image recording device |
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