发明名称 ROTATING DRUM FOR MAGNETIC RECORDING AND REPRODUCING DEVICE
摘要 PROBLEM TO BE SOLVED: To decrease the noise level of tape squeaking of a rotating drum. SOLUTION: In a rotating drum, an upper cylinder 5, whose lower surface mounts a magnetic head 3 and around which a magnetic tape 6 is wound, is freely rotatably mounted over a lower cylinder 7 fixed to a chassis 1 and a clearance 4 into which the magnetic head 3 is exposed is provided between the upper cylinder 5 and the lower cylinder 7. A taper part 50 inclined to the inside of the peripheral surface of the upper cylinder 5 is formed in the angle part 53 being in contact with the magnetic tape 6 at the lower end of the upper cylinder 5 and the tip of the magnetic head 3 is recessed by >=0μm and <20μm from the peripheral surface of the upper cylinder 5. The lower end (a) of the taper part 50 is located inside the tip of the magnetic head 3.
申请公布号 JPH09231528(A) 申请公布日期 1997.09.05
申请号 JP19960036091 申请日期 1996.02.23
申请人 SANYO ELECTRIC CO LTD 发明人 ASABA AKIRA
分类号 G11B5/52;G11B5/53;(IPC1-7):G11B5/52 主分类号 G11B5/52
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