• 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:
    The invention relates to support systems for flexible information-carrying discs. More particularly, the invention relates to an air bearing support plate (1) for a flexible disc (3) of which the sliding surface (2) is free in a preponderant sector from any profile irregularity (6) capable of affecting the flatness of the annular band of the disc (3) containing the information. The invention is applicable in particular to the optical reading by reflection or transmission of information carried by a flexible disc.
    公开号:SU816408A3
    申请号:SU782632156
    申请日:1978-06-30
    公开日:1981-03-23
    发明作者:Рулле Андрэ；Пьер Бортюззо Жан；Шевалье Серж
    申请人:Томсон-Бранд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the accumulation of information, namely, devices for rotating a flexible disk recording medium. A device for rotating a flexible disk recording medium, comprising a rotating disk, the surface of which is associated with the flat surface of a flexible disk recording medium, is known in that the device provides relatively high stability of rotation of the flexible recording disk Cl. However, the device has large dimensions and weight. It is also known a device for rotating a flexible disk recording medium, comprising a fixed disk, whose stabilizing surface is located against the flat surface of a flexible disk recording medium placed against the recording or reproducing element and mounted on a shaft mounted with rotation in the central hole of the fixed disk, made with a tapered bevel air supply. This device is relatively small in size L2. The disadvantage of this device is the considerable instability of the rotation of the flexible disk recording medium. The purpose of the invention is to reduce the rotational instability of a flexible disk recording medium. The goal is achieved because the stabilizing surface of the fixed disk has at least one expanding radial groove located against the flat surface of the flexible disk recording medium at an angle to the radius of the fixed disk formed by the plane perpendicular to it passing through the back or playback element. FIG. 1 shows one of the possible variants of the proposed device for rotation, a flexible disk recording medium) in FIG. 2 conical bevel air supply. The proposed device comprises a fixed disk 1, the stabilizing surface 2 of which is located against the flat surface of the flexible disk recording medium 3. A flexible disk record carrier 3 is mounted on a shaft 4 mounted for rotation in a central hole 5 of a fixed disk 1 made with a cone-shaped bevel 6 of air supply. Here, the flexible disk recording medium 3 is arranged against the recording or reproducing element 7.
    In the proposed device, the stabilizing surface 2 of the fixed disk 1 has at least one radial groove 8 that expands. The expanding radial groove 8 is located against the flat surface of the flexible disk recording medium 3 at an angle of 240 ° to the radius of the fixed disk 1 formed by the perpendicular by a plane passing through it, through element 7 of recording or reproduction.
    In the proposed device, during rotation of the flexible disk drive 3 of the recording medium, an air cushion is formed between its flat surface and the stabilizing surface 2 of the fixed disk 1. The air flow in the expanding radial groove 8 of the stabilizing surface 2 of the fixed disk 1 during the rotation of the flexible disk recording medium 3 provides local lift. last. In view of this, the rotation of the flexible disk 3 of the recording medium is stabilized.
    In addition to reducing the instability of rotation of a flexible disk medium, the use of the invention also provides a considerable simplicity of the device for rotating a flexible disk recording medium.
    权利要求:
    Claims (2)
    [1]
    1. Japanese Patent No. 51-23326, cl. 102 E 23, 1976.
    [2]
    2. US Patent W 3951264, cl. 206-444, 1976 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    US5189574A|1993-02-23|Flexible information storing disk apparatus having laminar air flow
    JP2856553B2|1999-02-10|Disc fastening tool consisting of two members
    KR940018833A|1994-08-19|Record and playback device
    SU816408A3|1981-03-23|Device for rotating disk record carrier
    ES2010643A4|1989-12-01|FLEXIBLE DISKETTE
    US4175274A|1979-11-20|Recording system with flexible magnetic recording disc
    FR2393393A1|1978-12-29|ROTARY RECORDING MEDIA, METHOD AND DEVICE FOR OPTICAL REPRODUCTION OF RECORDED INFORMATION
    US4159494A|1979-06-26|Flexible disk in reversible cartridge
    US5077726A|1991-12-31|Optical disc cartridge with a flexible storage medium
    US3488646A|1970-01-06|Rotary disc unit
    US4216511A|1980-08-05|Flexible magnetic recording disc with cartridge having a latching drive member
    US3688285A|1972-08-29|Flexible disk magnetic recording device
    JPH05114227A|1993-05-07|Method and apparatus for stabilizing flexible medium in information recording system
    MY108251A|1996-08-30|Disc player
    US4376960A|1983-03-15|Flexible disk stabilizing structure
    MY105605A|1994-11-30|Loading device for a recording and/or reproduction set.
    US2416135A|1947-02-18|Phonographic apparatus
    US3840897A|1974-10-08|Magnetic disc recording assembly
    US3696350A|1972-10-03|Connected rotatable pliable disk and rigid disk with annular groove for recording using an air bearing
    US4625384A|1986-12-02|Method of making a recording disc
    EP0092325A1|1983-10-26|Recording disc
    SU884590A3|1981-11-23|Device for stabilizing rotation of elexible disc record carrier
    SU847365A1|1981-07-15|Device for rotating flexible record carrier disk
    SU847364A1|1981-07-15|Cassette for flexible disk
    SU781963A1|1980-11-23|Device for optical recording of information onto flexible disk
    同族专利:
    公开号 | 公开日
    DE2828889C2|1988-09-01|
    PL115997B1|1981-05-30|
    JPS5419704A|1979-02-14|
    FR2396383B1|1981-07-24|
    GB2000624A|1979-01-10|
    IT7850116D0|1978-06-30|
    PL208014A1|1979-03-26|
    FR2396383A1|1979-01-26|
    JPS6217298B2|1987-04-16|
    US4183069A|1980-01-08|
    CS219341B2|1983-03-25|
    CA1112761A|1981-11-17|
    GB2000624B|1982-02-03|
    DE2828889A1|1979-01-18|
    IT1105082B|1985-10-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2950353A|1955-07-05|1960-08-23|Litton Industries Inc|Pliant disk magnetic recording apparatus|
    US3155977A|1959-08-31|1964-11-03|Ibm|Resilient recording disk|
    US3110889A|1960-05-02|1963-11-12|Lab For Electronics Inc|Magnetic disc storage device|
    US3178719A|1961-07-20|1965-04-13|Lab For Electronics Inc|Magnetic disc|
    FR2073651A5|1969-12-23|1971-10-01|Licentia Gmbh|
    DE2060303A1|1970-12-02|1972-06-08|Telefunken Patent|Recording and / or playback device for high-speed, flexible recording media|
    US3764758A|1971-05-26|1973-10-09|Sony Corp|Magnetic recording and/or reproducing apparatus with transducer extending through a record support plate having an annular groove coextensive with record track|
    FR2167258A5|1972-01-11|1973-08-24|Thomson Csf|
    US3947886A|1974-04-25|1976-03-30|Dynastor, Inc.|Flexible disc recording apparatus|
    US4074330A|1976-08-30|1978-02-14|International Business Machines Corporation|Flexible disk storage apparatus|JPS5646075U|1979-09-13|1981-04-24|
    NL8004379A|1980-07-31|1982-03-01|Philips Nv|DEVICE FOR RECORDING AND / OR READING INFORMATION ON A ROTATING DISC using a radiation beam.|
    US4658318A|1981-04-22|1987-04-14|Iomega Corporation|Magnetic disk cartridge having improved locking mechanism and ringing pad|
    US4419704A|1981-04-24|1983-12-06|Iomega Corporation|Bernoulli plate for stabilization of flexible magnetic disk|
    JPH02100395U|1989-01-27|1990-08-09|
    US4973151A|1990-03-23|1990-11-27|Eastman Kodak Company|Film constraint and illumination system|
    US4973150A|1990-03-23|1990-11-27|Eastman Kodak Company|Film constraint and film writing system|
    JPH0471098U|1990-10-31|1992-06-23|
    FR2832831B1|2001-11-23|2004-03-12|Pascal Otalora|DEVICE FOR SERVING DIGITAL MULTIMEDIA SYSTEMS|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7720374A|FR2396383B1|1977-07-01|1977-07-01|
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