JPH0259092B2 - - Google Patents
Info
- Publication number
- JPH0259092B2 JPH0259092B2 JP57140056A JP14005682A JPH0259092B2 JP H0259092 B2 JPH0259092 B2 JP H0259092B2 JP 57140056 A JP57140056 A JP 57140056A JP 14005682 A JP14005682 A JP 14005682A JP H0259092 B2 JPH0259092 B2 JP H0259092B2
- Authority
- JP
- Japan
- Prior art keywords
- feeding
- roller
- friction material
- friction
- sheet material
- 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 - Lifetime
Links
- 239000002783 friction material Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 38
- 238000000926 separation method Methods 0.000 description 23
- 229920001971 elastomer Polymers 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 229920006015 heat resistant resin Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 phenolic resin Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 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
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
- B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【発明の詳細な説明】
本発明は、フアクシミリ装置や複写機等の画像
記録機に用いられるシート材自動給送装置に関す
るものである。更に詳しくは、積載した複数枚の
シート材を順次自動的に送り出すためのシート材
自動給送装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic sheet material feeding device used in an image recording machine such as a facsimile machine or a copying machine. More specifically, the present invention relates to an automatic sheet material feeding device for automatically feeding out a plurality of stacked sheets in sequence.
以下、フアクシミリ装置に用いられるシート材
自動給送装置を例にあげて説明する。 Hereinafter, a sheet material automatic feeding device used in a facsimile machine will be described as an example.
近時、シート材自動給送装置として、摩擦部材
とそれに対向する摩擦ローラが協働してシート材
を分離する給送装置が考えられている。この摩擦
ローラ（原稿を読取部に給送する方向に回転する
ので、以下給送ローラと称す）と、それに圧接す
る摩擦材（以下摩擦材と称す）とによる給送方式
は安価な給送方式として広く用いられている。し
かし、シート材を摩擦ローラと摩擦材との間に案
内するガイド部材を装置本体に固定して設ける
と、多数枚のシート材が送られてきた場合、シー
ト材がガイド部材によつて挟まれ、給送不良やジ
ヤムを起こすことがあつた。 BACKGROUND ART Recently, as an automatic sheet material feeding device, a feeding device in which a friction member and a friction roller facing the friction member cooperate to separate sheet materials has been considered. This feeding system using a friction roller (hereinafter referred to as the feeding roller as it rotates in the direction of feeding the original to the reading section) and a friction material (hereinafter referred to as the friction material) that presses against it is an inexpensive feeding method. It is widely used as However, if a guide member that guides the sheet material between the friction roller and the friction material is fixed to the main body of the device, when a large number of sheet materials are fed, the sheet material may be pinched by the guide member. , feeding problems or jams could occur.
さらに、従来の摩擦材は第１図に示すように、
片面を研磨した板状のゴム板５を裏面から金属板
のような硬い板材６で押え、さらに圧接バネ８で
給送ローラ２にゴム板５の研磨面が圧接するよう
に構成されている。なお１は原稿台、３，４は分
離された原稿を図示しない読取部等に導くガイド
板である。このような構成の自動給送装置では、
原稿が摩擦材と給送ローラが接触して分離動作す
る部分（以下分離点と呼ぶ）に入るときに、その
先端がゴム板５によつて案内される。このことは
原稿が摩擦材（ここではゴム板５）によつて抵抗
を受け、分離点に入りにくくなる傾向がある。す
なわち、重送を防ぐためにゴム板５の摩擦力を大
きくすると、原稿が分離点に入りにくくなるとい
う欠点が生ずる。これを解決するために、プラス
チツクシートのように摩擦が小さいシート材９を
分離点の近傍まで配置しているが、部品点数が増
えることと、シート材９の長さによつて分離性能
に大きく影響することから、部品精度及び組立精
度を高める必要が生じてくる。 Furthermore, conventional friction materials, as shown in Figure 1,
A plate-shaped rubber plate 5 polished on one side is held down by a hard plate material 6 such as a metal plate from the back side, and the polished surface of the rubber plate 5 is pressed against the feeding roller 2 by a pressure spring 8. Note that 1 is a document table, and 3 and 4 are guide plates for guiding separated documents to a reading section (not shown). In an automatic feeding device with such a configuration,
When the document enters the part where the friction material and the feeding roller come into contact and perform a separation operation (hereinafter referred to as a separation point), the leading end of the document is guided by the rubber plate 5. This tends to make it difficult for the document to enter the separation point because it is resisted by the friction material (here, the rubber plate 5). That is, if the frictional force of the rubber plate 5 is increased in order to prevent double feeding, a disadvantage arises in that it becomes difficult for the original to enter the separation point. To solve this problem, a sheet material 9 with low friction, such as a plastic sheet, is arranged close to the separation point, but this increases the number of parts and the length of the sheet material 9, which greatly affects the separation performance. As a result, it becomes necessary to improve component precision and assembly precision.
そこで、本発明は上述した従来例の欠点を解消
するために成されたものである。 Therefore, the present invention has been made in order to eliminate the drawbacks of the above-mentioned conventional example.
本発明の目的は部品点数が少なく、シー材先端
を確実に摩擦材と給送ローラとの間に案内し、給
送不良やジヤムを防止することの出来るシート材
自動給送装置を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic sheet material feeding device that has a small number of parts, can reliably guide the tip of the sheet material between the friction material and the feeding roller, and can prevent feeding defects and jams. It is in.
上記目的を達成することのできる本発明の構成
は、シート材を給送する給送ローラと、前記給送
ローラに近接または接触する摩擦材との協働によ
り複数枚のシート材から順次一枚ずつシート材を
送り出すシート材自動給送装置において、
揺動自在に支持され、前記摩擦材の前記給送ロ
ーラと反対側の面に密着する密着面を有し、前記
摩擦材を前記給送ローラより離間可能に保持する
剛性を有する保持部材と、
前記摩擦材を前記給送ローラに前記密着面を介
して押圧するために前記保持部材を付勢する付勢
手段を有し、
送られてくるシート材の先端を前記給送ローラ
と前記摩擦材との間に案内する案内面を前記保持
部材に一体的に形成したことを特徴とするシート
材自動給送装置である。 The configuration of the present invention that can achieve the above object is such that a feed roller that feeds the sheet material and a friction material that is close to or in contact with the feed roller cooperate to sequentially select one sheet from a plurality of sheets. In an automatic sheet material feeding device that feeds out sheet materials one by one, the sheet material is swingably supported and has a close contact surface that is in close contact with a surface of the friction material opposite to the feed roller, and the friction material is moved between the feed roller and the friction material. a holding member having rigidity for holding the friction material so as to be separated from each other; and a biasing means for urging the holding member to press the friction material against the feeding roller via the contact surface. The automatic sheet material feeding device is characterized in that a guide surface for guiding the leading end of the sheet material between the feeding roller and the friction material is integrally formed on the holding member.
以下、図面を用いて本発明の一実施例を適用し
たシート材自動給送装置について説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic sheet material feeding apparatus to which an embodiment of the present invention is applied will be described below with reference to the drawings.
第２図は本発明の一実施例による自動給送装置
を用いたフアクシミリ装置の読取部を模式的に示
した断面図である。また第３図は分離搬送部の斜
視図である。図において、１１は原稿積載台１２
に積載した複数枚の原稿群である。この原稿群１
１は、多角形の予備搬送ローラ１３とそれに圧接
するコロ１４で、給送ローラ１５ａ，１５ｂと摩
擦材１６とによつて構成される分離点Ｓまでガイ
ド側板１２ａに沿つて搬送される。この摩擦材１
６は、一端を軸１６ａで回動可能に支持されてお
り、その先端側を圧接バネ１７で給送ローラ１５
に所定の力で圧接される。分離点Ｓで給送ローラ
１５と摩擦材１６との協働によつて一枚毎分離さ
れた原稿は、搬送ローラ１８，１９とそのバツク
アツプコロ２０，２１によつて読取部２２に搬送
される。そしてこの読取部２２を所定の搬送速度
で搬送されながら、図示しない照明光源によつて
照らされ、反射鏡２３、光学レンズ２４を介して
イメージセンサ２５上に結像される画像が電気信
号に変換される。 FIG. 2 is a sectional view schematically showing a reading section of a facsimile machine using an automatic feeding device according to an embodiment of the present invention. Moreover, FIG. 3 is a perspective view of the separation conveyance section. In the figure, 11 is a document loading table 12.
This is a group of multiple manuscripts stacked on a . This manuscript group 1
Reference numeral 1 denotes a polygonal preliminary transport roller 13 and a roller 14 in pressure contact with the polygonal preliminary transport roller 13, which transports the material along the guide side plate 12a to a separation point S formed by the feeding rollers 15a, 15b and the friction material 16. This friction material 1
6 is rotatably supported by a shaft 16a at one end, and the feeding roller 15 is connected to the feeding roller 15 by a pressure spring 17 at its tip end.
is pressed with a predetermined force. The documents are separated sheet by sheet at the separation point S by the cooperation of the feed roller 15 and the friction material 16, and are conveyed to the reading section 22 by the conveyance rollers 18, 19 and their backup rollers 20, 21. While being conveyed through the reading section 22 at a predetermined conveyance speed, an image that is illuminated by an illumination light source (not shown) and formed on the image sensor 25 via the reflecting mirror 23 and the optical lens 24 is converted into an electrical signal. be done.
さて第４図は、前記摩擦材１６の構造を示す斜
視図である。本実施例では、摩擦材１６はアルミ
ダイキヤスト製の保持部材としての保持台１６ｂ
に、その給送ローラ１５ａに対向する密着面に密
着した状態で、摩擦材としての摩擦ゴム１６ｃが
プレス成形されている。そしてこの保持台１６ｂ
は、一端を軸１６ａによつて本体固定板（図示せ
ず）に回動可能に取り付けられている。そしてこ
の軸１６ａから摩擦ゴム１６ｃへ至る傾斜部分１
６ｄは、滑らかに仕上げられ、案内面を構成す
る。さらにその給送方向先端中央部を、バネ１７
で給送ローラ１５ａ，１５ｂに押圧されている。
なお、この給送ローラ１５ａ，１５ｂは回転軸１
６ｃに互いに平行に取り付けられた同径のゴム性
ローラであり、回転軸１５ｃの回転によつて矢示
１５ｄの給送方向へ回転する。 Now, FIG. 4 is a perspective view showing the structure of the friction material 16. In this embodiment, the friction material 16 is a holding base 16b as a holding member made of aluminum die-casting.
A friction rubber 16c as a friction material is press-molded in close contact with the contact surface facing the feeding roller 15a. And this holding stand 16b
is rotatably attached at one end to a main body fixing plate (not shown) by a shaft 16a. An inclined portion 1 from this shaft 16a to the friction rubber 16c
6d is finished smoothly and constitutes a guide surface. Furthermore, the center part of the tip in the feeding direction is connected to the spring 17.
and is pressed by feeding rollers 15a and 15b.
Note that the feeding rollers 15a and 15b are connected to the rotating shaft 1.
6c are rubber rollers of the same diameter that are attached parallel to each other, and are rotated in the feeding direction indicated by an arrow 15d by rotation of the rotating shaft 15c.
次に第５図ａ〜ｃに従つて、本実施例による自
動給送装置の動作を説明する。 Next, the operation of the automatic feeding apparatus according to this embodiment will be explained with reference to FIGS. 5a to 5c.
まず第５図ａに示す如く、原稿積載台１２上に
積載された原稿群１１は、矢示１３ａ方向へ回転
する予備搬送ローラ１３とその圧接コロ１４によ
つて分離点Ｓに給送される。ここで、摩擦材１６
のアルミダイキヤスト製保持台１６ｂの傾斜部分
１６ｄは滑らかに仕上げられており、原稿群１１
を分離点Ｓに導くガイドの役割を果たす。しかも
保持台１６ｂと摩擦ゴム１６ｃとは一体に構成さ
れているので、原稿群１１の先端を傾斜部分１６
ｄによつて案内し分離点Ｓに確実に導くことがで
きる。 First, as shown in FIG. 5a, the document group 11 stacked on the document stacking table 12 is fed to the separation point S by the preliminary conveyance roller 13 rotating in the direction of arrow 13a and its pressure roller 14. . Here, the friction material 16
The inclined portion 16d of the aluminum die-cast holding table 16b is smoothly finished, and the document group 11
It plays the role of a guide to guide the point S to the separation point S. Moreover, since the holding table 16b and the friction rubber 16c are integrally constructed, the tip of the document group 11 is
d, and can be reliably guided to the separation point S.
そして第５図ｂに示す如く、滑らかに分離点Ｓ
まで搬送された原稿群１１は、摩擦材１６として
の摩擦ゴム１６ｃと給送ローラ１５が接触してい
る分離点Ｓで分離される。そして分離された給送
ローラ１５に接する一番下の原稿１１ａのみが搬
送され、その上に積載されている原稿１１ｂは摩
擦ゴム１６ｃによつて停止される。 Then, as shown in Figure 5b, the separation point S is smoothly
The document group 11 that has been conveyed up to this point is separated at a separation point S where the friction rubber 16c as the friction material 16 and the feeding roller 15 are in contact. Then, only the lowermost document 11a in contact with the separated feeding roller 15 is conveyed, and the document 11b stacked above it is stopped by the friction rubber 16c.
また、多数枚の原稿が給送ローラ１５と傾斜部
分１６ｄとの間に送られてきた場合でも保持台１
６ｂは軸１６ａを中心に時計回りに揺動すること
によつて逃げるため、原稿が詰まつて給送不良や
ジヤムを起こすこともない。更に摩擦ゴム１６ｃ
も保持台１６ｂと一体的に揺動するため傾斜部分
１６ｄとの位置関係は常に一定に保たれる。よつ
て送られてきた多数枚の原稿も摩擦ゴム１６ｃに
最適な角度で案内され、一枚ずつ順次進行を阻止
されて、最後には一枚のみが送り出される。 Furthermore, even when a large number of documents are sent between the feeding roller 15 and the inclined portion 16d, the holding table 1
Since the document 6b escapes by swinging clockwise around the shaft 16a, there is no possibility that the document will become jammed and cause feeding failure or jam. Furthermore, friction rubber 16c
Since the holding table 16b swings integrally with the holding table 16b, the positional relationship with the inclined portion 16d is always kept constant. The many sheets of originals that have been sent are guided by the friction rubber 16c at an optimal angle, and their progress is stopped one by one, until finally only one sheet is sent out.
この分離された原稿１１ａは、給送ローラ１５
によつてさらに搬送される。やがてこの原稿１１
ａは、第５図ｃに示すように給送ローラ１５より
も搬送方向下流に配設される搬送ローラ１８に達
する。ここで、原稿の後端と次の原稿の先端との
間に隙間を設けるために、搬送ローラ１８の給送
方向への周速よりも給送ローラ１５の周速を小さ
く設定すると、原稿１１ａが搬送ローラ１８にく
わえ込まれてからは、分離点Ｓと、搬送ローラ１
８と圧接コロ２０とが接触する搬送点１８ａとの
間で原稿１１ａに張力が生ずる。この張力によつ
て、原稿１１ａが摩擦ゴム１６ｃに押しつけら
れ、とくに摩擦ゴム１６ｃの先端部分１６ｆと強
く接触する。このことは、分離点Ｓの他に摩擦ゴ
ム１６ｃの先端部分１６ｆでも分離作用が生ずる
こととなり、たとえ分離点Ｓでは重送を防止でき
ないときでも先端部分１６ｆとの２か所で重送を
阻止することができることになる。 This separated document 11a is transferred to the feeding roller 15
further conveyed by. Eventually this manuscript 11
a reaches the conveyance roller 18 which is disposed downstream of the feed roller 15 in the conveyance direction, as shown in FIG. 5c. Here, in order to create a gap between the trailing edge of the document and the leading edge of the next document, if the circumferential speed of the feed roller 15 is set smaller than the circumferential speed of the feed roller 18 in the feeding direction, the document 11a After being gripped by the conveyance roller 18, the separation point S and the conveyance roller 1
8 and the conveyance point 18a where the pressure roller 20 contacts, tension is generated in the original 11a. Due to this tension, the document 11a is pressed against the friction rubber 16c, and in particular comes into strong contact with the tip portion 16f of the friction rubber 16c. This means that, in addition to the separation point S, a separation action occurs at the tip portion 16f of the friction rubber 16c, and even if double feeding cannot be prevented at the separation point S, double feeding can be prevented at two locations with the tip portion 16f. You will be able to do so.
なお、ローラ１８の周速よりもローラ１５の周
速を小さく設定する機構としては、例えば同一の
駆動源として該駆動源からの駆動を各ローラ１
５，１８へ伝達するギアのギア比を変える、ある
いは別駆動として、ローラ１５へ駆動を与えるモ
ータの回転数をローラ１８へ駆動を与えるモータ
の回転数よりも少なくする、あるいはローラ１５
の径をローラ１８の径よりも大きくして、同一の
ギアあるいは同一の歯数のギアで各々のローラ１
５，１８へ駆動を伝達する等公知の技術を適用す
れば良い。 Note that as a mechanism for setting the circumferential speed of the roller 15 to be smaller than the circumferential speed of the roller 18, for example, if the same drive source is used, each roller 1
5 and 18, or as a separate drive, the rotation speed of the motor that drives the roller 15 is lower than the rotation speed of the motor that drives the roller 18.
The diameter of the roller 18 is made larger than that of the roller 18, and each roller 1 is connected with the same gear or a gear with the same number of teeth.
Known techniques such as transmitting the drive to 5 and 18 may be applied.
なお前記実施例では、保持台１６ｂはアルミダ
イキヤスト製としたが、勿論他の金属でもあるい
はフエノール系等の耐熱性樹脂でも良く、さらに
ゴム材をプレス成形ではなく接着するのであれば
ABS等一般的なプラスチツク材でも可能である。 In the above embodiment, the holding base 16b was made of aluminum die-casting, but of course it may be made of other metals or heat-resistant resins such as phenolic resin, and if the rubber material is bonded instead of press-molded.
It is also possible to use common plastic materials such as ABS.
また摩擦材の材質としては、クロロプレンゴム
やポリウレタンゴム等でも良いし、あるいはロー
レツト加工・あらし加工等を表面に施した樹脂で
も良いが、シート材との摩擦や摺動性・耐摩耗性
等を考慮するとゴム硬度の高いウレタンゴムが適
当であろう。さらにこの摩擦材は給送ローラに接
触するものに限定されることはなく、例えば近接
していても良い。またさらに本実施例では、摩擦
材と給送ローラは搬送される原稿の中央部分に配
置されているが、この例に限定されることはな
く、例えば原稿とほぼ同幅に設けられていても良
い。 The material of the friction material may be chloroprene rubber, polyurethane rubber, etc., or resin whose surface has been knurled, roughened, etc. Considering this, urethane rubber with high rubber hardness would be appropriate. Further, this friction material is not limited to being in contact with the feeding roller, and may be in close proximity, for example. Further, in this embodiment, the friction material and the feeding roller are arranged at the center of the document to be transported, but the invention is not limited to this example. good.
また、シート材の積載台は水平の場合について
説明したが、これは積載台が水平のときに特に搬
送力に問題を生じるためであり、一般に用いられ
ている傾斜のついた積載台をもつ自動給送装置に
用いても同様の効果を得ることは明らかである。
更に本発明では分離搬送部の給送ローラのみでシ
ート材の給送をせず、間欠送り手段としての角型
ローラでこの分離搬送部にシート材を送るため、
給送ローラの搬送力を特に大きくする必要がな
く、また分離ローラの逆送力を特に大きくしなく
ても重ね送りの心配がない。またシート材として
は、原稿に限定されることはなく、例えば転写
紙・感光紙あるいは薄状のプラスチツク等でも良
い。 In addition, although we have explained the case where the sheet material loading platform is horizontal, this is because problems arise especially with the conveying force when the loading platform is horizontal. It is clear that similar effects can be obtained when used in a feeding device.
Furthermore, in the present invention, the sheet material is not fed only by the feeding roller of the separation conveyance section, but the sheet material is fed to the separation conveyance section by a square roller serving as an intermittent feeding means.
There is no need to particularly increase the conveyance force of the feed roller, and there is no need to particularly increase the reverse feed force of the separation roller, so there is no need to worry about overlapping feeding. Further, the sheet material is not limited to an original, and may be, for example, transfer paper, photosensitive paper, thin plastic, or the like.
前述したように、摩擦材の摩擦力が大きすぎる
と重送の確率は小さくなるが、原稿が入りにくく
なつたり、給送ローラがスリツプしたりすること
がある。また逆に摩擦力が小さすぎると、搬送性
は向上するが重送の確率が大きくなり、この摩擦
力の設定および材質管理が非常に困難であつた。
ところが上記説明のように、本実施例によれば、
摩擦材を例えば金属や耐熱性樹脂で作つた保持台
にゴム材等を一体成形し、さらに給送ローラと摩
擦材で構成する分離点まで原稿を案内するように
該保持台の形状を決定することにより、重送の確
率が十分小さくなるように摩擦材の摩擦力を設定
しながらも、原稿搬送性の良い安定した自動給送
を行なうことができる。 As mentioned above, if the frictional force of the friction material is too large, the probability of double feeding will be reduced, but it may be difficult to insert documents or the feeding roller may slip. On the other hand, if the frictional force is too small, the conveyance performance is improved, but the probability of double feeding increases, and it is very difficult to set the frictional force and control the material quality.
However, as explained above, according to this embodiment,
A friction material such as a rubber material is integrally formed on a holding base made of metal or heat-resistant resin, and the shape of the holding base is determined so as to guide the document to a separation point made up of a feeding roller and the friction material. By doing so, it is possible to perform stable automatic feeding with good document conveyance while setting the frictional force of the frictional material so that the probability of double feeding is sufficiently small.
以上本発明によれば、摩擦材および案内面の位
置調整が容易であり、部品点数が少なく、シート
材先端を確実に摩擦材と給送ローラとの間に案内
し、給送不良やジヤムを防止することの出来るシ
ート材自動給送装置を提供することができる。 As described above, according to the present invention, the position adjustment of the friction material and the guide surface is easy, the number of parts is small, and the leading edge of the sheet material is reliably guided between the friction material and the feeding roller, thereby preventing feeding defects and jams. It is possible to provide an automatic sheet material feeding device that can prevent such problems.
第１図は従来例を説明する断面図、第２図は本
発明の一実施例を適用した摩擦材を用いた自動給
送装置を持つフアクシミリ装置の読取り部の模式
断面図、第３図は分離搬送部の斜視図、第４図は
本発明の一実施例を適用した摩擦材の斜視図、第
５図ａ〜ｃは自動給送装置の動作を説明する断面
図である。図において、
１１，１１ａ，１１ｂは原稿群、１５ａ，１５
ｂは給送ローラ、１６は摩擦材、１６ｂは保持
台、１６ｃは摩擦ゴム、１６ｄは傾斜部分、１７
は圧接バネ。
FIG. 1 is a cross-sectional view explaining a conventional example, FIG. 2 is a schematic cross-sectional view of a reading section of a facsimile machine having an automatic feeding device using a friction material to which an embodiment of the present invention is applied, and FIG. FIG. 4 is a perspective view of the separation conveyance section, FIG. 4 is a perspective view of a friction material to which an embodiment of the present invention is applied, and FIGS. 5 a to 5 c are sectional views illustrating the operation of the automatic feeding device. In the figure, 11, 11a, 11b are document groups, 15a, 15
b is a feeding roller, 16 is a friction material, 16b is a holding table, 16c is a friction rubber, 16d is an inclined portion, 17
is a pressure spring.
Claims (1)
ローラに近接または接触する摩擦材との協働によ
り複数枚のシート材から順次一枚ずつシート材を
送り出すシート材自動給送装置において、 揺動自在に支持され、前記摩擦材の前記給送ロ
ーラと反対側の面に密着する密着面を有し、前記
摩擦材を前記給送ローラより離間可能に保持する
剛性を有する保持部材と、 前記摩擦材を前記給送ローラに前記密着面を介
して押圧するために前記保持部材を付勢する付勢
手段を有し、 送られてくるシート材の先端を前記給送ローラ
と前記摩擦材との間に案内する案内面を前記保持
部材に一体的に形成したことを特徴とするシート
材自動給送装置。[Scope of Claims] 1. A sheet material that sequentially feeds out a plurality of sheet materials one by one through cooperation between a feeding roller that feeds the sheet material and a friction material that is close to or in contact with the feeding roller. In the automatic feeding device, the rigidity is such that the friction material is supported so as to be swingable, has a close contact surface that comes into close contact with a surface of the friction material opposite to the feed roller, and holds the friction material so that it can be separated from the feed roller. and a biasing means for biasing the holding member in order to press the friction material against the feeding roller via the contact surface, the tip of the sheet material being fed to the feeding roller. An automatic sheet material feeding device characterized in that a guide surface for guiding between a feeding roller and the friction material is integrally formed on the holding member.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14005682A JPS5931229A (en) | 1982-08-11 | 1982-08-11 | Automatic feeder for sheet material |
| DE19833328872 DE3328872A1 (en) | 1982-08-11 | 1983-08-10 | Automatic feed device for individually separating and feeding sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14005682A JPS5931229A (en) | 1982-08-11 | 1982-08-11 | Automatic feeder for sheet material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5931229A JPS5931229A (en) | 1984-02-20 |
| JPH0259092B2 true JPH0259092B2 (en) | 1990-12-11 |
Family
ID=15259957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14005682A Granted JPS5931229A (en) | 1982-08-11 | 1982-08-11 | Automatic feeder for sheet material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931229A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0732434B2 (en) * | 1989-01-20 | 1995-04-10 | 松下電送株式会社 | Image communication device |
| JPH0750351Y2 (en) * | 1989-03-27 | 1995-11-15 | 株式会社リコー | Automatic document feeder |
| JPH05178512A (en) * | 1991-12-27 | 1993-07-20 | Sumitomo Rubber Ind Ltd | Sheet separation member for paper feeder |
| JP2000296925A (en) * | 1999-04-09 | 2000-10-24 | Pfu Ltd | Paper feeder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713033A (en) * | 1980-06-30 | 1982-01-23 | Ricoh Co Ltd | Automatic sheet feeder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920417U (en) * | 1972-05-26 | 1974-02-21 | ||
| JPS5911957Y2 (en) * | 1980-03-19 | 1984-04-11 | デユプロ精工株式会社 | Sheet material processing equipment |
| JPS56162251U (en) * | 1980-04-30 | 1981-12-02 |
-
1982
- 1982-08-11 JP JP14005682A patent/JPS5931229A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713033A (en) * | 1980-06-30 | 1982-01-23 | Ricoh Co Ltd | Automatic sheet feeder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5931229A (en) | 1984-02-20 |
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