JP2000040289A - Disk changer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simply structured disk changer device capable of surely performing a disk transfer operation and a disk reproducing operation regarding a disk changer device for selecting and reproducing a plurality of disks, especially for performing an overlapped reproducing. SOLUTION: By the rotation of a rotary plate 36 rotated by the rotation of a rotary plate 26, a cam gear is rotated to widen a gap between trays. A gear 37 is rotated by the rotation of the rotary plate 36, a pin engaged with the gear 37 is driven to move disk regulators vertically and then the gap between the disk regulators is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc changer device for selectively reproducing a disc such as a compact disc (CD).

[0002]

2. Description of the Related Art FIG. 13 shows a main part of a conventional disk changer device. In FIG. 13, reference numeral 41 denotes a box-shaped housing, and a disk insertion slot is formed in a front plate 41A of the housing 41. Reference numeral 42 denotes a roller disposed near the disk insertion slot in the housing 41. The disk 43 inserted from the disk insertion slot is transferred into the housing 41 by the roller 42 driven by a motor, and
1 is placed on a tray. One disk 43 of the disks placed on the plurality of trays is pushed out to the center of the housing 41 by the disk take-out mechanism and fixed to the turntable 44. The turntable 44 is rotatably supported on a bottom plate of the housing 41 by a shaft 45.
6 is rotatably held at the distal end. Rotating plate 4
A motor is attached to 6 and the turntable 44 is rotated by the driving force of the motor. The rotary plate 46 is provided with an optical pickup 47, and information recorded on the rotationally driven disk 43 is stored in the optical pickup 47.
Is read in.

[0003]

SUMMARY OF THE INVENTION The present invention provides a disk changer device which can be made smaller in size than the above-mentioned conventional overlap reproduction disk changer device, and which can reliably perform disk exchange and disk reproduction. It is intended for.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention restricts the movement of another selected disk when the selected disk is pushed out of a tray and transferred to a turntable. By interlocking the disc regulating means and the tray opening means for opening the legs between the trays during the overlap reproduction operation, the disc transfer operation and the disc reproduction operation are ensured.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to the first aspect of the present invention is directed to a tray holding means for stacking and holding a plurality of trays in a housing, and a tray which is driven by a driving means and opens a predetermined distance between the trays. A tray opening means, a disc pushing means for pushing a disc placed on a predetermined tray opened by the tray opening means, and a gap through which the disc pushed by the disc pushing means passes. A disc regulating means for regulating the movement of the other disc, wherein the disc passing gap of the disc regulating means is changed in conjunction with the operation of the tray opening means, This ensures the operation of transferring the disk to the turntable and the operation of reproducing the disk in which the disk is mounted on the turntable and driven to rotate.

According to a second aspect of the present invention, a first tray opening mechanism for opening a leg between predetermined trays, and a further leg opening between the trays opened by the first tray opening mechanism. Second
Tray opening means comprising the tray opening mechanism of the first tray opening mechanism at the time of taking out the selected disk, and the second operation at the time of playing the disk. The leg opening operation by the tray opening mechanism can be optimally performed.

According to a third aspect of the present invention, there is provided a tray opening means for inserting a mountain portion of a cam gear rotationally driven by a driving means between the trays to open a leg between the trays. This simplifies the configuration of the tray opening means.

According to a fourth aspect of the present invention, there is provided a gear having a groove formed on an outer peripheral surface and driven to rotate by a driving means;
Disc regulating means including a cylindrical first disc regulating body having a pin inserted into the groove on the inner peripheral surface, and a second disc regulating body fixed to face the first disc regulating body. And the configuration of the disc restricting means is simplified.

According to a fifth aspect of the present invention, there is provided a tray opening means for inserting a mountain portion of a cam gear rotatably driven by a driving means between trays to open a leg between the trays, and a groove on an outer peripheral surface. A gear formed and rotatably driven by the driving means, a cylindrical first disc regulating body having a pin inserted into the groove on the inner peripheral surface, and a first disc regulating body opposed to the first disc regulating body. The fixed second disc regulating body has a disc regulating means, and the tray opening means and the disc regulating means can be operated in conjunction with each other by the same driving means. Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 12. The disk changer device of the first embodiment described below is an example of a vehicle-mounted disk changer device installed and used in an automobile.

(Embodiment 1) In FIG. 1 to FIG.
Is a box-shaped housing, and a disk insertion slot is formed in the front plate 1A of the housing 1. Reference numeral 2 denotes a disk loading roller disposed in the housing 1 near the disk insertion opening. The roller 2 is rotated by a roller driving mechanism (not shown) to insert and discharge the disk 3. Reference numeral 4 denotes a semi-circular tray for holding the disk 3, and a plurality of trays 4 are stacked and arranged on the corner of the rear plate 1B and the right side plate 1C in the housing 1. Metal plates 5 are disposed on the uppermost surface and the lowermost surface of the plurality of trays 4, respectively, and holes are formed in the tray 4 and the metal plate 5 at three locations. Since three tray guide shafts whose both ends are fixed to the top plate and the bottom plate of the housing 1 are inserted into the holes of the tray 4 and the metal plate 5, the plurality of trays 4 and the metal plate 5 And can move up and down by being guided by a tray guide shaft. Reference numeral 6 denotes a lever rotatably supported in the housing 1.
Is held. The lever 6 is urged clockwise (FIG. 1) by a spring (not shown). The disk 3 inserted from the disk insertion opening formed in the center of the front plate 1A of the housing 1 is transferred by the rollers 2 toward the rear plate 1B into the housing 1. During this transfer, the roller 7 at the tip of the lever 6 comes into contact with the outer peripheral surface of the disk 3, so that the disk 3 is turned in the direction of the tray 4 and stored in the tray 4.

FIG. 3 to FIG. 5 show a tray section according to the first embodiment. 3 to 5, reference numeral 8 denotes a coil spring. The lower end of the coil spring 8 is engaged with the metal plate 5 disposed at the lowermost position, and the upper end of the coil spring 8 is engaged with the metal plate 5 disposed at the uppermost position. Has been stopped. This coil spring 8
The plurality of trays 4 are urged and stacked so as to be sandwiched by the metal plates 5 as shown in FIG. Reference numeral 9 denotes a first cam gear rotatably supported in the housing 1,
As shown in FIG. 8, the first cam gear 9 has a cam groove 9A into which a protruding piece formed at the center of the tray 4 and the metal plate 5 is inserted. The width of a part 9B of the peak of the first cam gear 9 is formed larger than the width of the other peak 9C. Reference numeral 10 denotes a protruding piece formed integrally with the crest 9B.
Similarly, the second and third cam gears 11 and 12 are rotatably supported in the housing 1. The second and third cam gears 1
Each of the first and second cam gears 1 and 12 has a cam groove into which a protrusion formed at the end of the tray 4 and the metal plate 5 is inserted. It is formed thicker than the width of the peak. The second and third cam gears 11,
The twelve cam gears 9, 11, 12 rotate synchronously by the rotational driving force of a motor (not shown). Further, near the second and third cam gears 11 and 12, the second and third cam gears 11 and 12 are provided.
Fourth and fifth mauvia 13 and 14 having ridges having a width larger than the width of the ridges of the third cam gears 11 and 12 are rotatably supported. The cam gear 9,
When the first and second cam gears 13 and 14 are rotated by another driving mechanism, the distance between the first and second trays 4 is increased.
As shown in FIG.

In FIG. 1, reference numeral 15 denotes a shaft 1
6, a substrate rotatably supported by the substrate 1.
An optical head chassis 18 is supported on 5 via three rubber dampers 17. Reference numeral 19 denotes an optical pickup which is moved to the optical head chassis 18 in the direction of arrow A by a feed screw. The optical pickup 19 has a light emitting element,
An optical system such as a light receiving element is incorporated. Reference numeral 20 denotes an objective lens constituting an optical system. The laser beam emitted from the objective lens 20 is applied to the disk 3,
Is reflected by the light-receiving element via the objective lens 20. The light receiving element converts the received laser light into an electric signal and outputs the electric signal. The information recorded on the disk 3 is reproduced from the output signal.

6 and 7, reference numeral 21 denotes a turntable rotatably held by the optical head chassis 18. The turntable 21 is directly connected to a rotating shaft of a motor 22 mounted on the lower surface of the optical head chassis 18. Have been. Reference numeral 23 denotes a plurality of claws held at the center of the turntable 21 so as to be openable and closable. When the disc 3 is not placed on the turntable 21, the claws 23 are in a closed state.
When the disc is placed on the turntable 21, the pawl 23 is driven outward by the pawl driving mechanism to hold the disc 3 on the turntable 21.

In FIG. 1, reference numeral 24 denotes a disk pushing lever slidably held at the tip of a shaft 25. The disk pushing lever 24 is rotated clockwise (FIG. 1) by a driving mechanism (not shown). Then, the disk push lever 2
4 enters between the trays 4, and the disc 3 on the tray 4
And pushes out one disk 3 from the tray 4 toward the center in the housing 1. The disc 3 extruded from the tray 4 is fixed to the turntable 21 and is driven to rotate.

FIG. 9 shows a drive mechanism for driving the fourth and fifth cam gears 13 and 14. In FIG. 9, reference numeral 26 denotes a ring-shaped rotating plate slidably supported by the bottom plate of the housing 1, and a tooth portion 26A with which a gear 27 meshes is formed on the outer periphery of the rotating plate 26. . Reference numeral 28 denotes a motor, and the rotational driving force of the motor 28 is transmitted to a gear 30 via a gear reduction mechanism 29. Since the rotating plate 26 is meshed with the gear 30, when the motor 28 rotates, the rotating plate 2
6 rotates in the direction of arrow A, and the tooth portion 26A
The gear 27 that meshes with. 31 is a gear that meshes with the gear 27, and 32 is a gear that meshes with the gear 31. The gear 32 has a cam groove 32A. 33 is a lever whose one end is rotatably supported by a shaft 34,
The pin 35 formed on the lever 33 is inserted into the cam groove 32A of the gear 32. Reference numeral 36 denotes a ring-shaped rotating plate slidably supported by the bottom plate of the housing 1, and one end of the rotating plate 36 is connected to the lever 33. Three
6A is a tooth formed on one side of the rotating plate 36;
B is a tooth formed on the other side of the rotating plate 36, 37 is a gear meshing with the tooth 36A of the rotating plate 36, and 14A is formed integrally with one end of the fifth cam gear 14. The gear 14A is a toothed portion 36B of the rotating plate 36.
Is to mesh with.

FIG. 10 shows the fifth cam gear 14. A cam 14 </ b> B is formed on the cam gear 14 to open the leg between the trays 4 and open the tray 4 further.

FIG. 11 shows the gear 37 in FIG. A groove 37A is formed on the outer peripheral surface of the gear 37. FIG. 12 shows a cylindrical disk regulating body 38. A pin 38A is formed on the inner peripheral surface of the disc regulating body 38. 38B is a projection for stopping rotation. A gear 37 shown in FIG. 9 is inserted into the disc regulating body 38, and a pin 38A on the inner surface of the disc regulating body 38 is
7 is inserted into the groove 37A. Since the protruding piece 38B of the disc regulating body 38 is inserted into the hole of the fixing plate, when the gear 37 rotates, the disc regulating body 38 moves up and down in FIG. 12, reference numeral 39 denotes an upper surface plate 40 of the housing 1.
The distance between the disk restrictors 38 and 39 changes when the disk restrictor 38 moves up and down. The selected disc 3 passes between the disc regulating bodies 38 and 39. When the selected disc 3 is transported in the direction of the turntable 21, the distance between the disc regulating bodies 38 and 39 becomes narrow. The other discs placed on the tray 4 are prevented from jumping in the direction of the turntable by the disc regulating bodies 38 and 39. The selected disc is turntable 2
When the disc is held at 1 and the reproduction of the disc is performed, the gap between the disc regulating bodies 38 and 39 is widened, and the disc 3 rotated by the turntable 21 is moved between the disc regulating bodies 38 and 39 with the widened gap. It rotates.

In FIG. 9, when the motor 28 rotates,
The rotating plate 26 rotates, and the gears 27, 31, and 32 are driven to rotate. Therefore, the pin 35 inserted into the groove 32 </ b> A of the gear 32 is driven, and the lever 33 rotates about the shaft 34. When the lever 33 rotates, the rotation plate 36 connected to the lever 33 rotates, and the tooth portion 36A of the rotation plate 36
12 rotates, the disc regulating body 38 in FIG. 12 moves up and down, the distance between the disc regulating bodies 38 and 39 changes, and the cam gear 1
4 rotates and the legs between the trays 4 are greatly opened.
A tooth portion is also formed on the other end side of the rotating plate 36, and the fourth cam gear 13 meshes with the tooth portion.

Next, the operation of the above embodiment will be described.
When a predetermined one disk 3 of the plurality of trays 4 is designated, the first, second, and third cam gears 9, 11, and 12 rotate, and the designated disk 3 is pushed by the disk pushing lever 2
4, the tray 4 is moved upward or downward to a position where it can be pushed out. When the designated disc 3 is moved to a predetermined position, the disc pushing lever 24 rotates clockwise (FIG. 1), and the designated disc 3 is pushed. When the disc 3 is pushed out of the tray 4, the rotating plate 26 rotates, so that the gear 37 rotates.
The pin 38A of the disc regulating body 38 which engages with the groove 37A on the outer periphery of the disc 7 is driven to move the disc regulating body 38 shown in FIG. 12 upward, so that the distance between the disc regulating bodies 38 and 39 is reduced, and The movement of the other held disc 3 toward the center of the housing 1 is regulated by the disc regulating bodies 38 and 39. In addition, the fourth and fifth cam gears 13 and 14 rotate with the rotation of the rotation plate 26 shown in FIG. 9, and both ends of the tray 4 on which the specified disk 3 is mounted are fourth and fourth. It is moved downward by the fifth cam gears 13 and 14, and the legs between the trays are greatly opened. Here, the substrate 15 holding the optical head chassis 18 is rotated, and the turntable 21 supported on the tip of the optical head chassis 18 is inserted between the widely opened disks as shown in FIG. The disc 3 is placed on the turntable 21, the claws 23 provided on the turntable 21 are opened outward, and the disc 3 is fixed to the turntable 21. When the designated disk 3 is fixed to the turntable 21, the motor 2
2 rotates, and the turntable 21 rotates. Information recorded on the rotationally driven disk 3 is read by an optical pickup 19 provided on an optical head chassis 18.

As described above, in the first embodiment, the disc regulating body 38,
Since the adjustment of the interval between 39 and the opening operation of the tray are performed in conjunction with each other, the operation of transporting the selected disk in the direction of the turntable and the operation of placing the selected disk on the turntable can be reliably performed.

[0021]

According to the first aspect of the present invention, the transfer operation of the selected disk to the turntable and the disk reproduction operation of mounting the disk on the turntable and rotating the disk are ensured. Things. According to the second aspect of the present invention, the leg opening operation by the first tray opening mechanism when the selected disk is taken out, and the leg opening operation by the second tray opening mechanism when the disk is played. Can be optimally performed. According to the third aspect of the present invention, the configuration of the tray opening means is simplified. According to the invention described in claim 4 of the present invention,
This simplifies the configuration of the disc regulating means. According to the fifth aspect of the present invention, the tray driving means and the disc regulating means can be operated in conjunction with each other by the same driving means.

[Brief description of the drawings]

FIG. 1 is a top view of a disc changer device according to a first embodiment of the present invention.

FIG. 2 is a top view at the time of a reproducing operation according to the first embodiment;

FIG. 3 is a side view of the tray mechanism according to the first embodiment.

FIG. 4 is a side view of the tray mechanism during reproduction according to the first embodiment;

FIG. 5 is a side view of the tray mechanism during reproduction according to the first embodiment;

FIG. 6 is a top view of the optical head chassis according to the first embodiment.

FIG. 7 is a side view of the optical head chassis according to the first embodiment;

FIG. 8 is a side view of the cam gear according to the first embodiment.

FIG. 9 is a top view of the tray opening mechanism according to the first embodiment;

FIG. 10 is a side view of a cam gear of the tray opening mechanism according to the first embodiment.

FIG. 11 is a side view of the gear according to the first embodiment.

FIG. 12 is a side view of the disc regulating mechanism according to the first embodiment;

FIG. 13 is a top view showing an outline of a conventional disc changer device.

[Explanation of symbols]

 3 Disc 4 Tray 9 Cam Gear 11 Cam Gear 12 Cam Gear 13 Cam Gear 14 Cam Gear 15 Substrate 16 Shaft 17 Damper 18 Optical Head Chassis 19 Optical Pickup 21 Turntable 22 Motor 24 Disk Pushout Lever 26 Rotating Plate 36 Rotating Plate 37 Gear 38 Disk Control Body 39 Disc control body

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kenji Urushihara 2-45-1, Hikosancho, Kanazawa-shi, Ishikawa Pref. Inside Matsushita Communication Kanazawa Research Institute Co., Ltd. (72) Inventor Makoto Doi 2-Hikosancho, Kanazawa-shi, Ishikawa No. 1-45 F-term (reference) in Matsushita Communication Kanazawa Laboratory 5D072 AB23 BG05 BH05 BH17 EB01 EB14

Claims (5)

[Claims] 1. A tray holding means for stacking and holding a plurality of trays in a housing, a tray opening means driven by a driving means to open a leg between predetermined trays, and a leg opening means by said first tray opening means. Disc pushing means for pushing out a disc placed on the predetermined tray, and disc regulating means having a gap through which the disc ejected by the disc pushing means passes and regulating the movement of another disc on the tray. A disc changer device having a disc passing gap of the disc regulating means, which changes in conjunction with the operation of the tray opening means. 2. A first tray opening mechanism for opening legs between predetermined trays, and a second tray opening mechanism for further opening legs between trays opened by the first tray opening mechanism. 2. The disc changer device according to claim 1, wherein said disc changer device comprises tray opening means. 3. The disc changer device according to claim 1, further comprising tray opening means for inserting a mountain portion of the cam gear rotationally driven by the driving means between the trays to open a leg between the trays. 4. A gear having a groove formed on an outer peripheral surface thereof and rotationally driven by a drive means, a first cylindrical disk regulating body having a pin inserted into the groove on an inner peripheral surface; 2. The disc changer device according to claim 1, wherein the disc regulating means is constituted by a second disc regulating body fixed opposite to the first disc regulating body. 5. A tray opening means for inserting a mountain portion of a cam gear rotationally driven by a driving means between trays to open a leg between the trays, and a gear formed with a groove on an outer peripheral surface and rotationally driven by the driving means. A first disc regulating body having a pin formed on the inner peripheral surface and inserted into the groove, and a second disc regulating body fixed to face the first disc regulating body. 2. The disc changer device according to claim 1, further comprising a regulating means.