JPH0954419A - Image input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the mounting workability of an original by making it possible to easily mount the original at the image input device of a color scanner. SOLUTION: The original holding member 1 of this image input device has an outer cylindrical member 7 disposed concentrically with the revolving shaft of a rotary driving section and an inner cylindrical part 10 disposed concentrically and freely relatively turnably on the inner side of this outer cylindrical part 7. Both cylindrical parts 7, 10 are provided with an outer scanning aperture 12 and inner scanning aperture 13 penetrating the diametral direction in the same positions in the axial direction. The outer cylindrical part 7 is provided with an original insertion port 14 in the circumferential direction of its scanning aperture 12 and the inner cylindrical part 10 is provided with a detaining means for detaining the end of the original inserted from the original insertion port at the circumferential end of its scanning aperture 13. A spacing 26 for mounting the original detained to this detaining means by relatively turning the inner cylindrical part 10 is formed between the outer cylindrical part 7 and the inner cylindrical part 10.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明が属する技術分野】本発明は、カラースキャナー
の画像入力装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image input device for a color scanner.

【０００２】[0002]

【従来の技術】カラースキャナーは、撮影されたカラー
（白黒を含む）フィルムや焼付印画紙等の原稿から色修
正済の分解ネガあるいは分解ポジを作成する機器であ
り、通常、原稿を光学的に走査し、走査によって得られ
た透過光あるいは反射光を検出して電気的信号に変換す
るための画像入力装置と、該画像入力装置から出力され
た電気的信号に種々の演算処理を施すコンピュータと、
該コンピュータから出力された電気的信号を光学的信号
に変換し、フィルムに露光するための画像出力装置から
構成されている。2. Description of the Related Art A color scanner is a device for producing a color-corrected separation negative or separation positive from an original such as a photographed color (including black and white) film or printing paper. An image input device for scanning, converting transmitted light or reflected light obtained by scanning and converting it into an electrical signal, and a computer for performing various arithmetic processes on the electrical signal output from the image input device. ,
It is composed of an image output device for converting an electrical signal output from the computer into an optical signal and exposing the film.

【０００３】前記画像入力装置は、例えば図５に示すよ
うに、原稿１００を取り付けるための回転ドラム１０１
と、該回転ドラム１０１を回転駆動するための回転駆動
部１０２と、回転ドラム１０１の外周面に装着された原
稿１００に白色光を照射するための光照射アーム（図示
省略）と、原稿からの透過光あるいは反射光を検出する
ための走査ヘッド（図示省略）を備えている。前記光照
射アームと走査ヘッドは一対をなして検出手段を構成し
ており、透過光を検出する場合、光照射アームの光照射
部が回転ドラム１０１内に設けられ、光照射部と走査ヘ
ッドとは回転軸心に対して径方向（放射方向）に配置さ
れる。また、両者は軸方向送り装置により横送りされ、
この横送りと回転ドラム１０１の回転とにより、原稿各
部の画像データが光学的に走査され、検出される。The image input device is, for example, as shown in FIG. 5, a rotary drum 101 for mounting an original 100.
A rotary drive unit 102 for rotating the rotary drum 101; a light irradiation arm (not shown) for irradiating the original 100 mounted on the outer peripheral surface of the rotary drum 101 with white light; A scanning head (not shown) for detecting transmitted light or reflected light is provided. The light irradiation arm and the scanning head form a pair to form a detection unit. When detecting transmitted light, the light irradiation unit of the light irradiation arm is provided in the rotary drum 101, and the light irradiation unit and the scanning head are connected to each other. Are arranged in the radial direction (radial direction) with respect to the axis of rotation. Also, both are laterally fed by an axial feed device,
By this lateral feed and the rotation of the rotary drum 101, the image data of each part of the document is optically scanned and detected.

【０００４】前記回転ドラム１０１は、回転駆動部１０
２に着脱自在に連結するための基板部１０３と、該基板
部１０３に回転軸心に対して同心状に設けられたドラム
本体１０４とからなり、前記ドラム本体１０４の外周面
に原稿１００が装着される。ドラム本体１０４は、通
常、透明な硬質プラスチックやガラス等で製作される。
回転駆動部１０２に着脱自在に連結するための連結手段
としては、例えば交換レンズに用いられるバヨネットマ
ウント構造が適用される。The rotary drum 101 includes a rotary drive unit 10
2 is composed of a substrate portion 103 for detachable connection, and a drum body 104 concentrically provided with respect to the rotation axis of the substrate portion 103. The original 100 is mounted on the outer peripheral surface of the drum body 104. To be done. The drum body 104 is usually made of transparent hard plastic, glass, or the like.
A bayonet mount structure used for an interchangeable lens, for example, is applied as a connecting means for detachably connecting to the rotation driving unit 102.

【０００５】原稿は、通常、回転ドラム１０１を回転駆
動部１０２から取り外した状態で、前記ドラム本体１０
４の外周面に直接、あるいは実開平４−１３５７５９号
公報に開示されているような適宜のホルダーを介して、
その周縁部を粘着テープ等により固定することにより装
着される。また、スキャナーの稼働率を向上させるた
め、回転ドラム１０１を複数本準備しておき、１本の回
転ドラム１０１を回転駆動部１０２に連結して画像入力
を行う間に、他の回転ドラム１０１に原稿を予め装着す
ることも行われている。[0005] Normally, the original document has the rotary drum 101 removed from the rotary drive unit 102 and the drum main body 10 described above.
4 directly on the outer peripheral surface or through an appropriate holder as disclosed in Japanese Utility Model Laid-Open No. 4-135759.
It is mounted by fixing its peripheral portion with an adhesive tape or the like. In addition, in order to improve the operation rate of the scanner, a plurality of rotating drums 101 are prepared, and while one rotating drum 101 is connected to the rotation driving unit 102 to input an image, another rotating drum 101 is connected to another rotating drum 101. It is also performed to preload the original.

【０００６】[0006]

【発明が解決しようとする課題】従来のドラム型画像入
力装置では、回転ドラムの回転に際して、ドラム本体の
外周面が面振れすると、色分解の精度が落ちるため、ド
ラム本体や基板部の剛性を高める必要があり、必然的に
回転ドラムの重量が大きくなる。このため、回転ドラム
を回転駆動部に着脱するのに多大の労力を必要とする。In the conventional drum-type image input device, when the outer peripheral surface of the drum main body wobbles during rotation of the rotary drum, the accuracy of color separation decreases, so that the rigidity of the drum main body and the substrate is reduced. It needs to be increased, which inevitably increases the weight of the rotating drum. Therefore, a great deal of labor is required to attach and detach the rotary drum to and from the rotary drive unit.

【０００７】また、原稿をドラム本体の外周面に装着す
るに際しては、原稿あるいはそれを保持したホルダーの
周縁部を粘着テープ等によりドラム本体の外周面に貼り
付ける作業が不可欠であるが、回転ドラムの重量が大き
いため、作業が大変である。また、作業労力を軽減しよ
うとすると、専用の保持器具が必要となる。When mounting the original on the outer peripheral surface of the drum main body, it is essential to attach the peripheral edge of the original or the holder holding the original to the outer peripheral surface of the drum main body with an adhesive tape or the like. The work is difficult because of the large weight. Moreover, in order to reduce the work effort, a dedicated holding device is required.

【０００８】本発明はこのような課題を解決するために
なされたものであり、画像入力装置への原稿の装着を簡
単容易に行うことができ、原稿の装着作業性に優れた画
像入力装置を提供する。The present invention has been made to solve the above problems, and an image input device which can easily and easily attach a document to the image input device and is excellent in workability of attaching the document is provided. provide.

【０００９】[0009]

【課題を解決するための手段】本発明の画像入力装置
は、回転駆動部と、該回転駆動部に連結された原稿保持
部材と、該原稿保持部材に保持された原稿の画像データ
を検出する検出手段とを備えた画像入力装置であって、
前記原稿保持部材は回転駆動部の回転軸に同心状に設け
られた外側円筒部と、該外側円筒部の内側に同心状かつ
相対回動自在に設けられた内側円筒部を備え、前記外側
円筒部及び内側円筒部には軸方向同位置に径方向に貫通
する外側走査開口部及び内側走査開口部が設けられ、前
記外側円筒部又は内側円筒部のいずれか一方の円筒部に
はその走査開口部の周方向に原稿挿入口が設けられ、他
方の円筒部にはその走査開口部の周方向端部であって前
記原稿挿入口から離れた側に前記原稿挿入口から挿入さ
れた原稿の端部を係止するための係止手段が設けられ、
前記係止手段を設けた側の円筒部を前記原稿挿入口から
離れる側へ相対回動させることより前記係止手段に係止
した原稿を前記外側円筒部と内側円筒部との間に装着す
るための隙間が形成されている。An image input apparatus of the present invention detects a rotation drive unit, a document holding member connected to the rotation drive unit, and image data of a document held by the document holding member. An image input device comprising a detection means,
The original holding member includes an outer cylindrical portion concentrically provided on a rotation shaft of a rotation driving unit and an inner cylindrical portion concentrically and relatively rotatably provided inside the outer cylindrical portion. Portion and the inner cylindrical portion are provided with an outer scanning opening portion and an inner scanning opening portion penetrating in the radial direction at the same position in the axial direction, and the scanning opening portion is provided in either one of the outer cylindrical portion or the inner cylindrical portion. An original insertion port is provided in the circumferential direction of the portion, and the other cylindrical portion is the circumferential end of the scanning opening and the end of the original inserted from the original insertion port on the side away from the original insertion port. Locking means for locking the part is provided,
The original locked by the locking means is mounted between the outer cylindrical part and the inner cylindrical part by relatively rotating the cylindrical part on the side provided with the locking means to the side away from the document insertion port. A gap is formed for this.

【００１０】本発明の画像入力装置によると、外側円筒
部又は内側円筒部の内の一方の円筒部（第１円筒部と呼
ぶ）に対して他方の円筒部（第２円筒部と呼ぶ）を相対
回動し、第２円筒部に設けられた係止手段を第１円筒部
に設けられた原稿挿入口に臨むように配置した状態で、
原稿挿入口から原稿を挿入し、原稿端部を前記係止手段
に係止し、第２円筒部を前記原稿挿入口の反対方向、す
なわち原稿挿入口から離れる側に第１円筒部に対して相
対回動すると、係止手段により端部が係止された原稿は
第２円筒部の走査開口部を覆うようにして、第１円筒部
と第２円筒部の隙間に引き込まれつつ装着される。According to the image input device of the present invention, one of the outer cylindrical portion and the inner cylindrical portion (referred to as a first cylindrical portion) is provided with the other cylindrical portion (referred to as a second cylindrical portion). With relative rotation, the locking means provided on the second cylindrical portion is arranged so as to face the document insertion opening provided on the first cylindrical portion,
A document is inserted through the document insertion port, the end of the document is locked by the locking means, and the second cylindrical portion is opposite to the document insertion port, that is, on the side away from the document insertion port with respect to the first cylindrical portion. When relatively rotated, the document whose end is locked by the locking means covers the scanning opening of the second cylindrical portion and is mounted while being drawn into the gap between the first cylindrical portion and the second cylindrical portion. .

【００１１】そして、第１円筒部の走査開口部に第２円
筒部の走査開口部が対向する位置で相対回動を停止する
と、原稿は両走査開口部に露呈した状態となる。この状
態で両円筒部を同時に回転し、走査開口部に露呈した原
稿の各部を走査する。このように、本発明によれば、原
稿を装着する度に、原稿保持部材を回転駆動部に着脱す
る必要がなく、また特別な装着用治具や原稿ホルダーを
用いることなく、原稿を第１円筒部及び第２円筒部の隙
間に、ひいては画像入力装置に簡単容易に取り付けるこ
とができる。Then, when the relative rotation is stopped at a position where the scanning opening of the second cylindrical portion faces the scanning opening of the first cylindrical portion, the document is exposed to both scanning openings. In this state, both cylindrical parts are simultaneously rotated to scan each part of the document exposed at the scanning opening. As described above, according to the present invention, it is not necessary to attach / detach the document holding member to / from the rotation driving unit each time the document is mounted, and the document is first moved without using a special mounting jig or a document holder. It can be easily and easily attached to the gap between the cylindrical portion and the second cylindrical portion, and thus to the image input device.

【００１２】前記画像入力装置において、第２円筒部を
原稿挿入口側に相対回動することより第１円筒部に係止
された原稿の原稿挿入口側周方向端部を原稿挿入口から
取り出すための原稿取り出し手段を第１円筒部の原稿挿
入口に設けることにより、原稿を走査後、第２円筒部を
第１円筒部の原稿挿入口側に相対回動するだけで、原稿
の挿入のみならず、取り出しも容易に行うことができ、
原稿装着作業をより簡便に行うことができる。In the image input device, the second cylindrical portion is rotated relative to the document insertion opening side to take out the circumferential end of the original document locked by the first cylindrical portion from the document insertion opening. By providing the document take-out means for reading the document at the document insertion opening of the first cylindrical portion, the second cylindrical portion is only relatively rotated to the document insertion opening side of the first cylindrical portion after scanning the original, and only the original is inserted. And can be taken out easily,
The document mounting work can be performed more easily.

【００１３】前記第１および第２円筒部は、回転軸心を
軸心として全周に周壁を有する円筒体でなくてもよく、
第１円筒部においては走査開口部及び原稿挿入口が設け
られ、一方第２円筒部においては走査開口部及び係止手
段が設けられる限り、周方向の一部に周壁を有する部分
円筒体でもよい。もっとも、全周に周壁を有する円筒体
で円筒部を構成することにより、加工の容易さ、回転の
安定性が得られ、また反射原稿などの大きな原稿を外周
面に粘着テープ等により装着することができる利点があ
る。The first and second cylindrical portions do not have to be cylindrical bodies having a peripheral wall around the rotation axis as an axis,
As long as the scanning opening and the document insertion opening are provided in the first cylindrical portion, while the scanning opening and the locking means are provided in the second cylindrical portion, a partial cylindrical body having a peripheral wall in a part in the circumferential direction may be used. . However, by constructing the cylindrical part with a cylindrical body that has a peripheral wall all around, easy processing and rotation stability can be obtained, and large originals such as reflective originals should be attached to the outer peripheral surface with adhesive tape or the like. There is an advantage that can be.

【００１４】尚、検出精度の確保の見地から、原稿と走
査ヘッドとの距離が等しいことが必要であり、引いては
回転軸心から原稿各部まで等距離であることが要求され
るが、原稿の各部が走査ヘッドに備えられた読み取り用
レンズの焦点深度の許容範囲内すなわち焦点深度の径方
向の許容限界点を通る２円筒面の間に原稿が存在する限
り、画像データの検出上の問題はない。従って、外側円
筒部の内周面と内側円筒部の外周面とは、その隙間が前
記焦点深度の許容範囲内に入るようにその径が設定され
る。From the viewpoint of ensuring detection accuracy, it is necessary that the distance between the original and the scanning head is the same, and thus it is required that the distance from the rotation axis to each part of the original is equal. As long as an original exists within the permissible range of the depth of focus of the reading lens included in the scanning head, that is, between the two cylindrical surfaces passing through the permissible limit points of the radial depth of focus, there is a problem in detecting image data. There is no. Therefore, the diameters of the inner peripheral surface of the outer cylindrical portion and the outer peripheral surface of the inner cylindrical portion are set so that the clearance is within the allowable range of the depth of focus.

【００１５】[0015]

【発明の実施の形態】図１及び図２は本発明の実施態様
にかかる画像入力装置の原稿保持部材１を示しており、
画像入力装置には該原稿保持部材１を回転駆動するため
の回転駆動部と、原稿保持部材１に装着された原稿の画
像データを走査検出するための検出手段を備えるが、そ
の構成は従来と同様であるので記載省略する。1 and 2 show a document holding member 1 of an image input apparatus according to an embodiment of the present invention.
The image input device is provided with a rotation drive unit for rotating the original document holding member 1 and a detection unit for scanning and detecting image data of the original document mounted on the original document holding member 1. The description is omitted because it is the same.

【００１６】前記原稿保持部材１は、回転駆動部に取り
付けられる外側保持部材３と、該外側保持部材３の内側
に配置され、同心状に回動自在に設けられた内側保持部
材４とからなる。前記外側保持部材３は回転駆動部に連
結される外側基板部６と、該基板部６の外周部に回転軸
心と同心状に固着された円筒状の外側円筒部７を備えて
おり、一方前記内側保持部材４は前記外側基板部６にベ
アリング８を介して連結された内側基板部９と、該内側
基板部９の外周部に回転軸心と同心状に固着された円筒
状の内側円筒部１０を備えている。該内側円筒部１０の
軸方向開放端は前記外側円筒部７の開放端より外方に延
設されており、該延設部を用いて内側円筒部１０を外側
円筒部７に対して容易に回動することができる。尚、回
転駆動部への連結手段としては、従来と同様、バイヨネ
ットマウントを適用することができるが、回転駆動部の
回転軸にキー、ボルト等を用いて直接固定してもよい。
また、上記説明では外側基板部６を回転駆動部に取り付
ける構成としたが、内側基板部６を回転駆動部に取り付
けるようにしてもよい。The document holding member 1 is composed of an outer holding member 3 attached to a rotary drive unit, and an inner holding member 4 arranged inside the outer holding member 3 and concentrically rotatable. . The outer holding member 3 is provided with an outer substrate portion 6 connected to a rotation driving portion, and an outer cylindrical portion 7 having a cylindrical shape that is fixed to the outer peripheral portion of the substrate portion 6 concentrically with the rotation axis. The inner holding member 4 is connected to the outer substrate 6 via a bearing 8 and an inner substrate 9 is a cylindrical inner cylinder that is fixed to the outer periphery of the inner substrate 9 concentrically with the rotation axis. A section 10 is provided. The axially open end of the inner cylindrical portion 10 extends outward from the open end of the outer cylindrical portion 7, and the inner cylindrical portion 10 can be easily attached to the outer cylindrical portion 7 by using the extended portion. It can rotate. A bayonet mount can be applied as the connecting means to the rotary drive unit as in the conventional case, but may be directly fixed to the rotary shaft of the rotary drive unit by using a key, a bolt or the like.
Further, although the outer substrate portion 6 is attached to the rotation driving portion in the above description, the inner substrate portion 6 may be attached to the rotation driving portion.

【００１７】前記外側円筒部７及び内側円筒部１０に
は、軸方向同位置に周方向に沿って方形状の外側走査開
口部１２と内側走査開口部１３が開設されている。これ
らの開口部１２，１３は原稿サイズよりも小さく、検出
手段の走査エリアよりも大きく形成されており、前記外
側走査開口部１２の周方向一端部には該開口部１２より
も広幅の原稿挿入口１４が隣接して開設されており、そ
の端部は傾斜面とされ、該傾斜面に沿って挿入板１５が
付設されている。The outer cylindrical portion 7 and the inner cylindrical portion 10 are provided with a rectangular outer scanning opening 12 and a rectangular inner scanning opening 13 at the same axial position along the circumferential direction. These openings 12 and 13 are formed to be smaller than the document size and larger than the scanning area of the detecting means, and a document having a width wider than the opening 12 is inserted into one end of the outer scanning opening 12 in the circumferential direction. The mouths 14 are opened adjacent to each other, and the ends thereof are inclined surfaces, and the insertion plate 15 is attached along the inclined surfaces.

【００１８】前記内側円筒部１０の外周面には、図３に
示すように、原稿５０よりもやや大きい外周縁を有し、
原稿の厚さよりやや深い原稿装着凹部１７が形成され、
その中央部に前記内側走査開口部１３が開設されてい
る。また、内側円筒部１０の外周面には前記内側走査開
口部１３の軸方向両端の外側で、原稿挿入口１４の軸方
向両端の内側に周方向全周に沿って前記原稿装着凹部１
７より深い底面を有する原稿取り出し溝１８，１８が形
成されている。該原稿取り出し溝１８，１８には、前記
挿入板１５の下端より突設された原稿取り出し爪１９が
挿入される。尚、前記原稿取り出し溝１８，１８は、図
３や図４（Ａ）に示すように内側走査開口部１３が外側
走査開口部１２に対向する位置（原稿走査位置と呼ぶ）
において、少なくとも原稿取り出し爪１９が挿入される
位置から内側走査開口部１３の前端部（原稿挿入口１４
の反対側端部）程度までの間に設ければよい。もっと
も、加工の便宜上、内側円筒部１０の外周全面に渡り形
成してもよい。As shown in FIG. 3, the outer peripheral surface of the inner cylindrical portion 10 has an outer peripheral edge slightly larger than the original 50,
A document mounting recess 17 slightly deeper than the thickness of the document is formed,
The inner scanning opening 13 is opened in the center of the opening. Further, on the outer peripheral surface of the inner cylindrical portion 10, outside the axial ends of the inner scanning opening 13 and inside the axial ends of the document insertion opening 14 along the entire circumferential direction, the document mounting recess 1 is formed.
Document take-out grooves 18, 18 having a bottom surface deeper than 7 are formed. Into the document take-out grooves 18, 18, a document take-out claw 19 protruding from the lower end of the insertion plate 15 is inserted. It should be noted that the document take-out grooves 18, 18 are at positions where the inner scanning opening 13 faces the outer scanning opening 12 as shown in FIG. 3 and FIG.
, The front end of the inner scanning opening 13 (the document insertion opening 14
It should be provided up to about the opposite end). However, for the convenience of processing, it may be formed over the entire outer circumference of the inner cylindrical portion 10.

【００１９】また、図３に示すように、内側円筒部１０
の原稿装着凹部１７上には、内側走査開口部１３の前端
部に原稿５０の周方向前端両部を前記凹部１７の上面と
の間で挟持する保持部２１，２１を備えた係止手段２２
が設けられている。該係止手段２２は板バネ材を用いて
成形されており、両端部が引き起こし状に屈曲形成さ
れ、その下面にゴム等の緩衝材が付設されて前記保持部
２１，２１が形成され、その中央部に原稿前端部に当接
して位置決めするための凸部２３が設けられている。Further, as shown in FIG. 3, the inner cylindrical portion 10
On the document mounting recess 17 of the above, the locking means 22 is provided at the front end of the inner scanning opening 13 with holding portions 21 and 21 for sandwiching both front end portions of the document 50 in the circumferential direction with the upper surface of the recess 17.
Is provided. The locking means 22 is formed by using a leaf spring material, and both ends thereof are bent and bent, and a cushioning material such as rubber is attached to the lower surface thereof to form the holding portions 21 and 21. The central portion is provided with a convex portion 23 for contacting and positioning the front end portion of the document.

【００２０】前記外側円筒部７の内周面には、図４に示
すように、前記保持部２１，２１が原稿５０の前端両部
を挟持した状態で、該保持部２１，２１の上部をバネの
弾発力に抗して収容するための収容溝２４，２４が凹設
されている。尚、前記収容溝２４は、原稿走査位置にお
いて、少なくとも原稿挿入口１４から係止手段２２まで
の間に設ければよい。もっとも、加工の便宜状、外側円
筒部７の内周全面に渡り形成してもよい。As shown in FIG. 4, on the inner peripheral surface of the outer cylindrical portion 7, the upper portions of the holding portions 21 and 21 are held with the holding portions 21 and 21 sandwiching both front end portions of the document 50. Receiving grooves 24, 24 for accommodating against the elastic force of the spring are recessed. The accommodation groove 24 may be provided at least between the document insertion opening 14 and the locking means 22 at the document scanning position. However, for the convenience of processing, it may be formed over the entire inner circumference of the outer cylindrical portion 7.

【００２１】そして、前記外側円筒部７には、図２に示
すように、該外側円筒部７に対して、前記内側円筒部１
０を原稿走査位置に位置決めするための係止手段である
ボールプランジャ２５が設けられている。これと同様、
図４（Ｂ）に示すように、内側円筒部１０に設けられた
係止手段２２の保持部２１の上部が原稿挿入口１４内に
起き上がり、その下面と原稿装着凹部１７の下面との間
に原稿５０の挿入隙間が形成される位置（原稿挿入位置
と呼ぶ）において、前記内側円筒部１０を位置決めする
ためのボールプランジャが別途設けられている。勿論、
内側円筒部１０外周面にはボールプランジャの先端部に
設けられた、弾発状に露出したボールと係合する凹部が
形成される。尚、係止手段としては、前記ボールプラン
ジャ２５に限るものではなく、適宜のネジ部材を用いて
もよい。As shown in FIG. 2, the outer cylindrical portion 7 has the inner cylindrical portion 1 with respect to the outer cylindrical portion 7.
A ball plunger 25, which is a locking means for positioning 0 at the document scanning position, is provided. Similarly,
As shown in FIG. 4 (B), the upper portion of the holding portion 21 of the locking means 22 provided on the inner cylindrical portion 10 rises up inside the document insertion opening 14, and between the lower surface thereof and the lower surface of the document mounting recess 17. A ball plunger for positioning the inner cylindrical portion 10 is separately provided at a position where the insertion gap of the document 50 is formed (referred to as a document insertion position). Of course,
On the outer peripheral surface of the inner cylindrical portion 10, there is formed a concave portion provided at the tip of the ball plunger to engage with the ball that is elastically exposed. The locking means is not limited to the ball plunger 25, and an appropriate screw member may be used.

【００２２】上記実施態様によれば、先ず、図４（Ｂ）
に示すように、内側円筒部１０を回動して原稿挿入位置
に位置決めし、原稿５０を外側円筒部７の原稿挿入口１
４から挿入し、その前端縁が係止手段２２の凸部２３の
前端に当接するまで保持部２１と原稿装着凹部１７の上
面との隙間に差し込む。According to the above embodiment, first, FIG.
As shown in FIG. 2, the inner cylindrical portion 10 is rotated to be positioned at the original insertion position, and the original 50 is placed in the original insertion opening 1 of the outer cylindrical portion 7.
4 and inserts it into the gap between the holding portion 21 and the upper surface of the document mounting concave portion 17 until the front edge thereof comes into contact with the front end of the convex portion 23 of the locking means 22.

【００２３】次いで、内側円筒部１０を保持部２１が原
稿挿入口１４から離れる方向に相対的に回動すると、保
持部２１の上面が外側円筒部７に設けられた収容溝２４
に当接すると共に保持部２１が弾発力に抗して下方に押
し下げられ、原稿５０の前端部が保持部２１の下面と原
稿装着凹部１７の上面との間に挟持される。Then, when the inner cylindrical portion 10 is relatively rotated in the direction in which the holding portion 21 moves away from the document insertion port 14, the upper surface of the holding portion 21 is accommodated in the accommodating groove 24 provided in the outer cylindrical portion 7.
And the holding portion 21 is pushed downward against the elastic force, and the front end of the document 50 is sandwiched between the lower surface of the holding portion 21 and the upper surface of the document mounting recess 17.

【００２４】更に、内側円筒部１０を回動するに従っ
て、原稿５０は原稿装着凹部１７の上面と外側円筒部７
内面との間に形成された原稿装着用の隙間２６に引き込
まれる。内側円筒部１０が図４（Ａ）に示す原稿走査位
置にくると、ボールプランジャ２５により位置決めさ
れ、原稿５０の中央部が外側走査開口部１２と内側走査
開口部１３とに露呈した状態になる。Further, as the inner cylindrical portion 10 is rotated, the original 50 is placed on the upper surface of the original mounting recess 17 and the outer cylindrical portion 7.
It is drawn into a document mounting gap 26 formed between itself and the inner surface. When the inner cylindrical portion 10 reaches the document scanning position shown in FIG. 4A, it is positioned by the ball plunger 25, and the central portion of the document 50 is exposed to the outer scanning opening 12 and the inner scanning opening 13. .

【００２５】そして、回転駆動部を作動させ、両円筒部
７、１０を同時に回転すると共に検出手段により、前記
外側走査開口部１２と内側走査開口部１３とに露呈した
原稿５０の画像データを走査検出する。この際、原稿５
０が直接走査されるので、ニュートンリングが生じるこ
とがない。Then, the rotation driving section is operated to rotate both cylindrical sections 7 and 10 at the same time, and the image data of the document 50 exposed in the outer scanning opening 12 and the inner scanning opening 13 is scanned by the detecting means. To detect. At this time, the original 5
Since 0 is scanned directly, Newton's rings do not occur.

【００２６】走査終了後、内側円筒部１０を原稿挿入口
１４側に相対回動すると、原稿５０の後端部が原稿取り
出し溝１８に挿入された原稿取り出し爪１９の上面に当
接し、更に回動するに従って、原稿５０の後端部は原稿
取り出し爪１９から挿入板１５の上面に沿って上方に排
出される。そして、内側円筒部１０が原稿挿入位置に戻
ると、原稿５０の前端部が前記保持部２１による挟持状
態から開放され、原稿挿入口１４から原稿５０を容易に
取り出すことができる。After the end of scanning, when the inner cylindrical portion 10 is rotated relative to the original insertion port 14 side, the rear end of the original 50 comes into contact with the upper surface of the original take-out pawl 19 inserted in the original take-out groove 18 and is further rotated. As the document moves, the rear end of the document 50 is ejected upward along the upper surface of the insertion plate 15 from the document ejecting claw 19. Then, when the inner cylindrical portion 10 returns to the original insertion position, the front end of the original 50 is released from the holding state by the holding portion 21, and the original 50 can be easily taken out from the original insertion port 14.

【００２７】本発明は上記態様に限るものではなく、例
えば、原稿挿入口は図例のように外側走査開口部１２に
隣接して設ける必要はなく、外側走査開口部１２の周方
向の離れた位置に設けてもよい。また、外側走査開口部
１２や内側走査開口部１３は、図例のように周方向に１
個に限らず複数個設けてもよい。この場合、各内側走査
開口部１３の前端部に原稿端部の係止手段を設ける。原
稿挿入口については、各外側走査開口部１２に隣接して
設けてもよいが、１個でも十分である。更に、軸方向に
サイズの異なる外側走査開口部や内側走査開口部を１個
ないし周方向に複数個並設してもよい。この場合も、各
内側走査開口部の前端部に原稿端部の係止手段を設け
る。The present invention is not limited to the above-described embodiment. For example, the document insertion port does not need to be provided adjacent to the outer scanning opening 12 as shown in the drawing, and the outer scanning opening 12 is separated in the circumferential direction. You may provide in a position. Further, the outer scanning opening 12 and the inner scanning opening 13 are arranged in the circumferential direction by 1 as shown in the figure.
Not limited to individual pieces, a plurality of pieces may be provided. In this case, the front end of each inner scanning opening 13 is provided with a document end locking means. The document insertion port may be provided adjacent to each outer scanning opening 12, but only one is sufficient. Further, one or a plurality of outer scanning openings and inner scanning openings having different sizes in the axial direction may be arranged side by side in the circumferential direction. Also in this case, locking means for the document end is provided at the front end of each inner scanning opening.

【００２８】また、前記態様における内側円筒部１０と
外側円筒部７との構成を逆にして、内側円筒部１０に原
稿取り出し爪を有する挿入板を付設した原稿挿入口や収
容溝を設け、一方、外側円筒部７の内面に係止手段や前
記原稿取り出し溝を設けてもよい。この場合、走査時の
回転により、原稿は遠心力により外側円筒部７の内周面
に張り付いた状態になるので、検出精度が向上する。The configuration of the inner cylindrical portion 10 and the outer cylindrical portion 7 in the above-described mode is reversed, and the inner cylindrical portion 10 is provided with a document insertion port or accommodating groove provided with an insertion plate having a document take-out pawl. A locking means or the document take-out groove may be provided on the inner surface of the outer cylindrical portion 7. In this case, due to the rotation during scanning, the original is stuck to the inner peripheral surface of the outer cylindrical portion 7 due to the centrifugal force, so that the detection accuracy is improved.

【００２９】また、外側円筒部７及び内側円筒部１０
は、前記態様のように、周方向全域にわたって周壁が形
成された円筒体に限らず、周方向の一部において前記外
側走査開口部、原稿挿入口、内側走査開口部、原稿装着
凹部１７等を形成することができる周壁を備えた部分円
筒体でもよい。この場合、内側円筒部側に原稿挿入口を
設けても、原稿の挿入取り出しを内側円筒部の内面側か
ら容易に行うことができる。Further, the outer cylindrical portion 7 and the inner cylindrical portion 10
Is not limited to the cylindrical body in which the peripheral wall is formed over the entire area in the circumferential direction as in the above aspect, but the outer scanning opening, the document insertion opening, the inner scanning opening, the document mounting recess 17 and the like are formed in a part of the circumferential direction. It may be a partial cylinder with a peripheral wall that can be formed. In this case, even if the document insertion port is provided on the inner cylindrical portion side, the document can be easily inserted and removed from the inner surface side of the inner cylindrical portion.

【００３０】[0030]

【発明の効果】本発明の画像入力装置によると、原稿を
原稿挿入口より挿入し、外側円筒部あるいは内側円筒部
を回動するだけで、原稿を両円筒部の間に形成された隙
間に装着することができ、原稿の装着に際し、原稿ホル
ダー保持部材を回転駆動部に着脱する必要がなく、また
原稿ホルダーも不要であり、原稿を原稿保持部材ひいて
は画像入力装置に簡単容易に取り付けることができ、作
業性に優れる。また、原稿取り出し手段を原稿挿入口に
設けることにより、原稿の挿入のみならず、取り出しも
容易に行うことができる。また、外側円筒部及び内側円
筒部を全周に周壁を有する円筒体で構成することによ
り、加工の容易さ、回転の安定性が得られ、また反射原
稿などの大きな原稿を外周面に粘着テープ等により装着
することができる。According to the image input apparatus of the present invention, a manuscript is inserted into the manuscript into the gap formed between the manuscripts only by inserting the manuscript through the manuscript insertion port and rotating the outer cylinder part or the inner cylinder part. The document holder holding member does not need to be attached / detached to / from the rotation driving unit when the document is attached, and the document holder is not necessary. Therefore, the document can be easily and easily attached to the document holding member and thus the image input device. It is possible and has excellent workability. Further, by providing the document take-out means at the document insertion port, not only the document can be inserted but also the document can be taken out easily. Further, by constructing the outer cylindrical portion and the inner cylindrical portion with a cylindrical body having a peripheral wall all around, easiness of processing and rotation stability can be obtained, and a large original such as a reflective original is attached to the outer peripheral surface with an adhesive tape. It can be installed by

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

【図１】本発明実施態様にかかる画像入力装置の原稿保
持部材の外観斜視図である。FIG. 1 is an external perspective view of a document holding member of an image input apparatus according to an embodiment of the present invention.

【図２】同原稿保持部材の半断面図である。FIG. 2 is a half sectional view of the document holding member.

【図３】外側円筒部及び内側円筒部の走査開口部近傍に
おける展開平面図である。FIG. 3 is a developed plan view in the vicinity of a scanning opening of an outer cylindrical portion and an inner cylindrical portion.

【図４】原稿走査位置（Ａ）及び原稿挿入位置（Ｂ）に
おける図３のＡ−Ａ線断面図である。4 is a sectional view taken along the line AA of FIG. 3 at a document scanning position (A) and a document insertion position (B).

【図５】従来のドラム型画像入力装置の主要部の斜視図
である。FIG. 5 is a perspective view of a main part of a conventional drum-type image input device.

【符号の説明】[Explanation of symbols]

１ 原稿保持部材 ３ 外側保持部材 ４ 内側保持部材 ７ 外側円筒部 １０ 内側円筒部 １２ 外側走査開口部 １３ 内側走査開口部 １４ 原稿挿入口 １８ 原稿取り出し溝 １９ 原稿取り出し爪（原稿取り出し手段） ２１ 保持部 ２２ 係止手段 ２６ 隙間 DESCRIPTION OF REFERENCE NUMERALS 1 original holding member 3 outer holding member 4 inner holding member 7 outer cylindrical portion 10 inner cylindrical portion 12 outer scanning opening 13 inner scanning opening 14 original insertion opening 18 original ejection groove 19 original ejection claw (original ejection means) 21 holding portion 22 locking means 26 gap

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 回転駆動部と、該回転駆動部に連結され
た原稿保持部材と、該原稿保持部材に保持された原稿の
画像データを検出する検出手段とを備えた画像入力装置
であって、 前記原稿保持部材は回転駆動部の回転軸に同心状に設け
られた外側円筒部と、該外側円筒部の内側に同心状かつ
相対回動自在に設けられた内側円筒部を備え、前記外側
円筒部及び内側円筒部には軸方向同位置に径方向に貫通
する外側走査開口部及び内側走査開口部が設けられ、 前記外側円筒部又は内側円筒部のいずれか一方の円筒部
にはその走査開口部の周方向に原稿挿入口が設けられ、
他方の円筒部にはその走査開口部の周方向端部であって
前記原稿挿入口から離れた側に前記原稿挿入口から挿入
された原稿の端部を係止するための係止手段が設けら
れ、 前記係止手段を設けた側の円筒部を前記原稿挿入口から
離れる側へ相対回動させることより前記係止手段に係止
した原稿を前記外側円筒部と内側円筒部との間に装着す
るための隙間が形成されていることを特徴とする画像入
力装置。1. An image input device comprising: a rotation driving unit; a document holding member connected to the rotation driving unit; and a detection unit for detecting image data of a document held by the document holding member. The document holding member includes an outer cylindrical portion concentrically provided on a rotation shaft of a rotation driving unit and an inner cylindrical portion concentrically and relatively rotatably provided inside the outer cylindrical portion. The cylindrical portion and the inner cylindrical portion are provided with an outer scanning opening portion and an inner scanning opening portion penetrating in the radial direction at the same position in the axial direction, and the scanning is performed on either one of the outer cylindrical portion or the inner cylindrical portion. A document insertion port is provided in the circumferential direction of the opening,
Locking means for locking the end of the document inserted from the document insertion opening is provided on the other end of the scanning opening in the circumferential direction of the cylindrical portion and away from the document insertion opening. The document locked by the locking means is placed between the outer cylindrical part and the inner cylindrical part by relatively rotating the cylindrical part on the side provided with the locking means to the side away from the document insertion port. An image input device characterized in that a gap for mounting is formed. 【請求項２】 原稿挿入口には原稿係止側の円筒部を原
稿挿入口側に相対回動することより原稿係止側の円筒部
にに係止された原稿の原稿挿入口側周方向端部を原稿挿
入口から取り出すための原稿取り出し手段が設けられて
いる請求項１に記載した画像入力装置。2. A document insertion port side circumferential direction of a document locked in the document locking side cylinder part by relatively rotating the document locking side cylindrical part in the document insertion port toward the document insertion port side. The image input device according to claim 1, further comprising a document take-out means for taking out an end portion from the document insertion port. 【請求項３】 外側円筒部および内側円筒部が全周に周
壁を有する円筒体で形成されている請求項１又は２に記
載した画像入力装置。3. The image input device according to claim 1, wherein the outer cylindrical portion and the inner cylindrical portion are formed of a cylindrical body having a peripheral wall all around.