JP2755236B2 - Multi-disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-disc player capable of reproducing a plurality of discs continuously or in program order, and more particularly to a multi-disc player capable of exchanging discs stored in a tray even during disc playback. About.

[0002]

2. Description of the Related Art A multi-disc player capable of reproducing a plurality of discs continuously or in program order has been proposed in Japanese Utility Model Laid-Open No. 63-142051.
The multi-disc player proposed in the above publication accommodates a plurality of trays on which discs are placed in a storage unit, and allows a tray selected by a tray driving mechanism to be moved in and out of a front panel to replace a disc. In addition, the tray on which the disk is placed is pulled out of the storage section rearward by the tray drive mechanism and lowered onto the turntable to reproduce the disk.

[0003]

In the above-mentioned conventional multi-disc player, the tray drive mechanism is lowered during disc reproduction, and it is not possible to replace the disc by projecting the tray from the storage section. On the other hand, while playing a disc, you may want to prepare the next disc to play.
In such a case, in the conventional multi-disc player, it is inconvenient to wait until the performance of the currently reproduced disc is completed.

An object of the present invention is to provide a multi-disc player capable of exchanging a disc during reproduction of the disc.

[0005]

A multi-disc player according to the present invention comprises: a carrier for mounting a disc;
A slider tray supporting the carrier, a holder arranged in the housing for accommodating a plurality of the slider trays, a reproducing means arranged in the housing, and a first for transferring the slider tray between the holder and the outside of the housing. Transfer means, second transfer means for transferring the carrier between the slider tray in the holder and the upper (or lower) position of the reproducing means, and the carrier transferred to the upper (or lower) position of the reproducing means; Positioning means for relatively positioning the reproducing means with the reproducing means, wherein the carrier on which the disc to be reproduced is mounted is at the reproducing position, and another carrier can be moved in and out of the housing. It is.

Also, a carrier for mounting a disk, a slider tray supporting the carrier, a holder arranged in a housing for accommodating a plurality of the slider trays, a reproducing means arranged in the housing, and the slider First transfer means for transferring the tray between the holder and the outside of the housing; locking means for locking the carrier with the slider tray protruding outside the housing; (2) second transfer means for transferring between a position (or a lower position), and positioning means for relatively positioning the carrier transferred to a position above (or below) the reproduction means and the reproduction means; With the carrier on which the disc to be loaded is placed at the playback position, another carrier can be moved in and out of the housing.

[0007] Also, a holder disposed in the housing for accommodating a plurality of disks, a reproducing means disposed in the housing, a first transfer means for transferring the disk between the holder and the outside of the housing, Selecting means for moving in the disk arrangement direction for selecting a disk to be transferred by the first transferring means, and second transferring means for transferring the disk between a holder and a position above (or below) the reproducing means; Positioning means for relatively positioning the disc transported to a position above (or below) the reproducing means and the reproducing means, and allowing another disc to enter or leave the housing while the disc is in the reproducing position. This is what made it possible.

Further, a multi-disc player according to the present invention includes a carrier for mounting a disc, a holder arranged in a housing for accommodating a plurality of carriers, a reproducing means arranged in the housing, and the carrier. Transferring means for transferring the carrier between the holder and the outside of the housing, selecting means for moving a carrier to be transferred by the first transferring means in a disk array direction, and reproducing the carrier with the holder. A second transfer means for transferring between the upper means (or lower) position of the means and a positioning means for relatively positioning the carrier transferred to the upper (or lower) position of the reproducing means and the reproducing means; With the carrier on which the disc to be played is placed at the playback position, another carrier can be moved in and out of the housing.

[0009]

According to the multi-disc player of the present invention,
Multiple discs can be stored in the housing, any disc stored can be selected and played, and any disc other than playing can be replaced without interrupting playing during disc playback. Can be.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 8 is an explanatory diagram of the operation of the disc player according to the embodiment of the present invention. In FIG. 8, when reproducing a disc, the carrier (51) on which the disc is mounted is moved from the holder (52, 53) by the carrier reproducing moving means including the carrier loading mechanism (4) and the elevating means (18). It is pulled out to the right in the drawing and transferred onto the turntable of the reproduction unit (2). Note that the carrier loading mechanism (4) constitutes the second transfer means, and the elevating means (18)
Constitute carrier positioning means.

When the disc is placed on the carrier or the disc on the carrier is exchanged, the carrier selecting means (40) is moved up and down to move the desired carrier (5).
1) and then the selected carrier (51)
Is made to protrude from the housing to the left in the drawing by carrier access means including a slider tray driving gear (43) and a slider tray (6). Note that the carrier entry / exit means is the first
Of the transfer means.

Since the carrier reproducing / moving means and the carrier selecting means and the carrier entering / leaving means are provided independently, the disc reproducing state in which the carrier reproducing / moving means moves the carrier on which the disc is loaded onto the turntable. In this case as well, the carrier can be protruded from the housing by the carrier access means so that the disc can be placed or replaced.

FIGS. 1 to 4 are perspective views showing a multi-disc player according to an embodiment of the present invention. Since each is a separate diagram, if the center line extends to other diagrams, the destination is indicated by Roman numerals and lowercase alphabets in parentheses. The lowercase alphabets a to d correspond to FIGS. For example, the center line marked “to I (b)” in FIG.
(A) ". In FIG. 1, reference numeral 1 denotes a resin-molded chassis to which each drive mechanism is positioned and attached. Turntable 5
The playback section 2 of the disc having the above is fastened to the bottom of the chassis 1. The rotation of the motor 3 is transmitted to a shaft 11 via a motor pulley 8, a belt 9, and a pulley 10.

The worm 12 fixed to the shaft 11 meshes with the helical gear 13 to rotate the spur gear 14 integrated with the helical gear 13. The spur gear 14 meshes with the large diameter gear 15 shown in FIG. The large-diameter gear 15 is arranged on the back surface of the chassis 1 and meshes with a gear formed below the cylindrical cam 18. Although only one cylindrical cam 18 is shown, it is arranged at three places on the side of the chassis 1 and alternately has a flat portion and an inclined portion as shown in FIGS. 5 (a) and 5 (b). A groove is formed.

The pins 17, 17,... Erected on the chassis 16 of the carrier loading mechanism 4 shown in FIG.
Is raised and lowered by the rotation of the large-diameter gear 15. Large diameter gear 15
The positions of the slits 15a to 15g provided in the sensor are detected by the detector 19, and the rotation of the large-diameter gear 15 is controlled.

That is, at the position where the slits 15a to 15e are detected by the detector 19, the carrier loading mechanism 4 has only one slider tray 6 in each stage (only one is shown in FIG. 3, but actually five are stacked). ). The slit 15f corresponds to a state in which the carrier 51 places a disk on the turntable 5. Further, as described later, the slit 15g is used for holding a carrier 51 on which another disc is placed while the disc is being reproduced.
Corresponds to a state in which is projected out of the housing. The motor 21 is a power source for vertical movement and rotational driving of the slider tray driving gear 43 of the slider tray loading mechanism 7 shown in FIG. Switching between a state in which the gear 43 is moved up and down and a state in which the gear 43 is rotated is performed by a pin 15 h fixed to the large-diameter gear 15.
Is performed by pressing the slider 20.

As described above, the large-diameter gear 15 drives the plurality of cylindrical cams 18 to rotate the carrier loading mechanism 4 up and down by gears provided on the outer periphery thereof. Further, the large-diameter gear 15 is
5h switches between a state where the slider tray loading mechanism 7 is moved up and down and a state where the slider tray loading mechanism 7 causes the slider tray 6 to protrude. As described above, since the cam groove of the cylindrical cam 18 has the flat portion and the inclined portion formed alternately, the height of the flat portion of the cam groove can be accurately determined even by the rotational positioning of the rough cylindrical cam. The carrier 51 can be matched with the carrier 51, and the carrier 51 can be smoothly pulled out from the slider tray 6.

The rotation of the motor 21 is controlled by a motor pulley 22, a belt 23, a pulley 24, a shaft 25 and a worm 2.
6 and transmitted to the helical gear 27. Helical gear 2
The spur gear 28 integral with the gear 7 meshes with a gear 30 rotatably supported by a shaft 33 fixed to an arm 29 rotatably supported coaxially with the spur gear 28.

The arm 29 is urged counterclockwise by a spring 32 hooked between the arm 29 and the bearing 31, and the shaft 33 is engaged with the elongated hole 20a of the slider 20. The slider 20 is slidably supported on the chassis 34 via pins 34a, 34a, and is urged rearward by a spring 35 hung between the slider 34 and the chassis 34.

The gear 30 is rotated by the spur gear 28 as described above. Further, the gear 30 meshes with the gear 37 in a normal state. On the other hand, the large-diameter gear 1
When the pin 15h enters the notch portion 20b of the slider 20 and pushes the slider 20 forward, the arm 29 whose movement is regulated by the elongated hole 20a of the slider 20 rotates, so that the gear 30 As a result of being separated from 37, it comes into mesh with the gear 45.

As described above, the meshing between the gear 30, the gear 37 and the gear 45 is switched by the movement of the pin 15h due to the rotation of the large-diameter gear 15. In addition,
The operation of the pin 15h pushing the slider 20 forward is performed when the detector 19 detects the slit 15f.
It is performed during the time of detecting 5 g. That is, when the large-diameter gear 15 rotates and the detector 19 detects the slit 15f, the pin 15h is in the notch 20b of the slider 20. When the detector 19 detects the slit 15g due to the further rotation of the large-diameter gear 15, the pin 15h pushes the slider 20 forward. The state where the slit 15f is detected is the chassis 1
Is also detected by the switch 36 provided in the switch.

The gear 37 is fixed to a shaft 38. The shaft 38 rotatably supports the holder 39, and a screw formed at an upper portion thereof is screwed with a nut fixed to the holder 40. When the holder rotates, the holder 4
0 goes up and down. The gear 43 is vertically held by the holder 40,
The hexagonal center hole is fitted with the hexagonal portion of the shaft 44.

The shaft 44 is rotatably supported by the holder 39, and a gear 45 is fixed to a lower portion. Therefore,
The gear 43 is moved up and down by the rotation of the gear 37, and is rotated by the rotation of the gear 45. The state where the gear 43 is at the lowermost position is detected by the switch 41, and the height position is detected by the detector 42 provided on the holder 40 counting the slits 39a of the holder 39. The count is reset by the switch 41, and the count value corresponds to each height of the slider tray 6. The gear 43 and its raising / lowering mechanism constitute a disk selecting means.

The pin set up on the holder 39 is the slider 2
When the slider 20 moves forward, the holder 39 rotates clockwise as viewed from above in the drawing, and the gear 43 is moved to the rack of the tray guide right 47 shown in FIG. 47a.

A pin 46a erected on a tray lock arm 46 rotatably supported by the chassis 34 is engaged with the Z-shaped slot 20c of the slider 20, and when the slider 20 moves forward, the tray lock arm Reference numeral 46 rotates counterclockwise, and the five claws provided on the tray lock arm 46 separate from the cutout portions 47b of the right tray guides 47 to unlock the slider tray 6.

Next, referring to FIG.
And its accommodating part will be described. A tray guide left 49 and a tray guide right 47 are fastened to the left and right sides of the tray chassis 48, respectively, and a lock slider 50 urged by a spring 55 is slidably supported on the left rear of the tray chassis 48 so as to be slidable. 6 are constituted. The carrier 51 on which the disc is placed is composed of a tray guide left 49 and a tray guide right 4
7 are held and guided in grooves inside.

The sub-chassis 5 has five slider trays 6.
It is housed in the holder left 52 and the holder right 53 connected by 4 so as to be able to enter and exit freely. The carrier 51 can be pulled out rearward when the slider tray 6 is accommodated in the holder left 52 and the holder right 53.
Is in a state where it projects forward, as shown in FIG.
The pin 5 fixed to the lock slider 50 by pushing the lock slider 50 inward against the elasticity of the spring 55
Oa enters the recess of the carrier 51 and locks the carrier 51.

In the tray guide left 49, a hollow V-shaped recess 4 is provided.
9a and a flat concave portion 49b are provided. Open detection arm 56 and close detection arm 58
, And switches 57 and 59 face each other. When any one of the slider trays 6 protrudes, the claw 56 of the open detection arm 56
a, 56a... ride on the flat surface portion 49c, and the open state is detected.

When all the slider trays 6 are housed inside, the claws 58a, 58 of the close detection arm 58
a contact the bottom of the concave portion 49b and the switch 59 detects the closed state. Spring 6 provided on holder left 52
0 of the carrier 5 through the V-shaped recess 49a.
1 is engaged with the V-shaped notch, and the tray lock arm 4
When the tray 6 is unlocked, the position of the carrier 51 is not easily shifted. When the carrier 51 moves toward the carrier loading mechanism 4, the switches 61, 61,... Provided in contact with the springs 60 operate to detect which carrier is moving.

Next, the carrier loading mechanism 4 will be described with reference to FIG. Carrier holding member left 74 and carrier holding member right 75 for holding and guiding carrier 51
Are fastened to the chassis 16 together with the sub-chassis 70. A motor 76 is fixed to the sub-chassis 70, and rotation of the motor 76 is transmitted to a gear portion of a loading arm 71 via a pulley 77, a belt 78, a pulley 79, a gear 80 and a gear 81.
1 is rotated.

A hook 71b provided on the loading arm 71 is engaged with a guide portion 70b of the sub-chassis 70 to prevent the loading arm 71 from falling off.
The arm engaging member 72 and the hook 73 are fastened from above and below with the guide groove 70a of the sub-chassis 70 interposed therebetween.
It is movable by being guided to 0a. The protrusion 71 a of the loading arm 71 is engaged with the groove of the arm engaging member 72.

As shown in FIG. 6, the hook 73 engages with a notch of the carrier 51 whose height matches the carrier loading mechanism 4, and the carrier 51 is held by the clockwise rotation of the loading arm 71. It is pulled into the grooves of the left 74 and the right carrier holding member 75.

The embodiment of the present invention is constructed as described above. Next, the operation of the embodiment will be described. By rotating the large-diameter gear 15 by the motor 3, the carrier loading mechanism 4 is adjusted to the position of the slider tray 6 in which the disk to be played is stored. Note that this alignment is performed by the detector 19 detecting the slits 15a to 15e of the large-diameter gear.

Next, by rotating the motor 76, the carrier 51 on which the disc to be reproduced is loaded is drawn into the carrier loading mechanism 4. When the large-diameter gear is further rotated in this state, the carrier loading mechanism 4 is lowered to a position where the disk is placed on the turntable 5, and
The playback state is set. In this disc reproducing state, the slit 15f of the large-diameter gear 15 is detected by the detector 19, and the pin 15h is in the notch 20b of the slider 20.

Next, an operation of exchanging another disk in the disk reproducing state will be described. In the disk reproducing state, that is, when the pin 15h of the large-diameter gear 15
When 0 is not pressed, the gear 30 is shifted to the gear 37.
Is engaged with. Therefore, the user can move the slider tray loading mechanism 7 up and down to the position of the disk to be replaced.

Next, when the large-diameter gear 15 is rotated to the position where the slit 15g is detected by the detector 19, the pin 15h pushes the slider 20 forward. Then, the gear 30
Is separated from the gear 37 and meshes with the gear 45.
3 engages with the rack 47a of the slider tray 6,
The rotation of the motor 21 drives the slider tray 6 forward, so that the disc can be replaced.

[0037]

As described above, according to the multi-disc player of the present invention, a plurality of discs can be stored in a housing, and any disc stored therein can be selected and reproduced. During playback, any disc other than during the performance can be replaced without interrupting the performance.

Further, the shapes of the mechanism and the main body can be made smaller than those of the rotating tray type.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of a multi-disc player according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a part of a multi-disc player which is an embodiment of the present invention.

FIG. 3 is a perspective view showing a part of a multi-disc player according to an embodiment of the present invention.

FIG. 4 is a perspective view showing a part of a multi-disc player according to an embodiment of the present invention.

FIG. 5A is a front view showing a cylindrical cam of the multi-disc player, and FIG. 5B is a perspective view showing the cylindrical cam.

FIG. 6 is a perspective view showing a carrier withdrawn state of the multi-disc player.

FIG. 7 is a perspective view showing a carrier locked state of the multi-disc player.

FIG. 8 is an explanatory diagram of the operation of the multi-disc player.

[Explanation of symbols]

1 chassis, 2 playback section, 3 motor, 4 carrier loading mechanism, 5 turntable, 6 slider tray, 7 slider tray loading mechanism, 8 motor pulley, 9 belt, 10 pulley, 11 shaft, 12 worm, 13 helical gear, 14 spur gear, 15 large diameter gear, 16 chassis, 17 pins, 1
8 Cylindrical cam, 19 detector, 20 slider, 21
Motor, 22 motor pulley, 23 belt, 24
Pulley, 25 shaft, 26 worm, 27 helical gear, 28 spur gear, 29 arm, 30 gear,
31 bearing part, 32 spring, 33 shaft, 34 chassis, 35 spring, 36 switch, 37 gear, 3
8 shaft, 39 holder, 40 holder, 41 switch, 42 detector, 43 gear, 44 shaft,
45 gear, 46 tray lock arm, 46a pin, 47 tray guide right, 48 tray chassis, 4
9 Tray guide left, 50 Lock slider, 51 Carrier, 52 Holder left, 53 Holder right, 54 Subchassis, 55 Spring, 56 Open detection arm, 5
7 switch, 58 close detection arm, 59 switch, 60 spring, 61 switch, 70 chassis,
71 loading arm, 72 arm engaging member, 7
3 hook, 74 carrier holding member left, 75 carrier holding member right, 76 motor, 77 pulley, 78 belt, 79 pulley, 80, 81 gear

Claims (4)

(57) [Claims] 1. A carrier for mounting a disk,
A slider tray supporting the carrier, a holder arranged in the housing for accommodating a plurality of the slider trays, a reproducing means arranged in the housing, and a first for transferring the slider tray between the holder and the outside of the housing. Transfer means, second transfer means for transferring the carrier between the slider tray in the holder and the upper (or lower) position of the reproducing means, and the carrier transferred to the upper (or lower) position of the reproducing means; Positioning means for relatively positioning the playback means with the playback means, wherein the carrier on which the disc to be played is placed is at the playback position, and the other carrier can be moved in and out of the housing. Disc player. 2. A carrier for mounting a disk,
A slider tray supporting the carrier, a holder arranged in the housing for accommodating a plurality of the slider trays, a reproducing means arranged in the housing, and a first for transferring the slider tray between the holder and the outside of the housing. Transfer means, locking means for locking the carrier with the slider tray protruding out of the housing, and second transfer for transferring the carrier between the slider tray in the holder and the upper (or lower) position of the reproducing means. Means, and positioning means for relatively positioning the carrier transported to a position above (or below) the reproducing means and the reproducing means, wherein the carrier on which the disc to be reproduced is mounted is at the reproducing position. A multi-disc player that allows another carrier to enter and exit the housing in a certain state. 3. A holder arranged in the housing for accommodating a plurality of discs, a reproducing means arranged in the housing, a first transfer means for transferring the disc between the holder and the outside of the housing, Selecting means for moving in the disk arrangement direction to select a disk to be transferred by the first transferring means;
A second transfer means for transferring the disc to and from the position, and positioning means for relatively positioning the disc transferred to a position above (or below) the reproduction means and the reproduction means; A multi-disc player that allows another disc to enter and exit the housing in a certain state. 4. A carrier for mounting a disk,
A holder arranged in the housing for accommodating a plurality of the carriers, a reproducing means arranged in the housing, a first transfer means for transferring the carrier between the holder and the outside of the housing, and the first transfer Means for moving the carrier in the disk array direction for selecting a carrier to be transferred by the means, second transfer means for transferring the carrier between a holder and a position above (or below) the reproducing means, and the reproducing means Positioning means for relatively positioning the carrier transported to the upper (or lower) position and the reproducing means, wherein the carrier on which the disc to be reproduced is mounted is in the reproducing position and another A multi-disc player that allows the carrier to enter and exit the housing.