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    • 1. 发明申请
    • ROTARY HEAD ASSEMBLY
    • 旋转头组件
    • WO1984000438A1
    • 1984-02-02
    • PCT/JP1983000214
    • 1983-07-05
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.IMANISHI, KiyokazuICHIYANAGI, TakashiSAKURAI, YasuoNAKA, HiroyukiNAKAGAWA, Koji
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • G11B15/60
    • G11B15/61
    • In a rotary head assembly which has a stationary cylinder (21) with a fixed cylindrical part, and a rotatable rotary member (19) of a diameter substantially equal to that of the cylinder (21) which is arranged with a very small gap on the same shaft as the cylinder (21) and holds a magnetic head (29) so that a magnetic tape is helically wound and fed thereon, a pump-out type of spiral group (20) is formed on part or all of the periphery of either of the surfaces of the opposed rotary unit formed between the cylinder (21) and the rotary member (19), a floating force due to pneumatic pressure is generated, not only on the rotary cylinder, but also on the stationary cylinder so that the feeding of the magnetic tape is stable and smooth, thereby basically eliminating the phenomena of tape flutter and adhesion, and also tape damage or cylinder wear due to friction.
    • 具有直径为设有固定圆筒部固定缸(21),和一个可转动件(19)基本上等于气缸的旋转磁头组件,其被布置成与一个非常小的间隙在相同的(21) (21)并且保持磁头(29),以便允许磁带螺旋卷绕并在头上滚动。 形成在部分或在每个液压缸(21)和所述旋转构件(19)之间形成的旋转单元的相对表面的整个周边,力A组螺旋泵送类型的(20) 浮动由于空气压力产生不仅对旋转滚筒,而且在固定汽缸这样的磁带的,滑动是稳定的和稳定的,基本上消除了哇条带的现象和粘附性, 以及由摩擦造成的带的损坏或气缸的磨损。