JPS6040331A - Paper feeding unit - Google Patents

Paper feeding unit

Info

Publication number
JPS6040331A
JPS6040331A JP58148310A JP14831083A JPS6040331A JP S6040331 A JPS6040331 A JP S6040331A JP 58148310 A JP58148310 A JP 58148310A JP 14831083 A JP14831083 A JP 14831083A JP S6040331 A JPS6040331 A JP S6040331A
Authority
JP
Japan
Prior art keywords
paper
gear
paper feeding
paper feed
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP58148310A
Other languages
Japanese (ja)
Inventor
Hiroshi Oida
老田 浩
Yutaka Sakai
裕 酒井
Yoshio Kushida
串田 嘉男
Toshiyasu Inoue
井上 利泰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP58148310A priority Critical patent/JPS6040331A/en
Publication of JPS6040331A publication Critical patent/JPS6040331A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00Supports or magazines for piles from which articles are to be separated
    • B65H1/08Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/14Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE:To obtain a light and compact paper feeding unit having high operability and simple construction at a low cost by elevatably holding a paper feeding table through a driving means while holding the position of the topmost sheet of paper on said paper feeding table at an accurate height through a detecting means. CONSTITUTION:A sheet of paper, which is sent out through a paper feeding means, is brought in contact with the paper feeding rollers of a copying machine with a uniform pressure, through a guide means. A paper feeding table 1 is elevatably held through a driving means consisting of links 3 to 6 which are combined with each other in an X shape, a drive gear 14f which drives the first gear 14e meshed with the drive gear 14f, a second gear 14d which is installed concentrically and in an integrated form with the gear 14e, a worm wheel 14c' having a third gear 14c meshed with the gear 14d, a worm gear 14b, and an elevating motor 14a. The position of the topmost sheet of paper on the paper feeding table 1 can be held at an accurate height through a detecting means 13 for detecting the position of the paper feeding means.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、複写機などに装着して用いることができる給
紙装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a paper feeding device that can be attached to a copying machine or the like.

従来例の構成とその問題点 近年、複写機の高速化、大量コピー化に伴って、給紙力
セクトの大容量化が市場の声として強まってきておシ、
すぐにいくつかの大容量給紙機が提案されている。
Conventional configurations and their problems In recent years, as copiers have become faster and made more copies, there has been a growing demand in the market to increase the capacity of the paper feed section.
Several large capacity paper feeders are soon being proposed.

従来の大容量給紙機では、給紙台の昇降動作を、上昇は
スプリングを利用して行ない、下降は手で押し下げるも
の、あるいはモーターと七ンサ等を組み合わせ、ワイヤ
ーやチェーン等で給紙台を昇降させるものがある。前者
のスプリングを利用した場合には、構造的には簡単であ
るが、下降を手動にて行なわなければならず、手間のか
かる面倒なものとなっている。また後者のモーターとセ
ンサ等を組み合わせ、ワイヤーやチェーン等で給紙台を
昇降させる機構を用いた場合には、構造的に複雑で高価
になるという欠点を有していた。さらに、これらの複雑
な機構を収納するために、大容量給紙機の奥行きや高さ
が大きくなシ、設置するスペースが不必要に大きくなっ
たシ、重量が重くなるために婦人が取シ扱い難いという
欠点を有していた。1だ、給紙台が水平であるために、
多量の用紙を給紙台上に載せる場合に用紙先端の紙そろ
えが面倒で、紙そろえが悪いためにミスフィードやジャ
ムを発生させることが多いという欠点を有していた。
In conventional large-capacity paper feeders, the paper feed tray is raised and lowered using a spring to raise it, and is lowered by pushing it down by hand, or by a combination of a motor and a separator, etc., and the paper feed tray is moved up and down using wires, chains, etc. There is something that raises and lowers the When the former spring is used, the structure is simple, but the lowering must be done manually, which is time-consuming and troublesome. Furthermore, when the latter mechanism is used in which a motor and a sensor are combined to raise and lower the paper feed tray using wires, chains, etc., the structure is complicated and expensive. Furthermore, in order to accommodate these complex mechanisms, the depth and height of the large-capacity paper feeder are large, the installation space is unnecessarily large, and the weight is heavy, making it difficult for women to install the machine. It had the disadvantage of being difficult to handle. 1, because the paper feed tray is horizontal,
When placing a large amount of paper on the paper feed table, it is troublesome to align the leading edge of the paper, and poor paper alignment often causes misfeeds and jams.

発明の目的 本発明の目的は、前記従来の欠点を除去し、簡単な構造
で軽量コンパクトでありしかも操作性の良い給紙装置を
安価に提供しようとするものである。
OBJECTS OF THE INVENTION An object of the present invention is to eliminate the above-mentioned conventional drawbacks and to provide a paper feeding device that has a simple structure, is lightweight, compact, and has good operability at a low cost.

発明の構成 本発明の給紙装置は、前端部が後端部よシ低くなるよう
に用紙送り方向に傾斜させた給紙台と、X字状に組合わ
せた複数のリンクと、前記給紙台の用紙送り方向側に用
紙送り方向と直角方向に配置した前記リンクの固定端を
駆動するだめの駆動手段と、前記給紙台の最上位の用紙
の位置を正確な高さに保つだめの検出手段とで構成した
ものであり、これによシ簡単な構造で軽量コンパクトで
操作性が良く、しかも安価な給紙装置が得られるもので
ある。
Structure of the Invention The paper feeding device of the present invention comprises: a paper feeding table tilted in the paper feeding direction so that the front end is lower than the rear end; a plurality of links combined in an X shape; and the paper feeding table. a drive means for driving a fixed end of the link arranged perpendicularly to the paper feed direction on the paper feed direction side; and a detection means for keeping the topmost paper on the paper feed tray at an accurate height; This makes it possible to obtain a paper feeding device that has a simple structure, is lightweight, compact, has good operability, and is inexpensive.

実施例の説明 以下、本発明の一実施例について、図面を参照しながら
説明する。
DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

第1図は、本発明に係る大容量給紙機の断面図、第2図
は同リンク装置およびその駆動手段の要部余[視図、第
3図はウオームギヤの詳細図である。
FIG. 1 is a cross-sectional view of a large-capacity paper feeder according to the present invention, FIG. 2 is a perspective view of the main parts of the link device and its driving means, and FIG. 3 is a detailed view of the worm gear.

第1図において、1は給紙台であシ、2は積層状態で収
納された用紙である。給紙台1は、前端部が後端部より
低くなるように用紙の進行方向に傾斜しており、用紙を
給紙台1上に載せる場合に用紙先端の紙そろえが容易に
行なえるようになっている。3,4.ts、e(6,e
は図示せず)は、給紙台1を昇降自在に支持するだめの
リンクである。7は用紙供給手段、7aは給紙ローラ、
8は分離ヅメである。給紙ローラ7aが矢印Aの方向に
回転することにより、用紙2の最上位の用紙のみを分離
ヅメ8で分離し、案内手段9に送り出す。
In FIG. 1, 1 is a paper feed tray, and 2 is paper stored in a stacked state. The paper feed tray 1 is inclined in the direction in which the paper travels so that the front edge is lower than the rear edge, so that when paper is placed on the paper feed tray 1, the leading edge of the paper can be easily aligned. It has become. 3,4. ts, e(6, e
(not shown) is a link that supports the paper feed tray 1 so that it can be raised and lowered. 7 is a paper supply means, 7a is a paper feed roller,
8 is a separation piece. By rotating the paper feed roller 7a in the direction of the arrow A, only the uppermost sheet of the sheets 2 is separated by the separating tab 8 and sent to the guide means 9.

送り出された用紙は、下ガイド板9aと上ガイド板9b
とで案内され、複写機本体の給紙ローラ10の下へと送
り出される。送り出された用紙の先端は、用紙到着セン
サ9Cで検出され、一定時間後に給紙ローラ了aの回転
は停止され、用紙先端が複写機本体の給紙ローラ10の
下に確実にかみ込むように制御される。9dは抑圧ロー
ラであり、給紙ローラ7aの回転中は、ソレノイド11
の作用で抑圧ローラ9dを下に下げ、複写機本体の給紙
ローラ10と下ガイド板9aとの間にすきまを設けてい
る。一方給紙ローラ7aが停止中は、下ガイド板9aを
一定の圧力で押し上げ、送り込まれた用紙を複写機本体
の給紙ローラ10に均一に押し当てるように制御される
。送り込まれた用紙は、複写機本体の給紙ローラ10が
矢印Bの方向に回転することにより複写機本体に供給さ
れる。
The fed paper passes through the lower guide plate 9a and the upper guide plate 9b.
The paper is guided by the paper feed roller 10 of the main body of the copying machine and sent out under the paper feed roller 10 of the main body of the copying machine. The leading edge of the fed paper is detected by the paper arrival sensor 9C, and after a certain period of time, the rotation of the paper feed roller R a is stopped to ensure that the leading edge of the paper is caught under the paper feeding roller 10 of the copying machine main body. controlled. 9d is a suppression roller, and the solenoid 11 is operated while the paper feed roller 7a is rotating.
This action lowers the suppression roller 9d to create a gap between the paper feed roller 10 of the copying machine main body and the lower guide plate 9a. On the other hand, while the paper feed roller 7a is stopped, the lower guide plate 9a is pushed up with a constant pressure, and the fed paper is controlled to be evenly pressed against the paper feed roller 10 of the main body of the copying machine. The fed paper is supplied to the copying machine main body as the paper feed roller 10 of the copying machine main body rotates in the direction of arrow B.

供給された用紙の後端が、用紙到着センサ9cで検出さ
れると給紙ローラ7aが矢印Aの方向に回転し、次の用
紙を送り出す。
When the trailing edge of the supplied paper is detected by the paper arrival sensor 9c, the paper feed roller 7a rotates in the direction of arrow A and feeds out the next paper.

用紙供給手段7において、7bは給紙ローラ7aを駆動
する駆動軸、7cは駆動軸7bを回転中心として給紙ロ
ーラ7aを支持する支持部材、7dは支持部材に取り付
けた位置検出用軸である。積層された用紙2が減少して
いくと給紙ローラ7aの位置も下降する。これにより位
置検出用軸7dの位置も下降し、レバー12を押し下げ
、給紙台検出センサ13により給紙台1の下降を検出し
、昇降モータ14aに信号を伝え、給紙台検出センサ1
3による停止信号発生寸で昇降モータ14aを駆動する
In the paper supply means 7, 7b is a drive shaft that drives the paper feed roller 7a, 7c is a support member that supports the paper feed roller 7a with the drive shaft 7b as the rotation center, and 7d is a position detection shaft attached to the support member. . As the number of stacked sheets 2 decreases, the position of the paper feed roller 7a also decreases. As a result, the position of the position detection shaft 7d is also lowered, the lever 12 is pushed down, the lowering of the paper feed tray 1 is detected by the paper feed tray detection sensor 13, a signal is transmitted to the lift motor 14a, and the paper feed tray detection sensor 1
3, the lifting motor 14a is driven at the stop signal generation timing.

昇降モータ14aの駆動力伝達系は第2図に示すように
、その出力軸にはウオームギヤ14bが配設され、小ギ
ヤ14cと一体もしくは同軸に固着されたウオームホイ
ル14C’、大ギヤ14d。
As shown in FIG. 2, the driving force transmission system of the lifting motor 14a has a worm gear 14b disposed on its output shaft, a worm wheel 14C' fixed integrally or coaxially with a small gear 14c, and a large gear 14d.

大ギヤ14dと同心状に一体に取り付けた小ギヤ14e
、扇形の駆動ギヤ14fを回転駆動させるよう構成して
いる。そして駆動ギヤ14fはリンク駆動軸16にその
回動中心が嵌着等で固定されており、リンク駆動軸15
を駆動ギヤ14f、この駆動ギヤとかみ合う第1のギヤ
(小ギヤ)14e 。
Small gear 14e integrally attached concentrically with large gear 14d
, is configured to rotationally drive a fan-shaped drive gear 14f. The drive gear 14f has its rotation center fixed to the link drive shaft 16 by fitting or the like, and the link drive shaft 15
a drive gear 14f, and a first gear (small gear) 14e that meshes with this drive gear.

第2のギヤ(大ギヤ14d)、第2のギヤとかみあう第
3のギヤ(小ギヤ)14cを有したウオームホイル14
C’、ウオームホイルとかみ合っているウオームギヤ1
4bを介して昇降モータ14aの駆動力で回動させるよ
うにしている。なお、駆動ギヤ14fを扇形としたが、
これに限定されるものではなく円形、半円形等にしても
同様の作用が行える。これらの駆動手段14は、第1図
、第2図から明らかなように前記給紙台1の用紙送シ方
向側に用紙送部方向と直角方向に配置しである。
Worm wheel 14 having a second gear (large gear 14d) and a third gear (small gear) 14c that meshes with the second gear
C', worm gear 1 meshing with the worm wheel
He is trying to rotate it by the driving force of the lifting motor 14a via 4b. Although the drive gear 14f is fan-shaped,
The shape is not limited to this, and the same effect can be obtained even if the shape is circular, semicircular, etc. As is clear from FIGS. 1 and 2, these drive means 14 are arranged on the sheet feeding direction side of the sheet feeding tray 1 in a direction perpendicular to the sheet feeding direction.

また、リンク駆動軸16には、リンク3,4が連結され
ており、その中央部にはリンク6.6が連結軸16によ
りX字状に連結されている。リンク5,6の下端部は軸
19にょシ連結されておシ、ローラ1sa、19bを介
してリンクレール2゜21に沿って水平方向に移動自在
に係合されている。一方、リンク3. 4. 5. 6
の上端部は、軸17.18で用紙の進行方向に傾斜した
状態で連結されており、それぞれその両端部のローラ1
7a。
Further, links 3 and 4 are connected to the link drive shaft 16, and links 6 and 6 are connected to the center thereof in an X-shape by the connection shaft 16. The lower ends of the links 5 and 6 are connected to a shaft 19 and are engaged so as to be movable in the horizontal direction along link rails 2.degree. 21 via rollers 1sa and 19b. On the other hand, link 3. 4. 5. 6
The upper ends are connected by shafts 17 and 18 in an inclined manner in the direction of paper advance, and are connected to rollers 1 at both ends.
7a.

17b、18a、1sbを介して給紙台1を、前端部が
後端部より低くなるように用紙の進行方向に斜係した状
態で昇降自在に係合している。
The paper feed tray 1 is engaged with the paper feed tray 1 via 17b, 18a, and 1sb so that it can move up and down in a diagonal manner in the direction in which the paper travels so that the front end is lower than the rear end.

第3図において、14hはウオームギヤ14aに一体に
取付けだスラストメタルであり、モータ端部14gと摩
擦接触することにより、給紙台1上に積層状態で収納さ
れた用紙2の荷重により、ウオームギヤ14bが逆回転
するのを防止している。
In FIG. 3, reference numeral 14h denotes a thrust metal integrally attached to the worm gear 14a. By making frictional contact with the motor end 14g, the load of the sheets 2 stored in a stacked state on the paper feed table 1 is applied to the worm gear 14b. prevents it from rotating in reverse.

以上のように構成された本実施例の大容量給紙機におけ
る給紙装置について以下その動作をβI!リノする。ま
ず、給紙ローラ7aの給紙動作により、給紙台1上に積
層状態で収納した用紙2が減少すると、これに伴い給紙
ローラ7dが下降するとともに、位置検出用軸7dの位
置も下降し、レバー12を押し下げ、給紙台検出センサ
13により、用紙2の最上位の位置の下降を検出し、昇
降モータ14aに信号を伝え、昇降モータ14aを駆動
する。昇降モータ14aの駆動によシ、つA−ムギャ1
4b、ウオームホイル14C9大ギヤ14d。
The operation of the paper feeding device in the large-capacity paper feeding machine of this embodiment configured as described above will be described below. Reno. First, when the number of sheets of paper 2 stacked on the paper feed table 1 decreases due to the paper feeding operation of the paper feed roller 7a, the paper feed roller 7d descends and the position of the position detection shaft 7d also descends. Then, the lever 12 is pushed down, and the paper feed tray detection sensor 13 detects the lowering of the uppermost position of the paper 2, transmits a signal to the lifting motor 14a, and drives the lifting motor 14a. By driving the lifting motor 14a, the A-mgya 1
4b, worm wheel 14C9 large gear 14d.

小ギヤ14e、扇形ギヤ14fを介してリング駆動軸1
6を駆動し、これによシリンジ3,4,6゜6を介して
給紙台1が上昇する。給紙台1の上昇に伴い給紙ローラ
7aが上昇するとともに、位置検出用軸7dの位置も上
昇することによりレバー12も上昇し、給紙台検出セン
サ13により給紙台1の上昇を検出し、昇降モータ14
aを停止させる。
The ring drive shaft 1 is connected to the ring drive shaft 1 via the small gear 14e and the sector gear 14f.
6, thereby raising the paper feed table 1 via the syringes 3, 4, and 6. As the paper feed tray 1 rises, the paper feed roller 7a rises, and the position of the position detection shaft 7d also rises, causing the lever 12 to also rise, and the paper feed tray detection sensor 13 detects the rise of the paper feed tray 1. and lifting motor 14
Stop a.

以上のように本実施例によれば、簡単な構造で給紙台上
の最上位の用紙の位置を、jE確な高さに保つようにし
た給紙装置を実現している。
As described above, according to this embodiment, a sheet feeding device is realized with a simple structure that maintains the position of the uppermost sheet on the sheet feeding tray at a precise height.

発明の効果 以上の説明から明らかなように、本発明は前端部が後端
部よシ低くなるように用紙送部方向に傾斜させた給紙台
と、X字状に組合わせた複数のリンクと、給紙台の用紙
送り方向側に用紙送り方向と直角方向に配置したリンク
の固定端を駆動するだめの駆動手段と、給紙台の最上位
の用紙の位置を正確な高さに保つための検出手段とで構
成したものであシ、これによシ簡単な構造で軽量コンパ
クトな給紙装置が安価に実現できるため、大容量給紙機
の奥行きや高さを小さくすることができ、複写機への設
置スペースも小さくできる。−i:た大容量給紙機の重
量も軽くなるため、婦人でも容易に取シ扱いできるよう
になった。一方、給紙台が用紙送り方向に傾斜している
だめに、多量用紙を給紙台上に載せる場合に、用紙先端
の紙そろえが簡単にでき、ミスフィードやジャムを発生
することを防止できるという数々の優れた効果が得られ
る。さらに、ウオームギヤに一体に取り付けたスラスト
メタルにより、昇降モータ軸受部に大きな荷重がかかる
のを防止するとともに、小さな減速比で起こシがちなウ
オームギヤの逆転現像を防止でき、ソレノイド等を用い
た複雑な逆転防止機構を使用することなく小さな減速比
でウオームギヤの逆転現像のない給紙台昇降装置が実現
できるために、大幅な部品点数の削減と制御回路の簡素
化が実現できるという優れた効果が得られる。
Effects of the Invention As is clear from the above description, the present invention comprises a paper feed tray that is inclined in the paper feeding direction so that the front end is lower than the rear end, and a plurality of links that are combined in an X shape. and a drive means for driving the fixed end of the link arranged perpendicular to the paper feeding direction on the paper feeding direction side of the paper feeding tray, and a drive means for driving the fixed end of the link arranged on the paper feeding direction side of the paper feeding tray, and a drive means for keeping the position of the topmost paper on the paper feeding tray at an accurate height. With this, a lightweight and compact paper feeding device with a simple structure can be realized at low cost, making it possible to reduce the depth and height of a large-capacity paper feeding device, making it easy to copy. The installation space on the machine can also be reduced. -i: The weight of the large-capacity paper feeder has also been reduced, making it easier for women to handle it. On the other hand, since the paper feed tray is tilted in the paper feeding direction, when placing a large amount of paper on the paper feed tray, it is possible to easily align the leading edge of the paper and prevent misfeeds and jams. Many excellent effects can be obtained. Furthermore, the thrust metal integrally attached to the worm gear prevents large loads from being applied to the lifting motor bearing, and also prevents reverse development of the worm gear, which tends to occur with small reduction ratios. Since it is possible to realize a paper feed table lifting device without reverse development of the worm gear with a small reduction ratio without using a reverse rotation prevention mechanism, it has the excellent effect of significantly reducing the number of parts and simplifying the control circuit. It will be done.

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

第1図は本発明の一実施例における給紙装置の断面図、
第2図は同実施例のリンク装置およびその駆動手段の要
部斜視図、第3図は同実施例のウオームギヤの詳細図で
ある。 1・・・・・・給紙台、2・・・・・・積層状態で収納
された用紙、3. 4. 5. 6・・・・・・リンク
、7・・・・・・用紙供給手段、9・・・・・・案内手
段、13・・・・・・検出手段、14・・・・・・駆動
手段、14a・・・・・・昇降モータ、14b・・・・
・・ウオームギヤ、14c・・・・・・ウオームホイル
、14d・・・・・・大ギヤ、14e・・・・・・小ギ
ヤ、14f・・・・・・扇ギヤ、14f・・・・・・ス
ラストメタル。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第2
FIG. 1 is a sectional view of a paper feeding device in an embodiment of the present invention;
FIG. 2 is a perspective view of the main parts of the link device and its driving means of the same embodiment, and FIG. 3 is a detailed view of the worm gear of the same embodiment. 1... Paper feed tray, 2... Paper stored in a stacked state, 3. 4. 5. 6... Link, 7... Paper supply means, 9... Guide means, 13... Detection means, 14... Drive means, 14a... Lifting motor, 14b...
...Worm gear, 14c...Worm wheel, 14d...Large gear, 14e...Small gear, 14f...Fan gear, 14f...・Thrust metal. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (1)

【特許請求の範囲】 0)用紙を積層状態で収納する給紙台と、前記給紙台上
の最上位の用紙に接触しこれを送り出すための用紙供給
手段と、送り出された用紙を複写機の給紙ローラに均等
な圧力で接触させるだめの案内手段とを備え、前記給紙
台を、X字状に組合わせた複数のリンクと、前記リンク
の固定端を駆動する駆動ギヤと、前記駆動ギヤとかみ合
う第1のギヤと、前記第1のギヤと同心状に一体に取り
付けた第2のギヤと、前記第2のギヤとかみ合う第3の
ギヤを有したウオームホイルと、ウオームギヤと昇降モ
ーターで構成する駆動手段とで昇降自在に保持するとと
もに、前記用紙供給手段の位置を検出するための検出手
段にょシ前記給紙台上の最上位の用紙の位置を正確な高
さに保つようにした給紙装置。 (2)駆動手段を、給紙台の用紙送り方向側に用紙送り
方向と直角方向に配置したことを特徴とする特許請求の
範囲第1項記載の給紙装置。 (3)給紙台を、前端部が後端部より低くなるように用
紙の進行方向に傾斜させたことを特徴とする特許請求の
範囲第1項記載の給紙装置。 (4) ウオームギヤの昇降モータ側端面に、スラスト
メタルを一体に取付けたことを特徴とする特許請求の範
囲第1項記載の給紙装置。
[Scope of Claims] 0) A paper feed tray that stores sheets in a stacked state, a paper feed means that contacts and feeds the uppermost sheet on the paper feed tray, and a copying machine that feeds the fed sheets. a guide means for contacting the paper feed roller with equal pressure, a plurality of links combining the paper feed table in an X shape, a driving gear for driving fixed ends of the links; A worm wheel having a first gear that meshes with a drive gear, a second gear that is integrally attached concentrically with the first gear, and a third gear that meshes with the second gear; A driving means constituted by a motor holds the sheet movably up and down, and a detecting means for detecting the position of the sheet feeding means maintains the position of the uppermost sheet on the sheet feeding table at an accurate height. paper feed device. (2) The paper feeding device according to claim 1, wherein the driving means is arranged on the paper feeding direction side of the paper feeding tray in a direction perpendicular to the paper feeding direction. (3) The paper feeding device according to claim 1, wherein the paper feeding tray is inclined in the direction in which the paper travels so that the front end is lower than the rear end. (4) The paper feeding device according to claim 1, characterized in that a thrust metal is integrally attached to the end face of the worm gear on the side of the lifting motor.
JP58148310A 1983-08-12 1983-08-12 Paper feeding unit Pending JPS6040331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58148310A JPS6040331A (en) 1983-08-12 1983-08-12 Paper feeding unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58148310A JPS6040331A (en) 1983-08-12 1983-08-12 Paper feeding unit

Publications (1)

Publication Number Publication Date
JPS6040331A true JPS6040331A (en) 1985-03-02

Family

ID=15449925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58148310A Pending JPS6040331A (en) 1983-08-12 1983-08-12 Paper feeding unit

Country Status (1)

Country Link
JP (1) JPS6040331A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140946A (en) * 1985-12-11 1987-06-24 Nippon Seimitsu Kogyo Kk Sheet feeding device
JPS62171839A (en) * 1986-01-21 1987-07-28 Konishiroku Photo Ind Co Ltd Automatic feeder for sheetlike article
US5154408A (en) * 1990-12-28 1992-10-13 Pitney Bowes Inc. High capacity sheet feeder with adjustable deck

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477966A (en) * 1978-03-28 1979-06-21 Ricoh Co Ltd Sheet tray elevator
JPS57151541A (en) * 1981-03-12 1982-09-18 Konishiroku Photo Ind Co Ltd Feed-paper device for copying machine, etc.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477966A (en) * 1978-03-28 1979-06-21 Ricoh Co Ltd Sheet tray elevator
JPS57151541A (en) * 1981-03-12 1982-09-18 Konishiroku Photo Ind Co Ltd Feed-paper device for copying machine, etc.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140946A (en) * 1985-12-11 1987-06-24 Nippon Seimitsu Kogyo Kk Sheet feeding device
JPH0479935B2 (en) * 1985-12-11 1992-12-17 Nisuka Kk
JPS62171839A (en) * 1986-01-21 1987-07-28 Konishiroku Photo Ind Co Ltd Automatic feeder for sheetlike article
US5154408A (en) * 1990-12-28 1992-10-13 Pitney Bowes Inc. High capacity sheet feeder with adjustable deck

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