JPS6339498B2 - - Google Patents
Info
- Publication number
- JPS6339498B2 JPS6339498B2 JP58155735A JP15573583A JPS6339498B2 JP S6339498 B2 JPS6339498 B2 JP S6339498B2 JP 58155735 A JP58155735 A JP 58155735A JP 15573583 A JP15573583 A JP 15573583A JP S6339498 B2 JPS6339498 B2 JP S6339498B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- protrusion
- thickness
- feed tray
- handling
- 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
Links
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/12—Suction bands, belts, or tables moving relatively to the pile
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、複写機、フアクシミリ等に於ける真
空吸引式給紙装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum suction type paper feeding device for copying machines, facsimile machines, etc.
従来技術
給紙トレイの底面に、ブロワーの吸気作用によ
り最下層用紙を吸着して搬出する複数本の用紙搬
送ベルトを備えた給紙装置では、複数本の用紙搬
送ベルト間に、同用紙搬送ベルトの用紙吸着面よ
りも突出する紙さばき突起を配設している。この
紙さばき突起は、積層用紙を局部的に持上げる機
能を有し、その持上げられた部分の前端縁は、給
紙トレイ前面の壁体で規制されることになる。然
るに、搬出されるべき最下層用紙だけは、搬送ベ
ルトに吸着されるため、その前端縁が、本来紙さ
ばき突起により持上げられているはずの部分をも
含めて、給紙トレイ前面の壁体下方に形成された
用紙搬出口に臨み、搬送ベルトの移行に従つて、
用紙搬出口から搬出される訳である。Prior Art In a paper feeding device equipped with a plurality of paper conveyance belts on the bottom of a paper feed tray that sucks and carries out the bottom layer of paper using the suction action of a blower, the same paper conveyance belt is placed between the plurality of paper conveyance belts. A paper handling protrusion that protrudes beyond the paper suction surface is provided. This paper handling protrusion has a function of locally lifting the stacked paper, and the front edge of the lifted portion is regulated by the wall on the front surface of the paper feed tray. However, since only the lowest layer of paper to be carried out is attracted to the conveyor belt, its front edge, including the part that should originally be lifted by the paper separation protrusion, is below the wall in front of the paper feed tray. Facing the paper exit formed in the
This means that the paper is transported out from the paper exit.
ところが、従来の給紙装置では、紙さばき突起
が固定されているため、その突出量が一定であ
り、突出量を薄紙用に設定して置くと、厚紙を用
いた時にミス・フイード（用紙が搬出されないこ
と）が生じ、逆に突出量を厚紙用に設定して置く
と、薄紙を用いた時に重送（二枚以上の用紙が送
られること）が生じるという問題があつた。 However, in conventional paper feeding devices, the paper handling protrusion is fixed, so the amount of protrusion is constant, and if the protrusion amount is set for thin paper, it may cause misfeeds (paper misfeeds) when using thick paper. Conversely, if the protrusion amount was set for thick paper, double feeding (two or more sheets of paper being fed) would occur when thin paper was used.
発明の目的
本発明は、斯かる技術的背景の下に案出された
ものであつて、その目的とする処は、使用する用
紙の厚さを変更しても、ミス・フイード、重送が
生ずることなく、安定した用紙搬出が行われる給
紙装置を供する点にある。Purpose of the Invention The present invention was devised against this technical background, and its purpose is to prevent misfeeds and double feeds even if the thickness of the paper used is changed. The object of the present invention is to provide a paper feeding device that can carry out stable paper ejection without causing any problems.
発明の構成
本発明の給紙装置は、給紙トレイの底面に配設
された複数本の真空吸引式用紙搬送ベルト間に位
置する紙さばき突起を駆動手段Ｄにて進退させる
構造とし、使用する用紙の種類（厚さ）を厚さ設
定手段Ａをもつて、紙さばき突起の突出量決定手
段Ｂに入力し、同突出量決定手段Ｂからの用紙種
別（厚さ）情報信号を駆動手段Ｄ用動作制御手段
Ｃに与え、制御手段Ｃの制御信号にて駆動手段Ｄ
を動作せしめ、以つて紙さばき突起の突出量を調
整することを特徴としている（第１図参照）。Structure of the Invention The paper feeding device of the present invention has a structure in which a paper handling protrusion located between a plurality of vacuum suction type paper conveyance belts arranged on the bottom surface of a paper feeding tray is moved forward and backward by a driving means D, and is used. The paper type (thickness) is inputted to the protrusion amount determining means B of the paper handling protrusion using the thickness setting means A, and the paper type (thickness) information signal from the protrusion amount determining means B is sent to the driving means D. The control signal from the control means C drives the drive means D.
This feature is characterized in that the amount of protrusion of the paper handling protrusion is adjusted by operating the paper handling protrusion (see Fig. 1).
実施例
以下、第２図ないし第４図に示した本発明の一
実施例について説明する。Embodiment Hereinafter, an embodiment of the present invention shown in FIGS. 2 to 4 will be described.
第２図は、複写機、フアクシミリ等に於ける給
紙装置１の縦断側面図であり、給紙トレイ２の底
面に、真空吸引式搬送ベルト装置３が配設されて
いる。この真空吸引式搬送ベルト装置３は、駆動
ロール４および従動ロール５間に張設されるとと
もに、多数の吸気穴７を有する搬送ベルト６と、
同搬送ベルト６の裏面に開口する吸気室９と、同
吸気室９に連通するブロワー８とで構成されてい
る（第２図、第３図参照。但し、第３図は第２図
に於ける−線矢視図である）。 FIG. 2 is a longitudinal sectional side view of a paper feeder 1 in a copying machine, facsimile, etc., in which a vacuum suction conveyor belt device 3 is disposed on the bottom of a paper feed tray 2. As shown in FIG. This vacuum suction type conveyor belt device 3 includes a conveyor belt 6 stretched between a driving roll 4 and a driven roll 5 and having a large number of intake holes 7;
It is composed of an intake chamber 9 that opens on the back side of the conveyor belt 6, and a blower 8 that communicates with the intake chamber 9 (see FIGS. 2 and 3. However, FIG. ).
前記吸気室９の頂壁１０は、給紙トレイ２に於
ける前壁２Ａの下端縁に対して小間隔を置いて前
方へ伸長して搬送ガイド板１０ａになされ、同搬
送ガイド板１０ａに沿つて搬送された用紙が、搬
送ロール１７に案内される様になされている。 The top wall 10 of the intake chamber 9 extends forward at a small distance from the lower edge of the front wall 2A of the paper feed tray 2 to form a conveyance guide plate 10a, and extends along the conveyance guide plate 10a. The paper that has been conveyed along the rollers is guided by conveyance rolls 17.
又、一対の搬送ベルト６間のほぼ中央に位置し
て、頂壁１０に開口１１が形成され、同開口１１
部には、進退自在な紙さばき突起１４が配設され
ている。この紙さばき突起１４は、スクリユー１
５の頂部に相対回転自在に支持されている。スク
リユー１５は、頂壁１０の裏面に固定されたブラ
ケツト１２に付された雌螺子部１３に螺合し、且
つその下半部が中空になされ、ステツピングモー
ターＭの回転子軸１６とスプライン噛合してい
る。従つて、ステツピングモーターＭの作動によ
つて、回転子軸１６が回転するとスクリユー１５
が上昇、又は下降し、それに付随して紙さばき突
起１４も上、下動する（第４図参照。但し第４図
は第３図に於ける−線断面図である）。 Further, an opening 11 is formed in the top wall 10 at approximately the center between the pair of conveyor belts 6.
A paper handling protrusion 14 that can move forward and backward is provided in the section. This paper handling protrusion 14 is connected to the screw 1.
It is supported on the top of 5 so as to be relatively rotatable. The screw 15 is threaded into a female thread 13 attached to a bracket 12 fixed to the back surface of the top wall 10, and its lower half is hollow, and is spline-engaged with the rotor shaft 16 of the stepping motor M. are doing. Therefore, when the rotor shaft 16 rotates due to the operation of the stepping motor M, the screw 15
moves up or down, and the paper handling protrusion 14 also moves up or down (see FIG. 4. However, FIG. 4 is a sectional view taken along the line -- in FIG. 3).
前記ステツピングモーターＭは、コンピユータ
ー２１によつて与えられるパルス信号に応じて所
定回転角度だけ回転せしめられる。第４図中、２
２はモーター制御装置であつて、同制御装置２２
は、コンピユーター２１の出力信号により、ステ
ツピングモーターＭの各コイルに適切なタイミン
グでパルスを与えるためのコントロール回路と、
そのパルスを増幅するドライブ回路で構成されて
いる。 The stepping motor M is rotated by a predetermined rotation angle in response to a pulse signal given by the computer 21. In Figure 4, 2
2 is a motor control device, and the control device 22
is a control circuit for applying pulses to each coil of the stepping motor M at appropriate timings according to the output signal of the computer 21;
It consists of a drive circuit that amplifies the pulse.
而して、紙さばき突起１４は、搬送ベルト６の
上面よりもＨだけ高く突出されるのであるが、給
紙トレイ２内に収容される用紙Ｐの紙厚が大きけ
ればＨは小さく、逆に紙厚が小さければＨは大き
く設定される。Ｈの値は、紙厚に応じて予め定め
られており、使用すべき用紙Ｐの紙厚を、例えば
『厚い』、『普通』、『薄い』という区別によつて、
或いはμ（ミクロン）単位で、入力装置２０から
コンピユーター２１に入力すれば、その入力値に
応じて、規定突出量Ｈに対応するパルス信号が、
コンピユーター２１によつて、ステツピングモー
ターＭに与えられるのである。 Therefore, the paper handling protrusion 14 is projected higher than the upper surface of the conveyor belt 6 by H, but if the thickness of the paper P stored in the paper feed tray 2 is large, H is small; If the paper thickness is small, H is set large. The value of H is predetermined according to the paper thickness, and the paper thickness of the paper P to be used is distinguished, for example, as "thick", "normal", or "thin".
Alternatively, if input is made from the input device 20 to the computer 21 in units of μ (microns), a pulse signal corresponding to the specified protrusion amount H is generated according to the input value.
It is applied to the stepping motor M by the computer 21.
本実施例は、前記の様に構成されており、給紙
トレイ２に収容する用紙Ｐの厚さを入力装置２０
からコンピユーター２１に入力すると、コンピユ
ーター２１の指令により、ステツピングモーター
Ｍが動作し、回転子軸１６およびこれと一体的に
回転するスクリユー１５が所定角度だけ回転し
て、紙さばき突起１４の突出量Ｈが、用紙Ｐの厚
さに対応した値になる。 The present embodiment is configured as described above, and the thickness of the paper P to be accommodated in the paper feed tray 2 is input to the input device 2.
When the input is input to the computer 21, the stepping motor M is operated according to the command from the computer 21, and the rotor shaft 16 and the screw 15 that rotate integrally with the rotor shaft 16 are rotated by a predetermined angle, and the protrusion amount of the paper handling protrusion 14 is adjusted. H has a value corresponding to the thickness of paper P.
次いで、給紙トレイ２内に用紙Ｐを積層状態で
収納すると、この前端側中央部が紙さばき突起１
４にて持上げられ、前端縁が、前壁２Ａで規制さ
れる。 Next, when the paper P is stored in a stacked state in the paper feed tray 2, the central part on the front end side is connected to the paper handling protrusion 1.
4, and the front end edge is regulated by the front wall 2A.
但し、ブロワー８が動作している間は、吸気室
９を通じて搬送ベルト６の吸気穴７から吸気が行
われるために、最下層用紙は、搬送ベルト６に吸
着され、紙さばき突起１４によつて持上げられる
べき前端縁部も頂壁１０面に沿うことになる。 However, while the blower 8 is operating, air is taken in from the suction hole 7 of the conveyor belt 6 through the suction chamber 9, so the bottom layer of paper is attracted to the conveyor belt 6 and is separated by the paper separating protrusion 14. The front edge portion to be lifted also lies along the top wall 10 surface.
斯くして、搬送ベルト６の回転に伴つて、前壁
２Ａと頂壁１０によつて画成される搬出口を通じ
て、最下層用紙のみが搬出され、搬送ロール１７
側へ送られる。 In this manner, as the conveyor belt 6 rotates, only the lowest layer of paper is conveyed out through the outlet defined by the front wall 2A and the top wall 10, and the sheet is transferred to the conveyor roll 17.
Sent to the side.
この後、使用する用紙を薄手の用紙と代える場
合には、給紙トレイ２に収容する新たな用紙の紙
厚を入力装置２０からコンピユーター２１に入力
し、紙さばき突起１４を更に上昇させて、紙厚に
対応した突出量Ｈにする。逆に、厚手の用紙を使
用する場合には、紙さばき突起１４を降下させ
る。 After this, if you want to replace the paper to be used with a thinner paper, input the paper thickness of the new paper to be stored in the paper feed tray 2 into the computer 21 from the input device 20, further raise the paper handling protrusion 14, Set the protrusion amount H to correspond to the paper thickness. Conversely, when using thick paper, the paper handling protrusion 14 is lowered.
発明の効果
以上の説明から明らかな様に、本発明では、複
写機、フアクシミリ等に於ける給紙トレイの底面
に配設された複数本の真空吸引式用紙搬送ベルト
間に、紙さばき突起を配設し、この紙さばき突起
の突出量を、使用する用紙の紙厚に応じて調整し
得る様に構成したので、使用する用紙の紙厚を変
えた場合でも、ミス・フイード、或いは重送が生
ずることは無く、トラブル発生が未然に防止さ
れ、機械の運転効率が向上する。Effects of the Invention As is clear from the above description, the present invention provides paper handling protrusions between a plurality of vacuum suction paper conveyance belts disposed on the bottom of a paper feed tray in a copying machine, facsimile machine, etc. Since the projecting amount of the paper handling protrusion can be adjusted according to the paper thickness of the paper used, even if the paper thickness of the paper used is changed, there will be no misfeed or double feed. This prevents trouble from occurring and improves the operating efficiency of the machine.
第１図は本発明の構成を示す概念図、第２図は
本発明の一実施例に係る給紙装置の縦断側面図、
第３図は第２図に於ける−線矢視図、第４図
は第３図に於ける−線断面図である。
１…給紙装置、２…給紙トレイ、２Ａ…前壁、
３…真空吸引式搬送ベルト装置、４…駆動ロー
ル、５…従動ロール、６…搬送ベルト、７…吸気
穴、８…ブロワー、９…吸気室、１０…頂壁、１
０ａ…搬送ガイド板、１１…開口、１２…ブラケ
ツト、１３…雌螺子部、１４…紙さばき突起、１
５…スクリユー、１６…回転子軸、１７…搬送ロ
ール、２０…入力装置、２１…コンピユーター、
２２…モーター制御装置、Ｍ…ステツピングモー
ター。
FIG. 1 is a conceptual diagram showing the configuration of the present invention, FIG. 2 is a longitudinal sectional side view of a paper feeding device according to an embodiment of the present invention,
3 is a view taken along the - line in FIG. 2, and FIG. 4 is a sectional view taken along the - line in FIG. 3. 1... Paper feeding device, 2... Paper feeding tray, 2A... Front wall,
3... Vacuum suction type conveyor belt device, 4... Drive roll, 5... Driven roll, 6... Conveyor belt, 7... Intake hole, 8... Blower, 9... Intake chamber, 10... Top wall, 1
0a...Conveyance guide plate, 11...Opening, 12...Bracket, 13...Female screw portion, 14...Paper handling protrusion, 1
5... Screw, 16... Rotor shaft, 17... Conveyance roll, 20... Input device, 21... Computer,
22...Motor control device, M...Stepping motor.
Claims (1)
制する規制部材２Ａを備えるとともに、給紙トレ
イ２の底面にブロワー８の吸気作用により最下位
の用紙を吸着して搬出する複数本の用紙搬送ベル
ト６を備えた給紙装置において、 前記複数本の用紙搬送ベルト６間に位置すると
ともに、該用紙搬送ベルト６の用紙吸着面よりも
上方に突出し得る上下動可能な紙さばき突起１４
と、 該紙さばき突起１４を上下動させるための駆動
手段Ｍと、 用紙厚さを入力するための用紙厚さ設定手段２
０と、 該用紙厚さ設定手段２０からの信号により、用
紙厚さの大小に応じて前記用紙吸着面からの紙さ
ばき突起１４の突出量を決定する決定手段２１
と、 該決定手段２１による決定結果に基づいて前記
駆動手段Ｍを動作させる制御手段２２とを備えて
なる給紙装置。[Claims] 1. A regulating member 2A is provided on the front surface of the paper feed tray 2 to regulate the front end of the stacked paper P, and the lowest paper is sucked to the bottom surface of the paper feed tray 2 by the suction action of the blower 8. In a paper feeding device equipped with a plurality of paper conveyance belts 6 to be carried out, a vertically movable belt located between the plurality of paper conveyance belts 6 and capable of protruding above the paper suction surface of the paper conveyance belt 6 is provided. Paper handling protrusion 14
, a driving means M for vertically moving the paper handling protrusion 14, and a paper thickness setting means 2 for inputting the paper thickness.
0, and a determining means 21 for determining the amount of protrusion of the paper handling protrusion 14 from the paper suction surface according to the size of the paper thickness based on the signal from the paper thickness setting means 20.
and a control means 22 for operating the drive means M based on the determination result by the determination means 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58155735A JPS6048837A (en) | 1983-08-27 | 1983-08-27 | Sheet feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58155735A JPS6048837A (en) | 1983-08-27 | 1983-08-27 | Sheet feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6048837A JPS6048837A (en) | 1985-03-16 |
| JPS6339498B2 true JPS6339498B2 (en) | 1988-08-05 |
Family
ID=15612299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58155735A Granted JPS6048837A (en) | 1983-08-27 | 1983-08-27 | Sheet feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6048837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557277A (en) * | 1991-08-30 | 1993-03-09 | Taiji Nobuchi | Circulating and moving type ceramic water activating device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9505502D0 (en) * | 1995-03-18 | 1995-05-03 | Watkiss Automation Ltd | Methods of and apparatus for feeding sheet material |
-
1983
- 1983-08-27 JP JP58155735A patent/JPS6048837A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0557277A (en) * | 1991-08-30 | 1993-03-09 | Taiji Nobuchi | Circulating and moving type ceramic water activating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6048837A (en) | 1985-03-16 |
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