JPH11238277A - Optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach and detach an optical disk onto a disk tray pulled out to one side of an outer housing by coping with the small thickness of an optical disk device due to the reduction of the thickness of the outer housing. SOLUTION: The optical disk device rotating the optical disk which is mounted on the disk tray 2 pulled out to one side of the outer housing 1 and pushed into a prescribed position inside of the housing 1 with this operation, by insert-holding from both side of it by a spindle 30 and a clamper 40 to be irradiated with light by an optical head moving in a radial direction is provided with a mechanism supporting frame 3 supporting the spindle 30 and the optical head and a clamper supporting frame 4 supporting the clamper 40 in the state of being capable of pulling out and pushing into with the tray 2 and allows each of these frames 3 and 4 to approach the tray 2 according to pushing-in and to move away according to pulling out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of placing an optical disk on a disk tray pulled out to one side of an outer housing, pushing the optical disk together with the disk tray into the outer housing, and placing the optical disk in a predetermined position set inside the outer housing. The present invention relates to an optical disk device to be mounted.

[0002]

2. Description of the Related Art An optical disk apparatus is configured such that an optical disk mounted at a predetermined position in an outer casing is clamped from both sides by a spindle and a clamper driven by a motor and rotated at a predetermined speed by the rotation of the spindle. Light is irradiated by an optical head that moves in the radial direction in proximity to the one surface, and the information recorded on the one surface is reproduced based on the result of receiving the reflected light from the one surface. In recent years, a magnetic head is provided in conjunction with the optical head on the other surface side of the optical disk, and a magnetic field formed by the magnetic head and light irradiation by the optical head cause
A magneto-optical disk drive capable of recording information on one surface has also been put to practical use.

In the optical disk apparatus as described above, the optical disk is placed on a disk tray drawn out to one side of an outer housing, and is pushed into the outer housing together with the optical disk to position the optical disk at the predetermined position. In general, a loading system in which the spindle is clamped between the spindle and the clamper at a position to be mounted is adopted.

In an optical disk apparatus employing such a loading method, when pulling out and pushing in a disk tray, a spindle and a clamper for holding the optical disk are separated from each other so as not to hinder this operation.
It is necessary to secure a moving path of the disk tray, and conventionally, a mechanism supporting frame for supporting a driving mechanism of a spindle including a motor for rotational driving, and a driving mechanism of an optical head, and a clamper supporting frame for supporting a clamper Are arranged so as to be able to contact and separate from each other inside the outer casing, and when the disk tray is pulled out and pushed in, both support frames are separated from each other to secure a moving path of the disk tray.

[0005]

However, in this configuration, there is a limit in reducing the thickness of the outer casing in order to secure a space necessary for the operation of moving the mechanism support frame and the clamper support frame apart from each other. However, there has been a problem that it is difficult to respond to a demand for a thin optical disk device.

To cope with this problem, Japanese Unexamined Patent Publication No. 9-7264 discloses that the mechanism support frame and the clamper support frame are integrated with a disk tray so that they can be pulled out from the outer casing and pushed into the outer casing. There is disclosed an optical disk apparatus which is configured to open the upper part of a disk tray drawn out of an outer casing together with a clamper by manually operating a clamper support frame, and to mount and remove an optical disk in this state.

[0007] In this configuration, since the space for contacting and separating the mechanism support frame and the clamper support frame is not required inside the outer casing, the thickness of the outer casing can be reduced as much as possible, and the apparatus can be used in a small size. The thickness can be reduced.

On the other hand, since the disc tray and the mechanism support frame are still integrated when the optical disc is attached or detached when the clamper support frame is opened, when the optical disc is taken out, the disc is taken out from the spindle projecting above the disc tray. The operation also requires an operation of correctly fitting the spindle onto the spindle when mounting the optical disk, which is a cumbersome operation as compared with a general attaching / detaching operation performed on an optical disk placed on a disk tray. Was required.

The present invention has been made in view of such circumstances, and provides an optical disk device that can cope with a reduction in the thickness of the device by reducing the thickness of an outer casing and that can easily attach and detach an optical disk. With the goal.

[0010]

An optical disk drive according to a first aspect of the present invention is mounted on a disk tray pulled out to one side of an outer casing, and is pushed together with the disk tray into a predetermined position inside the outer casing. The optical disc drive is constructed such that the optical disc is configured to rotate while holding the optical disc from both sides by a spindle and a clamper, and to irradiate the light by an optical head moving in a radial direction close to one surface. A mechanism support frame that supports the disk tray on the opposite side and a clamper support frame that supports the clamper on the opposite side of the disk tray are provided so as to be able to be pulled out and pushed in with the disk tray. Each is brought close to the disc tray according to the pushing, and Characterized by comprising a moving means of separating.

In the present invention, when the disk tray is pulled out to one side of the outer casing, the mechanism support frame for supporting the spindle and its drive mechanism together with the drive mechanism for the optical head and the clamper support frame for supporting the clamper are provided. Then, the optical disk is separated from the disk tray while being pulled out together with the disk tray, whereby the clamping of the optical disk by the spindle and the clamper is released, and the optical disk is easily attached and detached from between the disk tray and the clamper support frame separated from one side thereof. be able to. The optical disk placed on the disk tray is clamped between the spindle and the clamper at a predetermined position in the outer casing by a spindle support frame and a clamper support frame that approach as the disk tray is pushed in. It is rotated by rotation.

In an optical disk apparatus according to a second aspect of the present invention, the disk tray includes a storage portion for a cartridge containing an optical disk, and the storage portion is provided on the cartridge to cover a recording surface of the optical disk. An opening means for opening the shutter in response to insertion of the cartridge is provided.

According to the present invention, when a cartridge containing an optical disk is inserted into a storage portion provided on the disk tray, a shutter provided on the cartridge is opened by the operation of an opening means corresponding to the insertion to record the optical disk. The surface is exposed, and when the disc tray is pushed in thereafter, light irradiation by the optical head provided on the mechanism support frame approaching the disc tray becomes possible. Thus, it is possible to use the optical disk directly mounted on the disk tray and the optical disk built in the cartridge together.

An optical disk device according to a third aspect of the present invention is directed to a magneto-optical disk capable of recording by magnetic field modulation, facing the magneto-optical disk from the opposite side of the optical head, and interlocking with the optical head. A magnetic head for forming a magnetic field,
The apparatus is characterized in that a means for retracting the clamper support frame in accordance with the separation is provided.

In the present invention, the magnetic head opposing the magneto-optical disk from the opposite side of the optical head and the magnetic head interlocked with the optical head is located on the same side as the disk tray is pulled out from the outer casing. Evacuate with
The magneto-optical disk can be attached to and detached from the drawn-out disk tray without any trouble due to the presence of the magnetic head.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. 1 and 2 are side sectional views schematically showing the configuration of an optical disk device according to the present invention.
As shown in the drawing, an optical disk device according to the present invention includes a disk tray 2, a mechanism support frame 3, and a clamper support frame 4 inside a hollow outer housing 1 having one side open.

The disk tray 2 is a dish-shaped member provided with a concave portion 2a for mounting the optical disk D on one surface (upper surface), and has a size corresponding to the opening of the outer casing 1 on one side. A cover plate 20 is provided in a row, and the cover plate 20 is gripped and pushed and pulled, as shown in FIG. 1, together with the optical disc D placed on the recess 2a at a predetermined position inside the outer casing 1. 2 and, as shown in FIG. 2, it can be moved to a position where it is pulled out of the outer casing 1.

This movement is performed by the linear guides (not shown) formed between the both sides of the disk tray 2 and the inner surface of the outer casing 1 facing each other. Is generated while maintaining the parallelism. When the disc tray 2 is in the pushed-in position, as shown in FIG. 1, the opening of the outer casing 1 is closed by the cover plate 20.

The mechanism supporting frame 3 is provided on the optical disc D.
Is a plate-like member that supports the drive spindle 30 and the optical head 31 together with the respective drive mechanisms on one surface thereof, and extends along the edge of the disk tray 2 that is located inside the outer casing 1. With the base end pivotally supported by the support shaft 21 and the support surfaces of the spindle 30 and the optical head 31 facing the disk tray 2,
The disk tray 2 is swingably mounted at a lower position.

Further, the clamper supporting frame 4 has a clamper 40 for holding the optical disc D between the clamper 40 and the spindle 30.
Is a plate-like member that is supported at substantially the center of one surface thereof,
The base end is pivotally supported by a support shaft 22 extending in parallel with the support shaft 21 and the support surface of the clamper 40 faces the disk tray 2. It is swingably attached to the upper position.

The mechanism support frame 3 integrally includes a semi-circular sector gear 32 centered on the support shaft 21 above a support portion of the support shaft 21. Clamper support frame 4
Similarly, the support shaft 22 is provided below the support portion of the support shaft 22.
, A semi-circular sector gear 42 centered at the center. These sector gears 32 and 42 are meshed with each other at opposing portions thereof, and swing the mechanism support frame 3 around the support shaft 21 and the clamper support frame 4 around the support shaft 22.
Is transmitted through the meshing portion of the sector gears 32 and 42, and is generated in conjunction with each other.

On the side surfaces of the mechanism support frame 3 and the clamper support frame 4, connecting links 33 and 43 are attached to support the ends thereof, respectively.
The other end of each of the reference numerals 3 and 43 is movably connected to an elongated hole 23 formed on a side edge of the disk tray 2.

The mechanism support frame 3 configured as described above
When the disc tray 2 is in the pushed-in position, it overlaps the lower position of the disc tray 2, and the clamper support frame 4 overlaps the upper position of the disc tray 2.
At this time, different guide rollers 10 and 11 protruding from the upper surface of the mechanism support frame 3 and the lower surface of the clamper support frame 4 near the opening side of the inner surface of the outer casing 1 come into contact with each other.

That is, the mechanism support frame 3 is restrained by the guide roller 10 and the support shaft 21 in a posture parallel to the disk tray 2, and the spindle 30 supported thereby is
It protrudes to the upper part of the disc tray 2 through an opening formed in the center of the recess 2a. The clamper support frame 4 is restrained by the guide roller 11 and the support shaft 22 in a position parallel to the disk tray 2, and the clamper 40 supported by the clamper 40 is opposed to the spindle 30.

Thus, the recess on the upper surface of the disc tray 2
As shown in FIG. 1, the optical disk D placed on the disk 2a is clamped between the spindle 30 and the clamper 40 at a position separated from the upper surface of the disk tray 2 by a predetermined length. The optical head 31 supported by the mechanism support frame 3 is mounted on the disc tray 2.
Irradiates the recording surface with light while being moved in the radial direction by the operation of a drive mechanism (not shown), facing the lower surface (recording surface) of the optical disk D via a long hole extending in the radial direction at the corresponding position. The reproducing operation is performed based on the result of receiving the reflected light from the recording surface.

On the other hand, as shown in FIG. 2, the mounting and dismounting of the optical disk D is performed by pulling out the disk tray 2 from one side opening of the outer casing 1. This drawer is, as described above,
This operation can be performed manually by gripping the cover plate 20 that closes the opening, but it is also possible to automatically perform the operation by applying a moving force to the disk tray 2 by a motor (not shown).

By this pull-out operation, the support shafts 21, 22
The mechanism support frame 3 and the clamper support frame 4 supported by the disc tray 2 are pulled out while being kept in a parallel state with the disc tray 2 by the guide action of each of the other guide rollers 10 and 11 which come into contact with them. The rolling contact position of the guide rollers 10 and 11 approaches the supporting position of each of the support shafts 21 and 22 as the support frames 3 and 4 are pulled out, so that the restraining effect by each is lost.

Therefore, the mechanism support frame 3 in the lower position
Swings by its own weight in a mode in which the drawer side is opened downward with the support shaft 21 as a pivot, and this swing is caused by the sector gear 3
The clamper support frame 4 is transmitted to the clamper support frame 4 via the engagement portions of the clamp members 2 and 42, and swings in such a manner that the drawer side opens upward with the support shaft 22 as a pivot. For swinging of the mechanism support frame 3 and the clamper support frame 4, for example, biasing springs for biasing the support shafts 21 and 22 in a direction to open them are interposed near the respective support shafts 21 and 22. It is also possible to adopt a configuration in which this is performed using force.

As a result, as shown in FIG. 2, the mechanism support frame 3 is provided below the disk tray 2 drawn out of the outer casing 1, and the clamper support frame 4 is provided above the disk tray 2.
Are separated from each other, and the optical disk D on the disk tray 2 is
The clamping by the spindle 30 and the clamper 40 is released, and is left inside the recess 2a on the upper surface of the disk tray 2 which keeps substantially horizontal, so that it can be easily taken out from between the disk tray 2 and the clamper support frame 4. it can. At this time, the opening angle between the mechanism supporting frame 3 and the clamper supporting frame 4 is such that the other ends of the connecting links 33 and 43 having one end connected to each of them are formed on the disc tray 2 as shown in FIG. It is limited by contacting one end of the elongated hole 23.

On the other hand, when a new optical disk D is mounted, the optical disk D is roughly positioned and placed inside the recess 2a on the disk tray 2, and in this state, the disk tray 2 is placed in the outer casing 1. Just push it. At this time, the mechanism support frame 3 and the clamper support frame 4 swing around the respective support shafts 21 and 22 by the action of the guide rollers 10 and 11 rollingly contacting the upper and lower surfaces, respectively, and approach the disk tray 2. The optical disk D on the disk tray 2 is clamped between the spindle 30 and the clamper 40 as described above. At this time, the connecting links 33 and 43 move to the other side along the elongated holes 23 formed in the disc tray 2, and as shown in FIG. The swing of the support frames 3 and 4 is not hindered.

As described above, in the optical disk apparatus shown in FIGS. 1 and 2, the mechanism support frame 3 and the clamper support frame 4 can be pulled out and pushed together with the disk tray 2 into the outer casing 1, so that the drawer can be pulled out. In this state, the optical disk D can be easily attached and detached in this state. In addition, since the optical disk D approaches the disk tray 2 in response to the pushing, the spindle 30 and the clamper 40 at a predetermined position inside the outer casing 1 are moved. Thus, the optical disk D is securely held. Also, a mechanism support frame 3 that is vertically pushed over the disc tray 2 in a pushed state is provided in the outer casing 1.
In addition, it is only necessary to have a thickness capable of accommodating the clamper support frame 4, and the outer casing 1 can be reduced in thickness.

In the embodiment shown in FIGS. 1 and 2, the mechanism support frame 3 and the clamper support frame 4
The contact and separation operations of the shafts 21 and 22 on the inner side of the disc tray 2
Since this is caused by the swinging around, a sufficient space is secured above the disk tray 2 when the disk tray 2 is separated from the disk tray 2, and the optical disk D can be more easily attached to and detached from the disk tray 2. Note that the contact / separation operation is not limited to the above-described swinging, but may be another operation such as a configuration in which the disk tray 2 is moved up and down in parallel.

In the embodiment shown in FIGS. 1 and 2, the swinging of the mechanism supporting frame 3 and the swinging of the clamper supporting frame 4 are interlocked between the sector gears 32, 32, respectively.
42, the clamper supporting frame 4 is formed by utilizing the swing of the mechanism supporting frame 3 due to its own weight.
Can be swung, and a dedicated means for the swing is not required, and the configuration can be simplified. As described above, the rocking operation is performed by using the spring force of the biasing springs interposed on the respective support shafts 21 and 22, so that the contact and separation operation can be performed more reliably.

Further, in the embodiment shown in FIGS. 1 and 2, since the guide rollers 10 and 11 which are in contact with the mechanism support frame 3 and the clamper support frame 4 are arranged inside the outer casing 1, the swinging is performed. The pull-out and pushing-in of the supporting frames 3 and 4 can be performed smoothly, and the supporting frames 3 and 4 after the pushing-in is completed by the synergistic action with the separate support shafts 21 and 22. And the optical disc D is pinched by the spindle 30 and the clamper 40 with high accuracy.

In the optical disk device according to the present invention configured as described above, the optical disk D is
And the clamper 40 are clamped at a predetermined distance away from a recess 2a serving as a mounting portion on the disk tray 2 pushed into the outer casing 1. This separation length is to allow the handling of the optical disk built in the cartridge widely used in the magneto-optical disk configured to record information, and to make the separation from one side of the cartridge to the internal disk. Corresponds to the length.

FIG. 3 is a plan view showing the structure of a disk tray which enables the use of a cartridge containing an optical disk. The disc tray 2 is provided with side plates 2b, 2b having predetermined heights formed by raising both side edges in a range from the upper portion of the recess 2a for directly placing the optical disc D to the base end.
A top plate 2c is installed between the top plates, and a storage unit into which the cartridge C can be inserted is provided.

The cartridge C stored in the storage section
Is a rectangular housing in which the optical disk D is built, between which one edge is slidable along the one edge, and a part of the optical disk D is opened by this sliding. In addition, a shutter S to be exposed to the outside is attached. The storage portion of the disc tray 2 has a height corresponding to the thickness of the cartridge C, that is, the height at which the top plate 2c is erected, and the cartridge C has an edge portion on the mounting side of the shutter S. Is inserted into the storage section first, so that it is held between the upper surface of the disk tray 2 and the lower surface of the top plate 2c.

The top plate 2c is formed with a slot-shaped guide hole 2d which is inclined from the opening side for inserting the cartridge C toward the other side and toward the center in the width direction. An opening pin 2e is attached to the guide hole 2d so as to be slidable along the guide hole 2d. The tip of the release pin 2e is
And the guide hole 2d is positioned at the opening side end in the width direction of the opening concave groove 5 formed in a part of the shutter S of the cartridge C inserted into the storage section. It corresponds to.

Accordingly, as described above, when the cartridge C is inserted into the storage section with the shutter S attached side first, the tip of the open pin 2e projecting below the top plate 2c engages with the concave groove 5. By further insertion, the release pin 2e is kept engaged with the concave groove 5 and the guide hole 2d
, And is displaced toward the center in the width direction as it reaches the inner side, and in response to this displacement, the shutter S slides in the width direction along the edge of the cartridge C, The recording surface of the optical disk D built therein is opened.

As described above, the disc tray 2 shown in FIG.
, A storage unit into which the cartridge C can be inserted is provided, and this storage unit is provided with a means for opening the shutter S with the insertion of the cartridge C. Therefore, the recording surface of the optical disk D built in the cartridge C is exposed at the stage of mounting on the disk tray 2, and when the disk tray 2 is pushed into a predetermined position in the outer casing 1, the optical disk D The optical disk D is sandwiched between the mechanism supporting frame 3 and the clamper supporting frame 4 approaching the disk tray 2 as described above, and the recording surface of the optical disk D faces the optical head 31 supported by the mechanism supporting frame 3. Then, the light irradiation from the optical head 31 becomes possible.

That is, according to the configuration of this embodiment, there is no need to arrange a mechanism for opening the shutter S inside the outer casing 1, and the configuration of the outer casing 1 is simplified, and the optical disc apparatus is Can be further reduced in thickness.

In some cases, the optical disk D set on the disk tray 2 is a magneto-optical disk configured to be recordable by magnetic field modulation. A magnetic head 6 for forming a predetermined magnetic field is arranged in the vicinity. FIG. 4 is a side sectional view showing a configuration of a main part of an optical disk device according to the present invention which is configured for a magneto-optical disk.

The magnetic head 6 includes the mechanism holding frame 3
A support plate (gimbal) 61 having a predetermined elasticity is attached to an upper end portion of a support leg 60 extending upward from a part of the upper optical head 31 so as to face the upper surface of the optical disc D, The optical disk D moves in the radial direction according to the movement of the optical head 31 generated on the mechanism holding frame 3.

The clamper holding frame 4 which covers the upper part of the disc tray 2 is located near the support by the support shaft 22.
As shown in the figure, a pull-up pin 62 facing the upper part of the magnetic head 6 is attached to the facing part with a predetermined gap in the middle of the lower surface of the support plate 61 of the magnetic head 6. ing.

FIG. 4A shows a state where the disc tray 2 is at the pushed-in position. At this time, the mechanism holding frame 3 and the clamper support frame 4 are in a state of being close to the disk tray 2, and the pull-up pins 62 attached to the clamper support frame 4 serve as support plates for the magnetic head 6.
No contact with 61. Therefore, the magnetic head 6 is
Due to the elasticity of the optical disk D, a slight contact state with the upper surface of the optical disk D is maintained, and the optical disk D follows the movement of the optical head 31.
Can be freely moved in the radial direction, and information is recorded on an optical disc D configured as a magneto-optical disc by the magnetic field formed by the magnetic head 6 and the irradiation of light from the optical head 31.

FIG. 4B shows a state where the disk tray 2 is at the drawn-out position. At this time, the mechanism holding frame 3 and the clamper support frame 4 separate from the disc tray 2 by swinging around the support shafts 21 and 22, and the pull-up pins 62 attached to the clamper support frame 4 cause the swing of the clamper support frame 4. The movement causes the support plate 61 of the magnetic head 6 to be bent by contacting the support plate 61 from below, and the magnetic head 6 is retreated to a position separated from the upper surface of the optical disk D by a suitable length. Thus, the mounting and dismounting of the optical disk D with respect to the disk tray 2 in the pulled-out state can be performed without any trouble due to the presence of the magnetic head 6.

Since the retraction of the magnetic head 6 as described above is caused by mechanical connection with the swinging operation of the clamper support frame 4, there is no need to provide a dedicated means for retreating the magnetic head 6, and the structure is reduced. It can be simplified.

[0048]

As described in detail above, in the optical disk apparatus according to the first aspect of the present invention, when the disk tray is pulled out of the outer casing for mounting and removing the optical disk, the mechanism supporting frame and the clamper supporting frame are moved together with the disk tray. Is pulled out of the disc tray while being pulled out, so that the optical disc released from being clamped by the spindle and the clamper remains on the disc tray and can be easily attached to and detached from the clamper support frame. The clamper support frame moves closer to the disk tray when the disk tray is pushed into the outer casing and clamps the optical disk on the disk tray between the spindle and the clamper, so that the optical disk can be reliably driven. These can be installed inside the outer casing by the mechanism support frame and the clamper support frame. Since is achieved without requiring a space for contact and separation of the arm, it is possible to respond to thinning of the device.

Further, in the optical disk apparatus according to the second aspect of the present invention, the storage section of the cartridge containing the optical disk is provided in the disk tray, and the storage section is provided with the shutter opening means provided in the cartridge. The shutter is opened in response to the storing operation in the storing section of the optical disk, and the recording surface of the optical disk is exposed, and the optical head provided in the mechanism supporting frame can irradiate the recording surface with light by pushing the disk tray thereafter. Becomes
A dedicated means for opening the shutter is not required in the outer casing, and the built-in disk of the cartridge and the optical disk directly mounted on the disk tray can be used together without complicating the configuration.

Further, in the optical disk apparatus according to the third invention of the present invention, which targets a magneto-optical disk capable of recording by magnetic field modulation, the magnetic head facing the magneto-optical disk from the opposite side of the optical head is moved from the outer casing. The evacuation is performed according to the detachment operation of the clamper support frame accompanying the withdrawal of the disk tray, so that the evacuation can be performed without requiring any special means. The present invention has excellent effects, for example, it can be performed without any trouble due to the presence of the head, and can respond to a magneto-optical disk with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a side sectional view schematically showing a configuration of an optical disk device according to the present invention.

FIG. 2 is a side sectional view schematically showing a configuration of an optical disk device according to the present invention.

FIG. 3 is a plan view showing a configuration of a disk tray which enables use of a cartridge.

FIG. 4 is a side sectional view showing a configuration of a main part of an optical disk device according to the present invention configured for a magneto-optical disk.

[Explanation of symbols]

 1 outer casing 2 disk tray 2c top plate 2d guide hole 2e release pin 3 mechanism support frame 4 clamper support frame 5 concave groove 6 magnetic head 21 support shaft 22 support shaft 30 spindle 31 optical head 32 sector gear 40 clamper 42 sector gear 61 support Plate C Cartridge D Optical Disk S Shutter

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G11B 17/04 511 G11B 17/04 511F 511A

Claims (3)

[Claims] An optical disk placed on a disk tray pulled out to one side of an outer casing and pressed into a predetermined position inside the outer casing together with the disk tray is rotated by being sandwiched from both sides by a spindle and a clamper. An optical disk device configured to irradiate light with an optical head moving in a radial direction in proximity to one surface, wherein a mechanism support frame for supporting a drive mechanism of the spindle and the optical head on a side opposite to the disk tray; A clamper supporting frame for supporting the clamper on the side opposite to the disc tray, the drawer and the disc tray being provided so as to be able to be pulled out and pushed in, each of these support frames is brought closer to the disc tray in accordance with the pushing, An optical disc characterized by comprising contact / separation means for separating the sheet in accordance with the drawer. Apparatus. 2. The disk tray according to claim 1, further comprising: a storage portion for storing a cartridge containing the optical disk, wherein the storage portion operates a shutter provided on the cartridge to cover a recording surface of the optical disk in response to insertion of the cartridge. 2. The optical disk device according to claim 1, further comprising an opening means for opening. 3. A magneto-optical disk capable of recording by magnetic field modulation, wherein the magnetic head for forming a magnetic field which faces the magneto-optical disk from the opposite side of the optical head and cooperates with the optical head is provided with the clamper. 3. The optical disk device according to claim 1, further comprising: means for retracting when the support frame separates.