JPH0455868U

JPH0455868U -

Info

Publication number: JPH0455868U
Application number: JP9872090U
Authority: JP
Priority date: 1990-09-19
Filing date: 1990-09-19
Publication date: 1992-05-13

Description

[Brief explanation of the drawing]

第１図〜第５図は請求項１および３記載の考案
に係る原稿読取装置の一実施例を示す図であり、
第１図はその光学系の要部構成図、第２図はその
駆動系の要部構成図、第３図はその駆動系に用い
られるシンクロメツシユワイヤの拡大図、第４，
５図はその駆動系に用いられるプーリーの拡大図
である。第６図は請求項２記載の考案に係る原稿
読取装置の一実施例のプーリーの構成図である。
第７図は従来の原稿読取装置の構成図である。３１……原稿読取装置、３２……ケース、３３
……コンタクトガラス、３４……光源、３５……
第１ミラー、３６……第２ミラー、３７……第３
ミラー、３８……レンズ、３９……ＣＣＤ、４０
……第２ミラー体、４１……第１走行体、４２…
…第２走行体、４３，４４……プーリー、４５，
４６……シンクロメツシユワイヤ、４７，４８…
…従動プーリー、４９，５０……駆動プーリー、
５１……駆動軸、５２……伝達プーリー、５３…
…モーター、５７，５８……シンクロメツシユワ
イヤ、５９……スプリングワイヤ、６１，６２…
…プーリー。 1 to 5 are diagrams showing an embodiment of the document reading device according to the invention according to claims 1 and 3,
Figure 1 is a block diagram of the main parts of the optical system, Figure 2 is a block diagram of the main parts of the drive system, Figure 3 is an enlarged view of the synchromesh wire used in the drive system,
FIG. 5 is an enlarged view of a pulley used in the drive system. FIG. 6 is a configuration diagram of a pulley of an embodiment of the document reading device according to the second aspect of the invention.
FIG. 7 is a configuration diagram of a conventional document reading device. 31... Original reading device, 32... Case, 33
...Contact glass, 34...Light source, 35...
1st mirror, 36...2nd mirror, 37...3rd mirror
Mirror, 38...Lens, 39...CCD, 40
...Second mirror body, 41...First traveling body, 42...
...Second running body, 43, 44...Pulley, 45,
46... Synchronized mesh wire, 47, 48...
... Driven pulley, 49, 50 ... Drive pulley,
51... Drive shaft, 52... Transmission pulley, 53...
...Motor, 57, 58... Synchromesh wire, 59... Spring wire, 61, 62...
…pulley.

Claims

[Scope of claim for utility model registration] (1) A light source that projects light onto a document, an image reading device that receives reflected light from the document and converts it into electricity, and a group of mirrors that introduces the reflected light from the document into the image reading device. The mirror group has a first mirror body and a second mirror body, the first mirror body introduces the reflected light from the document into the second mirror body, and the second mirror body introduces the reflected light from the document into the second mirror body. The light source is introduced into the image reading means, and the light source and the first
The mirror body is mounted on the first traveling body, the second mirror body is mounted on the second traveling body, and the first traveling body and the second traveling body are differentially moved while maintaining a constant distance from the light source to the image reading means. In the document reading device, pulleys are attached to both widthwise ends of the second running body, a drive shaft having a drive pulley attached is provided at a position facing both widthwise ends of the second running body, and the second running body A synchromesh wire is connected to each pulley attached to the drive shaft and to each drive pulley attached to the drive shaft, and the first running body is connected to the differential position of the synchromesh wire with respect to the second running body. When both ends in the width direction of the body are fixed, and the driving force from the drive source is transmitted to the drive shaft, it is transmitted to the pulleys at both ends of the first traveling body and both ends of the second traveling body via synchromesh wires. A document reading device characterized in that a driving force from a driving source is transmitted at the same time. (2) The document reading device according to claim 1, wherein each pulley attached to both ends in the width direction of the second traveling body is divided into a feed side and a return side on which the synchromesh wire is hung. . (3) One wire spring is hung on each of the synchronized mesh wires that are hung on each pulley attached to both ends in the width direction of the second traveling body, and the wire spring applies the same tension to each of the synchronized mesh wires. 3. The document reading device according to claim 1, wherein: