JPH068919U - Rotary polygon mirror drive - Google Patents
Rotary polygon mirror driveInfo
- Publication number
- JPH068919U JPH068919U JP4555792U JP4555792U JPH068919U JP H068919 U JPH068919 U JP H068919U JP 4555792 U JP4555792 U JP 4555792U JP 4555792 U JP4555792 U JP 4555792U JP H068919 U JPH068919 U JP H068919U
- Authority
- JP
- Japan
- Prior art keywords
- polygon mirror
- rotary polygon
- rotary
- mounting surface
- amount
- 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
- Mechanical Optical Scanning Systems (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
(57)【要約】
【目的】 回転多面鏡駆動装置において、回転部材上の
回転多面鏡取り付け面の振れ量改善のため、加工くずが
回転多面鏡取り付け時に取り付け面に残存することを防
ぎ、動的面倒れ量の増大を防ぐ。
【構成】 回転部材4の回転多面鏡取り付け面に回転軸
1より放射状に少なくとも1本以上の溝17を設けること
により、加工くずが回転多面鏡取り付け面に残存しない
ようにし、動的面倒れ量を少なくする。
(57) [Abstract] [Purpose] In a rotary polygon mirror driving device, in order to improve the runout amount of the rotary polygon mirror mounting surface on the rotating member, it is possible to prevent machining scraps from remaining on the mounting surface when the rotary polygon mirror is mounted. Prevent an increase in the amount of trouble. [Structure] By providing at least one groove 17 radially from the rotating shaft 1 on the rotary polygon mirror mounting surface of the rotary member 4, it is possible to prevent machining scraps from remaining on the rotary polygon mirror mounting surface, and to reduce the amount of dynamic surface tilt. To reduce.
Description
【0001】[0001]
本考案は、レーザビームプリンタ等のレーザスキャニングに使用される回転多 面鏡駆動装置に関するものである。 The present invention relates to a rotary polygon mirror driving device used for laser scanning such as a laser beam printer.
【0002】[0002]
近年、レーザビームプリンタやファクシミリ等のレーザ光を走査手段として高 速で回転する多面鏡が広く使用されている。そして、これらの機器の高画質化, 高解像化が要求されるため、回転時の多面鏡の動的面倒れ量は可能なかぎり少な くする必要がある。 2. Description of the Related Art In recent years, polygon mirrors that rotate at high speed have been widely used as scanning means for laser beams such as laser beam printers and facsimiles. Since high image quality and high resolution are required for these devices, it is necessary to minimize the amount of dynamic surface tilt of the polygonal mirror during rotation.
【0003】 図2は従来の回転多面鏡駆動装置の構成を示すものである。図2において、回 転軸1にマグネット2,ヨーク3,回転多面鏡取り付けのための回転部材4が固 定されており、回転部材4に回転多面鏡5がバネ6と押え板7を介して止め輪8 で取り付けられている。ブラケット9には軸受10が嵌挿されており、回転軸1が 回転自在に支持され、予圧バネ11,ワッシャ12,止め輪13で予圧が与えられてい る。なお、プリント基板14には巻線15と位置検出素子16が取り付けられ、ブラケ ット9に固定されている。FIG. 2 shows the configuration of a conventional rotary polygon mirror driving device. In FIG. 2, a magnet 2, a yoke 3, and a rotary member 4 for mounting a rotary polygon mirror are fixed to a rotary shaft 1, and a rotary polygon mirror 5 is fixed to the rotary member 4 via a spring 6 and a holding plate 7. It is attached with a retaining ring 8. A bearing 10 is fitted in the bracket 9, the rotary shaft 1 is rotatably supported, and a preload is applied by a preload spring 11, a washer 12, and a retaining ring 13. A winding 15 and a position detecting element 16 are attached to the printed board 14 and fixed to the bracket 9.
【0004】 以上のように構成された回転多面鏡駆動装置の動作について説明する。巻線15 に電流が流れるとマグネット2との間で駆動力が発生し、回転軸1が回転を始め 、回転多面鏡5が回転し、回転多面鏡面に照射されたレーザ光(図示せず)を走査 させる。この時、回転多面鏡5の動的面倒れ量が大きいと、印字画像に濃淡が生 じ、印字品質の低下をおこしてしまう。通常、外部駆動もしくは自駆動にて回転 部材4を回転させ、回転多面鏡5を取り付ける面を切削または研磨し、取り付け 面の振れ量をおさえることにより動的面倒れ量を少なくしている。The operation of the rotary polygon mirror driving device configured as described above will be described. When an electric current flows through the winding 15, a driving force is generated between the winding 2 and the magnet 2, the rotating shaft 1 starts rotating, the rotating polygon mirror 5 rotates, and the laser beam (not shown) irradiated on the rotating polygon mirror surface. To scan. At this time, if the amount of dynamic surface tilt of the rotary polygon mirror 5 is large, the print image will have a light and shade, and the print quality will deteriorate. Usually, the rotating member 4 is rotated by external driving or self-driving, the surface on which the rotary polygon mirror 5 is mounted is cut or polished, and the amount of shake of the mounting surface is suppressed to reduce the amount of dynamic surface tilt.
【0005】[0005]
【考案が解決しようとする課題】 しかしながら、上記従来の構成では、切削また研磨時の加工くずが取り付け面 上に残りやすく、加工くずを介して回転多面鏡が取り付けられることがあり、結 果的に動的面倒れ量を増大させてしまうという問題点を有していた。 本考案は上記従来の問題を解決するものであり、回転多面鏡取り付け時に、取 り付け面に加工くずが残らず、動的面倒れ量の少ない回転多面鏡駆動装置を提供 することを目的とするものである。[Problems to be Solved by the Invention] However, in the above-described conventional configuration, processing scraps during cutting or polishing are likely to remain on the mounting surface, and the rotary polygon mirror may be mounted through the processing scraps. In addition, there is a problem that the amount of dynamic collapse is increased. The present invention solves the above-mentioned conventional problems, and an object thereof is to provide a rotary polygon mirror driving device in which no machining waste remains on the mounting surface when the rotary polygon mirror is attached and the amount of dynamic surface tilt is small. To do.
【0006】[0006]
本考案は上記目的を達成するために、回転多面鏡駆動装置は、回転部材の回転 多面鏡の取り付け面に、回転軸上より放射状に少なくとも1本以上の溝を設けた 構成にしたものである。 In order to achieve the above-mentioned object, the present invention provides a rotary polygon mirror driving device in which at least one groove is provided radially on the rotary shaft on the surface of the rotary member on which the rotary polygon mirror is mounted. .
【0007】[0007]
したがって本考案によれば、回転部材の回転多面鏡取り付け面の加工時に発生 する加工くずは、すべてが加工時の遠心力等で排出されなくても、放射状の溝に 残って取り付け面には残存しないため、加工くずを介した状態で回転多面鏡を取 り付けるということがなくなり、動的面倒れ量が少なく、かつ安定させることが できる。 Therefore, according to the present invention, the machining waste generated when machining the rotary polygon mirror mounting surface of the rotary member remains in the radial groove and does not remain on the mounting surface even if not all are discharged by centrifugal force during machining. Therefore, it is not necessary to attach the rotary polygon mirror through the processing scrap, and the amount of dynamic surface tilt is small and stable.
【0008】[0008]
以下本考案の一実施例について図面を参照しながら説明する。なお、従来例と 同一部品,同一構成のものについては説明を省略する。 図1は本考案の一実施例における回転多面鏡駆動装置の構成を示したものであ る。図1において、従来例の構成と異なるのは、回転部材4の回転多面鏡取り付 け面に放射状に溝17を設けたことである。 An embodiment of the present invention will be described below with reference to the drawings. It should be noted that description of the same parts and the same configurations as those of the conventional example will be omitted. FIG. 1 shows the structure of a rotary polygon mirror driving device in one embodiment of the present invention. In FIG. 1, the difference from the configuration of the conventional example is that grooves 17 are radially provided on the surface of the rotary member 4 on which the rotary polygon mirror is mounted.
【0009】 以上のような溝を設けることにより、外部駆動もしくは自駆動にて回転部材4 を回転させ、回転多面鏡取り付け面の加工の際、加工くずが加工時の遠心力等で すべて排除できなくても、放射状に設けられた溝に残ることになり、回転多面鏡 取り付け面には残らないため、回転多面鏡取り付け時に加工くずの残存による動 的面倒れ量の増大を防ぐことができる。なお、溝の大きさ,形状,深さ等には特 に制約はなく、また溝を2本以上設けた場合に特に等間隔に配置しなくてもよい 。By providing the groove as described above, the rotary member 4 can be rotated by an external drive or a self drive, and when processing the mounting surface of the rotary polygon mirror, all the processing waste can be eliminated by centrifugal force during processing. Even if it does not exist, it will remain in the grooves radially provided and will not remain on the surface of the rotary polygon mirror to be mounted. Therefore, it is possible to prevent an increase in the amount of dynamic surface tilt due to the remains of machining waste when the rotary polygon mirror is mounted. There are no particular restrictions on the size, shape, depth, etc. of the grooves, and when two or more grooves are provided, they need not be arranged at equal intervals.
【0010】[0010]
本考案は上記実施例から明らかなように、回転部材の回転多面鏡取り付け面に 、回転軸上より放射状に少なくとも1本以上の溝を設けることにより、取り付け 面の加工くずの残存を防ぎ、動的面倒れ量が増大することのない回転多面鏡駆動 装置を実現することができるという効果を有する。 As is apparent from the above-described embodiment, the present invention prevents at least one machining groove on the mounting surface from moving by providing at least one groove radially on the rotating shaft on the surface of the rotary member on which the rotary polygon mirror is mounted. This has the effect of realizing a rotary polygon mirror drive device that does not increase the amount of surface tilt.
【図1】本考案の一実施例における回転多面鏡駆動装置
の断面図および部分拡大図である。FIG. 1 is a sectional view and a partially enlarged view of a rotary polygon mirror driving device according to an embodiment of the present invention.
【図2】従来例の回転多面鏡駆動装置の断面図および部
分拡大図である。FIG. 2 is a sectional view and a partially enlarged view of a conventional rotary polygon mirror driving device.
1…回転軸、 2…マグネット、 3…ヨーク、 4…
回転部材、 5…回転多面鏡、 6…バネ、 7…押え
板、 8,13…止め輪、 9…ブラケット、 10…軸
受、 11…予圧バネ、 12…ワッシャ、 14…プリント
基板、 15…巻線、16…位置検出素子、 17…溝。1 ... Rotation axis, 2 ... Magnet, 3 ... Yoke, 4 ...
Rotating member, 5 ... Rotating polygon mirror, 6 ... Spring, 7 ... Holding plate, 8, 13 ... Retaining ring, 9 ... Bracket, 10 ... Bearing, 11 ... Preload spring, 12 ... Washer, 14 ... Printed circuit board, 15 ... Winding Line, 16 ... Position detection element, 17 ... Groove.
Claims (1)
いて、前記回転部材の回転多面鏡の取り付け面上に、放
射状に少なくとも1本以上の溝を備えたことを特徴とす
る回転多面鏡駆動装置。1. A rotary polygon mirror driving device, comprising: a rotary member to which a rotary polygon mirror is attached, wherein at least one groove is radially provided on a mounting surface of the rotary polygon mirror of the rotary member. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4555792U JPH068919U (en) | 1992-06-30 | 1992-06-30 | Rotary polygon mirror drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4555792U JPH068919U (en) | 1992-06-30 | 1992-06-30 | Rotary polygon mirror drive |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH068919U true JPH068919U (en) | 1994-02-04 |
Family
ID=12722666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4555792U Pending JPH068919U (en) | 1992-06-30 | 1992-06-30 | Rotary polygon mirror drive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH068919U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2018051757A1 (en) * | 2016-09-13 | 2019-02-14 | 三菱電機株式会社 | Galvano scanner and mirror unit |
-
1992
- 1992-06-30 JP JP4555792U patent/JPH068919U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2018051757A1 (en) * | 2016-09-13 | 2019-02-14 | 三菱電機株式会社 | Galvano scanner and mirror unit |
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