JP2005196884A - Optical disk playback apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk playback apparatus capable of noise generated by the squeaking sound of an optical disk even when the tray panel is bent. <P>SOLUTION: The optical disk playback apparatus is provided with: a casing having an opening formed in a front panel part; a disk tray disposed to receive an optical disk and to freely slide between the position for being housed in the casing and a pulling-out position for being pulled out from the opening to the outside of the casing; and a tray panel for closing the opening, wherein the opening has a recess formed into a shape recessed inward the casing more than the front panel, and a gasket part having a projected part to project toward the outside of the casing in a form along the disk tray is disposed in the recess. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an optical disc playback apparatus.

  In recent years, an optical disc reproducing apparatus such as a DVD player reproduces information recorded on an optical disc at a higher transfer rate than a conventional optical disc reproducing apparatus. For this reason, the rotational speed of the optical disk has been increased with respect to the conventional optical disk reproducing apparatus.

  As the rotational speed of the optical disk increases, wind noise generated with the rotation of the optical disk increases, and noise suppression of the optical disk playback apparatus has become a major issue.

  An optical disc playback that has an opening at one end of the housing, and that stores and discharges the optical disc from the opening by a disc tray or the like that can be slid from a housing position in which the optical disc is housed to a position to be pulled out of the housing In the apparatus, there is an optical disk reproducing apparatus in which a partition wall is interposed between the front panel and the optical disk in order to prevent wind noise generated by the rotation of the optical disk stored in the casing from leaking outside the casing (for example, Cited reference 1).

  Further, there is a disk device having a function of suppressing leakage of wind noise due to rotation of the optical disk by providing a packing member between the front surface of the disk tray and the opening and providing unevenness on the surface of the disk tray. (For example, patent document 2).

JP 2003-272368 A JP 2001-160283 A

The optical disc device disclosed in Patent Document 1 requires a gap between the partition wall and the disc tray between the opening and a part of the clamper holding mechanism, and wind noise of the optical disc from the gap. Leaks and the sound insulation effect is not sufficient.
In addition, the disk device disclosed in Patent Document 2 has a configuration in which a packing material is provided between the housing and the tray panel to ensure confidentiality when the disk tray is housed, but the packing material is warped or deformed (hereinafter warped). (This will be explained by way of example), and there may be a case where a gap is generated between the tray panel and the opening due to warpage or deformation of the tray panel, so that sufficient confidentiality may not be secured, thereby blocking wind noise when the optical disk rotates. May not be enough.

  FIG. 5 is a sectional view showing a conventional optical disk reproducing apparatus. In FIG. 5, the optical disk 5 is in a state where it is transported to the position at the time of reproduction. A conventional optical disk reproducing apparatus includes a disk tray 1 that conveys an optical disk 5, a tray panel 2 provided at the tip of the disk tray 1, a housing 3, and a cushion material 4.

An opening 10 is formed on the front surface of the housing 3. The tray panel 2 is made of a synthetic resin member such as plastic, and the cushion material 4 is made of a rubber resin member having elasticity.
The optical disk 5 transported to the reproduction position in the housing 3 rotates at high speed during reproduction and generates wind noise. This wind noise leaks from the gap between the tray panel 2 and the opening 10 as noise from the opening 10 for pulling out the disk tray 1. In order to alleviate this, the gap between the tray panel 2 and the opening 10 is closed by fixing the cushion material 4 to the front surface of the opening 10 facing the tray panel 2.

  The cushion material 4 has some elasticity in contact with the tray panel 2 with respect to the opening and closing of the disk tray 1, and is slightly deformed by contacting the tray panel 2 when the optical disk 5 is conveyed to the storage position. Although it is a material, it is necessary to dispose the cushion material 4 so that the amount of deformation when the cushion material 4 comes into contact with the tray panel 2 is set small so that the disk tray 1 does not become too large when the disc tray 1 is closed. 6A and 6B are diagrams showing a conventional optical disk reproducing apparatus, FIG. 6A is a top view showing a case where the tray panel 2 is warped, and FIG. 6B is an AA view of FIG. 6A. It is sectional drawing. As shown in FIG. 6, when the tray panel 2 is warped, a gap B is generated between the tray panel 2 and the cushion material 4, and the wind noise of the optical disk 5 is generated from the gap B to the housing 3. It may leak out.

  An object of the present invention is to provide an optical disk reproducing apparatus capable of reducing noise due to wind noise of an optical disk even when the tray panel is warped.

  The invention of the present application is an optical disk reproducing apparatus in which an optical disk is pulled out by a housing having an opening at one end, a disk tray that can be slid to a storage position in which the optical disk is stored in the housing, and a position in which the optical disk is pulled out. In the optical disk reproducing apparatus performed from the opening, the tray panel provided at the tip of the disk tray and the packing material are provided so as to overlap the opening by making a U-turn on the space, and the tip of the disk tray is A long wind noise outflow path is formed by the overlapping space when the contact from the packing material is released.

  The present invention provides a housing having an opening formed in the front panel portion, a storage position where the optical disc is placed and housed in the housing, and a drawing position where the optical device is pulled out of the housing from the opening. In an optical disc reproducing apparatus including a disc tray that is slidably provided and a tray panel that closes the opening, the opening has a recessed portion that is recessed inward of the housing from the front panel. The optical disk reproducing apparatus is provided with a packing portion fixed to the bottom surface of the concave portion and having a protruding portion that protrudes toward the outside of the housing along the disk tray.

  More specifically, the present invention provides a housing in which an opening is formed in the front panel portion, a storage position in which an optical disk is placed and housed in the housing, and a drawer position in which the optical disk is pulled out of the housing from the opening. In the optical disc reproducing apparatus including a disc tray that is slidable between and a tray panel that closes the opening, the opening has a recessed portion that is recessed inward of the housing from the front panel. An optical disc reproduction comprising: a packing portion comprising a bottom portion configured to be fixed to the bottom surface of the concave portion and a convex portion projecting outward of the housing along the disc tray. Providing equipment. The protrusion may be constituted by the protrusion.

  According to the optical disk reproducing apparatus of the present invention, the housing has an opening at one end thereof, and is moved to a storage position in which an optical disk housed in the housing and an optical disk on which a rotation mechanism for driving rotation is placed are housed. In an optical disk reproducing apparatus in which an optical disk is pulled out from an opening by a slidable disk tray or the like, a long space is provided at the front end of the disk tray so as to overlap and overlap by a tray panel and a packing section. Therefore, even when the contact between the disc tray and the packing portion is released, even when the tray panel is warped, for example, the noise caused by the rotation of the optical disc during the reproduction of the optical disc leaks out of the housing Can be reduced.

  A housing in which an opening is formed in the front panel, and an optical disk is placed, and a slidable position is provided between a storage position in which the optical disk is stored and a drawing position in which the optical panel is pulled out of the housing from the opening. An optical disc reproducing apparatus comprising a disc tray and a tray panel that closes the opening includes the opening configured to have a recessed portion that is recessed inward of the housing from the front panel portion, An upper end portion and a lower end portion protrude inward of the casing between the protruding portion fixed to the bottom surface of the recess and protruding outward of the casing in a shape along the disc tray, and the leading end of the packing section When the disc tray is pulled out slightly to release the contact, the wind noise that flows along the surface of the optical disc is directed toward the inside of the housing. Flow, and the wind noise channel portion overlapping shape flowing toward the outside of the casing direction a U-turn is formed.

In the wind noise flow path portion, a portion where the wind noise portion makes a U-turn is formed inside the housing rather than the front panel portion.
The packing portion has a cushioning material function, and the tray panel is configured to have a bay portion whose upper end portion and lower end portion protrude toward the inside of the housing and whose front end contacts the packing portion.
Moreover, the said convex part is comprised as an inclination part which a front-end | tip part inclines in the form along the inner surface of the said bay part.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a configuration of an optical disc reproducing apparatus 100 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a state in which a disc tray of the optical disc reproducing apparatus 100 shown in FIG. It is.

  In these drawings, an optical disk reproducing apparatus 100 includes a disk tray 1, a housing 3, a tray panel 6, a packing unit 7 made of a cushion material, a spindle motor (not shown), a turntable, an optical pickup, a tray driving unit, a reproducing unit, an operation, and the like. Part and a control part.

  The housing 3 has a box shape including a panel unit such as the front panel unit 31 and a top cover 32, and the opening 10 is formed in the front panel unit 31. Concave portions 301 are formed on the upper and lower sides of the opening 10. The disc tray 1 can be loaded with the optical disc 5 on the upper surface, and slides between a position where the optical disc 5 is pulled out by the tray drive unit and a position where the disc tray 1 is housed inside the case 3. The operation unit is disposed on the surface of the housing 3 and outputs a signal for instructing reproduction of the optical disc 5 and for drawing out and storing the disc tray 1 to the control unit. The control unit controls the spindle motor, the optical pickup, the tray driving unit, and the reproducing unit based on an instruction signal from the operation unit.

  When the optical disc 5 is stored in the housing 3 by the disc tray 1, the optical disc 5 is placed on a turntable supported by a spindle motor that constitutes a drive mechanism, and is driven to rotate as the spindle motor rotates. . The optical pickup reads data recorded on the surface of the optical disk 5 by irradiating the surface of the rotating optical disk 5 with laser light. The reproduction unit reproduces the data read by the optical pickup.

  A tray panel 6 is fixed to the front end of the disc tray 1. The tray panel 6 closes the opening 10. The tray panel 6 is formed with a bay portion 601 that smoothly curves on the upper side (upper end portion) and the lower side (lower end portion). The packing portion 7 is made of a porous resin such as rubber resin or polyurethane resin that forms an elastic body, and is fixed (fixed) to the front surface of the bottom portion 302 of the recess 301. The packing portion 7 includes a convex portion 72 that protrudes forward, and an inclined portion 702 that is inclined toward the bay portion 601 is formed at the tip of the convex portion 72. In addition, although the inclination part 702 shown in FIG. 2 becomes planar shape, R shape may be sufficient.

  As shown in FIG. 2, the recess 301 is formed inward of the housing from the front panel portion 31, and the bottom 302 of the recess 301 is located inside the housing. The concave portion 301 may be integrally formed with the front panel portion 31 or may be a structure to be attached. The packing part 7 has a cushion function and can be referred to as a cushion material. The packing portion 7 includes a bottom portion 71 fixed to the front surface of the bottom portion 302 of the concave portion 301 and a protruding portion that protrudes outward from the housing in a form along the surface of the disc tray 1, that is, a convex portion 72. That is, a part of the convex portion 72 becomes a protruding portion. The bottom part 71 and the convex part 72 are good to be comprised as an integral thing. Accordingly, not only the bottom portion 71 but also the convex portion 72 has a cushion function. The upper end and the lower end protrude toward the inside of the casing, and face the bottom 71 of the recess 301 when the disc tray 1 is pulled out.

FIG. 3 is a cross-sectional view showing a state in which the disc tray 1 is housed in the housing 3.
When the disc tray 1 is housed inside the housing 3 by the tray driving unit, the rear end of the bay portion 601 of the tray panel 6 comes into contact with the front surface of the bottom portion 71 of the packing portion 7. That is, touch and lightly press. At this time, the inclined portion 702 of the packing portion 7 is disposed so as to be close to the inner wall of the bay portion 601. When the bay portion 601 of the tray panel 6 contacts the front surface of the packing portion 7, no gap is generated between the tray panel 6 and the opening portion 10. Thereby, it is possible to prevent wind noise caused by the rotation of the optical disc 5 from leaking outside the housing 3.

  In FIG. 3, by the tray panel 6, the bay 601 and the recess 301, space portions 51 and 52 are formed in the opening 10 so as to overlap each other by making a U-turn vertically. A space 53 is also formed between the convex portion 72 and the disc tray 1. Thus, the convex part 72 forms the space parts 51 and 53 on both sides thereof. The space portions 51, 52, and 53 form a three-layer overlap shape. In particular, the overlap shape by the space portions 51 and 52 is important for preventing wind noise.

FIG. 4 is a cross-sectional view showing a central portion of the tray panel 6 when the tray panel 6 is warped.
The tray panel 6 may be warped to be curved when manufactured by mold molding or due to an external temperature change. Then, the tray panel 6 is warped in a curve from the left and right end portions to the central portion, and the central portion of the tray panel 6 is in a state of bulging forward. As a result, even if the rear end of the bay portion 601 and the front surface of the cushion material of the bottom portion 71 are in contact with each other at the left and right end portions of the tray panel 6, as shown in FIG. A gap 73 is formed between the rear end and the front surface of the cushion material at the bottom 71. A gap 73 is formed, and another gap 74 is provided between the inclined portion 702 and the bay 601, so that a wind noise channel is formed by the spaces 53, 51, 52. As described above, these space portions overlap and lengthen up and down, and particularly, the space portion 51 and the space portion 52 flow in an overlapping manner so that the wind noise makes a U-turn. Thus, the convex portion 72 of the cushion material of the bottom portion 71 is disposed inside the bay portion 601, and the inclined portion 702 is disposed at a position close to the bay portion 601. In comparison, the path of the gap between the tray panel 6 and the cushion portion of the bottom 71 (defined in the above description as the wind noise channel) is longer. Wind noise that has passed between the inclined portion 702 and the bay 601 is reflected by the bay 601 toward the inside of the housing 3 or absorbed by the cushion material of the bottom 71. As a result, even if the tray panel 6 is warped, it is possible to reduce leakage of wind noise generated by the rotation of the optical disc 5 to the outside of the housing 3 as compared with the conventional optical disc reproducing apparatus.

  In the optical disk reproducing apparatus of the present embodiment, the cushion material at the bottom 71 and the tray panel 6 are not in contact with each other only, but have overlapping space portions 51 and 52. For this reason, even when the tray panel 6 is warped or the like and cannot be kept sealed, the optical disk rotates and the guide path of the wind noise generated is lengthened, so that the wind noise of the optical disk is leaked. It becomes possible to reduce.

1 is a perspective view showing an optical disk reproducing apparatus according to an embodiment of the present invention. Sectional drawing of the optical disk reproducing | regenerating apparatus of a present Example. Sectional drawing in the optical disk reproducing | regenerating apparatus of a present Example. Sectional drawing which shows the case where curvature arises in the tray panel of the optical disk reproducing | regenerating apparatus of a present Example. Sectional drawing which shows the conventional optical disk reproducing | regenerating apparatus. The figure which shows the conventional optical disk reproducing | regenerating apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Disc tray 2, 6 ... Tray panel, 3 ... Housing | casing, 301 ... Concave part, 4 ... Cushion material, 5 ... Optical disk, 7 ... Packing part (cushion part) 71 ... Bottom part, 72 ... Convex part, 702 ... Inclination , 10 ... opening, 31 ... front panel, 100 ... optical disk reproducing apparatus.

Claims (6)

A housing in which an opening is formed in the front panel, and an optical disk is placed, and a slidable position is provided between a storage position in which the optical disk is stored and a drawing position in which the optical panel is pulled out of the housing from the opening. In an optical disc reproducing apparatus comprising a disc tray and a tray panel for closing the opening,
The opening has a concave portion that is recessed inward of the housing from the front panel, is fixed to the bottom surface of the concave portion, and protrudes outward from the housing along the disc tray. An optical disk reproducing device, wherein a packing portion having a protruding portion is provided in the recess. A housing in which an opening is formed in the front panel, and an optical disk is placed, and a slidable position is provided between a storage position in which the optical disk is stored and a drawing position in which the optical panel is pulled out of the housing from the opening. In an optical disc reproducing apparatus comprising a disc tray and a tray panel for closing the opening,
The opening is configured to have a recessed portion that is recessed inward of the housing from the front panel, and a bottom portion that is fixed to the bottom surface of the recessed portion, and along the disk tray, outward of the housing. An optical disk reproducing apparatus, wherein a packing portion including a projecting portion protruding toward the inside is provided in the recessed portion.   In Claim 2, The said packing part has a cushion material function, The said tray panel has a bay part which an upper end part and a lower end part protrude toward the inside of a housing | casing, and a front-end | tip contacts the said packing part. An optical disk reproducing device characterized by comprising.   4. The optical disk reproducing apparatus according to claim 3, wherein the convex portion is configured as an inclined portion whose tip portion is inclined along the inner surface of the bay portion. A housing in which an opening is formed in the front panel, and an optical disk is placed, and a slidable position is provided between a storage position in which the optical disk is stored and a drawing position in which the optical panel is pulled out of the housing from the opening. In an optical disc playback apparatus comprising a disc tray that is formed and a tray panel that closes the opening,
The opening having a recess that is recessed inward of the housing from the front panel and the bottom surface of the recess are fixed to the outside of the housing along the disk tray. The disk tray is slightly pulled out by the bay portion of the tray panel with the upper end portion and the lower end portion projecting inward from the projecting portion, and the front end contacts the packing portion. A wind noise flow path section is formed in which wind noise that flows along the surface of the optical disk flows toward the inside of the housing when it is released, and U-turns and flows toward the outside of the housing. An optical disk playback device. 6. The optical disk reproducing apparatus according to claim 5, wherein the wind noise flow path portion is formed such that a portion where the wind noise portion makes a U-turn is formed inside the housing rather than the front panel portion.

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