A magnetic head positioning mechanism is provided which is excellent in shock-resistance
and can achieve high positioning accuracy. By constructing the magnetic head positioning
mechanism so that a fine actuator section is composed of an actuator spring made
from a thin steel plate, a base plate made from a thick steel plate to be junctioned
to the actuator spring, stiffness of the fine actuator section in a vertical direction
can be improved with flexibility of a driving spring section mounted on the actuator
spring being still kept, that is, with sufficient positioning accuracy and satisfactory
stroke being maintained. Moreover, by designing a strength of the fine actuator
section so that the actuator spring and a holder arm do not overlap when the base
plate is connected to the holder arm, the fine actuator section can be made thin
and implementing of the fine actuator section among narrow plates in a positioning
device is made easy.
