JP2003051148A - Disk unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk unit of simplified structure in which the number of chucking mistakes are decreased, damage to a disk or a pick up is prevented, thereby the service life of a product is prolonged. SOLUTION: The disk unit is provided with a guide roller 1 arranged at the undersurface of a rotary tray 5 and a rotary tray 5 which has a mountain 5a and a valley 5b at a portion contacted by the guide roller 1 and uses, as a chucking position, a position where the guide roller 1 is located at the portion of the valley 5b. The guide roller 1 is moved upward along the undersurface of the rotary tray 5 the guide roller 1 and pick up 3 are fixed, and the upward movement of the guide roller 1 guides and moves the pick up 3. When the guide roller 1 contacts a rotary tray 5, the rotary tray 5 is rotated to a position where the guide roller 1 contacts the portion of the valley 5b. Then, the guide roller 1 and the pick up 3 are separated, the pick up 3 is move upwards, toward the rotary tray 5 side to carry out chucking.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device in which a pickup is lifted up for chucking.

[0002]

2. Description of the Related Art Conventionally, as a disk device of this type, for example, there is a disk table control device in a disk player disclosed in Japanese Patent Laid-Open No. 62-289960. As shown in FIG. 4 to FIG. 9, this is a disc mounting portion 11 on which a plurality of recording medium discs 117 are mounted separately.
Disk table 11 in which a plurality of 6 are arranged in a substantially annular shape
4, the drive means 120 and 121 for rotating and driving the disc table 114, and the reproducing unit 126. For reproducing the recorded content of the pre-recording medium disc 117, the disc table 114 is selected from among the plurality of disc mounting units 116. A disk table control device 150 in the disk player 101, in which the recording medium disk 117 to be reproduced is placed so as to come to a reproduction position facing the reproducing section 126,
4, an engaging portion 124 is formed at a position corresponding to each of the plurality of disk mounting portions 116, and a stopper 151 that engages with the engaging portion 124 in a disengageable manner;
Stopper control means 155 and 156 for controlling 51,
When the disc mounting portion 116 on which the recording medium disc 117 to be reproduced is mounted reaches the reproducing position and the stopper engages with the engaging portion of the disc table, the driving means 12
The control means 171 for stopping the operations of 0 and 121 are provided. However, in this case, since a sensor (detection means) for detecting the stop position of the recording medium disk 117 is used, there is a problem that the number of parts is increased and the structure is complicated.

Further, Japanese Patent Application Laid-Open No. 9-326154 discloses a disk device and a loading method thereof. As shown in FIGS. 10 to 15, this is a disc device that selectively reproduces any one of a plurality of disc CDs, and discs that are adjacent to each other in a posture inclined from the horizontal position of the plurality of discs CDs. A tray 214, which forms the mounting surfaces 288A and 288B formed so as to partially overlap each other, and rotates the selected selected CD among the plurality of CDs to the stop position, and the selected disc CD are mounted. Turntable 258
And a clamper 262 for chucking the selected disk CD with the turntable 258, and a clamper 262 arranged so as to be parallel to a straight line connecting the axis of the tray 214 and the axes of the mounting surfaces 288A and 288B located at the stop position. And the support shaft 266 for making the clamper 262 parallel to the selection disc CD placed on the placement surfaces 288A and 288B.
After D is raised to a position where it does not interfere with the adjacent disc CD and the clamper 262 is rotated about the support shaft 266 to chuck the selected disc CD,
The selected disc CD is pulled out to a position where reproduction or the like is performed in a state where the inclined posture is substantially held. However, this has a problem in that there are many parts and the structure is complicated.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and simplifies the structure without using a detection means such as a sensor, and prevents chucking mistakes during chucking. An object of the present invention is to provide a disk device that can be reduced in number and can prevent the disk and the pickup from being damaged by reducing chucking mistakes and prolong the life of the product.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above problems, and the invention according to claim 1 lifts the pickup upward to perform chucking. In the disk device, a guide roller is provided on the lower surface of the rotary tray, and a ridge and a valley are provided at a portion where the guide roller is in contact with the rotary roller. The guide roller is moved upward along the lower surface of the rotary tray, and at this time, the guide roller and the pickup are fixed, and the pickup is guided and moved along with the movement of the guide roller upward. When the roller touches the rotary tray, the rotary tray rotates to the position where the guide roller touches the valley. And, and then the guide rollers the pickup by separating the pickup is moved upward toward the rotary tray side is characterized by being configured to perform chucking.

According to a second aspect of the present invention, the reproducing device having the pickup and the guide main body having the guide roller are in contact with each other via a spring, and when the pickup is lifted up and the guide roller comes into contact with the rotary tray, the rotary tray is rotated. The rotary tray is rotated to a position where the guide roller is in contact with the valley portion of, and then the pickup is further lifted upward and chucked.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a disk device according to the present invention will be described below with reference to the drawings. Figure 1
Shows a main part of the disk device according to the first embodiment of the present invention,
(A) is a partial schematic front view showing a state immediately before raising the pickup before chucking, and (b) is a partial schematic front view showing a state when raising the pickup and chucking.

The disk device of the first embodiment is shown in FIG.
As shown in (a), the upper end of the pickup 3 is attached to the support ribs 2b and 2b that are respectively provided inwardly on the left and right rod-shaped support portions 2a and 2a of the guide body 2 having the pair of left and right guide rollers 1 and 1. The ribs 4a, 4a protruding outward are placed on the left and right outer surfaces of the reproducing mechanism 4 of FIG. 1 to hold the reproducing device 4 at a predetermined lower position. Further, ridges 5a and valleys 5b are alternately formed on the peripheral edge of the rotary tray 5, and in FIG. 1A, a pair of left and right guide rollers 1 and 1 are provided between the ridges 5a and valleys 5b. Touching. Then, as shown in FIG. 1B, when the guide rollers 1 and 1 are located in the valley 5b, the chucking position is set.

In the disk device of the first embodiment constructed as described above, the guide rollers 1, 1 are moved upward along the lower surface of the rotary tray 5, and at this time, the guide main body 2 having the guide rollers 1, 1 The reproducing device 4 having the pickup 3 is fixed, and the pickup 3 is guided and moved as the guide rollers 1 and 1 move upward. As shown in FIG. Contacting the guide roller 1, the rotary tray 5 rotates to a position where the guide rollers 1, 1 come into contact with the valleys 5, 6, and thereafter, as shown in FIG.
1 and the pickup 3 are separated and the pickup 3 is moved upward toward the rotary tray 5 side to perform chucking.

Although not shown in FIG. 1 (b), a plurality of reproductions are made on the bottom of the rotary tray 5 at the bottom thereof toward the outside, as shown in FIG. 4, for example. FIG. 1B shows a state in which the pickup hole is formed and the pickup 3 is inserted into the reproducing hole. In this way, when the guide rollers 1 and 1 are located in the valley 5b formed on the lower surface of the rotary tray 5, the chucking position is achieved.
Accurate chucking can be performed only by locating the guide rollers 1 and 1 in the valley 5b, and the chucking mistake at the time of chucking can be reduced, and the chucking mistake can be reduced. It is possible to prevent the disc or the pickup from being damaged and prolong the life of the product, and it is possible to simplify the structure without using a detection means such as a sensor.

FIG. 2 is a side view showing an essential part of the disk device of the second embodiment, and FIG. 3 is a partial schematic front view showing an essential part of the disk device of the second embodiment. In the disk device according to the second embodiment, the reproducing device 4 having the pickup 3 is continuously provided in the vertical guide groove 6a of the cylindrical rotating body 6 through the rod-shaped dielectric 7, and the rotating body 6 rotates. A reproducing mechanism 4 which is configured to rise through the guide groove 6a and the rod-shaped dielectric 7 and further has a pickup 3.
The guide body 2 having a guide roller 1 and a substantially L-shaped side view is in contact with each other via a spring 8. Then, the pickup 3 is lifted upward, and as shown in FIG. 3, when the guide rollers 1 and 1 contact the rotary tray 5, the rotary tray is moved to a position where the guide rollers 1 and 1 contact the valleys 5 and 6 of the totalary tray 5. 5 is rotated, and then the pickup 3 is further lifted upward and chucked.

According to the disc device of the second embodiment, the reproducing device 4 having the pickup 3 via the spring 8 is provided.
Since the guide main body 2 having the guide roller 1 is in contact with the guide main body 2 having the guide roller 1, the guide main body 2 having the guide roller 1 can be raised only by the mechanism for raising the reproducing device 4 having the pickup 3. Since no other mechanism for raising the guide body 2 is required, the structure can be simplified.

Further, when the guide rollers 1, 1 are located in the valley 5b formed on the lower surface of the rotary tray 5, they are in the chucking position.
It is possible to perform accurate chucking simply by locating the groove on the valley 5b, and to reduce chucking mistakes when performing chucking. It can prevent damage and prolong the life of the product.
The structure can be further simplified without using a detection means such as a sensor.

[0014]

As described above, according to the first aspect of the invention, in the disk device in which the pickup is lifted upward to perform chucking, the guide roller disposed on the lower surface of the rotary tray, The guide roller is provided with a ridge and a valley, and when the guide roller is located in the valley portion, the rotary tray is provided as a chucking position, and the guide roller is moved upward along the lower surface of the rotary tray. When the guide roller and the pickup are fixed at this time, the pickup is guided along with the upward movement of the guide roller, and when the guide roller comes into contact with the rotary tray, the position where the guide roller comes into contact with the valley portion The rotary tray rotates until the guide roller and the pickup are separated. Since it is configured the pickup to perform the chucking is moved upwardly toward the rotary tray side, an effect described below.

That is, when the guide roller is located at the valley portion formed on the lower surface of the rotary tray, the chucking position is set. Therefore, the guide roller is accurately located only at the valley portion. It is possible to perform chucking and reduce chucking mistakes when performing chucking.By reducing the chucking mistakes, it is possible to prevent the disc or pickup from being damaged and extend the life of the product. Furthermore, the structure can be simplified without using a detection means such as a sensor.

According to a second aspect of the present invention, the reproducing device having the pickup and the guide body having the guide roller are in contact with each other via a spring, and when the pickup is lifted up and the guide roller comes into contact with the rotary tray, the rotary tray is rotated. Since the rotary tray is rotated to a position where the guide roller contacts the valley portion, the pickup is further lifted upward and chucked, so that the following effects are obtained. That is, since the reproducing device having the pickup and the guide main body having the guide roller are in contact with each other via the spring, the guide main body having the guide roller can be raised only by the mechanism for raising the reproducing device having the pickup. Since no other mechanism for raising the guide body having the guide roller is required,
The structure can be simplified.

Further, since the chucking position is reached when the guide roller is located in the valley portion formed on the lower surface of the rotary tray, accurate chucking is performed only by positioning the guide roller in the valley portion. You can
It is possible to reduce chucking mistakes during chucking, prevent scratches on the disc and pickup due to less chucking mistakes, and prolong the life of the product. The structure can be further simplified without using it.

[Brief description of drawings]

FIG. 1 shows a main part of a disk device according to a first embodiment of the present invention, (a) is a partial schematic front view showing a state just before raising a pickup before chucking, (b).
FIG. 7 is a partial schematic front view showing a state when the pickup is lifted and chucked.

FIG. 2 is a side view showing a main part of a disk device according to a second embodiment.

FIG. 3 is a partial schematic front view showing a main part of a disk device according to a second embodiment.

FIG. 4 is a plan view showing a notched outer casing in a conventional disc table control device.

FIG. 5 is a perspective view showing an appearance of the same device.

6 is an enlarged cross-sectional view showing a main part cut along the line AA of FIG.

FIG. 7 is an enlarged side view of a main part of a slide tray of the same device, viewed from below.

FIG. 8 is a partial cross-sectional view of the same device.

FIG. 9 is an enlarged perspective view of a stopper of the device.

FIG. 10 is a plan view showing a conventional disk device.

FIG. 11 is a plan view showing a drive mechanism of a pickup device and a tray with a part of FIG. 10 cut away.

FIG. 12 is a cross-sectional view showing a main part of a state (tray storage state) between the pickup device and the clamper shown in FIG.

13A is a plan view showing a state of the clamper holder of FIG. 12. FIG. (B) is a sectional view taken along line XX of (a),
(C) is sectional drawing of the YY line of (a).

14A is a sectional view taken along line ZZ of FIG.
11B is a schematic cross-sectional view showing a state where a disc is placed on the CD tray shown in FIG. 11.

15 is a block diagram of the disk device shown in FIG.

[Explanation of symbols]

1 Guide roller 2 Guide body 3 pickups 4 playback mechanism 5 Rotary tray 5a mountain 5b valley 8 springs

Claims (2)

[Claims] 1. In a disk device in which a pickup is lifted upward to perform chucking, a guide roller disposed on the lower surface of a rotary tray and a ridge and a valley are provided at a portion where the guide roller is in contact with each other. When the guide roller is positioned at the position of, the rotary tray is set to the chucking position, and the guide roller is moved upward along the lower surface of the rotary tray, at which time the guide roller and the pickup are fixed. When the guide roller moves upward, the pickup is guided, and when the guide roller comes into contact with the rotary tray, the rotary tray rotates to a position where the guide roller comes into contact with the valley portion, and then the guide roller and the pickup are separated from each other. Separate and direct the pickup to the rotary tray side. A disk device characterized in that it is structured so as to be chucked by moving upward. 2. A reproducing mechanism having a pickup and a guide body having a guide roller are in contact with each other via a spring, and when the pickup is lifted up and the guide roller comes into contact with the rotary tray, the guide roller is provided at a valley portion of the rotary tray. A disk device characterized in that the rotary tray rotates to a position where the two come into contact with each other, and then the pickup is further lifted and chucked.