公开(公告)号：JP2002124051A

公开(公告)日：2002-04-26

申请号：JP2000312848

申请日：2000-10-13

Applicant: IBM ,  NOK CORP

Inventor： KOYANAGI ICHIRO ,  KOBAYASHI YUJI ,  TSUAIWEI UU ,  ISHIKAWA TETSUO

IPC: G11B21/12 ,  G11B5/54 ,  G11B21/22

Abstract: PROBLEM TO BE SOLVED: To provide a lamp in which the deformation of the front end edge of a guide part caused by thermal expansion is reduced. SOLUTION: In order to guide suspension arms to housing places 27 by sliding the arms, at least two guide parts 28 individually formed for each suspension arm by using a polymeric material with a small coefficient of friction, and a guide supporting member 71 formed by using a material with a coefficient of thermal expansion smaller than that of the polymeric material of the guide parts 28 to support each guide part 28 in a prescribed position, are provided. The guide supporting member 71 has recessed parts 72 engaging with each guide part 28 in the position which is in the area contacting each guide part 28, does not contact a recording disk and the distance to the front end 29 of each guide part 28 is shortest. Each guide part 28 has a projecting part to support the guide parts 28 in the position suitable for guiding the suspension arms by engaging with the recessed parts 72.

公开(公告)号：JPH08102159A

公开(公告)日：1996-04-16

申请号：JP23191894

申请日：1994-09-27

Applicant: IBM

Inventor： MATSUDA HIROSHI ,  KOYANAGI ICHIRO ,  MUSAZANBII SURIIJIYANSA ,  BIJIYAIESUWAA KANNA ,  SURESHIYU KUMAA

IPC: G11B5/40 ,  G11B5/54 ,  G11B21/02 ,  G11B21/21 ,  G11B33/08 ,  G11B33/12

Abstract: PURPOSE: To eliminate the damage of a magnetic head, magnetic disk and to reduce in thickness of a magnetic disk apparatus by specifying the deflection of a suspension due to the impact. CONSTITUTION: If HDD receives an impact in the state that a magnetic disk 22 is retracted in a shipping zone, a suspension 34 having a magnetic head 36 at the free end is deflected. When the case that the lowermost suspension 34 is deflected is observed, the free end of the suspension 34 is brought into contact with a pin protrusion 50 to prevent the further displacement toward a base 12. The suspension 34 further deflected in this state is not deflected in primary mode (cantilever support mode), but deflected in a secondary mode of both ends support (both ends support mode), and the maximum displacement of the suspension 34 occurs at the intermediate part of the suspension 34. The displacing intermediate part is intruded into the groove 48, and the contact with the base 12 of the intermediate part of the suspension 34 is prevented by the grove 48.

公开(公告)号：JP2002170373A

公开(公告)日：2002-06-14

申请号：JP2000365850

申请日：2000-11-30

Applicant: IBM

Inventor： HIRASAKA YOSHIHIRO ,  KOYANAGI ICHIRO ,  TAKEUCHI KOICHI

IPC: G11B21/02 ,  G11B25/04 ,  G11B33/14

Abstract: PROBLEM TO BE SOLVED: To lessen the burden of positioning work in fitting a top cover with a breather filter and to prevent remaining of an adhesive in removing the breather filter from the top cover. SOLUTION: The breather filter 14 is passed through a through-hole of the top cover 3. A flange 15c is formed at the breather filter 14 and this flange 15c is detained to a chamfer 3b of the top cover 3. The breather filter 14 is fixed to the top cover 3 form the outer peripheral surface side of the top cover 3 by a one-side adhesive tape 19.

公开(公告)号：JP2001229634A

公开(公告)日：2001-08-24

申请号：JP2000031985

申请日：2000-02-09

Applicant: IBM

Inventor： KOYANAGI ICHIRO ,  TSUAIWEI UU

IPC: G11B5/54 ,  G11B21/12 ,  G11B21/22

Abstract: PROBLEM TO BE SOLVED: To provide a lamp which does not give rise to the trouble that the lamp is deformed and shaken by creep formation by resin molding alone without using metallic parts. SOLUTION: The lamp 200 is composed of a mounting section 221 which is formed by using a high-polymer material so as to have screw holes 25 for fixing the lamp to a casing of the information recording disk device by using screws and an arm holding section 222 which is formed by using a high-polymer material of a small coefficient of friction so as to have a stowage section 27 for holding a suspension arm in the state of parting the same from a recording disk and a guide section 28 for facilitating the putting of the suspension arm into and out of the stowage section 27 by oscillating the suspension arm. The mounting section 221 and the arm holding section 222 are integrated by molding these sections before and behind each other.

公开(公告)号：JPH08106761A

公开(公告)日：1996-04-23

申请号：JP23489094

申请日：1994-09-29

Applicant: IBM

Inventor： SERIZAWA KOJI ,  KOYANAGI ICHIRO ,  MATSUDA HIROSHI ,  MATSUZAKI SHINICHI ,  TAKAHASHI HIROSHI

IPC: G11B21/02 ,  G11B5/48 ,  G11B25/04 ,  H05K1/18 ,  H05K3/00

Abstract: PURPOSE: To obtain a low-cost flexible cable structure by improving assembling properties. CONSTITUTION: In a hard disk drive, power and signal are transmitted and received between a carriage having a magnetic head for reading the magnetic information under the positional control on the disk and a card of the lower surface of a base. The movable part 44 of the cable 42 is supported by the carriage, followed up, and a non-movable part 46 is bent to enclose a reinforcing plate 50, and mounted on the base via the late 50. The plate 50 reinforces to connect a carriage connector 84 to the card 40 on the lower surface 60, and to hold the attitude to hold the lateral attitude of the part 44 on the thick surface 64. In summary, the one plate is sufficient.

公开(公告)号：JP2002133743A

公开(公告)日：2002-05-10

申请号：JP2000326417

申请日：2000-10-26

Applicant: IBM

Inventor： KOYANAGI ICHIRO ,  NAKAMOTO TATSUO ,  TAKEUCHI KOICHI

IPC: G11B23/00 ,  G11B17/028 ,  G11B17/038

Abstract: PROBLEM TO BE SOLVED: To provide a disk clamp hardly causing a dislocation on the data positions in a recording track and letting the distribution of the data positions concentrate near a central position even after a temperature cycle is implemented. SOLUTION: The material used for forming a top clamp 31 and a hub 23 is physically stable in all the temperature region in which this information recording disk device is assumed to be used and has such an elastic coefficient that the fastening force required to fix a recording disk 17 when the information recording disk device is used is available from the fastening force for fixing screws 22. The material of at least one of the top clamp 31 and the hub 23 has a coefficient of thermal expansion close to that of the recording disk 17.

公开(公告)号：JPH05314745A

公开(公告)日：1993-11-26

申请号：JP11908792

申请日：1992-05-12

Applicant: IBM

Inventor： KOYANAGI ICHIRO ,  OTSUKI MAKOTO ,  OOSAWA FUMITOMO ,  SATO TAKAYUKI

IPC: G11B25/04 ,  G11B33/02 ,  G11B33/08 ,  G11B33/12

Abstract: PURPOSE: To make a device small and thin, while executing a shock absorbing countermeasure by permitting a flexible cable to constitute an absorbing material at one end side of a fixed disk storage device, to support the fixed disk storage device. CONSTITUTION: The fixed hard magnetic disk storage device 2 is covered by an external box 6 and a connector 7 for executing electric connection to the storage device 2 inside the external box 6 is provided at one end of the external box 6. One end side of the storage device 2 is supported between the connectors 7 and the storage device 2 through the use of the flexible cable 11, and the other end side of the storage device 22 is supported by shock-absorbing materials 12 and 13 having elastic force opposing the elastic force of the flexible cable 11. Thus, the cable 11 is the supporting material of the storage device 2 and, at same time, plays the roll of the shock absorbing material for absorbing a shock added to the storage device 2.

公开(公告)号：JPH10312657A

公开(公告)日：1998-11-24

申请号：JP11665997

申请日：1997-05-07

Applicant: IBM

Inventor： KOYANAGI ICHIRO ,  KOBAYASHI YUJI ,  SAI FUMINORI ,  THOMAS R ALBRECHT

IPC: G11B5/54 ,  G11B21/12 ,  G11B21/22

Abstract: PROBLEM TO BE SOLVED: To provide an integrally molded ramp for withdrawing a suspension arm of the information recording and reproducing device. SOLUTION: The ramp 200 is equipped with sliding parts 220 and 250 formed with guide surfaces 221, 222, 223, 224 and 225 and also a withdrawing surface 226 flat. Since boundaries among the individual guide surfaces and the withdrawing surface are formed parallel to a reference line, even when the withdrawing surface 226 is formed in a depressed shape, mold casting can be performed by drawing a mold in the direction of the reference line. A part formed by the same casting mold as the sliding part 220 and the sliding part 250 out of a supporting part 210 is formed not to be an obstable to drawing the mold in the direction of the reference line. The integrally molded ramp 200 has high manufacturing accuracy, and is excellent in accurate demarcation of a loading/ unloading position of the suspension arm.

公开(公告)号：JPH10302421A

公开(公告)日：1998-11-13

申请号：JP11060097

申请日：1997-04-28

Applicant: IBM

Inventor： AOYANAGI AKIHIKO ,  INOUE HIROO ,  KOYANAGI ICHIRO ,  NAKAMURA TAKASHI ,  AOKI TATSUJI ,  THOMAS R ALBRECHT

IPC: G11B21/22 ,  G11B21/12

Abstract: PROBLEM TO BE SOLVED: To facilitate the controlling of a head arm by reducing shavings of ramps in a head holding mechanism to reduce changes of friction factors of the ramps and to make the speed of the head arm at the time of loading and unloading of a head constant. SOLUTION: In ramps 62 of a ramp block 6, the dried lubrication coating film consisting essentially of polytetrafluorethylene is formed on a surface areas 62g including a contact part 62f with a suspension assembly constituting a head arm. Moreover, the film is also formed on a contact part with the ramps 62 in the tab of the suspension assembly. However, the contact part of the tab slides on the contact part 62f of the ramps at the time of loading and unloading of the head, since the resin coating film is formed on the contact part between the ramps 62 and the tab, the shavings of ramps 62 are reduced.