JPH05197031A - Scanning device - Google Patents
Scanning deviceInfo
- Publication number
- JPH05197031A JPH05197031A JP4007329A JP732992A JPH05197031A JP H05197031 A JPH05197031 A JP H05197031A JP 4007329 A JP4007329 A JP 4007329A JP 732992 A JP732992 A JP 732992A JP H05197031 A JPH05197031 A JP H05197031A
- Authority
- JP
- Japan
- Prior art keywords
- winding cylinder
- cable
- scanned
- scanning
- winding
- 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
Landscapes
- Optical Systems Of Projection Type Copiers (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、物体を直線往復駆動す
る走査装置に関し、特に、画像読取装置，印字プリンタ
等の、比較的に高速で動作し、往復繰返しが頻繁であ
り、しかも機構が比較的にコンパクトな走査装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scanning device for linearly reciprocatingly driving an object, and more particularly to a scanning device such as an image reading device and a printing printer which operates at a relatively high speed and frequently repeats reciprocatingly. It relates to a relatively compact scanning device.
【０００２】[0002]
【従来の技術】例えば、ＣＣＤ素子等の画像読取素子
に、原稿画像（光情報）の横幅長（１ライン）分を投影
して画像信号（画像デ−タ）に変換し、画像投影光学系
およびＣＣＤ素子を原稿の縦長方向に直線走査駆動する
画像読取装置は、画像投影光学系およびＣＣＤ素子を含
む画像読取ユニット，該ユニットを直線往復駆動する走
査機構、および、画像読取ユニットに給電し画像デ−タ
を受取る電気回路を含む電装部で構成され、画像読取ユ
ニットと電装置がフレキシブルな電気ケ−ブルで接続さ
れる。この電気ケ−ブルは電力線および多くの信号線を
含み、通常は平板状（フレキシブル フラットケ−ブ
ル）である。2. Description of the Related Art For example, a horizontal width (1 line) of a document image (optical information) is projected on an image reading device such as a CCD device and converted into an image signal (image data), and an image projection optical system is provided. An image reading apparatus for linearly driving a CCD element in a longitudinal direction of a document is an image reading unit including an image projection optical system and a CCD element, a scanning mechanism for linearly reciprocating the unit, and an image feeding unit for feeding an image. The image reading unit and the electric device are connected by a flexible electric cable, which is composed of an electric component section including an electric circuit for receiving data. This electric cable includes a power line and many signal lines, and is usually flat (flexible flat cable).
【０００３】画像読取ユニットが往復動するので電気ケ
−ブルの一端は同様に往復動するが、他端は電装部（固
定）に固定されている。これにより、電気ケ−ブルが各
種のトラブルを生じ易い。そこで従来、この電気ケ−ブ
ルをその運動にかかわらず整然としかもコンパクトに格
納する様々な設計が提示されている。Since the image reading unit reciprocates, one end of the electric cable likewise reciprocates, but the other end is fixed to the electrical equipment section (fixed). As a result, the electric cable easily causes various troubles. Therefore, various designs have heretofore been proposed for storing this electric cable in an orderly and compact manner regardless of its movement.
【０００４】例えば実公昭57-34509号公報および実開昭
62-46446号公報に開示の電源コ−ド保持装置では、電気
ケ−ブルを動滑車に折り返し張架しこの動滑車を画像走
査用のキャリッジの走査速度の１／２の速度で同方向に
移動させるようにしている。実公昭61-109443号公報に
開示の給電装置では、電気ケ−ブルはスプロケット送り
するための送り孔を全長に有するものとして巻取りドラ
ム内に渦巻ばねの力で引込んで巻取り、画像走査用のキ
ャリッジを駆動するワイヤでスプロケットを廻して電気
ケ−ブルを巻取りドラムより引き出す。For example, Japanese Utility Model Publication No. 57-34509 and Japanese Utility Model Publication
In the power cord holding apparatus disclosed in Japanese Patent Laid-Open No. 62-46446, an electric cable is folded and stretched around a moving pulley, and the moving pulley is moved in the same direction at a speed half the scanning speed of an image scanning carriage. I am trying to move it. In the power feeding device disclosed in Japanese Utility Model Publication No. 61-109443, the electric cable has a feed hole for sending a sprocket in its entire length, and the electric cable is retracted by a force of a spiral spring into a winding drum for image scanning. Turn the sprocket with the wire that drives the carriage of and pull out the electric cable from the winding drum.
【０００５】[0005]
【発明が解決しようとする課題】実公昭57-34509号公報
のものは、キャリッジの走査行程長Ｌの外側に動滑車走
行用のＬ／２の長さを設けなければならず、このため装
置長さが大きくなる。実公昭61-109443号公報のものは
特に、電気ケ−ブルが特別仕様のものとなる上、回転す
べり接触機構を介して電気ケ−ブルの一端を電装部に接
続しなければならず、多くの信号線を用いる用途には適
用し得ない。実開昭62-46446号公報のものは、動滑車を
キャリッジの移動路の下方で移動させるようにしている
ので、装置長さは増大しないが、電気ケ−ブルの一端
（固定端）はキャリッジの走査行程の中央点に設定しな
ければならない。装置をコンパクトにするために電装部
はキャリッジの走査端部側に配置するので、中央点から
更に走査端部側に電気ケ−ブルを連続させなければなら
ず、結局、電気ケ−ブル長はＬでは済まず３Ｌ／２にも
なってしまい、電気ケ−ブルの無駄な配架となる。In the Japanese Utility Model Publication No. 57-34509, the length of L / 2 for running the movable pulley must be provided outside the scanning stroke length L of the carriage, and therefore the device is required. The length increases. In the Japanese Utility Model Publication No. 61-109443, especially, the electric cable has a special specification, and one end of the electric cable has to be connected to the electric equipment section through a rotary sliding contact mechanism, It cannot be applied to the use of the signal line. In Japanese Utility Model Laid-Open No. 62-46446, since the movable pulley is moved below the carriage movement path, the device length does not increase, but one end (fixed end) of the electric cable is a carriage. Must be set at the center point of the scanning stroke of. In order to make the apparatus compact, the electric component is arranged on the scanning end side of the carriage, so the electric cable must be continued from the center point to the scanning end side, and as a result, the electric cable length is It will not be enough with L and it will be 3 L / 2, which is a wasteful arrangement of electric cables.
【０００６】本発明は、走査装置の長さを格別に長くす
ることなく、特別仕様の電気ケ−ブルを必要とすること
なく、しかも電気ケ−ブルを不必要に長くすることな
く、整然と配置し、被走査体の往復移動にもかかわらず
整然とした配置を維持することを目的とする。The present invention provides for a neat arrangement of the scanning device without significantly increasing the length of the scanning device, without the need for a special electrical cable, and without unnecessarily lengthening the electrical cable. However, the object is to maintain an orderly arrangement despite the reciprocating movement of the object to be scanned.
【０００７】[0007]
【課題を解決するための手段】本願の第１番の発明の走
査装置(図1〜3)は、被走査体(2)に接続した接続用ケ−
ブル(13)の長さ方向の略中間部を略Ｓ字形にして固定し
た巻き取り胴(14)；巻き取り胴(14)を、被走査体(2)の
移動方向と同方向に移動自在に支持する支持手段(3,15
〜18)；および、走査駆動手段(4〜11)による被走査体
(2)の駆動により接続用ケ−ブル(13)に加わる、巻き取
り胴(14)より接続用ケ−ブルを巻戻す力、よりも弱い力
の、巻き取り胴(14)にケ−ブルを巻き取る方向の回転力
を、常時巻き取り胴に与える回転駆動手段(16,19〜2
2)；を備えることを特徴とする。The scanning device (FIGS. 1 to 3) of the first invention of the present application is a connecting cable connected to a body (2) to be scanned.
Winding cylinder (14) in which the middle part of the length direction of the bull (13) is fixed in a substantially S shape; the winding cylinder (14) can be moved in the same direction as the scanning target (2). Support means (3,15
To 18); and a scanning object by the scanning drive means (4 to 11)
The force applied to the connection cable (13) by the drive of (2) to rewind the connection cable from the take-up cylinder (14), and a force weaker than the cable to the take-up cylinder (14) The rotation driving means (16, 19 to 2) that constantly applies the rotation force in the winding direction to the winding cylinder.
2); is provided.
【０００８】本願の第２番の発明の走査装置(図4)は、
被走査体(2)に接続した接続用ケ−ブル(13)の長さ方向
の略中間部を略Ｓ字形にして固定した巻き取り胴(14)；
巻き取り胴(14)を、被走査体(2)の移動方向と同方向に
１／２の速度で駆動する直線駆動手段(4,15,23,26,2
7)；および、被走査体(2)の、巻き取り胴(14)より接続
用ケ−ブル(13)を巻戻す方向の移動のときには、巻戻し
方向に、逆方向の移動のときには巻取り方向に、巻き取
り胴を回転駆動する回転駆動手段(15,24,25)；を備える
ことを特徴とする。The scanning device (FIG. 4) of the second invention of the present application is
A winding cylinder (14) in which a connecting cable (13) connected to the object to be scanned (2) is fixed in an approximately S-shaped substantially middle portion in the longitudinal direction;
Linear driving means (4, 15, 23, 26, 2) for driving the winding cylinder (14) in the same direction as the moving direction of the scanned body (2) at a speed of 1/2.
7); and, when the scanning target (2) is moved in the rewinding direction of the connection cable (13) from the winding cylinder (14), it is in the rewinding direction, and when it is in the reverse direction, the rewinding is performed. And a rotation driving means (15, 24, 25) for rotating the winding cylinder in the direction.
【０００９】なお、カッコ内の記号は、図面に示し後述
する実施例の対応要素を示す。Symbols in parentheses indicate corresponding elements in the embodiments shown in the drawings and described later.
【００１０】[0010]
【作用】第１番の発明によれば、被走査体(2)が、接続
ケ−ブル(13)が伸びる方向(例えば復方向)に駆動される
とき、回転駆動手段(16,19〜22)が与える回転力が走査
駆動手段(4〜11)が与える走査駆動力よりも弱いので、
接続ケ−ブル(13)が被走査体(2)により引かれて巻き取
り胴(14)をある方向(例えば時計方向)に回転させながら
巻戻される。すなわち、接続ケ−ブル(13)が引張られて
巻き戻される。接続ケ−ブル(13)が縮む方向(往方向)に
駆動されるときには、回転駆動手段(16,19〜22)による
駆動力は接続ケ-ブル(13)に実質上加わらない。このと
きには、回転駆動手段(16,19〜22)が与える回転力で巻
き取り胴(14)が逆方向(反時計方向)に回転され、接続ケ
−ブル(13)が巻き取り胴(14)に巻き取られる。According to the first aspect of the invention, when the object to be scanned (2) is driven in the direction in which the connection cable (13) extends (for example, the backward direction), the rotation drive means (16, 19-22). Since the rotational force given by) is weaker than the scanning drive force given by the scanning drive means (4 to 11),
The connection cable (13) is pulled by the object to be scanned (2) and is rewound while rotating the winding drum (14) in a certain direction (clockwise, for example). That is, the connection cable (13) is pulled and rewound. When the connection cable (13) is driven in the contracting direction (outward direction), the driving force by the rotation driving means (16, 19-22) is not substantially applied to the connection cable (13). At this time, the winding cylinder (14) is rotated in the opposite direction (counterclockwise) by the rotational force given by the rotation driving means (16, 19 to 22), and the connection cable (13) is rotated by the winding cylinder (14). To be wound up.
【００１１】接続用ケ−ブル(13)は、その長さ方向の略
中間部を略Ｓ字形にして巻き取り胴(14)に固定されてい
るので、巻き取り胴(14)に巻き取られるときには、長さ
方向中間部より右側の部分と左側の部分の、(回転角度/
360度)×2π×巻き取り半径、の長さがそれぞれ巻き取
られる。これにより巻き取り胴(14)は、支持手段(3,15
〜18)が被走査体(2)の移動方向と同方向に巻き取り胴(1
4)を移動自在に支持しているので、被走査体(2)の移動
距離の1/2の距離分移動する。被走査体(2)の走査移動距
離をＬとし、接続用ケ−ブル(13)の略中間部の略Ｓ字形
部分の長さをΔＬとすると、接続ケ−ブル(13)の全長は
Ｌ＋ΔＬで良い。被走査体(2)の移動に伴って巻き取り
胴(14)が該移動の方向に移動するので、この長さＬ＋Δ
Ｌのまま接続ケ−ブル(13)の電装部への固定端を、被走
査体(2)の走査移動範囲の端部に定めることができる。Since the connecting cable (13) is fixed to the winding drum (14) with its substantially middle portion in the lengthwise direction being substantially S-shaped, it is wound around the winding drum (14). Sometimes (rotation angle /
The length of (360 degrees) × 2π × winding radius is wound. As a result, the winding cylinder (14) is supported by the support means (3,15).
~ 18) in the same direction as the moving direction of the body to be scanned (2)
Since 4) is movably supported, it moves by half the moving distance of the scan target (2). Assuming that the scanning movement distance of the object to be scanned (2) is L and the length of the substantially S-shaped portion at the substantially middle portion of the connecting cable (13) is ΔL, the total length of the connecting cable (13) is L + ΔL. Good. Since the take-up cylinder (14) moves in the direction of the movement of the body (2) to be scanned, this length L + Δ
The fixed end of the connection cable (13) to the electrical equipment section can be set to the end of the scanning movement range of the object (2) to be scanned while keeping the L level.
【００１２】したがって接続ケ−ブル(13)の配架のため
に走査装置の長さを格別に長くする必要はなく、特別仕
様の接続ケ−ブルを使用する必要はなく、しかも接続ケ
−ブルを不必要に長くする必要はない。巻き取り胴(14)
により接続ケ−ブル(13)は整然と配置され、被走査体
(2)の往復移動にもかかわらず整然とした配置を維持す
る。Therefore, it is not necessary to lengthen the length of the scanning device for arranging the connection cable (13), it is not necessary to use a special connection cable, and the connection cable is not required. Need not be unnecessarily long. Winding cylinder (14)
The connection cables (13) are arranged neatly by means of
Despite the reciprocating movement of (2), the orderly arrangement is maintained.
【００１３】第２番の発明によれば、被走査体(2)が駆
動されるとき直線駆動手段(4,15,23,26,27)が、巻き取
り胴(14)を、被走査体(2)の移動方向と同方向に１／２
の速度で駆動する。これに加えて回転駆動手段(15,24,2
5)が、巻き取り胴(14)より接続用ケ−ブル(13)を巻戻す
方向の移動のときには、巻戻し方向に、逆方向の移動の
ときには巻取り方向に、巻き取り胴を回転駆動する。According to the second aspect of the invention, when the object (2) to be scanned is driven, the linear driving means (4, 15, 23, 26, 27) causes the take-up cylinder (14) to move the object to be scanned. 1/2 in the same direction as the moving direction of (2)
Drive at the speed of. In addition to this, the rotary drive means (15, 24, 2
5) rotationally drives the winding cylinder in the rewinding direction when the connection cable (13) is rewound from the winding cylinder (14) and in the winding direction when the connection cable (13) is moved in the opposite direction. To do.
【００１４】かくして巻き取り胴(14)の移動距離は、被
走査体(2)の移動距離の1/2となる。接続用ケ−ブル(13)
は、その長さ方向の略中間部を略Ｓ字形にして巻き取り
胴(14)に固定されているので、巻き取り胴(14)に巻き取
られるときには、長さ方向中間部より右側の部分と左側
の部分の、(回転角度/360度)×2π×巻き取り半径、の
長さがそれぞれ巻き取られるので、各巻取長が被走査体
(2)の移動量の半分となる。Thus, the moving distance of the winding cylinder (14) is half the moving distance of the object (2) to be scanned. Connection cable (13)
Is fixed to the winding cylinder (14) with its substantially middle portion in the length direction being substantially S-shaped, so that when it is wound on the winding cylinder (14), the portion on the right side of the middle portion in the length direction The length of (rotation angle / 360 degrees) × 2π × winding radius on the left side and the left side is taken up.
It is half the movement amount of (2).
【００１５】被走査体(2)の走査移動距離をＬとし、接
続用ケ−ブル(13)の略中間部の略Ｓ字形部分の長さをΔ
Ｌとすると、接続ケ−ブル(13)の全長はＬ＋ΔＬで良
い。被走査体(2)の移動に伴って巻き取り胴(14)が該移
動の方向に移動するので、この長さＬ＋ΔＬのまま接続
ケ−ブル(13)の電装部への固定端を、被走査体(2)の走
査移動範囲の端部に定めることができる。When the scanning movement distance of the object to be scanned (2) is L, the length of the substantially S-shaped portion at the substantially middle portion of the connection cable (13) is Δ.
Assuming L, the total length of the connection cable (13) may be L + ΔL. Since the take-up cylinder (14) moves in the direction of the movement as the body (2) to be scanned moves, the fixed end of the connection cable (13) to the electrical equipment section is kept at this length L + ΔL. It can be set at the end of the scanning movement range of the scanning body (2).
【００１６】したがって接続ケ−ブル(13)の配架のため
に走査装置の長さを格別に長くする必要はなく、特別仕
様の接続ケ−ブルを使用する必要はなく、しかも接続ケ
−ブルを不必要に長くする必要はない。巻き取り胴(14)
により接続ケ−ブル(13)は整然と配置され、被走査体
(2)の往復移動にもかかわらず整然とした配置を維持す
る。Therefore, it is not necessary to increase the length of the scanning device for the installation of the connection cable (13), it is not necessary to use a special connection cable, and the connection cable is not required. Need not be unnecessarily long. Winding cylinder (14)
The connection cables (13) are arranged neatly by means of
Despite the reciprocating movement of (2), the orderly arrangement is maintained.
【００１７】本願の各発明の他の目的および特徴は、図
面を参照した以下の実施例の説明より明らかになろう。Other objects and features of each invention of the present application will be apparent from the following description of embodiments with reference to the drawings.
【００１８】[0018]
【実施例】図１に第１番の発明の一実施例の概要を示
す。原稿を載置する原稿台ガラス１の下方には画像読取
ユニット２がある。このユニット２には、図示しない照
明灯，ミラ−，結像光学系およびＣＣＤ素子等が備わっ
ており、ユニット２は、接続ケ−ブル１３を介して、図
示しない電装部から給電され、かつ、原稿画像を読取っ
た画像信号を電装部に送る。画像読取ユニット２はロ−
ラを介してガイドバ−３で、該バ−３が延びる方向に移
動自在に案内されている。画像読取ユニット２にワイヤ
４が固着されており、このワイヤ４がアイドルプ−リ５
〜７，９，１０等および駆動プ−リ８に張架されてい
る。駆動プ−リ８は電気モ−タ１２で回転駆動される。
電気モ−タ１２が正回転すると、ワイヤ４のプ−リ８部
がプ−リ７から９に向かう方向に移動し画像読取ユニッ
ト２はプ−リ９から７に向かう方向に往移動する。この
往移動中に画像読取ユニット２が、ガラス１上の原稿の
画像を電気信号に変換して、接続ケ−ブル１３を介して
図示しない電装部に送る。この画像読取が終了すると、
電気モ−タ１２が逆回転付勢され、画像読取ユニット２
はプ−リ７から９に向かう方向に復移動（リタ−ン）す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an outline of an embodiment of the first invention. Below the original platen glass 1 on which the original is placed, there is an image reading unit 2. The unit 2 is equipped with an illuminating lamp, a mirror, an image forming optical system, a CCD element and the like (not shown). The unit 2 is supplied with power from an electric component (not shown) via a connection cable 13, and An image signal obtained by reading the original image is sent to the electrical component section. The image reading unit 2 is a low
It is guided by a guide bar-3 via a blade so as to be movable in the extending direction of the bar-3. A wire 4 is fixed to the image reading unit 2, and the wire 4 is connected to the idle pulley 5
~ 7, 9, 10 etc. and the drive pulley 8 are suspended. The drive pulley 8 is rotationally driven by the electric motor 12.
When the electric motor 12 rotates forward, the pulley 8 portion of the wire 4 moves in the direction from the pulley 7 to 9, and the image reading unit 2 moves in the direction from the pulley 9 to 7. During this forward movement, the image reading unit 2 converts the image of the original document on the glass 1 into an electric signal and sends it to an electric component section (not shown) via the connection cable 13. When this image reading is completed,
The electric motor 12 is biased in the reverse rotation, and the image reading unit 2
Moves back in the direction from pulley 7 to 9.
【００１９】接続ケ−ブル１３の一端は画像読取ユニッ
ト２に固着され、他端は電装部に固着されている。ケ−
ブル１３の中間部は、巻き取り胴１４を、その中心軸と
平行に直径方向に貫通している。巻き取り胴１４が図１
で時計方向に回転するとケ−ブル１３は巻き戻されて長
くなり、反時計方向に回転すると巻き取られて短くな
る。巻き取り胴１４には軸棒１５が固着されており、こ
の軸棒１５がキャリッジ１６に回転自在に支持されてい
る。キャリッジ１６は、ロ−ラ１７を介して、ガイドバ
−３と平行なもう１つのガイドバ−１８で、ガイドバ−
３が延びる方向に移動自在に案内されており、またガイ
ドバ−３によっても同様に案内されており、ロ−ラ１７
は上方への移動が、ガイドバ−３により阻止される。One end of the connection cable 13 is fixed to the image reading unit 2 and the other end is fixed to the electrical equipment section. Case
An intermediate portion of the bull 13 penetrates the winding cylinder 14 in a diametrical direction parallel to the central axis thereof. The winding cylinder 14 is shown in FIG.
When the cable 13 is rotated clockwise, the cable 13 is unwound and lengthened, and when it is rotated counterclockwise, the cable 13 is wound and shortened. A shaft rod 15 is fixed to the winding cylinder 14, and the shaft rod 15 is rotatably supported by a carriage 16. The carriage 16 is provided with another guide bar 18 parallel to the guide bar 3 via the roller 17 so that the guide bar
3 is movably guided in the extending direction, and is also similarly guided by the guide bar-3.
The upward movement is blocked by the guide bar-3.
【００２０】図２に、接続ケ−ブル１３および巻き取り
胴１４を拡大して示す。図２の（ａ）は平面図、（ｂ）
は（ａ）のＢ−Ｂ線断面図である。ケ−ブル１３のその
長さ方向の中間部は、図２の（ｂ）に示すように折り曲
げられてＳ形に強制されて巻き取り胴１４に固着されて
いる。これにより、巻き取り胴１４が図２の（ｂ）で反
時計方向に回転するとケ−ブル１３の右半分と左半分が
同時に巻き取られる。これに伴って画像読取ユニット２
が左方向に移動するとすると、画像読取ユニット２の移
動量の半分だけ巻き取り胴１４が左方向に移動する。巻
き取り胴１４が図２の（ｂ）で時計方向に回転するとケ
−ブル１３の右半分と左半分が同時に巻き戻される。こ
れに伴って画像読取ユニット２が右方向に移動するとす
ると、画像読取ユニット２の移動量の半分だけ巻き取り
胴１４が右方向に移動する。FIG. 2 is an enlarged view of the connection cable 13 and the winding cylinder 14. 2A is a plan view and FIG. 2B is
FIG. 6B is a sectional view taken along line BB of FIG. An intermediate portion of the cable 13 in the lengthwise direction is bent and forced into an S shape as shown in FIG. 2B, and is fixed to the winding cylinder 14. As a result, when the winding cylinder 14 rotates counterclockwise in FIG. 2B, the right half and the left half of the cable 13 are wound at the same time. Along with this, the image reading unit 2
Is moved to the left, the take-up drum 14 is moved to the left by half the amount of movement of the image reading unit 2. When the winding cylinder 14 rotates clockwise in FIG. 2B, the right half and the left half of the cable 13 are unwound at the same time. When the image reading unit 2 moves to the right along with this, the winding drum 14 moves to the right by half the amount of movement of the image reading unit 2.
【００２１】図３に、図１に示すキャリッジ１６の内部
を拡大して示す。巻き取り胴１４に固着された軸棒１５
は、キャリッジ１６で回転自在に支持されており、軸棒
１５の端部フランジ１９に、ピン２０が立てられてい
る。キャリッジ１６内には円筒状のばねケ−ス２１が収
納されており、このケ−ス２１内に、薄板ばねを渦巻き
状に巻回強制した渦巻ばね２２が入っている。渦巻ばね
２２の外端部はキャリッジ１６に固着されており、内端
部はピン２２に固着されている。この渦巻ばね２２の反
発戻り力による、図２の（ｂ）で反時計方向となる回転
力が軸棒１５を介して巻き取り胴１４に常時加わってい
る。FIG. 3 is an enlarged view of the interior of the carriage 16 shown in FIG. A shaft rod 15 fixed to the winding cylinder 14
Is rotatably supported by a carriage 16, and a pin 20 is erected on an end flange 19 of the shaft rod 15. A cylindrical spring case 21 is accommodated in the carriage 16, and a spiral spring 22 in which a thin leaf spring is spirally wound is contained in the case 21. The outer end of the spiral spring 22 is fixed to the carriage 16, and the inner end thereof is fixed to the pin 22. Due to the repulsive return force of the spiral spring 22, a counterclockwise rotating force in FIG. 2B is constantly applied to the winding cylinder 14 via the shaft rod 15.
【００２２】以上に説明した構造により、電気モ−タ１
２が正回転すると、ワイヤ４の、プ−リ７と８の間の部
分および８と９の間の部分がプ−リ７から９に向かう方
向に移動し画像読取ユニット２はプ−リ９から７に向か
う方向に往移動する。この往移動によりケ−ブル１３の
引張力が無くなるがこれに連動して、渦巻ばね２２の反
発戻り回転力により巻き取り胴１４が反時計方向に回転
駆動され、画像読取ユニット２の往移動距離分の長さの
ケ−ブルが巻き取り胴１４に巻き取られ、巻き取り胴１
４が該往移動距離の半分分、図１で左方向に移動する。
往移動リミット位置にある画像読取ユニット２を、図２
の（ｂ）に二点鎖線で示し、そのときの巻き取り胴１４
の位置を同様に二点鎖線で示す。With the structure described above, the electric motor 1
When 2 rotates forward, the part of the wire 4 between the pulleys 7 and 8 and the portion between 8 and 9 move in the direction from the pulleys 7 to 9, and the image reading unit 2 moves to the pulley 9. It moves forward from 7 to 7. Due to this forward movement, the tensile force of the cable 13 disappears, but in conjunction with this, the repulsive return rotational force of the spiral spring 22 rotationally drives the winding cylinder 14 counterclockwise, and the forward movement distance of the image reading unit 2 is increased. A cable having a length of one minute is taken up by the take-up cylinder 14 and the take-up cylinder 1
4 moves to the left in FIG. 1 by half of the forward movement distance.
The image reading unit 2 at the forward movement limit position is shown in FIG.
(B) is indicated by a chain double-dashed line, and the winding cylinder 14 at that time is shown.
The position of is similarly indicated by a chain double-dashed line.
【００２３】画像読取ユニット２は、図２の（ｂ）に二
点鎖線で示す往移動リミット位置から右方に最大走査距
離Ｌ分戻った位置が、走査スタ−ト位置であり、接続ケ
−ブル１３は、そのＳ字形部の長さをΔＬとすると、略
Ｌ＋ΔＬの長さであり、この実施例では、図示しない電
装部は、画像読取ユニット２の往移動リミット位置の外
側（左側）にあり、そこで接続ケ−ブル１３の左端部が
固定されている。したがって接続ケ−ブル１３の長さ
は、画像読取ユニット２の所要移動距離と同程度で短
く、しかも装置全体の左右長に無駄がない。In the image reading unit 2, the position returned by the maximum scanning distance L to the right from the forward movement limit position shown by the chain double-dashed line in FIG. 2B is the scanning start position and the connection case. When the length of the S-shaped portion of the bull 13 is ΔL, the length of the bull 13 is approximately L + ΔL. In this embodiment, the electrical component (not shown) is located outside (on the left side of) the forward movement limit position of the image reading unit 2. There, the left end of the connection cable 13 is fixed there. Therefore, the length of the connection cable 13 is as short as the required moving distance of the image reading unit 2, and the left and right length of the entire apparatus is not wasted.
【００２４】次に、図４を参照して第２番の発明の一実
施例を説明する。この実施例の大部分は図１に示す実施
例と同様であるが、巻き取り胴１４を画像読取ユニット
２と同方向に１／２の速度で駆動する機構と、巻き取り
胴１４を回転駆動する機構とが異なる。すなわち、巻き
取り胴１４が固着された軸棒１５を回転自在に支持する
キャリッジ２３には、２個のプ−リ２６，２７が回転自
在に装着されており、これらのプ−リ２６，２７に、動
滑車形式で、走査駆動機構（図１のワイヤ４，プ−リ５
〜１１およびモ−タ１２）のワイヤ４が折返し張架され
ている。これによりキャリッジ２３が、画像読取ユニッ
ト（２）と同方向に、その移動速度の１／２の速度で移
動する。走査駆動機構のガイドバ−（３）と平行にラッ
ク２５が配置されており、軸棒１５に固着されたピニオ
ン２４がこのラック２５に噛み合っている。ピニオン２
４の直径は巻き取り胴１４の直径と等しくこれにより、
接続ケ−ブル１３の、巻き取り胴１４から右側の部分と
左側の部分のそれぞれが、キャリッジ２３の移動量（画
像読取ユニット２の移動量の半分）分、巻き取り胴１４
に巻き取られ、又は、巻き取り胴１４から巻き戻され
る。したがって、画像読取ユニット（２）の移動量分の
長さが、巻き取り胴１４に巻き取られ又は巻き取り胴１
４から巻き戻される。Next, an embodiment of the second invention will be described with reference to FIG. Most of this embodiment is the same as the embodiment shown in FIG. 1, except that the winding cylinder 14 is driven in the same direction as the image reading unit 2 at a speed of 1/2, and the winding cylinder 14 is rotationally driven. The mechanism is different. That is, two pulleys 26 and 27 are rotatably mounted on the carriage 23 that rotatably supports the shaft 15 to which the winding cylinder 14 is fixed. These pulleys 26 and 27 are rotatably mounted. In addition, in the moving pulley type, the scanning drive mechanism (wire 4, pulley 5 in FIG. 1)
11 to 11 and the motor 12) are folded and stretched. As a result, the carriage 23 moves in the same direction as the image reading unit (2) at a speed half the speed of the movement. A rack 25 is arranged parallel to the guide bar (3) of the scanning drive mechanism, and a pinion 24 fixed to the shaft 15 meshes with the rack 25. Pinion 2
The diameter of 4 is equal to the diameter of the winding cylinder 14, whereby
Each of the right side portion and the left side portion of the connection cable 13 from the winding cylinder 14 corresponds to the movement amount of the carriage 23 (half the movement amount of the image reading unit 2).
It is taken up by or wound up from the take-up cylinder 14. Therefore, the length corresponding to the movement amount of the image reading unit (2) is wound around the winding cylinder 14 or the winding cylinder 1
It is rewound from 4.
【００２５】なお、走査機構構や電装部の配置によっ
て、巻き取り胴１４の位置を比較的に自由に変更しう
る。例えば、電装部を画像読取ユニット２の走査移動領
域の下方に配置する態様では、図６に示すように巻き取
り胴１４を下方に配置してもよい。 図６に、フレキシ
ブル フラットケ−ブルの、屈曲半径に対する、ケ−ブ
ル内電線の少なくとも一本が破断するまでの屈曲回数の
概要を示す。接続ケ−ブル１３はＳ字形に折り曲げてい
るので、ケ−ブル１３を最大限巻き取り胴１４から巻き
戻す使用態様では、ケ−ブル１３の寿命は該Ｓ字形の曲
率半径で定まが、巻き取り胴１４の周面に常にある程度
ケ−ブル１３が巻回している状態を巻き戻し限度に定め
る場合には、ケ−ブル１３の寿命は巻き取り胴１４の半
径で定まり長くなる。したがって、Ｓ字形の曲率半径を
所要ケ−ブル寿命が得られる程に大きく設計し得ないと
きには、ケ−ブル１３を少く長くして、巻き取り胴１４
の周面に常にある程度ケ−ブル１３が巻回している状態
を巻き戻し限度に定める。The position of the winding drum 14 can be relatively freely changed by the arrangement of the scanning mechanism and the electrical components. For example, in a mode in which the electrical component section is arranged below the scanning movement area of the image reading unit 2, the winding drum 14 may be arranged below as shown in FIG. FIG. 6 shows an outline of the number of times of bending of a flexible flat cable with respect to the bending radius until at least one wire in the cable is broken. Since the connecting cable 13 is bent into an S-shape, the life of the cable 13 is determined by the radius of curvature of the S-shape in a usage mode in which the cable 13 is maximally rewound from the winding cylinder 14. When the condition that the cable 13 is always wound around the winding cylinder 14 to some extent is set as the rewinding limit, the life of the cable 13 is determined by the radius of the winding cylinder 14 and becomes long. Therefore, when the S-shaped radius of curvature cannot be designed to be large enough to obtain the required cable life, the cable 13 is made slightly longer and the winding cylinder 14 is made longer.
The state where the cable 13 is always wound to some extent on the peripheral surface of is defined as the rewinding limit.
【００２６】[0026]
【発明の効果】以上の通り本願の各発明によれば、接続
ケ−ブル(13)の配架のために走査装置の長さを格別に長
くする必要はなく、特別仕様の接続ケ−ブルを使用する
必要はなく、しかも接続ケ−ブルを不必要に長くする必
要はない。巻き取り胴(14)により接続ケ−ブル(13)は整
然と配置され、被走査体(2)の往復移動にもかかわらず
整然とした配置を維持する。As described above, according to the inventions of the present application, it is not necessary to increase the length of the scanning device for the installation of the connection cable (13), and the special connection cable is provided. Need not be used and the connection cable need not be unnecessarily lengthened. The take-up cylinder (14) arranges the connection cables (13) in an orderly manner and maintains the orderly arrangement despite the reciprocating movement of the object (2) to be scanned.
【図１】 本願の第１番の発明の一実施例の概要を示す
斜視図である。FIG. 1 is a perspective view showing an outline of an embodiment of a first invention of the present application.
【図２】 （ａ）は図１に示す接続ケ−ブル１３および
巻き取り胴１４の拡大平面図、（ｂ）は（ａ）のＢ−Ｂ
線断面図である。2A is an enlarged plan view of the connection cable 13 and the winding drum 14 shown in FIG. 1, and FIG. 2B is a BB line of FIG.
It is a line sectional view.
【図３】 図１に示すキャリッジ１６の内部を示す拡大
平面図である。3 is an enlarged plan view showing the inside of the carriage 16 shown in FIG.
【図４】 本願の第２番の発明の一実施例の要部を示す
斜視図である。FIG. 4 is a perspective view showing a main part of an embodiment of a second invention of the present application.
【図５】 図１，４に示す巻き取り胴１４の、他の配置
の一例を示す側面図である。FIG. 5 is a side view showing an example of another arrangement of the winding drum 14 shown in FIGS.
【図６】 フレキシブル フラットケ−ブルの折り曲げ
半径と、電線の破断に至るまでの折り曲げ回数の関係を
示すグラフである。FIG. 6 is a graph showing the relationship between the bending radius of a flexible flat cable and the number of times of bending until the electric wire is broken.
１：原稿台ガラス ２：画像読取ユ
ニット（被走査体） ３：ガイドバ− ４：ワイヤ ５〜１１：プ−リ １２：副走査モ
−タ １３：接続用ケ−ブル １４：巻き取り
胴 １５：軸棒 １６：キャリッ
ジ １７：ロ−ラ １８：ガイドバ
− １９：フランジ ２０：ピン ２１：ばねケ−ス ２２：渦巻ばね ２３：キャリッジ ２４：ピニオン ２５：ラック ２６，２７：プ
−リ1: Platen glass 2: Image reading unit (scanned object) 3: Guide bar 4: Wires 5-11: Pulley 12: Sub-scanning motor 13: Connection cable 14: Winding cylinder 15: Shaft 16: Carriage 17: Roller 18: Guide bar 19: Flange 20: Pin 21: Spring case 22: Spiral spring 23: Carriage 24: Pinion 25: Rack 26, 27: Pulley
Claims (4)
段；を備える走査装置において、 被走査体に接続した接続用ケ−ブルの長さ方向の略中間
部を略Ｓ字形にして固定した巻き取り胴；巻き取り胴
を、被走査体の移動方向と同方向に移動自在に支持する
支持手段；および、 走査駆動手段による被走査体の駆動により接続用ケ−ブ
ルに加わる、巻き取り胴より接続用ケ−ブルを巻戻す
力、よりも弱い力の、巻き取り胴にケ−ブルを巻き取る
方向の回転力を、常時巻き取り胴に与える回転駆動手
段；を備えることを特徴とする走査装置。1. A scanning device comprising a scanning drive means for linearly driving a scanned object in a reciprocating manner, wherein a substantially intermediate portion of a connecting cable connected to the scanned object in a longitudinal direction is fixed in a substantially S shape. Winding cylinder; supporting means for movably supporting the winding cylinder in the same direction as the moving direction of the object to be scanned; and a winding cylinder that is added to the connection cable by driving the object to be scanned by the scanning driving means. It is characterized by further comprising: a rotational driving means for constantly applying to the winding cylinder a rotational force in a direction of winding the cable around the winding cylinder, which is a force for rewinding the connection cable and a force weaker than the connection cable. Scanning device.
イドバ−を含み；回転駆動手段は渦巻ばねを含む、請求
項１記載の走査装置。2. The scanning device according to claim 1, wherein the supporting means includes a guide bar extending in the moving direction of the object to be scanned; and the rotation driving means includes a spiral spring.
段；を備える走査装置において、 被走査体に接続した接続用ケ−ブルの長さ方向の略中間
部を略Ｓ字形にして固定した巻き取り胴；巻き取り胴
を、被走査体の移動方向と同方向に１／２の速度で駆動
する直線駆動手段；および、 被走査体の、巻き取り胴より接続用ケ−ブルを巻戻す方
向の移動のときには、巻戻し方向に、逆方向の移動のと
きには巻取り方向に、巻き取り胴を回転駆動する回転駆
動手段；を備えることを特徴とする走査装置。3. A scanning device comprising a scanning drive means for linearly reciprocating a scanned object, wherein a substantially intermediate portion of a connecting cable connected to the scanned object in a longitudinal direction is fixed in a substantially S shape. Winding cylinder; linear driving means for driving the winding cylinder in the same direction as the moving direction of the scanned object at a speed of 1/2; and rewinding the connection cable of the scanned object from the winding cylinder A scanning device for rotating the winding cylinder in the rewinding direction when moving in the direction, and in the winding direction when moving in the opposite direction;
イヤ，該ワイヤを張架した駆動プ−リおよび該駆動プ−
リを回転駆動する電気モ−タを含み；直線駆動手段は、
被走査体の移動方向に延びるラック，このラックに噛み
合い巻き取り胴に結合されたピニオン，巻き取り胴を回
転自在に装着したキャリッジ、および、該キャリッジに
自由回転自在に装着され前記ワイヤが折返し張架された
プ−リを含む；請求項１記載の走査装置。4. The scanning drive means includes a wire fixed to a body to be scanned, a drive pulley in which the wire is stretched, and the drive pulley.
A linear drive means including an electric motor for rotating the drive;
A rack extending in the moving direction of the object to be scanned, a pinion engaged with the rack and coupled to the winding cylinder, a carriage having the winding cylinder rotatably mounted, and a wire rotatably mounted on the carriage to fold the wire. The scanning device of claim 1 including a suspended pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4007329A JPH05197031A (en) | 1992-01-20 | 1992-01-20 | Scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4007329A JPH05197031A (en) | 1992-01-20 | 1992-01-20 | Scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05197031A true JPH05197031A (en) | 1993-08-06 |
Family
ID=11662923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4007329A Pending JPH05197031A (en) | 1992-01-20 | 1992-01-20 | Scanning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05197031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108186022A (en) * | 2017-12-27 | 2018-06-22 | 江苏苏云医疗器材有限公司 | Foot arch measuring device |
-
1992
- 1992-01-20 JP JP4007329A patent/JPH05197031A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108186022A (en) * | 2017-12-27 | 2018-06-22 | 江苏苏云医疗器材有限公司 | Foot arch measuring device |
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