公开(公告)号：SG77178A1

公开(公告)日：2000-12-19

申请号：SG1998000953

申请日：1998-05-06

Applicant: IBM

Inventor： KOYANAGI ICHIROH ,  KOBAYASHI YUJI ,  SAI FUMINORI ,  ALBRECHT THOMAS ROBERT

IPC: G11B5/54 ,  G11B21/12 ,  G11B21/22 ,  G11B21/16 ,  G11B5/48 ,  G11B21/00 ,  G11B5/00

Abstract: The present invention provides an integrally formed ramp that is used for evacuating the suspension arm of a data storage device. The ramp has sliding portions, each having guiding zones and a landing zone. The boundary between the guiding zones and the landing zone is formed parallel to a reference line, so even if the landing portion had a recessed shape, the sliding portion could be molded with a casting mold by pulling out the casting mold in the direction of the reference line. The necessary portion of a support portion which is formed with the same casting mold as the sliding portions is formed so as not to disturb the pulling-out of the casting mold in the direction of the reference line. The integrally molded ramp is high in fabrication accuracy and excellent in defining an accurate loading/unloading position of the suspension arm.

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：JPH1166522A

公开(公告)日：1999-03-09

申请号：JP21228697

申请日：1997-08-06

Applicant: IBM

Inventor： AOYANAGI AKIHIKO ,  DAVID W ALBRECHT ,  SERIZAWA KOJI ,  KOBAYASHI YUJI ,  INOUE HIROO

IPC: G11B5/49 ,  G11B5/54 ,  G11B21/12 ,  G11B21/21

Abstract: PROBLEM TO BE SOLVED: To prevent a head slider assembly fixed to a flexure at a head suspension assembly from pitching and moving unfavorably when a shock is applied to a hard disk drive apparatus. SOLUTION: An apparatus is provided with a head suspension assembly in which tabs 28A are formed in the front part, with a means which is coupled to the rear part of the head suspension assembly in such a way that the front part is moved between the innermost-side position and the outermost-side position in the radial direction of a disk 21, with a lump element 24 which comprises a support face coupled to the tabs 28A when the front part is situated in the outermost-side position and with flexures 29 which are placed on the front part and which are provided with front parts near the front part of the head suspension assembly and with rear parts near the rear part of the head suspension assembly. Then, when the tabs 28A are coupled to the support face of the lump element 24, an extension part 27 which faces surfaces 37 in the front parts of the flexures 29 by keeping a prescribed interval is installed at the lump element 24.

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.