JP3960248B2 - Disk drive device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, two heads for recording and / or reproducing data are mounted on a base, a two-head disk cartridge corresponding to the two heads, and only one of the two heads. Further, the present invention belongs to the technical field of a disk drive device that can be exchanged with a one-head disk cartridge to record and / or reproduce data.
[0002]
[Prior art]
Conventionally, in an optical disc drive apparatus, two types of optical pickups are mounted on a base, and two types of discs selectively mounted on the base are selectively recorded and / or recorded by one of the two types of optical pickups. Or there is what was made to reproduce (for example, patent documents 1, 2, and 3).
[Patent Document 1]
JP-A-8-221890 [Patent Document 2]
JP-A-9-17155 [Patent Document 3]
JP 2001-39358 A
[Problems to be solved by the invention]
However, two heads are mounted on the base, and two head insertion openings corresponding to the two heads are opened at the bottom, and one of the two heads. Two types of disk cartridges, ie, a one-head disk cartridge having a single head insertion opening corresponding to the above, opened at the bottom, are exchangeably mounted, and these two types of disk cartridges are two heads and one head. A disk drive device that selectively records and / or reproduces by the above has not been developed yet.
[0004]
In this way, a disk drive for selectively recording and / or reproducing with two heads and one head by mounting two types of disk cartridges, a two-head disk cartridge and a one-head disk cartridge, in a replaceable manner In the apparatus, when the one-head disk cartridge is mounted, the bottom of the one-head disk cartridge collides with the other head of the two heads that does not correspond to the opening of the bottom of the one-head disk cartridge. There is a risk of damage to the other head.
[0005]
The present invention has been made to solve the above-described problem, and two heads are mounted on a base, and two head insertion openings corresponding to the two heads are opened at the bottom. Two types of disk cartridges can be exchanged: a two-head disk cartridge and a one-head disk cartridge in which an opening for inserting one head corresponding to one of the two heads is opened at the bottom. In a disk drive apparatus that is mounted and selectively records and / or reproduces these two types of disk cartridges with two heads and one head, one of the two heads is mounted when the disk cartridge for one head is mounted. The other head that does not correspond to the disk cartridge for the head is interfered with the bottom of the disk cartridge for one head. And its object is to provide a disk drive apparatus which can be prevented from being damaged.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a disk drive apparatus according to the present invention has a first and second heads for recording and / or reproducing data mounted on a base, and a disk is accommodated therein, and the first 1. A two-head disk cartridge in which two head insertion openings corresponding to the first and second heads are opened at the bottom; and the first and second heads in which a disk is housed. Discs configured such that two types of disc cartridges, ie, one head disc cartridge in which one head insertion opening corresponding to the first head of the disc is opened at the bottom, are replaceably mounted. In the drive device, of the first and second heads, the second head dedicated to the two-head disk cartridge interferes with the one-head disk cartridge. Means for controlling movement between the retraction position and the data recording and / or reproduction area of the disk of the two-head disk cartridge, and the second head is retracted to the retraction position, The two types of disk cartridges are configured to be replaceably mounted on the base. When the two types of disk cartridges are replaceably mounted, the first type common to these two types of disk cartridges is used. A mode for discriminating whether the two types of disk cartridges are the two-head disk cartridges or the one-head disk cartridges by reading information on the disk with the head of the disk, and the mounted disk cartridge is the 2 When it is determined that it is a head disk cartridge, After the disk cartridge is mounted, the other head retracted to the retracted position is moved into the data recording and / or reproducing area of the disk, and the disk is recorded and recorded simultaneously by the first and second heads. When the disc cartridge mounted is determined to be the one-head disc cartridge, the other head is retracted to the retracted position after the disc cartridge is mounted. And a mode for recording and / or reproducing a disk with only the first head.
[0007]
In the disk drive device of the present invention configured as described above, of the first and second heads, the second head dedicated to the two-head disk cartridge is moved to the retracted position so as not to interfere with the one-head disk cartridge. Two types of disk cartridges, a two-head disk cartridge and a one-head disk cartridge, are configured to be replaceably mounted in a state where they are retracted in advance. In this case, the first common to the two types of disk cartridges is used. When it is determined that the two-head disk cartridge is loaded by reading the upper part of the disk with the head of the second head, the second head is moved from the retracted position into the data recording and / or reproducing area, and the two heads are moved. For recording and / or recording the disk of the recording disk cartridge simultaneously with the first and second heads When it is determined that a one-head disk cartridge has been installed, the second head is retracted to the retracted position and the disk of the one-head disk cartridge is recorded with the first head. And / or to be played back.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to an optical disc drive apparatus will be described with reference to the drawings.
[0009]
[First Embodiment]
First, a first embodiment of an optical disk drive device which is a disk drive device will be described with reference to FIGS.
A spindle motor 3 is mounted almost at the center of the base 2 of the optical disk drive apparatus 1, and the upper end of the spindle motor 3 is configured as a disk table 4.
On the base 2, first and second optical pickups 11 and 12, which are first and second heads, are mounted at both front and rear positions of the spindle motor 3. The first and second optical pickups 11 and 12 have objective lenses 13 and 14 mounted on threads 17 and 18 via biaxial actuators 15 and 16, respectively. The threads 17 and 18 are guide main shafts 19. , 20 and guide countershafts 21 and 22 are configured to be moved in the horizontal direction indicated by arrows a and b and arrows c and d by thread transfer mechanisms 23 and 24, which are head transfer mechanisms. Yes. The thread transfer mechanisms 23 and 24 employ, for example, a system in which a rack 28 fixed to the threads 17 and 18 is driven by a pinion 27 driven by a drive motor 25 via a gear train (gear train) 26. ing.
[0010]
On the other hand, on the base 2 of the optical disc drive apparatus 1, first and second optical disc cartridges 33 in which first and second optical discs 31 and 32, which are recording media, are respectively stored horizontally. , 34 are configured to be replaceable. A substantially circular disk table insertion opening 35 is formed at the center of the bottom 33a of the first optical disk cartridge 33, which is a two-head disk cartridge. First and second optical pickup insertion openings 36 and 37, which are elongated hole insertion openings corresponding to the first and second optical pickups 11 and 12, are formed at both front and rear positions. ing. The front and rear ends of the first and second optical pickup insertion openings 36 and 37 are cut out to the front and rear end portions 33 a and 33 b of the first optical disc cartridge 33.
The bottom 34 a of the second optical disk cartridge 34, which is a one-head disk cartridge, has a substantially semicircular disk table insertion opening 38 formed at the center. Only an optical pickup insertion opening 39 which is a long hole-shaped head insertion opening corresponding to the first optical pickup 11 is formed at the front position.
[0011]
The first optical pickup 11 is in the radial direction of the first and second optical disks 31 and 32 within the data recording and / or reproduction area (operation position) P1 of the first and second optical disks 31 and 32. It is configured to be transferred in the directions of arrows a and b. The second optical pickup 12 is moved in the direction of arrows c and d within the data recording and / or reproducing area (operation position) P2 of the second optical disc 32, and from the data recording and / or reproducing area P2. The second optical disk cartridge 33 is configured to be controlled to move in the directions of arrows e and f to a retracted position P3 set at a position outside the rear end 34c of the second optical disk cartridge 33. For this purpose, the guide main shaft 20 and the guide auxiliary shaft 22 of the sled transfer mechanism 24 for transferring the second optical pickup 12 have the lengths of the guide main shaft 19 and the guide auxiliary shaft of the sled transfer mechanism 23 for transferring the first optical pickup 11. It is set longer than the length of the shaft 21. This thread transfer mechanism 24 is formed as means for controlling the movement of the second optical pickup 12 in parallel in the horizontal direction between the data recording and / or reproduction area P2 and the retreat position P3.
[0012]
Next, the exchangeable mounting operation of the first and second optical disc cartridges 33 and 34 and the movement control operation of the second optical pickup 12 will be described with reference to the flowchart shown in FIG.
First, as shown in FIG. 1 and FIG. 2, FIG. 3 and FIG. 4, respectively, when the first and second optical disc cartridges 33 and 34 are selectively mounted on the base 2 in a replaceable manner, 1. Before the second optical disc cartridges 33 and 34 are vertically lowered onto the base 2 from above and below, the second optical pickup 12 is retracted from the data recording and / or reproducing area P2 to the retracting position P3. (S001) is a condition.
That is, for example, in the case of the front loading type optical disk drive apparatus 1, the first and second optical disk cartridges 33 and 34 are horizontally drawn into the disk loading apparatus (both not shown) from the cartridge insertion port of the front panel. Detecting this, the second optical pickup 12 is moved from the data recording and / or reproducing area P2 to the retracted position P3, and then the first and second optical disc cartridges 33 and 34 are vertically lowered. It is also possible to mount on the base 2.
[0013]
In any case, after detecting the insertion of the first and second optical disc cartridges 33 and 34 into the optical disc drive apparatus 1 (S002), the first and second optical disc cartridges 33 and 34 are vertically lowered. After the mounting on the base 2 is completed, the first and second optical disks 31 and 32 mounted on the disk table 4 are rotationally driven by the spindle motor 3, and the first and second optical disks 31 and 32 are rotated. Information is read by the first optical pickup 11 (S003), and it is determined whether the mounted optical disk cartridge is the first or second optical disk cartridge 33 or 34 (S004).
[0014]
Then, when it is determined that the disc cartridge installed this time is the second optical disc cartridge 34 for one optical pickup (for one head) as shown in FIGS. 3 and 4, the second optical pickup 12 is used. In the state (S005) in which the first optical pickup 11 that is one (first) optical pickup is only retracted (fixed) to the retracted position P3 as it is, only the first optical pickup 11 is within the data recording and / or reproduction area (operating position) P1. The sled transfer mechanism 23 controls the movement of the first optical disc 32 in the directions of arrows a and b (S006), and data is recorded and / or reproduced on the second optical disc 32.
[0015]
On the other hand, when it is determined that the currently installed disc cartridge is the first optical disc cartridge 33 for two optical pickups (for two heads) as shown in FIGS. 1 and 2, the second optical pickup is used. 12 is moved from the retracted position P3 to the data recording and / or reproducing area (operation position) P2 by the sled transfer mechanism 24 in the direction of arrow f (S007). Then, the first and second optical pickups 11 and 12 are moved in the data recording and / or reproduction areas P1 and P2, respectively, by the thread transfer mechanisms 23 and 24 in the directions of arrows a and b that are radial directions of the first optical disc 31. Then, movement control is performed simultaneously in the directions of arrows c and d (S008), and data is recorded and / or reproduced simultaneously on the first optical disk 31 by the first and second optical pickups 11 and 12.
[0016]
According to the first embodiment of the optical disc drive apparatus 1 configured as described above, the second optical disc cartridge 34 which is a one-head disc cartridge in which the second optical pickup insertion opening 37 is not formed. It is possible to prevent the second optical pickup 12 from being damaged by being inadvertently brought into contact with the bottom 34a of the second optical disc cartridge 34 and being damaged when the is mounted. The safety is very high.
[0017]
[Second Embodiment]
FIG. 6 shows a second embodiment of the optical disk drive apparatus 1 in which a sled 18 on which the second optical pickup 12 is mounted is guided by a guide main shaft 20 and a guide sub shaft 22 and an arrow c, The entire thread transfer mechanism 24 for transferring in the d direction is mounted on an elevator 41, and the recording and / or recording of data in the first optical disc cartridge 33, which is in the raised position with respect to the base 2 (not shown), is performed. Alternatively, the movement is controlled in parallel with the vertical directions g and h by the elevating drive mechanism 42 between the reproduction area P2 and the retracted position P3 which is the lowered position.
[0018]
[Third Embodiment]
FIG. 7 shows a third embodiment of the optical disk drive device 1, in which a sled 18 on which the second optical pickup 12 is mounted is guided by a guide main shaft 20 and a guide sub shaft 22, and an arrow c, The entire sled transfer mechanism 24 for transferring in the d direction is mounted on the swing table 44, and data recording in the first optical disk cartridge 33 and / or the swing table 44 is in a raised position with respect to the base 2. The movement control mechanism 45 controls the movement between the reproduction area P2 and the retracted position P3, which is the lowered position, by swinging motion in the directions of arrows i and j that are perpendicular to the swinging fulcrum 46. It is.
[0019]
The disk drive device of the present invention configured as described above is not limited to the above-described embodiment, and various effective changes can be made based on the technical idea of the present invention.
[0020]
【The invention's effect】
In the disk drive device of the present invention configured as described above, of the first and second heads, the second head dedicated to the two-head disk cartridge is moved to the retracted position so as not to interfere with the one-head disk cartridge. Two types of disk cartridges, a two-head disk cartridge and a one-head disk cartridge, are configured to be replaceably mounted in a state where they are retracted in advance. In this case, the first common to the two types of disk cartridges is used. When it is determined that the two-head disk cartridge is loaded by reading the upper part of the disk with the head of the second head, the second head is moved from the retracted position into the data recording and / or reproducing area, and the two heads are moved. For recording and / or recording the disk of the recording disk cartridge simultaneously with the first and second heads When it is determined that a one-head disk cartridge has been installed, the second head is retracted to the retracted position and the disk of the one-head disk cartridge is recorded with the first head. When the disk cartridge for one head is mounted, the disk drive device can record and / or reproduce the disk simultaneously by the first and second two heads. The second head dedicated to two heads is never damaged by the one-head disk cartridge, and the safety is very high.
[0021]
The safety is further improved by retracting the second head to the retracted position before the two types of disk cartridges for one head and two heads are lowered to be mounted on the base.
[0022]
Then, it is determined whether the disk cartridge mounted on the base is a one-head disk cartridge or a two-head disk cartridge, and when the two-head disk cartridge is mounted, the second head is retracted. After the disk is moved to the data recording and / or reproducing area of the disk, the disk is simultaneously recorded and / or reproduced with the first and second heads. Since the disk is recorded and / or reproduced with only the first head while the head is retracted to the retracted position, safety and reliability are very high.
[0023]
The means for controlling the movement of the second head in the horizontal direction between the retracted position and the data recording and / or reproducing area is simply configured by extending the lengths of the guide main shaft and the guide sub shaft of the head transfer mechanism. It is easy to structure and manufacture.
[Brief description of the drawings]
FIG. 1 is a plan view showing a state in which a two-head disc cartridge for explaining a first embodiment of an optical disc drive apparatus to which the present invention is applied is mounted.
FIG. 2 is a partially cutaway side view taken along arrow AA in FIG.
FIG. 3 is a plan view showing a state in which a one-head disk cartridge for explaining the first embodiment of the optical disk drive device to which the present invention is applied is mounted;
4 is a partially cutaway side view taken along the line BB in FIG. 3;
FIG. 5 is a flowchart illustrating an operation mode of an optical disc drive apparatus to which the present invention is applied.
FIG. 6 is a schematic side view for explaining a second embodiment of an optical disc drive apparatus to which the present invention is applied.
FIG. 7 is a schematic side view for explaining a third embodiment of an optical disc drive apparatus to which the present invention is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 is an optical disk drive device which is a disk drive device, 2 is a base, 11 is a 1st optical pickup which is a 1st head, 12 is a 2nd optical pickup which is a 2nd head, 23 and 24 are head transfer mechanisms , A thread transfer mechanism, 31 is a first optical disk, 32 is a second optical disk, 33 is a first optical disk cartridge that is a two-head disk cartridge, 34 is a second optical disk cartridge that is a one-head disk cartridge, Reference numerals 36 and 39 denote first optical pickup insertion openings, which are head insertion openings, 37 denotes a second optical pickup insertion opening, which is a head insertion opening, 41 denotes a lifting platform, and 42 denotes lifting drive means. , 44 is a swing table, and 45 is a swing drive mechanism.

Claims (4)

First and second heads for recording and / or reproducing data are mounted on the base,
A disk is stored inside, a two-head disk cartridge having two head insertion openings corresponding to the first and second heads open at the bottom, and a disk stored inside, Of the first and second heads, two types of disk cartridges can be exchanged: one head insertion cartridge corresponding to the first head and one head insertion cartridge having a bottom opening. In the disk drive device configured to be mounted,
Of the first and second heads, the second head dedicated to the two-head disk cartridge is retracted so as not to interfere with the one-head disk cartridge; Or a means for controlling movement between playback areas,
In a state where the second head is retracted to the retracted position, the two types of disk cartridges are configured to be replaceably mounted on the base,
When the two types of disk cartridges are mounted in a replaceable manner, the two types of disk cartridges are read by the first head common to the two types of disk cartridges so that the two types of disk cartridges are the two-head disk. A mode for discriminating between a cartridge and the disk cartridge for one head;
When it is determined that the mounted disk cartridge is the two-head disk cartridge, after the disk cartridge is mounted, the other head that is retracted to the retracted position is used as a data recording and / or reproducing area for the disk. A mode in which the disk is simultaneously recorded and / or reproduced by the first and second heads,
When it is determined that the mounted disk cartridge is the one-head disk cartridge, after the disk cartridge is mounted, the other head is retracted to the retracted position and only the first head is used. The disk drive device according to claim 1, further comprising: a mode for recording and / or reproducing data. 2. The disk drive device according to claim 1, further comprising means for controlling movement of the second head between the retracted position and the data recording and / or reproducing area in parallel in the horizontal direction. 2. The disk drive apparatus according to claim 1, further comprising means for controlling movement of the second head in parallel in a vertical direction between the retracted position and the data recording and / or reproducing area. 2. The disk drive device according to claim 1, further comprising means for controlling movement of the second head between the retracted position and the data recording and / or reproducing area by a swinging motion.

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