JPS6236937B2 - - Google Patents
Info
- Publication number
- JPS6236937B2 JPS6236937B2 JP11076581A JP11076581A JPS6236937B2 JP S6236937 B2 JPS6236937 B2 JP S6236937B2 JP 11076581 A JP11076581 A JP 11076581A JP 11076581 A JP11076581 A JP 11076581A JP S6236937 B2 JPS6236937 B2 JP S6236937B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- movable cover
- pressing member
- tray
- pressing
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
- B65H1/06—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile for separation from bottom of pile
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handling Of Cut Paper (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は所定のサイズに裁断された用紙を給紙
トレーに積載し、ボトムフイード方式で一枚ずつ
給紙を行う用紙給送装置に係り、とくに給紙トレ
ー内に設けられていて用紙をフイードローラに圧
接させる押圧機構部に改良を施したことを特徴と
する用紙給送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 loads paper cut into a predetermined size on a paper feeding tray and feeds the paper one by one using a bottom feed method. In particular, the present invention relates to a paper feeding device characterized in that a pressing mechanism provided in a paper feeding tray for pressing the paper against a feed roller has been improved.
一定サイズに整えられた用紙を用いるプリンタ
あるいは複写機等の記録装置においては、用紙交
換の簡便さの点から、通常カセツトタイプの給紙
トレーを用いて用紙給送装置を構成させている。
このような用紙給送装置の用紙給送方式には、給
紙トレー内に積層された用紙を最上層の用紙から
順次給送させていくアツパーフイード方式と、最
下層の用紙から給送させていくボトムフイード方
式とがある。ボトムフイード方式の用紙給送装置
においては、給紙トレーに対する用紙の補給が容
易であると共に、先にセツトされている用紙から
給送されていくので古い用紙が給紙トレーに残る
ことがなく、これによるトラブルの発生が解消さ
れる利点がある。
In a recording device such as a printer or a copying machine that uses paper arranged in a fixed size, the paper feeding device is usually constructed using a cassette type paper feeding tray for ease of paper replacement.
Paper feeding methods of such paper feeding devices include an up-purfeed method in which the sheets stacked in the paper feed tray are fed sequentially from the top layer of paper, and a top feed method in which the sheets are fed from the bottom layer first. There is a bottom feed method. In a bottom-feed paper feeding device, it is easy to replenish the paper feed tray with paper, and since the paper that has been set first is fed first, old paper does not remain in the paper feed tray. This has the advantage of eliminating the trouble caused by
第1図は、従来のボトムフイード方式の用紙給
送装置の一例を示している。全体として符号1で
示す給紙トレー内には複数枚の用紙2が積層され
ており、装置本体に回転自在に装着されたフイー
ドローラ3の周面の一部は、トレー本体4に穿設
された穴4Aを貫通して最下位の用紙2Aに圧接
している。用紙2の先端部を覆つている固定カバ
ー5はトレー本体4に固設されていて、その下端
縁とトレー本体4とで給紙口6が形成されてお
り、用紙2の大半を覆う可動カバー7の基部はヒ
ンジ8によつて開閉自在に装着されている。可動
カバー7の自由端側にはラツチ機構9が配設され
ている。ラツチ機構9は、可動カバー7の自由端
に固設されたピン11を係止する係止部材12
と、引張りばね13およびストツパー14とから
なり、係止部材12を軸15の周りに回動させる
ことによつて可動カバー7のラツチまたは解除が
行われる。 FIG. 1 shows an example of a conventional bottom feed type paper feeding device. A plurality of sheets of paper 2 are stacked in a paper feed tray generally designated by reference numeral 1, and a portion of the circumferential surface of a feed roller 3 rotatably mounted on the main body of the apparatus is perforated in the main body 4 of the tray. It passes through the hole 4A and comes into pressure contact with the lowest paper 2A. A fixed cover 5 that covers the leading edge of the paper 2 is fixed to the tray body 4, and a paper feed port 6 is formed by the lower edge of the fixed cover 5 and the tray body 4, and a movable cover that covers most of the paper 2 The base of 7 is attached by a hinge 8 so as to be openable and closable. A latch mechanism 9 is provided on the free end side of the movable cover 7. The latch mechanism 9 includes a locking member 12 that locks a pin 11 fixed to the free end of the movable cover 7.
The movable cover 7 is latched or released by rotating the locking member 12 about a shaft 15.
可動カバー7の裏面側には押圧機構17が配設
されていて、これに含まれる押圧部材18の基部
は軸19に枢着されており、この軸19の各端部
は可動カバー7に固設された一対のブラケツト2
1に装着されている。押圧部材18は、軸19に
装着されたねじりばね22の弾力によつて矢印2
3方向の回動習性が与えられていて、その自由端
18Aは最上位の用紙2Bに圧接している。押圧
部材18の自由端18Aは、給紙トレー1を側方
から見てフイードローラ3の上方に位置してい
て、用紙2をフイードローラ3に圧接させてい
る。 A pressing mechanism 17 is disposed on the back side of the movable cover 7, and the base of a pressing member 18 included in this mechanism is pivotally attached to a shaft 19, and each end of this shaft 19 is fixed to the movable cover 7. A pair of brackets 2
It is installed on 1. The pressing member 18 is moved in the direction indicated by the arrow 2 by the elasticity of a torsion spring 22 attached to the shaft 19.
It is provided with a rotational behavior in three directions, and its free end 18A is pressed against the uppermost sheet 2B. The free end 18A of the pressing member 18 is located above the feed roller 3 when the paper feed tray 1 is viewed from the side, and presses the paper 2 against the feed roller 3.
このように構成された用紙給送装置において、
フイードローラ3を矢印25方向に間欠的に回動
させることによつて、最下位の用紙2Aは給紙口
6から矢印26方向に順次給送されていく。とこ
ろがこの装置では、給紙トレー1への用紙2を補
給するために、ラツチ機構9を解除して可動カバ
ー7を矢印27方向に回動して開放させようとす
ると、押圧部材18がねじりばね22の弾力によ
つて矢印23の方向に回動してしまう。従つてそ
の自由端18Aに押圧されている最上位の用紙2
Bを矢印28方向(用紙2の給送方向26と反対
の方向)へ移動させてしまい、積層された用紙2
の配置状態を乱すという欠点があつた。また逆
に、可動カバー7を閉鎖するときには、押圧部材
18はねじりばね22の弛緩する向きに回動した
位置にあるので、その自由端18Aが用紙2に突
き当つて可動カバー7を閉鎖できないという欠点
もあつた。このような状態では、外部からの手操
作によつて押圧部材18を矢印23と反対の向き
に予じめ回動復帰させておいて可動カバー7を閉
じねばならず甚だ面倒であつた。
In the paper feeding device configured in this way,
By intermittently rotating the feed roller 3 in the direction of arrow 25, the lowest sheets 2A are sequentially fed from the paper feed port 6 in the direction of arrow 26. However, in this device, when an attempt is made to release the latch mechanism 9 and rotate the movable cover 7 in the direction of the arrow 27 in order to replenish the paper 2 to the paper feed tray 1, the pressing member 18 is torsioned by the spring. Due to the elasticity of 22, it rotates in the direction of arrow 23. The top sheet 2 is therefore pressed against its free end 18A.
B was moved in the direction of arrow 28 (the direction opposite to the feeding direction 26 of paper 2), and the stacked paper 2
The problem was that it disturbed the arrangement of the objects. Conversely, when closing the movable cover 7, the pressing member 18 is in a position rotated in the direction in which the torsion spring 22 is relaxed, so its free end 18A hits the paper 2 and the movable cover 7 cannot be closed. There were also drawbacks. In such a state, the pressing member 18 had to be previously rotated back in the direction opposite to the arrow 23 by an external manual operation and the movable cover 7 had to be closed, which was extremely troublesome.
本発明の目的は可動カバーの開閉時において、
用紙に対する押圧部材の圧接、離隔作用が円滑に
行い得るようにした用紙給送装置を提供すること
にある。
The purpose of the present invention is to: When opening and closing a movable cover,
It is an object of the present invention to provide a paper feeding device that allows a pressing member to press and separate the paper smoothly.
本発明の用紙給送装置においては、押圧部材お
よび可動カバー間に比較的弾力の弱い復帰用ばね
を配設して、可動カバーの開放時においては押圧
部材を可動カバーの裏面側に近づいておき、また
トレー本体に対しては、上記復帰用ばねに抗し得
る弾力の強い押圧ばねを作動ピンに作用させ、こ
の作動ピンで押圧部材を回動させることによつ
て、用紙に所要の圧接力を作用させ、前記した目
的を達成している。
In the paper feeding device of the present invention, a relatively weak return spring is disposed between the pressing member and the movable cover, and the pressing member is kept close to the back side of the movable cover when the movable cover is opened. In addition, for the tray body, a pressure spring with a strong elasticity capable of resisting the above-mentioned return spring is applied to an operating pin, and by rotating a pressing member with this operating pin, a required pressure is applied to the paper. The above-mentioned purpose has been achieved.
以下図示の一実施例によつて本発明を詳細に説
明する。
The present invention will be explained in detail below with reference to an embodiment shown in the drawings.
第1図に示す構成部品と同一機能を果す部品に
は同一の符号を付した第2図および第3図におい
て、押圧部材41は、その湾曲した基部の一部を
反対側に湾曲させて形成されるボス部41Bを軸
19に嵌合させることによつて回動自在に支持さ
れている。押圧部材41は可動カバー7との間に
各端部がそれぞれ係止された比較的弾力の弱い緊
縮性の復帰用ばね42の弾力によつて、矢印23
と反対方向、すなわち可動カバー7の裏面側に近
接する向きの回動習性が与えられている。 In FIGS. 2 and 3, parts having the same functions as those shown in FIG. 1 are given the same reference numerals. In FIGS. The boss portion 41B is fitted onto the shaft 19 to be rotatably supported. The pressing member 41 is moved by the arrow 23 due to the elasticity of a return spring 42 which has a relatively weak elasticity and whose ends are respectively locked between the movable cover 7 and the movable cover 7.
The rotational behavior is given in the opposite direction, that is, in the direction approaching the back side of the movable cover 7.
トレー本体4の上面左右部には、第3図に示す
ように用紙2の幅を整える一対の側板43,44
が平行に固設されていて、さらにその外側には一
対のピンハウジング45,46がそれぞれ固設さ
れている。第2図において、ピンハウジング45
およびフレーム本体4に穿設されたガイド穴4
7,48には、フランジ49Aを有する作動ピン
49が上下動自在に装着されている。作動ピン4
9は、フランジ49Aとフレーム本体4に各端部
を圧接している伸張性の押圧ばね51の弾力によ
つて上昇する習性が与えられており、他方のピン
ハウジング46内の作動ピン52も作動ピン49
と同様に構成されている。 On the left and right sides of the upper surface of the tray body 4, there are a pair of side plates 43, 44 that adjust the width of the paper 2, as shown in FIG.
are fixedly installed in parallel, and furthermore, a pair of pin housings 45 and 46 are respectively fixedly installed on the outside thereof. In FIG. 2, the pin housing 45
and a guide hole 4 drilled in the frame body 4
7 and 48, an operating pin 49 having a flange 49A is mounted so as to be vertically movable. Actuation pin 4
9 is given the habit of rising by the elasticity of an extensible pressing spring 51 whose ends are pressed against the flange 49A and the frame body 4, and the actuating pin 52 in the other pin housing 46 is also actuated. pin 49
It is configured in the same way.
可動カバー7が第2図に示すように閉じた状態
では、作動ピン49,52の上端部は押圧部材4
1の短腕41Cの裏面部に圧接しており、押圧部
材41に矢印23方向への回動習性を与えてい
る。押圧ばね51の弾力は、復帰用ばね42のそ
れよりも比較的大きなものに設定されていて復帰
用ばね42に充分抗し得る力で押圧部材41に作
用している。押圧部材41に与えられた回動力に
よつて、その自由端41Bは最上位の用紙2Bを
押圧し最下位の用紙2Aをフイードローラ3の周
面に圧接させている。この圧接作用が行われる間
は、作動ピン49のフランジ49Aとピンハウジ
ング45の上部裏面との間には適宜の間隙が常時
形成されている。 When the movable cover 7 is closed as shown in FIG.
It is in pressure contact with the back surface of the short arm 41C of No. 1, giving the pressing member 41 the ability to rotate in the direction of arrow 23. The elasticity of the pressing spring 51 is set to be relatively larger than that of the return spring 42, and acts on the pressing member 41 with a force sufficient to resist the return spring 42. Due to the rotational force applied to the pressing member 41, its free end 41B presses the uppermost sheet 2B and presses the lowermost sheet 2A against the peripheral surface of the feed roller 3. While this press-contact action is being performed, an appropriate gap is always formed between the flange 49A of the operating pin 49 and the upper rear surface of the pin housing 45.
給紙トレー1内の用紙2が減少してこれに補給
を行う場合、ラツチ機構9を解除したのち可動カ
バー7が矢印27方向に回動されて開放される。
可動カバー7の開放時において、押圧部材41の
短腕41Cは作動ピン49,52から直ちに離隔
する。従つて押圧部材41に対する押圧ばね51
の回動作用は無くなり、押圧部材41を復帰用ば
ね42の弾力で可動カバー7の方へ退避させるこ
とができる。このため最上位の用紙2Bが押圧部
材41の自由端41Aによつて給紙方向と反対の
方向(矢印28方向)へ動かされる不都合が無く
なる。また可動カバー7を閉じるときには、押圧
部材41の自由端41Aは可動カバー7側に退避
しているので、これが用紙2に突き当る現象は解
消され、可動カバー7の閉鎖作用を円滑に行うこ
とができる。 When the number of sheets of paper 2 in the paper feed tray 1 decreases and it is to be replenished, the latch mechanism 9 is released and the movable cover 7 is rotated in the direction of arrow 27 to be opened.
When the movable cover 7 is opened, the short arm 41C of the pressing member 41 immediately separates from the operating pins 49, 52. Therefore, the pressing spring 51 against the pressing member 41
The rotational action of is eliminated, and the pressing member 41 can be retracted toward the movable cover 7 by the elasticity of the return spring 42. This eliminates the inconvenience of the uppermost sheet 2B being moved by the free end 41A of the pressing member 41 in the direction opposite to the sheet feeding direction (in the direction of arrow 28). Furthermore, when the movable cover 7 is closed, the free end 41A of the pressing member 41 is retracted to the movable cover 7 side, so the phenomenon of the free end 41A hitting the paper 2 is eliminated, and the movable cover 7 can be smoothly closed. can.
以上述べたように本発明によれば、押圧部材と
可動カバー間に復帰用ばねを配設し、同ばねに抗
し得る力で押圧部材を回動させる作動ピンをフレ
ーム本体に設けることによつて、可動カバーの開
閉時において、従来の装置に生じていた押圧部材
による最上位の用紙の位置乱れ、および押圧部材
と用紙との衝合による可動カバーの閉鎖不能等が
解消され、押圧部材に対する手操作を施すことな
く可動カバーの開閉が正常に行われて給紙トレー
に対する用紙補給を容易に行うことができる。
As described above, according to the present invention, a return spring is disposed between the pressing member and the movable cover, and an operating pin is provided in the frame body to rotate the pressing member with a force capable of resisting the spring. Therefore, when opening and closing the movable cover, problems such as the dislocation of the uppermost sheet of paper caused by the pressing member and the inability to close the movable cover due to collision between the pressing member and the paper, which occurred in conventional devices, are eliminated. The movable cover can be opened and closed normally without any manual operation, and the paper feed tray can be easily replenished with paper.
第1図は従来の用紙給送装置の一例を示す側面
図、第2図は本発明の一実施例を示す用紙給紙装
置の側面図、第3図は同上装置の要部を示す斜視
図である。
1……給紙トレー、2……用紙、3……フイー
ドローラ、4……トレー本体、5……固定カバ
ー、7……可動カバー、18,41……押圧部
材、45,46……ピンハウジング、49,52
……作動ピン、42……復帰用ばね、51……押
圧ばね。
FIG. 1 is a side view showing an example of a conventional paper feeding device, FIG. 2 is a side view of a paper feeding device showing an embodiment of the present invention, and FIG. 3 is a perspective view showing essential parts of the same device. It is. 1... Paper feed tray, 2... Paper, 3... Feed roller, 4... Tray body, 5... Fixed cover, 7... Movable cover, 18, 41... Pressing member, 45, 46... Pin housing ,49,52
... Operating pin, 42 ... Return spring, 51 ... Pressing spring.
Claims (1)
に積載されていて、周面の一部がトレー本体4を
貫通して最下位の用紙2Aに圧接しているフイー
ドローラ3の間欠回転により給紙を行うボトムフ
イード方式の用紙給送装置において、 用紙2の先端部を覆う固定カバー5に基部を枢
着されていて、用紙2の大半を覆つている開閉自
在の可動カバー7と、 可動カバー7の裏面側に可動自在に配設されて
いて、自由端41Aの押圧部が最上位の用紙2B
に圧接して用紙2をフイードローラ3に押圧させ
る押圧部材41と、 前記可動カバー7の開放時において、押圧部材
41を用紙2から離隔するように可動カバー7に
近接させる向きの回動習性を与える復帰用ばね4
2と、 トレー本体4に固設されたピンハウジング4
5,46に上下動自在に装着されていて、可動カ
バー7の閉塞時において、上記復帰用ばね42に
抗し得る押圧ばね51の強い弾力によつて前記押
圧部材41を回動されて用紙2を押圧させる作動
ピン49,52、 とにより給紙トレー1を構成させたことを特徴と
する用紙給送装置。[Claims] 1. A plurality of sheets 2 of a certain size are placed in a paper feed tray 1.
In a bottom feed type paper feeding device that feeds paper by intermittent rotation of a feed roller 3 which is loaded on a tray and whose peripheral surface partially penetrates the tray body 4 and is in pressure contact with the lowest paper 2A, A movable cover 7 that can be opened and closed freely covers most of the paper 2, and a movable cover 7 that is movably disposed on the back side of the movable cover 7. Paper 2B with the pressing part at the end 41A at the top
a pressing member 41 that presses the paper 2 against the feed roller 3 by contact with the feed roller 3; and a rotational behavior that allows the pressing member 41 to move closer to the movable cover 7 and away from the paper 2 when the movable cover 7 is opened. Return spring 4
2 and a pin housing 4 fixed to the tray body 4
When the movable cover 7 is closed, the pressing member 41 is rotated by the strong elasticity of the pressing spring 51 that can resist the return spring 42, and the sheet 2 is A paper feeding device characterized in that a paper feeding tray 1 is constituted by actuating pins 49 and 52 for pressing the paper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11076581A JPS5817032A (en) | 1981-07-17 | 1981-07-17 | Paper feeder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11076581A JPS5817032A (en) | 1981-07-17 | 1981-07-17 | Paper feeder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5817032A JPS5817032A (en) | 1983-02-01 |
JPS6236937B2 true JPS6236937B2 (en) | 1987-08-10 |
Family
ID=14544001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11076581A Granted JPS5817032A (en) | 1981-07-17 | 1981-07-17 | Paper feeder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5817032A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0749336B2 (en) * | 1986-07-18 | 1995-05-31 | 日立電子エンジニアリング株式会社 | Paper handling equipment |
JP3285973B2 (en) * | 1992-12-03 | 2002-05-27 | 株式会社リコー | Paper feeder |
CN106081674B (en) * | 2016-08-12 | 2018-10-26 | 深圳市凯仕泰科智能有限公司 | A kind of paper laminated device |
-
1981
- 1981-07-17 JP JP11076581A patent/JPS5817032A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5817032A (en) | 1983-02-01 |
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