JP3289740B2 - Disc tray structure for disc players - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly to a disc tray structure in a disc player having a so-called front loading type disc tray for horizontally moving a disc and mounting the disc on the disc player.

[0002]

2. Description of the Related Art In a general disk player, a loading type disk tray is used for loading a disk. In this type of disc tray, a disc such as a compact disc is placed on a disc mounting surface 52 of a disc tray 51 drawn out as shown in FIGS. The disc is loaded by moving. Then, the pickup is moved through the hole 55 to perform reproduction and recording.

[0003]

However, in such a conventional disk tray 51, the disk mounting surface 52 and the upper surface 53a of the supporting portion 53 around the disk mounting surface 52 are formed as follows.
It is a horizontal plane as shown in FIGS. Since the area of this horizontal plane is relatively large, the disc tray 51
In a state where is drawn out of the disk player 54, there is a problem that foreign matter such as dust easily adheres to the horizontal surface. If a play operation or the like is performed in a state where foreign matter is loaded, the foreign matter attached to the disk tray 51 is directly brought into the disk player 54 and falls inside, and adheres between circuits, causing a malfunction. there were. Further, there is a problem that if the disc is placed, the tray is closed, and the close play operation is performed without noticing the dust attached to the disc mounting surface 52, the disc film surface is damaged.

Accordingly, the present invention has been made in view of such a conventional problem, and provides a disc tray with a circular hole and a plurality of odd-shaped holes or an inclination on a support portion of the disc tray, thereby providing the disc tray with a slope. It is an object of the present invention to provide a disk tray structure in a disk player which makes it difficult for foreign substances to be loaded, prevents foreign substances from entering the inside of the disk player, and suppresses a short circuit or a failure of a circuit due to the foreign substances.

[0005]

According to a first aspect of the present invention, there is provided a disk player comprising a circular recess for receiving a disc and a support portion for supporting the recess, the disc player having a substantially horizontally moving disc tray. The concave portion is characterized in that it has a concentric circular hole which is smaller than the diameter of the disk and penetrates up and down in a central portion, and a plurality of irregular holes which penetrates up and down in the support portion.

The present invention according to claim 2 is based on claim 1.
In addition to the configuration described above, the upper surface of the support portion is characterized by forming an inclined surface inclined toward at least one of the circular hole, the modified hole, and the outer peripheral edge of the support portion.

The present invention described in claim 3 is based on claim 1.
Alternatively, in addition to the configuration described in claim 2, the disk tray is made of a conductive member.

[0008]

In the present invention, a concentric circular hole penetrating vertically is provided in the concave portion in which the disc is mounted, and a plurality of irregular holes penetrating vertically are provided in the supporting portion. And almost no dust or foreign matter adheres to the disc tray.

According to the second aspect of the present invention, in addition to the above-described structure, the inclined surface is formed on the upper surface of the supporting portion, so that dirt and foreign substances which are to be attached to the supporting portion are formed along the inclined surface. And falls through the through hole to the outside of the vessel.

According to the third aspect of the present invention, since the disk tray is made of a conductive member, the dust and foreign matters charged with static electricity are discharged when the disk tray is touched to lose electric charge and generate no electrostatic adhesion. Even if foreign matter such as dust comes onto the disc tray, it easily falls.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are views showing a first embodiment of a disc tray structure in a disc player according to the present invention.
First, the configuration will be described. Reference numeral 1 denotes a disk tray. The disk tray 1 is made of a hard resin or sheet metal, and is pulled out from the disk player 3 or turned on or off by a loading switch.
It is designed to be drawn in. Disc tray 1
Is provided with a disk receiving portion 2 which is a concave portion for mounting a disk (not shown) and a supporting portion 8 for supporting the disk. When a loading operation is performed on the disc tray 1 after the disc is placed on the disc receiving portion 2, the disc is loaded into the disc player 3.

The disk receiving portion 2 of the disk tray 1 has a circular hole 2a smaller than the diameter of the disk, a band-like support portion 2b around the hole, and a peripheral wall portion 2 perpendicular to and continuous with the support portion 2b.
c and a hole 11 for moving the pickup are provided. The supporting portion 8 is provided with irregular holes 4, 5, 6, 7 penetrating up and down along the shape in order to reduce the horizontal plane.

Next, the operation will be described. Since the disk tray 1 is provided with a circular hole 2a having a smaller diameter than the disk, the horizontal portion for mounting the disk is only the peripheral band-shaped support portion 2b. Is significantly smaller. The support portion 8 is provided with deformed holes 4, 5, 6, and 7.
Are divided by deformed holes 4, 5, 6, 7. For this reason, the area of the horizontal portion is significantly reduced as compared with the conventional case, so that dirt and foreign matter can be removed from the disc tray 1.
It is difficult to adhere to the top. Therefore, even if the disc tray is pulled into the disc player 3 and the disc is loaded, the invasion of foreign matter into the disc player 3 is greatly reduced.

Next, a second embodiment of the present invention will be described with reference to FIG. In the disc tray 20 shown in FIG. 4, the same components as those in the first embodiment are denoted by the same reference numerals. Disc receiver 2
The modified holes 4, 5, 6, and 7 provided in the support portion 8 are the same as those in the first embodiment, but the upper surface of the support portion 8 is provided with an inverted V-shaped inclined surface 22, and the circular holes 2a, Deformed holes 4, 5, 6,
This is a case where each is inclined toward the outer peripheral edge of the support 7 and the support portion 8. Therefore, the horizontal portion is only the curved line 25. Therefore, dust and foreign matter move downward along the inclined surface 22, do not fall below the disk tray 20, and do not adhere to the disk tray 20. Also,
FIG. 5 is a view showing a disk tray 30 of still another third embodiment. The disc tray 30 is a case where the upper surface of the support portion 8 is an inverted U-shaped curved inclined surface 32. Also in this case, dust and foreign matter fall downward along the inclined curved surface 32. Further, in the above-described embodiment, the case where the disc tray is made of a resin member has been described. However, the present invention is not limited to this embodiment, and a conductive member (for example, conductive plastic) may be used. At this time, even if the electrostatically charged dust or foreign matter tries to adhere to the disk tray, it is discharged and loses its adhesive force and falls downward.

In the above-described embodiment, a case where a disk of one size is mounted has been described. However, a guide may be provided on a band-shaped portion on which disks are mounted for disks of different sizes. By applying the strip-shaped portions in parallel and concentrically, application becomes possible. Further, the shape of the inclined surface is not limited to the inverted V-shape or the inverted U-shape, but may be a shape that is inclined in one direction such that it becomes lower as approaching the outer peripheral edge.

[0016]

As described above, according to the present invention,
A substantially concentric circular hole is provided in the concave portion for mounting the disk of the disk tray, and a plurality of irregular holes are provided in the support portion that supports the periphery of the concave portion, and the upper surface of the support portion has the circular hole, the irregular hole, and the outer peripheral edge. Since an inclined surface inclined toward at least one of the above is formed, the area of a horizontal plane on which foreign matter such as dust is likely to be placed is reduced. Therefore, foreign matter is less likely to be placed on the disc tray, foreign matter is prevented from entering the inside of the disk player, and short-circuiting or failure of the circuit due to the foreign matter is suppressed. Further, by using a conductive member for the disk tray, dust and foreign matters charged with static electricity are also discharged and do not fall and adhere. Therefore, the disk tray is always kept in a clean state.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of a disc tray structure in a disc player according to the present invention.

FIG. 2 is a plan view of the disc tray shown in FIG.

FIG. 3 is a sectional view taken along line AA of the disc tray shown in FIG. 1;

FIG. 4 is a sectional view showing a second embodiment of the disc tray structure in the disc player according to the present invention.

FIG. 5 is a sectional view showing a third embodiment of the disc tray structure in the disc player according to the present invention.

FIG. 6 is a perspective view showing a configuration of a disc tray structure in a conventional disc player.

FIG. 7 is a plan view of the disc tray of FIG. 6;

FIG. 8 is a sectional view taken along line BB of FIG. 6;

[Explanation of symbols]

 1, 20, 30 Disc tray 2 Disc receiver 3 Disc player 2a Circular hole 4, 5, 6, 7 Deformed hole 22 Inclined surface 32 Curved side surface

Claims (3)

(57) [Claims] 1. A disk player comprising a circular recess for mounting a disc and a support portion for supporting the recess, the disc tray having a substantially horizontally moving disc tray, wherein the recess is smaller than the diameter of the disc at the center and vertically. A disc tray structure in a disc player, comprising: a concentric circular hole penetrating therethrough; and a plurality of irregularly shaped holes penetrating up and down in the support portion. 2. The disk according to claim 1, wherein an upper surface of the support portion forms an inclined surface inclined toward at least one of the circular hole, the modified hole, and an outer peripheral edge of the support portion. Disc tray structure for players. 3. The disc tray structure according to claim 1, wherein the disc tray is made of a conductive material.