ROTARY HEAD DEVICE

摘要

PURPOSE:To attain thin profile by fitting simultaneously a rotary cylinder and a rotor magnet to a rotary disk. CONSTITUTION:The cylinder rotary transformer rotor side 60 is fixed to the rotary disk 51 and the cylindrical rotary transformer rotor side 60 constitutes an inductance coupling while being opposed with a gap to the cylindrical rotary transformer rotor side 59 fixed to a fixed cylinder 55 so as to be coaxial to a fixed main shaft 52. Moreover, a rotary magnet unit 56 is fitted to the lower end face of the rotary disk 51 and the rotary disk 51 is driven by a drive torque given by a stator unit 70 fixed to the fixing cylinder 55. The rotary cylinder 58 provided with a magnetic head 57 is fitted to the rotary disk 51 and a magnetic head 57 is connected electrically with the rotary transformer rotor side 60 via a printed wiring board 67.