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    • 3. 发明申请
    • SAFETY DEVICE FOR CASSETTES
    • CASSETTES安全装置
    • WO1990007183A1
    • 1990-06-28
    • PCT/SE1989000733
    • 1989-12-15
    • N W TRADING APSHOLMGREN, Bertil
    • N W TRADING APS
    • G11B33/04
    • E05B73/0023Y10T292/0957Y10T292/1091
    • Safety device for such a cassette for a compact disc, a cassette tape or the like, which comprises two hingedly interconnected rectangular cassette halves. The safety device can be mounted on the outside of the cassette encircling the cassette to prevent opening thereof and is provided with a lock member for locking engagement with the cassette, which comprises a rotary bolt (22) enclosed in a lock housing (20), to be adjusted between engaged position and disengaged position from the outside of the lock housing. A spring blade (30) of magnet material is provided as a latch member for the rotary bolt, said spring blade being arranged to prevent in a latching position rotation of the rotary bolt from the engaged position and being operable against spring bias by magnetic attraction from the outside of the lock housing from said engaged position unlatching the rotary bolt to allow rotation thereof to the disengaged position.
    • 用于这种用于光盘,盒式磁带等的盒的安全装置,其包括两个铰接地互连的矩形盒半部。 安全装置可以安装在环绕磁带盒的磁带盒的外部,以防止其打开,并且设置有用于与磁带盒锁定接合的锁定构件,该锁定构件包括封闭在锁定壳体(20)中的旋转螺栓(22) 在锁定壳体的外部在接合位置和脱离位置之间进行调节。 磁性材料的弹簧片(30)设置为用于旋转螺栓的闩锁构件,所述弹簧片布置成防止旋转螺栓从接合位置旋转的闩锁位置,并且能够通过磁吸引力从弹簧偏压 锁定壳体的外部从所述接合位置解锁旋转螺栓以允许其旋转到脱离位置。