JPH0461474U - - Google Patents
Info
- Publication number
- JPH0461474U JPH0461474U JP10544490U JP10544490U JPH0461474U JP H0461474 U JPH0461474 U JP H0461474U JP 10544490 U JP10544490 U JP 10544490U JP 10544490 U JP10544490 U JP 10544490U JP H0461474 U JPH0461474 U JP H0461474U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- flange portion
- spindle motor
- annular groove
- hard disk
- 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
- Permanent Magnet Type Synchronous Machine (AREA)
Description
第１図は本考案の一実施例に係るハードデイス
ク用スピンドルモータを示す断面図、第２図は第
１図の要部拡大図、第３図は弾性部材を示す平面
図、第４図は弾性部材の他の実施例を示す平面図
、第５図は弾性部材のさらに他の実施例を示す平
面図、第６図は従来のスピンドルモータを示す断
面図、第７図は他の従来例を示す断面図である。
２０……ステータ、２２……ロータ、２４……
磁気デイスク、２６……弾性部材、４０……外周
部、４２……フランジ部、４４……環状の溝部、
４６……溝部の上面、４８……傾斜部。
Fig. 1 is a sectional view showing a hard disk spindle motor according to an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a plan view showing an elastic member, and Fig. 4 is an elastic member. FIG. 5 is a plan view showing another example of the elastic member, FIG. 6 is a sectional view showing a conventional spindle motor, and FIG. 7 is a plan view showing another example of the elastic member. FIG. 20...Stator, 22...Rotor, 24...
Magnetic disk, 26... Elastic member, 40... Outer circumferential portion, 42... Flange portion, 44... Annular groove portion,
46... Upper surface of the groove portion, 48... Inclined portion.
Claims (1)
デイスク下面側を受けとめるフランジ部を形成し
、 このフランジ部に、前記磁気デイスクを押付け
固定するハードデイスク用スピンドルモータにお
いて、 前記フランジ部の上方で磁気デイスクの厚みよ
りも若干低い位置のロータ外周部に、上面が中心
に向かつて下降傾斜する環状の溝部を形成すると
共に、 前記環状の溝部に前記磁気デイスク上面を押圧
する弾性部材を係合させることを特徴とするハー
ドデイスク用スピンドルモータ。[Claims for Utility Model Registration] A spindle motor for a hard disk, in which a flange portion for receiving the lower surface of a magnetic disk is formed on the outer periphery of a rotor rotating on a stator, and the magnetic disk is pressed and fixed to the flange portion, comprising: An annular groove is formed in the rotor outer circumferential portion at a position slightly lower than the thickness of the magnetic disk above the flange portion, and the upper surface slopes downward toward the center, and elasticity is provided to press the upper surface of the magnetic disk into the annular groove. A hard disk spindle motor characterized by engaging members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10544490U JPH0461474U (en) | 1990-10-05 | 1990-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10544490U JPH0461474U (en) | 1990-10-05 | 1990-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461474U true JPH0461474U (en) | 1992-05-26 |
Family
ID=31851130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10544490U Pending JPH0461474U (en) | 1990-10-05 | 1990-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016086558A (en) * | 2014-10-27 | 2016-05-19 | ミネベア株式会社 | Spindle motor |
-
1990
- 1990-10-05 JP JP10544490U patent/JPH0461474U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016086558A (en) * | 2014-10-27 | 2016-05-19 | ミネベア株式会社 | Spindle motor |
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