JPH01115755U - - Google Patents

Info

Publication number
JPH01115755U
JPH01115755U JP1179488U JP1179488U JPH01115755U JP H01115755 U JPH01115755 U JP H01115755U JP 1179488 U JP1179488 U JP 1179488U JP 1179488 U JP1179488 U JP 1179488U JP H01115755 U JPH01115755 U JP H01115755U
Authority
JP
Japan
Prior art keywords
optical member
drive pulley
driving device
forming apparatus
image forming
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.)
Granted
Application number
JP1179488U
Other languages
Japanese (ja)
Other versions
JP2531349Y2 (en
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 filed Critical
Priority to JP1988011794U priority Critical patent/JP2531349Y2/en
Publication of JPH01115755U publication Critical patent/JPH01115755U/ja
Application granted granted Critical
Publication of JP2531349Y2 publication Critical patent/JP2531349Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の光学部材駆動装置の一例を示
す要部平面図、第２図は本考案の光学部材駆動装
置を有する電子写真複写機内の構造図、第３図は
本考案の光学部材駆動装置の斜視図、第４図はそ
の動作説明のための要部平面図、第５図および第
６図はそれぞれ従来の光学部材駆動装置の一例を
略示する斜視図である。 ２１……第１光学部材、２２……第２光学部材
、２２ｄ，２２ｅ……移動プーリ、３１，３２…
…ワイヤ、４１，４２……駆動プーリ、４３……
駆動軸、４４……モータ。 FIG. 1 is a plan view of essential parts showing an example of the optical member driving device of the present invention, FIG. 2 is a structural diagram inside an electrophotographic copying machine having the optical member driving device of the present invention, and FIG. 3 is an optical member of the present invention. FIG. 4 is a perspective view of a driving device, FIG. 4 is a plan view of a main part for explaining its operation, and FIGS. 5 and 6 are perspective views each schematically showing an example of a conventional optical member driving device. 21...First optical member, 22...Second optical member, 22d, 22e...Moving pulley, 31, 32...
...Wire, 41, 42...Drive pulley, 43...
Drive shaft, 44...motor.

Claims (1)

【実用新案登録請求の範囲】 １ 原稿載置台上に載置された原稿の画像を感光
体上に露光すべく、光学部材を所定方向へ走査す
る画像形成装置の光学部材駆動装置であり、 それぞれの軸心が露光走査方向と直交するよう
に配設され一体的に正逆回転する一対の駆動プー
リと、 各駆動プーリを正逆回転させる駆動手段と、 各駆動プーリにそれぞれ軸方向に所定の長さに
わたつて螺旋状に巻回されており、各駆動プーリ
から延出する部分が、露光走査方向とは直交する
ように配設された光学部材の各側部に係止されて
いるワイヤと、を具備し、 各ワイヤは、該光学部材の端部が各駆動プーリ
に最も接近した場合には、該光学部材と各駆動プ
ーリとの間で露光走査方向とは平行になり、該光
学部材が各駆動プーリから離れるに連れて、各駆
動プーリ上を相互に離れるように繰り出されるべ
く各駆動プーリにそれぞれ巻回されている事を特
徴とする、 画像形成装置の光学部材駆動装置。 ２ 前記光学部材は、光源および反射鏡を有する
第１光学部材と一対の反射鏡を有する第２光学部
材とを具備する請求項１に記載の画像形成装置の
光学部材駆動装置。 ３ 前記第１光学部材の移動速度が前記第２光学
部材の移動速度の２倍である請求項２に記載の画
像形成装置の光学部材駆動装置。[Scope of Claim for Utility Model Registration] 1. An optical member driving device of an image forming apparatus that scans an optical member in a predetermined direction in order to expose an image of a document placed on a document mounting table onto a photoreceptor, each of which a pair of drive pulleys arranged such that their axes are perpendicular to the exposure scanning direction and rotate integrally in forward and reverse directions; a drive means for rotating each drive pulley in forward and reverse directions; A wire that is spirally wound over its length, and the portion extending from each drive pulley is latched to each side of an optical member disposed perpendicular to the exposure scanning direction. and, each wire is parallel to the exposure scanning direction between the optical member and each drive pulley when the end of the optical member is closest to each drive pulley; An optical member driving device for an image forming apparatus, characterized in that the optical member is wound around each drive pulley so that the member is unwound on each drive pulley so as to move away from each other as the member moves away from each drive pulley. 2. The optical member driving device for an image forming apparatus according to claim 1, wherein the optical member includes a first optical member having a light source and a reflecting mirror, and a second optical member having a pair of reflecting mirrors. 3. The optical member driving device for an image forming apparatus according to claim 2, wherein the moving speed of the first optical member is twice the moving speed of the second optical member.
JP1988011794U 1988-01-29 1988-01-29 Optical member driving device of image forming apparatus Expired - Lifetime JP2531349Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988011794U JP2531349Y2 (en) 1988-01-29 1988-01-29 Optical member driving device of image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988011794U JP2531349Y2 (en) 1988-01-29 1988-01-29 Optical member driving device of image forming apparatus

Publications (2)

Publication Number Publication Date
JPH01115755U true JPH01115755U (en) 1989-08-03
JP2531349Y2 JP2531349Y2 (en) 1997-04-02

Family

ID=31220659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988011794U Expired - Lifetime JP2531349Y2 (en) 1988-01-29 1988-01-29 Optical member driving device of image forming apparatus

Country Status (1)

Country Link
JP (1) JP2531349Y2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156965A (en) * 1982-03-11 1983-09-19 Minolta Camera Co Ltd Optical scanning device
JPS59111632A (en) * 1982-12-18 1984-06-27 Minolta Camera Co Ltd Scanning system driving device of copying machine
JPS6118940A (en) * 1984-07-05 1986-01-27 Konishiroku Photo Ind Co Ltd Optical device of copying machine
JPS6142642A (en) * 1984-08-06 1986-03-01 Canon Inc Original scanner
JPS62201742U (en) * 1986-06-16 1987-12-23

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156965A (en) * 1982-03-11 1983-09-19 Minolta Camera Co Ltd Optical scanning device
JPS59111632A (en) * 1982-12-18 1984-06-27 Minolta Camera Co Ltd Scanning system driving device of copying machine
JPS6118940A (en) * 1984-07-05 1986-01-27 Konishiroku Photo Ind Co Ltd Optical device of copying machine
JPS6142642A (en) * 1984-08-06 1986-03-01 Canon Inc Original scanner
JPS62201742U (en) * 1986-06-16 1987-12-23

Also Published As

Publication number Publication date
JP2531349Y2 (en) 1997-04-02

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