JPH0480274U - - Google Patents
Info
- Publication number
- JPH0480274U JPH0480274U JP12190790U JP12190790U JPH0480274U JP H0480274 U JPH0480274 U JP H0480274U JP 12190790 U JP12190790 U JP 12190790U JP 12190790 U JP12190790 U JP 12190790U JP H0480274 U JPH0480274 U JP H0480274U
- Authority
- JP
- Japan
- Prior art keywords
- spindle motor
- ceramic member
- shaft
- rotating circumferential
- balance
- 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
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 1
Description
第１図は本考案を具体化したスピンドルモータ
の一実施例を示す正断面図、第２図は第１図のＡ
−Ａ線断面図、第３図は別例を示す部分断面図で
ある。
７……シヤフト、８……ブツシユ（バランス調
整体）、９……界磁マグネツト、１２……筒状カ
バー（回転周面セラミツク部材）、Ｒ……回転体
。
Fig. 1 is a front cross-sectional view showing an embodiment of a spindle motor embodying the present invention, and Fig. 2 is an A of Fig. 1.
- A sectional view and FIG. 3 are partial sectional views showing another example. 7... Shaft, 8... Bush (balance adjustment body), 9... Field magnet, 12... Cylindrical cover (rotating peripheral ceramic member), R... Rotating body.
Claims (1)
する磁極が異極となるように円環状に配置されて
なる複数の界磁マグネツト９と、 その界磁マグネツト９の外周面を包囲する円筒
状の回転周面セラミツク部材１２と、 その回転周面セラミツク部材１２の両端部にそ
れぞれ配設された一対のバランス調整体８とを有
するスピンドルモータにおいて、 前記バランス調整体８を非磁性金属材料で構成
したことを特徴とするスピンドルモータ。[Claims for Utility Model Registration] A power transmission shaft 7; a plurality of field magnets 9 provided around the shaft 7 and arranged in an annular shape such that adjacent magnetic poles are different polarities; In a spindle motor having a cylindrical rotating circumferential ceramic member 12 surrounding the outer circumferential surface of the field magnet 9, and a pair of balance adjusting bodies 8 disposed at both ends of the rotating circumferential ceramic member 12, respectively. . A spindle motor, wherein the balance adjuster 8 is made of a non-magnetic metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12190790U JP2520416Y2 (en) | 1990-11-20 | 1990-11-20 | Spindle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12190790U JP2520416Y2 (en) | 1990-11-20 | 1990-11-20 | Spindle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0480274U true JPH0480274U (en) | 1992-07-13 |
| JP2520416Y2 JP2520416Y2 (en) | 1996-12-18 |
Family
ID=31869728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12190790U Expired - Lifetime JP2520416Y2 (en) | 1990-11-20 | 1990-11-20 | Spindle motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520416Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011043143A1 (en) * | 2009-10-06 | 2011-04-14 | セイコーインスツル株式会社 | Rotating electric machine, and dental or medical handpiece |
| WO2011043142A1 (en) * | 2009-10-06 | 2011-04-14 | セイコーインスツル株式会社 | Rotating electric machine, and dental or medical handpiece |
| JP2011101579A (en) * | 2009-10-06 | 2011-05-19 | Seiko Instruments Inc | Rotating electric machine, and dental or medical handpiece |
| JP2011101577A (en) * | 2009-10-06 | 2011-05-19 | Seiko Instruments Inc | Rotating electric machine, and dental or medical handpiece |
-
1990
- 1990-11-20 JP JP12190790U patent/JP2520416Y2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011043143A1 (en) * | 2009-10-06 | 2011-04-14 | セイコーインスツル株式会社 | Rotating electric machine, and dental or medical handpiece |
| WO2011043142A1 (en) * | 2009-10-06 | 2011-04-14 | セイコーインスツル株式会社 | Rotating electric machine, and dental or medical handpiece |
| JP2011101579A (en) * | 2009-10-06 | 2011-05-19 | Seiko Instruments Inc | Rotating electric machine, and dental or medical handpiece |
| JP2011101578A (en) * | 2009-10-06 | 2011-05-19 | Seiko Instruments Inc | Rotating electric machine, and dental or medical handpiece |
| JP2011101577A (en) * | 2009-10-06 | 2011-05-19 | Seiko Instruments Inc | Rotating electric machine, and dental or medical handpiece |
| JP2011101580A (en) * | 2009-10-06 | 2011-05-19 | Seiko Instruments Inc | Rotating electric machine, and dental or medical handpiece |
| AT511024B1 (en) * | 2009-10-06 | 2017-12-15 | Seiko Instr Inc | Dynamoelectric machine and handpiece for dental or medical treatment |
| AT511025B1 (en) * | 2009-10-06 | 2017-12-15 | Seiko Instr Inc | Dynamoelectric machine and handpiece for dental or medical treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520416Y2 (en) | 1996-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |