JPH05128621A - Attaching structure of slide type magnetic head for magneto-optical recording - Google Patents

Abstract

(57) [Abstract] [Purpose] When applied to a mounting structure of a sliding type magneto-optical head that performs magneto-optical recording while sliding in contact with a magneto-optical recording medium, the structure is simple and The surface wobbling of the recording medium can be tracked to improve the reliability of magneto-optical recording. A magnetic head 4 electrically connected to an internal terminal pattern 20 of a flexible wiring board 19 is attached to an arm 1
Of the magnetic head 4 through the opening 3 formed in the bottom of the recess 2 and housed in the recess 2 provided on one end side of the magnetic head 4.
Is projected to the side of the magneto-optical disk (not shown), and a dogleg-shaped leaf spring 29 is provided on the back side of the magnetic head 4 so as to make a convex pressure contact with the magnetic head 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a sliding type magnetic head for magneto-optical recording which is slid on a magneto-optical recording medium to perform magneto-optical recording.

[0002]

2. Description of the Related Art A magnetic head for a flexible disk is conventionally known as a magnetic head in which a magnetic head slides in contact with a magnetic recording medium to perform magnetic recording.

As shown in FIG. 12, a mounting structure of a magnetic head for a flexible disk is such that a lower magnetic head 52 is provided via a plate 51 on a head carriage (fixed) 50 which constitutes a base. A head arm 54 is laterally attached from an arm attachment member 53 rising upward at the end of the head via a leaf spring 55 by screwing, and a gimbal is provided on a lower surface of the head arm 54 so as to face the lower magnetic head 52. An upper magnetic head 57 is provided via a spring 56.

The upper and lower magnetic heads 57 and 52
By rotatably interposing the flexible disk 58 between them, magnetic recording in the track direction is performed on the flexible disk 58 by the upper or lower magnetic heads 57 and 52.

In addition to the above magnetic recording medium, a writable optical disk capable of writing, erasing and reading information using a light beam, a so-called magneto-optical disk, has been developed and put to practical use. Has reached.

In this magneto-optical disk, a perpendicular magnetic film forming a recording layer is provided on a transparent substrate, a reflective film made of a metal thin film is laminated on the perpendicular magnetic film, and the reflective film is formed by UV coating or the like. It has a structure covered with a protective layer made of a resin material.

When information is written on this magneto-optical disk, the magneto-optical disk is rotated at a predetermined rotation speed with its central portion as the center of rotation, and the perpendicular magnetization of the recording tracks formed on the magneto-optical disk. By applying a laser beam to the film with an external magnetic field applied,
A portion of the perpendicularly magnetized film in the recording track, which receives the laser beam, performs a magnetization direction according to the direction of the external magnetic field as the temperature of the laser beam rises.

Then, when the laser beam has a substantially constant light intensity, a so-called magnetic field modulation method in which the external magnetic field changes according to the recording signal, or when the external magnetic field becomes substantially constant, the laser beam By the so-called optical modulation method in which the light intensity changes according to the recording signal, the magnetization direction reversal region is formed with a predetermined pattern in the perpendicular magnetization film of the recording track to write information.

As described above, in the case of writing information on the magneto-optical disk by the magnetic field modulation method, for example, a recording signal magnetic field generator for generating an external magnetic field according to a recording signal on the perpendicular magnetization film of the magneto-optical disk is provided. Used.

As the recording signal magnetic field generator, a magnetic head for magneto-optical recording is used, which is formed by winding a coil to which a current according to a recording signal is supplied, around a magnetic core.

When magnetic recording is performed on the perpendicular magnetization film of the magneto-optical disk with such a magnetic head, it is desired that the perpendicular magnetization film of the magneto-optical disk can be magnetized with sufficient strength. It is necessary to place it as close as possible to the surface of the magnetic disk.

[0012]

However, the above magneto-optical disk may cause surface wobbling during its rotation due to its inclination, non-uniformity of thickness, etc., and therefore the magnetic head is subjected to another position control. It is very difficult to hold the surface of the magneto-optical disk without coming into contact with the surface of the magneto-optical disk and keeping it sufficiently close. Moreover, in the case of the magneto-optical disk, unlike the above-mentioned hard disk, the number of rotations thereof is low, so that the magnetic head cannot be levitated by the wind force accompanying the rotation of the magneto-optical disk.

Therefore, conventionally, an example has been proposed in which a servo control mechanism for controlling the position of the magnetic head is provided. This is because the magnetic head is attached to a predetermined actuator, the displacement between the magnetic head and the surface of the magneto-optical disk is detected, and the actuator is driven based on the detected output, so that the magneto-optical disk causes surface wobbling during its rotation. Even if it occurs, the gap between the magnetic head and the magneto-optical disk surface can be maintained at a predetermined value.

The displacement between the magnetic head and the surface of the magneto-optical disk when servo control is performed on such a magnetic head is detected by, for example, electrostatic between the reflective layer provided on the magneto-optical disk and the magnetic head. This is done by detecting a capacitance change.

In this case, it is necessary to provide a capacitance detection electrode facing the magneto-optical disk and move the capacitance detection electrode integrally with the magnetic head. Therefore, the capacitance detection electrode is attached to a magnetic head or an actuator that drives the magnetic head, and the actuator can be driven together with the magnetic head. However, the configuration including the magnetic head and the capacitance detection electrode is complicated and large. In addition, there is a problem that an excessive driving load is applied to the actuator.

Further, an eddy current may be generated in the capacitance detection electrode due to the magnetic field from the magnetic head, and the capacitance detection electrode may generate heat due to eddy current loss.

Therefore, recently, there has been proposed a sliding type magnetic head for magneto-optical recording, which can keep a minute distance between the magnetic head and the surface of the magneto-optical disk constant. As shown in FIG. 13, this magnetic head is configured by integrally forming a central magnetic pole core 61 and side magnetic pole cores 62 provided so as to surround the central magnetic pole core 61 with ferrite. In the figure, 63 indicates a magneto-optical disk, and 6
4 is a protective layer, 65 is a perpendicular magnetization film, and 66 is a base material. Further, 67 indicates an exciting coil.

However, the sliding surface 62a of the side magnetic pole core 62 with respect to the disk surface has a square shape.
Since the main processing is mainly linear groove processing and surface grinding / polishing, it is difficult to obtain a good suitable sliding condition for the magneto-optical disk 63 having low hardness.

That is, it has been difficult to study the appropriateness of the frictional resistance sliding life due to the contact surface area and the prevention of damage to the magneto-optical disk 63 due to the sharp end of the ferrite core. Further, since the sliding surface 62a of the magnetic head is mirror-finished, so-called "sticking" occurs between the contact surfaces of the magnetic head and the magneto-optical disk 63, which impedes the constant-speed rotation of the magneto-optical disk 63. was there.

Therefore, at present, as shown in FIG. 14, a sliding contact ring 73 having a low frictional resistance is separately provided so as to surround the central magnetic pole core 72 provided at the central portion of the base core 71. There has been proposed an example in which magneto-optical recording is performed while the end surface of the sliding contact ring 73 is brought into contact with and slid on the magneto-optical disk 63. In the figure, reference numeral 74 represents an exciting coil.

Then, it is considered that this magnetic head is attached to a magnetic head device to which the attachment structure of the magnetic head for a flexible disk shown in FIG. 12 is applied. The surface runout of the flexible disk 58 is about ± 0.15 mm, and gimbal springs are attached to the lower magnetic head 52 and the upper magnetic head 57, or the lower magnetic head 52 is fixed. There is a method of attaching a gimbal spring on the upper magnetic head 57. In either case, the upper magnetic head 57
Using a coil spring or wire spring on the upper magnetic head 57
Is pressed against the flexible disk 58 with a required load.

However, the problem here is the followability of the magnetic head to the surface runout of the magneto-optical disk.

In the case of the above-mentioned magnetic head mounting structure for a flexible disk, the surface wobbling of the flexible disk 58 can be followed only by about ± 0.2 mm. The same can be said for a magnetic head device for a magneto-optical disk to which the above-mentioned mounting structure for a magnetic head for a flexible disk is applied.

The surface deflection of the magneto-optical disk 63 is ± 0.5.
It is as large as 5 mm, and therefore, the mounting structure of the magnetic head for the flexible disk cannot be directly applied to the mounting structure of the magneto-optical head. That is, the gimbal spring provided in the mounting structure of the magnetic head for the flexible disk cannot be used as it is.

The present invention has been made in view of the above problems, and an object of the present invention is, in particular, a sliding type optical disk for performing magneto-optical recording while sliding in contact with a magneto-optical recording medium. When applied to a mounting structure of a magnetic head, the structure is simple, and the surface wobbling of the magneto-optical recording medium can be followed, and the reliability of the magneto-optical recording can be improved. It is to provide a mounting structure for a magnetic head.

[0026]

The present invention provides a sliding type magnetic head for magneto-optical recording, in which a magnetic head 4 disposed on an arm 1 slides in contact with a magneto-optical recording medium 14 to perform magneto-optical recording. In the mounting structure, the magnetic head 4 is fitted into the head mounting hole 3 provided in the arm 1 from the side opposite to the magneto-optical recording medium 14, and the sliding surface 7a of the magnetic head 4 is the magneto-optical recording. A leaf spring 29, which is attached so as to project from the surface of the arm 14 of the medium 14 and is pressed against the magnetic head 4 in a convex shape, is provided on the back side of the magnetic head 4.

The present invention is also a mounting structure of a sliding magnetic head for magneto-optical recording, in which the magnetic head 4 arranged on the arm 1 slides in contact with the magneto-optical recording medium 14 to perform magneto-optical recording. Then, the magnetic head 4 is fitted into the head mounting hole 3 provided in the arm 1 from the side opposite to the magneto-optical recording medium 14, and the sliding surface 7a of the magnetic head 4 is the arm 1 surface of the magneto-optical recording medium 14. The magnetic head 4 is attached so as to project further, and the coiled spring 34 is provided on the back side of the magnetic head 4.

[0028]

According to the above-described first structure of the present invention, the magnetic head 4 is fitted into the head mounting hole 3 provided in the arm 1 from the side opposite to the magneto-optical recording medium 14. Since the sliding surface 7a is attached so as to project from the surface of the arm 1 of the magneto-optical recording medium 14, a leaf spring 29 is provided on the back side of the magnetic head 4 so as to be pressed into contact with the magnetic head 4 in a convex shape. By preparing a plurality of leaf springs 29 having different elastic forces, the load pressure of the magnetic head 4 can be easily adjusted, and the surface wobbling of the magneto-optical recording medium 14 (± 0.55 m
m) can be sufficiently dealt with. In addition, the leaf spring 29
Therefore, the structure is very simple and it is advantageous in terms of cost.

According to the second structure of the present invention, the magnetic head 4 is fitted in the head mounting hole 3 provided in the arm 1 from the side opposite to the magneto-optical recording medium 14.
The slider 7 is mounted so that the sliding surface 7a of the coil protrudes from the surface of the arm 1 of the magneto-optical recording medium 14, and the coil spring 34 is provided on the back side of the magnetic head 4. By adjusting the adjusting screw 35 or the like, the load pressure of the magnetic head 4 can be easily adjusted, and the surface wobbling of the magneto-optical recording medium 14 can be sufficiently accommodated. Further, since it is only necessary to provide the coil-shaped spring 34, the structure is very simple and the cost is advantageous, as in the first configuration.

[0030]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 shows a sliding magnetic head for magneto-optical recording according to the first embodiment (hereinafter, simply referred to as a magnetic head).
3A is a three-sided view particularly showing the arm 1 of the mounting structure of FIG. 1, FIG. 1A being a plan view thereof, and FIG. 1B being A in FIG. 1A.
FIG. 1C is a cross-sectional view taken along line BB in FIG. 1A.

As shown in the figure, the arm 1 according to the first embodiment is provided with a flat circular concave portion 2 at one end thereof to which a magnetic head is attached, and the bottom of the concave portion 2 has a diameter smaller than that of the concave portion 2. Opening with a smaller diameter (head mounting hole) 3
Are formed.

In the magnetic head 4, as shown in FIG. 2, a central magnetic pole core 6 projecting upward is integrally formed in the central portion of a circular base core 5 with, for example, a soft ferrite resin. A sliding contact ring 7 is fixed by, for example, an adhesive so as to surround the. Further, an exciting coil 9 configured by winding a lead wire 8 around the central magnetic pole core 6 in a ring-shaped space between the central magnetic pole core 6 and the sliding contact ring 7.
Are housed and configured.

Further, as shown in FIG. 3, the magnetic head 4 has a terminal core fitting recess 10 formed on the back surface of the base core 5. The terminal board 11 is a plastic board
The terminal pins 12 of the book are set up. Then, the lead wire 8 of the exciting coil 9 led out through the lead-out hole 13 of the base core 5 is electrically connected by, for example, being twisted to the inner pin 12a in the terminal pin 12.
Then, the terminal plate 11 is fitted into the fitting recess 10 of the base core 5. At this time, the outer pin 12b of the terminal pin 12
Is projected outward from the magnetic head 4.

The height of the sliding contact ring 7 is slightly larger than the height of the central magnetic pole core 6, and as shown in FIG. At the time of recording, the sliding contact ring 7 directly contacts and slides on the magneto-optical disk 14 to perform magneto-optical recording. here,
In the magneto-optical disk 14, a perpendicular magnetic film 16 forming a recording layer is provided on a transparent substrate 15, a reflective film (not shown) made of a metal thin film is laminated on the perpendicular magnetic film 16, and the reflective film is further formed. Has a structure covered with a protective layer 17 made of a resin material such as a UV coat.

Then, as shown in FIG. 4, the magnetic head 4 is housed in the recess 2 of the arm 1 with the magnetic head 4 facing downward. In this example, the diameter of the opening 3 is set to be larger than the outer diameter of the sliding contact ring 7 and smaller than the diameter of the base core 5. Therefore, the peripheral portion of the base core 5 of the magnetic head 4 is placed on the flange portion 18 formed in the peripheral portion of the opening 3, and the flange portion 18 is
A flange for preventing the magnetic head 4 from protruding downward is configured. Further, since the thickness of the flange portion 18 is set to be smaller than the height of the sliding contact ring 7, the magnetic head 4
When the magnetic head 4 is housed in the recess 2, the sliding surface 7 a side of the magnetic head 4 projects from the opening 3.

Prior to accommodating the magnetic head 4 in the concave portion 2, the flexible wiring board 1 is attached to the magnetic head 4.
9 is attached. This flexible wiring board 19
As shown in FIG. 5, 2 is made of, for example, copper foil on its upper surface.
One internal terminal pattern 20 and two external terminal patterns 2
1 and 1 are respectively electrically connected by the lead pattern 22 to form a conductor pattern.

The magnetic head 4 is attached to the flexible wiring board 19 by attaching the magnetic head 4 to the base core 5 of the magnetic head 4.
The electrical connection is made by the solder layer 23 between the terminal pin 12 protruding to the back surface side of the and the internal terminal pattern 20 of the flexible wiring board 19.

On the other hand, on the upper surface of the arm 1, as shown in FIG. 4, the flexible wiring board 19 is provided along the center line m thereof.
A groove 24 for accommodating the is formed. The flexible wiring board 19 is housed in the groove 24 with the upper surface side on which the conductor pattern is formed facing upward.

Therefore, the internal terminal pattern 20 of the flexible wiring board 19 and the terminal pin 12 are soldered to each other through the through hole 2 formed in the internal terminal pattern 20.
After the tip of the terminal pin 12 is led to the upper surface side of the flexible wiring board 19 through 5 (see FIG. 5), the drawn tip of the terminal pin 12 and the internal terminal pattern 20 are soldered. An adhesive tape 26 is attached to the back surface of the flexible wiring board 19, and the flexible wiring board 19 is fixed to the arm 1 by the adhesive tape 26.

Further, the groove 24 has a widened shape in the periphery of the recess 2 and ends at a position slightly closer to the other end side of the arm than the one end side of the arm of the recess 2. Therefore, in the peripheral portion of the concave portion 2, the groove 2
4 has a pair of guide walls 27 formed. Fitting grooves 28 that are parallel to the center line m are formed on the side walls of the guide wall 27 that face each other.

In this example, the dogleg-shaped leaf spring 29 is mounted on the recess 2. As shown in FIG. 6, this mounting is performed by crushing the doglegged portion 29a of the leaf spring 29 with, for example, a hand.
Both ends 29b of the leaf spring 29 formed substantially horizontally are press-fitted into the fitting groove 28 formed in the guide wall 27 of the arm 1. The insertion of the leaf spring 29 into the fitting groove 28 requires the center line m.
Along the way.

Since the magnetic head 4 is housed in advance in the recess 2 of the arm 1, the dogleg-shaped portion 2 of the leaf spring 29 is formed.
By releasing the crushing of 9a by the hand, the dogleg-shaped portion 29a elastically returns and its bent top end abuts against the back surface of the base core 5 of the magnetic head 4, and the elastic returning force opens the magnetic head 4. Press to the 3 side. At this time, the magnetic head 4 is sandwiched between the leaf spring 29 and the flange portion 18 formed around the opening 3.

Therefore, as shown in FIG. 7, the magnetic head 4 is always in contact with the magneto-optical disk 14 by the load pressure of the leaf spring 29, and the magneto-optical disk 1 is in contact.
Magneto-optical recording is performed on the magneto-optical disk 14 while maintaining high followability with respect to the surface runout of No. 4 (the direction indicated by the arrow in FIG. 7).

Here, the load pressure on the magneto-optical disk 14 can be selected by appropriately changing the material of the leaf spring 29 or the bent angle of the dogleg shape. Therefore, actually, several kinds of leaf springs having different materials and different bending angles may be prepared, and the leaf spring 29 suitable for the required load pressure may be selected and attached to the arm 1. The leaf spring 29 may be made of stainless steel, beryllium copper, nickel silver, or the like.

According to the first embodiment, the magnetic head 4
Is housed in a recess 2 provided on one end side of the arm 1, and a sliding surface 7a of a magnetic head 4 is projected toward the magneto-optical disk 14 side through an opening 3 formed in the bottom of the recess 2 to further reduce the magnetic force. Since a dogleg-shaped leaf spring 29 that comes into pressure contact with the magnetic head 4 is provided on the back side of the head 4, a plurality of leaf springs 29 having different elastic forces are prepared, so that The load pressure can be easily adjusted, and it is possible to sufficiently cope with the surface runout (± 0.55 mm) of the magneto-optical disk 14. Further, since it is only necessary to provide the leaf spring 29, the structure is very simple, which is advantageous in terms of cost.

Next, a modification of the first embodiment will be described with reference to FIG. In this modification, as shown in the drawing, the recess 2
Guide walls 31 are provided on one end side and the other end side of the arm 1 in the peripheral portion of the guide wall 31, respectively. Fitting grooves 32 are formed in the guide walls 31 on their opposite side walls in a direction perpendicular to the center line m.

First, after housing the magnetic head 4 in the recess 2, the dogleg shaped leaf spring 29 is attached to the guide wall 31.
It is press-fitted into the fitting groove 32 formed in. The leaf spring 29 is inserted into the fitting groove 32 along the direction perpendicular to the center line m. Then, the internal terminal patterns 20 of the flexible wiring board 19 and the terminal pins 12 protruding from the magnetic head 4 are formed.
And are soldered, and the flexible wiring board 19 is housed and fixed in the groove 24 formed on the upper surface of the arm 1.

Also in this modified example, as in the first embodiment, the load pressure of the magnetic head 4 can be easily adjusted, and the surface deviation (± 0.55 mm) of the magneto-optical disk 14 can be sufficiently dealt with. .. Further, since it is only necessary to provide the leaf spring 29, the structure is very simple, which is advantageous in terms of cost.

Next, the mounting structure of the magnetic head according to the second embodiment will be described with reference to FIGS. The same reference numerals are given to those corresponding to those in FIGS.

The shape of the arm 1 of this mounting structure is almost the same as that of the first embodiment, but there is no corresponding one to the guide wall 27, and the screw hole 33 is formed above the peripheral portion of the recess 2. The difference is that. This screw hole 33
Are connected to a groove 24 formed on the upper surface of the arm 1 at a part thereof.

In the second embodiment, however, as shown in FIG. 10, the compression coil spring 34 is attached to the back surface of the base core 5 of the magnetic head 4 previously housed in the recess 2, and the screw hole 33 is further provided. A set screw 35 is screwed in.

Therefore, in the case of the second embodiment, the magnetic head 4 has a magneto-optical disk 14 as shown in FIG.
On the other hand, due to the load pressure of the coil spring 34, the coil spring 34 always comes into contact with the surface of the magneto-optical disk 14 (see FIG. 11).
In (1), the magneto-optical recording is performed on the magneto-optical disk 14 while maintaining high followability.

Of course, also in the second embodiment, the flexible wiring board 19 is attached to the magnetic head 4 before the magnetic head 4 is housed in the recess 2. In this case, since the groove 24 and the screw hole 33 communicate with each other,
When the magnetic head 4 is housed in the recess 2, the end portion of the flexible wiring board 19 can be pulled up to the terminal pin lead-out portion of the magnetic head 4. The flexible wiring board 19 is fixed on the groove 24 of the arm 1 via the adhesive tape 26.

According to the second embodiment, the magnetic head 4
Is housed in a recess 2 provided on one end side of the arm 1, and a sliding surface 7a of a magnetic head 4 is projected toward the magneto-optical disk 14 side through an opening 3 formed in the bottom of the recess 2 to further reduce the magnetic force. Since the coil spring 34 is arranged on the back side of the head 4 and the set screw 35 is screwed into the screw hole 33 formed on the recessed portion 2, the elastic force of the coil spring 34 is adjusted by the screwing amount of the set screw 35. Can, magnetic head 4
The load pressure of can be easily adjusted. Therefore, it is possible to sufficiently deal with the surface wobbling of the magneto-optical disk 14.

Further, in the second embodiment, it is not necessary to prepare several kinds of springs, and the assembling is simple, so that the automation of the assembling can be promoted. Further, since it is only necessary to provide the coil spring 34 and the set screw 35, the structure is very simple as in the case of the first structure described above, which is advantageous in terms of cost.

[0056]

According to the mounting structure of the sliding type magnetic head for magneto-optical recording according to the present invention, in particular, the sliding type magneto-optical recording for performing magneto-optical recording while sliding in contact with the magneto-optical recording medium. When applied to a head mounting structure, the structure is simple, and moreover, the surface wobbling of the magneto-optical recording medium can be followed, and the reliability of the magneto-optical recording can be improved.

[Brief description of drawings]

FIG. 1A is a plan view showing a structure of an arm in a mounting structure of a sliding magnetic head for magneto-optical recording (hereinafter, simply referred to as a magnetic head) according to a first embodiment. B is sectional drawing on the AA line in FIG. 1A. C is BB in FIG. 1A.
FIG.

FIG. 2 is an exploded perspective view showing the configuration of a magnetic head.

FIG. 3 is an explanatory diagram showing a method of attaching the terminal plate.

FIG. 4A is a plan view showing a mounting structure of the magnetic head according to the first embodiment. 4B is a cross-sectional view taken along the line CC of FIG. 4A (the cross section of the magnetic head is omitted). 4C is a cross-sectional view taken along the line DD in FIG. 4A (the cross section of the magnetic head is omitted).

FIG. 5 is an explanatory view showing a method of attaching the magnetic head to the flexible wiring board.

FIG. 6 is an explanatory view showing how to install the dogleg-shaped leaf spring.

FIG. 7 is a cross-sectional view showing a usage state of the magnetic head mounting structure according to the first embodiment (a cross section of the magnetic head is omitted).

FIG. 8A is a plan view showing a mounting structure of a magnetic head according to a modification of the first embodiment. B is EE in FIG. 8A.
A cross-sectional view along the line (the cross-section of the magnetic head is omitted). C is shown in FIG.
Sectional drawing on the FF line in A (the cross section of a magnetic head is abbreviate | omitted).

FIG. 9A is a plan view showing the structure of an arm in the mounting structure of the magnetic head according to the second embodiment. 9B is a cross-sectional view taken along the line GG in FIG. 9A. C is H- in FIG. 9A.
Sectional drawing on the H line.

FIG. 10A is a plan view showing a mounting structure of a magnetic head according to a second embodiment. 10B is a cross-sectional view taken along the line I-I in FIG. 10A (the cross section of the magnetic head is omitted). C is FIG. 10A.
6 is a cross-sectional view taken along the line JJ in FIG.

FIG. 11 is a cross-sectional view showing a usage state of a magnetic head mounting structure according to a second embodiment (a cross section of the magnetic head is omitted).

FIG. 12 is a configuration diagram showing a mounting structure of a magnetic head for a flexible disk.

FIG. 13 is a configuration diagram showing a conventional sliding type magnetic head for magneto-optical recording.

FIG. 14 is a configuration diagram showing a sliding type magneto-optical recording magnetic head using a sliding contact ring.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 arm 2 recessed part 3 opening (head mounting hole) 4 magnetic head 5 base core 6 central magnetic pole core 7 sliding contact ring 7a sliding surface 8 lead wire 9 exciting coil 11 terminal plate 12 terminal pin 14 magneto-optical disk 18 flange portion 19 flexible Wiring board 24 Groove 27 Guide wall 28 Fitting groove 29 V-shaped leaf spring 33 Screw hole 34 Compression coil spring 35 Set screw

Claims (2)

[Claims] 1. A mounting structure of a sliding magnetic head for magneto-optical recording, wherein a magnetic head disposed on an arm slides in contact with a magneto-optical recording medium to perform magneto-optical recording, the magnetic head comprising: The head mounting hole provided in the arm is fitted from the side opposite to the magneto-optical recording medium so that the sliding surface of the magnetic head projects from the arm surface of the magneto-optical recording medium, and A mounting structure for a sliding type magnetic head for magneto-optical recording, characterized in that a leaf spring which is pressed against the magnetic head in a convex shape is provided on the back side of the head. 2. A mounting structure for a sliding magnetic head for magneto-optical recording, wherein a magnetic head disposed on an arm slides in contact with a magneto-optical recording medium to perform magneto-optical recording, the magnetic head comprising: The head mounting hole provided in the arm is fitted from the side opposite to the magneto-optical recording medium so that the sliding surface of the magnetic head projects from the arm surface of the magneto-optical recording medium, and A structure for mounting a sliding magnetic head for magneto-optical recording, characterized in that a coil-shaped spring is provided on the back side of the head.