Title:
DISK ROTARY-DRIVING MECHANISM
Document Type and Number:
Japanese Patent JP2000207821
Kind Code:
A
Abstract:
To realize a sure and early automatic aligned state by smoothly performing an automatic aligning operation.
This disk rotary-driving mechanism 10 is constructed in such a manner that an automatic aligning mechanism 12 is provided with a flat cylindrical case body 24 made of a non-magnetic material, two or more balancing members 27, 27,... movably provided inside the internal space (moving space) of the case body, and an attraction magnet 26 for attracting the balancing members in a rotational center side during a stop or low-speed rotation, and formed in a recessed R surface 24a so as to bring the balancing member and the inner peripheral surface of the case body into point-contact with each other.
Inventors:
IKUTA HIROSHI
SOEDA KENTARO
UENO MITSUHIRO
SHISHIDO YUJI
SOEDA KENTARO
UENO MITSUHIRO
SHISHIDO YUJI
Application Number:
JP688499A
Publication Date:
July 28, 2000
Filing Date:
January 13, 1999
Export Citation:
Assignee:
SONY CORP
International Classes:
G11B17/028; G11B19/20; H02K1/22; H02K7/04; H02K21/22; (IPC1-7): G11B19/20; G11B17/028; H02K1/22; H02K7/04
Attorney, Agent or Firm:
Yuji Komatsu
Previous Patent: DISK DISCRIMINATING DEVICE OF DISK REPRODUCING DEVICE
Next Patent: SPINDLE MOTOR CONTROLLER FOR OPTICAL DISK DEVICE
Next Patent: SPINDLE MOTOR CONTROLLER FOR OPTICAL DISK DEVICE