JP4118693B2 - Disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disk device capable of selectively reproducing CDs and MDs, and more particularly to a disk device having an improved disk introduction portion to a disk transport mechanism.
[0002]
[Prior art]
A conventional in-vehicle disk device, for example, has a CD transport mechanism and an MD transport mechanism arranged in a stacked manner in a housing having a front panel having a disk insertion opening for both CD and MD. In this case, an MD transport mechanism is disposed above the CD transport mechanism, and the disk device is made thinner by the disposition. A CD guide member is disposed at the front portion of the CD transport mechanism at a portion corresponding to the disc insertion slot on the back side of the front panel. This CD guide member is formed by partitioning an MD introduction port at the upper part and a CD introduction port at the lower part, and the MD / CD guide member is attached to the CD guide member so as to be rotatable in the vertical direction. The MD / CD guide member is urged in a direction to narrow the upper MD introduction port, and when the MD is inserted, the MD / CD guide member is abutted and rotated at the tip of the MD to widen the MD introduction port. Such an MD / CD guide member is held at the half-open position of the MD inlet when the MD or CD disc is not inserted.
[0003]
That is, when the MD is inserted from the disc insertion opening of the front panel, the MD / CD guide member is rotated in the direction in which the MD introduction opening is expanded while the tip of the MD abuts against the MD / CD guide member. The MD is guided and inserted into the MD introduction port by the CD guide member. When the MD is not inserted, the MD / CD guide member is held at a retracted position where the MD introduction port is narrowed by the rotational displacement due to the biasing force and the CD introduction port is not blocked at the half-open position of the MD introduction port. Therefore, in this state, the CD can be inserted from the disc insertion port on the front panel toward the CD introduction port.
[0004]
As a conventional disk device of this type, one that can selectively reproduce a CD and an MD cartridge is already known (for example, see Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-185346
[Problems to be solved by the invention]
Since the conventional disk device is configured as described above, the MD transport mechanism is arranged on the upper side of the CD transport mechanism to reduce the thickness of the entire device. However, the MD / CD disposed at the front of the transport mechanism. The guide member is urged in a direction to narrow the MD introduction port, and only guides the MD to the MD introduction port at the time of insertion, does not have a guidance function at the time of CD insertion, and the MD / CD guide Since the member is held at the half-open position of the MD introduction port when the CD is inserted, for example, when a CD is inserted obliquely upward from the disc insertion port of the front panel, the tip of the CD enters the MD transport mechanism side and the MD There has been a problem that a CD is poorly inserted due to being caught by parts of the transport mechanism. In addition, when the MD is inserted obliquely downward from the disc insertion port on the front panel, the MD tip remains in contact with the tip of the MD / CD guide member substantially perpendicularly and is guided into the MD introduction port. There was a problem that the inductivity of MD by the MD / CD guide member was lost.
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a highly reliable disk device capable of reliably and smoothly guiding a CD or MD to a predetermined transport mechanism side. To do.
[0008]
Further, the present invention prevents the MD introduction port from being blocked when the CD is inserted, so that the CD is not erroneously inserted into the MD transport mechanism side, and the CD and MD are inserted into the predetermined transport mechanism side by one MD / CD guide member. An object of the present invention is to obtain a disk device that can be surely and smoothly guided.
[0009]
[Means for Solving the Problems]
In the disk device according to the present invention, a CD transport mechanism and an MD transport mechanism are arranged in a stacked manner in a housing having a front panel having a disk insertion opening for both CD and MD, and located at the front of the CD transport mechanism. in the disk apparatus having a CD guide members that form the MD inlet port located on the front of the CD inlet and MD conveying mechanism, the CD guide member, MD having a biasing force in a direction for closing the MD inlet The CD / CD guide member is rotatably attached, and the MD / CD guide member is held at the fully closed position of the MD introduction port by an urging force, and the MD / CD guide member is pressed by the MD tip when the MD is inserted. with induces MD in the MD inlet while rotating in the opening direction of the inlet, the both ends of the MD / CD guide member, the tip of the MD inserted in front protrudes from the disc insertion opening The tip of the MD while rotating in the opening direction of the contact with the MD / CD guide member MD inlet is provided with a guide protrusion portion for inducing the MD inlet.
[0011]
The tip of the guide protrusion of the disk apparatus according to the present invention is bent and inclined in a substantially square shape toward the CD introduction port, and the tip of the MD inserted from the disk insertion port comes into contact with the MD / CD. A tip guide piece for guiding the tip of the MD in the direction of the MD inlet through the guide projection piece while rotating the guide member in the opening direction of the MD inlet is formed.
[0012]
In the disk device according to the present invention, the front end of the CD insertion direction is brought into contact between the guide projections of the MD / CD guide member with the MD / CD guide member fully closing the MD introduction port. A CD guiding portion inclined in the direction of guiding to the CD inlet is formed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below.
Embodiment 1 FIG.
1 is a perspective view showing a main part of an in-vehicle disk device according to Embodiment 1 of the present invention, FIG. 2 is a partially enlarged sectional view of a front portion of the disk device in FIG. 1, and FIG. 3 is a disk device in FIG. FIG. 4 is a partially cutaway front view of FIG. 3, and FIG. 5 is a plan view for explaining a related configuration of the CD guide member and the MD / CD guide member in FIG. .
In FIG. 1, between the upper surface side frame 1 and the lower surface side frame 2, as shown in FIG. 2, a CD transport mechanism 3 and an MD transport mechanism 4 are arranged in a stacked manner. In this case, the MD transport mechanism 4 is disposed above the CD transport mechanism 3.
[0014]
The MD transport mechanism 4 includes an MD retracting member 5 that is slidably disposed at a position where the MD is sandwiched, and an MD holder 6 that regulates the orientation of the MD by the MD retracting member 5 sliding and guiding in a predetermined orientation. A unit support member 7 that holds the MD holder 6 and raises and lowers the MD to the reproduction / discharge position; an MD / CD guide member 8 that is arranged on the front side of the MD holder 6 and draws the MD into the MD holder 6; A front CD guide member 9 that rotatably supports the guide member 8, and left and right disc guides 10 that are fixedly disposed on both sides of the front end side of the upper surface side frame 1 to support the CD guide member 9 rotatably; 11.
[0015]
Here, the related configuration of the MD / CD guide member 8, the CD guide member 9, and the disc guides 10 and 11 will be described in more detail.
First, the left and right disc guides 10 and 11 are fixed at both ends of the front lower surface of the upper surface side frame 1 with an interval L1 (see FIG. 4), and the interval L1 is set to a narrow interval in which only the MD can be inserted. ing. Further, hanging piece portions (CD guide piece portions) 10a and 11a are integrally formed at the end portions of the disk guides 10 and 11 on the non-facing surface side, and the interval L2 between the hanging piece portions 10a and 11a is as follows. A wide interval is set so that CDs can be inserted.
[0016]
A CD guide member 9 is rotatably supported across the disk guides 10 and 11. As shown in FIG. 4, the CD guide member 9 has an MD inlet 12 formed in the upper part and a CD inlet 13 formed in the lower part. The upper MD introduction port 12 is formed between the left and right disc guides 10 and 11 between the lower surface of the front end portion of the upper frame 1 and the upper surface of the CD guide member 9, and the lower CD introduction port 13 is formed on the left and right discs. The guides 10 and 11 are formed on the lower surface side of the CD guide member 9 between the hanging pieces 10a and 11a.
[0017]
The CD guide member 9 has an urging force in a direction in which the upper surfaces of both ends abut against the lower surfaces of the left and right disc guides 10 and 11, and abuts against the lower surfaces of the disc guides 10 and 11 by the urging force. Therefore, the CD guide member 9 is rotatable in the direction in which the upper MD inlet 12 is widened. Then, both end portions of the MD / CD guide member 8 are rotatably supported on the front end side of the CD guide member 9. The MD / CD guide member 8 opens and closes the MD introduction port 12. Here, the CD guide member 9 has a recess 9a (see the broken line in FIG. 3 and FIG. 5) in the center of the front end side, and the MD / CD guide member 8 is fitted into the recess 9a. Thus, both end portions of the MD / CD guide member 8 are rotatably supported by the CD guide member 9.
[0018]
In this way, the MD / CD guide member 8 rotatably supported by the CD guide member 9 has an urging force in a direction to close the upper MD introduction port 12, and the MD / CD guide is generated by the urging force. The front edge portion (free end) of the member 8 abuts against the front end portion of the upper surface side frame 1 and is held at the fully closed position of the MD introduction port 12.
[0019]
Further, on both end sides of the front edge portion of the MD / CD guide member 8, guide protrusions 8a that protrude obliquely downward and forward are integrally formed. A tip guide piece 8b extending downward from the tip of the guide protrusion 8a at a predetermined bending angle is formed on the tip of the guide protrusion 8a. Therefore, the guide projection piece 8a and the tip guide piece portion 8b are formed to be bent in a substantially square shape, and the tip portion of the MD contacting the tip guide piece portion 8b is moved onto the guide projection piece 8a. It leads to the upper MD inlet 12.
[0020]
In the MD / CD guide member 8, a CD guiding portion 8c is formed between the guide projecting piece portions 8a on both ends. The CD guide portion 8c is folded back on the front end side of the MD / CD guide member 8 and extends along the lower surface of the MD / CD guide member 8. The MD / CD guide member 8 pushes the MD inlet 12 with a biasing force. In the closed state (the front end of the MD / CD guide member 8 is in contact with the front end of the upper surface side frame 1), the CD abutting on the CD guiding portion 8c is inclined so as to be guided to the CD introduction port 13. Has been.
[0021]
On the other hand, the CD transport mechanism 3 also serves as a part of the MD transport mechanism 4. The MD / CD guide member 8 and the MD / CD guide member 8 serve as a part of the CD inlet 13. A CD transport member 14 that can be moved up and down to transport the introduced CD to a predetermined playback position and transport the CD at the playback position in the ejection direction, and the MD holder that is disposed opposite to the CD transport member 14 with the CD interposed therebetween. 6 and the rear CD guide member 6a, which is a component of the MD holder 6, and the CD transport member 14, and the CD transport member 14 is raised when the CD is inserted and ejected to press the CD to give the transport force and the CD. Is configured to include a base roller (support member for the CD transport member 14) 15 and the like for lowering and retracting the CD transport member 14 in accordance with clamping to a turntable (not shown).
[0022]
The disc reproducing apparatus having the CD transport mechanism 3 and the MD transport mechanism 4 configured as described above is built in a housing (not shown) having a front panel 20 (see FIG. 2) having a design on the front surface. The front panel 20 is provided with a disc insertion opening 21 for both CD and MD. In this disc insertion slot 21, the part of the CD insertion slot is formed wider than the part of the MD insertion slot.
[0023]
A disc insertion guide 22 is provided at the rear of the disc insertion slot 21 in the front panel 20. The disc insertion guide 22 regulates the CD or MD inserted from the disc insertion slot 21 to a height and inclination corresponding to the disc reproducing apparatus.
[0024]
Next, the operation will be described. 6 and 7 are diagrams for explaining the operation when a CD is inserted.
When the CD or MD is not inserted, the MD / CD guide member 8 is in a state of closing the MD introduction port 12 with an urging force. In this state, when the CD 23 is inserted obliquely upward as shown by the solid line in FIG. 6 and inserted from the disc insertion slot 21 of the front panel 20, the CD 23 has a leading end in the insertion direction toward the MD introduction slot 12 above the CD introduction slot 13. Since the MD inlet 12 is closed by the MD / CD guide member 8 as described above, the leading end of the CD 23 in the insertion direction is the CD guiding portion 8c between the two guide protrusions 8a of the MD / CD guide member 8. Abut. At this time, the CD guiding portion 8c is inclined in a direction in which the leading end in the insertion direction of the CD 23 in contact with the CD guiding portion 8c is guided toward the lower CD introduction port 13, so that the CD 23 is shown in FIG. As shown by the alternate long and short dash line, it is moved to the CD introduction port 13 while approaching the horizontal posture, and as shown in FIG. 7, it is smoothly inserted from the CD introduction port 13 to the predetermined CD transport mechanism 3 side.
[0025]
8 and 9 are diagrams for explaining the operation during MD insertion. The MD insertion operation will be described with reference to FIG.
When the MD / CD guide member 8 closes the MD introduction port 12 with an urging force and the MD 24 is inserted obliquely downward as shown in FIG. 8 from the disc insertion port 21 of the front panel 20, the MD 24 is inserted at the tip in the insertion direction. Heads toward the CD inlet 13 at the lower part of the MD inlet 12 but passes through the disc insertion guide 22 toward the CD inlet 13 and the leading edge guide piece 8b of the MD / CD guide member 8 projects into the MD 24 entry path. Therefore, the distal end of the MD 24 in the insertion direction comes into contact with the distal end guide piece 8b. When the distal end guide piece 8b of the MD / CD guide member 8 is pressed at the distal end of the MD 24 in the insertion direction, the MD / CD guide member 8 rotates in the downward direction of the distal end guide piece 8b against the urging force. Then, the MD inlet 12 is opened (see FIG. 9).
[0026]
Then, as shown in FIG. 10, in the process in which the MD / CD guide member 8 is rotated to the rotation limit position against the urging force, the tip of the MD 24 that is in contact with the tip guide piece 8b is the MD / CD. By shifting to the guide protrusion piece 8 a of the guide member 8, the leading end of the MD 24 is drawn into the MD introduction port 12 by the guide protrusion piece 8 a. That is, as described above, when the MD / CD guide member 24 is in the rotation limit position against the urging force, the guide projecting piece 8a is held in a state inclined obliquely downward at the fully open position of the MD introduction port 12. Since the tip of the MD 24 is drawn into the MD inlet 12 along the inclined surface of the guide protrusion 8a, the MD 24 moves from the MD inlet 12 to a predetermined MD transport mechanism while approaching the horizontal posture as shown in FIG. It is smoothly inserted into the 4 side.
[0027]
According to the first embodiment described above, the CD guide member 9 that is disposed on the back side of the front panel 20 and corresponding to the disc insertion slot 21 and that forms the MD inlet 12 at the upper part and the lower CD inlet 13 as a partition. An MD / CD guide member 8 that opens and closes the MD introduction port 12 is rotatably attached to the front end side, and the MD / CD guide member 8 is always urged to the fully closed position of the MD introduction port 12. Since the MD / CD guide member 8 is configured to introduce the CD 23 into the lower CD introduction port 13 in the closed position, the CD 23 is inserted obliquely in the direction of the MD introduction port 12 from the CD / MD disc insertion port 21. However, the insertion direction of the CD 23 can be corrected in the direction of the CD introduction port 13 by the MD / CD guide member 8, and therefore, erroneous insertion of the CD 23 can be reliably prevented. Kill.
[0028]
Further, according to the first embodiment, the left and right guide protrusions 8a are formed on both end sides of the MD / CD guide member 8 so as to protrude obliquely downward and obliquely forward and downward, and these guide protrusions 8a are formed. Since the MD / CD guide member 8 is formed with a front end guide piece 8b that bends in a substantially square shape in front of the CD introduction port 13 with the MD introduction port 12 fully closed. The front end of the MD 24 is brought into contact with the front end guide piece 8b to smoothly rotate the MD / CD guide member 8 in the opening direction of the MD introduction port 12, and the front end of the MD 24 is guided from the front end guide piece 8b. Can be guided to the MD introduction port 12 so that even when the MD 24 is inserted obliquely downward in the direction of the CD introduction port 13, the insertion direction is corrected in the direction of the MD introduction port 12. Be able to There is an effect that erroneous insertion of D24 can be reliably prevented.
[0029]
Furthermore, according to the first embodiment, the CD guiding portion 8c that is inclined toward the inner direction of the CD introduction port 13 is formed between the guide projecting piece portions 8a at the front end edge portion of the MD / CD guide member 8. Therefore, even when the CD 23 is inserted obliquely upward toward the MD introduction port 12, the leading end of the CD 23 in the insertion direction comes into contact with the CD guiding portion 8c and the inclined surface of the CD guiding portion 8c. , The insertion direction of the CD 23 can be corrected, so that it is possible to reliably prevent erroneous insertion of the CD 23.
[0030]
Embodiment 2. FIG.
In the first embodiment, the CD guide portion 8c is folded between the guide protrusions 8a at the front end edge of the MD / CD guide member 8, but the flat MD / CD guide member 8 is provided with the MD introduction. In the fully closed position of the mouth 12, the insertion direction tip portion of the CD 23 inserted obliquely upward in the direction of the MD introduction port 12 is inevitably inclined in the direction of guiding to the CD introduction port 13. An inclined surface portion between both guide protrusions 8a of the CD guide member 8 may be used as the CD guiding portion 8c.
[0031]
【The invention's effect】
As described above, according to the present invention, the CD transport mechanism and the MD transport mechanism are arranged in a stacked manner in a housing having a front panel having a disc insertion opening for both CD and MD, and the front portion of the CD transport mechanism. in the disk apparatus having a CD guide members that form the MD inlet port located on the front of the CD inlet and MD conveying mechanism located in, the CD guide member, the biasing force in a direction for closing the MD inlet An MD / CD guide member having a pivot is attached to the MD / CD guide member so that the MD / CD guide member is held at the fully closed position of the MD introduction port by an urging force, and the MD / CD guide member is pressed by the MD tip when the MD is inserted. with induces MD in the MD inlet while rotating in the opening direction of the MD inlet is, on both end sides of MD / CD guide member protrudes in front, ahead of the MD inserted from the disk insertion opening Because There is provided a guide protrusion portion for the distal end portion of the MD while rotating the MD / CD guide member in the opening direction of the MD inlet abuts to divert to the MD inlet originally it is inserted into the MD inlet even when the MD is inserted obliquely or diagonally downward in the direction of the CD inlet to, the insertion direction can be corrected in the direction of the MD inlet is possible to reliably prevent erroneous insertion of MD This has the effect of improving reliability.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of an in-vehicle disk device according to Embodiment 1 of the present invention.
FIG. 2 is a partial enlarged cross-sectional view of the front part of the disk device of FIG. 1;
FIG. 3 is a partial plan view of the front part of the disk device of FIG. 1;
4 is a partially cutaway front view of FIG. 3. FIG.
5 is a plan view for explaining a related configuration of the CD guide member and the MD / CD guide member in FIG. 1. FIG.
FIG. 6 is an explanatory diagram of an operation when a CD is inserted.
FIG. 7 is an operation explanatory diagram when a CD is inserted.
FIG. 8 is an operation explanatory diagram when an MD is inserted.
FIG. 9 is an explanatory diagram of an operation when an MD is inserted.
FIG. 10 is a diagram illustrating an operation when an MD is inserted.
FIG. 11 is an operation explanatory diagram when an MD is inserted.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper surface side frame, 2 Lower surface side frame, 3 CD conveyance mechanism, 4 MD conveyance mechanism, 5 MD drawing member, 6 MD holder, 7 Unit support member, 8 MD / CD guide member, 9 CD guide member, 9a Recessed part 10, 11 disc guide, 10a, 11a hanging piece, 12 MD introduction port, 13 CD introduction port, 14 CD transport member, 15 base roller (support member for CD transport member), 20 front panel, 21 disc insertion port, 22 Disc insertion guide, 23 CD, 24 MD.

Claims (3)

A CD transport mechanism and an MD transport mechanism are arranged in a stacked manner in a housing having a front panel having a disc insertion opening for both CD and MD, and a CD introduction port and an MD transport mechanism located at the front of the CD transport mechanism are arranged. in the disk apparatus having a CD guide members that form the MD inlet port located in the front, the CD guide the member, the MD / CD guide member having a biasing force in a direction for closing the MD inlet times The MD / CD guide member is movably attached and held at the fully closed position of the MD introduction port by the biasing force, and the MD / CD guide member is pressed by the MD tip when the MD is inserted to with induces MD in the MD inlet while rotating in the opening direction, on both sides of the MD / CD guide member protrudes in front, the tip of the MD inserted from the disk insertion opening contact Disk apparatus characterized in that a guide protrusion portion for guiding the leading end of the MD while rotating the MD / CD guide member in the opening direction of the MD inlet to the MD inlet Te. The leading end of the guide protrusion is bent and inclined in a generally square shape toward the CD inlet, and the tip of the MD inserted from the disc insertion slot comes into contact with the MD / CD guide member at the MD inlet. the disk of claim 1, wherein the front guide pieces for the leading end of the MD while rotating in the opening direction via the guide protrusion portion to guide the direction of the MD inlet is formed apparatus. Between the guide projections of the MD / CD guide member, the MD / CD guide member abuts the front end of the CD insertion direction in a state where the MD introduction port is fully closed, and is guided to the CD introduction port. the CD guide portion is inclined is formed a disk apparatus according to claim 1 or claim 2 wherein.

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