JPH02282124A - Automatic paper feed device - Google Patents

Automatic paper feed device

Info

Publication number
JPH02282124A
JPH02282124A JP10248989A JP10248989A JPH02282124A JP H02282124 A JPH02282124 A JP H02282124A JP 10248989 A JP10248989 A JP 10248989A JP 10248989 A JP10248989 A JP 10248989A JP H02282124 A JPH02282124 A JP H02282124A
Authority
JP
Japan
Prior art keywords
feed belt
pick roller
groove
roller
pressure plate
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
Application number
JP10248989A
Other languages
Japanese (ja)
Inventor
Nobuhiko Ideta
出田 順彦
Kojiro Yoshimura
吉村 浩二郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
NEC Engineering Ltd
Original Assignee
NEC Corp
NEC Engineering Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, NEC Engineering Ltd filed Critical NEC Corp
Priority to JP10248989A priority Critical patent/JPH02282124A/en
Publication of JPH02282124A publication Critical patent/JPH02282124A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE:To prevent generation of poor sucking a post card by providing a groove on the outer circumference of the center part of a paper sheet sucking roller, and fitting a belt for transporting a paper sheet in this groove so that a post card contacts with the pick roller even if the extreme end of the card contacts with a pressure plate, as the outer diameter of the belt is smaller than the outer diameter of the roller. CONSTITUTION:A groove for fitting a feed belt 2 is provided on the outer circumference of the center part of a pick roller 1, and the depth of groove is formed deeper than the thickness of feed belt 2, so that the outer diameter of the feed belt 2 is smaller than that of the pick roller 1 in the winding condition of the feed belt 2 for transporting a paper sheet around the pick roller 1. In this way, as the outer circumferential face of the feed belt 2 is lower than that of the pick roller 1, even though the extreme end of a post card 8 contacts with a pressure plate 5, the post card 8 contacts with the pick roller 1, and sucking of the card can be correctly performed by rotation of the pick roller 1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、情報処理機器の出力装置として用いるプリン
タの自動給紙装置に関し、特に単票用紙および葉書を供
給するための自動給紙機構に関する。
Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an automatic paper feeding device for a printer used as an output device of an information processing device, and particularly relates to an automatic paper feeding mechanism for feeding cut sheets and postcards. .

〔従来の技術〕[Conventional technology]

情報処理機器の出力装置として用いるプリンタの自動給
紙装置のうち、単票用紙および葉書を供給するための従
来の自動給紙装置において、特に葉書をセットして吸入
させる場合、葉書が弯曲しているとき、そのカール方向
によって吸入不良を生じやすいため、カール方向を指定
してセットしなければならない。
Among the automatic paper feeders of printers used as output devices for information processing equipment, in conventional automatic paper feeders for feeding cut sheets and postcards, especially when the postcards are set and sucked, the postcards may be curved. When the device is curled, the direction of the curl tends to cause poor suction, so the direction of the curl must be specified and set.

第2図は、このような従来の自動給紙装置の一例を示す
側面図である。
FIG. 2 is a side view showing an example of such a conventional automatic paper feeder.

第2図の例は、葉書18を図に示すように上向きのカー
ル方向にホッパ14に搭載して吸入させた場合、このセ
ットされた葉s18の最下位のものから順次1枚ずつ吸
入されるが、上位の葉書が徐々にピックローラ11とプ
レッシャプレート15の接触点まで下ってピックローラ
11によって矢印A方向に吸入される。このとき、フィ
ードベルト12の表面がピックローラ11の外周よりも
高い位置にあるため、葉書18の先端がプレッシャプレ
ート15の下面に接触したままの状態となってピックロ
ーラ11に接触していないため、ピックローラ11が回
転しても葉書18を吸入できず、吸入不良を生ずる。
In the example of FIG. 2, when the postcards 18 are loaded in the hopper 14 in an upward curling direction as shown in the figure and sucked in, the set of leaves s18 are sucked one by one starting from the lowest one. However, the upper postcard gradually descends to the point of contact between the pick roller 11 and the pressure plate 15 and is sucked by the pick roller 11 in the direction of arrow A. At this time, since the surface of the feed belt 12 is at a higher position than the outer circumference of the pick roller 11, the tip of the postcard 18 remains in contact with the lower surface of the pressure plate 15 and is not in contact with the pick roller 11. Even if the pick roller 11 rotates, the postcard 18 cannot be sucked in, resulting in poor suction.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述したように、従来の自動給紙装置は、葉書をセット
して吸入させる場合、葉書のカール方向を指定しセット
しなければならないため、指定と反対の方向にセットす
ると吸入不良を生じ易く、このためセット方向を修正し
て再セットしなければならないという欠点がある。
As mentioned above, in conventional automatic paper feeding devices, when setting a postcard to be sucked, the curl direction of the postcard must be specified and set, so if the postcard is set in the opposite direction to the specified direction, suction failure tends to occur. For this reason, there is a drawback that the setting direction must be corrected and reset.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の自動給紙装置は、単票用紙を積重ねて搭載する
ホッパと、前記ホッパの前方に設けられて前記ホッパに
搭載された前記単票用紙の最下位の用紙と接触するピッ
クローラと、前記ピックローラに対して前記単票用紙を
押圧するプレッシャプレートと、前記プレッシャプレー
トに押圧力を付与するスプリングと、前記ホッパと前記
ピックローラとの間に設けられ前記単票用紙の最下位の
もの°と接触し前記フィードローラに巻回されるフィー
ドベルトとを備える自動給紙装置において、前記ピック
ローラの中央部の外周に溝を設け、前記溝の幅を前記フ
ィードベルトの幅よりも大きくし、前記溝の深さを前記
フィードベルトの厚さよりも深くし、前記フィードベル
トを前記溝に嵌入させて巻回したものである。
The automatic paper feeding device of the present invention includes: a hopper for stacking and loading cut sheets; a pick roller provided in front of the hopper and in contact with the lowest sheet of the cut sheets loaded in the hopper; a pressure plate that presses the cut paper against the pick roller; a spring that applies a pressing force to the pressure plate; and a lowest one of the cut paper that is provided between the hopper and the pick roller. and a feed belt wound around the feed roller, wherein a groove is provided on the outer periphery of the central part of the pick roller, and the width of the groove is larger than the width of the feed belt. , the depth of the groove is made deeper than the thickness of the feed belt, and the feed belt is fitted into the groove and wound.

〔実施例〕〔Example〕

次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.

第1図は本発明の一実施例を示す側面図である。FIG. 1 is a side view showing an embodiment of the present invention.

本実施例の全体の構成は、第1図に示すように、葉書8
等の用紙を積重ねて搭載するためのホッパ4と、ホッパ
4に搭載した用紙を吸入するためのピックローラ1と、
用紙をピックローラ1に押しつけるためのプレッシャプ
レート5と、プレッシャプレート5に押圧力を与えるス
プリング7と、用紙をホッパ4からとツクローラ1とプ
レッシャプレート5の接触点まで搬送するためのフィー
ドベルト2と、用紙を2枚同時に送ること(重送)を防
止のためのフリクションプレート6と、フリクションプ
レート6に押圧力を与えるためのスプリングつと、フィ
ードベルト2を巻回するプーリー3とを備えて構成され
ている。ピックローラ1の中央部の外周には、フィード
ベルト2を嵌入するための溝が設けられており9.ピッ
クローラ1に用紙搬送用のフィードベルト2を巻回した
状態において、フィードベルト2の外径がピックローラ
1の外径よりも小さくなるようにこの溝の深さをフィー
ドベルト2の厚さよりも深くしている。
The overall configuration of this embodiment is as shown in FIG.
a hopper 4 for stacking and loading sheets such as paper, and a pick roller 1 for sucking the sheets loaded in the hopper 4;
A pressure plate 5 for pressing the paper against the pick roller 1, a spring 7 for applying a pressing force to the pressure plate 5, and a feed belt 2 for transporting the paper from the hopper 4 to the contact point between the roller 1 and the pressure plate 5. , a friction plate 6 for preventing two sheets of paper from being fed at the same time (double feeding), a spring for applying a pressing force to the friction plate 6, and a pulley 3 around which the feed belt 2 is wound. ing. A groove for fitting the feed belt 2 is provided on the outer periphery of the central portion of the pick roller 1.9. When the feed belt 2 for conveying paper is wound around the pick roller 1, the depth of this groove is set to be smaller than the thickness of the feed belt 2 so that the outer diameter of the feed belt 2 is smaller than the outer diameter of the pick roller 1. It's deep.

このように、フィードベルト2の外周面がピックローラ
1の外周面よりも低い位置となっているため、葉書8の
先端がプレッシャプレート5に接触した状態になったと
きでも、葉書8がピックローラ1と接触しており、ピッ
クローラ1の回転によって吸入を正しく行うことができ
る。
In this way, since the outer circumferential surface of the feed belt 2 is at a lower position than the outer circumferential surface of the pick roller 1, even when the leading edge of the postcard 8 comes into contact with the pressure plate 5, the postcard 8 will not be able to reach the pick roller. 1, and suction can be performed correctly by rotation of the pick roller 1.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明の自動給紙装置は、用紙吸
入用のローラの中央部の外周に溝を設け、この溝に用紙
搬送用のベルトを嵌入させる構造となっているため、ベ
ルトの外径がローラの外径より小さく、葉書の先端がプ
レッシャプレートに接触した状態になっても葉書がピッ
クローラに接触して葉書の吸入不良の発生を防止するこ
とができるという効果があり、従って葉書のセットのと
きそのカール方向を指定する必要がなくなるため操作性
が向上するという効果がある。
As explained above, the automatic paper feeder of the present invention has a structure in which a groove is provided on the outer periphery of the central part of the roller for sucking paper, and a belt for paper conveyance is fitted into this groove. The outer diameter is smaller than the outer diameter of the roller, and even if the tip of the postcard comes into contact with the pressure plate, it has the effect of preventing the postcard from coming into contact with the pick roller and causing poor suction of the postcard. This has the effect of improving operability since there is no need to specify the curl direction when setting postcards.

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

第1図は本発明の一実施例を示す側面図、第2図は従来
の自動給紙装置の一例を示す側面図である。 1・11・・・ピックローラ、2・12・・・フィード
ベルト、3・13・・・プーリー、4・14・・・ホ・
7ノマ5・15・・・プレッシャプレート、6・16・
・・フリクションプレート、7・9・17・19・・・
スプリング、8・18・・・葉書。
FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a side view showing an example of a conventional automatic paper feeder. 1.11...Pick roller, 2.12...Feed belt, 3.13...Pulley, 4.14...H.
7 noma 5.15...pressure plate, 6.16.
... Friction plate, 7, 9, 17, 19...
Spring, 8/18...Postcard.

Claims (1)

【特許請求の範囲】[Claims] 単票用紙を積重ねて搭載するホッパと、前記ホッパの前
方に設けられて前記ホッパに搭載された前記単票用紙の
最下位の用紙と接触するピックローラと、前記ピックロ
ーラに対して前記単票用紙を押圧するプレッシャプレー
トと、前記プレッシャプレートに押圧力を付与するスプ
リングと、前記ホッパと前記ピックローラとの間に設け
られ前記単票用紙の最下位のものと接触し前記フィード
ローラに巻回されるフィードベルトとを備える自動給紙
装置において、前記ピックローラの中央部の外周に溝を
設け、前記溝の幅を前記フィードベルトの幅よりも大き
くし、前記溝の深さを前記フィードベルトの厚さよりも
深くし、前記フィードベルトを前記溝に嵌入させて巻回
したことを特徴とする自動給紙装置。
A hopper that stacks and loads cut sheets; a pick roller that is provided in front of the hopper and comes into contact with the lowest sheet of the cut sheets loaded in the hopper; a pressure plate that presses the paper; a spring that applies a pressing force to the pressure plate; and a spring provided between the hopper and the pick roller that contacts the lowest one of the cut sheets and winds it around the feed roller. In an automatic paper feeder comprising a feed belt, a groove is provided on the outer periphery of the central portion of the pick roller, the width of the groove is made larger than the width of the feed belt, and the depth of the groove is set to be greater than the width of the feed belt. An automatic paper feeding device characterized in that the thickness of the feed belt is made deeper than the thickness of the feed belt, and the feed belt is fitted into the groove and wound.
JP10248989A 1989-04-21 1989-04-21 Automatic paper feed device Pending JPH02282124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10248989A JPH02282124A (en) 1989-04-21 1989-04-21 Automatic paper feed device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10248989A JPH02282124A (en) 1989-04-21 1989-04-21 Automatic paper feed device

Publications (1)

Publication Number Publication Date
JPH02282124A true JPH02282124A (en) 1990-11-19

Family

ID=14328847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10248989A Pending JPH02282124A (en) 1989-04-21 1989-04-21 Automatic paper feed device

Country Status (1)

Country Link
JP (1) JPH02282124A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6616138B2 (en) * 2000-09-01 2003-09-09 Sharp Kabushiki Kaisha Recording device and a device for separating and feeding paper
US6672580B2 (en) * 2001-09-03 2004-01-06 Matsushita Electric Industrial Co., Ltd. Sheet feeding apparatus
US20110133394A1 (en) * 2008-04-09 2011-06-09 Pfu Limited Feeding device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6616138B2 (en) * 2000-09-01 2003-09-09 Sharp Kabushiki Kaisha Recording device and a device for separating and feeding paper
US6672580B2 (en) * 2001-09-03 2004-01-06 Matsushita Electric Industrial Co., Ltd. Sheet feeding apparatus
US20110133394A1 (en) * 2008-04-09 2011-06-09 Pfu Limited Feeding device
US8371573B2 (en) * 2008-04-09 2013-02-12 Pfu Limited Feeding device

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