JPH1124183A - Original pressing cover - Google Patents

Original pressing cover

Info

Publication number
JPH1124183A
JPH1124183A JP9182400A JP18240097A JPH1124183A JP H1124183 A JPH1124183 A JP H1124183A JP 9182400 A JP9182400 A JP 9182400A JP 18240097 A JP18240097 A JP 18240097A JP H1124183 A JPH1124183 A JP H1124183A
Authority
JP
Japan
Prior art keywords
original
document
cover
pressing
sheet 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.)
Pending
Application number
JP9182400A
Other languages
Japanese (ja)
Inventor
Toshihiro Kawamura
敏広 川村
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery 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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Priority to JP9182400A priority Critical patent/JPH1124183A/en
Publication of JPH1124183A publication Critical patent/JPH1124183A/en
Pending legal-status Critical Current

Links

Landscapes

  • Holders For Sensitive Materials And Originals (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PROBLEM TO BE SOLVED: To accurately read an original by an original read part by constituting an original pressing cover of a platen cover freely opened/closed, a sheet member coming in contact with the back surface of the original and an elastic member pressing the sheet member to the back surface of the original at many points. SOLUTION: This original pressing cover C is attached to the original read part A through the supporting point P3 of an opening/closing mechanism E and is constituted of the platen cover 51, the sheet member 54 and a soft sponge member 52 being the elastic member. The cover 51 is attached to the mechanism E and the member 54 comes in contact with the back surface of the original D. The member 52 intervenes between the cover 51 and the member 54. The lower surface of the member 52 has many recesses 53b and many protrusions 53a, and the top of the protrusions 53a is stuck and attached to the back surface of the member 54. In such a case, each protrusions 53a is deformed to absorb warpage and obtains uniform pressing force with the member 52 as a whole.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、例えば、コピー
機、或いはファクシミリ機能とコピー機能とを兼用する
画像記録装置等、静止した原稿を載せる静止原稿読取部
を有する装置で用いられ、原稿読取部に載せられた原稿
を上方より押さえる原稿押さえカバーに関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in an apparatus having a stationary original reading section on which a stationary original is placed, such as a copier or an image recording apparatus having both a facsimile function and a copying function. And a document pressing cover for pressing a document placed on a document from above.

【0002】[0002]

【従来の技術】従来、原稿読取部の静止原稿読取面に載
せられた原稿を上方より押さえる原稿押さえカバーは、
原稿読取部に回動自在に支持された樹脂製のプラテンカ
バーと、原稿に接触するシート部材とから構成されてい
る。そして、一般にプラテンカバーとシート部材との間
には、シート部材を原稿の背面に押圧するスポンジ部材
が設けられていた。スポンジ部材は所定厚の板状部材で
あり、上面全面がプラテンカバーに貼られ、下面全面が
シート部材の背面全体に貼られるように取付けられてい
た。
2. Description of the Related Art Conventionally, a document pressing cover for pressing a document placed on a stationary document reading surface of a document reading section from above,
It is composed of a resin platen cover rotatably supported by the document reading unit and a sheet member that comes into contact with the document. In general, a sponge member for pressing the sheet member against the back of the document is provided between the platen cover and the sheet member. The sponge member was a plate-like member having a predetermined thickness, and was attached such that the entire upper surface was attached to the platen cover, and the entire lower surface was attached to the entire back surface of the sheet member.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上述し
たような従来の原稿押さえカバーでは、プラテンカバー
に反りがあれば、その反りによりスポンジ部材も反り、
スポンジ部材に歪が発生してしまう。その歪みにより、
スポンジ部材54による均一な押圧力が得られないとい
った問題が発生していた。また、歪み量によってはシー
ト部材の原稿押圧面の平面度が失われ、湾曲したものと
なる。そのため、原稿読取部の静止原稿読取面上の原稿
を確実に押圧できず、原稿の歪み等により、原稿が部分
的に静止原稿読取面から浮き上がり読み取り画像が歪ん
だり、読み取られない部分が発生する問題を引き起こし
ていた。また、原稿押さえカバーが原稿を十分に押さえ
つけらていなと、外部より光が入り、読取画質が劣って
しまうといった問題もあった。
However, in the conventional document holding cover described above, if the platen cover is warped, the sponge member also warps due to the warpage.
Strain occurs in the sponge member. Due to that distortion,
There has been a problem that a uniform pressing force cannot be obtained by the sponge member 54. Further, depending on the amount of distortion, the flatness of the original pressing surface of the sheet member is lost and the sheet member becomes curved. As a result, the original on the stationary original reading surface of the original reading unit cannot be reliably pressed, and the original partially rises from the still original reading surface due to the distortion of the original, and the read image is distorted or a part that cannot be read occurs. Was causing problems. Further, if the document pressing cover does not sufficiently hold down the document, there is a problem that light enters from outside and the read image quality deteriorates.

【0004】本発明の目的は、従来のこのような欠点を
解消し、プラテンカバーが反りを有していても、原稿読
取部の静止原稿読取面上に原稿を確実に押圧でき、原稿
読取部に原稿を正確に読み取らせることができる原稿押
さえカバーを提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional drawback, and even if the platen cover is warped, the original can be reliably pressed onto the stationary original reading surface of the original reading section. An object of the present invention is to provide a document holding cover that allows a user to read a document accurately.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明の原稿押さえカバーは、平坦な静止原稿読取
部に開閉自在に設けられたプラテンカバーと、原稿読取
部の静止原稿読取面に載せられた原稿の背面に接触する
シート部材と、プラテンカバーとシート部材との間に介
在し、シート部材を原稿の背面に多点で押圧する弾性部
材とからなる。また、弾性部材が、多数の凹凸を有する
スポンジ部材である。さらに、スポンジ部材の多数の凹
凸が、シート部材と対向する面にある。
In order to achieve the above object, a document holding cover according to the present invention comprises a platen cover provided on a flat stationary document reading section so as to be openable and closable, and a stationary document reading surface of the document reading section. And a resilient member interposed between the platen cover and the sheet member and pressing the sheet member against the back of the document at multiple points. Further, the elastic member is a sponge member having a large number of irregularities. Further, a number of irregularities of the sponge member are present on the surface facing the sheet member.

【0006】[0006]

【発明の実施の形態】以下、本発明の原稿押さえカバー
の実施の形態を図面を参照しつつ説明する。図1は、本
発明の実施の形態の原稿押さえカバーの閉状態を示す概
略側面図である。図2は、本発明の原稿押さえカバーが
適用される画像記録装置の斜視図である。図3は、図2
の画像読取部の断面図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a document pressing cover according to the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing a closed state of a document pressing cover according to an embodiment of the present invention. FIG. 2 is a perspective view of an image recording apparatus to which the document pressing cover of the present invention is applied. FIG. 3 shows FIG.
3 is a cross-sectional view of the image reading unit.

【0007】先ず、本発明の原稿押さえカバーの適用例
として、静止原稿の画像読取部を上部に設けた画像記録
装置について、図2及び図3により説明する。装置全体
の筐体構造としては、原稿読取部Aと記録部10とが上
下に設けられている。画像読取部は、画像記録装置の上
部に設けられるものであり、本等を載せる透明状の静止
原稿読取面Bが上面に設けられている。そして、静止原
稿読取面Bの側方にて、原稿読取部Aに、開閉機構Eを
介して開閉自在に原稿押さえカバーCを取り付けてお
り、原稿押さえカバーCにて、静止原稿読取面B上に置
かれた原稿を上方より押さえるものとなっている。原稿
押さえカバーCの詳細は後述する。
First, as an application example of the document pressing cover of the present invention, an image recording apparatus having an image reading section for a static document provided on an upper portion will be described with reference to FIGS. As a housing structure of the entire apparatus, a document reading unit A and a recording unit 10 are provided vertically. The image reading unit is provided on the upper part of the image recording apparatus, and has a transparent stationary document reading surface B on which books and the like are placed is provided on the upper surface. On the side of the stationary document reading surface B, a document holding cover C is attached to the document reading section A via an opening / closing mechanism E so as to be openable and closable. Is pressed down from above. The details of the document holding cover C will be described later.

【0008】原稿読取部A内においては、図3の如く、
その底面にレンズ13a及び光電変換器13bを備えた
光電変換ユニット13が設けられている。そして、光源
11a及び第一反射鏡11bを備えた第一走査体11
と、第二反射鏡12a及び第三反射鏡12bを備えた第
二走査体12とを、静止原稿読取面Bの下方で搬送さ
せ、光源11aで静止原稿読取面Bを照射する。その上
方に置かれる原稿Dの画像を、第一反射鏡11b、第二
反射鏡12a、及び第三反射鏡12bを介して反射し、
光電変換ユニット13のレンズ13aで結像させ、光電
変換器13bにて電気信号化するものである。
In the document reading section A, as shown in FIG.
A photoelectric conversion unit 13 including a lens 13a and a photoelectric converter 13b is provided on the bottom surface. Then, the first scanning body 11 including the light source 11a and the first reflecting mirror 11b
And the second scanning body 12 having the second reflecting mirror 12a and the third reflecting mirror 12b are transported below the stationary original reading surface B, and the light source 11a irradiates the stationary original reading surface B. The image of the document D placed thereon is reflected via the first reflecting mirror 11b, the second reflecting mirror 12a, and the third reflecting mirror 12b,
The image is formed by the lens 13a of the photoelectric conversion unit 13 and converted into an electric signal by the photoelectric converter 13b.

【0009】原稿読取部A上部には、静止原稿読取面B
に隣接して、移動原稿読取部14が設けられており、そ
の上方には連続原稿供給部15が設けられていて、一枚
ずつ原稿を連続的に供給して読み取ることもできるよう
になっている。この場合には、移動原稿読取部14の下
方に第一走査体11及び第二走査体12を静止させてお
くものである。
A stationary original reading surface B is provided above the original reading section A.
Is provided adjacent thereto, and a continuous document supply unit 15 is provided above the moving document reading unit 14, so that the document can be continuously supplied and read one by one. I have. In this case, the first scanning body 11 and the second scanning body 12 are kept below the moving document reading unit 14.

【0010】このような画像読取部にて読み取られた画
像情報や、或いは、受信されたファクシミリ情報を基
に、記録部10内に形成されている記録部にて、記録紙
に記録がなされる。
On the basis of the image information read by such an image reading unit or the received facsimile information, a recording unit formed in the recording unit 10 records on a recording sheet. .

【0011】次に、本発明の原稿押さえカバーCの詳細
について図1を参照しつつ述べる。先ず、原稿押さえカ
バーCの構成について述べる。上述のように、原稿押さ
えカバーCは、原稿読取部Aに後述する開閉機構Eの支
点P3を介して取り付けられている。詳述すると、原稿
押さえカバーCは、プラテンカバー51とシート部材5
4と弾性部材である柔軟なスポンジ部材52とから構成
されている。プラテンカバー51は、開閉機構Eに取付
けられる。シート部材54は、原稿Dの背面に接触する
部材である。
Next, the details of the document pressing cover C of the present invention will be described with reference to FIG. First, the configuration of the document pressing cover C will be described. As described above, the document pressing cover C is attached to the document reading unit A via the fulcrum P3 of the opening / closing mechanism E described later. More specifically, the document holding cover C is composed of the platen cover 51 and the sheet member 5.
4 and a flexible sponge member 52 which is an elastic member. The platen cover 51 is attached to the opening / closing mechanism E. The sheet member 54 is a member that contacts the back surface of the document D.

【0012】そして、スポンジ部材52が、プラテンカ
バー51とシート部材54との間に介在している。スポ
ンジ部材52の上面は平面でありその上面部全面がプラ
テンカバー51の下面に貼られて取り付けられている。
スポンジ部材52の下面は、多数の凹部53bと多数の
凸部53aを有しており、凸部53aの先側はシート部
材54の背面に貼られて取り付けられている。それよ
り、原稿押さえカバーCが閉状態のとき、シート部材5
4の多点が独立してスポンジ部材52の各凸部53aに
より押圧されるようになっている。また、弾性部材とし
て、スポンジ部材52が用いられているので原稿押さえ
カバーCの重量を軽くし、原稿押さえカバーCの開閉動
作を容易に行うことができる。
A sponge member 52 is interposed between the platen cover 51 and the sheet member 54. The upper surface of the sponge member 52 is flat, and the entire upper surface portion thereof is attached to the lower surface of the platen cover 51.
The lower surface of the sponge member 52 has a large number of concave portions 53b and a large number of convex portions 53a. When the document holding cover C is in the closed state, the sheet member 5
4 are independently pressed by the respective projections 53a of the sponge member 52. Further, since the sponge member 52 is used as the elastic member, the weight of the document pressing cover C can be reduced, and the opening and closing operation of the document pressing cover C can be easily performed.

【0013】次に、原稿押さえカバーCの作用について
述べる。プラテンカバー51は、軽量化して開閉の操作
性を向上させる等のために例えば樹脂を用いるが、それ
により図1に示されるような反りが発生する(尚、連続
原稿供給部15は省略して示している。)。図1で示す
閉状態のプラテンカバー51は、静止原稿読取面Bに対
して凹凸の反り形状となっている。スポンジ部材52
が、板状部材等であればプラテンカバー51の上述の反
りによりスポンジ部材52にも歪みが生じる。しかし、
スポンジ部材52の下面に設けられた凹部53bによ
り、スポンジ部材52の歪みが逃がされた状態となり、
特に凸部53aは殆ど歪みを生じない。そのため、プラ
テンカバー51に反りがあっても、スポンジ部材52の
弾性力に影響がない。凸部53aの1つ1つが反りを吸
収するように変形し、スポンジ部材52と全体として均
一な押圧力が得られる。
Next, the operation of the document pressing cover C will be described. The platen cover 51 is made of, for example, a resin to reduce the weight and improve the operability of opening and closing. However, a warp as shown in FIG. 1 is generated thereby, and the continuous document supply unit 15 is omitted. Is shown). The platen cover 51 in the closed state shown in FIG. 1 has an uneven warp shape with respect to the stationary document reading surface B. Sponge member 52
However, if the platen member or the like is used, the sponge member 52 is distorted due to the above-described warpage of the platen cover 51. But,
Due to the concave portion 53b provided on the lower surface of the sponge member 52, the distortion of the sponge member 52 is released,
In particular, the projection 53a hardly causes distortion. Therefore, even if the platen cover 51 is warped, the elastic force of the sponge member 52 is not affected. Each of the projections 53a is deformed so as to absorb the warp, and a uniform pressing force is obtained with the sponge member 52 as a whole.

【0014】また、シート部材54の原稿押圧面の平面
度を保つことができる。それにより、原稿読取部Aの静
止原稿読取面B上の原稿Dを確実に押圧することがで
き、原稿Dに歪みがあっても、読み取り画像が歪んだ
り、読み取られない部分が発生することがない。即ち、
静止原稿読取面B上の原稿Dを、原稿読取部に正確に読
み取らすことができるのである。
Further, the flatness of the original pressing surface of the sheet member 54 can be maintained. As a result, the original D on the stationary original reading surface B of the original reading unit A can be reliably pressed, and even if the original D is distorted, the read image may be distorted or a part that cannot be read may occur. Absent. That is,
The original D on the stationary original reading surface B can be accurately read by the original reading unit.

【0015】尚、上記実施の形態では、弾性部材の凹
部、凸部が下面である場合を示したが、弾性部材の凹
部、凸部が上面である場合も本発明を適用することは可
能である。
In the above embodiment, the case where the concave portion and the convex portion of the elastic member are the lower surface has been described. However, the present invention can be applied to the case where the concave portion and the convex portion of the elastic member are the upper surface. is there.

【0016】また、上記実施の形態では、弾性部材が凹
部、凸部を有するスポンジ部材である場合を示したが、
例えば、多数の圧縮スプリングを代用しても本発明を同
様に適用することができる。
In the above embodiment, the case where the elastic member is a sponge member having a concave portion and a convex portion has been described.
For example, the present invention can be similarly applied even when a large number of compression springs are substituted.

【0017】[0017]

【発明の効果】上述のような請求項1の発明により、プ
ラテンカバーに反りがあっても、弾性部材を歪ませるこ
とがなく、弾性部材により多点が独立して押圧され、弾
性力に影響を与えるといったことが防止される。そし
て、シート部材に影響を与えず、シート部材の原稿押圧
面の平面度を保つことができ、原稿読取部の静止原稿読
取面上の原稿を確実に押圧することができ、原稿に歪み
があって原稿が浮き上がり、読み取り画像が歪んだり、
読み取られない部分が発生するといった問題が発生する
ことがない。静止原稿読取面上の原稿を、原稿読取部に
正確に読み取らすことができるのである。
According to the first aspect of the present invention, even if the platen cover is warped, the elastic member is not distorted, and multiple points are independently pressed by the elastic member, thereby affecting the elastic force. Is prevented. Then, the flatness of the original pressing surface of the sheet member can be maintained without affecting the sheet member, and the original on the stationary original reading surface of the original reading section can be surely pressed. The document will rise, the scanned image will be distorted,
There is no problem that a part that cannot be read occurs. The original on the stationary original reading surface can be accurately read by the original reading unit.

【0018】また、上述のような請求項2の発明によ
り、弾性部材がスポンジであるため原稿押さえカバーの
重量を軽くし、開閉動作を容易に行うことができる。
According to the second aspect of the present invention, since the elastic member is a sponge, the weight of the document pressing cover can be reduced, and the opening / closing operation can be easily performed.

【0019】また、上述のような請求項3の発明によ
り、プラテンカバーの反りの影響を弾性部材が、より受
け難くしている。
According to the third aspect of the present invention, the elastic member is less affected by the warpage of the platen cover.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施の形態の原稿押さえカバーの閉状
態を示す概略側面図である。
FIG. 1 is a schematic side view showing a closed state of a document pressing cover according to an embodiment of the present invention.

【図2】本発明の原稿原稿押さえカバーが適用される画
像記録装置の斜視図である。
FIG. 2 is a perspective view of an image recording apparatus to which the original document pressing cover of the present invention is applied.

【図3】図2の画像読取部の断面図である。FIG. 3 is a cross-sectional view of the image reading unit of FIG.

【符号の説明】[Explanation of symbols]

51 プラテンカバー 52 スポンジ部材 53a 凸部 53b 凹部 54 シート部材 A 原稿読取部 B 静止原稿読取面 C 原稿押さえカバー D 原稿 E 開閉機構 P3 支点 51 platen cover 52 sponge member 53a convex portion 53b concave portion 54 sheet member A original reading section B stationary original reading surface C original pressing cover D original E opening and closing mechanism P3 fulcrum

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 平坦な静止原稿読取部に開閉自在に設け
られたプラテンカバーと、原稿読取部の静止原稿読取面
に載せられた原稿の背面に接触するシート部材と、プラ
テンカバーとシート部材との間に介在し、シート部材を
原稿の背面に多点で押圧する弾性部材とからなることを
特徴とする原稿押さえカバー。
A platen cover provided on a flat stationary document reading section so as to be openable and closable, a sheet member in contact with the back of a document placed on a stationary document reading surface of the document reading section, a platen cover and a sheet member. And an elastic member interposed between the elastic members and pressing the sheet member against the back of the original at multiple points.
【請求項2】 弾性部材が、多数の凹凸を有するスポン
ジ部材であることを特徴とする請求項1に記載の原稿押
さえカバー。
2. The document holding cover according to claim 1, wherein the elastic member is a sponge member having a large number of irregularities.
【請求項3】 スポンジ部材の多数の凹凸が、シート部
材と対向する面にあることを特徴とする請求項2に記載
の原稿押さえカバー。
3. The document pressing cover according to claim 2, wherein a number of irregularities of the sponge member are provided on a surface facing the sheet member.
JP9182400A 1997-07-08 1997-07-08 Original pressing cover Pending JPH1124183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9182400A JPH1124183A (en) 1997-07-08 1997-07-08 Original pressing cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9182400A JPH1124183A (en) 1997-07-08 1997-07-08 Original pressing cover

Publications (1)

Publication Number Publication Date
JPH1124183A true JPH1124183A (en) 1999-01-29

Family

ID=16117656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9182400A Pending JPH1124183A (en) 1997-07-08 1997-07-08 Original pressing cover

Country Status (1)

Country Link
JP (1) JPH1124183A (en)

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