JP3208582B2 - Disk auto changer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk capable of performing continuous recording and / or reproduction over a long period of time while automatically exchanging various types of disks from a storage section storing a plurality of disk-shaped recording media. It is about an autochanger.

[0002]

2. Description of the Related Art A disk storage section for storing a large number of disks in a shelf, and a disk for recording and reproducing data 1
Alternatively, a disk auto-changer including a plurality of disk drives and a disk carrier that takes out a desired disk from a disk storage unit and transports the disk to the disk drive is known. This is because the disk carrier moves to the position of the disk storage unit according to the performance command (or recording command) of the desired disk, takes out the relevant disk, carries it to the disk drive position, loads it to the disk drive, and performs the recording / reproducing operation. In addition, when the recording / reproducing operation is completed, an operation of returning the disk unloaded from the disk drive to the original position in the disk storage unit is possible.

[0003] In such a disc autochanger, for example, a large number of CDs (compact discs) are accommodated, and a desired music piece can be easily selected from a large number of music pieces without performing troublesome operations such as disc replacement. In particular, in the case of a disk autochanger in which a plurality of disk drives are prepared, one disk drive performs a reproducing operation on another disk drive based on a previously input performance program and the like. Loading discs has many advantages, such as enabling continuous continuous performance, and is widely used for karaoke and business use.

[0004]

By the way, such a disk autochanger usually has a considerably large size because it has a storage section having a number of disk shelves, a disk carrier and its transport path, and a disk drive. On the other hand, various adjustments at the time of manufacture and after manufacture are the most troublesome for the disk drive part, but since the disk drive is built into the disk autochanger body and functions, various adjustments are performed Must be performed on a large disk autochanger main body, which wastes working space and time, and the work itself is not easy.

In addition, for example, during maintenance after installation at an actual place of use, an adjustment operator must go to the site to adjust the disk drive or move a heavy-weight disk autochanger body. However, there is a problem that it is very complicated.

[0006]

Means for Solving the Problems The present invention has been made in view of such problems, a housing part for housing a plurality of disks, the disk carriers carrying selectively remove the disc from the housing section When, a disc changer having a disc drive for reproducing the disc that will be carried by the disc carrier, the disc drive, the disc is placed is
Information from the turntable and the disc
Head unit having an optical pickup device for reading out
And a space for accommodating the head unit are formed.
The head unit to be stored
And a support for movably supporting the disk in the
With the above turntable moved in the chucking direction
A chucking portion for holding the disc between
A deck unit, and the deck unit is
With the drive unit housed in the space,
Removably attached to the square changer body
And the head unit is mounted on the deck unit.
With the disk mounted on the disc autochanger
And detachably attached to the above deck unit.
It is intended to provide a disk autochanger characterized by being operated.

[0007]

[Action] The deck unit is detachable from the main body,
Further, by making the head unit detachable from the deck unit, the adjustment of the deck unit and the head unit can be performed separately from the disk autochanger main body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk autochanger according to the present invention will be described below with reference to FIGS. First, in FIG. 7, reference numeral 1 denotes the entire disc autochanger, and the disc autochanger 1 basically has a first and a second storage in which a large number of discs 2, 2... Disk storage units 3 and 4 and these first,
First and second disk drives 5 and 6 disposed below the second disk storage sections 3 and 4, and the first and second disk drives 5 and 6 and the first and second disk storages And a disk carrier 7 that can reciprocate between the sections 3 and 4.

[0009] The discs stored in the disc storage sections 3 and 4 are taken out by the disc carrier 7 and conveyed to the first or second disc drive 5 or 6 where they are loaded by the loading mechanism and recorded and / or recorded. Reproduction is performed. Although not shown, a user operation input unit and a system control unit are provided to control operations such as disc selection, transport, recording and reproduction, and the like.

Here, the disk drives 5 and 6 move with respect to the deck unit 10 (shown schematically using a two-dot chain line) and the chucking direction in the deck unit 10, ie, between the disk loading position and the disk unloading position. FIG. 7 shows a case where the head unit 20 is at the disk unloading position and the disk drive 6 is at the disk loading position.

The deck unit 10 and the head unit 20
2 and the disk loading operation of the head unit 20 mounted in the deck unit 10, FIG.
This will be described with reference to FIGS.

The deck unit 10 has a space 11 for accommodating the head unit 20 therein,
Above it, an upper plate 13 that supports the chucking plate 12 so as to be able to move up and down is provided. Also,
On the rear side of the chucking plate 12, a hole 14 for obtaining a slide space for pickup is provided.
Further, a pair of bearing portions 15 are formed on both rear sides of the space portion 11, and a screw hole 15 a is provided below the bearing portion 15. Further, a flange portion 16 extending on both sides of the bearing portion 15 is formed, and a screw hole 16 is formed in the flange portion 16.
a is provided.

At the lower front side of the deck unit 10, substantially U-shaped engaging portions 17 are provided continuously with both side wall portions of the deck unit 10. Further on the front side, FIG.
As can be seen from FIG. 6, a cylindrical cam 18 is rotatably attached, and a cam groove 18
a is provided. The gear 1 is located below the cam 18.
8b is provided, and the cam 18 is rotationally driven by transmitting a driving force from a motor (not shown) to the gear 18b.

On the other hand, the head unit 20 includes a spindle motor 21 and a turntable 22 and an optical pickup device 23. The optical pickup device 23 can be moved in the disk radial direction by a thread feed mechanism (not shown).

Although the drive circuit system and the control circuit system are not mounted on the head unit 20, the spindle motor 21, the optical pickup device 23
Supply of control signals, drive voltages, etc. to the optical pickup device 23 and recording / reproducing signals between the recording / reproducing circuit system and the flexible sheet 2 composed of a plurality of lead wires.
4 is performed.

A rotary shaft 25 is mounted on the back side of the head unit 20. Both ends 25a of the rotary shaft 25 can be fitted into the bearings 15 of the deck unit 10 described above. Then, the head unit 20 is inserted into the space 11 of the deck unit 10 and the rotating shaft 2
A stopper 40 is provided for preventing the rotating shaft 25 from dropping off the bearing portion 15 with both end portions 25a of the fifth member 5 fitted in the bearing portion 15. That is, by screwing the screw 41 into the screw hole 15a via the stopper 40,
Head unit 20 inserted in deck unit 10
Is mounted on the rear side so that it cannot be dropped off, and is rotatable up and down around the rotation shaft 25.

A toggle spring 27 is attached near both ends of the rotating shaft 25, and one end 27a is held by a spring stopper 28 on the side surface of the head unit 20. The other end 27b of the toggle spring 27 is not restricted in FIG. 2, but when the head unit 20 is mounted on the deck unit 10, the other end 27b is locked by the spring locking piece 19 of the deck unit 10. It is made to be done.

Further, a cam pin 26 is provided on the front side of the head unit 20. When the head unit 20 is mounted in the deck unit 10 as described above,
As shown in FIGS. 5 and 6, the cam pin 26 is fitted into the cam groove 18a formed in the cam 18. Therefore, when the head unit 20 is mounted on the deck unit 10,
Is defined by the fitting state of the cam pin 26 and the cam groove 18a.

As described above, the front is held by the cam groove 18a into which the cam pin 26 fits, and the rear is the rotary shaft 25.
When the disk 2 is loaded, the head unit 20 mounted in the deck unit 10 by being held by the bearing portion 15a for supporting the disk 2 is in a state shown in FIG. In other words, the cam groove 18a is formed by inclining the peripheral surface of the cam 18, but the cam 18 is rotated in such a manner that the cam groove 18a faces the cam pin 26 in a state where the cam groove 18a is located at the lowest position on the peripheral surface of the cam 18. And the head unit 20 is held in a state where the head unit 20 is inclined downward about the rotation shaft 25.

In this state, when the disc 2 conveyed by the disc carrier 7 is loaded into the deck unit 10 as shown in the figure, the driving force from a loading motor (not shown) is transmitted to the gear 18b, and the cam 18 is moved. Rotated. That is, the cam 18 is rotationally driven to a rotational position facing the cam pin 26 in a state where the cam groove 18 a is located at the uppermost position on the peripheral surface of the cam 18. This cam 18
The head unit 20 whose front is supported by the cam pin 26 is rotated by the rotation of the shaft unit 25 as shown in FIG.
Is rotated upward about the center of the disk 2, and the turntable 22 presses the disk 2 against the chucking plate 12 while holding the central hole of the disk 2.

As a result, the disk 2 is fixed, and can be rotated at a constant linear velocity or a constant angular velocity by rotational driving by the spindle motor 21. Of course, in this state, the optical pickup device 23 is opposed to the recording surface of the disk 2 in a state perpendicular to the recording surface, and the recording or reproducing operation is performed by the recording or reproducing laser beam scanning as the disk 2 rotates.

When the disc 2 is unloaded, the cam 18 is rotated again. That is, the cam groove 18
The cam pin 26 is moved downward along a, and the head unit 20 is held in the inclined state of FIG. Here, the disk 2 is pulled out by the disk carrier 7 in the forward direction of the deck unit 10, carried to the disk storage units 3 and 4, and stored in a predetermined position.

Since the other end 27b of the toggle spring 27 is locked to the spring locking piece 19 of the deck unit 10 as described above, the head unit 20 is urged upward by a certain force. So that the cam pin 2
Numeral 6 is in a state of being lightly pressed against the upper surface of the cam groove 18a of the cam 18.

Such a disk autochanger 1
1 is shown in FIG. 1 as viewed from the back. In addition,
The lower part on the rear side is normally closed by a rear cover 50, but FIG. 1 shows a state where the rear cover 50 is removed. The rear cover 50 is provided with a locking pin 1a provided substantially in the center of the rear surface of the main body of the disc autochanger 1.
And a screw 53 is screwed into a screw hole 1b of the main body via a screw hole 52 provided in a flange portion on both sides while engaging the locking portion 51.

By removing the rear cover 50, the drive circuit boards 60 corresponding to the respective disk drives 5, 6 are exposed as shown in the figure, and the deck units 10 of the respective disk drives 5, 6 are mounted below the drive circuit boards 60. The part 70 is displayed.

The mounting portion 70 is provided with two units of openings 71 communicating with the internal space on the back plate so that two units of the deck unit 10 can be mounted. The fixing piece 72 is formed in each. The front end of the fixing piece 72 is bent in a direction parallel to the rear surface, and a screw hole 72a is formed in the bent portion. The screw holes 72a are located at positions corresponding to the screw holes 16a formed in the flange 16 on the rear side of the deck unit 10.

On the bottom surface of the inner space of the mounting portion 70, a regulating convex portion 73 is formed integrally with the bottom surface or separately fixed on the front side as shown in FIG.
3 have notches 74a, 74 corresponding to the positions of the substantially U-shaped locking portions 17 in each of the pair of deck units 10.
b is formed.

In the disk autochanger according to the present embodiment, when the rear cover 50 is removed to expose the mounting portion 70, the deck unit 10 is removed.
Or it can be worn. FIG. 1 shows a state where the left deck unit 10 (disk drive 6) is mounted on the main body 1 and the right deck unit 10 (disk drive 5) is removed from the main body 1.

The deck unit 10 is mounted on the mounting portion 70 of the main body 1.
When the deck unit 10 is mounted on the deck unit 10, the deck unit 10 is inserted through the opening 71, and a pair of locking portions 17 formed at the lower front lower ends of the deck unit 10 are provided in the mounting portion 70. The projections 73 are inserted into the cutouts 74a and 74b, respectively.

Here, as shown in an enlarged manner in FIG. 4, the cutout portion 74a has a simple rectangular cutout shape, but the cutout portion 74b is formed so that the substantially central portion of the cutout portion becomes narrow. The notch width w of the narrowest portion is slightly larger than the thickness of the locking portion 17 and is substantially the same. Therefore, the mounting position of the deck unit 10 in the mounting portion 70 is strictly defined by the engagement between the notch 74b and the one locking portion 17. Further, since the other cutout portion 74a has a margin with respect to the thickness of the locking portion 17, even if a slight design error occurs, both locking portions 17a are notched portions 74a, 74b.
It will not be impossible to insert into The locking portion 17 is a notch 74
5 (a) and 7 (b) are shown in FIG.

After the front side of the deck unit 10 is locked and held by the regulating projection 73 in this manner, the rear flange 16 of the deck unit 10 is brought into planar close contact with the bent front end of the fixing piece 72. That is, the screw hole 72
Screws 75 are screwed together with a and 16a aligned. As a result, the deck unit 10 is also fixed rearward, and is mounted on the main body 1. The flexible sheet 24 for transmitting various signals is led out of the head unit 20 mounted in the deck unit 10. By connecting the flexible sheet 24 to the connector section 61 of the upper drive circuit board 60, the disk is Operation as a player becomes possible.

Conversely, when removing the deck unit 10 from the main body 1, the back cover 50 is removed to expose the mounting portion 70, and then the drive circuit board 60 is removed from the head unit 20 mounted on the deck unit 10. Is detached from the drive circuit board 60 at the connector 61 thereof. Then, the screw 75 screwed through the screw holes 16a and 72a is removed. After that, when the deck unit 10 is pulled out rearward, the locking portion 17 and the notch portion 74 on the front side naturally move.
The engagement with the a and 74b is released, and the deck unit 10 can be removed from the main body 1.

In this embodiment, since the head unit 20 is mounted on the deck unit 10 as described above, the head unit 20 can be mounted on the main unit 1 or removed from the main unit 1. Even if there is, the head unit 20 can be detached from the deck unit 10 and attached.

That is, when removing the head unit 20, the flexible sheet 24 is removed at the connector 61,
Further, a stopper 40 for holding the rotating shaft 25 in the bearing portion 15 is removed, and the other end 27b of the toggle spring 27 is further removed.
When the head unit 20 is detached from the spring engaging portion 19 of the deck unit 10, the cam pin 26 and the cam groove 18a are disengaged by pulling the head unit 20 backward, and the head unit 2
Only 0 can be removed. Of course, mounting may be performed in a reverse manner.

As described above, in this embodiment, since the deck unit 10 and the head unit 20 can be easily removed and mounted from the disk autochanger main body 1, the production, adjustment, and adjustment of the deck unit 10 and the head unit 20 can be performed. Repair and inspection can be performed very easily. Further, the worker does not always have to go to the place where the main body 1 is installed, and the work efficiency is greatly improved. Of course, the exchange of the deck unit 10 and / or the head unit 20 is also easy.

Further, since the deck unit 10 and the head unit 20 can be assembled independently in the manufacturing process, there is an advantage that various dimensional accuracy in the unit can be easily managed. For example, it is easy to set the relationship such as the height position accuracy between the chucking plate 12 and the turntable 22.

The structure of the present invention, the method of attaching / detaching the deck unit and the head unit, the type of the disk medium, the number of the deck units, and the like are not limited to the above-described embodiment, but may be various within the scope of the present invention. Needless to say, it can be changed.

[0038]

As described above, in the disc auto changer of the present invention, the deck unit is detachably attached to the disc auto changer body, and the head unit mounted in the deck unit is detachable from the deck unit. Because it is configured to be, it is possible to perform adjustment, replacement, etc. of the deck unit and / or the head unit without removing parts that are not directly related to the deck unit or the head unit,
Manufacturing can also be performed to some extent in an independent process. Therefore, there is an effect that the efficiency of manufacturing work, adjustment work, maintenance after installation, and the like can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of a disc autochanger of the present invention.

FIG. 2 is a perspective view of a deck unit and a head unit in the embodiment.

FIG. 3 is an explanatory diagram of the inside of a deck unit mounting portion in the embodiment.

FIG. 4 is an explanatory diagram in which a part of the inside of the deck unit mounting portion in the present embodiment is enlarged.

FIG. 5 is an explanatory diagram of a configuration of a deck unit and a head unit and a loading operation in the embodiment.

FIG. 6 is an explanatory diagram of a configuration of a deck unit and a head unit and a loading operation in the embodiment.

FIG. 7 is an explanatory diagram of the overall configuration of the disc autochanger of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disk auto changer 2 Disk 3, 4 Disk storage part 5, 6 Disk drive 7 Disk carrier 10 Deck unit 15 Bearing part 17 Lock part 18 Cam 20 Head unit 24 Flexible sheet 25 Rotation axis 26 Cam pin 50 Back cover 70 Mounting part 71 Opening 72 Fixing pieces 74a, 74b Notch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 17/02 G11B 33/02

Claims (1)

(57) [Claims] And 1. A housing portion for housing a plurality of disks, and a disk carrier for conveying selectively remove the disc from the housing section, re-disks that will be carried by the disk carrier
A disc changer having a disc drive for raw, the disk drive turntable and the placing of the said disc is mounted
Optical pickup device for reading information from disc to be read
A head unit having a head unit, and a space for accommodating the head unit are formed.
Store the head unit in the disc chucking direction.
And a support for movably supporting the disk checker
With the above turntable moved in the
And a deck unit having a chucking portion for holding the head.
With the disc autochanger
The head unit is detachably attached to the main unit , and the head unit is
When the disc is attached to the disc autochanger,
A disk autochanger that is detachably attached to a deck unit .