JPS60137732A - Paper feeder - Google Patents

Abstract

PURPOSE:To prevent the overlaid conveyance and jamming of paper, by moving down one end of a frame through the rotation of a cam, moving down the other end of the frame while taking out the uppermost sheet of the paper, and bringing the taken-out sheet into pressure contact with the friction part of a conveyance plate. CONSTITUTION:A conveyance plate 4, which is formed along a paper conveyance passage, is provided with a friction part 4A on the side facing a conveyance belt 5. Drive pulleys 6, 7 are controlled so that their rotation is synchronized with that of a cam 13 and is stopped by a signal from a detection sensor 15. When a roller 11 is pushed by the cam 13, a frame 8 is swung counterclockwise about a shaft 10A and the lower end of the belt 5 is moved down into contact with the uppermost sheet 3A of paper. The drive pulley 6 is rotated synchronously with the cam 13 to guide the uppermost sheet 3A of paper to the friction part 4A. The frame 8 is then gradually titled clockwise about the shaft 10A so that the portion of the frame near the pulley 6 ascends. As a result, the belt 5 is put out of pressure contact with the paper 3 to prevent the overlaid conveyance and jamming of the paper.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明け、ベルトによる給紙装置に関するものであり、
特に重複始送とジャムを防止した給紙装置に関するもの
である。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a belt-based paper feeding device,
In particular, the present invention relates to a paper feeding device that prevents double starting and jamming.

〔発明の技術的背景〕[Technical background of the invention]

従来の給紙装置では紙葉４’＋ｌｔ載１１１１の一番上
の紙蛎をフィードベルトにより間欠的ＫＪＩＩｌり込み
、゛フィードベルトと摩擦材からなるセ・ξレーン８フ
部に送る。セパレーション部にて重複搬送を防止し、１
枚の紙葉のみを搬送していた。In the conventional sheet feeding device, the topmost sheet of paper sheets 4'+lt stack 1111 is intermittently fed into KJII by the feed belt and sent to the 8th section of the lane 8 consisting of the feed belt and the friction material. Preventing duplicate conveyance at the separation section, 1
Only sheets of paper were being transported.

〔背景技術の問題点〕[Problems with background technology]

しかるにこのような給紙装置ａでけ紙厚の変化に伴ない
重複搬送やジャムは依然として発生した。However, in such a paper feeder a, duplicate conveyance and jam still occur due to changes in paper thickness.

〔発明の目的〕[Purpose of the invention]

本発明けこのような問題点ＶＣ録みなされたもので、重
複搬送やジャムを無く゛ずようにした給紙３・１ｅ置を
提供することを目的とずｚＩｏ 〔発明の概要〕 支持プレートに積載された紙葉に搬送ベルトを接触させ
紙葉を取り出す給紙装置において、略中央部が揺動自在
に支軸され左右両端部にベルト駆＋９１１川プーリが設
けられ上方に突出した突出部にカムに当接するローラが
設けられた逆Ｔ字形のフレームと、前記ベルト駆動用プ
ーリに巻き（Ｊｌけられた搬送ベルトと、前記フレーム
の一端を上方“に付勢させるバネと、前記ローラに当接
し前記フレーム’ｆ　揺ｄ９１するカムと、前記フレー
ムの一端の下方に設Ｈられた紙葉＊　＋＋ｒｉ載した支
Ｉ、′Ｊプレートと、前ＭＬフレームの下方に前記搬送
ペルｔｉｃ一対向して設けられた紙葉全分離する摩擦部
とを具備し、前記カムの回動により前記フレームの一端
を降下させ最上位の紙葉をｌ’１７り出しながら前記フ
レームの他端を降下させ前記取り出された紙葉を前記摩
擦部に圧接し７紙葉の重複搬送を除去しながら給紙する
ことを目的としたものである。[Summary of the Invention] The present invention is not intended to provide a paper feed 3/1e arrangement that eliminates duplicate conveyance and jamming. In a paper feeding device that brings a conveyor belt into contact with paper sheets and takes out the paper sheets, the approximately central portion is pivoted so as to be swingable, belt drive +911 pulleys are provided at both left and right ends, and cams are mounted on the upwardly protruding protruding portions. an inverted T-shaped frame provided with a roller that comes into contact with the roller; a conveyor belt wound around the belt driving pulley; a spring that biases one end of the frame upward; The frame 'f has a cam that oscillates d91, supports I and 'J plates on which paper sheets *++ri are mounted, which are set below one end of the frame, and the transport pel tic, which is set opposite to each other below the front ML frame. and a friction part that separates all the sheets taken out, and by rotation of the cam, one end of the frame is lowered and the uppermost sheet is taken out, while the other end of the frame is lowered and the sheet is taken out. The object of this invention is to press the sheets of paper against the frictional portion and feed the sheets while eliminating duplicate conveyance of seven sheets.

〔発明の実施例〕[Embodiments of the invention]

以下本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.

本発明の給紙装置１は第１図に示す如く、支持プレート
２に複数枚の紙葉３がｆ＋ｌｆ載されている。この支持
プレート２には位置調整部（図示せぬ）が設けられてお
り、支持プレート２け常に一番上に積載された紙葉３Ａ
が所定のイ；ｒ　ｆｉ’ｊにくるように調整している。As shown in FIG. 1, the paper feeding device 1 of the present invention has a plurality of paper sheets 3 f+lf placed on a support plate 2. This support plate 2 is provided with a position adjustment part (not shown), and the support plate 2 always has the paper sheets 3A loaded on top.
is adjusted so that it comes to a predetermined value.

搬送プレート４け紙葉を搬送する径路に沿って帯状に形
成され後述する搬送ベルト５に対向する面には紙葉の重
複を防ぐための摩擦部４Ａが形成されている。始送ベル
ト５は帯状をなし２つの駆動プーリ６．７に巻き掛けら
れ駆動プーリ６．７の回動により紙葉３を搬送プレート
４に沿って搬送する。この駆動プーリ６，７は後述する
カム１３０回動に同期し、後述する検出センサ１５の信
号により停止するように制御されている。The conveyor plate is formed into a belt shape along a path for conveying four sheets of paper, and a friction portion 4A for preventing overlapping of sheets is formed on the surface facing a conveyor belt 5, which will be described later. The first feed belt 5 has a band shape and is wound around two drive pulleys 6.7, and the sheet 3 is conveyed along the conveyance plate 4 by rotation of the drive pulleys 6.7. The drive pulleys 6 and 7 are controlled to be synchronized with the rotation of a cam 130, which will be described later, and to be stopped by a signal from a detection sensor 15, which will be described later.

フレーム８は中央に突出部をイイした棒状をなし駆動プ
ーリ６．７を両端部の軸６Ａ、、７Ａにて軸支している
。また、この駆動プーリ６，７の間に、は駆動プーリ７
に回動を伝動するプーリ９と動力源に連結されたプーリ
１０を夫々軸９Ａ、ＩＯＡにて軸支している。フレーム
８の突出ｆｆ１ｉ　Ｋはローラ１１が軸１１Ａにて軸支
されている。さらにフレームｌｄ軸１０Ａを支点として
揺動自在となっている。フレーム８の先端部には上方に
付勢された引張コイルバネ１２が取りつけられている。The frame 8 has a rod shape with a protrusion in the center, and a drive pulley 6.7 is supported by shafts 6A, 7A at both ends. Also, between the drive pulleys 6 and 7, the drive pulley 7
A pulley 9 that transmits rotation to the pulley 9 and a pulley 10 connected to a power source are supported by shafts 9A and IOA, respectively. The protrusion ff1iK of the frame 8 has a roller 11 supported by a shaft 11A. Furthermore, it is swingable about the frame ld axis 10A as a fulcrum. A tension coil spring 12 biased upward is attached to the tip of the frame 8.

カム１３は一回転するごとに外周半径が大小に変化する
形状をし、回転クプツチあるいはパルスモータ等によ４
一回転制御されている。このカム１３はローラ１１に当
接し、カム１３の回動によりフレーム８の軸］、ＯＡを
支点として揺ＩＩｉ！＋する。この揺動運動に伴ない駆
動プーリ６側の搬送ベルト５の下端は制御に従い昇降運
動をし、支持プレート４に積載された一番上の紙葉３Ａ
に接したり離れたりする。搬送プレート４の延長部圧は
送出された紙葉３Ａを挾持する搬送ローラ１４が設けら
れている。搬送ローラ１４の後には給紙された紙葉３Ａ
を検出する検出センサ１５が搬送プレート４の上方及び
下方に設けられ検出信号を制御部（図示せぬ）に送出し
ている。The cam 13 has a shape in which the outer radius changes in size with each rotation, and is rotated by a rotary kuptuchi or a pulse motor.
Controlled by one rotation. This cam 13 comes into contact with the roller 11, and as the cam 13 rotates, the axis of the frame 8] swings about the OA as a fulcrum. + Along with this swinging movement, the lower end of the conveyor belt 5 on the drive pulley 6 side moves up and down in accordance with the control, and the uppermost paper sheet 3A loaded on the support plate 4
come into contact with or move away from. A conveyor roller 14 is provided as an extension of the conveyor plate 4 to clamp the delivered sheet 3A. After the conveyance roller 14, the fed paper sheet 3A
Detection sensors 15 are provided above and below the conveyance plate 4 and send detection signals to a control section (not shown).

次に本発明の動作について説明する。Next, the operation of the present invention will be explained.

１ず、支持プレート２に紙葉３を積載すると支持プレー
ト２は位置調整部（図示せぬ）によυ一番」二に４１′
１載されろ紙葉３Ａが所定の位置にくるように設定され
る。外部から給紙−Ｊマンｒがｉｌｉ制御））１１（図
示せぬ）に送られると、１１ｊ”１ｊ御部はカム１３の
半径の最大外周端がローラ１１に尚ｊ躾するようにカム
１３を回転させる。カム１３が引張コイルバネ１２の弾
性力に反してローラ１１ヲ押圧すＺｌと、第２１シＩＫ
示す如くフレームは軸１０Ａを支点として反時計回りに
揺動する。駆動プーリ６に巻き掛けられた搬送ベルト５
の下端は下甑、し最上イ）７の紙葉３Ａに当接する。駆
動プーリ６はカム１３σ）Ｉ１１１動に同期しで回動し
駆動プーリ６の側の搬送ベルト５け最」二位の紙葉３Ａ
を搬送プレート４の摩擦部４Ａに肪、＋ＬＪする。この
紙葉３Ａが搬送プレート４の摩擦部４　Ａに誘導される
と、カム１３が外イＹ半径の最小れ１１分に向って回動
し、引張コイルバネ１２の弾性力によりフレーム８も軸
１０Ａ′ｆｔ支点として時８トｕりに徐々に傾く。搬送
ベルト５の駆ル１１ノーリ６側は上昇し重複搬送やジャ
ムを起こさないように紙葉３への圧接を解除する。また
搬送ベルト５の駆動シーリフ側は下降し搬送プレート４
の摩擦部４Ａ全圧接する。この摩擦部４Ａにて重複した
紙葉３は最上位の紙葉３Ａより分離され最上位の紙葉３
Ａのみが搬送プレー）４に沿いながら搬送ローラ１４に
誘導される。フレーム８は第１図に示すように搬送ベル
ト５の駆動シーリフ側を搬送プレート４に圧接した状態
を若干の時間維持し、最上位の紙葉３Ａけ搬送ローラ１
３圧挾持され搬送プレート４に沿い検出センサ１５に誘
導される。この紙葉３Ａが検出センｖ１５を通過すると
、検出センサ１５ｄ紙葉３Ａが給紙されたことを検知し
制御部に信号を送り駆動プーリ６，７の動力源を停止さ
せ給紙を完了する。1. When the paper sheets 3 are loaded on the support plate 2, the support plate 2 is moved to υ1', 2, 41' by the position adjustment part (not shown).
1 and the filter paper sheets 3A are placed in a predetermined position. When the sheet is fed from the outside to the paper feeder 11 (not shown), the controller 11j controls the cam 13 so that the maximum outer circumferential edge of the radius of the cam 13 still touches the roller 11. Zl, where the cam 13 presses the roller 11 against the elastic force of the tension coil spring 12, and the 21st cylinder IK.
As shown, the frame swings counterclockwise about the shaft 10A as a fulcrum. Conveyor belt 5 wrapped around drive pulley 6
The lower end of the lower end contacts the paper leaf 3A of the uppermost part A) 7. The drive pulley 6 rotates in synchronization with the movement of the cam 13σ)I111, and the conveyor belt 5 on the side of the drive pulley 6 moves the second sheet of paper 3A.
+LJ is applied to the friction portion 4A of the conveyor plate 4. When this paper sheet 3A is guided to the friction part 4A of the conveyance plate 4, the cam 13 rotates toward the minimum 11 minutes of the outer Y radius, and the elastic force of the tension coil spring 12 causes the frame 8 to move toward the axis 10A. 'ft As a fulcrum, it gradually tilts to 8 torso. The drive wheel 11 side of the conveyor belt 5 rises and releases the pressure contact with the sheet 3 to prevent duplicate conveyance or jamming. In addition, the driving ceiling side of the conveyor belt 5 is lowered and the conveyor plate 4
The friction part 4A is fully pressed. The overlapping paper sheets 3 are separated from the uppermost sheet 3A at this friction part 4A, and the uppermost sheet 3 is separated from the uppermost sheet 3A.
Only A is guided to the conveyance roller 14 along the conveyance play (4). As shown in FIG. 1, the frame 8 maintains the state in which the drive ceiling side of the conveyor belt 5 is pressed against the conveyor plate 4 for a while,
It is held under three pressures and guided along the conveyance plate 4 to the detection sensor 15. When the paper sheet 3A passes through the detection sensor v15, the detection sensor 15d detects that the paper sheet 3A has been fed and sends a signal to the control section to stop the power source of the drive pulleys 6 and 7 and complete the paper feeding.

なお、駆動プーリ６．７．プーリ９，１０はギアであっ
ても良い。Note that the drive pulley 6.7. The pulleys 9 and 10 may be gears.

〔発明の効果〕〔Effect of the invention〕

以上簡明したように本発明を用いれば紙厚にかかわらず
止′複搬送やジャムが防止されその効果は大である。As explained above, if the present invention is used, double conveyance and jams can be prevented regardless of paper thickness, and the effect is great.

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

第１Ｉ・′！１は本発明の実施例を示す給紙装置の説明
図、第２図は本発明の実施例を示す給紙装置の動作説明
図。 １・・・給紙装置　２・−・支持プレート３．３Ａ・・
・紙葉　４・・・搬送プレート４Ａ・・・摩擦部　訃・
・搬送ベルト６．７・−駆動プーリ　６Ａ、’　７Ａ、
９Ａ、ＩＯＡ・−・軸８・・・フレーム　９，１０・・
・プーリ１１・・・ローラ１２・・・引６１４−ｙイル
ハネ１３・・・ノＪム　１４・−・搬送ローラ　１５・
・・検出セ／す 代理人　弁理士　則　夕ｒ　憲　佑 （ほか１名）1st I・′! 1 is an explanatory diagram of a paper feeding device showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the operation of the paper feeding device showing an embodiment of the present invention. 1...Paper feeding device 2...Support plate 3.3A...
・Paper leaf 4...Conveyance plate 4A...Friction part ・
・Transport belt 6.7・-Drive pulley 6A,' 7A,
9A, IOA... Axis 8... Frame 9, 10...
・Pulley 11...Roller 12...Pull 614-y Irhane 13...NoJmu 14--Conveyance roller 15-
・・Detection Center Agent Patent Attorney Nori Yur Kensuke (and 1 other person)

Claims (1)

【特許請求の範囲】[Claims] 支持プレートに積載された紙葉に搬送ベルトを接触させ
紙葉をＪ１！２り出す給紙装置において、略中央部が揺
動自在に支軸され左右両立１１１ｉ部にベルト駆動用ゾ
ーりが設けられ上方に突出した突出部にカムに当接する
ローラが設けられた逆Ｔ字形のフレームと、前記ベルト
駆動用プーリに巻き掛けられた搬送ベルトと、前記フレ
ームの一端を上方に付勢させるバネと、前記ローラに当
接し前記フレームを揺動するカムと、前記フレームの一
端の下方に設けられた紙葉を積載した支持プレートと、
前記フレームの下方にＭ記搬送ベルトに対向して設けら
れた紙葉を分離する摩擦部とを具備し、前記ノＪムの回
動により前記フレームの一端を降下させ最上位の紙葉を
取り出しながら前記フレームの他端をＩｔ；ｆ、下させ
前記取り出烙れた紙＃を前記暦擦部に１．ＥＪ＞ｚ’　
Ｌ紙葉の重複搬送を除去しながら給紙することを特徴と
する給紙装置。In a paper feeding device that brings a conveyor belt into contact with paper sheets stacked on a support plate and ejects the paper sheets, approximately the center part is pivoted so as to be swingable, and a belt drive zone is provided in the left and right compatible part 111i. an inverted T-shaped frame having a protruding portion that protrudes upward and is provided with a roller that contacts a cam; a conveyor belt that is wound around the belt drive pulley; and a spring that biases one end of the frame upward. , a cam that contacts the roller and swings the frame; a support plate provided below one end of the frame and loaded with paper sheets;
A friction part for separating paper sheets is provided below the frame, and is provided opposite to the conveyor belt M, and one end of the frame is lowered by the rotation of the nozzle, and the uppermost paper sheet is taken out. While doing so, lower the other end of the frame and place the heated paper #1 on the calendar rubbing part. EJ＞z'
A paper feeding device characterized by feeding paper while eliminating duplicate conveyance of L paper sheets.