JPH06195850A - Head structure and medium for information recording/ reproducing device - Google Patents

Abstract

PURPOSE:To reduce friction between the medium and the head by making the rotation of a magnetic head possible following the surface vibration of an information recording medium, making the height of its rotary fulcrum roughly the same as those of the head and the medium and reducing the off- track quantity of a recording/reproducing track. CONSTITUTION:A head 10 is supported on the rear part of a carriage 6 point- touching at 10a, a head chip 9 and a recording medium 8 are pressed by a head spring 12 from the head 10 so that they are brought into contact by a proper touching force and they are moved up and down in an arrow direction 20 following the surface vibration of media 7 and 8. The height of the rotary fulcrum 10a of the head 10 and that of a touching surface where the head chip 9 of the head 10 is brought into contact with the surface of the recording layer 8 are made roughly the same.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording or reproducing head of an information recording / reproducing apparatus and a medium for the information recording / reproducing apparatus.

[0002]

2. Description of the Related Art A known floppy disk drive head structure will be described as an example of the prior art with reference to FIG.

In the drawing, reference numeral 5 is a guide rail which serves as a linear guide for causing the lower head 6 and the upper head 10 of the floppy disk drive to seek in the radial direction of a disk 8 which is an information recording medium, and at the same time, the lower head. It has the function of determining the height of 6. It is well known that head chips 9 and 30 fixed to the lower head 6 and the upper head 10 have a magnetic action. Reference numeral 11 denotes a spring means, one end of which is insert-molded and fixed to the upper head 10 and the other is fixed to the lower head 6 with a screw.

The operation will be described.

A disk 8 mounted on a turntable on the spindle motor and clamped is driven to rotate by a well-known spindle motor. At this time, the disk 8 is sandwiched by the head chip 30 of the lower head 6 and the head chip 9 of the upper head 10 from both upper and lower sides, and the upper surface of the turntable (the lower surface of the disk 8).
And the upper surface of the head chip 30 of the lower head 6 is guided by the height and rotates. The disk 8 is appropriately pressed between the head chip 9 of the upper head 10 and the head chip 30 of the lower head 6 by the spring force of the head spring 12.

To explain this state in more detail, the upper surface of the head chip 30 on the lower head 6 and the upper surface of the turntable must ensure the horizontality of the disk 8. This is strictly set by height adjustment.

As is well known, the floppy disk 8 is made of a flexible material and is supported from the outside by a known jacket and a liner provided inside the jacket, but the levelness is not good. However, when information is recorded and reproduced on the disk 8 by the heads 6 and 10 rotated by the spindle motor, as shown in FIG.
As shown in FIG. 5, the horizontality is corrected only in the vicinity of the head by the action of the head chips 9 and 30 and the turntable.

In this way, with the disk 8 placed horizontally, the lower head 6 and the upper head 10 record information on the required tracks of the disk by the action of the head chips 30 and 9, or the information is recorded. Information can be reproduced.

Since the disk 8 is guaranteed to be horizontal by the above operation, it can be normally reproduced or recorded even if the disk 8 is repeatedly attached to and detached from the spindle motor or is clamped by another drive and reproduced. Is.

Therefore, in the information recording / reproducing apparatus such as the conventional type floppy disk drive, the height of the lower head 6 should be adjusted once and should not move with respect to the turn table if fixed.

There are two cases in which the upper head 10 which is in point contact with the lower head 6 at 10a and can rotate up and down rotates at the fulcrum. One is the disk 8 and the information recording / reproducing apparatus. When the disk 8 is attached and detached, the disk 8 and the upper head 10 and the head chip 9 are released so as not to interfere with each other, and the other is even when the thickness of the disk 8 slightly changes. There was a case where the chips 9 and 30 were moved up and down by the action of the head spring 12 so as to come into close contact with the front and back of the disk, or against the pressing action of the head spring.

However, the amount of vertical movement of the latter is 0.05 mm
Since it is the front and back, it moves up and down about the fulcrum 10a (see FIG.
The position of the head chips 9 and 30 is displaced in the radial direction of the disk 8 due to (indicated by arrow 50), and the so-called OFF track amount, which deviates from the above-mentioned recording track, is not a practical problem. For this reason, the height of the fulcrum 10a and the height of the turntable (the height of the back surface of the disk 8) were set without consideration, and the difference H in height between the two shown in FIG. Products with the difference of are not rare.

[0013]

However, in the floppy disk drive, the upper and lower heads 6 and 1 are
0 or the head chips 9 and 30 provided on the head horizontally guide the disk 8 made of a flexible material as described above so that the horizontality is completely maintained at least at the recording or reproducing position close to the head means. Because it was dripping
When the seek operation was performed on the recording track to reproduce the information, the information could be reproduced on the recording track by turning on the track with some accuracy.

However, the medium used in the present invention, in particular, the well-known optical read-only medium having poor flexibility called a CD, is used as a base material and a new medium having a magnetic recording layer formed on one side thereof is used. When the head applied to each of the types of media is to be operated, the magnetic recording layer is rotated together with the surface runout of the base material because it is integrally configured with the optical read-only medium having poor flexibility. Will be done,
The magnetic recording head is turned on on the recorded track.
It had the drawback of not being able to track.

[0015]

The constitution of the present invention for solving the above-mentioned problems comprises: 1. a medium for recording / reproducing information, a spindle motor which is a driving means of the medium, and a head which comes into contact with and acts on the medium. When the medium is driven by the spindle motor, the fulcrum position for displacing the head following the surface wobbling of the medium is substantially the same as the surface height of the head corresponding to the medium. To do.

2, an optical read-only medium, a magnetic recording layer disposed on the surface of the medium, a spindle motor for driving these integrated media, a magnetic head contactable with the magnetic recording layer, and a surface wobbling of the medium. The magnetic head is characterized in that it is composed of a rotation fulcrum of the magnetic head for following, and the height of the rotation fulcrum is substantially the same as the height of the magnetic recording layer.

3, an optical recording / reproducing medium, a low-friction material arranged on the surface of the medium, a spindle motor for driving these integrated media, and an optical recording operation which can contact the low-friction material. The magnetic head is composed of a rotation fulcrum of the magnetic head for following the surface wobbling of the medium, and the height of the rotation fulcrum is substantially the same as the height of the contact point of the low friction material and the magnetic head. Characterize.

4. In the above 1 to 3, the difference in height between the fulcrum and the other is within 2.5 mm.

5. A low friction material for reducing the contact friction of the magnetic head for assisting the optical recording operation is disposed on at least one surface of the optical recording / reproducing medium.

6. In an integrated medium in which a low friction material for reducing contact friction of a magnetic head for assisting the optical recording action is arranged on an optical recording / reproducing medium, the low friction material is used as a base material of the medium. It features an adhesively fixed structure.

7. In an integrated medium in which a low friction material for reducing contact friction of a magnetic head for assisting the optical recording action is arranged on an optical recording / reproducing medium, the low friction material is used as a base material of the medium. It features a vapor-deposited or sputtered structure.

8. An integrated medium in which a low friction material for reducing contact friction of a magnetic head for assisting the optical recording action is arranged on an optical recording / reproducing medium, and the low friction material is used as a base material of the medium. Characterized by the structure that is applied and fixed.

9. In an information recording medium having a structure in which a magnetic head for assisting the optical recording action contacts at least one surface of the optical recording / reproducing medium, the base material of the medium is composed of the low friction material. It is characterized by

[0024]

【Example】

 (Embodiment 1) A detailed description will be given with reference to FIGS. 1, 2 and 3.

FIG. 1 is an assembled side view showing a first embodiment of the present invention. FIG. 2 is an enlarged view of the main part of FIG. FIG. 3 is an assembly plan view of FIG. 1.

In the figure, reference numeral 1 is a contour line of the information recording / reproducing apparatus, and 2 is a spindle motor fixed to the information recording / reproducing apparatus, which holds a turntable 3. Reference numeral 4 denotes a clamper which has a function of clamping the disk integrally formed with the information recording media 7 and 8 by magnetic attraction in cooperation with the turntable 3. Reference numeral 5 is a guide rail which is fixed to the same member as the spindle motor 2 and has a guide function for the carriage 6 to seek in the radial direction of the disk, and determines the height of the carriage 6 with respect to the upper surface of the turntable 3. ing. Reference numeral 9 is a head chip that constitutes a head means having a magnetic action, 10 is a head that supports the head chip 9, 11 is a leaf spring, one end of which is fixed by insert molding to the rear portion of the head, and the other end of which is the aforementioned It is fixed to the rear portion of the carriage 6 with screws. Reference numeral 12 is a head spring having a function of pressing the head 10 and the head chip 9 which are the head means, to the magnetically recordable and reproducible medium 8.

An optical head 15 has a well-known structure and function. Laser light is emitted from the rear surface of the read-only medium 7 such as the CD through the lens of the optical head 15 and reflected by the reflection surface. It is well known that the light returns to the inside of the optical head 15 and is optically processed.

The optical reproducing operation by the optical head 15 is performed in a non-contact manner with respect to the medium 7, which causes friction load on the spindle motor 2 for driving the medium 7 and 8. It has the great advantage that it does not cost.

Therefore, in general, the optical head 15 is installed with the lens and the back surface of the medium 7 separated by about 1 mm, and the medium 7 is clamped by the turntable 3 of the spindle motor 2 and rotated. At this time, even if the medium 7 wobbles up and down with an amplitude of about 1 mm at worst due to the horizontality of the turntable 3, the verticality of the spindle motor to the spindle, the flatness of the medium 7, and the like. Will never come into contact.

Since the read-only medium 7 such as a CD or CD-ROM is injection-molded with a transparent resin, the flatness varies greatly. However, as in the present invention, the base material of the read-only medium 7 such as a CD is the same. In the information recording / reproducing apparatus having the magnetic recording layer 8 formed on one surface and capable of recording on the magnetic recording layer 8, the range of use is remarkably wide as compared with the conventional type reproduction-only apparatus having only the reproduction function. .

For example, by putting the read-only information and the control information for controlling the operation of the magnetic heads 9 and 10 in the read-only medium 7, the read-only information and the newly magnetically recorded information are interlocked. It is possible to work.

Then, this function is performed by the above-mentioned CD or C.
With the existing technology used for D playback device, floppy disk and floppy disk drive,
An information recording / reproducing apparatus having such a structure is expected because it can be easily achieved.

However, as described above, when the magnetic recording layer 8 is fixed to the base material of the read-only medium 7 having poor flexibility such as the CD by adhesion, vapor deposition, sputtering, coating or the like, the magnetic recording layer 8 is also formed. As described above, the surface wobbling occurs with an amplitude of about 1 mm.

The head 10 is, as described above, shown in FIGS.
As shown in FIG. 5, the carriage 6 is supported by point contact at the rear portion of the carriage 10 and is pressed from above the head 10 by a head spring 12 so that the head chip 9 and the medium 8 come into contact with each other with an appropriate contact force. Therefore, it follows the surface wobbling of the information recording media 7 and 8 and moves up and down in the direction shown by the arrow 20 in FIG.

However, in the present invention, as shown in FIGS. 1 and 2, the rotation fulcrum 10a of the head 10 and the head 10 are
Is characterized in that the heights of contact surfaces of the head chips 9 contacting the surface of the magnetic recording layer 8 are set to be substantially the same.
If this can be perfectly matched as shown in FIG. 2, when the surface deviation of the magnetic recording layer 8 has an amplitude of about 1 mm, and when recording is performed by the head 10 and the head chip 9,
The information recording medium 7 during reproduction of the recording track,
The disk in which 8 is integrated is the spindle motor 2
If the difference between the height of the magnetic recording layer at the time of recording and the height of the magnetic recording layer at the time of reproducing is 1 mm, the head chip is re-clamped with respect to the turntable 3. 9 and the rotation fulcrum 10a have a linear distance, but in a general structure, about 10 μ
Off track of m occurs.

Since the width of the magnetic recording track is about 150 μm, even if there are other OFF track factors (expansion and contraction of the medium due to temperature characteristics, humidity characteristics, etc.) with this OFF track amount, within the normal range, No troubles such as the recorded information cannot be reproduced will not occur.

However, as in the present invention, the rotation fulcrum 10
a and the height of the magnetic recording layer 8 are not set to be the same, there is a deviation of about 4 mm between the heights, the height of the recorded recording track surface and the track surface at the time of reproduction. When there is a difference of about 1 mm as the surface runout due to the above factors between the same points, the head 10 and the head chip 9 are in contact with the magnetic recording layer 8 at the time of reproducing, When the head chip 9 is displaced about the fulcrum in the direction of the arrow 20 in FIG. 2 and the head chip 9 is displaced in the X direction (shown in FIG. 2) corresponding to the surface runout of 1 mm,
Not only this direction but also the Y direction is displaced by about 100 μm. In this case, it is necessary to reproduce the recording track while generating an OFF track corresponding to 100 μm.

As described above, the recording track has a width of about 150 μm, but if the factor causes the 100 μm OFF track, it is no longer possible to read the information on the recording track when the other factors mentioned above are included. It will be impossible.

As described above, according to the present invention, the optical read-only medium 7 is used as the base material, and the recording or reproduction is performed on the information recording medium integrally formed with different kinds of media in which the magnetic recording layer 8 is arranged on one surface of the base material. It is possible to greatly improve the reliability of the information recording / reproducing apparatus having a structure having a function.

When the information recording / reproducing apparatus ejects the disk in which the information recording mediums 7 and 8 are integrated or when the disk is attached to the information recording / reproducing apparatus, it is possible to perform the above-mentioned operation by a well-known external operation. The head means, that is, the head 10 and the head chip 9 are the rotation fulcrums 10a.
It can be rotated to the position shown by the imaginary line in Fig.
When the head means is retracted to this position, these media or the cartridge containing the media can be attached and detached using the space, and there is no adverse effect even if the rotation fulcrum 10a is set to the above position.

In the state shown in FIG. 2, the carriage 6 and the head means 9 and 10 can be sought in the radial direction of the disk along the guide rail 5 by a known step motor (not shown). Information can be recorded and reproduced on the necessary tracks.

Of course, the information can be read by the cooperation of the optical head 15 and the read-only medium 7, and the head means 9 and 10 perform recording and reproducing operations under the control of the read control information. However, the information recording / reproducing apparatus can be effectively used by relating these pieces of information.

Now, the limit of the difference between the height of the rotation center 10a of the head means and the height of the contact surface between the head means and the magnetic recording layer 8 is 2.
5 mm is reasonable.

This is because when the surface wobbling of the magnetic recording layer 8 has an amplitude of 1 mm, the height from the fulcrum is 2.5.
At the position of mm, the difference between the heights of the same point on the recording track surface at the time of recording and the track surface at the time of reproducing (height of the head chip 9 at the same point on the recording track) is 1 mm. .

In this case, the head 10 rotates in the direction of the arrow 20 in FIG. 2 by the amount corresponding to the surface runout amount of 1 mm with the rotation fulcrum 10a as the rotation center, and the length of the head 10 is as described above. Same as the value of
When the F track amount is calculated, the deviation amount of the head chip 9 fixed to the head 10 in the Y direction is 60 μm, which means that an off track of 60 μm is generated.

Even if the other OFF track factors are taken into consideration with respect to the track width of 150 μm, the head chip is placed on the track, and the signal reproduction is possible although the margin is poor.

Considering this point, the information recording medium 7
Assuming that the amount of surface wobbling and the amount of surface wobbling caused by the spindle motor are as they are, the height of the rotation center 10a of the head means and the height of the contact surface between the head means and the magnetic recording layer 8 are The limit of the difference is preferably 2.5 mm. (Embodiment 2) The embodiment 2 will be described in detail with reference to FIG. 5, but the description of the embodiment 2 is omitted and the same reference numerals as those in the embodiment 1 have the same names and the same functions.

FIG. 5 is a side view showing a known magneto-optical recording type information recording / reproducing apparatus, which includes a disc 70 which is a recordable / reproducible information recording medium made of a transparent resin material having poor flexibility. .

As is well known, a head chip 9 composed of a coil heats the recording layer of the disk 70 with the laser light by the cooperative action with the laser light from the optical head 15 found in the first embodiment, and again. If necessary in order to change the direction of the holding magnetic field when cooled, it has the effect of reversing the direction of the magnetic pole to generate an external magnetic field in the recording layer, by which the magnetization direction of the recording layer is determined, It is well known that the optical head 15 can detect the action of changing the reflected light from the recording layer depending on the magnetization direction when the laser light for reproduction is emitted from the optical head to record, reproduce or erase information. Is the street.

Therefore, as shown in FIG. 5, the head chip 9 is set above the information recording medium 70 (not shown in FIG. 5) on the opposite side of the optical head. The head chip 9 needs to have a function of reversing the direction of the magnetic field at high speed, and is desired to be as small as possible in terms of inductance. Of course, the magnetic force must also be strong, but in order to do so, the decisive factor is whether the head chip 9 can be placed close to the recording layer of the information recording medium 70.

Therefore, in the present invention, in order to make the head chip 9 as small as possible and bring it closer to the recording layer, the head chip 9 is adhered, vapor-deposited, sputtered or coated with the low friction material 80 on one surface of the information recording medium 70. Alternatively, a medium structure in which the base material itself of the information recording medium 70 is made of a low friction material is adopted, and the head chip 9 is brought into contact with the low friction material 80.

Therefore, in the vicinity of the recording layer with low power,
In addition, it became possible to generate a strong magnetic field at high speed and reverse it.

However, as the head chip 9 is made smaller, the range in which the required magnetic field strength is generated is limited,
When information is to be recorded on the information recording medium 70, the laser beam from the optical head has a beam diameter of about 1 μm, so it is necessary to turn on the track with higher accuracy. Although it is rougher than that, it is necessary to set the ON track on the required track with an accuracy of 0.1 mm unit.

As described in the first embodiment, the height of the contact surface of the head chip 9 with the low friction material 80 and the rotation fulcrum 10 of the head 10 to which the head chip 9 is fixed.
If the heights of a are substantially the same, the magnetic head means 9 and 10 for generating the auxiliary magnetic field for the recording action in the magneto-optical information recording / reproducing apparatus are provided on the necessary track of the information recording medium 70. Even if there is some surface wobbling, it is possible to accurately turn on the track, and it is possible to efficiently generate a magnetic field.

The head chip 9 has a head spring 12
By this action, the surface wobbling of the information recording medium 70 is well followed.

The difference in height between the rotation fulcrum of the head described in the present invention and the contact surface between the head chip and the magnetic recording layer 8 or the low friction material 80 is the difference between the two, whichever is higher. The effects of the present invention can be produced if the distances are substantially the same.

Further, one of the characteristics of the present invention is that the low friction material 8 in which the head chip 9 constitutes the information recording medium 70.
It is in contact with 0. By doing so, it is possible to bring the head chip 9 close to the recording layer, but if the head chip 9 is brought into direct contact with the information recording medium 70, the frictional resistance increases and the load on the spindle motor increases. Not only that, the contact surface is worn. However, by interposing the low friction material 80 between the head chip 9 and the base material of the information recording medium 70 as in the present invention, the problems of the increase in friction load and wear can be solved.

From these points, the low friction material 80
It is desirable to make the thickness as thin as possible for durability.

The low friction material 80 is used as the information recording medium 70.
The structure that adheres to is the simplest and the equipment is good, but it is not easy to adhere thin plates with a large area to a flat surface.
From this point of view, the construction of the base material of the information recording medium 70 by steps such as vapor deposition, sputtering, and coating requires investment, but is preferable in terms of the thickness of the low friction material 80, its flatness, and the like.

Further, as shown in FIGS. 5 and 6, it is also possible to install the low friction material 80 on one surface of the base material of the information recording medium 70, as shown in FIG. It is also possible to install the low friction material 80 on both sides of the base material.

If the base material itself of the information recording medium 70 is made of a low friction material that does not interfere with the optical action, the low friction material 80 can be omitted and the manufacturing process of the information recording medium can be simplified. The cost can be reduced. In addition, warpage due to a difference in expansion coefficient, a difference in water absorption rate, and the like can be prevented as compared with the case of using different materials.

[0062]

As described above, according to the present invention, a CD or a CD-RO which is usually used as a read-only medium is used.
A function capable of magnetic recording can be added to an optical read-only medium such as M, and the above-mentioned various functions can be provided by using the medium and the information recording / reproducing apparatus for the medium. It is possible to provide these functions at a low cost as compared with a known magneto-optical disk device, a mini disk player or the like having a function.

Although the floppy disk drive has a recording / reproducing function and is manufactured at low cost,
Normally, the amount of information that can be stored in one floppy disk is about 1 megabyte, and the usable range is limited. However, in the structure of the present invention, when the standard of CD is adopted as the read-only medium, it is read as read information. 540 megabytes, and a recording capacity of about 500 kilobytes on the magnetic recording layer can be secured, which can add an attractiveness to the floppy disk drive.

If the head structure disclosed in the present invention is adopted for the magneto-optical recording type information recording / reproducing apparatus and the head structure is adopted for the magnetic field reversing magnetic head, the magnetic head can be made compact. It becomes possible to approach the recording layer of the information recording medium and to contact the information recording medium. Even with such a configuration, the load on the spindle motor does not increase, and the information recording medium and information recording using the information recording medium Neither of the reproducing devices will impair durability such as abrasion. Thus, a magnetic head capable of high-speed processing can be achieved.

Further, if the magnetic head is downsized, the range of the required magnetic field strength is reduced by the magnetic head, and it is necessary to accurately turn the track on the required track. However, according to the present invention, the fulcrum and the height of the head are increased. By taking account of this, it is possible to prevent a fatal OFF track in the normal surface wobbling range of the disk, and it is possible to increase the reliability.

[Brief description of drawings]

FIG. 1 is a left assembly side view of an information recording / reproducing apparatus of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is an assembly plan view of FIGS. 1 and 2;

FIG. 4 is an enlarged view of a main part showing a conventional example.

FIG. 5 is a left assembly side view showing a second embodiment of the present invention.

FIG. 6 is a side view of an information recording medium showing a structure in which a low friction material is provided on only one surface of the information recording medium as one embodiment of the present invention.

FIG. 7 is a side view of an information recording medium showing a structure in which low friction materials are installed on both front and back surfaces of the information recording medium as another embodiment of the present invention.

[Explanation of symbols]

 1: Outline shape line of information recording / reproducing apparatus 2: Spindle motor 3: Turntable 4: Clamper 5: Guide rail 6: Carriage 7: Reproduction-only information recording medium by optical system 8: Magnetic recording layer 9, 30: Head chip 10 : Head 10a: Head rotation fulcrum 11: Leaf spring 12: Head spring 15: Optical head 70: Base material of information recording medium 80: Low friction material

Claims (9)

[Claims] 1. A medium for information recording / reproducing, a spindle motor which is a driving means of the medium, and a head which comes into contact with and acts on the medium, and the surface of the medium when the medium is driven by the spindle motor. A head structure of an information recording / reproducing apparatus, characterized in that a fulcrum position for displacing the head following a shake is substantially the same as a surface height of the head corresponding to the medium. 2. An optical reproduction-only medium, a magnetic recording layer disposed on the surface of the medium, a spindle motor for driving these integrated media, a magnetic head contactable with the magnetic recording layer, and surface wobbling of the medium. A head structure of an information recording / reproducing apparatus, characterized by comprising a rotation fulcrum of the magnetic head for following, the height of the rotation fulcrum being substantially the same as the height of the magnetic recording layer. 3. An optical recording / reproducing medium, a low-friction material arranged on the surface of the medium, a spindle motor for driving these integrated media, and an optical recording operation which can contact the low-friction material. The magnetic head is composed of a rotation fulcrum of the magnetic head for following the surface wobbling of the medium, and the height of the rotation fulcrum is substantially the same as the height of the contact point of the low friction material and the magnetic head. A characteristic head structure of an information recording / reproducing apparatus. 4. The difference in height between the fulcrum and the other is 2.5 mm.
The head structure of the information recording / reproducing apparatus according to claim 1, wherein the head structure is within the range. 5. An information recording / reproducing apparatus characterized in that a low friction material for reducing contact friction of a magnetic head for assisting the optical recording action is arranged on at least one surface of an optical recording / reproducing medium. Medium. 6. An integrated medium in which a low friction material for reducing contact friction of a magnetic head for assisting the optical recording action is arranged on an optical recording / reproducing medium, wherein the low friction material is used as a base material of the medium. A medium for an information recording / reproducing apparatus, which is characterized by an adhesively fixed structure. 7. An integrated medium in which a low friction material for reducing contact friction of a magnetic head for assisting the optical recording operation is arranged on an optical recording / reproducing medium, wherein the low friction material is used as a base material of the medium. A medium for an information recording / reproducing apparatus, which is characterized by a vapor-deposited or sputtered structure. 8. An integrated medium in which a low friction material for reducing contact friction of a magnetic head for assisting the optical recording action is arranged on an optical recording / reproducing medium, and the low friction material is used as a base material of the medium. A medium for an information recording / reproducing apparatus, which is characterized by a structure in which coating and fixing are performed. 9. An information recording medium having a structure in which at least one surface of an optical recording / reproducing medium is in contact with a magnetic head for assisting the optical recording action, and a base material of the medium is composed of the low friction material. A medium for an information recording / reproducing apparatus, characterized in that