JPH11185357A - Optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive the reduction of a number of parts of a conveying mechanism, its simplification and the reduction of a cost and to improve reliability. SOLUTION: A cartridge conveying mechanism 25 is composed of a picker 30 and a guiding member 31 for guiding the picker 30. The picker 30 is provided with a lug member 36 and is moved by a horizontally driving motor 32. The guiding member 31 is vertically moved along a guide shaft 56 by a vertically driving motor 33. The guiding member 31 has two guide tracks 45, 46 and opens/closes the lug member 36 by the tracks. The guide track 45 is composed of a groove formed by a rail 42 and a partition wall 53 and the outside surface of the rail 42 forms the track surface of a roller 48 of the lug member 36. The guide track 46 is composed of a groove formed by the partition wall 53 and an outside wall 55 and the outside surface of the partition wall 53 forms the track surface of the roller 48 of the lug member 36. A track change lever 47 for changing over the track of the lug member 36 is provided in the connecting part R of both guide tracks 45, 46.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an optical disk apparatus using an information recording medium such as a magneto-optical disk or an optical disk.

[0002]

2. Description of the Related Art Conventional optical disk devices using optical disks include a so-called stand-alone type optical disk device,
There are two types, a music box type. The former is provided with one optical disk drive (hereinafter, referred to as a drive), mounted with an optical disk cartridge (hereinafter, referred to as a cartridge) having an optical disk therein, and connected to a host computer as computer memory. is there. On the other hand, the latter is mainly used when a large-capacity memory is required, and is equipped with a plurality of drives and simultaneously accommodates a plurality of optical discs. Recording, reproduction, or erasure of information is performed by being mounted on a drive.

Recently, a device has been proposed in which a large amount of information is stored in a plurality of optical discs at a high transfer rate and a plurality of discs can be carried as a set (Japanese Patent Application No. 8-249998).

FIG. 16 shows a cartridge transport mechanism in a conventional music box type optical disk apparatus.
The transport mechanism 1 includes a picker 3 having two openable and closable claw members 4 for holding a cartridge 2, a horizontal drive motor 5 for moving the picker 3 forward and backward, and a screw rod 6.
A reversing drive motor 7 for reversing the picker 3, a guide shaft 8 a for guiding the picker 3 up and down and a driving screw 8 b, and a vertical drive motor 9 for rotating the screw 8 b to raise and lower the picker 3. , Cartridge 2
And the like, which detects the presence or absence of the sensor. A transmission gear 11 to which rotation of the motor 9 is transmitted is fixed to a lower end of the driving screw 8b. Reference numeral 12 denotes a mounting plate for the picker 3.

[0005]

In the above-described transport mechanism 1 of the conventional optical disk apparatus, the opening and closing of the claw member 4 is performed by using a solenoid and a sensor, so that the number of parts increases and the mechanism itself becomes complicated. At the same time, there is a problem that it is expensive and large.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. It is an object of the present invention to reduce the number of parts of a transport mechanism, to simplify and reduce costs, and to improve reliability. An object of the present invention is to provide an optical disk device having such a configuration.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an optical disk drive capable of loading a plurality of optical disk cartridges having a built-in optical disk, and a magazine loading section for loading a magazine containing the optical disk cartridge. A transport mechanism for transporting the optical disc cartridge in the magazine loaded in the magazine loading unit to the optical disc drive, the transport mechanism comprising a picker having a claw member for sandwiching the optical disc cartridge in the magazine; A drive device for moving the picker and a guide member having two guide tracks for opening and closing the claw member when the picker is moved are provided. In the present invention, since the holding state of the optical disc cartridge is released by opening and closing the claw member by the two guide tracks provided on the guide member, a driving source for opening and closing the claw member is not required. The configuration of the transport mechanism can be simplified.

Further, the present invention is characterized in that a detecting mechanism for detecting the presence or absence of the optical disk cartridge is provided in the transport mechanism. According to the present invention, the presence or absence of the optical disk cartridge can be reliably detected.

Further, the present invention is characterized in that, based on a detection signal from the detecting means, if the operation of inserting and removing the optical disk cartridge by the picker is not performed normally, the operation of inserting and removing the optical disk cartridge is performed again. In the present invention, when the insertion / extraction operation is not performed normally, the insertion / extraction operation is performed again, so that the optical disk cartridge that has been displaced or the like is not erroneously transported to the optical disk drive.

Further, the present invention includes a sensor for detecting a horizontal position of the picker, and a sensor for detecting a vertical position of the guide member, and transmits the horizontal position information of the picker to a picker driving device. The vertical position information of the guide member is obtained from the number of pulses applied to the drive device of the guide member, and the initial value of the pulse count of each drive device corresponds to the output of each sensor. It is characterized by having been set. In the present invention, since the picker and the guide member can be controlled with high positional accuracy, the insertion and removal of the cartridge and the attachment to the optical disk drive are reliable, and the reliability is improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a perspective view showing an embodiment of an optical disk device according to the present invention, FIG. 2 is a sectional view of the device, FIG. 3 is an exploded perspective view of a cartridge transport mechanism, FIG. FIG. 5 is a sectional view of the guide member. In these figures, the optical disk device 20
Has a box-shaped housing 21. Inside the housing 21, a magazine loading portion 23 opened to the front of the housing 21 and loaded with a magazine 22, a plurality of drives 24 which are arranged below the magazine loading portion 23 and stacked and arranged, A transport mechanism 25 for transporting each cartridge 2 in the magazine 22 loaded in the magazine loading section 23 to the drive 24 and the like are provided. Further, a power supply and a circuit section 26 are provided above the magazine loading section 23. Have been. The magazine loading section 23 includes a drawer 27 on which the magazine 22 is installed and which can be pulled out.

In this embodiment, a magazine 22 for accommodating six cartridges 2 and six drives 24 are provided, and six cartridges 2 can be loaded at one time. When the magazine 22 is loaded into the magazine loading section 23 by the tray 27 as shown in FIG. 2, the detecting means detects the loading of the magazine 22, and when the magazine 22 is loaded normally, the transport mechanism 25 removes all the cartridges 2 from the magazine 2.
2 and sequentially conveyed to each drive 24, it becomes possible to record, reproduce and erase information on the optical disk. On the other hand, if it is not loaded normally, it is determined to be inappropriate and the loading is performed again. The loading of the magazine 22
Not only manual but also automatic loading may be used. Next, the configuration and the like of the transport mechanism 25 will be described in detail with reference to FIGS.

3 to 5, the transfer mechanism 25
The picker 30 is interposed between the base plate 43 and the top plate 51 and is capable of moving forward and backward in the insertion / removal direction (horizontal direction) indicated by an arrow in FIG. 4 of the cartridge 2, and two pickers 30 having different lengths for guiding the picker 30. The cartridge transport unit 25A includes a guide member 31, a horizontal drive motor 32 for moving the picker 30 forward and backward, and the like, and a vertical drive motor 33 for lifting and lowering the cartridge transport unit 25A.

The picker 30 has a claw mounting member 35 formed in a U-shape in a plan view, and is provided so as to face each corner of the claw mounting member 35 to hold the cartridge 2.
It is composed of two claw members 36, a light shielding plate 37 movably attached to the claw attachment member 35 in the insertion and removal direction of the cartridge 2, a plurality of rollers 38, and the like. Claw member 36
Has an L-shape in plan view, and has a base end at the claw mounting member 35.
It is rotatable in a horizontal plane by being pivotally supported by a pin 39 projecting from the upper surface of the. The tip of the cartridge 2 integrally has a claw 36 a which is engaged with a recess 40 called a clipper slot provided on the side surface of the cartridge 2, and is closed by a torsion spring 41, that is, the claw 36 a is engaged with the recess 40. It is urged in the direction to match.

The light shielding plate 37 is provided with two detecting pieces 37a, which operate two sensors 61, 62 described later, respectively.
37b, and is urged forward by a spring (not shown). Therefore, when the picker 30 moves forward and is pressed against the cartridge 2, it moves backward. The roller 38 is connected to the claw mounting member 3.
5, side plates 35b, 35 erected on both sides 35a, 35a.
c, each of which rolls on a rail 42 provided on the upper surface of the guide member 31.

Since the guide member 31 is formed substantially symmetrically except for its length, it will be described together with the same reference numerals. The guide member 31 is formed so as to extend in the moving direction of the picker 30, and is attached on the base plate 43 so as to be parallel at a predetermined interval. On the upper surface side of the guide member 31, there are provided the rail 42 and a support portion 44 extending long along the rail 42 and movably supporting the lower side edge of the cartridge 2. The support 44 is provided inside the rail 42. On the other hand, outside the rail 42, two walls having different heights, that is, a partition wall 53 and an outer wall 55 are protruded in parallel with the rail 42. The groove between the rail 43 and the partition wall 45 and the groove between the partition wall 53 and the outer wall 55 form guide tracks 54 and 46, respectively, and the outer surface of the rail 43 and the partition wall 5 are formed.
3 are the raceway surfaces 45a, 46 of the rollers 48 to be described later.
a are formed respectively. The rail 42 and the partition wall 53 are set at substantially the same height and lower than the outer wall 55 as shown in FIG.

The two guide tracks 45 and 46 open and close the claw member 36 when the picker 30 removes the cartridge 2 from the magazine 22 and when the cartridge 2 is returned to the magazine 22 or mounted in the drive 24. It is used for That is, when the cartridge 2 is extracted from the magazine 22, the track surface 45 a of the inner guide track 45 guides the roller 48 provided at the bent portion of the claw member 36 to engage the claw member 36 with the concave portion 40 of the cartridge 2, When the cartridge 2 is returned to the magazine 22 or mounted in the drive 24, the track surface 46a of the outer guide track 46 guides the roller 48 and holds the claw member 36 in an open state. Two guide tracks 45,
46 communicate with each other at the rear ends thereof.
Track change lever 47 for changing the track through which 6 passes
Is provided.

The track surface 45a of the inner guide track 45
At the front end portion, a slope portion 50 inclined outward and a straight portion 50a following the slope portion 50 are provided. On the other hand, at the front end of the partition wall 53, a concave portion 51 is formed corresponding to the linear portion 50a. The inclined portion 50 is provided for opening the claw member 36 immediately before holding the cartridge 2, and the concave portion 51 is for releasing the roller 48 at that time. The claw member 36 reciprocates along the upper surface of the rail 42, at which time the roller 48 moves along the outer surface of the rail 42, that is, the track surface 45a, or the outer surface of the partition wall 53, that is, along the track surface 46a. To roll. It should be noted that the guide tracks 45 and 46 are provided with the claw members 36 every one reciprocation.
Switch orbits. The change of the trajectory of the claw member 36 will be described later in more detail. The top plate 51 is provided on the outer wall 5.
The cover 5 covers the picker 30 and the guide member 31 by being fixed to the upper surface of the pickup 5.

The track change lever 47 is provided with a rear end side rotatably supported in a horizontal direction in a communicating portion R of the guide tracks 45 and 46, and has a triangular projection 47a in a plan view at a front end side. It has integrally. And the torsion spring 5
By giving the return behavior in the inward direction (the direction of arrow B in FIG. 4) by 2, the normal stopper 54 (see FIG. 8) is pressed and regulated. Track change lever 47
Is lower than the height of the rail 42 and the partition wall 53, and the height of the convex portion 47a is substantially equal to the height of the rail 42 and the partition wall 53. This is for bringing the roller 48 into contact with the side surface of the projection 47a.

The base plate 43 is mounted on two guide shafts 56, 56 erected vertically in the housing 21, and slide bearings 5.
It is vertically movably held via 7, 57. The base plate 43 includes the two guide members 31, the horizontal drive motor 32 for moving the picker 30 forward and backward, and a rotation transmission mechanism 60 thereof, and a photoelectric sensor for detecting the horizontal origin position of the picker 30. 61, a sensor 62 for detecting the presence / absence of the cartridge 2, a photoelectric sensor 63 for detecting a vertical origin position of the base plate 43 itself, and the like. As the horizontal drive motor 32, a stepping motor is used. As the rotation transmitting mechanism 60, a toothed belt 66 stretched between two front and rear pulleys 65, 65 is used, and the claw mounting member 35 of the picker 30 is fixed to the belt 66 via a mounting plate 67. I have. Therefore, when the belt 66 is run by driving the horizontal drive motor 32, the picker 30
Forward or backward along the upper surface of the.

Behind the base plate 43, a mounting plate 70
The vertical drive motor 33 for raising and lowering the cartridge transport section 25A and its rotation transmission mechanism 72 are mounted on the mounting plate 70. As the vertical drive motor 33, a stepping motor is used. The rotation transmission mechanism 72 includes two pulleys 73 and 7 similarly to the rotation transmission mechanism 60 of the horizontal drive motor 32.
3 and a toothed belt 74 stretched between these pulleys
A bracket 76 provided on the base plate 43 is fixed to a plate 75 fixed to the belt 74. Therefore, when the vertical drive motor 33 is driven to run the belt 74, the cartridge transport unit 25A
Moves up and down along two guide shafts 56.

Of the two pulleys 73, 73, the lower pulley 73 is fixed to the output shaft of the vertical drive motor 33, and the upper pulley 73 has a brake unit 77.
Is provided. The brake unit 77 is used to secure the positional accuracy of the guide member 31. The brake unit 77 does not act on the belt 74 at all when the power is supplied, and brakes the belt 74 when the power is not supplied to the guide member 31 to thereby control the position of the guide member 31. Prevent descent due to its own weight. In addition, the guide member 31 functions so as not to move even when there is no power supply to the apparatus.

2 and 3, below the base plate 43, a reaction force generating mechanism 28 is provided. The reaction force generating mechanism 28 includes four connecting members 8 connected in series and flexibly by three connecting pins 81.
3 to 86 and a torsion coil spring 87 for urging the intermediate connecting members 84 and 85 in the direction in which they open their legs. By generating a reaction force that balances the weight of the cartridge transport unit 25A. The cartridge transport section 25A is stably held at an arbitrary height position. The connecting member 83 at the upper end is fixed to the lower surface of the base plate 43, and the connecting member 86 at the lower end is fixed to a frame 88 inside the housing. The reaction force generating mechanism 28 is provided at a position where it does not come into contact with the drive 24 when bent.

Next, the operation of the transport mechanism 25 having the above configuration will be described with reference to FIGS. When the apparatus is turned on and the magazine 22 is loaded in the magazine loading section 23, the detecting means detects the magazine 22 and sends a detection signal to the control section (CPU). CPU is Magazine 22
When it is determined that is loaded normally, a drive signal is sent to the transport control circuit of the transport mechanism 25. As a result, the horizontal drive motor 32 is first driven to move the picker 30 toward the horizontal position origin sensor 61. A predetermined count value is set in the pulse counter of the horizontal drive motor 32 with the moment when the detection piece 37a of the light shielding plate 37 crosses the horizontal position origin sensor 61 as a trigger. Then, the guide member 3
1 is moved toward the vertical position origin sensor 63.
A predetermined count value is set to a pulse counter of the vertical drive motor 33 at the moment when the vertical position origin sensor 63 crosses the edge of the vertical light shielding plate 90 provided in the housing 21 as a trigger. Thereafter, the horizontal and vertical movement positions are controlled by counting the pulses.

Next, the operation of taking out the cartridge 2 in the magazine 22 by the transport mechanism 25 will be described with reference to FIGS. FIG. 4 shows a state where the picker 30 is at the horizontal origin position. In this state, the pawl member 36 is located at the communicating portion R between the guide tracks 45 and 46, and the roller 48 is in the inner guide track 45 and the outer surface of the rail 42, that is, the track surface 45a ( 5). Therefore, when the picker 30 is moved forward, the roller 48 moves in the guide track 45 along the raceway surface 45.
The robot advances toward the cartridge 2 along a. When the roller 48 moves forward by a certain distance, the roller 48
In order to ride on the inclined portion 50 of 5a, the claw member 36 opens against the torsion spring 41, and the claw 36a contacts the side surface of the cartridge 2 (FIG. 7). Roller 4 forward
When 8 moves to the linear portion 50a, the claw 36a falls into the concave portion 40 of the cartridge 2 as shown in FIG. 8, and the cartridge 2 is held between the two claw members 36. The forward distance of the picker 30 at this time is controlled with high accuracy by the number of pulses applied to the horizontal drive motor 32. When the cartridge 2 is sandwiched by the claw members 36, the cartridge 2 moves integrally with the picker 30. At this time, since the light shielding plate 37 is pressed by the cartridge 2, it moves rearward against the urging means. After the picker 30 is moved forward by a predetermined distance and the claw member 36 clamps the cartridge 2, the horizontal drive motor 32 is rotated backward to move the picker 30 backward. When the picker 30 retreats, the roller 48 of the claw member 36 moves along the guide track 45, and when the picker 30 retreats to near the substantially horizontal origin position, as shown in FIG. It touches and presses it.
Therefore, the track change lever 47 is connected to the torsion spring 5.
2 to allow the roller 48 to pass therethrough. Then, when the roller 48 passes through the convex portion 47a, the roller 48 returns to the original state by the returning force of the torsion spring 52 as shown in FIG.

When the picker 30 retreats to the horizontal origin position in this way, the light-shielding plate 37 retreats by the amount pressed by the cartridge 2, so that the detection piece 37b is applied to the cartridge presence / absence sensor 62 to block the light. Thus, the presence or absence of the cartridge 2 is indirectly detected. If the claw member 36 does not hold the cartridge 2, the light-shielding plate 37 does not move backward, so that the sensor 62 cannot detect the presence of the detecting piece 37 b, and the CPU detects the presence of the detecting piece 37 b based on the signal. It is determined that there is no retry, and the picker 30 is caused to perform a retry operation for retrieving the cartridge 2 again.

If it is determined that the cartridge 2 has been normally removed from the magazine 22, the picker 30 is lowered together with the guide member 31 while maintaining the state of FIG. 2 is attached to the drive. In this way, all the cartridges 2 are
, The drives 24 are sequentially ready. When the mounting of all the cartridges 2 is completed and it is confirmed that the cartridges 2 are normally mounted, the recording, reproduction, and erasing of information on the optical disk are enabled. Picker 3
The vertical movement of 0 is performed by moving the guide member 31 in the vertical direction by the motor 33 for vertical drive. The position control in the vertical direction is performed by the number of pulses applied to the motor 33 for vertical drive.

After vertically moving the picker 30 together with the guide member 31, when the picker 30 is advanced, the claw member 3
The roller 6 opens outward against the torsion spring 41 when the roller 48 abuts against the convex portion 47a of the track change lever 47 from the rear as shown in FIG. As a result, the pawl 36a comes off the concave portion 40 of the cartridge 2, and the holding state of the cartridge 2 is released. When the roller 48 further advances, the roller 48 passes through the outer side of the convex portion 47a, enters the outer guide track 46, and moves along the track surface 46a. For this reason, the cartridge 2 advances integrally with the picker 30 while being released from the claw member 36. When the picker 30 advances a predetermined distance (FIG. 12) and the roller 48 moves to the front end position of the guide track 46 as shown in FIG. 13, the cartridge 2 is mounted on the predetermined drive 24 or stored from the designated entrance of the magazine 22. You. Thereafter, when the picker 30 is retracted, the cartridge 2 on the picker 30
, So it remains in the drive or magazine. The pawl member 36 is provided with guide tracks 45 and 46.
When the roller 48 returns to the position of the communication portion R, the roller 48 passes through the convex portion 47a of the track change lever 47, and is rotated inward by the force of the torsion spring 41 to position the roller 48 in the guide track 45. The state returns to the state shown in FIG.

When the cartridge 2 is normally inserted into the drive 24 or the magazine 22, the light shielding plate 37 is released from the cartridge 2 and returns to the original position. The signal cannot be detected, and the CPU determines from the signal that the cartridge 2 is not present. When the cartridge 2 is not inserted normally, the operation of inserting the cartridge 2 is performed again.

FIG. 14 is a flowchart for loading a cartridge. First, in step 100, the picker 30
Is moved to the magazine 22, the claw member 36 picks up the cartridge 2 in the magazine 22 (Step 101). The removed cartridge 2 is detected by the above-described sensor 62 (Step 102), and in some cases, the picker 30 moves to the designated drive 24 (Step 103), and the cartridge 2 is mounted (Step 10).
4). At step 105, the drive 24 detects whether or not the cartridge 2 has been received. If the cartridge 2 has been received normally, the mounting operation of the cartridge 2 is terminated. If not, the retry is performed at step 106, and a predetermined number of retries are performed. If it is determined that the cartridge 2 is not mounted, the CPU processes the error as an error by transmitting an error signal (step 107), and terminates the loading of the cartridge.

In step 102, if the cartridge 2 is not detected, a retry is performed in step 108. If the retry is successful, the process proceeds to step 103.
Return to On the other hand, if it is determined that the cartridge 2 cannot be taken out even after the predetermined number of retries, the CPU
Is processed as an error by transmitting an error signal (step 109), and the cartridge loading is terminated.

FIG. 15 shows a flowchart of the cartridge ejection. In step 130, the picker 30 is moved to the designated drive 24 based on a command from the CPU. Next, when the CPU issues an instruction to eject the cartridge 2 to the drive 24, the drive 24
Is discharged (step 131), and the picker 30 receives it (step 132). If not, try again. It is determined whether or not the picker 30 has received the cartridge 2 (step 133). If it is determined that the cartridge 2 has been received, the picker 30 is moved to the designated entrance of the magazine 22 in step 134, and the cartridge 2 is stored in the magazine 22 (step 133). 135), the cartridge ejection ends. On the other hand, when the cartridge 1 has not been received, a retry is performed according to a command from the CPU (step 136), and if the retry succeeds, the process returns to step 134. If it is determined that the cartridge 1 cannot be received even after performing the retry a predetermined number of times, the CPU processes the error as an error by transmitting an error signal (step 137), and ends the cartridge ejection.

In the present invention, two guide tracks 45,
Since the claw member 36 is opened and closed by the movement of the picker 30 and 46, there is no need to provide a drive source for opening and closing the claw member 36, thereby reducing the number of parts, simplifying the apparatus, and reducing costs. Can be. In addition, stepping motors are used as drive motors for moving the picker 30 and the guide member 31, respectively, and the positional information of the picker 30 and the guide member 31 is obtained from the number of pulses applied to each of the stepper motors. Position control, and the reliability of the device can be improved.

In the above-described embodiment, since a drive motor for reversing the cartridge 2 is not provided, when performing recording, reproduction, and erasing by reversing the cartridge 2,
Once the cartridge 2 is discharged together with the magazine 22 from the magazine loading unit 23 to the outside of the apparatus, the cartridge 2 is removed from the magazine 22 and turned over, and then the magazine 2 is re-exposed.
2 and again load the magazine 22 into the magazine loading unit 2
3 can be loaded.

[0035]

As described above, according to the optical disk apparatus of the present invention, since the claw member is opened and closed by the movement of the two guide tracks and the picker, a driving source for the claw member is unnecessary, and It is possible to reduce the number of points, simplify the transfer mechanism, and reduce the cost, and to provide an optical disk device having a small and highly reliable transfer mechanism.

Further, according to the present invention, the position information of the picker in the horizontal direction is obtained from the number of pulses applied to the drive device of the picker, and the position information of the guide member in the vertical direction is obtained from the number of pulses applied to the drive device of the guide member. Then, the initial value of the pulse count of each drive device is set according to the output of the sensor that detects the horizontal position of the picker and the output of the sensor that detects the vertical position of the guide member. , High-precision position control can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of an optical disk device showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same device.

FIG. 3 is an exploded perspective view of a transport mechanism.

FIG. 4 is a plan view of a transport mechanism.

FIG. 5 is a sectional view of a guide member.

FIG. 6 is a diagram for explaining the operation of the transport mechanism.

FIG. 7 is a diagram for explaining the operation of the transport mechanism.

FIG. 8 is a diagram for explaining the operation of the transport mechanism.

FIG. 9 is a diagram for explaining the operation of the transport mechanism.

FIG. 10 is a diagram for explaining the operation of the transport mechanism.

FIG. 11 is a diagram for explaining the operation of the transport mechanism.

FIG. 12 is a diagram for explaining the operation of the transport mechanism.

FIG. 13 is a diagram for explaining the operation of the transport mechanism.

FIG. 14 is a flowchart of cartridge loading.

FIG. 15 is a flowchart of cartridge ejection.

FIG. 16 is a perspective view of a conventional transport mechanism.

[Explanation of symbols]

Reference numeral 2 denotes a disk cartridge, 22 denotes a magazine, 23 denotes a magazine loading unit, 24 denotes an optical disk drive, 25 denotes a transport mechanism, 25A denotes a cartridge transport unit, and 30 denotes a picker.
31 guide member, 32 horizontal drive motor, 33 vertical drive motor, 36 claw member, 37 light blocking plate, 43 base plate, 45, 46 guide track, 45a, 46a track surface, 47 Orbit change lever, 61: Horizontal position origin sensor, 62: Cartridge presence sensor, 63: Vertical position origin sensor.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ikufumi Honda 1-167 Higashi-Ome, Ome-shi, Tokyo 1 Nippon Chemi-Con Corporation

Claims (4)

[Claims] An optical disk drive capable of loading a plurality of optical disk cartridges containing an optical disk, a magazine loading section loaded with a magazine for storing the optical disk cartridge, and an optical disk in the magazine loaded in the magazine loading section A transport mechanism for transporting the cartridge to the optical disk drive, wherein the transport mechanism comprises a picker having a claw member for holding the optical disk cartridge in the magazine, a driving device for moving the picker, and An optical disc device comprising: a guide member having two guide tracks for opening and closing the claw member. 2. The optical disk device according to claim 1, wherein a detecting means for detecting the presence or absence of the cartridge is provided in the transport mechanism. 3. The optical disk device according to claim 2, wherein the insertion / removal operation is performed again when the insertion / removal operation of the optical disk cartridge by the picker is not normally performed based on the detection signal from the detection means. Optical disk device. 4. The optical disk device according to claim 1, further comprising a sensor for detecting a position of the picker in a horizontal direction, and a sensor for detecting a position of a guide member in a vertical direction, wherein the picker has a horizontal position. Position information is obtained from the number of pulses applied to the drive of the picker, and the vertical position information of the guide member is obtained from the number of pulses applied to the drive of the guide member. An optical disk device, wherein a value is set corresponding to an output of each of the sensors.