JP2933988B2 - Disc player loading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can store a plurality of discs such as a compact disc and a video disc, and can sequentially select any of the stored discs for continuous reproduction. The present invention relates to a loading device for a disc player.

2. Description of the Related Art Conventionally, as a loading device of a disc player capable of selectively reproducing a plurality of discs, a slide table provided so as to be able to be taken in and out of a player housing in a horizontal direction, and a rotatable device mounted on the slide table. A turret-type disc changer is provided, which is provided with a rotating disc tray capable of storing a plurality of discs arranged on a plane and capable of storing the discs. Kaisho 62-
It is known in, for example, JP-A-192062.

However, in the turret-type disc changer, the rotation center of the tray for selecting a plurality of discs is drawn from the front of the player with a dimension at least equal to or greater than the maximum radius required for rotation of the tray. Since it must be located at an uneven position, the size from the center of rotation to the front of the player becomes large, and there is a problem that miniaturization becomes difficult.

SUMMARY OF THE INVENTION The present invention is to solve such a conventional problem, and to provide a disc player loading device which can be reduced in size by shortening a dimension from a rotation center of a tray to a front surface of the player and which has a simple structure. With the goal.

Means for Solving the Problems According to the present invention, in order to achieve the above object, a carrier provided slidably in a front-rear direction with respect to a housing of a disc player, and a carrier rotatably supported in a horizontal direction by the carrier. A non-circular tray having a plurality of disk storage sections on the same circle with respect to the center of rotation, a disk tray driving means for rotating the tray, and a first position where the carrier is pulled out of the housing and drawn into the housing. And a carrier driving means for driving the tray to a third position, which is a disk reproduction position within the housing and closer to the first position than the second position. is there.

Operation According to the present invention, the dimension from the center of rotation of the tray to the front surface of the player can be shortened by the above configuration, and a loading device for a disc player which has a simple structure and can be reduced in size can be realized. That is, the non-circular tray according to the present invention is located at the third position when located at the playback position of the disc, and the distance from the center of rotation to the front of the player is short, so that a plurality of discs can be selected. When the player rotates at the second position, the distance from the center of rotation to the front of the player is longer. Therefore, even if the dimension from the center of rotation to the front surface of the player is shorter than the maximum radius required for the rotation, rotation within the player is possible, and the device can be downsized by a simple structure.

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 non-circular second tray for accommodating a small-diameter disk, and 6 is a second tray for accommodating the second tray and can be put in and out of the lower portion of the first tray 4. It is a carrier provided in.

The loading device in the present embodiment is configured as a type in which a large-diameter disk is stored in the first tray 4 and a small-diameter disk is stored in the second tray 5, respectively. The second tray 5 stores a plurality of discs, and the carrier 6 supports the second tray.
May be provided so as to be able to be directly put into and taken out of the housing 1.

Next, the disc tray driving mechanism and the carrier driving mechanism of the disc tray assembly 100 in the above embodiment will be described with reference to FIG. In FIG. 5, the first tray 4 includes a 30 cm disc receiving recess 4a, a 20 cm disc receiving recess 4b, a 12 cm disc and a circular rectangular opening 4c for escape of an optical pickup, and a 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 non-circular second tray 5 has a set of 12 cm disc receiving recesses 5a, 5a 'and 8 cm disc receiving recesses 5b, 5b', and a long hole for a turntable and an optical pickup which constitute a part of the disc reproducing means. Openings 5c, 5c ', a central hole 5d serving as a rotation center when rotating the second tray 5,
A fixed gear portion 5e for rotating the second tray 5 to carry the disc to a predetermined position, and a first gear portion 5e for regulating the rotation of the second tray 5
Regulating ribs 5f, 5g, 5 engaging with the tray regulating groove 4e of the tray 4
h, 5i, etc. The regulating ribs 5f and 5g are on a straight line parallel to the arrow AB direction through the fixed gear portion 5e through the center hole 5d,
The restricting ribs 5h and 5i are respectively distributed left and right by 60 ° with respect to the straight line, and the respective disc receiving concave portions 5a and 5a ′ are also distributed left and right by 60 °. The second tray 5 is provided with a regulating rib centered on the center hole 5d of the fixed gear portion 5e.
A reset position in which 5f and 5g coincide with the directions of arrows AB, a first disc selection position in which the disc receiving recess 5a is selected by rotating 120 ° in the clockwise E direction from the reset position, and
Rotate further 120 ° in the same direction and rotate the other disk receiving recess 5
The three points at the second disk selection position where a 'has been selected can be selected. When the reset position is selected, its outer shape is adjusted so that its leading edge 5j coincides with the leading edge 61 of the carrier 6. Are formed.

The carrier 6 includes a tray receiving recess 6 a for accommodating the second tray 5, a pivot 6 b pivotally attached to a center hole 5 d of the second tray 5, a pivot pivotally attached to the intermediate gear 7 and the cam gear 8. A rack that engages with the drive gears 13 when the drive gear 13 for transmitting the driving force provided to the support shafts 6c and 6d and the right guide plate 14 via the swing plate 22 swings to a position indicated by a broken line. Part 6
e, engages with the guide pin 13a provided on the rotation center of the drive gear 13, and the drive gear 13 swings in the counterclockwise direction of the arrow F by the swing plate 22 to engage with the rack portion 6e. And a carrier guide shaft 15 provided on the right guide plate 14 to slide the carrier 6 by arrows AB.
6g carrier guide groove to guide in the direction, the gear guide groove 6f
And at this point the drive gear 13 is driven by the arrow EF
The positioning cam portion 6i, of the carrier 6 that engages with the projections 17a, 18a, 19a of the gear guide groove 6h, which can swing in either direction, and the switch portions 17, 18, 19, and operates the switch 21. 6
j, a lock hole 6k for engaging the projection 23a of the lock lever 23 to lock the carrier 6 to the first tray 4. The carrier 6 holds the first tray 4 with the second tray 5 mounted.
Of the right guide plate 14
By screwing the left guide plate 16 from below, the left guide plate 16 can be moved relative to the first tray 4 in the direction of arrows AB. 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 12. 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 pivot 26 of the right guide plate 14, and the switch lever 19 has a center hole 19b pivotally attached to a pivot 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
In this state, a load is applied in the direction of arrow G, and at a predetermined position where the carrier 6 is accommodated in the first tray 4, the projection 23 a engages with the lock hole 6 k 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 in the up and down directions indicated by 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 in which the first tray 4 and the carrier 6 are pulled into the housing 1 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 from this state to the disc reproducing position P2 will be described. Now, the disk receiving portion 5a of the second tray 5
The disk mounted on the disk 50a and the disk receiving portion 5
The disk placed on a 'is referred to as a disk 50b. First,
In order to transport the disc 50a to the reproduction position, the operator performs an operation to instruct reproduction of the disc 50a on the operation unit 2. Then, the motor 9 rotates counterclockwise in FIG. 5, and this driving force is applied to the belt 10 and the pulley gear 1.
1, transmitted to the drive gear 13 via transmission means such as the intermediate gear 12, and the drive gear 13 rotates counterclockwise. At this time, by the action of the swinging plate 22 and a friction spring (not shown), the drive gear 13 is rotated about the rotation center of the intermediate gear 12 as a fulcrum.
Tries to swing in the direction of arrow E, but is restricted by the gear guide groove 6f, and retreats the carrier 6 meshed with the rack portion 6e in the direction of arrow B. 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. This position P2
At this point, the drive gear 13 that has been regulated by the gear guide groove 6f reaches the gear guide groove end point 6h, and the regulation rib 5g that fixed the rotation of the second tray 5 is moved from the tray regulation groove 4e. The drive gear 13 is in the state of being escaped, and the arrow EF
It can swing in either direction. So, motor 9
Is still rotating counterclockwise, so drive gear 13
Is separated from the rack portion 6e and pivots in the direction of arrow E, and this time meshes with the cam gear 8. This driving force is transmitted to the fixed gear portion 5e provided on the lower surface of the second tray 5 via the relay gear 7, and rotates the second tray 5 in the clockwise E direction.
Then, the second tray 5 is rotated by 120 ° and stopped, and the first disk selection position is selected, and the state shown in FIG. 9 is obtained. Then
When the motor 9 reverses and starts to rotate clockwise,
As a result, the drive gear 13 swings in the direction of the arrow F on the opposite side and reassembles with the rack 6e, advances the carrier 6 in the direction of the arrow A, and moves the carrier 6 and the second tray 5 to the third position P3.
Then, the disc 50a on the second tray 5 is transported to the reproduction position P, and is brought into the state shown in FIG. 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
And the disc tray assembly 100 is integrated with the lock hole 6k. Next, the disk tray assembly 100 is vertically lowered by the disk tray assembly driving 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 instructing the reproduction of the disc 50b on the operation unit 2, the disc tray assembly drive mechanism vertically raises the disc tray assembly 100 and returns to the state shown in FIG. At this time, drive gear 13
9 is in a state in which swinging is restricted 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. Return to the second position P2. As a result, the restricting rib 5i comes out of the tray restricting groove 4e, the second tray 5 becomes 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 drive feeds the second tray 5 clockwise through the intermediate gear 7 for 120 seconds.
Then, the disk 50b is turned to a state where the second disk selection position where the disk 50b is replaced with the disk 50a is selected as shown in FIG. 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 mesh with the rack 6e again, and advances the carrier 6 in the direction of arrow A to the third position P3.
The disc 40b on the second tray 5 to the playback position P
To the state shown in FIG. 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 moved upward by the disk tress assembly driving mechanism, and returns to the state shown in FIG. The drive gear 13 is restrained from swinging by the gear guide groove 6f and is engaged with the rack portion 6e, and the motor 9 rotates counterclockwise to move the carrier 6 in the arrow B direction to the second position. Change 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.
13 reaches the gear guide groove end point 6h, turns in the direction of arrow E and meshes with the cam gear 8. This driving force rotates the second tray 5 clockwise by 120 ° via the intermediate gear 7,
The tray 5 is returned to the initial setting position, and the state shown in FIG. 13 is obtained. Here, the motor 9 rotates in the reverse direction and rotates clockwise, and the drive gear 13 rotates in the direction of arrow F to rotate the rack 6e.
And the carrier 6 is moved to the third position in the direction of arrow A.
Move forward to P3, and 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. Thus, the video disc 40 placed on the first tray 4 can be exchanged. At this time, since the compact disc 50a and the disc 50b placed on the second tray 5 are integrated with the disc tray assembly 100,
The video disc 40 on the first tray 4 can be replaced only because the video cassette 40 is kept in the inside and cannot be contacted from the outside.

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 is lowered vertically and carried to the focus position of the disc 50 placed on the first tray 4,
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. In order to prevent the movement of the optical pickup 32 as an empty space and to retract the compact disc 50 from the playback position when playing the video disc 40, a plurality of discs having different diameters are simultaneously stored and A disc player loading device that can selectively transport a disc to a disc playback position, has a simple structure, and can be downsized. Can be

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.

The non-circular second tray according to the present invention is not limited to the above-described embodiment, but may be formed in various shapes including a semicircle, a rectangle, and the like, and the number of disk storage units is arbitrary.

Effect of the Invention As described above, the disc player loading device of the present invention comprises a carrier provided slidably in the front-rear direction with respect to the casing of the disc player, and a carrier rotatably supported by the carrier so as to be rotatable in the horizontal direction. A non-circular tray having a plurality of disk storage sections on the same circle with respect to the center, a disk tray driving means for rotating the tray, and a first position where the carrier is pulled out of the housing and drawn into the housing. Since there is provided a second position for rotating the tray and carrier driving means for driving to a third position, which is a disk reproduction position within the housing and closer to the first position than the second position, A plurality of discs can be stored and these can be sequentially selected for continuous playback, and the dimensions from the center of rotation of the tray to the front of the player can be reduced. A compact and simple structure of a disc player loading device that can be shortened can be realized.

[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 (4)

(57) [Claims] A carrier provided so as to be slidable in the front-rear direction with respect to a housing of the disc player; and a plurality of disc storage portions supported on the carrier so as to be rotatable in the horizontal direction and on the same circle with respect to the center of rotation. A non-circular tray, a disk tray driving means for rotating the tray, a first position where the carrier is pulled out of the housing, and a second position where the carrier is drawn into the housing and rotates the tray. And a carrier driving means for driving to a third position within the housing, which is a disk reproduction position closer to the first position than the second position. 2. The disk storage portion of the tray is positioned with respect to the center of rotation.
The loading device for a disc player according to claim 1, wherein the loading device is arranged in a 120 ° direction. 3. The loading device for a disc player according to claim 2, further comprising means for canceling the restriction on the rotation of the tray only when the tray is located at the second rotatable position. 4. The tray according to claim 1, wherein the outer diameter of the tray is determined such that the leading edge of the tray substantially coincides with the leading edge of the carrier when the carrier is located at the first position and the third position. Item (2) or (3), the disc player loading device.