Title:
OPTICAL DISK DRIVE MOTOR AND OPTICAL DISK DRIVE DEVICE INCLUDING THE MOTOR
Document Type and Number:
Japanese Patent JP2013025857
Kind Code:
A
Abstract:
To provide an optical disk drive device capable of preventing increase of floating amount of a rotation part due to a high speed rotation of an optical disk.
The optical disk drive device includes an optical disk drive motor. The optical disk drive motor has a suction magnet disposed between a rotor holder and a bushing. The rotor holder has a projection formed so that a portion of which is overlapped with the suction magnet in an axis direction. The rotor holder and the bushing are formed of a magnetic material and constitute a part of a magnetic circuit. With this, the optical disk drive motor prevents floating of the rotation part and reduces shaft damage.
Inventors:
LU JINGXIU
SUN DEHONG
CHO TOKYOKU
SUN DEHONG
CHO TOKYOKU
Application Number:
JP2012009949A
Publication Date:
February 04, 2013
Filing Date:
January 20, 2012
Export Citation:
Assignee:
NIHON DENSAN KK
International Classes:
G11B19/20
Domestic Patent References:
| JP2008312299A | 2008-12-25 | |||
| JP2006246628A | 2006-09-14 | |||
| JP2002325414A | 2002-11-08 | |||
| JP2005354757A | 2005-12-22 | |||
| JP2001093223A | 2001-04-06 |
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