JPH0362375A - Magnetic head device - Google Patents

Abstract

PURPOSE:To improve the reliability by providing a slider to a position whose direction is coincident with a running direction of a recording medium from a free end toward a fixed end of a load spring and an electromagnetic transducer onto a slide slide face close of the fixed end of the load spring thereby stabilizing the floating attitude of the slider. CONSTITUTION:A gimbal spring 53 supporting a slider 2 while allowing angular motion in two left/right and front/back directions is fixed to the tip of the free end of the load spring 54. Then the slider 2 is provided to a position whose direction is coincident with a running direction A of a recording medium 50 from the free end toward the fixed end of the load spring 54 and an electromagnetic transducer 1 is equipped with the side face of the slider 2 closer to the fixed end of the load spring 54. When the recording medium 50 is driven at a high speed in the direction from the free end to the fixed end of the load spring 54, the side of the slider 2 provided with a chamfered part is driven toward the direction B around the electromagnetic transducer 1 and the electromagnetic transducer 1 applies write and readout with a prescribed interval from the surface of the recording medium 50 at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic head device, and particularly to a magnetic head device suitable for an in-line type or an incline type magnetic head.

(Conventional technology) A conventional example is shown in FIG. 3 and FIG. 4.

The conventional example shown in FIG. 3 includes an electromagnetic transducer 51 that writes data to a magnetic recording medium 50 and outputs data continuously, and a fixed electromagnetic transducer 51 that follows the air flow as the recording medium 50 rotates. A slider 52 that floats from the surface of the slider 50, a gimbal spring 53 that allows the slider 52 to move angularly in two directions, front, rear, left and right, and a load spring 54 that fixes the gimbal spring 53 to its free end 54a side. have. This load spring 54 serves as a positioning mechanism for the magnetic head 100 (
It is fixed to an arm portion 55 (not shown). Further, the slider 52 has a chamfered corner 52a facing the recording medium 50 on the upstream side of the airflow.

The recording medium 50 is rotating at high speed in the direction A in FIG. 4, and the slider 52 is floated by air flow caused by the rotation of the recording medium 50.

An electromagnetic transducer 51 is mounted on this slider 52 on the downstream side of the air flow. Also, this slider 52
is attached to the gimbal spring 53 on the upstream side. Therefore, the slider 52 rotates from its downstream side to the upstream side where the chamfered portion 52a is located (direction B in FIG. 4) due to the air flow accompanying the rotation of the recording medium 50.

[Problem to be solved by the invention]

However, in general, the chamfered portion 52a of the slider 52
The air film stiffness near the electromagnetic transducer 51 is smaller than that near the electromagnetic transducer 51, and the flying height variation due to disturbance is large. Furthermore, in the slider 52 supported by the gimbal spring 53,
Fixing part 54b between load spring 54 and arm part 55
It is known that the slider end 52b, which is closer to the slider end 52b, has a larger change in flying height with respect to a change in the distance between the arm part 55 and the recording medium 50 (hereinafter referred to as Z hide) than the other end 52a.

Therefore, in the above conventional example, since the chamfered portion 52a of the slider 52 is provided on the side closer to the fixing portion 54b between the load spring 54 and the arm portion 55, the chamfered portion 52a
The floating height fluctuation with respect to the Z hide of 2a increases,
Since the fluctuation in the rotation direction (direction B in Figure 4) increases,
The floating posture became unstable, resulting in the inconvenience that highly reliable writing and reading operations could not be expected.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic head device that improves the disadvantages seen in the conventional example and can be expected to perform highly reliable write and read operations.

[Means to solve the problem]

The present invention provides an electromagnetic transducer that writes and outputs data to a magnetic recording medium, a slider that fixes the electromagnetic transducer and floats from the surface of the recording medium according to the airflow accompanying the rotation of the recording medium, and the slider. It has a gimbal spring that supports the gimbal spring while allowing angular movement in two directions: front, rear, right, and left, and a load spring that fixes the gimbal spring to the free end of the gimbal spring. The slider is placed in a position where the rotation direction of the recording medium is from the free end of the load spring toward the fixed end, and the electromagnetic transducer is installed on the side of the slider near the fixed end of the load spring. ing. This aims to achieve the above-mentioned objective.

[Operation] The recording medium rotates at high speed from the free end to the fixed end of the load spring (direction A in Figure 2), and due to the accompanying air flow, the slider rotates around the electromagnetic transducer located downstream of the recording medium. The side with the chamfered portion makes a rotational movement (direction B in Figure 2). This slider is fixed to the arm section by a gimbal spring via a load spring, and the electromagnetic transducer always maintains a constant distance from the surface of the recording medium to write and output records.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2. Here, the same reference numerals are used for the same constituent members as in the conventional example described above.

In the embodiment shown in FIG. 1, the magnetic recording medium 50
an electromagnetic transducer 1 for writing and outputting data; and a slider 2 to which the electromagnetic transducer 1 is fixed and which floats from the surface of the recording medium 50 according to the air flow accompanying the rotation of the recording medium 50.
It has a gimbal spring 53 that supports the slider 2 by allowing angular movement in two directions: front, rear, left, and right, and a load spring 54 that fixes the gimbal spring 53 to its tip on the free end 54a side. The rotation direction of the recording medium 50 is set to the free end side 5 of the load spring 54.
The slider 2 is disposed at a position from 4a toward the fixed end 54b, and the electromagnetic transducer 1 is installed on the side surface of the slider 2 near the fixed end 54b of the load spring 54.

This load spring 54 is connected to the magnetic head 100.
It is fixed to an arm portion 55 of a positioning mechanism (not shown).

Here, the slider 2 has a chamfer 2a at one end of the corner facing the magnetic disk. Recording medium 5
The air flow caused by the rotation of the magnetic disk (50) as 0 slides between the slider 2 and the magnetic disk (50) through the chamfered portion 2a of the slider 2, thereby lifting the slider 2 above the surface of the magnetic disk (50). ing. The slider 2 is attached to a load spring 54 via a gimbal spring 53 so as to be rotatable back and forth and left and right. Further, the electromagnetic transducer 1 is located on the downstream side of the air flow on the slider 2, that is, at the fixed end 5 of the load spring 54.
It is attached to the 4b side.

Next, the operation will be explained.

The magnetic disk (50), which is the recording medium 50, is rotating at high speed in the direction A in FIG.
) rotation etc., the air flows in the direction A in the figure, that is, from the free end 54a of the load spring 54 to the fixed end 54.
It occurs in the direction of b. This air flow flows between the chamfered portion 2a of the slider 2 and the magnetic disk (50), thereby causing the slider 2 to float above the surface of the magnetic disk (50). In this state, the arm portion 55 is driven by a magnetic head positioning mechanism (not shown) to determine the position of the magnetic head 100 with respect to the magnetic disk (50) of the electromagnetic transducer 1.

Since the slider 2 is rotatably fixed by a gimbal spring 53, when the chamfered portion 2a of the slider 2 floats, it rotates around the electromagnetic transducer 1 located downstream thereof (see Fig. 2). B direction). but,
At this time, the rotation speed of the magnetic disk (50) is adjusted such that the electromagnetic transducer 1 maintains a constant distance from the surface of the magnetic disk (50).

Gimbal spring 53. The rigidity of the load spring 54, the shape of the slider 2, etc. are set to enable writing and continuous output on the magnetic disk (50). This slider 2 is fixed to an arm portion 55 via a load spring 54 by a gimbal spring 53.
The electromagnetic transducer 1 always maintains a constant distance from the surface of the recording medium 50 to write and output records.

〔Effect of the invention〕

As explained above, in the present invention, the slider is disposed at a position where the rotational direction of the recording medium is from the free end side of the load spring toward the fixed end side, and the electromagnetic transducer is arranged at a position near the fixed end side of the load spring. Equipped on the side. For this reason, the chamfered part of the slider on the upstream side of the air flow becomes farther from the free end of the load spring, and as a result, the fluctuation in the flying height of the chamfered part of the slider due to changes in the distance between the arm part and the magnetic disk becomes smaller. Since the fluctuation in the rotational direction is reduced, the flying posture becomes stable, and highly reliable writing and reading operations can be expected, making it possible to provide an excellent magnetic head device that has never existed before.

[Brief explanation of drawings]

Fig. 2 is a perspective view showing the entire embodiment of the present invention, Fig. 2 is a side view of the embodiment shown in Fig. 1, Fig. 3 is a perspective view showing the entire conventional example, and Fig. 4 is a perspective view showing the entire embodiment of the present invention. FIG. 4 is a side view of the conventional example shown in FIG. 3; 1... Electromagnetic converter, 2... Slider,
50...Recording medium, 53...Gimbal spring, 54...Load spring.

Claims (1)

[Claims] (1) An electromagnetic transducer that writes and reads data to and from a magnetic recording medium, a slider to which the electromagnetic transducer is fixed and which floats from the surface of the recording medium according to the air flow accompanying the rotation of the recording medium, and this slider. A magnetic head device comprising: a gimbal spring that supports a gimbal spring while allowing angular movement in two directions, front, back, left, and right; and a load spring that fixes the gimbal spring to its free end. The magnetic head is characterized in that the slider is disposed at a position from the free end side of the load spring toward the fixed end, and the electromagnetic transducer is mounted on a side surface of the slider near the fixed end side of the load spring. Device.