IE781537L - Disk file - Google Patents

Disk file

Info

Publication number
IE781537L
IE781537L IE781537A IE153778A IE781537L IE 781537 L IE781537 L IE 781537L IE 781537 A IE781537 A IE 781537A IE 153778 A IE153778 A IE 153778A IE 781537 L IE781537 L IE 781537L
Authority
IE
Ireland
Prior art keywords
base
disk
file
spindle assembly
lie
Prior art date
Application number
IE781537A
Other versions
IE47039B1 (en
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of IE781537L publication Critical patent/IE781537L/en
Publication of IE47039B1 publication Critical patent/IE47039B1/en

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> [GB2005454A]
IE1537/78A 1977-09-30 1978-07-28 Disk file with enclosure wall base IE47039B1 (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
IE781537L true IE781537L (en) 1979-03-30
IE47039B1 IE47039B1 (en) 1983-11-30

Family

ID=25276871

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1537/78A IE47039B1 (en) 1977-09-30 1978-07-28 Disk 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)

Families Citing this family (2)

* 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
DE3581544D1 (en) * 1985-10-31 1991-02-28 Ibm DISK STORAGE WITH A DRIVE ENGINE INTEGRATED INTO THE HUB OF THE DISK STACK.

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

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
GB2005454A (en) 1979-04-19
AR221066A1 (en) 1980-12-30
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
MM4A Patent lapsed