JP3348005B2 - Magneto-optical disk drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magneto-optical disk drive having a magnetic field applying means for magneto-optically recording and reproducing information.

[0002]

2. Description of the Related Art An optical disk apparatus capable of reading and writing information recorded on disk-shaped recording media such as CDs, CD-ROMs and magneto-optical disks has a large storage capacity. In general, it is widely used because of its quick access to necessary information. Furthermore, MDs (mini-discs) having a small disk diameter and containing a disk in a cartridge have recently become particularly popular as a medium that can replace conventional CDs and cassette tapes because of their easy handling.

In a personal computer (personal computer) in which a magneto-optical disk device is incorporated as an external information recording / reproducing device, a portable notebook type has been attracting attention. Things are being actively developed. Therefore, even in a magneto-optical disk device in which information can be rewritten,
The demand for a thinner device has been further increased.

The main components of the magneto-optical disk drive include a loading mechanism for transporting a cartridge containing a recording medium to a predetermined position for recording and reproducing information with an optical pickup, and a medium mounted thereon. A spindle motor that rotates at a predetermined number of revolutions, an optical pickup that irradiates a medium with laser light to record and reproduce information, a magnetic field applying unit that applies an auxiliary magnetic field to a laser light condensing position of the medium, and the optical pickup as a medium. There is an optical pickup feed mechanism for performing tracking control to a predetermined position in the radial direction of the optical pickup.

The magnetic field applying means, for example, in the case of an MD device, has a magnetic head portion made of a resinous slider member having a core portion wound with a coil. The magnetic head is attached to the tip of a suspension member having an elastic portion, and is configured to slide on a rotating disk. The suspension member is fixed to a support arm extending integrally from the optical pickup, so that the suspension member can move in the radial direction of the disk integrally with the optical pickup.

Further, the magnetic head portion is moved upward by the magnetic head elevating mechanism from the sliding state with the disk to the direction above the disk, that is, in the direction in which the distance between the core portion and the disk surface increases, and further to the position above the cartridge. It is possible to be kept in a state where it is moved to and escaped.

When the cartridge is inserted into the magneto-optical disk drive, the loading mechanism moves the cartridge held by the cartridge holder in the horizontal direction toward the inside of the apparatus. At this time, the magnetic head unit is held above the cartridge by the magnetic head lifting / lowering mechanism so as not to come into contact with the cartridge that is pulled in.

Then, after the chucked portion of the magneto-optical disk is conveyed directly above the chucking portion of the spindle motor by the loading mechanism, the cartridge is lowered in a direction approaching the spindle motor. A cartridge positioning pin is mounted on the main chassis on which the spindle motor and the optical pickup are mounted, and the cartridge is positioned to a predetermined position by the positioning pin.

A center hub, which is a magnetic material, is attached to the magneto-optical disk, while a disk chucking magnet is fixed near the chucking portion of the spindle motor. The optical disk is held on the chucking surface of the spindle motor by this magnetic attraction. At this time, the magnetic head portion held above the cartridge is lowered onto the disk surface by the above-mentioned magnetic head lifting / lowering mechanism.

[0010]

In the above-described magneto-optical disk drive, it is necessary to move the cartridge up and down with respect to the spindle motor fixed to the main chassis. Space is required in the device. The size of the cartridge is one size larger than the magneto-optical disk contained therein. For example, in the case of MD, the outer diameter of the cartridge is 68 × 72 mm for a disk diameter of 64 mm. For this reason,
Very large areas are required for cartridge loading.

In addition, as described above, the magnetic head section is designed to escape above the cartridge so that the magnetic head section does not come into contact with the cartridge during loading of the cartridge. Thus, there is a problem that it is difficult to reduce the size and thickness of the apparatus main body.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a magneto-optical disk drive capable of reducing the thickness of the drive.

[0013]

According to a first aspect of the present invention, there is provided a magneto-optical disk apparatus which moves in a moving area of the apparatus and mounts a disk in a cartridge disposed at a recording / reproducing position. An optical pickup that irradiates a light beam to detect reflected light from the disk, an optical pickup guide member that guides the optical pickup in a radial direction of the disk, and a motor that rotates the disk; In a magneto-optical disk drive for loading to a recording / reproducing position and unloading the cartridge from the recording / reproducing position to the outside of the apparatus, the first motor member moves in the direction of the loaded disk; And the first space adjacent to the position of the first motor member before moving in the disk direction. Member is moved between the second space can after having moved in the direction of the disc at the second space first
A second motor member coupled to the motor member, wherein the second motor member is guided by the optical pickup guide member during the movement.

With the above arrangement, when the disk is loaded, the first motor member moves in the direction of the disk, and the second motor member moves to the second space formed there.
The disk is rotated by coupling with the first motor member. The direction of this movement can be parallel to the disk surface. Conversely, at the time of unloading, the second motor member is moved to the first space, and the first motor member is moved to the second space. Therefore, it is possible to divide a thick motor into a thin range. Therefore, the thickness of the magneto-optical disk device can be reduced.

As described above, the movement of the second motor member is guided by the member that guides the optical pickup. Therefore, there is no need to provide a guide mechanism dedicated to the second motor member. Therefore, it is possible to reduce the size of the device and suppress an increase in manufacturing cost.

Further, the relative position between the first motor member and the optical pickup is usually determined with high accuracy. Then, as described above, the guide for moving the second motor member is
Since it is done with a member that guides the optical pickup,
The relative position between the second motor member and the optical pickup is also accurately positioned. Therefore, the relative position between the first and second motor members can be accurately determined. Therefore, stable recording and reproduction can be performed.

According to a second aspect of the present invention, there is provided a magneto-optical disk device, which moves in a moving area in the device and irradiates a disk in a cartridge disposed at a recording / reproducing position with a light beam to detect reflected light from the disk. An optical pickup that guides the optical pickup in a radial direction of the disk, a magnetic field applying unit that applies a magnetic field to the disk when information is recorded, and a motor that rotates the disk. A magneto-optical disk drive for loading the disc to the recording / reproducing position and unloading the cartridge from the recording / reproducing position to the outside of the apparatus, wherein the motor moves in the direction of the loaded disc. Member and a first motor member adjacent to the position of the first motor member before moving in the disk direction. A second motor member that moves between the space and a second space that can be traced by the movement of the first motor member in the direction of the disk and couples with the first motor member in the second space; Means can be separated / coupled to the optical pickup, and when loading and unloading the cartridge, the magnetic field applying means is separated from the optical pickup so as to be inside the apparatus and outside the movement area of the cartridge. Switching means for retreating the magnetic field applying means to the optical pickup at the time of recording to the disc in the cartridge, and moving the second motor member to the second space during recording on the disc in the cartridge; Controlling the second motor member and the switching means so as to simultaneously start the coupling of the magnetic field applying means to the optical pickup by the means. It is characterized by having a that control means.

With the above arrangement, when the disk is loaded, the first motor member moves in the direction of the disk, and the second motor member moves to the second space formed there.
The disk is rotated by coupling with the first motor member. The direction of this movement can be parallel to the disk surface. Conversely, at the time of unloading, the second motor member is moved to the first space, and the first motor member is moved to the second space. Therefore, it is possible to divide a thick motor into a thin range. Therefore, the thickness of the magneto-optical disk device can be reduced.

Further, the movement of the second motor member to the second space and the coupling of the magnetic field applying means to the optical pickup by the switching means are simultaneously started. Therefore, if the processing is performed separately, the time required for the total time can be reduced to the processing time for the longer of the two processes. Therefore, the preparation time for the recording operation on the loaded disk can be reduced. Therefore, the recording operation can be started quickly.

According to a third aspect of the present invention, there is provided a magneto-optical disk device which moves in a moving area of the device and irradiates a light beam on a disk in a cartridge disposed at a recording / reproducing position to detect reflected light from the disk. Optical pickup, an optical pickup guide member for guiding the optical pickup in a disk radial direction, a magnetic field applying means for applying a magnetic field to the disk when information is recorded, a motor for rotating the disk, and the cartridge for recording the cartridge. A magneto-optical disc device having a loading means for loading the cartridge to a reproducing position and an unloading device for discharging the cartridge from the recording / reproducing position to the outside of the apparatus, wherein the motor moves in the direction of the loaded disc. 1 motor member and first motor before moving in the disk direction A first space adjacent to the position of the timber first
The second is a trace that the motor member has moved in the direction of the disk.
A second motor member which moves between the first space and the first motor member in the second space.
When loading and unloading the cartridge, the magnetic field applying means can be separated from the optical pickup and separated from the optical pickup so that the magnetic field applying means can be separated from the optical pickup by a predetermined amount outside the movement area of the cartridge. A switching means for retracting to the retracted position and coupling the magnetic field applying means to the optical pickup during recording on the disk in the cartridge; moving the second motor member and applying the magnetic field applying means by the switching means; Is performed by the same drive source.

According to the above arrangement, when the disk is loaded, the first motor member moves in the direction of the disk, and the second motor member moves to the second space formed there.
The disk is rotated by coupling with the first motor member. The direction of this movement can be parallel to the disk surface. Conversely, at the time of unloading, the second motor member is moved to the first space, and the first motor member is moved to the second space. Therefore, it is possible to divide a thick motor into a thin range. Therefore, the thickness of the magneto-optical disk device can be reduced.

Further, the second motor member and the magnetic field applying means are moved by the same driving source. Therefore, since there is no need to provide a separate driving source, an increase in manufacturing cost can be suppressed.

Further, since the movement is performed by the same drive source, both movements are started simultaneously. For this reason, if the processing is performed separately, the time required for the total processing is reduced to the processing time for the longer processing time. Therefore,
Preparation time for a recording operation on a loaded disc can be reduced. Therefore, the recording operation can be started quickly.

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the magneto-optical disk drive further includes: moving the second motor member;
Moving the magnetic field applying means by the switching means,
It is characterized in that it is performed by using the above loading means.

With the above arrangement, the magnetic applying means is separated from the optical pickup and moved to the retracted position by using the loading means, for example, a loading motor. Conversely, the loading means is used, and the magnetic applying means returns from the retracted position and couples with the optical pickup. Further, the second motor member moves in the first and second spaces by the loading means. Therefore, the retreat operation / retreat release operation of the magnetic field applying means and the movement of the second motor member can be performed without newly providing a dedicated driving means such as a motor. Therefore, in addition to the configuration of claim 3, inexpensively,
A moving mechanism for the second motor member and a retracting mechanism for the magnetic field applying means can be configured.

A magneto-optical disk drive according to a fifth aspect of the present invention further comprises, in addition to the configuration of the third aspect, a separation / contact means for changing a distance between the disk facing surface of the magnetic field applying means and the disk surface, and The movement of the motor member and the movement of the magnetic field applying means by the switching means are performed by using the separating means.

With the above arrangement, the magnetism applying means is separated from the optical pickup and moves to the retracted position by using the separation / contact means, for example, a lifting motor. Conversely, by using the separation / contact means, the magnetic application means returns from the retracted position and is coupled to the optical pickup. Further, the second motor member moves in the first and second spaces by the separation / contact means. Therefore, the retreat operation / retreat release operation of the magnetic field applying means and the movement of the second motor member can be performed without newly providing a dedicated driving means such as a motor. Therefore, in addition to the configuration of the third aspect, the moving mechanism of the second motor member and the retracting mechanism of the magnetic field applying unit can be configured at low cost.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Embodiment 1] An embodiment of the present invention will be described with reference to FIGS.
It is as follows. FIG. 1 shows a configuration example of a main part of the magneto-optical disk device according to the present embodiment. In the following,
In each embodiment, the term “device” simply refers to a magneto-optical disk device unless otherwise specified. A pair of guide members (optical pickup guide members) 3.3 are fixed to the main chassis 1, and the optical pickup 4 can be moved in the radial direction of a disk (not shown) via the guide members 3.3. And performs a tracking operation by being connected to a feed mechanism (not shown).

The spindle motor 2 for rotating and driving a disk as a recording medium is divided into a first motor member 40 and a second motor member 41. First motor member 40
Is composed of a bearing support plate 43, a turntable 42, a rotating shaft (not shown), a rotor magnet, a bearing, and a disc chucking magnet. Second motor member 41
Is composed of a stator coil 48 and a coil support 49 also serving as a back yoke. The first motor member 40 is connected to a lifting mechanism (not shown), and the second motor member 41 is connected to a sliding mechanism (not shown).

FIG. 3 shows a state before the cartridge is inserted. The optical pickup 4 is arranged at a position corresponding to the outer peripheral portion of the disk. The first motor member 40 which can be moved up and down is located below so as not to come into contact when the disc is inserted, and the second motor member 41 is moved in the direction parallel to the disc surface, that is, in the direction in which the thickness does not increase. By being adjacent to the motor member 40, the first motor member 4
0 are arranged side by side in parallel. The second motor member 41 is a guide member of the optical pickup 4.
Is configured to be slidable.

In general, magneto-optical disks and MDs are housed in cartridges for easy handling, which is a feature of the device. Conventionally, however, the vertical movement mechanism of the cartridges allows the movement of the main body of the apparatus by the movement space. In some cases, this may hinder the thinning of the device. Therefore, in the present embodiment, as described above, in order to realize a thin device main body,
The spindle motor 2 is separated into a first motor member 40 composed of a turntable to which a rotor magnet is fixed, and a second motor member 41 having a first stator coil formed thereon. After the 40 moves in the disk direction, the second motor member 41 slides into an area (a second space) formed in the trace of the movement, and is coupled with the first motor member 40 so that the spindle motor 2 can be driven to rotate. Has become. Before the movement, the second motor member 41 is located at a position (first space) adjacent to the first motor member 40. As described above, the amount of descending of the cartridge is reduced by distributing the descending amount of the conventional cartridge into the descending amount of the cartridge and the rising amount of the spindle motor. At the same time, the spindle motor 2 is divided into an upper part and a lower part, and the lower part is arranged at a position adjacent to the upper part before ascending. . As a result, the thickness of the device can be reduced.

An outline of the above configuration will be described with reference to FIG. First, as shown in FIG.
Is horizontally inserted into the device. Here, unless otherwise specified, the horizontal direction and the vertical direction in the present invention refer to the direction when the disk 18 is arranged above the spindle motor 2, and is not necessarily a general direction. It does not always point in the direction in a general sense. For this reason, the present invention also includes, for example, a configuration in which a magneto-optical disc device is vertically elongated and a disc is set up and inserted.

Next, as shown in FIG. 3B, the cartridge 17 which has been moved to the predetermined position in the horizontal direction performs a lowering operation of moving to the spindle motor 2 side, and at the same time,
The first motor member 40 is raised in the direction of the cartridge by the function of the lifting mechanism, and as a result, the
Is chucked on the turntable. Since the first motor member 40 has moved upward, there is a space R (a second space) corresponding to the amount of elevation below the first motor member 40 in the disk chucking state.

Next, as shown in FIG. 3C, the second motor member 41 connected to the slide mechanism is moved to the lower region (space) of the first motor member 40 by the action of the slide mechanism. Slide to R). At this time, a rotor magnet (not shown) provided on the first motor member 40 and a stator coil (not shown) provided on the second motor member 41 face a predetermined position. In this state, the components of the spindle motor 2 divided into the first motor member 40 and the second motor member 41 are combined into one, and a configuration similar to that of the conventional integrated spindle motor is adopted.

As described above, when the spindle motor 2 is divided and the cartridge 17 is not inserted, the second
It is possible to reduce the thickness of the spindle motor by disposing the motor member 41 beside the first motor member 40 and raising the first motor member 40 at the time of loading and moving the second motor member 41 thereat. Therefore, the thickness of the device can be reduced.

In the above example, after the cartridge is loaded into the apparatus, the first motor member 40 is raised and the second motor member 41 is slid. A dedicated motor is provided. On the other hand, as another example,
FIG. 4 shows a configuration and operation for raising and lowering the first motor member 40 without providing a motor dedicated to the raising operation of the first motor member 40 among the two operations.

First, as shown in FIG. 3A, the cartridge 17 is inserted horizontally by a loading mechanism (not shown). The first motor member 40 is fixed to the bearing support plate 43. Guide pins 44 are fixed to the main chassis 1, and the bearing support plate 43 is movable vertically along the guide pins 44. The upper portion of each guide pin 44, that is, the main chassis 1 side has a larger diameter than the lower portion, and the lower surface thereof is a bearing support plate contact portion 44a that contacts the bearing support plate 43. A relief spring 4 is provided around each guide pin 44.
5, and presses the bearing support plate 43 downward.

Further, a rotating shaft support 46 is fixed to the main chassis 1, and a rotatable pin 47 provided below the rotating shaft support 46 is rotatably held. A cartridge abutting portion 47a is formed at one end on the right side of the elevating pin 47 in the drawing, and protrudes from the notch 1h of the main chassis 1 to the upper surface of the main chassis 1, and the other end serves as a spindle motor abutting portion 47b. It is in contact with the lower surface of the bearing support plate 43.

The cartridge contact portion 47a of the lifting pin 47
A contact portion 47c that comes into contact with the lower surface of the main chassis 1 is provided at the base of the cartridge, thereby preventing the cartridge contact portion 47a from excessively rising. The first motor member 40 is pushed down by the spring force of the relief spring 45, and its position is regulated by the contact portion 47c.

Next, as shown in FIG. 3B, the cartridge 17 is lowered by a loading mechanism (not shown). The lowering of the cartridge 17 causes the lifting pins 47 to move.
The cartridge contact portion 47a at one end is pushed down, whereby the lifting pin 47 rotates. Lifting pin 47
With the rotation of, the spindle motor contact portion 47b at the other end pushes the first motor member 40 upward. At this time, the guide pin 44 has the bearing support plate contact portion 4 as described above.
Since the first motor member 40 is provided, the first motor member 40 is positioned for upward movement.

As described above, the disk in the cartridge 17 is chucked on the turntable constituting the first motor member 40 by the downward movement of the cartridge 17 and the upward movement of the first motor member 40. King.

On the other hand, when taking out the cartridge 17,
The cartridge 17 is moved upward by a loading mechanism (not shown). The cartridge contact portion 47 a at the end of the lifting pin 47 is released from contact with the cartridge 17. The first motor member 40 is pressed down by the spring force of the relief spring 45 until the lifting pin 47 is restricted by the contact portion 47c of the main chassis 1 with the lifting pin 47. After that, the cartridge 17 is discharged to the outside of the apparatus in the horizontal direction.

According to the above configuration, the up / down movement of the first motor member 40 of the split spindle motor can be linked to the loading operation of the cartridge 17.

By the way, the guide for the sliding movement of the second motor member 41 can be performed by using a dedicated member separately. However, in the present embodiment, in each of the above examples, as described below, And another member is also used.

That is, FIG. 2 shows a state in which a cartridge (not shown) is inserted and a disc (not shown) is chucked on the turntable 42. Thus, when the second motor member 41 is slid, the magneto-optical disk device changes from the state of FIG. 1 to the state of FIG. The first motor member 40 is raised in the cartridge direction to a predetermined position by the operation of a lifting mechanism (not shown). The second motor member 41 connected to the slide mechanism is slid along the guide members 3 of the optical pickup 4 by the action of the slide mechanism in the area where the gap is formed by the rise. As a result, the spindle motor components divided into the first and second motor members are united into one, and have the same configuration as the integrated spindle motor.

As described above, in the present embodiment, the member for guiding the slide movement of the second motor member 41 and the guide member for the tracking movement of the optical pickup 4 are the same. Therefore, there is no need to separately provide a guide member dedicated to slide movement of the second motor member 41. Therefore, the device can be downsized. In addition, an increase in the number of components constituting the apparatus can be suppressed, and the apparatus configuration can be simplified, so that an increase in manufacturing cost due to an increase in the number of dedicated driving members can be prevented.

As described above, the second motor member 41
Is guided using the guide members 3 of the optical pickup 4. Here, since the relative position between the turntable 42 of the first motor member 40 and the optical pickup 4 needs to be accurately positioned, the guide members 3.3 for determining the relative position of the optical pickup 4 are required.
And the turntable 42 of the first motor member 40 are accurately positioned and arranged. Therefore, by sliding the second motor member 41 using the guide members 3, 3, the first and second motor members can always be easily and accurately positioned. Therefore, the second motor member 41 is connected to the first motor member 4.
When the slider is slid below 0, characteristics similar to those of the integrated spindle motor can be easily obtained.

[Second Embodiment] The following will describe another embodiment of the present invention with reference to FIGS. FIG. 5 shows a state before the cartridge is inserted into the apparatus. In the drawing, the white arrow indicates the direction in which the cartridge 17 is inserted. The first and second motor members 40 and 41 are separated from each other,
The second motor member 41 is disposed between the optical pickup 4 located at the outer peripheral portion of the disk and the first motor member 40, while the second motor member 41 is disposed in an area before the ascending corresponding to the center of the disk. The first motor member 40 is connected to a motor member elevating mechanism 50, while the second motor member 41 is connected to a motor member sliding mechanism (control means) 53.

The magnetic field applying means 52 having the magnetic head 6 for applying a modulating magnetic field to the disk 18 is separated from the optical pickup 4 and is disposed at a retracted position outside the moving area when the cartridge 17 is inserted. The application means 52
The magnetic field applying means is coupled to a slide mechanism (control means) 51.

In this embodiment, the magnetic field applying means 52
Is configured to be separable and connectable to the optical pickup 4, and when the cartridge 17 containing a disk is inserted into the apparatus, the cartridge 17 is moved to a predetermined position where information is recorded / reproduced by the optical pickup 4. At the time of operation and at the time of unloading operation of discharging the cartridge 17 from the apparatus, the magnetic field applying means 52 is retracted to a retracted position outside the movement area of the cartridge 17 so that the magnetic field applying means 52 does not contact the cartridge 17. Configuration. For this reason, the apparatus main body can be made thin.

FIG. 6 shows a state where the cartridge 17 has been inserted into the apparatus. When the cartridge 17 is inserted into the apparatus, the first motor member 40 is raised in the direction of the cartridge to a predetermined position by the operation of the motor member lifting / lowering mechanism 50, and the motor member slides into the space defined by the rise. Second motor member 4 connected to mechanism 53
1 is slid by the action of the motor member sliding mechanism 53. As a result, the first and second motor members 4
The spindle motor components divided into 0.41 and 41 are combined into one, and have the same configuration as the integrated spindle motor.

The magnetic field applying means 52 is slid from the retracted position in the direction of the optical pickup 4 (to the right in the drawing) by the action of the magnetic field applying means slide mechanism 51, and the magnetic field applying means 52 and the optical pickup 4 are moved. Are joined together. Thereafter, both move integrally. Therefore, the relative position between the magnetic field applying means 52 and the optical pickup 4 can be easily controlled.

By the way, in the case of the magneto-optical disk drive of this configuration, during the process from the insertion of the cartridge 17 to the recording / reproducing operation of the information by the optical pickup 4, the sliding movement of the second motor member 41 and the magnetic field applying means It is necessary to perform 52 sliding movements. Therefore, in order to start the recording / reproducing operation in a short time, it is necessary to reduce the time required for the two slide movements. Here, the time required for the sliding movement of the second motor member 41 is Δt1, and the time required for the sliding movement of the magnetic field applying means 52 is Δt2. When the magnetic field applying means 52 slides after the second motor member 41 slides, the total time Δt required for the slide movement is Δt = Δt1 + Δt2. On the other hand, by operating the slide movement at the same value timing, the total time Δt can be reduced. That is, Δt1> Δt2 for each slide movement time.
Are operated at the same timing, the total time Δt required for the slide movement is
Since t can be set to Δt1, and the time can be reduced by Δt2, the rise time of the apparatus when the cartridge 17 is inserted can be shortened.

More specifically, for example, a signal indicating that the cartridge 17 has been chucked on the turntable 42 and the first motor member 40 has finished ascending is transmitted to the magnetic field applying means slide mechanism 51 and the motor member slide mechanism. 5
3 and the drive is started at the same time by energizing the slide movement motor of each member.

[Embodiment 3] Still another embodiment of the present invention will be described below with reference to FIGS. FIG. 7 shows a configuration example of a main part of the magneto-optical disk device according to the present embodiment. The figure shows
This shows a state before the cartridge 17 is inserted.
In the drawing, the white arrow indicates the direction in which the cartridge 17 is inserted. The main chassis 1 is provided with an optical pickup 4 and a cartridge positioning pin 5 via guide members 3.

A spindle motor for rotating a disk as a recording medium is divided into two members, a first motor member 40 and a second motor member 41. The first motor member 40 includes a bearing support, a turntable, a rotating shaft, a rotor magnet, a bearing, and a disc chucking magnet (not shown). The second motor member 41 includes a stator coil (not shown) and a coil support that also serves as a back yoke. And
The first motor member 40 is connected to a lifting mechanism (not shown), and is configured on the main chassis 1. The second motor member 41 is slidable via the guide members 3.3, and a rack 41a is formed at an end thereof.

On the main chassis 1, a drive motor 16
Is fixed, and a rotating gear 1
6b are formed. The rotating gear 16b and the rack 41a are connected by connecting gears 54 and 55.

At a position adjacent to the second motor member 41 of the spindle motor, there is provided a magnetic head portion 6 made of a resin slider member having a core portion wound with a coil, and a suspension member 7 for supporting the magnetic head portion. The magnetic head unit 6 and the suspension member 7 constitute a magnetic field applying unit.

The suspension member 7 is fixed to the second support arm 8. The second support arm 8 has two guide holes 9.9. Main chassis 1
, A guide pin support plate 10 is fixed, and two second magnetic head guide pins 11 are attached to the guide pin support plate 10. Then, the guide holes 9.9 are provided in the second magnetic head guide pins 11.
Is engaged. For this reason, the second support arm 8 is
It is movable along the second magnetic head guide pins 11.

A first support arm 12 extends integrally from the optical pickup 4. This first support arm 1
2, two first magnetic head guide pins 13 are fixed. First magnetic head guide pins 13
And the second magnetic head guide pins 11 and 11 have the same shaft diameter and are coaxially arranged.

The second support arm 8 has a drive pin 1
4 is fixed. Also, on the main chassis 1,
The drive gear 15 is rotatably fixed, and a part of the drive gear 15 is formed with a cutout portion 15a that engages with the drive pin 14. The drive gear 15
Is formed with a small-diameter gear 15c. The small diameter gear 1
5c and the rotation gear 16b of the drive motor 16 are connected by a connection gear 56. The drive motor 16,
The drive gear 15 and the drive pin 14 constitute switching means.

Further, the magnetic field applying means is a disk facing surface of the magnetic field applying means, and brings the magnetic head section 6 which is a magnetic field generating section or a sliding slider section close to or in contact with the disk surface, or separates it from the disk surface. Is coupled to a magnetic field applying means elevating mechanism (not shown) for performing an elevating operation.

The operation of each component when the cartridge containing the disk is inserted into the magneto-optical disk device will be described with reference to the flowchart shown in FIG.

The second support arm 8 to which the magnetic head unit 6 is fixed is located on the second magnetic head guide pins 11 as shown in FIG. This position is for cartridge 1
7 is a retracted position outside the cartridge insertion area such that the magnetic head 6 and the cartridge 17 do not come into contact when the cartridge 7 is inserted into the magneto-optical disk device. At this time, the optical pickup 4 is controlled by an optical pickup feeding mechanism (not shown) so that the optical pickup 4 is located at the outermost position where the outermost portion of the disk is recorded / reproduced. At this optical pickup position, the first magnetic head guide pins 13 and 13 integrally formed with the optical pickup 4 are provided.
The second magnetic head guide pins 11 and 11 integrally fixed to the main chassis 1 have their ends close to each other on the same axis.

The second motor member 41 is arranged in parallel beside the first motor member 40.

The cartridge 17 is inserted (S11).
At this time, the magnetic head unit 6 is still at the retracted position. The optical pickup 4 is located on the outer periphery. The second motor member 41 is separated from the first motor member 40. FIG. 8 shows a loading state in which the cartridge 17 is inserted into the magneto-optical disk device. The cartridge 17 held by a cartridge holder (not shown)
By a loading mechanism (not shown), the disk is moved in the horizontal direction, that is, the direction included in the disk surface, toward the inside of the magneto-optical disk device (downward in the figure).

Here, when trying to reduce the thickness of the magneto-optical disk drive, the cartridge
Since the upper surface position is almost equal to the apparatus upper surface position, the magnetic head unit 6 cannot be positioned above the cartridge 17. Here, the optical pickup 4 is mounted on the disc 1
8, the second support arm 8 which has moved to the outermost peripheral portion and the magnetic head portion 6 is fixed, as shown in FIG.
The cartridge 17 is retracted to a retracted position outside the movement area of the cartridge 17 upon loading. Therefore, the cartridge 17 does not come into contact with the magnetic head 6 during the cartridge loading operation.

In the retracted position, the magnetic head 6 is held by a magnetic head elevating mechanism (not shown) so that the upper surface of the magnetic head 6 is substantially the same as the upper surface of the apparatus. In this way, it is possible to prevent the height of the device from being increased due to the protrusion of the magnetic head portion 6.

Loading is performed (S12). After the chucking portion of the disk 18 is conveyed directly above the chucking portion of the first motor member 40 by the loading operation, the cartridge 17 is lowered in a direction to approach the first motor member 40. The cartridge positioning pin 5 is mounted on the main chassis 1 to which the first motor member 40 and the optical pickup 4 are mounted as described above, and the cartridge 17 is positioned at a predetermined position by the cartridge positioning pin 5. .

In step S13, the first motor member 40 is moved upward by the action of a lifting mechanism (not shown) toward the cartridge 17 as the cartridge 17 is inserted. On the other hand, a center hub (not shown) which is a magnetic material is attached to the disk 18, and a disk chucking magnet (not shown) is provided on a turntable 42 near a chucking portion of the first motor member 40. ) Is fixed. The disk 18 is held on the chucking surface of the first motor member 40 by the magnetic attraction of the disk chucking magnet to the center hub.

[0071] The action of the cartridge 17 is lowered in the direction of the lower or first motor member 40 side, above the lowered after the cartridge 17, the height of the upper surface of the cartridge 17 during horizontal movement (in the figure, and h ₁ during that) the height of the upper surface of the descent after the cartridge 17 (FIG., between the h _2), the space Q with this transfer occurs.

The drive motor 16 is rotated to move the second support arm 8 in the direction of the first support arm 12 and to move the second motor member 41 in the direction of the first motor member 40 (S14). That is, when an electric current is applied to the drive motor 16, the above-described rotary gear 16 b formed on the rotating portion of the drive motor 16 rotates in the direction A in the figure, and the drive gear 15 is moved to the direction A in the figure via the connecting gear 56. Rotated in the direction. Then, the drive pin 14 engaged with the notch 15a formed in the drive gear 15 is moved with the rotation. The movement of the drive pin 14 causes the second support arm 8 to move to the second magnetic head guide pin 11. 1.
1 along the optical pickup 4 from the retreat position. The height of the lower surface of the magnetic head unit 6 is set so as not to come into contact with the upper surface of the cartridge 17 after being lowered. Therefore, the suspension member 7 and the magnetic head 6 fixed to the second support arm move in the space Q after the cartridge 17 has been lowered. As mentioned above, the first
Since the magnetic head guide pins 13 are coaxial with the second magnetic head guide pins 11 and their ends are close to each other, the second support arm 8
It moves from above the magnetic head guide pins 11 to the first magnetic head guide pins 13.

On the other hand, when a current is applied to the drive motor 16 as described above and the rotating gear 16b formed on the rotating portion of the drive motor 16 rotates in the direction A in the drawing, the rotating gear 16b is rotated.
The connection gear 55 is rotated in the direction A in the drawing via the connection gear 54 connected to the connection gear b. Then, the rack 41a engaged with the connection gear 55 moves in the direction B in the drawing, that is, the direction in which the second motor member 41 faces the first motor member 40. The movement of the rack 41a causes the second motor member 4
1 is a first motor member 40 along the guide members 3.
Move in the direction. Here, as described above, the first motor member 40 is moved upward above the cartridge 17 by the operation of a not-shown elevating mechanism when the cartridge 17 is inserted. Therefore, the second motor member 41 is slid in the space formed in the trace of the upward movement. In this way, the components of the spindle motor divided into the first and second motor members are combined into one, and have the same configuration as that of the integrated spindle motor.

When the second support arm 8 reaches the stop position where the magnetic head 6 is coupled to the optical pickup 4 (S15), the drive motor 16 is stopped (S16). FIG. 9 shows a state in which the magnetic head unit 6 is coupled to the optical pickup 4 in this way, and the first motor member 40 and the second motor member 41 are integrally coupled. The second support arm 8 that has moved onto the first magnetic head guide pins 13 is integrally connected to the first support arm 12. Since the movement direction of the second support arm 8 is always restricted by the first magnetic head guide pins 13, the positional relationship between the two at the time of coupling is always constant, and the auxiliary magnetic field application region and the light spot are Accurately aligned.

Next, the optical pickup 4 is moved toward the inner circumference of the disk (S17). FIG. 10 shows the magnetic head unit 6.
Shows a state where tracking control is performed integrally with the optical pickup 4. The optical pickup 4 to which the magnetic head unit 6 is integrally fixed is moved to the inner periphery of the disk by an optical pickup feeding mechanism (not shown) to start recording / reproducing of information.

A magnetic head insertion window 17a is provided on the upper surface of the cartridge 17 containing the recordable disk 18. The magnetic head unit 6 integrally connected to the optical pickup 4 is located in the magnetic head insertion window 17a,
A magnetic head lifting mechanism (not shown) approaches or comes into contact with the disk surface.

As described above, since the magnetic head unit 6 and the optical pickup 4 are integrally connected, even when the optical pickup 4 moves between the inner circumference and the outer circumference of the disk 18 under the tracking control, the magnetic head unit 6 and the optical pickup 4 are assisted. The positional relationship between the magnetic field application region and the light spot does not change at all. For this reason, there is no need for position control to maintain each positional relationship, which is essential when the magnetic head unit 6 and the optical pickup 4 are completely separated.

On the other hand, the unloading operation for taking the cartridge 17 out of the magneto-optical disk device can be realized by performing the above-described loading operation in reverse. This will be described with reference to the flowchart shown in FIG. That is, the magnetic head unit 6 is raised by a magnetic head unit lifting mechanism (not shown) to a position where the lower surface of the magnetic head unit 6 does not contact the upper surface of the cartridge 17 (S21). On the other hand, the optical pickup 4 is positioned at the outermost periphery of the disk by the optical pickup feeding mechanism (S22 to S24).

Then, the drive motor 16 is rotated in the reverse direction, and the second support arm 8 connected to the first support arm 12 via each drive gear is moved to the first magnetic head guide pin 13.
Then, the magnetic head unit 6 is moved from above to the second magnetic head guide pins 11 to hold the magnetic head unit 6 at a predetermined retracted position at the end of the second magnetic head guide pins 11. Also, the second
The motor member 41 is slid in the optical pickup 4 direction (left direction in the figure) (S25 to S27).

The cartridge 17 is lifted by driving the loading motor, and the second motor member 41 is slid in the direction of the optical pickup 4 as described above, and the first motor member 40 is moved to the area where the movement mark is formed. It is moved down by the lifting mechanism (S28). afterwards,
The cartridge 17 is moved horizontally (S29), discharged out of the apparatus (S30), and the unloading operation is completed.

In the above configuration, the magnetic head section 6 and the second motor member 41 are connected to one drive motor 16 via each connection gear. Therefore, the drive motor for sliding movement of the magnetic head unit 6 and the second motor member 4
In this configuration, compared to a configuration using two motors, ie, one slide movement drive motor, these can be driven by one motor, so that the device can be made smaller and thinner. It can be constructed at a low manufacturing cost.

Further, the magnetic head 6 and the second motor member 41 can be slid simultaneously with the rotation of the drive motor 16, so that the operation of recording and reproducing information by the optical pickup 4 from the insertion of the cartridge 17 can be performed. It is possible to shorten the rising time until reaching.

[Fourth Embodiment] The following will describe still another embodiment of the present invention with reference to FIGS. For convenience of explanation, members having the same functions as the members shown in the drawings of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

A loading operation for pulling the cartridge 17 horizontally into the apparatus and lowering the disk 18 so that the disk 18 is chucked by the spindle motor 2, and conversely, an unloading operation for discharging the cartridge 17 from the apparatus to the outside of the apparatus. The loading operation is performed as follows.

FIG. 13 is a diagram showing the mechanism for holding the cartridge 17 as viewed from the inside of the cartridge 17 when the cartridge 17 is inserted. As shown in the figure, at both ends (right end and left end in the figure) of a plate-like cartridge holder 26 for holding the cartridge 17, bent portions 26 a are provided so as to be able to hold the cartridge 17. A holder pin 27 is fixed to the bent portion 26a, and the cartridge holder 26 and the holder pin 27 are integrated.

A U-shaped fixed base plate 28 is provided on the outermost periphery that covers the cartridge holder 26, and the bent portions 28a
28a are formed. Each of the bent portions 28a is engaged with the holder pin 27 in the vertical direction.
The lifting guide groove 28b shown in FIG. A movable plate 29 is provided between the bent portions 28a of the base plate 28 and the bent portions 26a of the cartridge holder 26, and is engaged with the holder pins 27.

The above mechanism generally has a configuration as shown in FIG. FIG. 14 shows the mechanism shown in FIG. 13 viewed from the right side, and the cartridge 17 is inserted from the right side in the figure. The movable plate 29 is formed with diagonal guide grooves 29a. The guide grooves 29a engage the holder pins 27 in the respective guide grooves 29a as described above.

As shown in FIG. 14A, when the cartridge 17 (not shown) is inserted, the holder pin 27 is located above the guide grooves 29a. Since the cartridge holder 26 is integrated with the holder pin 27 as described above, the cartridge holder 26 (not shown) is also located at the upper part in the apparatus. Thereafter, the cartridge 17 is manually pushed into the cartridge holder 26 in the horizontal direction. When it is confirmed that the cartridge 17 has been pushed down to the predetermined position, the loading motor (not shown) rotates to move the movable plate 29 in the direction C in the figure, that is, in the direction opposite to the loading direction.

Since the holder pin 27 is engaged with the guide groove 29a and the elevating guide groove 28b, when the movable plate 29 moves, as shown in FIG.
7 descends vertically along the elevation guide groove 28b. Therefore, the cartridge holder 26 integrated with the holder pin 27 and the cartridge 17 in the cartridge holder 26 also descend vertically. Thus, the loading operation is completed.

In the case of the configuration shown in FIG.
In the unloading operation for discharging the cartridge 17 out of the apparatus, the loading motor (not shown) is rotated in the reverse direction to move the movable plate 29 in the state shown in FIG. 14B in the direction D in the figure, that is, in the direction opposite to the unloading. .
As a result, the holder pin 27 is raised vertically along the lifting guide groove 28b. Here, the optical pickup 4 records information on the disk 18 in the cartridge 17.
A window (not shown) is provided for reproduction, and a shutter for covering the window is provided for dust prevention. Due to the spring force of the shutter opening / closing mechanism for opening and closing the shutter, the cartridge 17 in the cartridge holder 26 is discharged out of the apparatus in the horizontal direction. However, since the structure is generally well known, a detailed description is omitted here. I do.

Next, in the present embodiment, in addition to performing the above-described loading and unloading, the retracting operation of the magnetic head unit 6 is performed by using the driving force of the loading motor for performing the above-described cartridge loading operation.・
The evacuation release operation and the sliding movement operation of the second motor member 41 are performed. The structure for that will be described. For simplification of the description, the cartridge holder 26 and the base plate 28 constituting the loading mechanism are omitted, and the description will be made in relation to the operation of the movable plate 29.

FIG. 15 shows an example of the structure of the above-mentioned apparatus, and shows a state before the cartridge 17 is inserted into the apparatus. FIG. 15C is a view of FIG. 15B viewed from below in the figure. FIG. 16 is a view of FIG. 15C viewed from the direction of the arrow in the figure.

As shown in FIG. 15 (b), a loading motor (loading means) 30 for moving the movable plate 29 is fixed on the main chassis 1, and a rotating portion at the tip of the loading motor 30 is mounted on the main chassis 1. Rotating gear 30
a is formed. Also, as shown in FIG.
At a part of the upper surface of the movable plate 29 having a U-shape, a bent portion 29b formed by cutting a U-shape and bending inward (downward in the drawing) is provided. A rack 29c is formed in the bent portion 29b, and the rack 29c is engaged with the rotary gear 30a. Therefore, by rotating the loading motor 30, the movable plate 29 is moved to the position E in FIG.
Move in the direction opposite to the loading direction.

As shown in FIG. 15B, a guide groove 29 d is provided on the upper surface of the movable plate 29. The guide groove 29d is parallel to the loading direction on the side of the movable plate 29 close to the cartridge 17, in other words, the movable plate 29
Guide groove 29g, which is a portion vacant in parallel with the moving direction of
And a guide groove 29h which is an obliquely vacant portion following that portion.

A slide plate 31 is provided on the lower surface of the movable plate 29 (in the direction toward the back in the figure). The slide plate 31 has two guide grooves 31a and 3 extending parallel to the movable plate 29 at both ends in a direction perpendicular to the movement of the movable plate 29.
1a. Here, guide pins 1a, 1a are fixed to the base 28 and are engaged with the guide grooves 31a, 31a. In this state, the guide pins 1a, 1a are in the + J direction of the guide grooves 31a, 31a in the drawing. Located at the end. For this reason, the slide plate 31 can be moved only in the + J direction in the figure from the state shown in the figure.

The slide plate 31 has one slide guide pin 31b at the center. The slide guide pin 31b is engaged with the guide groove 29d of the movable plate 29. In this state, the slide guide pin 31b is located at the end of the guide groove 29d in the direction E in the drawing, that is, the moving direction of the movable plate 29.

Further, a rack 31c is formed on the side of the end of the slide plate 31 in the direction E in the figure. Here, the connection gear 32 and the drive gear 33 are rotatably fixed on the main chassis 1. Drive gear 33
Is engaged with the drive pin 14 of the second support arm 8 to which the magnetic head unit 6 is fixed at the notch 33b, and rotates to move the drive pin 14. The loading motor 30, the slide plate 31, the connection gear 32, the drive gear 33, and the drive pin 14 constitute a switching unit. The connection gear 32 is formed with a two-stage gear of a connection large-diameter gear 32a and a connection small-diameter gear 32b, and the drive gear 33 is formed with a stepped drive small-diameter gear 33a. The gear 32a and the small driving gear 33a of the driving gear 33 are engaged. Then, the rack 31c and the connecting small diameter gear 32b are engaged.

On the other hand, a bent portion 29i is provided on a part of the movable plate 29 so as to extend downward (toward the back in the figure) from the right side surface of the main chassis 1 in the figure. Is formed with a guide groove 29j.
The guide grooves 29j are parallel to the loading direction on the side of the movable plate 29 remote from the cartridge 17, in other words, the guide grooves 29 that are vacant parallel to the moving direction of the movable plate 29.
k, and a guide groove 29m which is an obliquely vacant portion following that portion.

First motor member 40, second motor member 4
1, the arrangement of the optical pickup 4, and the magnetic head unit 6 are the same as those in FIG. Further, the second motor member 4
At one end, a slide guide pin 41b is provided,
It is engaged with the guide groove 29j.

FIG. 17 shows the positional relationship among the movable plate 29, the base plate 28, the holder pins 27 and the cartridge 17 in the present embodiment. This is slightly different from the example of FIG. An elevating guide groove 28b is provided in the base plate 28 in the vertical direction. The movable plate 29 has an inclined portion 29.
e, and a guide groove having a horizontal portion 29f subsequent thereto. A holder pin 27 fixed to a cartridge holder 26 (not shown) is engaged with these two guide grooves.

As shown in FIG. 17A, immediately after the start of insertion of the cartridge 17, the holder pin 27 is located above the inclined portion 29e of the guide groove of the movable plate 29, and the cartridge holder 26 At the top of the device. The position of a side of the movable plate 29 on the side where the guide groove is provided and parallel to the elevating guide groove 28b is F. At this time, as shown in FIG.
The optical pickup 4 is located at the outermost periphery of the disk, and the magnetic head unit 6 is located at the retracted position on the second magnetic head guide pins 11.

When the cartridge 17 is in the cartridge holder 2
6, the loading motor 30 rotates,
The movable plate 29 is moved in the direction E in FIG.

As a result, as shown in FIG. 17B, the holder pin 27 descends along the inclined portion 29e of the guide groove of the movable plate 29, and reaches the boundary between the inclined portion 29e and the horizontal portion 29f. Along with this lowering, the cartridge 17 starts lowering from this point. Further, the first motor member 40 is moved by the lifting mechanism (not shown) to the cartridge 17.
Move up in the direction. Then, the disk 18 is chucked by the spindle motor 2 to complete the loading operation. The position of the side of the movable plate 29 at this time is defined as G.

At this time, as shown in FIG. 18, the slide guide pins 31b fixed to the slide plate 31 are engaged with the guide grooves 29d on the upper surface of the movable plate 29. Is moved in the guide groove 29g opened in the same direction as above, even if the movable plate 29 moves from the position F to the position G, the slide guide pin 31b does not move in the + J direction, and the position is fixed. It has been done. Therefore, the magnetic head unit 6 connected via the driving gear 33 and the like remains held at the predetermined retracted position.

Similarly, the slide guide pin 41b fixed to the end of the second motor member 41 is engaged with the guide groove 29j of the bent portion 29i of the movable plate 29. Is moved in the same direction as the guide groove 29k, even if the movable plate 29 moves from the position F to the position G, the slide guide pin 41b does not move in the + J direction and the second motor member. The position of 41 remains fixed.

Thereafter, the loading motor 30 is further rotated to move the movable plate 29 further in the direction E.

At this time, as shown in FIG. 17C, since the holder pin 27 is engaged with the horizontal portion 29f of the guide groove of the movable plate 29, the position of the holder pin 27, that is,
The position of the loaded cartridge 17 does not change. Then, the movable plate 29 reaches the tip (the right end in the figure) of the base 28. The position of the side of the movable plate 29 at this time is H.

At this time, as shown in FIG. 19, the slide guide pins 31b fixed to the slide plate 31 and engaged with the guide grooves 29d on the upper surface of the movable plate 29 move in the moving direction of the movable plate 29 described above. When the movable plate 29 moves from the position G to the position indicated by H, the slide guide pin 31b moves in the + J direction, and thus the slide plate 31 moves in the + J direction. . Then, as described above, the connection gear 32 engaged with the rack 31c provided on the slide plate 31 rotates, and the drive gear 33 further rotates in the direction A in the figure. Drive gear 3
The drive pin 14 engaged with the notch 33b formed on the drive pin 3 is moved with its rotation, and the movement of the drive pin 14 causes the second support arm 8 to move the second magnetic head guide pin 11. 11. First magnetic head guide pin 1
It moves from the retracted position to the optical pickup 4 side along 3 ・ 13, and the first and second support arms are connected to each other.

On the other hand, the slide guide pin 41b engaged with the guide groove 29j of the bent portion 29i of the movable plate 29
Moves in the guide groove 29m inclined with respect to the moving direction of the movable plate 29, so that when the movable plate 29 moves from G to the position indicated by H, the slide guide pins 41 move.
b moves in the + J direction, so that the second motor member 41
Slides to a predetermined position below the first motor member 40 via the guide members 3.

The unloading operation for taking the cartridge 17 out of the apparatus can be realized by performing the above operation in reverse. That is, the magnetic head unit 6 is raised by a magnetic head unit lifting mechanism (not shown) to a position where the lower surface of the magnetic head unit 6 does not contact the upper surface of the cartridge 17, and the optical pickup 4 is moved by the optical pickup feeding mechanism.
It is located at the outermost periphery of the disc. Loading motor 3
When the movable plate 29 is moved from the position of H to the position of G by reversely rotating 0, the slide plate 31 moves in the -J direction. Then, the second support arm 8 connected to the first support arm 12 is moved from above the first magnetic head guide pins 13 and 13 to above the second magnetic head guide pins 11 and 11 via the connection gear 32 and the drive gear 33. To hold the magnetic head unit 6 at a predetermined retracted position at the end of the second magnetic head guide pin 11.

At the same time, the movement of the slide pin 41b in the -J direction causes the integrally formed second motor member 41 to move.
Are slid in the same direction, and the first motor member 40 is moved downward by an elevating mechanism to an area formed on the trace of the movement.

Thereafter, by moving the movable plate 29 from the position G to the position F (see FIG. 18), the holder pins 2 are moved.
7, the cartridge 17 is also raised. Then, the cartridge 17 is discharged out of the apparatus in the horizontal direction, and the unloading operation is completed.

As described above, the retracting operation, the retracting releasing operation of the magnetic field applying means, and the sliding movement operation of the second motor member 41 are performed by loading / unloading the cartridge 17 into or out of the apparatus. By using the loading motor 30 that performs the operation, the retraction motor of the magnetic head unit 6 and the second
There is no need to provide a drive motor for sliding the motor member 41, and the device can be reduced in size and thickness. In addition, it can be configured at a low manufacturing cost.

Further, since the magnetic head 6 and the second motor member 41 can be slid simultaneously with the rotation of the loading motor 30, the cartridge 1
It is possible to shorten the rise time from the insertion of the optical pickup 7 to the recording / reproducing operation of information by the optical pickup 4.

[Embodiment 5] Still another embodiment of the present invention will be described below with reference to FIGS. For convenience of explanation, members having the same functions as the members shown in the drawings of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Even in the case of a recordable magneto-optical disk, it is rare that only a recording operation is always performed.
The time for reading the recorded information is long. At the time of recording information, the surface of the magnetic head portion 6 facing the disk, that is, the magnetic field generating portion and the sliding slider portion are close to or in contact with the disk surface. When the recording of information is completed and the disk facing surface of the magnetic head unit 6 is kept close to the disk surface, the magnetic head unit 6 and the disk 18
Risk of damage due to collision with
When the disk 18 is in contact with the upper side, the load is applied to the spindle motor 2 rotating the disk 18, and the power consumed by the spindle motor 2 increases. For this reason, a method is often adopted in which the magnetic head unit 6 is brought close to or in contact with the disk surface only when recording information, and is retracted above the disk surface when recording is completed. In general, an elevating motor is used as a drive source for an elevating mechanism that performs an elevating operation that raises or lowers the position of the magnetic head unit 6.

FIG. 20 shows an operation of separating the magnetic field applying means from the optical pickup 4 and performing a retreat to a retreat position outside the movement area of the cartridge 17 or performing a coupling from the retreat position to the optical pickup 4 when performing the cartridge loading operation. An example of a configuration in which the operation of causing the second motor member 41 to slide and the operation of sliding the second motor member 41 are performed by using the lifting / lowering motor (separation means) 35 as described above is shown. Here, the cartridge 17 is located at a predetermined position in the apparatus by a loading mechanism (not shown).

An elevating arm (separating means) 34 is formed below the suspension member 7 of the magnetic head 6 located at the retracted position. The elevating arm 34 is formed from the inner peripheral side of the disk, which is the movable range of the magnetic head unit 6, to the retracted position. And the lifting arm 3
Numeral 4 contacts the suspension member 7 of the magnetic head 6 so as to lift the suspension member 7 from below, and is slidable in the longitudinal direction of the suspension member 7. The lifting arm 34 is located near the center of the suspension member 7 as shown in the figure, and from the position where the magnetic head unit 6 is lifted from the cartridge 17 as shown in FIG. Sliding movement is possible only in the direction, that is, in the direction from the magnetic head 6 to the root of the suspension member 7. The height of the lower surface of the magnetic head portion 6 is set so as not to be in contact with the upper surface of the cartridge 17 in the state shown in FIG.

The above-mentioned elevating motor 35 is fixed to the main chassis 1. Further, on the main chassis 1, a first slide plate 36 parallel to the disk surface is provided. The first slide plate 36 has four guide grooves 3
6b, 36b, 36c and 36d. Each of the two guide grooves 36b has a linear shape perpendicular to the sliding movement direction of the elevating arm 34, and two guide pins 1b 1b fixed on the main chassis 1 are engaged with them. This engagement allows the first slide plate 36 to move in the + L direction, that is, in a predetermined direction parallel to the guide grooves 36b. Incidentally, as in this case, the magnetic head unit 6 is in the retracted position and the cartridge 1
7 is higher than the upper surface of the first slide plate 3
N is the position of the end of the # 6 opposite to the + L direction. The guide groove 36c is composed of a portion parallel to the guide grooves 36b, 36b, and an oblique portion located at the end in the + L direction. Further, the guide groove 36d is formed by the guide grooves 36b and 3
6b and an oblique portion located at the end opposite to the + L direction.

Further, as shown in FIG. 21, a rack 36a is formed at the lower end of the first slide plate 36 in the figure, and the rack 36a is formed on the elevating motor 35. Engaged with the rotating gear 35a. FIG. 21 is an enlarged view of a portion of the lifting motor 35 of FIG.

As shown in FIG. 20, the main chassis 1 below the first slide plate 36 has
Guide groove 1c in the sliding direction (+ K, -K direction)
Is formed. A drive pin 34a is fixed to the right end of the lift arm 34 in the figure, and the drive pin 34a is connected to the guide groove 3 of the first slide plate 36.
6d and the guide groove 1c of the main chassis 1. On the other hand, a guide groove 34b is formed at the left end of the lift arm 34 in the sliding direction of the lift arm 34 in the drawing, and is fixed on the main chassis 1.
The guide pins 1d are engaged with the guide grooves 34b. For this reason, the movement of the lifting arm 34 is restricted only in the −K direction and the + K direction. Then, as shown in the figure, the guide pin 1d on the + K direction end side of the two is located at the + K direction end of the guide groove 34b. Therefore, from this state, the lifting arm 34 can move only in the + K direction.

On the other hand, the second slide plate 36
A slide plate 37 is provided. The second slide plate 3
7, two guide pins 37a are fixed. The main chassis 1 has the guide pins 37a
37a, two guide grooves 1 in the -K and + K directions.
e · 1e is formed. The two drive pins 37a
One of the 37a (the lower side in the figure) is engaged with only one guide groove 1e of the main chassis 1. The other (upper side in the figure) includes a guide groove 36c of the first slide plate 36 and the other guide groove 1e of the main chassis 1.
And both are engaged. And, as shown in FIG.
The two guide pins 37a are connected to the guide grooves 1e1.
e is located at the end in the + K direction.
Therefore, from this state, the second slide plate 37 is movable only in the −K direction.

Further, a rack 37b is formed on the left side of the second slide plate 37 in the figure. Here, the connection gear 32 and the drive gear 33 are rotatably fixed on the main chassis 1. Connecting gear 32
Is formed with a two-stage gear of a connection large-diameter gear 32a and a connection small-diameter gear 32b. The drive gear 33 is formed with a stepped small-diameter drive gear 33a. The drive small diameter gear 3
3a and the connecting large-diameter gear 32a, the connecting small-diameter gear 32b and the second
The racks 37b of the slide plates are engaged with each other.
The drive pin 14 of the second support arm 8 to which the magnetic head unit 6 is fixed is engaged with the drive gear 33. The lifting motor 35, the first slide plate 36, the second slide plate 3
7, connecting gear 32, drive gear 33, and drive pin 14
The switching means is constituted by the above.

Further, on the lower surface of the main chassis 1, a third
A slide plate 57 is provided. The third slide plate 5
7, three guide grooves 57a, 57a, 57b are formed. The two guide grooves 57a, 57a are both linear in a direction perpendicular to the sliding movement direction of the first slide plate 36, and the two guide pins 1f, 1f fixed on the main chassis 1 engage with them. I have. By this engagement, the third slide plate 57 moves in the −K direction, that is, the guide groove 3.
It is movable in a predetermined direction perpendicular to 6b / 36b. Further, the guide groove 57b is provided with the guide grooves 36b.
A parallel portion 57e, which is a portion parallel to the above, and an inclined portion 57d, which is an oblique portion located at the end in the + K direction.

A drive pin 36e is fixed to the first slide plate 36. The drive pin 36e is engaged with the guide groove 1g of the main chassis 1 and the guide groove 57b of the third slide plate 57. I agree.

A connecting gear 58 is rotatably fixed to the lower surface of the main chassis 1.
Is formed with a two-stage gear of a large-diameter gear 58a and a small-diameter gear 58b, and the small-diameter gear 58b and the rack 57c of the third slide plate 57 are engaged.

First motor member 40, second motor member 4
1, the arrangement of the optical pickup 4, and the magnetic head unit 6 are the same as those in FIG. Further, the second motor member 4
1 is formed with a rack 41a at the end thereof.
8 is engaged with the large-diameter gear 58a.

The magnetic head unit 6 having the above configuration
And the sliding movement of the second motor member 41 will be described. When the lifting / lowering motor 35 is rotated in the direction M (counterclockwise) in the drawing, the end of the first slide plate 36 engaged with the motor 35 slides in the + L direction.

Then, as shown in FIG. 22, the first slide plate 36 is connected to the drive pin 34 fixed to the lift arm 34.
a moves to a position where it reaches the bent portion of the guide groove 36d on the first slide plate 36. At this time, the guide groove 36d of the first slide plate 36 engaged with the drive pin 34a fixed to the lift arm 34
Since it is the same direction as the sliding direction of the slide plate 36,
The drive pin 34a of the lifting arm 34 does not move in the + K direction, and its position does not change. Therefore, the lifting arm 3
The magnetic head 6 from which the suspension member 7 has been lifted at 4 keeps its state. Note that, as in this case, the position of the end of the first slide plate 36 opposite to the + L direction when the magnetic head unit 6 has been released from the retracted position and is at a position higher than the upper surface of the cartridge 17 is denoted by O. And

On the other hand, as described above, the state shown in FIG.
During the transition to the state 2, the guide pin 37a fixed to the second slide plate 37, which is engaged with the guide groove 36c of the first slide plate 36, engages with the oblique portion of the guide groove 36c. Move in the -K direction along the inclination. As a result, since the second slide plate 37 moves in the −K direction, the rack 37 formed at the end thereof is moved.
b, the connection gear 32 engaged therewith rotates, and
The drive gear 33 rotates in the A direction. The drive pin 14 engaged with the notch 33b formed in the drive gear 33
Is moved with the rotation, and the drive pin 14 is moved.
The second support arm 8 is moved in the optical pickup direction along the first and second magnetic head guide pins 13 and 11 by the movement of the first support arm 8 and the first support arm 12 and the second support arm 8 are connected. At this time, since the magnetic head unit 6 is kept lifted by the lifting arm 34 to a position where it does not contact the surface of the cartridge 17, the magnetic head unit 6 does not come into contact with the cartridge 17 when moving from the retracted position.

On the other hand, the first slide plate 57 engages with the inclined portion 57d of the guide groove 57b provided on the third slide plate 57.
When the drive pin 36e of the slide plate 36 moves in the + L direction, the inclined portion 57d is pushed by the drive pin 36e and moves in the + K direction, and the third slide plate 57 moves in the + K direction along the inclined portion 57d. Moving. By the movement of the third slide plate 57, the connection gear 58 engaged with the rack 57c rotates clockwise in the drawing, and the rack 41a of the second motor member 41 engaged with the connection gear 58 is moved. -Move in the L direction.

By the movement of the rack 41a, the second motor member 41 slides along the guide member (not shown) in the direction of the first motor member 40 (to the right in the figure). The first motor member 40 has already been moved upward by the operation of a not-shown elevating mechanism when the cartridge 17 is inserted. Second motor member 4
1 is slid. In this way, the first and second
The spindle motor components divided into the above-described motor members are combined into one, and have the same configuration as the integrated spindle motor.

FIG. 23 shows a state in which the magnetic head unit 6 is positioned at the inner peripheral portion of the disk in a state where it is integrally connected to the optical pickup 4. Here, the first slide plate 36 is at the same position O as in FIG.
Is still lifted upward by the lifting arm 34. If information is reproduced by the optical pickup 4 in this state, the risk of collision between the magnetic head unit 6 and the disk 18 and the load on the spindle motor can be reduced by maintaining the contact state.

At the time of recording / erasing information, the magnetic head 6
Must be lowered toward the disk. As shown in FIG. 24, the elevating motor 35 is further rotated, and the first slide plate 36 is further moved. Then, the lifting arm 3
The drive pin 34a fixed to 4 is moved in the + K direction along the inclination of the guide groove 36d of the first slide plate. As a result, when the elevating arm 34 slides in the + K direction, the state in which the suspension member 7 of the magnetic head 6 has been lifted and restrained is released, and the magnetic head 6 descends toward the surface of the disk 18 due to its spring property. I do. Note that, as in this case, the position of the end of the first slide plate 36 in the direction opposite to the + L direction when the magnetic head unit 6 is released and retracted and descends toward the surface of the disk 18 is denoted by P. I do.

At this time, the guide pin 37a fixed to the second slide plate 37 is engaged with the latter half of the guide groove 36c formed in the same direction as the movement direction of the first slide plate 36. The guide pin 37a is + K
It does not move in the direction and its position remains fixed.
Therefore, the connection gear 32 and the drive gear 33 do not rotate.

Similarly, the drive pin 36e provided on the first slide plate 36 further moves in the + L direction, but the drive pin 36e of the guide groove 57b of the third slide plate 57
e, the parallel portion 57e is engaged with the drive pin 36.
Since it is formed in the same direction as the moving direction of e, the third slide plate 57 does not move in the + K direction, and its position remains fixed. Therefore, the connection gear 58 does not rotate, and the second motor member 41 does not slide.

On the other hand, the unloading operation for taking the cartridge 17 out of the apparatus can be realized by performing the above operation in reverse. That is, the lifting motor 35 is rotated in the reverse direction, and the end of the first slide plate 36 is moved from position P to position O.
By moving the magnetic head unit 6 to the position, the lower surface of the magnetic head unit 6 is raised to a position where the lower surface of the magnetic head unit 6 does not contact the upper surface of the cartridge 17. Then, the optical pickup 4 is positioned at the outermost periphery of the disk by the optical pickup feeding mechanism. By further rotating the elevating motor 35 in the reverse direction and moving the end of the first slide plate 36 from position O to position N, the second slide plate 37 slides in the + K direction, and the first support arm 12 The second combined with
The support arm 8 is moved from above the first magnetic head guide pins 13 to above the second magnetic head guide pins 11 via the connection gear 32 and the drive gear 33, and the second magnetic head guide pins 11 The magnetic head unit 6 is held at a predetermined retracted position at the end of the magnetic head unit 11.

At the same time, the end of the first slide plate 36 is moved from the position P to the position O by reversely rotating the elevating motor 35 as described above, whereby the third slide plate 57 is slid in the -K direction. To move to the second
The motor member 41 is slid in the direction of the optical pickup 4 (to the left in the drawing), and the first motor member 40 is moved down by a lifting mechanism to an area where the movement can be traced. Thereafter, the cartridge 17 is lifted and moved horizontally by the loading mechanism, and is discharged out of the apparatus.

As described above, the evacuation operation, the evacuation release operation of the magnetic field applying means, and the sliding movement operation of the second motor member 41 are performed by the elevating motor 35 which is a driving source of the elevating mechanism of the magnetic field applying means. Accordingly, it is not necessary to newly provide a retreat motor for the magnetic head unit 6 and a drive motor for sliding movement of the second motor member 41, and the device can be made smaller and thinner. In addition, it can be configured at a low manufacturing cost.

Further, since the magnetic head 6 and the second motor member 41 can be slid simultaneously with the rotation of the elevating motor 35, the information recording / reproducing operation by the optical pickup 4 from the insertion of the cartridge 17 can be performed. Can be shortened.

[0141]

As described above, in the magneto-optical disk drive according to the first aspect of the present invention, the light beam is applied to the disk in the cartridge arranged at the recording / reproducing position by moving in the moving area in the apparatus. An optical pickup for detecting reflected light from the disk, an optical pickup guide member for guiding the optical pickup in a disk radial direction, and a motor for rotating the disk, and moving the cartridge to the recording / reproducing position. A magneto-optical disk drive for performing loading and unloading for discharging the cartridge from the recording / reproducing position to the outside of the apparatus;
The first motor member moves in the direction of the loaded disk, the first space adjacent to the position of the first motor member before moving in the disk direction, and the first motor member moves in the direction of the disk. A second motor member that moves between a second space that can be traced and that is coupled to the first motor member in the second space, wherein the second motor member moves the optical pickup guide member during the movement. It is a configuration guided by.

Therefore, there is an effect that the thickness of the magneto-optical disk device can be reduced.

Further, it is possible to suppress an increase in manufacturing cost and to effect stable recording and reproduction.

The magneto-optical disk drive according to the second aspect of the present invention detects the reflected light from the disk by irradiating a light beam to the disk in the cartridge arranged at the recording / reproducing position by moving in the movement area in the apparatus. An optical pickup that guides the optical pickup in a radial direction of the disk, a magnetic field applying unit that applies a magnetic field to the disk when information is recorded, and a motor that rotates the disk. A magneto-optical disk drive for loading the disc to the recording / reproducing position and unloading the cartridge from the recording / reproducing position to the outside of the apparatus, wherein the motor moves in the direction of the loaded disc. Member and a first motor member adjacent to the position of the first motor member before moving in the disk direction. A second motor member that moves between the space and a second space that can be traced by the movement of the first motor member in the direction of the disk and couples with the first motor member in the second space; Means can be separated / coupled to the optical pickup, and when loading and unloading the cartridge, the magnetic field applying means is separated from the optical pickup so as to be inside the apparatus and outside the movement area of the cartridge. Switching means for retreating the magnetic field applying means to the optical pickup at the time of recording to the disc in the cartridge, and moving the second motor member to the second space during recording on the disc in the cartridge; Controlling the second motor member and the switching means so as to simultaneously start the coupling of the magnetic field applying means to the optical pickup by the means. A structure having a that control means.

Therefore, there is an effect that the thickness of the magneto-optical disk device can be reduced.

Further, there is an effect that the recording operation can be started quickly.

According to a third aspect of the present invention, a magneto-optical disk device moves in a moving area in the device and irradiates a light beam to a disk in a cartridge disposed at a recording / reproducing position to detect reflected light from the disk. Optical pickup, an optical pickup guide member for guiding the optical pickup in a disk radial direction, a magnetic field applying means for applying a magnetic field to the disk when information is recorded, a motor for rotating the disk, and the cartridge for recording the cartridge. A magneto-optical disc device having a loading means for loading the cartridge to a reproducing position and an unloading device for discharging the cartridge from the recording / reproducing position to the outside of the apparatus, wherein the motor moves in the direction of the loaded disc. 1 motor member and first motor before moving in the disk direction A first space adjacent to the position of the timber first
The second is a trace that the motor member has moved in the direction of the disk.
A second motor member which moves between the first space and the first motor member in the second space.
When loading and unloading the cartridge, the magnetic field applying means can be separated from the optical pickup and separated from the optical pickup so that the magnetic field applying means can be separated from the optical pickup by a predetermined amount outside the movement area of the cartridge. A switching means for retracting to the retracted position and coupling the magnetic field applying means to the optical pickup during recording on the disk in the cartridge; moving the second motor member and applying the magnetic field applying means by the switching means; Is performed by the same drive source.

Therefore, there is an effect that the thickness of the magneto-optical disk device can be reduced.

Further, there is an effect that an increase in manufacturing cost can be suppressed.

Further, the recording operation can be started quickly.

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the magneto-optical disk device further includes a movement of the second motor member,
Moving the magnetic field applying means by the switching means,
This is a configuration using the loading means.

Therefore, in addition to the effect of the configuration of claim 3, there is an effect that the moving mechanism of the second motor member and the retracting mechanism of the magnetic field applying means can be configured at low cost.

A magneto-optical disk drive according to a fifth aspect of the present invention further includes, in addition to the configuration of the third aspect, a separation / contact means for changing a distance between the disk facing surface of the magnetic field applying means and the disk surface, and The movement of the motor member and the movement of the magnetic field applying means by the switching means are performed using the separating means.

Therefore, in addition to the effect of the configuration of claim 3, there is an effect that the moving mechanism of the second motor member and the retracting mechanism of the magnetic field applying means can be configured at low cost.

[Brief description of the drawings]

FIG. 1 shows a main part of a configuration example of a magneto-optical disk device according to the present invention, wherein FIG.
(B) is a front view.

FIGS. 2A and 2B show a state when a cartridge is inserted in the magneto-optical disk device, wherein FIG. 2A is a top view and FIG. 2B is a front view.

FIGS. 3A to 3C are plan views showing a configuration of a separation type spindle motor.

FIGS. 4A and 4B are plan views showing a configuration of an example of an elevating mechanism of a first motor member.

FIG. 5 is a plan view showing a state before a cartridge is inserted in another configuration example of the magneto-optical disk device according to the present invention.

FIG. 6 is a plan view showing a state when a cartridge is inserted in the magneto-optical disk device.

FIGS. 7A and 7B show a state before inserting a cartridge in still another configuration example of the magneto-optical disk device according to the present invention, wherein FIG. 7A is a left side view, FIG. 7B is a top view, and FIG. FIG. 3D is a front view, and FIG. 4E is a front view near the first and second support arms.

8 (a) is a side view, FIG. 8 (b) is a top view, and FIG. 8 (c) is a front view near the first and second support arms. is there.

9A and 9B show a state in which a magnetic head unit and an optical pickup in the magneto-optical disk device are combined and a spindle motor is integrally combined, and FIG. 9A is a top view,
(B) is a front view near the first and second support arms.

FIGS. 10A and 10B show a state in which the magnetic head unit and the optical pickup in the magneto-optical disk device are integrally controlled, where FIG. 10A is a top view and FIG. 10B is a view near the first and second support arms. It is a front view.

FIG. 11 is a flowchart illustrating a loading operation of the cartridge.

FIG. 12 is a flowchart illustrating an unloading operation of the cartridge.

FIG. 13 is a sectional view showing a loading operation and an unloading operation in still another configuration example of the magneto-optical disk device according to the present invention.

FIGS. 14A and 14B are plan views showing a loading operation and an unloading operation.

FIGS. 15A and 15B show a state before the cartridge is inserted in the magneto-optical disk device, where FIG. 15A is a side view and FIG.
Is a top view, and (c) is a front view near the movable plate.

FIG. 16 is a plan view showing an engagement state between a rack and a rotary gear.

FIGS. 17A to 17C are plan views showing a loading operation and an unloading operation.

FIG. 18 is a plan view showing a state when a cartridge is inserted in the magneto-optical disk device.

FIG. 19 is a plan view showing a state in which the magnetic head unit and the optical pickup in the magneto-optical disk device are coupled, and the spindle motor is integrally coupled.

FIGS. 20A and 20B show a state where a cartridge is inserted in still another configuration example of the magneto-optical disk device according to the present invention, wherein FIG. 20A is a left side view, FIG. 20B is a top view, and FIG. FIG.

FIG. 21 is a plan view showing an engagement state between a rack and a rotary gear.

FIG. 22 is a plan view showing a state in which a magnetic head unit and an optical pickup in the magneto-optical disk device are coupled, and a spindle motor is integrally coupled.

FIG. 23 is a plan view showing a state in which a magnetic head unit in the magneto-optical disk device is lifted.

FIGS. 24 (a) and (b) show a state in which a magnetic head unit in a magneto-optical disk device is lowered in a medium direction, where (a) is a side view and (b) is a top view. .

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main chassis 1a Guide pin 1b Guide pin 1c Guide groove 1d Guide pin 1e Guide groove 1f Notch 1g Guide groove 1h Notch 2 Spindle motor 3 Guide member (optical pickup guide member) 4 Optical pickup 5 Cartridge positioning pin 6 Magnetic Head part (magnetic field applying means) 7 Suspension member (magnetic field applying means) 8 Second support arm 9 Guide hole 10 Guide pin support plate 11 Second magnetic head guide pin 12 First support arm 13 First magnetic head guide pin 14 Drive pin (Switching means) 15 Drive gear (Switching means) 15a Notch 15c Small diameter gear 16 Drive motor (Switching means) 16b Rotary gear 17 Cartridge 18 Disk 26 Cartridge holder 26a Bending part 27 Holder pin 28 Base plate 28a bent portion 28b lifting guide groove 29 movable plate 29a guide groove 29b bent portion 29c rack 29d guide groove 29e inclined portion 29f horizontal portion 29g guide groove 29h guide groove 29i bent portion 29j guide groove 29k guide groove 29m guide groove 30 loading Motor (loading means, switching means) 30a rotating gear 31 slide plate (switching means) 31a guide groove 31b slide guide pin 31c rack 32 connecting gear (switching means) 32a connecting large diameter gear 32b connecting small diameter gear 33 driving gear (switching means) 33a Drive small-diameter gear 33b Notch portion 34 Elevating arm (separating means) 34a Drive pin 34b Guide groove 35 Elevating motor (separating means) 35a Rotating gear 36 First slide plate (switching means) 36a Rack 36b, 36b, 36c, 36d Guide groove 36e Drive pin 37 Second slide plate (switching means) 37a Guide pin 37b Rack 40 First motor member 41 Second motor member 41a Rack 41b Slide guide pin 42 Turntable 43 Bearing support Plate 44 Guide pin 44a Bearing support plate contact portion 45 Release spring 46 Rotary shaft support 47 Elevating pin 47a Cartridge contact portion 47b Spindle motor contact portion 47c Contact portion 48 Stator coil 49 Coil support 50 Motor member lifting / lowering mechanism 51 Magnetic field Application means slide mechanism (control means) 52 Magnetic field application means 53 Motor member slide mechanism (control means) 54, 55, 56 Connecting gear 57 Third slide plate 57a, 57b Guide groove 57c Rack 57d Inclined part 7e parallel portion 58 connecting gear 58a large diameter gear 58b small diameter gear

Continuation of the front page (56) References JP-A-10-241272 (JP, A) JP-A-8-17089 (JP, A) JP-A-5-146131 (JP, A) JP-A-4-109471 (JP) , A) JP-A-62-124671 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 11/105 G11B 19/20 G11B 21/02

Claims (5)

(57) [Claims] An optical pickup for moving in a movement area of an apparatus and irradiating a light beam to a disk in a cartridge arranged at a recording / reproducing position to detect light reflected from the disk, and An optical pickup guide member for guiding the disk in a radial direction, and a motor for rotating the disk; loading for placing the cartridge at the recording / reproducing position; and unloading the cartridge from the recording / reproducing position to the outside of the apparatus. In the magneto-optical disk drive for loading, the motor includes a first motor member moving in the direction of the loaded disk, a first space adjacent to the position of the first motor member before moving in the disk direction, and a first space. The motor member moves to and from the second space where it can be traced in the direction of the disk, and in the second space A magneto-optical disk drive, comprising: a second motor member coupled to a first motor member, wherein the second motor member is guided by the optical pickup guide member during the movement. 2. An optical pickup for moving in a movement area of the apparatus and irradiating a light beam to a disk in a cartridge disposed at a recording / reproducing position to detect light reflected from the disk, and An optical pickup guide member for guiding the disk in a radial direction, a magnetic field applying means for applying a magnetic field to the disk when recording information, and a motor for rotating the disk; and disposing the cartridge at the recording / reproducing position. In a magneto-optical disk device that performs loading and unloading of ejecting the cartridge from the recording / reproducing position to the outside of the apparatus, the first motor member moves in the direction of the loaded disk; The first space adjacent to the position of the first motor member and the first motor member A second motor member that moves between a second space that can be traced in the direction and that is coupled to the first motor member in the second space, wherein the magnetic field applying unit separates the optical pickup from the optical pickup. When loading and unloading the cartridge, the magnetic field applying unit is separated from the optical pickup, and is retracted to a predetermined retracted position inside the apparatus and outside the movement area of the cartridge. At the time of recording on a disk in the cartridge, switching means for coupling the magnetic field applying means to the optical pickup; movement of the second motor member to the second space; and light from the magnetic field applying means by the switching means. Control means for controlling the second motor member and the switching means so as to simultaneously start coupling to the pickup. Magneto-optical disk apparatus. 3. An optical pickup which moves in a movement area of the apparatus and irradiates a light beam to a disk in a cartridge disposed at a recording / reproducing position to detect light reflected from the disk, and an optical pickup comprising: An optical pickup guide member for guiding a disk in a radial direction, a magnetic field applying means for applying a magnetic field to the disk when recording information, a motor for rotating the disk, loading for positioning the cartridge to the recording / reproducing position, and A magneto-optical disk drive having unloading means for unloading the cartridge from the recording / reproducing position to the outside of the apparatus, wherein the motor moves in the direction of the loaded disk; The first space adjacent to the position of the first motor member before the A second motor member that moves between the second member and the second space that can be traced by the movement of the motor member in the direction of the disk, and that is coupled to the first motor member in the second space. When loading and unloading the cartridge, the magnetic field applying means can be separated from the optical pickup so that the magnetic field applying means can be separated from the optical pickup to a predetermined position within the apparatus and outside the movement area of the cartridge. Switching means for retracting to the retracted position and coupling the magnetic field applying means to the optical pickup during recording on the disk in the cartridge; and moving the second motor member and applying the magnetic field by the switching means. Wherein the movement is performed by the same drive source. 4. The magneto-optical disk drive according to claim 3, wherein the movement of the second motor member and the movement of the magnetic field applying means by the switching means are performed using the loading means. 5. A magnetic recording / reproducing apparatus, comprising: a separating / contacting means for changing a distance between a disk facing surface of the magnetic field applying means and a disk surface; and moving the second motor member and moving the magnetic field applying means by the switching means. 4. The magneto-optical disk drive according to claim 3, wherein the separation is performed by using the separating means.