JP3007904B2 - Disc playback device - 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 reproducing apparatus having a disk changer function, and more particularly to a disk reproducing apparatus capable of exchanging disks during reproduction.

[0002]

2. Description of the Related Art A changer-type disc reproducing apparatus moves a plurality of trays between a loading / unloading position for loading or unloading a disc, a standby position for stocking a disc, and a reproducing position for playing a disc. It has become.

The loading type of the conventional changer type disk reproducing apparatus is roughly classified into a carousel type in which a rotating disk tray capable of mounting a plurality of disks in a frequency-divided manner is projected out of the reproducing apparatus and a plurality of trays. There is a magazine method in which a magazine in which is stored in a stacked form projects outside the playback device.

[0004]

However, in the conventional carousel type, since a plurality of discs are placed on a plane, there is a limit to miniaturization. The carousel type has a drawback that other disks cannot be taken out during the performance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disk reproducing apparatus capable of taking out another disk even during a performance and enabling downsizing.

[0006]

A disk reproducing apparatus according to the present invention includes a plurality of trays, and a disk mounting surface protrudes out of the disk reproducing apparatus to mount a disk on the disk mounting surface or to mount the disk on the disk mounting surface. A first position at which the disk can be taken out from the mounting surface, a second position at which the disk is placed in the playback device with the disk mounted, and a second position at which the disk is selectively transported from the second position. A disc-reproducing apparatus of a changer type for moving the tray so as to correspond to a third position for reproducing a disc to be reproduced, wherein a plurality of trays having a disc mounting surface on one side are coaxially supported. Tray mechanism that allows each tray to swing around the rotation axis, and each tray corresponds to each position
And a drive mechanism for swinging the actuator.
In the present invention, the driving mechanism for swinging is
The tray gear provided on the tray rotation shaft and each tray gear
Multiple trays arranged at different heights to accommodate different trays
A select gear having the select gear mounted thereon,
Select the tray that swings by rotating the select gear.
Select gear drive and the gear meshed with the tray gear.
Rotate the ray selection gear to swing the selected tray
And a swing drive unit for causing

[0007] In another invention, a plurality of trays are provided.
The first position for loading or unloading the disk and the disk
A second position for waiting the disk and a third position for playing the disk
Change tray to correspond to the position of
Disc player with a disc mounted on one side.
A plurality of trays with mounting surfaces are coaxially supported
A tray that allows a to swing around the rotation axis
Mechanism so that each tray corresponds to each position.
And a driving mechanism for driving the tray.
The tray gears around the entire circumference and the rotation plane of each tray.
And a cylindrical gear with teeth formed at positions that do not overlap,
Arranged with the teeth of each tray gear stacked in the axial direction
are doing.

[0008]

When a disc is placed on the disc loading surface of each disc tray at the first position and the operation unit is operated, the disc tray is rotated, and the detection means detects that the disc tray has reached the second position. And the drive source stops and waits at the second position. When the operation knob corresponding to the disc to be played is pressed, only the tray on which the selected disc is mounted is rotated, and stops at that position when the detection means detects that the tray has reached the third position.

On the other hand, the playing means stands by below the lower tray, and when the playing means rises, the disc is held by the playing means and the clamper, and the performance is started.
Other trays can swing while playing,
Since the player can be turned to the first position by operating the operation unit, the disc can be changed even during the performance. When the performance ends, the performance means descends, the disc is placed on the tray, and returns to the second position by the reverse drive of the drive mechanism.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disk reproducing apparatus according to the present invention will be described with reference to FIGS. In the drawing, reference numeral 10 denotes a tray mechanism, which is a tray 1 having a disc mounting surface 2 formed on one side.
, And in the embodiment, three trays a, b, and c are coaxially supported on the rotating shaft 3 so that each tray can swing with the rotating shaft 3 as a fulcrum.

In the embodiment, each of the trays 1 has a substantially chamois-like planar shape, the disk mounting surface 2 is formed on a wide front portion, and the rear end portion is pivotally supported. Reference numeral 4 denotes a notch formed in a part of the disk mounting surface 2.

The tray mechanism 10 is driven by a drive mechanism 20 so that the disc mounting surface 2 has a disc reproducing device PL.
A first position A in which a disc CD is mounted on the disc mounting surface 2 so as to protrude from an opening 41 formed in the cabinet 40 and can be taken out from the disc mounting surface 2; A second position B in which the disc is put on standby in the playback device PL while being loaded
And a disk C selectively conveyed from the second position B
The tray 1 is caused to swing so as to correspond to a third position C where D is reproduced.

The drive mechanism 20 includes a drive motor 21,
A gear having a pendulum gear 22 driven by the drive motor 21 and a transmission gear 23 selectively meshing with the pendulum gear 22 .
And a select gear drive unit having a select gear 26 that is driven to rotate via a transmission gear 25 by the rotation of the switch motor 24, and a tray gear G provided on each rotation shaft of each tray 1.
a, Gb, and Gc, and a detection switch.
The select gear 26 is provided with a select gear 28 on a table gear 27 that rotates forward and backward by meshing with the transmission gear 25, and the tray gear Ga,
Tray selection gears 28a, 28b corresponding to Gb, Gc,
28c are arranged with a step. Further, the detection switches are provided for the tray selection gears 28a, 28b, 28c.
A selection gear position detection switch S1 for detecting that the base gear 27 has rotated to a predetermined position in a state in which the tray gear meshes with the tray gear, and a tray position detection switch S2 for detecting that the tray 1 has swung to a predetermined position. Have been. Note that, in the illustrated example, only the one arranged at the first position A is shown.

A lifting mechanism 30 for driving the performance means 31 up and down.
A cam gear 32 driven by the pendulum gear 22,
A slide member 33 that slides horizontally by the cam gear 32, and a slide position detection switch (limit switch) S3 that detects the slide of the slide member 33.
A hole cam 34 having a slope shape is formed on a side surface of the slide member 33, and a vertical guide hole 42 is formed in the cabinet 40, and a holding shaft 43 for lifting and lowering the playing means 31 is provided with the hole cam. 34 and vertical guide hole 42
Has been inserted. A hole cam 35 is formed on the upper surface of the slide member 33 in the front-rear direction.
The positioning pin 44 implanted in the position 1 is guided.

Next, an operation example will be described. At the first position (disc loading or unloading position) A, the tray 1 (a, b,
The drive motor 21 rotates clockwise by placing the disc on the c) and operating the operation unit, thereby rotating the tray 1 counterclockwise. When the tray position detection switch S2 detects that the tray has rotated to the predetermined position, the drive motor 21 stops, and the tray 1 stops at the second position (stock position) B and waits.

When the disk CD is stored as described above and the operation key corresponding to the disk to be played is pressed,
The switching gear 24 rotates until the transmission gear 25 and the tray 1 containing the disc to be played are engaged with each other, and the select gear 26 rotates until the selection gear position detection switch S1 detects that the switching motor 24 stops. I do.

Thereafter, the drive motor 21 rotates clockwise again, and the tray 1 is moved to the pendulum gear 22, the transmission gear 23,
It rotates to the third position C (playing position) via the select gear 26, and the drive motor 21 stops when the detection switch S2 detects it.

On the other hand, the playing means 31 comprises a plurality of trays 1
Waiting below the lowermost tray. When the drive motor 21 rotates counterclockwise, the pendulum gear 22 rotates clockwise and meshes with the cam gear 32 to move the slide member 33 horizontally. With the horizontal movement of the slide member 33, the holding shaft 43 is guided by the hole cam 34, and the playing means 31 moves up and down. The disc CD is held by the playing means 31 and the clamper 45 held in the cabinet 40.

In the above embodiment, the tray 1 has three sheets a, b, and c. As shown in FIG.
a, b, c, d, and e may be used.

[0020]

According to the disk reproducing apparatus of the present invention,
A tray mechanism that coaxially supports a plurality of trays having a disk mounting surface on one side so that each tray can swing with the rotation axis as a fulcrum, and a driving mechanism,
置又mounting disk so as to correspond to the third position is a playback position and a second position which is the first position and the stock position which is the position of the retrieval, the arrangement for swinging the tray
In addition, trays with different heights depending on the rotation of the select gear
The selected gear is switched to mesh with the specified tray gear.
Therefore, even during the performance, the disc can be exchanged by swinging the other tray to the first position.
With each tray it is possible to miniaturize the external dimensions from those to swing as a fulcrum coaxial rotary shaft
The operation of each tray can be performed reliably. Also,
According to the second aspect of the present invention, each tray is switched and each tray is switched.
Swing operation can be performed with a simple configuration and parts
It can be simplified and easy to assemble.
Real operation can be ensured.

According to the third aspect of the present invention, each tray
The tray gear of (a) has the entire circumference and the rotation plane of the tray.
Because the teeth are formed at positions that do not overlap with
The rotation range of the tray can be enlarged, and the tray
It is easy to set three wing positions. Only
Are formed around the entire circumference and stacked in the axial direction.
Drive mechanism to swing the tray
The degree of freedom can be given to the position.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a disk reproducing apparatus according to the present invention.

FIG. 2 is a side view schematically showing a lifting mechanism.

FIG. 3 is a perspective view showing a basic configuration of a disc reproducing apparatus according to the present invention.

FIG. 4 is a side view showing a driving mechanism.

FIG. 5 is a side view showing an elevating mechanism.

FIG. 6 is a diagram showing a relationship between each tray and a tray gear;
FIG.

FIG. 7 is a perspective view schematically showing a swing state of a tray.

FIG. 8 is a perspective view of a tray mechanism showing an example constituted by five trays.

[Explanation of symbols]

 PL disk reproducing device A first position B second position C third position CD disk Ga tray gear Gb tray gear Gc tray gear S1 selection gear position detection switch S2 tray position detection switch 10 tray mechanism 1 tray 2 disk mounting part 3 rotation Shaft 4 Notch 20 Drive mechanism 21 Drive motor 22 Pendulum gear 23 Transmission gear 24 Switching motor 25 Transmission gear 26 Select gear 27 Base gear 28 Center gear 28a Tray selection gear 28b Tray selection gear 28c Tray selection gear 30 Elevating mechanism 31 Playing means 32 Cam gear 33 Slide member 34 Hole cam 35 Hole cam 40 Cabinet 41 Opening 42 Vertical guide hole 43 Holding shaft 44 Positioning pin 45 Clamper

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-107463 (JP, A) JP-A-5-234229 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 17/22-17/30

Claims (3)

(57) [Claims] 1. A plurality of trays, wherein the trays correspond to a first position for loading or unloading a disk, a second position for waiting the disk, and a third position for playing the disk. A disc-reproducing apparatus of a changer type for moving a plurality of trays having a disc mounting surface on one side thereof and coaxially supporting the trays so that each tray can swing around a rotation axis. And a drive mechanism for swinging each tray so as to correspond to each of the positions .
Tray gears provided on the rotation axis of the ray, and each tray gear
Selection of multiple trays arranged at different heights according to
Select gear with the selection gear
The tray that swings by rotating the rect gear
Meshes with the select gear drive to be selected and the tray gear
The selected tray by rotating the selected tray selection gear.
A disk drive comprising: a swing drive section for swinging the a . 2. The select gear according to claim 1 , wherein the select gear is
A table gear that meshes with the transmission gear in the drive unit, and on this table gear
And the periphery of this center gear
And the center gear
And the tray selection gear meshing with the gear
The driving force transmitted from the wing drive unit is
Notifying the non-meshing tray selection gear
The tray gear from the selected gear via the center gear
The disc reproducing apparatus according to claim 1 , wherein the signal is transmitted to a tray selection gear meshed with the disc. 3. A disk loading device comprising a plurality of trays,
Or the first position to be ejected and the second
It corresponds to position 2 and the third position for playing the disc.
Changer type disc to move the tray
A reproducing apparatus having a disc mounting surface on one side.
Several trays are supported coaxially, and each tray supports the rotation axis.
A tray mechanism that can swing as a point
The drive that swings the ray so as to correspond to each of the positions
And a tray provided on a rotation shaft of the tray.
The ig gear is placed over the entire circumference and is
A cylindrical gear with teeth formed where it does not
Make sure that the teeth of the igear are stacked in the axial direction.
And a disk reproducing apparatus.