| 摘要 |
PURPOSE:To decrease a malfunction caused by a noise, by allowing a signal shielding wire whose one end is connected to a magnetic head, to run along a head arm, and shortening the length. CONSTITUTION:One end of a signal shielding wire 27 is soldered to a magnetic head of one end of a head arm 6 which is made of a metal and rotates freely around a shaft 7, and the middle part is provided on an arm 6, between the head and the shaft, embedded in a slit 28 being a little narrower than the diameter of the wire 27, and having a hole of the diameter through which the wire 27 can be inserted, and stuck and fixed in the slit part. The other end has a margin to some extent and connected to a connector 29 of a circuit board. According to such a constitution, a play of the signal shielding wire 27 is only a movable part l, the greater part of its thickness is housed in the slit and the whole head becomes thin, and the dimension l is short, therefore, even if a signal of the magnetic head 5 is feeble, a malfunction caused by a noise can be reduced. |
