JPS6050744A - Reproducer of optical disk record - Google Patents

Abstract

PURPOSE:To load assuredly an optical disk with simple constitution even in case the disk is loaded erroneously by providing a disk store part for a tray and a disk position control part for both inside and outside of loading track at the tray inlet/outlet of a cabinet. CONSTITUTION:An optical disk 25 is loaded erroneously to the disk store part 16 of a tray main body 13 with the disk stuch out toward an end of the part 16, and an ejection key 14 is operated. In such a case, the fringe part of the disk 25 touches the end of opening part 22 of a front panel and the control part 21 of the part 16 as the disk is loaded toward an arrow B. Therefore the disk 25 is shifted toward an arrow C. When the disk 25 is loaded further toward B, the fringe part of the disk is detached from the part 22, then abuts on a projection part 24 for control of disk position at the right side to receive the position control. Thus the disk 25 is shifted more toward C as it is loaded. When the disk 25 is shifted toward C until the maximum diameter part of the disk has a contact with the part 24, the position of the disk is corrected to the part 16. Thus the disk 25 is loaded correctly to the part 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement of an optical disc record playback device suitable for optical r) AD (digital audio disc) 7 stems.

[Technical background of the invention and its problems]

Recently, in the field of audio equipment, a digital recording and reproducing method using PCM (Pulse Coat Monouration) technology has emerged and is becoming popular in order to achieve as high fidelity as possible. In other words, this is called digital audio, and the principle is that the audio characteristics are independent of the characteristics of the recording medium and are much superior to the conventional analog system. This is because it has been established. In this case, a disk (disk) is used as the recording medium.
The system that targets is called the DAD system.
Known reproduction methods include optical, electrostatic, and mechanical. Regardless of which of these playback methods is adopted, the playback device that embodies it must be capable of satisfying various advanced functions and performances not found in conventional playback methods. Ru.

For example, in an optical disc record playback device that uses the CD (Connogected Disc) method among optical playback methods, a digital (PCM) disc is used instead of a transparent resin disc.
) An optical disk with a diameter of 12 crn and a thickness of 1.2 cm, which is coated with a thin metal film that forms pits (irregularities with different reflectances) corresponding to the conversion data, was measured using the CLV (constant linear velocity) method. It is driven at variable rotational speeds of about 200 to 500 r, p, m. In this case, the above-mentioned disk has a track pitch of 1.6 μm and contains a huge amount of information that can be played in stereo for about 1 hour, so it is equipped with various advanced functions and performances. This is easily understood.

The next requirement for the above-mentioned optical disc record playback device is to organically combine additional functions in accordance with various requirements with each mechanical part in a simple configuration in order to further improve functionality and performance. The objective is to satisfy each of the S requirements.

By the way, specific examples of additional functions include cases where the handling of the disc is improved and protection measures such as damage prevention are further promoted.

However, such an optical disc record playback device is designed to ensure that even if the disc is incorrectly loaded, it will not be damaged if the disc is loaded. The purpose of the present invention is to provide a device with a simple configuration so that loading can be performed, without increasing the size, and to facilitate improvement in handling and protection measures.

[Purpose of the invention]

This invention has been made in view of the above circumstances, and has an extremely good optical disc record playback system that has a simple structure, promotes protection measures for optical discs, and makes it possible to improve the handling of the optical discs. [Summary of the Invention] That is, the present invention provides an optical disc record in which a tray containing optical discs in a substantially horizontal manner is loaded horizontally into and out of a cabinet. In the playback device, the tray is provided with a regulating part for regulating the position of the disc corresponding to the disc accommodating part thereof, and a regulating part for regulating the disc position is provided in the tray, and a regulating part is provided on the outside and inside of the rope (rope) of the entrance/exit part of the cabinet corresponding to the disc accommodating part. first and second regulating parts for disc position regulation are provided, and when the optical disc is incorrectly accommodated, the regulating part of the tray and the first and second regulating parts of the cabinet are arranged in conjunction with loading. This feature is characterized in that the position is corrected in cooperation with the

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

Figures 1 and 2 are CDs to which this invention is applied, respectively.
This figure shows the disc loading mechanism of a type of optical disc record playback device.

That is, in the ice loading mechanism section, a tray main body 13, which accommodates an optical disc (not shown in FIGS. 1 and 2) in a substantially horizontal manner, is arranged in a front panel I2 of the cabinet 11. It is disposed such that it can be freely moved in and out in the directions of arrows (A) and (B) via a loading mechanism (not shown). And this tray main body 13 is the above-mentioned front J?
In conjunction with the operation of the EJECT key 14 provided on the panel 12, the loading mechanism is driven to a predetermined state and guided by the guide rail 15 (see Figure 2) to the disk loading/unloading position and drive position. It is designed to be loaded.

Here, a mechanism for preventing erroneous disk loading, which is constructed for the disk loading mechanism section, will be explained.

In this case, first, the tray main body J3 in which the disk is accommodated in a substantially horizontal manner has a generally concave disk accommodating portion 16 formed on its upper surface in a generally circular shape corresponding to the disk. Concave portions 17 and 1B for attaching and removing disks are formed near both ends of the disk accommodating portion 16 corresponding to its maximum diameter. Among these, a through hole 19 for transmitting laser light is formed in the disk housing portion 16 in the depth direction from approximately the center of the bottom surface thereof, corresponding to a turntable and an optical pickup (not shown). A disk guiding inclined portion 2o inclined inwardly along the inner circumference is formed with its front side eccentrically wide in both end directions with respect to the recessed portion 17.1B. Further, the tray main body 13 has a regulating portion 21 for regulating the disk position that engages with the peripheral edge of the disk and the inclined portion 21 on the upper surface thereof.
It is provided protrudingly on the front side corresponding to 0.

On the other hand, an opening 22 for tray entry and exit is formed in the front panel 12, and a pair of protrusions 23 for disc position regulation are provided at the upper end of this opening 22 at a position recessed from the front surface. 24 are formed at narrower intervals than the maximum diameter portion of the disk accommodating portion 16 of the tray body 13.

In this case, the distance (6) (see FIG. 2) between the tip of each of these projections 23 and 24 and the upper surface of the tray body 13 is narrower than the thickness of the disk (1.2wn). It is formed like this.

That is, in the above configuration, as shown in FIG. 3, the optical disc 25 may be incorrectly accommodated in such a way that it protrudes toward one end (to the right in the figure) with respect to the disc accommodating portion 16 of the tray body 13. When the eject key 14 is operated, as the eject key 14 is loaded in the direction of arrow (B), its peripheral edge comes into contact with one end of the opening 22 of the front panel and the flannel 12, as shown in FIG. 4, and its position is regulated. At the same time, since the peripheral edge on the rear end side comes into contact with the regulating part 21, the arrow (C)
) direction. The disk 25 is the fifth disk.
As shown in the figure, when it is further loaded in the direction of the arrow in the middle), its peripheral portion is separated from the end of the opening 22 and comes into contact with the protrusion 24 on the right side of the figure to restrict its position. Accordingly, it is further moved in the direction of arrow (C). At this time, as the disk 25 is loaded as shown in FIG. 6, when the disk 25 is moved in the direction of arrow (C) until its maximum diameter comes into contact with the protrusion 24, the disk accommodating portion 16 is tilted. The disk is guided to the disk accommodating section 2o and corrected and accommodated in the disk accommodating section 1ρ. As a result, when the loading of the tray main body 13 in the direction of arrow (B) is completed, the disc 25 is flanged to the turntable by a disc crank-e-am section (not shown) in a state where it can be played. This allows you to enjoy disc playback in conjunction with a zoreiki (not shown).

Furthermore, if the disk 25 is incorrectly accommodated in such a way that it protrudes toward the other end (left side in the figure) with respect to the disk accommodating portion 16,
The other end of the opening 22 of the operation panel I2, the projection 23 on the right side in the figure, the regulating part 21 and the inclined part 2 of the tray body 13
In almost the same way as the correction operation described above, in cooperation with o,
The disc 9- is corrected and accommodated in the disc accommodating portion 16, and its explanation will be omitted here.

As described above, the disk mounting prevention mechanism is provided with a regulating section 21 for regulating the disk position in the disk housing section 16 of the tray body 13, and a regulating section 21 for regulating the disk position with respect to the front panel 12. The end of the opening 22 and protrusions 23 and 24 are provided as regulating parts for disc position regulation on the outside and inside, and the discs 25 that are erroneously housed due to their cooperation during loading are provided.
The structure is configured to prevent incorrect attachment by forcing the user to correct the position of the connector. This makes it possible to reliably prevent the disc 25 from being erroneously mounted, thereby making it possible to improve the protection measures for the disc 25 and the ease of its handling.

Furthermore, the present invention is not limited to the above-mentioned embodiment, but as shown in FIG. It is equally effective even if it is formed uniformly without centering.

In each of the above embodiments, the opening 22 for tray entry and exit formed in the operation panel 12 of the cabinet 1 is also used for regulating the disk position, but the invention is not limited to this, and for example, the operation panel 12 On the other hand, the tray body 13
It is equally effective to provide a dedicated disc position regulating part on the outer side of the loading track so as to face the peripheral edge of 2472250 and correspond to the f (spout accommodating part 16).

〔Effect of the invention〕

As detailed above, according to the present invention, with a simple configuration,
Furthermore, it is possible to provide an extremely good optical disc record playback device that promotes protection measures for the optical disc and improves its handling properties.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an optical disc record playback device showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1,
FIGS. 3 to 6 are plan views showing the operating state of FIG. 1, and No. 71 is a perspective view showing another embodiment of the present invention. 1 No...Cabinet, 12...Front panel, 13
...Tray body, 14...Eject key, 15.
...Guide rail, 16...Disk storage section, 17.
18... Recessed part, 19... Through hole, 20... To inclined width 21... Regulating part, 22... Opening part, 2.9, 24
... protrusion, 25... disk.

Claims (1)

[Claims] In an optical disc record playback device in which a tray containing optical discs in a substantially horizontal manner is loaded horizontally into and out of a cabinet, a disc position regulating device is used for regulating the disc position with respect to the tray corresponding to the disc storage part of the tray. and first and second regulating parts for regulating the position of the optical disc are provided on the outer and inner sides of the loading track of the loading/unloading part of the cabinet in correspondence with the disc accommodating part, and the optical disc In the mis-accommodated state of the tray, the regulation part of the tray cooperates with the first and second regulation parts of the cabinet in conjunction with loading to prevent
An optical disc record playback device characterized in that it is configured to perform correction.