| 摘要 |
A magnetic head loading mechanism for loading two magnetic heads 2(A) and 2(B), each of which is attached at a tip of respective one of supporting arms 3 and 3, onto a surface of a magnetic disc 1 to be tested being rotated with high rotation speed, comprising: two adopters 71(A) and 71(B), on which are fixed the supporting arms 3 and 3 in a detachable manner; two head position adjusting mechanisms 74(A) and 74(B) for rotating the adopters 71(A) and 71(B) so as to bring the supporting arms 3 and 3 into either an escaping condition in which they are far away from the surfaces of the magnetic disc 1 each by a rotation angle of 90 DEG , or into an approaching condition in which they are near to the surface of the magnetic disc 1 to be tested; and a mounting mechanism including a common elevating block 731 formed with inclined surfaces, and rollers 714 and 714, each being provided for the adopters 71(A) and 71(B) and being in contact with the inclined surfaces of the elevating block in the approaching condition, thereby moving the magnetic heads 2(A) and 2(B) at the tip of the supporting arms 3 and 3 onto both surfaces of the magnetic disc 1 by a small amount of rotation in the angle thereof, respectively.
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