JP2002170293A - Sliding magnetic head device for magneto-optical recording - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify an elevating/lowering lifter mechanism, to facilitate production and assembling and to reduce a cost in a sliding magnetic head device for magneto-optical recording. SOLUTION: The device is provided with a head element 3 having a slidable contact part 2 brought into slidable contact with a magneto-optical recording medium, a support body 4 for supporting the head element 3, a fixing body 5 for fixing the support body 4 and an elevating/lowering lifter 6 for elevating/ lowering the support body 4. The lifter 6 is formed by folding a linear body and rotatably supported in a lifter supporting insertion groove 52 which is formed at one place of the fixing body 5 and provided with a lifter coming-off preventing pawl part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding type magnetic head device for magneto-optical recording which performs magneto-optical recording by sliding on a magneto-optical recording medium.

[0002]

2. Description of the Related Art Heretofore, a magneto-optical recording method using a magneto-optical disk, in which a magneto-optical recording layer made of a perpendicular magnetization film is provided on a transparent substrate having optical transparency, as a recording medium has been proposed. A magneto-optical disk recording / reproducing apparatus of a magnetic field modulation recording system has been put to practical use.

In the magneto-optical disk recording / reproducing apparatus of the magnetic field modulation recording system, the direction of the magnetic field is modulated in accordance with the information signal to be recorded by the magnetic head on the magneto-optical recording layer of the rotating magneto-optical disk. The information is recorded by applying the applied magnetic field and condensing and irradiating a light beam (laser beam) emitted from the optical pickup device.

That is, the above-described magneto-optical recording layer is heated to a temperature higher than the Curie temperature by irradiation with a light beam, loses its coercive force, and is magnetized according to the direction of the magnetic field applied from the magnetic head. Thereafter, the relative movement of the light beam with the rotation of the magneto-optical disk causes the temperature to drop below the Curie temperature, and the direction of magnetization is fixed.

Therefore, in the magneto-optical disk recording / reproducing apparatus of the magnetic field modulation recording system, a light beam applied to the magneto-optical recording layer is emitted to one surface side of the magneto-optical disk rotated by the disk rotation drive mechanism. It is necessary to dispose the optical pickup device in opposition, and dispose a magnetic head for applying an external magnetic field to the magneto-optical recording layer on the other surface side.

[0006]

In the above-described magneto-optical disk recording / reproducing apparatus, the magnetic head element must be as close as possible to the magneto-optical recording layer of the magneto-optical disk when recording information. A sliding type magnetic head device for magneto-optical recording has been proposed in which a head support arm is provided with a spring property so that information can be recorded on a magneto-optical recording layer while a magnetic head element is in sliding contact with the surface of a magneto-optical disk. Have been. In this sliding magnetic head device for magneto-optical recording, the interval between the magnetic head element and the magneto-optical recording layer of the magneto-optical disk can be kept constant without providing any control system, and the configuration is simplified. be able to.

When such a sliding type magnetic head device for magneto-optical recording is employed, it is impossible to mount or remove the magneto-optical disk while the magnetic head element is kept pressed against the magneto-optical disk. At the time of attaching / detaching the magneto-optical disk, it is necessary to jump up the head support arm and immediately release the sliding state of the magnetic head element. Therefore, in a sliding magnetic head device for magneto-optical recording, an elevating lifter is provided, and the magnetic head element is moved up and down together with a head support arm by the elevating lifter.

[0008] As the conventional lifting lifter, a resin injection molded product has been used. However, the lifting lifter made of resin has a substantially U-shape having both arms extending from both ends of a contact portion abutting against the back surface on the front end side of the head support arm toward the fixed body. On the other hand, the fixed body for fixing the head support arm has a structure in which engagement pins are integrally protruded on both side surfaces of the fixed body. Each of the fixing pins on the fixed body side is rotatably inserted into each of them. Therefore, in such a sliding magnetic head device for magneto-optical recording,
The complexity of the structure of the lifting lifter, the need for a mold for creating the lifting lifter, and the need for a mold for creating the fixed body, and the complication of manufacturing, high cost, etc., were unavoidable.

SUMMARY OF THE INVENTION In view of the above, the present invention provides a sliding type magnetic head device for magneto-optical recording, which enables simplification of a lifting / lowering lifter mechanism, simplification of manufacture and assembly, and cost reduction.

[0010]

A sliding magnetic head device for magneto-optical recording according to the present invention comprises a head element having a sliding contact portion for sliding contact with a magneto-optical recording medium, and a support for supporting the head element. A fixing body for fixing the support, and an elevating lifter for elevating and lowering the support. The elevating lifter is formed by bending a linear body, and is formed at one place of the fixed body for preventing the lifter from falling off. The lifting lifter is rotatably supported in a lifter supporting insertion groove having a claw portion.

In the sliding magnetic head device for magneto-optical recording according to the present invention, the lifting lifter is formed of a bent linear body,
The lifter is rotatably supported in a lifter support insertion hole formed at one position in the fixed body to form a so-called lifter lifter mechanism, so that the lifter lifter structure is simplified, and the lifter lifter mechanism itself is pulled. Simplification can be achieved.
At the same time, manufacture and assembly become easier. Only one molding die is required for the production of the fixed body, and the production cost can be reduced.

[0012]

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

FIGS. 1 to 4 show an embodiment of a sliding type magnetic head device for magneto-optical recording according to the present invention. The sliding magnetic head device 1 for magneto-optical recording according to the present embodiment has a structure shown in FIG.
As shown in (plan view), FIG. 2 (side view), FIG. 3 (exploded perspective view 1) and FIG. 4 (exploded perspective view 2), the surface of the magneto-optical recording medium, in this example, the magneto-optical disk 100 A magnetic head element 3 having a sliding contact portion 2 that comes into sliding contact with a support, and a support (a so-called head support) that supports the magnetic head element 3
4 and a fixed body 5 for fixing one end of the head support 4
And an elevating lifter 6 that moves up and down so as to contact and separate the head support 4, and thus the magnetic head element 3, from the magneto-optical disk 100 in contact with the head support 4.

The head support 4 serves as an arm for supporting the magnetic head element 3 and is formed using a metal plate, for example, a spring steel plate having a thickness of several tens μm to one hundred and several tens μm. The head support 4 has an elastic portion 8 that can be elastically deformed and an inelastic portion 9 acting as a rigid body, which are integrally formed. The end on the elastic portion 8 side, that is, the end that does not affect the operation of the elastic deformation is formed. The fixed portion 10 is fixed to the fixed body 5, and the distal end side of the inelastic portion 9 is configured as a mounting portion 11 that supports the magnetic head element 3. That is, the elastic portion 8 is provided at the bent portion 1 of the head support 4.
A through hole 14 is formed in an area of a flat spring steel plate from 3 to the fixing portion 10, and both side portions 15 sandwiching the through hole 14,
15 are formed. The inelastic portion 9 is formed by bending both side edges 16 of a spring steel plate extending from the elastic portion 8 toward the upper surface side to be a rigid body.

A cut-and-raised piece for holding a wiring member (in this example, a covered electric wire 71) to the magnetic head element 3, which will be described later, is provided at an intermediate portion of the inelastic portion 9 in the head support 4.
In this example, two cut-and-raised pieces 18 are formed on the lower surface side of the head support 4.

The head element mounting portion 11 formed on the distal end side of the head support 4 is formed so that the head element 3 can be mounted by a fitting method, a so-called slide snap fitting method. That is, the mounting portion 11 has an opening 1 at the front end side of the inelastic portion 9 where the magnetic head element 3 can be accommodated.
9 are formed on both inner edges of the opening 19 along the longitudinal direction of the head support 4.
0 [20A, 20B, 20C], and an elastic core pressing portion (core pressing spring) 21 for pressing the magnetic core of the magnetic head element 3 is extended obliquely toward the lower surface of the head support so as to face the inside of the opening 19. And formed integrally.

On the other hand, the magnetic head element 3 is shown in FIGS.
As shown in FIG. 10 (perspective view from the top) and FIG. 11 (perspective view from the back), the magnetic core 23 and the coil 24
And a coil bobbin 25 around which a coil 24 is wound. The lower flange 25b of the coil bobbin 25 is formed with a sliding contact portion 2 integrally sliding with the magneto-optical disk 100. The magnetic head element 3 is configured as a so-called magnetic field applying unit.

The magnetic core 23 is made of a magnetic material such as ferrite, for example, and has a center pole core 23a and a pair of side pole cores 23b provided on both sides of the center pole core 23a.
23c and a connecting portion 23d for connecting the base sides of the magnetic pole cores 23a, 23b, 23c to form a substantially E-shape as a whole. The center magnetic pole 23a of the magnetic core 23 is slightly longer than the side magnetic poles 23b and 23c, that is, the center magnetic pole 23a.
Are formed so as to protrude beyond the side magnetic poles 23b and 23c. A perpendicular magnetic field is applied to the signal recording layer (so-called magneto-optical recording layer) of the magneto-optical disk 100 from the center pole 23a of the magnetic core 23.

As shown in FIGS. 8, 9A and 9B, the coil bobbin 25 has a bobbin main body 25A formed of a resin material which can be formed with extremely high precision. A magnetic core insertion hole 26a into which the magnetic pole 23a is inserted is formed, and a magnetic core insertion hole 26b into which one side magnetic pole 123b of the magnetic core 23 is inserted is formed on a side portion. The coil 24 has a magnetic core insertion hole 26a.
Is wound around the bobbin main body 25A (so-called coil winding part 25D) so as to surround the bobbin main body 25A.

The bobbin main body 25A is formed so that the surface on the magnetic core insertion side is inclined so as to follow the inclination of the head support 4, and the magnetic core insertion holes 26a and 26b are formed on the inclined surface. A groove 29 into which the head 23 can be inserted is formed, and the engaging claw 20 in the head element mounting portion 11 of the head support 4 is formed on each side surface of the bobbin main body 25A.
[20A, 20B, 20C] engaging portion 30 [3
0A, 30B, 30C] are formed along the inclined surface. The central engaging portion 30B has an engaging claw portion 20B on its upper surface.
Are engaged, and the engaging portions 30A, 30B on both sides are engaged with the engaging claws 20A, 20C on the lower surfaces thereof, respectively, and
The upper surface of the engaging portion 30B is in contact with the lower surface of the engaging portion 30A.
C is formed above a line connecting the lower surfaces of C (see FIG. 16). The engagement portion 30A is hook-shaped so that the head element 3 can be locked at a predetermined position on the distal end side of the head support 4 when the head element 3 is fitted into the head element mounting portion 11 of the head support 4 by a slide snap method. Formed. The engaging portion 30 [30A, 30B, 30C] forms a mounting portion 28 to the head support 4.

The bobbin main body 25A has two terminal pins 27 [27A, 27B] implanted on one side thereof, and both ends of the coil 24 are wound around these terminal pins 27A, 27B. Soldered and fixed.

The substantially E-shaped magnetic core 25 is inserted into the coil bobbin 25. In the magnetic head element 3, the bottom surface of the coil bobbin 25, that is, the lower flange 25b
Bottom surface 28 of the magneto-optical disk 100 faces the signal recording layer, and the center pole core 23a inserted in the magnetic core insertion hole 26a faces the bottom surface 28 of the coil bobbin 25 facing this signal recording layer. (See FIG. 8).

The magneto-optical disk 100 of the magnetic head element 3
The sliding contact portion 2 that slides on the surface protrudes from the bottom surface of the bobbin main body 25A, that is, the bottom surface 28 of the lower flange 25b.
The sliding portion 2 can be formed integrally with the bobbin main body 25A.

The sliding portion 2 is located on the bottom surface of the coil bobbin 25 at the center position of the magnetic core of the magnetic head element 3 in the longitudinal direction of the head support 4, that is, the center position of the center pole core 23 a and the center position of the sliding portion 2. And the center position of the sliding contact portion 2 in the radial direction of the magneto-optical disk 100 is located on the inner peripheral side of the center position of the magnetic core of the magnetic head element 3 and thus the center position of the center pole core 23a. Formed. In the present example, the center position of the sliding contact portion 2 in the radial direction of the magneto-optical disk 100 is formed so as to be located on the inner peripheral side of the position of the center pole core 23a of the magnetic core 23 (see FIGS. 8 and 11). ).

Here, as shown in FIG. 9B, the bottom surface 2a of the sliding portion 2 and the bottom surface 25bb of the lower flange 25b of the coil bobbin 25 are formed with a slight step d. The sum of the step d and the thickness of the protective film formed on the surface of the magneto-optical disk 100 is equal to the center pole core 23 of the magnetic head element 3.
The distance between the center magnetic pole core 23a and the signal recording layer is always maintained at this distance by the sliding contact portion 2 slidingly contacting the magneto-optical disk 100.

The bottom surface of the sliding contact portion 2 (with the magneto-optical disk 100)
Sliding contact surface) 2a is related to the sliding direction of the magnetic head element 3.
Curved surface having the required radius, for example, as shown in FIG.
A single curvature surface (radius of curvature R₀)
Wear. On the other hand, as shown in FIG.
2 'is formed in a triangular cross section and the top is a magneto-optical disk
If it is in a state of point contact with the surface of
To keep the distance d constant even if the tool 100 moves up and down
Can be. To get closer to this principle structure, for example,
As shown in FIG. 13, the sliding contact portion 2
3 is formed with a plurality of curvature surfaces in the sliding direction,
The radius of curvature at the center of the contact surface is set to the minimum.
Can be achieved. In this example, it is formed by two curvature surfaces,
Curvature radius R at the center of sliding contact portion 2₁The rest of the
Radius of curvature R _TwoTo make the sliding contact portion 2 smaller.
You. This radius of curvature R₁Of the magneto-optical disk 100
Point contact with the surface. Center radius of curvature R₁as,
Preferably, for example, about 8 to 15 mm,
Radius of curvature R_TwoIs preferably, for example, 15 to 50 m
m. Single radius of curvature R₀And
Can be, for example, about 15 mm.

Coil bobbin 25 on which sliding contact portion 2 is formed
Is made of a material that is excellent in slidability and abrasion resistance, is lightweight, and has high dimensional accuracy when molded, since it is in sliding contact with the rotating magneto-optical disk 100. Is desirable. Therefore, as a material constituting the coil bobbin 25, for example, a liquid crystal polymer, polyphenylene sulfide (PPS), polyacetal (POM), polyarylate (PAR), polyimide 6, polyamide 66, polyethylene terephthalate (PET), polybutylene terephthalate (PBT) ,
Synthetic resin materials such as ultra high molecular weight polyethylene (UHMW-HE) and high molecular weight polyethylene (HMW-PE) are used.

The bobbin main body 25A is made of a resin having good heat resistance (usually poor sliding property), and the sliding contact portion 2 is made of a resin having good sliding property (normally poor heat resistance). It can also be formed. In this case, they may be integrally formed by two-color molding, or may be integrally formed by two parts. When the bobbin main body 25A is formed of, for example, a resin having high heat resistance that can withstand the heat of soldering, the metal pin pins 17 are not pressed after the coil bobbin 25 is formed, and the terminal pins 2
7 can be formed into a coil bobbin 25.

Fixed body 5 for supporting and fixing the head support 4
As shown in FIG. 3, a vertical portion 41 integrally attached to the apparatus main body side of the magneto-optical recording / reproducing device, and the vertical portion 41
And an extension portion 42 which is bent at a substantially right angle from the upper end of the support member 4 and is formed in a substantially L-shape. The extension portion 42 is integrally provided with a position regulating portion 43 [43A, 43B] of the support 4. Is done. The fixed body 5 is provided with a fixed portion 44 for supporting and fixing the fixed portion 10 of the head support 4 at a bent portion of a substantially L-shape. The fixing portion 44 supports and fixes a position that does not affect the elastic deformation operation of the elastic portion 8 of the head support 4, that is, the fixing portion 10. Fixing methods include screwing, bonding,
A fitting method, a laser welding method, or the like can be used. As an example, it is supported and fixed by a screwing method. 45 is a screw hole. The head support 4 can be fixed to the fixing portion 44 with an adhesive at an appropriate place together with a screw. As the adhesive, a thermosetting resin, an ultraviolet curable resin, or the like can be used.

In the fixed portion 44 on the fixed body 5 side, thick portions 46, 47 projecting above the mounting surface of the head support 4 are formed on both sides thereof. It is used for positioning the body 4.

When the magnetic head element 3 is lifted by the lifter 6 so as to be separated from the magneto-optical disk 100, the position restricting portion 43 of the fixed body 5 prevents the magnetic head element 3 from further rising. And comprises a pair of regulating plate portions (so-called ceiling plates) 43A and 43B extending to a position corresponding to the head support 4. Control plate portions 43A, 43B
The surface on the side of the head support 4 is formed in a groove shape into which the head support 4 enters, and is formed so as to regulate the upward and leftward movement of the head support 4.

Further, a support portion 51 for rotatably supporting the lifting / lowering lifter 6 is formed inside the bent portion of the fixed body 5 (that is, on the back surface of the fixed portion 44). This support portion 51
As shown in the drawing, the lifter 6 comprises a lifter support insertion groove 52 into which a lifting / lowering lifter 6 (see the figure) formed by bending a linear body described later can be inserted and rotatably fitted. Insertion groove 52
Is formed so as to have an appropriate clearance with respect to the rotation shaft 63 of the lifting / lowering lifter 6 and to be able to easily rotate. That is, as shown in FIGS. 18A and 18B, the back end 53 of the fixing portion 44 projects downward, and the receiving portion 5 is opposed to the base portion of the fixing portion 44 at an interval where the lifting lifter 6 can be inserted.
4 is formed, an insertion groove 52 is formed between the receiving portion 54 and the fixing portion 44, and the free end of the receiving portion 54 and portions located on both sides of the receiving portion 54 on the back surface of the fixing portion 44 facing the end portion. In addition, fitting claws 56 and 57 for preventing the lifter from falling out are provided, which protrude in the directions facing each other. Between the receiving portion 54 and the fixing portion 44, the insertion groove 52 of the lift 6
Is formed. As the fixed body 5, a resin or metal molded product, in this example, a resin molded product is used, and the elasticity of the receiving portion 54 allows the press-fitting of the lifter 6 into the insertion groove 52. The end 53 is provided for reinforcement. Further, a stopper portion 58 is formed on the base side of the extension portion 42 of the fixed body 5 to regulate the ascending / descending lifter 6 in the ascending position (see FIG. 3).

As shown in FIG. 3, the lifting lifter 6
It is formed by bending a linear body of a book. In this example, the metal linear body 60 is formed from a single metal linear body 60, that is, a central portion of the metal linear body 60 is brought into contact with the back surface of the head support 4 to support the head support 4 and one end of the head 61 is used as a head. The head support 4 is bent (e.g., bent in a perpendicular direction) in the plane of the support 4.
A rotating shaft 63 that fits into the insertion groove 52 by bending the other end side in the same direction,
The end of the rotating shaft 63 is folded back to form a lifter support 64, and the free end 63 is bent (for example, bent in the orthogonal direction) in a plane perpendicular to the plane of the head support 4, and becomes a power point. Are formed in the same plane. The lifting lifter 6 formed by bending a metal linear body has a moderate elasticity to itself, that is, when the head support 4 to be described later is flipped up and pressed against the regulating plate portions 43A and 43B, the regulating plate portion is formed. 43
A and 43B have elasticity enough to absorb the pressing force without deforming them.

The terminal pins 27 of the magnetic head element 3 [27
A, 27B], for example, a covered electric wire or a flexible printed circuit board can be used as a wiring member for supplying a drive current to the electric wire. In this example, the covered electric wire 71 is used, and the end of the covered electric wire 71 is electrically connected to the terminal pin 27 by, for example, solder. The covered electric wire 71 extends from the terminal pin 27 along the lower surface of the head support 4, passes through the through hole 14 of the head support 4 to the upper surface, and is wired along the upper surface of the fixed body 5.

When the covered electric wire 71 is used, the covered electric wire 71
Is wired at least from the magnetic head element 3 to the fixing portion 10 of the head support 4. 1 and 2 show an example in which the insulated wire 71 is directly connected from the terminal pin 27 of the magnetic head element 3 to the main body of the apparatus.
After being fixed by the fixing portion 40 of the vertical portion 41 of the device, it is connected to the apparatus main body. When the connection portion of the apparatus main body has a special structure and connection by a flexible printed board or the like is required, a connector 73 is provided on the fixed body 5 as shown in FIG. 27 to the connector 73 can be connected by a covered electric wire 71, and the connection portion of the apparatus main body to the connector 73 can be connected by another electric wire member 74 such as a flexible printed circuit board.

The covered electric wire 71 may extend along the upper surface or the lower surface of the head support 4 or the fixed body 5, but the above-described routing method is preferred in that it does not impose a burden on the elastic deformation of the head support 4. In other words, it is desirable that the terminal pins 27 extend along the lower surface of the head support 4, pass through the through holes 14, and follow the upper surface.

Next, the assembly of the above-described sliding type magnetic head device 1 for magneto-optical recording according to the present embodiment will be described.
As shown in FIG. 1, the fixing portion 10 of the head support 4, which is the end on the elastic portion 8 side, is disposed on the upper surface of the fixing portion 44 of the fixing body 5. At this time, the fixing portion 10 is positioned while being restricted in the width direction by the thick portions 46 and 47 on both sides of the fixing portion 44. In this state, the fixing portion 10 of the head support 4 and the fixing member 5 are fixed by the fixing method described above, in this example, a screw 76,
At the same time, they are bonded using a resin adhesive 77. In consideration of long-term use, it is preferable to use the resin adhesive 77 in combination.

The magnetic head element 3 is mounted on the head support 4 by a fitting method (so-called slide snap-in method). More specifically, as shown in FIGS. 15 and 16, a coil 24 is wound around a bobbin main body 25, its coil terminals are connected to terminal pins 27A and 27B, and a magnetic core element is mounted on the bobbin main body 25. 3 is inserted into the opening 19 from the back side of the front end of the head support 4 (shown by a dashed line in FIG. 15), and is slid and attached to the front end side of the head support 4 (shown by a solid line in FIG. 15). At the time of insertion into the opening 19 of the magnetic head element 3, the engaging portions 30A, 30B, 30C on both side surfaces of the bobbin main body of the magnetic head element 3
Are the engagement claws 20A, 20B, 20C on both inner sides of the opening 10.
And then the magnetic head element 3
By sliding to the tip end side of the head support 3,
The engaging claw portions 20A and 20C of the opening 19 are
Of the engaging portions 30A and 30C, and at the same time, the engaging claw portion 20B engages with the upper surface along the inclined surface of the engaging portion 30B. As a result, the engaging claw portions 20A, 20C push up the lower surfaces of the engaging portions 30A, 30C, and the engaging claw portion 20B exerts an elastic force to push down the upper surface of the engaging portion 30B. It is attached to the tip of the head support 4 (see FIG. 16). After the magnetic head element 3 is mounted in the opening 19 of the head support 3, the engaging projection 20 </ b> A is engaged with the hook-shaped engaging section 30, so that sliding in the reverse direction is prevented, and It does not come off the body 4.

The bobbin body 25 of the magnetic head element 3
The magnetic core 23 inserted into the bobbin main body 2 is pressed by the elastic pressing portion 21 on the head support 4 side.
5 (see FIGS. 15 and 17).

One end of a covered electric wire 71 for supplying a drive current to the coil 24 of the magnetic head element 3 is connected to the terminal pin 27 of the magnetic head element 3 by soldering or the like, and is arranged along the back surface of the head support 4. , Through the through hole 14 on the elastic portion 8 side, and connected to the device body side along the upper surface. Or,
As shown in FIG. 22, the terminal pin 27 and the connector 73 of the fixed body 5 are connected by a covered electric wire 71, and the connector 73 and the apparatus main body are connected by another wiring member 74.

As shown by the arrow a in FIG. 18A and FIG. 20, the lifting shaft 6 has its rotating shaft 63 fitted in the insertion groove 52 from the back side of the fixed portion 44 of the fixed body 5 by so-called snap-in, and is rotated. Support as much as possible. After being fitted in the insertion groove 52, the fitting claws 56 and 57 prevent the falling off. The lifting / lowering lifter 6 abuts on the back surface of the head support 4 where the lifting / lowering portion 62 at the end thereof is inclined while being supported by the fixed body 5, and the lifter support 64 is attached to the lower surface of the stopper 58 on the fixed body 5 side. The contact prevents the head support 4 from descending further.

In the above-mentioned sliding type magnetic head device 1 for magneto-optical recording, the power point 53 of the lifting / lowering lifter 6 is connected to the lifting / lowering operation mechanism of the apparatus main body in the magneto-optical recording / reproducing apparatus. The lifting / lowering lifter 6 moves the power point portion 65 up and down or back and forth by a lifting / lowering operation mechanism of the apparatus main body, thereby transmitting a force to the lifting / lowering portion 62 with its rotation shaft 63 as a center of rotation and moving the head support 4 up and down. Can be done.

At this time, when no external force is applied to the power point portion 65, the lifting / lowering portion 62 descends due to its own weight at the tip from the rotary shaft 63, that is, the weight of the lifting / lowering portion 62 and the supporting portion 61. Lifting unit 62
Is lowered, the lifter support portion 64 comes into contact with the stopper portion 58 of the fixed body 5, and the elevating portion 62 stops at the predetermined lower limit position. On the other hand, when the head support 4 jumps up (rises), the head support 4 comes into contact with the position regulating portion 43 and stops at a predetermined upper limit position.

Here, for example, when the head support 4 is pressed against the position restricting portion 43 by an excessive force due to an external impact or the like, the restricting plate portions 43A and 43B are elastically deformed and do not come to predetermined positions. When exposed to the above environmental conditions, there is a problem that the heights of the regulating plate portions 43A and 43B change. In order to prevent this, by giving elasticity to the metal linear body 60 of the lift 6, it is possible to control the force with which the head support 4 is pressed against the regulating plate portions 43A, 43B.

In the magneto-optical recording / reproducing apparatus, when recording an information signal on the magneto-optical disk 100, as shown in FIG. 5, the lifting lifter 6 descends, that is, the force portion 65 of the lifting lifter 6 moves. Is rotated upward about the rotation shaft 63, thereby lowering the elevating part 62 at the tip, and accordingly, the head support 4 also descends, and the sliding part 2 of the magnetic head element 3, which is a magnetic field applying part, is moved. Is a disk cartridge 10
1 is in sliding contact with the main surface 100a of the magneto-optical disk 100. The magnetic core 23 constituting the magnetic head element 3 is formed by the sliding contact portion 2 of the magnetic head element 3 slidingly contacting the surface corresponding to the signal recording layer of the magneto-optical disk 100 to be rotated.
In particular, the center pole core 23a is maintained at a fixed distance from the signal recording layer of the magneto-optical disk 100. When the magnetic head element 3 is in sliding contact with the magneto-optical disk 100, the elevating part 62 of the elevating lifter 6 is separated from the back surface of the head support 4.

When the magneto-optical recording / reproducing apparatus is stopped, during reproduction, or when the magneto-optical disk 100 is attached or detached, as shown in FIG. 6, the lifting lifter 6 rises, that is, the power point 65 of the lifting lifter 6 rotates. By rotating downward about the shaft 63, the elevating part 62 at the tip is raised, the head support 4 is flipped up, and the magnetic head element 3 is moved to the magneto-optical disk 1.
00 from the main surface 100a. By flipping the head support 4 and the magnetic head element 3 up and down by the lift 6, the mounting and dismounting of the magneto-optical disk 100 is facilitated, and at the same time, the magnetic head element 3 is inadvertently mounted on the disk cartridge 101 of the magneto-optical disk 100. To prevent collision. The lifting of the head support 4 by the lifting lifter 6 causes the restriction plate portions (ceiling plates) 43A, 43B of the fixed body 5 to rise.
Is stopped and does not rise any further. Further, since the head support 4 enters the grooves of the regulating plate portions 43A and 43B,
The horizontal movement of the head support 4 is also restricted. In particular,
When the head support 4 receives an external impact, the head support 4
The position is regulated by A and 43B, so that a problem due to an impact can be avoided.

According to the sliding type magnetic head device 1 for magneto-optical recording according to the above-described embodiment, the following effects can be obtained. Since the head support 4 is formed by one elastic portion 8 and one inelastic portion 9, the elastic portion 8 side is fixed to the fixed body 5, and the non-elastic portion 9 supports the magnetic head element 3. ,
The impact resistance can be significantly improved. That is, since the elastic portion 8 of the head support 4 only needs to apply a load for bringing the magnetic head element 3 into contact with the surface of the magneto-optical disk 100, the elastic portion 8 may be formed of a relatively strong elastic portion. As a whole, the head support does not require an elastic portion having a weak stiffness, so that the sliding type magnetic head device 1 for magneto-optical recording which is strong against external impact can be obtained.

Further, since the head support 4 having the elastic portion 8 having a relatively strong stiffness is used as described above, the amount of the magnetic head element 3 jumped up by an external impact is reduced, and therefore, when the head element is jumped up. The occupied space is reduced, and the thickness of the magneto-optical recording / reproducing apparatus can be reduced.

Since the center position of the magnetic core 23 of the magnetic head element 3 in the longitudinal direction of the head support 4, that is, the center position of the center pole core 23a and the center position of the sliding portion 2 are substantially coincident with each other, light It is possible to minimize the spacing with respect to the allowable mounting height variation of the magnetic disk 100 in the vertical direction, that is, the change in the interval between the central magnetic pole core 23a of the magnetic head element 3 and the signal recording layer of the magneto-optical disk 100. . Incidentally, when the sliding contact portion is separated from the magnetic head element in the longitudinal direction of the head support in the longitudinal direction, when the magneto-optical disk fluctuates in the vertical direction,
The contact angle between the magneto-optical disk and the sliding portion of the magnetic head element changes, and the change (spacing) between the magnetic core of the magnetic head element and the surface of the magneto-optical disk becomes larger than in the present embodiment.

As shown in FIGS. 12A and 12B,
The center magnetic pole core 23a is formed in a circular arc in the sliding direction of the magnetic head element 3 and in the radial direction of the magneto-optical disk 100 and is in point contact with the magneto-optical disk 100.
Of the signal recording layer of the magneto-optical disk 100 can be kept small. As shown in FIG. 13, a plurality of, in this example, two radii of curvature R ₁ and R ₂ (R ₁ <R ₂ ) in the sliding direction of the magnetic head element 3 as the sliding contact portion 2.
In formation and, when the radius of curvature of the center of the sliding contact portion 2 and R ₁ can be further reduced variation of the center pole core 23a and the signal recording layer interval of the magneto-optical disc 100. In other words, the distance between the center pole core 23a and the signal recording layer of the magneto-optical disk 100 can be maintained substantially constant even when the magneto-optical disk 100 moves up and down.

In the magnetic head element 3, the magnetic core 2
Since the third central magnetic pole core 23a faces the outside from the core insertion hole 26a of the coil bobbin 25, it can be closer to the signal recording layer of the magneto-optical disk 100, and information can be recorded well.

The center position of the sliding contact portion 2 in the radial direction of the magneto-optical disk 100 is aligned with the magnetic core 25 of the magnetic head element 3.
23, it is possible to record up to the very edge of the signal recording layer of the magneto-optical disk 100, as shown in FIG.

Since the magnetic head element 3 can be fixed to the tip of the inelastic portion 9 of the head support 4 by assembling by the slide snap-in method, the assembling can be easily performed without requiring an expensive assembling apparatus. it can. That is, the magnetic head element 3 is set so that the engagement claws 20A and 20B inside the opening 19 of the head support 4 fit between the coupling portions 30A and 30B and between the coupling portions 30B and 30C. The mating portions 30A, 30B, and 30C are engaged
20B, 20C, the engaging portion 30A and the engaging claw portion 20A, the engaging portion 30B and the engaging claw portion 20B, and the engaging portion 3
By pressing and supporting the OC and the engagement claws 20C, the state of attachment of the magnetic head element 3 to the head support 4 can be stabilized, and the workability of the attachment can be improved. When attaching the magnetic head element 3 to the head support 4, the magnetic core 25 is suppressed by the elastic suppressing portion 21 integrated with the head support 4, so that the magnetic core 25 can be held without increasing the number of components.

Since the sliding contact portion 2, the winding winding portion 25D and the mounting portion to the head support 4 in the magnetic head element 3 are integrally formed, the entire magnetic head element 3 can be made compact. . The elastic portion 8 and the non-elastic portion 9 constituting the head support 4 are integrally formed of a metal plate.
When the edge 16 is bent, a head support having an elastic portion 8 having an appropriate waist strength and a rigid inelastic portion 9 can be obtained. Since the elastic core pressing portion 21 for pressing the magnetic core 23 of the magnetic head element 3 is formed integrally with the inelastic portion 9, it is not necessary to separately provide a core pressing member. Therefore,
An inexpensive sliding magnetic head device 1 for magneto-optical recording can be provided.

The lifting lifter 6 is formed by bending a linear body, for example, a metal linear body 60.
The structure itself can be simplified and its manufacture can be facilitated. Since the lifting shaft mechanism of the lifting shaft lifter 6 having the simple structure is rotatably fitted into the insertion groove 52 formed on the fixed body 5 side, the lifting shaft lifter mechanism is configured. The structure of the lifting / lowering lifter mechanism itself can be simplified, and at the same time, the assembling workability of the lifting / lowering lifter mechanism can be improved. Since the lifting lifter 6 is formed by bending, only one molding die is required for the fixed body 5. Therefore, the lifting lifter mechanism can be provided at low cost.

When the lifting lifter 6 is composed of one metal linear body 60, it can have not only mechanical strength but also appropriate elasticity. Thus, even when the head support 4 is pressed against the position restricting portion 43 by excessive force due to, for example, an external impact, the lifting lifter 6
Thus, the excessive pressing force is absorbed, and problems such as deformation of the position restricting portion 43 can be avoided.

A covered electric wire 71 is used as a wiring for supplying a drive current to the coil 24 of the magnetic head element 3, and the covered electric wire 71 extends from the terminal pin 27 along the lower surface of the head support 4, and passes through the through hole 14. By wiring along the upper surface of the head support 4, it is possible to make it difficult to apply a load to the elastic deformation of the head support 4. The reason will be described with reference to FIGS.

FIG. 21A shows an example in which the insulated wire 71 is fixed to the fixed body 5 along the lower surface of the head support 4. In the case of this configuration, when the head support 4 is flipped up from the free state of the solid line position to the broken line position, the magnetic head element 3 becomes the elastic portion 8 of the head support 4 (the position corresponding to the through hole 14).
The insulated wire 71 is rotated around the bending point A of the insulated wire 71.
, Which causes a large load change with respect to the movement of the magnetic head element 3 in the height direction.

FIG. 21B shows an example in which the covered electric wire 71 is fixed to the fixed body 5 along the upper surface of the head support 4. In the case of this configuration, when the head support 4 is flipped up from the free state of the solid line position to the broken line position, the magnetic head element 3 becomes the elastic portion 8 of the head support 4 (the position corresponding to the through hole 14).
, The center of rotation of the covered electric wire 71 is the bent portion A of the covered electric wire 71, and the rigidity of the covered electric wire 71 pushes the magnetic head element 3. In this case as well, a large load change is caused for the movement of.

On the other hand, FIG. 21C shows an example (this embodiment) in which the covered electric wire 71 extends along the lower surface of the head support 4, passes through the through hole 14 to the upper surface, and follows the upper surface of the fixed body 5. In this configuration, when the head support 4 is flipped up from the free state at the solid line position to the broken line position, the magnetic head element 3
Rotates around the elastic portion 8 (the position corresponding to the through hole 14) of the head support 4, but the insulated wire 71 is compressed on the upper surface side of the fixed body 5 and is pulled on the lower surface side of the head support 4. Therefore, the forces are canceled, and the center of rotation of the insulated wire 71 is also substantially the same as the center of rotation of the head support 4.
Therefore, in this configuration, it is possible to suppress a load change with respect to the movement of the recording / reproducing apparatus head element 3 in the height direction.

As described above, the insulated wire 71 is connected to the terminal pin 27.
From [27A, 27B], along the lower surface of the head support 4,
If a configuration is adopted in which the magnetic head element 3 moves up and down by passing through the upper surface through the through hole 14 and extending along the upper surface of the fixed body 5, the load of the covered electric wire 71 is small, and the original elastic force of the head support body 4 reduces the load. The magnetic head element 3 can be brought into sliding contact with the magneto-optical disk 100.

The head support 4 is formed by a non-elastic portion 9 from the bent portion 13 on the elastic portion 8 side attached to the fixed body 5 to the tip end where the magnetic head element 3 is supported. So that the insulated wire 7
1 can be used. Insulated wire 71 as a wiring member
By using, the driving current supply means to the magnetic head element 3 can be provided at low cost.

In FIG. 1 described above, in the head support, the portion from the elastic portion 8 to the tip of the support is referred to as an inelastic portion 9.
Although the magnetic head element 3 is supported by the non-elastic portion 9, the magnetic head element 3 may be supported near the non-elastic portion. That is, for example, FIG.
As shown in FIG. 4, an inelastic portion 9 is formed as the head support member 4 except for the support portion 81 of the magnetic head element 3, and the above-described opening 19 is formed in the support portion 81 at the front end. 3 can be configured to be supported.
In the configuration of FIG. 23, substantially the same operation and effect can be obtained.

The elevating lifter mechanism according to the present invention described above is a sliding type magnetic head device 1 for magneto-optical recording comprising the above-described magnetic head element 3 and a head support 4 for supporting the same.
However, the present invention can be applied to a sliding type magnetic head device for magneto-optical recording including a magnetic head element and a head support having other configurations.

[0065]

【The invention's effect】

According to the sliding type magnetic head device for magneto-optical recording of the present invention, since the lifting lifter is formed by bending the linear body, the structure of the lifting lifter itself is simplified, and the manufacturing thereof is facilitated. can do. Since the lifting / lowering lifter mechanism is configured so that the lifting / lowering lifter of this simple structure is rotatably fitted into the insertion groove for supporting the lifter formed on the fixed body side, the lifting / lowering lifter mechanism itself is maintained while sufficiently maintaining the lifting / lowering lifter function. Can be simplified, and at the same time, the workability of assembling the lifter mechanism can be improved. Since the elevating lifter is formed by bending, and only one molding die is required for the fixed body, the elevating lifter mechanism can be provided at a low cost. As a result, this type of sliding type magnetic for magneto-optical recording is provided. The cost of the head device can be reduced.

When the lifting / lowering lifter is composed of a single metal linear body 6, the metal lifter has a mechanical strength and a suitable elasticity. In addition, an excessive pressing force of the support against the position restricting portion is absorbed by the lifting / lowering lifter, and problems such as deformation of the position restricting portion can be avoided.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a sliding magnetic head device for magneto-optical recording according to the present invention.

FIG. 2 is a side view of the sliding magnetic head device for magneto-optical recording of FIG.

FIG. 3 is an exploded perspective view of the sliding magnetic head device for magneto-optical recording of FIG. 1 (part 1).

FIG. 4 is an exploded perspective view of the sliding magnetic head device for magneto-optical recording of FIG. 1 (part 2).

FIG. 5 is an explanatory diagram of one operation of the sliding magnetic head device for magneto-optical recording of FIG. 1;

FIG. 6A is another operation explanatory view of the sliding magnetic head device for magneto-optical recording of FIG. 1; 6B is a sectional view taken along line AA in FIG. 6A.

FIG. 7 is an exploded view of the magnetic head element according to the embodiment.

FIG. 8 is a sectional view of the magnetic head element according to the embodiment.

FIG. 9A is a plan view of a coil bobbin around which a coil according to the present embodiment is wound. B is a side view thereof.

FIG. 10 is a perspective view of the magnetic head element according to the embodiment as viewed from above.

FIG. 11 is a perspective view of the magnetic head element according to the embodiment as viewed from the back surface.

FIG. 12 is a side view of an embodiment of a sliding contact portion of an A magnetic head element. B is a cross-sectional view along the line BB.

FIG. 13 is a side view of another embodiment of the sliding contact portion of the magnetic head element.

FIG. 14 is an explanatory view of a preferred principle of a sliding contact portion of the magnetic head element.

FIG. 15 is an explanatory diagram for mounting a magnetic head element on a head support.

FIG. 16 is a side view showing a partial cross section in a state where the magnetic head element is mounted on a head support.

FIG. 17 is a side view of a state where the magnetic head element is mounted on a head support.

FIG. 18 is a rear view showing a support portion of the lifting / lowering lifter in the fixed body A. It is a side view which shows the support part of the raising / lowering lifter in B fixed body.

FIG. 19 is a plan view showing an example of an elevating lifter. B It is a side view which shows an example of a lifting lifter.

FIG. 20 is an explanatory diagram for attaching a lifting lifter to a support portion of a fixed body.

21A to 21C are explanatory diagrams for comparing wiring methods of AC covered electric wires.

FIG. 22 is a configuration diagram showing another embodiment of wiring for supplying a drive current to a magnetic head element.

FIG. 23 is an explanatory diagram in an operation state of the sliding magnetic head device for magneto-optical recording according to the present embodiment.

FIG. 24 is a configuration diagram of a main part (head support) showing another embodiment of the sliding magnetic head device for magneto-optical recording according to the present invention.

[Explanation of symbols]

1 ... Sliding type magnetic head device for magneto-optical recording, 2 ...
Slide contact part, 3 ... magnetic head element, 4 ... head support, 5 ... fixed body, 6 ... elevating lifter, 8 ...
Elastic part, 9 ... inelastic part, 10 ... fixed part, 11
..Mounting parts, 14 ... through holes, 19 ... openings, 2
0 [20A, 20B, 20C]...
..Elastic core pressing part, 23 ... magnetic core, 24 ...
Coil, 25: Coil bobbin, 25A: Bobbin main body, 26a, 26b: Core insertion hole, 27 [27
A, 27B] ... terminal pin, 29 ... groove, 30
[30A, 30B, 30C] ... engaging part, 43 ...
Position regulating part, 43A, 43B ... regulating plate part, 44 ...
・ Fixed part, 51 ・ ・ ・ Support part, 58 ・ ・ ・ Stopper part,
Reference numeral 61 denotes a supporting portion of a lifting lifter, 62 denotes a lifting portion, 63 denotes a rotating shaft, 65 denotes a force portion, 71...
・ Coated wire, 73 ・ ・ ・ Connector, 74 ・ ・ ・ Other wiring members, 100 ・ ・ ・ Magneto-optical disk, 101 ・ ・ ・ Disk cartridge

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 31, 2001 (2001.1.3)
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

As shown in FIGS. 8, 9A and 9B, the coil bobbin 25 has a bobbin main body 25A formed of a resin material which can be formed with extremely high precision. A magnetic core insertion hole 26a into which the magnetic pole 23a is inserted is formed, and a magnetic core insertion hole 26b into which one side magnetic pole 23b of the magnetic core 23 is inserted is formed on a side portion. The coil 24 is wound around the peripheral surface of the bobbin main body 25A (so-called coil winding portion 25D) so as to surround the magnetic core insertion hole 26a.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction contents]

The bobbin main body 25A is formed so that the surface on the magnetic core insertion side is inclined so as to follow the inclination of the head support 4, and the magnetic core insertion holes 26a and 26b are formed on the inclined surface. A groove 29 into which the head 23 can be inserted is formed, and the engaging claw 20 in the head element mounting portion 11 of the head support 4 is formed on each side surface of the bobbin main body 25A.
[20A, 20B, 20C] engaging portion 30 [3
0A, 30B, 30C] are formed along the inclined surface. The central engaging portion 30B has an engaging claw portion 20B on its upper surface.
And the engaging portions 30A and 30C on both sides are engaged with the engaging claw portions 20A and 20C on the lower surfaces thereof, respectively, and
The upper surface of the engaging portion 30B is in contact with the lower surface of the engaging portion 30A.
C is formed above a line connecting the lower surfaces of C (see FIG. 16). When the engagement portion 30A is fitted to the head element mounting portion 11 of the head support 4 by a slide snap method, the head element 3 is moved to a predetermined position on the distal end side of the head support 4.
It is formed in a hook shape so that it can be locked at the position. The engaging portion 30 [30A, 30B, 30C] forms a mounting portion 28 to the head support 4.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

The substantially E-shaped magnetic core 23 is inserted into the coil bobbin 25. In the magnetic head element 3, the bottom surface of the coil bobbin 25, that is, the lower flange 25b
The bottom surface 25bb is on a surface opposed to the signal recording layer of the magneto-optical disc 100, the center pole core 23a inserted into the magnetic core insertion hole 26a is to face the bottom surface 25bb of the coil bobbin 25 opposite to the signal recording layer (See FIG. 8).

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0023

[Correction method] Change

[Correction contents]

The magneto-optical disk 100 of the magnetic head element 3
The sliding contact portion 2 that slides on the surface protrudes from the bottom surface of the bobbin main body 25A, that is, the bottom surface 25bb of the lower flange 25b. The sliding portion 2 can be formed integrally with the bobbin main body 25A.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction contents]

The bobbin main body 25A is made of a resin having good heat resistance (usually poor sliding property), and the sliding contact portion 2 is made of a resin having good sliding property (normally poor heat resistance). It can also be formed. In this case, they may be integrally formed by two-color molding, or may be integrally formed by two parts. When the bobbin main body 25A is formed of, for example, a resin having good heat resistance that can withstand the heat of soldering, the metal pin pins 27 are not press-fitted after the coil bobbin 25 is formed, and the terminal pins 2
7 can be formed into a coil bobbin 25.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0032

[Correction method] Change

[Correction contents]

Further, a support portion 51 for rotatably supporting the lifting / lowering lifter 6 is formed inside the bent portion of the fixed body 5 (that is, on the back surface of the fixed portion 44). This support portion 51
As shown in FIG. 18 , the lifter 6 includes a lifter support insertion groove 52 into which a lifting / lowering lifter 6 ( see FIG. 19 ) formed by bending a linear body to be described later can be inserted and rotatably fitted. The insertion groove 52 has an appropriate clearance with respect to the rotation shaft 63 of the lift 6 and is formed so as to be easily rotated. That is, as shown in FIGS. 18A and 18B, the back end 53 of the fixing portion 44 protrudes downward, and the receiving portion 54 is formed on the back base side of the fixing portion 44 so as to face the lifting lifter 6 at an interval where the lifting lifter 6 can be inserted. An insertion groove 52 is formed between the receiving portion 54 and the fixing portion 44, and a free end of the receiving portion 54 and portions located on both sides of the receiving portion 54 on the back surface of the fixing portion 44 facing the end portion, Fitting claws 56 and 57 are provided to prevent the lifter from falling off and protrude in opposite directions. The insertion groove 52 of the elevating lifter 6 is formed between the receiving portion 54 and the fixing portion 44. The fixed body 5 is made of a resin or metal molded product, in this example, a resin molded product, and allows the lifting lifter 6 to be pressed into the insertion groove 52 using the elasticity of the receiving portion 54. The end 53 is provided for reinforcement. further,
A stopper 58 is formed on the base side of the extension portion 42 of the fixed body 5 to regulate the ascending / descending lifter 6 in the ascending position (see FIG. 3).

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0033

[Correction method] Change

[Correction contents]

As shown in FIG. 3, the lifting lifter 6
It is formed by bending a linear body of a book. In this example, the metal linear body 60 is formed from a single metal linear body 60, that is, a central portion of the metal linear body 60 is brought into contact with the back surface of the head support 4 to support the head support 4 and one end of the head 61 is used as a head. The head support 4 is bent (e.g., bent in a perpendicular direction) in the plane of the support 4.
A rotating shaft 63 that fits into the insertion groove 52 by bending the other end side in the same direction,
The end side of the rotating shaft 63 is turned back to form a lifter support portion 64, and is further bent (for example, bent in a perpendicular direction) in a plane perpendicular to the plane of the head support 4 to be a free end which becomes a point of force.
65 is formed in the same plane. The lifting lifter 6 formed by bending a metal linear body has a moderate elasticity to itself, that is, when the head support 4 to be described later is flipped up and pressed against the regulating plate portions 43A and 43B, the regulating plate portion is formed. 43
A and 43B have elasticity enough to absorb the pressing force without deforming them.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction contents]

The magnetic head element 3 is mounted on the head support 4 by a fitting method (so-called slide snap-in method). That is, as shown in FIGS. 15 and 16, a magnetic head element in which a coil 24 is wound around a bobbin main body 25, its coil terminals are connected to terminal pins 27 A and 27 B, and a magnetic core 23 is mounted on the bobbin main body 25. 3, after <br/> inserted into the opening 19 from the front end rear side of the head support 4 (dashed line shown in FIG. 15), attached to slide toward the distal end side of the head support 4 (solid line shown in FIG. 15) . At the time of insertion into the opening 19 of the magnetic head element 3, the engaging portions 30A, 30B, 30C on both sides of the bobbin main body of the magnetic head element 3
Are the engagement claws 20A, 20B, 20C on both inner sides of the opening 19.
Of the magnetic head element 3
By sliding to the tip end side of the head support 4 ,
The engaging claw portions 20A and 20C of the opening 19 are
Of the engaging portions 30A and 30C, and at the same time, the engaging claw portion 20B engages with the upper surface along the inclined surface of the engaging portion 30B. Thereby, the engaging claw portions 20A and 20C push up the lower surfaces of the engaging portions 30A and 30C, and the engaging claw portion 20B applies an elastic force to push down the upper surface of the engaging portion 30B. It is attached to the tip of the head support 4 (see FIG. 16). The magnetic head element 3, after preparative scheme for the head support 4 of the opening 19. Since the engaging portion 20A is engaged with the engagement portion 30A of the hook, opposite direction of the slide is prevented, the head support It does not come off the body 4.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Change

[Correction contents]

In the above-described sliding type magnetic head device 1 for magneto-optical recording, the power point 67 of the lifting / lowering lifter 6 is connected to the lifting / lowering lifter operating mechanism of the apparatus main body in the magneto-optical recording / reproducing apparatus. The lifting / lowering lifter 6 moves the power point portion 65 up and down or back and forth by a lifting / lowering operation mechanism of the apparatus main body, thereby transmitting a force to the lifting / lowering portion 62 with its rotation shaft 63 as a center of rotation and moving the head support 4 up and down. Can be done.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction contents]

According to the sliding type magnetic head device 1 for magneto-optical recording according to the above-described embodiment, the following effects can be obtained. The head support 4 is formed with one elastic portion 8 in one non-elastic portion 9, an elastic portion 8 side is fixed to the fixed body 5, since the non-elastic portion 9 is configured to support the magnetic head element 3 And the impact resistance can be significantly improved. That is,
The elastic portion 8 of the head support 4 includes the magnetic head element 3
Can be formed by a relatively stiff elastic portion, and the entire head support does not require a stiff elastic portion as a whole. As a result, a sliding magnetic head device 1 for magneto-optical recording that is resistant to external impact can be obtained.

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0052

[Correction method] Change

[Correction contents]

The center position of the sliding contact portion 2 in the radial direction of the magneto-optical disk 100 is determined by the magnetic core 23 of the magnetic head element 3.
23, it is possible to record up to the very edge of the signal recording layer of the magneto-optical disk 100, as shown in FIG.

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0053

[Correction method] Change

[Correction contents]

Since the magnetic head element 3 can be fixed to the tip of the inelastic portion 9 of the head support 4 by assembling by the slide snap-in method, the assembling can be easily performed without requiring an expensive assembling apparatus. it can. That is, the magnetic head element 3 is set so that the engagement claws 20A and 20B inside the opening 19 of the head support 4 fit between the coupling portions 30A and 30B and between the coupling portions 30B and 30C. The mating portions 30A, 30B, and 30C are engaged with the engaging claw portions 20A,
20B, 20C, the engaging portion 30A and the engaging claw portion 20A, the engaging portion 30B and the engaging claw portion 20B, and the engaging portion 3
By pressing and supporting the OC and the engagement claws 20C, the state of attachment of the magnetic head element 3 to the head support 4 can be stabilized, and the workability of the attachment can be improved. When the magnetic head element 3 is attached to the head support 4, the magnetic core 23 is suppressed by the elastic suppressing portion 21 integrated with the head support 4, so that the magnetic core 23 can be held without increasing the number of components.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0060

[Correction method] Change

[Correction contents]

On the other hand, FIG. 21C shows an example (this embodiment) in which the covered electric wire 71 extends along the lower surface of the head support 4, passes through the through hole 14 to the upper surface, and follows the upper surface of the fixed body 5. In this configuration, when the head support 4 is flipped up from the free state at the solid line position to the broken line position, the magnetic head element 3
Rotates around the elastic portion 8 (the position corresponding to the through hole 14) of the head support 4, but the insulated wire 71 is compressed on the upper surface side of the fixed body 5 and is pulled on the lower surface side of the head support 4. Therefore, the forces are canceled, and the center of rotation of the insulated wire 71 is also substantially the same as the center of rotation of the head support 4.
Therefore, with this configuration, it is possible to suppress a load change with respect to the movement of the head element 3 of the recording / reproducing apparatus in the height direction.

[Procedure amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0067

[Correction method] Change

[Correction contents]

[0067] When configuring a single metal wire-like member or al the elevating lifter, which has a mechanical strength, it is possible to have a moderate elasticity, when the support is thrown up excessive pressure In addition, an excessive pressing force of the support against the position restricting portion is absorbed by the lifting / lowering lifter, and problems such as deformation of the position restricting portion can be avoided.

[Procedure amendment 15]

[Document name to be amended] Statement

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 13 is a side view of another embodiment of the sliding contact portion of the magnetic head element.

[Procedure amendment]

[Submission date] February 2, 2001 (2001.2.2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Change

[Correction contents]

In the above-mentioned sliding magnetic head device 1 for magneto-optical recording, the power point portion 65 of the lifting / lowering lifter 6 is connected to the lifting / lowering lifter operating mechanism of the apparatus main body in the magneto-optical recording / reproducing device. The lifting / lowering lifter 6 moves the power point portion 65 up and down or back and forth by a lifting / lowering operation mechanism of the apparatus main body, thereby transmitting a force to the lifting / lowering portion 62 with its rotation shaft 63 as a center of rotation and moving the head support 4 up and down. Can be done.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tomoyuki Takahashi 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Michiaki Samurai 6-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Inventor Yuko Konno 6-35 Kita Shinagawa, Shinagawa-ku, Tokyo Sony Corporation F-term (reference) 5D075 CF08 5D076 AA02 CC01 DD01 DD09 DD22 FF05 GG07

Claims (2)

[Claims] A head element having a sliding contact portion for slidingly contacting the magneto-optical recording medium, a support for supporting the head element, a fixed body for fixing the support, and an elevating lifter for elevating the support. The lifting lifter is formed by bending a linear body, and the lifting lifter is inserted into a lifter supporting insertion groove having a lifter drop-off preventing claw portion formed at one position of the fixed body. A sliding magnetic head device for magneto-optical recording, wherein the sliding magnetic head device is rotatably supported. 2. The sliding magnetic head device for magneto-optical recording according to claim 1, wherein said lifting lifter is formed of one metal linear body.