JP2705740B2 - Information recording / reproducing device - Google Patents

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 disc-shaped recording medium such as a cartridge for a magneto-optical disk and records and reproduces information with a movable head such as a magnetic head or an optical head. The present invention relates to an information recording / reproducing device.

[0002]

2. Description of the Related Art In recent years, disk-shaped storage elements (hereinafter simply referred to as disks) such as magnetic disks and optical disks have been actively developed as high-density, large-capacity recording elements. Above all, attention has been focused on a type of disk in which a magneto-optical disk is housed in a cartridge and can be replaced.

[0003] An information recording / reproducing apparatus for recording information on these discs and reproducing the recorded information includes a spindle motor for rotating the disc and a movable motor for recording / reproducing information on the disc. It mainly comprises a head, a moving means for moving the movable head to a desired radial position on the disk, and a loading mechanism for taking a cartridge containing the disk into and out of the information recording / reproducing apparatus.

In the case of a magneto-optical disk device, which is one of information recording / reproducing devices, overwrite technology has been actively developed, and in order to realize this overwrite, a movable magnetic head composed of a floating magnetic head is used. It has been proposed to employ a head.

The movable head can be moved to a retracted position outside the disk by the moving means. When the cartridge is replaced, the movable head is moved to the retracted position to thereby move the movable head and the disk. Prevents damage accidents due to contact.

[0006]

However, in the above-described conventional configuration, the access operation of the movable head is stopped when the cartridge is replaced, so that the movable head is not restricted by the moving means. That is, the movable head is free. For this reason, when external disturbances such as impact and vibration are applied from the outside, there is a problem that the movable head may collide with other components and be damaged.

In particular, when a linear motor is used as the moving means, the magnetic circuit becomes longer, so that the magnetic flux density is reduced. As a result, a sufficient thrust for high-speed access cannot be obtained. Have.

[0008]

According to a first aspect of the present invention, there is provided an information recording / reproducing apparatus which uses a cartridge containing a disk-shaped recording medium and includes a magnetic head , an optical head , An information recording / reproducing apparatus for recording / reproducing information by a movable head having a first moving means for moving the movable head in a radial direction of the recording medium, and a moving means disposed outside the peripheral end of the recording medium. , and a stopper is provided for limiting the movement of said movable head, during loading of the cartridge, at the end of the recording and reproducing operation of unloading or when the above information,
The first moving means is a stopper for the movable head.
A thrust is applied in a direction in which the movable head is disposed, and the movable head is pressed against a stopper by the thrust to restrain the movable head.

According to a second aspect of the present invention, there is provided an information recording / reproducing apparatus which uses a cartridge containing a disk-shaped recording medium and a movable head having a magnetic head and an optical head. in the information recording and reproducing apparatus for recording and reproducing information, the recording medium of the above movable head
Moving the movable head to a desired track of a recording medium during recording and reproduction of information while unloading the cartridge.
Time or at the end of the information recording / reproducing operation, the movable head
A first moving means for moving the de to the standby position on the recording medium, the first moving means consist separate driving system, when loading of the cartridge, the recording and reproducing operation of unloading or when Additional Information And a second moving means for moving the movable head between a retracted position outside the peripheral end of the recording medium and not interfering with the cartridge and the standby position at the end of Is provided.

An information recording / reproducing apparatus according to a third aspect of the present invention.
In order to solve the above problems, a disk-shaped recording medium
Use the magnetic head and optical head
Information for recording and reproducing information with a movable head equipped with a
Loading of cartridges in an information recording / reproducing device
At the time of unloading or recording and playback of the above information
At the end of the operation, the above movable head interferes with the cartridge
The feed mechanism that is located at the retreat position
To restrict the movable head from moving in the radial direction.
And a restraining means.

[0011]

According to the first aspect of the present invention, there is provided an information recording / reproducing apparatus which uses a cartridge containing a disk-shaped recording medium and records / reproduces information by a movable head having a magnetic head and an optical head. First moving means for moving the movable head of the recording medium in the radial direction of the recording medium;
A stopper is provided outside the peripheral end and restricts the movement of the movable head.When the cartridge is loaded, unloaded, or at the end of the information recording / reproducing operation, 1 means of transportation
There is a stopper for the movable head
The movable head collides with other parts even when external disturbances such as shocks or vibrations are applied when replacing the cartridge, because the movable head is pressed against the stopper and constrained by the thrust. No longer. This can prevent the movable head and the cartridge from being damaged.

According to the second aspect, using the cartridge containing a disc-shaped recording medium, an information recording and reproducing apparatus for recording and reproducing information by a movable head having a magnetic head and the optical head, the Record the movable head of
By moving the medium in the radial direction of the medium, the movable head is moved to a desired track of the recording medium during recording and reproduction of information, while the unloading of the cartridge is performed.
At the end of recording or playback of information.
A first moving means for moving the head to a standby position on the recording medium, and a separate drive system separate from the first moving means , for loading or unloading the cartridge or for recording and reproducing the information ; At the end of the operation, the movable head is moved out of the peripheral end portion of the recording medium and between the retracted position that does not interfere with the cartridge and the standby position.
Since the second moving means for moving is provided between, it is possible to selectively use the first and second moving means in accordance with the moving purpose of the movable head. Thus, high-speed access is possible even when a linear motor is used as the first moving means.

According to the third aspect of the present invention , a disk-shaped recording medium is provided.
Using a cartridge containing the body, magnetic head and optical
The recording and reproduction of information is performed by a movable head equipped with a head.
In an information recording / reproducing device,
Recording, unloading, or recording of the above information
At the end of the raw operation, the above movable head is
A feed mechanism arranged at the evacuation position that does not interfere with the evacuation position
In the above, the movement of the movable head in the radial direction is restricted.
And a restraining means for
At the time of replacement, in the retracted position,
Movable head collides with other parts even when disturbance is applied
No longer. As a result, the movable head and cartridge
Can be prevented from being damaged.

[0014]

1 to 20 show an embodiment of the present invention.
This will be described below.

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. A recording medium).

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

The optical head 3 includes an objective lens 2 for converging laser light on a magneto-optical disk, and an actuator 1 for driving the objective lens 2 in a focusing direction. The floating magnetic head 4 is adapted to apply a magnetic field to a region on the magneto-optical disk where the laser light is converged while floating at a fixed distance from the magneto-optical disk.
Positioned.

The movable integral type head 6 has a guide shaft 61 so that it can move in the ± X direction (radial direction of the magneto-optical disk).
• supported by a linear motor 64
(First moving means) can move in the ± X direction along the guide shafts 61. The linear motor 64 includes a driving coil 62 fixed to the movable integrated head 6 and a yoke 63 fixed to the main body.
It consists of 3 mag.

On the base 26, a feeding mechanism (second moving means) for moving the movable integrated type head 6 in the ± X direction separately from the linear motor 64 when 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 includes a motor 20, a feed screw 22 arranged in the X direction, and a rotational speed of the motor 20 to reduce a driving force. It has a gear portion 21 for transmitting to the feed screw 22. The feed screw 22 is screwed to a nut provided on the projection 23a of the movable plate 23, and the movable plate 23 moves in the ± X direction by rotating the feed screw 22.

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

The feed plate 25 is engaged with a base 26. That is, the feed plate 25 to bias the + X direction with a force of F _2, is across pins 33 and base 26 are spring 32 is attached. Here, the spring constant of the spring 34 is set so that F ₁ ≫F _2.
It is set to be sufficiently larger than the spring constant of 2.

As shown in FIGS. 7 and 8, the lifting mechanism includes pins 27, 27 fixed to the feed plate 25, and pins 2
It has a U-shaped elevating lever 28 that is rotatably mounted around a rotation axis 7 ・ 27.

The lift lever 28 has a guide pin 29 for rotating the lift lever 28 around the pins 27 and 27 by moving while sliding on a guide groove 31 formed in the movable plate 23, and a movable integral type. Lock pin (restraining means) 3 for fixing the arm 5 of the head 6 to the elevating lever 28
0 is provided. Before inserting the magneto-optical disk cartridge into the magneto-optical disk drive,
Represents a state in which the flying magnetic head 4 is lifted.
Further, the movable integrated type head 6 is fixed with one end of the arm portion 5 interposed between the lock pin 30 and the contact portion 37a of the feed plate 25.

In the above-described feed mechanism and elevating mechanism, when the motor 20 is rotated forward, the movable plate 23 and the feed plate 25 move integrally in the -X direction. -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 lift lever 28 moves up along the guide groove 31, so that the lift lever 28 rotates around the pins 27 and 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 5, and the movable integrated type head 6 can be opened. Note that the movable range of the movable integrated type head 6 in the ± X direction ranges from the contact portion 37b of the elevating lever 28 to the contact portion 37a of the feed plate 25 (stopper).
Limited by The sensor 4 provided on the base 26 indicates that the protrusion 23a of the movable plate 23 has reached a predetermined position.
When 1 is detected, 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 cartridge includes a cartridge holder 9 for holding the cartridge and a moving frame 10 for moving the cartridge holder 9 in the ± X directions.
have.

On the side of the cartridge holder 9, two guide pins 14 are respectively attached to draw the cartridge into the magneto-optical disk drive and position the cartridge. And guide holes 13 for guiding the above-mentioned guide pins 14.
Are provided respectively. Note that a sensor 38 for detecting that a cartridge has been inserted is attached to the back of the bottom surface of the cartridge holder 9.

Guide pins 50... Are fixed to the side of the chassis 65.
Guide holes 66 sliding on the guide pins 50 are provided. Further, a gear portion 16 is provided on a side surface of the moving frame 10.
The racks 18 that mesh with each other (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 and 19a, 19b and 1 respectively.
9b is provided, and the movable frame 10 is pulled in the −X direction by a spring (not shown) applied between the mounting portions 19a and 19b.

As shown in FIGS. 12 to 15, a driving system for moving the moving frame 10 in the ± X direction is constituted by a loading motor 15 mounted on the upper plate 60 and a rotating speed of the motor 15 being reduced. The driving force is applied to the rack 18
· It is composed of a gear section 16 for transmitting to the 18. The moving direction of the moving frame 10 is switched by forward / reverse rotation of the motor 15.

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

Before loading the cartridge, the floating magnetic head 4 is lifted up, and the movable integrated head 6 is locked at the retracted position.

As shown in FIGS. 16 and 17, when the cartridge is inserted into the magneto-optical disk drive (at 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 (forward rotation). As a result, the racks 18, 18 meshed 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 retraction is completed (time t ₃ ), the cartridge holder 9 descends along the guide holes 11. Thus, the magneto-optical disk in the cartridge is chucked by the spindle motor 39. Thus, the cartridge holder 9 is positioned at the home 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 the predetermined position, the rotation of the motor 15 is stopped.

Subsequently, 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 (forward 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 in the −X direction, that is, toward the center of the magneto-optical disk. At this time, the movable integrated type head 6 is sandwiched between the lock pin 30 and the contact portion 37a, and is in a restrained state. Therefore, the movable integrated type head 6 is also movable plate 23
And move in the −X direction. Rotational speed of the spindle motor 39, a steady state (3600 rpm) at time t _7.

When the movable integrated head 6 is moved up and down (standby position)
In other words, when reaching the radial position for elevating and lowering (time t ₈ ), the feed plate 25 hits the pins 36 and is stopped, and only the movable plate 23 continues to move toward the center of the magneto-optical disk. . Thereby, the guide pin 29
Rises along the guide groove 31, the elevating lever 28 rotates counterclockwise around the pins 27, 27, and the floating magnetic head 4 descends onto the magneto-optical disk during the steady rotation. Thus, the flying magnetic head 4 flies without contacting the magneto-optical disk.

At the same time, the lock pin 30 that has restrained the movable integrated head 6 is disengaged from the arm 5, so that the movable integrated head 6 is placed on the magneto-optical disk in the range between the contact portions 37a and 37b. The recording track can be freely accessed. When the loading end / sensor 41 detects that the movable plate 23 has reached the predetermined position, the rotation of the motor 20 is stopped (time t ₉ ).

As described above, in the magneto-optical disk drive of this embodiment, the movable range of the movable integrated head 6 is limited between the contact portions 37a and 37b. It does not come off the magnetic disk. Thereby, breakage of the flying magnetic head 4 can be prevented.

After the positioning of the cartridge holder 9 is completed, the disc chucking sensor 40 detects that the moving frame 10 that continues to move has reached a predetermined position, and then the spindle motor 39 is started.
There is no need to start the spindle motor 39 before chucking the magneto-optical disk. This makes it less likely that the magneto-optical disk and the cartridge will be damaged. In addition, since the allowable value of the mounting position of the disk chucking sensor 40 can be increased, 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 floating above 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 type head 6 in the X direction. When the floating head elevating position sensor 42 (detection means) detects that the movable integrated head 6 has reached the elevating position (time t ₂ ′), the motor 20 rotates in the reverse direction to lift up the floating magnetic head 4. (Time t
₃ '). Then, the linear motor 64 is stopped (time t ₄ ′).

The lift-up of the flying magnetic head 4 is completed (time t ₅ ′), and after the completion of the lift-up is detected by the flying head-up sensor 51 provided on the base 26, the lift-up state is maintained. Then, the flying magnetic head 4 is retracted to the retracted position. Movable integrated head 6
When the optical head retracting / sensor 43 provided on the base 26 detects that has reached the retracted position, the rotation of the motor 20 is stopped (time t ₆ ′). Then, the rotation speed of the spindle motor 39 is reduced, and the spindle motor 39 is stopped (time t ₇ ′).

Subsequently, the motor 15 is rotated in the reverse direction (time t ₈ ′). Thus, contrary to the loading, the moving frame 10 moves in the −X direction, the chucking of the magneto-optical disk is released (time t ₉ ′), and the cartridge retreats. Loading out provided on the base 26
When the sensor 44 detects that the retraction of the cartridge is completed (time t ₁₀ ′), the motor 15 is stopped. And
The cartridge ejected from the magneto-optical disk drive is taken out (time t ₁₁ ′).

As described above, in the magneto-optical disk drive of this embodiment, it is confirmed that the movable integrated head 6 has returned to the elevating position , the motor 20 is started, and the flying magnetic head 4 is lifted up. Until the start, the movable integrated head 6 is pressed against the contact portion 37a by the linear motor 64. Thus, even if the magneto-optical disk drive is set at an angle or an impact is applied to the magneto-optical disk drive during operation, the movable integrated type head 6 can be reliably restrained by the lock pin 30.

In the magneto-optical disk drive of this embodiment, apart from the sensor 52 for detecting that the movable integrated head 6 has accessed the outermost track of the magneto-optical disk, the sensor 52 is different from the floating magnetic head 4. Flying head elevating position sensor 42 for detecting that the flying magnetic head 4 is located at a position further outside the position where the magnetic head 4 is detected and inside the protrusion of the protective film on the outer diameter side of the magneto-optical disk. Are provided on the feed plate 25. A non-contact type such as a photo interrupter or a Hall element is used as the flying head elevating position / sensor 42.
As a result, the position of the movable integrated head 6 can be detected with no load, so that accurate access control can be performed and the floating magnetic head 4 can be moved up and down at the elevating position .

When the cartridge is unloaded, the linear motor 64 and the like are controlled by, for example, a microcomputer (not shown) as shown in FIG.
Is performed according to the flowchart of FIG.

First, in step 1 (hereinafter, the steps are represented by S), when the ejecting of the cartridge is instructed while the magneto-optical disk device is operating, the linear motor 6
4 is supplied with a direct current (S2). Thus, the movable integrated type head 6 located at an unspecified position on the magneto-optical disk
Starts moving in the outer peripheral direction of the magneto-optical disk by the thrust from the linear motor 64.

After setting the time of the timer A of the microcomputer to a predetermined value (S3), the movable integrated head 6 is moved to the predetermined position (the position where the movable integrated head 6 contacts the contact portion 37a of the feed plate 25) by the floating head elevating position / sensor 42. Is checked (S4 and S5). When it is confirmed that the movable integrated type head 6 has reached a predetermined position,
The head feed motor 20 is started (S8). For example, when a photo interrupter is used as the sensor 42, a light shielding plate is attached to the movable integrated type head 6 so that when the light of the photo interrupter is blocked by the shielding plate, the photo interrupter is activated. Keep it.

On the other hand, in S5, the movable integrated type head 6
Does not reach the predetermined position, the remaining time of the timer A is checked (S6), and if it exceeds the maximum time required for the movable integrated type head 6 to reach the predetermined position, the time is over (S7). ). Then, assuming that the magneto-optical disk device has an abnormality, the ejecting operation of the cartridge is stopped. If the maximum time is not exceeded in S7, the process returns to S4, and S4 to S7 are repeated.

When the motor 20 is started in S8, the operation at the time of unloading is started. After setting the time of the timer B of the microcomputer to a predetermined value (S9), it is checked again by the sensor 42 whether the movable integrated type head 6 is at a predetermined position (S1).
0 and S11). The movable integrated head 6 is in a restrained state pressed against the contact portion 37a of the feed plate 25 by the linear motor 64. However, in the unlikely event that a disturbance such as impact is applied to the magneto-optical disk device, the movable integrated head 6 is moved If the head 6 has deviated from the predetermined position, the motor 20 is temporarily stopped (S16), the process returns to S3, and the operation is restarted from the time set by the timer A.

In step S11, when it is confirmed that the movable integrated type head 6 has not deviated from the predetermined position, the floating type magnetic head 4 is separated from the magneto-optical disk by the floating head up sensor 51, and It is checked whether or not the body head 6 is fixed between the contact portion 37a and the lock pin 30 (S12 and S1).
3). When this is confirmed, the linear motor 64 is stopped (17).

On the other hand, if the flying type magnetic head 4 is not separated from the magneto-optical disk in S13,
The remaining time of the timer B is checked (S14), and if it exceeds the maximum time required to complete the above operation, the time is over (S15). Then, assuming that the magneto-optical disk device has an abnormality, the ejecting operation of the cartridge is stopped. If the maximum time has not been exceeded in S15, the process returns to S10, and S10 to S
Repeat step 15.

When the linear motor 64 stops at S17, the movable integrated head 6 is brought into contact with the contact portion 37a and the lock pin 3
In a state where the disk is sandwiched and fixed at 0, the disk is fed by the motor 20 from the outermost peripheral position (elevation position) of the magneto-optical disk toward the retreat position. After setting the time of the timer C of the microcomputer to a predetermined value (S18),
The head retract sensor 43 checks whether the movable integrated head 6 has reached the retract position (S19 and S20). When it is confirmed that the movable integrated type head 6 has reached the retracted position, the rotation of the motor 20 is stopped (S23). Then, the operation of discharging the cartridge is executed.

On the other hand, if the movable integrated head 6 has not reached the retracted position in S20, the remaining time of the timer C is checked (S21).
If the time exceeds the maximum time required to reach the retreat position, the time is over (S22). Then, assuming that the magneto-optical disk device has an abnormality, the ejecting operation of the cartridge is stopped. If the maximum time is not exceeded in S22, the process returns to S19 and S1
9 to S22 are repeated.

In the above embodiment, a magneto-optical disk drive having a floating magnetic head 4 has been described. However, the present invention can be applied to a magneto-optical disk drive having a floating optical head. Further, the present invention can be applied to not only a magneto-optical disk drive but also an optical disk drive such as a compact disk drive and a magnetic disk drive such as a hard disk drive. Further, the present invention can be applied to an information recording / reproducing apparatus having a contact type magnetic head such as a floppy disk drive.

[0059]

According to the information recording / reproducing apparatus of the first aspect of the present invention, as described above, the movable head is provided with the radius of the recording medium.
Moving means for moving in a direction, and a peripheral end of a recording medium
And a stopper for limiting the movement of the movable head. The first movement is performed when the cartridge is loaded, unloaded, or when the information recording / reproducing operation is completed. Means above
If the stopper is arranged for the movable head of
Direction, and the movable head is pressed against the stopper by the thrust to restrain the movable head. Disappears. Thereby, there is an effect that the movable head and the cartridge can be prevented from being damaged.

According to the information recording / reproducing apparatus according to the second aspect of the present invention, as described above, the movable head is moved to the radius of the recording medium.
By moving in the direction, when the recording and reproduction of information, while moving the movable head to a desired track of the recording medium, or when unloading the cartridge
Indicates the movable head at the end of the information recording / reproduction operation.
A first moving means for moving to the standby position on the recording medium, first
Made from a different drive system and first moving means, when the loading of the cartridge, at the end of the recording and reproducing operation of unloading or when the above information, the movable head, the outer side than the peripheral edge portion of the recording medium in, and a retracted position where it does not interfere with the cartridge, since the second moving means for moving between the standby position are provided, the first and second moving means in accordance with the moving purpose of the movable head Can be used properly. Thereby, even when a linear motor is used as the first moving means, high speed access is possible.

An information recording / reproducing apparatus according to claim 3
As described above, when loading a cartridge,
At the time of loading or at the end of
The movable head does not interfere with the cartridge
A feed mechanism arranged at the retracted position, and at the retracted position,
A restraining hand that restrains the movable head from moving in the radial direction
Steps are provided so that when replacing a cartridge,
External disturbances such as shocks and vibrations
The moving head will not collide with other parts.
You. This can damage the moving head and cartridge.
The effect that it can prevent is produced.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing the entire configuration of a magneto-optical disk drive according to 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 of FIG. 1;

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

FIG. 5 is a plan view showing a schematic configuration of a feed mechanism and a lifting mechanism of a movable integrated type head provided in the magneto-optical disk drive of FIG. 1;

FIG. 6 is a side view showing a schematic configuration of a feed mechanism and a lifting mechanism of a movable integrated type head provided in the magneto-optical disk drive of FIG. 1;

FIG. 7 is a cross-sectional view of the feed mechanism and the elevating mechanism of the movable integrated type head of FIG.

8 is a cross-sectional view of the feed mechanism and the elevating mechanism of the movable integrated type head of FIG.

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;

11 is a side view of the cartridge of FIG. 10 when a front fixing frame is removed from the loading mechanism.

12 is a plan view showing a schematic configuration of a drive system of a loading mechanism of a cartridge provided on an upper plate of the magneto-optical disk drive of FIG. 1;

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

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

15 is a bottom view showing a schematic configuration of a drive system of a cartridge loading mechanism provided on an upper plate of the magneto-optical disk drive of FIG. 1;

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

FIG. 17 is an explanatory diagram showing an operation when loading a cartridge in the magneto-optical disk drive of FIG. 1;

FIG. 18 is an explanatory diagram showing an operation at the time of unloading of a 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;

20 is a flowchart showing a control procedure of a linear motor and the like at the time of unloading the cartridge shown in FIGS. 18 and 19.

[Explanation of symbols]

 Reference Signs List 3 optical head (movable head) 4 floating magnetic head (movable head) 6 movable integrated head (movable head) 20 motor (second moving means) 21 gear section (second moving means) 22 feed screw (second) 28) Lifting lever 37a Contact part (stopper) 39 Spindle motor 42 Sensor 64 Linear motor (first moving means)

 ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Masayasu Futagawa 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (56) References JP-A-1-100781 (JP, A)

Claims (3)

(57) [Claims] An information recording / reproducing apparatus for recording / reproducing information using a movable head having a magnetic head and an optical head using a cartridge containing a disk-shaped recording medium is provided. A first moving means for moving the recording medium in the radial direction;
And a stopper for restricting the movement of the movable head is provided for loading or unloading of the cartridge or recording / reproduction of the information .
At the end of the operation , the first moving means moves to the movable head.
To the direction where the stopper is located.
For example, the information recording and reproducing apparatus characterized by restraining against the movable head stopper by該推force. 2. An information recording / reproducing apparatus which uses a cartridge containing a disk-shaped recording medium and records / reproduces information by a movable head having a magnetic head and an optical head . Move in the radial direction
By moving the movable head to a desired track of a recording medium during recording and reproduction of information ,
When unloading a cartridge or recording information again
At the end of the raw operation, the movable head is placed on standby on the recording medium.
First moving means for moving to a position, first moving means,
It consists alternative drive system, upon loading of the cartridge, recording re unloading or when Additional Information
At the end of the raw operation, the movable head is moved around the recording medium.
The retreat outside the end and not interfering with the cartridge
And avoid position information recording and reproducing apparatus characterized by a second moving means for moving between the standby position is provided. 3. A cartridge containing a disk-shaped recording medium.
And a movable head equipped with a magnetic head and an optical head.
Information recording / reproducing device that records and reproduces information by
Te, during the loading of the cartridge, unloading
Time or at the end of the information recording / playback operation,
Move the movable head to the retracted position that does not interfere with the cartridge
A feed mechanism and a radial direction of the movable head at the retracted position.
And a restraining means for restraining the movement of
Information recording and reproducing device.