US 12,334,122 B2
Disk device with ramp mechanism
Yuki Sato, Ota Tokyo (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed by Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed on Sep. 6, 2023, as Appl. No. 18/461,944.
Claims priority of application No. 2023-048331 (JP), filed on Mar. 24, 2023.
Prior Publication US 2024/0321292 A1, Sep. 26, 2024
Int. Cl. G11B 5/54 (2006.01); G11B 5/012 (2006.01); G11B 5/02 (2006.01); G11B 5/105 (2006.01); G11B 5/48 (2006.01); G11B 5/55 (2006.01); G11B 21/22 (2006.01)
CPC G11B 5/012 (2013.01) [G11B 5/02 (2013.01); G11B 5/105 (2013.01); G11B 5/4853 (2013.01); G11B 5/54 (2013.01); G11B 5/5534 (2013.01); G11B 21/22 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A disk device comprising:
a magnetic disk including a recording surface;
a magnetic head configured to read and write information from and to the magnetic disk;
a suspension configured to hold the magnetic head and to move between a load position where the magnetic head is located on the recording surface and an unload position where the magnetic head is located away from the recording surface;
a ramp mechanism including
a ramp member configured to hold the suspension at the unload position, and
a cylindrical member with a through hole, being fixed to the ramp member;
a housing including a first support surface with a screw hole supporting the cylindrical member, the housing accommodating the magnetic disk, the magnetic head, the suspension, and the ramp mechanism; and
a screw including
a screw head, and
a screw shaft extending from the screw head to be fitted into the screw hole through the through hole,
the screw holding the cylindrical member between the screw head and the first support surface,
wherein a contact area between the cylindrical member and the housing is set to larger than a contact area between the cylindrical member and the screw head.