JPH02173988A - Floating head slider - Google Patents

Abstract

PURPOSE:To stably run a head by providing at least one groove from the vicinity of the center of a sliding surface, where a floating force is generated, to the air outflow end side. CONSTITUTION:An electromagnetic conversion part 2 and grooves 1a are provided from the vicinity of the center of a sliding surface 1, where the floating force is generated, to an air outflow end a. Grooves are provided in the slider air outflow end part in this manner to narrow the minimum gap on the outflow end side furthermore without changing the minimum gap on the air inflow end part side, and thereby, a coil or an electromagnetic conversion element provided on the outflow end side approaches the surface of a recording medium and a high recording density and a large output are obtained. Since the minimum gap on the inflow end side is not changed, the head is stably run without colliding with minute projections existing on the medium surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a floating magnetic head used in magnetic disk drives and the like.

[Conventional technology]

A conventional floating head will be explained with reference to the drawings. FIG. 2 is an external view of a conventional example. Conventionally, this type of floating head flies at a very small distance above the surface of a magnetic head medium, and exchanges information with the medium using an electromagnetic transducer 12. The surfacing is
This utilizes the property that a constant distance is maintained by the air layer formed between the medium and the smooth surfaces 11 on both sides.

[Problem to be solved by the invention]

In the conventional floating head slider mentioned above, in order to improve the sensitivity of electromagnetic conversion, the minimum gap at the air outflow end is reduced.
The minimum gap at the air inflow end also becomes smaller, causing the air inflow end to collide with minute protrusions existing on the opposing medium surface, resulting in a disadvantage that the flying posture is disturbed and stable running is no longer possible.

[Means to solve the problem]

The floating head slider of the present invention is configured to have at least one groove on the air outflow end side from near the center of the sliding surface that generates the flying force.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

In FIG. 1, the slider of the present invention has an electromagnetic transducer 2 connected to an air inflow end a from near the center of a sliding surface 1 that generates levitation force.
and a groove 1&. According to the present invention, compared to a conventional slider, at the air outflow end a, the groove 1a does not participate in generating levitation force, and the slider flying surface 1 for generating levitation force is reduced, so air flows out. End 1a
The minimum gap will be smaller. Therefore, the electromagnetic converter 2
is closer to the recording medium surface. Since the air inflow end 1b is the same as the conventional one, the minimum gap remains the same as the conventional one.

〔Effect of the invention〕

As explained above, the present invention provides a groove at the air outflow end of the slider, thereby keeping the minimum clearance at the air inflow end the same as before, and by making the minimum clearance at the outflow end smaller. The coil or electromagnetic transducer provided on the side is close to the surface of the recording medium, which has the effect of making it possible to obtain higher recording density and greater output. In addition, since the minimum gap on the inlet end side is unchanged from the conventional one, it is possible to run stably without colliding with minute protrusions existing on the medium surface.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a magnetic head slider according to the present invention, and FIG. 2 is a perspective view of an embodiment of the prior art. 1...Smooth surface, 1a...Groove, a...
...Air outflow end, b...Air inflow end, 2...
...Electromagnetic conversion section. Agent: Susumu Uchihara, Patent Attorney / 2 Electromagnetic Transformation J History Department Figure 1 Figure 2

Claims (1)

[Claims] A floating head slider that flies above the surface of a magnetic recording medium using dynamic pressure generated by running the medium,
A floating head slider having at least one groove extending from near the center of a sliding surface that generates floating force to an air outlet end.