发明名称 DEGAUSSING DEVICE OF MAGNETIC RECORDING SHEET
摘要 PURPOSE:To adhere stably a sheet and a deleting head and to delete a recording without fail by inclining and installing a deleting head a little to the outer circumference side for the magnetic sheet and pushing down the head with a pad. CONSTITUTION:An inner circumference side upper end part 2a of a deleting head 2 is located at the position evacuated a little from a sheet 1 and an outer circumference side upper end part 2b is further located at the position. An extention line (l) of the upper end part ridgeline of a head 2 intersects at a point A between a sheet hub outer circumference part 3a and a sheet innermost circumference track and like that, the heat is installed a little in inclination. Consequently, when the head is pushed down with a pad 4, a cross section of the sheet 1 goes to be a straight line. In this way, the sheet 1 is stably adhered with the deleting head 2 and the recording of the sheet 1 can be deleted without fail.
申请公布号 JPS61122904(A) 申请公布日期 1986.06.10
申请号 JP19840242425 申请日期 1984.11.19
申请人 NIPPON KOGAKU KK <NIKON> 发明人 KUROKAWA YUTAKA;OKUYAMA TAKESHI
分类号 G11B5/325;G11B5/024;G11B5/187;(IPC1-7):G11B5/024 主分类号 G11B5/325
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