| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary magnetic head device preventing a ground fault and miniaturizing the device. SOLUTION: This device is the rotary magnetic head device recording a signal on a magnetic tape and reproducing the signal on the magnetic tape by rotating a magnetic head 2, and is provided with a shaft 5, a fixed drum 3 integrated with the shaft 5, a rotary drum 1 having the magnetic head 2 and rotating around the shaft 5 of the fixed drum 3, first bearing 4 and second bearing 7 rotatably supporting the shaft 5 and a useless current removal means 30 arranged between the first bearing 4 and the second bearing 7 and for removing a useless current occurring in the rotary drum 1 and the magnetic head 2.</p> |
