JPH0295012U - - Google Patents
Info
- Publication number
- JPH0295012U JPH0295012U JP142689U JP142689U JPH0295012U JP H0295012 U JPH0295012 U JP H0295012U JP 142689 U JP142689 U JP 142689U JP 142689 U JP142689 U JP 142689U JP H0295012 U JPH0295012 U JP H0295012U
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- polygon mirror
- bearing
- rotor assembly
- magnetic fluid
- 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
- 239000011553 magnetic fluid Substances 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
Landscapes
- Mechanical Optical Scanning Systems (AREA)
Description
第１図及び第２図は、本考案の回転多面鏡駆動
装置の断面図及び部分断面図、第３図及び第４図
は従来の回転多面鏡駆動装置の断面図及び部分断
面図である。
１……回転軸、２……回転部材、３……ロータ
マグネツト、４……回転多面鏡、１３……押え板
、１３ａ……周壁、６ａ，６ｂ……軸受、１１…
…磁性流体シール、１１ｂ……磁性流体、１２…
…吸油材。
1 and 2 are sectional views and partial sectional views of a rotating polygon mirror driving device of the present invention, and FIGS. 3 and 4 are sectional views and partial sectional views of a conventional rotating polygon mirror driving device. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 2... Rotating member, 3... Rotor magnet, 4... Rotating polygon mirror, 13... Pressing plate, 13a... Peripheral wall, 6a, 6b... Bearing, 11...
...Magnetic fluid seal, 11b...Magnetic fluid, 12...
...Oil-absorbing material.
Claims (1)
材に押え板を介して締結される回転多面鏡を有す
るロータ組立と、前記回転軸を回転自在に支持す
る軸受と、前記軸受に隣接するとともに、前記軸
受とロータ組立間に位置する磁性流体シールとか
らなり、磁性流体シールの外方に位置して回転軸
と同心状の周壁を前記ロータ組立に設け、前記周
壁内面に吸油材を備えた回転多面鏡駆動装置。 (2) 前記吸油材がフエルトである請求項１記載
の回転多面鏡駆動装置。[Claims for Utility Model Registration] (1) A rotor assembly having a rotating member fixed to a rotating shaft, a rotating polygon mirror fastened to the rotating member via a presser plate, and rotatably supporting the rotating shaft. a bearing, and a magnetic fluid seal located adjacent to the bearing and between the bearing and the rotor assembly, the rotor assembly having a circumferential wall located outwardly of the magnetic fluid seal and concentric with the axis of rotation; A rotating polygon mirror drive device including an oil-absorbing material on the inner surface of the peripheral wall. (2) The rotating polygon mirror drive device according to claim 1, wherein the oil absorbing material is felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP142689U JPH0295012U (en) | 1989-01-10 | 1989-01-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP142689U JPH0295012U (en) | 1989-01-10 | 1989-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0295012U true JPH0295012U (en) | 1990-07-27 |
Family
ID=31201300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP142689U Pending JPH0295012U (en) | 1989-01-10 | 1989-01-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0295012U (en) |
-
1989
- 1989-01-10 JP JP142689U patent/JPH0295012U/ja active Pending