JPH10261249A - Magnetic head for magneto-optical recording - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the damage of a magneto-optical disk by providing a stopper protruded to any of the side faces of a slider other than its tip, the slider being attached to the tip part of a gimbal spring, so as to limit the movement of the slider in a proper range and prevent the deformation of a load beam and the damaging of a magnetic head for magneto-optical recording caused by external impacts. SOLUTION: In this magnetic head for magneto-optical recording, a gimbal spring bent part 5a, a gimbal spring hole and a load beam are formed in the tip part of a gimbal spring 5 by punching and bending. A slider 4 holding a magnetic head element is attached to the gimbal spring 5 by adhering and fixing a projection 4a formed to be protruded in the upper surface of the slider 4 to the gimbal hole. Further, a linear bar-like stopper 4b for regulating up and down movements is made of the same material for the slider 4 and integrally therewith in the side face part of the slider 4 facing the base end side of the gimbal spring.

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 magneto-optical recording in which a slider is attached to a support via a gimbal spring.

[0002]

2. Description of the Related Art FIG. 9 is a perspective view showing a schematic configuration of a magneto-optical disk recording / reproducing mechanism including a conventional magneto-optical recording magnetic head. And the slider 4 holding the magnetic head element of the magneto-optical recording magnetic head 3 is in contact with the other surface. Here, the magneto-optical recording magnetic head 3
Is a slider 4 holding a magnetic head element, a gimbal spring 5 having the slider 4 attached to a distal end, a fixed body 6 to which a base end of the gimbal spring 5 is fixed, and a fixed body 6 with a screw 7. And a support 8 which is fixed and moves in the radial direction of the magneto-optical disk 1.

Conventionally, as this type of magnetic head for magneto-optical recording, there is one disclosed in JP-A-6-60585. 10 to 12 show a similar structure. FIG. 10 is a plan view showing a conventional magnetic head for magneto-optical recording, and FIG. 11 is a side view thereof. In these figures, the base end of the gimbal spring 5 is fixed to a fixed body 6 by spot welding or the like, and the tip of the gimbal spring 5 is stamped and bent to form a gimbal spring bent portion 5.
a, a gimbal spring hole 5b and a load beam 5c are formed. Then, the slider 4 is attached to the gimbal spring 5 by adhesively fixing a projection 4a formed on the upper surface of the slider 4 holding the magnetic head element 9 to the gimbal spring hole 5b, and fixing the gimbal spring proximal end side. The gimbal spring 5 is fixed to the support 8 by screwing the body 6 with screws 7. The fixed body 6 includes
There is a supporting arm 10 formed integrally with the slider 4. The slider 4 is supported with the gimbal spring bent portion 5a being hung on the tip of the supporting arm 10, and the slider 4 has a structure capable of vertically swinging. Reference numeral 11 denotes F connected to the magnetic head element 9.
It is a PC.

[0004]

By the way, when an external impact is applied, the impact force is located at the tip of the gimbal spring and concentrates on the load beam 5c having the least strength.
The load beam 5c is deformed because the slider 4 bonded and fixed thereto swings. Due to this deformation, the attitude of the slider 4 is deteriorated. When the slider 4 is started, the slider 4 does not normally slide on the surface of the magneto-optical disk 1 between the magneto-optical disk 1 and the slider 4. Damage to the magnetic head for magneto-optical recording occurs.

In view of the above, the present invention suppresses the movement of a slider provided at the tip of a gimbal spring to an appropriate range, thereby deforming a load beam due to an external impact and reducing the magnetic head for magneto-optical recording. An object of the present invention is to provide a magnetic head for magneto-optical recording in which damage is eliminated and scratches on the magneto-optical disk surface are prevented.

[0006] Other objects and novel features of the present invention will be clarified in embodiments described later.

[0007]

In order to achieve the above object, the present invention provides a magnetic recording medium for magneto-optical recording in which a base end of a gimbal spring is fixed to a support and a slider is attached to a tip end of the gimbal spring. In the head, a stopper is provided on one of side surfaces other than the tip end of the slider.

[0008] The stopper may be provided on a side surface of the slider facing the gimbal spring base end.

The stopper may be made of the same material as the slider and integrated with the slider, or the stopper may be made of metal or rubber of a different material from the slider.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the magnetic head for magneto-optical recording according to the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing a first embodiment of a magnetic head for magneto-optical recording according to the present invention, and FIG. 2 is a plan view thereof. In FIGS. 1 and 2, components denoted by the same reference numerals as those in FIGS. 10 and 11 of the related art have the same functions, and therefore description thereof will be omitted, and modified portions will be described in detail.

In this embodiment, a gimbal spring bent portion 5a, a gimbal spring hole 5b, and a load beam 5c are formed by punching and bending the tip of the gimbal spring 5.
And a protrusion 4a protruding from the upper surface of the slider 4 holding the magnetic head element 9 is inserted into the gimbal spring hole 5
The structure for attaching the slider 4 to the gimbal spring 5 by adhesively fixing the slider 4 to the gimbal spring 5 is the same as that shown in FIGS. 10 and 11, but the vertical movement is further applied to the side surface of the slider 4 facing the base end of the gimbal spring. A linear rod-shaped stopper 4b for regulating is integrally formed with the slider 4 with the same material. For example, when the slider 4 is manufactured by resin molding,
The stopper 4b can be molded at the same time.

According to the first embodiment, the following effects can be obtained.

(1) A stopper 4 is provided on the side of the slider 4 holding the magnetic head element 9 facing the base end of the gimbal spring.
Since b is formed integrally with the same material as the slider 4,
The vertical movement of the slider 4 can be suppressed.
In other words, even if the rear end of the slider 4 is shaken in a direction in which the slider 4 is lifted by an external impact, the movement range of the slider 4 is restricted by the stopper 4b that moves in the same manner as the slider 4 hitting the lower surface of the gimbal spring 5, Since the amount of swing of the slider 4 is controlled appropriately, the deformation of the load beam 5c does not occur. Therefore, it is possible to prevent the magnetic head for magneto-optical recording from being damaged by using the magnetic head for magneto-optical recording in the deformed state of the load beam 5c, and to prevent damage to the surface of the magneto-optical disk.

(2) The slider 4 and the stopper 4b can be integrally manufactured by resin molding, can cope with a slider shape having a complicated structure, and have the advantage that they can be easily manufactured at the same cost as conventional ones. .

FIG. 3 shows a main structure of a magnetic head for magneto-optical recording according to a second embodiment of the present invention. In this case, an L-shaped stopper 4c is integrally formed of the same material as the slider 4 on the side surface of the slider 4 holding the magnetic head element facing the gimbal spring base end. For example, when the slider 4 is manufactured by resin molding, the stopper 4c can be simultaneously molded. The other configuration is the same as that of the first embodiment.

In the case of the second embodiment, the distal end surface of the bent portion P of the L-shaped stopper 4c abuts on the lower surface of the gimbal spring 5, so that the abutting position becomes accurate (the gimbal spring distal end portion). Instead of hitting the edge of the punched part, it can be abutted at a position away from the punched part)
By adjusting the bent portion P to an appropriate length, the shape of the slider 4 can be easily controlled. Further, the slider 4 and the stopper 4c can be easily manufactured at the same cost as the conventional one by integrally manufacturing them by resin molding.

FIG. 4 shows a main structure of a magnetic head for magneto-optical recording according to a third embodiment of the present invention. In this case, a linear rod-shaped stopper 20 made of an elastic material such as rubber is fixed to the side surface of the slider 4 holding the magnetic head element facing the gimbal spring base end with an adhesive (adhesive resin) 21. The other configuration is the same as that of the first embodiment.

In the case of the third embodiment, the stopper 2
Since 0 is an elastic material such as rubber, there is a feature that even if the stopper 20 hits the gimbal spring 5 when the slider 4 swings, the impact is small.

FIG. 5 shows the main structure of a fourth embodiment of the magnetic head for magneto-optical recording according to the present invention. In this case, a stopper 30 made of a metal pin is fixed to the side surface of the slider 4 holding the magnetic head element facing the gimbal spring base end with an adhesive (adhesive resin) 31. The other configuration is the same as that of the first embodiment.

In the case of the fourth embodiment, the stopper 3
Since 0 is constituted by a metal pin, it is easy to reduce the cost of the stopper itself.

FIGS. 6 and 7 show the essential structure of a magnetic head for magneto-optical recording according to a fifth embodiment of the present invention. In this case, a linear rod-shaped stopper 4b is integrally formed of the same material as the slider 4 on the side surface of the slider 4 holding the magnetic head element facing the base end of the gimbal spring. This is the same as the embodiment.

In this embodiment, the gimbal spring 5
To form an engaging portion (hook portion) 40 which fits so that the stopper 4b can move appropriately. That is, as shown in FIG.
A hole 41 is formed in order to regulate the amount of swing of the head to an appropriate amount, and a stopper 4b is inserted and fitted into the hole 41.

Therefore, according to the fifth embodiment,
The vertical movement of the slider 4 is restricted to an appropriate range by the engagement between the stopper 4b and the hole 41. Also, the movement of the slider 4 in the lateral direction is
There is a feature that can be regulated by the engagement between the b and the hole 41.
FIG. 8 shows the main structure of a magnetic head for magneto-optical recording according to a sixth embodiment of the present invention. In this case, stoppers 4d for restricting the vertical movement are integrally formed on both sides of the lateral side (direction orthogonal to the longitudinal direction of the gimbal spring) of the slider 4 holding the magnetic head element with the same material as the slider 4. Have been. For example, when the slider 4 is manufactured by resin molding, the stopper 4d can be molded at the same time.
The other configuration is the same as that of the first embodiment.

In the case of the sixth embodiment, the stopper 4
Since d can be provided on both side surfaces of the slider 4, there is a feature that is effective in suppressing an impact in a direction in which the slider 4 is twisted.

The stopper may be made of rubber, metal, or the like separate from the slider 4, or may be an L-shaped stopper as shown in FIG.

Although the embodiments of the present invention have been described above, it is obvious to those skilled in the art that the present invention is not limited to the embodiments and various modifications and changes can be made within the scope of the claims. There will be.

[0028]

As described above, according to the magneto-optical recording magnetic head of the present invention, the stopper is provided on the slider to regulate the range of movement of the slider to an appropriate amount, and the load beam at the tip of the gimbal spring is controlled. The load on the slider is quantified, and even when an external impact is applied, the slider does not move significantly upward and the load beam does not deform. For this reason,
In the relationship between the magneto-optical recording magnetic head and the magneto-optical disk (magneto-optical recording medium), no deformation of the load beam occurs, so that a reproducible positional relationship is maintained and recording / reproducing is stabilized. Also, since it is structurally simple, it can be manufactured at the same cost as a conventional product.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a magnetic head for magneto-optical recording according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing a configuration of a main part according to a second embodiment of the present invention.

FIG. 4 is a side view showing a configuration of a main part according to a third embodiment of the present invention.

FIG. 5 is a side view illustrating a configuration of a main part according to a fourth embodiment of the present invention.

FIG. 6 is a side view showing a configuration of a main part according to a fifth embodiment of the present invention.

FIG. 7 is a partial rear view showing an engagement state between an engagement portion on a gimbal spring side and a stopper on a slider side in a fifth embodiment.

FIG. 8 is a side view showing a configuration of a main part according to a sixth embodiment of the present invention.

FIG. 9 is a perspective view showing a schematic configuration of a magneto-optical disk recording / reproducing mechanism including a conventional magnetic head for magneto-optical recording.

FIG. 10 is a plan view showing a conventional magnetic head for magneto-optical recording.

FIG. 11 is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magneto-optical disk 2 Light beam device 3 Magnetic head for magneto-optical recording 4 Slider 4a Projection 4b, 4c, 4d, 20, 30 Stopper 5 Gimbal spring 5a Gimbal spring bent part 5b Gimbal spring hole 5c Load beam 6 Fixed body 7 Screw 8 Support 9 Magnetic head element 10 Support arm 21, 31 Adhesive 40 Engagement part 41 Drilled hole

Claims (4)

[Claims] 1. A magneto-optical recording magnetic head in which a base end of a gimbal spring is fixed to a support, and a slider is attached to a tip of the gimbal spring. A magnetic head for magneto-optical recording, comprising a protruding stopper. 2. The magnetic head for magneto-optical recording according to claim 1, wherein the stopper is provided on a side surface of the slider facing a base end of the gimbal spring. 3. The magnetic head for magneto-optical recording according to claim 1, wherein the stopper is made of the same material as the slider and is integrated with the slider. 4. The magnetic head for magneto-optical recording according to claim 1, wherein the stopper is made of metal or rubber of a different material from the slider.