US 11,955,149 B1
Disk device with positioned ramp
Hisashi Hasegawa, Yokohama Kanagawa (JP); Hideki Yamaguchi, Sagamihara Kanagawa (JP); and Sinji Tukada, Kawasaki Kanagawa (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 Mar. 7, 2023, as Appl. No. 18/179,694.
Claims priority of application No. 2022-147873 (JP), filed on Sep. 16, 2022.
Int. Cl. G11B 5/48 (2006.01); G11B 5/54 (2006.01)
CPC G11B 5/4826 (2013.01) [G11B 5/4846 (2013.01); G11B 5/54 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A disk device comprising:
a magnetic disk having a recording surface;
a magnetic head configured to read and write information from and to the magnetic disk;
a suspension holding the magnetic head and configured 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 apart from the recording surface;
a ramp including an attachment tab with a through hole, configured to hold the suspension at the unload position;
a housing that accommodates the magnetic disk, the magnetic head, the suspension, and the ramp, the housing having a support surface with a screw hole to support the attachment tab; and
a screw including
a screw head,
a screw shaft extending from the screw head in a first direction and fitted into the screw hole through the through hole, and
a first contact surface located on the screw head or in-between the screw head and the attachment tab, tapering in the first direction, and contacting the attachment tab, the screw holding the attachment tab in-between the support surface and the first contact surface, wherein
the support surface is provided with a hole,
the ramp includes a pin protruding from the attachment tab in the first direction and fitted into the hole,
the ramp is rotatable around the pin, and
the through hole is spaced apart from the pin in a direction orthogonal to the first direction.