JP2002109810A - Changer type disk reproducing and/or recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To expedite the further miniaturization a changer type disk reproducing/recording device, wherein space is saved by moving a disk driving section into a disk housing section during reproducing/recording of information. SOLUTION: In linked with the positional change of a disk driving section 3 to a disk housing section 2, a guide shaft 9 is turned with one end 9a set as a rotational center in a direction for approaching/separating from a screw shaft 8. In a standby state where the disk driving section 3 is disposed outside the disk housing section 2, the guide shaft 9 is positioned between the screw shaft 8 and the disk housing section 2 in the attitude of being inclined to the screw shaft 8. Following the movement of the disk driving section 3 into the disk housing section 2, the guide shaft 9 is moved in a direction away from the screw shaft 8, thus both shafts 8 and 9 are set parallel to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a changer-type disc reproducing and / or recording apparatus for selectively reading and / or writing information from and to a plurality of disc-shaped recording media which can be accommodated coaxially.

[0002]

2. Description of the Related Art In a changer-type disc reproducing / recording apparatus of this kind, a turntable or a turntable is provided in a disc storage section in which a plurality of stockers for holding a disc-shaped recording medium (hereinafter abbreviated as a disc) are arranged so as to be able to move up and down. A spindle motor, an optical pickup, etc. are mounted on a mechanical chassis to enter a disk drive unit, thereby reading and writing information to and from a disk arranged at a predetermined play position in a disk storage unit, When raising and lowering the stocker, the disk drive unit is retracted outside the disk storage unit to avoid interference with the stored disk. As described above, when the disk drive unit is configured to be movable into and out of the disk storage unit, the apparatus is compared with a system in which the disk in the disk storage unit is pulled out to the play position outside the disk storage unit to perform reproduction or recording. Can be significantly reduced in size.

That is, in this type of apparatus, a desired disc stored in a disc storage section can be arranged at a predetermined play position by raising and lowering a stocker, and is formed below the play position. A turntable or an optical pickup can enter the space. Therefore, it is possible to read and write information on the disk by moving the optical pickup along the radial direction of the disk while mounting and rotating the disk placed at the play position on the turntable. The disk drive section can be moved in and out of the disk storage section by rotating the mechanical chassis. However, the disk drive section can be moved in and out of the disk storage section by sliding the mechanical chassis. -2
83707). The optical pickup is arranged between a screw shaft and a guide shaft arranged side by side on the mechanical chassis in parallel with each other. The optical pickup is guided by the guide shaft while being driven by the rotating screw shaft, and in the axial direction of both shafts. It is to be transported along.

[0004]

In the above-described changer type disk reproducing / recording apparatus, a standby space for the disk drive section is secured beside the disk storage section, but the planar size of the disk storage section is limited. Since it is almost determined by the size of the disk itself, in order to promote the miniaturization of the device, it is necessary to set the disk drive unit in the standby state so as to minimize the space factor on the side of the disk storage unit. .

However, the width of the disk drive is defined by the screw shaft and the guide shaft which form the optical pickup transfer area, and the distance between the shafts is determined by the width of the optical pickup.
When a normal-sized optical pickup is used, if the disk drive unit is made to stand by at a position where the two shafts extending in parallel do not interfere with the disk in the disk storage unit, a wide standby space will inevitably be set at the side of the disk storage unit. Therefore, the conventional apparatus has a limitation in miniaturization. If a small optical pickup is used, the width of the disk drive can be reduced.
This is not preferable because it necessitates an increase in component costs and a decrease in reliability.

[0006]

SUMMARY OF THE INVENTION According to the present invention, the position of a disk drive unit relative to a disk storage unit is changed.
The guide shaft for guiding the optical pickup is rotated around its one end in a direction in which the other end approaches or separates from a reference line extending in the transport direction of the optical pickup, and the disk drive unit waits outside the disk storage unit. In this case, the other end of the guide shaft is positioned between the screw shaft and the disk storage portion in a posture approaching the reference line. As described above, when the disk drive unit is put on standby, the other end of the guide shaft adjacent to the disk storage unit is inclined toward the reference line so that the guide shaft and the reference line are tapered, and the disk storage unit is closed. By arranging the disk drive unit in a narrow lateral area, the disk drive unit can be efficiently arranged in a limited space.
If the guide shaft is rotated to a position parallel to the reference line with the movement of the disk drive unit into the disk storage unit, when the information of the disk is reproduced or recorded, the guide shaft rotates in the radial direction. The optical pickup can be transported along without any trouble.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a changer-type disk reproducing / recording apparatus according to the present invention, a disk storage section in which a plurality of stockers capable of holding a disk-shaped recording medium are arranged so as to be able to move up and down, and along an axial direction of a guide shaft. A disk drive unit having an optical pickup and a rotatable turntable mounted thereon, and a drive chassis drive means for moving the disk drive unit into and out of a disk storage unit. While moving the optical pickup in the radial direction of the disk-shaped recording medium in a state where the optical pickup is moved into the disk storage section, information is read and / or written on the disk-shaped recording medium, and the disk drive section is mounted on the disk-shaped recording medium. The stocker and the disk drive unit are arranged outside the storage unit. In a changer-type disc reproducing and / or recording apparatus for moving up and down relatively, the guide shaft is rotated about one end at the other end and the light at the other end in conjunction with a change in the position of the disc drive with respect to the disc storage section. The guide shaft and the reference line are separated from a reference line extending in the transfer direction of the pickup so that the guide shaft and the reference line rotate from a position closer to the reference line to a position closer to the reference line. In the state arranged outside, the other end of the guide shaft is in a posture approaching the reference line, and as the disk drive unit moves into the disk storage unit, the guide shaft is parallel to the reference line. The posture was configured.

In the changer type disk reproducing / recording apparatus having such a configuration, the guide shaft is tilted to a position closer to the reference line as the disk drive unit moves out of the disk storage unit. Since the relative positional relationship becomes narrower, a portion where the distance between the guide shaft of the disk drive unit and the reference line is narrow is arranged in a narrow region beside the disk storage unit, and from this narrow region to the outer edge of the disk storage unit. By arranging a portion where the distance between the guide shaft of the disk drive unit and the reference line is wide in a relatively large area extending along the disk drive unit, the disk drive unit in the standby state can be efficiently arranged in a limited space. Further, if the disk drive unit is moved from the standby position into the disk storage unit, the other end of the guide shaft is rotationally moved to a posture parallel to the reference line, and the guide shaft and the reference line are parallel. When reading or writing information from or to a disk placed in the optical pickup, the optical pickup can be transported along the radial direction of the disk without any trouble.

Further, in such a configuration, an arm which rotates in conjunction with the chassis of the disk drive unit and a movable pin which is connected to the other end of the guide shaft and driven by the arm are provided. If the guide shaft is configured to be driven and rotated with the rotation of the guide shaft,
Since it is possible to easily interlock the position change of the disk drive unit with respect to the disk storage unit via the arm and the movable pin, it is preferable to simplify the mechanism for rotating and driving the guide shaft.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view showing the internal state of a changer type disc reproducing apparatus according to the present embodiment when the disc is not played, and FIG. FIG. 3 is a plan view showing an internal state of the disc reproducing apparatus when playing, and FIG.

The changer-type disc reproducing apparatus shown in these figures is schematically constituted by including a disc storage section 2 and a disc drive section 3 inside a housing 1. The disk storage unit 2 is provided with a plurality of stockers 4 capable of holding the disks D, which can be moved up and down. Each stocker 4 is screwed to a common feed screw member 5. Therefore, when the feed screw member 5 is rotated to move each stocker 4 up and down, the disk D held by each stocker 4 moves up and down coaxially. The disk drive unit 3 has mounted on a mechanical chassis 11 a turntable 6, a spindle motor having a spindle shaft 7, an optical pickup 10 linearly transferred by a screw shaft 8 and a guide shaft 9 extending in parallel with each other. This mechanical chassis 1
1 is rotatable around a support shaft 12 erected on the bottom plate 1a of the housing 1 as a center of rotation. That is, the mechanical chassis 11
1 is driven to rotate counterclockwise in FIG. 1 and clockwise in FIG. 3 by driving means (not shown), whereby the disk drive unit 3 can be moved into and out of the disk storage unit 2.

Of the two shafts 8 and 9 for transferring the optical pickup 10, the driving screw shaft 8 is always fixed to the mechanical chassis 11, and the screw pickup 8 is used as a reference line to transfer the optical pickup 10. The guide shaft 9 for guidance is rotatable on the mechanical chassis 11 about the fixed end 9a as a center of rotation. That is, the free end of the guide shaft 9 is connected to the auxiliary shaft 13, and the movable pin 14 suspended from the auxiliary shaft 13 is driven by the mechanical chassis 11 via the arm 15. When the chassis 11 is reciprocated between the position shown in FIG. 1 and the position shown in FIG. 3,
The movable pin 14 reciprocates along the elongated hole 11 a formed in the mechanical chassis 11 with the rotation of the arm 15, and the guide shaft 9 rotates on the mechanical chassis 11 with the movement of the movable pin 14. It has become. The arm 15 is rotatably supported by a shaft 16 erected on the bottom plate 1 a of the housing 1, and a drive pin 17 suspended from the mechanical chassis 11 is provided in a notch 15 a of the arm 15. And the movable pin 14 integrated with the free end of the guide shaft 9 are loosely inserted. Therefore, when the mechanical chassis 11 is rotated about the support shaft 12, the arm 15 pushed into the drive pin 17 rotates about the shaft 16, and the notch 15a
Will push the movable pin 14.

In the disk reproducing apparatus having such a schematic configuration, the stocker 4 holding the desired disk D is moved up and down as appropriate to place the disk D at a predetermined play position in the disk storage unit 2. A space where the turntable 6 and the optical pickup 10 can be arranged is formed below the play position. Therefore, in the state shown in FIG. 1, after the stocker 4 is raised or lowered to dispose the disc D at the play position, the disc drive unit 3 is rotated counterclockwise in FIG. 1 to move to the position shown in FIG. Then, the turntable 6 and the optical pickup 10 are placed on the lower surface of the disc D located at the play position.
Can be opposed to each other. As the disk drive unit 3 enters the disk storage unit 2, the arm 1
Movable pin 14 driven by the mechanical chassis 11 through the
Move along the long hole 11a, the free end of the guide shaft 9 inclined toward the screw shaft 8 gradually moves away from the screw shaft 8, and the disk drive unit 3 is rotationally moved to the position shown in FIG. At this point, both shafts 8, 9 are parallel. Therefore, by moving the optical pickup 10 along the axial direction of the shafts 8 and 9 while mounting and rotating the disk D on the turntable 6, the optical pickup 10 moving in the radial direction of the disk D can be used. Information can be read from the disk D. In the state shown in FIG.
Is pressed against the end of the long hole 11a on the side opposite to the screw shaft 8, so that there is no fear that the guide shaft 9 is displaced.

When raising and lowering the stocker 4 in the disk storage unit 2, the disk drive unit 3 is placed outside the disk storage unit 2 as shown in FIG. Keep waiting. At this time,
Since the movable pin 14 is located at the end on the screw shaft 8 side in the elongated hole 11a, the guide shaft 9 has a tilted attitude such that its free end side gradually approaches the screw shaft 8, and the two shafts 8, The relative positional relationship 9 is tapered. However, since the optical pickup 10 is moved to the position closest to the turntable 6, interference with the optical pickup 10 does not occur even if the guide shaft 9 is inclined toward the screw shaft 8.

Here, the disk drive unit 3 shown in FIG.
1 will be described. As the mechanical chassis 11 rotates clockwise in FIG. 3 around the support shaft 12, the arm 15 pushed into the drive pin 17 rotates the shaft 16. Rotate counterclockwise around. Then, the peripheral edge of the notch 15a pushes the movable pin 14, so that the movable pin 14 moves toward the screw shaft 8 along the elongated hole 11a. When the mechanical chassis 11 rotates to the position shown in FIG. 1, the movable pin 14 reaches the end on the screw shaft 8 side in the elongated hole 11 a, and thus the free end of the guide shaft 9 via the auxiliary shaft 13. Is greatly drawn to the screw shaft 8 side, and both shafts 8, 9 are maintained in a non-parallel state.

As described above, in the present embodiment, when the disk drive unit 3 is at the standby position outside the disk storage unit 2, the guide shaft 9 is inclined toward the screw shaft 8 so that the two shafts 8, 9 are non-parallel. And,
A portion of the disk drive unit 3 where the distance between the shafts 8 and 9 is narrow is arranged in a narrow area on the side of the disk storage unit 2, and the area extending from the narrow area along the outer edge of the disk storage unit 2 is compared. A configuration is adopted in which a portion of the disk drive unit 3 in which the distance between the shafts 8 and 9 is wide is arranged in a target wide area. As a result, even in a small housing 1 in which a wide space cannot be secured on the side of the disk storage unit 2, the disk drive unit 3 in a standby state can be efficiently disposed in the limited space, and the changer The size of the disk reproducing apparatus can be easily reduced.

In the above-described embodiment, the disk drive unit is rotated inside the housing and moved to the inside and outside of the disk storage unit. However, the disk drive unit is slid inside the housing to enter and leave the disk storage unit. Even if the system is moved, the size of the device can be reduced by applying the present invention.

[0018]

The present invention is embodied in the form described above and has the following effects.

The guide shaft for guiding the optical pickup is rotated in the direction of approaching and separating from the screw shaft for driving the optical pickup, which is the reference line, in conjunction with the change in the position of the disk drive section with respect to the disk storage section. When the disk drive unit is on standby outside the disk storage unit, the guide shaft is positioned between the screw shaft and the disk storage unit with the guide shaft inclined toward the screw shaft side. Since the device is a device, when the disk drive unit is on standby, a portion of the disk drive unit where the gap between both shafts is narrow is arranged in a narrow area beside the disk storage unit, so that the disk drive can be efficiently used in a limited space. Parts can be arranged. therefore,
This type of device, which saves space by moving the disk drive unit into the disk storage unit at the time of reproducing or recording information, can be further reduced in size.

[Brief description of the drawings]

FIG. 1 is a plan view showing an internal state of a changer-type disc reproducing apparatus according to an embodiment of the present invention during non-play.

FIG. 2 is a main part side view showing a structure of a part A in FIG. 1;

FIG. 3 is a plan view showing an internal state during play of the disc reproducing apparatus.

[Description of Signs] 1 housing 2 disk storage unit 3 disk drive unit 4 stocker 6 turntable 8 screw shaft 9 guide shaft 9a fixed end 10 optical pickup 11 mechanical chassis 11a long hole 12 support shaft 13 auxiliary shaft 14 movable pin 15 arm 15a notch 17 drive pin D disk

Claims (2)

[Claims] 1. A disk storage section in which a plurality of stockers capable of holding a disk-shaped recording medium are arranged so as to be able to move up and down, an optical pickup that can be transported along the axial direction of a guide shaft, and a rotatable turntable. A disk drive unit, and a drive chassis driving means for moving the disk drive unit into and out of the disk storage unit. The optical pickup is mounted on the disk while the disk drive unit is moved into the disk storage unit. Information is read from and / or written to the disk-shaped recording medium while being transported in the radial direction of the disk-shaped recording medium, and the stocker and the disk are arranged in a state where the disk drive unit is disposed outside the disk storage unit. Changer-type disc playback and / or Or, in the recording apparatus, in conjunction with a change in the position of the disk drive unit with respect to the disk storage unit, the guide shaft moves away from a reference line whose other end extends in the transfer direction of the optical pickup with its one end as a rotation center. The guide shaft is rotated from a position in which the guide shaft and the reference line are parallel to a position approaching the reference line, and in a state where the disk drive unit is disposed outside the disk storage unit, the guide shaft is rotated. The other end of the guide shaft approaches the reference line, and as the disk drive unit moves into the disk storage unit, the guide shaft is configured to be in an attitude parallel to the reference line. Changer-type disc reproducing and / or recording device. 2. The device according to claim 1, further comprising: an arm that rotates in conjunction with a chassis of the disk drive unit; and a movable pin that is connected to the other end of the guide shaft and driven by the arm. The guide shaft is driven to rotate in accordance with the movement of the movable pin, and the changer-type disc is reproduced and / or rotated.
Or a recording device.