• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1525308 Guiding flexible record discs INTER. NATIONAL BUSINESS MACHINES CORP 30 Sept 1976 40576/76 Heading G5R A flexible record disc 1 is supported during rotation by an air bearing over a backing plate 3 which is bent upwardly along at least one, but preferably two, chords 7, 8 on either side of the radial slot 4 through which the head 5 accesses the underside of the disc, in order to restrict disturbance of the air bearing in the region of the head 5. The chords may be parallel, asymmetric or symmetric, but preferably define a tapering central area narrower at the slot 4. The plate 2C may be mounted in a cartridge, Fig. 9 (not shown), in which case the uppermost plate tips are rounded downwardly to save height.
    公开号:SU906397A3
    申请号:SU772533802
    申请日:1977-09-29
    公开日:1982-02-15
    发明作者:Роберт Хэтчетт Майкл；Джон Ригби Леонард
    申请人:Интернэшнл Бизнес Машинз Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The surface of the segmented projections can be made flat.
    Chord arranged symmetrically with respect to the slit-like groove.
    The sharp angles between the guiding plane of the stabilizing element and the surfaces of its segmental projections can be equal to 8–20.
    The ends of the chords from the slit-like groove are located closer to one another than their opposite ends.
    In addition, a cassette can be inserted in which the stabilizing element and its segmental projections are located.
    FIG. I and 2 / shows the proposed device for rotating the recording disc carrier, an option.
    The proposed device contains a rotating shaft 1, rigidly fixed in a flexible disk carrier 2 records. The surface of the flexible disk recording medium 2 is located against the guiding plane of the fixed stabilizing element 3, made with a slot groove 4, in which the recording and reproducing head 5 is mounted with the possibility of radial movement. The stabilizing element 3 is made with segmented shaped strips 6, the surfaces of which are located at acute angles to its guide plane against the surface of the flexible disk recording medium 2. In this case, the chords 7, along which the surfaces of the segmented protrusions 6 are intersected by the guide plane of the stabilizing element 3, are located on opposite sides of its slot-like groove 4. The device also contains a cassette 8 in which the stabilizing element 3 and its segmental protrusions 6 are located. the element 3 is made in the form of a plate bent along the chords 7, and the surface of the segmental-like protrusions 6 of the extrusions are flat. The chords 7 are arranged symmetrically with respect to the slit-like groove. 4, and the acute angles between the guide plane of the stabilizing element 3 and the surfaces of the segmented projections 6 are equal to 8. In addition, the ends of the chords 7 from the side of the slot-like groove 4 are located closer to one another than their opposite ends.
    In the proposed device in the process of rotation of a flexible disk drive 2 records between the surface
    The latter and the guide surface of the stabilizing element 6 and the surfaces of its segmented protrusions 6 create a supporting layer of air. This provides a high rotational stability of the flexible disk recording medium 2.
    Use of the invention in addition to reducing the instability of rotation 0 of a flexible disk recording medium
    also provides a significant simplicity in the design of the device for rotating the disk recording medium.
    权利要求:
    Claims (7)
    [1]
    1. An apparatus for rotating a recording disc medium comprising
    Q rotating shaft rigidly fixed in a flexible disk record carrier, the surface of which is located the protrusion of the guide plane of the fixed stabilizing element made with a slot-like groove in which the recording and reproducing head is installed with the possibility of radial movement, in order to reduce rotational instability flexible disk recording media, the stabilizing element is made with segmented protrusions, the surfaces of which are located at acute angles to its direction rail against the plane surface of the elastic disk recording medium, and the chord for which the surface protrusions are crossed segment-guide plane of the stabilizing element arranged on opposite sides of the slot-like groove.
    [2]
    2. The device according to claim 1, about t l and often because the stabilizing element is made in the form of a plate bent along the chords.
    [3]
    3. The device according to claim 1, which is distinguished by the fact that the surfaces of the segment-like projections are made
    flat.
    [4]
    4i The device according to claim 1, wherein the chords are arranged symmetrically with respect to the slot-like groove.
    [5]
    5 5. The device according to p. I, about t l and chacha-eu because of the acute angles. between the guide plane of the stabilizing element and the surfaces of its segmental protrusions are 8-20 C.
    [6]
    6. The device according to claim 1, characterized in that the ends of the chorus from the side of the slot-like groove are located closer to one another than the opposite ends.
    [7]
    7. The device according to claim 1, characterized in that it is entered into it //////////////// // 7G
    Dena cassette in which the stabilizing element and its segmental protrusions are located.
    Sources of information taken into account in the examination
    1. The patent of Japan R 49-12411, cl. 202 E 23, 1974.
    2. Patent of Great Britain No. 1412286, cl. G 5 P, 1975 (prototype).
    J
    J ig.g
    类似技术:
    公开号 | 公开日 | 专利标题
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    US3261610A|1966-07-19|Phonograph record
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    同族专利:
    公开号 | 公开日
    NL7710333A|1978-04-03|
    ATA597177A|1983-07-15|
    ES461423A1|1978-06-16|
    DE2735317B2|1981-07-02|
    MX143614A|1981-06-10|
    AT374028B|1984-03-12|
    AU2912877A|1979-04-05|
    NO150099C|1984-08-22|
    DE2735317A1|1978-04-06|
    NO773305L|1978-03-31|
    DE2735317C3|1982-03-11|
    GB1525308A|1978-09-20|
    NO150099B|1984-05-07|
    AU509694B2|1980-05-22|
    JPS5733619B2|1982-07-17|
    AR213970A1|1979-04-11|
    SE413271B|1980-05-12|
    US4167269A|1979-09-11|
    SE7710240L|1978-03-31|
    CA1084161A|1980-08-19|
    FR2366662B1|1980-06-27|
    FR2366662A1|1978-04-28|
    IT1118050B|1986-02-24|
    BE856566A|1977-10-31|
    JPS5342807A|1978-04-18|
    CH621644A5|1981-02-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3369227A|1965-08-12|1968-02-13|Lab For Electronics Inc|Flexible disc magnetic storage device|
    JPS4919211B1|1968-02-29|1974-05-16|
    DE2060303A1|1970-12-02|1972-06-08|Telefunken Patent|Recording and / or playback device for high-speed, flexible recording media|
    FR2126492A5|1971-02-08|1972-10-06|Thomson Csf|
    US3830506A|1971-12-11|1974-08-20|Ted Bildplatten|Foil record carrier|
    FR2167258A5|1972-01-11|1973-08-24|Thomson Csf|
    JPS528405Y2|1972-06-20|1977-02-22|
    JPS5622072B2|1973-02-16|1981-05-22|
    JPS534096Y2|1973-06-15|1978-02-01|
    US4003091A|1976-03-08|1977-01-11|International Business Machines Corporation|Transducer support and stabilizer|JPS55152818A|1979-05-16|1980-11-28|Nitto Shoji Kk|Take-up twister|
    US4376960A|1980-12-31|1983-03-15|International Business Machines Corporation|Flexible disk stabilizing structure|
    DE3374477D1|1983-12-21|1987-12-17|Ibm|A disk cartridge having a flexible disk storage medium and a disk file including such a cartridge|
    EP0990187B1|1998-04-17|2005-07-20|Koninklijke Philips Electronics N.V.|Method of manufacturing a lens system comprising two lens elements|
    JP2006139894A|2004-10-14|2006-06-01|Ricoh Co Ltd|Recording/playing-back device and disk cartridge|
    JP4688217B2|2005-09-13|2011-05-25|株式会社リコー|Disk device and disk cartridge|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB40576/76A|GB1525308A|1976-09-30|1976-09-30|Data storage apparatus|
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