JP2000040288A - Disc changer device - Google Patents

Abstract

(57) Abstract: The present invention relates to a disc changer device for selecting and playing back a plurality of discs, and more particularly to a disc changer device for performing overlap playback, in which disc transfer operation and disc playback operation can be reliably performed. A disk changer device that can be provided with a simple configuration. According to the present invention, by rotating levers (32, 42) by rotation of a rotation plate (29), a cam plate (37) of a disk guide mechanism is slid in a horizontal direction, so that a support substrate (34) is moved vertically. The first disk holding piece 35 and the second disk holding piece 36 which are movably held are driven to transfer the disk to the turntable, and after the transfer, the first disk holding piece 35 and the second disk The disc is reproduced by separating the holding pieces 36 from each other.

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. 16 shows a main part of a conventional disk changer device. In FIG. 16, reference numeral 50 denotes a box-shaped housing, and a disk insertion slot is formed in a front plate 50A of the housing 50. Reference numeral 51 denotes a roller disposed in the vicinity of the disc insertion slot in the casing 50. The disc 52 inserted from the disc insertion slot is transferred into the casing 50 by the roller 51 driven by the motor, and is transferred to the casing 50.
0 is placed on the tray. One disk 52 of the disks placed on the plurality of trays is pushed out to the center of the housing 50 by the disk take-out mechanism and fixed to the turntable 53. The turntable 53 is rotatably supported on a bottom plate of the housing 50 by a shaft 54.
5 is rotatably held at the tip. Rotating plate 5
A motor is attached to 5 and the turntable 53 is rotated by the driving force of the motor. The rotary plate 55 is provided with an optical pickup 56, and information recorded on the rotationally driven disk 52 is stored in the optical pickup 56.
Is read in.

[0003]

SUMMARY OF THE INVENTION The present invention provides a disk changer which can be made smaller in size than the above-mentioned conventional overlap-reproducing disk changer device, and which can reliably transfer a disk to a turntable and reproduce a disk. It is an object of the present invention to provide a device with a simple configuration.

[0004]

According to the present invention, in order to solve the above-mentioned conventional problems, one selected disk is transferred to a turntable while being held by first and second disk holding pieces. After the disk is transferred to the turntable, the first and second disk holding pieces are separated from each other to perform disk reproduction, so that the disk transfer operation and the disk reproduction operation can be reliably performed.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a disk guide having first and second disk holding pieces approaching and moving apart from each other, and driving the first and second disk guides. Drive means for moving the first and second disk holding pieces toward and away from each other, holding the disk with the first and second disk holding pieces approaching each other, transferring the disk to a turntable, and transferring the disk. Thereafter, the first and second disk holding pieces are separated from each other to perform disk reproduction, and the first and second disk holding pieces are moved closer to each other to hold the disk and turn the disk to the turntable. Since the disc is transported and the disc holding pieces are separated from each other to reproduce the disc, the disc can be transported to the turntable and the disc can be reliably reproduced after the transport.

According to a second aspect of the present invention, a first and a second disk holding piece slidably supported in a vertical direction by a support substrate, and a laterally slidably supported by the support substrate. The disc guide means is constituted by a cam plate formed with a cam groove into which the pins of the first and second disc holding pieces are supported and inserted, and the disc is transported with a simple structure. In addition, the disc can be reliably reproduced after the transfer. Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. 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.

FIGS. 3 to 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.

In FIG. 6 and FIG. 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, and 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 disk guide mechanism for holding a disk when transferring a disk extruded from a tray to a turntable. In FIG. 9, reference numeral 26 denotes a motor fixed to the housing 1, and the rotational driving force of the motor 26 is transmitted to a gear 28 via a gear reduction mechanism 27. Reference numeral 29 denotes a ring-shaped rotating plate slidably supported by the bottom plate of the housing 1.
9A are formed. Reference numeral 30 denotes a gear rotatably supported by the shaft 31 on the bottom plate of the housing 1 and meshing with the teeth 29A of the rotating plate 29.
0A is formed. Reference numeral 32 denotes a lever rotatably supported by a shaft 33, and a pin 32 </ b> A that engages with the cam groove 30 </ b> A of the gear 30 is implanted in the lever 32. 32B is a pin implanted at the tip of the lever 32, 3
2C is an arc groove formed in the lever 32, and the shaft 31 is inserted into the arc groove 32C. Reference numeral 34 denotes a support substrate fixed to the upper surface plate of the housing 1, and the support substrate 34 has a vertical direction, as shown in FIGS.
One long hole 34A, 34B and one long hole 34C in the lateral direction are formed. 35 is a long hole 34A of the support substrate 34
The disk holding piece is slidably supported up and down, and two pins 35A implanted in the disk holding piece 35.
35B is inserted into the elongated hole 34A. Numeral 36 is a disc holding piece slidably supported in the elongated hole 34B of the support substrate 34, and two pins 36A and 36B implanted in the disc holding piece 36 are inserted into the elongated hole 34B. I have. Reference numeral 37 denotes a cam plate which is slidably supported in the lateral direction on the support substrate 34. The cam plate 37 has cam grooves 37A and 37B. The disk holding pieces 35 and 36 are vertically slidably supported on one surface of the support substrate 34, while the cam plate 37 is horizontally slidably supported on the other surface of the support substrate 34. Is what is being done. A pin 35A implanted in the disc holding piece 35 is inserted into the cam groove 37A, and a pin 36B implanted in the disc holding piece 36 is inserted into the cam groove 37B. Reference numeral 38 denotes a pin implanted in the cam plate 37. The pin 38 is inserted into the elongated hole 34C of the support substrate 34, and the cam plate 37 is guided by the elongated hole 34C and slides horizontally with respect to the support substrate 34. . Reference numeral 39 denotes a bent piece integrally formed at a lower portion of the cam plate 37, and the bent piece 39 has a long groove 39A. A pin 32B implanted in the lever 32 is inserted into the long groove 39A of the bent piece 39. When the lever 32 rotates, the cam plate 37 slides laterally on the support substrate 34 by the pin 32B of the lever 32. When the cam plate 37 slides in the lateral direction, the pins 35A and 36B are driven by the cam grooves 37A and 37B of the cam plate 37, so that the disc holding pieces 35 and 36 supported by the support substrate 34 so as to be vertically slidable. Is one that slides up and down. 40
Is a gear rotatably supported by the shaft 41 on the bottom plate of the housing 1 and meshing with the teeth 29A of the rotating plate 29. A cam groove 40A is formed on the upper surface of the gear 40. 42
Is a lever rotatably supported by a shaft 43, and a pin 42A for engaging with the cam groove 40A of the gear 40 is implanted in the lever 42. Reference numeral 42B denotes a pin implanted at the tip of the lever 42. The pin 42B is inserted into a long hole of the bent piece of the cam plate of the disc guide mechanism 44. This disc guide mechanism has the same structure as that of the first disc guide mechanism, and the first and second disc guide mechanisms are formed in the same manner by rotating the gears 30 and 40 with the rotation of the rotating plate 29. It works.

FIGS. 10 and 13 show a state where the disk 3 is pushed out of the tray 4. In this state, the disc holding pieces 35 of the first and second disc guide mechanisms,
36 is at the position moved upward, and the disc holding piece 3
The space between the disk holding pieces 3 and 5 is narrow.
The disc 3 extruded from the tray 4 is inserted between the discs 5 and 36, and the disc 3 is held between the disc holding pieces 35 and 36. FIGS. 11 and 14 show a state where the disk 3 extruded from the tray 4 is placed on the turntable 21 and clamped. When the cam plate 37 moves in the horizontal direction in the state shown in FIGS. 10 and 13, the disk holding pieces 35 and 36 of the first and second disk guide mechanisms descend while holding the disk 3. When the cam plate 37 further moves in the horizontal direction in the state shown in FIGS. 11 and 14, the disk holding pieces 35 of the first and second disk guide mechanisms descend as shown in FIGS. The piece 36 rises, and the space between the disc holding pieces 35 and 36 becomes wider. In this state, the disc 3 is driven to rotate by the turntable 21 to perform the reproducing operation of the disc.

In FIG. 9, when the motor 26 rotates, the rotational driving force of the motor 26 is transmitted to the gear 28 via the speed reduction mechanism 27. When the gear 28 rotates, the rotating plate 29 meshing with the gear 28 rotates, and the rotating plate 29
The gears 30 and 40 meshing with the toothed portion 29A rotate. With the rotation of the gears 30 and 40, the cam grooves 3 of the gears 30 and 40
0A and 40A drive the pins 32A and 42A of the levers 32 and 42 with the shafts 33 and 43 as fulcrums.
2 and 42 rotate, the cam plates 37 of the first and second disk guide mechanisms slide horizontally on the support substrate 34, and the sliding operation causes the cam plate 37 to move from the tray 4 as shown in FIG. The extruded disk 3 is held by the disk holding pieces 35 and 36 of the first and second disk guide mechanisms, and the disk holding pieces 35 and 36 are held while holding the disk 3 as shown in FIG.
After the disc 3 is placed on the turntable 21 and clamped, the disc is played back by opening the disc holding pieces 35 and 36 of the first and second disc guide mechanisms as shown in FIG. It is. After playing the disc, the disc 3 is stored in the tray through the states shown in FIGS. 15, 14, and 13.

As described above, in the first embodiment, the disk holding piece 35,
When the disk 3 is transferred to the turntable 21 by the disk 36 and the disk 3 is clamped to the turntable 21, the disk holding pieces 35 and 36 are opened to play the disk, and the disk 3 is transferred to the turntable 21. Thus, the disk reproducing operation can be reliably performed.

[0016]

According to the first aspect of the present invention, the disk is transferred to the turntable while holding the disk by bringing the first and second disk holding pieces close to each other,
Since the disc is reproduced by moving the disc holding piece away from the disc after the transfer, the disc can be transferred to the turntable and the disc can be reliably reproduced after the transfer. According to the second aspect of the present invention, the transfer of the disk and the reproduction of the disk after the transfer can be reliably performed with a simple configuration.

[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 of the 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 a main part of the tray guide mechanism according to the first embodiment;

FIG. 10 is a front view of the tray holding mechanism according to the first embodiment;

FIG. 11 is a front view of the tray holding mechanism according to the first embodiment.

FIG. 12 is a front view of the tray holding mechanism according to the first embodiment;

FIG. 13 is a side view of the disk holding piece of the first embodiment.

FIG. 14 is a side view of the disk holding piece of the first embodiment.

FIG. 15 is a side view of the disk holding piece according to the first embodiment;

FIG. 16 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 Motor 29 Rotating Plate 30 Gear 32 Lever 32B Pin 34 Support Substrate 35 Disk holding piece 36 Disk holding piece 37 Cam plate 40 Gear 42 Lever 42B Pin

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroto Nishida 2-1-145 Hikosancho, Kanazawa-shi, Ishikawa Pref. Inside Matsushita Communication Kanazawa Research Laboratories Co., Ltd. No. 1-45 F-term in Matsushita Communication Kanazawa Research Laboratory Co., Ltd. 5D072 AB22 AB23 BG05 BH05 BH17 EB14

Claims (2)

[Claims] 1. A disk guide means having first and second disk holding pieces approaching and separating from each other, and driving the first and second disk guide means to move the first and second disk holding pieces toward and away from each other. Driving means for causing the first,
A disk changer device wherein a disk is held while the second disk holding piece is approached and transferred to a turntable, and after the transfer, the first and second disk holding pieces are separated to reproduce a disk. . 2. The first and second disk holding pieces slidably supported in a vertical direction on a support substrate, and the first and second disks supported slidably in a horizontal direction on the support substrate. 2. The disc changer device according to claim 1, wherein the disc guide means comprises a cam plate having a cam groove into which the pin of the holding piece is inserted.