JPS5926835A - Sheet feeder - Google Patents
Sheet feederInfo
- Publication number
- JPS5926835A JPS5926835A JP57136377A JP13637782A JPS5926835A JP S5926835 A JPS5926835 A JP S5926835A JP 57136377 A JP57136377 A JP 57136377A JP 13637782 A JP13637782 A JP 13637782A JP S5926835 A JPS5926835 A JP S5926835A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- elastic member
- sheet
- end surface
- retaining part
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/52—Friction retainers acting on under or rear side of article being separated
- B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
- B65H3/523—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned over articles separated from the bottom of the pile
- B65H3/5238—Retainers of the pad-type, e.g. friction pads
-
- 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
- B65H1/08—Supports 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
- B65H1/12—Supports 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/20—Avoiding or preventing undesirable effects
- B65H2601/25—Damages to handled material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は官製ハガキ、図書カード等の極厚手ソートの給
送に使用する複写機の用紙給送装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device for a copying machine used for feeding extremely thick sorts of government postcards, book cards, and the like.
従来の複写機の用紙給送装置においては、第１図に示す
ように給紙カセットαの前端の両側部に揺動自在に設け
たコーナー爪ｋを利用して用紙を給送していた。In the conventional paper feeding device of a copying machine, as shown in FIG. 1, the paper is fed using corner claws k swingably provided on both sides of the front end of the paper feeding cassette α.
しかしながら、官製はがきや図書カート°等の極厚手の
用紙の場合、コーナー爪すを利用して用紙を座屈させ、
最上位の用紙のみ剥離して送シ出すには大きな送り出し
力が必要となり現実にコーナー爪すの利用は困難であっ
た。However, in the case of extremely thick paper such as official postcards and book carts, the paper is buckled using a corner claw.
In order to separate and feed only the topmost sheet of paper, a large feeding force is required, making it difficult to actually use corner claws.
また、その他従来の給紙方法としてサイト°ノクツド方
式にエリ給送を制御する方法があった力（、これは用紙
のエツジ部との摩擦にエリ長期使用に対しサイドバンド
が摩耗を生じ信頼性に乏しいという欠点があった。In addition, as for other conventional paper feeding methods, there was a method of controlling edge feeding using the site-notched method. It had the disadvantage of being lacking in
以上の他に、リタントロール方式やリタント。In addition to the above, there is also a return roll method and a return.
ベルト方式による用紙給送法もあるが、これらは小型複
写機に対してはコストが高くなる欠点があった。There are paper feeding methods using a belt system, but these methods have the disadvantage of being expensive for small-sized copying machines.
本発明は上記の事情に鑑みなされたものであって、その
目的とするところは官製はがき、図書カード等の極厚手
の複写用紙を傷つけることなく確実に一枚づつ送り出す
ことが司能な用紙給送装置を提供することにある。The present invention was made in view of the above circumstances, and its purpose is to provide a paper feeder capable of reliably feeding extremely thick copy paper such as official postcards and library cards one by one without damaging them. The objective is to provide a transmission device.
以下、本発明を第２図以下を参照して説明する。Hereinafter, the present invention will be explained with reference to FIG. 2 and subsequent figures.
図面中７は搬送ロールであり、搬送ロール７ｔｉ複写機
本体側に属し、駆動シャフト８に固定され駆動されるも
のである。Reference numeral 7 in the drawing indicates a conveyance roll, which belongs to the main body of the copying machine and is fixed to and driven by the drive shaft 8.
Ａは給紙力セントであり、給紙カセットＡはカセット本
体９を備えている。A is a paper feeding power cent, and the paper feeding cassette A is provided with a cassette main body 9.
カセット本体９内には底板５が上下動可能に設けてあり
、この底板５とカセット本体９の底部との間にばね６が
介装してあり、ばね６は底板５上に載置された複写用紙
１を搬送ロール７に適度の圧力で押しつけている。A bottom plate 5 is provided in the cassette body 9 so as to be movable up and down, and a spring 6 is interposed between the bottom plate 5 and the bottom of the cassette body 9, and the spring 6 is placed on the bottom plate 5. The copy paper 1 is pressed against the transport roll 7 with appropriate pressure.
カセット本体９の内側面には保持腕２の基端部がシャフ
ト３により取付けてあって、保持腕２はシャフト３を支
点に上下動が可能になっている。The base end of the holding arm 2 is attached to the inner surface of the cassette body 9 by a shaft 3, and the holding arm 2 can move up and down using the shaft 3 as a fulcrum.
保持腕２の先端部には水平方向に用紙押え部２ａが設け
てあり、また保持腕２の先端部には弾性部材取付部２ｂ
が設けてあって、この弾性部材取付部２ｈには弾性部材
４を圧入することで取付けである。A paper holding part 2a is provided in the horizontal direction at the tip of the holding arm 2, and an elastic member attachment part 2b is provided at the tip of the holding arm 2.
is provided, and the elastic member 4 is attached by press-fitting into this elastic member attaching portion 2h.
つまり、用紙押え部２αは保持腕２の上端面２′と連続
して内向に折曲して先端面グまで延びている薄肉板状体
となり弾性部材取付部２６は保持腕２の先端面ｌと連続
して内向に折曲した薄肉板状体となっていると共に、弾
性部材４は弾性部材取付部２ｂが圧入する種付孔４αと
上端側空洞部４ｈとを有しかつ上端面４Ｃｎ円弧状に彎
曲し、取付孔４αを弾性部材取付部２ｂに圧入して取付
けられ、上端面４Ｃが用紙押え部２αの下面に圧接して
代かに変形していると共に、弾性部材４はウレタンゴム
等の複写用紙１に対して高い摩擦係数をもつ材質、ある
いは弾性撓みを生じる材質とすれば良い。In other words, the paper holding part 2α is a thin plate-like body that is continuous with the upper end surface 2' of the holding arm 2, bent inward, and extends to the tip end surface l. The elastic member 4 has a seeding hole 4α into which the elastic member mounting portion 2b is press-fitted, and an upper end cavity 4h, and has an upper end surface 4Cn circular shape. It is curved in an arc shape and is attached by press-fitting the attachment hole 4α into the elastic member attachment portion 2b, and the upper end surface 4C is pressed against the lower surface of the paper holding portion 2α and is instead deformed, and the elastic member 4 is made of urethane rubber. It may be made of a material that has a high coefficient of friction against the copy paper 1, such as, or a material that causes elastic deflection.
前記用紙押え部２αが保持腕２の自重で堆積された用紙
１上にセントされた状態では弾性部月４は複写用紙１の
先端に対向している。When the paper holding portion 2α is centered on the stacked paper 1 by the weight of the holding arm 2, the elastic portion 4 faces the leading edge of the copy paper 1.
また、底板５と保持腕２との間にはカセット本体９と一
体にして仕切板１０が設けてあり、仕切板１０によって
複写用紙１は側面のセント位Ｆｔが固定される。Further, a partition plate 10 is provided between the bottom plate 5 and the holding arm 2 integrally with the cassette main body 9, and the copy paper 1 is fixed at the center position Ft on the side surface by the partition plate 10.
しかして、複写開始ボタンが押されると、搬送ロール７
は回転を始め最上位の複写用紙１が搬送され弾性部材４
に当たるが、複写用紙１の給送力と複写用紙Ｉのもつ腰
の強さにＬり弾性部材４はたわみ弾性部材４の上端面４
Ｃと用紙押え部２αとの間に隙間が生じる。そしてこの
隙間が用紙一枚が通過するのに必要なだけの大きさに達
するとこの隙間から複写用紙１は送り出される。When the copy start button is pressed, the transport roll 7
begins to rotate, and the uppermost copy sheet 1 is conveyed to the elastic member 4.
However, due to the feeding force of the copy paper 1 and the stiffness of the copy paper I, the elastic member 4 flexes and the upper end surface 4 of the elastic member 4 is bent.
A gap is created between C and the paper holding portion 2α. When this gap reaches a size necessary for one sheet to pass through, the copy paper 1 is sent out from this gap.
このとき、もし最上位から２枚目以降の複写用紙１が同
時に給送された場合、２枚目以降の複写用紙］は弾性部
材４に当たり弾性部材４と用紙１間の摩擦抵抗により停
止させられ重送されてカセット外・＼出て行くことはな
い。At this time, if the second and subsequent copy sheets 1 from the top are fed at the same time, the second and subsequent copy sheets will hit the elastic member 4 and be stopped by the frictional resistance between the elastic member 4 and the paper 1. It will not be double fed and go out of the cassette.
！！念、弾性部材４の上端面４Ｃが用紙押え部２ａに圧
接しているので、複写用紙１の厚さが不揃いであっても
確実に重送を防止できる。! ! Note that since the upper end surface 4C of the elastic member 4 is in pressure contact with the paper pressing portion 2a, double feeding can be reliably prevented even if the thickness of the copy paper 1 is uneven.
また、実施例によれば弾性部材４は上端側空洞部４ｂｆ
有しかつ上端面４Ｃが円弧状に彎曲しているので、部品
取付時の寸法のノくラソキに対し弾性部材４の用紙押え
部２αに加わる接触圧力の変動金小さくでき當に最適な
る接触圧力で上端面４Ｃを用紙押え部２ａに圧接できる
と共に、上端面４Ｃの接触面積を広くして用紙さばき効
果を向上できるから、重送を確実に防止できる。Further, according to the embodiment, the elastic member 4 has an upper end side cavity 4bf.
Since the upper end surface 4C is curved in an arc shape, the variation in the contact pressure applied to the paper holding part 2α of the elastic member 4 can be reduced even if the dimensions are not adjusted when the parts are attached, and the contact pressure is optimal. The upper end surface 4C can be brought into pressure contact with the paper holding part 2a, and the contact area of the upper end surface 4C can be increased to improve the paper sorting effect, so double feeding can be reliably prevented.
なお、弾性部材４は第６図に示すように先端にいくに従
って順次薄くなる三角形断面形状としても良いと共に、
弾性部材４は弾性部材取付部２ｂに第７図、第８図に示
すようにネジ固着１接着剤による接着固着しても艮い。The elastic member 4 may have a triangular cross-sectional shape that becomes thinner toward the tip as shown in FIG.
The elastic member 4 may be fixed to the elastic member mounting portion 2b by adhesively fixing it with a screw 1 adhesive as shown in FIGS. 7 and 8.
本発明に係る用紙給送装置における給紙カセットには従
来一般の複写機に使用することが可能である。The paper feeding cassette in the paper feeding device according to the present invention can be used in conventional general copying machines.
また、従来のコーナー爪を有する給紙力セントにおいて
コーナー爪を取り外し、新規保持腕２を取付けることが
可能であり、この場合、カセット本体や底板などは従来
品と共通となることで大幅なコストダウンが可能である
。In addition, it is possible to remove the corner claws and install a new holding arm 2 on a conventional paper feed center with corner claws, and in this case, the cassette body and bottom plate are the same as the conventional product, resulting in a significant cost reduction. Down is possible.
本発明は以上詳述したようになるから、官製はがき、図
書カード等の極厚子の複写用紙を傷つけることなく確実
に一枚づつ送り出すことが可能になる。Since the present invention has been described in detail above, it is possible to reliably feed extra-thick copy sheets such as official postcards and library cards one by one without damaging them.
また、弾性部材４は上端面４Ｃが用紙押え部２σに圧接
しているから、厚さの異なる複写用紙でも重送すること
なく確実に一枚づつ送り出すことができる。Further, since the upper end surface 4C of the elastic member 4 is in pressure contact with the paper presser portion 2σ, copy sheets of different thicknesses can be reliably fed out one by one without double feeding.
第１図は従来の用紙給送装置の一部分の斜視図、第２図
は本発明一実施例の縦断面図、第３図は同平面図、第４
図は同一部省略した斜視図、第５図は本発明に係る用紙
給送装置の用紙給送状態の説明図、第６図は弾性部材の
他の実施例を示す側面図、第７図、第８図はそれぞれ異
なる弾性部相の取付状態を示す側面図である。
１は複写用紙、２は保持腕、２αは用紙押え部、４は弾
性部材、４Ｃは上端面、７は搬送ロール。FIG. 1 is a perspective view of a part of a conventional paper feeding device, FIG. 2 is a vertical sectional view of an embodiment of the present invention, FIG. 3 is a plan view of the same, and FIG.
The figures are perspective views with the same parts omitted, FIG. 5 is an explanatory diagram of the paper feeding state of the paper feeding device according to the present invention, FIG. 6 is a side view showing another embodiment of the elastic member, and FIG. FIG. 8 is a side view showing how different elastic parts are attached. 1 is a copy paper, 2 is a holding arm, 2α is a paper presser, 4 is an elastic member, 4C is an upper end surface, and 7 is a transport roll.
Claims (1)
設け、保持腕２の先端部に用紙押え部”ｌａｆ設け、保
持腕２の先端部に、搬送ロール７の回転によって送り出
された複写用紙１の衝突により弾性変形して用紙押え部
２ａとの間に一枚の複写用紙１が通過し得る間隙を形成
する弾性部材４を設け、該弾性部材４の上端面４０を用
紙押え部２ａに圧接したこと全特徴とする用紙給送装置
。A holding arm 2 is provided on both sides of the inside of the cassette body 9 so as to be able to swing up and down, a paper holding portion "laf" is provided at the tip of the holding arm 2, and a copy sent out by the rotation of the transport roll 7 is provided at the tip of the holding arm 2. An elastic member 4 is provided which is elastically deformed by the collision of the paper 1 and forms a gap between itself and the paper presser 2a through which a sheet of copy paper 1 can pass. The paper feeding device is characterized by being pressed into contact with the paper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57136377A JPS5926835A (en) | 1982-08-06 | 1982-08-06 | Sheet feeder |
| US06/521,508 US4623138A (en) | 1982-08-06 | 1983-08-08 | Paper feeding device for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57136377A JPS5926835A (en) | 1982-08-06 | 1982-08-06 | Sheet feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5926835A true JPS5926835A (en) | 1984-02-13 |
Family
ID=15173732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57136377A Pending JPS5926835A (en) | 1982-08-06 | 1982-08-06 | Sheet feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926835A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01261131A (en) * | 1987-05-18 | 1989-10-18 | Seiko Epson Corp | Sheet separating mechanism for sheet feeder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831830A (en) * | 1981-08-17 | 1983-02-24 | Mita Ind Co Ltd | Paper feeding cassette for copying machine |
-
1982
- 1982-08-06 JP JP57136377A patent/JPS5926835A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831830A (en) * | 1981-08-17 | 1983-02-24 | Mita Ind Co Ltd | Paper feeding cassette for copying machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01261131A (en) * | 1987-05-18 | 1989-10-18 | Seiko Epson Corp | Sheet separating mechanism for sheet feeder |
| JP2592291B2 (en) * | 1987-05-18 | 1997-03-19 | セイコーエプソン株式会社 | Paper separation mechanism in paper feeder |
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