Head slider having streamlined pads
AssigneeFujitsu Limited
InventorsYoshimichi Asanai, Masaharu Sugimoto
Life of this patent
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Abstract
A magnetic head slider having an air inlet end an an air outlet end, and includes a pair of rails formed on a disk opposing surface opposed to a magnetic disk, each of the rails having a flat air bearing surface for generating a flying force during rotation of the disk, and an electromagnetic transducer formed on one of the rails in the vicinity of the air outlet end. The magnetic head slider further includes a plurality of streamlined pads formed on the air bearing surfaces of the rails in the vicinity of the air inlet end and in the vicinity of the air outlet end.
Claims8
A head slider having an air inlet end facing an air flow generated by a rotating disk and entering said head slider and an air outlet end, where the air flow exits said head slider, comprising:
- a pair of rails formed on a disk opposing surface opposed to the disk, each of said rails having a flat air bearing surface for generating a flying force during rotation of the disk, and a tapering surface formed near the air inlet end and extending continuously to said air bearing surface;
- and
- a plurality of pads formed on said air bearing surfaces of said rails in the vicinity of the air inlet end and in the vicinity of the air outlet end, each of said pads having a front arcuate portion facing the air flow entering said head slider, a first straight edge extending from a first side of said front arcuate portion toward a longitudinal center line of said pad, and a second straight edge extending from a second side of said front arcuate portion toward said longitudinal center line of said pad, said first and second straight edges being at a predetermined angle with respect to said longitudinal center line on first and second sides of said longitudinal center line on a horizontal plane, respectively.
A disk drive comprising:
- a housing;
- a disk rotatably mounted in said housing;
- a head slider having a head for reading/writing data from/to said disk;
- and
- an actuator for moving said head slider across tracks of said disk;
- said head slider comprising:
- an air inlet end;
- an air outlet end formed on the opposite side of said air inlet end;
- a pair of rails formed on a disk opposing surface opposed to said disk, each of said rails having a flat air bearing surface for generating a flying force during rotation of said disk, and a tapering surface formed near said air inlet end and extending continuously to said air bearing surface;
- and
- a plurality of streamlinedpads formed on said airbearing surfaces of said rails in the vicinity of said air inlet end and in the vicinity of said air outlet end,
- said pads having a front arcuate portion and a rear portion which tapers from said front arcuate portion toward said air outlet end,
- said arcuate portion having a radius R facing said air inlet end, a width D1 in a direction perpendicular to an innermost air entering direction, and a width D2 in a direction perpendicular to an outermost air entering direction of the head slider, such that D 1=D2=2R,
- said rear portion having two straight side edges forming an angle θ therebetween, such that a sum of an absolute value of an inner yaw angle θ1 between a longitudinal center line and an inner side edge of said two straight side edges of a corresponding pad and an absolute value of an outer yaw angle θ2 between said longitudinal center line and an outer side edge of said two straight side edges of said corresponding pad equals said angle θ.
Dependencies are inferred from the claim text.