JPH02132358U

JPH02132358U -

Info

Publication number: JPH02132358U
Application number: JP3916889U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-11-02

Description

[Brief explanation of the drawing]

第１図は本考案にかかるデイスク駆動装置の一
実施例を示す縦断面図、第２図は本考案にかかる
デイスク駆動装置の別の実施例を示す縦断面図、
第３図は本考案にかかるデイスク駆動装置のさら
に別の実施例を示す縦断面図、第４図は本考案に
かかるデイスク駆動装置のさらに別の実施例を示
す縦断面図、第５図は第４図の実施例におけるハ
ブ台の圧入の様子を示す要部の縦断面図、第６図
は先に出願した明細書及び図面に記載したデイス
ク駆動装置の例を示す縦断面図である。４……軸受、２４……ロータヨーク、２７……
ステータコア、３４……ハブ台、４１……軸、５
６，６０，６４……治具、５９，６２，６８……
センター孔、６７……突軸。 FIG. 1 is a longitudinal sectional view showing one embodiment of the disk drive device according to the present invention, FIG. 2 is a longitudinal sectional view showing another embodiment of the disk drive device according to the present invention,
FIG. 3 is a longitudinal cross-sectional view showing still another embodiment of the disk drive device according to the present invention, FIG. 4 is a longitudinal cross-sectional view showing still another embodiment of the disk drive device according to the present invention, and FIG. FIG. 4 is a vertical cross-sectional view of a main part showing how the hub stand is press-fitted in the embodiment, and FIG. 6 is a vertical cross-sectional view showing an example of the disk drive device described in the previously filed specification and drawings. 4... Bearing, 24... Rotor yoke, 27...
Stator core, 34... hub stand, 41... shaft, 5
6, 60, 64... jig, 59, 62, 68...
Center hole, 67... protruding shaft.

Claims

[Claims for Utility Model Registration] 1. A rotor arranged opposite to the stator and urged to rotate, a shaft provided at the center of this rotor, and a disk fitted and fixed to the tip side of this shaft. In a disk drive device comprising a hub stand and a bearing that rotatably supports the shaft, an engagement portion with a jig is formed extending in the axial direction on the base end side of the shaft. A disk drive device characterized by: 2. The disk drive device according to claim 1, wherein the engagement portion with the jig is an inner circumferential surface of a center hole extending from the proximal end to the distal end of the shaft. 3. The disk drive device according to claim 1, wherein the engaging portion with the jig is an outer circumferential surface of a protruding shaft portion formed coaxially with the shaft core on the base end side of the shaft. 4. The bearing according to claim 1, wherein the bearing is a shaft-integrated bearing in which balls are respectively dropped into two rows of circumferential grooves formed apart from each other on the shaft, and two outer rings are fitted to press the balls from the outside. disk drive.