JPH1025031A - Paper feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper feeding device which holds plural sheets of recording paper in nearly a vertical direction so as to properly feed the paper one by one. SOLUTION: In a paper feeding device 1, plural sheets of recording paper 3 are erected in nearly a vertical direction on a recording paper mounting board 2, and the paper 3 is properly held by both a rear wall 4 of a paper feeding part and a front wall 5 (of the paper feeding part), without being buckled. The recording paper mounting board 2 is arranged in such a manner that it inclines from the front wall 5 of the paper feeding part toward the rear wall 4 of the paper feeding part, so that the upper ends of the recording paper 3 mounted on the recording paper mounting board 2 descend from the front wall 5 of the paper feeding part toward the rear wall 4 of the paper feeding part, leaving a positional discrepancy among them. In this state, the recording paper 3 standing in the forefront on the front wall 5 side of the paper feeding part is sent out by a pick-up roller 9 toward the space between a paper feeding roller 10 and a reverse roller. At this time since these is positional discrepancy among the upper ends of the recording paper 3, the separating performance on the recording paper 3 can be enhanced. In addition, since the recording paper 3, which stands almost vertically, is sent upward in nearly parallel with the recording paper 3, the gravitational force acting on the recording paper 3 standing on and after the recording paper 3 in the forefront can be utilized as the separating force from the recording paper 3 in the forefront.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、給紙装置に関し、
詳細には、複数枚の記録紙を略鉛直方向に保持して１枚
ずつ給紙する給紙装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeder,
More specifically, the present invention relates to a sheet feeding device that holds a plurality of recording sheets in a substantially vertical direction and feeds the recording sheets one by one.

【０００２】[0002]

【従来の技術】ファクシミリ装置、複写機及びプリンタ
等の画像形成装置においては、複数枚のカット状の記録
紙を給紙カセットに収納して、１枚ずつ分離して給紙す
る給紙装置を備えており、このような給紙装置として
は、通常、複数枚の記録紙を略水平状態に給紙カセット
内に載置して、最上段の記録紙から順次１枚ずつ分離し
て給紙する。この場合、最上段の記録紙のみを適切に分
離して搬送し、重送やジャムの発生を防止することが重
要である。2. Description of the Related Art In image forming apparatuses such as facsimile machines, copiers and printers, a paper feeder for storing a plurality of cut recording papers in a paper feed cassette and separating and feeding them one by one is provided. Usually, such a paper feeding device is configured such that a plurality of recording papers are placed in a paper feeding cassette in a substantially horizontal state, and are sequentially separated one by one from the topmost recording paper. I do. In this case, it is important to appropriately separate and convey only the uppermost recording sheet to prevent double feed and jam.

【０００３】そこで、従来、給紙装置においては、上記
給紙装置内に水平に載置された最上段の記録紙をピック
アップローラにより送り出し、当該最上段の記録紙との
摩擦力によってつられて送り出される２番目以降の記録
紙を、搬送経路下面からの摩擦力（フリクションパッ
ド）や戻し力（リバースローラ）等により分離させてい
る。Therefore, conventionally, in a paper feeding device, the uppermost recording paper horizontally placed in the paper feeding device is sent out by a pickup roller, and is sent out by frictional force with the uppermost recording paper. The second and subsequent recording papers are separated by a frictional force (friction pad) or a return force (reverse roller) from the lower surface of the conveyance path.

【０００４】このフリクションパッドやリバースローラ
による記録紙の分離においては、ピックアップローラが
最上段の記録紙に当接して当該最上段の記録紙を送り出
す際に、つられて送り出され始めた２番目以降の記録紙
の枚数が多い場合や、記録紙の紙質が記録紙間の摩擦力
の強いものである場合には、フリクションパッドやリバ
ースローラによる方法では、適切に２枚目以降の記録紙
を分離しきれずにフリクションパッド及びリバースロー
ラの位置を過ぎても複数の記録紙が搬送されるという、
いわゆる重送を生じることがあった。In the separation of the recording paper by the friction pad or the reverse roller, when the pickup roller comes into contact with the uppermost recording paper and feeds out the uppermost recording paper, the pickup roller starts to be fed and the second and subsequent recording papers are started. When the number of recording sheets is large or when the quality of the recording sheets is high, the method using a friction pad or a reverse roller separates the second and subsequent sheets appropriately. It is said that multiple recording papers are conveyed even past the position of the friction pad and the reverse roller without being
A so-called double feed could occur.

【０００５】そこで、従来、種々の記録紙の分離方法が
提案されており、例えば、特開昭５５−７４９３０号公
報においては、水平に載置された記録紙の１番上の記録
紙を吸着した上で、２番目以降の記録紙との間隙にエア
ーを吹き付けることによって分離させる方法が提案され
ている。また、特開平２−１６３２３３号公報において
は、給紙装置に水平に載置された記録紙の下部から空気
を圧入して、記録紙を予め捌いておくことにより、記録
紙間の摩擦力を弱めて分離させる方法が提案されてい
る。Therefore, various methods of separating recording paper have been proposed. For example, Japanese Patent Application Laid-Open No. 55-74930 discloses a method of adsorbing the topmost recording paper of a horizontally placed recording paper. Then, there has been proposed a method in which air is blown into a gap between the second and subsequent recording papers to separate the recording paper. Further, in Japanese Patent Application Laid-Open No. Hei 2-163233, the frictional force between the recording papers is reduced by press-in air from the lower part of the recording papers placed horizontally in a paper feeding device and separating the recording papers in advance. A method of weakening and separating has been proposed.

【０００６】[0006]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の給紙装置にあっては、記録紙を１枚ずつ分離
する上でなお、不十分であり、また、装置が大型化し
て、コストが高くなるという問題があった。However, such a conventional sheet feeding apparatus is still insufficient for separating recording sheets one by one, and the apparatus is increased in size and cost. There was a problem that becomes high.

【０００７】すなわち、記録紙に空気を吹き付けて記録
紙間に空気層を形成し、記録紙を予め捌いておくことに
よって、記録紙の分離性能は向上するが、この記録紙の
捌きを行うために、特開平２−１６３２３３号公報記載
の方法では、水平に載置された記録紙の下部から空気を
圧入して、記録紙面に向けてエアーを噴射する関係上、
噴射流自体の勢いが捌き動作に利用されるわけではな
く、捌き効率が悪く、特に、積載された記録紙群の下部
からエアーを圧入する場合に、記録紙群全体を浮遊させ
るほどの気圧を実現させなければならず、記録紙積載部
の機密性や耐圧性を高める必要性、さらには、高性能の
エアー圧入機構を設置する必要性があり、給紙装置が大
型で高価なものとなるという問題があった。[0007] That is, by blowing air onto the recording paper to form an air layer between the recording papers and separating the recording paper in advance, the separation performance of the recording paper is improved. In the method described in Japanese Patent Application Laid-Open No. 2-163233, air is press-fitted from the lower part of a horizontally placed recording paper, and the air is jetted toward the recording paper.
The momentum of the jet flow itself is not used for the loosening operation, and the loosening efficiency is poor.Especially, when air is injected from the bottom of the stacked recording paper group, the air pressure enough to float the entire recording paper group is It is necessary to increase the confidentiality and pressure resistance of the recording paper stacking section, and it is necessary to install a high-performance air press-fitting mechanism, which makes the paper feeding device large and expensive There was a problem.

【０００８】また、特開昭５５−７４９３０号公報記載
の搬送装置においては、水平に載置された複数枚の記録
紙の最上段の記録紙に向かって空気を吹き付けているた
め、記録紙端部が揃った状態でエアーが吹き付けられる
こととなり、記録紙間にエアーが入り込み難く適切に最
上段の記録紙のみを分離させることができない。また、
この場合、記録紙をバキュームコンベアで吸着して搬送
しているが、バキューム機構を設けると、給紙装置が大
型化するとともに高価なものとなるという問題があっ
た。Further, in the conveying apparatus described in Japanese Patent Application Laid-Open No. 55-74930, air is blown toward the uppermost recording sheet of a plurality of recording sheets placed horizontally, so that the recording sheet ends. Since the air is blown in a state where the copies are aligned, it is difficult for the air to enter between the recording sheets, and it is not possible to appropriately separate only the topmost recording sheet. Also,
In this case, the recording paper is conveyed while being sucked by a vacuum conveyor. However, if a vacuum mechanism is provided, there is a problem that the paper feeder becomes large and expensive.

【０００９】そこで、本出願人は、先に、縦型にセット
した記録紙束から一枚ずつ給紙する縦型給紙装置におい
て、給紙時に重送された記録紙を分離する分離手段と、
縦型にセットされた記録紙の厚さ方向へのたわみ変形を
防止する座屈防止手段とを備えたことを特徴とする給紙
装置を提案している（特開平６−７２５６３号公報参
照）。In view of the above, the applicant of the present invention has previously described a separating device for separating a recording sheet which has been multi-fed at the time of sheet feeding, in a vertical sheet feeding apparatus for feeding sheets one by one from a vertically set recording sheet bundle. ,
There has been proposed a sheet feeding device provided with a buckling prevention means for preventing a vertical deformation of a recording sheet from bending in a thickness direction (see JP-A-6-72563). .

【００１０】この給紙装置によれば、縦型にセットされ
た記録紙の座屈を防止しつつ、記録紙の自重により重送
を防止して、給紙装置を小型で安価なものとすることが
できる。According to this paper feeder, double feeding is prevented by the weight of the recording paper while preventing buckling of the vertically set recording paper, thereby making the paper feeder compact and inexpensive. be able to.

【００１１】ところが、この給紙装置によれば、縦型に
セットした記録紙束が座屈するのを防止するために、座
屈防止手段により記録紙束を面方向に押圧しているた
め、給紙される記録紙と当該記録紙に隣接する記録紙と
が圧接され、記録紙間の摩擦力が増大して、記録紙が重
送される確率が多くなるおそれがあった。However, according to this paper feeding device, the buckling prevention means presses the recording paper bundle in the surface direction in order to prevent the vertically set recording paper bundle from buckling. The recording paper to be printed and the recording paper adjacent to the recording paper are pressed against each other, the frictional force between the recording papers is increased, and the probability that the recording papers are multi-fed may increase.

【００１２】そこで、請求項１記載の発明は、複数枚の
記録紙を記録紙載置部の底面上に略鉛直方向にセットす
るとともに、記録紙の後面側を後壁面で、記録紙の前面
側を前壁面で保持し、記録紙載置部の底面を、前壁面側
から後壁面側に向かって下降する所定角度の傾斜面に形
成することにより、前壁面側の先頭の記録紙の上端を他
の記録紙の上端よりも上方向にずらせて載置させ、記録
紙の給紙時の分離性能を向上させることのできる給紙装
置を提供することを目的としている。Therefore, according to the first aspect of the present invention, a plurality of recording papers are set in a substantially vertical direction on a bottom surface of a recording paper mounting portion, and the rear side of the recording paper is a rear wall surface and the front side of the recording paper is a front side. Side is held by the front wall surface, and the bottom surface of the recording paper mounting portion is formed as an inclined surface having a predetermined angle descending from the front wall surface side to the rear wall side, so that the upper end of the first recording paper on the front wall side is formed. It is an object of the present invention to provide a paper feeder capable of displacing the paper in an upward direction from the upper end of another recording paper and improving the separation performance when feeding the recording paper.

【００１３】請求項２記載の発明は、複数枚の記録紙を
記録紙載置部の底面上に略鉛直方向にセットするととも
に、記録紙の後面側を後壁面で、記録紙の前面側を前壁
面で保持し、記録紙載置部の後壁面と前壁面を、前壁面
側に所定角度の傾斜する傾斜面に形成することにより、
前壁面側の先頭の記録紙の上端を他の記録紙の上端より
も上方向にずらせて載置させ、記録紙の給紙時の分離性
能を向上させることのできる給紙装置を提供することを
目的としている。According to a second aspect of the present invention, a plurality of sheets of recording paper are set in a substantially vertical direction on the bottom surface of a recording sheet mounting portion, the rear side of the recording sheet is a rear wall surface, and the front side of the recording sheet is a front side. By holding on the front wall surface, the rear wall surface and the front wall surface of the recording paper mounting portion are formed on a slope inclined at a predetermined angle toward the front wall side,
Provided is a paper feeder capable of improving the separation performance when feeding recording paper by placing the upper end of the first recording paper on the front wall side shifted upward from the upper ends of other recording paper. It is an object.

【００１４】請求項３記載の発明は、記録紙載置部の底
面を、前壁面側から後面側に向かって下降する所定角度
の傾斜面に形成し、後壁面と前壁面を、鉛直方向と底面
の傾斜面に対して直角方向との間の所定の傾斜角度だけ
後壁面側に傾斜する傾斜面に形成することにより、前壁
面側の先頭の記録紙の上端を他の記録紙の上端よりもさ
らに上方向にずらせて載置させるとともに、先頭の記録
紙以外の記録紙が先頭の記録紙にかかる重量を低減さ
せ、記録紙の給紙時の分離性能をさらに向上させること
のできる給紙装置を提供することを目的としている。According to a third aspect of the present invention, the bottom surface of the recording paper placing portion is formed as an inclined surface having a predetermined angle descending from the front wall surface side toward the rear surface side, and the rear wall surface and the front wall surface are defined in a vertical direction. By forming the inclined surface inclined toward the rear wall side by a predetermined inclination angle between the direction perpendicular to the inclined surface of the bottom surface, the upper end of the leading recording paper on the front wall side is higher than the upper end of the other recording paper. Paper that can be further shifted upward, and the weight of the recording paper other than the top recording paper on the top recording paper is reduced, further improving the separation performance when feeding the recording paper. It is intended to provide a device.

【００１５】請求項４記載の発明は、先頭の記録紙を当
該記録紙に平行に上方向に給紙することにより、先頭以
降の記録紙に作用する重力を先頭の記録紙との分離力と
して利用して、より一層記録紙の給紙時の分離性能を向
上させ、重送の発生をより一層防止することのできる給
紙装置を提供することを目的としている。According to a fourth aspect of the present invention, the leading recording paper is fed upward in parallel with the recording paper, so that the gravitational force acting on the recording paper after the leading paper is used as a separating force from the leading recording paper. It is an object of the present invention to provide a paper feeder capable of further improving the separation performance when feeding recording paper and further preventing the occurrence of double feeding.

【００１６】請求項５記載の発明は、先頭の記録紙の上
端と当該先頭の記録紙に隣接する記録紙の上端とのずれ
の部分に空気を噴出することにより、上端のずれを利用
して先頭の記録紙と先頭の記録紙に隣接する次の記録紙
との間に空気を吹き込んで、先頭の記録紙と次の記録紙
との間に効率的に空気の層を形成して、より一層効果的
に記録紙を分離させることのできる給紙装置を提供する
ことを目的としている。According to a fifth aspect of the present invention, the displacement of the upper end is utilized by ejecting air to a portion between the upper end of the leading recording sheet and the upper end of the recording sheet adjacent to the leading recording sheet. Air is blown between the first recording sheet and the next recording sheet adjacent to the first recording sheet to efficiently form an air layer between the first recording sheet and the next recording sheet. It is an object of the present invention to provide a sheet feeding device capable of separating recording sheets more effectively.

【００１７】請求項６記載の発明は、底面に後壁面と前
壁面方向に延在して形成された通風スリットを通して底
面上に略鉛直方向に載置されている複数枚の記録紙に空
気を噴出することにより、記録紙積載部の機密性や耐圧
力性を必要とすることなく、それ程強くない空気流を利
用して記録紙間に効率的に空気の層を形成し、載置され
ている複数枚の記録紙を予め捌いて、より一層効果的に
記録紙を１枚ずつ分離させることのできる給紙装置を提
供することを目的としている。According to a sixth aspect of the present invention, air is supplied to a plurality of recording papers placed substantially vertically on the bottom surface through ventilation slits formed on the bottom surface and extending in the direction of the rear wall surface and the front wall surface. By jetting, an air layer is efficiently formed between the recording papers by using a not so strong air flow without requiring the confidentiality and pressure resistance of the recording paper loading section, It is an object of the present invention to provide a sheet feeding device capable of separating a plurality of recording sheets in advance and separating the recording sheets more effectively one by one.

【００１８】請求項７記載の発明は、空気噴出手段を、
略鉛直方向に複数枚の記録紙が載置された底面の通風ス
リットに沿って移動しつつ、記録紙に空気を噴出するこ
とにより、空気流を記録紙群の一点に集中して噴射する
とともに、他の記録紙部分に空気の圧力がかからないよ
うにして、効率的に記録紙を捌いて、より安価で、小型
の低い性能の空気噴出手段であっても、適切に記録紙間
に空気を噴入し、より一層効果的に記録紙を１枚ずつ分
離させることのできる給紙装置を提供することを目的と
している。According to a seventh aspect of the present invention, the air blowing means includes
While moving along the ventilation slit on the bottom surface on which a plurality of recording papers are placed in a substantially vertical direction, air is blown out to the recording paper, so that the air flow is concentrated and jetted to one point of the recording paper group. In order to prevent air pressure from being applied to the other recording paper portions, the recording paper can be efficiently separated, and air can be appropriately discharged between the recording papers even with a cheaper, smaller, and lower-performance air ejecting means. It is an object of the present invention to provide a sheet feeding device that can inject and separate recording sheets more effectively one by one.

【００１９】[0019]

【課題を解決するための手段】請求項１記載の発明の給
紙装置は、記録紙載置部の底面上に複数枚のカット状の
記録紙が略鉛直方向にセットされ、当該略鉛直方向にセ
ットされた複数枚の前記記録紙の後面側を後壁面で保持
し、当該記録紙の前面側を前壁面で保持し、前記前壁面
側の先頭の前記記録紙から１枚ずつ分離して給紙すると
ともに、前記後壁面と前記前壁面のうち少なくとも一方
が相互に近接する方向に移動して前記記録紙を保持する
給紙装置であって、前記記録紙載置部の前記底面が、前
記前壁面側から前記後壁面側に向かって下降する所定角
度の傾斜面に形成され、前記前壁面側の先頭の前記記録
紙の上端を他の前記記録紙の上端よりも上方向にずらせ
て載置することにより、上記目的を達成している。According to a first aspect of the present invention, there is provided a paper feeding apparatus in which a plurality of cut recording papers are set in a substantially vertical direction on a bottom surface of a recording paper mounting portion. The rear side of the plurality of recording papers set on the rear side is held by the rear wall surface, the front side of the recording paper is held by the front wall surface, and the recording paper is separated one by one from the first recording paper on the front wall side. A sheet feeding device that feeds and holds the recording sheet by moving in a direction in which at least one of the rear wall surface and the front wall surface approaches each other, wherein the bottom surface of the recording sheet placement unit is It is formed on an inclined surface of a predetermined angle descending from the front wall surface side toward the rear wall surface, and the upper end of the leading recording paper on the front wall surface is shifted upward from the upper ends of the other recording papers. The above-mentioned object is achieved by mounting.

【００２０】上記構成によれば、複数枚の記録紙を記録
紙載置部の底面上に略鉛直方向にセットするとともに、
記録紙の後面側を後壁面で、記録紙の前面側を前壁面で
保持し、記録紙載置部の底面を、前壁面側から後壁面側
に向かって下降する所定角度の傾斜面に形成するので、
前壁面側の先頭の記録紙の上端を他の記録紙の上端より
も上方向にずらせて載置させることができ、記録紙の給
紙時の分離性能を向上させることができる。According to the above configuration, a plurality of recording papers are set substantially vertically on the bottom surface of the recording paper mounting portion, and
The rear side of the recording paper is held by the rear wall surface, the front side of the recording paper is held by the front wall surface, and the bottom surface of the recording paper mounting portion is formed as a slope with a predetermined angle descending from the front wall side to the rear wall side. So
The top end of the leading recording paper on the front wall side can be placed so as to be shifted upward from the top ends of the other recording papers, and the separation performance when the recording paper is fed can be improved.

【００２１】請求項２の発明の給紙装置は、記録紙載置
部の底面上に複数枚のカット状の記録紙が略鉛直方向に
セットされ、当該略鉛直方向にセットされた複数枚の前
記記録紙の後面側を後壁面で保持し、当該記録紙の前面
側を前壁面で保持し、前記前壁面側の先頭の前記記録紙
から１枚ずつ分離して給紙するとともに、前記後壁面と
前記前壁面のうち少なくとも一方が相互に近接する方向
に移動して前記記録紙を保持する給紙装置であって、前
記後壁面と前記前壁面が、前記前壁面側に所定角度傾斜
する傾斜面に形成され、前記前壁面側の先頭の前記記録
紙の上端を他の前記記録紙の上端よりも上方向にずらせ
て載置することにより、上記目的を達成している。According to a second aspect of the present invention, a plurality of cut recording sheets are set substantially vertically on the bottom surface of the recording sheet mounting portion, and the plurality of sheets set substantially in the vertical direction are provided. The rear side of the recording paper is held by a rear wall surface, the front side of the recording paper is held by a front wall surface, and the recording paper is separated and fed one by one from the leading recording paper on the front wall side. A paper feeder for holding the recording sheet by moving at least one of a wall surface and the front wall surface in a direction approaching each other, wherein the rear wall surface and the front wall are inclined at a predetermined angle toward the front wall side. The above object is achieved by placing the recording paper, which is formed on an inclined surface, on the front wall surface side such that the top end of the leading recording paper is shifted upward from the top ends of the other recording papers.

【００２２】上記構成によれば、複数枚の記録紙を記録
紙載置部の底面上に略鉛直方向にセットするとともに、
記録紙の後面側を後壁面で、記録紙の前面側を前壁面で
保持し、記録紙載置部の後壁面と前壁面を、前壁面側に
所定角度の傾斜する傾斜面に形成するので、前壁面側の
先頭の記録紙の上端を他の記録紙の上端よりも上方向に
ずらせて載置させることができ、記録紙の給紙時の分離
性能を向上させることができる。According to the above arrangement, a plurality of recording papers are set substantially vertically on the bottom surface of the recording paper mounting portion, and
Since the rear side of the recording paper is held by the rear wall surface and the front side of the recording paper is held by the front wall surface, the rear wall and the front wall of the recording paper mounting portion are formed as inclined surfaces inclined at a predetermined angle to the front wall side. In addition, the upper end of the leading recording paper on the front wall side can be placed so as to be shifted upward from the upper ends of the other recording papers, and the separation performance when the recording paper is fed can be improved.

【００２３】請求項３記載の発明の給紙装置は、記録紙
載置部の底面上に複数枚のカット状の記録紙が略鉛直方
向にセットされ、当該略鉛直方向にセットされた複数枚
の前記記録紙の後面側を後壁面で保持し、当該記録紙の
前面側を前壁面で保持し、前記前壁面側の先頭の前記記
録紙から１枚ずつ分離して給紙するとともに、前記後壁
面と前記前壁面のうち少なくとも一方が相互に近接する
方向に移動して前記記録紙を保持する給紙装置であっ
て、前記記録紙載置部の前記底面が、前記前壁面側から
前記後壁面側に向かって下降する所定角度の傾斜面に形
成され、前記後壁面と前記前壁面が、鉛直方向と前記底
面の傾斜面に対して直角方向との間の所定の傾斜角度だ
け前記後壁面側に傾斜する傾斜面に形成され、前記前壁
面側の先頭の前記記録紙の上端を他の前記記録紙の上端
から上方向にずらせて載置することにより、上記目的を
達成している。According to a third aspect of the present invention, a plurality of cut recording sheets are set substantially vertically on the bottom surface of the recording sheet mounting portion, and the plurality of sheet sheets set substantially in the vertical direction. The rear side of the recording paper is held by a rear wall surface, the front side of the recording paper is held by a front wall surface, and the recording paper is separated and fed one by one from the leading recording paper on the front wall side. At least one of a rear wall surface and the front wall surface moves in a direction in which the rear wall surface and the front wall move close to each other to hold the recording paper. The rear wall surface and the front wall surface are formed on an inclined surface having a predetermined angle descending toward the rear wall surface side, and the rear wall surface and the front wall surface have a predetermined inclination angle between a vertical direction and a direction perpendicular to the inclined surface of the bottom surface. The front surface of the front wall is formed on an inclined surface inclined toward a wall surface. By placing to be shifted upward to the upper end of the paper from the upper end of the other of said recording paper, it has achieved the above objects.

【００２４】上記構成によれば、記録紙載置部の底面
を、前壁面側から後壁面側に向かって下降する所定角度
の傾斜面に形成し、後壁面と前壁面を、鉛直方向と底面
の傾斜面に対して直角方向との間の所定の傾斜角度だけ
後壁面側に傾斜する傾斜面に形成しているので、前壁面
側の先頭の記録紙の上端を他の記録紙の上端よりもさら
に上方向にずらせて載置させることができるとともに、
先頭の記録紙以外の記録紙が先頭の記録紙にかかる重量
を低減させることができ、記録紙の給紙時の分離性能を
さらに向上させることができる。According to the above construction, the bottom surface of the recording paper placing portion is formed as an inclined surface having a predetermined angle descending from the front wall surface side toward the rear wall surface, and the rear wall surface and the front wall surface are defined in the vertical direction and the bottom surface. Is formed on the rear wall side at a predetermined angle between the right angle direction and the rear surface side, so that the upper end of the leading recording paper on the front wall side is higher than the upper end of the other recording paper. Can be further shifted upward and placed,
The weight of the recording paper other than the first recording paper on the first recording paper can be reduced, and the separation performance when the recording paper is fed can be further improved.

【００２５】上記各場合において、例えば、請求項４に
記載するように、前記先頭の記録紙は、当該記録紙に平
行に上方向に給紙されるものであってもよい。In each of the above cases, for example, the leading recording sheet may be fed in an upward direction parallel to the recording sheet.

【００２６】上記構成によれば、先頭の記録紙を当該記
録紙に平行に上方向に給紙するので、先頭以降の記録紙
に作用する重力を先頭の記録紙との分離力として利用す
ることができ、より一層記録紙の給紙時の分離性能を向
上させて、重送の発生をより一層防止することができ
る。According to the above configuration, the leading recording paper is fed upward in parallel with the recording paper, so that the gravity acting on the recording paper following the leading is used as a separating force from the leading recording paper. Therefore, the separation performance when recording paper is fed can be further improved, and the occurrence of double feeding can be further prevented.

【００２７】また、例えば、請求項５に記載するよう
に、前記給紙装置は、前記先頭の記録紙の上端と当該先
頭の記録紙に隣接する前記記録紙の上端とのずれの部分
に空気を噴出する空気噴出手段を、さらに備えていても
よい。Further, for example, as set forth in claim 5, the paper feeding device is configured such that air is supplied to a portion where the upper end of the leading recording sheet is shifted from the upper end of the recording sheet adjacent to the leading recording sheet. Air ejecting means for ejecting air may be further provided.

【００２８】上記構成によれば、先頭の記録紙の上端と
当該先頭の記録紙に隣接する記録紙の上端とのずれの部
分に空気を噴出するので、記録紙上端のずれを利用して
先頭の記録紙と先頭の記録紙に隣接する次の記録紙との
間に空気を吹き込むことができ、先頭の記録紙と次の記
録紙との間に効率的に空気の層を形成して、より一層効
果的に記録紙を分離させることができる。According to the above arrangement, since air is blown to a position where the upper end of the leading recording paper is shifted from the upper end of the recording paper adjacent to the leading recording paper, the deviation of the leading end of the recording paper is utilized by utilizing the deviation of the upper end of the recording paper. Air can be blown between the first recording paper and the next recording paper adjacent to the first recording paper, and an air layer is efficiently formed between the first recording paper and the next recording paper, The recording paper can be more effectively separated.

【００２９】さらに、例えば、請求項６に記載するよう
に、前記給紙装置は、前記記録紙載置部の前記底面に、
前記後壁面と前記前壁面方向に延在して形成された通風
スリットと、前記通風スリットを通して前記底面上に略
鉛直方向に載置されている前記記録紙に空気を噴出する
空気噴出手段と、をさらに備えていてもよい。Further, for example, as set forth in claim 6, the paper feeding device is provided on the bottom surface of the recording paper mounting portion.
A ventilation slit formed to extend in the direction of the rear wall surface and the front wall surface, and air blowing means for blowing air to the recording paper placed substantially vertically on the bottom surface through the ventilation slit, May be further provided.

【００３０】上記構成によれば、記録紙載置部の底面に
後壁面と前壁面方向に延在して形成された通風スリット
を通して底面上に略鉛直方向に載置されている複数枚の
記録紙に空気を噴出するので、記録紙積載部の機密性や
耐圧力性を必要とすることなく、また、それ程強くない
空気流を利用して、記録紙間に効率的に空気の層を形成
することができ、載置されている複数枚の記録紙を予め
捌いて、より一層効果的に記録紙を１枚ずつ分離させる
ことができる。According to the above configuration, a plurality of recording papers placed in a substantially vertical direction on the bottom surface through the ventilation slits formed to extend in the direction of the rear wall surface and the front wall surface on the bottom surface of the recording paper mounting portion. Since air is blown onto the paper, an air layer is efficiently formed between the recording papers without the need for confidentiality and pressure resistance of the recording paper loading section, and using a less powerful air flow. It is possible to separate the recording sheets one by one more effectively by previously separating a plurality of the recording sheets placed.

【００３１】また、例えば、請求項７に記載するよう
に、前記空気噴出手段は、前記通風スリットに沿って移
動しつつ、前記記録紙に空気を噴出することにより、上
記目的を達成している。Also, for example, as described in claim 7, the air ejecting means achieves the above object by ejecting air to the recording paper while moving along the ventilation slit. .

【００３２】上記構成によれば、空気噴出手段を、略鉛
直方向に複数枚の記録紙が載置された底面の通風スリッ
トに沿って移動しつつ、記録紙に空気を噴出するので、
空気流を記録紙群の一点に集中して噴射することができ
るとともに、他の記録紙部分に空気の圧力がかからない
ようにすることができ、効率的に記録紙を捌いて、より
安価で、小型の低い性能の空気噴出手段であっても、適
切に記録紙間に空気を噴入することができる。したがっ
て、より一層効果的に記録紙を１枚ずつ分離させること
ができる。According to the above construction, the air ejecting means ejects air to the recording paper while moving in the substantially vertical direction along the ventilation slit on the bottom surface on which a plurality of recording papers are placed.
The air flow can be intensively jetted to one point of the recording paper group, and the pressure of the air can be prevented from being applied to the other recording paper parts. Even a small, low-performance air ejection unit can properly inject air between the recording sheets. Therefore, the recording paper can be separated more effectively one by one.

【００３３】[0033]

【発明の実施の形態】以下、本発明の好適な実施の形態
を添付図面に基づいて詳細に説明する。なお、以下に述
べる実施の形態は、本発明の好適な実施の形態であるか
ら、技術的に好ましい種々の限定が付されているが、本
発明の範囲は、以下の説明において特に本発明を限定す
る旨の記載がない限り、これらの態様に限られるもので
はない。Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

【００３４】図１は、本発明の給紙装置の第１の実施の
形態を適用した給紙装置１を示す図であり、本実施の形
態は、記録紙を縦方向にセットする記録紙載置部の底面
を傾斜させて、記録紙を上方に送り出すもので、請求項
１及び請求項４に対応するものである。FIG. 1 is a view showing a sheet feeding apparatus 1 to which a first embodiment of a sheet feeding apparatus according to the present invention is applied. In this embodiment, a recording sheet loading apparatus for setting recording sheets in a vertical direction is shown. The recording paper is sent upward by tilting the bottom surface of the mounting portion, and corresponds to claims 1 and 4.

【００３５】図１において、給紙装置１は、記録紙積載
板２、給紙部後壁４、給紙部前壁５、記録紙スライドベ
ルト６、プーリー７、８、ピックアップローラ９、給紙
ローラ１０及びリバースローラ１１等を備えており、記
録紙積載板（記録紙載置部の底面）２上に複数枚の記録
紙３が略鉛直方向に立てた状態でセットされる。In FIG. 1, a paper feeding device 1 includes a recording paper loading plate 2, a paper feeding unit rear wall 4, a paper feeding unit front wall 5, a recording paper slide belt 6, pulleys 7, 8, a pickup roller 9, The apparatus includes a roller 10, a reverse roller 11, and the like. A plurality of recording papers 3 are set on a recording paper loading plate (a bottom surface of a recording paper placement unit) 2 in a substantially vertical direction.

【００３６】記録紙積載板２は、給紙部前壁５から給紙
部後壁４に向かって下降する状態で所定角度傾斜して配
設されており、記録紙積載板２上に複数枚の記録紙３が
略鉛直方向に立った状態で載置される。The recording paper stacking plate 2 is disposed to be inclined at a predetermined angle while descending from the front wall 5 of the paper feeding section toward the rear wall 4 of the paper feeding section. Is placed in a state of standing substantially vertically.

【００３７】給紙装置１は、記録紙積載板２上に立った
状態でセットされた複数枚の記録紙３の最後端の記録紙
３の後面（図１中左側の面）を給紙部後壁（後壁面）４
が保持し、複数枚の記録紙３の先頭端の記録紙３の前面
（図１中右側の面）を給紙部前壁（前壁面）５が保持し
ている。給紙部後壁４及び給紙部前壁５は、略鉛直方向
に配設されている。The paper feeder 1 feeds the rear surface (left side in FIG. 1) of the last recording paper 3 of the plurality of recording papers 3 set in a state of standing on the recording paper stacking plate 2. Rear wall (rear wall) 4
The front surface (the right wall in FIG. 1) of the leading end of the plurality of recording sheets 3 is held by the front wall (front wall surface) 5 of the sheet feeding section. The paper feeding section rear wall 4 and the paper feeding section front wall 5 are arranged in a substantially vertical direction.

【００３８】給紙部後壁４は、図示しないモータとギヤ
機構等の駆動機構により、図１中両矢印で示すように、
給紙部前壁５方向に移動され、常に、記録紙３の後面を
保持する。給紙部後壁４は、記録紙３の縦方向の長さ以
上の縦方向の長さを有しており、記録紙３の後面を適切
に保持する。As shown by a double-headed arrow in FIG. 1, the rear wall 4 of the paper feeding section is driven by a driving mechanism such as a motor and a gear mechanism (not shown).
The recording paper 3 is moved in the direction of the front wall 5 of the paper feeding unit and always holds the rear surface of the recording paper 3. The paper feeding section rear wall 4 has a vertical length that is equal to or greater than the vertical length of the recording paper 3 and appropriately holds the rear surface of the recording paper 3.

【００３９】給紙部前壁５は、記録紙３の縦方向の長さ
よりも所定長さだけ短く形成されており、記録紙３の先
端部分が給紙部前壁５の上端からさらに上方向に突出し
た状態となっている。この給紙部前壁５の上端からさら
に上方向に突出した記録紙３の先端部分にピックアップ
ローラ９が、図１に両矢印で示すように、離接可能に当
接し、ピックアップローラ９は、記録紙積載板２上に載
置された複数枚の記録紙３のうち先頭の記録紙３に当接
して回転することにより、当該記録紙３を記録紙３に平
行に上方向に送り出す。The paper feed section front wall 5 is formed to be shorter than the vertical length of the recording paper 3 by a predetermined length, and the leading end of the recording paper 3 is further upwardly from the upper end of the paper feed section front wall 5. It is in a state of protruding. A pickup roller 9 abuts on the leading end portion of the recording paper 3 projecting further upward from the upper end of the paper supply section front wall 5 as shown by a double-headed arrow in FIG. When the recording paper 3 placed on the recording paper loading plate 2 rotates while being in contact with the first recording paper 3, the recording paper 3 is sent out in an upward direction parallel to the recording paper 3.

【００４０】ピックアップローラ９の上方には、給紙ロ
ーラ１０が配設されており、給紙ローラは、図示しない
モータにより、図１中矢印方向に回転駆動される。給紙
ローラ１０には、リバースローラ１１が当接しており、
リバースローラ１１には、図示しないモータの回転力が
トルクリミッタ（図示略）を介して伝達されている。図
示しないモータによるリバースローラ１１の回転方向
は、給紙ローラ１０の回転方向と逆方向であるが、トル
クリミッタは、リバースローラ１１にかかる負荷が所定
負荷以下であると、モータの回転力をリバースローラ１
１に伝達するが、負荷が所定負荷を超えると、リバース
ローラ１１をフリーの状態とするため、リバースローラ
１１は、該リバースローラ１１にかかる負荷が所定負荷
以下のときには、給紙ローラ１０と反対方向に回転する
が、負荷が所定負荷を超えると、給紙ローラ１０と同じ
方向に連れ回りする。給紙ローラ１０とリバースローラ
１１は、ピックアップローラ９により送り出されてきた
記録紙３をリバースローラ１１が搬送方向と反対方向に
回転することにより、記録紙３を１枚ずつ分離し、記録
紙３が１枚のみに分離されると、リバースローラ１１に
かかる負荷が所定負荷を超え、リバースローラ１１が給
紙ローラ１０と連れ回って、記録紙３を搬送する。A paper feed roller 10 is disposed above the pickup roller 9, and the paper feed roller is driven to rotate in a direction indicated by an arrow in FIG. 1 by a motor (not shown). A reverse roller 11 is in contact with the paper feed roller 10,
The torque of a motor (not shown) is transmitted to the reverse roller 11 via a torque limiter (not shown). The rotation direction of the reverse roller 11 by the motor (not shown) is opposite to the rotation direction of the paper feed roller 10, but the torque limiter reverses the rotational force of the motor when the load on the reverse roller 11 is equal to or less than a predetermined load. Roller 1
1 when the load exceeds a predetermined load, the reverse roller 11 is set in a free state. Therefore, when the load on the reverse roller 11 is equal to or less than the predetermined load, the reverse roller 11 is opposite to the sheet feeding roller 10. However, when the load exceeds a predetermined load, the paper feed roller 10 rotates in the same direction. The paper feed roller 10 and the reverse roller 11 separate the recording paper 3 one by one by rotating the reverse roller 11 in a direction opposite to the transport direction of the recording paper 3 sent out by the pickup roller 9. Is separated into only one sheet, the load applied to the reverse roller 11 exceeds a predetermined load, and the reverse roller 11 follows the sheet feed roller 10 to convey the recording paper 3.

【００４１】給紙ローラ１０とリバースローラ１１の上
方には、搬送路１２が形成されており、給紙ローラ１０
とリバースローラ１１に送り出された記録紙３を案内し
て、図示しない記録部等に搬送する。A transport path 12 is formed above the paper feed roller 10 and the reverse roller 11.
Then, the recording paper 3 sent out to the reverse roller 11 is guided and conveyed to a recording unit (not shown).

【００４２】上記記録紙スライドベルト６は、記録紙積
載板２の幅方向両側に配設されており、プーリー７とプ
ーリー８に係合されている。記録紙スライドベルト６
は、所定幅を有したゴム等で形成され、記録紙スライド
ベルト６上には、記録紙積載板２上に載置された記録紙
３の幅方向両端部が載置される。記録紙スライドベルト
６は、プーリー７、８が図示しないモータにより記録紙
積載板２上の部分が給紙部後壁４側から給紙部前壁５方
向に回転移動し、記録紙３を給紙部前壁５方向にスムー
ズに移動させる。なお、記録紙スライドベルト６は、本
実施の形態では、ゴムにより形成されているが、ゴムに
限るものではなく、適切に記録紙３を移動させることの
できるものであれば、どのようなものであってもよい。The recording paper slide belt 6 is disposed on both sides in the width direction of the recording paper loading plate 2 and is engaged with a pulley 7 and a pulley 8. Recording paper slide belt 6
Is formed of rubber or the like having a predetermined width, and both ends in the width direction of the recording paper 3 placed on the recording paper loading plate 2 are placed on the recording paper slide belt 6. The pulleys 7 and 8 of the recording paper slide belt 6 are rotated by a motor (not shown) so that the portion on the recording paper loading plate 2 is rotated from the paper supply unit rear wall 4 toward the paper supply unit front wall 5 to supply the recording paper 3. The paper is moved smoothly in the direction of the front wall 5. Although the recording paper slide belt 6 is formed of rubber in the present embodiment, it is not limited to rubber, but may be any material as long as the recording paper 3 can be moved appropriately. It may be.

【００４３】また、本実施の形態においては、記録紙ス
ライドベルト６と給紙部後壁４を移動させることによ
り、記録紙３を常に給紙部後壁４と給紙部前壁５により
挟み込んで記録紙３を座屈させることなく保持している
が、給紙部後壁４のみを移動させて、記録紙スライドベ
ルト６を省いてもよい。In the present embodiment, the recording paper 3 is always sandwiched between the paper supply unit rear wall 4 and the paper supply unit front wall 5 by moving the recording paper slide belt 6 and the paper supply unit rear wall 4. , The recording paper 3 is held without buckling, but the recording paper slide belt 6 may be omitted by moving only the paper feeding unit rear wall 4.

【００４４】次に、本実施の形態の動作について、以下
説明する。給紙装置１は、複数枚の記録紙３が記録紙積
載板２上に立てた状態で載置され、その記録紙３の後面
を給紙部後壁４が、記録紙３の前面を給紙部前壁５が保
持する。このとき、給紙部後壁４が給紙部前壁５方向に
移動可能に設けられているので、記録紙３は、記録紙積
載板２上で、給紙部後壁４と給紙部前壁５により挟まれ
た状態で座屈することなく、適切に保持される。Next, the operation of this embodiment will be described below. The paper feeding device 1 has a plurality of recording papers 3 placed thereon in a state of standing on a recording paper loading plate 2, and a rear surface of the recording paper 3 is fed by a paper feeding section rear wall 4 and a front surface of the recording paper 3 is fed. The paper part front wall 5 holds. At this time, since the paper feeding unit rear wall 4 is provided so as to be movable in the direction of the paper feeding unit front wall 5, the recording paper 3 is placed on the recording paper loading plate 2 with the paper feeding unit rear wall 4 and the paper feeding unit. It is properly held without buckling while being sandwiched by the front wall 5.

【００４５】そして、記録紙積載板２が給紙部前壁５か
ら給紙部後壁４方向に向かって傾斜した傾斜面に形成さ
れているため、記録紙積載板２上の記録紙３は、その上
端が給紙部前壁５から給紙部後壁４方向に向かって降下
してずれた状態となる。Since the recording paper stacking plate 2 is formed on an inclined surface inclined from the front wall 5 of the paper feeding section toward the rear wall 4 of the paper feeding section, the recording paper 3 on the recording paper stacking plate 2 The upper end thereof is shifted downward from the front wall 5 of the paper feeding section toward the rear wall 4 of the paper feeding section.

【００４６】したがって、各記録紙３間にずれが発生し
て、記録紙３を予め捌いた状態とすることができ、記録
紙３の分離性能を向上させることができる。Therefore, a shift occurs between the recording papers 3 so that the recording papers 3 can be separated in advance, and the separation performance of the recording papers 3 can be improved.

【００４７】この状態で、最も給紙部前壁５側の記録紙
３である先頭の記録紙３の上部前面にピックアップロー
ラ９が当接して回転することにより、先頭の記録紙３が
その記録紙３に平行な状態で、記録紙３の上方に位置す
る給紙ローラ１０とリバースローラに送り出される。こ
のとき、記録紙積載板２が給紙部前壁５から給紙部後壁
４方向に向かって傾斜しているため、先頭の記録紙３
は、隣接する次の記録紙３よりもその先端（上端）が予
め上方向にずれた捌かれた状態となっており、隣接する
記録紙３と適切に分離されて、給紙ローラ１０とリバー
スローラ１１に送り出される。また、先頭の記録紙３
は、当該記録紙３の載置方向、すなわち、記録紙３に平
行な略鉛直方向にピックアップローラ９により引き上げ
られて、送り出されるため、送り出される先頭の記録紙
３にこの記録紙３に隣接する記録紙３やその他の記録紙
３の重量が先頭の記録紙３にかかることがなく、さら
に、記録紙３が立てた状態で載置されて、上方に引き上
げられるので、送り出される記録紙３に隣接する記録紙
３の自重がかかり、送り出される記録紙３につれて上方
に送り出されるのを抑制することができる。In this state, the pickup roller 9 is brought into contact with the upper front surface of the leading recording paper 3 which is the recording paper 3 closest to the front wall 5 of the paper feeding section, and is rotated. In a state parallel to the paper 3, the paper is fed to a paper feed roller 10 and a reverse roller located above the recording paper 3. At this time, the recording paper stacking plate 2 is inclined from the front wall 5 of the paper supply unit toward the rear wall 4 of the paper supply unit.
The leading edge (upper end) of the next recording sheet 3 is separated from the next adjacent recording sheet 3 in the upward direction, and is separated from the adjacent recording sheet 3 appropriately. It is sent to the roller 11. Also, the leading recording paper 3
Is pulled up by the pickup roller 9 in the direction in which the recording paper 3 is placed, that is, in a substantially vertical direction parallel to the recording paper 3, and is sent out, so that the recording paper 3 is adjacent to the leading recording paper 3 to be sent out. The weight of the recording paper 3 and other recording papers 3 does not lie on the leading recording paper 3, and the recording paper 3 is placed in an upright state and pulled up, so that the recording paper 3 to be sent out The weight of the adjacent recording paper 3 is applied, and it is possible to prevent the recording paper 3 from being sent upward along with the recording paper 3 to be sent.

【００４８】したがって、ピックアップローラ９により
先頭の記録紙３のみを適切に分離して、上方の給紙ロー
ラ１０とリバースローラ１１に送り出すことができる。Therefore, only the leading recording paper 3 can be appropriately separated by the pickup roller 9 and sent out to the upper paper feed roller 10 and the reverse roller 11.

【００４９】給紙ローラ１０とリバースローラ１１は、
ピックアップローラ９により送り出されてきた記録紙３
を１枚ずつ分離して搬送する。すなわち、リバースロー
ラ１１は、トルクリミッタを介して伝達されるモータに
より給紙ローラ１０と反対方向に回転されるが、リバー
スローラ１１にかかる負荷が所定負荷を超えると、トル
クリミッタがリバースローラ１１をフリーの状態とする
ため、リバースローラ１１は、給紙ローラ１０と同じ方
向に連れ回りする。したがって、複数枚の記録紙３がピ
ックアップローラ９から送られてくると、給紙ローラ１
０と反対側に回転するリバースローラ１１により先頭の
記録紙３以外の記録紙３を分離し、リバースローラ１１
にかかる負荷が所定負荷を超えて大きくなり、リバース
ローラ１１が給紙ローラ１０と同じ方向に回転して、１
枚の記録紙３のみを搬送路１２を介して搬送する。The paper feed roller 10 and the reverse roller 11
Recording paper 3 sent out by pickup roller 9
Are separated and transported one by one. That is, the reverse roller 11 is rotated in the opposite direction to the paper feed roller 10 by the motor transmitted through the torque limiter. However, when the load applied to the reverse roller 11 exceeds a predetermined load, the torque limiter causes the reverse roller 11 to rotate. In order to be in a free state, the reverse roller 11 rotates in the same direction as the paper feed roller 10. Therefore, when a plurality of recording papers 3 are sent from the pickup roller 9, the paper feed roller 1
The recording paper 3 other than the first recording paper 3 is separated by the reverse roller 11 rotating to the side opposite to
Is increased beyond a predetermined load, and the reverse roller 11 rotates in the same
Only the recording paper 3 is conveyed through the conveyance path 12.

【００５０】このように、本実施の形態によれば、複数
枚の記録紙３を記録紙積載板２上に略鉛直方向にセット
するとともに、記録紙３の後面側を給紙部後壁４で、記
録紙３の前面側を給紙部前壁５で保持し、記録紙積載板
２を、給紙部前壁５から給紙部後壁４に向かって下降す
る所定角度の傾斜面に形成しているので、給紙部前壁５
側の先頭の記録紙３の上端を他の記録紙３の上端よりも
上方向にずらせて載置させることができ、記録紙３の給
紙時の分離性能を向上させることができる。As described above, according to the present embodiment, a plurality of recording papers 3 are set on the recording paper loading plate 2 in a substantially vertical direction, and the rear side of the recording paper 3 is Then, the front side of the recording paper 3 is held by the front wall 5 of the paper supply unit, and the recording paper stacking plate 2 is placed on the inclined surface of a predetermined angle descending from the front wall 5 of the paper supply unit toward the rear wall 4 of the paper supply unit. Because it is formed, the paper feed section front wall 5
The upper end of the first recording paper 3 on the side can be placed so as to be shifted upward from the upper ends of the other recording papers 3, and the separation performance when the recording paper 3 is fed can be improved.

【００５１】また、このとき、略鉛直に立てた記録紙３
を記録紙に略平行に上方に送り出すので、先頭以降の記
録紙３に作用する重力を先頭の記録紙３との分離力とし
て利用することができ、より一層記録紙３の給紙時の分
離性能を向上させて、重送の発生をより一層防止するこ
とができる。At this time, the recording paper 3 set up substantially vertically
Is fed upward substantially in parallel with the recording paper, the gravity acting on the recording paper 3 at the head and thereafter can be used as a separating force from the recording paper 3 at the head, and the separation at the time of feeding the recording paper 3 can be further improved. The performance can be improved, and the occurrence of double feed can be further prevented.

【００５２】図２は、本発明の給紙装置の第２の実施の
形態を適用した給紙装置２０を示す図であり、本実施の
形態は、記録紙を略水平の記録紙積載板上に立てた状態
でセットするとともに、記録紙を保持する給紙部後壁と
給紙部前壁を給紙部前壁側に傾斜させて、記録紙を上方
に送り出すもので、請求項２及び請求項４に対応するも
のである。FIG. 2 is a view showing a sheet feeding apparatus 20 to which a second embodiment of the sheet feeding apparatus of the present invention is applied. In this embodiment, a recording sheet is placed on a substantially horizontal recording sheet stacking plate. The recording paper is fed upward with the paper feeding unit rear wall and the paper feeding unit front wall for holding the recording paper inclined toward the paper feeding unit front wall side, and the recording paper is fed upward. This corresponds to claim 4.

【００５３】なお、本実施の形態は、上記第１の実施の
形態と同様の給紙装置に適用したものであり、本実施の
形態の説明においては、上記第１の実施の形態と同様の
構成部分には、同一の符号を付して、その詳細な説明を
省略する。The present embodiment is applied to the same sheet feeding device as the first embodiment, and in the description of the present embodiment, the same as the first embodiment is applied. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

【００５４】図２において、給紙装置２０は、略水平に
配設された記録紙積載板２１上に複数枚の記録紙３が略
鉛直に立てた状態で載置され、この記録紙３の幅方向の
両端部の下端部が記録紙スライドベルト６上に載った状
態となっている。In FIG. 2, a paper feeder 20 has a plurality of recording papers 3 placed on a recording paper loading plate 21 disposed substantially horizontally in a state of standing substantially vertically. The lower ends of both ends in the width direction are placed on the recording paper slide belt 6.

【００５５】記録紙積載板２１上に載置された複数枚の
記録紙３の後面側を給紙部後壁２２が保持し、記録紙３
の前面側を給紙部前壁２３が保持する。給紙部後壁２２
と給紙部前壁２３は、記録紙３の前面側に所定角度傾斜
した状態で配設されている。したがって、記録紙３は、
鉛直状態から給紙部後壁２２及び給紙部前壁２３が傾斜
している分だけ給紙部前壁２３側に傾斜した状態で、記
録紙積載板２１上に立った状態で載置され、記録紙３
は、給紙部前壁２３側に傾斜した分だけ、その上端が給
紙部前壁２３から給紙部後壁２２方向に向かって順次ず
れた状態となっている。そして、給紙部後壁２２は、上
記実施の形態の給紙部後壁４と同様に、図示しないモー
タとギヤ機構等の駆動機構により、図２中両矢印で示す
ように、給紙部前壁２３方向に移動され、常に、記録紙
３の後面を保持する。The rear surface of the paper supply unit 22 holds the rear surfaces of the plurality of recording papers 3 placed on the recording paper loading plate 21.
Is held by the paper supply unit front wall 23. Paper feed unit rear wall 22
The paper feed unit front wall 23 is disposed on the front side of the recording paper 3 at a predetermined angle. Therefore, the recording paper 3
The sheet is placed standing on the recording paper stacking plate 21 in a state where the paper supply unit rear wall 22 and the paper supply unit front wall 23 are inclined from the vertical state toward the paper supply unit front wall 23 by the amount of the inclination. , Recording paper 3
Is in a state where the upper end thereof is sequentially shifted from the paper supply unit front wall 23 toward the paper supply unit rear wall 22 by an amount inclined toward the paper supply unit front wall 23 side. As shown by a double-headed arrow in FIG. 2, the paper feeding unit rear wall 22 is driven by a driving mechanism such as a motor and a gear mechanism (not shown) in the same manner as the paper feeding unit rear wall 4 of the above-described embodiment. The recording paper 3 is moved toward the front wall 23 and always holds the rear surface of the recording paper 3.

【００５６】給紙装置２０は、上記第１の実施の形態と
同様に、先頭の記録紙３の上端部に当接して、先頭の記
録紙３を上部に配設された給紙ローラ１０とリバースロ
ーラ１１に送り出し、給紙ローラ１０とリバースローラ
１１が１枚ずつ記録紙３を分離して、搬送路１２に送り
出す。As in the first embodiment, the sheet feeding device 20 contacts the upper end of the leading recording sheet 3 and feeds the leading recording sheet 3 to the sheet feeding roller 10 disposed above. The recording paper 3 is sent out to the reverse roller 11, and the paper feed roller 10 and the reverse roller 11 separate the recording paper 3 one by one and send it out to the transport path 12.

【００５７】したがって、本実施の形態においては、給
紙装置２０は、複数枚の記録紙３が記録紙積載板２１上
に立てた状態で載置され、その記録紙３の後面を給紙部
後壁２２が、記録紙３の前面を給紙部前壁２３が保持す
る。そして、給紙部後壁２２が給紙部前壁２３方向に移
動可能に設けられているので、記録紙３は、記録紙積載
板２１上で、給紙部後壁２２と給紙部前壁２３により挟
まれた状態で座屈することなく、適切に保持される。Therefore, in the present embodiment, the paper feeder 20 has a plurality of recording papers 3 placed on the recording paper loading plate 21 in a state of standing upright, and the rear surface of the recording papers 3 is fed to the paper supply unit. The rear wall 22 holds the front surface of the recording paper 3 by the front wall 23 of the paper feeding unit. Further, since the paper supply unit rear wall 22 is provided so as to be movable in the direction of the paper supply unit front wall 23, the recording paper 3 is placed on the recording paper loading plate 21 with the paper supply unit rear wall 22 and the front of the paper supply unit. It is properly held without being buckled while being sandwiched by the wall 23.

【００５８】そして、給紙部後壁２２と給紙部前壁２３
が、記録紙３の前面側に所定角度傾斜した状態で配設さ
れているので、記録紙３は、鉛直状態から給紙部後壁２
２及び給紙部前壁２３が傾斜している分だけ給紙部前壁
２３側に傾斜した状態で、記録紙積載板２１上に立った
状態で載置され、記録紙３は、給紙部前壁２３側に傾斜
した分だけ、その上端が給紙部前壁２３から給紙部後壁
２２方向に向かって順次ずれた状態となっている。Then, the paper supply unit rear wall 22 and the paper supply unit front wall 23
The recording paper 3 is disposed on the front side of the recording paper 3 in a state of being inclined by a predetermined angle, so that the recording paper 3
2 and the paper supply unit front wall 23 is inclined toward the paper supply unit front wall 23 by an amount corresponding to the inclination of the paper supply unit front wall 23. The upper end thereof is sequentially shifted from the paper supply unit front wall 23 toward the paper supply unit rear wall 22 by an amount inclined toward the paper front unit 23 side.

【００５９】したがって、各記録紙３間にずれが発生し
て、記録紙３を予め捌いた状態とすることができ、記録
紙３の分離性能を向上させることができる。Therefore, a shift occurs between the recording papers 3 so that the recording papers 3 can be separated in advance and the separation performance of the recording papers 3 can be improved.

【００６０】図３は、本発明の給紙装置の第３の実施の
形態を適用した給紙装置３０を示す図であり、本実施の
形態は、記録紙を立てた状態でセットする記録紙積載板
を傾斜させるとともに、記録紙を保持する給紙部後壁と
給紙部前壁を鉛直方向から給紙部後壁側に傾斜させて、
記録紙を上方に送り出すもので、請求項３及び請求項４
に対応するものである。FIG. 3 is a view showing a paper feeder 30 to which a third embodiment of the paper feeder of the present invention is applied. In this embodiment, a recording paper set in a state where the recording paper is set up is shown. By inclining the stacking plate and inclining the paper supply unit rear wall and the paper supply unit front wall that hold the recording paper from the vertical direction toward the paper supply unit rear wall,
The recording paper is fed upward, and the recording paper is sent upward.
It corresponds to.

【００６１】なお、本実施の形態は、上記第１の実施の
形態と同様の給紙装置に適用したものであり、本実施の
形態の説明においては、上記第１の実施の形態と同様の
構成部分には、同一の符号を付して、その詳細な説明を
省略する。This embodiment is applied to the same paper feeder as in the first embodiment, and in the description of the present embodiment, the same as in the first embodiment will be described. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

【００６２】図３において、給紙装置３０は、傾斜した
記録紙積載板２上に複数枚の記録紙３が略鉛直に立てた
状態で載置され、記録紙３の幅方向の両端部の下端部が
記録紙スライドベルト６上に載った状態となっている。In FIG. 3, a plurality of recording papers 3 are placed on an inclined recording paper loading plate 2 in a state of standing substantially vertically, and a paper feeding device 30 is provided at both ends in the width direction of the recording papers 3. The lower end is on the recording paper slide belt 6.

【００６３】給紙装置３０は、記録紙積載板２上に載置
された複数枚の記録紙３の後面側を給紙部後壁３１が保
持し、記録紙３の前面側を給紙部前壁３２が保持する。
給紙部後壁３１と給紙部前壁３２は、記録紙３の後面側
に、鉛直方向（図３中Ｔａで表示する方向）と記録紙積
載板２に直角の方向（図３中Ｔｂで表示する方向）との
間の角度αの範囲の所定角度だけ傾斜した状態で配設さ
れている。The paper feeding device 30 is configured such that a rear surface of a plurality of recording papers 3 placed on the recording paper loading plate 2 is held by a rear wall 31 of the paper feeding unit, and a front surface of the recording paper 3 is held by a paper feeding unit. The front wall 32 holds.
The paper supply section rear wall 31 and the paper supply section front wall 32 are arranged on the rear side of the recording paper 3 in a direction perpendicular to the recording paper loading plate 2 (the direction indicated by Ta in FIG. 3) (Tb in FIG. 3). (Indicated by the arrow in the figure) is inclined at a predetermined angle within a range of an angle α between the two.

【００６４】したがって、記録紙３は、鉛直状態から給
紙部後壁３１及び給紙部前壁３２が鉛直方向から給紙部
後壁３１側に所定角度傾斜している分だけ給紙部後壁３
１側に傾斜した状態で、記録紙積載板２上に立てた状態
で載置され、記録紙３は、その上端が給紙部前壁３２か
ら給紙部後壁３１方向に向かって順次下方にずれた状態
となって、先頭の記録紙３が最も上方にずれた状態とな
っている。そして、給紙部後壁３１は、上記実施の形態
の給紙部後壁４と同様に、図示しないモータとギヤ機構
等の駆動機構により、図３中両矢印で示すように、給紙
部前壁３２方向に移動され、常に、記録紙３の後面を保
持する。Therefore, the recording paper 3 is moved from the vertical state by a predetermined angle to the paper supply unit rear wall 31 and the paper supply unit front wall 32 from the vertical direction toward the paper supply unit rear wall 31 side. Wall 3
The recording paper 3 is placed upright on the recording paper stacking plate 2 in a state inclined to the first side, and the upper end of the recording paper 3 is sequentially lowered from the paper supply unit front wall 32 toward the paper supply unit rear wall 31. , And the leading recording paper 3 is shifted to the uppermost position. As shown by a double-headed arrow in FIG. 3, the paper feeding unit rear wall 31 is driven by a driving mechanism such as a motor and a gear mechanism (not shown), similarly to the paper feeding unit rear wall 4 of the above-described embodiment. The recording paper 3 is moved toward the front wall 32 and always holds the rear surface of the recording paper 3.

【００６５】給紙装置３０は、上記第１の実施の形態と
同様に、先頭の記録紙３の上端部に当接して、先頭の記
録紙３を上部に配設された給紙ローラ１０とリバースロ
ーラ１１に送り出し、給紙ローラ１０とリバースローラ
１１が１枚ずつ記録紙３を分離して、搬送路１２に送り
出す。As in the first embodiment, the paper feeding device 30 is in contact with the upper end of the leading recording paper 3 to feed the leading recording paper 3 to the paper feed roller 10 disposed above. The recording paper 3 is sent out to the reverse roller 11, and the paper feed roller 10 and the reverse roller 11 separate the recording paper 3 one by one and send it out to the transport path 12.

【００６６】したがって、本実施の形態においては、給
紙装置３０は、複数枚の記録紙３が傾斜した記録紙積載
板２上に立てた状態で載置され、その記録紙３の後面を
給紙部後壁３１が、記録紙３の前面を給紙部前壁３２が
保持する。そして、給紙部後壁３１が給紙部前壁３２方
向に移動可能に設けられているので、記録紙３は、記録
紙積載板２上で、給紙部後壁３１と給紙部前壁３２によ
り挟まれた状態で座屈することなく、適切に保持され
る。Therefore, in the present embodiment, the paper feeding device 30 is placed with the plurality of recording papers 3 placed upright on the inclined recording paper loading plate 2, and supplies the rear surface of the recording papers 3. The paper unit rear wall 31 holds the front surface of the recording paper 3 by the paper supply unit front wall 32. Further, since the paper feeding unit rear wall 31 is provided so as to be movable in the direction of the paper feeding unit front wall 32, the recording paper 3 is placed on the recording paper loading plate 2 with the paper feeding unit rear wall 31 and the paper feeding unit front wall 32. It is properly held without buckling while being sandwiched by the wall 32.

【００６７】そして、記録紙積載板２が傾斜し、この傾
斜した記録紙積載板２に対して、給紙部後壁３１と給紙
部前壁３２が、鉛直方向Ｔａと記録紙積載板２に直角な
方向Ｔｂとの間の角度αの範囲内の所定角度傾斜した状
態で配設されているので、記録紙３は、鉛直状態から角
度αの範囲内で給紙部後壁３１及び給紙部前壁３２が記
録紙３の裏面側に傾斜している分だけ給紙部後壁３１側
に傾斜した状態で、記録紙積載板２上に立った状態で載
置され、記録紙３は、先頭の記録紙３からその上端が給
紙部前壁３２から給紙部後壁３１方向に向かって順次下
方にずれた状態となって、先頭の記録紙３が最も上方に
ずれた状態となっている。Then, the recording paper stacking plate 2 is inclined, and with respect to the inclined recording paper stacking plate 2, the rear wall 31 and the front wall 32 of the paper feeding unit are aligned with the vertical direction Ta and the recording paper stacking plate 2. The recording paper 3 is disposed in a state of being inclined at a predetermined angle within a range of an angle α between the direction Tb and the recording paper 3 within a range of an angle α from a vertical state. The paper sheet front wall 32 is placed on the recording paper stacking plate 2 in a state where the paper sheet front wall 32 is inclined toward the rear surface side of the recording paper 3 by the amount inclined to the back side of the recording paper 3. Is a state in which the top end of the recording paper 3 is sequentially shifted downward from the front wall 32 of the paper feeding section toward the rear wall 31 of the paper feeding section, and the top recording paper 3 is shifted most upward. It has become.

【００６８】したがって、各記録紙３間にずれが発生し
て、記録紙３を予め捌いた状態とすることができるとと
もに、給紙部前壁３２側の先頭の記録紙３に他の記録紙
３の重量がかかることを防止することができ、記録紙３
の分離性能をさらに向上させることができる。Therefore, a shift occurs between the recording papers 3, and the recording papers 3 can be separated in advance, and other recording papers are added to the first recording paper 3 on the side of the paper feed unit front wall 32. 3 can be prevented from being applied, and the recording paper 3
Can be further improved.

【００６９】また、先頭の記録紙３は、当該記録紙３の
載置方向、すなわち、記録紙３に平行な略鉛直方向にピ
ックアップローラ９により引き上げられる状態で、送り
出されるため、送り出される先頭の記録紙３にこの記録
紙３に隣接する記録紙３やその他の記録紙３の重量が先
頭の記録紙３にかかることをより一層抑制することがで
き、さらに、記録紙３が立てた状態で載置されて、上方
に引き上げられるので、送り出される記録紙３に隣接す
る記録紙３に自重がかかり、送り出される記録紙３につ
れて上方に送り出されるのを抑制することができる。The leading recording paper 3 is sent out in a state where it is pulled up by the pickup roller 9 in the mounting direction of the recording paper 3, that is, in a substantially vertical direction parallel to the recording paper 3. The weight of the recording paper 3 adjacent to the recording paper 3 and the other recording paper 3 can be further suppressed from being applied to the first recording paper 3. Since the recording paper 3 is placed and lifted upward, the recording paper 3 adjacent to the recording paper 3 to be fed is subjected to its own weight, and it is possible to prevent the recording paper 3 from being sent upward along with the fed recording paper 3.

【００７０】したがって、ピックアップローラ９により
先頭の記録紙３のみを適切に分離して、上方の給紙ロー
ラ１０とリバースローラ１１に送り出すことができる。Therefore, only the leading recording paper 3 can be appropriately separated by the pickup roller 9 and sent out to the upper paper supply roller 10 and the reverse roller 11.

【００７１】このように、本実施の形態の給紙装置３０
によれば、記録紙積載板２を、給紙部前壁３２側から給
紙部後壁３１側に向かって下降する所定角度の傾斜面に
形成し、給紙部後壁３１と給紙部前壁３２を、鉛直方向
Ｔａと記録紙積載板２の傾斜面に対して直角方向Ｔｂと
の間の所定の傾斜角度だけ記録紙３が給紙部後壁３１側
に傾斜させているので、先頭の記録紙３以外の記録紙３
が先頭の記録紙３にかかる重量を低減させることがで
き、記録紙３の給紙時の分離性能をさらに向上させるこ
とができる。As described above, the sheet feeding device 30 of the present embodiment
According to this, the recording paper stacking plate 2 is formed on an inclined surface having a predetermined angle that descends from the paper supply unit front wall 32 side to the paper supply unit rear wall 31 side, and the paper supply unit rear wall 31 and the paper supply unit Since the recording paper 3 is inclined toward the paper supply section rear wall 31 by a predetermined inclination angle between the front wall 32 and the vertical direction Ta and the direction Tb perpendicular to the inclined surface of the recording paper loading plate 2, Recording paper 3 other than top recording paper 3
Can reduce the weight applied to the leading recording paper 3, and the separation performance when the recording paper 3 is fed can be further improved.

【００７２】図４は、本発明の給紙装置の第４の実施の
形態を適用した給紙装置４０を示す図であり、本実施の
形態は、先頭の記録紙の上端と当該先頭の記録紙に隣接
する記録紙の上端とのずれの部分に空気を噴出するもの
で、請求項５に対応するものである。FIG. 4 is a view showing a sheet feeding device 40 to which a fourth embodiment of the sheet feeding device of the present invention is applied. In this embodiment, the upper end of the leading recording sheet and the leading recording sheet are shown. This blows air to a portion of the recording paper adjacent to the paper that is shifted from the upper end, and corresponds to claim 5.

【００７３】なお、本実施の形態は、上記第１の実施の
形態と同様の給紙装置に適用したものであり、本実施の
形態の説明においては、上記第１の実施の形態と同様の
構成部分には、同一の符号を付して、その詳細な説明を
省略する。This embodiment is applied to the same paper feeder as in the first embodiment, and in the description of the present embodiment, the same as in the first embodiment will be described. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

【００７４】図４において、給紙装置４０は、図示しな
いが、第１の実施の形態と同様に、記録紙３が給紙部前
壁５から給紙部後壁４方向に下降する状態で傾斜した記
録紙積載板２上に略鉛直に立てられ、記録紙３の幅方向
の両端部の下端部が記録紙スライドベルト６上に載った
状態で載置されることにより、記録紙３は、その上端が
給紙部前壁５から給紙部後壁４方向に下降した状態で載
置されている。したがって、給紙部前壁５側の先頭の記
録紙３は、隣接する記録紙３に対して、図４に示すよう
に、その先端が上方にずれた状態となっている。In FIG. 4, the paper feeder 40 is not shown, but the recording paper 3 is lowered from the front wall 5 of the paper feed section toward the rear wall 4 of the paper feed section, as in the first embodiment. The recording paper 3 is placed upright on the inclined recording paper loading plate 2, and the recording paper 3 is placed with the lower ends at both ends in the width direction of the recording paper 3 resting on the recording paper slide belt 6. The paper feed unit is placed with its upper end lowered from the paper feed unit front wall 5 toward the paper feed unit rear wall 4. Accordingly, as shown in FIG. 4, the leading recording paper 3 on the side of the paper supply unit front wall 5 is shifted upward with respect to the adjacent recording paper 3 as shown in FIG.

【００７５】給紙装置４０は、上記先頭の記録紙３と隣
接する記録紙３の先端のずれ部分に空気を噴射する噴射
ノズル４１が配設されており、噴射ノズル４１は、図示
しない電磁弁等を介して図示しないコンプレッサ、圧縮
空気の充填されたボンベ、あるいは、ファンに接続され
て、電磁弁が開閉されることにより、圧縮空気４２を先
頭の記録紙３と隣接する記録紙３の先端のずれ部分に噴
射する。噴射ノズル４１は、記録紙３の幅方向一杯に設
けられて、記録紙３の幅方向一杯に圧縮空気４２を噴射
してもよいし、記録紙３の幅方向中央部にのみ設けられ
て、記録紙３の幅方向中央部にのみ圧縮空気４２を噴射
するようにしてもよい。また、噴射ノズル４１は、常時
圧縮空気４２を先頭の記録紙３と隣接する記録紙３の先
端のずれ部分に噴射してもよいが、少なくとも、ピック
アップローラ９により先頭の記録紙３が送り出される瞬
間には圧縮空気４２を噴射する。The paper feeder 40 is provided with an injection nozzle 41 for jetting air at a position shifted from the leading end of the recording paper 3 adjacent to the leading recording paper 3. The injection nozzle 41 is provided with an electromagnetic valve (not shown). The compressed air 42 is connected to a compressor (not shown), a cylinder filled with compressed air, or a fan through the solenoid valve, and the solenoid valve is opened and closed. Inject to the misaligned part. The ejection nozzle 41 may be provided to fill the width of the recording paper 3 in the width direction, and may spray the compressed air 42 to fill the width of the recording paper 3 in the width direction. Alternatively, the ejection nozzle 41 may be provided only at the center of the recording paper 3 in the width direction. The compressed air 42 may be injected only to the center of the recording paper 3 in the width direction. In addition, the ejection nozzle 41 may always inject the compressed air 42 to the shifted portion of the leading end of the recording paper 3 adjacent to the leading recording paper 3, but at least the leading recording paper 3 is sent out by the pickup roller 9. At the moment, the compressed air 42 is injected.

【００７６】なお、給紙装置４０は、図示しないが、ピ
ックアップローラ９の上方に給紙ローラ１０とリバース
ローラ１１が配設され、ピックアップローラ９により送
り出された記録紙３を給紙ローラ１０とリバースローラ
１１により１枚ずつ分離して、図示しない上方に配設さ
れた搬送路１２を介して搬送させる。Although not shown, the paper feed device 40 has a paper feed roller 10 and a reverse roller 11 disposed above the pickup roller 9, and the recording paper 3 sent out by the pickup roller 9 is fed to the paper feed roller 10. The sheets are separated one by one by a reverse roller 11 and are conveyed via a conveying path 12 disposed above which is not shown.

【００７７】本実施の形態によれば、少なくとも先頭の
記録紙３の上端が隣接する記録紙３の先端から上方にず
れており、このずれ部分に少なくとも先頭の記録紙３が
ピックアップローラ９によりピックアップされて送り出
される瞬間に噴射ノズル４１から圧縮空気を噴射する。According to the present embodiment, at least the upper end of the leading recording paper 3 is displaced upward from the leading end of the adjacent recording paper 3, and at least the leading recording paper 3 is picked up by the pickup roller 9 in this displaced portion. The compressed air is injected from the injection nozzle 41 at the moment when the compressed air is sent out.

【００７８】したがって、従来のように記録紙積載部の
機密性や耐圧力性を必要とすることなく、また、それ程
強くない空気流を利用して、先頭の記録紙３と隣接する
記録紙３と間に空気を吹き込んで、空気層を形成するこ
とができ、先頭の記録紙３と隣接する記録紙３との分離
性能をより一層向上させることができる。Therefore, the recording paper 3 adjacent to the first recording paper 3 is not required to have the confidentiality and pressure resistance of the recording paper loading section as in the prior art, and utilizes a not so strong air flow. Air can be blown in between to form an air layer, and the separation performance between the leading recording paper 3 and the adjacent recording paper 3 can be further improved.

【００７９】図５及び図６は、本発明の給紙装置の第５
の実施の形態を適用した給紙装置５０を示す図であり、
本実施の形態は、記録紙積載板に、後壁面と前壁面方向
に延在して通風スリットを形成して、この通風スリット
を通して記録紙積載板上に略鉛直方向に載置されている
記録紙に空気を噴出するもので、請求項６に対応するも
のである。FIGS. 5 and 6 show the fifth embodiment of the sheet feeding device of the present invention.
FIG. 6 is a diagram illustrating a sheet feeding device 50 to which the embodiment of the present invention is applied;
In the present embodiment, the recording paper stacking plate is formed with a ventilation slit extending in the direction of the rear wall surface and the front wall surface, and the recording paper placed substantially vertically on the recording paper stacking plate through the ventilation slit. It blows air onto paper, and corresponds to claim 6.

【００８０】図５において、給紙装置５０は、記録紙積
載板５１上に記録紙３が略鉛直に立てた状態で載置さ
れ、記録紙３の後面を給紙部後壁５２が、記録紙３の前
面を給紙部前壁５３が保持する。記録紙積載板５１は、
第１の実施の形態と同様に、給紙部前壁５３から給紙部
後壁５２方向に下降するように傾斜した状態で配設され
ている。記録紙積載板５１には、図６に示すように、給
紙部前壁５３から給紙部後壁５２方向に延在する３本の
通風スリット５１ａ、５１ｂ、５１ｃが形成されてお
り、通風スリット５１ａ、５１ｂ、５１ｃは、記録紙３
の幅方向に対して所定間隔で形成されている。In FIG. 5, the paper feeder 50 has a recording paper 3 placed on a recording paper stacking plate 51 in a substantially vertical state. The front face of the paper 3 is held by the paper supply unit front wall 53. The recording paper loading plate 51 is
As in the first embodiment, it is disposed so as to be inclined so as to descend from the front wall 53 of the paper supply unit to the rear wall 52 of the paper supply unit. As shown in FIG. 6, the recording paper stacking plate 51 has three ventilation slits 51a, 51b, 51c extending from the front wall 53 of the paper supply unit to the rear wall 52 of the paper supply unit. The slits 51a, 51b and 51c are
Are formed at predetermined intervals in the width direction.

【００８１】記録紙積載板５１の下部には、図５に示す
ように、少なくとも記録紙積載板５１に形成された通風
スリット５１ａ、５１ｂ、５１ｃの下部を覆う幅と長さ
を有した通風ユニット５４が配設されており、通風ユニ
ット５４は、内部に上記通風スリット５１ａ、５１ｂ、
５１ｃに連通する空気通路５４ａを有した箱状に形成さ
れている。この通風ユニット５４の端部には、ファン５
５が取り付けられており、ファン５５は、通風ユニット
５４内に空気を送り込む。ファン５５により通風ユニッ
ト５４に送り込まれた空気は、記録紙積載板５１に形成
された通風スリット５１ａ、５１ｂ、５１ｃを通して、
記録紙積載板５１上に略鉛直に載置された全ての記録紙
３に記録紙３の下部から空気を吹き付ける。As shown in FIG. 5, a ventilation unit having a width and a length covering at least the ventilation slits 51a, 51b, and 51c formed in the recording paper loading plate 51 is provided below the recording paper loading plate 51. The ventilation unit 54 has the ventilation slits 51a, 51b,
It is formed in a box shape having an air passage 54a communicating with 51c. At the end of the ventilation unit 54, a fan 5
5 is attached, and the fan 55 sends air into the ventilation unit 54. The air sent into the ventilation unit 54 by the fan 55 passes through ventilation slits 51a, 51b, 51c formed in the recording paper stacking plate 51.
Air is blown from below the recording paper 3 onto all the recording papers 3 placed substantially vertically on the recording paper loading plate 51.

【００８２】ファン５５の送風する空気量は、ファン５
５の能力やファン５５の個数を調整することにより、調
整され、この送風空気量を調整することにより、記録紙
３に吹き付ける空気量を調整する。また、通風ユニット
５４に送り込む空気は、ファン５５によるものに限るも
のではなく、例えば、圧縮空気を充填したボンベから送
り込むようにしてもよい。さらに、ファン５５を回転さ
せて記録紙３に空気を吹き付けるタイミングは、常時、
一定時間間隔毎、記録紙３を給紙装置５０にセットした
直後、あるいは、記録紙３を給紙装置５０から送り出す
直前等のいずれのタイミングであってもよいし、あるい
は、これらを組み合わせたタイミングであってもよい。The amount of air blown by the fan 55 is
The number of fans 55 and the number of fans 55 are adjusted, and the amount of air blown onto the recording paper 3 is adjusted by adjusting the amount of air blown. The air sent to the ventilation unit 54 is not limited to the air supplied by the fan 55, but may be sent from a cylinder filled with compressed air. Further, the timing of blowing the air onto the recording paper 3 by rotating the fan 55 is
The timing may be any time, such as immediately after the recording paper 3 is set in the paper feeding device 50, immediately before the recording paper 3 is sent out from the paper feeding device 50, or a combination thereof. It may be.

【００８３】本実施の形態によれば、給紙装置５０は、
略鉛直に立てた状態で記録紙３の載置された記録紙積載
板５１に給紙部後壁５２と給紙部前壁５３方向に延在し
て通風スリット５１ａ、５１ｂ、５１ｃが形成されてお
り、この通風スリット５１ａ、５１ｂ、５１ｃに連通す
る空気通路５４ａを備えた通風ユニットが記録紙積載板
５１の下部に配設されている。そして、通風ユニット５
４の空気通路５４ａには、ファン５５により空気が送り
込まれる。According to the present embodiment, the paper feeding device 50
Ventilation slits 51a, 51b, and 51c are formed in the recording paper stacking plate 51 on which the recording paper 3 is placed in a substantially vertical state so as to extend in the direction of the paper supply unit rear wall 52 and the paper supply unit front wall 53. A ventilation unit having an air passage 54a communicating with the ventilation slits 51a, 51b, 51c is provided below the recording paper loading plate 51. And the ventilation unit 5
Air is sent into the fourth air passage 54a by the fan 55.

【００８４】そして、ファン５５により通風ユニット５
４の空気通路５４ａに送り込まれた空気は、記録紙積載
板５１に形成された通風スリット５１ａ、５１ｂ、５１
ｃを通過して、記録紙積載板５１上に略鉛直に立てた状
態で載置された記録紙３に吹き付けられる。Then, the ventilation unit 5 is
The air sent into the air passage 54a of the fourth paper is transmitted to the ventilation slits 51a, 51b, 51 formed in the recording paper stacking plate 51.
After passing through the recording paper 3, the recording paper 3 is sprayed on the recording paper 3 placed on the recording paper loading plate 51 in a substantially vertical state.

【００８５】したがって、各記録紙３の間に空気を吹き
込んで、各記録紙３を予め捌くことができ、ピックアッ
プローラ９による先頭の記録紙３を送り出す際に、隣接
する記録紙３との分離性能をより一層向上させることが
できる。Therefore, air can be blown between the recording papers 3 so that each recording paper 3 can be loosened in advance, and when the leading recording paper 3 is sent out by the pickup roller 9, it is separated from the adjacent recording paper 3. The performance can be further improved.

【００８６】なお、本実施の形態においては、第１の実
施の形態のように、記録紙積載板５１を傾斜させている
場合について適用したが、記録紙３の上端にずれを発生
させる方法は、これに限るものではなく、例えば、第２
の実施の形態のように、記録紙積載板５１を水平にして
給紙部後壁５２と給紙部前壁５３を傾斜させてもよい
し、第３の実施の形態のように、記録紙積載板５１を傾
斜させ、給紙部後壁５２と給紙部前壁５３を所定角度α
の範囲で傾斜させてもよい。Although the present embodiment is applied to the case where the recording paper stacking plate 51 is inclined as in the first embodiment, the method of generating a shift at the upper end of the recording paper 3 is as follows. , But not limited thereto, for example, the second
As in the third embodiment, the recording paper loading plate 51 may be horizontal and the rear wall 52 and the front wall 53 may be inclined. The stacking plate 51 is inclined, and the rear wall 52 of the paper feeding unit and the front wall 53 of the paper feeding unit are set at a predetermined angle α.
May be inclined in the range of.

【００８７】図７及び図８は、本発明の給紙装置の第６
の実施の形態を適用した給紙装置６０を示す図であり、
本実施の形態は、記録紙積載板に、後壁面と前壁面方向
に延在して通風スリットを形成して、この通風スリット
に沿って移動しながら通風スリットを通して記録紙積載
板上に略鉛直方向に載置されている記録紙に空気を噴出
するもので、請求項７に対応するものである。FIGS. 7 and 8 show a sixth embodiment of the sheet feeding device of the present invention.
FIG. 6 is a diagram illustrating a sheet feeding device 60 to which the embodiment of the present invention is applied;
In the present embodiment, a ventilation slit is formed in the recording paper loading plate so as to extend in the direction of the rear wall surface and the front wall surface, and while moving along the ventilation slit, a substantially vertical position is formed on the recording paper loading plate through the ventilation slit. This is to blow air to the recording paper placed in the direction, and corresponds to claim 7.

【００８８】図７において、給紙装置６０は、記録紙積
載板６１上に記録紙３が略鉛直に立てた状態で載置さ
れ、記録紙３の後面を給紙部後壁６２が、記録紙３の前
面を給紙部前壁６３が保持する。記録紙積載板６１は、
第１の実施の形態と同様に、給紙部前壁６３から給紙部
後壁６２方向に下降するように傾斜した状態で配設され
ている。記録紙積載板６１には、図８に示すように、給
紙部前壁６３から給紙部後壁６２方向に延在する３本の
通風スリット６１ａ、６１ｂ、６１ｃが形成されてお
り、通風スリット６１ａ、６１ｂ、６１ｃは、記録紙３
の幅方向に対して所定間隔で形成されている。In FIG. 7, a paper feeder 60 has a recording paper 3 placed on a recording paper stacking plate 61 in a substantially vertical state. The front surface of the paper 3 is held by the paper supply unit front wall 63. The recording paper loading plate 61
As in the first embodiment, it is disposed so as to be inclined so as to descend from the front wall 63 of the paper feeding section toward the rear wall 62 of the paper feeding section. As shown in FIG. 8, three ventilation slits 61a, 61b, 61c extending from the front wall 63 of the paper supply unit to the rear wall 62 of the paper supply unit are formed on the recording paper loading plate 61, The slits 61a, 61b, 61c
Are formed at predetermined intervals in the width direction.

【００８９】記録紙積載板６１の下部には、記録紙積載
板６１の幅方向に延在する通風ユニット６４が配設され
ており、図８に示すように、通風ユニット６４は、内部
に上記通風スリット６１ａ、６１ｂ、６１ｃに連通する
空気通路６４ａを有した細長い箱状に形成されている。
この通風ユニット６４の端部には、ファン６５が取り付
けられており、ファン６５は、通風ユニット６４の空気
通路６４ａ内に空気を送り込む。また、通風ユニット６
４の上面には、通風スリット６１ａ、６１ｂ、６１ｃに
連通する噴射口６４ｂ、６４ｃ、６４ｄが形成されてお
り、ファン６５により通風ユニット６４に送り込まれた
空気は、その噴射口６４ｂ、６４ｃ、６４ｄ及び記録紙
積載板６１に形成された通風スリット６１ａ、６１ｂ、
６１ｃを通して、記録紙積載板６１上に略鉛直に載置さ
れた全ての記録紙３に記録紙３の下部から空気を吹き付
ける。Below the recording paper stacking plate 61, a ventilation unit 64 extending in the width direction of the recording paper loading plate 61 is provided. As shown in FIG. It is formed in an elongated box shape having an air passage 64a communicating with the ventilation slits 61a, 61b, 61c.
A fan 65 is attached to an end of the ventilation unit 64, and the fan 65 sends air into an air passage 64 a of the ventilation unit 64. In addition, ventilation unit 6
On the upper surface of the nozzle 4, injection ports 64 b, 64 c, 64 d communicating with the ventilation slits 61 a, 61 b, 61 c are formed, and the air sent into the ventilation unit 64 by the fan 65 is applied to the injection ports 64 b, 64 c, 64 d. And ventilation slits 61a, 61b formed in the recording paper loading plate 61,
Air is blown from below the recording paper 3 to all the recording papers 3 placed substantially vertically on the recording paper loading plate 61 through 61c.

【００９０】上記通風ユニット６４は、図示しない移動
機構、例えば、モータ、ベルト及びプーリー等により、
図８に両矢印で示す給紙部前壁６３と給紙部後壁６２の
方向に移動され、移動されつつ、ファン６５により通風
ユニット６４の空気通路６４ａ内に送り込まれた空気を
噴射口６４ｂ、６４ｃ、６４ｄ及び通風スリット６１
ａ、６１ｂ、６１ｃを通して、記録紙積載板６１上の記
録紙３に吹き付ける。The ventilation unit 64 is moved by a moving mechanism (not shown) such as a motor, a belt and a pulley.
The air that has been moved into the air passage 64a of the ventilation unit 64 by the fan 65 while being moved in the direction of the paper feed unit front wall 63 and the paper feed unit rear wall 62 indicated by a double arrow in FIG. , 64c, 64d and ventilation slit 61
The recording paper 3 on the recording paper stacking plate 61 is sprayed through a, 61b, and 61c.

【００９１】ファン６５の送風する空気量は、ファン６
５の能力やファン６５の個数を調整することにより、調
整され、この送風空気量を調整することにより、記録紙
３に吹き付ける空気量を調整する。また、通風ユニット
６４に送り込む空気は、ファン６５によるものに限るも
のではなく、例えば、圧縮空気を充填したボンベから送
り込むようにしてもよい。さらに、ファン６５を回転さ
せて記録紙３に空気を吹き付けるタイミングは、常時、
一定時間間隔毎、記録紙３を給紙装置６０にセットした
直後、あるいは、記録紙３を給紙装置６０から送り出す
直前等のいずれのタイミングであってもよいし、あるい
は、これらを組み合わせたタイミングであってもよい。The amount of air blown by the fan 65 is
5 and the number of fans 65 are adjusted, and by adjusting the amount of blown air, the amount of air blown to the recording paper 3 is adjusted. Further, the air sent into the ventilation unit 64 is not limited to the air from the fan 65, and may be sent from a cylinder filled with compressed air, for example. Further, the timing at which the fan 65 is rotated to blow air onto the recording paper 3 is always
The timing may be any time, such as immediately after the recording paper 3 is set in the paper feeding device 60, immediately before the recording paper 3 is sent out from the paper feeding device 60, or a combination thereof. It may be.

【００９２】本実施の形態によれば、給紙装置６０は、
略鉛直に立てた状態で記録紙３の載置された記録紙積載
板６１に給紙部後壁６２と給紙部前壁６３方向に延在し
て通風スリット６１ａ、６１ｂ、６１ｃが形成されてお
り、この通風スリット６１ａ、６１ｂ、６１ｃに連通す
る空気通路６４ａと噴射口６４ｂ、６４ｃ、６４ｄを備
えた通風ユニット６４が記録紙積載板６１の下部に給紙
部後壁６２と給紙部前壁６３方向に移動可能に配設され
ている。そして、通風ユニット６４の空気通路６４ａに
は、ファン６５により空気が送り込まれる。According to the present embodiment, the paper feeding device 60
Ventilation slits 61a, 61b, and 61c are formed on the recording paper stacking plate 61 on which the recording paper 3 is placed in a substantially vertical state and extend in the direction of the paper supply unit rear wall 62 and the paper supply unit front wall 63. A ventilation unit 64 having an air passage 64a communicating with the ventilation slits 61a, 61b, 61c and ejection ports 64b, 64c, 64d is provided at a lower portion of the recording paper loading plate 61 with a paper supply section rear wall 62 and a paper supply section. It is arranged movably in the direction of the front wall 63. Then, air is sent into the air passage 64 a of the ventilation unit 64 by the fan 65.

【００９３】そして、ファン６５により通風ユニット６
４の空気通路６４ａに送り込まれた空気は、通風ユニッ
ト６４が移動しながら噴射口６４ｂ、６４ｃ、６４ｄ及
び記録紙積載板６１に形成された通風スリット６１ａ、
６１ｂ、６１ｃを通過して、記録紙積載板６１上に略鉛
直に立てた状態で載置された記録紙３に吹き付けられ
る。Then, the ventilation unit 6 is operated by the fan 65.
The air sent into the air passage 64a of the fourth air passages 64a, 64b, 64c, 64d and the ventilation slits 61a formed in the recording paper loading plate 61 while the ventilation unit 64 moves.
After passing through 61b and 61c, the recording paper 3 is sprayed on the recording paper 3 placed on the recording paper loading plate 61 in a substantially vertical state.

【００９４】したがって、大きなファン等を用いたり、
給紙装置６０を密閉構造にすることなく、各記録紙３の
間に空気を吹き込んで、各記録紙３を予め捌くことがで
き、ピックアップローラ９による先頭の記録紙３を送り
出す際に、隣接する記録紙３との分離性能をより一層向
上させることができる。Therefore, if a large fan or the like is used,
Air can be blown between the recording papers 3 to separate the recording papers 3 in advance without making the paper feeding device 60 a closed structure, and when the leading recording paper 3 is sent out by the pickup roller 9, the adjacent recording papers 3 can be separated. The separation performance from the recording paper 3 can be further improved.

【００９５】なお、本実施の形態においては、第１の実
施の形態のように、記録紙積載板６１を傾斜させている
場合について適用したが、記録紙３の上端にずれを発生
させる方法は、これに限るものではなく、例えば、第２
の実施の形態のように、記録紙積載板６１を水平にして
給紙部後壁６２と給紙部前壁６３を傾斜させてもよい
し、第３の実施の形態のように、記録紙積載板６１を傾
斜させ、給紙部後壁６２と給紙部前壁６３を所定角度の
範囲で傾斜させてもよい。Although the present embodiment is applied to the case where the recording paper stacking plate 61 is inclined as in the first embodiment, the method of generating a shift at the upper end of the recording paper 3 is as follows. , But not limited thereto, for example, the second
As in the third embodiment, the recording paper stacking plate 61 may be horizontal, and the rear wall 62 and the front wall 63 of the paper feeding section may be inclined. The loading plate 61 may be inclined, and the paper supply unit rear wall 62 and the paper supply unit front wall 63 may be inclined within a predetermined angle range.

【００９６】以上、本発明者によってなされた発明を好
適な実施の形態に基づき具体的に説明したが、本発明は
上記のものに限定されるものではなく、その要旨を逸脱
しない範囲で種々変更可能であることはいうまでもな
い。Although the invention made by the inventor has been specifically described based on the preferred embodiments, the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the gist of the invention. It goes without saying that it is possible.

【００９７】[0097]

【発明の効果】請求項１記載の発明の給紙装置によれ
ば、複数枚の記録紙を記録紙載置部の底面上に略鉛直方
向にセットするとともに、記録紙の後面側を後壁面で、
記録紙の前面側を前壁面で保持し、記録紙載置部の底面
を、前壁面側から後壁面側に向かって下降する所定角度
の傾斜面に形成するので、前壁面側の先頭の記録紙の上
端を他の記録紙の上端よりも上方向にずらせて載置させ
ることができ、記録紙の給紙時の分離性能を向上させる
ことができる。According to the paper feeding apparatus of the first aspect of the present invention, a plurality of recording papers are set substantially vertically on the bottom surface of the recording paper mounting portion, and the rear side of the recording paper is placed on the rear wall surface. so,
The front side of the recording paper is held by the front wall surface, and the bottom surface of the recording paper placing portion is formed as a slope inclined at a predetermined angle descending from the front wall surface toward the rear wall side. The upper end of the paper can be placed so as to be shifted upward from the upper ends of the other recording papers, and the separation performance when feeding the recording paper can be improved.

【００９８】請求項２の発明の給紙装置によれば、複数
枚の記録紙を記録紙載置部の底面上に略鉛直方向にセッ
トするとともに、記録紙の後面側を後壁面で、記録紙の
前面側を前壁面で保持し、記録紙載置部の後壁面と前壁
面を、前壁面側に所定角度の傾斜する傾斜面に形成する
ので、前壁面側の先頭の記録紙の上端を他の記録紙の上
端よりも上方向にずらせて載置させることができ、記録
紙の給紙時の分離性能を向上させることができる。According to the paper feeder of the second aspect of the present invention, a plurality of recording papers are set substantially vertically on the bottom surface of the recording paper mounting portion, and the rear side of the recording paper is recorded on the rear wall surface. The front side of the paper is held by the front wall surface, and the rear wall and front wall of the recording paper placement section are formed on the front wall side with a slope inclined at a predetermined angle to the front wall side. Can be displaced upward from the upper ends of the other recording sheets, and the separation performance when feeding the recording sheets can be improved.

【００９９】請求項３記載の発明の給紙装置によれば、
記録紙載置部の底面を、前壁面側から後壁面側に向かっ
て下降する所定角度の傾斜面に形成し、後壁面と前壁面
を、鉛直方向と底面の傾斜面に対して直角方向との間の
所定の傾斜角度だけ後壁面側に傾斜する傾斜面に形成し
ているので、前壁面側の先頭の記録紙の上端を他の記録
紙の上端よりもさらに上方向にずらせて載置させること
ができるとともに、先頭の記録紙以外の記録紙が先頭の
記録紙にかかる重量を低減させることができ、記録紙の
給紙時の分離性能をさらに向上させることができる。According to the sheet feeding device of the third aspect of the present invention,
The bottom surface of the recording paper placing portion is formed on an inclined surface having a predetermined angle descending from the front wall surface side to the rear wall surface side, and the rear wall surface and the front wall surface are vertically and perpendicular to the inclined surface of the bottom surface. The recording paper is placed on the inclined surface that is inclined toward the rear wall by the predetermined inclination angle between the front and rear walls, so that the upper end of the first recording paper on the front wall is shifted further upward than the upper ends of other recording paper. In addition to this, it is possible to reduce the weight of the recording paper other than the leading recording paper on the leading recording paper, and it is possible to further improve the separation performance when the recording paper is fed.

【０１００】請求項４記載の発明の給紙装置によれば、
先頭の記録紙を当該記録紙に平行に上方向に給紙するの
で、先頭以降の記録紙に作用する重力を先頭の記録紙と
の分離力として利用することができ、より一層記録紙の
給紙時の分離性能を向上させて、重送の発生をより一層
防止することができる。According to the paper feeder of the invention described in claim 4,
Since the leading recording paper is fed upward in parallel with the recording paper, the gravity acting on the recording paper following the leading can be used as a separating force from the leading recording paper, and the recording paper can be further fed. The paper separating performance can be improved, and the occurrence of double feed can be further prevented.

【０１０１】請求項５記載の発明の給紙装置によれば、
先頭の記録紙の上端と当該先頭の記録紙に隣接する記録
紙の上端とのずれの部分に空気を噴出するので、記録紙
上端のずれを利用して先頭の記録紙と先頭の記録紙に隣
接する次の記録紙との間に空気を吹き込むことができ、
先頭の記録紙と次の記録紙との間に効率的に空気の層を
形成して、より一層効果的に記録紙を分離させることが
できる。According to the paper feeding apparatus of the invention described in claim 5,
Since air is blown out to the portion between the upper end of the first recording paper and the upper end of the recording paper adjacent to the first recording paper, the deviation of the upper end of the recording paper is used to separate the first recording paper and the first recording paper. Air can be blown between the next adjacent recording paper,
An air layer can be efficiently formed between the first recording paper and the next recording paper, and the recording paper can be separated more effectively.

【０１０２】請求項６記載の発明の給紙装置によれば、
記録紙載置部の底面に後壁面と前壁面方向に延在して形
成された通風スリットを通して底面上に略鉛直方向に載
置されている複数枚の記録紙に空気を噴出するので、記
録紙積載部の機密性や耐圧力性を必要とすることなく、
また、それ程強くない空気流を利用して、記録紙間に効
率的に空気の層を形成することができ、載置されている
複数枚の記録紙を予め捌いて、より一層効果的に記録紙
を１枚ずつ分離させることができる。According to the paper feeder of the invention described in claim 6,
Air is blown onto a plurality of recording papers placed in a substantially vertical direction on the bottom surface through ventilation slits formed in the bottom surface of the recording paper placement portion and extending in the direction of the rear wall surface and the front wall surface. Without needing the confidentiality and pressure resistance of the paper loading section,
In addition, it is possible to efficiently form an air layer between recording sheets by using an air flow that is not so strong. Paper can be separated one by one.

【０１０３】請求項７記載の発明の給紙装置によれば、
空気噴出手段を、略鉛直方向に複数枚の記録紙が載置さ
れた底面の通風スリットに沿って移動しつつ、記録紙に
空気を噴出するので、空気流を記録紙群の一点に集中し
て噴射することができるとともに、他の記録紙部分に空
気の圧力がかからないようにすることができ、効率的に
記録紙を捌いて、より安価で、小型の低い性能の空気噴
出手段であっても、適切に記録紙間に空気を噴入するこ
とができる。したがって、より一層効果的に記録紙を１
枚ずつ分離させることができる。According to the paper feeder of the invention described in claim 7,
While moving the air jetting means in a substantially vertical direction along the ventilation slit on the bottom surface on which a plurality of recording papers are placed, air is jetted onto the recording paper, so that the air flow is concentrated on one point of the recording paper group. Air ejecting means that can release the recording paper efficiently while preventing the pressure of air from being applied to other recording paper portions. Also, air can be properly injected between the recording sheets. Therefore, the recording paper can be more effectively
Can be separated one by one.

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

【図１】本発明の給紙装置の第１の実施の形態を適用し
た給紙装置の要部正面図。FIG. 1 is a front view of a main part of a paper feeding device to which a first embodiment of the paper feeding device of the present invention is applied.

【図２】本発明の給紙装置の第２の実施の形態を適用し
た給紙装置の要部正面図。FIG. 2 is a front view of a main part of a sheet feeding device to which a second embodiment of the sheet feeding device of the present invention is applied.

【図３】本発明の給紙装置の第３の実施の形態を適用し
た給紙装置の要部正面図。FIG. 3 is a front view of a main part of a sheet feeding device to which a third embodiment of the sheet feeding device of the present invention is applied.

【図４】本発明の給紙装置の第４の実施の形態を適用し
た給紙装置の要部拡大正面図。FIG. 4 is an enlarged front view of a main part of a sheet feeding device to which a fourth embodiment of the sheet feeding device of the present invention is applied.

【図５】本発明の給紙装置の第５の実施の形態を適用し
た給紙装置の要部正面図。FIG. 5 is a main part front view of a sheet feeding apparatus to which a fifth embodiment of the sheet feeding apparatus of the present invention is applied.

【図６】図５の給紙装置の上面図。FIG. 6 is a top view of the sheet feeding device of FIG. 5;

【図７】本発明の給紙装置の第６の実施の形態を適用し
た給紙装置の要部正面図。FIG. 7 is a front view of a main part of a paper feeding device to which a sixth embodiment of the paper feeding device of the present invention is applied.

【図８】図７の給紙装置の上面図。FIG. 8 is a top view of the sheet feeding device of FIG. 7;

【符号の説明】[Explanation of symbols]

１、２０、３０、４０、５０、６０ 給紙装置 ２、２１、５１、６１ 記録紙積載板 ３ 記録紙 ４、２２、３１、５２、６２ 給紙部後壁 ５、２３、３２、５３、６３ 給紙部前壁 ６ 記録紙スライドベルト ７、８ プーリー ９ ピックアップローラ １０ 給紙ローラ １１ リバースローラ ４１ 噴射ノズル ４２ 圧縮空気 ５１ａ、５１ｂ、５１ｃ、６１ａ、６１ｂ、６１ｃ 通
風スリット ５４、６４ 通風ユニット ５４ａ、６４ａ 空気通路 ５５、６５ ファン ６４ｂ、６４ｃ、６４ｄ 噴射口1, 20, 30, 40, 50, 60 Paper feeder 2, 21, 51, 61 Recording paper loading plate 3 Recording paper 4, 22, 31, 52, 62 Paper supply section rear wall 5, 23, 32, 53, 63 Front wall of paper feed section 6 Recording paper slide belt 7, 8 Pulley 9 Pickup roller 10 Paper feed roller 11 Reverse roller 41 Injection nozzle 42 Compressed air 51a, 51b, 51c, 61a, 61b, 61c Ventilation slit 54, 64 Ventilation unit 54a , 64a Air passage 55, 65 Fan 64b, 64c, 64d Injection port

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】記録紙載置部の底面上に複数枚のカット状
の記録紙が略鉛直方向にセットされ、当該略鉛直方向に
セットされた複数枚の前記記録紙の後面側を後壁面で保
持し、当該記録紙の前面側を前壁面で保持し、前記前壁
面側の先頭の前記記録紙から１枚ずつ分離して給紙する
とともに、前記後壁面と前記前壁面のうち少なくとも一
方が相互に近接する方向に移動して前記記録紙を保持す
る給紙装置であって、前記記録紙載置部の前記底面が、
前記前壁面側から前記後壁面側に向かって下降する所定
角度の傾斜面に形成され、前記前壁面側の先頭の前記記
録紙の上端を他の前記記録紙の上端よりも上方向にずら
せて載置することを特徴とする給紙装置。1. A plurality of cut recording papers are set on a bottom surface of a recording paper mounting portion in a substantially vertical direction, and rear surfaces of the plurality of recording papers set in the substantially vertical direction are rear wall surfaces. , The front side of the recording paper is held by the front wall surface, and the recording paper is separated and fed one by one from the leading recording paper on the front wall side, and at least one of the rear wall surface and the front wall surface Is a paper feeder that moves in a direction approaching each other and holds the recording paper, wherein the bottom surface of the recording paper placement unit is
It is formed on an inclined surface of a predetermined angle descending from the front wall surface side toward the rear wall surface, and the upper end of the leading recording paper on the front wall surface is shifted upward from the upper ends of the other recording papers. A paper feeding device, wherein the paper feeding device is placed. 【請求項２】記録紙載置部の底面上に複数枚のカット状
の記録紙が略鉛直方向にセットされ、当該略鉛直方向に
セットされた複数枚の前記記録紙の後面側を後壁面で保
持し、当該記録紙の前面側を前壁面で保持し、前記前壁
面側の先頭の前記記録紙から１枚ずつ分離して給紙する
とともに、前記後壁面と前記前壁面のうち少なくとも一
方が相互に近接する方向に移動して前記記録紙を保持す
る給紙装置であって、前記後壁面と前記前壁面が、前記
前壁面側に所定角度傾斜する傾斜面に形成され、前記前
壁面側の先頭の前記記録紙の上端を他の前記記録紙の上
端よりも上方向にずらせて載置することを特徴とする給
紙装置。2. A plurality of cut recording papers are set on a bottom surface of a recording paper mounting portion in a substantially vertical direction, and rear surfaces of the plurality of recording papers set in the substantially vertical direction are rear wall surfaces. And the front side of the recording paper is held by the front wall surface, and the recording paper is fed one by one from the front recording paper on the front wall side, and at least one of the rear wall surface and the front wall surface Is a paper feeder that moves in a direction approaching each other and holds the recording paper, wherein the rear wall surface and the front wall surface are formed on an inclined surface inclined at a predetermined angle toward the front wall surface, and the front wall surface A sheet feeding device, wherein an upper end of the first recording sheet on the side is shifted upward from an upper end of the other recording sheets. 【請求項３】記録紙載置部の底面上に複数枚のカット状
の記録紙が略鉛直方向にセットされ、当該略鉛直方向に
セットされた複数枚の前記記録紙の後面側を後壁面で保
持し、当該記録紙の前面側を前壁面で保持し、前記前壁
面側の先頭の前記記録紙から１枚ずつ分離して給紙する
とともに、前記後壁面と前記前壁面のうち少なくとも一
方が相互に近接する方向に移動して前記記録紙を保持す
る給紙装置であって、前記記録紙載置部の前記底面が、
前記前壁面側から前記後壁面側に向かって下降する所定
角度の傾斜面に形成され、前記後壁面と前記前壁面が、
鉛直方向と前記底面の傾斜面に対して直角方向との間の
所定の傾斜角度だけ前記後壁面側に傾斜する傾斜面に形
成され、前記前壁面側の先頭の前記記録紙の上端を他の
前記記録紙の上端から上方向にずらせて載置することを
特徴とする給紙装置。3. A plurality of cut recording papers are set on a bottom surface of a recording paper mounting portion in a substantially vertical direction, and rear surfaces of the plurality of recording papers set in the substantially vertical direction are rear wall surfaces. , The front side of the recording paper is held by the front wall surface, and the recording paper is separated and fed one by one from the leading recording paper on the front wall side, and at least one of the rear wall surface and the front wall surface Is a paper feeder that moves in a direction approaching each other and holds the recording paper, wherein the bottom surface of the recording paper placement unit is
Formed on a slope of a predetermined angle descending from the front wall side toward the rear wall side, the rear wall and the front wall,
An inclined surface that is inclined toward the rear wall by a predetermined inclination angle between a vertical direction and a direction perpendicular to the inclined surface of the bottom surface, and the upper end of the recording paper at the front of the front wall surface is attached to another. A sheet feeding device, wherein the recording sheet is placed so as to be shifted upward from an upper end of the recording sheet. 【請求項４】前記先頭の記録紙は、当該記録紙に平行に
上方向に給紙されることを特徴とする請求項１から請求
項３のいずれかに記載の給紙装置。4. The sheet feeding device according to claim 1, wherein the leading recording sheet is fed upward in parallel with the recording sheet. 【請求項５】前記給紙装置は、前記先頭の記録紙の上端
と当該先頭の記録紙に隣接する前記記録紙の上端とのず
れの部分に空気を噴出する空気噴出手段を、さらに備え
ていることを特徴とする給紙装置。5. The paper feeding device further comprises air blowing means for blowing air to a portion where the upper end of the leading recording paper is shifted from the upper end of the recording paper adjacent to the leading recording paper. A sheet feeding device. 【請求項６】前記給紙装置は、前記記録紙載置部の前記
底面に、前記後壁面と前記前壁面方向に延在して形成さ
れた通風スリットと、前記通風スリットを通して前記底
面上に略鉛直方向に載置されている前記記録紙に空気を
噴出する空気噴出手段と、をさらに備えたことを特徴と
する請求項１から請求項５のいずれかに記載の給紙装
置。6. A paper feeding device, wherein: a ventilation slit formed on the bottom surface of the recording paper placement portion so as to extend in a direction of the rear wall surface and the front wall surface; The paper feeding device according to any one of claims 1 to 5, further comprising: an air ejecting unit that ejects air to the recording paper placed in a substantially vertical direction. 【請求項７】前記空気噴出手段は、前記通風スリットに
沿って移動しつつ、前記記録紙に空気を噴出することを
特徴とする請求項６記載の給紙装置。7. The paper feeding device according to claim 6, wherein said air jetting means jets air to said recording paper while moving along said ventilation slit.