JPH0546949A - Supporting structure for magnetic head - Google Patents

Abstract

PURPOSE:To firmly fix a flexure member and to increase the levitation perfor mance of the title magnetic head by a method wherein a bent part along the circumferential direction of a magnetic recording medium is formed at the tip of a load beam. CONSTITUTION:A bent part 23 which is perpendicular to the lengthwise direction is formed at the tip part of a load beam 24. The peripheral end 20 of the beam 24 is bent to the side opposite to a face faced with a magnetic recording medium. A slider 12 is formed at the beam bent part via a flexure member 16. The other end of the beam 24 is connected to a head arm in a head driving mechanism via a mount 18. A reinforcement part 22 which is perpendicular to a line A-A connecting two angle parts is formed at the tip of the beam 24. By this simple constitution, the flex or can be installed in the circumferential direction of the magnetic recording medium, and the stable levitation performance of the title magnetic head can be obtained. The bonding area of the flexure member to the load beam can be expanded and the lack of a bonding strength is not caused.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head for magnetic field modulation used in a magnetic field modulation recording system of a magneto-optical recording device.

[0002]

2. Description of the Related Art A magnetic head for magnetic field modulation used in a magnetic field modulation recording system of a magneto-optical recording apparatus is shown in FIG.
As shown in FIG. 2, a slider 12 that is floated facing the magnetic recording medium 10 and has a magnetic core incorporated therein, as in a floating magnetic head used in a general magnetic disk device.
Is generally formed by joining the flexure 16 attached to the tip of the load beam 14 made of stainless steel or the like. The other end of the load beam 14 is connected to a head arm (not shown) of a head drive mechanism of the magnetic recording device via a mount 18 made of stainless steel or the like joined by laser welding or the like.

[0003]

In the case of a magnetic head for magneto-optical recording, an orthogonal type in which the longitudinal direction of the load beam and the direction of the flying rail formed on the slider are perpendicular to each other is generally provided due to the restrictions on the apparatus. preferable.

Therefore, conventionally, a slider is bonded to an in-line gimbal suspension (GS) in the orthogonal direction.

Alternatively, as shown in FIG. 4, a partial surface 43 and a partial surface 44 of the adapter 15 are adhered to the rear surfaces of the partial surface 41 and the partial surface 42 of the tip portion of the load beam, respectively, and the partial surface 45 of the adapter 15 is bonded. The partial surface 46 of the flexure 16 is bonded to the back surface of the flexure 16, and the partial surface 48 of the slider 12 is bonded to the back surface of the partial surface 47 of the flexure 16 to form the adapter 1
By interposing 5 between the load beam 14 and the flexure 16, the flexure 16 is attached at right angles to the longitudinal direction of the load beam 14.

However, the method of adhering the slider to the above-mentioned in-line GS in an orthogonal manner is the flexure 16
Is perpendicular to the circumferential direction of the magnetic recording medium,
The floating performance is inferior.

Further, the flexure 16 is attached to the adapter 15
In the method of mounting the load beam 14 at right angles to the longitudinal direction via the, the mounting strength is insufficient, the processing of the adapter 15 is difficult, and the spot accuracy is poor. Further, as shown in FIG.
It was easily deformed in the direction perpendicular to 5 (arrow).

The present invention has been made in order to solve the above problems, and is intended to enhance the levitation performance by firmly attaching a flexure and a slider to the load beam in the orthogonal direction with respect to the longitudinal direction of the load beam.

[0009]

According to a first aspect of the present invention, there is provided a magnetic head support structure in which a magnetic head slider facing a magnetic recording medium is bonded to a tip of a load beam via a flexure. A bent portion is provided at the tip of the load beam along the circumferential direction of the magnetic recording medium.

According to a second aspect of the present invention, there is provided a magnetic head supporting structure,
The magnetic head support structure according to claim 1, wherein an adapter is interposed between the load beam and the flexure.

According to a third aspect of the present invention, there is provided a magnetic head supporting structure,
The magnetic head support structure according to claim 2 is characterized in that a positioning portion such as a positioning hole or a notch is formed in the load beam, the adapter and the flexure.

According to a fourth aspect of the present invention, there is provided a magnetic head support structure,
The magnetic head support structure according to any one of claims 1 to 3, wherein a reinforcing portion is provided at a bent portion at a tip of the load beam.

The term "reinforcing portion" as used herein means an embossed member or a reinforcing member.

According to a fifth aspect of the present invention, there is provided a magnetic head support structure,
The magnetic head support structure according to any one of claims 1 to 4, wherein at least a part of a peripheral end of the load beam is bent.

[0015]

In the magnetic head supporting structure of the present invention, since the bent portion along the circumferential direction of the magnetic recording medium is provided at the tip of the load beam, the adhesive area with the flexure facing the circumferential direction of the magnetic recording medium is provided. And the flexure can be firmly fixed to the load beam. Since the flexure is provided in the circumferential direction of the magnetic recording medium, the flying state of the slider can be stabilized.

Further, since the bending portion at the tip of the load beam is provided with the reinforcing portion formed by embossing or attaching the reinforcing material, the load beam can be sufficiently strengthened.

Further, by interposing the adapter between the load beam and the flexure, the accuracy of height adjustment of the slider can be increased and the load beam can be further reinforced.

Furthermore, by forming a positioning portion including a positioning hole or a notch in the tip portion of the load beam, the adapter, and the flexure, it is possible to enhance the accuracy in assembling each component.

By bending at least a part of the peripheral edge of the load beam, the strength of the load beam can be further increased.

[0020]

【Example】

(Embodiment 1) FIG. 1 shows a support structure of a magnetic head according to Embodiment 1. Since the present embodiment relates to the support structure of the magnetic head, particularly the tip of the load beam, the magnetic core,
The coil and the wiring of the lead wire for forming the electric circuit are omitted.

The feature of this embodiment is that a bent portion 23 is provided at the tip of the load beam 24 in a direction perpendicular to the longitudinal direction of the load beam. Then, the peripheral ends 20, 20 of the load beam 24 were bent and formed on the side opposite to the surface facing the magnetic recording medium.

The slider 12 is provided on the bent portion 23 at the tip of the load beam 24 via the flexure 16.
The other end of the load beam 24 is mounted on the head arm (not shown) of the head drive mechanism of the magnetic recording device via the mount 18.
Are connected to.

Further, the load beam 24 is formed with an emboss (reinforcing portion) 22 so as to be perpendicular to an AA line connecting two corners formed by providing a bent portion at its tip. Has been done. Bent portion 23 at the tip of load beam
Although the strength along the line AA may be somewhat insufficient due to the provision of, the formation of the embossing 22 sufficiently compensates for the insufficient strength.

Therefore, instead of the embossing 22, it is also preferable to bond a reinforcing material here to reinforce.

The side end portion 21 at the tip of the load beam 24
Does not have to be bent.

According to the magnetic head supporting structure of the present embodiment in which the tip of the load beam is provided with a bent portion in a direction perpendicular to the longitudinal direction of the load beam, the flexure can be formed on the magnetic recording medium by a simple process. It can be provided in the circumferential direction, and stable floating performance can be obtained.

Further, since the adhesion area between the flexure and the load beam can be widened, there is no risk of insufficient adhesion strength.

Furthermore, the strength of the load beam can be increased by bending the peripheral edge of the load beam. In this embodiment, the magnetic recording medium is bent on the opposite side, but it may be bent on the magnetic recording medium side.

(Embodiment 2) A support structure for a magnetic head according to Embodiment 2 will be described with reference to FIG. In FIG. 2, for easy understanding of the configuration, each component, that is, the load beam 34, the adapter 28, and the flexure 26 is simplified and shown in a perspective view before assembly. The slider incorporating the magnetic core is omitted.

The magnetic head support structure of the second embodiment is characterized in that an adapter 28 is interposed between the flexure 26 and the flexure 26 attached to the bend 23 at the tip of the load beam 34.

The adapter 28 is made of stainless steel or the like,
It is bent and molded. The load beam 34 and the adapter 28, and the adapter 28 and the flexure 26 are joined by laser welding or the like.

Further, the bent portion 23 is provided with the embossing 22 as a reinforcing portion as in the first embodiment.

Further, the peripheral end of the load beam is bent on the side opposite to the magnetic recording medium.

Further, holes 49, 50, 51 as positioning portions and notches 52, 53, 54 as positioning portions are formed in the tip portion of the load beam 34, the adapter 28 and the flexure 26, respectively. These holes 4
The 9, 50, 51 and the notches 52, 53, 54 make the positioning easy and highly accurate when the respective parts are bonded by spot welding or the like. Particularly, by forming both the hole and the cut, the positioning accuracy can be further improved.

Also in the magnetic head support structure of this embodiment, the flexure 26 can be provided in the circumferential direction of the magnetic recording medium in a simple process, and stable floating performance can be obtained.

The adapter 28 is used for adjusting the height of the slider, but the strength of the load beam 34 is further increased by being bonded to the tip of the load beam 34.

Furthermore, since the bent portion is provided at the tip of the load beam, the bonding area between the adapter and the load beam can be made significantly wider, and there is no risk of insufficient bonding strength.

Therefore, the deformation of the load beam centering on the adapter is unlikely to occur.

In particular, it is not necessary to form the adapter in a complicated shape in order to orient the flexure in the circumferential direction, and there is no difficulty in processing the adapter.

By bending the peripheral edge of the load beam, the intensity of the load beam can be increased.

[0041]

According to the magnetic head support structure of the present invention, the load beam has a bent portion at the tip thereof which is perpendicular to the longitudinal direction of the load beam. Increase the adhesion area with the flexure facing,
The flexure can be firmly fixed to the load beam, and the floating state can be stabilized because the flexure is provided in the circumferential direction of the magnetic recording medium.

Since the bent portion at the tip of the load beam is provided with the embossed portion or the reinforcing portion made of the reinforcing material, the load beam can be sufficiently strengthened.

Further, by interposing the adapter between the load beam and the flexure, the accuracy of height adjustment of the slider can be improved and the load beam can be further reinforced.

Further, since the positioning portion including the positioning hole or the notch is formed in the tip portion of the load beam, the adapter, and the flexure, the accuracy in assembling each component can be improved.

Furthermore, the strength of the load beam can be further increased by bending at least a part of the peripheral edge of the load beam.

[Brief description of drawings]

FIG. 1 is a plan view showing a support structure for a magnetic head according to a first embodiment.

FIG. 2 is a perspective view illustrating a magnetic head support structure according to a second embodiment.

3A and 3B are views showing a conventional magnetic head supporting structure, FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a front view.

FIG. 4 (a) is a perspective view showing another conventional magnetic head, and FIG. 4 (b) is a side view of an adapter portion.

[Explanation of symbols]

 12 Slider 14 Load Beam 15 Adapter 16 Flexure 20 Circumferential End 22 Embossing (Reinforcing Part) 23 Bending Part 24 Load Beam 26 Flexure 28 Adapter 34 Load Beam 49 Hole (Positioning Part) 50 Hole (Positioning Part) 51 Hole (Positioning Part) 52 notch (positioning part) 53 notch (positioning part) 54 notch (positioning part)

Claims (5)

[Claims] 1. In a support structure of a magnetic head, wherein a magnetic head slider facing a magnetic recording medium is bonded to the tip of a load beam via a flexure, a bent portion along the circumferential direction of the magnetic recording medium at the tip of the load beam. A support structure for a magnetic head, wherein: 2. The magnetic head support structure according to claim 1, wherein an adapter is interposed between the load beam and the flexure. 3. The magnetic head support structure according to claim 2, wherein the load beam, the adapter, and the flexure are provided with positioning portions such as positioning holes or notches. Construction. 4. The magnetic head support structure according to claim 1, wherein a reinforcing portion is provided at a bent portion at a tip of the load beam. .. 5. The support structure for a magnetic head according to claim 1, wherein at least a part of a peripheral edge of the load beam is bent.