GB2005454A - Magnetic-Disk files - Google Patents

Magnetic-Disk files

Info

Publication number
GB2005454A
GB2005454A GB7831245A GB7831245A GB2005454A GB 2005454 A GB2005454 A GB 2005454A GB 7831245 A GB7831245 A GB 7831245A GB 7831245 A GB7831245 A GB 7831245A GB 2005454 A GB2005454 A GB 2005454A
Authority
GB
United Kingdom
Prior art keywords
base
disk
file
spindle assembly
lie
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7831245A
Other versions
GB2005454B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB2005454A publication Critical patent/GB2005454A/en
Application granted granted Critical
Publication of GB2005454B publication Critical patent/GB2005454B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
    • G11B17/30—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the playing unit is moved according to the location of the selected record

Landscapes

  • Moving Of Heads (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

A disk file of the accessing head type has a disk/spindle assembly supported by and within an enclosure wail base, enclosing the assembly about its axis of rotation. The disk/spindle assembly centre of gravity is located on the neutral plane of the base. Actuators for moving the read/write heads of the file are predominantly supported by land lie within the enclosure wall base so that their centres of force lie as close as possible to the neutral plane. This file structure minimises both dynamic and static off-track error resulting from out-of-plane bending of the base due to actuator reaction forces or thermal effects. <IMAGE>
GB7831245A 1977-09-30 1978-07-26 Disc file with enclosure wall base Expired GB2005454B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83834677A 1977-09-30 1977-09-30

Publications (2)

Publication Number Publication Date
GB2005454A true GB2005454A (en) 1979-04-19
GB2005454B GB2005454B (en) 1982-02-10

Family

ID=25276871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831245A Expired GB2005454B (en) 1977-09-30 1978-07-26 Disc file with enclosure wall base

Country Status (17)

Country Link
JP (1) JPS5455408A (en)
AR (1) AR221066A1 (en)
BR (1) BR7805656A (en)
CA (1) CA1109557A (en)
CH (1) CH629617A5 (en)
DE (1) DE2830828A1 (en)
DK (1) DK151739C (en)
FI (1) FI67141C (en)
FR (1) FR2404886A1 (en)
GB (1) GB2005454B (en)
IE (1) IE47039B1 (en)
IT (1) IT1174388B (en)
NL (1) NL7809812A (en)
NO (1) NO150255C (en)
SE (1) SE426112B (en)
SU (1) SU921475A3 (en)
ZA (1) ZA784308B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222939A1 (en) * 1985-10-31 1987-05-27 International Business Machines Corporation Disk file with in-hub motor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191871A (en) * 1981-05-22 1982-11-25 Hitachi Ltd Magnetic disk storing device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815150A (en) * 1972-06-23 1974-06-04 Memorex Corp Flexible disc drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222939A1 (en) * 1985-10-31 1987-05-27 International Business Machines Corporation Disk file with in-hub motor
US4743995A (en) * 1985-10-31 1988-05-10 International Business Machines Corporation Disk file with in-hub motor

Also Published As

Publication number Publication date
CH629617A5 (en) 1982-04-30
DE2830828B2 (en) 1980-05-08
CA1109557A (en) 1981-09-22
DK151739C (en) 1988-06-13
IT7827411A0 (en) 1978-09-07
NO150255B (en) 1984-06-04
SU921475A3 (en) 1982-04-15
DK151739B (en) 1987-12-28
FI67141C (en) 1985-01-10
FR2404886B1 (en) 1984-11-16
FI67141B (en) 1984-09-28
NO150255C (en) 1984-09-12
NL7809812A (en) 1979-04-03
SE426112B (en) 1982-12-06
NO783288L (en) 1979-04-02
SE7809227L (en) 1979-03-31
ZA784308B (en) 1980-02-27
JPS5455408A (en) 1979-05-02
DK432678A (en) 1979-03-31
FI782943A (en) 1979-03-31
DE2830828C3 (en) 1981-01-15
GB2005454B (en) 1982-02-10
AR221066A1 (en) 1980-12-30
IE781537L (en) 1979-03-30
IE47039B1 (en) 1983-11-30
IT1174388B (en) 1987-07-01
JPS5756151B2 (en) 1982-11-27
BR7805656A (en) 1979-04-17
DE2830828A1 (en) 1979-04-05
FR2404886A1 (en) 1979-04-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920726