JP2757527B2 - Disc loading device for disc player - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading apparatus for a disc player capable of playing a plurality of discs such as a compact disc.

2. Description of the Related Art Conventionally, as a disc player capable of selectively playing a plurality of discs, a plurality of discs are stored in a magazine and mounted on the player body, and selectively taken out of the magazine by a transport means and mounted on a playing means. Magazine type disc changer (for example,
No. 62-82553) and a turret type in which a plurality of discs are placed on a slide table to be taken in and out of the main body, and the discs are selectively mounted on the playing means using a rotating disc tray which rotates and played. There has been a disc changer (for example, see Japanese Patent Application Laid-Open No. 62-192062).

There has also been a double disc player or the like having two sets of disc loading mechanisms and disc playing means.

However, the above-described disc changer has a magazine or turret-type disc loading mechanism, so that the entire structure of the disc player becomes large, making it difficult to reduce the size of the disc player. It was impossible to replace a disc that was not playing.

Also, since the double disc player has two sets of disc loading mechanism and disc playing means, those who are not playing can replace the disc, but it is expensive and the whole structure becomes large and the size can be reduced. There was a problem that it became difficult.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and has a simple structure and can be miniaturized, and exchanges a non-playing disc while playing one of a plurality of discs selected. It is an object of the present invention to provide a disc loading device for a possible disc player.

Means for Solving the Problems In order to solve the above problems, a disc loading device for a disc player according to the present invention comprises a first disc loading device for transporting a disc between a disc loading / closing value and a disc playing position.
And a second tray, a housing having an opening through which the respective trays can be inserted into and taken out of the main body, and one of the first and second trays having a point symmetry with respect to a rotation support shaft. A rotatable tray support member, which opposes the other tray, opposes the playing means for playing the disk, and guides and supports the disc vertically, and the first and second trays are alternately provided in the opening or the playing means. Supporting member driving means for rotating the tray supporting member by a predetermined angle so as to face each other, and tray driving for taking in and out of the first and second trays at a position facing the opening of the housing from the housing Means.

According to the means of the present invention, the first and second trays are point-symmetric with respect to a rotation support shaft, and one of the trays faces the opening, and the other tray plays a disk. The first and second trays are alternately opposed to the opening by rotating a rotatable tray support member, which guides and supports a vertically overlapping guide tray, by a driving force of tray support member driving means. Alternatively, a plurality of sheets are conveyed to a position facing the arithmetic means, and a tray at a position facing the opening among the first and second trays can be freely taken in and out of the housing by the driving force of the tray driving means. The disk loading mechanism is simple and compact, and the disk on the other tray can be replaced while the selected one is playing.

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

FIG. 5 is an external perspective view of the disk player of the present invention, and FIGS. 1 to 4 are transparent perspective views of a disk tray and a tray supporting member.

In FIG. 5, reference numeral 1 denotes a front panel which constitutes a part of a casing of a disc player, an operation section 2 having various operation buttons, and an opening through which a tray 4 is inserted into and detached from the casing for attaching and detaching a disc. Three.

FIG. 6 shows a tray for accommodating and transporting a disk used in the disk player of the present invention.
Reference numeral 6 denotes a lower tray. The trays 5 and 6 have disc receiving recesses 5a and 6a, and slots 5b and 6b and notches 5 for turntables and optical pickups constituting disc playing means.
c and 6c, respectively.

In FIG. 1, reference numeral 7 denotes a tray support for supporting the trays 5 and 6, which are arranged around a rotation support shaft provided at the center of the lower surface thereof.
It is configured to be capable of reversible rotation by 0 degrees.

Further, the trays 5 and 6 are provided with guide grooves 7a,
7b slidable, and disk receiving recesses 5a, 6a
Are point-symmetric with respect to the rotation support shaft of the tray support 7 so that the disc receiving recess of one of the trays faces the opening 3 of the panel 1 and the disc receiving recess of the other tray faces directly above the disc playing means. The guides are supported vertically one above the other.

In the above configuration, the drive mechanism will be described later, but first, the movement of the tray will be described.

Now, assuming that a disk is mounted on the trays 5 and 6, FIG. 2 shows that the disk mounted on the tray 5 is located at a position facing the playing means and can be played, and is mounted on the tray 6. The disk is at a position facing the opening 3.

In this state, if the drive means is driven to slide the tray 6 along the guide groove 7b and protrude from the opening 3 as shown in FIG. 1, the disk mounted on the tray 6 can be replaced.

Next, when the tray 6 is returned to the original state by the driving means, the state shown in FIG. 2 is obtained.

From the state shown in FIG. 2, the disk support 7 is
When the disk is rotated by 180 degrees, the disk mounted on the tray 6 moves to a position facing the playing means as shown in FIG. Move to the opposing position.

When the disc on the tray 5 is to be replaced, the tray 5 is moved by the driving force of the driving means as shown in FIG.
The disc can be exchanged by sliding along the line 7a so as to protrude from the opening 3.

When the tray 5 is returned to the original state by the driving means, the state shown in FIG. 4 is obtained.

By repeating the above operation, it is possible to sequentially play a plurality of disks while sequentially changing the disks.

As described above, while the disk on one tray is playing, the disk on the other tray can be replaced, and the disk that is playing and the disk that is not playing can be replaced by simply rotating the tray support 180 degrees. Therefore, the reproduction interruption time can be shortened.

Further, the loading mechanism for disc replacement can be reduced in size.

Next, a mechanism for performing the above-described disc loading operation will be described with reference to the drawings.

FIG. 7 is an exploded perspective view of the disc loading device of the disc player of the present invention.

In FIG. 7, reference numeral 11 denotes a mechanical chassis,
2, a pulley 13, gears 14, 15 and the like are supported.

Also, a support shaft 16 is erected on the mechanical chassis 11,
A gear 17 is rotatably supported by the support shaft 16.

Then, the reversible driving force of the motor 12 as the driving source is transmitted to the gear 17 of the pulley 13 and the gears 14 and 15 as the transmission means.

Reference numerals 18 and 19 denote racks which mesh with the gear 17 and slide along the rails 20 and 21, respectively, and have pins 22, 23, 24, 25, 26 and 27, respectively.
And cams 28 and 29.

 A cam 35 is fixed to the support shaft 16.

A gear 36 is fixed to the center of the lower surface of the tray support 7, and the gear 36 is rotatably fitted on the support shaft 16, and the gear 36 is mounted on the second rack 31 provided on the rack 18 or the rack 19.
, And the gear 36 is rotated by sliding the racks 18 and 19. The tray support 7 is configured to rotate 180 degrees by this rotational force.

Reference numeral 37 denotes a lever rotatably supported by the chassis 11, which is always in contact with a cam 38 provided on the lower surface of the tray support 7 by a spring biasing force to perform rotational positioning of the tray support 7. .

The switches 39 and 40 are for contacting the protrusions 41 and 42 of the racks 18 and 19 to detect the positions of the racks 18 and 19.

50 is an optical pick, traverse, turntable 51
It is a disk playing means provided with the above, and is mounted on a support table 52 provided with an arm 53.

The support table 52 has a tip 54 of the chassis 11
The racks 18 and 19 slide on the inclined surfaces of the cams 28 and 29 on the racks 18 and 19 to support the support base.
When the lower part of the 52 abuts, the support table 52 rotates around the support shaft to raise and lower the disc playing means 50,
It is configured to approach and separate from the disk mounted on the tray.

Reference numeral 55 denotes a clamper for clamping a disk in co-operation with the turntable 51. The clamper 55 is supported by a clamper arm 57 pivotally supported by a projecting piece 56 of the chassis 11, and the clamper arm is constantly driven by a spring biasing force of a spring 58. Of the racks 18, 19 at one end 59, 60
By acting on the clamper arm 57, it functions to clamp the disk.

Reference numeral 62 denotes a seesaw arm rotatably supported at the center between the racks 18 and 19 by being pivotally supported by the chassis 11, and both ends can be engaged with pins 23, 24, 26 and 27 of the racks 18 and 19. It has become.

The operation of the disk loading device configured as described above will be described below.

FIGS. 8 to 10 show a disc loading device in which the disc loaded on the tray 5 is used as the disc playing means 50, assuming that the discs are loaded on both trays 5, 6. FIG.
2 shows a state in which the disc placed on the tray 6 faces the opening 3 of the panel 1.

At this time, as shown in FIG. 8, the rack 18 is at a position where it meshes with the gear 17, and the rack 19 has moved to a position where it does not mesh with the gear 17. The pins 22 provided on the rack 18 are connected to the tray 6
Is engaged with a U-shaped engaging piece 70 indicated by a wavy line provided on the lower surface of the.

At this time, the disc playing means 50 is lifted together with the support 52 by the cam 29 provided on the rack 19 as shown in FIG. 10, and is in the playing position via the notch 6c of the tray 6 and the slot 5b of the tray 5. The disc 71 is held between the turntable 51 and the clamper 55 so that the disc 71 is rotatable and can be played.

Next, the operation of exchanging the disk placed on the tray 6 from this state will be described.

When the operator takes out the tray 6, the motor 12 rotates counterclockwise in FIG.
13, the gear 17 is transmitted to the gear 17 via transmission means such as the gear 14, and the gear 17 rotates clockwise.

Then, the rack 18 meshing with the gear 17 is slid in the direction of the opening 3 (to the left in FIG. 8). Because the pins 22 of the rack 18 push the engaging pieces 70 of the tray 6 in the direction of the opening 3 by the sliding of the rack 18, the tray 6 projects from the opening 3 as shown in FIGS. Can be replaced.

Next, after the replacement of the disk in the tray 6 is completed, if the operator performs a storing operation, the motor is operated in a reverse operation to the removal of the tray.
12 rotates clockwise, and the gear 17 rotates counterclockwise to slide the rack 18 rightward in FIG. 11 so that the pin 22 of the rack 18 and the engaging piece 70 of the tray 6 6 is stored in the housing through the opening 3 and returns to the state shown in FIG.

Next, a case where the playing state of the disk placed on the tray 5 is changed to the playing state of the disk placed on the tray 6 will be described.

When the operator performs the operation of replacing the performance disk, in FIG. 8, the motor 12 rotates clockwise, the gear 17 rotates counterclockwise, and the rack 18 slides to the right.
At this time, the pins 24 of the rack 18 rotate the seesaw arm 62 counterclockwise to start the rack 19 to the left, causing the rack 19 and the gear 17 to mesh with each other. Slide left.

When the rack 19 slides leftward, first, the cam 29 moves leftward together with the rack 19, so that the disc playing means 50 descends together with the support 52 along the inclined surface of the cam 29, and the clamper The arm 57 is rotated upward by the urging force of the spring 58, and the disc 71 receives the disc of the tray 5 and is recessed.
Return to 5a.

Then, the disk playing means 50 is completely
The second rack provided on the rack 18 when descending from the lower surface of the
30 and the second rack 31 provided on the rack 19 are the tray support 7
Meshing with the gear 36 provided at the center of the lower surface of the rack 18, the rightward sliding of the rack 18, the second rack 30 and the rack 19, the second rack 3
By sliding 1 leftward, the gear 36 is rotated counterclockwise. As a result, the tray support 7 is rotated counterclockwise, and when the tray support 7 is rotated by 180 degrees, the gear 3 is rotated.
The engagement between 6 and the second racks 30, 31 is released.

At this time, the tip of the lever 37 engages with the concave portion of the cam 38 provided on the lower surface of the tray support 7 by the biasing force of the spring, thereby regulating the rotational position of the tray support.

When the rack 18 slides further to the right, the cam 28 lifts the disk playing means 50 and moves to the disk playing position of the disk placed on the tray 6, and one end 60 of the rack 18 rotates the clamper arm 57. By moving the disc, the disc placed on the tray 6 is held between the turntable 51 and the clamper 55 so that the disc can be rotated to enable performance.

Then, when the state shown in FIG. 13 is reached, the motor 12 is stopped and the exchange of the performance disk is completed.

At this time, as shown in FIG. 13, the pin 25 of the rack 19 is engaged with a U-shaped engagement piece 72 indicated by a wavy line provided on the lower surface of the tray 5.

Next, when removing the disc placed on the tray 5 from the main body and replacing it, the motor 12 is rotated clockwise from the state shown in FIG. The engaging piece 72 of the tray 5 is pushed by the tray 25 so that the tray 5 protrudes from the opening of the panel 1, and the disk can be replaced.

If the operation is reversed after the disk is replaced, the tray 5 is stored in the housing and returns to the state shown in FIG.

In order to exchange the disc placed on the tray 6 during the performance with the disc placed on the tray 5 at a position facing the opening 3, the motor 12 is turned counterclockwise from the state shown in FIG. When the rack 19 is rotated and the rack 19 is slid to the right, the same operation as the above-described exchange of the performance disk is performed, and the performance disk can be exchanged by rotating the tray support 7 clockwise by 180 degrees. .

When playing a disc placed on the tray 5, the projection 75 inside the gear 36 provided on the tray support 7 is at the lowest position of the cam 35 fixed to the support shaft 16, as shown in FIG. When playing a disc placed on the tray 6, the projection 75 inside the gear 36 provided on the tray support 7 is at the highest position of the cam 35 fixed to the support shaft 16 as shown in FIG. The tray support table 7 is configured so as to be in contact with the position portion so that the height H from the chassis 11 to the tray when playing the disk on the tray 5 and when playing the disk on the tray 6 are the same.
The disk playing means 50 is moved up and down by the cam 35 together with the rotation by 180 degrees so that the playing is always performed in a state parallel to the chassis 11.

As described above, according to the present embodiment, while one of the trays is being played, the other tray can be exchanged by sliding the latch with the driving force of the motor to protrude from the opening 3 of the panel 1 so that the next disk can be replaced. Stand-by of the performance disk can be easily performed.

Further, by simply transmitting the rack sliding operation to the gear 36 and rotating the tray support 7 by 180 degrees, the disc being played and the disc in standby can be easily exchanged, so that the interruption time of reproduction can be shortened.

In addition, the playing disk and the standby disk are replaced by rotating the tray support 7 by 180 degrees,
Since the discs that are not playing can be sequentially changed, the sequential playing of the discs can be performed with a simple configuration, and the loading device can be reduced in size.

According to the present invention, there is provided a disc loading apparatus for a disc player, comprising: first and second trays for loading a disc and transporting the disc between a disc loading / unloading position and a disc playing position; And the first and second trays are point-symmetric with respect to a rotation support shaft, either one of the trays faces the opening, and the other tray faces playing means for playing a disc. A rotatable tray support member for vertically supporting and supporting the tray, and a support member for rotating the tray support member by a predetermined angle so that the first and second trays alternately face the opening or the playing means. A drive unit, and a tray drive unit that puts a tray at a position facing the opening of the housing from among the first and second trays into and out of the housing, so that the tray can be placed on one of the trays. It is possible to provide a disk loading device having a small size and a simple configuration that allows a disk placed on the other tray to be replaced while a loaded disk is being played, and that allows a plurality of disks to be sequentially replaced and played.

[Brief description of the drawings]

1 to 4 are perspective views of a tray and a tray supporting portion of a disc loading device of a disc player according to an embodiment of the present invention. FIG. 5 is an external perspective view of the disc player of the embodiment of the present invention. 7 (a) and 7 (c) are plan views, FIGS. 7 (b) and 7 (d) are cross-sectional views taken along the line AA 'of FIG. 7, and FIGS. FIG. 1 is an exploded perspective view of a disk loading device according to an embodiment of the present invention,
8 is a plan view of the device, FIG. 9 is a sectional view taken along the line AA 'of FIG. 8, FIG. 10 is a sectional view showing the playing state of the device, FIG. 11 is a plan view of the device. 12 is a partial cross-sectional side view of FIG. 11,
FIG. 13 is a plan view of the same device, and FIG. 14 is a sectional view taken along line AA 'of FIG. 3 ... Opening, 5,6 ... Tray, 7 ... Disc support, 1
2 ... Motor, 16 ... Spindle, 17 ... Gear, 18,19 ... Rack, 22-27 ... Pin, 28,29 ... Cam, 30,31 ... Second rack, 50 ... Disc playing means, 51 ... turntable, 55 ... clamper.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G11B 17/22 G11B 15/68

Claims (1)

(57) [Claims] A first tray for loading a disk and transporting the disk between a disk mounting position and a disk playing position; a housing having an opening for inserting and removing each tray from a main body; One of the second trays faces the opening and the other tray faces the playing means for playing the disc, and is vertically guided to support the second tray in a point symmetry with respect to the rotation support shaft. A rotatable tray support member, a support member driving means for rotating the tray support member at a predetermined angle so that the first and second trays alternately face the opening or the playing means, and A tray driving means for taking a tray out of the two trays at a position facing the opening of the casing into and out of the casing, the disc loading apparatus for a disc player.