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    TAPE RECORDER AND MAGNETIC TAPE CASSETTE
    22.
    发明专利
    TAPE RECORDER AND MAGNETIC TAPE CASSETTE 未知

    公开(公告)号：AU497715B2

    公开(公告)日：1979-01-04

    申请号：AU8495875

    申请日：1975-09-18

    Applicant: BASF AG

    Inventor： SCHOETTLE KLAUS ,  WITTKAMP HEINRICH ,  GLINIORZ LOTHAR ,  DOBLER PETER

    IPC: G11B15/22 ,  G11B23/087 ,  G11B23/04

    Abstract: The invention relates to a magnetic tape cassette and a tape recorder for use with such a cassette. More specifically, the invention relates to the provision of movable holding means within the cassette, which means - in a first position - prevent unwinding of the packs of tape and thus hold the magnetic tape taut and - in a second position - release the packs and the magnetic tape for operation in conjunction with guide, scanning and driving means on the recorder. The said holding means are in the form of spring elements which engage teeth in the hubs to prevent the packs from unwinding. In a special embodiment, the holding means are in the form of flat members, one on each side of the packs between the side surfaces thereof and the upper and lower walls of the cassette, individual springs being provided which resiliently support said members relative to the wall of the cassette and permit movement of said members from a first, pack-locking position to a second, pack-releasing position.

    23.
    发明专利
    未知

    公开(公告)号：DE2712622A1

    公开(公告)日：1978-09-28

    申请号：DE2712622

    申请日：1977-03-23

    Applicant: BASF AG

    Inventor： SCHOETTLE KLAUS DIPL ING ,  UHL KARL DIPL ING DR ,  WITTKAMP HEINRICH DIPL ING ,  DOBLER PETER ,  LEWIN HELMUT

    IPC: G11B15/67 ,  G11B23/107 ,  G11B25/06 ,  G11B23/04

    Abstract: The cartridge arrangement of the present invention enables recording and/or playback apparatus to be used with cartridges of various sizes, the cartridges being provided with releasable locking means and, after the release of such means, being able to be opened to permit the tape roll(s) to be rotated on the recording and/or playback apparatus. The cartridge arrangement is applicable to every type of recording medium in tape or strip form in systems employing cartridges in which there is a need for using cartridges of various sizes, especially in the case of the recording and playback of magnetic signals.

    MAGNETIC TAPE TRANSPORT DEVICE OF THE TYPE WHEREIN THE REELS ARE DRIVEN BY SURFACE ENGAGEMENT
    25.
    发明专利
    MAGNETIC TAPE TRANSPORT DEVICE OF THE TYPE WHEREIN THE REELS ARE DRIVEN BY SURFACE ENGAGEMENT 未知

    公开(公告)号：DE3167098D1

    公开(公告)日：1984-12-13

    申请号：DE3167098

    申请日：1981-08-29

    Applicant: BASF AG

    Inventor： GLINIORZ LOTHAR ,  DOBLER PETER ,  SCHOETTLE KLAUS

    IPC: G11B15/43 ,  G11B15/29 ,  G11B15/295

    Abstract: A magnetic tape transport apparatus wherein at least one capstan simultaneously drives the take-up and supply reels, and wherein tape tension is generated by a braking device allotted to each tape reel, each braking device consisting of an assembly of levers (A, B, C, and D, E, Z) and a braking cable which is wound around the axle supporting the tape reel, and by means of which the braking forces are so adjusted that it is always the axle of the supply reel which is braked, while the axle of the take-up reel runs relatively freely. In a practical embodiment, the lever assembly comprises at least three hingedly connected levers (A, B, C and D, E, Z), viz. two lateral levers and an interconnecting lever, it being possible to obtain different lever arrangements by varying the locations of the movable pivot points (G) and the fixed fulcrum points (F) FIGS. 1 to 3). The tape transport with such braking devices is suitable for all types of magnetic tape recorder, such as audio, video and data recording apparatus, and can be used with particular advantage in compact portable recorders.

    29.
    发明专利
    未知

    公开(公告)号：DE3034989A1

    公开(公告)日：1982-04-29

    申请号：DE3034989

    申请日：1980-09-17

    Applicant: BASF AG

    Inventor： GLINIORZ LOTHAR ,  DOBLER PETER ,  SCHOETTLE KLAUS DIPL ING

    IPC: G11B15/43 ,  G11B15/29 ,  G11B15/295 ,  G11B15/30

    Abstract: A magnetic tape transport apparatus wherein at least one capstan simultaneously drives the take-up and supply reels, and wherein tape tension is generated by a braking device allotted to each tape reel, each braking device consisting of an assembly of levers (A, B, C, and D, E, Z) and a braking cable which is wound around the axle supporting the tape reel, and by means of which the braking forces are so adjusted that it is always the axle of the supply reel which is braked, while the axle of the take-up reel runs relatively freely. In a practical embodiment, the lever assembly comprises at least three hingedly connected levers (A, B, C and D, E, Z), viz. two lateral levers and an interconnecting lever, it being possible to obtain different lever arrangements by varying the locations of the movable pivot points (G) and the fixed fulcrum points (F) FIGS. 1 to 3). The tape transport with such braking devices is suitable for all types of magnetic tape recorder, such as audio, video and data recording apparatus, and can be used with particular advantage in compact portable recorders.

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