JPS61229268A - Disc loading device - Google Patents

Abstract

PURPOSE:To prevent damage to a disc because of direct contact of fingers with the disc by loading the disc while being stored in a tray, separating the disc automatically from the tray and coupling the disc to a turntable. CONSTITUTION:When a tray 11 holding the disc 10 is moved along a guide 18 and set above the turntable 13, the tray 11 is moved in an approaching direction to be turntable 13. In the process of movement, the disc 10 contacts the table 13 and then the pin 16. When the tray 11 is moved downward by the operation of the cam 14, the disc 10 is pressed by the pin 16 to spread claws 1, 2, 3, 4 and the disc 11 is removed from the tray 11 and then the loading is finished. Since no finger contacts directly the disc, not only finger print or dust is adhered but also no damage is given to the disc because the signal face of the disc is protected by the tray and the handling itself is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disc loading device for automatically loading a disc into a player.

BACKGROUND OF THE INVENTION In recent years, among optical disk systems, the development of CD (compact disk) players in particular has been remarkable, and in-vehicle CD players and CD-ROM players for use in combination machines are being developed. In particular, CD players used in cars, etc. are required to be easy to handle so as not to have a substantial negative impact on the driver's original driving operation, and they are also required to be easy to handle, compared to those used at home. need to endure.

However, in conventional CD players, a pull-out disc holder is provided on the front of the player, and with this disc holder pulled out, the disc itself is grabbed by hand and placed on the holder, and this holder is placed inside the player. The disc is loaded into the player by moving the disc to the player.

Problems to be Solved by the Invention However, in the conventional CD player as described above, a single disc is placed on the holder, and the disc is placed directly on the holder, making it difficult for people to use the CD player. Fingerprints are likely to be left on the signal surface of the disc when it comes into direct contact with the disc, resulting in incomplete reading of the signal.In particular, in car players, discs are inserted and removed while driving, which can lead to errors. If the disc comes into contact with the holder or the front of the player, it may not only leave fingerprints on the signal surface as described above, but also cause the disc to be scratched or even damaged. There was a risk that the disc would be missing for a long time and the disc would be defective.

In the present invention, the disc is held in the tray by the locking means, and the tray is attached to the player, and the disc is released from the tray inside the player to play the disc. On the other hand, when the playback is finished, the disc is To provide a disc loading device which is held in a tray again and can eject the tray.

This prevents the disc from coming into direct contact with fingers and also prevents the disc from being scratched.

Means for Solving the Problems The present invention involves inserting a tray holding the portion of the outer periphery of the disc where no signals are recorded by means of a locking means, and then relative to the turntable in order to connect the tray and the turntable. The locking of the disk by the locking means is released within a period of time when the disk approaches the disk.

Effect of the present invention With the above-described configuration, the disc can be inserted while being held in the tray, and after insertion, the disc is automatically released from the tray and combined with the turntable, so that the disc can be inserted into the tray. In addition to preventing direct contact with fingers, it also prevents scratches on the disc, and since the part of the outer periphery of the disc where no signals are recorded is locked by the locking means,
Since the signal surface is not scratched and the disc is unlocked by the locking means within the period of relative movement of the tray and turntable, the time required from insertion of the disc to playback is reduced. It takes less time.

Embodiment First, a tray used in an embodiment of the present invention will be described with reference to FIG.

This tray is designed to push the outer periphery of the disc where no signal is recorded toward the center of the disc so that the disc does not fall out of the tray, and to prevent the disc from falling when pulled out in the direction of arrow X, that is, to prevent it from falling. A claw 1°2.3.4 having elasticity for holding the disc, a turntable for holding and rotating the disc in the center, and an opening 9 for bringing a pickup for extracting signals recorded on the disc close to the disc; Said claws 1, 2, 3°4
An opening 5 for inserting a pin that pushes the part of the disk's outer periphery where no signal is recorded, from the bottom to the top, and removes the disk from the tray.
It has a structure with 6, 7, and 8. By using such a tray to load the disc into the player, fingers do not touch the disc directly, so fingerprints are not left on the disc, and the signal recording surface of the disc is covered by the tray. This reduces the chance of scratches and withstands rough handling, making it ideal for in-vehicle CD players and the like.

1 and 2 are schematic cross-sectional views corresponding to the Moom' cross section (hatching is omitted) in FIG. 3 of a disc loading device according to an embodiment of the present invention, and FIG.
-c represents the loading operation, and FIG. 2 &-0 represents the ejection operation. Figure 1.

In FIG. 2, 1o is a disk, 11 is a tray, 2.
4 is a claw for holding the disc 10, 12 is a spindle motor, 13 is a turntable, and 14 is a tray 1.
1 and a cam for raising and lowering the push-in pin 17 (not shown in FIG. 1); 15 is a holding member for holding the spindle motor 12, the push-up pin 16, and the cam 14; 16 is a holding member for holding the disk 1o from the tray 11; In order to remove the disk 1, it is inserted into the holes 5, 6, 7.8 shown in FIG.
Push-up pins (hereinafter referred to as pins) provided at the bottom of the inner surface of the holding member 15 to press the outer periphery of the disc 1o, 17 are close to the claws 1, 2, 3.4 of the tray 11 in order to push the disc 1o into the tray 11. Four push-in pins (hereinafter referred to as pins) provided at the positions 18 are guides that hold the tray 11.

The operation of the disc loading device of this embodiment configured as described above will be described below.

First, the loading operation shown in Figure 1.
As shown in Figure a, a tray 11 holding a disk 1o
is moved along the guide 18 and set above the turntable 13. Next, by the operation of the cam 14, the tray 1 is
1 moves in a direction approaching the turntable 13. During this moving process, as shown in Figure 1, the disk 1
o contacts the turntable 13 and then contacts the pin 16. When the tray 11 is moved downward as shown in FIG. 1C by the operation of the cam 14, the disk 10 is pushed by the pin 16, and the claws 1, 2, and 3 degrees 4 are spread and removed from the tray 11, completing loading. do. Note that when loading is completed, the disc 1o is sandwiched between the turntable 13 and a member (not shown) for fixing the disc 1o, and is fixed to the turntable 13.

Next, the eject operation will be explained. As shown in FIG. 2 &, a disc 1o is set on a turntable 13. As shown in FIG. From this state, the tray 11 moves in a direction to remove the disk 1o from the turntable 13 by the operation of the cam 14. During this moving process, the pin 17 comes into contact with the outer periphery of the disk 1o as shown in FIG. 1o, the disk 1° finally reaches the tray 11.
held within. Next, as shown in Figure 2C, pin 17
is moved away from the disk 10 by the operation of the cam 14, and the tray 11 is ejected into a state similar to the initial state when it is inserted into the player.

Effects of the Invention In the present invention, since the disc can be loaded while being held in the tray, compared to conventional players that do not use a tray, the disc is not directly touched by fingers, which not only makes it difficult for fingerprints and dirt to stick to the disc, but also allows the disc to be loaded easily. Since the signal surface of the disc is covered by the disc, it is easy to handle and prevents scratches even under harsh usage conditions such as in cars.

In addition, since the disk is held in the tray by using a locking means to lock the outer peripheral part of the disk where no signal is recorded, there is no locking scratch on the signal surface of the disk. Since the disc is released from the lock by the locking means during the period of relative movement for coupling the disc and turntable, the disc is inserted and played while coupled with the turntable. This reduces the amount of time it takes to load the disc, and therefore allows for extremely smooth disk loading, which is highly effective.

[Brief explanation of drawings]

1A-C are schematic cross-sectional views showing the loading operation of a disc loading device according to an embodiment of the present invention, FIGS. FIG. 3 is a perspective view of a tray used in the disc loading device. 1.2, 3.4...Tlaw, 5,6,7.8...
...opening, 9...opening ゛, 1o...
...Disc, 11...Tray, 12...
... spindle motor, 13 ... turntable, 14 ... cam, 15 ... holding member, 16 ... push-up pin, 17 ...・
・Push pin, 18...Guide. Name of agent: Patent attorney Toshio Nakao and one other IO
-m-disk n---) Ray 12----Spindo J Shichi-g 13--Goonku-7) Shi 14-Eleven Power A 16---Evaluation upper 11 Bin I7---Yuu υ Included pin figure 2

Claims (1)

[Claims] A tray that holds a disk by locking a portion of the outer periphery of the disk where no signal is recorded with a locking means, a guide means that guides insertion of the tray holding the disk, and a tray that is inserted together with the tray. A turntable and a pickup are provided in advance at positions corresponding to the disc through an opening provided in the tray thereof, and a holding member for holding the turntable is provided for coupling the disc and the turntable. A disk loading device characterized in that the disk is unlocked by the locking means during a period of relative movement of the tray and the turntable.