JP2008108351A - Optical disk reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk reproducing device in which the deviation of the position of a disk tray with respect to an aperture can be reduced by simple configuration. <P>SOLUTION: The optical disk reproducing device includes; a front panel which is provided with an opening penetrating to the front and the back and is provided with an internal thread section opening to the back on the rear; an L-shaped fitting which constitutes an L-shape, is provided with a slot and is fixed to the front panel by fastening an external thread to the internal thread section of the front panel via the slot; a chassis section which is provided with the internal thread section opened upward in the back portion fixed to the front panel; a reproducing section which is provided with a disk tray sliding forward and backward via the aperture on the front and reproduces the data recorded to the optical disk; and a bracket which secures the reproducing section, is provided with a hole vertically penetrating through the back portion, and is fixed to the chassis section by fastening an external thread to the internal thread section of the chassis section via the hole. The L-shaped fitting includes a bent part which is bent upward and the bracket includes a notched part fitting to the bent part in a front end portion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an optical disc reproducing apparatus for reproducing data recorded on an optical disc.

  As a conventional optical disk reproducing apparatus, a disk tray is provided on a front panel, a disk tray on which an optical disk is placed is transported from the outside of the housing to the inside of the housing, and data recorded on the transported optical disk is reproduced. It is known (for example, refer to Patent Document 1).

FIG. 4 is a perspective view showing a schematic configuration of a conventional optical disc reproducing apparatus.
The optical disc playback apparatus 100 includes a playback unit 3, a top cover 9, a rear panel 10, a front panel 200, and a chassis unit 400. The front panel 200 includes an opening 201 that opens forward and backward. The upper cover 9 and the rear panel 10 are each fixed to the chassis 400 by screws (not shown).

  The reproducing unit 3 includes a disc tray 301 on the front surface, and a concave portion 302 on the upper surface of the disc tray 301. The vertical height and the horizontal width of the disc tray 301 are smaller than the vertical height and the horizontal width of the opening 201.

FIG. 5 is a rear perspective view showing the configuration of the optical disc playback apparatus 100.
In FIG. 5, the direction of arrow A is the front of the optical disc playback apparatus 100.
The front panel 200 includes a convex portion 202 and a convex portion 203 that protrude rearward at the upper portion and the lower portion, respectively, and a female screw portion 204 that opens upward at each of the left and right portions of the convex portion 203.

  The chassis portion 400 has a U-shape in which the right end portion and the left end portion are bent upward, and includes a hole 401 penetrating vertically in the front portion. The chassis portion 400 includes bosses 411 on the upper surfaces of the left and right portions of the front portion and the rear portion. The boss 411 includes a female screw portion 412 that opens upward.

  The reproducing unit 3 has a bracket 500 fixed to the lower surface with an adhesive or the like. The bracket 500 includes bent portions 511 that protrude outward on the left and right portions of the front portion and the rear portion, respectively, and the bent portions 511 include holes 512 that penetrate vertically.

  The front panel 200 is fixed to the chassis portion 400 by inserting the male screw 7 into the hole 401 of the chassis portion 400 and fastening the male screw 7 to the female screw portion 204. The bracket 500 to which the reproducing unit 3 is fixed is fixed to the chassis unit 400 by inserting the male screw 7 into the hole 512 and fastening the male screw 7 to the female screw unit 412 of the boss 411. The reproducing unit 3 is arranged so that the position of the disc tray 301 is positioned behind the opening 201.

  The reproducing unit 3 includes a tray driving unit and a control unit (not shown). The control unit performs control of the playback unit 3, control of the tray drive unit, and the like based on a signal output from an operation unit (not shown) of the optical disc playback apparatus 100. The tray drive unit slides the disc tray 301 back and forth between a position protruding from the front of the opening 201 to a position behind the front panel 200 under the control of the control unit.

  The disc tray 301 transports the optical disc 8 placed in the concave portion 302 to the rear of the front panel 200 via the opening 201, that is, inside the apparatus, by the tray driving unit. Further, the disc tray 301 conveys the optical disc 8 placed in the concave portion 302 from the inside of the apparatus to the front of the front panel 200 through the opening 201 by the tray driving unit.

  The reproducing unit 3 includes a turntable, a clamper, a spindle motor, and an optical pickup (not shown). Under the control of the control unit, the reproducing unit 3 holds the optical disc 8 conveyed inside by the disc tray 301 with a turntable and a clamper, and rotates the optical disc 8 by rotating the spindle motor.

  The optical pickup reads data recorded on the optical disk 8 rotated by a spindle motor.

  With the above configuration, the optical disc reproducing apparatus 100 transports the optical disc 8 from the outside of the apparatus to the inside by the disc tray 301 sliding back and forth through the opening 201 of the front panel 200, and records on the transported optical disc 8. Play the recorded data.

Japanese Patent Laid-Open No. 6-251481

  FIGS. 6A and 6B are front views showing the assembly of the front panel 200, the chassis 400, and the bracket 500 of the conventional optical disc reproducing apparatus 100. FIG.

  As shown in FIGS. 4 and 5, the conventional optical disc reproducing apparatus 100 needs to slide the disc tray 301 back and forth through the opening 201 of the front panel 200. And the width in the left-right direction is smaller than the height in the up-down direction and the width in the left-right direction of the opening 201, and is designed so that there are gaps between the upper and lower surfaces and the left and right side surfaces of the disc tray 301 and the inner wall of the opening 201. Yes.

  However, in the process of manufacturing the chassis 400, an error may occur in the position where the hole 401 is processed due to an error in processing dimensions or expansion / contraction of the member due to a temperature change. Further, as shown in FIG. 5, when fixing the front panel 200 to the chassis part 400, the male screw 7 is inserted into the hole 401 of the chassis part 400 and fastened to the female screw part 204 of the front panel 200. The outer diameter of the male screw 7 needs to be smaller than the inner diameter of the hole 401, and an error may occur in the position where the front panel 200 is fixed due to the gap between the outer periphery of the male screw 7 and the inner wall of the hole 401. .

  As shown in FIG. 5, in the conventional optical disc reproducing apparatus 100, the bracket 500 to which the reproducing unit 3 is fixed is fixed to the chassis unit 400 by the male screw 7, and the front panel 200 is fixed to the chassis unit 400 by the male screw 7. Therefore, the error in the horizontal processing position of the hole 401 in the manufacturing process of the chassis 400 and the error in the horizontal fixing position that occurs when the front panel 200 is fixed to the chassis 400 with the male screw 7 are accumulated. As a result, as shown in FIG. 6A, the horizontal position of the disc tray 301 is displaced from the position of the opening 201. For example, in the manufacturing process of the chassis part 400, the position of the hole 401 in the horizontal direction is processed by shifting by 2 mm to the right, and the outer diameter of the male screw 7 is the inner diameter of the hole 401 of the chassis part 400 and the hole 512 of the bracket 500. In the case where each is smaller by 0.5 mm, the horizontal position of the disc tray 301 relative to the position of the opening 201 is a maximum of 3 mm to the right due to errors in the processing position in the manufacturing process and accumulation of displacement of the fixed position of the male screw 7. It will shift.

  Further, in the conventional optical disc reproducing apparatus 100, in the process of manufacturing the boss 411 of the chassis unit 400, an error may occur in the height of the boss 411 due to an error in processing dimensions or expansion / contraction of a member due to a temperature change. In the manufacturing process of the bracket 500, an error may occur in the height from the upper surface to the lower surface of the bent portion 511. For this reason, due to the accumulation of the vertical error of the boss 411 in the process of manufacturing the boss 411 and the error of the height from the upper surface to the lower surface of the bent portion 511 in the manufacturing process of the bracket 500, FIG. As shown, the vertical position of the disc tray 301 is displaced from the position of the opening 201. For example, when the height of the boss 411 is reduced by 1.5 mm in the manufacturing process of the boss 411, and the height from the upper surface to the lower surface of the bent portion 511 is reduced by 1.5 mm in the manufacturing process of the bracket 500. Therefore, the vertical position of the disc tray 301 with respect to the position of the opening 201 is shifted by 3 mm downward at the maximum.

  As described above, the opening portion is caused by the error in the horizontal processing position of the hole 401 in the manufacturing process of the chassis portion 400 and the displacement of the fixed position due to the gap between the outer diameter of the male screw 7 and the inner diameter of the hole into which the male screw 7 is inserted. The horizontal position of the disc tray 301 is shifted from the position 201, the vertical height of the boss 411 in the process of manufacturing the boss 411, and the height from the upper surface to the lower surface of the bent portion 511 in the manufacturing process of the bracket 500. If the vertical position of the disc tray 301 is displaced from the position of the opening 201 due to the accumulated error, the left and right gaps or the upper and lower gaps generated between the disc tray 301 and the opening 201 are different, and the optical disc playback is different. The appearance of the device 100 is impaired. Also, when the horizontal and vertical positions of the disc tray 301 are displaced from the position of the opening 201, the disc tray 301 comes into contact with the inner wall of the opening 201, and the disc tray 301 is placed in front of the opening 201. It becomes impossible to slide.

  The present invention provides a simple configuration in an optical disk reproducing apparatus for conveying an optical disk from the outside of the apparatus to the inside by sliding a disk tray back and forth from an opening of a front panel and reproducing data recorded on the conveyed optical disk. Accordingly, an object of the present invention is to provide an optical disc reproducing apparatus capable of reducing the deviation of the position of the disc tray with respect to the opening.

  According to the first aspect of the present invention, there is provided an optical disc reproducing apparatus for reproducing data recorded on an optical disc, a front panel having an opening that penetrates in the front and rear directions and a female screw portion that opens in the rear and a lower portion. Is formed in an L-shape projecting rearward, has a long hole penetrating in the front-rear direction and having a longitudinal direction in the vertical direction, and a male screw is fastened to the female screw portion of the front panel through the long hole. A chassis having an L-shaped bracket fixed to the panel, a front portion fixed to the front panel and a female screw portion opened upward at the rear portion, and an opening on the front surface disposed behind the front panel. A reproducing unit that includes a disc tray that slides back and forth through the disc tray, and reproduces data recorded on the optical disc transported by the disc tray, and a rear portion that adheres the reproducing unit to the upper surface. And a bracket that is fixed to the chassis portion by a male screw being fastened to the female screw portion of the chassis portion through the hole, and the L-shaped bracket is bent upward. The bracket includes a notch that fits in the bent portion at a front end portion.

  According to the present invention, in an optical disc playback apparatus for transporting an optical disc from the outside to the inside of the device by sliding the disc tray back and forth from the opening of the front panel and reproducing data recorded on the transported optical disc, With this configuration, it is possible to provide an optical disc reproducing apparatus that can reduce the deviation of the position of the disc tray with respect to the opening.

  Embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is used about the part same as the component shown by the prior art.

FIG. 1 is a perspective view showing a schematic configuration of an optical disk reproducing apparatus according to an embodiment of the present invention.
The optical disc reproducing apparatus 1 includes a front panel 2, a reproducing unit 3, a chassis unit 4, an upper surface cover 9, and a rear panel 10. The front panel 2 includes an opening 201 that opens forward and backward. The upper cover 9 and the rear panel 10 are each fixed to the chassis part 4 by screws (not shown).

  The reproducing unit 3 includes a disc tray 301 on the front surface, and a concave portion 302 on the upper surface of the disc tray 301. The vertical height and the horizontal width of the disc tray 301 are smaller than the vertical height and the horizontal width of the opening 201.

FIG. 2 is a rear perspective view showing the configuration of the optical disk reproducing apparatus 1 of the present embodiment.
In FIG. 2, the direction of arrow A is the front of the optical disc playback apparatus 1.
The optical disc playback apparatus 1 includes an L-shaped metal fitting 6 in addition to the above-described configuration.
The front panel 2 includes a convex portion 202 and a convex portion 203 that protrude rearward at an upper portion and a lower portion, respectively, and a female screw portion 204 that opens upward at each of a right portion and a left portion of the convex portion 203. The front panel 2 includes bosses 205 on the left and right portions of the back surface. The boss 205 includes a female screw portion 206 that opens rearward.

  The L-shaped metal fitting 6 has an L-shape in which a lower portion protrudes rearward, and includes a long hole 601 penetrating back and forth in a right side portion and a left side portion and having a longitudinal direction in a vertical direction. The L-shaped metal fitting 6 includes a bent portion 603 that is bent at a substantially right angle upward at a center position of a portion that protrudes rearward from the lower portion, and is a female screw that opens upward at the right side portion and the left side portion of the bent portion 603, respectively. Part 602.

  The chassis portion 4 forms a U-shape in which the right end portion and the left end portion are bent upward, and includes a hole 401 penetrating vertically in the front portion. The chassis portion 400 includes bosses 402 on the upper surface of the right and left portions of the rear portion. The boss 402 includes a female screw portion 403 that opens upward.

  The reproduction unit 3 has a bracket 5 fixed to the lower surface thereof with an adhesive or the like. The bracket 5 includes bent portions 501 that protrude outward on the left and right portions of the rear portion, and the bent portions 501 include holes 502 that penetrate vertically. The bracket 5 includes a notch 504 at the front end. The width in the left-right direction of the notch 504 is slightly larger than the width in the left-right direction of the bent portion 603 of the L-shaped metal fitting 6. The bracket 5 includes holes 503 penetrating vertically in the right side portion and the left side portion of the notch 504.

  The L-shaped metal fitting 6 is fixed to the front panel 2 by inserting the male screw 7 into the long hole 601 and fastening the male screw 7 to the female screw portion 206. The front panel 2 is fixed to the chassis portion 4 by inserting the male screw 7 into the hole 401 of the chassis portion 4 and fastening the male screw 7 to the female screw portion 204.

  The bracket 5 to which the reproduction unit 3 is fixed is first inserted into the hole 503 with the male screw 7 inserted into the hole 503 with the notch 504 fitted to the bent part 603 of the L-shaped metal fitting 6. 6, the male screw 7 is inserted into the hole 502, and the male screw 7 is fastened to the female screw portion 403 of the boss 402. Fixed.

  The reproducing unit 3 includes a tray driving unit and a control unit (not shown). The control unit performs control of the playback unit 3, control of the tray drive unit, and the like based on a signal output from an operation unit (not shown) of the optical disc playback apparatus 1. The tray drive unit slides the disc tray 301 back and forth between a position protruding from the front of the opening 201 to a position behind the front panel 2 under the control of the control unit.

  The disc tray 301 conveys the optical disc 8 placed in the concave portion 302 to the rear of the front panel 2 through the opening 201, that is, inside the apparatus, by the tray driving unit. Further, the disc tray 301 conveys the optical disc 8 placed in the concave portion 302 from the inside of the apparatus to the front of the front panel 2 through the opening 201 by the tray driving unit.

  The reproducing unit 3 includes a turntable, a clamper, a spindle motor, and an optical pickup (not shown). Under the control of the control unit, the reproducing unit 3 holds the optical disc 8 conveyed inside by the disc tray 301 with a turntable and a clamper, and rotates the optical disc 8 by rotating the spindle motor.

  The optical pickup reads data recorded on the optical disk 8 rotated by a spindle motor.

  With the configuration described above, the optical disc playback apparatus 1 transports the optical disc 8 from the outside to the inside of the device by the disc tray 301 sliding back and forth through the opening 201 of the front panel 2, and records on the transported optical disc 8. Play the recorded data.

3A and 3B are diagrams showing the assembly of the front panel 2, the reproducing unit 3, the chassis unit 4, and the bracket 5 of the optical disk reproducing apparatus 1 according to the present embodiment. FIG. 3A is a top view and FIG. FIG.
In FIG. 3A, the downward direction is the front of the optical disc playback apparatus 1.

  As shown in FIG. 3A, the bracket 5 for fixing the reproducing unit 3 is fixed to the L-shaped metal fitting 6 in a state where the notch 504 provided at the front end is fitted to the bent portion 603 of the L-shaped metal fitting 6. Accordingly, there is no horizontal displacement between the front portion of the bracket 5 and the L-shaped metal fitting 6. For this reason, the horizontal displacement between the front portion of the bracket 5 and the front panel 2 causes the outer diameter of the male screw 7 and the L-shaped bracket 6 when the L-shaped bracket 6 is fixed to the front panel 2. This is only an error caused by a gap between the long hole 601 and the width in the left-right direction. Therefore, for example, when the outer diameter of the male screw 7 is 0.5 mm smaller than the width in the left-right direction of the long hole 601, the horizontal direction of the disc tray 301 with respect to the position of the opening 201 due to the displacement of the fixing position of the male screw 7. The deviation of the fixed position is 0.25 mm at the maximum.

  For this reason, the horizontal displacement between the bracket and the front panel that occurs in the optical disk reproducing apparatus 1 of the present embodiment is different from the bracket and the front panel that occur in the conventional optical disk reproducing apparatus described with reference to FIGS. Therefore, the discrepancy in the horizontal position of the disc tray 301 with respect to the opening 201 can be reduced.

  Further, when the vertical fixing position of the disc tray 301 is displaced with respect to the position of the opening 201, the front panel is inserted through the long hole 601 of the L-shaped metal fitting 6 as shown in FIG. The vertical fixing position in front of the bracket 5 can be adjusted by loosening the male screw 7 fastened to the second female screw portion 206 and moving the position of the male screw 7 with respect to the inner wall of the long hole 601 up and down. . Accordingly, even if the vertical position of the disc tray 301 is displaced from the position of the opening 201 due to an error in the processing position in the manufacturing process of the L-shaped metal fitting 6 or the bracket 5, the disc tray can be easily processed. Since the vertical position of 301 can be corrected, the deviation of the vertical position of the disc tray 301 with respect to the opening 201 can be reduced.

  With the configuration described above, the optical disc reproducing apparatus 1 according to the present embodiment can reduce the deviation of the horizontal fixing position and the vertical fixing position of the disc tray 301 with respect to the position of the opening 201. It can be prevented that the left and right gaps or the upper and lower gaps generated between 301 and the opening 201 are different and the appearance of the optical disc reproducing apparatus 100 is not damaged. Further, the disc tray 301 comes into contact with the inner wall of the opening 201 due to the deviation of the horizontal fixing position and the vertical fixing position of the disc tray 301 with respect to the position of the opening 201, so that the disc tray 301 is opened. It is possible to prevent the slide from becoming impossible to slide in front of 201.

  The optical disc reproducing apparatus 1 according to the present embodiment has a configuration in which a boss 205 is provided with a female screw portion 206 for fixing the L-shaped metal fitting 6 to the front panel 2, and a female screw portion 403 for fixing the bracket 5 to the chassis portion 4. The boss 402 is provided with a female screw portion 206 directly on the back surface of the front panel 2, and a bent portion that is bent upward is provided on the upper surface of the chassis portion 4, and the female screw portion is provided at the bent portion. A configuration including 403 may be employed. Thereby, the manufacturing cost of the front panel 2 and the chassis part 4 can be reduced.

1 is a perspective view showing a schematic configuration of an optical disk reproducing apparatus according to an embodiment of the present invention. The rear perspective view which shows the structure of the optical disk reproducing | regenerating apparatus 1 of a present Example. FIGS. 3A and 3B are views showing the assembly of the front panel 2, the reproducing unit 3, the chassis unit 4, and the bracket 5 of the optical disc reproducing apparatus 1 of the present embodiment, FIG. 3A is a top view, and FIG. The perspective view which shows schematic structure of the conventional optical disk reproducing | regenerating apparatus. FIG. 3 is a rear perspective view showing the configuration of the optical disc playback apparatus 100. The front view which shows the assembly | attachment of the front panel 200 of the conventional optical disk reproducing device 100, the chassis part 400, and the bracket 500. FIG.

Explanation of symbols

1 optical disk playback device, 2 front panel, 201 opening,
202 convex part, 203 convex part, 204 female thread part, 205 boss, 206 female thread part,
3 playback section, 301 disc tray, 302 recess,
4 Chassis part, 401 hole, 402 boss, 403 female thread part,
5 Bracket, 501 Bend, 502 holes, 503 holes, 504 Notch,
6 L-shaped bracket, 601 long hole, 602 female screw part, 603 bent part,
7 male thread, 8 optical disc, 9 top cover, 10 rear panel,
100 optical disk playback device, 200 front panel,
400 Chassis part, 411 Boss, 412 Female thread part,
500 bracket, 511 bent portion, 512 hole

Claims (1)

2. Description of the Related Art In an optical disk reproducing apparatus for reproducing data recorded on an optical disk, a front panel having an opening that penetrates back and forth and a female screw part that opens rearward on the back surface and an L-shape in which a lower part protrudes rearward are formed. An L-shaped metal fitting fixed to the front panel by passing through the front and rear and having a long hole whose longitudinal direction is the vertical direction and a male screw being fastened to the female screw portion of the front panel through the long hole; A chassis portion having a female screw portion whose front portion is fixed to the front panel and opened upward in the rear portion, and a disk tray that is disposed behind the front panel and slides back and forth through the opening portion on the front surface. A reproduction unit that reproduces data recorded on the optical disc conveyed by the disc tray and a hole that is fixed to the upper surface and penetrates up and down in the rear part. There a bracket fixed to the chassis portion by being fastened to the female threaded portion of the chassis portion via the hole,
The L-shaped bracket includes a bent portion bent upward,
The optical disk reproducing apparatus according to claim 1, wherein the bracket includes a notch that fits into the bent portion at a front end portion.

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