JP2548453B2 - Disc loading device and disc loading method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading device and a disc loading method used for a compact disc player or the like.

2. Description of the Related Art FIGS. 8 and 9 show a conventional disc loading mechanism. In FIG. 8 and FIG. 9, 50 and 51 are rubber rollers arranged in parallel, and by rotating the rubber rollers 50 and 51 by the rotational driving force of a motor,
52 was transferred in the direction of the arrow.

However, in the above-mentioned conventional example, since the rubber rollers 50 and 51 are brought into contact with the surface of the disk 52 for loading,
There was a problem of scratching the surface of the disc during loading.

The present invention is to solve the above conventional problems,
The present invention provides a disc loading device and a disc loading method that do not scratch the surface of a disc.

Means for Solving the Problems In order to achieve the above object, the first invention of the present invention is directed to a roller rotation drive mechanism for rotating a pair of rollers, and the above-mentioned configuration with respect to a center line of a disc transfer passage. It is equipped with a roller moving mechanism for moving the rollers toward and away from each other, and an eject mechanism for coupling with the roller rotation driving mechanism when ejecting the disc. The outer peripheral surface of the disc is brought into contact with the pair of rollers to rotate the roller. The disc is ejected by pushing the outer peripheral surface of the disc by the ejecting mechanism which is operated by being coupled to the roller rotation drive mechanism while the disc is moved by a driving force.

According to a second aspect of the present invention, a roller rotation driving mechanism for rotating a roller, a roller moving mechanism for moving the roller toward and away from a center line of a disc transfer passage, and a guide for contacting an outer peripheral surface of the disc. A disc guide mechanism having a surface for guiding the disc, and an eject mechanism for coupling to the roller rotation drive mechanism when ejecting the disc are provided. The disc is ejected by pushing the outer peripheral surface of the disc by the ejecting mechanism which is operated by being coupled to the roller rotational driving mechanism while the outer peripheral surface is brought into contact with the roller rotational driving force. To do.

A third aspect of the present invention is directed to a roller rotation driving mechanism for rotating a pair of rollers in opposite directions, a roller moving mechanism for moving the pair of rollers toward and away from each other, and a pair of ejecting arms for moving toward and away from each other. The eject arm has an eject mechanism for pushing the outer peripheral surface of the disc with the tip of the eject arm, and the roller is brought into contact with the outer peripheral surface of the disc to transfer the disc by the rotational driving force of the roller and the tip of the eject arm. Then, the outer peripheral surface of the disc is pushed to eject the disc.

According to a fourth aspect of the present invention, a rotating roller is brought into contact with the outer peripheral surface of the disk to transfer the disk in a predetermined direction by the rotational driving force of the roller, and at the time of ejecting the disk, a rotational driving mechanism for the roller. It is characterized in that the outer peripheral surface of the disk is pushed by an ejecting mechanism coupled to the disk to transfer the disk in the direction opposite to the predetermined direction.

Action The present invention has the above-described structure, and the roller moving mechanism causes the roller to approach the supplied disk, and the roller comes into contact with the outer peripheral surface of the disk. Since the roller is rotating, the disk is transported in a predetermined direction by the rotational driving force of the roller. Further, when the reproduction of the disc is completed, the outer peripheral surface of the disc is pushed by the eject mechanism coupled to the roller rotation drive mechanism, and the disc is ejected.

Embodiment FIG. 1 shows a disk loading device in an embodiment of the present invention. In FIG. 1, reference numeral 1 is a substrate, and arcuate guide holes 2 and 3 are formed in the substrate 1. 4 is a reversible motor mounted on the back surface of the substrate 1, 5 is a worm gear fixed to the rotating shaft 4a of the motor 4, 6 is a helical gear which is rotatably supported by the substrate 1 and meshes with the worm gear 5. , 7 and 8 are gears rotatably supported on the substrate 1, and the gears 7 and 8 are meshed with the small gear portion 6a of the helical gear 6. Reference numeral 9 denotes a gear rotatably supported on the substrate 1, and the gear 9 meshes with the gear 8. Gears 10 and 11 are rotatably supported on the substrate 1. The gears 10 and 11 mesh with the gears 7 and 9, respectively.
Arms 16 and 17 rotatably supported on the substrate 1 by shafts 14 and 15 are clutch gears that rotate about the shafts 14 and 15. The clutch gears 16 and 17 are the gears. It meshes with the small gear portions 10a, 11a of 10, 11. 18 and 19 are clutch gears
Springs for pressing 16, 17 against the arms 12, 13 (see FIG. 2), 20, 21, 22 are gears rotatably supported by the arm 12, and 23, 24, 25 are rotatably supported by the arm 13. Gears,
Gears 26 and 27 are rotatably supported by the arms 12 and 13, and rubber rollers 28 and 29 are attached to one ends of the gears 26 and 27, respectively. These rubber rollers 28, 29 are guide holes for the substrate 1.
It penetrates through 2 and 3 and projects to the upper surface of the substrate 1. 40 and 41 are gears that are rotatably supported on the substrate 1.
1 indicates the gear 2 when the arms 12 and 13 rotate and are separated from each other most.
It meshes with 1,24. 42 and 43 are clutch gears rotatably supported by shafts 44 and 45, and 46 and 47 are ejecting arms that rotate about the shafts 44 and 45.
Pins 48 and 49 are provided at the tip of the. The clutch gears 42, 43 are pressed against the eject arms 46, 47 by an elastic body such as a spring.

FIG. 2 shows the clutch gear 16 portion. In FIG. 2, 12 is an arm rotatably supported on the substrate 1 by a shaft 14, 36 is a resin plate attached to the arm 12,
A cylindrical shaft 37 is integrally formed at the center of the resin plate 36. 38 is a ring-shaped felt, 16 is a clutch gear rotatably supported by the cylindrical shaft 37, 18 is a spring, 39 is a ring-shaped retaining plate fixed to the end of the cylindrical shaft 37, The spring 18 is interposed between the retaining plate 39 and the clutch gear 16. The clutch gear 16 is pressed by the spring 18, and the clutch gear 16 and the resin plate
Felt 38 is sandwiched between 36 and.

In FIG. 1, the rotational driving force of the motor 4 is transferred to a gear 26 provided with a rubber roller 28 via a worm gear 5 → helical gear 6 → gear 7 → gear 10 → gear 16 → gear 20 → gear 21 → gear 22. The rubber roller 28 is transmitted to rotate the rubber roller 28 clockwise or counterclockwise, and the rotational driving force of the motor 4 is changed from the worm gear 5 to the helical gear 6 to the gear 7 to the gear 10.
→ Transmitted to the clutch gear 42 through the gear 16 → the gear 20 → the gear 21 → the gear 40. The rotational driving force of the motor 4 is worm gear 5 → helical gear 6 → gear 8 → gear 9 → gear 11
→ gear 17 → gear 23 → gear 24 → gear 25 through rubber roller
The rubber roller 29 is transmitted to the gear 27 provided with 29 to rotate the rubber roller 29 counterclockwise or clockwise, and the rotational driving force of the motor 4 is worm gear 5 → helical gear 6 → gear 8 → gear 9 → gear 11 → Gear 17 → Gear 23 → Gear 24 → Gear 41
Is transmitted to the clutch gear 43 via. Reference numeral 30 denotes an optical sensor that detects the insertion of a disk, and the output of this optical sensor 30 is sent to the control circuit 31. When the optical sensor 30 detects the insertion of the disc, the control circuit 31 rotates the motor 4.

Next, the operation of the above embodiment will be described. FIG. 3 shows a state where a large-diameter disk (12 cm CD) 32 is inserted through the disk insertion hole. When the insertion of the disk 32 is detected by the optical sensor 30, the control circuit 31 causes the motor 4 to start rotating in the first rotation direction. The rotational driving force of this motor 4 is
The worm gear 5 → helical gear 6 → gear 7 → gear 10 → gear 16 → gear 20 → gear 21 → gear 22 is transmitted to the gear 26 provided with the rubber roller 28, and the rubber roller 28 is rotated clockwise. The arm 12 rotates about the shaft 14 in the clockwise direction. The rotational driving force of the motor 4 is worm gear 5 → helical gear 6 → gear 8 → gear 9 → gear 11
→ gear 17 → gear 23 → gear 24 → gear 25 through rubber roller
The rubber roller 29 is transmitted to the gear 27 provided with 29 to rotate the rubber roller 29 counterclockwise, and the arm 13 rotates counterclockwise about the shaft 15. In this way, the motor 4 is the first
When the arms 12 and 13 rotate in the direction of rotation, the arms 12 and 13 rotate in directions toward each other with respect to the center line of the transfer path of the disk 32, and the rubber rollers 28 and 29 rotate in opposite directions. Rubber roller 2 which is rotated by the rotation of arms 12 and 13.
8, 29 contact the outer peripheral surface of the inserted disc 32, and move the disc 32 in the arrow (Y) direction. FIG. 4 shows a state immediately before the end of the loading in the arrow (Y) direction. When the disk 32 is transferred to a predetermined position by the loading mechanism, the transmission to the motor 4 is cut off, the rotation of the arms 12 and 13 is stopped, and the rotation of the rubber rollers 28 and 29 is also stopped. When the disc 32 is transferred to a predetermined position, the disc 32 is clamped on the turntable by the clamp mechanism, the disc 32 is rotationally driven, and the reproducing operation is started. When the eject switch is operated in the disc reproducing state shown in FIG. 4, the motor 4 starts rotating in the reverse direction. Therefore, the arms 12,1
The 3 rotates about axes 14 and 15 in directions away from each other. When the arms 12 and 13 reach the ends of the guide holes 2 and 3, the gears 21 and 24 mesh with the gears 40 and 41. Therefore, the rotational driving force of the motor 4 is transmitted to the gears 40 and 41 via the gears 21 and 24,
Further transmitted to the clutch gears 42 and 43, the clutch gear 42
Rotates counterclockwise and the clutch gear 43 rotates clockwise. With the rotation of the clutch gears 42, 43, the ejecting arm 46 rotates counterclockwise about the shaft 44, and the ejecting arm 47 rotates clockwise about the shaft 45. Therefore, the eject arm 46,47
Pins 48 and 49 provided at the tip of the disk push the disk 32 and eject the disk 32 toward the disk insertion opening.

5 and 6 show the case where a small-diameter disc (8 cm CD) 33 is inserted. When the small-diameter disk 33 is inserted into the disk insertion opening, the optical sensor 30 detects the disk 33, and the control circuit 31 causes the motor 4 to start rotating in the first rotation direction. By the same operation as the transfer operation, the small-diameter disk 33 is transferred in the arrow (Y) direction. When the large-diameter disc 32 and the small-diameter disc 33 are rotationally driven by a common turntable, a discriminating means for discriminating the disc diameter is provided, and the disc arrow discriminated by the disc diameter discriminating result by the discriminating means. The stop position for stopping the transfer in the (Y) direction may be changed. The operation of ejecting the small-diameter disk 33 is the same as the eject operation of the large-diameter disk described above.

Incidentally, in the above embodiment, even if the large-diameter disc or the small-diameter disc is not inserted in the center of the disc insertion opening, and is inserted near the left or right side of the disc insertion opening,
The disk can be moved in the direction of the center line by rotating the arm and rotating the rubber roller.

As described above, in this embodiment, the outer peripheral surface of the disk is driven to load the disk without contacting the surfaces of the disks 32 and 33 with the roller, and the pin 4
Since the outer surface of the disk is ejected by pressing 8,49, it is possible to prevent the surface of the disk from being scratched.

In the above embodiment, the two sets of mechanisms are operated symmetrically with respect to the center line, but as shown in FIG. 7, one set of mechanisms (gears 7, 10, 16, 20, 21, 21, 22, Arm 12, rubber roller 28,
It is also possible to remove the gear 40, the clutch gear 42, the ejecting arm 46, etc.) and use only one mechanism to load and eject the disc, in which case the disc will be guided along the guide surface 35. Be transferred.

Effect of the Invention The present invention is configured as described above, and according to the present invention,
Since loading and ejecting are performed using only the outer peripheral surface of the disc, there is an advantage that the surface of the disc is not scratched during the disc loading and ejecting operations. Further, according to the present invention, since the ejecting operation is performed by utilizing a part of the loading mechanism, the ejecting mechanism can be particularly simplified.

[Brief description of drawings]

FIG. 1 is a top view of a disk loading device according to an embodiment of the present invention, FIG. 2 is a side view of a clutch gear portion of the device, and FIGS. 3 to 6 are operation explanatory views of the device, and FIG. Is a top view of another embodiment of the present invention, FIG. 8 is a top view of a conventional disk loading device, and FIG. 9 is a front view of the same device. 1 ... Board, 2, 3 ... Guide hole, 4 ... Motor, 5 ...
Worm gear, 6 ... Helical gear, 7,8,9,10,11 ......
Gears, 12,13 …… Arms, 14,15 …… Shafts, 16,17 …… Clutch gears, 18,19 …… Springs, 20,21,22,23,24,25,2
6,27 …… Gear, 28,29 …… Rubber roller, 30 …… Optical sensor, 31 …… Control circuit, 32,33 …… Disk, 34 …… Gear, 35 …… Guide surface, 36 …… Resin plate, 37 …… Cylinder axis, 38
...... Felt, 39 …… Detachment plate, 40,41 …… Gear, 42,43
...... Clutch gears, 44, 45 …… Shafts, 46, 47 …… Ejecting arms, 48, 49 …… Pins.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kahobashi Anyoshi 4-3-1, Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa Matsushita Communication Industrial Co., Ltd. (72) Inventor Masahiro Watanabe Tsunashima, Kohoku-ku, Yokohama-shi, Kanagawa East 3-chome 3-3-1 Matsushita Communication Industry Co., Ltd. (72) Inventor Rei Nakayama Resident 4-3-1 Tsunashima East, Tsunashima, Kohoku Ward, Yokohama City, Kanagawa Prefecture Matsushita Communication Industry Co., Ltd. (72) Inventor Hiroto Nishida Kanazawa Ishikawa Prefecture Ichihiko Sancho 2-chome 1-45 Matsushita Communication Kanazawa Research Institute Co., Ltd. (56) Reference JP 61-210556 (JP, A) JP 1-189065 (JP, A)

Claims (8)

(57) [Claims] 1. A roller rotation drive mechanism for rotating a pair of rollers, a roller movement mechanism for moving the roller toward and away from the center line of a disc transfer passage, and a roller rotation drive for ejecting the disc. An ejecting mechanism coupled to the mechanism, wherein the outer peripheral surface of the disc is brought into contact with the pair of rollers to transfer the disc by the rotation driving force of the rollers, and the ejection mechanism is coupled to the roller rotation driving mechanism to operate. A disc loading device, characterized in that an eject mechanism pushes an outer peripheral surface of the disc to eject the disc. 2. A roller rotation driving mechanism for rotating a roller, a roller moving mechanism for moving the roller toward and away from a center line of a disk transfer passage, and a guide surface for contacting an outer peripheral surface of the disk. A disc guide mechanism for guiding the disc and an eject mechanism for coupling to the roller rotation drive mechanism when ejecting the disc are provided, and the outer peripheral surface of the disc is brought into contact with the guide surfaces of the roller and the disc guide mechanism. A disc loading device, characterized in that the disc is transferred by the rotational driving force of the roller, and the outer peripheral surface of the disc is pushed by the ejecting mechanism which is coupled to the roller rotational driving mechanism to operate to eject the disc. . 3. The disk loading device according to claim 1, wherein the roller moving mechanism and the eject mechanism are driven by the rotation driving force of the roller rotation driving mechanism that rotates the roller. 4. An arm rotatably supported, a clutch gear supported coaxially with the rotary shaft of the arm, a motor mechanism for rotationally driving the clutch gear, and a rotational driving force for the clutch gear. 3. The disk loading device according to claim 1, wherein a roller rotation drive mechanism and a roller movement mechanism are configured by a rotation drive force transmission mechanism that transmits the torque to the roller supported by the arm. 5. A roller rotation driving mechanism for rotating a pair of rollers in mutually opposite directions, a roller moving mechanism for moving the pair of rollers toward and away from each other, and a pair of ejection arms for moving toward and away from each other. Is equipped with an ejecting mechanism that pushes the outer peripheral surface of the disc at the tip of the disc, and the roller is brought into contact with the outer peripheral surface of the disc to transfer the disc by the rotational driving force of the roller, and at the end of the ejecting arm of the disc. A disc loading device, characterized in that the disc is ejected by pushing the outer peripheral surface. 6. A pair of arms rotatably supported, a pair of clutch gears supported coaxially with a rotating shaft of the arms, a motor mechanism for rotationally driving the pair of clutch gears, 6. The disk loading according to claim 5, wherein a roller rotation drive mechanism and a roller movement mechanism are configured by a pair of rotation drive force transmission mechanisms that transmit the rotation drive force of each clutch gear to each roller supported by each arm. apparatus. 7. A pair of gears that can be meshed with a roller rotation drive mechanism, a pair of rotatably supported ejecting arms, and a pair of gears supported coaxially with the rotating shaft of the ejecting arms. 6. The disk loading device according to claim 5, wherein a pair of clutch gears that mesh with each other constitutes an eject mechanism. 8. An ejecting means for bringing a rotating roller into contact with an outer peripheral surface of the disk to transfer the disk in a predetermined direction by a rotational driving force of the roller, and at the time of ejecting the disk, to be coupled to a rotational driving mechanism of the roller. A disc loading method, characterized in that a mechanism pushes an outer peripheral surface of the disc to transfer the disc in a direction opposite to the predetermined direction.