JPH0332864U

JPH0332864U -

Info

Publication number: JPH0332864U
Application number: JP9249289U
Authority: JP
Priority date: 1989-08-08
Filing date: 1989-08-08
Publication date: 1991-03-29

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の平面図、第２図は
第１図の第２走行体プーリの拡大図、第３図は第
１図のシンクロメツシユワイヤーの固定点の構造
例を示し、１は斜視図、２はその平面図、第４図
は差動式ミラー方式の説明図、第５図は第４図の
第１、第２走行体の駆動距離を説明する図、第６
図は従来の複写機の読取部駆動機構を示す斜視図
、第７図は第６図の第２走行体のプーリとワイヤ
ーの巻回状態によるズレを説明する図、第８図は
シンクロメツシユワイヤーの構造を示す一例図、
第９図は第８図のシンクロメツシユワイヤーと係
合するプーリの一例を示す図である。１……第１走行体、１Ａ……鍔部、２……第２
走行体、３……レンズ、４……読取素子（ＣＣＤ
）、５……駆動プーリ、６……アイドルプーリ、
７……ワイヤー、７Ｓ，７Ｓ_１，７Ｓ_２……シン
クロメツシユワイヤー、８……ガイドプレート、
９……モータ、１０……光源、１１……第１ミラ
ー、２０……第２ミラー、２１……第３ミラー、
１２，１７……アイドルローラ、１３……ワイヤ
ー張力調整バネ、１４……固定ピン、１５……固
定ネジ、１６……プレート。 Fig. 1 is a plan view of one embodiment of the present invention, Fig. 2 is an enlarged view of the second running body pulley in Fig. 1, and Fig. 3 is an example of the structure of the fixing point of the synchromesh wire in Fig. 1. 1 is a perspective view, 2 is a plan view thereof, FIG. 4 is an explanatory diagram of the differential mirror system, FIG. 5 is a diagram illustrating the driving distance of the first and second traveling bodies in FIG. 6
The figure is a perspective view showing the reading unit drive mechanism of a conventional copying machine, FIG. 7 is a diagram illustrating misalignment due to the winding state of the pulley and wire of the second traveling body in FIG. 6, and FIG. 8 is a synchronized mesh. An example diagram showing the structure of the wire,
FIG. 9 is a diagram showing an example of a pulley that engages with the synchromesh wire of FIG. 8. 1...first running body, 1A...flange, 2...second
Running body, 3... Lens, 4... Reading element (CCD
), 5... Drive pulley, 6... Idle pulley,
7... wire, 7S, 7S ₁ , 7S ₂ ... synchronized mesh wire, 8... guide plate,
9... Motor, 10... Light source, 11... First mirror, 20... Second mirror, 21... Third mirror,
12, 17...Idle roller, 13...Wire tension adjustment spring, 14...Fixing pin, 15...Fixing screw, 16...Plate.

Claims

[Scope of utility model registration request]

In an image reading device with a fixed document type, a light source of an optical system constituting a document reading section, a first traveling body equipped with a first mirror, and a second traveling body for guiding reading light to a reading element via a condensing lens are used. , a second traveling body mounted with a third mirror, synchromesh wires stretched between the second traveling body pulley, a drive pulley, and an idler pulley, respectively, and a synchromesh wire stretched between the drive pulley and the second traveling body. The suspended synchronized mesh wire is gently curved through two fixing pins implanted at both ends of the first running body, the curved center part is fixed, and both ends of the first running body are fixed. 1. A drive mechanism for an image reading device, wherein the part is tensioned toward the idler pulley by a wire tension adjustment spring.