公开(公告)号：DE3168549D1

公开(公告)日：1985-03-14

申请号：DE3168549

申请日：1981-01-08

Applicant: IBM

Inventor： WANEK DONALD JOHN

IPC: G11B17/32 ,  G11B5/58 ,  G11B21/20

Abstract: A carriage assembly for holding a pair of opposite transducers (150Z, 152Z) in contact with the opposite sides of a flexible magnetic disk includes a swing arm (502, 506) for carrying each of the transducers. Respective E-shaped leaf springs (504, 508) support the swing arms with respect to a carriage using the two outer legs of each of the springs which are substantially flat and unstressed when the transducers are in contact with the disk. The central legs of the E-shaped springs are connected together so as to urge the swing arms and transducers together and allow the swing arms and transducers to be parted for the insertion of a disk into operative position. A gimbal spring and a loading spring support each of the transducers with respect to its associated swing arm. The gimbal springs, loading springs and E-shaped springs are balanced with respect to each other so as to hold the transducers in light data transferring contact with the disk. The outer legs of the E-shaped springs flex for low frequency undulations of the disk, and the loading springs and gimbal springs flex for high frequency undulations of the disk.

公开(公告)号：DE2962474D1

公开(公告)日：1982-05-19

申请号：DE2962474

申请日：1979-11-19

Applicant: IBM

Inventor： KING FRANCIS KONG ,  WANEK DONALD JOHN

IPC: G11B17/32 ,  G11B5/58 ,  G11B21/12 ,  G11B21/20

公开(公告)号：DE2962213D1

公开(公告)日：1982-03-25

申请号：DE2962213

申请日：1979-11-19

Applicant: IBM

Inventor： KING FRANCIS KONG ,  MAURINE RONALD JOHN ,  WANEK DONALD JOHN

IPC: G11B17/32 ,  G11B5/187 ,  G11B5/58 ,  G11B5/60 ,  G11B5/27

Abstract: The specification describes an assembly of a pair of magnetic transducers (400) held substantially in contact with opposite sides of a flexible magnetic disk wherein each transducer has a pair of disk contacting lands (404,406) each broadening from the leading edge (404b) to the trailing edge (404c), with the leading edge (404b) and side edge (404d) of each land being gradually blended into the surrounding active surface of the transducer and with the trailing edge (404c) of the land being sharp. A first one (404) of the lands of each transducer has a read/write magnetic gap (28U) in it, and in use (this land is located opposite the second land (not having the read/write gap in it) of the other transducer, the second land being wider than the first land in each case. The centres of the opposing lands are in alignment, the centres being located on a plane passing through the read/write gaps of the transducers,

公开(公告)号：DE2962006D1

公开(公告)日：1982-03-11

申请号：DE2962006

申请日：1979-12-17

Applicant: IBM

Inventor： KING FRANCIS KONG ,  WANEK DONALD JOHN

IPC: G11B5/58 ,  G11B5/60 ,  G11B5/55

Abstract: A suspension assembly for a magnetic transducer head 150V includes a normally flat gimbal spring 308 in the form of a figure eight, with a pair of tabs or ears 308G at the sides of the eight by means of which the spring is mounted in a support arm 104V. A backup spring, 310 has legs 310D and 310E extending from a mounting side of a hole in the arm 104V towards the other side. Legs 310F and 310G extend back again and connect to a depending leg 310H and flange portion 3101 effective to provide pressure on the middle of the gimbal spring 308. The backup spring 310 provides resilient backup force against translation of the transducer head on its main axis and the gimbal spring 308 provides resilience against transducer pitching and rolling.

公开(公告)号：GB2288055B

公开(公告)日：1997-09-10

申请号：GB9503251

申请日：1995-02-20

Applicant: IBM

Inventor： BROOKS WILLIAM WOODROW JR ,  BROWN JEFFREY BERNARD ,  COFFEY JEROME THOMAS ,  WANEK DONALD JOHN

IPC: G11B21/21 ,  G11B5/48 ,  G11B5/54 ,  G11B21/22

Abstract: A head suspension assembly for use in a disk drive having a load and unload ramp, the head suspension assembly including a load beam, a cover having a load and unload tang, a coating sandwiched between the cover and the load beam, and a head lead wire extending through the coating. In a preferred embodiment, the coating is a visco-elastic thermoplastic adhesive and the cover is a constraining material; whereby the cover is adhered to the load beam and undesired vibrations of the head suspension assembly are dampened. In a method of fabricating the head suspension assembly, the cover is placed over the load beam after the coating is applied and after the head lead wire is strung over the load beam, and then the cover is adhered to the load beam by heating the coating, preferably by placing a heated platen over the cover. Consequently, the load and unload tang, which is part of the cover, is not an obstacle when routing the head lead wire over the load beam and bonding the wire to a slider, and the head suspension assembly fabrication process can be automated.

公开(公告)号：GB2288055A

公开(公告)日：1995-10-04

申请号：GB9503251

申请日：1995-02-20

Applicant: IBM

Inventor： BROOKS WILLIAM WOODROW JR ,  BROWN JEFFREY BERNARD ,  COFFEY JEROME THOMAS ,  WANEK DONALD JOHN

IPC: G11B21/21 ,  G11B5/48 ,  G11B5/54 ,  G11B21/22

Abstract: A head suspension assembly 10 for use in a disk drive 22 having a load and unload ramp, the head suspension assembly including a load beam 12, a cover 16 having a load and unload tang 18, a coating 20 sandwiched between the cover and the load beam, and a head lead wire 22 extending through the coating. In a preferred embodiment, the coating is a visco-elastic thermoplastic adhesive and the cover is a constraining material; whereby the cover is adhered to the load beam and undesired vibrations of the head suspension assembly are dampened. In a method of fabricating the head suspension assembly, the cover is placed over the load beam after the coating is applied and after the head lead wire is strung over the load beam, and then the cover is adhered to the load beam by heating the coating, preferably by placing a heated platen over the cover. Consequently, the load and unload tang, which is part of the cover, is not an obstacle when routing the head lead wire over the load beam and bonding the wire to a slider, and the head suspension assembly fabrication process can be automated.

公开(公告)号：DE2608544A1

公开(公告)日：1976-10-14

申请号：DE2608544

申请日：1976-03-02

Applicant: IBM

Inventor： WANEK DONALD JOHN ,  WESTPHAL GORDON WILBUR

IPC: G11B15/67 ,  G06K17/00 ,  G11B15/68 ,  G11B25/06

Abstract: A machine for writing information on and reading information from a relatively wide magnetic tape including a carousel for receiving a plurality of cartridges holding such tape with the cartridges being disposed with their axes parallel with the axis of rotation of the carousel, a plunger for latching onto a cartridge in the carousel and moving the cartridge out of the carousel into a tape unwinding position, motor mechanism for unwinding the tape in this position and moving it across a bed carrying a rotatable magneitc read/write disk substantially coextensive with the face of the bed on which the tape travels, a takeup spool for receiving the tape passing across the bed and including a swingable arm for causing the tape to start winding on the spool, and a relatively slowly moving mandrel and a pressure roll cooperating with the mandrel for subsequently moving the tape across the bed so that the disk may have a magnetic reading or writing action with respect to the tape.