发明名称 METHOD FOR PREVENTING HUB OF CASSETTE TAPE FROM TURNING
摘要 PURPOSE:To prevent a hub from turning because of contact between an elastic member and a seal member by inserting an elastic member to a hub hole, providing the elastic member projectingly from the surface of a cassette half of a cassette tape and sealing the cassette halve by a seal member. CONSTITUTION:The rod shaped elastic member 4 made of a foamed synthetic resin or the like is inserted to a hub hole 5 and cut off so that the length t1 of the elastic member is t1>T in comparison with the thickness T of the cassette half. A maximum outer size (d) of the elastic member 4 is set as D<d in comparison with the inner diameter D between projections of the hub 1, the hub 1 and the elastic member 4 are engaged and the elastic member 4 is not fallen down. The cassette halves are sealed by the film form seal member 6. The elastic member 4 projected from the cassette half surface is pressed by the tension of the seal member 6, the thickness is almost equal to the surface thickness T of the cassette half, the elastic member 4 and the seal member 6 are in press contact state, the elastic member 4 absorbs vibration even if a tape 2 and a hub 3 are vibrated so as to prevent the turning of the hub.
申请公布号 JPS59198576(A) 申请公布日期 1984.11.10
申请号 JP19830073136 申请日期 1983.04.26
申请人 NIPPON COLUMBIA KK 发明人 MIKI TAKASHI;HARA KATSUHIKO
分类号 B65D85/575;G11B23/02 主分类号 B65D85/575
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