JPS63196441A - Medium guide mechanism in image sensor - Google Patents

Medium guide mechanism in image sensor

Info

Publication number
JPS63196441A
JPS63196441A JP2723487A JP2723487A JPS63196441A JP S63196441 A JPS63196441 A JP S63196441A JP 2723487 A JP2723487 A JP 2723487A JP 2723487 A JP2723487 A JP 2723487A JP S63196441 A JPS63196441 A JP S63196441A
Authority
JP
Japan
Prior art keywords
medium
image sensor
medium guide
pressing roller
guide member
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
JP2723487A
Other languages
Japanese (ja)
Other versions
JPH0550414B2 (en
Inventor
Isamu Sugawara
菅原 勇
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2723487A priority Critical patent/JPS63196441A/en
Publication of JPS63196441A publication Critical patent/JPS63196441A/en
Publication of JPH0550414B2 publication Critical patent/JPH0550414B2/ja
Granted legal-status Critical Current

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  • Controlling Sheets Or Webs (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

PURPOSE:To enable a thin medium to smoothly run by urging a medium guide having a curved surface, confronting an image sensor, toward the image sensor, and by loosely fitting a medium press roller in the medium guide. CONSTITUTION:A medium guide mechanism 22 which may rotate around a pin 29 is arranged confronting an image sensor 21. A medium guide member 24 forms a curved surface facing the image sensor 21, and a medium press roller 26 is loosely fitted onto a support shaft 30 in the most projected part of the Curved surface, the roller 26 being projected in part from the curved surface. Further, the medium guide member 24 is urged toward the image sensor 21 by means of a spring 25. With this arrangement a medium 100 may run smoothly in the direction of the arrow even though it is thin.

Description

【発明の詳細な説明】 〔概要〕 本発明はイメージセンサ部での媒体ジャムを減少させる
ことを目的としたもので、イメージセンサに近接して対
向配置された媒体押し付けローラが媒体走行力により円
滑に所定方向に揺動かつ回転できるようにして目的の達
成を図っている。
[Detailed Description of the Invention] [Summary] The present invention aims to reduce the occurrence of media jams in the image sensor section, and the present invention is aimed at reducing the occurrence of media jams in the image sensor section. The objective is to be achieved by making it possible to swing and rotate in a predetermined direction.

〔産業上の利用分野〕[Industrial application field]

本発明はイメージセンサ部における媒体ガイド機構に関
するものである。
The present invention relates to a medium guide mechanism in an image sensor section.

イメージセンサにより媒体上の情報を読み取る場合、該
媒体をイメージセンサに近接して走行させることが必要
で、このため、イメージセンサとこれに対応する媒体押
し付けローラとの間隙は当然小さくなる。
When reading information on a medium with an image sensor, it is necessary to run the medium close to the image sensor, and therefore the gap between the image sensor and the corresponding medium pressing roller naturally becomes small.

この小さな間隙を通り媒体を走行させる場合、媒体は媒
体押し付けローラと先端が係合する際にジャムを起こし
易く、これは媒体が薄いもののときに特に問題となる。
When media is run through this small gap, it is susceptible to jamming when the media engages the media pushing roller tip-to-edge, which is especially a problem when the media is thin.

従って薄媒体を取り扱う場合、このジャム発生を防止す
る対策は重量な課題となる。
Therefore, when handling thin media, measures to prevent the occurrence of jams become an important issue.

〔従来の技術〕[Conventional technology]

従来のイメージセンサ部における媒体ガイド機構を第3
図に示す。第3図において、1はイメージセンサ、2は
媒体ガイド機構、3は送りローラ、4,5はガイド板で
ある。媒体ガイド機構2は、媒体ガイド部材6と、媒体
押し付けローラ7と、板ばね(賦勢手段)8とより構成
されている。
The medium guide mechanism in the conventional image sensor unit has been replaced with a third one.
As shown in the figure. In FIG. 3, 1 is an image sensor, 2 is a medium guide mechanism, 3 is a feed roller, and 4 and 5 are guide plates. The medium guide mechanism 2 includes a medium guide member 6, a medium pressing roller 7, and a leaf spring (biasing means) 8.

媒体ガイド部材6は、曲面状の媒体ガイド面9を有し、
ビン10に支持されて回動可能である。媒体押し付けロ
ーラ7は、媒体ガイド面9形成部分で第4図に詳細を示
すように媒体ガイド部材6に支軸11を介し回転自在に
支持され、その一部は媒体ガイド面9から突出している
。この媒体押し□      付けローラフの突出部分
とイメージセンサ1の間には小さな間隙(媒体通路)が
形成されている。
The medium guide member 6 has a curved medium guide surface 9,
It is supported by the bin 10 and is rotatable. The medium pressing roller 7 is rotatably supported by the medium guide member 6 via a support shaft 11 at a portion where the medium guide surface 9 is formed, as shown in detail in FIG. 4, and a portion thereof protrudes from the medium guide surface 9. . A small gap (medium passage) is formed between the protruding portion of the medium pushing roller rough and the image sensor 1.

板ばね8は、媒体ガイド部材6を時計方向(媒体ガイド
面9がイメージセンサ1に近接する方向)に賦勢してい
る。
The leaf spring 8 urges the medium guide member 6 in the clockwise direction (the direction in which the medium guide surface 9 approaches the image sensor 1).

送りローラ3により送られてイメージセンサ部に進入す
る薄媒体100は、先端部が媒体ガイド面9に達すると
該媒体ガイド面9により案内され、媒体押し付けローラ
フに達すると、その走行力により該媒体押し付けローラ
7を第3図の反時計方向に回転させ、該媒体押し付けロ
ーラ7を乗り越えてせまい媒体通路を通過する。
The thin medium 100 that is sent by the feed roller 3 and enters the image sensor section is guided by the medium guide surface 9 when its leading end reaches the medium guide surface 9, and when it reaches the medium pressing roller rough, the medium is pushed by the running force. The pressing roller 7 is rotated counterclockwise in FIG. 3, and the medium passes over the pressing roller 7 and passes through the narrow medium path.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

このような構成の場合、薄媒体100の先端が媒体ガイ
ド面9から媒体押し付けローラフに移る境界位置(イ)
で媒体ジャムが発生し易い。これを解決するためには媒
体押し付けローラフの径を大きくすることが考えられる
が、この径を大きくすると、媒体押しつけローラ7の重
量が増加し、媒体走行により該媒体押し付けローラ7を
回転させることが難しくなって問題を解決することはで
きない。
In the case of such a configuration, the boundary position (a) where the leading edge of the thin medium 100 moves from the medium guide surface 9 to the medium pressing roller rough
media jams are likely to occur. In order to solve this problem, it may be possible to increase the diameter of the medium pressing roller rough, but if this diameter is increased, the weight of the medium pressing roller 7 increases, making it difficult to rotate the medium pressing roller 7 as the medium runs. It becomes difficult to solve the problem.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は上述の問題点を解決することのできるイメージ
センサ部における媒体ガイド機構を提供するもので、そ
の原理を第1図に示す。
The present invention provides a medium guide mechanism in an image sensor section that can solve the above-mentioned problems, and the principle thereof is shown in FIG.

第1図において、21はイメージセンサ、24は媒体ガ
イド部材、25は賦勢手段、26は媒体押し付けローラ
で、媒体ガイド部材24.賦勢手段25.媒体押し付け
ローラ26は媒体ガイド機構22を構成する。
In FIG. 1, 21 is an image sensor, 24 is a medium guide member, 25 is an urging means, 26 is a medium pressing roller, and 24 is a medium guide member. Improving means 25. The medium pressing roller 26 constitutes the medium guide mechanism 22 .

媒体ガイド部材24は、曲面状の媒体ガイド面27を有
し、イメージセンサ21と対向配置されて対向方向に進
退可能である。本図では媒体ガイド部材24がピン29
により支持されて回動可能な例を示している。
The medium guide member 24 has a curved medium guide surface 27, is arranged to face the image sensor 21, and can move forward and backward in the opposite direction. In this figure, the medium guide member 24 is connected to the pin 29.
The figure shows an example in which it is supported by and can be rotated.

賦勢手段25は、媒体ガイド部材24を、媒体ガイド面
27がイメージセンサ21に近接する方向に賦勢してい
る。
The biasing means 25 biases the medium guide member 24 in a direction in which the medium guide surface 27 approaches the image sensor 21 .

媒体押し付けローラ26はその一部が媒体ガイド面27
より突出するように媒体ガイド部材24に支軸30を介
し大きながたを持たせて支持されており、該媒体押し付
けローラ26とイメージセンサ21の間には媒体通路2
8が形成される。
A part of the medium pressing roller 26 is a medium guide surface 27.
The medium guide member 24 is supported through a support shaft 30 with a large play so as to protrude further, and a medium passage 2 is provided between the medium pressing roller 26 and the image sensor 21.
8 is formed.

媒体ガイド面27は、媒体押し付けローラ26の媒体ガ
イド面27より突出する部分の媒体進入側の端の位置(
ロ)が支軸30よりイメージセンサ側、すなわち範囲S
内に位置するように形成されている。
The medium guide surface 27 is located at a position (
b) is closer to the image sensor than the support shaft 30, that is, the range S
It is formed to be located inside.

〔作用〕[Effect]

矢印方向に送られてイメージセンサ部に進入する薄媒体
100は、先端部がイメージセンサ部に達するとまず媒
体ガイド面27により案内され、位置(ロ)に達すると
、媒体押し付けローラ26と係合して媒体押し付けロー
ラ26を乗り越えようとする。この場合、媒体押し付け
ローラ26は支軸30に大きながたを持って支持されて
いて支軸30との間の摩擦力が小さく、しかも位置(ロ
)が範囲S内に位置しているため、媒体押し付けローラ
26は反時計方向に揺動しかつ同方向に回転する。この
動きにより、薄媒体100は先端が上にはね上げられ、
円滑に媒体押し付けローラを乗り越えて媒体通路を通過
することが可能になる。位置(ロ)が範囲Sより下方に
位置している場合は、媒体押し付けローラ26が揺動す
る方向は逆(時計方向)になって媒体ジャムが起こり易
くなり、円滑な走行は期待できない。
The thin medium 100 that is sent in the direction of the arrow and enters the image sensor section is first guided by the medium guide surface 27 when its leading end reaches the image sensor section, and when it reaches position (B), it engages with the medium pressing roller 26. and tries to get over the medium pressing roller 26. In this case, since the medium pressing roller 26 is supported by the spindle 30 with a large play, the frictional force between it and the spindle 30 is small, and the position (B) is located within the range S. The medium pressing roller 26 swings counterclockwise and rotates in the same direction. Due to this movement, the tip of the thin medium 100 is flipped upward,
It becomes possible for the medium to smoothly overcome the medium pressing roller and pass through the medium path. If the position (B) is located below the range S, the direction in which the medium pressing roller 26 swings is reversed (clockwise), making it easy for the medium to jam, and smooth running cannot be expected.

〔実施例〕〔Example〕

以下、第2図に関連して本発明の詳細な説明する。 The invention will now be described in detail with reference to FIG.

第2図は本発明に係るイメージセンサ部における媒体ガ
イド機構を示す正面図で、図中、21はイメージセンサ
、22は媒体ガイド機構、23は送りローラである。
FIG. 2 is a front view showing a medium guide mechanism in an image sensor section according to the present invention, in which 21 is an image sensor, 22 is a medium guide mechanism, and 23 is a feed roller.

媒体ガイド機構22は、媒体ガイド部材24と、板ばね
(賦勢手段)25と、媒体押し付けローラ26とよりな
る。
The medium guide mechanism 22 includes a medium guide member 24 , a leaf spring (energizing means) 25 , and a medium pressing roller 26 .

媒体ガイド部材24は、曲面状の媒体ガイド面27を有
してイメージセンサ21と対向配置され、ビン29によ
り回動自在に支持されて対向方向に進退可能である。
The medium guide member 24 has a curved medium guide surface 27 and is arranged to face the image sensor 21, is rotatably supported by a bin 29, and can move forward and backward in the opposite direction.

仮ばね25は、媒体ガイド部材24を、媒体ガイド面2
7がイメージセンサ21に近接する方向(第2図の時計
方向)に賦勢している。
The temporary spring 25 supports the medium guide member 24 against the medium guide surface 2.
7 is activated in a direction approaching the image sensor 21 (clockwise in FIG. 2).

媒体押し付けローラ26は、その一部が媒体ガイド面2
7より突出するように媒体ガイド部材24に支軸30を
介し支持され、該媒体押し付けローラ26と支軸30の
間には大ながたが形成されている。すなわち、媒体押し
付けローラ26の内径は支軸30の径より充分太き(な
っている。
A part of the medium pressing roller 26 is on the medium guide surface 2.
It is supported by the medium guide member 24 via a support shaft 30 so as to protrude from the medium guide member 7, and a large backlash is formed between the medium pressing roller 26 and the support shaft 30. That is, the inner diameter of the medium pressing roller 26 is sufficiently larger than the diameter of the support shaft 30.

媒体ガイド面27は、媒体押し付けローラ26の媒体ガ
イド面27より突出する部分の媒体進入側の端の位置(
ロ)が支軸30よりイメージセンサ21側、すなわち範
囲S内に位置するように形成されている。
The medium guide surface 27 is located at a position (
b) is formed so as to be located closer to the image sensor 21 than the support shaft 30, that is, within the range S.

このような構成を有する媒体ガイド機構の作用は次の通
りである。
The operation of the medium guide mechanism having such a configuration is as follows.

送りローラ23により矢印方向(左方)に送られる薄媒
体100は、先端がイメージセンサ部に達すると媒体ガ
イド面27により案内され、位置(ロ)に達すると媒体
押し付けローラ26と係合してその走行力により媒体押
し付けローラ26を乗り越えようとする。この場合、媒
体押し付けローラ26は支軸30に大きながたを持って
支持されていて支軸30との間の摩擦力が小さく、しか
も位置(ロ)が範囲S内に位置しているため、媒体押し
付けローラ26は反時計方向に揺動しかつ同方向に回転
する。この動きにより、薄媒体100は先端が上にはね
上げられ、円滑に媒体押し付けローラ26を乗り越えて
媒体通路28を通過することが可能になる。位置(ロ)
が範囲Sより下に位置する場合は、媒体押し付けローラ
26が揺動する方向は逆(時計方向)になって媒体ジャ
ムが起こり易くなり、円滑な走行は期待できない。
The thin medium 100 that is sent in the direction of the arrow (to the left) by the feed roller 23 is guided by the medium guide surface 27 when its leading edge reaches the image sensor section, and when it reaches position (B), it engages with the medium pressing roller 26. The running force causes the medium to try to get over the medium pressing roller 26. In this case, since the medium pressing roller 26 is supported by the spindle 30 with a large play, the frictional force between it and the spindle 30 is small, and the position (B) is located within the range S. The medium pressing roller 26 swings counterclockwise and rotates in the same direction. This movement causes the leading end of the thin medium 100 to flip upward, allowing it to smoothly overcome the medium pressing roller 26 and pass through the medium path 28 . Position (b)
If it is located below the range S, the direction in which the medium pressing roller 26 swings is reversed (clockwise), making it easy for the medium to jam, and smooth running cannot be expected.

〔発明の効果〕 以上述べたように、本発明によれば、媒体押し付けロー
ラを大きながたを持って支軸に支持させるとともに、媒
体押し付けローラ突出部分の媒体進入側の端の位置を支
軸よりイメージセンサ側になるようにすることにより、
媒体の厚さが薄い場合でも、該媒体を媒体押し付けロー
ラとイメージセンサの間の狭い媒体通路を通して円滑に
走行させることか可能になる。
[Effects of the Invention] As described above, according to the present invention, the medium pressing roller is supported on the support shaft with a large play, and the position of the end of the medium entry side of the protruding portion of the medium pressing roller is set on the support shaft. By moving it closer to the image sensor side,
Even if the media is thin, it is possible to smoothly run the media through the narrow media path between the media pressing roller and the image sensor.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の原理図、 第2図は本発明の実施例のイメージセンサ部における媒
体ガイド機構を示す正面図、 第3図は従来のイメージセンサ部における媒体ガイド機
構を示す正面図、 第4図は第3図の要部詳細を示す側面図で、図中、 21はイメージセンサ、 22は媒体ガイド機構、 24は媒体ガイド部材、 25は板ばね(賦勢手段)、 26は媒体押し付けローラ、 27は媒体ガイド面、 28は媒体通路、 30は支軸、 100は薄媒体である。
FIG. 1 is a diagram of the principle of the present invention. FIG. 2 is a front view showing a medium guide mechanism in an image sensor section according to an embodiment of the present invention. FIG. 3 is a front view showing a medium guide mechanism in a conventional image sensor section. FIG. 4 is a side view showing details of the main parts of FIG. 3, in which 21 is an image sensor, 22 is a medium guide mechanism, 24 is a medium guide member, 25 is a leaf spring (loading means), and 26 is a medium 27 is a medium guide surface, 28 is a medium path, 30 is a support shaft, and 100 is a thin medium.

Claims (1)

【特許請求の範囲】 イメージセンサ(21)と、 曲面状の媒体ガイド面(27)を有し、前記イメージセ
ンサと媒体通路(28)をはさんで対向配置されて対向
方向に進退可能な媒体ガイド部材(24)と、 前記媒体ガイド部材を、前記媒体ガイド面が前記イメー
ジセンサに近接する方向に賦勢する賦勢手段を(25)
を備えた装置において、 媒体押し付けローラ(26)を設けて、該媒体押し付け
ローラを、前記媒体ガイド部材に、一部が前記媒体案内
面より突出するように支軸(30)を介し大きながたを
持たせて支持させるとともに、 前記媒体案内面を、前記媒体押し付けローラ突出部分の
媒体進入側の端の位置(ロ)が前記支軸より前記イメー
ジセンサ側に位置するように形成したことを特徴とする
イメージセンサ部における媒体ガイド機構。
[Claims] An image sensor (21), and a medium having a curved medium guide surface (27), which is arranged opposite to the image sensor with a medium passage (28) in between, and which can move forward and backward in opposite directions. a guide member (24); and a biasing means (25) for biasing the medium guide member in a direction in which the medium guide surface approaches the image sensor.
In the apparatus, a medium pressing roller (26) is provided, and the medium pressing roller is applied to the medium guide member through a support shaft (30) so that a portion thereof protrudes from the medium guide surface. and the medium guide surface is formed such that the position (b) of the medium entry side end of the protruding portion of the medium pressing roller is located closer to the image sensor than the support shaft. A medium guide mechanism in an image sensor section.
JP2723487A 1987-02-10 1987-02-10 Medium guide mechanism in image sensor Granted JPS63196441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2723487A JPS63196441A (en) 1987-02-10 1987-02-10 Medium guide mechanism in image sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2723487A JPS63196441A (en) 1987-02-10 1987-02-10 Medium guide mechanism in image sensor

Publications (2)

Publication Number Publication Date
JPS63196441A true JPS63196441A (en) 1988-08-15
JPH0550414B2 JPH0550414B2 (en) 1993-07-29

Family

ID=12215382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2723487A Granted JPS63196441A (en) 1987-02-10 1987-02-10 Medium guide mechanism in image sensor

Country Status (1)

Country Link
JP (1) JPS63196441A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5416451A (en) * 1977-07-08 1979-02-07 Mitsubishi Chem Ind Ltd 3,5-dichloro-4-fluoropheyl isocyanate and its preparation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5416451A (en) * 1977-07-08 1979-02-07 Mitsubishi Chem Ind Ltd 3,5-dichloro-4-fluoropheyl isocyanate and its preparation

Also Published As

Publication number Publication date
JPH0550414B2 (en) 1993-07-29

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