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    • 23. 发明授权
    • Fast-forward tape drive means for cartridge tape player
    • 用于盒式磁带播放器的快速前进磁带驱动器
    • US3850357A
    • 1974-11-26
    • US44746374
    • 1974-03-01
    • MOTOROLA INC
    • LACE M
    • G11B15/28G11B15/29G11B15/44B65H17/22
    • G11B15/29G11B15/444
    • A cartridge tape drive system comprises a capstan drive shaft, a flywheel mounted thereon, a tape drive motor coupled to the flywheel by means of a belt looped about the flywheel and drive shaft of the tape drive motor and further, a fast-forward tape drive arrangement. The last-mentioned arrangement comprises first and second pulley wheels, one mounted on the capstan shaft an the other on the drive motor output shaft and a pair of oneway clutches. In a preferred embodiment, a first one of the clutches couples the second pulley wheel and motor drive shaft and the second clutch couples the capstan shaft and flywheel. The pulley wheels are coupled by a second belt looped thereabout in a figure eight or crossed over configuration. In normal play, the drive motor is energized in a first sense to rotate the output shaft in a first direction. The first one-way clutch is engaged and the second is disengaged to drive the flywheel and capstan in a first direction at a first playback speed. For fast-forward, the electrical connections to the drive motor are reversed to rotate the output shaft in the opposite direction. At this time, the first one-way clutch is decoupled and the second is engaged to impart to the capstan shaft, through the pulley wheels and crossed over belt, rotation in the first direction, but at a speed greater than the normal playback speed.
    • 盒式磁带驱动系统包括主导轴驱动轴,安装在其上的飞轮,带式驱动马达,其通过围绕飞轮的带环和带驱动马达的驱动轴耦接到飞轮,并且还包括快进磁带驱动器 安排。 最后提到的装置包括第一和第二滑轮,一个在主导轴上,另一个在驱动马达输出轴上以及一对单向离合器。 在优选实施例中,离合器中的第一离合器将第二皮带轮和马达驱动轴联接,并且第二离合器联接主导轴和飞轮。 滑轮通过在其周围环绕的第二皮带联接,或者穿过配置。 在正常的播放中,驱动电动机在第一方向被激励以沿第一方向旋转输出轴。 第一单向离合器接合,第二单向离合器被分离,以第一方向以第一回放速度驱动飞轮和绞盘。 为了快进,驱动电机的电气连接是相反的,以使输出轴沿相反的方向旋转。 此时,第一单向离合器被解耦,第二单向离合器被接合以通过皮带轮传递给主导轴,并且在第一方向上旋转,但是以大于正常重放速度的速度穿过皮带轮。
    • 24. 发明授权
    • Tape cartridge and playback unit
    • 磁带盒和回放单元
    • US3792823A
    • 1974-02-19
    • US3792823D
    • 1967-09-20
    • WILLIAMS R
    • WILLIAMS R
    • G11B15/06G11B15/16G11B15/44G11B15/62G11B25/06B65H17/48
    • G11B15/62G11B15/06G11B15/16G11B15/444G11B25/066
    • This invention relates to a magnetic tape cartridge system including a playback unit having dual capstans and a magnetic tape cartridge having openings positioned to receive the dual capstans during the replay of the magnetic tape cartridge by the playback unit. The dual capstans may be rotated in either of one of two opposite directions. The direction of rotation is controlled by the insertion of the magnetic tape cartridge into the playback unit and the direction of rotation is in accordance with the orientation of the magnetic tape cartridge. When the magnetic tape cartridge is inserted in the first orientation, the capstans are rotated in the first direction to replay one half the information on the tape. When the cartridge is turned upside down to be in the second orientation the capstans are rotated in the second direction to replay the remaining information on the tape. The playback unit includes means for sensing the orientation of the tape cartridge in order to properly determine which direction to rotate the capstans. The invention also includes the use of a spring-loaded pinch roller and idler roller mounted at the opposite ends of a single leaf spring so as to absorb shock and vibration and reduce wow and flutter. In addition, the invention includes positioning means on the cartridge which cooperate with corresponding means on the playback unit so as to enable the playback unit to replay cartridges of different sizes.
    • 本发明涉及一种包括具有双绞盘的重放单元和具有开口的磁带盒的磁带盒系统,该磁带盒定位成在重放单元重放磁带盒期间接收双重绞盘。 双绞线可以在两个相反方向中的任一个中旋转。 通过将磁带盒插入回放单元来控制旋转方向,并且旋转方向与磁带盒的取向一致。 当磁带盒以第一方向插入时,绞盘在第一方向上旋转,以便重播磁带上的信息的一半。 当墨盒向上翻转以处于第二方向时,绞盘在第二方向上旋转以重放磁带上的剩余信息。 回放单元包括用于感测带盒的取向以便正确地确定旋转绞盘的方向的装置。 本发明还包括使用安装在单个板簧的相对端处的弹簧加载的夹送辊和惰辊,以便吸收冲击和振动并减少哇和颤动。 此外,本发明包括在盒上的定位装置,其与重放单元上的对应装置配合,以使播放单元重播不同尺寸的盒。