JPS63179769U - - Google Patents
Info
- Publication number
- JPS63179769U JPS63179769U JP7032687U JP7032687U JPS63179769U JP S63179769 U JPS63179769 U JP S63179769U JP 7032687 U JP7032687 U JP 7032687U JP 7032687 U JP7032687 U JP 7032687U JP S63179769 U JPS63179769 U JP S63179769U
- Authority
- JP
- Japan
- Prior art keywords
- conductive
- shaft
- hollow portion
- disposed
- storage
- 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
- 230000036316 preload Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案に係る予圧付与構造と帯電防止
構造を有するブラシレスモータの断面図、第２図
は第１図のブラシレスモータをハードデイスク装
置に適用した場合を示す概略図、第３図及び第４
図はそれぞれ従来のブラシレスモータを示す断面
図、第５図Ａ乃至Ｃは従来の予圧付与構造をそれ
ぞれ示す断面図である。
２０……シヤフト、２３，２５……ボールベア
リング、２４……ハブ、３５……蓋体、３６……
導電性接着剤、３７……スラスト板、３８……中
空部、３９……導電性収納部材、３９ａ……収納
部、４０……導電性コイルスプリング、４１……
導電性ボール、４２……カラー部材、４３……予
圧コイルスプリング。
FIG. 1 is a sectional view of a brushless motor having a preload applying structure and an antistatic structure according to the present invention, FIG. 2 is a schematic diagram showing a case where the brushless motor of FIG. 1 is applied to a hard disk device, and FIGS. 4
Each figure is a sectional view showing a conventional brushless motor, and FIGS. 5A to 5C are sectional views each showing a conventional preload applying structure. 20... Shaft, 23, 25... Ball bearing, 24... Hub, 35... Lid, 36...
Conductive adhesive, 37... Thrust plate, 38... Hollow portion, 39... Conductive storage member, 39a... Storage portion, 40... Conductive coil spring, 41...
Conductive ball, 42... Collar member, 43... Preload coil spring.
Claims (1)
リングを介して支持されているロータと、該ロー
タに取付けられて前記シヤフトの一端で第２のボ
ールベアリングを介して支持され、かつ該シヤフ
トの端面と対向する対向部を有するハブとを備え
るモータにおいて、前記シヤフトの一端に設けら
れて前記端面で開口する中空部と、該中空部内に
配されて前記対向部側で開口する収納部を有する
導電性の収納部材と、前記収納部内に配される導
電性バネ部材と、該導電性バネ部材を介して前記
収納部より一部が突出して前記対向部に押し付け
られる導電性ボールと、前記中空部内に前記収納
部材に対して同心的に配され、一端が前記第２の
ボールベアリングの内輪に当接されているカラー
部材と、該カラー部材と前記収納部材との間に配
されて前記カラー部材の他端に押圧力を付与する
予圧コイルスプリングとを含むことを特徴とする
モータ。 ２ 該対向部に導電性接着剤を介して導電性のボ
ール受部材が固着されていることを特徴とする実
用新案登録請求の範囲第１項に記載のモータ。[Claims for Utility Model Registration] 1. A shaft, a rotor supported by the shaft via a first ball bearing, and a rotor attached to the rotor and supported at one end of the shaft via a second ball bearing. and a hub having a facing portion facing an end surface of the shaft, a hollow portion provided at one end of the shaft and opening at the end surface, and a hollow portion disposed within the hollow portion and opening at the facing portion side. an electrically conductive storage member having a storage section, a conductive spring member disposed within the storage section, and a conductive member that partially protrudes from the storage section through the conductive spring member and is pressed against the opposing section. a ball, a collar member disposed within the hollow portion concentrically with respect to the storage member and having one end abutted against the inner ring of the second ball bearing, and between the collar member and the storage member; A motor comprising: a preload coil spring disposed to apply a pressing force to the other end of the collar member. 2. The motor according to claim 1, wherein a conductive ball receiving member is fixed to the facing portion via a conductive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7032687U JPS63179769U (en) | 1987-05-12 | 1987-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7032687U JPS63179769U (en) | 1987-05-12 | 1987-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63179769U true JPS63179769U (en) | 1988-11-21 |
Family
ID=30911864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7032687U Pending JPS63179769U (en) | 1987-05-12 | 1987-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63179769U (en) |
-
1987
- 1987-05-12 JP JP7032687U patent/JPS63179769U/ja active Pending
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