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    • 48. 发明授权
    • Magnetic recording and reproducing apparatus
    • 磁记录和再现设备
    • US5710679A
    • 1998-01-20
    • US430130
    • 1995-04-25
    • Hidetoshi MatsuokaJunji KobayashiOsamu NagatsukaAkira TomitakaOsamu Morita
    • Hidetoshi MatsuokaJunji KobayashiOsamu NagatsukaAkira TomitakaOsamu Morita
    • G11B15/665G11B5/027
    • G11B15/6656
    • In a magnetic recording and reproducing apparatus for recording and reproducing information by pulling out a tape from a cassette by revolving a pair of tape pull-out members in opposite directions with a tape loading mechanism and by wrapping the tape around a rotary drum, a tape pull-out aiding member is arranged in combination with one of the tape pull-out members; and a differential mechanism is arranged between the tape pull-out aiding member and the tape pull-out member to cause the two members to revolve at different angles of revolution in such a way as to give a desired angle of inclination of the tape relative to the rotary drum. The differential mechanism is formed jointly by a slide member which is slidable in the direction of revolution, the tape pull-out aiding member being disposed at the slide member, and a positioning member which is arranged to lock the tape pull-out aiding member by restricting its movement in such a way as to cause two members to revolve at the different angles of revolution.
    • 在磁记录和重放装置中,通过用带装载机构以相反的方向旋转一对磁带拉出部件并且将磁带缠绕在旋转磁鼓上,通过从磁带盒拉出磁带来记录和再现信息,磁带 拉出辅助构件与磁带拉出构件中的一个组合布置; 并且在带拉出辅助构件和带拉出构件之间布置有差速机构,以使两个构件以不同的旋转角旋转,以便使带相对于 旋转鼓。 差速机构由可沿旋转方向滑动的滑动构件,设置在滑动构件上的带拉出辅助构件和定位构件联合地形成,该定位构件布置成通过以下方式将带拉出辅助构件锁定 限制其运动,使两个成员以不同的革命角度转向。
    • 49. 发明授权
    • Recording and/or reproducing apparatus accommodating different-sized
cassettes and including a tension detecting mechanism arranged in
accordance with reel base positions
    • 记录和/或再现装置,其容纳不同尺寸的盒,并包括根据卷盘基座位置布置的张力检测机构
    • US5625509A
    • 1997-04-29
    • US280505
    • 1994-07-22
    • Hidetoshi Matsuoka
    • Hidetoshi Matsuoka
    • G11B15/43G11B15/665G11B25/06G11B15/32
    • G11B15/43G11B25/066G11B15/6653
    • An apparatus performs recording and/or reproduction of signals by a head of a drum with which a tape-like recording medium is brought into contact while being moved under a fixed tension from a reel engaging a supply reel base to a reel engaging a take-up reel base. An arm retains a tension post which presses against the recording medium, forming a predetermined path to detect a tension thereof. One end of the arm is pivotally supported, and the arm is urged by a spring so as to allow the tension post to elastically press against the recording medium. At least one end of a band brake for loading a braking torque on the supply reel base is locked to the arm. The locking points of both two ends of the band brake are at positions which are substantially symmetrical with respect to a perpendicular bisector of a line connecting a center of the supply reel base when a first recording tape cassette is used to a center of the supply reel base when a second recording tape cassette having a size different from that of the first cassette is used.
    • 一种装置通过磁带头进行信号的记录和/或再现,所述磁头的头部在被固定的张力下从带盘状的记录介质接合,从与供带盘基座接合的卷轴接合, 卷轴底座。 臂保持压靠记录介质的张紧柱,形成预定路径以检测其张力。 臂的一端被枢转地支撑,并且臂被弹簧推动,以便使张紧柱弹性地压靠在记录介质上。 用于将制动扭矩加载在供带盘基座上的带式制动器的至少一端被锁定到臂上。 带式制动器的两端的锁定点在使用第一记录带盒到供带盘的中心时相对于连接供带盘基座的中心的线的垂直平分线基本对称的位置 当使用具有与第一盒的尺寸不同的尺寸的第二记录带盒时,基座。