Disk drive capable of restricting unexpected movement of a head suspension using a latch member to restrict movement of the suspension and elasticity of the suspension to enable a head load tab to move down a ramp inclined surface
View Patent ↗A guiding passage is formed on a ramp member. The guiding passage defines an inclined surface angled towards plane including the surface of a recording disk at a position toward an inoperative position. A restriction member is allowed to restrict the movement of the load tab on the inclined surface when the load tab moves from the inoperative position toward the recording disk. If an impact acts on a recording disk drive when the recording disk stands still, the restriction member serves to restrict the movement of the load tab on the inclined surface. The elasticity of a head suspension enables the load tab to move down the inclined surface. The downward movement of the load tab causes a reduction in deformation of the head suspension. The head suspension thus receives a smaller load.
1. A disk drive comprising:
a head suspension designed to support a head slider;
a load member defined at a tip end of the head suspension;
a ramp member located at a location outside a recording disk so as to receive the load member at an inoperative position when the recording disk stands still;
a guiding passage formed on the ramp member and defining an inclined surface getting closer to a reference plane including a surface of the recording disk toward the inoperative position; and
a restriction member designed to restrict movement of the load member on the inclined surface when the load member moves from the inoperative position toward the recording disk,
wherein after the movement of the load member is restricted, the load member slides on the inclined surface toward the inoperative position based on elasticity of the head suspension.
2. The disk drive according to claim 1 , wherein the inoperative position is defined on the inclined surface.
3. The disk drive according to claim 1 , wherein said inclined surface comprises:
a first inclined passage designed to get closer to the reference plane in a radially outward direction of the recording disk along a first imaginary plane intersecting with the reference plane by a first inclination angle; and
a second inclined passage directly connected to the first inclined passage at a position outside the first inclined passage and designed to get closer to the reference plane in a radially outward direction of the recording disk along a second imaginary plane intersecting with the reference plane by a second inclination angle smaller than the first inclination angle.
4. A disk drive comprising:
a head suspension designed to support a head slider;
a load member defined at a tip end of the head suspension; and
a ramp member located at a location outside a recording disk so as to receive the load member at an inoperative position when the recording disk stands still, wherein
said ramp member defines an inclined surface designed to convert elasticity of the head suspension to a driving force to slide the load member on the inclined surface to the inoperative position.
5. The disk drive according to claim 4 , wherein said inclined surface comprises:
a first inclined passage designed to get closer to a reference plane including a surface of the recording disk in a radially outward direction of the recording disk along a first imaginary plane intersecting with the reference plane by a first inclination angle; and
a second inclined passage located at a position outside the first inclined passage and designed to get closer to the reference plane in a radially outward direction of the recording disk along a second imaginary plane intersecting with the reference plane by a second inclination angle smaller than the first inclination angle.