JPH0652615A - Optical disk device - Google Patents

Abstract

PURPOSE:To obtain the optical disk device capable of loading an optical disk into the inside of the device only by inserting a cartridge. CONSTITUTION:A slider 7 is supported lovely in the vertical and cartridge inserting and ejecting (horizontal) directions on a mechanical chassis 6. The horizontal mevement of the slider 7 is dependent on a rotational position of a shutter lever 22, and the slider 7 in a rotational position when the cartridge is inserted and a shutter is fully opened, is moved in the direction of an arrow B by force of a spring 35, and is also lowered to the side of the mechanical chassis 6. On the other hand, a clamp slider 18 is moved in the direction of B in accordance with the movement of the slider 7. Then, an engagement part of a clamper supporting member 41, mounted on a flat part on the clamp slider 18 is brought into contact with the clamp slider on their tapered surfaces with each other. As a result, the clamper supporting member 41 is rotated downward to make a clamper 40 approach a turntable 10. Thus, the loading of the optical disk is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device such as a CD-ROM drive using an 8 cm CD as a recording medium.

[0002]

2. Description of the Related Art A CD (Compact Disc) is excellent in that it has a large capacity and compactness among recording media and is capable of mass copying, and is used as a music source or a database of a computer. Diameter up to now 12
Although a cm CD has been widely used as a standard product, a more compact 8 cm CD having a diameter of 8 cm has started to be used. By the way, as shown in FIG. 10, when mounting a disc on an optical disc device for an 8 cm CD, the optical disc 101 is placed on the turntable 102, and then the upper lid 104 of the optical disc apparatus main body 103 is closed. The main method is to hold the optical disk 101 between the mounted clamper 105 and the turntable 102.

However, when the optical disk device is built in a portable or small computer or word processor,
A horizontal loading method that does not limit the mounting place is suitable. And this horizontal loading method,
For example, there are a tray system in which a disc is placed on a tray and pulled into the device, and a cartridge system in which an optical disc is put in a cartridge having an opening / closing shutter and the cartridge is pulled into the device.

FIG. 11 is a perspective view showing the outer appearance of a tray type optical disk device, and shows a state where the tray 106 is housed. FIG. 12 is a perspective view showing the horizontal loading mechanism of the optical disk device of FIG.

The mounting / dismounting of a disc in this optical disc device is performed as follows. First, the disc 101 is placed on the disc mounting plate 107 in the tray 106, and then the tray 106 is pushed in the direction of arrow A. As a result, the tray 106 is held at a predetermined position inside the device by a holding mechanism (not shown) inside the device.

The state at this time is shown in FIG. As shown in the figure, a disc mounting plate 10 on which a disc 101 is placed.
7 is pushed up by the force of the leaf spring 108 to a predetermined height regulated by the tray 106, and is elastically held at that position. This avoids a collision between the disc 101 and the turntable 102 when the tray is stored.

Next, the lever 110 is rotated with a finger in the direction of arrow B. Then, the lever shaft 11 connected to the lever 110
1 and the rotating members 112 and 113 also rotate in the direction of arrow C. Here, since the rotating member 113 is inserted into the opening 115 provided in the clamp member 114, the rotating member 11
By rotating 3 in the direction of arrow C, the clamp member 114
Is about the rotary shaft 116 in the direction of arrow D, that is, the clamper 10
5 is rotated in the direction of approaching the turntable 102.

The state at this time is shown in FIG. As shown in the figure, when the clamp member 114 rotates in the direction of the arrow D, the protrusion 117 provided on the clamp member 114 becomes
The disc mounting plate 107 that has been pushed up by the force of the leaf spring 108 is pushed down, and as a result, the disc 1
01 is placed on the turntable 102.

After this, the disk 101 is centered by the central projection 118 of the turntable 102 and the clamper 105, and is fitted by a magnetic attraction force between a magnet (not shown) and an attraction plate or a spring pressure by a leaf spring (not shown). , The disc mounting is completed.

When releasing the mounting of the disk 101,
First, the lever 110 is rotated in the opposite direction of arrow B. Then, the lever shaft 111 connected to the lever 110 and the rotating member 1
12, 113 also rotate in the opposite direction of the arrow C, and the opening 1
15 is pushed upward, and the clamp member 114 is rotated by the rotary shaft 1.
It rotates about 16 in the direction of arrow F. As a result,
The state of 4 is changed to the state of FIG. 13, and the mounting of the optical disc 101 is released.

After that, the holding mechanism (not shown) inside the apparatus is released, and the tray 106 is pulled out by the finger in the direction opposite to the arrow A.

The cartridge system is similar to this,
This is done by turning the lever after pushing the cartridge into the device.

As described above, the disc is generally mounted by placing the disc on the tray and pushing the disc into the apparatus, and then rotating the lever to clamp the disc between the clamper and the turntable.

However, in these methods, the user himself / herself has to perform two operations in order to load and unload the disc, that is, an operation of inserting / drawing a tray or a cartridge and an operation of operating the clamper control mechanism.

Further, these systems require a large space for the clamper control mechanism, which hinders downsizing and thinning of the optical disk device.

[0016]

As described above, 8 cmC
A horizontal loading type optical disc device that uses D or the like as a storage medium inserts or removes a tray or a cartridge when mounting or releasing a disc in or from the optical disc device.
There is a problem that two operations, that is, pulling out and controlling the clamper have to be performed, and the clamper control mechanism becomes large, which hinders downsizing and thinning of the optical disk device.

The present invention is intended to solve such a problem, and an optical disk can be mounted inside the apparatus simply by inserting a cartridge, and an optical disk mounted inside the apparatus can be mounted by simply pressing an eject button. It is an object of the present invention to provide an optical disk device that can be ejected and can be made smaller and thinner as a whole device.

[0018]

In order to achieve the above-mentioned object, the optical disk device of the present invention is inserted in an optical disk device for reproducing an optical disk housed in a cartridge having a shutter exposing a signal recording surface. Cartridge holder that holds the cartridge, a shutter lever that is rotatably supported by the cartridge holder, and that opens the shutter when the cartridge is inserted into the cartridge holder, and a lever side that is provided on part of the end surface of the shutter lever. A clamp that is mounted on a cartridge holder and a mechanical chassis having at least a turntable mounted thereon, and a clamper that clamps an optical disk in the cartridge between the turntable and the clamper so that the clamper can move up and down with respect to the surface of the optical disk. Board and cartridge ho Mounted on the mechanical chassis so as to be movable in the horizontal and vertical directions with respect to the surface of the optical disc, and a slider provided on the slider, which engages with the lever according to the rotational position of the shutter lever. A slider side engaging portion for slidingly moving the slider in the horizontal direction with respect to the surface of the optical disc while engaging with the coupling portion, and the slider is moved in the vertical direction with respect to the surface of the optical disc as the slider slides. A slider up / down moving means and a clamper moving means for moving the clamper in a direction perpendicular to the surface of the optical disk as the slider slides are provided.

[0019]

That is, in the optical disk device of the present invention, when the cartridge is inserted into the cartridge holder at the predetermined position, the slider is engaged with the surface of the optical disk by the engagement of the slider side engaging portion and the lever side engaging portion. It slides horizontally in one direction, and along with this slide movement, the slider up / down moving means moves the slider to the first position before the completion of loading the cartridge.
And the clamper moving means moves the clamper to the first position before the completion of cartridge loading.
From the position (2) to the second position where the optical disk can be held between the position and the turntable. With this, the optical disk can be mounted in the apparatus only by inserting the cartridge into the cartridge holder. Further, by directly connecting the eject button to the slider, the mechanism section of the present apparatus operates in the reverse order and the cartridge can be ejected from the inside of the apparatus only by pressing the eject button. Further, according to the present invention, since the required amount of vertical movement of the clamper is covered by the vertical movement of the slider and the clamper, the clamper mechanism system can be downsized and thinned, and the optical disc apparatus can be downsized. And it is possible to realize a thin structure.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an 8 cm CD according to an embodiment of the present invention.
It is a perspective view showing the appearance of an optical disk device for reproduction.

In the figure, 1 is an optical disk drive,
Reference numeral 2 is a cabinet of the optical disk drive 1.
On one side surface of the cabinet 2, there is provided an opening 4 for inserting and removing a disc cartridge (hereinafter, simply referred to as a cartridge) 3 in which an 8 cm CD is individually stored. An eject button 5 for ejecting the cartridge 3 loaded in the optical disk drive 1 is arranged on the surface having the opening 4.

FIG. 2 is a perspective view showing a state where the cabinet 2 is removed from FIG. 1, and FIG. 3 is an exploded view thereof.

As shown in these figures, the optical disk drive 1 is mainly composed of a mechanical chassis 6 on which a slider 7, a cartridge holder 8 and a clamp plate 9 are stacked in this order.

The mechanical chassis 6 is provided with a turntable 10 and an optical pickup 11 which are connected to a disc motor (not shown). Turntable 10
Is partially or entirely made of a magnetic material. The optical pickup 11 can be moved back and forth in the directions of arrows A and B in the figure by a pickup feed mechanism (not shown). Further, the mechanical chassis 6 is provided with three guide grooves 12. Each of the guide grooves 12 has a tapered portion at one end, and is engaged with these protruding portions 13 while slidingly contacting the tapered portion of each protruding portion 13 protruding from the lower surface of the slider 7.

The slider 7 is provided with a first bent portion 14 connected downward to the eject button 5 described above,
It penetrates through the opening 15 provided in the mechanical chassis 6 and reaches the locking hole 16 of the eject button 5. Then, when the eject button 5 is pressed, the force is transmitted to the slider 7 through the first bent portion 14, and the slider 7 slides in the direction of arrow A. Further, the slider 7 is provided with a second bent portion 17 which is bent upward. The tip end of the second bent portion 17 is inserted into the clamp plate 9 and the locking hole 19 provided in the clamp slider 18 on the clamp plate 9. Further, the slider 7 is provided with a third bent portion 20 facing upward. The tip end of the third bent portion 20 is inserted into the opening 21 provided in the cartridge holder 8, and the opening 21
It is engaged while slidingly contacting with a part of an end surface (cam portion and notch portion) of a shutter lever 22 described later.

The cartridge holder 8 has side plates 23 erected on both sides to form a holding space for the cartridge 3, and an opening 24 for access by the optical pickup 11 is provided in the central portion. Further, as shown in FIG. 4, a shutter pin 25 is provided upright on the upper surface of the cartridge holder 8. The shutter pin 25 has a shutter 26 of the inserted cartridge 3.
A shutter lever 22 for opening and closing is rotatably supported. A coil spring 27 is wound around the shutter pin 25. One end of the coil spring 27 abuts against and is supported by a bent portion 28 provided by bending the clamp plate 9 downward, and the other end is coupled to the shutter lever 22. As a result, the shutter lever 22 is constantly moved by the force of the coil spring 27 to the arrow C
Is urged in the direction of rotation. Also shutter lever 2
At one end of 2, a lever pin 29 is erected which fits into a recess 48 provided in the shutter 26 of the cartridge 3 and slides the shutter 26 in the direction of arrow D. Further, the other end of the shutter lever 22 is provided with a cam portion 30 and a notch portion 31 as a portion to be engaged with the third bent portion 20 of the slider 7 described above. The cam portion 30 has an arc shape, that is, has a cam line whose distance from the shutter pin 25 is constant. Further, the notch 31 is provided at a rotational position where the shutter lever 22 engages with the third bent portion 20 when the shutter 26 of the cartridge 3 is fully opened.

On the other hand, four pins 32 are provided on the lower surface of the cartridge holder 8 so as to project therefrom. The pins 32 are inserted into pin insertion ports 33 and 34 provided in the slider 7 and the mechanical chassis 6, respectively, and are stopped from below the mechanical chassis 6 by a spring 35 and an E ring 36.
As a result, the cartridge holder 8 always receives a force that is pulled toward the mechanical chassis 6.

On the clamp plate 9, the above-mentioned clamp slider 18 is supported so as to be slidable along the inserting / removing direction of the cartridge 3. This clamp slider 18
Is connected to the other end of a spring 37, one end of which is supported by the clamp plate 9, and thus the clamp slider 18 is always urged in the direction of arrow B. Further, the clamp plate 9 is provided with two facing bent portions 38 which are respectively bent upward. A pin 39 is stretched over each bent portion 38 in parallel with the clamp plate 9.
A clamper 40 having a built-in magnet is attached to the pin 39.
A clamper support member 41, which is supported at one end thereof, is rotatably supported, that is, tiltably oscillated vertically about a pin 39. A coil spring 39a is wound around the pin 39. One end of the coil spring 39a is in contact with and supported by the upper surface of the clamp plate 9, and the other end is in contact with the upper surface of the clamper supporting member 41. As a result, as shown in FIG. 5, the clamper support member 41 is always urged in the arrow E direction, that is, in the direction in which the clamper 40 is lowered.

The clamper supporting member 41 has an engaging portion 42 for engaging with the clamp slider 18, as shown in FIG. The engaging portion 42 is composed of an inclined bent portion (taper portion) 43 corresponding to the taper 18 a provided on a part of the upper surface of the clamp slider 18 and a flat portion 44. As the clamp slider 18 slides in the insertion / removal direction of the cartridge 3, that is, in the directions of arrows A and B, the engagement state between the engagement portion 42 of the clamper support member 41 and the taper 18a of the clamp slider 18 is shown in FIG. a) and (b), the clamper support member 41 tilts and swings up and down about the pin 39 as an axis.

FIG. 6 is a perspective view showing the structure of the cartridge 3. As shown in the figure, a shutter 26 for exposing both surfaces of a part of the surface of the cartridge 3 including the center hole 46 of the optical disc 45 housed therein is orthogonal to the insertion / removal direction of the cartridge 3. It is mounted so that it can slide in any direction. However, the shutter 26
Is always biased in a closing direction by a spring (not shown). The cartridge 3 has a cartridge cover 47 that serves as a lid thereof and a disc storage space that matches the outer shape of the optical disc 45 therein. Further, as shown in FIG. 7, the shutter 26 is provided with a recess 48 into which the lever pin 29 of the shutter lever 22 is fitted in the process of inserting the cartridge 3.

Next, the operation of this optical disk drive is shown in FIG.
The description will be made with reference to FIG. 5 and FIGS. 8 and 9. In these figures, (a) shows the state before the completion of the cartridge loading, and (b) shows the state after the completion of the cartridge loading.

In the state before the completion of the cartridge loading,
The third bent portion 20 provided on the slider 7 is shown in FIG.
As shown in FIGS. 8 (a) and 8 (a), the shutter lever 22 is in contact with the arcuate cam portion 30 and is fixed at the position shown in the figure.

At this time, as shown in FIGS. 5 (a) and 9 (a), the slider 7 has protrusions 13 projecting from the lower surface thereof and guide grooves 12 provided in the mechanical chassis 6 and the guide grooves 12 mutually. Is supported on the mechanical chassis 6 in a state where a part of the tapered surface is in contact. As a result, the structures (slider 7, cartridge holder 8, clamp plate 9) on the mechanical chassis 6 are fixed at the prescribed height and position before the completion of loading the cartridge.

On the other hand, the clamp slider 18 on the clamp plate 9 is located at the moving end in the direction of arrow A against the force of the spring 37 during this period. At this time, the clamper support member 41 is
The flat portion 44 of the engaging portion 42 is in a state of overcoming the taper 18a of the clamp slider 18 and reaching the flat portion of the clamp slider 18, whereby the height of the clamper 40 before the completion of the cartridge loading is maintained.

The cartridge holder 8 is pulled toward the mechanical chassis 6 by the force of the spring 35,
Moreover, since the respective projections 13 of the slider 7 and the respective guide grooves 12 of the mechanical chassis 6 are engaged with each other by the tapered surface, the slider 7 always receives the force for lowering it along the tapered surface. Will be. Therefore, in the state before the cartridge is loaded, the force of the spring 27 that urges the shutter lever 22 to rotate acts as a force that restricts the downward movement of the slider 7.

When the cartridge 3 is inserted into the cartridge holder 8 from the above state, the lever pin 29 of the shutter lever 22 fits into the recess 48 provided in the shutter 26 of the cartridge 3 during the insertion.

By further inserting the cartridge 3, the shutter lever 22 rotates in the direction of the arrow F around the shutter pin 25 against the rotational force of the spring 27, and the shutter 26 gradually opens accordingly. Go away.

When the shutter lever 22 is rotated until the shutter 26 is fully opened, the notch 31 of the shutter lever 22 is a bent portion of the slider 7 as shown in FIGS. 4 (b) and 8 (b). The bent portion 20 of the slider 7, which has been supported by the cam portion 30 until then, reaches the position opposite to 20, and enters the notch portion 31 of the shutter lever 22. As a result, the slider 7 slides in the direction of the arrow B by the depth of the notch 31 due to the force of the spring 35.

Further, as shown in FIGS. 5B and 9B, the protrusions 13 of the slider 7 taper with each other into the guide grooves 12 of the mechanical chassis 6 as the slide moves. The slider 7 descends until the lower surface comes into contact with the upper surface of the mechanical chassis 6 by sliding in while contacting the surfaces.

On the other hand, when the slider 7 slides in the direction of arrow B, the clamp slider 18 connected to the slider 7 through the second bent portion 17 moves in the same direction as the moving direction of the slider 7 by the same distance. . As a result, the taper portion 18a of the clamp slider 18 overlaps with the inclined bent portion 43 of the clamper support member 41, and the clamper support member 41 and the clamper 40 are in the direction of arrow E, that is, the clamper 40 is fixed to the mechanical chassis 6.
Rotate in the direction of approaching 0.

When the clamper 40 approaches the turntable 10, the clamper 40 is further attracted to the turntable 10 side by the magnetic attraction force, and the optical disc 45 in the cartridge 3 is sandwiched between the clamper 40 and the turntable 10 to mount the disc. Complete. When ejecting the cartridge 3, by pushing the eject button 5 with a finger, the slider 7 rises along the tapered surface of the mechanical chassis guide groove 12 and moves in the arrow A direction against the force of the spring 35.

Along with the movement of the slider 7, the clamp slider 18 slides in the direction of arrow A, and the engaging portion 42 (flat portion 44) of the clamper supporting member 41 exceeds the taper portion 18a of the clamp slider 18 and the flat portion. It will be in a state where you have climbed up to the top. As a result, the clamper 40 and the clamper supporting member 41 rotate in the direction of the arrow F, the coupling between the clamper 40 and the turntable 10 due to the magnetic attraction force is released, and the state before the cartridge is loaded is returned.

On the other hand, with the movement of the slider 7, the notch 31 of the shutter lever 22 to the bent portion 20 of the slider 7
When the shutter lever 22 is pulled out, the shutter lever 22 which has been restricted in rotation is rotated in the direction of arrow C by the force of the coil spring 27.

By rotating the shutter lever 22,
The cartridge 3 is ejected from the cartridge holder 8 while closing the shutter 26.

Thus, according to the optical disk apparatus of the present embodiment, the user can insert the cartridge 3 into the apparatus to mount the 8 cm diameter CD (optical disk 45). Further, regarding the disc mounting release, the cartridge 3 can be ejected from the inside of the apparatus only by pushing the eject button 5.

Further, according to the optical disk device of the present embodiment, the required amount of vertical movement of the clamper 40 is covered by the vertical movement of the slider 7 and the slight amount of rotation of the clamper supporting member 41. The system can be made smaller and thinner, and the optical disc device can be made smaller and thinner.

In this embodiment, the cartridge type optical disk device has been described, but the present invention can be applied to a tray type device.

[0049]

As described above, according to the optical disk device of the present invention, the optical disk can be mounted inside the device simply by inserting the cartridge, and the optical disk mounted inside the device by simply pressing the eject button. Can be discharged, and the size and thickness of the entire device can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external appearance of an optical disk device for an 8 cm CD according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state of the optical disk device with the cabinet removed from FIG.

FIG. 3 is an exploded view showing a mechanical portion of the optical disc device of FIG. 2 in an exploded manner.

FIG. 4 is a plan view showing an engagement relationship between a shutter lever and a slider bending portion in association with a shutter opening / closing operation of a cartridge.

5 is a cross-sectional view for explaining the operation of the mechanism section in the optical disc device of FIG.

FIG. 6 is a perspective view showing a configuration of a cartridge loaded in the optical disk device of FIG.

7 is a perspective view showing an engagement relationship between a shutter and a shutter lever provided in the cartridge of FIG.

8 is a perspective view showing an operation of an upper half mechanism section in the optical disc device of FIG.

9 is a perspective view showing the operation of the lower half mechanism section in the optical disk device of FIG. 2. FIG.

FIG. 10 is a perspective view showing how a disc is mounted in a conventional 8 cm CD optical disc device.

FIG. 11 is a perspective view showing an appearance of a conventional tray-type optical disk device.

12 is a perspective view showing a horizontal loading mechanism of the optical disk device of FIG.

13 is a cross-sectional view showing a state before the disc is mounted in the optical disc device of FIG.

14 is a cross-sectional view showing a state after the completion of the disc mounting in the optical disc device of FIG.

[Explanation of symbols]

1 ... Optical disk drive, 2 ... Cabinet, 3 ... Cartridge, 5 ... Eject button, 6 ... Mechanical chassis,
7 ... Slider, 8 ... Cartridge holder, 9 ... Clamp plate, 10 ... Turntable, 11 ... Optical pickup,
12 ... Guide groove, 13 ... Projection part, 18 ... Clamp slider, 18a ... Taper, 20 ... Bend part, 22 ... Shutter lever, 25 ... Shutter pin, 26 ... Shutter, 2
7 ... Coil spring, 29 ... Lever pin, 30 ... Cam part, 3
1 ... Notch, 32 ... Pin, 35 ... Spring, 36 ... E
Ring, 37 ... Spring, 39 ... Pin, 40 ... Clamper, 4
DESCRIPTION OF SYMBOLS 1 ... Clamper support member, 42 ... Engagement part, 43 ... Inclined bending part, 44 ... Flat part, 45 ... Optical disk.

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[Procedure amendment]

[Submission date] January 27, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

[0018]

In order to achieve the above-mentioned object, the optical disk device of the present invention is inserted in an optical disk device for reproducing an optical disk housed in a cartridge having a shutter exposing a signal recording surface. A cartridge holder that holds the cartridge,
A shutter lever, which is rotatably supported by the cartridge holder, opens the shutter when the cartridge is inserted into the cartridge holder, a lever-side engaging portion provided on a partial end surface of the shutter lever, and a car.
Place the optical disk stored in the cartridge and rotate it.
A turntable that is mounted on the cartridge holder, a clamp plate which vertically movably supports a clamper for clamping to the plane of the optical disc optical disc in the cartridge with the turntable for supporting the entire device
The mechanical chassis, the cartridge holder, and the clamp plate are mounted, and the slider is supported on the mechanical chassis so as to be movable in the horizontal and vertical directions with respect to the surface of the optical disk. The slider side engaging portion for sliding the slider in the horizontal direction with respect to the surface of the optical disc while engaging the lever side engaging portion, and the slider with respect to the surface of the optical disc as the slider slides. A slider vertical movement means for vertically moving the clamper and a clamper movement means for vertically moving the clamper with respect to the surface of the optical disk as the slider slides.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

The cartridge holder 8 has side plates 23 erected on both sides to form a holding space for the cartridge 3, and an opening 24 for access by the optical pickup 11 is provided in the central portion. Further, as shown in FIG. 4, a shutter pin 25 is provided upright on the upper surface of the cartridge holder 8. The shutter pin 25 has a shutter 26 of the inserted cartridge 3.
A shutter lever 22 for opening and closing is rotatably supported. A coil spring 27 is wound around the shutter pin 25. One end of the coil spring 27 abuts against and is supported by a bent portion 28 provided by bending the clamp plate 9 downward, and the other end is coupled to the shutter lever 22. As a result, the shutter lever 22 is constantly moved by the force of the coil spring 27 to the arrow C
Is urged in the direction of rotation. Also shutter lever 2
At one end of 2, a lever pin 29 is erected which fits into a recess 48 provided in the shutter 26 of the cartridge 3 and slides the shutter 26 in the direction of arrow D. Further, the other end of the shutter lever 22 is provided with a cam portion 30 and a notch portion 31 as a portion to be engaged with the third bent portion 20 of the slider 7 described above. The cam portion 30 has an arc shape, that is, has a cam line whose distance from the shutter pin 25 is constant. Further, the notch 31 is provided at a rotational position where the shutter lever 22 engages with the third bent portion 20 when the shutter 26 of the cartridge 3 is fully opened. And this lack
By inserting the third bent portion 20 into the insertion portion 31,
The rotation of the shutter lever 22 is locked and the car
The movement of the tridge 3 in the insertion direction is restricted.
ing.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction content]

When the shutter lever 22 is rotated until the shutter 26 is fully opened, the notch 31 of the shutter lever 22 is a bent portion of the slider 7 as shown in FIGS. 4 (b) and 8 (b). The bent portion 20 of the slider 7, which has been supported by the cam portion 30 until then, reaches the position opposite to 20, and enters the notch portion 31 of the shutter lever 22. As a result, the slider 7 slides in the direction of the arrow B by the depth of the notch 31 due to the force of the spring 35. In addition, the shutter lever 22 is
When 20 enters the notch 31, rotation
And the movement of the cartridge 3 in the insertion direction is limited.
It becomes the boundary point.

Claims (6)

[Claims] 1. An optical disk device for reproducing an optical disk housed in a cartridge having a shutter exposing a signal recording surface, and a cartridge holder for holding the inserted cartridge, and rotatably supported by the cartridge holder. A shutter lever that opens the shutter when the cartridge is inserted into the cartridge holder; a lever-side engaging portion provided on a partial end surface of the shutter lever; and a mechanical chassis that mounts at least a turntable. A clamp plate that is mounted on the cartridge holder and that supports a clamper that holds the optical disc in the cartridge between the turntable and the turntable so as to be vertically movable relative to the surface of the optical disc; the cartridge holder and the clamp plate And a slider supported on the mechanical chassis so as to be movable in a horizontal direction and a vertical direction with respect to the surface of the optical disc; and a slider provided on the slider, the lever side depending on a rotational position of the shutter lever. A slider-side engaging portion for slidingly moving the slider in the horizontal direction with respect to the surface of the optical disc while engaging with the engaging portion, and the slider with respect to the surface of the optical disc as the slider slides. An optical disk device comprising: a slider vertical moving means for vertically moving the clamper and a clamper moving means for vertically moving the clamper with respect to the surface of the optical disk as the slider slides. 2. The optical disk device according to claim 1, wherein when the cartridge is inserted into a predetermined position in the cartridge holder, the slider-side engaging portion and the lever-side engaging portion engage with each other. The slider slides horizontally in one direction with respect to the surface of the optical disc, and with this slide movement, the slider up-and-down moving means lowers the slider from the first position to the second position before the completion of loading the cartridge. At the same time, the clamper moving means is configured to lower the clamper from a first position before the completion of loading the cartridge to a second position where the optical disk can be held between the clamper and the turntable. Optical disk device. 3. The optical disk device according to claim 1, wherein the slider vertical movement means has a guide groove provided at the mechanical chassis with a taper at one end, and a taper provided at the guide groove. And a protrusion protruding from the slider with one end having a taper corresponding to the guide groove, and the guide groove and the guide groove in the moving range of the slider from the first position to the second position. An optical disk device characterized in that the respective taper surfaces and the protrusions are brought into contact with each other and engaged with each other. 4. The optical disk device according to claim 1, wherein the clamper moving means is provided on the clamper supporting member having a clamper supporting member for supporting the clamper and a taper at one end. A first engaging portion, a clamp slider supported on the clamp plate so as to be slidable along the moving direction of the slider, and provided on the clamp slider, and engaging with a part of the slider. A second engaging portion for slidingly moving the clamp slider in the same direction as the slider, and a third engaging portion provided on the clamp slider with a taper corresponding to the taper of the first engaging portion. And a taper surface of the first engaging portion and the third engaging portion contact each other in a moving range of the clamper from the first position to the second position. Optical disk apparatus characterized by comprising engaging while. 5. The optical disk device according to claim 1, wherein a first urging unit that urges the slider in a direction in which the slider descends toward the mechanical chassis, and the shutter lever opens the shutter. A second urging means for urging the slider in a direction opposite to the rotating direction of the optical disk, and the slider is moved toward the surface of the optical disk by the force of the first urging means before the cartridge is loaded. On the other hand, the force of moving in the horizontal direction and the vertical direction is restricted by the rotational force of the second urging means, and the slider side engagement is performed when the cartridge is inserted into a predetermined position in the cartridge holder. The optical disc device is configured so that the regulation is released by the engagement relationship between the portion and the lever-side engagement portion. 6. The optical disk device according to claim 1, wherein the slider is connected to an eject button.