公开(公告)号：US4849843A

公开(公告)日：1989-07-18

申请号：US289410

申请日：1988-12-21

申请人： Motoyoshi Fujita ,  Akikazu Kunuki ,  Noboru Uemura ,  Tsutomu Kotani ,  Shunpei Saeki ,  Toshiharu Kawano

发明人： Motoyoshi Fujita ,  Akikazu Kunuki ,  Noboru Uemura ,  Tsutomu Kotani ,  Shunpei Saeki ,  Toshiharu Kawano

IPC分类号： G11B5/465

CPC分类号： G11B5/465

摘要： A magnetic head of a cassette tape recorder set is demagnetized by a demagnetizer mounted in a tape cassette housing. The demagnetizer has an erase head which faces with the magnetic head which is subject to a demagnetizing action, a pair of rotatable rings which engage with spindles of the tape recorder set, energizing means for energizing said erase head with AC decreasing current, and coupling means for coupling said rings for simultaneous rotation of the rings.

摘要翻译： 盒式磁带录音机的磁头由安装在磁带盒外壳中的去磁器消磁。 去磁器具有与磁头对应的擦除头，该磁头经受退磁作用，与磁带记录器组的主轴接合的一对可旋转环，用于以AC减小电流激励所述擦除头的激励装置，以及耦合装置 用于联接所述环以同时旋转环。