JPS62244828A - Paper feed device - Google Patents
Paper feed deviceInfo
- Publication number
- JPS62244828A JPS62244828A JP61087615A JP8761586A JPS62244828A JP S62244828 A JPS62244828 A JP S62244828A JP 61087615 A JP61087615 A JP 61087615A JP 8761586 A JP8761586 A JP 8761586A JP S62244828 A JPS62244828 A JP S62244828A
- Authority
- JP
- Japan
- Prior art keywords
- feed roller
- roller
- gear
- paper feed
- paper
- 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
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
- Facsimiles In General (AREA)
Abstract
Description
【発明の詳細な説明】 (イ) 産業上の利用分計 本発明は原稿自動給紙機構を備えた給紙装置に関する。[Detailed description of the invention] (b) Industrial usage total The present invention relates to a paper feeding device equipped with an automatic document feeding mechanism.
(r、+) 従来の技術
ファクシミリ装置の原稿自動給紙I!構は、複数枚重ね
てセットされた送信原稿を1枚ずつ分離して読取部に給
送するよう構成され例えば実開昭60−45558号公
報に示されている。即ち第7図に示すように原稿台(1
)にセットされた複数枚の原稿(2)は、給紙ローラ(
3)の回転により最上部の原稿より1枚ずつ繰り出され
、送りローラ(4)(4′)より移送され検出センサ部
(5)を経て密着イメージセンサ(6)と読取ローラ(
7)で構成きれた読取部に送られるよう構成されている
。そして給紙ローラ(3)には原稿の分離を確実に行な
う為に、分離用のブレーキ板(8)と、このブレーキ板
(8)を給紙ローラ(3)に一定荷重で押圧する弾性材
で構成された押圧板(9)と、給紙ローラ(3)の回転
駆動力を原稿用紙に伝え原稿の移送を確実にするための
弾性を有した給紙板(lO)が設けられている。又給紙
ローラ(3)と送りローラ(4)(4’)間には速度差
が設けられており、繰り出される原稿間に所定の隙間を
形成するよう構成されている。更に駆動源であるパルス
モータ(11〉の駆動ギヤ(12)と、送りローラ(4
)に設けられた第1ギヤ(13)と、読取ローラ(7)
に設けられたギヤ(14)間にタイミングベルト(15
)が架設され、パルスモータ(11)の回転で送りロー
ラく4)及び読取ローラ(7)を回転駆動すると共に、
送りローラ(4)に固定された第2ギヤ(16)と、給
紙ローラ(3)に同定されたギヤ(17)の噛合で給紙
ローラく3)が回転されるよう構成されている。(r, +) Conventional technology Automatic document feeding of facsimile machines I! The mechanism is configured to separate a plurality of documents to be sent one by one and feed them to a reading section, as shown in, for example, Japanese Utility Model Application Laid-Open No. 60-45558. That is, as shown in FIG.
) The multiple originals (2) set in the paper feed roller (
3), the uppermost original is fed out one by one by the rotation of the original, transported by the feed rollers (4) (4'), passed through the detection sensor section (5), and then sent to the contact image sensor (6) and the reading roller (
7). The paper feed roller (3) is equipped with a separating brake plate (8) and an elastic material that presses the brake plate (8) against the paper feed roller (3) with a constant load in order to reliably separate the documents. There are provided a pressure plate (9) consisting of a pressure plate (9), and a paper feed plate (lO) having elasticity for transmitting the rotational driving force of the paper feed roller (3) to the document paper and ensuring the transfer of the document. Further, a speed difference is provided between the paper feed roller (3) and the feed rollers (4) (4'), so that a predetermined gap is formed between the documents being fed out. Furthermore, the drive gear (12) of the pulse motor (11), which is the drive source, and the feed roller (4)
) and the reading roller (7).
A timing belt (15) is placed between the gears (14) provided in the
) is installed, and the rotation of the pulse motor (11) drives the feed roller (4) and the reading roller (7).
The second gear (16) fixed to the feed roller (4) and the gear (17) identified on the paper feed roller (3) are engaged to rotate the paper feed roller (3).
したがって給紙ローラ(3)と送りローラ(4)の速度
差により給紙される原稿間に所定の隙間を形成しようと
すれば、給紙ローラく3〉と送りローラ(4>(4’)
間の距離を充分大きくする必要が有り、そうすれば送り
ローラく4)から給紙ローラ(3)へ駆動力を伝達する
ギヤ(16)(17)の径が大きくなり、原稿走行系の
長さ及び高さに於いて小型化を図るのが難しいという問
題が有った。そこで小型化を計る為に、給紙ローラ(3
)と送りローラ(4)間の距離を縮めると、基本機能で
ある分離能力が低下し、原稿の紙厚によっては分離不能
になるという問題が有った。Therefore, if you want to form a predetermined gap between the documents fed by the speed difference between the paper feed roller (3) and the feed roller (4),
It is necessary to make the distance between the paper feed rollers (3) sufficiently large, and the diameters of the gears (16) and (17) that transmit the driving force from the feed roller (4) to the paper feed roller (3) will become large, and the length of the document transport system will increase. There was a problem in that it was difficult to achieve miniaturization in terms of size and height. Therefore, in order to downsize the paper feed roller (3
) and the feed roller (4), the separation ability, which is a basic function, decreases, and depending on the paper thickness of the document, there is a problem that separation becomes impossible.
(ハ)発明が解決しようとする問題点
本発明はと述の問題点を解決すべくなされたもので、充
分な分離性能を確保しながら小型化を達成した給紙装置
を提供することを目的とするものである。(c) Problems to be Solved by the Invention The present invention has been made to solve the problems mentioned above, and its purpose is to provide a paper feeding device that achieves miniaturization while ensuring sufficient separation performance. That is.
(ニ)問題点を解決するための手段
本発明は給紙ローラを送りローラに圧接して駆動し、送
りローラと読取ローラに速度差を設げると共に、送りロ
ーラを間欠駆動するよう構成したものである。(d) Means for Solving the Problems The present invention is configured such that the paper feed roller is driven in pressure contact with the feed roller, a speed difference is provided between the feed roller and the reading roller, and the feed roller is driven intermittently. It is something.
(ホ) 作用
本発明は上述のように構成しているので、原稿の走行径
路を短縮でき、送りローラの間欠駆動により原稿間に所
定の隙間を形成し、原稿の分離を1枚ずつ確実に行なう
ことができる。(E) Function Since the present invention is configured as described above, the travel path of the original can be shortened, and a predetermined gap is formed between the originals by intermittent driving of the feed roller, so that the originals can be reliably separated one by one. can be done.
(へ)実施例
以下本発明の実施例を図面と共に説明する。尚第7図と
同一構成要素については同一図番で示し、本発明により
改良された点につき説明する。(f) Examples Examples of the present invention will be described below with reference to the drawings. Components that are the same as those in FIG. 7 are indicated by the same reference numbers, and points improved by the present invention will be explained.
給紙ローラ(3)が送りローラ(4)に圧接され、送り
ローラ軸(18)にはタイミングベルト(15)が架設
されるギヤ(19)が回転自在に装着されていると共に
、ギヤ(19)に突設した係合ピン(20)を収納する
切欠部(21)が形成された駆動カム<22)が固着さ
れている。したがって係合ビン(20)と駆動カム(2
2)との係合により、ギヤ(19)の回転力が送りロー
ラ軸(18)に伝達され、送りローラ(4)並びに給紙
ローラ(3)を回転駆動する。読取ローラ軸(23)に
固着されたギヤ(14)は、送りローラ軸(18)のギ
ヤ〈19)より僅かに小さく、読取ローラ(7)の周速
度が送りローラ(4)の周速度より速くなるよう構成さ
れている。The paper feed roller (3) is in pressure contact with the feed roller (4), and a gear (19) on which a timing belt (15) is installed is rotatably attached to the feed roller shaft (18). ) is fixed with a drive cam <22) in which a notch (21) for accommodating an engagement pin (20) protruding from the drive cam <22) is formed. Therefore, the engagement pin (20) and the drive cam (2
2), the rotational force of the gear (19) is transmitted to the feed roller shaft (18), thereby rotationally driving the feed roller (4) and paper feed roller (3). The gear (14) fixed to the reading roller shaft (23) is slightly smaller than the gear (19) of the feed roller shaft (18), so that the peripheral speed of the reading roller (7) is lower than the peripheral speed of the feed roller (4). It is designed to be fast.
次に斯る構成よりなる本発明の動作につき説明する。送
信原稿(2)を原稿台(1)にセットすると、図示しな
いセンサによる原稿の検出で、パルスモータ(11)が
反時計方向に駆動を開始し、送りローラ軸り18)に装
着されたギヤ(19)の回転で、係合ビン(20)が駆
動カム(22)の切欠部(21)の一端に係合すること
により、ギヤ(19)の回転力が送りローラ軸(18)
に伝達きれ、送りローラ(4)と給紙ローラ(3)が第
3図に示すように回転駆動され、原稿台(1)にセット
されている最上部の原稿(2)が繰り出される。Next, the operation of the present invention having such a configuration will be explained. When a transmission document (2) is set on the document table (1), a sensor (not shown) detects the document, and the pulse motor (11) starts to drive counterclockwise, and the gear attached to the feed roller shaft 18) starts to drive. (19) causes the engagement pin (20) to engage with one end of the notch (21) of the drive cam (22), so that the rotational force of the gear (19) is transferred to the feed roller shaft (18).
When the transmission is completed, the feed roller (4) and paper feed roller (3) are driven to rotate as shown in FIG. 3, and the uppermost document (2) set on the document table (1) is fed out.
給紙ローラ(3)の回転による原稿(2)の繰り出しで
原稿(2〉が読取ローラ(7)に達すると、読取ローラ
く7)の周速度が送りローラ(4)の周速度より大きい
為、原稿(2)を介して送りローラ(4)も読取ローラ
(7)と同速度で回転されるので、第4図に示すように
相対的に係合ビン(20)が駆動カム(22〉の切欠部
(21)内を移動される。原稿(2)の終端が送りロー
ラ(4)に到達すると第5図に示すように保合ピン(2
0)が駆動カム(22)の切欠部(21)の他端に位置
している。この状態から読取ローラ(7)の回転で原稿
(2)の終端が送りローラ(4)を通過すると、原稿(
2)を介しての駆動力がなくなり、又係合ビン(20)
は駆動カム(22)の切欠部(21)内を移動されてい
る為、ギヤ(19〉の回転が送りローラ軸(18)に伝
達されず、送りローラ(4)及び給紙[7−ラ(3)は
この間停止しており原稿(2)の給紙を行なわない為、
原稿間に所定の隙間(A)が形成される。ギヤ(19)
が回転し係合ビン(20)が、駆動カム(22)の一端
に係合されると前述と同様にして送りローラ(4)及び
給紙ローラ(3)が回転し2枚目の原稿〈2〉の給紙を
行なう。このようにして給紙された原稿(2〉は、密着
イメージセンサ(6)で読み取られ、所定の信号処理を
して送信される。When the original (2) reaches the reading roller (7) due to the rotation of the paper feed roller (3), the peripheral speed of the reading roller (7) is greater than the peripheral speed of the feed roller (4). Since the feed roller (4) is also rotated at the same speed as the reading roller (7) via the document (2), the engagement bin (20) is relatively rotated by the drive cam (22) as shown in FIG. When the end of the document (2) reaches the feed roller (4), the retaining pin (2) is moved as shown in FIG.
0) is located at the other end of the notch (21) of the drive cam (22). From this state, when the reading roller (7) rotates and the end of the document (2) passes the feed roller (4), the document (
2), the driving force through the engagement pin (20) is lost, and the engagement pin (20)
is moved within the notch (21) of the drive cam (22), so the rotation of the gear (19) is not transmitted to the feed roller shaft (18), and the rotation of the gear (19) is not transmitted to the feed roller (4) Since (3) is stopped during this time and the document (2) is not fed,
A predetermined gap (A) is formed between the documents. Gear (19)
rotates and the engagement bin (20) is engaged with one end of the drive cam (22), and the feed roller (4) and paper feed roller (3) rotate in the same manner as described above to feed the second document. 2) Perform paper feeding. The document (2>) fed in this way is read by a contact image sensor (6), subjected to predetermined signal processing, and then transmitted.
尚原稿間の隙間寸法(A)は、駆動カム(22)の切欠
部(21〉の大きさを変更することにより、適切な隙間
に設定することができる。Note that the gap size (A) between the documents can be set to an appropriate gap by changing the size of the notch (21>) of the drive cam (22).
(ト) 発明の効果
上述の如く本発明の給紙装置は、給紙ローラを送りロー
ラに圧接して駆動すると共に、読取ローラと送りローラ
間に速度差を設け、更に送りローラを間欠駆動するよう
構成したことにより、原稿走行径路の短縮が計れ小型化
を達成できると共に、原稿間に所定の隙間を形成しなが
ら確実に分離を行なうことができるもので、極めて実用
的効果大なるものである。(G) Effects of the Invention As described above, the paper feeding device of the present invention drives the paper feeding roller by pressing it against the feeding roller, provides a speed difference between the reading roller and the feeding roller, and further drives the feeding roller intermittently. With this configuration, it is possible to shorten the document travel path and achieve miniaturization, and it is also possible to reliably separate the documents while forming a predetermined gap between them, which has an extremely large practical effect. .
第1図は本発明の給紙装置を示す側面図、第2図は同じ
く斜視図、第3図、第4図、第5図、第6図は第1図の
動作状態を示す概略側面図、第7図は給紙装置の従来例
を示す側面図である。
(3)・・・給紙ローラ、(4)・・・送りローラ、(
6)・・・密着イメージセンサ、(7)・・・読取ロー
ラ、(11)・・・パルスモータ。
出願人 三洋電機株式会社 外1名
代理人 弁理士 西野卓嗣(外1名)
第1図Fig. 1 is a side view showing the paper feeding device of the present invention, Fig. 2 is a perspective view thereof, and Figs. 3, 4, 5, and 6 are schematic side views showing the operating state of Fig. 1. , FIG. 7 is a side view showing a conventional example of a paper feeding device. (3)...Paper feed roller, (4)...Feed roller, (
6)...Contact image sensor, (7)...Reading roller, (11)...Pulse motor. Applicant: Sanyo Electric Co., Ltd. (1 other person) Attorney: Takuji Nishino (1 other person) Figure 1
Claims (1)
レーキ板により1枚ずつ分離し、分離した用紙を送りロ
ーラにより密着イメージセンサと読取ローラよりなる読
取部に移送するよう構成した給紙装置に於いて、前記給
紙ローラを送りローラに圧接し、送りローラと読取ロー
ラの回転に速度差を設けると共に、送りローラを間欠駆
動するよう構成したことを特徴とする給紙装置。(1) A feeder configured to separate multiple stacked sheets of paper such as originals one by one using a feed roller and a brake plate, and transport the separated sheets using a feed roller to a reading section consisting of a contact image sensor and a reading roller. A paper feeding device characterized in that the paper feeding roller is brought into pressure contact with a feeding roller, a speed difference is provided between rotations of the feeding roller and the reading roller, and the feeding roller is driven intermittently.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61087615A JPS62244828A (en) | 1986-04-16 | 1986-04-16 | Paper feed device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61087615A JPS62244828A (en) | 1986-04-16 | 1986-04-16 | Paper feed device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62244828A true JPS62244828A (en) | 1987-10-26 |
Family
ID=13919881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61087615A Pending JPS62244828A (en) | 1986-04-16 | 1986-04-16 | Paper feed device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62244828A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468432A2 (en) * | 1990-07-24 | 1992-01-29 | Canon Kabushiki Kaisha | Automatic sheet supplying apparatus |
-
1986
- 1986-04-16 JP JP61087615A patent/JPS62244828A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468432A2 (en) * | 1990-07-24 | 1992-01-29 | Canon Kabushiki Kaisha | Automatic sheet supplying apparatus |
US5222723A (en) * | 1990-07-24 | 1993-06-29 | Canon Kabushiki Kaisha | Sheet supplying apparatus with an intermittently driven sheet separator and continously driven sheet conveyor |
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