JPS6071430A - Paper feeder - Google Patents

Paper feeder

Info

Publication number
JPS6071430A
JPS6071430A JP17985283A JP17985283A JPS6071430A JP S6071430 A JPS6071430 A JP S6071430A JP 17985283 A JP17985283 A JP 17985283A JP 17985283 A JP17985283 A JP 17985283A JP S6071430 A JPS6071430 A JP S6071430A
Authority
JP
Japan
Prior art keywords
sheet
feed roller
cassette
push
sheets
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
JP17985283A
Other languages
Japanese (ja)
Inventor
Katsuhiko Aisaka
勝彦 逢坂
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki Co 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP17985283A priority Critical patent/JPS6071430A/en
Publication of JPS6071430A publication Critical patent/JPS6071430A/en
Pending legal-status Critical Current

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
    • B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
    • 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
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile

Abstract

PURPOSE:To feed various types of sheet one by one reliably through simple structure, by constructing a casset to be laminated with sheets with a separation click arranged proximately to a feed roller and stopper boards for pressing the opposite sides of sheet. CONSTITUTION:The sheet body 10 is mounted on a push-up board 2 while restricted by a limiting board 8. A push-up lever 11 penetrating through the bottom of casset body 1 will push up said board 2 to contact the uppermost sheet 12 against a feed roller 5. Upon rotation of feed roller 5 under this state, the sheet 12 will bend upward in the center because of contact of the leading edge with a separation click 20. Upon further rotation of feed roller 5, the leading edge of sheet 12 will leap to ride over said click 20. Consequently, the sheet 12 is fed forward reliably under the state where the rear face is contacting with the leading edge of separation click 20.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、プリンタ、複写機等において、カセットにシ
ートを積層収容し、上記シートを送シローラによって１
枚づつ給送可能な給紙装置に関する。Detailed Description of the Invention (a) Industrial Application Field The present invention is used in printers, copying machines, etc., in which sheets are stacked and stored in a cassette, and the sheets are transported one by one by a feed roller.
This invention relates to a paper feeding device that can feed sheets one by one.

（ロ）従来技術 カセットにシートを積層収容し、上記シートを送りロー
ラによって１枚づつ給送可能な給紙装置において、シー
トの１枚づつの分離は、従来カセット先端の隅部に分離
爪を設けて行なっている。(b) Conventional technology In a paper feeding device that stores sheets stacked in a cassette and feeds the sheets one by one using a feed roller, separation of the sheets one by one is conventionally done using a separating claw at the corner of the tip of the cassette. It is set up and carried out.

しかし乍ら所る構造では、異なるサイズのシートに対し
ては分離爪がその効果をなさず、たた１種のサイズのシ
ートにしか対応できない。However, with some structures, the separating claws are ineffective for sheets of different sizes, and can only accommodate sheets of one size.

そこで、本発明者は先に特願昭５８−２４４３２号を出
願し、上述の問題点を解消している。即ち、上記出願の
特徴は、カセットにシートを積層収容し、上記シートを
その最上位から送りローラによって１枚づつ給送する給
紙装置において、先端部を前方へ２段に折曲された爪が
カセット先端に立役されると共に、先端部が上方へ折曲
され後端を支点として回動する押え板が、その先端を上
記爪に近接させる配置でカセット前方上部に装着された
ことを特徴としている。Therefore, the inventor of the present invention previously filed Japanese Patent Application No. 58-24432 to solve the above-mentioned problems. That is, the feature of the above-mentioned application is that, in a paper feeding device that stores sheets stacked in a cassette and feeds the sheets one by one from the topmost layer by a feed roller, a claw whose tip end is bent forward in two steps is provided. is attached to the front upper part of the cassette in such a way that the tip of the holding plate is bent upward and pivots about the rear end as a fulcrum, and the tip of the holding plate is placed close to the claw. There is.

第１図乃至第４図に祈る給紙装置を示す。第１図および
第２図はこの給紙装置に用いられるカセットを示し、（
１）はカセット本体、（２）は該カセット本体の底部に
落し込まれた押上げ板で、その後端部の突片（２ｍ）（
２ｂ）がカセット本体（１）の底部に遊貫され、両突片
（２λ）（２ｂ）を中心に回動自在でアシ、後述する規
制板の設置位置と対応する位置に切欠（３）を有する。FIGS. 1 to 4 show a paper feeder. Figures 1 and 2 show a cassette used in this paper feeding device.
1) is the cassette body, (2) is the push-up plate inserted into the bottom of the cassette body, and the protruding piece (2m) at the rear end (
2b) is loosely penetrated through the bottom of the cassette body (1), and is rotatable around both protruding pieces (2λ) (2b), with a notch (3) at a position corresponding to the installation position of the regulating plate, which will be described later. have

（４１１４）はカセット本体（１）先端内側に立設され
た分離爪で、その先端部は立設方向に対しである角度で
前方へ折曲された斜辺部（４ａ）　と、更にその先端が
立設方向に折曲された垂直部（４ｂ）とからなる。また
、両分離爪（４）＜４１は、その立役間隔の中心が送シ
ローラ（５）の幅方向の中心と一致すると共に、“カセ
ット本体（１）先端に向かってややカセット本体（１）
の左側板（１Ｌ）側に配置されている。（６）は押え板
で、その後端両側に垂下して設けられた両突部Ｃ６＠）
Ｃ６ｂ）において、カセット本体（１）の両側板（ＩＬ
）（ＩＲ）上部に回動自在に支持されている。この時、
押え板の先端の一部は分離爪＋４１！４１に近接するよ
うに配置きれ、押え板の先端は分離爪！４）（４）の近
傍のシート部分を最も強く押える如く、分離爪＋４１（
４）から離れるに従って、カセット本体（１）先端との
間隔が広くなっている。(4114) is a separating claw installed inside the tip of the cassette body (1), and its tip has an oblique side (4a) bent forward at an angle with respect to the upright direction; It consists of a vertical part (4b) bent in the upright direction. In addition, the center of the vertical interval of both separation claws (4) < 41 coincides with the widthwise center of the feed roller (5), and
It is located on the left side plate (1L) side of the. (6) is a presser plate, with double protrusions C6 @) hanging on both sides of the rear end.
C6b), the both side plates (IL) of the cassette body (1)
) (IR) is rotatably supported at the top. At this time,
A part of the tip of the presser plate can be placed close to the separation claw +41!41, and the tip of the presser plate is the separation claw! 4) Press the separation claw +41(
4), the distance from the tip of the cassette body (1) becomes wider.

また、押え板（６）の先端部には上方への折曲部（６）
が設けられていると共に、送りローラ（５）と対向する
位置に切欠（７）が施されている。（８）はカセット本
体（１）に積層収容されるシートのカセット本体の右側
板（１Ｒ）側を規制するために、押上げ板の切欠（３）
と対応する位置に配設された規制板である。該規制板は
、断面り字状であり、カセット本体（１）に積層収容さ
れるシートの幅方向へ摺動自在となるように、その水平
部がカセット本体ｆｉｌ底部に穿たれたスリット状の孔
（９）にピン止めされている。In addition, the tip of the presser plate (6) has an upwardly bent portion (6).
A notch (7) is provided at a position facing the feed roller (5). (8) is a notch (3) in the push-up plate in order to restrict the right side plate (1R) side of the cassette body of the sheets stacked and stored in the cassette body (1).
This is a regulation plate arranged at a position corresponding to the above. The regulating plate has a slit shape in cross section, and its horizontal portion has a slit shape cut in the bottom of the cassette body (1) so that it can slide freely in the width direction of the sheets stacked and stored in the cassette body (1). It is pinned in the hole (9).

次に、上記カセットを用いた給紙装置に一ついて、第３
図および第４図を参照して説明する。Next, place one in the paper feeder using the above cassette, and
This will be explained with reference to the figures and FIG.

押上げ板（２）上に載置されると共に、規制板（８）に
よって規制されたシート体（１■は、カセット本体＋１
．１内に挿通された押上げレバー（１１）によって押上
げ板（２）の先端と共に押し上げられ、その最上位が送
りローラ（５）に当接ぴれている。送りローラ（５）を
同装置において右回転させると、シート体（ｌυ）最上
位のシート（２）は、その先端が分離爪の斜辺部（４負
）から垂直部（４ｂ〕へと接触した状態で進み、給紙が
行なわれる。また、シートｏ４の表面は押え板の折曲ｓ
＋ｅｆに押えられた状態である。The sheet body (1) is placed on the push-up plate (2) and regulated by the regulation plate (8).
．． The tip of the push-up plate (2) is pushed up together with the tip of the push-up plate (2) by a push-up lever (11) inserted into the inside of the push-up lever (11), and the uppermost part of the push-up plate (2) is brought into contact with the feed roller (5). When the feed roller (5) was rotated clockwise in the same device, the topmost sheet (2) of the sheet body (lυ) came into contact with the vertical part (4b) from the oblique side (4 negative) of the separation claw. The sheet o4 advances in this state, and the paper is fed.Also, the surface of the sheet o4 is
It is in a state where it is held down by +ef.

このように、上記給紙装置は分離爪（４）と押え板（６
）との相互作用によって給紙が行なわれる。In this way, the paper feeding device has a separation claw (4) and a presser plate (6).
) Paper feeding is performed by interaction with the paper.

しかし乍ら、所る構造ではシートの先端は分離爪の斜辺
部（４ａ〕から垂直部（４ｂ）へと接触した状態で進み
、更にシートの表面が押え板の折曲部（鼾に押えられて
いるので、シートと分離爪（４）および押え板の折曲部
（６）との摩擦力か大さいと、給送ミスを起こしてしま
う。However, in some structures, the leading edge of the sheet advances from the oblique side (4a) of the separating claw to the vertical part (4b), and the surface of the sheet is pressed down by the folded part (snoring) of the holding plate. Therefore, if the frictional force between the sheet and the separating claw (4) and the bent portion (6) of the presser plate is large, feeding errors may occur.

゛（ハ）発明の目的 本発明の目的は、簡単な構造で種にのシートを確実に１
枚づつ給送可能な給紙装置を提供することである。゛(c) Purpose of the Invention The purpose of the present invention is to ensure that the sheet of seeds can be placed in one sheet with a simple structure.
It is an object of the present invention to provide a paper feeding device capable of feeding sheets one by one.

に）発明の構成 本発明の構成的０ｇ、は、カセットにシートを積層収容
し、上記シートをその最上位から送りローラによって１
枚づつ給送する給紙装置に８いて、上記カセットは、上
記送りローラの前方において送りローラと近接すると共
に送シローラの幅方向の中心位置に立設された分離爪と
、後端を支点として回動可能にカセット前方上部に装着
され、シートの両側を押える押え板とを具備したことに
ある。2) Structure of the Invention The structure of the present invention is to store sheets stacked in a cassette, and feed the sheets from the top by a feed roller.
The cassette is installed in a paper feeding device that feeds sheets one by one, and the cassette has a separation claw that is located in front of the feed roller and close to the feed roller and is vertically installed at the widthwise center of the feed roller, The cassette is rotatably attached to the front upper part of the cassette and includes a presser plate that presses both sides of the sheet.

（ホ）実施例 第５図乃至第８図に本発明の給紙装置を示す。(e) Examples FIGS. 5 to 8 show the paper feeding device of the present invention.

なお、第１図乃至第４図と同一部分には同一番号を付し
て説明を省略する。（１）はカセット本体（１）に立設
された分離爪で、その先端が送りローラ（５）の前方に
おいて近接すると共に送りローラ１５）の幅方向の中心
位置に配設されて１八る。Note that the same parts as in FIGS. 1 to 4 are designated by the same numbers and their explanations will be omitted. (1) is a separation claw installed upright on the cassette body (1), and its tip is close to the front of the feed roller (5) and is disposed at the center position in the width direction of the feed roller (15). .

以下、本発明の給紙装置について、第７図および第８図
を参照して説明する。Hereinafter, the paper feeding device of the present invention will be explained with reference to FIGS. 7 and 8.

押上げ板（２）上に載置されると共に規制板（８）によ
り規制されたシート体（１０）は、カセット本体（１）
内にその底部から挿通された押上げレバーａＤによって
押上げ板（２）と共に押し上げられ、その最上位のシー
ト（１２が送りローラ（５）と当接する。そして、送り
ローラ（５）を同装置において右回転させると、最上位
のシート（社）はその先端が分離爪■に当接していルタ
メシート（２）の中央部が上方へ明白せんとする。The sheet body (10) placed on the push-up plate (2) and regulated by the regulation plate (8) is connected to the cassette body (1).
The uppermost sheet (12) is pushed up together with the push-up plate (2) by the push-up lever aD inserted from the bottom of the device. When the uppermost sheet (2) is rotated clockwise, the tip of the uppermost sheet (2) comes into contact with the separating claw (2), and the center portion of the topmost sheet (2) is exposed upward.

しかし乍ら、分離爪■の後方に近接して位置する送シロ
ーラ（５）によって上記屈曲は押えられ、更に送シロー
ラ（５）が回転すると、シート＠の先端がはね上がり分
離爪■を乗り越える。従ってシート（２）はその裏面が
分離爪■の先端と当接した状態で、押え板（６）により
前方へ確実に給送される。However, the bending is suppressed by the feed roller (5) located close to the rear of the separation claw (2), and when the feed roller (5) further rotates, the leading edge of the sheet @ springs up and overcomes the separation claw (2). Therefore, the sheet (2) is reliably fed forward by the holding plate (6) with its back surface in contact with the tip of the separation claw (2).

また、異なるサイズのシートに対しては規制板（８）を
摺動移動させ、シートのサイズに合わせることによって
、上述と同様に給紙を行なうことができる。Furthermore, for sheets of different sizes, the regulating plate (8) can be slid to match the size of the sheet, so that sheet feeding can be performed in the same manner as described above.

（へ）発明の効果 本発明によれば、シートは送りローラにて押えられたや
や前方で、シートの先端が分離爪に当接し、送りローラ
の回転によってシートの先端がはね上がることによって
分離爪を乗シ越えるものであシ、従来例の如く、シート
の先端が、押え板に押えられると共にその近傍に設けら
！れた分離爪に当接した状態で這い上がるものではない
。従ってシートと分離爪および押え板との摩擦力の影響
はなくなるので、種々のシートを確実に給紙することが
できる。(F) Effects of the Invention According to the present invention, the leading edge of the sheet abuts the separation claw slightly in front of the sheet being pressed by the feed roller, and the rotation of the feed roller causes the leading edge of the sheet to spring up, causing the separation claw to move. As in the conventional example, the leading edge of the sheet is held down by a holding plate and is provided near the holding plate. It does not creep up while in contact with the separated separation claw. Therefore, the influence of the frictional force between the sheet and the separating claw and presser plate is eliminated, so that various sheets can be reliably fed.

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

第１図乃至第４図は従来例を示し、第１図はカセットの
上面図、第２図はその要＠呪断面図、第６図は給紙装置
の断面図、第４図はその要部拡大断面図である。ま７Ｉ
Ｃ第５図乃至第８図は本発明の実施例を示し、第５図は
カセットの上面図、第６図はその要部断面図、第７図は
給紙装置の断面図、第８図はその要部拡大断面図である
。 （１）・・・カセット本体、（５）・・・送りローラ、
（６）・・・押え板、（８）・・・規制板、ｍ−・・分
離爪。Figures 1 to 4 show a conventional example, where Figure 1 is a top view of the cassette, Figure 2 is a cross-sectional view of its essential parts, Figure 6 is a cross-sectional view of the paper feeding device, and Figure 4 is its essential parts. FIG. Ma7I
C Figures 5 to 8 show an embodiment of the present invention, in which Figure 5 is a top view of the cassette, Figure 6 is a sectional view of the main part thereof, Figure 7 is a sectional view of the paper feeder, and Figure 8 is a sectional view of the paper feeding device. is an enlarged sectional view of the main part thereof. (1)...Cassette body, (5)...Feed roller,
(6)... Pressing plate, (8)... Regulating plate, m-... Separation claw.

Claims (1)

【特許請求の範囲】[Claims] （１）　カセットにシートを積層収容し、上記シートを
その最上位から送シローラによって１枚づつ給送する給
紙装置に８いて、上記カセットは、上記送シローンの前
方において送りローラと近接すると共に送りローラの幅
方向の中心位置に立設された分離爪と、後端を支点とし
て回動可能にカセット前方上部に装着され、シートの両
側を押える押え板とを具備したことを特徴とする給紙装
置。(1) There is a paper feeding device which stores sheets stacked in a cassette and feeds the sheets one by one from the topmost layer by a feed roller, and the cassette is located in front of the feed roller and is close to the feed roller. The feeding roller is characterized by comprising a separation claw that stands upright at the center position in the width direction of the feed roller, and a presser plate that is rotatably attached to the front upper part of the cassette about the rear end as a fulcrum and that presses both sides of the sheet. paper equipment.
JP17985283A 1983-09-27 1983-09-27 Paper feeder Pending JPS6071430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17985283A JPS6071430A (en) 1983-09-27 1983-09-27 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17985283A JPS6071430A (en) 1983-09-27 1983-09-27 Paper feeder

Publications (1)

Publication Number Publication Date
JPS6071430A true JPS6071430A (en) 1985-04-23

Family

ID=16073036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17985283A Pending JPS6071430A (en) 1983-09-27 1983-09-27 Paper feeder

Country Status (1)

Country Link
JP (1) JPS6071430A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02261743A (en) * 1989-03-31 1990-10-24 Brother Ind Ltd Paper feeder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02261743A (en) * 1989-03-31 1990-10-24 Brother Ind Ltd Paper feeder

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