US 7,468,868 B2
Rotary disk storage device
Takao Suzuki, Kanagawa (Japan); Kohichi Takeuchi, Kanagawa (Japan); Naoaki Kanada, Kanagawa (Japan); and Ichiro Koyanagi, Kanagawa (Japan)
Assigned to Hitachi Global Storage Technologies Netherlands B.V., AZ Amsterdam (Netherlands)
Filed on Apr. 09, 2004, as Appl. No. 10/821,483.
Claims priority of application No. 2003-155284 (JP), filed on May 30, 2003.
Prior Publication US 2004/0240120 A1, Dec. 02, 2004
Int. Cl. G11B 5/55 (2006.01)
U.S. Cl. 360—265.1 14 Claims
OG exemplary drawing
 
1. A rotary disk storage device comprising:
a housing;
a rotary disk recording medium, said rotary disk recording medium having a data area and being rotatable about a spindle shaft supported by a bottom of said housing;
a slider to which a head is attached to read data from said rotary disk recording medium;
a suspension assembly to which said slider is attached;
an actuator assembly to which said suspension assembly is attached, said actuator assembly including a first arm and a second arm and being adapted to turn about a pivot shaft so that said head moves between said data area and a retraction area, said pivot shaft being supported by the bottom of said housing;
a stopper including an elastic member, said elastic member being cantilevered by a support rod and with a magnetic material embedded therein for attracting said actuator assembly, the elastic member configured to engage said first arm and said second arm; and
a swivel stop abutted against an outer surface of said elastic member, said swivel stop being disposed in such a position as prevents rotation of the elastic member centered on a support point of said stopper;
wherein, when either said first arm or said second arm of said actuator assembly comes into abutment against said elastic member, the elastic member undergoes a moment of force so as to restrict an excessive movement of said actuator assembly to an inner or an outer side, and cushions said abutment.