JPH063662B2 - Optical disk drive - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an optical disk drive device for reading or writing a record on an optical disk such as a compact optical disk, and more particularly to an optical disk drive device. The present invention relates to an optical disk drive device having a movable tray that is stored.

[Prior Art] Recently, there is a tray for storing an optical disc, and the tray is moved until the optical disc is located above the table.
Although an optical disk drive device has been developed which performs recording / reading / writing of an optical disk via a laser beam,
In the conventional optical disk drive device, the operation of holding the tray immovable after reading the predetermined record and moving it to the writing position, and lowering the optical disk stored in the tray onto the above table, Since various interlocking operations such as rotatably gripping operations are required, if each of these operations is not performed reliably, the optical disk cannot be properly gripped and rotated, and the optical disk itself may be damaged. However, there is a possibility that the recording or reproducing operation may be adversely affected.

The present invention has been made in view of such circumstances in the prior art, and an object thereof is to ensure that a locking operation at a predetermined position of a tray and then grip an optical disk can be performed, and an optical disk can be damaged. An object of the present invention is to provide an optical disk drive device capable of preventing obstacles in advance.

[Means for Solving the Problems] In order to achieve this object, the present invention provides a table on which an optical disc is placed and which rotates the optical disc, and a wheel which cooperates with the table to rotatably grip the optical disc. A gripping mechanism for relatively moving the wheel and the table in a contacting / separating direction, and a first drive source for driving the gripping mechanism in a main body, and the optical disc is accommodated inside and outside the main body. A tray that is movable in the direction, a second drive source that drives the tray, and the second drive source to a predetermined position where the optical disc can be held between the table and the wheel. Positioning means for restricting movement of the tray when the tray moves, tray locking means for immovably locking the tray at the predetermined position, and tray lock An optical disk drive having a detection means for detecting the operation of the means, wherein the second drive source moves the tray to a predetermined position where the optical disk can be held between the table and the wheel. At that time, the movement of the tray is restricted by the positioning means, the tray is locked at the predetermined position by the tray lock means, and the detection signal of the detection means for detecting the operation of the tray lock means is used. Based on this, the first drive source is operated to drive the gripping mechanism.

[Operation] By the above means, when the tray moves to a predetermined position where the optical disk can be held between the table and the wheel, the positioning means restricts the movement of the tray, and the tray is locked at the predetermined position by the tray lock means. It locks immovably, and the first drive section is operated based on the detection signal of the detection means for detecting the operation of the tray lock means to drive the gripping mechanism to perform recording / reproduction of the optical disk.

[Embodiment] An embodiment of the optical disk drive device of the present invention will be described below with reference to FIGS. 1 to 9 (a), (b) and (c).

FIG. 1 is a plan view showing the state before the optical disc device, FIG. 2 is a rear view showing the state before the optical disc device, and FIG. 3 is a plan view showing the state when positioning the tray in the main body.

In these figures, 1 is a chassis forming the main body, 2
Is an optical disc, for example, a compact optical disc (shown in FIG. 3), 3 is a tray that can be moved toward and away from the chassis 1, and is a circular recess 4 in which the compact optical disc 2 can be stored. And a notch 4'to which a table and a spindle, which will be described later, and a laser head (not shown) can be inserted. Reference numerals 5 and 6 are mounted on both ends of the tray 3, and slide rails slidable on the chassis 1, and 7 are mounted on one slide rail 6,
This is a stopper for positioning the tray 3 in the chassis 1. 8 is a slide rail, a rack attached to 6,
Reference numeral 9 shown in FIG. 2 denotes gears 10, 11, which engage with the rack 8,
Reference numeral 12 is also a gear, and the gear 10 has a small diameter gear portion 13 that engages with the gear 9 and a large diameter gear portion 14, and the gear 11 has a small diameter gear portion that engages with the large diameter gear portion 14 of the gear 10. 15 and a large-diameter gear portion 16 are provided, and the large-diameter gear portion 16 of the gear 11 is provided.
Engages with the gear 12, and the gear 12 is mounted on the output shaft of the motor 17.

The slide rails 5, 6 described above, the rack 8, the gears 9, 1
0, 11, 12 and the motor 17 constitute a tray moving means for moving the tray 3.

Reference numeral 18 is a cam, and this cam 18 is, as shown in FIGS. 4 (a) and 4 (b), a plate-shaped first cam portion 1 formed in the central portion.
9, a second cam portion 20 formed on the upper portion of the first cam portion 19, and a gear portion 21 formed on the lower portion of the first cam portion 19, and fixed to the chassis 1. Axis 2
It is rotatably attached to 2. The first cam portion 19 has a large-diameter portion 23, a small-diameter portion 24, a stopper portion 25, and a recess 25a that is continuous with the stopper portion 25.
0 has a low portion 26 and a high portion 27 having different height positions, and the cam characteristic of the second cam portion 20 is set as shown in FIG. 4 (c), for example.

The gears 28, 29, 30, and 31 shown in FIG. 2 include a small-diameter gear portion 32 that engages with the gear portion 21 of the cam 18 and a large-diameter gear portion 33. Gear 2
8 has a small diameter gear portion 34 that engages with the large diameter gear portion 33, and a large diameter gear portion 35, and the gear 30 has a small diameter gear portion 36 that engages with the large diameter gear portion 34 of the gear 29 and a large diameter gear portion 35. A gear portion 37, the gear 31 engages with the large-diameter gear portion 37 of the gear 30,
It is mounted on the output shaft of the motor 38.

These gears 28, 29, 30, 31 and the motor 38
Constitutes a cam drive means for rotating the cam 18.

Also, 39, 40 and 41 are levers, of which lever 3
A roller 43 is rotatably mounted on a shaft 42 fixed to the chassis 1, and is engaged with the first cam portion 19 of the cam 18.
And the slide rail 5 as illustrated in FIGS. 8 (c) and 8 (d).
The tray lock / release means for locking the tray 3 immovably in conjunction with the rotation of the cam 18 and releasing the lock. I am configuring.

The lever 40 has a roller 47 that is rotatably mounted on a shaft 46 fixed to the chassis 1 and that engages with the first cam portion 19 of the cam 18, and the lever 41 rotates about the shaft 46. The roller 48 that is movably mounted and that engages with the first cam portion 19 of the cam 18 and the switches 49 and 50 are turned on and off.
It has a possible overhang 51.

In addition, 52 and 53 are switches arranged in parallel with the switches 49 and 50, and these four switches 49, 50, 52 and 5 are provided.
3 is held by a bracket 54 fixed to the chassis 1. The above-mentioned stopper 7 is engageable with the stopper 54a formed in the bracket 54 as illustrated in FIGS. 8 (b) to (d), and the switch 53 is turned ON-OF.
F is possible.

Reference numeral 55 shown in FIGS. 1 and 3 is a spring having one end attached to the lever 39 and the other end attached to the lever 40.
3 and 47 are engaged with the first cam portion 19 so that the lever 3
Energize 9,40. 56 is also a spring, one end of which is engaged with the lever 41 and the other end of which is engaged with a rising portion 57 formed on a side portion of the bracket 54, so that the roller 48 is engaged with the first cam portion 19. Is urged.

Reference numeral 58 denotes a lever capable of turning the switch 52 on and off, which is rotatably mounted on a shaft 59 fixed to the chassis 1. Reference numeral 60 denotes a connecting rod whose one end is connected to the lever 39 so as to be relatively rotatable and whose other end is connected to the lever 58 so as to be relatively rotatable.

Reference numeral 61 is a slide support slidably provided on the slide rail 5, and as illustrated in FIGS. 5 to 7, an overhanging portion 62 with which the lever 40 described above can be engaged,
The spring engaging portion 63, the two inclined holes 64 and 65, and the elongated holes 66 and 67 extending in the horizontal direction are provided. It is to be noted that reference numerals 68 and 69 shown in FIGS. 5 to 7 are shafts fixedly mounted on the slide rail 5 and are engaged with the respective elongated holes 66 and 67 so as to be relatively movable. 70 springs, one end of which is engaged with the spring engagement portion 63 of the slide support 61, and the other end of which is engaged with a protrusion portion 71 which is fixed to the slide rail 5.

Reference numeral 72 denotes a disk support, which is a plate-shaped substrate 73 as shown in FIG. 2, rising portions 74, 75, and 76 that are formed by bending three portions on the side of the substrate 73, and project on the substrate 73. It has three support parts 77, 78, 79 which are provided and can support the compact optical disc 2, and the rising parts 74, 75.
The shafts 80 and 81 fixed to are engaged with the inclined holes 64 and 65 of the slide support 61 so as to be relatively movable. Further, the three support portions 77, 78, 79 can project from the holes 4a, 4b, 4c formed in the circular recess 4 of the tray 3.

Reference numerals 82 and 83 shown in FIG. 2 are connecting links, of which one end is relatively rotatably engaged with a shaft 84 fixed to the chassis 1 and the other end is relatively concave with respect to the shaft 80. The connecting link 83 is rotatably engaged, and one end of the connecting link 83 is relatively rotatably engaged with a shaft 85 provided individually in the chassis 1, and the other end of the connecting link 83 is relatively engaged with the rising portion 76 of the substrate 73 via the shaft 86. It is rotatably engaged.

In addition, 87 shown in FIGS. 1 to 3 and 9 (a) is a table on which the compact optical disc 2 can be mounted, 88 is arranged at the central position of this table 87, and has a taper on the periphery, The table 87 is a spindle capable of sinking with respect to the table 87, and the table 87 is rotated by a motor 89 shown in FIG. Reference numeral 90 shown in FIG. 2 is a carriage for movably holding a laser head (not shown), which is arranged so as to be movable in the radial direction of the compact optical disk 2.

The lever 40, the slide support 61, the spring 7 described above
0, a disk support base 7 having support portions 77, 78, 79
2 and the like move the compact optical disc 2 housed in the tray 3 in the direction of the table 87 in conjunction with the rotation of the cam 18.
And a disk elevating means for elevating from the table 87.

Further, 91 shown in FIGS. 1, 3, and 9 (a), (b), and (c) is arranged above the table 87 so as to face the compact optical disc 2. A wheel 92 that can be contacted is an arm that holds the wheel 91 at its tip, and the unend portion of this arm 92 is rotatably supported by a bracket 93 fixed to the chassis via a shaft 94. Reference numeral 95 denotes a lever, one end of which is rotatably supported by a rising portion 96 formed on the arm 92 via a shaft 97, and the other end of which has a roller 98 which engages with the second cam portion 20 of the cam 18 described above. However, a bent portion 99 that can come into contact with the surface of the arm 92 is provided on one side portion. 100 is the first spring,
The upper end is engaged with the lever 95, and the lower end is engaged with the hanging portion 101 formed at the unend portion of the arm 92, and urges the lever 95 and the arm 92 to engage with each other. 102 is the second
Of the spring, one end of which is attached to the end of the lever 95 on the roller 98 side, and the other end of which is the rising portion 57 of the bracket 54 described above.
And the roller 98 of the lever 95 is attached to the second cam portion 2
It is biased to engage 0. Table 8 above
7, the wheel 91, the arm 92, the lever 95, the first spring 100, the second spring 102, etc.
The disk gripping / releasing means is configured to rotatably grip and release the compact optical disk 2 housed in the tray 3 in conjunction with the rotation of the disk.

Reference numeral 103 shown in FIG. 1 and FIG. 3 is a switch that can be turned on and off by the stopper 7. For example, when the switch 103 is turned off, the motor 17 is driven.

The operation of the embodiment thus configured is as follows.

(1) [Before Storage of Compact Optical Disk 2 in Tray 3] As shown in FIG. 1, the tray 3 is arranged outside the chassis 1, and the stopper 7 to which the slide rail 6 is attached.
Contacts the switch 103, which causes the switch 103 to be in the ON state, for example. Also, the cam 18
Have the positional relationship shown in FIG.

At this time, the roller 43 of the lever 39 engages with the small diameter portion 24 of the first cam portion 19, while the slide rail 5 is located at a position away from the lever 39, so that the tray 3 is unlocked. It is in a state where it can move freely in one direction of chassis.

Also, the roller 47 of the lever 40 engages with the stopper portion 25 of the first cam portion 19, that is, engages with the small diameter portion 24 of the first cam portion 19, while the slide support 61 moves away from the lever 40. Therefore, as shown in FIG. 5, the shafts 68 and 69 fixedly mounted on the slide rail 5 are located at the left ends of the elongated holes 66 and 67 of the slide support 61 in the figure, and the substrate of the disk support base 72. Rising portion 74 of 73,
Shafts 80 and 81 fixed to 75 are slide supports 61
Is located at the upper end of the inclined holes 64, 65 of the disk support base 72, so that the disk support base 72 is supported at the upper position.
7, 78, 79 are holes 4a, 4 of the circular recess 4 of the tray 2
It is in a state of protruding from b and 4c.

Further, as shown in FIG. 8 (a), the roller 98 is engaged with the lower portion 26 of the second cam portion 20, and accordingly, FIG.
As shown in (a), the lower end of the bent portion 99 of the lever 95 is kept in contact with and engaged with the surface of the arm 92 by the force of the first spring 100, and the arm 92 is moved from the table 87. The wheel 91 is at a height far away from the table 87, and the wheel 91 held by the arm 92 is also at a height far from the table 87.

Further, as shown in FIG. 8 (a), the roller 48 of the lever 41 engages with the large diameter portion 23 of the first cam portion 19, so that the overhanging portion 51 of the lever 41 has the switches 49, 50. Away from, which allows these switches 4
9, 50 are in the OFF state, for example.

Further, as shown in FIG. 8 (a), the lever 58 is in a position in contact with the switch 52 via the connecting rod 60 connected to the lever 39, whereby the switch 52 is turned on, for example. ing.

Further, as shown in FIG. 8 (a), the stopper 7 is not in contact with the switch 53, so that the switch 53 is in the OFF state, for example.

(2) [Storing the compact optical disc 2 in the tray 3 and positioning the compact optical disc 2 in the chassis 1] In the state of the above (1), the circular concave portion 4 of the tray 3 is formed.
When the compact optical disc 2 is housed on the supporting portions 77, 78, 79 protruding inward, and the tray 3 is slightly pushed in the direction of the chassis 1, the stopper 7 is separated from the switch 103, whereby the switch 7 is pushed. 103 is turned off, a drive signal is output from the switch 103 to the motor 17 shown in FIG. 2 via a control device (not shown), the gear 12 rotates, and the gear 9 rotates via the gears 11 and 10, As a result, the rack 8, that is, the slide rail 5 moves in the direction of the chassis 1, and the tray 3 accommodating the compact optical disk 2 moves integrally with the slide rail 5 in the direction of the chassis 1.

Then, as shown in FIG. 8 (b), when the stopper 7 comes into contact with the stopper 54a attached to the bracket 54,
The movement of the stopper 7, that is, the movement of the slide rail 5 is stopped, and the tray 3, that is, the compact optical disc 2 is positioned at a predetermined position in the chassis 1 and faces the spindle 88 formed at the center of the compact optical disc 2. Become. At this time, as shown in FIG. 8 (b), the stopper 7 comes into contact with the switch 53, whereby the switch 53 is turned on, and the motor 17 and the motor 38 are controlled by a controller (not shown). The drive stop signal and the drive signal are respectively output, the drive of the motor 17 is stopped,
The driving of the motor 38 starts.

(3) [Locking of the tray 3 along the road of the cam 18, lowering of the compact optical disc 2 to the table 87, and starting gripping of the compact optical disc 2] FIG. 2 is shown in connection with the driving of the motor 38 described above. The gears 30, 29, 28 rotate and the gear portion 21, that is, the cam 1
8 rotates clockwise in FIG. 8 (b). And cam 18
Is rotated to the state shown in FIG. 8 (c), the roller 43 of the lever 39 engages with the large diameter portion 23 of the first cam portion 19,
That is, the lever 39 rotates in the clockwise direction, whereby the protrusion 45 of the lever 39 penetrates into the notch 44 formed in the slide rail 5, and this protrusion 45 causes the edge of the notch 44 to move. , The slide rail 5, that is, the tray 3 is locked immovably, and the compact optical disc 2 housed in the tray 3 is held so as not to move in the horizontal direction.

At this time, as shown in FIG. 8 (c), the lever 40
The roller 47 of the first cam portion 19 also engages with the large diameter portion 23 of the first cam portion 19, that is, the lever 40 rotates counterclockwise, whereby the lever 40 causes the overhanging portion 6 of the slide support 61.
2 and engages the slide support 6 against the force of the spring 70.
1, the shafts 68 and 69 fixedly mounted on the slide rail 5 are located at the right ends of the elongated holes 66 and 67 of the slide support 61 as shown in FIG. 82, 83 (shown in FIG. 2) rotate, and the shafts 80, 81 fixed to the rising portion 75 of the substrate 73 of the disk support 72 are located at the lower ends of the inclined holes 64, 65 of the slide support 61. As a result, the disk supporting base 72, that is, the supporting portions 77, 78, 79 descends, the central hole of the compact optical disk 2 engages with the taper of the peripheral edge of the spintor 88, and is guided by this taper. Centering is performed for the two rotating systems.

At this time, as shown in FIG. 8 (c), the lever 39
The connecting rod 60 moves in accordance with the rotation of the lever 58, whereby the lever 58 rotates counterclockwise, and the lever 58 and the switch 5 move.
The contact with 2 is released, the switch 52 is turned off, and a gripping (clamping) start signal is output to a control device (not shown), for example.

Then, as shown in FIG. 8 (c), the roller 98 is moved to the second position.
The lever 95 and the arm 92 rotate counterclockwise about the shaft 94 as a fulcrum as shown in FIG. 9 (b) as they engage with the high portion 27 of the cam portion 20 gradually. Therefore, the wheel 91 presses the compact optical disc 2,
The compact optical disc 2 is placed on the table 87, the spindle 88 sinks into the table 87, and the compact optical disc 2 is held between the wheel 91 and the table 87.

(4) [Finishing of Compact Optical Disk 2] When the cam 18 further rotates clockwise from the state of (3) above, the roller 48 concave to the lever 41 moves to the first position as shown in FIG. 8 (d). It engages with the concave portion 25a of the cam portion 19, whereby the overhanging portion 51 of the lever 41 moves the switches 49, 50.
Upon contact, these switches 49 and 50 are turned on, and a gripping (clamping) end signal and a drive signal for the carriage 90 are output from these switches 49 and 50 to a controller (not shown).

Further, as shown in FIG. 8 (d), the roller 98 is connected to the cam 18
As shown in FIG. 9 (c), the shaft 97 is resisted against the force of the spring 100 as it engages with the high portion 27 of the second cam portion 20 of the shaft 97.
With the fulcrum as a fulcrum, the lever 95 slightly rotates counterclockwise in the drawing, and the overstroke of the assembly including the arm 92 and the lever 95 is absorbed.

Then, after the carriage 90 is moved in the radial direction of the compact optical disc 2, the recording of the compact optical disc 2 is read by the laser head (not shown) or the recording of the compact optical disc 2 is performed.

When the compact optical disc 2 is taken out of the tray 3, the cam 18 rotates in the opposite direction to release the grip of the compact optical disc 2.
The compact optical disc 2 is lifted from the table 87 and the tray 3 is unlocked, and then the tray 3 is moved in the direction away from the chassis 1 contrary to the above.

In the embodiment configured as described above, a tray lock including a cam 18 that rotates in association with the positioning operation of the tray 3 in the chassis 1 and a lever 39 that operates in conjunction with the cam 18 is provided. .Release means and lever 4
0, slide support 61, disk raising / lowering means including a disk support base 72 and the like, and disk holding / releasing means including a lever 95, an arm 92, a wheel 91, a table 87, and the like are provided, so that only one cam is used. It is possible to satisfactorily realize the reading of the record of the compact optical disc 2 and the writing of the record to the compact optical disc 2, and thus the number of members can be suppressed, the structure is simplified, and the number of members can be reduced. Can be suppressed and the structure is simple, so the space for arranging the members can be small.

In addition, the recording of the compact optical disc 2 can be read and the writing of the recording to the compact optical disc 2 can be realized particularly through one slide support 61. Therefore, from this also, the number of members can be suppressed, and the structure can be reduced. Can be simplified, and the space for arranging members can be reduced.

Further, the disk gripping / releasing means is a table 87 on which the compact optical disk 2 can be placed, a wheel 91 arranged so as to face the table 87 and capable of contacting the compact optical disk 2, and the wheel 91. Hold and
A rotatable arm 92, and a cam 1 that is rotatable in a direction engaging with the arm 92 and in a direction away from the arm 92.
The lever 95 that rotates in conjunction with the rotation of 8, the first spring 100 that urges the lever 95 and the arm 92 so that the lever 95 and the arm 92 engage, and the lever 95 Since the second spring 102 that biases the lever 95 to engage with the cam 18 is provided, the force of the first spring 100 is applied after the compact optical disc 2 is gripped with a predetermined gripping force. Due to the rotation of the lever 95 that is counteracted, the overstroke of the assembly including the arm 92 and the lever 95 is favorably absorbed, and thus the gripping force of the compact optical disc 2 can be kept constant. .

Further, a switch 53 for outputting a stop signal for driving the motor 17 for moving the tray 3 and a drive signal for the motor 38 for driving the cam 18, an output signal for starting gripping of the compact optical disk 2 by the arm 92, a switch 52, a compact optical disk. Switch 49 which outputs a gripping end signal of 2,
Since the switch 50 that outputs the drive signal for the carriage 90 is held by the single bracket 54 and is arranged at the edge of the chassis 1 in the vicinity of the cam 18, the switch mounting space can be minimized.

[Effects of the Invention] As described above, according to the present invention, the movement of the tray and the disc gripping operation are performed by different drive sources, and the positioning means for positioning the tray at a predetermined position. Since the tray is provided, the tray can be held at a predetermined position even when a drive or the like is applied from the outside before the tray is locked by the tray locking means, and the tray lock operation thereafter can be reliably performed.

Further, since the detection means for detecting that the tray is locked by the tray lock means is provided and the first drive source is operated to drive the gripping mechanism based on the detection signal of this detection means, the tray is reliably Since the optical disk is not gripped until it is locked, mis-clamping of the optical disk does not occur and damage such as damage to the optical disk can be prevented.

[Brief description of drawings]

1 to 9 (a), (b) and (c) are explanatory views showing an embodiment of the optical disk drive device of the present invention, and FIG. 1 is a plan view showing a state before the optical disk is mounted. FIG. 2 is a back view showing a state before mounting the optical disc, FIG. 3 is a plan view showing a state of positioning the tray in the main body, and FIG. 4 (a) is a plan view of a cam provided in this embodiment. Fig. 4 (b) is a longitudinal sectional view of the cam shown in Fig. 4 (a). Fig. 4 (c) is a characteristic diagram of the second cam portion of the cam shown in Fig. 4 (a). 5 to 7 are explanatory views showing the disc elevating means provided in this embodiment. FIG. 5 is a side view showing a state before mounting the optical disc corresponding to FIG. 1, and FIG. 6 is FIG. FIG. 7 is a side view showing a state in which the tray corresponding to the above is positioned in the main body, FIG.
(a), (b), (c), and (d) are explanatory views showing a series of operations accompanying the rotation of the cam provided in this embodiment, and FIGS. 9 (a), (b),
(c) is an explanatory view showing the operation of the disc gripping / releasing means provided in this embodiment. 1 ... Cherashi, 2 ... Compact optical disk, 3 ...
Tray, 4 ... Circular recess, 7 ... Stopper, 18 ...
Cam, 19 ... first cam part, 20 ... second cam part,
21 ... Gear part, 23 ... Large diameter part, 24 ... Small diameter part, 2
5: Stopper section, 26: Low section, 27: High section, 3
9, 40, 41, 58, 95 ... Lever, 43, 47,
48, 49 ... Roller, 49, 50, 52, 53, 10
3 ... Switch, 55, 56, 70 ... Spring, 60 ...
Connecting rod, 61 ... Slide support, 64,65 ... Sloped hole, 66,67 ... Oval hole, 72 ... Disk support base,
73 ... substrate, 74, 75, 76 ... rising part, 77,
78, 79 ... Supporting part, 82, 83 ... Connecting link, 8
7 ... table, 88 ... spindle, 91 ... wheel, 92 ... arm, 99 ... folded portion, 100 ... first
No. 102, second spring.

Claims (1)

[Claims] 1. A table on which an optical disk is placed and which rotates the optical disk, a wheel which cooperates with the table to rotatably hold the optical disk, and the wheel and the table which are relatively moved in a contact direction. A gripping mechanism for driving the gripping mechanism and a first drive source for driving the gripping mechanism, and a tray for storing the optical disk and being movable inward and outward of the main body, and a tray for driving the tray. Positioning means for restricting the movement of the tray when the tray is moved to a predetermined position where the optical disk can be held between the table and the wheel by the second drive source and the second drive source. And an optical disk drive having tray lock means for immovably locking the tray at the predetermined position, and detection means for detecting the operation of the tray lock means. A device for restricting movement of the tray by the positioning means when the tray is moved to a predetermined position where the optical disc can be held between the table and the wheel by the second drive source. Then, the tray is locked immovably by the tray lock means at the predetermined position, and the first drive source is operated based on the detection signal of the detection means for detecting the operation of the tray lock means. An optical disk drive device characterized in that a gripping mechanism is driven.