JPH04238150A - Disk tray of disk device - Google Patents

Abstract

PURPOSE:To obtain a tray which can mount disks of different sizes without using an adapter in spite of a thin type. CONSTITUTION:The tray 1 is made of a synthetic resin and is formed with a disk imposing part 2. U-shaped notches 5 are formed at approximately equal intervals in the disk imposing part 2 and are so formed that sub-guides B..., C..., D... align the centers of the disks of respective sizes to the center of the imposing part 2 when the disks of the other three sizes are imposed therein. The notched ends 5a exist concentrically with the disk imposing part 2, exist nearer the concentrical side than the notched ends and incline on the concentrical side to the front or rear surface of the imposing part. The disk of the small size can be surely imposed at the center of the imposing part 2 if the front ends of the notches are displaced upward. The disk of the large size can be mounted if the displaced front ends 5a of the notch are housed in the home positions.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a disc tray used in a disc device such as a disc recording/reproducing device or a disc changing device, and in particular a thin disc tray used in a disc changer magazine. This invention relates to a disc tray on which a disc can be placed.

0002

[Prior Art] Normally, a disc playback device uses a disc 27.
When playing, as shown in FIG. 9, a disk 27 is placed on the disk mounting section 22 of a disk tray (hereinafter referred to as a tray) 21, and this tray 21 is moved to the playback position of the disk playback device. It looks like this.

[0003] When the tray 21 on which the disc 27 is placed is moved to the playback position, the disc 27 is
Magnetic disc holder 29 and turntable 3
0 and is rotatably held by the spindle motor 3
1 and rotates, and information on the disk 27 is detected by an optical pickup (not shown).

[0004] Therefore, when the disc 27 is placed on the disc mounting section 22, the tray 21 does not hold the disc 27.
It must be possible to determine the placement position of item 7. Therefore, the tray 21 is usually provided with a disk guide 23 such that the center of the placed disk 27 substantially coincides with the center of the disk mounting section 22.

Incidentally, in recent years, discs have become more diverse, and for example, compact discs with a diameter of 8 cm (hereinafter referred to as 8 cm) have become more diverse.
cmCD), a 12cm diameter compact disc (hereinafter referred to as 12cmCD), and a 20cm diameter compact disc (hereinafter referred to as 12cmCD).
A plurality of types of discs of different sizes are now being used, such as laser vision discs of cm and 30 cm.

Conventionally, in order to make it possible to play discs of different sizes, such as 12 cm CD47 and 8 cm CD48, as shown in FIGS.
Align the center of D47 with the center of disk mounting section 421
A tray 41 is used in which a 2 cm CD guide 43 and an 8 cm CD guide 45 that aligns the center of the 8 cm CD 48 with the center of the disk mounting section are formed with different heights.

[0007] In recent years, disc exchange devices that are capable of automatically reproducing a plurality of discs have become popular. As shown in FIG. 12, this disc changing device includes a CD changer magazine in which trays 51 are stacked vertically and stored in a main body case 56, and when this CD changer magazine is inserted into a disc playback device, it automatically The tray 51 is pulled out and the desired song is set.
It is set to be played.

[0008] In this CD changer magazine,
It is necessary to store a large number of discs in a carpact. For this reason, the tray 41 shown in FIGS. 10 and 11, in which the 12 cm CD guide 43 and the 8 cm CD guide 45 are formed at different heights, is thick and cannot accommodate a small number of discs. Not suitable for use in magazines.

That is, the tray 51 used in the CD changer magazine is necessarily thin.
Conventionally, only 12cm CD guide 53 (or 8cm
For 12cm CD only (CD guide 55 only)
A tray 51 (only for 8cm CDs) is used. And the CD changer magazine has a 12cm CD.
A dedicated 12cm CD or an 8cm CD that is combined with a dedicated tray 51 and stored in the main body case 56.
There is a device exclusively for 8 cm CD that has a combination of only a dedicated tray 51.

0010

[Problems to be Solved by the Invention] However, the conventional CD changer magazine for 12cm CD or 8cm CD cannot be used as it is for 12cm CD and 8cm CD.
For example, 12cm CD and 8c CD cannot be mixed.
It is not possible to perform program playback in which a program is created by mixing mCDs and played sequentially.

[0011] Conventionally, therefore, a method has been adopted in which a commercially available adapter is attached to the 8 cm CD, and 12 cm CDs and 8 cm CDs are mixed in a CD changer magazine exclusively for 12 cm CDs.

[0012] However, with this, it is necessary to prepare adapters for the number of 8cm CDs, and without an adapter, it is not possible to play an 8cm CD with a CD changer magazine designed specifically for 12cm CDs, which is very inconvenient for the user. There is a problem with this.

[0013] Furthermore, the CD changer magazine exclusively for 8 cm CDs can only be used for 8 cm CDs.

The present invention has been made in view of the above, and
The purpose is to provide a thin tray on which a plurality of types of disks of different sizes can be placed without using an adapter or the like.

[0015]

[Means for Solving the Problems] A disk tray for a disk device according to the present invention has a disk-shaped disk mounting portion on which a disk as a rotating information recording medium is placed, and includes the following means. is being taught.

That is, the disk mounting portion is made of a material having curvature, for example, a synthetic resin such as polypropylene,
At least three approximately U-shaped notches are formed in this disc mounting portion, and the front end of the notch is on a circle approximately concentric with the disc mounting portion, and is closer to the center of the circle than the end of the notch. , and is inclined toward the center of the circle from the upper surface to the lower surface of the disk mounting section.

[0017]

[Operation] According to the above structure, the disk tray is formed with a disk-shaped disk placement portion on which a disk is placed, and a substantially U-shaped notch is formed in this disk placement portion. ing. In addition, since the disk mounting portion is made of a flexible material, for example, a synthetic resin such as polypropylene, the portion formed by the approximately U-shaped cut and the line connecting the ends of both cuts is The part that connects the cut ends is used as an integral hinge, and can be bent in the vertical direction.

The front end of the notch is inclined toward the center from the upper surface to the lower surface of the disk mounting section.
If the front end of the notch is pushed upward, the inclined lower part of the front end of the notch will come into contact with the top surface of the disk mounting part.
The front end of the cut remains displaced upward.

Further, at least three of the above-mentioned notches are formed in the disc mounting portion, and the front end of each notch is located on a circle substantially concentric with the disc mounting portion, and is located closer to the center of the circle than the end of the notch. The front ends of the notches have a guide function to determine the placement position of the disc when the front ends of the notches are displaced upward. In other words, if the front ends of the notches are displaced upward and a disk that has approximately the same diameter as the circle on the disk holder where these front ends of the notches are located is placed on the disk holder, the The disc is placed on the disc holder with its center substantially aligned with the center of the disc holder.

[0020] Furthermore, the front end of the notch can be stored in its original position by pushing it down again from the upwardly displaced state.

[0021] In this way, by displacing the front end of the notch upward, a smaller sized disc can be mounted, and by returning it to its original position, a larger sized disc can be mounted.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

A disc tray (hereinafter referred to as a tray) 1 of this embodiment is used in a compact disc (hereinafter referred to as CD) changer magazine as a disc device shown in FIG. The tray 1 is thin, and a plurality of trays 1 are stacked vertically and stored in the main body case 6 of the CD changer magazine.

As shown in FIGS. 1 and 2, the tray 1 includes a disk mounting section 2 on which a CD having a diameter of 12 cm (hereinafter referred to as 12 cm CD) as a disk serving as a rotating information recording medium can be placed. is formed in the shape of a disk, and a 12 cm CD guide 3 is formed on the peripheral edge of the disc mounting section 2 to align the center of the 12 cm CD with the center of the disc mounting section 2.

[0025] Further, the disc mounting portion 2 is formed with a long hole 2a through which a turntable 10 and a disc holding portion 9, which will be described later, are passed through.

Here, a diameter of 8 mm is placed at the center of the disk mounting section 2.
When a CD of cm (hereinafter referred to as 8 cm CD) is placed with its centers aligned, the circle formed by the outer periphery of the 8 cm CD is assumed to be the 8 cm CD outer circumference line 4. At this time,
Slightly outside the 8 cm CD outer circumferential line 4 in the disk mounting portion 2, three substantially U-shaped notches 5 are formed at substantially equal intervals. Then, each notch front end 5
a... are on substantially the same circle, and the above-mentioned notch end 5
It is located closer to the center of the circle than b.

The tray 1 is made of a flexible synthetic resin such as polypropylene, and the disk mounting portion 2 and the notches 5 are formed at the same time when the tray 1 is molded. Note that "having curvature" means being able to bend, and in particular, those made of synthetic resin such as the above-mentioned polypropylene have excellent bending fatigue resistance (a property that is strong against repeated curving). .

That is, if the part surrounded by the line connecting the substantially U-shaped notch 5 and the notch ends 5b and 5b is the sub-disc guide A, the part connecting the notch ends 5b and 5b is integrated. This serves as a hinge, and the sub-disk guide A can be bent in the vertical direction.

Further, the front end portion 5a of the notch is inclined toward the center of the circle from the upper surface to the lower surface of the disk mounting portion 2, as shown in FIG. Therefore, if the sub-disk guide A is pushed upward, the inclined lower part of the front end 5a of the notch will touch the upper surface of the disk mounting section 2, and the sub-disk guide A will be pushed upward, as shown in FIGS. 2 and 4. It is maintained in the displaced state.

Furthermore, if the sub-disk guide A is pushed down from the upwardly displaced state as described above, it will be returned to its original position as shown in FIG.

As shown in FIG. 5, the tray 1 has a main body case 6 of the CD changer magazine near one corner thereof.
It is pivoted inside and can rotate freely.

Then, a 12cm CD or 8cm CD is loaded into each tray 1 of the CD changer magazine.
When the CD changer magazine is inserted into a disc playback device (not shown), a predetermined tray 1 is automatically pulled out from the main body case 6 and drawn into the playback section of the disc playback device. For example, when a 12cm CD7 is played, as shown in FIG. The 12 cm CD 7 is held between the discs and rotated by a spindle motor 11, and information on the 12 cm CD 7 is detected by an optical pickup (not shown).

In the above configuration, the operation for loading a 12 cm CD7 or an 8 cm CD8 into the CD changer magazine will be described below with reference to FIG.

First, as shown in Figures (a) and (b), use one hand to open the main body case 6 of the CD changer magazine.
When the tray 1 is arbitrarily pulled out from the side of the main body case 6 with the other hand, the tray 1 is rotated outward and taken out from the main body case 6.

When installing the 12cm CD7, please refer to the same figure (
As shown in c), a 12 cm CD 7 is placed on the disk mounting portion 2 from above the tray 1 in this state.

When loading an 8cm CD8, lightly push up the sub-disc guides A of the tray 1 taken out from the main body case 6 with your fingers from below. At this time, the inclined lower part of the front end portion 5a of the notch touches the upper surface of the disk mounting portion 2, and the sub-disk guide A is held in an upwardly displaced state.

In the above state, as shown in FIG.
8cm CD8 from the top of the tray 1 so that the peripheral edge of the 8cmCD8 is located closer to the center of the circle than the front end 5a of each notch.
is placed on the disk mounting section 2. At this time, 8cmCD
8, each notch front end 5a connects the disk mounting portion 2.
The placement position is determined. That is, the 8 cm CD 8 is placed on the disc holder 2 with its center substantially aligned with the center of the disc holder 2.

12cm CD7 or 8cm as above
After placing the CD8 on the disc placement part 2 of the tray 1,
The tray 1 is rotated toward the inside of the main body case 6 and stored in the main body case 6.

[0039] Similarly, 12c is sequentially applied to other trays 1.
Attach mCD7 or 8cmCD8.

In addition, when replacing a disc, it is sufficient to take out the target tray 1 from the main body case 6 and replace it with another disc.
When replacing the 8cm CD8, remove the 8cm CD8 from the disc mounting section 2, then push down the sub-disc guide A that has been displaced upwards with your finger to return it to its original position, and then place the 12cm CD7. can do.

In this way, although the present tray 1 has a thin design used in CD changer magazines, it can be used without using an adapter or the like as in the conventional case.
Discs of either size CD7 or 8cmCD8 can be freely installed.

Although the tray 1 of this embodiment is used for a CD changer magazine, it is not limited to this, and may be used for other disc devices such as a disc recording/reproducing device. .

Furthermore, in this embodiment, synthetic resin such as polypropylene is used as the material for the tray 1, but the material is not limited to synthetic resin as long as it has curvature. Only the disk mounting portion 2 may be made of a material having curvature. However, synthetic resins have advantages such as being cheap and easy to mold.
It is preferable to mold the tray 1 from synthetic resin as in this embodiment.

Further, in this embodiment, three notches 5 are formed in the disk mounting portion 2 at approximately equal intervals, but the number of the notches 5 formed is large enough to determine the placement position of the disk. , that is, the distance between the notches 5 and 5 does not matter at all, as long as it is 3 or more.

Furthermore, the tray 1 of this embodiment has a 12 cmC
D and 8cm CD can be installed, but it is not limited to this, for example, a laser vision device with a diameter of 20cm (
(hereinafter referred to as 20 cm LV) and a laser vision with a diameter of 30 cm (hereinafter referred to as 30 cm LV), or 8 cm CD, 12 cm CD, 20 cm
cmLV and 30 cmLV may be attachable.

For example, in the case of the tray 1 that can accommodate four types of discs as described above, as shown in FIG.
A disk mounting section 2 on which the largest size disk can be placed is formed on the tray 1, and when disks of other three sizes are placed on this disk mounting section 2, the center of each size disk will be aligned with the disk. Sub-disc guides B, C, D, etc., which guide the discs so as to be aligned with the center of the disc holder 2, may be formed on the disc holder 2 in the same manner as described above.

[0047]

Effects of the Invention As described above, in the disk tray of the disk device of the present invention, the disk mounting portion is made of a material having curvature. A notch is formed, and the front end of the notch is located on a circle that is substantially concentric with the disc mounting portion, and is located closer to the center of the circle than the end of the notch, and extends toward the center of the circle from the top surface to the bottom surface of the disk mounting portion. It has a sloping configuration.

[0048] With this, by displacing the front end of the notch upward, a small-sized disk can be reliably placed in the center of the disk mounting section, and the front end of the notch, which has been displaced upward, can be pushed down. If you store it in its original position, you can attach a larger disc. Despite being so thin, it has the advantage of being able to mount disks of different sizes without using an adapter or the like as in the conventional case.

[Brief explanation of the drawing]

FIG. 1 shows one embodiment of the present invention, and is a schematic front view of a disc tray.

FIG. 2 is a schematic partial cross-sectional side view showing the disk tray in a state in which the sub-disk guide is displaced upward.

[Fig. 3] The disk mounting portion of the disk tray has a diameter of 1 mm.
It is an explanatory view showing the state of the sub-disc guide when a 2 cm compact disc is placed.

[Fig. 4] The disk mounting portion of the disk tray has a diameter of 8 mm.
FIG. 4 is an explanatory diagram showing the state of the sub-disc guide when a cm compact disc is placed thereon.

FIG. 5 is a schematic perspective view showing a compact disc changer magazine using the disc tray.

FIG. 6 is a schematic longitudinal cross-sectional view showing the disc tray drawn into the playback section of the disc playback device.

FIG. 7 is an explanatory diagram showing an operation when loading a disc into the compact disc changer magazine.

FIG. 8 shows another embodiment of the present invention, and is a schematic front view of a disc tray.

FIG. 9 is a schematic vertical sectional view showing a conventional example, showing a state in which a disc tray is drawn into a playback section of a disc playback device.

FIG. 10 is a schematic front view of a conventional disk tray.

FIG. 11 is an explanatory diagram showing that a compact disc with a diameter of 12 cm or a compact disc with a diameter of 8 cm is placed on the disc tray.

FIG. 12 is a schematic perspective view showing a conventional compact disc changer magazine.

[Explanation of symbols]

1 Disc tray 2 Disc placement part 5 Notch 5a Notch front end 5b Notch end 7 Compact disc (disc) with a diameter of 12 cm 8 Compact disc (disc) with a diameter of 8 cm A Sub disc guide

Claims (1)

[Claims] 1. A disk tray for a disk device having a disc-shaped disk mounting portion on which a disk serving as a rotating information recording medium is placed, wherein the disk mounting portion is made of a material having curvature; At least three approximately U-shaped notches are formed in the placing portion, and the front end of the notch is substantially on a concentric circle with the disk placing portion and is located closer to the center of the circle than the end of the notch, A disk tray for a disk device, wherein the disk tray is inclined from the top surface to the bottom surface toward the center of the disk.