JPH052814A - Multi-disk player - Google Patents

Abstract

PURPOSE:To facilitate the handling of a disk by suppressing the drawing amount of the disk tray minimum at the time of loading disks, especially loading disks in all small diameter disk placing parts. CONSTITUTION:The axial center of a turntable 4 provided with plural small diameter disk placing parts B, C, D annularly around a rotation center X2 is made to be decentered by a prescribed distance forward from a center X1 of a large disk placing part A. Thus, without drawing a disk tray 1 largely, disks can be loaded in all the small diameter disk placing parts B, C, D and the handling of the disk is improved. By forming recessed parts a1, a2' composing a part of a large diameter disk placing part A on the turntable 4, the stable supporting by the large diameter disk can be obtained.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a CD single, a CD,
Small-diameter disc such as CD-V, 20 cm LD, LD
The present invention relates to a multi-disc player capable of reproducing a plurality of types of discs having different diameters, such as a large-diameter disc.

[0002]

2. Description of the Related Art A large-diameter disk mounting portion and a plurality of small-diameter disk mounting portions are provided to reproduce a large-diameter disk such as an LD or to load a plurality of small-diameter disks such as a CD at the same time. A multi-disc player capable of reproducing and the like has already been proposed, for example, in Japanese Patent Laid-Open Nos. 64-7322 or 63-231766.

[0003]

By the way, in any of the conventionally proposed multi-disc players, a structure in which a plurality of small-diameter disc mounting portions are annularly arranged around the center of the large-diameter disc mounting portion is adopted. Since this is adopted, when loading discs in all of the small-diameter disc mounting parts, the disc tray must be pulled out from the player body to the front, and it cannot be said that this is another good handling aspect. It was a thing.

[0004]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above problems. In a multi-disc player in which a disc tray is provided in a player main body so that the disc tray can be inserted and removed from the front face of the player body, the disc tray is ,
A disk table having a large-diameter disk mounting portion, and a plurality of small-diameter disks that are rotatable about an axis that is eccentric by a predetermined distance forward from the center of the large-diameter disk mounting portion and that is annular around the rotation center. A rotary table having a mounting portion, the rotary table being located inside and outside the large-diameter disk mounting portion, and having a circular arc shape that forms a part of the large-diameter disk mounting portion at a predetermined rotation position. It has a recess.

Further, the rotary table is formed in a disc shape so as to project forward from the front edge of the disc tray, and a part of the circumferential portion thereof is cut off to provide a chord portion for predetermined rotation. At the position, the chord portion is configured to coincide with the front edge of the disc tray.

Further, the disc tray is constructed so that the front edge of the disc tray is unloaded with the chord portion of the rotary table aligned.

[0007]

With the above construction, the rotary table provided with a plurality of small-diameter disk mounting portions is displaced forward from the large-diameter disk mounting portions, and even when all the small-diameter disk mounting portions are loaded with disks. It is not necessary to pull out the disc tray extremely frontward of the player body, and the handling is easy. On the other hand, the rotary table is located over the inside and outside of the large-diameter disk mounting part to divide the concave part of the large-diameter disk mounting part, but the rotary table has a concave part that forms a part of the large-diameter disk mounting part. By forming the, the large-diameter disk can be stably supported as in the conventional case.

Further, since the rotary table is formed into a disk shape and a part of the circumferential portion thereof is cut off to provide a chord portion, and the chord portion is aligned with the front edge of the disc tray at a predetermined turning position, Due to the ease of handling when loading a small diameter disc,
The size of the disc tray including the rotary table does not increase.

Moreover, by unloading the disc tray with the chord portion of the rotary table aligned with the front edge of the disc tray, the amount of protrusion when the disc tray is pulled out can be suppressed to a small amount, and the disc can be handled when loaded. In addition to being good, the appearance is also good.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an external appearance of a multi-disc player according to an embodiment of the present invention in an unloading state. As shown in the figure, in the multi-disc player of this embodiment, the disc tray 1 is equipped with a box-shaped frame 2 of the player main body so that it can be moved forward and backward.
The disc tray 1 is a rectangular disc table 3
And a substantially disk-shaped rotary table 4 provided therein.

On the upper surface of the disk table 3, concave portions a ₁ and a ₂ having a partial arc shape with the center X ₁ set in a substantially central portion of the table 3 are concentrically formed, and on the surface of the rotary table 4 are formed. the recess a _1, partial arc shaped recesses a ₁ leading to a ₂ ', a _2' is formed, the large-diameter disk mounting part a is formed. That is, the rotary table 4 is located inside and outside the large-diameter disk mounting portion A, and forms arcuate concave portions a ₁ ′ and a ₂ ′ that form a part of the large-diameter disk mounting portion A. . Incidentally, the concave portions a ₁ , a ₁ ′ of the large-diameter disk mounting portion A are
A 30 cm LD can be mounted on it, and the recesses a ₂ , a ₂ '
A 20 cm LD can be placed on.

[0013] rotating table 4 can freely rotate about the axis X ₂ that is eccentric in the forward direction from the center X ₁ of the large-diameter disk mounting part A, the center X ₁ around the axis X ₂ Three sets of small-diameter disk mounting portions B, C, and D are provided on a pitch circle P passing through at an angle of 120 °.

Each of the small-diameter disc mounting portions B, C, D has 12
The circular recesses b ₁ , c ₁ and d _{1 on} which the cmCD and 12 cmCD-V can be placed and the circular recesses b ₂ , c ₂ and d _{2 on} which the 8 cmCD single can be placed are formed concentrically. Has been done.

Further, an opening 5a is formed radially outward in the large-diameter disk mounting portion A, and each small-diameter disk mounting portion B, C, D is located on the center X ₁ . At this time, openings 5b, 5c, and 5d that are continuous with the opening 5a are formed outward in the radial direction. The straight hole 5 formed by these openings continuously is for allowing the vertical movement of the disk drive portion 6 provided in the frame 2 and the movement of the pickup 7.

The disk drive unit 6 is installed so as to be located immediately below the center X _{1 of the} large-diameter disk mounting portion A when the disk tray 1 is loaded into the frame 2, and is rotated and driven at a high speed by a spindle motor. It The method of supporting the disk placed on the disk tray 1 by the disk drive unit 6 is such that the vertical position of the disk drive unit 6 and the pickup 7 is kept constant and the disk tray 1 is lowered. Even in the system in which the disc on the disc tray 1 is supported by the disc drive unit 6,
It is also possible to raise the disc drive unit 6 and the pickup 7 without lowering the disc tray 1.

On the upper surface of the disk drive unit 6, a CD,
Centering hub 8 that supports CD-V and CD single
And a centering hub 9 for supporting 20 cmLD and 30 cmLD. The pickup 7 linearly moves along the guide shaft 10 in the disk radial direction.

Further, the rotary table 4 is provided with a chord portion 4a by linearly cutting a part of its circumference, and the chord portion 4a is made to coincide with the front edge of the disc table 3 at a predetermined rotation phase. In this state, unloading is performed as shown in FIG.

The multi-disc player of this embodiment is
It is configured as described above, and as shown in FIGS. 3 and 4, the small-diameter disk mounting portions B, C, D of the rotary table 4 are arranged.
3 CDs or CD-V discs 11b, 11
c, 11d, or CD single discs are loaded in the corresponding recesses b _{1 to} d ₁ or b _{2 to} d ₂ , respectively, and the small-diameter disc mounting portions B, C, D are displaced by the rotation of the rotary table 4. By selectively positioning the discs so as to face the disc drive unit 6, three discs can be selectively or continuously driven and reproduced.

Further, as shown in FIGS. 5 and 6, 20c
The disk 12 of mLD or the disk 13 of 30 cm LD is used as the corresponding recesses a ₁ , a ₁ ′ of the large-diameter disk mounting portion A.
Alternatively, a ₂ and a ₂ ′ can be loaded and reproduced.

As described above, in the above embodiment, a plurality of types of disks having different diameters can be handled by sharing the disk drive unit 6 including the spindle motor and the pickup 7.

The rotary table 4 may be manually rotated. For example, the rotary table 4 may be provided on the main body side.
It is also possible to provide a driving means such as a motor that is detachably connected to the shaft of the above and rotate the driving means.

[0023]

As described above, in the multi-disc player of the present invention, the center of the rotary table having the small-diameter disc mounting portion is provided eccentric to the front of the center of the large-diameter disc mounting portion by a predetermined distance. This makes it unnecessary to pull out the disc tray larger than the player body even when the discs are loaded into all the predetermined disc mounting portions.
The handling becomes easy, and it is possible to stably support the large-diameter disc when it is loaded.

Further, since the chord portion provided by cutting off a part of the circumference of the rotary table is made to coincide with the front edge of the disc tray, the handling becomes easy at the time of loading the small diameter disc. The size of the disc tray including the rotary table is not increased.

Further, by unloading the disc tray when the chord portion of the rotary table is aligned with the front edge of the disc tray, the handling is good when the disc is loaded and the appearance is good, which is excellent in practical use.

[Brief description of drawings]

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

FIG. 2 is a plan view showing the disc tray.

FIG. 3 is a plan view showing a loaded state of a 12 cm CD in the disc tray.

FIG. 4 is a plan view showing a state of 120 ° rotational displacement from the state of FIG.

FIG. 5 is a plan view showing a loaded state of a 20 cm LD in the disc tray.

FIG. 6 is a plan view showing a loaded state of a 30 cm LD in the disc tray.

[Explanation of symbols]

1 disc tray 3 disk table 4 turntable 4a string part A large-diameter disk mounting part B, C, D Small disk mounting part

Claims (3)

[Claims] 1. A multi-disc player in which a disc tray is provided in a player main body so that the disc tray can be inserted and removed from the front side of the player body. The disc tray has a disc table having a large-diameter disc mounting portion, and a center of the large-diameter disc mounting portion. A rotary table which is rotatable about an axis eccentric to the front by a predetermined distance from the center of the rotary table and has a plurality of small-diameter disk mounting portions annularly around the center of rotation. A multi-disc player, characterized in that it has an arcuate concave portion that is located inside and outside the portion and that forms a part of the large-diameter disc mounting portion at a predetermined rotation position. 2. A multi-disc player in which a disc tray is provided in a player main body so that the disc tray can be inserted and removed from the front side of the player body. The disc tray has a disc table having a large-diameter disc mounting portion and a center of the large-diameter disc mounting portion. A rotary table that is rotatable about an axis that is eccentric to the front by a predetermined distance and that is provided with a plurality of small-diameter disk mounting portions in an annular shape around the rotation center. The rotary table is formed in a disk shape. The front portion of the disc tray, the chord portion is provided by cutting off a part of the circumferential portion of the disc tray, and the chord portion is aligned with the front edge of the disc tray at a predetermined rotation position. A multi-disc player characterized by the following. 3. The disk tray is unloaded with the front edge of the disk tray aligned with the chord portion of the rotary table.
The described multi-disc player.