• 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:
    A magnetic disc cartridge 1 comprises a jacket 2 which contains a rotatable magnetic disc having a hub 6 which receives a rotatable shaft which drives the disc. The jacket 2 has an opening 7 through which the rotatable drive shaft passes. When the disc is rotated, information may be recorded in a plurality of circular tracks thereon. The jacket 2 has an indicator 20 for indicating the number of tracks in which information signals have already been recorded. The indicator 20 includes a scale 28 and a rotatable member 21 having a keyhole-shaped opening 22, 23 which in operation is engaged by a shaft 30 of a recording apparatus, to be rotated by incremental angles each representing the recording of a track. The keyhole-shaped opening 23 also acts as a pointer indicating the track number. The rotatable member 21 may have teeth engaged with a resilient pawl 25 within the jacket 2, to restrain it against rotation when disengaged from the apparatus. <IMAGE>
    公开号:SU1095886A3
    申请号:SU823451316
    申请日:1982-06-04
    公开日:1984-05-30
    发明作者:Саито Эцуро
    申请人:Сони Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the accumulation of information, namely, cassettes with a flexible magnetic disco. A cassette with a flexible magnetic disk is known, which contains a package-like case, between which the flexible magnetic disk is located between the cheeks. The box office allows for relatively high protection of a flexible magnetic disk against damage with the simplicity of its design lj. A disadvantage of the known cassette is the considerable complexity of its maintenance. Also known is a cassette with a flexible magnetic disk containing a packet-shaped foot, between whose cheeks there is a flexible magnetic disk fastened on a hollow shaft, placed in large apertures of the cheeks of the packet-shaped case. This cassette allows for relative ease of maintenance 2j. The disadvantage of such a cassette. Is that the search for a ring track on a floppy disk is considerably more likely. This is because the cassette does not provide an indication of the number of printed annular recording tracks on a floppy disk. The purpose of the invention is to reduce the error in searching for a ring track on a floppy disk. This is achieved by the fact that in a cassette with a flexible magnetic disk containing a bag-shaped case, between which cheeks there is a flexible magnetic disk fixed on a hollow shaft placed in the round apertures of the bag-shaped cheeks, there is an indicator ring with a gear ring. and with an installation internal radial slot, and an elastic latch, provided with a tooth-like protrusion and cantilever-fastened on the first cheek of the bag-shaped case, made with an additional round hole, and the second cheek pack The similar case is made with an additional hole and concentrically located with the indicator scale of the serial number of the ring track on a flexible magnetic disk, the indicator ring being mounted for free rotation in the additional round holes of the first and second cheeks of the package case and the teeth the elastic latch is linked to the tooth by the 1st crown of the indicator ring. The proposed cassette is due to the insertion of an indicator ring in it, which is made with a ring gear, and an elastic latch fitted with a tooth-like. as the second cheek of the bag-shaped case is made with an additional round hole and with an indicator scale of the serial number of the ring track on a flexible magnetic disk located concentrically, it greatly reduces the search error of the ring tracks. on flexible. magnetic disk. FIG. 1-fig. 3 shows a cassette with a flexible magnetic disk, variants; in fig. 4 and FIG. 5 - location of the indicator ring. The proposed cassette contains a packet-shaped case p 1, between which the first and second cheeks 2 and 3 accommodate a flexible magnetic disk 4. A flexible magnetic disk 4 is mounted on a hollow shaft 5 placed in the circular holes 6 and 7 of the first and second Diecek 2 and 3 package-shaped cases pa 1; The cassette also contains an indicator ring 8, made with a ring gear 9 and with an installation internal radial slot 10, and an elastic latch 11. The elastic latch 1 1 is provided with a dent-like protrusion 12 and cantilevered by means of screws 13 on the first cheek 2 of the bag-shaped case 1, made with with an additional round hole 1. In the pre-cassette cartridge, the second cheek 3 of the package-like case 1 is made with an additional round hole 15 and with an indicator scale 16 arranged in concentric with it 16 times a ring number recording tracks on a flexible magnetic disk 4. The indicator ring 8 is mounted for free rotation in additional circular holes 14 and 15 of the first and second cheeks 2 and 3 of the package-like case 1. Moreover, the dent-like protrusion 12 of the elastic latch 11 is engaged with the ring crown 9 of the ring 8 indicator. The first and second cheeks 2 and 3 are made with windows 17 and 18, designed for re-. Placing magnetic heads in them during recording and playback. Windows 17 and 18 are closed by a spring-loaded shutter 19, which opens them when the proposed cassette is installed in a dp recording-playback device. The work of the proposed cassette is as follows. When the proposed cassette is installed in a recording-reproducing apparatus, a hollow shaft 5 is mounted on a drive shaft allowing the flexible magnetic disk 4 to rotate. In this case, the indicator ring 8 is mounted on the indicator shaft, kinematically connected to the magnetic head. At each full rotation of the flexible magnetic disk 4 during recording, the indicator ring B is rotated by an angle corresponding to one indicator of the 16-digit number of the ring track on the flexible magnetic disk 4. At the end of each rotation of the indicator indicator ring 8, the dental protrusion 12 elastic latch 11 fixes it in this position, engaging with the ring crown 9. This position of the indicator ring 8 remains after removal of the proposed cassette from the recording-playback device, which gives information on the number of annular tracks recorded during subsequent recording or playback. The use of the proposed invention in comparison with the known one allows significantly reducing the search error of a ring track on a floppy disk.
    .2
    / f.
    Uff /
    ff / J
    (/f.3
    权利要求:
    Claims (1)
    [1]
    FLEXIBLE MAGNETIC DISC CASSETTE, containing a bag-shaped case, between the cheeks of which there is a flexible magnetic disk mounted on a hollow shaft, placed in the round holes of the cheeks of the bag-shaped case, characterized in that, in order to reduce the error in finding the ring track recording on a flexible magnetic the disk, an indicator ring is introduced into it, made with a gear rim and with an internal radial slot, and an elastic latch provided with a tooth-like protrusion and cantilevered on the first cheek a keto-shaped case made with an additional round hole, and the second cheek of the bag-shaped case is made with an additional round hole and with a dial indicator concentric to it of the serial number of the ring track on a flexible magnetic disk, with the indicator ring installed with the possibility of free rotation in additional round holes of the first and second cheeks of the bag-shaped case, and the tooth-shaped protrusion of the elastic latch is engaged with the ring gear of the indicator ring.
    SU < n , 1095886
    4 7 ί J 1
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1095886A3|1984-05-30|Assette with flexible magnetic disc
    SU1271384A3|1986-11-15|Cassette with flexible magnetic disc and cassette device for magnetic recording-reproducing
    SU1103810A3|1984-07-15|Cassette with flexible magnetic disc
    KR920008679A|1992-05-28|Transducer Positioning Method and Device
    SU971122A3|1982-10-30|Magnetic recording system
    AT163329T|1998-03-15|DISK RECORDING PART FOR STORAGE CASSETTE FOR CIRCULAR INFORMATION DISKS
    US4575778A|1986-03-11|Tape cassette containing run counter disc
    ES382380A1|1973-04-16|Tape diverting device in a tape recorder apparatus with drum shift during tape engagement
    US4194224A|1980-03-18|Disk indicator and ejector
    US4545550A|1985-10-08|Tape reel mounting and coupling for a magnetic-tape cassette
    US3932895A|1976-01-13|Reversible magnetic recording disk unit
    EP0092373A1|1983-10-26|Cassette and cassette adapter for use therewith
    EP0389199A3|1991-03-20|Automatic cassette tape recording and reproducing apparatus
    US4586102A|1986-04-29|Track number indicator
    US3827079A|1974-07-30|Transcriber dictation indexing apparatus
    KR830008278A|1983-11-16|Recording disc playback device
    US4747003A|1988-05-24|Head shifting device for information recording and/or reproducing apparatus
    GB1116036A|1968-06-06|Gramophone with repeat mechanism
    GB2154544A|1985-09-11|Tape cartridge
    KR870001954B1|1987-10-23|Disc torquing apparatus
    SU881353A1|1981-11-15|Device for emergency-informing of mine personnel
    GB2195612A|1988-04-13|Magnetic tape cassette
    US5666342A|1997-09-09|United tape and disc recording/reproducing device having a united inserting part
    SU864332A1|1981-09-15|Magnetic recording apparatus
    WO1994020895A1|1994-09-15|Method and apparatus for determining recording time available on a videotape cassette
    同族专利:
    公开号 | 公开日
    LU84181A1|1982-12-13|
    NL8202187A|1983-01-03|
    GB2102188B|1985-08-07|
    BE893410A|1982-12-06|
    DE3221217A1|1982-12-23|
    NO821864L|1982-12-06|
    MX151677A|1985-01-30|
    IT8222081V0|1982-06-04|
    FR2507370A1|1982-12-10|
    BR8203304A|1983-05-24|
    KR840000804U|1984-02-29|
    IL66012A|1985-04-30|
    CH648144A5|1985-02-28|
    FI821933A0|1982-06-01|
    IT8221718D0|1982-06-04|
    PL236782A1|1983-02-14|
    SE8203451L|1982-12-06|
    ES272883U|1983-11-01|
    PT75019A|1982-07-01|
    PT75019B|1983-12-23|
    IL66012D0|1982-09-30|
    GB2102188A|1983-01-26|
    NZ200806A|1985-01-31|
    AT377632B|1985-04-10|
    CA1191948A|1985-08-13|
    JPS6245356Y2|1987-12-03|
    ATA218182A|1984-08-15|
    FR2507370B1|1986-01-24|
    AU8429982A|1982-12-09|
    IN158372B|1986-11-01|
    DK252782A|1982-12-06|
    ES272883Y|1984-05-01|
    KR880003092Y1|1988-08-31|
    AU549266B2|1986-01-23|
    JPS57195686U|1982-12-11|
    IT1151281B|1986-12-17|
    ZA823937B|1983-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3471096A|1967-11-22|1969-10-07|Courier Enterprises|Endless tape recorder and cartridge|
    US3711654A|1969-04-30|1973-01-16|Canon Kk|Magnetic recording and reproducing device for use with an endless recording medium with means for indicating a recordable state with-in one cycle of the endless recording medium|
    JPS4913902Y1|1969-06-30|1974-04-05|
    FR2188906A5|1972-06-07|1974-01-18|Salomon Koechli Jean Cl|
    US4152740A|1977-03-16|1979-05-01|Arvin Industries, Inc.|Magnetic disc recorder and cassette|
    DE2717689C2|1977-04-21|1982-05-27|Standard Elektrik Lorenz Ag, 7000 Stuttgart|Square protective cover for a disc-shaped foil storage device|
    BE871596A|1978-10-27|1979-02-15|Staar Sa|DEVICE FOR MEMORIZING THE INSTANTANEOUS POSITION OF A MAGNETIC TAPE CONTAINED IN A CASSETTE.|JPS5938967A|1982-08-25|1984-03-03|Canon Inc|Information recorder|
    JPH0210626Y2|1982-09-21|1990-03-15|
    JPH0325350Y2|1983-04-22|1991-05-31|
    JPH0216458Y2|1983-05-13|1990-05-07|
    JPS6012886U|1983-06-30|1985-01-28|
    US4586102A|1983-08-04|1986-04-29|Eastman Kodak Company|Track number indicator|
    JPH043031B2|1985-03-13|1992-01-21|
    US4920441A|1985-03-13|1990-04-24|Nippon Telegraph and Telehpone Corp.|Flexible magnetic diskette|
    JPH0634323B2|1985-09-25|1994-05-02|ソニー株式会社|Disco Cartridge|
    NL8503236A|1985-11-25|1987-06-16|Philips Nv|INFORMATION MEDIUM INCLUDING AN INFORMATION DISC.|
    JP2001057048A|1999-03-05|2001-02-27|Hitachi Maxell Ltd|Disk cartridge|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP1981082830U|JPS6245356Y2|1981-06-05|1981-06-05|
    [返回顶部]