Invention Grant
- Patent Title: Spindle motor and disk drive apparatus
- Patent Title (中): 主轴电机和磁盘驱动装置
-
Application No.: US14458465Application Date: 2014-08-13
-
Publication No.: US09064529B2Publication Date: 2015-06-23
- Inventor: Katsuya Takahashi , Yuki Tajima , Kazuhiro Sato , Yuya Saito , Hironori Ando , Masahiro Shiraishi
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Main IPC: G11B19/20
- IPC: G11B19/20 ; G11B17/028 ; G11B17/038
Abstract:
A spindle motor includes a recording disk and a clamper. A cylindrical portion includes a first screw portion positioned in an outer circumferential portion of the cylindrical portion. The clamper includes an annular raised portion configured to be fitted in a through hole of the recording disk. An inner circumferential portion of the clamper includes a second screw portion configured to be screwed to the first screw portion. At least a portion of the second screw portion is positioned in an inner circumferential portion of the annular raised portion. Each of the first screw portion and the second screw portion includes at least one of a screw groove and a screw thread. An axial position of at least a portion of the second screw portion overlaps with an axial position of the recording disk.
Public/Granted literature
- US20150055248A1 SPINDLE MOTOR AND DISK DRIVE APPARATUS Public/Granted day:2015-02-26
Information query
IPC分类:
