JPS6155031A - Paper feeding cassette for copying machine - Google Patents

Paper feeding cassette for copying machine

Info

Publication number
JPS6155031A
JPS6155031A JP17699484A JP17699484A JPS6155031A JP S6155031 A JPS6155031 A JP S6155031A JP 17699484 A JP17699484 A JP 17699484A JP 17699484 A JP17699484 A JP 17699484A JP S6155031 A JPS6155031 A JP S6155031A
Authority
JP
Japan
Prior art keywords
paper feed
feed cassette
paper
push
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP17699484A
Other languages
Japanese (ja)
Other versions
JPH0577571B2 (en
Inventor
Shiro Morishita
森下 四郎
Hiroaki Uchiyama
裕章 内山
Yoko Kotani
小谷 洋子
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP17699484A priority Critical patent/JPS6155031A/en
Publication of JPS6155031A publication Critical patent/JPS6155031A/en
Publication of JPH0577571B2 publication Critical patent/JPH0577571B2/ja
Granted 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
    • B65H1/26Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B65H1/266Support fully or partially removable from the handling machine, e.g. cassette, drawer
    • 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
    • B65H1/12Supports 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 spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE:To facilitate paper feeding by operating a loading board depressing member being interlocked with a cover body opening operation through gears to depress said loading board, while fixing said cover body in an opened position by means of a ratchet mechanism. CONSTITUTION:When a cover board 12 is swung in an opening direction, gears 19, 21, 22 are meshed and rotate in order via the rotation of a shaft 14. Thereby, the end of a depressing board 16 is turned downward via the rotation of a rotatably supported shaft 18, causing a depressing arm 15 to depress a loading board 7 downward, to creat a gap for containing sheets of paper between the loading board 7 and a paper feeding roller 3. At the same time, a ratchet wheel 23 which is formed in an integrated form with the gear 21, rotates sliding over a ratchet rack 25. Since the ratchet wheel 23 is engaged with ratchet teeth 25 in the cover board 12 closing direction, however, the cover board 12 never falls in the closing direction even if it is released. The cover 12 can be closed by manually releasing the engagement between the ratchet rack 25 and the ratchet wheel 23. Thereby, feeding can be facilitated.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は複写機に装填され給紙カセツI・に関するもの
で、特に給紙カセットに複写用紙を補給する際に、給紙
カセットを複写機から離脱せずに複写機に装填した状態
で複写用紙を補給できる複写機用給紙カセットに関する
ものである。
Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a paper feed cassette I that is loaded into a copying machine. The present invention relates to a paper feed cassette for a copying machine that allows copy paper to be replenished while loaded in the copying machine without separating from the copying machine.

「従来技術」 従来複写機により原稿を複写するには、複写に適するサ
イスの複写用紙を給紙カセットに収納し複写用紙を収納
した給紙力セラ1−を複写機に装填して複写作業を行っ
ていた。このような給紙力セントを使用して複写作業を
行うことは給紙の手間を省いたり、複写機にジャムなと
の一事故を起させないという点で都合のよいものである
``Prior Art'' Conventionally, in order to copy a document using a copying machine, copy paper of a size suitable for copying is stored in a paper feed cassette, the paper feed cassette containing the copy paper is loaded into the copy machine, and the copying operation is performed. I was going. Performing copying operations using such paper feeding power cents is convenient in that it saves the effort of feeding paper and prevents accidents such as jams in the copying machine.

しかしながら給紙カセット内の複写用紙か費消されて新
しい複写用紙を給紙カセットに補給する場合とか、異っ
たサイズの複写用紙へ複写する必要か生じた場合には、
その都度複写機から給紙力セントを取出し、給紙カセッ
トの蓋板を開放して所望の複写用紙を給紙カセットに補
給し、補給し終った給紙カセットの蓋板を閉塞してから
再ひ給紙カセットを複写機に装填しなければならないき
いう煩雑な作業があった。そのため給紙カセットを複写
機に装填したままの状態で、給紙カセットの蓋板を開放
して複写用紙を給紙カセットに補給する装置(実開昭5
7−7174.3号)か開発されている。
However, when the copy paper in the paper cassette is used up and you replenish the paper cassette with new copy paper, or when it becomes necessary to copy onto copy paper of a different size,
Each time, remove the paper feed center from the copying machine, open the cover plate of the paper feed cassette, replenish the paper feed cassette with the desired copy paper, close the cover plate of the paper feed cassette that has been replenished, and then try again. There was a complicated task of loading the paper cassette into the copying machine. Therefore, a device that replenishes copy paper into the paper cassette by opening the cover plate of the paper cassette while the paper cassette is still loaded in the copying machine.
7-7174.3) has been developed.

「発明が解決しようとする問題点」 ところがこのような装置では給紙カセットの蓋板を開放
途中で静止させる機描か備えられていないので、複写用
紙を給紙カセットに補給するときは、片手で蓋板の開放
を支え他方の片手で補給すべき新しい複写用紙を持って
給紙カセットに複写用紙を補給しなければならない。こ
の片手で多数の複写用紙は持つことは持ち難くそのため
給紙カセットに複写用紙を補給することは円滑に進まな
く補給に困難かあるという問題点があり、より給紙カセ
ットに簡単に複写用紙を補給できる給紙カセットの開発
が期待されていた。
``Problems to be Solved by the Invention'' However, such devices do not have a mechanism for stopping the cover plate of the paper feed cassette in the middle of opening, so when replenishing copy paper into the paper feed cassette, it is necessary to use one hand. The user must support the opening of the cover plate and hold the new copy paper to be replenished with the other hand to replenish the paper feed cassette with copy paper. It is difficult to hold a large number of copy papers with one hand, so replenishing the paper cassette with copy paper does not proceed smoothly and is sometimes difficult. There were expectations for the development of a refillable paper feed cassette.

「問題点を解決するための手段」 そこでこの発明は、このような従来の問題点に着目して
なされたものであって、 基端縁部が給紙カセット4の底壁5により枢支され、先
端縁部が前記底壁5との間に介装された押圧ばね8によ
り常時上方へ郊倚力を付与されていることにより、前記
給紙カセット4内に複写用紙が装填された状態で前記給
紙カセット4か複写機本体1の給紙カセット挿入口2に
挿入された際には前記複写用紙の先端縁部を前記複写機
本体1側の゛給紙ローラ3へ向けて押圧する乗載板7と
、前記給紙カセット4の上部を覆うように先端縁側か前
記給紙カセット4に対して枢支された蓋板12さ、後端
縁部が前記蓋板12の先端縁部に近接して前記給紙カセ
ット4に対して枢支され、先端方向には前記給紙カセッ
ト4内に収納された複写用紙出干渉しない位置において
前記乗載板7を下方へ押し下げるための押し下げ腕15
 、15’か突出している押し下げ板16と、前記差板
12の後端縁側か上方へ揺動されるに従って前記押し下
げ板16の押し下げ腕15 、 I 5’か前記押圧板
7を下方へ押し下げるように、前記蓋板12の枢支部と
前記押し下げ板16の枢支部とを連動させる連動歯車機
構を構成する歯車群19,21.22と、これら歯車群
19,21.2’2のうちの任意の一つの歯車21と一
体的に回転するラチェット歯車23と、前記蓋板12を
揺動可能な範囲内の任煮の開放位置において停止した状
態に保持することができるように前記ラチェット歯車2
3と噛み合うラチェット爪25とを備えた複写機用給紙
カセット を提供して、給紙カスットを複写機に装填したままの状
態で複写用紙を簡単に給紙カセットに補給できる給紙カ
セットを得ることにより、上記の問題点を解決すること
を目的とするものである。
``Means for Solving the Problems'' Therefore, the present invention has been made by focusing on such problems in the conventional art. , the leading edge is constantly applied an upward force by a pressure spring 8 interposed between it and the bottom wall 5, so that when copy paper is loaded in the paper feed cassette 4, When the paper feed cassette 4 is inserted into the paper feed cassette insertion slot 2 of the copying machine main body 1, a roller presses the leading edge of the copy paper toward the paper feed roller 3 on the copying machine main body 1 side. A mounting plate 7, a cover plate 12 which is pivoted to the paper feed cassette 4 on the front edge side so as to cover the upper part of the paper feed cassette 4, and a rear edge thereof is attached to the front edge of the cover plate 12. A push-down arm 15 is pivotably supported in the vicinity of the paper feed cassette 4, and extends toward the distal end for pushing down the mounting plate 7 at a position where copy sheets stored in the paper feed cassette 4 do not come out and interfere with each other.
, 15' are protruding push-down plates 16, and as the rear end edge side of the difference plate 12 is swung upward, the push-down arms 15, I5' of the push-down plates 16 push down the press plate 7 downward. A gear group 19, 21.22 that constitutes an interlocking gear mechanism that interlocks the pivot portion of the cover plate 12 and the pivot portion of the push-down plate 16, and any one of these gear groups 19, 21.2'2. a ratchet gear 23 that rotates integrally with one gear 21; and a ratchet gear 23 that rotates integrally with one gear 21 of
To provide a paper feed cassette for a copying machine equipped with a ratchet pawl 25 that engages with the paper feed cassette 3, and to easily replenish the paper feed cassette with copy paper while the paper feed cassette remains loaded in the copying machine. The purpose of this is to solve the above problems.

「実施例」 以下図面に従って本考案の構成が実際上とのように具体
化されるかをその作用とともに説明する。
``Example'' Hereinafter, with reference to the drawings, how the configuration of the present invention is actually embodied will be explained along with its operation.

゛第1図は本発明の一実施例に基づく複写機用給紙カセ
ットの平面図、第2図は第1図の給紙カセットの縦断面
図であって、図中1は複写機本体であり、この複写機本
体1の一側壁に給紙カセット挿入口2が形成され、この
給紙カセット挿入口2の上部の複写機本体1に、複写用
紙を複写機本体1へ送入する給紙ローラ3が設けられて
いる。
゛FIG. 1 is a plan view of a paper feed cassette for a copying machine according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the paper feed cassette of FIG. A paper feed cassette insertion slot 2 is formed on one side wall of this copying machine main body 1, and a paper feeder for feeding copy paper into the copying machine main body 1 is provided in the copying machine main body 1 above this paper feeding cassette insertion slot 2. A roller 3 is provided.

4はこの給紙カセット挿入口2に装填される給紙カセッ
トで長方形の枠体をなしている。この給紙カセット4の
底壁5には枢支スリット6が穿設されてあり、この枢支
スリット6に乗載板7の基端縁部か枢支され、この乗載
板7の先;ii、i縁部き前記底壁5(!:の間には押
圧ばね8が介装され、この押圧(fね8により常時乗載
板7は上方への偏倚力かけ与され、その結果給紙カセッ
ト4内に複写用俄か収納された状態で給紙カセット4か
前記給紙カセツ]−挿入口2に装填されたおきには、複
写用紙の先端縁部を前記複写機体1側の給紙ローラ3へ
向けて押圧している。
A paper feed cassette 4 is loaded into the paper feed cassette insertion slot 2 and has a rectangular frame. A pivot slit 6 is bored in the bottom wall 5 of the paper feed cassette 4, and the proximal edge of a mounting plate 7 is pivoted to the pivot slit 6. A pressure spring 8 is interposed between the bottom wall 5 (!) with the edges ii and i, and this pressure (f spring 8) always applies an upward biasing force to the mounting plate 7, resulting in When the copy paper is stored in the paper cassette 4 for copying and loaded into the paper feed cassette 4 or the paper feed cassette]-insertion slot 2, the leading edge of the copy paper is inserted into the paper feed cassette on the side of the copying machine 1. It is pressed toward the paper roller 3.

9.10は給紙カセット4の側壁で、この側壁9と平行
に間隔をおいて仕切板11が設けられている。この仕切
板11と側壁10との間で給紙カセット4の後方部に給
紙カセット4を閉鎖する蓋板12が位置し、この蓋板1
2の先端縁側で前記仕切板11と対向している裏面には
ブラケット13が垂設され、このブラケット13に枢支
軸】・1が固定され、この枢支軸14は前記仕切板11
を貫通して前記側壁9に向けて突出され、蓋板12はこ
の枢支軸14を軸として第3図に示すように回動可能で
ある。
9.10 is a side wall of the paper feed cassette 4, and partition plates 11 are provided parallel to this side wall 9 at intervals. A cover plate 12 for closing the paper feed cassette 4 is located at the rear of the paper feed cassette 4 between the partition plate 11 and the side wall 10.
A bracket 13 is installed vertically on the back surface facing the partition plate 11 on the tip edge side of the bracket 13, and a pivot shaft 1 is fixed to this bracket 13, and this pivot shaft 14 is connected to the partition plate 11.
The cover plate 12 is rotatable about the pivot shaft 14 as shown in FIG. 3.

この蓋板12の先端縁部に近接して前記給紙カセット4
の前方部に押し下げ板16か位置し、この押し下げ板1
6の先端縁側から前記給紙カセット4に収納された複写
用紙と干渉しない位置において前記乗載板7を下方へ押
し下げるための押し下げ腕15 、15’か突出されて
いる。この押し下げ板16の後端縁側で前記仕切板11
と対向している裏面にはブラケット17か垂設され、こ
のブラケット17に枢支軸18が固定され、この枢支軸
18は前記仕切板11を貫通して前記側壁9に向けて突
出され、第3図に示されるように押し下げ板16は枢支
軸18を軸として下方に回動しする。その結果押し下げ
腕15 、15’が前記乗載板7を押圧ばね8に抗して
押し下げるこさにより、乗載板7と前記給紙ローラ3と
の間に複写用紙が収納できる間隔が生ずる。
The paper feed cassette 4 is located close to the tip edge of the cover plate 12.
A push-down plate 16 is located in the front part of the
Push-down arms 15 and 15' for pushing down the mounting plate 7 are protruded from the leading edge side of the paper feed cassette 4 at a position that does not interfere with the copy sheets stored in the paper feed cassette 4. The partition plate 11 is located on the rear edge side of this push-down plate 16.
A bracket 17 is vertically installed on the back surface facing the partition plate 11, a pivot shaft 18 is fixed to the bracket 17, and the pivot shaft 18 penetrates the partition plate 11 and projects toward the side wall 9. As shown in FIG. 3, the push-down plate 16 rotates downward about the pivot shaft 18. As a result, due to the force with which the push-down arms 15, 15' push down the mounting plate 7 against the pressure spring 8, a gap is created between the mounting plate 7 and the paper feed roller 3 in which copy sheets can be accommodated.

一端か前記蓋板12に垂設されているブラケット13に
固定されている前記枢支軸14の他端には歯車19が固
設されている。この歯車19に歯車21が噛合され、こ
の歯車21には歯車軸20か貫通して固定され、貫通し
た歯車軸20の一17i!1iは前記仕切板11に枢支
されている。また歯車19と噛合している歯車21の歯
車19と噛合している面の反対面には歯車22が噛合さ
れ、この歯車22は前記押し下げ板17の裏面に垂設さ
れているブラケット17に一端が固定されている前記枢
支軸18の他端と固定されている。また一端か前記仕切
板11に枢支されている歯車20の他i/rfflには
ラチェット歯車23が固定され、このラチェット歯車2
3にはラチェット爪25が接触し、このラチェット爪2
5には枢支軸24の一端か固定され、その他端は前記仕
切板11に枢支されているとともに、枢支軸24の周囲
にははね26か巻回され、このばね26はラチェット爪
25を常時ラチェット歯車23へ伺勢している。
A gear 19 is fixed to one end of the pivot shaft 14, which is fixed to a bracket 13 vertically disposed on the cover plate 12, and the other end of the pivot shaft 14. A gear 21 is meshed with this gear 19, and a gear shaft 20 is fixed to this gear 21 by passing through it. 1i is pivotally supported by the partition plate 11. Further, a gear 22 is engaged with the opposite surface of the gear 21 that is engaged with the gear 19, and one end of this gear 22 is attached to the bracket 17 that is vertically installed on the back surface of the push-down plate 17. is fixed to the other end of the pivot shaft 18 to which is fixed. In addition, a ratchet gear 23 is fixed to the other i/rffl of the gear 20 which is pivotally supported on the partition plate 11 at one end.
3 is in contact with a ratchet pawl 25, and this ratchet pawl 2
One end of the pivot shaft 24 is fixed to 5, and the other end is pivoted to the partition plate 11, and a spring 26 is wound around the pivot shaft 24, and this spring 26 is connected to a ratchet pawl. 25 to the ratchet gear 23 at all times.

次に以上の構成の複写機用給紙カセットに複写用紙を補
給する方法を説明する。先ず第1図、第2図に示される
ように給紙カセット4が複写機本体1に装填された状態
で複写用紙を給紙カセット、1に補給するには、前記蓋
板12を手て持ってその後端縁側を上方へ揺動して蓋板
を開放する。この蓋板12の後端縁側の上方への揺動に
従い蓋板12の先端縁側に枢支されている枢支軸14と
一体の歯車19は反時計方向に回転し、この歯車19が
反時計方向に回転すると歯車19と噛合している歯車2
1は時計方向に回転し、この歯車21か時計方向に回転
すると、歯車21と噛合している歯車22は反時計方向
に回転する。
Next, a method for replenishing copy paper into the paper feed cassette for a copy machine having the above configuration will be explained. First, as shown in FIGS. 1 and 2, in order to replenish copy paper into the paper cassette 1 with the paper cassette 4 loaded in the copying machine main body 1, hold the cover plate 12 in your hand. to open the cover plate by swinging the rear edge side upward. As the cover plate 12 swings upward on the rear edge side, a gear 19 integral with the pivot shaft 14 pivoted on the front edge side of the cover plate 12 rotates counterclockwise. Gear 2 meshing with gear 19 when rotated in the direction
1 rotates clockwise, and when gear 21 rotates clockwise, gear 22 meshing with gear 21 rotates counterclockwise.

この歯車22が反時計方向に回転すると、歯車22に一
端が固定されている枢支軸18か反時計方向に回転し、
この枢支@1118か反時計方向に回転すると、この枢
支軸18の他端に固定されている押し下げ板16は枢支
軸18を軸として下方に回動し、この押し下げ板16の
下方への回動につれて押し下げ板16から突出されてい
る押し下げ腕15 、15’が前記乗載板7と接して乗
載板7を押圧ばね8に抗して下方に押し下げることによ
り、乗載板7と給紙ローラ3との間に複写用紙か収納で
きる間隙が生ずる。
When the gear 22 rotates counterclockwise, the pivot shaft 18, one end of which is fixed to the gear 22, rotates counterclockwise.
When this pivot @1118 rotates counterclockwise, the push-down plate 16 fixed to the other end of this pivot shaft 18 rotates downward about the pivot shaft 18, and the push-down plate 16 is rotated downward. As the push-down arms 15 and 15' protrude from the push-down plate 16 as the push-down plate 16 rotates, the push-down arms 15 and 15' come into contact with the ride plate 7 and push the ride plate 7 downward against the pressure spring 8. A gap is created between the paper feed roller 3 and the copy paper.

同時に前記歯車21の時計方向の回転により歯車21と
一体の山車軸20の−ψ;111に固定さ7ttている
ラチェット歯車23は、このラチェツl−山車23と接
触しているラチェット爪25にはその回転は阻止されず
にラチェット爪25七摺接しながら時計方向に回転する
。次いで覆板12から手をはなすさ、今度は蓋板12は
その自重で下方へ戻る作用が働き歯車19は時計方向に
回転し、この山車19の時計方向の回転によって歯車2
1は反時計方向に回転し、この歯車21が反時計方向に
回転するさ、ラチェット歯車23も反時計方向に回転し
始める。このラチェット歯車23が反時計方向に回転し
始めるお、ラチェット歯車23はラチェット爪25と当
接しラチェット歯車23の反時計方向の回転は阻止され
る。その結果蓋板12を下方へ移動させる歯車の連動機
構は停止し蓋板12は任意の開放位置で停止した状態に
保持することかできる。
At the same time, due to the clockwise rotation of the gear 21, the ratchet gear 23, which is fixed to -ψ; Its rotation is not inhibited and rotates clockwise while slidingly touching the ratchet pawl 25. Next, when you release your hand from the cover plate 12, the cover plate 12 moves back downward under its own weight, causing the gear 19 to rotate clockwise, and this clockwise rotation of the float 19 causes the gear 2 to
1 rotates counterclockwise, and as this gear 21 rotates counterclockwise, the ratchet gear 23 also begins to rotate counterclockwise. When the ratchet gear 23 starts to rotate counterclockwise, the ratchet gear 23 comes into contact with the ratchet pawl 25, and the counterclockwise rotation of the ratchet gear 23 is prevented. As a result, the interlocking mechanism of gears that moves the cover plate 12 downward is stopped, and the cover plate 12 can be held stopped at any open position.

この状態において両手を使用して給紙カセット4内ζこ
複写用紙を補給する。補給し終った段階で手によりはね
26に抗してラチェット爪25を動かし、ラチェツ)・
爪25さラチェット歯車23との保合を解けば蓋板12
も押し下げ板16ももとの水平の位置に戻る。
In this state, use both hands to replenish copy paper in the paper feed cassette 4. After replenishing the supply, move the ratchet pawl 25 by hand against the splash 26 to release the ratchet).
If the pawl 25 is released from the ratchet gear 23, the cover plate 12 will be removed.
The push-down plate 16 also returns to its original horizontal position.

「本発明の効果」 本発明は以上のような構成であるので、給紙カセツ1−
を複写機に装填した状態で複写用紙を給紙カセットに補
給するこきができると吉もに、給紙カセットの蓋板は開
放途中の任意の開放位置において停止した状態に保持す
ることが可能となり、したかって蓋板を片手で支える必
要かなくなり両手か使用できる状態になり、両手で給紙
カセットζζ複写用紙を補給することができるので、複
写用紙の補給作業か簡単ζζ且つ適確に行うことができ
、その結果熟練を要することなく誰ても複写用紙を給紙
カセットに補給することができるという利点かある。
"Effects of the present invention" Since the present invention has the above configuration, the paper feed cassette 1-
If it is possible to replenish the paper cassette with copy paper while it is loaded in the copying machine, the cover plate of the paper cassette can be held stopped at any opening position during opening. Therefore, it is no longer necessary to support the cover plate with one hand, and both hands can be used, and it is possible to replenish the copy paper in the paper feed cassette with both hands, so replenishing the copy paper can be done easily and accurately. This has the advantage that anyone can replenish the paper feed cassette with copy paper without requiring any skill.

【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基づく複写機用給紙カセッ
トの平面図、第2図は給紙カセットの縦断面図、第3図
は操作時の状態を示す第2図き同様な縦断面図である。 2・・・・・給紙カセット挿入口、 ・ 11 ・・・・給紙カセット、 5・・・・・・底壁、 7・・・・・・乗載板、 8・・・・・押圧ばね、 】2・・・・・・蓋板、 15 、15’・・・・・・押し下げ腕、16・・・・
・・押し下げ板、 19.2]、22・・・・・・歯車、 23・・・・・・ラチェット歯車、 25・・・・・・ラチェット爪。
FIG. 1 is a plan view of a paper feed cassette for a copying machine according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the paper feed cassette, and FIG. 3 is similar to FIG. FIG. 2... Paper feed cassette insertion slot, 11... Paper feed cassette, 5... Bottom wall, 7... Mounting plate, 8... Pressing Spring, ]2...Lid plate, 15, 15'...Press down arm, 16...
...Pushing down plate, 19.2], 22... Gear, 23... Ratchet gear, 25... Ratchet pawl.

Claims (1)

【特許請求の範囲】[Claims] 基端縁部が給紙カセット4の底壁5により枢支され、先
端縁部が前記底壁5との間に介装された押圧ばね8によ
り常時上方へ偏倚力を付与されていることにより、前記
給紙カセット4内に複写用紙が装填された状態で前記給
紙カセット4が複写機本体1の給紙カセット挿入口2に
挿入された際には前記複写用紙の先端縁部を前記複写機
本体1側の給紙ローラ3へ向けて押圧する乗載板7と、
前記給紙カセット4の上部を覆うように先端縁側が前記
給紙カセット4に対して枢支された蓋板12と、後端縁
部が前記蓋板12の先端縁部に近接して前記給紙カセッ
ト4に対して枢支され、先端方向には前記給紙カセット
4内に収納された複写用紙と干渉しない位置において前
記乗載板7を下方へ押し下げるための押し下げ腕15、
15′か突出している押し下げ板16と、前記蓋板12
の後端縁側が上方へ揺動されるに従つて前記押し下げ板
16の押し下げ腕15、15′が前記押圧板7を下方へ
押し下げるように、前記蓋板12の枢支部と前記押し下
げ板16の枢支部とを連動させる連動歯車機構を構成す
る歯車群19、21、22と、これら歯車群19、21
、22のうちの任意の一つの歯車21と一体的に回転す
るラチエツト歯車23と、前記蓋板12を揺動可能な範
囲内の任意の開放位置において停止した状態に保持する
ことができるように前記ラチエツト歯車23と噛み合う
ラチエツト爪25とを備えた複写機用給紙カセット。
The proximal edge is pivotally supported by the bottom wall 5 of the paper feed cassette 4, and the distal edge is constantly biased upward by a pressure spring 8 interposed between the bottom wall 5 and the bottom wall 5. When the paper feed cassette 4 is inserted into the paper feed cassette insertion slot 2 of the copying machine main body 1 with copy paper loaded in the paper feed cassette 4, the leading edge of the copy paper is inserted into the copy paper. a mounting plate 7 that presses toward the paper feed roller 3 on the machine body 1 side;
A cover plate 12 whose front edge side is pivoted to the paper feed cassette 4 so as to cover the upper part of the paper feed cassette 4, and a rear edge of the cover plate 12 which is close to the front edge of the cover plate 12 and which is attached to the paper feed cassette 4. a push-down arm 15 that is pivotally supported with respect to the paper cassette 4 and that pushes down the loading plate 7 at a position that does not interfere with the copy sheets stored in the paper feed cassette 4 in the distal direction;
a push-down plate 16 protruding from 15', and the cover plate 12;
The pivot portion of the cover plate 12 and the push-down plate 16 are connected so that the push-down arms 15 and 15' of the push-down plate 16 push down the push plate 7 as the rear edge side is swung upward. Gear groups 19, 21, 22 that constitute an interlocking gear mechanism that interlocks the pivot parts, and these gear groups 19, 21.
, 22, the ratchet gear 23 rotates integrally with any one of the gears 21, and the cover plate 12 can be held stopped at any open position within a swingable range. A paper feed cassette for a copying machine, comprising a ratchet pawl 25 that meshes with the ratchet gear 23.
JP17699484A 1984-08-25 1984-08-25 Paper feeding cassette for copying machine Granted JPS6155031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17699484A JPS6155031A (en) 1984-08-25 1984-08-25 Paper feeding cassette for copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17699484A JPS6155031A (en) 1984-08-25 1984-08-25 Paper feeding cassette for copying machine

Publications (2)

Publication Number Publication Date
JPS6155031A true JPS6155031A (en) 1986-03-19
JPH0577571B2 JPH0577571B2 (en) 1993-10-27

Family

ID=16023322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17699484A Granted JPS6155031A (en) 1984-08-25 1984-08-25 Paper feeding cassette for copying machine

Country Status (1)

Country Link
JP (1) JPS6155031A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346197A (en) * 1991-07-05 1994-09-13 Asahi Kogaku Kogyo Kabushiki Kaisha Manual recording paper insertion mechanism
US5433428A (en) * 1992-10-06 1995-07-18 Mita Industrial Co., Ltd. Paper feeding device of an image forming apparatus
US5752696A (en) * 1994-10-28 1998-05-19 Canon Kabushiki Kaisha Tray for loading sheets in a sheet-processing apparatus having an elastic force maintaining a lid in an open position
US5988630A (en) * 1996-09-03 1999-11-23 Brother Kogyo Kabushiki Kaisha Sheet feeder having collar structure for improved feeding and printer therefor
EP1361186A2 (en) * 2002-05-10 2003-11-12 Samsung Electronics Co., Ltd. Paper supply apparatus for a printing apparatus
KR20060084928A (en) * 2005-01-21 2006-07-26 삼성전자주식회사 Paper feeding apparatus of image forming apparatus having manual feeding unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748541A (en) * 1980-09-08 1982-03-19 Ricoh Co Ltd Paper feeding cassette
JPS5874252U (en) * 1981-11-14 1983-05-19 株式会社リコー Paper cassette

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5748541A (en) * 1980-09-08 1982-03-19 Ricoh Co Ltd Paper feeding cassette
JPS5874252U (en) * 1981-11-14 1983-05-19 株式会社リコー Paper cassette

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5346197A (en) * 1991-07-05 1994-09-13 Asahi Kogaku Kogyo Kabushiki Kaisha Manual recording paper insertion mechanism
US5433428A (en) * 1992-10-06 1995-07-18 Mita Industrial Co., Ltd. Paper feeding device of an image forming apparatus
US5752696A (en) * 1994-10-28 1998-05-19 Canon Kabushiki Kaisha Tray for loading sheets in a sheet-processing apparatus having an elastic force maintaining a lid in an open position
US5988630A (en) * 1996-09-03 1999-11-23 Brother Kogyo Kabushiki Kaisha Sheet feeder having collar structure for improved feeding and printer therefor
EP1361186A2 (en) * 2002-05-10 2003-11-12 Samsung Electronics Co., Ltd. Paper supply apparatus for a printing apparatus
EP1361186A3 (en) * 2002-05-10 2004-05-26 Samsung Electronics Co., Ltd. Paper supply apparatus for a printing apparatus
US6953190B2 (en) 2002-05-10 2005-10-11 Samsung Electronics Co., Ltd. Paper cartridge for printing apparatus
KR20060084928A (en) * 2005-01-21 2006-07-26 삼성전자주식회사 Paper feeding apparatus of image forming apparatus having manual feeding unit

Also Published As

Publication number Publication date
JPH0577571B2 (en) 1993-10-27

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