| 摘要 |
<p>A lower head arm (32b) is received in an opening (37) formed in a frame plate (3) when it is in the standby position where a head (34b) supported on the lower head arm (32b) does not access a magnetic record disk (13). This head arm and another (upper) head arm (32a) can keep a predetermined interval between them even in a thin magnetic storage in the form of a card. An electromagnetic shield is attached to the opening to protect heads (34a, 34b).</p> |
