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    • 6. 发明授权
    • Tape recorder and magnetic tape cassette
    • 磁带录音机和磁带盒
    • US4029268A
    • 1977-06-14
    • US618042
    • 1975-09-30
    • Klaus SchoettleHeinrich WittkampLothar GliniorzPeter Dobler
    • Klaus SchoettleHeinrich WittkampLothar GliniorzPeter Dobler
    • G11B15/22G11B23/087G11B23/10
    • G11B23/087G11B15/22G11B23/08721G11B23/08764
    • 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.
    • 本发明涉及一种用于这种盒式磁带的磁带盒和磁带记录器。 更具体地说,本发明涉及在盒内提供可移动的保持装置,这意味着在第一位置 - 防止包装卷的松开,从而使磁带紧紧地紧固,并且在第二位置释放包装 用于与记录器上的引导,扫描和驱动装置一起操作的磁带。 所述保持装置是弹簧元件的形式,其接合轮毂中的齿,以防止包装件松开。 在一个特殊的实施例中,保持装置是扁平构件的形式,在其侧表面之间的包装的每一侧上的一个和盒的上壁和下壁之间,设有单独的弹簧,其弹性地支撑所述构件相对于 并且允许所述构件从第一包装锁定位置移动到第二包装释放位置。
    • 8. 发明授权
    • Tape transport mechanism for recording and playing back video signals
    • 用于记录和播放视频信号的磁带传输机制
    • US4128852A
    • 1978-12-05
    • US775318
    • 1977-03-07
    • Werner SenkpielKlaus SchoettleHeinrich WittkampKarl Uhl
    • Werner SenkpielKlaus SchoettleHeinrich WittkampKarl Uhl
    • G11B5/70B65H23/28C09D5/23G11B5/738G11B15/295G11B15/60G11B15/26B65H17/32G11B5/78
    • G11B15/60G11B15/295
    • The invention is directed to a tape transport mechanism for recording and playing back video signals comprising a contact winding mechanism with tape-guiding means at the capstan and a magnetic tape in which the substrate is a polyethylene terephthalate film. The coated side of the tape, during transport, is in contact with the guide surface of the guide means, and no part of the transport mechanism at which slip could occur during the tape transport is allowed to be in contact with the tape substrate. The tape is wound with its substrate on the inside and its coated side is preferably abrasive with respect to the guide surface, which latter may advantageously consist either of steel or a ceramic material. The bonding agent of the magnetic dispersion -- preferably a chromium dioxide dispersion -- may be prepared from a polyurethane/polyvinyl chloride mixture which imparts the desired hardness to the tape. The arrangement can be advantageously employed with any kind of record/playback apparatus for video signals which includes a stationary head and develops high tape advance speeds.
    • 本发明涉及一种磁带传送机构,用于记录和播放视频信号,该视频信号包括在主导轴上的带引导装置的接触绕线机构和其中该基底为聚对苯二甲酸乙二醇酯薄膜的磁带。 带的涂布侧在运输过程中与引导装置的引导表面接触,并且不允许在带传送期间发生滑移的输送机构的任何部分与带基片接触。 胶带在其内部被卷绕在其基材上,并且其涂布侧优选地相对于引导表面是磨料,后者可以有利地由钢或陶瓷材料组成。 磁性分散体 - 优选二氧化铬分散体的粘合剂可以由向胶带赋予所需硬度的聚氨酯/聚氯乙烯混合物制备。 该装置可以有利地用于任何种类的用于视频信号的记录/重放装置,该记录/重放装置包括静止头部并且产生高磁带提前速度。