JP2933987B2 - Disc player loading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player loading apparatus capable of selectively reproducing a plurality of types of discs having different external shapes such as a compact disc and a video disc.

2. Description of the Related Art Conventionally, as a disc player capable of playing both a compact disc and a video disc, diameters of 30 cm, 20 cm, 12 cm, and 8 cm are concentrically provided on a tray provided in the casing of the disc player so as to be slidable in the front-back direction. Are provided in order, and a disk is stored in one of the disk storage units and the disk is reproduced. However, this type of disc player cannot accommodate a plurality of types of discs at the same time and sequentially reproduce them.

On the other hand, as a disk player for storing a plurality of disks of the same type and selecting and playing one of the disks, disk playback means having one pickup,
There is known a combination of a loading device that selects one of a plurality of types of discs and conveys the disc to a reproduction position. As a loading device, a magazine type changer, a turret type changer, and the like are known.

There is also known a double disc player including two sets of disc reproducing means and disc loading devices.

In the magazine type changer, one of a plurality of discs arranged in the magazine is taken out by an arm and transported to a reproduction position.

The turret type changer is for arranging a plurality of disks in a plane on a single turret disk in a ring shape, and rotating the turret disk to select a disk and transport it to a reproduction position.

However, in the magazine type changer, since a plurality of discs are arranged in a magazine substantially parallel to the disc reproducing means, the disc is conveyed to the reproducing position by turning the arm. Therefore, there is a problem that the apparatus becomes large. Also, the turret type changer has a plurality of disks arranged in a ring on a turret disk substantially parallel to the disk reproducing means, and is conveyed to a reproduction position by rotating the turret disk. When used together with a compact disk having a diameter of 12 cm, the entire structure becomes considerably large, and there is a problem that miniaturization becomes difficult.

Further, since the double disc player has two sets of disc reproducing means and disc loading devices, there is a problem that it is expensive and it is difficult to reduce the size.

The present invention solves such a conventional problem, in which at least two types of disks having different outer diameters can be simultaneously stored and selectively reproduced, and the structure can be simplified and the size can be reduced. An object of the present invention is to provide a loading device for a disc player.

Means for Solving the Problems In order to achieve the above object, a loading device for a disc player according to the present invention accommodates at least two types of discs having different outer diameters at the same time and selectively moves each disc to a disc playback position. A first tray, which is slidably provided in the housing of the disc player in the front-rear direction for carrying, and stores a disk having a larger outer diameter, and is slidable in a lower part of the first tray in the front-rear direction of the disc player. And a carrier that allows the optical pickup to move with respect to the disc stored in the first tray, and a second tray that is supported by the carrier and stores the smaller disc.

According to the present invention, the second tray is supported by the carrier so as to be rotatable in the horizontal direction, and includes a plurality of disk storage sections for storing a plurality of disks arranged in a plane.

Effect of the Invention According to the present invention, at least two types of disks having different outer diameters are accommodated in the upper and lower stages in a stacked manner, and one of them is selected and transported to the reproducing position, so that the structure is simple and the size can be reduced. it can. In addition, the first tray for storing the disk with the larger outer diameter is arranged on the upper side, and the second tray for storing the disk with the smaller outer diameter is arranged on the lower side. A space can be created, and by placing an optical pickup there,
When playing the disc stored on the tray, it is possible to prevent the second tray from being in the way.

According to the present invention, a plurality of disk storage sections are provided in the second tray, and one disk is selected by rotating the second tray, so that the number of stored disks can be increased.

Hereinafter, an embodiment of a disc player loading device according to the present invention will be described with reference to the drawings.

1 to 3 are perspective views of the disk tray assembly in one embodiment of the present invention at the time of main operation, FIG. 4 is an external perspective view of a disk player in one embodiment of the present invention, and FIG. FIG. 6 is an exploded perspective view of a disc tray assembly in one embodiment of the present invention, FIG. 6 is an exploded perspective view of a disc tray assembly drive mechanism in one embodiment of the present invention, and FIGS. FIG. 6 is a plan view showing each operation state of the disc tray assembly in one embodiment of the present invention.

First, in FIG. 4, reference numeral 1 denotes a housing of a disk player, 1a denotes a front panel of the housing 1, 2 denotes an operation unit having various operation buttons provided on the front panel 1a, and 3 denotes a front panel. An opening for inserting and removing a disk tray assembly provided in the panel 1a. 4 is a first tray for accommodating a large-diameter disk, 5 is a second tray for accommodating a small-diameter disk, 6 is a second tray for accommodating a second tray and is provided so as to be able to be taken in and out of a lower portion of the first tray 4. A career.

Next, the disc tray driving mechanism and the carrier driving mechanism of the disc tray assembly 100 will be described with reference to FIG. In FIG. 5, the first tray 4 has a 30 cm disc receiving recess 4 a, a 20 cm disc receiving recess 4 b, a 12 cm disc and a circular rectangular opening 4 for the escape of the optical pickup.
c, Carrier recess 4d for incorporating other components
, And can reciprocate in the front-back direction of arrows AB and the up-down direction of arrows CD.

The second tray 5 has a set of 12 cm disc receiving recesses 5a, 5
a 'and 8 cm disc receiving recesses 5b, 5b', slots 5c, 5c 'for a turntable and an optical pickup which constitute a part of disc reproducing means, rotation for rotating the second tray 5 A central hole 5d serving as the center, a fixed gear portion 5e for rotating the second tray 5 to carry the disc to a predetermined position, and engaging with a tray regulating groove 4e of the first tray 4 to regulate the rotation of the second tray 5 Regulating ribs 5f, 5g, 5h, 5i, etc. The regulating ribs 5f and 5g are located in the center hole 5d of the fixed gear 5e.
And the regulating ribs 5h and 5i are respectively distributed to the right and left by 60 ° with respect to the straight lines, and the disk receiving recesses 5a and 5
a 'is also distributed to the left and right by 60 ゜ each. The second tray 5 has a reset position where the regulating ribs 5f and 5g coincide with the directions of arrows AB around the center hole 5d of the fixed gear portion 5e, and a clockwise E direction from this reset position.
{3}, a first disk selection position where the disk receiving recess 5a is selected by rotation and a second disk selection position where the other disk receiving recess 5a ′ is further rotated by 120 ° in the same direction.
Each point can be selected, and when the reset position is selected, its leading edge 5j is
The outer diameter shape is formed so as to coincide with the front edge 6l.

The carrier 6 includes a tray receiving recess 6 a for accommodating the second tray, a rotation support shaft 6 b pivotally mounted on a center hole 5 d of the second tray 5, a rotation support shaft pivotally mounted on the intermediate gear 7 and the cam gear 8. 6c and 6d, a rack portion 6e which engages with the drive gear 13 when the drive gear 13 for transmitting the driving force provided to the right guide plate 14 via the swing plate 22 swings to the position shown by the broken line. ,
Guide pin 13 provided on the rotation center of the drive gear 13
a gear guide groove 6f for restricting the drive gear 13 from swinging in the counterclockwise direction of the arrow F by the swinging plate 22 by engaging with the gear a, and being provided on the right guide plate 14; The carrier guide groove 6g, which engages with the carrier guide shaft 15 and guides the sliding of the carrier 6 in the direction of the arrow AB, is the end point of the gear guide groove 6f, and at this point, the drive gear 13 is driven by the arrow E The end of the gear guide groove 6h, which can swing in both the -F direction, engages with the respective convex portions 17a, 18a, 19a of the switch levers 17, 18, 19, and the switch 2
1 has a lock hole 6k for engaging the positioning cam portions 6i, 6j of the carrier 6 and the convex portion 23a of the lock lever 23 to lock the carrier 6 to the first tray 4. The carrier 6 is accommodated in the carrier recess 4d below the first tray 4 with the second tray 5 mounted thereon, and the right guide plate 14 and the left guide plate 16 are screwed from below to form the first tray.
It is movable in the direction of arrow AB relative to the tray 4. The cam gear 8 engages with the drive gear 13 when the drive gear 13 swings in the direction of arrow E, and rotates the second tray 5 synchronously via the relay gear 7.

The motor 9 is rotatable forward and reverse and is mounted on a right guide plate 14. The motor 9 rotates the drive gear 13 via the belt 10, the pulley gear 11, and the intermediate gear 12, and rotates the rotation center 12 a of the intermediate gear 13. The drive gear 13 installed on the center swing plate 22 swings in the direction of arrow EF. The switch levers 17 and 18 are overlapped with each other and
17b and 18b are pivotally connected to a rotation support shaft 26 of the right guide plate 14, and the switch lever 19 has a center hole 19b pivotally connected to a rotation support shaft 27 of the right guide plate 14. The switch board 20 is also mounted on the right guide plate 14.

The lock lever 23 has two shaft portions 23b on both ends supporting portions 25a of a T-shaped groove 25 formed in the rear portion of the first tray 4 by arrows GH.
The lock lever spring 24
When the carrier 6 is accommodated in the first tray 4 at a predetermined position, the projection 23a engages with the lock hole 6k to move the carrier 6 to the first tray 4. It has a locking mechanism.

Next, the disc tray assembly drive mechanism will be described with reference to FIG. In FIG. 6, the disc tray assembly 100 has guide grooves 4 formed on both sides of the first tray 4.
f, 4g, by engaging the tray guide shaft 125 of the tray guide 115 attached to the loading board 101,
It is attached so as to be slidable in the directions of arrows AB. The tray guide 115 has a tray feed gear 30 pivotally mounted on a rotation shaft 116. The tray feed gear 30 is a rack of the left guide 16 whose large diameter portion 30 a is screwed to a lower portion of the first tray 4. The small-diameter portion 30b meshes with the cam gear 105 pivotally attached to the loading board 101 while meshing with the portion 16a (see FIG. 5). The cam gear 105 receives power transmitted from a motor 102 fixed to the loading board 101 via a pulley 103 and a gear 104, and receives a power from the tray feed gear 30 and a rack portion of the left guide plate 16.
The disc tray assembly 100 is driven in the front-rear direction indicated by arrows AB through 16a. The cam gear 105 also drives an elevating mechanism having a cam plate 106 and an elevating lever 109 to drive the disk tray assembly 100 up and down with arrows CD.

A spindle motor 119 is fixed to the loading board 101, and a disc clamper (not shown) is attached to the spindle motor 119 to rotate the disc. 31 is optical pickup 32
, And is disposed at a position facing the circular rectangular opening 4c of the first tray 4.

In the loading device configured as described above,
First, an outline of the mounting / dismounting operation of each disk will be described with reference to FIGS.

In FIG. 1, a first tray 4 is accommodated in a housing 1 of a disc player, and a second tray 5 at a reset position and a carrier 6 supporting the same are at a first position P1 protruding from the opening 3. In this state, a small-diameter compact disc (including a CDV) mounted on the second tray 5 is used.
0 becomes exchangeable.

Next, in FIG. 2, the first tray 4 is
In this state, the large-diameter video disc 40 mounted on the first tray 4 can be replaced.

FIG. 3 shows a state where the first tray 4 and the carrier 6 are pulled into the housing 1 by using the driving means from the state shown in FIGS. FIG.

In addition, there is a second position P2 for rotating the second tray 5 with respect to the carrier 6 by retracting the carrier 6 further than the position P3.

With the above operation, the video disk 40 mounted on the first tray 4 and the compact disk 50 mounted on the second tray 5 can be stored at the same time.

Next, the operation of the disk loading apparatus for replacing a disk will be described with reference to FIGS. 5 and 7 to 15.

FIG. 7 shows the same state as FIG. 1, and shows a state in which the carrier 6 is at the position P1 and the compact disc 50 mounted on the second tray 5 is detachable. At this time, the drive gear 13 is at a position shown by a broken line in FIG. 5, and the guide pin 13a and the gear guide groove 6f of the carrier 6 are engaged to restrict swinging, and are in a state of being engaged with the rack portion 6e. . Also,
The regulating rib 5g of the second tray 5 is engaged with the tray regulating groove 4e of the first tray 4, and regulates the rotation of the second tray 5 at this position.

Next, the operation of transporting the compact disc 50 placed on the second tray 5 to the disc reproduction position P2 from this state will be described. Now, the disc receiving portion of the second tray 5
The disk mounted on the disk 5a is referred to as a disk 50a, and the disk mounted on the disk receiving portion 5a 'is referred to as a disk 50b. First, in order to transport the disc 50a to the reproduction position, the operator performs an operation for supporting the reproduction of the disc 50a on the operation unit 2. Then, the motor 9 rotates counterclockwise in FIG. 5, and this driving force is transmitted to the driving gear 13 via transmission means such as the belt 10, the pulley gear 11, the intermediate gear 12, and the like, and the driving gear 13 Rotate around. At this time, due to the action of the swinging plate 22 and the friction spring (not shown), the drive gear 13 tries to swing in the arrow 6E with the rotation center of the intermediate gear 12 as a branch, but is restricted by the gear guide groove 6f, and the rack 6e The carrier 6 is retracted in the direction of arrow B while meshing with. As a result, the carrier 6 and the second tray 5 are stored inside the first tray 4 in the housing 1 and retreat to the second position P2 as shown in FIG. When reaching this position P2, the drive gear 13 which has been regulated by the gear guide groove 6f reaches the gear guide groove end point 6h,
The regulating rib 5g, which has fixed the rotation of the second tray 5, comes out of the tray regulating groove 4e, and the drive gear 13 can swing in both directions of arrows EF. Then, since the motor 9 is still rotating in the counterclockwise direction, the drive gear 13 separates from the rack portion 6e, rotates in the direction of arrow E, and now meshes with the cam gear 8. This driving force is applied to the relay gear 7
Through a fixed gear portion 5e provided on the lower surface of the second tray 5.
To rotate the second tray 5 in the clockwise E direction. Then, the second tray 5 rotates 120 ° and stops,
The state shown in FIG. 9 is obtained by selecting the disk selection position. Next, when the motor 9 starts rotating in the reverse direction and starts rotating clockwise, the drive gear 13 swings in the direction of arrow F on the opposite side to re-engage with the rack portion 6e to advance the carrier 6 in the direction of arrow A. Then, the carrier 6 and the second tray 5 are slightly returned to the third position P3, and the disc 50a on the second tray 5 is transported to the reproduction position P, and the state shown in FIG. 10 is set. At this time, the regulating rib 5i engages with the tray groove 4e to regulate the rotation of the second tray 5, and the convex portion 23a of the lock lever 23 engages with the lock hole 6k of the carrier 6 so that the disc tray assembly 100
Are integrated. Next, the disk tray assembly 100 is vertically lowered by the disk tray assembly drive mechanism shown in FIG. 6, and the disk 50a is carried to the focus position, and the optical pickup 32 reproduces the disk.

Next, a case where the disk 50b is reproduced from the reproduction state of the disk 50a will be described. When the operator performs an operation for supporting the reproduction of the disc 50b with the operation unit 2, the disc tray assembly 100 is vertically moved by the disc tray assembly driving mechanism, and returns to the state shown in FIG. At this time, the drive gear
Reference numeral 13 denotes a state in which the swing is regulated by the gear guide groove 6f and meshes with the rack portion 6, and when the motor 9 rotates in the counterclockwise direction, the carrier 6 is retracted in the direction of arrow B, and the state shown in FIG. To the second position P2. This allows the regulation rib 5i
The second tray 5 is rotatable, the drive gear 13 reaches the gear guide groove end point 6h, rotates in the direction of arrow E and meshes with the cam gear 8. This driving force moves the second tray 5 clockwise through the intermediate gear 7 for 12 seconds.
The disk is rotated by 0 °, and as shown in FIG. 11, the second disk selection position where the disk 50b is replaced with the disk 50a is selected.
Here, the motor 9 rotates in the reverse direction and rotates in the clockwise direction, and the drive gear 13 swings in the direction of arrow F to re-engage with the rack 6e, and advances the carrier 6 in the direction of arrow A to the third position.
Proceeding to P3, the disc 40B on the second tray 5 is transported to the reproduction position P, and the state shown in FIG. 12 is set. In this state, the regulating rib 5h engages with the tray regulating groove 4e to regulate the rotation of the second tray 5, and the disc tray assembly 100 is integrated by the lock lever 23. Next, the disc tray assembly 100 is lowered vertically by the disc tray assembly drive mechanism, and the disc 50b is carried to the focus position, and the optical pickup 32 reproduces the disc 50b.

Next, from the reproduction state of the disc 50b, the first tray 4
A case where the above video disc 40 is replaced will be described. When the operator performs an operation for replacing the video disk 40 with the operation unit 2 this time, the disk tray assembly 100 is vertically raised by the disk tress assembly struggling mechanism, and returns to the state shown in FIG. At this time, the drive gear 13 is restrained from swinging by the gear guide groove 6f and is in a state of being meshed with the rack portion 6e, and the motor 9 rotates counterclockwise to move the carrier 6 to the second position in the arrow B direction. Retreat to P2. At this second position P2, the regulating rib 5h comes out of the tray regulating groove 4e, and the second tray 5 becomes rotatable.
Reaches the gear guide groove end point 6h, rotates in the direction of arrow E, and meshes with the cam gear 8. This driving force rotates the second tray 5 by 120 ° in the clockwise direction via the intermediate gear 7 to return the second tray 5 to the initial setting position, and the state shown in FIG. 13 is obtained. At this point, the motor 9 rotates in the reverse direction and rotates clockwise, the drive gear 13 rotates in the direction of arrow F and re-engages with the rack 6e, and moves the carrier 6 in the direction of arrow A to the third position P3.
Until the state shown in FIG. 14 is obtained. At this time, the regulating rib 5f engages with the tray regulating groove 4e to fix the rotation of the second tray 5. In this state, the disc tray assembly drive mechanism further advances the disc tray assembly 100 in the direction of arrow A, protrudes from the opening 3 of the front panel 1a, and conveys it to the fourth position P4 as shown in FIG. And
The exchange of the video disk 40 placed on the first tray 4 becomes possible. At this time, the compact disc 50a and the disc 50b placed on the second tray 5 remain housed in the first tray 4 because the disc tray assembly 100 is integrated, and And the video disc 40 on the first tray 4 can only be replaced.

Next, a case in which the disc 40 placed on the first tray 4 is reproduced will be described. When the operator performs an operation of instructing the reproduction of the disc 40 with the operation unit 2, the disc tray assembly 100 is moved backward in the direction of arrow B to the third position P3 by the disc tray assembly driving mechanism, and The video disk 40 is returned to the state shown in FIG. Thereafter, the disc 50 placed vertically and carried on the first tray 4 is carried to the focus position,
The reproduction of the video disc 40 is performed.

As described above, according to the embodiment, the video disk 40 having a large outer diameter is stored in the upper first tray 4, the compact disk 50 having a small outer diameter is stored in the second disk 5, and the first tray 4 is stored in the disk. A second tray 5 is provided rotatably on a carrier 6 provided slidably in the front-rear direction below the first tray 4 while being slidably provided in the player's housing 1 in the front-rear direction. As a free space, the movement of the pickup 32 is not hindered, and when playing the video disc 40, the compact disc 50 is retracted from the playback position. Can be selectively conveyed to the disc playback position, thereby realizing a compact and compact disc player loading device. be able to.

The second tray 5 is provided with two disc receiving recesses 5a and 5a 'in the direction of 120.degree.
When located at the first and third positions P3, the outer shape is formed such that the front edge 5j of the second tray 5 coincides with the front edge 61 of the carrier 6, and the second tray 5 accommodates the disc stored therein. 3rd position when rotating to select
Since it rotates at the second position P2 drawn inward from P3, a compact and simple structure of a disc player loading device with a reduced dimension from the rotation center of the second tray 5 to the front panel 1a of the player is realized. be able to.

Effect of the Invention As described above, the loading device for a disc player according to the present invention includes a first tray that is slidably provided in the casing of the disc player in the front-rear direction and stores a disc having a larger outer diameter. It is provided at the bottom of one tray so as to be slidable in the front-rear direction of the disc player,
Since there is provided a carrier for allowing the movement of the optical pickup with respect to the disc stored in the first tray and a second tray supported by the carrier for storing the smaller disc, at least two types having different outer diameters are provided. Can be stored simultaneously, and the respective discs can be selectively transported to the disc reproducing position, thereby realizing a disc player loading device having a simple structure and a compact size.

According to the present invention, a plurality of disk storage units are provided in the second tray, and disks are selected by rotating the second tray, so that the number of disks stored can be increased.

[Brief description of the drawings]

FIGS. 1, 2, and 3 are perspective views of a disc tray assembly showing one embodiment of the present invention at the time of main operation, FIG. 4 is an external perspective view of a disc player according to an embodiment of the present invention, FIG. 5 is an exploded perspective view of a disc tray assembly in one embodiment of the present invention, FIG. 6 is an exploded perspective view of a disc tray assembly driving mechanism in one embodiment of the present invention, and FIG.
FIG. 15 to FIG. 15 are views showing each operation state of the disc tray assembly in one embodiment of the present invention. 1 ... Disc player housing, 1a ... Front panel,
2 ... operation part, 3 ... opening, 4 ... first tray, 5 ...
... second tray, 6 ... carrier, 7 ... relay gear, 8 ...
... Cam gear, 9 ... Motor, 10 ... Belt, 11 ... Pulley gear, 12 ... Intermediate gear, 13 ... Drive gear, 14 ... Right guide plate, 16 ... Left guide plate, 17, 18, 19 ... ... switch lever, 20 ... switch board, 21 ... switch, 22 ... rocking plate, 23 ... lock lever, 30 ... tray feed gear, 31
…… Optical pickup driving means, 32 …… Optical pickup,
101 ... Loading board, 102 ... Motor, 105 ...
Cam gear, 106: Cam plate, 115: Tray guide, 119
…… Spindle motor, 125 …… Tray guide shaft, P
...... Disc playback device, P1 ... first position, P2 ... second
, P3... Third position, P4... Fourth position.

Claims (6)

(57) [Claims] 1. A loading device for a disc player for simultaneously storing at least two types of discs having different outer diameters and selectively transporting each disc to a disc playback position, wherein the loading device is mounted on a casing of the disc player. A first tray slidably provided in the first direction for storing a disk having a larger outer diameter, and a lower portion of the first tray slidably provided in the front-rear direction of the disk player and stored in the first tray. A loading device for a disc player, comprising: a carrier that permits movement of an optical pickup with respect to a disc; and a second tray that is supported by the carrier and stores a smaller disc. 2. The disk according to claim 1, wherein the second tray is supported by the carrier so as to be rotatable in a horizontal direction, and includes a plurality of disk storage portions for storing a plurality of disks arranged in a plane. Player loading device. 3. The second tray has two disk storage portions disposed in a direction of 120 ° from the center of rotation, and the second tray is rotated by 120 ° at a time, and the two trays stored in the respective disk storage portions are rotated by 120 °. A disk tray driving means for selectively transporting a disk to a disk reproducing apparatus.
The loading device of the disc player according to the above. 4. A method according to claim 1, wherein a carrier is pulled out from the first tray, a second position is drawn into the first tray to rotate the second tray, and the carrier is located in the first tray. 4. The loading device for a disc player according to claim 3, further comprising carrier driving means for driving to a third position which is a disk reproduction position closer to the first position side than the second position. 5. The disc player according to claim 3, further comprising means for canceling the restriction on the rotation of the second tray only when the second tray is located at a rotatable second position. Loading device. 6. An outer shape of the second tray so that a front edge of the second tray substantially coincides with a front edge of the carrier when the carrier is located at the first position and the third position. The loading device for a disc player according to claim 5, wherein