发明名称 A cassette reel having an indicator for tape volume with an upper flange.
摘要 <p>A cassette reel for use with a video cassette having an upper flange 93) formed of a transparent plate and a plurality of tape amount indicators (20-22), each of the indicators (20-22) being formed of a plurality of crimped portions provided on the outer surface of the upper flange in the diametrical direction thereof, wherein the innermost crimped portions (20a, 21a, 22a) of the plurality of indicators are higher than the remaining crimped portions, so that when the cassette reels are stacked up and transported for the assembly, the transparent portion of the cassette reel can be protected from being damaged and the commercial value of the cassette reel can be increased without being awkwardly designed.</p>
申请公布号 EP0281292(A2) 申请公布日期 1988.09.07
申请号 EP19880301443 申请日期 1988.02.19
申请人 SONY CORPORATION 发明人 TATENO, SHIGERU;OZAWA, KAZUO
分类号 G11B23/087;G11B23/037;G11B23/38 主分类号 G11B23/087
代理机构 代理人
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