JPS55123020A - Rotary device - Google Patents
Rotary deviceInfo
- Publication number
- JPS55123020A JPS55123020A JP3034379A JP3034379A JPS55123020A JP S55123020 A JPS55123020 A JP S55123020A JP 3034379 A JP3034379 A JP 3034379A JP 3034379 A JP3034379 A JP 3034379A JP S55123020 A JPS55123020 A JP S55123020A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- armature
- fluid bearing
- small
- projection
- 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
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
PURPOSE: To attain a high-accuracy rotating function and prevent the wear of a bearing part in a rotary device supported by a fluid bearing, by making the diameter of the fluid bearing very small so that the pressure of oil film on the fluid bearing is balanced to the attractive force of a magnet.
CONSTITUTION: An end face 8 of a fixed shaft 1 secured on a base 6 and rotatably engaged in a housing 3 is made flat. A projection 8a of very small diameter is provided in the center of the end face 8a. A spiral groove 7 is provided on the surface of the projection 8a and is a very small groove. A magnet casing 11 is fitted with a bushing 12 on the sleeve part 13 of the housing 3. An armature magnet 9 is housed in the casing 11. The magnet faces an armature which comprises a core 15 and an armature coil 14 in a fixed plate 16 secured on the base 6. A position rotor 17 is attached to the bottom of the sleeve part 13 so that the rotor faces a position stator 10.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54030343A JPS5858527B2 (en) | 1979-03-14 | 1979-03-14 | rotating device |
US06/109,491 US4332428A (en) | 1979-01-16 | 1980-01-04 | Rotary mechanism with axial bearings |
GB8000501A GB2043182B (en) | 1979-01-16 | 1980-01-08 | Bearing assemblies |
FR8000568A FR2446953A1 (en) | 1979-01-16 | 1980-01-11 | ROTATING MECHANISM PROVIDED WITH AXIAL LOADED BEARINGS |
CA343,739A CA1132170A (en) | 1979-01-16 | 1980-01-15 | Rotary mechanism with axial bearings |
DE3001432A DE3001432C2 (en) | 1979-01-16 | 1980-01-16 | Rotary mechanism with a fluid-lubricated axial bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54030343A JPS5858527B2 (en) | 1979-03-14 | 1979-03-14 | rotating device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55123020A true JPS55123020A (en) | 1980-09-22 |
JPS5858527B2 JPS5858527B2 (en) | 1983-12-26 |
Family
ID=12301181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54030343A Expired JPS5858527B2 (en) | 1979-01-16 | 1979-03-14 | rotating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5858527B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57171117A (en) * | 1981-04-15 | 1982-10-21 | Fuji Xerox Co Ltd | Device for preventing moving body from floating up |
JPS585518A (en) * | 1981-07-01 | 1983-01-12 | Nippon Seiko Kk | Dynamic pressure spindle apparatus |
JPS5854223A (en) * | 1981-09-25 | 1983-03-31 | Nippon Seiko Kk | Spindle device of dynamic pressure type |
JPS63176815A (en) * | 1988-01-06 | 1988-07-21 | Nippon Seiko Kk | Dynamic pressure fluid bearing device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5982317U (en) * | 1982-11-25 | 1984-06-04 | 三洋電機株式会社 | Tape recorder muting circuit |
-
1979
- 1979-03-14 JP JP54030343A patent/JPS5858527B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57171117A (en) * | 1981-04-15 | 1982-10-21 | Fuji Xerox Co Ltd | Device for preventing moving body from floating up |
JPS585518A (en) * | 1981-07-01 | 1983-01-12 | Nippon Seiko Kk | Dynamic pressure spindle apparatus |
JPS5854223A (en) * | 1981-09-25 | 1983-03-31 | Nippon Seiko Kk | Spindle device of dynamic pressure type |
JPH033805B2 (en) * | 1981-09-25 | 1991-01-21 | Nippon Seiko Kk | |
JPS63176815A (en) * | 1988-01-06 | 1988-07-21 | Nippon Seiko Kk | Dynamic pressure fluid bearing device |
Also Published As
Publication number | Publication date |
---|---|
JPS5858527B2 (en) | 1983-12-26 |
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