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    • 14. 发明授权
    • Magnetic tape cassette having a sliding closure member that locks the
winding hubs
    • 磁带盒具有锁定卷绕轮毂的滑动关闭构件
    • US4961124A
    • 1990-10-02
    • US255613
    • 1988-10-11
    • Rudolf BreuerHubert Brunner
    • Rudolf BreuerHubert Brunner
    • G11B23/087
    • G11B23/08742
    • An improved magnetic tape cassette with locking elements for the magnetic tape, through which the opening formed in the front side of the cassette as well as the cut out regions of the winding shaft entry openings are effectively sealed, is characterized in that the slide (15) adjacent to the cassette underside (5) possesses at least two locking catches (21), which move in the grooves (22) of the cassette lower part and which are positioned so that they engage with the toothed rings of the winding hubs (6a,6b) when the slide is in its locked state. Additionally, the slide comprises in the center of its front part a catch, which dips into a groove (25), open forwards as well as downwards, on the outside of the cassette lower part. Through the construction according to the invention, the otherwise customary reel brake together with the prestressing spring becomes superfluous (FIG. 3).
    • 具有用于磁带的锁定元件的改进的磁带盒,其中形成在磁带盒的前侧中的开口以及卷轴进入开口的切出区域被有效地密封,其特征在于,滑块(15 )具有至少两个锁定卡盘(21),它们在盒下部的凹槽(22)中移动并被定位成使得它们与绕组轮毂(6a)的齿环啮合 ,6b)当滑块处于其锁定状态时。 此外,滑动件在其前部的中心包括凹部,该卡扣在盒下部的外侧上凹入到向前和向下的凹槽(25)中。 通过根据本发明的结构,常规卷轴制动器与预应力弹簧一起变得多余(图3)。
    • 15. 发明授权
    • Video cassette
    • 录像带
    • US4623105A
    • 1986-11-18
    • US802234
    • 1985-11-27
    • Albert PertzschHubert BrunnerLudwig Zeroni
    • Albert PertzschHubert BrunnerLudwig Zeroni
    • G11B23/087G03B1/04G11B15/32
    • G11B23/08721
    • A video cassette with two reels which are arranged in plane-parallel fashion for winding and unwinding a magnetic tape and with a locking mechanism consisting of a pivotal two-armed pawl for each reel which can be slipped on a support. One lever arm engages in a toothed reel flange in the inoperative position of the cassette and the other lever arm rests on the disengaging component of a vertically rotatable release lever. The locking mechanism also includes moulded pre-tensioning arms, the deflection points of the pre-tensioning arms rigid with the housing at the support lie close to the rotational axis of the pawl.
    • 具有两个卷盘的盒式录像带,其以平行平行的方式布置,用于卷绕和展开磁带,并且具有锁定机构,该锁定机构由每个卷轴上的可枢转的双臂爪构成,该棘爪可以滑动在支撑件上。 一个杠杆臂在磁带的非工作位置处接合齿形卷轴法兰,另一个杠杆臂搁置在可垂直旋转的释放杆的分离部件上。 锁定机构还包括模制的预张紧臂,预拉伸臂的刚性与支撑件处的壳体的偏转点靠近棘爪的旋转轴线。