JP2001058751A - Sheet discharge mechanism of printing device - Google Patents
Sheet discharge mechanism of printing deviceInfo
- Publication number
- JP2001058751A JP2001058751A JP11231558A JP23155899A JP2001058751A JP 2001058751 A JP2001058751 A JP 2001058751A JP 11231558 A JP11231558 A JP 11231558A JP 23155899 A JP23155899 A JP 23155899A JP 2001058751 A JP2001058751 A JP 2001058751A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet
- urging
- printing apparatus
- ejection mechanism
- 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.)
- Granted
Links
Landscapes
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、印刷装置から用紙
を排出する排紙機構に係り、特に用紙をＷ字状に湾曲さ
せて見かけ上の剛性を高めて排出する排紙機構に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper discharge mechanism for discharging paper from a printing apparatus, and more particularly, to a paper discharge mechanism for discharging paper by bending the paper in a W-shape to increase apparent rigidity.
【０００２】[0002]
【従来の技術】印刷装置で印刷された用紙を排紙するに
際して、用紙の両側縁を上方へ持ち上げるように傾斜し
た面に沿わせて用紙を送り出し、用紙をＵ字状（排紙方
向に直交する断面で見た形状）に湾曲させて排紙方向の
見かけ上の剛性、所謂腰の強さを高めることによって、
用紙先端の垂れ下がりを生じさせずに排紙トレイ上に用
紙を着地させる技術が特公昭５８−４６４２８号公報に
開示されている。2. Description of the Related Art When a sheet printed by a printing apparatus is discharged, the sheet is fed along an inclined surface so that both side edges of the sheet are lifted upward, and the sheet is U-shaped (perpendicular to the sheet discharging direction). To increase the apparent rigidity in the paper discharge direction, the so-called waist strength.
Japanese Patent Publication No. 58-46428 discloses a technique for landing a sheet on a sheet discharge tray without causing the leading edge of the sheet to sag.
【０００３】また、特公平８−２２７１０号公報には、
用紙の見かけ上の剛性をさらに高めるために、用紙の両
側縁を上方へ持ち上げる傾斜面に加えて、さらに排出用
紙の中央部を、下から上方へ突出している***部材に沿
わせるように送り出すことによって、排紙方向に直交す
る断面で見てＷ字状に湾曲させる技術が開示されてい
る。また、特開平６−２３９０００号あるいは特開平６
−２３９００１号の公報には、用紙サイズなどの用紙の
種類に関する情報を取り込み、それに応じてＷ字状に湾
曲させる技術も開示されている。[0003] Also, Japanese Patent Publication No. 8-22710 discloses that
In order to further increase the apparent rigidity of the paper, in addition to the inclined surface that lifts both side edges of the paper upward, the central portion of the discharged paper is further fed along the raised member that projects upward from below. Discloses a technique for bending the sheet into a W shape when viewed in a cross section orthogonal to the sheet discharge direction. Further, JP-A-6-2399000 or JP-A-6-2396000
Japanese Patent Publication No. 239001 also discloses a technique of taking in information about a paper type such as a paper size and bending the information into a W-shape accordingly.
【０００４】[0004]
【発明が解決しようとする課題】上述のように、用紙を
Ｕ字状に湾曲させる技術については、適度な厚さを有す
る用紙を用いる場合には有効であるが、厚さが薄くて腰
の殆どない用紙の場合には、剛性を高めるという目的に
対しては不十分である。また、用紙をＷ字状に湾曲させ
る技術については、逆に、比較的強い腰の用紙を用いる
場合には、用紙がＷ字型に湾曲せず、用紙が比較的平坦
な状態のまま傾いて送り出されるという不具合があっ
た。As described above, the technique of bending paper into a U-shape is effective when using paper having an appropriate thickness. In the case of almost no paper, it is insufficient for the purpose of increasing rigidity. On the other hand, regarding the technique of bending a sheet into a W-shape, on the contrary, when a sheet having a relatively strong waist is used, the sheet does not bend in a W-shape, and the sheet is inclined while remaining relatively flat. There was a problem of being sent out.
【０００５】また、特開平６−２３９０００号や特開平
６−２３９００１号の公報に記載されたように、用紙の
種類を入力するための入力装置を用いる場合には、駆動
制御部周辺の構成要素も大きくなり、またコストも高く
なってしまう。[0005] As described in JP-A-6-2399000 and JP-A-6-239001, when an input device for inputting the type of paper is used, components around the drive control unit are used. And the cost increases.
【０００６】本発明は、上述のような従来技術の問題点
に鑑み、これを有効に解決すべく創案されたものであ
る。したがって本発明の目的は、腰の強さが異なる各種
用紙の違いに対して簡単な構成で対応でき、腰の殆どな
い用紙の場合には用紙をＷ字状に湾曲させて十分に剛性
を高めることができ、逆に、比較的強い腰の用紙を用い
る場合には用紙をＷ字状ではなくＵ字状に湾曲させられ
る印刷装置の排紙機構を提供することにある。The present invention has been made in view of the above-mentioned problems of the prior art, and has been devised to effectively solve the problems. Therefore, an object of the present invention is to cope with the difference between various types of paper having different stiffness with a simple configuration. In the case of a paper having almost no stiffness, the paper is curved in a W shape to sufficiently increase rigidity. On the contrary, it is an object of the present invention to provide a paper ejection mechanism of a printing apparatus that can bend a sheet into a U-shape instead of a W-shape when a relatively strong stiff sheet is used.
【０００７】[0007]
【課題を解決するための手段】本発明に係る印刷装置の
排紙機構の第１の形態は、上述のような課題を解決する
ために以下のような特徴的構成を備えている。すなわ
ち、印刷の済んだ用紙を印刷部から用紙受け部へ搬送す
る用紙搬送手段を備えた印刷装置の排紙機構において、
上記用紙搬送手段上を搬送される用紙の幅の大略両側縁
に対応する位置にて、該用紙の両側縁を沿わせて上方へ
持ち上げるように案内する傾斜ガイド部材と、上記用紙
搬送手段上を搬送される用紙の幅の大略中央に対応する
位置にて、該用紙搬送手段の搬送面より下方から上方へ
出没可能に突出する***部材と、上記***部材を突出方
向へ付勢する付勢手段とを備えており、上記付勢手段の
付勢力は、上記用紙搬送手段上を搬送される用紙の腰の
強さに応じて上記***部材を出没させるように設定され
る。A first embodiment of a paper discharge mechanism of a printing apparatus according to the present invention has the following characteristic configuration in order to solve the above-mentioned problems. That is, in a paper discharge mechanism of a printing apparatus including a paper transport unit that transports printed paper from a printing unit to a paper receiving unit,
At a position corresponding to substantially both side edges of the width of the sheet conveyed on the sheet conveying means, an inclined guide member for guiding the sheet to be lifted up along both side edges thereof, and A protruding member that protrudes upward and downward from below the conveying surface of the sheet conveying means at a position corresponding to substantially the center of the width of the conveyed sheet; and urging means that urges the protruding member in the protruding direction. The urging force of the urging means is set so as to make the raised member protrude and retract according to the stiffness of the paper conveyed on the paper conveying means.
【０００８】上記用紙搬送手段は、上記印刷済み用紙を
搬送面に吸着させるべく空気を吸引する吸引手段を備え
たベルトコンベアであるのが好ましい。It is preferable that the paper conveying means is a belt conveyor provided with a suction means for sucking air so that the printed paper is adsorbed on the conveying surface.
【０００９】上記付勢手段は、付勢力が可変に調整可能
であるのが好ましい。また、上記***部材は、上記用紙
搬送手段の搬送面からの突出高さが可変に調整可能であ
るのが好ましい。さらに、***部材は没入状態に固定で
きるのが好ましい。Preferably, the urging means is capable of variably adjusting the urging force. Further, it is preferable that the height of the protruding member protruding from the conveying surface of the sheet conveying means is variably adjustable. Further, it is preferred that the raised member can be fixed in a immersed state.
【００１０】また、本発明に係る印刷装置の排紙機構の
第２の形態は、印刷の済んだ用紙を印刷部から用紙受け
部へ搬送する用紙搬送手段を備えた印刷装置の排紙機構
において、上記用紙搬送手段上を搬送される用紙の幅の
大略両側縁に対応する位置にて、該用紙の両側縁を沿わ
せて上方へ持ち上げるように案内する傾斜ガイド部材
と、上記用紙搬送手段上を搬送される用紙の幅の方向に
少なくとも２以上設けられて、該複数の***部材が搬送
方向の中心線に対称に配置されて、該用紙搬送手段の搬
送面より下方から上方へ出没可能に突出する***部材
と、上記***部材を突出方向へ付勢する付勢手段とを備
えており、上記付勢手段の付勢力は、上記用紙搬送手段
上を搬送される用紙の腰の強さに応じて上記***部材を
出没させるように設定される。According to a second aspect of the present invention, there is provided a paper ejection mechanism for a printing apparatus including a paper transport unit for transporting printed paper from a printing unit to a paper receiving unit. An inclined guide member that guides the paper to be lifted up along both side edges thereof at positions corresponding to substantially both side edges of the width of the paper conveyed on the paper conveyance unit; Is provided at least two in the width direction of the sheet to be conveyed, and the plurality of raised members are arranged symmetrically with respect to the center line in the conveying direction, so that they can protrude and retract from below the conveying surface of the sheet conveying means. A protruding protruding member, and urging means for urging the protruding member in the protruding direction, wherein the urging force of the urging means is determined by the strength of the waist of the paper conveyed on the paper conveying means. Set to protrude or protrude the raised member according to It is.
【００１１】この場合も、上記用紙搬送手段は、上記印
刷済み用紙を搬送面に吸着させるべく空気を吸引する吸
引手段を備えたベルトコンベアであるのが好ましい。Also in this case, it is preferable that the paper conveying means is a belt conveyor provided with a suction means for sucking air so that the printed paper is adsorbed on the conveying surface.
【００１２】上記付勢手段も、付勢力が可変に調整可能
であるのが好ましい。また、上記***部材も、上記用紙
搬送手段の搬送面からの突出高さが可変に調整可能であ
るのが好ましい。さらにこの場合も、***部材は、任意
の***部材を没入状態に固定できるのが好ましい。It is preferable that the urging means can also adjust the urging force variably. Further, it is preferable that the height of the protruding member from the conveying surface of the sheet conveying means can be variably adjusted. Also in this case, it is preferable that the protruding member can fix any protruding member in the immersion state.
【００１３】また、本発明に係る印刷装置の排紙機構の
第３形態は、印刷の済んだ用紙を印刷部から用紙受け部
へ搬送する用紙搬送手段を備えた印刷装置の排紙機構に
おいて、上記用紙搬送手段上を搬送される用紙の幅の方
向に少なくとも２以上設けられて、該複数の***部材が
搬送方向の中心線に対称に配置されて、該用紙搬送手段
の搬送面より下方から上方へ出没可能に突出する***部
材と、上記***部材を突出方向へ付勢する付勢手段とを
備えており、上記付勢手段の付勢力は、上記用紙搬送手
段上を搬送される用紙の腰の強さに応じて上記***部材
を出没させるように設定される。According to a third aspect of the present invention, there is provided a paper ejection mechanism for a printing apparatus, comprising: a paper transport unit configured to transport printed paper from a printing unit to a paper receiving unit. At least two or more are provided in the width direction of the paper conveyed on the paper conveyance means, and the plurality of raised members are arranged symmetrically with respect to the center line in the conveyance direction, from below the conveyance surface of the paper conveyance means. A protruding member that protrudes upwardly and retractably; and urging means for urging the protruding member in a protruding direction, wherein the urging force of the urging means is a force of the paper conveyed on the paper conveying means. The protruding member is set to protrude and retract according to the strength of the waist.
【００１４】第３形態においても、用紙搬送手段は、上
記印刷済み用紙を搬送面に吸着させるべく空気を吸引す
る吸引手段を備えたベルトコンベアであるのが好まし
い。Also in the third embodiment, it is preferable that the sheet conveying means is a belt conveyor provided with a suction means for sucking air so that the printed sheet is adsorbed on the conveying surface.
【００１５】同様に上記付勢手段は、付勢力が可変に調
整可能であるのが好ましい。また、上記***部材も、上
記用紙搬送手段の搬送面からの突出高さが可変に調整可
能であるのが好ましい。さらに同様に、***部材は、任
意の***部材を没入状態に固定できるのが好ましい。Similarly, it is preferable that the urging means can variably adjust the urging force. Further, it is preferable that the height of the protruding member from the conveying surface of the sheet conveying means can be variably adjusted. Further similarly, the raised member preferably can secure any raised member in a immersed state.
【００１６】[0016]
【発明の実施の形態】図１に、本発明に係る印刷装置の
排紙機構を正面側から見た斜視図を、また図２に、その
縦断面図を示す。印刷された用紙は、版胴（図示せず）
から剥されて用紙受けトレー（図示せず）へ排紙され
る。この排紙に際して、印刷済みの用紙は、搬送手段で
あるベルトコンベア１０上に載置されて搬送される。排
紙される印刷済み用紙は、図１の斜視図においては奥か
ら手前側へベルトコンベア１０上を搬送される。FIG. 1 is a perspective view of a paper discharge mechanism of a printing apparatus according to the present invention as viewed from the front side, and FIG. 2 is a longitudinal sectional view thereof. The printed paper is a plate cylinder (not shown)
And is discharged to a sheet receiving tray (not shown). At the time of this paper ejection, the printed paper is placed on a belt conveyor 10 which is a transport means and transported. The printed paper to be discharged is conveyed on the belt conveyor 10 from the back to the front in the perspective view of FIG.
【００１７】ベルトコンベア１０の内側には、図２に示
すように、吸引ボックス１２が配置されており、その中
に空気吸引用ファン１３が設けられている。ベルトコン
ベア１０には、図１に示すように多数の吸引開口１４
（図には部分的に表示している。）がベルト１１に形成
されており、空気吸引用ファン１３が運転されると吸引
開口１４から周辺の空気がベルト１１の下の吸引ボック
ス１２内へ引き込まれ、ベルト１１上の印刷済み用紙
は、この引き込みにより生じる吸引力によってベルト１
１に吸着されて搬送される。吸引ボックス１２の上端面
には、図１にベルト１１の下に仮想線で示すように開口
１５が形成されている。このように、排紙される印刷済
み用紙が搬送される搬送面は、実質的にはベルト１１の
面および吸引ボックス１２の上端面となる。As shown in FIG. 2, a suction box 12 is provided inside the belt conveyor 10, and an air suction fan 13 is provided therein. The belt conveyor 10 has a number of suction openings 14 as shown in FIG.
(Partially shown in the figure) is formed on the belt 11, and when the air suction fan 13 is operated, the surrounding air flows from the suction opening 14 into the suction box 12 below the belt 11. The printed paper on the belt 11 is drawn into the belt 1 by the suction force generated by the drawing.
1 and is conveyed. An opening 15 is formed in the upper end surface of the suction box 12 as shown by a virtual line below the belt 11 in FIG. As described above, the transport surface on which the discharged printed paper is transported is substantially the surface of the belt 11 and the upper end surface of the suction box 12.
【００１８】ベルトコンベア１０の両側方には、ベルト
コンベア１０上を搬送される用紙の側縁を持ち上げるよ
うに案内する斜面ガイド部材１６が取り付けられてい
る。すなわち、ベルトコンベア１０上を搬送される用紙
は、その両側縁が斜面ガイド部材１６の斜面に沿って案
内されるので、そのままの状態の用紙を搬送方向に直交
する断面形状で見ると、両端が上方へ撓んで所謂Ｕ字状
に湾曲する。なお、両斜面ガイド部材１６はそれぞれ支
点３９で回動可能に支持されており、用紙の大きさ（幅
寸法）に応じて互いの間の距離を拡げたり狭めたりでき
る。On both sides of the belt conveyor 10, there are attached slope guide members 16 for guiding the side edges of the paper conveyed on the belt conveyor 10 so as to lift them. That is, the paper conveyed on the belt conveyor 10 is guided along the slope of the slope guide member 16 at both side edges. It bends upward and curves in a so-called U-shape. The two slope guide members 16 are rotatably supported at fulcrums 39, and the distance between them can be increased or decreased according to the size (width) of the sheet.
【００１９】この構成例では、図１に示すように、ベル
トコンベア１０は、２本のベルト１１が幾分間隔をあけ
て配置されており、その間の略中央には、吸引ボックス
１２から上方へ突出する***部材１７が設けられてい
る。***部材１７は、図２に示すように、支点ピン１８
を中心にして回転可能なレバー部材からなっており、一
端がバネ１９によって係止されていて反時計方向へ回転
するように付勢されており、すなわちレバー部材の他端
が、吸引ボックス１２の上端面に形成されたスリット２
０から略三角形状に上方へ突出する***部材１７となっ
ている。また、吸引ボックス１２内に隠れているレバー
部材の先端部分は、スリット２０の周縁部分に当たって
おり、それ以上に回転しないように規制する係止部２１
となっている。In this configuration example, as shown in FIG. 1, in a belt conveyor 10, two belts 11 are arranged at a certain interval, and approximately in the center between them, an upward direction from a suction box 12 is provided. A protruding raised member 17 is provided. As shown in FIG. 2, the raised member 17 is provided with a fulcrum pin 18.
, And one end is locked by a spring 19 and urged to rotate counterclockwise. That is, the other end of the lever member is Slit 2 formed on the upper end surface
The raised member 17 protrudes upward from 0 in a substantially triangular shape. Further, the tip of the lever member hidden in the suction box 12 is in contact with the peripheral edge of the slit 20, and a locking portion 21 for restricting further rotation is not provided.
It has become.
【００２０】図３は、***部材１７を構成するレバー部
材と、その周辺構造の詳細を示す要部拡大図である。レ
バー部材を支点ピン１８の回りに反時計方向へ回転する
ように付勢するバネ１９の強さは、可変に調整すること
ができる。バネ１９の一端はレバー部材に係止されてお
り、他端は、図示の可動ブラケット２２に係止されてい
る。可動ブラケット２２は、その中間部分にビス２３と
螺合する雌ネジが形成された中間板部２４を有してお
り、ビス２３は吸引ボックス１２の一端に設けられた開
口に遊びをもって挿通されて頭部が開口周縁に係止され
ている。また、バネ１９の一端が係止された可動ブラケ
ット２２の一端と反対側の端部（折曲端部）２５も、吸
引ボックス１２の一端に設けられた別の開口に挿通され
て折り曲げられている。すなわちビス２３は、これを締
め込んだり緩めたりするに際して、吸引ボックス１２に
対しては頭部で引っ掛かった状態のまま自由に回転で
き、そのとき可動ブラケット２２は吸引ボックス１２に
よって回転が規制されているのでビス２３と供回りする
ことはなく、その結果、可動ブラケット２２は図の左右
方向に移動できる。可動ブラケット２２が図の右方向に
移動すると、バネ１９は延びて***部材１７を上方へ付
勢する付勢力は強くなり、逆に左方向へ移動すると付勢
力は弱まる。図１に示す開口２６は、ビス２３を回すド
ライバーの挿通口である。FIG. 3 is an enlarged view of a main part showing details of a lever member constituting the raised member 17 and its peripheral structure. The strength of the spring 19 for urging the lever member to rotate counterclockwise around the fulcrum pin 18 can be variably adjusted. One end of the spring 19 is locked by a lever member, and the other end is locked by a movable bracket 22 shown. The movable bracket 22 has an intermediate plate portion 24 formed with an internal thread screwed into the screw 23 at an intermediate portion thereof. The screw 23 is inserted with play into an opening provided at one end of the suction box 12. The head is locked on the periphery of the opening. Further, an end (bent end) 25 opposite to one end of the movable bracket 22 to which one end of the spring 19 is locked is inserted into another opening provided at one end of the suction box 12 and bent. I have. That is, when the screw 23 is tightened or loosened, the screw 23 can be freely rotated while being hooked on the suction box 12 with its head, and at this time, the rotation of the movable bracket 22 is restricted by the suction box 12. Therefore, the movable bracket 22 does not rotate with the screw 23, and as a result, the movable bracket 22 can move in the left-right direction in the figure. When the movable bracket 22 moves rightward in the drawing, the spring 19 extends, and the urging force for urging the protruding member 17 upward increases, and conversely, when the movable bracket 22 moves leftward, the urging force decreases. The opening 26 shown in FIG. 1 is an insertion opening for a driver for turning the screw 23.
【００２１】ベルトコンベア１０上を吸着状態で搬送さ
れてくる印刷済み用紙は、その幅方向の両端が斜面ガイ
ド部材１６に沿って持ち上げられ、さらに中央部が***
部材１７によって上方に持ち上げられる。したがって、
コンベアの搬送方向に直交する断面で用紙の形状を見る
と所謂Ｗ字状に湾曲した形状にされ、用紙の見かけ上の
剛性が高められて前端部分の垂れ下がりを防止できる。The printed paper conveyed on the belt conveyer 10 in a sucked state is lifted at both ends in the width direction along the slope guide member 16, and is further lifted upward at the center by the raised member 17. Therefore,
When the shape of the sheet is viewed in a cross section orthogonal to the conveying direction of the conveyor, the sheet is curved in a so-called W-shape, the apparent rigidity of the sheet is increased, and the front end portion can be prevented from sagging.
【００２２】印刷用紙の種類によって硬さが異なるが、
厚手の硬い用紙の場合には、***部材１７の持ち上げる
力が弱いと、ベルトコンベア１０に吸着されて搬送され
ている用紙の硬さ（腰の強さ）で***部材１７を押し下
げる力の方が勝り、用紙は不必要な変形をすることな
く、Ｕ字状に湾曲した適度な変形による適度な見かけ上
の剛性で排紙される。また、薄手の柔軟な用紙の場合に
は、***部材１７の持ち上げる力で上述のようにＷ字状
に湾曲した形状にされ、用紙の見かけ上の剛性が高めら
れて排紙されるので前端部分の垂れ下がりを防止でき
る。このように、バネ１９の弾性力を適宜調整すること
によって、***部材１７は用紙自体の硬さ（剛性）に応
じて用紙搬送面から出没するので、用紙の種類を表す情
報を制御装置に一々入力して***部材１７の突出を制御
することは必要なく、極めて簡単な構造と調整操作で各
種用紙に応じた適切な形状で排紙することができる。Although the hardness varies depending on the type of printing paper,
In the case of thick hard paper, if the lifting force of the raised member 17 is weak, the force of pushing down the raised member 17 by the hardness (lumbar strength) of the paper being attracted to the belt conveyor 10 and being conveyed is better. On the other hand, the sheet is discharged with an appropriate apparent rigidity due to an appropriate deformation curved in a U-shape without unnecessary deformation. Further, in the case of a thin flexible sheet, the sheet is formed into a W-shaped curve by the lifting force of the raised member 17 as described above, and the sheet is discharged with an increased apparent rigidity. Can be prevented from sagging. As described above, by appropriately adjusting the elastic force of the spring 19, the raised member 17 protrudes and retracts from the sheet conveying surface in accordance with the hardness (rigidity) of the sheet itself. It is not necessary to control the protrusion of the raised member 17 by inputting, and it is possible to discharge the paper in an appropriate shape according to various papers with a very simple structure and an adjusting operation.
【００２３】図４は、***部材１７の突出高さを可変に
調整できるようにした例を示す図であり、図３と同様に
要部を拡大して示す図である。この構成例では、レバー
部材の係止部２１に当接する箇所を吸引ボックス１２と
は別部材で構成し、吸引ボックス１２に取り付けた断面
Ｌ字型の金具２７を用いている。この金具２７は、吸引
ボックス１２に形成された上下に長い長穴２８に挿通し
たビス２９によって吸引ボックス１２に取り付け固定さ
れる。したがって、長穴２８内のビス２９の位置によっ
て金具２７の高さ位置を変えることができ、これに係止
部２１が当接して止まるレバー部材の突出高さを、すな
わち***部材１７の突出高さを可変に調整することがで
きる。この突出高さも、用紙の種類に応じて適宜決定す
ることができ、薄手の柔らかい用紙ほどＷ字状の湾曲を
大きくするのが見かけ上の剛性を高めるのに好都合であ
る。FIG. 4 is a view showing an example in which the protruding height of the protruding member 17 can be variably adjusted, and is an enlarged view of a main part as in FIG. In this configuration example, a portion of the lever member that comes into contact with the locking portion 21 is formed of a member different from the suction box 12, and an L-shaped fitting 27 attached to the suction box 12 is used. The metal fitting 27 is attached and fixed to the suction box 12 by a screw 29 inserted into a vertically long hole 28 formed in the suction box 12. Therefore, the height position of the metal fitting 27 can be changed by the position of the screw 29 in the elongated hole 28, and the protrusion height of the lever member at which the locking portion 21 comes into contact and stops, that is, the protrusion height of the raised member 17 Can be variably adjusted. The protruding height can also be appropriately determined according to the type of paper, and it is convenient to increase the W-shaped curvature of thin soft paper in order to increase apparent rigidity.
【００２４】また、上述の構成例では、搬送される用紙
の幅の略中央に１箇所だけ***部材１７を設けている
が、例えばベルトコンベア１０のベルト１１が細くて３
本またはそれ以上設けられる場合、用紙幅の中心に対し
て左右対称となるように複数の箇所に***部材１７を設
けてもよい。これは、特に用紙サイズが大きくなる場合
に有効である。また、そのように複数の***部材を設け
る場合には、用紙サイズに応じることは勿論であるが、
用紙の厚さないし硬さにも応じて任意の***部材を没入
状態に固定することも有効である。例えば、用紙はかな
り大きいサイズであるが幾分厚みのある用紙で多数の隆
起部材による多数箇所の湾曲変形が必要ない場合には、
突出する***部材の数を間引くことが好ましい。Further, in the above-described configuration example, the raised member 17 is provided only at one position substantially at the center of the width of the conveyed paper. For example, the belt 11 of the belt conveyor 10 is thin and 3
When books or more are provided, the raised members 17 may be provided at a plurality of locations so as to be symmetrical about the center of the sheet width. This is particularly effective when the paper size increases. In the case where a plurality of raised members are provided as described above, it is needless to say that the height depends on the paper size.
It is also effective to fix an arbitrary raised member in a submerged state according to the thickness or hardness of the sheet. For example, if the paper is of a fairly large size, but is rather thick, and does not require multiple bending deformations due to numerous raised members,
It is preferable to reduce the number of projecting raised members.
【００２５】図５は、***部材１７を没入状態に固定す
るための構成例を示す要部拡大図である。***部材１７
を構成するレバー部材の一方の先端には係止部２１が形
成されている。この係止部２１が当接する相手部材を、
上下に揺動して２位置で止まる選択レバー３０で構成し
ている。この２位置は、***部材１７が上方に突出する
のを許容する第１位置（図において実線で示す）と、隆
起部材１７を没入状態に固定する第２位置（図において
仮想線で示す）とである。FIG. 5 is an enlarged view of a main part showing an example of a structure for fixing the protruding member 17 in a retracted state. Raised member 17
An engaging portion 21 is formed at one end of the lever member that constitutes the above. The mating member with which the locking portion 21 contacts is
It comprises a selection lever 30 which swings up and down and stops at two positions. These two positions include a first position (shown by a solid line in the figure) that allows the protruding member 17 to protrude upward, and a second position (shown by an imaginary line in the figure) that fixes the protruding member 17 in a submerged state. It is.
【００２６】選択レバー３０は、略中央に揺動中心３１
を有しており、その揺動中心３１の近傍を通って掛け渡
される引張りバネ３２の一端が、選択レバー３０の一方
の端部に取付固定されている。引張りバネ３２の他端
は、吸引ボックス等の固定された構成要素の固定点３３
に取付固定されている。この固定点３３の位置は、選択
レバー３０が係止部２１に当接する上述の２位置の中間
に位置している。選択レバー３０がとる２位置の上下
に、選択レバー３０のそれ以上の回動を規制するストッ
パー３４，３５が設けられている。選択レバー３０が上
ストッパー３４に当たっている第１位置から、下ストッ
パー３５に当てっている第２位置へ回動するとき、引張
りバネ３２が選択レバー３０の揺動中心３１の上を通過
する。引張りバネ３２は、選択レバー３０の揺動中心３
１の上を通過するときが最も長く延ばされ、通過した後
は幾分短くなる。したがって選択レバー３０は、第１お
よび第２のそれぞれの位置で引張りバネ３２の弾性力に
よってストッパー３４，３５に押し付けられ、その位置
の姿勢で安定する。すなわち、***部材１７の係止部２
１をそれぞれの位置で受け止め、第１位置で***部材１
７が上方に突出するのを許容し、第２位置で***部材１
７を没入状態に固定する。The selection lever 30 has a swing center 31 substantially at the center.
One end of a tension spring 32 that extends around the center of swing 31 is attached and fixed to one end of the selection lever 30. The other end of the tension spring 32 is connected to a fixing point 33 of a fixed component such as a suction box.
It is attached and fixed. The position of the fixing point 33 is located in the middle of the above-described two positions where the selection lever 30 abuts on the locking portion 21. Above and below the two positions taken by the selection lever 30, stoppers 34 and 35 for restricting further rotation of the selection lever 30 are provided. When the selection lever 30 rotates from the first position, which is in contact with the upper stopper 34, to the second position, which is in contact with the lower stopper 35, the tension spring 32 passes over the swing center 31 of the selection lever 30. The tension spring 32 is provided at the pivot 3 of the selection lever 30.
1 is the longest when passing over it and somewhat shorter after passing. Therefore, the selection lever 30 is pressed against the stoppers 34 and 35 by the elastic force of the tension spring 32 at the first and second positions, and is stabilized at the position. That is, the locking portion 2 of the raised member 17
1 is received at each position, and the raised member 1 is received at the first position.
7 are allowed to protrude upward, and the raised members 1
7 is fixed in an immersive state.
【００２７】また、さらに別の変形として、傾斜ガイド
部材は設けずに、その位置に出没可能な***部材を配置
し、且つ全体として複数の***部材を用紙幅の中心に対
して左右対称となる箇所に設けることもできる。この場
合も、用紙サイズに応じて、また用紙の厚さないし硬さ
に応じて任意の***部材を没入状態に固定することが有
効である。例えば、用紙幅の両端と中央の３箇所に***
部材を設け、厚みがあって十分に硬い用紙を排紙する場
合には、***部材を３箇所とも没入状態に固定して用紙
本来の剛性だけで排紙するのが好ましい。その構成で全
く腰がない薄い用紙を排紙する場合には、３箇所とも隆
起部材を突出させておき、Ｗ字状に湾曲させて排紙する
ことができる。また、その中間程度の厚さ硬さの用紙の
場合には、両端の***部材を突出させるバネの付勢力を
強くしておき、中央の***部材のバネを弱くしておけ
ば、中央の***部材だけが用紙の固さで押し下げられて
Ｕ字状に湾曲させて排紙することができる。あるいは、
***部材の突出高さを、両端を高く中央を低くしておく
ことによっても、用紙をＵ字状に湾曲させて排紙するこ
とができる。さらには、Ｕ字状に湾曲させて排紙するの
が好ましい用紙であることが初めから分かっている場合
には、最初から中央の***部材だけを没入状態に固定し
ておくこともできる。また、３箇所以上に***部材を設
ける場合であっても、排紙時に用紙を湾曲させる適切な
形状を任意に選択することができる。Further, as another modification, a protruding member that can protrude and retract is disposed at that position without providing an inclined guide member, and the plurality of protruding members as a whole are symmetrical with respect to the center of the sheet width. It can also be provided at a location. In this case as well, it is effective to fix an arbitrary raised member in a submerged state according to the sheet size and the thickness or hardness of the sheet. For example, when a raised member is provided at three places at both ends and the center of the sheet width and a thick and sufficiently hard paper is ejected, the raised members are fixed at all three places in a submerged state and only the original rigidity of the sheet is obtained. It is preferable to discharge the paper. In the case of discharging a thin sheet having no stiffness in this configuration, the protruding members are projected at all three places, and the sheet can be discharged in a W-shaped curve. Also, in the case of paper having an intermediate thickness and hardness, it is possible to increase the urging force of the springs that protrude the protruding members at both ends, and to weaken the spring of the central protruding member. Only the member is pushed down by the hardness of the sheet, and can be discharged in a U-shaped curve. Or,
By setting the protruding height of the protruding member to be higher at both ends and lower at the center, the sheet can be curved in a U-shape and discharged. Furthermore, if it is known from the beginning that the paper is preferably curved and discharged in a U-shape, only the central raised member may be fixed in the immersion state from the beginning. In addition, even when three or more raised members are provided, it is possible to arbitrarily select an appropriate shape that bends the sheet when the sheet is discharged.
【００２８】なお、図２に示された４０，４１は、排紙
される印刷済み用紙の紙詰まり（ペーパージャム）を検
知する光学センサの投光部および受光部であり、図１に
示された４２は、その検知光のための透孔である。Reference numerals 40 and 41 shown in FIG. 2 are a light projecting portion and a light receiving portion of an optical sensor for detecting a paper jam (paper jam) of the printed paper to be discharged, and are shown in FIG. Reference numeral 42 denotes a through hole for the detection light.
【図１】 本発明に係る印刷装置の排紙機構を正面側か
ら見て示す斜視図である。FIG. 1 is a perspective view showing a paper discharge mechanism of a printing apparatus according to the present invention when viewed from the front side.
【図２】 図１の排紙機構の縦断面図である。FIG. 2 is a longitudinal sectional view of the sheet discharging mechanism of FIG.
【図３】 図２の***部材を構成するレバー部材と、そ
の周辺構造の詳細を示す要部拡大図である。FIG. 3 is an enlarged view of a main part showing details of a lever member constituting the raised member of FIG. 2 and a peripheral structure thereof.
【図４】 図２の***部材の突出高さを可変に調整でき
るようにするための構成例を示す要部拡大図である。FIG. 4 is an enlarged view of a main part showing a configuration example for variably adjusting a protruding height of a raised member of FIG. 2;
【図５】 図２の***部材を没入状態に固定するための
構成例を示す要部拡大図である。5 is an enlarged view of a main part showing a configuration example for fixing the raised member of FIG. 2 in a retracted state.
１０ ベルトコンベア １１ ベルト １２ 吸引ボックス １３ 空気吸引用ファン １４ 吸引開口 １５ ボックスの開口 １６ 斜面ガイド部材 １７ ***部材 １８ 支点ピン １９ バネ ２０ スリット ２１ 係止部 ２２ 可動ブラケット ２３ ビス ２４ 中間板部 ２５ 折曲端部 ２６ ドライバー挿通口 ２７ Ｌ字型金具 ２８ 長穴 ２９ ビス ３０ 選択レバー ３１ 揺動中心 ３２ 引張りバネ ３３ 固定点 ３４ ストッパー ３５ ストッパー ３９ 支点 ４０ 光学センサ ４１ 光学センサ ４２ 透孔 DESCRIPTION OF SYMBOLS 10 Belt conveyor 11 Belt 12 Suction box 13 Air suction fan 14 Suction opening 15 Box opening 16 Slope guide member 17 Raised member 18 Support pin 19 Spring 20 Slit 21 Locking portion 22 Movable bracket 23 Screw 24 Intermediate plate 25 Bending End 26 Driver insertion hole 27 L-shaped fitting 28 Long hole 29 Screw 30 Selection lever 31 Swing center 32 Tension spring 33 Fixed point 34 Stopper 35 Stopper 39 Support point 40 Optical sensor 41 Optical sensor 42 Through hole
Claims (15)
部へ搬送する用紙搬送手段（１０）を備えた印刷装置の
排紙機構において、 上記用紙搬送手段（１０）上を搬送される用紙の幅の大
略両側縁に対応する位置にて、該用紙の両側縁を沿わせ
て上方へ持ち上げるように案内する傾斜ガイド部材（１
６）と、 上記用紙搬送手段（１０）上を搬送される用紙の幅の大
略中央に対応する位置にて、該用紙搬送手段の搬送面よ
り下方から上方へ出没可能に突出する***部材（１７）
と、 上記***部材（１７）を突出方向へ付勢する付勢手段
（１９）とを備えており、 上記付勢手段（１９）の付勢力は、上記用紙搬送手段
（１０）上を搬送される用紙の腰の強さに応じて上記隆
起部材（１７）を出没させるように設定されることを特
徴とする印刷装置の排紙機構。1. A sheet discharging mechanism of a printing apparatus having a sheet conveying means (10) for conveying a printed sheet from a printing section to a sheet receiving section, wherein the sheet conveyed on the sheet conveying means (10). At a position corresponding to substantially both side edges of the width of the sheet, an inclined guide member (1) that guides the sheet to be lifted up along both side edges thereof.
6) and a raised member (17) projecting upward and downward from the transport surface of the paper transport means at a position corresponding to substantially the center of the width of the paper transported on the paper transport means (10). )
And an urging means (19) for urging the protruding member (17) in the protruding direction. The urging force of the urging means (19) is conveyed on the paper conveying means (10). A paper ejection mechanism for a printing apparatus, wherein the raised member (17) is set so as to protrude and retract according to the stiffness of the paper.
済み用紙を搬送面に吸着させるべく空気を吸引する吸引
手段（１２，１３，１４，１５）を備えたベルトコンベ
アである、請求項１記載の印刷装置の排紙機構。2. The sheet conveying means (10) is a belt conveyor provided with suction means (12, 13, 14, 15) for sucking air so that the printed sheet is adsorbed on a conveying surface. 2. A paper discharging mechanism of the printing apparatus according to claim 1.
に調整可能である、請求項１記載の印刷装置の排紙機
構。3. The paper ejection mechanism according to claim 1, wherein said urging means (19) is capable of variably adjusting an urging force.
手段（１０）の搬送面からの突出高さが可変に調整可能
である、請求項１記載の印刷装置の排紙機構。4. The paper ejection mechanism according to claim 1, wherein the height of the raised member from the conveyance surface of the paper conveyance means is variably adjustable.
できる、請求項１記載の印刷装置の排紙機構。5. The paper ejection mechanism according to claim 1, wherein said raised member (17) can be fixed in a retracted state.
部へ搬送する用紙搬送手段（１０）を備えた印刷装置の
排紙機構において、 上記用紙搬送手段（１０）上を搬送される用紙の幅の大
略両側縁に対応する位置にて、該用紙の両側縁を沿わせ
て上方へ持ち上げるように案内する傾斜ガイド部材（１
６）と、 上記用紙搬送手段（１０）上を搬送される用紙の幅の方
向に少なくとも２以上設けられて、該複数の***部材
（１７）が搬送方向の中心線に対称に配置されて、該用
紙搬送手段の搬送面より下方から上方へ出没可能に突出
する***部材（１７）と、 上記***部材（１７）を突出方向へ付勢する付勢手段
（１９）とを備えており、 上記付勢手段（１９）の付勢力は、上記用紙搬送手段
（１０）上を搬送される用紙の腰の強さに応じて上記隆
起部材（１７）を出没させるように設定されることを特
徴とする印刷装置の排紙機構。6. A paper discharge mechanism of a printing apparatus having a paper transport means (10) for transporting printed paper from a printing unit to a paper receiving unit, wherein the paper transported on the paper transport means (10) is provided. At a position corresponding to substantially both side edges of the width of the sheet, an inclined guide member (1) that guides the sheet to be lifted up along both side edges thereof.
6), and at least two or more raised members (17) are provided symmetrically about the center line in the transport direction, provided at least two or more in the width direction of the paper transported on the paper transport means (10); A protruding member (17) that protrudes upward and downward from below the conveying surface of the sheet conveying means, and an urging means (19) for urging the protruding member (17) in a protruding direction. The urging force of the urging means (19) is set so as to make the raised member (17) protrude and retract according to the stiffness of the paper conveyed on the paper conveying means (10). Paper ejection mechanism of the printing device.
済み用紙を搬送面に吸着させるべく空気を吸引する吸引
手段（１２，１３，１４，１５）を備えたベルトコンベ
アである、請求項６記載の印刷装置の排紙機構。7. The paper conveying means (10) is a belt conveyor provided with suction means (12, 13, 14, 15) for sucking air to adsorb the printed paper to a conveying surface. 7. The paper discharging mechanism of the printing apparatus according to 6.
に調整可能である、請求項６記載の印刷装置の排紙機
構。8. The paper ejection mechanism according to claim 6, wherein said urging means (19) is capable of variably adjusting an urging force.
手段（１０）の搬送面からの突出高さが可変に調整可能
である、請求項６記載の印刷装置の排紙機構。9. The paper ejection mechanism according to claim 6, wherein the height of the raised member from the conveyance surface of the paper conveyance means is variably adjustable.
部材（１７）が没入状態に固定できる、請求項６記載の
印刷装置の排紙機構。10. The paper ejection mechanism of a printing apparatus according to claim 6, wherein said raised member (17) can fix any raised member (17) in a retracted state.
け部へ搬送する用紙搬送手段（１０）を備えた印刷装置
の排紙機構において、 上記用紙搬送手段（１０）上を搬送される用紙の幅の方
向に少なくとも２以上設けられて、該複数の***部材
（１７）が搬送方向の中心線に対称に配置されて、該用
紙搬送手段の搬送面より下方から上方へ出没可能に突出
する***部材（１７）と、 上記***部材（１７）を突出方向へ付勢する付勢手段
（１９）とを備えており、 上記付勢手段（１９）の付勢力は、上記用紙搬送手段
（１０）上を搬送される用紙の腰の強さに応じて上記隆
起部材（１７）を出没させるように設定されることを特
徴とする印刷装置の排紙機構。11. A paper discharge mechanism of a printing apparatus having a paper transport means (10) for transporting printed paper from a printing unit to a paper receiving unit, wherein the paper transported on the paper transport means (10) is provided. At least two in the width direction, and the plurality of raised members (17) are arranged symmetrically with respect to the center line in the transport direction, and protrude from the transport surface of the paper transport means upward and downward from below. A protruding member (17); and an urging means (19) for urging the protruding member (17) in a protruding direction. The urging force of the urging means (19) is controlled by the paper transport means (10). A) a paper ejection mechanism of a printing apparatus, wherein the raised member (17) is set to protrude and retract according to the stiffness of the paper conveyed thereon.
刷済み用紙を搬送面に吸着させるべく空気を吸引する吸
引手段（１２，１３，１４，１５）を備えたベルトコン
ベアである、請求項１１記載の印刷装置の排紙機構。12. The paper conveying means (10) is a belt conveyor provided with suction means (12, 13, 14, 15) for sucking air to adsorb the printed paper to a conveying surface. 12. The paper ejection mechanism of the printing apparatus according to 11.
変に調整可能である、請求項１１記載の印刷装置の排紙
機構。13. The paper ejection mechanism according to claim 11, wherein said urging means (19) is capable of variably adjusting an urging force.
送手段（１０）の搬送面からの突出高さが可変に調整可
能である、請求項１１記載の印刷装置の排紙機構。14. The paper ejection mechanism of a printing apparatus according to claim 11, wherein a height of said raised member (17) protruding from a transport surface of said paper transport means (10) is variably adjustable.
部材（１７）が没入状態に固定できる、請求項１１記載
の印刷装置の排紙機構。15. The paper ejection mechanism of a printing apparatus according to claim 11, wherein said raised member (17) is capable of fixing an arbitrary raised member (17) in a retracted state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23155899A JP4159191B2 (en) | 1999-08-18 | 1999-08-18 | Paper discharge mechanism of printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23155899A JP4159191B2 (en) | 1999-08-18 | 1999-08-18 | Paper discharge mechanism of printing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001058751A true JP2001058751A (en) | 2001-03-06 |
| JP4159191B2 JP4159191B2 (en) | 2008-10-01 |
Family
ID=16925397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23155899A Expired - Fee Related JP4159191B2 (en) | 1999-08-18 | 1999-08-18 | Paper discharge mechanism of printing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4159191B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1127828A2 (en) * | 2000-02-22 | 2001-08-29 | Riso Kagaku Corporation | Sheet discharge unit |
| JP2009184793A (en) * | 2008-02-07 | 2009-08-20 | Duplo Seiko Corp | Paper delivery device |
| JP2009202953A (en) * | 2008-02-26 | 2009-09-10 | Duplo Seiko Corp | Paper delivering device |
| JP2010023988A (en) * | 2008-07-18 | 2010-02-04 | Kyocera Mita Corp | Ink-jet recording device |
| CN102855694A (en) * | 2012-09-21 | 2013-01-02 | 昆山古鳌电子机械有限公司 | Driving belt capable of correcting tilt of paper money |
| US8515332B2 (en) | 2008-05-29 | 2013-08-20 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having flapper |
| JP2016010897A (en) * | 2014-06-27 | 2016-01-21 | 京セラドキュメントソリューションズ株式会社 | Conveyor device and inkjet recording apparatus |
| EP4368405A1 (en) * | 2022-11-11 | 2024-05-15 | Ricoh Company, Ltd. | Open and close device, sheet conveyor, and image forming apparatus |
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| DK2440776T3 (en) | 2010-08-17 | 2015-08-24 | Artemis Intelligent Power Ltd | Liquid driven machine with multi-loop-ringkam |
| GB2484890A (en) | 2010-08-17 | 2012-05-02 | Artemis Intelligent Power Ltd | Ring cam ensuring smooth follower handover between segments |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1127828A2 (en) * | 2000-02-22 | 2001-08-29 | Riso Kagaku Corporation | Sheet discharge unit |
| EP1127828A3 (en) * | 2000-02-22 | 2003-02-12 | Riso Kagaku Corporation | Sheet discharge unit |
| US6701841B2 (en) | 2000-02-22 | 2004-03-09 | Riso Kagaku Corporation | Sheet discharge unit |
| JP2009184793A (en) * | 2008-02-07 | 2009-08-20 | Duplo Seiko Corp | Paper delivery device |
| JP2009202953A (en) * | 2008-02-26 | 2009-09-10 | Duplo Seiko Corp | Paper delivering device |
| US8210527B2 (en) | 2008-02-26 | 2012-07-03 | Duplo Seiko Corporation | Paper ejecting device with swinging protruding members |
| US8515332B2 (en) | 2008-05-29 | 2013-08-20 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having flapper |
| JP2010023988A (en) * | 2008-07-18 | 2010-02-04 | Kyocera Mita Corp | Ink-jet recording device |
| CN102855694A (en) * | 2012-09-21 | 2013-01-02 | 昆山古鳌电子机械有限公司 | Driving belt capable of correcting tilt of paper money |
| JP2016010897A (en) * | 2014-06-27 | 2016-01-21 | 京セラドキュメントソリューションズ株式会社 | Conveyor device and inkjet recording apparatus |
| EP4368405A1 (en) * | 2022-11-11 | 2024-05-15 | Ricoh Company, Ltd. | Open and close device, sheet conveyor, and image forming apparatus |
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| Publication number | Publication date |
|---|---|
| JP4159191B2 (en) | 2008-10-01 |
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