JPH05325379A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To prevent damage by retreating a floating type head to a safe position away from a cartridge while the head is held at a prescribed height at the time of loading or unloading the cartridge. CONSTITUTION:This magneto-optical disk drive starts a motor 20 by confirming that a moving integral type head 6 returns to R40 (lifting position). The moving integral type head 6 is held pressed to a contact part 37a by a linear motor before the floating type magnetic head 4 begins to be lifted up. As a result, the moving integral type head 6 can be surely restrained by a lock pin 30 even if the magneto-optical disk drive is set inclinedly or an impact is applied to the magneto-optical drive during the operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a replaceable cartridge containing a disk-shaped recording medium such as a magneto-optical disk cartridge, and is equipped with a floating head such as a floating magnetic head to record and reproduce information. The present invention relates to an information recording / reproducing apparatus for performing the above, and particularly to loading and unloading of the cartridge.

[0002]

2. Description of the Related Art In the field of magnetic disk devices, which are already widely used, a floating head using a magnetic material having a higher coercive force is adopted in order to improve the recording density. Further, in the field of magneto-optical disk devices, which have been actively developed in recent years and are in the stage of commercialization, a magnetic field modulation method using a flying head is also promising as a method for realizing direct overwrite. ing.

In a typical flying type head, a magnetic head and a slider which are integrally formed are supported by a suspension composed of a leaf spring or the like, and a CSS (Contact Start) is used.
andStop) has adopted an operation method. CSS
According to the method, the flying type head is floated by the lift force given by the airflow from the slider only when the disk rotates, and lands on the disk surface when the disk stands still. The flying height of the flying head is adjusted by changing the elastic force of the suspension to press the slider against the disk surface with respect to the lift force of the slider. When resin such as polycarbonate is used for the disk substrate, there is a drawback that the surface wobbling during rotation is larger than that of the glass substrate due to molding distortion etc., but the floating head follows this surface wobbling to some extent and It has the advantage that the minute flying height that can obtain the magnetic field strength can be kept substantially constant.

However, in the above conventional flying type head, C
There are problems such as wear and damage to the disk and head due to repeated SS operations, and problems such as the attraction of the flying head to the disk, which tends to occur as the smoothness of the disk surface improves.

In order to solve the above-mentioned problem of adsorption, attempts have been made to apply a special texture treatment to the disk surface or apply a lubricant, but recently, a floating head has been used as a disk. Has been studied to operate in a non-contact state (for example, (1)
An Experiment on Landing On / Off Floating Head Slider: Yasuda, Kaneko; 1989 IEICE Spring National Congress, (2) Landing on / off characteristics of spherically machined floating head slider: Yasuda, Kaneko; 1990 IEICE Spring national convention).

[0006]

However, the study of the non-contact operation of the flying type head has just started.
In particular, in a disc recording / reproducing apparatus capable of mounting and ejecting a disc, there are many problems to be solved for practical use.

The inventors of the present application, in a disk recording / reproducing apparatus capable of mounting and ejecting a disk, hold the floating head at a non-contact position when the disk is stopped, and immediately after the disk starts rotating, We are enthusiastically developing a technology to bring the surface of a spinning disk closer to the surface of the disk and make it float without contact.

An object of the present invention is to realize a disk recording / reproducing apparatus having a flying head that operates in a non-contact manner with respect to a portable disk to be mounted each time recording, reproducing, or rewriting. It is an object of the present invention to provide a technique of a loading sequence and an unloading sequence of how to load a disc into a device and how to eject the disc from the device.

[0009]

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a first aspect of the present invention uses a replaceable cartridge containing a disk-shaped recording medium and uses a floating head. Is held at a height position where the recording medium does not come into contact with the recording medium when the recording medium stops rotating, and while the recording medium is rotating, the flying head is brought close to the recording medium to levitate on the recording medium, and a spiral or concentric recording track In the information recording / reproducing apparatus for recording / reproducing information with respect to the above, while the floating head is held at the above-mentioned height position at the time of loading of the cartridge, unloading of the cartridge, or completion of use of the information recording / reproducing apparatus. It is characterized in that a first moving means for retreating to a retracted position apart from the cartridge is provided.

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a second aspect of the present invention uses a replaceable cartridge containing a disk-shaped recording medium, and uses a floating head to stop the rotation of the recording medium. Sometimes it is held at a height position where it does not come into contact with the recording medium, and while the recording medium is rotating, the flying head is brought close to the recording medium and floats on the recording medium while recording information on spiral or concentric recording tracks. In an information recording / reproducing apparatus for reproducing, at the time of loading, unloading of the above cartridge or at the end of use of the above information recording / reproducing apparatus, the retractable position separated from the cartridge while holding the floating head at the above height position. It is characterized in that it is provided with a first moving means for retracting the head and a detecting means for detecting that the flying type head has reached the retracted position. .

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a third aspect of the present invention uses a non-contact type sensor such as a photo interrupter or a Hall element as the detecting means of the second aspect. It is characterized by being.

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a fourth aspect of the present invention uses a replaceable cartridge containing a disk-shaped recording medium, and uses a floating head to stop the rotation of the recording medium. Sometimes it is held at a height position where it does not come into contact with the recording medium, and while the recording medium is rotating, the flying head is brought close to the recording medium and floats on the recording medium while recording information on spiral or concentric recording tracks. In an information recording / reproducing apparatus for reproducing, at the time of unloading of the cartridge or at the end of use of the information recording / reproducing apparatus, the flying head is located outside the outermost recording track and at the outer diameter position of the recording medium. Second moving means for retracting to the inner radial position, and a retractable position away from the cartridge while holding the floating head at the above height position. First moving means is provided, and after the floating head is retracted to the above radial position by the second moving means, it is retracted to the retracted position while being held at the above height position by the first moving means. It is characterized by

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a fifth aspect of the present invention uses a replaceable cartridge containing a disk-shaped recording medium, and uses a floating head to stop the rotation of the recording medium. Sometimes it is held at a height position where it does not come into contact with the recording medium, and while the recording medium is rotating, the flying head is brought close to the recording medium and floats on the recording medium while recording information on spiral or concentric recording tracks. In an information recording / reproducing apparatus for reproducing, at the time of unloading of the cartridge or at the end of use of the information recording / reproducing apparatus, the flying head is located outside the outermost recording track and at the outer diameter position of the recording medium. Second moving means for retracting to the inner radial position, and a retractable position away from the cartridge while holding the floating head at the above height position. The first moving means and the limiting means for limiting the movement of the floating head so that the floating head does not move further outward from the radial position are provided, and the second moving means moves the floating head to the above. After being retracted to the radial position of 1), it is retracted to the retracted position while being held at the height position by the first moving means.

In order to solve the above-mentioned problems, an information recording / reproducing apparatus according to a sixth aspect of the present invention is characterized in that a linear motor is used as the second moving means of the fifth aspect.

In order to solve the above-mentioned problems, the information recording / reproducing apparatus according to the invention of claim 7 is characterized in that a stopper of the flying head is used as the limiting means of claim 5.

In order to solve the above-mentioned problems, in the information recording / reproducing apparatus according to the invention of claim 8, a linear motor is used as the second moving means of claim 5, and the floating means is used as the limiting means. A stopper of the mold head is used, and the float type head is characterized in that it is pressed against the stopper by a linear motor until the float type head is held at the above radial position and the above height position.

[0017]

According to the first aspect of the present invention, the replaceable cartridge containing the disk-shaped recording medium is used, and the flying head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric circular recording track while a flying head is brought close to the recording medium and floating on the recording medium while the recording medium is rotating, There is provided first moving means for retracting the flying head to the retracted position away from the cartridge while holding the floating head at the height position at the time of loading, unloading, or when the use of the information recording / reproducing apparatus is finished. Therefore, when loading or unloading the cartridge or when using the information recording / reproducing device, the floating head contacts the cartridge. No. This can prevent damage to the floating head and the cartridge.

According to a second aspect of the present invention, a replaceable cartridge containing a disk-shaped recording medium is used, and the flying head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric circular recording track while a flying head is brought close to the recording medium and floating on the recording medium while the recording medium is rotating, First moving means for retracting the floating head to a retracted position away from the cartridge while holding the floating head at the height position at the time of loading, unloading, or when the use of the information recording / reproducing apparatus is finished, and the floating head Since the detection means for detecting that the flying head has reached the retracted position is provided, in addition to the operation of the above-mentioned claim 1, the floating type head reaches the retracted position. Because it can be confirmed that the can more reliably prevent damage to the flying head and the cartridge.

According to the structure of claim 3, since a non-contact type sensor such as a photo interrupter or a hall element is used as the detecting means of claim 2, in addition to the action of claim 2, It is possible to confirm that the flying head has reached the retracted position without applying a load to the flying head. As a result, the flying head can be retracted to the retracted position in a stable flying state. Therefore, contact between the flying head and the recording medium can be prevented.

According to the structure of claim 4, a replaceable cartridge containing a disk-shaped recording medium is used, and the flying head is held at a height position where it does not come into contact with the recording medium when the rotation of the recording medium is stopped. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric circular recording track while a flying head is brought close to the recording medium and floating on the recording medium while the recording medium is rotating, Second movement for retracting the flying head to a radial position outside the outermost recording track and inside the outer diameter position of the recording medium at the time of unloading or at the end of use of the information recording / reproducing apparatus. Means and first moving means for retracting the flying head to a retracted position away from the cartridge while holding the flying head at the height position, and a second moving means. Since the flying type head is retracted to the above radial position by the step and is then retracted to the retracted position while being held at the above height position by the first moving means, the floating type head is additionally provided. It is possible to stably perform the operation of retracting the head to the retracted position separated from the cartridge while holding the head at the height position.

According to a fifth aspect of the present invention, a replaceable cartridge containing a disk-shaped recording medium is used, and the flying head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric circular recording track while a flying head is brought close to the recording medium and floating on the recording medium while the recording medium is rotating, Second movement for retracting the flying head to a radial position outside the outermost recording track and inside the outer diameter position of the recording medium at the time of unloading or at the end of use of the information recording / reproducing apparatus. Means and first moving means for retracting the flying head to a retracted position away from the cartridge while holding the flying head at the height position; A limiting means is provided to limit the movement of the flying type head so that the flying type head is prevented from moving further outward from the position, and after the flying type head is retracted to the above radial position by the second moving means, the first moving means is provided. As a result, the flying head is retracted to the retracted position while being held at the height position, so that the floating head can be reliably retracted to the radial position.

According to the configuration of claim 6, the second aspect of the fifth aspect
Since a linear motor is used as the moving means of the above, in addition to the action of the above-mentioned claim 5, if the operation of causing the flying head to access a desired recording track is also performed by this linear motor, The recording / reproducing device can be simplified.

According to the structure of claim 7, since the stopper of the flying head is used as the restricting means of claim 5, the restricting means is realized by a simple structure in addition to the operation of claim 5. it can.

According to the structure of claim 8, the second of claim 5
A linear motor is used as the moving means of the above, and a stopper of the flying head is used as the limiting means, until the flying head is held at the above radial position at the above radial position, Since the floating type head is pressed against the stopper by the linear motor, the operation of retracting the floating type head to the retracted position away from the cartridge while holding the floating type head at the height position is further stabilized in addition to the effect of the above-mentioned claim 5. Can be done by

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
The explanation is based on the following.

As shown in the plan view of FIG. 1 and the side view of FIG. 2, the magneto-optical disk drive (information recording / reproducing apparatus) of the present embodiment has a thin rectangular parallelepiped shape, and a magneto-optical disk (disk-shaped). A spindle motor 39 for rotating a recording medium) is provided.

When the upper plate 60 is removed from the main body, the movable integrated head 6 appears as shown in the plan view of FIG. 3 and the side view of FIG. The movable integrated head 6 is provided on the base 26 and includes the optical head 3 and the floating magnetic head 4.
(Floating head), and an arm portion 5 connecting and fixing these.

The optical head 3 is provided with an objective lens 2 for converging laser light on the magneto-optical disk and an actuator 1 for driving the objective lens 2 in the focus direction. The levitation type magnetic head 4 can apply a magnetic field to an area on the magneto-optical disk where the laser light is converged, while flying at a constant distance from the magneto-optical disk.
It is positioned.

The movable integral head 6 has a guide shaft 61 so that it can be moved in the ± X directions (radial directions of the magneto-optical disk).
-Supported by 61, linear motor 64
By the (second moving means), it is possible to move in the ± X directions along the guide shafts 61. The linear motor 64 includes a drive coil 62, 62 fixed to the movable integrated head 6 and a yoke 63, 6 fixed to the main body.
It consists of 3 mag.

On the base 26, a feeding mechanism (first moving means) for moving the movable integral head 6 in the ± X direction separately from the linear motor 64 at the time of loading and unloading the cartridge of the magneto-optical disk. ) And an elevating mechanism for elevating the floating magnetic head 4.

As shown in the plan view of FIG. 5 and the side view of FIG. 6, the feed mechanism reduces the rotational speed of the motor 20, the feed screw 22 arranged in the X direction, and the driving speed to reduce the driving force. It has a gear portion 21 that transmits to the feed screw 22. The feed screw 22 is screwed into a nut provided on the protruding portion 23 a of the movable plate 23, and the movable plate 23 is moved in the ± X directions by rotating the feed screw 22.

The movable plate 23 is engaged with a feed plate 25 to which an elevating lever 28 (described later) is attached. That is, the movable plate 23 and the feed plate 25 have pins 3 respectively.
5 and 33 are erected, and the movable plate 23 is moved by the force of F ₁ to +
A spring 34 is attached to the pins 35 and 33 so as to urge the pin 35 and 33 in the X direction.

The feed plate 25 is engaged with the base 26. That is, the spring 32 is attached between the pin 33 and the base 26 so as to urge the feed plate 25 in the + X direction by the force of F ₂ . Here, the spring constant of the spring 34 is such that F ₁ >> F ₂
It is set sufficiently larger than the spring constant of 2.

As shown in FIGS. 7 and 8, the lifting mechanism has pins 27, 27 fixed to the feed plate 25, and a pin 2.
It has a U-shaped elevating lever 28 rotatably attached with 7 · 27 as a rotation axis.

The elevating lever 28 has a guide pin 29 for rotating the elevating lever 28 around the pins 27, 27 by sliding it in a guide groove 31 formed in the movable plate 23, and a movable integral type. A lock pin 30 for fixing the arm portion 5 of the head 6 to the elevating lever 28 is provided. Before the cartridge of the magneto-optical disk is inserted into the magneto-optical disk drive, the elevating lever 28 is in a state of lifting the floating magnetic head 4. In addition, the lock pin 30 and the contact portion 37 a of the feed plate 25 make the arm portion 5
The movable integrated head 6 is fixed with one end thereof sandwiched.

In the above-mentioned feed mechanism and lift mechanism, when the motor 20 is rotated in the normal direction, the movable plate 23 and the feed plate 25 move integrally in the -X direction. However, the feed plate 25 causes the pin 36a on the base 26 to move. -After being stopped by hitting 36b, only the movable plate 23 moves in the -X direction. As a result, the guide pin 29 of the elevating lever 28 rises along the guide groove 31, so that the elevating lever 28 rotates around the pins 27, 27, and the floating magnetic head 4 can be lowered onto the magneto-optical disk. ..

With the rotation of the elevating lever 28, the lock pin 30 moves to the upper part of the arm portion 5 and the movable integrated head 6 can be opened. The movable range of the movable integrated type head 6 in the ± X directions is limited from the contact portion 37b of the elevating lever 28 to the contact portion 37a of the feed plate 25 (limitation means, stopper). Projection 23 of movable plate 23
When the sensor 41 provided on the base 26 detects that a has reached a predetermined position, the motor 20 is stopped and the movable plate 23 is stopped.

As shown in FIGS. 9 to 11, a cartridge loading mechanism for a magneto-optical disk comprises a cartridge holder 9 for holding the cartridge and a moving frame 10 for moving the cartridge holder 9 in the ± X directions.
have.

Two guide pins 14, 14 are attached to the side surface of the cartridge holder 9 for pulling the cartridge into the magneto-optical disk drive and for positioning the cartridge, and the side surface of the fixed frame 12 is attached. Also, on the side surface of the moving frame 10, guide holes 13 ..., 11 ... For guiding the above-mentioned guide pins 14 ...
Are provided respectively. A sensor 38 for detecting the insertion of the cartridge is attached to the bottom of the cartridge holder 9.

Guide pins 50 ... Are fixed to the side surface of the chassis 65, and to the side surface of the moving frame 10.
Guide holes 66 ... Sliding on the guide pins 50 ... Are provided. Further, on the side surface of the moving frame 10, the gear portion 16
Racks 18, 18 that mesh with (described later) are fixed. The fixed frame 12 is screwed to the guide pins 50 ...

The movable frame 10 and the fixed frame 12 have spring mounting portions 19a, 19a, 19b, 1 respectively.
9b is provided, and the moving frame 10 is pulled in the −X direction by a spring (not shown) provided between the mounting portions 19a and 19b.

The drive system for moving the moving frame 10 in the ± X directions is, as shown in FIGS. 12 to 15, a loading motor 15 attached to the upper plate 60 and a rotation speed of the motor 15 to be reduced. The driving force is the rack 18
-It is composed of the gear portion 16 that is transmitted to 18. The moving direction of the moving frame 10 is switched by the forward / reverse rotation of the motor 15.

The operation of loading and unloading the cartridge in the magneto-optical disk drive will be described with reference to FIGS. 16 to 19.
It is as follows.

Before loading the cartridge, the floating magnetic head 4 is lifted up, and the movable integrated head 6 is 55 mm from the rotation center of the spindle motor 39.
Is locked at a radial position (retracted position; hereinafter, this is represented as R55).

As shown in FIGS. 16 and 17, when the cartridge is inserted into the magneto-optical disk drive (time t
₀ ), the shutter of the cartridge is opened (time t ₁ ).
When the cartridge sensor 38 attached to the cartridge holder 9 detects the insertion of the cartridge (time t ₂ ), the loading motor 15 rotates (normal rotation). As a result, the racks 18, 18 meshing with the gear portion 16 are driven in the X direction, so that the moving frame 10 moves in the X direction, and the cartridge is pulled into the magneto-optical disk drive together with the cartridge holder 9.

When the pull-in is completed (time t ₃ ), the cartridge holder 9 descends along the guide holes 11, ..., 13. As a result, the magneto-optical disk in the cartridge is chucked by the spindle motor 39. Thus, the cartridge holder 9 is positioned at the fixed position (time t ₄ ).

After the positioning is completed, the moving frame 10 continues to move. When the disk chucking sensor 40 provided on the base 26 detects that the moving frame 10 has reached a predetermined position, the rotation of the motor 15 is stopped.

Then, the spindle motor 39 is started (time t ₅ ). When the spindle motor 39 reaches a predetermined rotation speed (time t ₆ ), the motor 20 is started (normal rotation). As a result, the feed screw 22 meshed with the gear portion 21 is rotated, so that the movable plate 23 moves together with the feed plate 25 toward the −X direction, that is, toward the center of the magneto-optical disk. At this time, the movable integrated head 6 is sandwiched between the lock pin 30 and the contact portion 37a, and is in a restrained state. Therefore, the movable integrated head 6 is also movable plate 23.
And moves in the -X direction. The rotation speed of the spindle motor 39 becomes a steady state (3600 rpm) at time t ₇ .

The movable integral head 6 is moved to the R40 (elevating position,
That is, when the radial position for moving up and down is reached (time t ₈ ), the feed plate 25 hits the pins 36, 36 and is stopped, and only the movable plate 23 continues to move toward the center of the magneto-optical disk. As a result, the guide pin 29 moves up along the guide groove 31, so that the elevating lever 28 rotates in the counterclockwise direction around the pins 27, 27, and the floating magnetic head 4 is placed on the magneto-optical disk during steady rotation. To descend. In this way, the floating magnetic head 4 floats without contacting the magneto-optical disk.

At the same time, since the lock pin 30 that restrains the movable integral head 6 is disengaged from the arm portion 5, the movable integral head 6 is sandwiched between the contact portions 37a and 37b (between R21 and R40). The recording tracks on the magneto-optical disk located at are freely accessible. When the movable plate 23 reaches a predetermined position, loading is completed.
When the sensor 41 detects, the rotation of the motor 20 is stopped (time t ₉ ).

As described above, in the magneto-optical disk drive of the present embodiment, the movable range of the movable integrated head 6 is limited between R21 and R40 by the contact portions 37a and 37b. 4 does not come off from the magneto-optical disk. As a result, damage to the floating magnetic head 4 can be prevented.

Further, after the positioning of the cartridge holder 9 is completed, the spindle motor 39 is started after the disc chucking sensor 40 detects that the moving frame 10 which continues to move reaches a predetermined position.
It is not necessary to start the spindle motor 39 before chucking the magneto-optical disk. This makes it less likely that the magneto-optical disc and the cartridge will be damaged. Further, since a large allowable value for the mounting position of the disk chucking sensor 40 can be taken, the magneto-optical disk drive can be assembled efficiently.

Next, the unloading of the cartridge will be described.

As shown in FIGS. 18 and 19, before the cartridge is unloaded, the rotation speed of the magneto-optical disk is in a steady state, and the floating magnetic head 4 is levitating on the magneto-optical disk (time). t ₀ ').

When the unloading of the cartridge is instructed (time t ₁ '), first, the linear motor 64 is driven so as to move the movable integrated head 6 in the X direction. When the flying head up / down position / sensor 42 (detection means) detects that the movable integrated head 6 has reached the up / down position (time t ₂ '), the motor 20 rotates in reverse to lift up the floating magnetic head 4. Made (time t
₃ '). Then, to stop the linear motor 64 (time t ₄ ').

The lift-up of the floating magnetic head 4 is completed (time t ₅ '), and after the lift-up sensor 51 provided on the base 26 detects the completion of the lift-up, the lift-up state is maintained. Meanwhile, the flying magnetic head 4 is retracted to the position of R55. When the optical head retraction / sensor 43 provided on the base 26 detects that the movable integrated head 6 has reached the position of R55,
Stopping the rotation of the motor 20 (time t ₆ '). Then, reduce the rotation speed of the spindle motor 39,
The spindle motor 39 is stopped (time t ₇ ').

Subsequently, the motor 15 is reversely rotated (time t ₈ '). Thus, contrary to the time of loading, the movable frame 10 is moved in the -X direction, is released chucking of the magneto-optical disk (time t ₉ '), the cartridge is retracted. Loading out provided on the base 26
When the sensor 44 detects the receding completion of the cartridge (time t ₁₀ '), the motor 15 is stopped. And
Taking out the cartridge ejected from the magneto-optical disk drive (time t ₁₁ ').

As described above, in the magneto-optical disk drive of the present embodiment, it is confirmed that the movable integrated head 6 has returned to R40, the motor 20 is started, and the floating magnetic head 4 starts to be lifted up. Up to linear motor 6
The movable integral head 6 is pressed against the abutting portion 37a by means of 4. As a result, even if the magneto-optical disk drive is tilted and set, or the magneto-optical disk drive is impacted during operation, the movable integrated head 6 can be reliably held by the lock pin 30.

In the magneto-optical disk drive of this embodiment, the sensor 52 is provided separately from the sensor 52 for detecting that the movable integrated head 6 has accessed the outermost track of the magneto-optical disk. The flying head elevating position / sensor 42 for detecting the presence of the flying magnetic head 4 at a position further outside the position for detecting the position of the floating magnetic head and at a position inside the protrusion of the protective film on the outer diameter side of the magneto-optical disk. Are provided on the feed plate 25. As the flying head elevation position / sensor 42, a non-contact type such as a photo interrupter or a Hall element is adopted.
As a result, since the position of the movable integrated head 6 can be detected without a load, accurate access control can be performed and the floating magnetic head 4 can be moved up and down at R40.

Although the magneto-optical disk drive having the floating magnetic head 4 has been described in the above embodiments, the present invention can also be applied to a magneto-optical disk drive having a floating optical head. The present invention can be applied not only to the magneto-optical disk drive but also to an optical disk drive such as a compact disk drive and a magnetic disk drive such as a hard disk drive.

[0061]

As described above, in the information recording / reproducing apparatus according to the first aspect of the present invention, when the cartridge is loaded or unloaded, or when the information recording / reproducing apparatus is used up, the flying head is set to the above-mentioned height. Since the first moving means for retracting the cartridge to the retracted position away from the cartridge while being held at the above position is used, the flying head is set to the cartridge when loading or unloading the cartridge or when the information recording / reproducing apparatus is used. Lose contact with. This has the effect of preventing damage to the floating head and the cartridge.

In the information recording / reproducing apparatus according to the second aspect of the present invention, as described above, when the cartridge is loaded or unloaded, or when the use of the information recording / reproducing apparatus is finished, the floating head is moved to the above-mentioned height position. Since the first moving means for retracting the holding head to the retracted position away from the cartridge and the detecting means for detecting that the floating head has reached the retracted position are provided, the effect of claim 1 can be obtained. In addition, since it is possible to confirm that the flying head has reached the retracted position, it is possible to more reliably prevent damage to the flying head and the cartridge.

As described above, in the information recording / reproducing apparatus according to the invention of claim 3, as the detecting means of claim 2, a non-contact type sensor such as a photo interrupter or a hall element is used. In addition to the effect of claim 2,
It is possible to confirm that the flying head has reached the retracted position without applying a load to the flying head. As a result, the flying head can be retracted to the retracted position in a stable flying state. Therefore, it is possible to prevent the contact between the flying head and the recording medium.

As described above, in the information recording / reproducing apparatus according to the fourth aspect of the present invention, the flying head is placed outside the outermost recording track when the cartridge is unloaded or when the information recording / reproducing apparatus is used up. And, and
Second moving means for retracting the recording medium to a radial position inside the outer diameter position and first moving means for retracting the flying head to a retracted position apart from the cartridge while holding the flying head at the above height position. Since the flying head is retracted to the above radial position by the second moving means, the flying head is retracted to the retracted position while being held at the above height position by the first moving means. In addition to the effect of item 1,
It is possible to stably perform the operation of retracting the flying head to the retracted position away from the cartridge while holding the flying head at the height position.

As described above, in the information recording / reproducing apparatus according to the present invention, the flying head is placed outside the outermost recording track when the cartridge is unloaded or when the information recording / reproducing apparatus is used up. And, and
Second moving means for retracting to a radial position inside the outer diameter position of the recording medium, and first moving means for retracting to a retracted position away from the cartridge while holding the flying head at the above height position. A limiting means is provided for limiting the movement of the flying head so that the flying head does not move further outward from the radial position. The second moving means retracts the flying head to the radial position. After that, the first moving means retracts it to the retracted position while holding it at the height position, so that in addition to the effect of claim 4,
The flying type head can be reliably retracted to the above radial position.

As described above, the information recording / reproducing apparatus according to the invention of claim 6 is, as the second moving means of claim 5,
Since the linear motor is used, the above-mentioned claim 5
In addition to the above effect, the information recording / reproducing apparatus can be simplified if, for example, the operation of causing the flying head to access a desired recording track is also performed by this linear motor.

In the information recording / reproducing apparatus according to the seventh aspect of the present invention, as described above, since the stopper of the flying head is used as the limiting means of the fifth aspect, in addition to the effect of the fifth aspect. The effect that the limiting means can be realized with a simple configuration is achieved.

The information recording / reproducing apparatus according to the invention of claim 8 is, as described above, as the second moving means of claim 5,
A linear motor is used, and a stopper for the floating head is used as a limiting means.The floating motor is suspended by the linear motor until the radial head is held at the above radial position and the above height position. Since the head is pressed against the stopper, in addition to the effect of the above-mentioned claim 5,
It is possible to more stably perform the operation of retracting the flying head to the retracted position away from the cartridge while holding the flying head at the height position.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing the overall configuration of a magneto-optical disk drive of the present invention.

FIG. 2 is a schematic side view of the magneto-optical disk drive of FIG.

FIG. 3 is a plan view when an upper plate is removed from the magneto-optical disk drive shown in FIG.

FIG. 4 is a side view of the magneto-optical disk drive of FIG. 1 with an upper plate removed.

5 is a plan view showing a schematic configuration of a feed mechanism and a lifting mechanism of the movable integrated head provided in the magneto-optical disk drive of FIG.

6 is a side view showing a schematic configuration of a feed mechanism and a lifting mechanism of the movable integrated head provided in the magneto-optical disk drive of FIG.

7 is a cross-sectional view taken along the line AA of the feeding mechanism and the elevating mechanism of the movable integrated head shown in FIG.

8 is a cross-sectional view taken along line BB of the feeding mechanism and the elevating mechanism of the movable integrated head of FIG.

9 is a plan view showing a schematic configuration of a cartridge loading mechanism provided in the magneto-optical disk drive of FIG. 1. FIG.

10 is a side view showing a schematic configuration of a cartridge loading mechanism provided in the magneto-optical disk drive of FIG. 1. FIG.

11 is a side view of the cartridge shown in FIG. 10 with the front fixed frame removed from the loading mechanism.

FIG. 12 is a plan view showing a schematic configuration of a drive system of a cartridge loading mechanism provided on the upper plate of the magneto-optical disk drive of FIG.

FIG. 13 is a side view showing a schematic configuration of a drive system of a cartridge loading mechanism provided on the upper plate of the magneto-optical disk drive of FIG.

14 is a left side view showing a schematic configuration of a drive system of a cartridge loading mechanism provided on the upper plate of the magneto-optical disk drive of FIG. 1. FIG.

15 is a bottom view showing a schematic configuration of a drive system of a cartridge loading mechanism provided on the upper plate of the magneto-optical disk drive of FIG.

16 is an explanatory diagram showing an operation at the time of loading a cartridge in the magneto-optical disk drive of FIG. 1. FIG.

17 is an explanatory diagram showing an operation at the time of loading a cartridge in the magneto-optical disc drive of FIG. 1. FIG.

18 is an explanatory diagram showing an operation at the time of unloading of the cartridge in the magneto-optical disk drive of FIG. 1. FIG.

19 is an explanatory diagram showing an operation at the time of unloading of the cartridge in the magneto-optical disk drive of FIG. 1. FIG.

[Explanation of symbols]

 3 Optical Head 4 Floating Type Magnetic Head (Floating Type Head) 6 Movable Integrated Head 20 Motor (First Moving Means) 21 Gear Part (First Moving Means) 22 Feed Screw (First Moving Means) 28 Lifting Lever 37a Contact part (control means, stopper) 39 Spindle motor 42 Sensor (detection means) 64 Linear motor (second moving means)

Claims (8)

[Claims] 1. A replaceable cartridge containing a disk-shaped recording medium is used, a floating head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating, and the floating head floats during the rotation of the recording medium. In an information recording / reproducing apparatus for recording / reproducing information on a spiral or concentric circular recording track while moving a die head close to the recording medium and floating on the recording medium, the above-mentioned cartridge is loaded, unloaded, or When the use of the information recording / reproducing apparatus is finished, there is provided first moving means for retracting the flying head to the retracted position away from the cartridge while holding the flying head at the height position. Playback device. 2. A replaceable cartridge containing a disk-shaped recording medium is used, a floating head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating, and it floats during rotation of the recording medium. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric recording track while moving a die head close to the recording medium and floating on the recording medium, the above-mentioned cartridge loading, unloading or First moving means for retracting the floating head to a retracted position away from the cartridge while holding the floating head at the above height position when the use of the information recording / reproducing apparatus is finished;
An information recording / reproducing apparatus, characterized in that detection means is provided for detecting that the flying head has reached the retracted position. 3. The information recording / reproducing apparatus according to claim 2, wherein a non-contact type sensor such as a photo interrupter or a Hall element is used as the detecting means. 4. A replaceable cartridge containing a disk-shaped recording medium is used, a floating head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating, and it floats during rotation of the recording medium. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric recording track while moving a die head close to the recording medium and floating on the recording medium, the above-mentioned information is recorded when the cartridge is unloaded or the information is reproduced. When the use of the recording / reproducing apparatus is finished, the flying head is retracted to a radial position outside the outermost recording track and inside the outer diameter position of the recording medium, and the flying head. First moving means for retracting to the retracted position away from the cartridge while being held at the above height position is provided, and the floating head is moved by the second moving means. An information recording / reproducing apparatus, characterized in that, after being retracted to the above radial position, it is retracted to the retracted position while being held at the above height position by the first moving means. 5. A replaceable cartridge containing a disk-shaped recording medium is used, a floating head is held at a height position where it does not come into contact with the recording medium when the recording medium stops rotating, and it floats during rotation of the recording medium. In an information recording / reproducing apparatus for recording / reproducing information on / from a spiral or concentric recording track while moving a die head close to the recording medium and floating on the recording medium, the above-mentioned information is recorded when the cartridge is unloaded or the information is reproduced. When the use of the recording / reproducing apparatus is finished, the flying head is retracted to a radial position outside the outermost recording track and inside the outer diameter position of the recording medium, and the flying head. First moving means for retracting to a retracted position away from the cartridge while holding at the above height position, and the floating head move further outward from the above radial position. In order to prevent the floating type head from moving, a limiting means is provided to limit the movement of the floating type head. The second moving means retracts the floating type head to the radial position, and then the first moving means moves it to the height position. An information recording / reproducing apparatus characterized in that the information recording / reproducing apparatus is retreated to a retracted position while being held. 6. The information recording / reproducing apparatus according to claim 5, wherein a linear motor is used as the second moving means. 7. The information recording / reproducing apparatus according to claim 5, wherein a stopper of the flying head is used as the limiting means. 8. A linear motor is used as the second moving means, and a stopper of the flying head is used as the limiting means. The flying head is positioned at the above radial position and at the above height position. 6. The information recording / reproducing apparatus according to claim 5, wherein the flying head is pressed against the stopper by the linear motor until it is held at.