公开(公告)号：JPH02214076A

公开(公告)日：1990-08-27

申请号：JP3259889

申请日：1989-02-14

Applicant: IBM JAPAN

Inventor： KITABORI HIRONORI ,  KOMATSUZAKI TOSHIAKI ,  MASUDA YOSHIMI

IPC: G11B21/12 ,  G11B19/20 ,  G11B21/22

Abstract: PURPOSE:To hold a head at a landing area by fixing a magnetic material so as to function on an area with strong leakage magnetic flux as moving the head from the data recording area of a disk to the landing area. CONSTITUTION:The head 30 is mounted at one end of an actuator 32, and the actuator 32 is mounted at a base via a shaft 36 in such a way that it can be turned via a shaft 34. And the actuator 32 is turned with respect to the prescribed shaft 34 so as to move the head 30 from the data recording area 22 of the disk 16 to the landing area 26. According to the above action, the magnetic material 90 fixed at the actuator 32 is located at a position where it is moved to the areas 56 and 58 with strong leakage magnetic flux of a magnet. Then, the magnetic material 90 is fixed at a prescribed position on a disk 16 side between the shaft 34 of the actuator 32 and an end part on an opposite side, then, is held at the area 26.

公开(公告)号：JP2004046964A

公开(公告)日：2004-02-12

申请号：JP2002202723

申请日：2002-07-11

Applicant: Ibm Japan Ltd ,  Nhk Spring Co Ltd ,  日本アイ・ビー・エム株式会社 ,  日本発条株式会社

Inventor： TANIZAWA HIROKAZU ,  TOKUMIYA TAKAHIRO ,  KITABORI HIRONORI ,  ISHIKAWA ATSUSHI ,  KATO SEIICHI ,  OKURA TAKESHI

IPC: G11B33/12 ,  G11B25/04

CPC classification number: G11B25/043

Abstract: PROBLEM TO BE SOLVED: To provide a disk driving device case capable of effectively increasing the rigidity of the top cover.
SOLUTION: This disk driving device case 11 is provided with a case main body for housing the carriage 17 of a disk 15, and a top cover 13 for closing the opening of the case main body. In the top cover 13, a rib 30 is formed continuously around a specific area 31 in a full circumferential direction. The specific area 31 is positioned on the rotary shaft 19 of the disk 15. The rib 30 has a wide portion 30a and a narrow portion 30b. The narrow portion 30b is formed between a part corresponding to the top clamp 32 of the rotary shaft 19 and the end of the movable range 33 of a carriage 17.
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