Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1994-11-17
1995-12-26
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9908, G11B 1708
Patent
active
054793041
ABSTRACT:
There is provided a magnetic disk apparatus wherein a hub is rotatably mounted on a hub holder of a bracket via bearings. A stator core and a motor coil are mounted on the outer side of the hub holder, and a yoke and magnet are mounted on the hub, thereby constituting a spindle motor. A magnetic disk is placed on a flange provided at one end portion of the hub. The disk is fixed between the flange and a disk clamper with a spacer interposed between the clamper and the disk. The bracket is formed of aluminum or a plastic material. A reinforcement plate made of an ion-based material or a ceramic material on a bottom surface of the bracket. Since the reinforcement plate is attached to the bracket, the rigidity of the bracket and the rigidity of the motor disk assembly can be increased without increasing the thickness of the bracket.
REFERENCES:
patent: 4488192 (1984-12-01), Treseder
patent: 4814914 (1989-03-01), Hagiwara
patent: 4928029 (1990-05-01), Wright
patent: 4998033 (1991-03-01), Hisabe et al.
patent: 5008573 (1991-04-01), Beppu
patent: 5142173 (1992-08-01), Konno et al.
patent: 5143459 (1992-09-01), Plutt
patent: 5200866 (1993-04-01), Fruge
patent: 5264975 (1993-11-01), Bajorek et al.
patent: 5291358 (1994-03-01), Takahashi
Heinz A. J.
Kabushiki Kaisha Toshiba
LandOfFree
Magnetic disk apparatus having a bracket with reinforcement plat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic disk apparatus having a bracket with reinforcement plat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic disk apparatus having a bracket with reinforcement plat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1373210