| 摘要 |
An inertial latching mechanism of high reliability, which can be incorporated in a slim profile disk drive or the like information recorders. Describing practically, the mechanism includes freely revolvable inertia arm 6 which couples with actuator 3when head arm is in a shunt position or the vicinity, whereas the coupling is released when the actuator is in proximity with disk 1 or the neighborhood; a drive means for holding inertia arm 6 to a right posture by taking advantage of magnetic pulling force at the place where the inertia arm is released from the coupling with actuator 3. Furthermore, coil arm 9's restriction section 9b and inertia arm 6's contact section 6b are disposed opposed to each other for forming a revolution restriction means which restricts an anti-clockwise revolution of inertia arm 6, as viewed from the above, when coil arm 9's coupling section 9a and inertia arm 6's coupling section 6a are in uncoupled state. The above-configured inertial latching mechanism can be used in a magnetic disk drive, an optical disk drive, a magneto-optical disk drive and other disk information recorders.
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