JP2538125B2 - Disk loading device - Google Patents

Description

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

2. Description of the Related Art In a conventional disc loading device, two rubber rollers are arranged in parallel, the rubber rollers are rotated by a rotational driving force of a motor, and a disc inserted between the rubber rollers is transferred.

However, in the above-mentioned conventional example, since the disc is inserted between the two rubber rollers and the rubber roller is loaded while being in contact with the surface of the disc, the disc surface is scratched during the disc loading. There was a problem.

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

Means for Solving the Problems In order to achieve the above object, the present invention provides one clutch mechanism that is rotated by the rotational driving force of a motor, and a roller rotational driving mechanism that rotates a pair of rollers by the rotational driving force of the motor. And a pair of roller moving mechanisms for moving the pair of rollers toward and away from the center line of the disc transfer passage, wherein the rotational driving force of the motor is moved through the one clutch mechanism. The mechanism is characterized in that the roller is brought into contact with the outer peripheral surface of the disk to transfer the disk by the rotational driving force of the roller.

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 and FIG. 2 show a disk loading device in an embodiment of the present invention. In FIGS. 1 and 2, reference numeral 1 denotes a substrate, and the substrate 1 has arcuate guide holes.
A few are formed. 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 is substrate 1
The gear 7 is rotatably supported by the gear 7, and the gear 7 meshes with the small gear portion 6a of the helical gear 6. Gears 8a and 8b are rotatably supported on the substrate 1, and the gear 8b is pressed against the gear 8a by a biasing force of a spring 9 through a felt 10. Gears 8a, 8b, spring 9, felt
The clutch mechanism is composed of 10. Reference numerals 11a and 11b are gears rotatably supported by the substrate 1, and the gear 11a is the gear 8a.
The gear 11b meshes with the gear 8b. 12 is the axis 13
The arm 14 is rotatably supported by the gear 14a and the gear 14a is rotatably supported by the shaft 13. The gear 14a meshes with the gear 11a. 14b is the same gear as the gear 14a,
The gear 14b is fixed to the arm 12. Gears 15, 16 and 17 are rotatably supported by the arm 12, the gear 15 meshes with the gear 14a and the gear 16, and the gear 16 meshes with the gear 17. Reference numeral 18 denotes a rubber roller rotatably supported by the arm 12, and the rubber roller 18 is integrally formed with a gear 19 meshing with the gear 17. Gears 20a, 20b and 21a, 22b are rotatably supported on the substrate 1, the gear 20a meshes with the gear 8a and the gear 21a, and the gear 20b meshes with the gear 8b and the gear 21b. Reference numeral 22 is an arm rotatably supported on the substrate 1 by a shaft 23, and 24a is a gear rotatably supported by the shaft 23, and the gear 24a meshes with the gear 21a. twenty four
b is a gear fixed to the arm 22, and the gears 24a and 24b constitute a clutch mechanism like the gears 14a and 14b. 25,2
Gears 6 and 27 are rotatably supported by the arm 22, a gear 25 meshes with a gear 24a and a gear 26, and a gear 27 meshes with the gear 26. 28 is a roller rotatably supported by the arm 22, and the roller 28 has a gear that meshes with the gear 27.
29 are integrally formed. Reference numerals 30 and 31 denote gears rotatably supported on the substrate 1, and the gears 30 and 31 can mesh with gears 16 and 26 rotatably supported on the arms 12 and 22, respectively. 32,
33 is an ejecting arm rotatably supported by shafts 34 and 35, 36 and 37 are clutch gears rotatably supported by shafts 34 and 35, and these clutch gears 36 and 37 are elastic bodies such as springs. The clutch mechanism is formed by being pressed by the eject arms 32 and 33. 38 and 39 are eject arm 3
It is a pin provided at the tip of 2,33.

In FIGS. 1 and 2, the rotational driving force of the motor 4 is
The worm gear 5 → the helical gear 6 → the gear 7 → the gear 8a → the gear 11a → the gear 14a → the gear 15 → the gear 16 → the gear 17 is transmitted to the gear 19 provided with the rubber roller 18, and the rubber roller 18
Rotating clockwise or counterclockwise, the rotational driving force of the motor 4 changes the worm gear 5 → the helical gear 6
→ gear 7 → gear 8a → gear 11a → gear 14a → gear 15 → gear 16
→ Transmitted to the clutch gear 36 via the gear 30. Also,
The rotation driving force of the motor 4 is an arm via a worm gear 5 → helical gear 6 → gear 7 → gear 8b → gear 11b → gear 14b.
It is transmitted to 12 to rotate the arm 12 in the clockwise direction or the counterclockwise direction about the axis 13. The rotational driving force of the motor 4 is worm gear 5 → helical gear 6 → gear 7 → gear 8a → gear
20a → gear 21a → gear 24a → gear 25 → gear 26 → gear 26 → gear 27 is transmitted to gear 29 equipped with rubber roller 28, which causes rubber roller 28 to rotate clockwise or counterclockwise and to rotate motor 4. The force is worm gear 5 → helical gear 6 → gear 7 → gear 8a → gear 20a → gear 21a → gear 24
It is transmitted to the clutch gear 37 via a → gear 25 → gear 26 → gear 31. Further, the rotational driving force of the motor 4 is transmitted to the arm 22 via the worm gear 5 → helical gear 6 → gear 7 → gear 8b → gear 20b → gear 21b → gear 24b, and the arm 22 is rotated clockwise about the axis 23 or Rotate counterclockwise. 41
Is an optical sensor that detects the insertion of a disk, and the output of this optical sensor 41 is sent to the control circuit 31. When the optical sensor 41 detects the insertion of the disk, the control circuit 42 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 40 is detected by the optical sensor 41, the control circuit 42 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 → the helical gear 6 → the gear 7 → the gear 8a → the gear 11a → the gear 14a → the gear 15 → the gear 16 → the gear 17 is transmitted to the gear 19 provided with the rubber roller 18, and the rubber roller 18
While rotating the wheel clockwise, the rotational driving force of the motor 4 is: worm gear 5 → helical gear 6 → gear 7 → gear
It is transmitted to the arm 12 via 8b → gear 11b → gear 14b and rotates the arm 12 clockwise. The rotational driving force of the motor 4 is the worm gear 5 → the helical gear 6 → the gear 7
→ Gear 8a → Gear 20a → Gear 21a → Gear 24a → Gear 25 → Gear 2
6 → Transmitted to the gear 29 provided with the rubber roller 28 via the gear 27 to rotate the rubber roller 28 counterclockwise, and the rotational driving force of the motor 4 is changed from the worm gear 5 → the helical gear 6 → the gear 7 → the gear. 8b → gear 20b → gear 21b → gear
It is transmitted to the arm 22 via 24b and rotates the arm 22 counterclockwise about the shaft 23. In this way, the motor 4 is the first
When the arms 12 and 22 rotate in the direction of rotation, the arms 12 and 22 rotate in the directions approaching each other with respect to the center line of the transfer passage of the disk 40, and the rubber rollers 18 and 28 rotate in opposite directions. Rubber roller 1 that rotates when the arms 12 and 22 rotate
8, 28 contacts the outer peripheral surface of the inserted disc 40, and moves the disc 40 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 40 is transferred to a predetermined position by the loading mechanism, the power supply to the motor 4 is cut off, the rotation of the arms 12 and 22 is stopped, and the rotation of the rubber rollers 18 and 28 is also stopped. When the disc 40 is transferred to a predetermined position, the disc 40 is clamped on the turntable by the clamp mechanism, the disc 40 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 and 22 rotate about the shafts 13 and 23 in directions away from each other. Arms 12 and 22 are guide holes
Upon reaching the ends of 2,3, the gears 16,26 mesh with the gears 30,31. Therefore, the rotational driving force of the motor 4 is transmitted to the gears 30, 31 via the gears 16, 26, and the clutch gears 36, 3
Transmitted to 7, the clutch gear 36 rotates counterclockwise,
Clutch gear 37 rotates clockwise. Clutch gear 3
Along with the rotation of 6,37, the eject arm 32 rotates counterclockwise about the shaft 34, and the eject arm 33 rotates clockwise about the shaft 35. Therefore, the pin 3 provided at the tip of the ejecting arms 32, 33
8 and 39 push the disc 40 and eject the disc 40 toward the disc insertion opening.

The above operation is for a large-diameter disk, but the loading and ejecting operations for a small-diameter disk (8 cmCD) are the same as for a large-diameter disk.

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 surface of the disk 40 with a roller or the like, and the pins 38, 39
Since the outer peripheral surface of the disk is ejected by pressing, the scratch on the surface of the disk can be prevented. Further, in the above-described embodiment, since the rotational driving force of the motor is transmitted to both arms 12 and 22 via one clutch mechanism including gears 8a and 8b to rotate the arms 12 and 22, both arms are rotated. The turning motion of 12,22 is symmetrical about the center line,
The disk can be transported along the center line.

Effect of the Invention The present invention is configured as described above, and according to the present invention,
Since the loading and / or the ejecting is 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 loading and / or the ejecting operation of the disc. Further, the present invention has a structure in which the driving force of the motor is transmitted to the two arms via one clutch mechanism to rotate the two arms, and the operations of the two arms are symmetrical with respect to the center line.
This has the advantage that the disc can be transported on the center line. 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 the device, and FIGS. 3 and 4 are operation explanatory views of the device. 1 ... Board, 2, 3 ... Guide hole, 4 ... Motor, 5 ...
Worm gears, 6 ... Helical gears, 7,8a, 8b ... Gears, 9 ... Spring, 10 ... Felt, 11a, 11b ...
Gears, 12 ... Arms, 13 ... Shafts, 14a, 14b, 15, 16, 17
...... Gear, 18 …… Rubber roller, 19 …… Gear, 20a, 20b, 21
a, 21b …… gear, 22 …… arm, 23 …… axis, 24a, 24b, 25,
26,27 …… Gear, 28 …… Rubber roller, 29 …… Gear, 30,31
...... Gear, 32,33 …… Eject arm, 34,35 ……
Shafts, 36, 37 ... Clutch gears, 38, 39 ... Pins, 40 ... Disk, 41 ... Optical sensor, 42 ... Control circuit.

 ─────────────────────────────────────────────────── ─── 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 (5)

(57) [Claims] 1. A clutch mechanism which is rotated by a rotational driving force of a motor, a roller rotational driving mechanism which rotates a pair of rollers by a rotational driving force of the motor, and the pair of rollers is arranged with respect to a center line of a disc transfer passage. A pair of roller moving mechanisms for moving the rollers toward and away from each other, the rotational driving force of the motor is transmitted to the pair of roller moving mechanisms via the one clutch mechanism, and the rollers are provided on the outer peripheral surface of the disk. A disk loading device, characterized in that the disk is moved by being brought into contact with the roller and driven by the rotation driving force of the roller. 2. The disk loading device according to claim 1, wherein the rotational driving force of the motor is transmitted to the pair of roller rotational driving mechanisms via one clutch mechanism. 3. An ejecting arm that rotates in combination with a roller rotation drive mechanism is provided, and the outer peripheral surface of the disc is pushed by the tip of the ejecting arm to eject the disc. The described disc loading device. 4. An arm rotatably supported, a roller rotatably supported by the arm, a gear rotatably supported by a shaft rotatably supporting the arm, and a rotational drive of the gear. 2. The disk loading device according to claim 1, wherein a roller rotation drive mechanism is configured with a gear train that transmits a force to the roller. 5. An arm is provided with a gear fixed to the arm coaxially with a shaft supported by the arm, and the rotary driving force of a motor is transmitted through the gear to rotate the arm. The disk loading device according to claim 4, wherein