JP3328982B2 - 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 in which a plurality of discs are mounted and the discs can be played continuously, or discs and music can be arbitrarily selected and played. It is about.

[0002]

2. Description of the Related Art In recent years, various types of multi-disc players have been put on the market with the spread of discs. As one of the methods, there is a method in which a plurality of discs are placed on a rotary tray on a tray base that moves in the front-rear direction, and the disc to be played is selected by rotating the rotary tray.

An example of the above-mentioned conventional multi-disc player will be described below with reference to the drawings.

FIG. 4 is a perspective view showing an entire conventional multi-disc player, and FIGS. 5 and 6 are exploded perspective views thereof.
The tray base 50 is housed in the hole 51a of the panel chassis 51, and the guide portion 50a of the tray base 50 is fitted into ribs 51b provided on the left and right sides of the panel chassis 51, and moves in the direction of arrow A or B. It is free. Reference numeral 52 denotes a rotary tray, which is mounted on a shaft 50 b of the tray base 50.
The arrow C fork is attached so as to be rotatable in two directions.
A notch 52b is provided at the center of the disc mounting portion 52a.
Is provided. The motor 53 attached to the tray base 50 drives the teeth 52c of the rotary tray 52 by the teeth 57a of the drive gear 57 via a reduction mechanism including a motor pulley 54, a belt 55, a pulley gear 56, and a drive gear 57. The rotary tray 52
Is rotated in the direction of arrow c or d. 5
8 is a disk.

An open lock gear 59 is provided by inserting a hole 59a into a boss 50f of the tray base 50, and has a structure rotatable around the boss 50f. The open lock gear 59 is provided on the tray base 5.
When 0 is pushed out, the teeth 71a of the drive gear 71 drive the teeth 59b of the open lock gear 59, and further rotate the open lock gear 59.

Reference numeral 60 denotes a close lock gear, which can be equipped by inserting a hole 60a into the boss 50g of the tray base 50, and has a structure rotatable around the boss 50g. The close lock gear 60 is connected to the tray base 5.
When 0 is stored, the teeth 71a of the drive gear 71 drive the teeth 60c of the close lock gear 60, and further rotate the close lock gear 60. A spring 75 is provided between the pin 60b of the close lock gear 60 and the tray base.
And the tray base 5
The close lock gear 60 is urged in a place other than the position where 0 is stored. The standing wall 51 of the panel chassis 51
h is for regulating the rotation of the open lock gear 59, and the invitation wall 51g is for rotating the close lock gear 60 while the tray base 50 is being stored.

Numeral 61 denotes a disk guard which is rotatably mounted along the guide groove 50i of the tray base 50 in the direction indicated by an arrow or arrow. The pin 6 of the disc guard 61
1a is engaged with the cam portion 51e or 51f of the U-shaped groove of the panel chassis 51 when the tray base 50 and the panel chassis 51 are assembled. At this time, the width of the U-shaped groove of the cam portions 51e and 51f is slightly larger than the diameter of the pin 61a.

Reference numeral 72 denotes a disk playing unit, 72a denotes a turntable for holding the disk 58 placed on the rotary tray 52, and 72a denotes a panel chassis 51.
The disc playing section 72 is attached to the supporting section 51c so as to be rotatable in the direction of the arrow or the arrow H. The pin 72c is connected to the cam portion 66a of the lifting gear 66, and the disk playing section 72 is rotated in the direction indicated by the arrow or the arrow H by the rotation of the lifting gear 66. The motor 62 includes a motor pulley 63, a belt 64, a pulley gear 6,
The elevating gear 66 is rotated via a speed reduction mechanism composed of the five gears.

The motor 67 attached to the panel chassis 51 is rotated by a motor 67 in a direction indicated by an arrow or arrow through a reduction mechanism including a motor pulley 68, a belt 69, and a pulley gear 70. S5
Since the toothed portion 71a of the drive gear 71 drives the rack 50c provided on the lower surface of the tray 0, the tray base 50 is moved in the direction of the arrow A or B.

Reference numeral 74 denotes a clamper for holding the disk 58 between the turntable 72a of the disk playing section 72 and a rotatable mount 73 in a hole 73a of a clamp plate 73 mounted on the panel chassis 51. The rib 50d provided on the tray base 50 is for preventing the disk 58 placed on the rotary tray 52 from dropping, and is stored in the tray base 50 when the tray base 50 is at the pushing position. Rotary part
It is provided outside the outer periphery of the tray 52. 50e is an opening for the disk playing section 72. Note that the dimension l is larger than the outer diameter of the disk 58 so that the disk 58 can pass through during the performance.

The operation of the multi-disc player configured as described above will be described below. First, in order to place the disk 58 on the rotary tray 52, when a command is issued to put the tray base 50 and the rotary tray 52 outside the panel chassis 51, the motor 67 rotates, and the motor pulley 68, the belt 69, the pulley gear 70,
The tooth portion 71a of the drive gear 71 drives the rack 50c of the tray base 50 in the direction of arrow a through the reduction mechanism including the drive gear 71, so that the tray base 50 moves in the direction of arrow a and the disk of the rotary tray 52 is moved. Mounting part 52
Stops when a comes out of the panel chassis 51. Then, the disk 58 is mounted on the disk mounting portion 52a of the rotary tray 52. (In this embodiment, two discs can be placed at the same time.) When the next disc 58 is placed on the remaining disc placement portion 52a of the rotary tray 52,
The motor 53 is rotated by a command, and the tooth portion 52c of the rotary tray 52 is driven in the direction indicated by the arrow C via the reduction mechanism including the motor pulley 54, the belt 55, the pulley gear 56, and the drive gear 57. So
The rotary tray 52 rotates in the direction of arrow C. Then, since the disk mounting portion 52a on which the disk 58 has not yet been mounted is stopped at a position outside the panel chassis 51, the next disk 58 can be mounted. By repeating this, the disk mounting portions 52 of all the rotary trays 52
The disk 58 can be placed on the a.

Next, when a command is issued to play the disk 58, the motor 67 rotates in the opposite direction, so that the tray base 50 also moves in the direction indicated by the arrow B, and the panel chassis 51 is rotated. Stops when stored inside. Then, since the motor 53 rotates to move the disk 58 to be played to the playing position, the rotary tray 52 also rotates in the direction of arrow C or D, and the specified disk 58 comes under the clamper 74 at the playing position. Stop where it left off. Next, the motor 62 rotates and the motor pulley 6
3, the elevating gear 66 is rotated via a reduction mechanism composed of the belt 64 and the pulley gear 65, so that the cam 72a of the elevating gear 66 moves the pin 72c of the disk playing part 72 connected thereto, and the disk playing part 72 Rotates in the direction indicated by the arrow G, and carries the disk 58 between the turntable 72a and the clamper 74 to start playing.

When the performance ends, the next disk 5
First, the motor 62 rotates in the opposite direction to rotate the disc playing section 72 in the direction indicated by the arrow G in order to play the music tray 8, and then the rotary tray 52 is rotated in the direction indicated by the arrow C or D by the rotation of the motor 53. The next disk 58 is moved to the playing position, and the disk playing section 72 is rotated in the direction of arrow G to play the disk 58 in the same manner as described above. By repeating this, all the disks 5 placed on the rotary tray 52 are
8 can be played.

Next, when the performance of the disk 58 is completed and the disk 58 is to be replaced or removed, when a command is issued, the motor 62 first rotates to rotate the disk playing section 72 in the direction indicated by the arrow H. Rotation of the tray base 50
Moves in the direction of arrow A, and the disk 58 mounted on the rotary tray 52 comes out of the panel chassis 51. After that, the disk 53 is replaced while rotating the rotary tray 52 by rotation of the motor 53 according to a command. Can be taken out.

In order to replace or remove another disk 58 while the disk 58 is being played, when a command is issued, the rotation of the motor 67 causes the tray base 50 to move in the direction of arrow a, and the panel chassis 51 to move. The disk 58 placed on the rotary tray 52 comes out of the
After that, while the rotary tray 52 is being rotated by the rotation of the motor 53 in accordance with the command, the disc 58 other than during the performance is
Can be replaced or taken out.

The disk guard 61 will be described below. When the tray base 50 is housed in the panel chassis 51, the pin 61a is located at the straight portion of the cam portion 51e. That is, the disc guard 61 is a tray base.
The groove 50i is located in the front part of the guide groove 50i. Next, when the tray base 50 is pushed out in the direction of arrow A, the pin 61a of the disk guard 61 is engaged with the cam portion 51f of the panel chassis 51, and the cam portion 51f is moved with the movement of the tray base 50. Pushes the pin 61a, the disc guard 61 rotates in the arc-shaped guide groove along the direction 50i from the direction of arrow n to the right, and the standing wall 61b of the disc guard 61 opens the opening 50e of the tray base 50. To prevent the disc 58 from passing (falling). On the other hand, when the tray base 50 is stored thereafter, the disk guard 6 is reversed.
1 rotates the pin 61a of the disc guard 61 in a cam shape such that the pin 1 escapes from the opening 50e of the tray base 50.

Next, the operation of the open lock gear 59 and the close lock gear 60 will be described with reference to FIG.

FIG. 7A shows a state where the tray base 50 is completely housed in the panel chassis 51.
At this time, the hole 60d of the close lock gear 60 and the pin 50k of the tray base 50 form the close lock gear 60.
Is determined. Further, since the close lock gear 60 is rotating, the tray base 50 does not fly out even if it receives a force in the direction of arrow A, that is, in the pushing direction.

Next, when a command to push out the tray base 50 is issued, the motor 67 rotates in the power direction, so that the drive gear 71 rotates in the direction indicated by the arrow through the above-described speed reduction mechanism, and FIG. As shown in B), the close lock gear 60 starts to rotate in the X direction.

When the close lock gear 60 completely rotates in the X direction as shown in FIG.
Since the first tooth portion 71 is engaged with the straight tooth portion 60c of the close lock gear 60, the tray base 50 is pushed out in the direction of arrow A. While being pushed out, the teeth 71a of the drive gear 71 drive the teeth 60c of the close lock gear 60 and the rack 50c of the tray base 50, and further engage the teeth 59b of the open lock gear 59. .

FIG. 7D shows the gear arrangement at the moment when the tray base 50 is pushed out in the direction of arrow A and the movement is completed. The open lock gear 59 is regulated by a rib 59d provided on the open lock gear 59 and a standing wall 51h of the panel chassis 51 so as not to rotate while the tray base 50 is moving.
Of the tray base 50 and the pin 50j of the tray base 50.

The movement of the tray base 50 in the direction A, that is, the pushing direction is completed, but the driving gear 71 further rotates, and as shown in FIG.
And the rotation of the drive gear 71 ends. This state is the gear arrangement after the tray base 50 is pushed out.
When the tray base 50 is pushed out, it cannot move even if it receives a force in the direction of arrow B, that is, in the storage direction.

The movement of receiving the instruction from the state where the tray base 50 is pushed out and storing the tray base 50 is completely opposite to that described above, but the invitation wall 51g of the panel chassis 51 is in the middle of the storage of the tray base 50. The rib 60e of the close lock gear 60 plays a role when the rib 60e of the close lock gear 60 hits the guiding wall 51g.

[0024]

However, in the conventional multi-disc player as described above, a component called a disc guard 61 is required to prevent the disc from dropping, and a guide groove 50i of the tray base 50 is required. There was a problem that the work of equipping was required.

[0025]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a multi-disc player according to the present invention does not use a component called a disc guard, but includes a rib for preventing disc dropping provided on a tray base. In this configuration, a standing wall that is higher than the height of the disk is provided at the rear of the open lock gear.

[0026]

According to the present invention, as described above, when the tray base is pushed out, the open lock gear rotates by a certain angle, and the standing wall provided at the rear of the open lock gear has
By closing the opening of the tray base where the disk playing portion engages with a size smaller than the outer shape of the disk, it is possible to prevent the disk from dropping.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multi-disc player according to the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing an entire multi-disc player according to an embodiment of the present invention, and FIG.
FIG. 3 is an operation explanatory view of an open lock gear.

1 to 3, the same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. The components provided on the panel chassis 51 have the same configuration as that of the conventional example shown in FIG.

Reference numeral 1 denotes a tray base, which is different from the conventional example in that there is no arc-shaped groove for guiding a disk guard. Other components are the same as those of the conventional example, but will be described below. The height of the rib 1d of the tray base 1 is
The height of the disk 58 is higher than the height of the disk 58 when the disk 58 is placed on the rotary tray 52. This rib 1
The dimension 1 of the opening 1e between the gaps d is larger than the outer shape of the disk 58.

The open lock gear 2 is equipped with the hole 2a inserted into the boss 1f of the tray base 1. The open lock gear 2 is a boss 1 of the tray base 1.
It can rotate around f. A standing wall 2e is provided at the rear of the open lock gear 2. The height of the standing wall 2e is higher than the height of the disk 58 when the disk 58 is placed on the rotary tray 52.

In addition, the principle that the tray base 1 moves in the direction of arrow a or b, the method in which the rotary tray 52 rotates and plays the disk 58, the principle in which the close lock gear 60 and the open lock gear 59 move respectively. This is exactly the same as the conventional example.

The operation of the multi-disc player configured as described above will be described below. First, when the tray base 1 is stored in the panel chassis 51, as shown in FIG. 3A, the open lock gear 2 is at a position where it is fully rotated in the direction of the arrow V. This is the same as FIG.
This is the same as described in (A).

Next, when a command to push out the tray base 1 is received, the tray base 1 is pushed out in the direction of arrow A.
When the tray base 1 is completely pushed out of the panel chassis 51, the open lock gear 2 rotates in the direction of the arrow W as shown in FIG. 3B, and the standing wall 2e of the open lock gear 2 is moved to the tray base. The opening 1e of the hole 1 is closed. At this time, the open lock gear 1 is driven by the driving gear 7 so that the tray base 1 does not move when the tray base 1 is pushed out, as shown in FIG.
This is because 1 rotates.

The standing wall 2e of the open lock gear 2 closes the opening 1e of the tray base 1, but as shown in FIG. 3B, the dimension a of the standing wall 2e and the rib 1d of the tray base 1 is set.
Is smaller than the outer dimensions of the disk 58. Also, the height of the standing wall 2e and the rib 1d is determined by the disc 58
Is higher than the height of the disk tray 58, and the disk 58 mounted by shock or the like is placed on the disk mounting portion 5 of the rotary tray 52.
2a, it is possible to prevent the tray base 1 from falling into the rear portion of the opening 1e.

As described above, according to the present embodiment, the standing wall 2e is provided at the rear of the open lock gear 2, and the tray base is provided.
By providing a rib 1d at the rear of the tray 1, the tray base
When the base 1 is completely pushed out, the open lock gear 2 rotates, and the standing wall 2e of the open lock gear 2 closes the opening 1e of the tray base 1, so that the disc 58 can be prevented from dropping. In addition, since the disk guard is not used, the number of parts of the product can be reduced, and the mounting work for mounting the disk guard can be reduced, so that a significant cost reduction can be realized.

[0037]

As described above, the multi-disc player according to the present invention does not use a disc guard, but includes a disc drop-prevention rib provided on a tray base and an oar.
When the tray base is pushed out, the open lock gear rotates by a certain angle, and the standing wall provided at the rear of the open lock gear is provided with a standing wall at a rear portion of the open lock gear. −
The opening of the disc engaging with the disc playing portion is closed with a size smaller than the outer shape of the disc, thereby preventing the disc from dropping.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view of a tray base assembly of the multi-disc player according to one embodiment of the present invention.

FIG. 3 is a diagram illustrating the operation of an open lock gear of the multi-disc player according to one embodiment of the present invention.

FIG. 4 is a perspective view showing an entire conventional multi-disc player.

FIG. 5 is an exploded perspective view of a conventional tray assembly of a multi-disc player.

FIG. 6 is a panel shear of a conventional multi-disc player.
FIG. 3 is an exploded perspective view of the assembly.

FIG. 7 is a diagram illustrating the operation of a conventional multi-disc player.

[Explanation of symbols]

 Reference Signs List 1 tray base 1d tray base rib 2 open lock gear 2e standing wall of open lock gear 51 panel chassis 52 rotary tray 58 disk 61 disk guard 72 disk playing section

Claims (1)

(57) [Claims] A rotary tray on which a plurality of disks can be mounted and which can rotate with the disks; a rotary tray driving means for rotating the rotary tray;
A tray base that supports the rotary tray and the rotary tray driving means and is movable in the front-rear direction, that is, in the pushing or storing direction, a tray base moving means that moves the tray base in the front-rear direction, and A disc playing section carrying the disc and playing the disc; and a disc playing section elevating means for vertically moving the disc playing section up and down.
When the tray is in the pushed-out position, at the portion where the tray base is stored, outside the outer periphery of the rotary tray,
A rib is provided to prevent the disc from dropping, and a lock gear is provided to prevent the tray base from moving in the front-rear direction by rotating by a certain angle when the tray base is at the pushing position. At the rear of the lock gear, there is a standing wall higher than the height of the loaded disc, and by rotating the disc by the angle, the opening of the tray base where the disc playing portion is engaged is narrower than the outer shape of the disc. A multi-disc player characterized in that a standing wall of the lock gear is closed.