Recording disk drive
View Patent ↗A head actuator supports a head slider and designed to swing around a support shaft over first and second swinging ranges adjacent each other. A restraint member is designed to restrain the swinging movement of the head actuator from separating from the first swinging range toward the second swinging range. A restriction member is designed to restrict the swinging movement of the head actuator from separating from the second swinging range toward the first swinging range. The second swinging range is excluded from the actual swinging range of the head actuator when the restraint member operates. The swinging range of the head actuator can thus be reduced or narrowed. Likewise, the first swinging range is excluded from the actual swinging range of the head actuator when the restriction member operates. The swinging range of the head actuator can thus be reduced or narrowed.
1. A recording disk drive comprising:
a recording disk;
a head slider related to the recording disk;
a head actuator supporting the head slider and designed to swing around a support shaft over first and second swinging ranges adjacent each other;
a restraint member designed to restrain swinging movement of the head actuator from separating from the first swinging range toward the second swinging range; and
a restriction member designed to restrict the swinging movement of the head actuator from separating from the second swinging range toward the first swinging range.
2. The recording disk drive according to claim 1 , wherein said head slider is held at a position outside an outermost recording track on the recording disk when the head actuator swings over the first swinging range.
3. The recording disk drive according to claim 1 , wherein said head slider is held at a position inside an outer periphery of the recording disk when the head actuator swings over the second swinging range.
4. The recording disk drive according to claim 3 , wherein said restraint member comprises a stop designed to move along a movement path extending in parallel with the support shaft.
5. The recording disk drive according to claim 4 , wherein said restriction member comprises a stop designed to move along a movement path extending in parallel with the support shaft.
6. The recording disk drive according to claim 5 , wherein said stop of the restraint member serves as the stop of the restriction member.
7. The recording disk drive according to claim 6 , wherein a collision piece is fixed on the head actuator, said collision piece designed to move across the movement path of the stop when the head actuator swings.
8. The recording disk drive according to claim 7 , further comprising:
a swinging member designed to swing around a rotation shaft and having an arm member extending in a first direction from the rotation shaft, said swinging member supporting the stop at a tip end of the arm member;
a driven piece integral to the swinging member and extending in a second direction opposite to the first direction; and
a drive source designed to generate movement of the driven piece around the rotation shaft.
9. The recording disk drive according to claim 8 , wherein a depression is formed on the arm member, said depression allowing movement of the collision piece between the stop and the rotation shaft.
10. A recording disk drive comprising:
a recording disk;
a ramp member located at a position outside the recording disk;
a head slider related to the recording disk;
a head actuator supporting the head slider and designed to swing around a support shaft from a first swinging range, where the head actuator is contacted with the ramp member, to a second swinging range, where the head actuator separates from the ramp member; and
a restriction member designed to restrict swinging movement of the head actuator from separating from the second swinging range toward the first swinging range.
11. The recording disk drive according to claim 10 , wherein said restriction member comprises a stop designed to move along a movement path extending in parallel with the support shaft.
12. The recording disk drive according to claim 11 , further comprising a restraint member designed to restrain the swinging movement of the head actuator from separating from the first swinging range toward the second swinging range.
13. The recording disk drive according to claim 12 , wherein said restraint member comprises a stop designed to move along a movement path extending in parallel with the support shaft.
14. The recording disk drive according to claim 13 , wherein said stop of the restraint member serves as the stop of the restriction member.
15. The recording disk drive according to claim 14 , wherein a collision piece is fixed on the head actuator, said collision piece designed to move across the movement path of the stop when the head actuator swings.
16. The recording disk drive according to claim 15 , further comprising:
a swinging member designed to swing around a rotation shaft and having an arm member extending in a first direction from the rotation shaft, said swinging member supporting the stop at a tip end of the arm member;
a driven piece integral to the swinging member and extending in a second direction opposite to the first direction; and
a drive source designed to generate movement of the driven piece around the rotation shaft.
17. The recording disk drive according to claim 16 , wherein a depression is formed on the arm member, said depression allowing movement of the collision piece between the stop and the rotation shaft.