JPS6267773A - Disk device - Google Patents

Abstract

PURPOSE:To stop instantaneously a disk-shaped recording media by providing a member to suppress the rotation of the recording media while the recording media is mounted on a tray. CONSTITUTION:While the disk-shaped recording media 11 mounted on a turntable 41 is held in clamping and rotated by a clamping member 28, a tray 10 is made to rise by the upper and lower mechanism of the tray 10. Thus, an elastic member 12 fitted to the tray 10 is brought into directly press- contacted with the disk-shaped recording media 11, instantaneously, the disk- shaped recording media 11 can be stopped and the disk-shaped recording media can be quickly replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention records information on a disk-shaped recording medium,
The present invention relates to a disk stop mechanism of a disk device that can reproduce information recorded on the F disk-shaped recording medium and/or erase information recorded on the disk-shaped recording medium. A disc device having such a disc stop mechanism is used, for example, as an optical disc device that records, reproduces, and/or erases information using optical means.

(Prior Art) With the development of today's electronics, optical information recording and reproducing technology is capable of randomly recording, reproducing, and/or erasing audio or image information with high performance using a light beam such as a Rede beam. The device has been commercialized. Examples of such devices include optical disc devices,
This is a system in which recorded information consisting of protrusions (pi, )/l turns on the surface of a disk-shaped recording medium made of transparent acrylic resin, etc. is detected digitally by an optical head, photoelectrically converted, and then transferred to an amplifier. After properly adjusting the gain and converting the signal into a predetermined analog value via a reproducing circuit such as a DA converter, the signal is outputted from an output device such as a speaker or CRT. In this way, the desired sound or color image can be obtained instantaneously and with high performance.

In such a disk device, the conventional disk-shaped storage medium storage mechanism applies a back electromotive force to a drive motor such as a spindle motor that rotates the disk-shaped recording medium. There is a method to make the recording medium stag. However, with this method, it takes 5 to 6 seconds for the drive motor to stall, making it impossible to quickly replace the disk-shaped recording medium.

In addition, as shown in Fig. 4, other strug mechanisms include
There is a method in which a belt 5 connected via a granger 4 is brought into pressure contact with a turntable 3 fixed to a rotating shaft 2 of a drive motor 1 such as a spindle motor, thereby causing a straggle. However, this method requires members such as the pusher 4 and the belt 5, and is mechanically complex, resulting in an increase in cost.

(Problems to be Solved by the Invention) The present invention has been made for the purpose of solving the problems of the conventional example, and is capable of instantly stopping a disk-shaped recording medium.
Moreover, it is an object of the present invention to provide a disk device equipped with a disk strug mechanism that is simple and low in cost.

(Means for Solving the Problems) As a means for solving the above problems, one aspect of the present invention is as follows:
``In a disk device having a tray on which a disk-shaped recording medium is placed, and a mechanism that rotates the recording medium away from the tray during recording or reproduction, the tray is provided with:
The gist of the present invention is to provide a member that suppresses rotation of the recording medium in a state where the recording medium is placed.

(Example) Hereinafter, the present invention will be explained in detail with reference to an illustrated example.

1 and 2 are schematic perspective views showing a tray portion of a disk device according to the present invention. In this figure, 10 is a tray, and the tray 10 has a disk-shaped groove 10a on which a disk-shaped recording medium 11 is placed and a U-shaped opening 10b. Reference numeral 12 denotes an elastic member such as rubber, and the elastic member 12 is attached to the tray 10 so as to correspond to the non-recording area on the outer peripheral surface of the disk-shaped recording medium 11 placed in the groove XOa of the tray 10. ing.

Reference numeral 13 denotes a motor connected to a gooley 14, and a neck portion 16m is provided between the gooley 14 and the opposite gooley 15.
A wire 16 is wound around the wire 16, and a protrusion 10c provided on the side surface of the tray 10 is fixed onto the wire 16. 17.18 are protrusions 10e on both sides of the tray 10;
, 10d, 10e with rails penetrated, A -
It is arranged in the A' direction. Reference numerals 19 and 20 denote slide plates arranged along both sides of the inside of the tray 10, and the slide plates 19 and 20 each have a notch 19m,
20a and S-shaped elongated holes 19b, 19c, 20b, 20e (
(not shown) is formed. Also, one slide plate 1
In front of 9 is a pressure contact plate 21 that slides in the A-A' direction.
The other slide plate 20 is connected to the rear of the tray 10 via a spring 22. Reference numeral 23 denotes a shaft rod disposed on the notches 19a, 20a of the slide plate 19.20, and a rotating member 24.25 attached to the shaft rod 23 is disposed within the notch 19a*20a. There is. 26.
27 is a pin provided oppositely on both sides of the inside of the tray 1o, and is connected to the S-shaped elongated holes 19b, 19 of the slide plate 19.20.
e, 20b.

20c (not shown). 28 is the mounting plate 29
The crank member 2 is provided at the bottom of the crank member 2.
8, movable plates 30, 31 are fixed to both ends thereof in the A-A' direction. The movable plate 30°31 has a hole 3 provided at the rear.
The movable plates 30 and 31 are rotatably supported by the disk device main body (not shown) at 0 m and 31 m, and have pins 32 and 33 protruding from the front portions of the movable plates 30 and 31, respectively, and inclined surfaces 30b and 3.
1b is formed. Further, the front portion of one of the movable plates 31 is connected to the main body of the disk device (not shown) via a pin 34. 35 is a presser bar, one end of which is placed above a pin 32 provided on the movable plate 30, and the other end placed below a pin 33 provided on the movable plate 31. 36
is a slide plate provided along the inside of the movable plate 30,
A pin 37 is provided on the outside of the slide plate 30, and a rack 38 is provided on the inside. The pin 37 contacts the inclined surface 30b of the movable plate 30, and the rack 38 meshes with a gear 40 connected to a motor 39. Note that 41 is a turntable.

In this embodiment, when the disk-shaped recording medium 11 is placed in the groove 10m of the tray 10 and the motor 13 is rotated clockwise, the googly 14 is also rotated clockwise and the wire 16 moves in the direction A'. As a result, the protrusions 10e and 10d of the tray 10
, 10e can be moved in the direction A' along the rails 17, 18 to position the tray 10 on the turntable 41. Further, when taking out the disk-shaped recording medium 11, the motor 13 is rotated in the reverse direction, and the tray 10 is moved from the rail 17.
8 in the A direction.

Next, the up and down mechanism of Tray O moves the pressure contact plate 21 in the direction A to press the slide plate 19, and the rotating member 24.25 provided on the shaft rod 23 cuts into the notch 1 of the slide plate 19.20.
Press the edges of 9112010 and attach slide plate 19.20 to A.
move in the direction.

At this time, the pins 26 and 27 provided on both sides of the tray 10 are inserted into the S-shaped slots 19b of the slide plates 19 and 20.

19c, 20b, and 20c (not shown) to lower the tray 10. Further, when the pressure contact plate 21 is moved in the A' direction, a restoring force acts on the spring 22, and the slide plates 19 and 20 are moved in the A' direction. At this time, the bins 26 and 27 provided on both sides of the tray 10
, 20c (not shown) to raise the tray 10.

Further, in the flang mechanism of the tray 10, when the motor 39 is rotated to the left, the gear 40 is also rotated to the left, and the slide plate 36, which is integrated with the rack 38 that is engaged with the gear 40, moves in the entry direction. At this time, in order for the bottle 37 provided on the outside of the slide plate 36 to separate from the inclined surface 30b of the movable plate 30,
The restoring force of 4 acts downward. Further, by pressing the pin 32 provided on the movable plate 30 downward via the presser bar 35, the movable plate 30.31 descends in the direction B using the rear holes 30a, 31& as fulcrums. Therefore, the clamp member 28 provided at the lower part of the mounting plate 29 also moves down in the B direction, and the disk-shaped recording medium 11 placed in the groove IQa of the tray 10 is held by the flanges. Further, by rotating the motor 39 in the reverse direction and moving the slide plate 36 in the A' direction, the pin 37 moves while pressing against the inclined surface 30b of the movable plate 30, and the hole 30a at the rear of the movable plate 30.31 is moved.

It descends in the By direction using 31a as a fulcrum. Afterwards, the clamp member 28 provided at the lower part of the mounting plate 29 also rises together in the direction B', and the flang can be released.

FIG. 3 is a schematic cross-sectional view showing a state in which the disk-shaped recording medium 11 is held by the flang mechanism. In this figure, reference numeral 42 is a drive motor such as a spindle motor, and the turntable 41 is fixedly attached to a rotating shaft 43 of the drive motor 42. In addition, the rotating shaft 4
3, a positioning member 44 is slidably attached to the upper part of the turntable 41, and the positioning member 44 is separated from the turntable 41 by a coil spring 45. A centering member 47 is attached to the turntable 41 and supported by a plurality of bins 46 passing through the positioning member 44 so as to allow the positioning member 44 to move in the vertical direction. The centering member 4
A recess is formed on the upper surface of the drive motor 7 as an extension of the rotation shaft 43 of the drive motor 42 . , 29 is a mounting plate, and a pin 48 is fixed on the lower surface side of the mounting plate 29 in the same direction as the rotating shaft 43 so as to be located on an extension of the rotating shaft 43 of the drive motor 42. A clamp member 28 is attached to the bottle 48 via a bearing 49, so that the rung member 28 can rotate around the pin 48. A convex portion is formed on the lower surface side of the clamp member 28 so as to be located on an extension of the rotating shaft 43 of the drive motor 42 . Therefore, the drive motor 4
The rotating shaft 43 of No. 2, the concave portion of the centering member 46, the bottle 48, and the convex portion of the clamp member 28 are arranged on the same straight line in the vertical direction. 11 is a disk-shaped recording medium held by a flang by a clamp member 28 and a turntable 41;
10 is a tray to which an elastic member 12 made of rubber or the like is attached.

Then, while the r-wall-shaped recording medium 11 placed on the turntable 41 is held by the flang member 28 and rotates, the tray 10 is raised by the above-mentioned vertical mechanism for the tray 10. Then, the elastic member 12 attached to the tray 10 and the disc-shaped recording medium 10 come into direct pressure contact, and the disc-shaped recording medium 11 can be stopped instantly.

At this time, due to the structure in which the elastic member 12 attached to the tray 10 comes into pressure contact with the non-recording area portion of the outer peripheral surface of the disk-shaped recording medium 11, there is no possibility of damaging the recording area portion of the disk-shaped recording medium 11. There isn't.

Note that the elastic member 12 is not limited to rubber, but may also be made of nonwoven fabric, oil-impregnated polyacetal, or the like.

Further, the elastic member 12 is arranged on the tray 1 so as to correspond to the entire surface of the non-recording area on the outer peripheral surface of the disk-shaped recording medium 11.
It is not necessary to attach it to 0, and it is also possible to divide it into multiple pieces and attach it.

(Effects of the Invention) As explained above, the 7"4 stop mechanism according to the present invention raises the tray by the tray up-and-down mechanism, and brings the elastic member attached to the tray into direct pressure contact with the rotating disk-shaped recording medium. With this structure, it is possible to stop the disk-shaped recording medium instantly.Therefore, the disk-shaped recording medium can be replaced quickly, and the simple structure of simply attaching an elastic member to the tray allows Cost reduction can also be achieved.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing the vicinity of the tray of a disk device according to the present invention, Fig. 2 is a perspective view showing the same tray, Fig. 3 is a sectional view showing the flang mechanism of the disk device, and Fig. 4 is a conventional one. FIG. 2 is a perspective view showing a main part of a disc stop mechanism of a disc device in an example. DESCRIPTION OF SYMBOLS 10...Tray, 10IL...Groove part, 11...Disc-shaped recording medium, 12...Elastic member, 28...Flang member, 41...Turntable

Claims (1)

[Claims] In a disk device that includes a tray on which a disk-shaped recording medium is placed and a mechanism that rotates the recording medium away from the tray during recording or reproduction, the recording medium is placed on the tray. A disk device characterized by being provided with a member that suppresses rotation of a recording medium.