JPS6236290B2 - - Google Patents
Info
- Publication number
- JPS6236290B2 JPS6236290B2 JP4244080A JP4244080A JPS6236290B2 JP S6236290 B2 JPS6236290 B2 JP S6236290B2 JP 4244080 A JP4244080 A JP 4244080A JP 4244080 A JP4244080 A JP 4244080A JP S6236290 B2 JPS6236290 B2 JP S6236290B2
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- mandrel
- magnetic fluid
- hole
- conductive particles
- 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.)
- Expired
Links
- 239000011553 magnetic fluid Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
Landscapes
- Rotational Drive Of Disk (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4244080A JPS56140569A (en) | 1980-04-01 | 1980-04-01 | Grounding device for rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4244080A JPS56140569A (en) | 1980-04-01 | 1980-04-01 | Grounding device for rotating shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56140569A JPS56140569A (en) | 1981-11-02 |
| JPS6236290B2 true JPS6236290B2 (US07122547-20061017-C00273.png) | 1987-08-06 |
Family
ID=12636124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4244080A Granted JPS56140569A (en) | 1980-04-01 | 1980-04-01 | Grounding device for rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56140569A (US07122547-20061017-C00273.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230045650A (ko) * | 2021-09-27 | 2023-04-05 | 한국자동차연구원 | 회전기기 전식 방지 장치 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101194B2 (ja) * | 1986-10-31 | 1994-12-12 | 日本精工株式会社 | 導電摺動装置 |
| US5367416A (en) * | 1992-12-31 | 1994-11-22 | International Business Machines Corporation | Spindle grounding device using magnetic fluid |
-
1980
- 1980-04-01 JP JP4244080A patent/JPS56140569A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230045650A (ko) * | 2021-09-27 | 2023-04-05 | 한국자동차연구원 | 회전기기 전식 방지 장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56140569A (en) | 1981-11-02 |
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