JPH11232756A - Disk recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a disk from being kept revolving when a lid member is in an open state by interrupting a power source driving the rotary driving body of the disk while being linked with the movement to the open state of the lid member covering the rotary driving body of the disk and braking the disk at its outer circumferential edge parts. SOLUTION: When a lid releasing lever 9 is slided to the direction of the arrow B along the guide groove of a cabinet, a first driving lever 19 is guided along the slope of the lid releasing lever 9 to be moved to a disk 8. As a result, the pad part 18a of a braking member 18 pressurizes the outer circumferential part of the disk 8. Moreover, the first connection lever 25 stuck to the first driving lever 19 is also moved upward and a second connection lever 26 is rotated to the clockwise direction around a pin 27. Then, a second driving lever 20 is moved to the side of the disk 8 being in the downward position and the pad part 18a of the braking member 18 pressurizes the outer circumferential part of the disk to stop the revolving disk quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of reproducing a signal and / or
The present invention also relates to a disk recording / reproducing apparatus for recording.

[0002]

2. Description of the Related Art Conventionally, in a disk recording / reproducing apparatus, when a lid is opened during reproduction or recording of a disk, power supply for rotationally driving the disk is also cut off at this time. Electric braking cannot be performed to stop the motor. For this reason, if the lid is opened during playback or recording, the disc will rotate by inertia as it is, not only causing damage to the disc surface, but also causing damage to the user's hands and fingers. There is a problem that it is dangerous.

For example, Japanese Patent Laid-Open Publication No. Sho 51-72404 discloses a turntable braking mechanism that applies a brake to the turntable when the lid is opened while the turntable on which the disc is mounted is rotating. Has been
According to this, in conjunction with the operation of the lid release button, the friction pad is brought into contact with the lower surface of the turntable to brake the rotating turntable. In JP-A-51-72404, a braking mechanism for bringing a friction pad into contact with the lower surface of a turntable as described above is applied to an apparatus of a type that reads a signal by a pickup from a groove of a disk record having a groove formed on the upper surface. ing.
However, in a disk reproducing apparatus (so-called CD-compact disk player) of the type that reads signals on the lower surface of a disk, the disk is supported by a spindle smaller in diameter than the above-described turntable so that signals on the lower surface of the disk can be read. When the conventional braking mechanism is applied to this device, the friction pad comes into direct contact with the lower surface of the disk, damaging the surface of the disk where the signal is recorded. There is a risk that it will.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has a disk recording apparatus capable of promptly stopping the rotation of a disk when a cover is opened during reproduction or recording of the disk. -To provide a playback device.

[0005]

SUMMARY OF THE INVENTION The present invention provides a brake mechanism for braking a disk at an outer peripheral edge in conjunction with movement of a lid member to an open state, whereby the disk rotates when the lid member is in an open state. I try to prevent it from being left.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an entire portable type disk reproducing apparatus. The disc reproducing apparatus 1 mainly includes a cabinet 7 and a lid 2, and the cabinet 7
And the lid 2 are connected by a connecting member 6. And
The lid 2 can be moved between the open state and the closed state via the connecting member 6.

A base 15 is provided in the cabinet 7, and an objective lens 14 and a mounting member 13 are provided on the base 15. The objective lens 14 has a base 15
Can be moved in the radial direction along the opening 15a formed at the center. A spindle 16 is fixed on the mounting member 13, and the mounting member 13 and the spindle 16 are rotatable with respect to the base 15. Also, small spheres 16a and 16
b and 16c are in elastic contact with each other to urge radially outward via an elastic member (not shown). Thereby, the balls 16a, 16
By pressing b and 16c, the spindle 16 is retracted inward, and when the pressing is stopped, the state returns to the state before the pressing, that is, the state in which it protrudes from the side peripheral portion of the spindle 16.

Then, in order to reproduce the disk 8 (so-called CD-compact disk), first, the inner periphery of the hole opened in the center of the disk 8 is pressed against the spheres 16a, 16b, 16c to move the disk 8 inside the spindle 16. The disc 8 is inserted into the spindle 16 from above by pushing it in.
When the disk 8 is fitted on the spindle 16, the ball 16
The a, 16b, and 16c return to the state in which they protrude from the side periphery of the spindle 16, and the disk 8 is fixed so as not to come off from the spindle 16, and the disk 8 rotates with the spindle 16. Next, the lock claw 3 of the lid 2 is connected to the opening 12 a formed in the cabinet 7.
Into the opening 3a of the lock claw 3 and the lock lever 1
2 is engaged and the lid 2 is closed. Then, when a play button (not shown) of the disc reproducing device 1 (provided on the outer surface of the lid 2) is pressed, the disc 8 rotates and the objective lens 14 moves in the radial direction, and is ejected from the objective lens 14. A laser beam is applied to the surface of the disk 8 (signal recording surface). Then, the light reflected from the surface of the disk 8 is captured by a light receiving element (not shown), processed by a microprocessor, and the signal recorded on the disk 8 is reproduced as sound.

[0010] A torsion coil spring 4 is inserted into the right end of the cylindrical portion 5 formed integrally with the rear end of the cabinet 7, and the torsion coil spring 4 has a linear end. Reference numeral 4a protrudes from the cylindrical portion 5 and elastically contacts the inner surface of the lid 2, and urges the lid 2 to be in an open state (the state shown in FIG. 1). Therefore, in the closed state of the lid 2, the lid release lever 9
Is slid in the direction of arrow A, the lock lever 12
Moves to the radially inward side, the engagement with the lock claw 3 is released, and the lid 2 is opened by the spring force of the torsion coil spring 4 as shown.

Braking members 18, 18 according to the present invention are disposed radially opposite the disk 8, and as described later, the outer peripheral portion of the disk 8 is moved in conjunction with the operation of the lid release lever 9. The rotation of the disk 8 is stopped by being pinched.

When the lid 2 is closed, the lid 2 is pivoted downward from the outer surface side around the cylindrical portion 5, and the cylindrical member 54 formed at the center on the back side of the lid 2 is Rounded protrusion 5 formed at the center of 16
5, the lid 2 is positioned with respect to the cabinet 7.

Further, on the side surface 7a of the cabinet 7,
A hold lever 11 is provided for preventing the spindle 16 from rotating even when the play button is pressed.

FIG. 2 is an enlarged view of the lid release lever 9 mounted on the front side of the side surface portion 7a of the cabinet 7. When the lid release lever 9 is slid to the right along the guide groove 10, the lid 2 opens as described later, and when the hand is released from the lid release lever 9, the lid release lever 9 is returned to its original position by the force of the spring. (The position shown in the figure is shifted to the left). Also,
The lid release lever 9 is formed with a triangular projection 9a and a plurality of rectangular projections 9b, and the projection 9a indicates the direction in which the lid release lever 9 is operated when the lid is released. The operator's finger and lid release lever 9 are formed by a plurality of rectangular projections 9b.
When the lid release lever 9 is operated by increasing the friction between the operator and the operator, the operator can easily perform the operation.

The above description is common to the respective embodiments. Next, a first embodiment of the present invention will be described with reference to FIGS. FIGS. 5 and 6 are schematic diagrams for explaining how the rotation of the disk 8 is braked in conjunction with the operation of the lid release lever 9 in the first embodiment of the present invention. FIG. 5 shows the state before the operation of the lid release lever 9, and FIG. 6 shows the state after the operation of the lid release lever 9.

In FIG. 5, an L-shaped first connecting lever 2 is provided.
The first drive lever 19 is fixed to the end of the horizontal portion 25a of the fifth lever. A braking member 18 having a rubber pad 18a is fixed to an end of the first drive lever 19 on the disk 8 side. A pin 25c is fixed to an end of the vertical portion 25b of the first connecting lever 25.
Is a long hole 26a formed at the end of the second connecting lever 26.
Is engaged. The second connecting lever 26 is provided with a pin 2 mounted in the cabinet 7 as a stationary portion shown in FIG.
7 is rotatably supported. The other end of the second connection lever 26 is connected to the second drive lever 2 via a pin 24.
The second connecting lever 26 and the second drive lever 20 are rotatable around the pin 24, respectively. A braking member 18 having a rubber pad 18a is fixed to an end of the second drive lever 20 on the disk 8 side. Also, the first drive lever 1
In FIG. 9, one end of a torsion coil spring 23 supported by a pin member 53 formed in the cabinet 7 as a stationary portion is inserted and attached to a hole formed in the first drive lever 19. The other end of the coil spring 23 is restricted from moving rightward in FIG. 5 by a pin member 56 formed in the cabinet 7. The torsion coil spring 23 acts so as to urge the first drive lever 19 downward when the first drive lever 19 moves upward in FIG. 5, that is, toward the disk 8.

In the state of FIG. 5 configured as described above, the lid release lever 9 (which is also different from the actual shape but is schematically shown) is moved along the guide groove 10 in the cabinet 7 as a stationary portion. When the disk is slid in the direction of arrow B, the first drive lever 19 is guided by the first guide member 21 along the slope of the lid release lever 9, and
Move to the side. As a result, the pad portion 18a of the braking member 18 presses the outer peripheral portion of the disk 8. (See FIG. 6). Further, the first drive lever 19 fixed to the first drive lever 19
The connection lever 25 also moves upward, and as a result, the second connection lever 26 rotates clockwise around the pin 27 as shown in FIG. Then, the second drive lever 20 moves downward, that is, toward the disk 8, and the pad portion 18 a of the braking member 18 presses the outer peripheral portion of the disk 8.

When the cover release lever 9 is operated in this manner, a pair of braking members 18, 18 arranged in the radial direction of the disk 8 are operated in conjunction with the operation of the lid release lever 9, thereby causing the outer periphery of the disk 8 to move. Part. As a result, the rotating disk 8 stops immediately at the moment when the lid 2 shown in FIG. 1 is opened.

FIG. 3 is a sectional view taken along the line [3]-[3] in FIG. 5, and FIG. 4 is a sectional view taken along the line [4]-[4] in FIG. The thickness of the rubber pad 18a is about 1.2.
mm, which is about 1.5 times the thickness of the disk 8.

Next, referring to FIG. 7, the lid release lever 9 and the lock lever 12 according to the first embodiment of the present invention will be described.
2 shows a relationship between the first drive lever 19 and the first drive lever 19. FIG. 7 shows the inside of the cabinet 7 in FIG. 1, and the cabinet 7 in FIG. 1 is viewed from the bottom side. 7A shows the state before the lid release lever 9 is operated, and FIG. 7B shows the state after the lid release lever 9 is operated.

In FIG. 7A, the cover release lever 9 is connected to a guide groove 10 formed in the side surface 7a of the cabinet 7.
Two guide members 28a and 28b are fixed to the lid release lever 9 to guide the lid release lever 9 in the left-right direction.
Further, an L-shaped engagement member 29 is fixed to the lid release lever 9, a pin 31 is fixed to the engagement member 29, and a long hole 29 a is formed to be inclined to the lower left. I have. The end 31b of the lock lever 12 is rotatably mounted on the pin 31 around the pin 31. A pin 30 is fixed to the other end of the lock lever 12.
One end of a torsion coil spring 32 supported by a pipe member 34 formed in the cabinet 7 is in contact with the pin 30, and the other end of the coil spring 32 is contacted by a pin member 57 formed in the cabinet 7. In FIG. 7A, the rightward movement is restricted. A fan-shaped opening 12c is formed in the center of the lock lever 12, and a pin 33 fixed in the cabinet 7 is in contact with the arc-shaped edge 12d.

A pin 19a fixed to the first drive lever 19 is engaged with the elongated hole 29a of the engagement member 29. The first drive lever 19 has a torsion coil spring 2 supported by a pin member 53 formed in the cabinet 7.
One end of 3 is inserted and attached to a hole formed in the first drive lever 19. The other end of the coil spring 23
By the pin member 56 formed in the cabinet 7,
In FIG. 7A, the rightward movement is restricted.

Then, in FIG. 7A, the lid release lever 9
Is slid in the direction of arrow C, a state shown in FIG. 7B is obtained.

That is, when the cover release lever 9 moves in the direction of arrow C, the engagement member 29 also moves in the direction of arrow C. As a result, the lock lever 12 has its fan-shaped opening 12c.
The arcuate edge 12d is pulled in the direction of arrow C by the engagement member 29 while the edge 12d is in contact with the pin 33.
Therefore, the lock lever 12 rotates counterclockwise around the pin 31. As a result, the lock lever 12 shown in FIG. 7A is located on the other side of the paper surface, and the lock lever 12 shown in FIG. open.

The first embodiment of the present invention is configured as described above, and the operation will be described below.

First, in FIG. 1, when the lid 2 is closed against the urging force of the linear end 4a of the coil spring 4 elastically contacting the inner surface of the lid 2 to keep the lid 2 open. The lock claw 3 is fitted into the opening 12a. At this time, the lock lever 12 is pushed by the lock claw 3 and temporarily moves inward. That is, in FIG. 7A, the lock lever 12 rotates counterclockwise around the pin 31 while pushing down the torsion coil spring 32 via the pin 30, and makes elastic contact with the torsion coil spring 32 via the pin 30. At this time, the lid release lever 9 does not move. Then, when the lock claw 3 is completely inserted into the opening 12a, the lock lever 12 is returned to the original position by the restoring force of the torsion coil spring 32, whereby the lock lever 12 is opened in FIG. The lid 2 is closed by engaging with 3a. At this time, the lid release lever 9 is at the position shown in FIG. 7A, and the relationship between the disk 8 and the braking member 18 is apart as shown in FIG. When the play button on the outer surface of the lid 2 is pressed, the disk 8 contained therein rotates, and the sound recorded on the disk 8 is reproduced.

Next, a case where the cover release lever 9 is operated during reproduction of the disk 8 will be described. In FIG. 7A,
When the lid release lever 9 is slid in the direction of arrow C, as described above, the lock lever 12 rotates counterclockwise around the pin 31 to be in the state shown in FIG. 7B, as shown in FIG. The engagement with the lock claw 3 is released, and the lid 2 is opened by the restoring force of the linear end 4a of the coil spring 4 elastically contacting the inner surface of the lid 2. At this time, the power supply is stopped by opening the lid 2, but if there is no braking member 18, 18 of the present invention, the disk 8 will continue to rotate by inertia, but in the present invention, the braking member 18, 18 The rotation of the disk 8 is stopped by clamping the outer peripheral edge of the disk 8 at the same time as the lid 2 is opened.

That is, by operating the lid release lever 9,
The engagement member 29 fixed to the lid release lever 9 moves in the direction of arrow C, and the pin 19a engaged with the elongated hole 29a of the engagement member 29 is relatively moved with respect to the elongated hole 29a. ,
It moves along the elongated hole 29a to reach the state shown in FIG. 7B.
Thus, the first drive lever 19 is guided by the guide member 21 and moves downward, that is, toward the disk 8 in FIG. 5, and the braking member 18 is moved to the outer peripheral surface of the disk 8 as shown in FIG. Press. Then, as described above, in conjunction with the movement of the first drive lever 19, the braking member 18 fixed to the second drive lever 20 also presses the outer peripheral surface of the disk 8 as shown in FIG. Thus, the rotation of the disk 8 stops.

Next, in FIG. 7B, if the hand is released from the lid release lever 9, the restoring force of the torsion coil spring 23 causes
The first drive lever 19 is pushed back upward, and in conjunction with this, the engagement member 29 and the lid release lever 9 fixed thereto return to the original position shown in FIG. 7A. The lock lever 12 is also moved by the restoring force of the torsion coil spring 32.
Returning from FIG. 7B to the original position shown in FIG. 7A. When the first drive lever 19 returns to the state shown in FIG. 7A, the two braking members 18, 18 shown in FIG. 6 separate from the disk 8 as described above, and move to the state shown in FIG. At this time, since the cover 2 is already opened by the operation of the cover release lever 9, the disc 8 can be taken out from the disc reproducing apparatus 1.

Further, even if the cover 2 is closed after the disk 8 is taken out, the power cut off when the cover 2 is opened is not turned on but remains off.

As described above, according to the first embodiment of the present invention, in conjunction with the operation of the lid release lever 9, the disk 8 is moved to the two braking members 1 disposed opposite to each other.
Since the pressure is held between the discs 8 and 18, even if the lid 2 is opened during the reproduction, the rotation of the disc 8 can be stopped immediately. Therefore, unlike the conventional case, the hand is not hurt by the inertial rotation of the disk 8.

Next, a second embodiment of the present invention will be described with reference to FIGS. 8, 9 and 10. FIGS. 8 and 9 are schematic diagrams for explaining how the rotation of the disk 8 is braked in conjunction with the operation of the lid release lever 9 in the second embodiment of the present invention. 8 shows a state before the operation of the lid release lever 9, and FIG. 9 shows a state after the operation of the lid release lever 9.

In FIG. 8, the vertical portion 4 of the connecting lever 42
An elongated hole 42c is formed at the end of 2b. A pin 45a fixed to the second drive lever 45 is engaged with the elongated hole 42c. Second drive lever 4
5 is rotatably supported around a pin 39 fixedly mounted in the cabinet 7 as a stationary portion shown in FIG. A braking member 18 having a rubber pad 18a is fixed to an end of the second drive lever 45 opposite to the side engaged with the coupling lever 42.

A pin 41 is fixed to the end of the horizontal portion 42a of the connecting lever 42, and the intermediate lever 4
The end of 3 is rotatably connected to the pin 41. A pin 40 at the center of the intermediate lever 43, and the pin 40 is fixedly mounted in the cabinet 7, and the intermediate lever 43 is supported rotatably around the pin 40. An elongated hole 43a is formed at the other end of the intermediate lever 43.
A pin 44a fixed to an end of the first drive lever 44 is engaged.

The first drive lever 44 is rotatably supported around a pin 38 fixedly mounted in the cabinet 7. At the other end of the first drive lever 44, the same braking member 18 as that attached to the second drive lever 45 is fixed.

The first drive lever 44 and the second drive lever 45
Are mounted on one end of springs 36 and 37, respectively, and the other ends of the springs 36 and 37 are mounted on stationary portions 58 and 59 formed in the cabinet 7, respectively.

Then, similarly to the first embodiment, the lid 2
Is closed and the play button is pressed to rotate the disk 8. The state at this time is shown in FIGS. 8 and 10A.

Then, in FIG. 10A, the connecting lever 4
When the cover release lever 9 fixedly attached to the second horizontal portion 42a via the connecting member 46 is moved along the guide groove 10 in the direction of the arrow E, the lock lever 12 is moved by the connecting member 46 to the arrow E. 10B, and acts in the same manner as in the first embodiment to reach the state shown in FIG. 10B, disengages the lock claw shown in FIG. 1, and opens the lid 2. At this time, the connection lever 42 also moves in the direction of arrow E together with the lid release lever 9. In FIG. 8, the connecting lever 42 moves in the direction of arrow D, whereby the first drive lever 44 rotates clockwise around the pin 38, as shown in FIG. The braking member 18 fixed to this end is pressed against the outer peripheral edge of the disk 8. On the other hand, the second drive lever 45 rotates counterclockwise around the pin 39 and presses the braking member 18, which is also fixed to this end, against the outer peripheral edge of the disk 8. In this manner, in conjunction with the operation of the lid release lever 9, the braking member 1
The rotation of the disk 8 can be stopped because the outer peripheral edge of the disk 8 is pressed by the disks 8 and 18.

When the lid release lever 9 is operated, the springs 36 and 37 extend more than before the lid release lever 9 is operated (FIG. 8), as shown in FIG. As a result, the first drive lever 44 and the second drive lever 45 are respectively urged radially outward of the disk 8. And lid release lever 9
When the hands are released, the first drive lever 44 and the second drive lever 45 separate from the disk 8 by the restoring force of the springs 36 and 37, and the lid release lever 9 returns to the original position.
Return to the state of 0A.

As described above, also in the second embodiment of the present invention, in conjunction with the operation of the lid release lever 9, the disk 8 is moved to the two braking members 18, 1 disposed opposite to each other.
8, the same effect as in the first embodiment can be obtained.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 11 shows a state before the operation of the lid release lever 9, wherein an engagement member 61 is fixed to the lid release lever 9, and the lock lever 12 is fixed to the engagement member 61 to this engagement member 61. Pin 60
It is attached so that it can rotate around. The pin 30 fixed to the lock lever 12 is connected to a pin member 34 formed on the cabinet 7 as in the first and second embodiments.
, And abuts against one end of a torsion coil spring 32, which is also restricted from moving to the right by a pin member 57 formed on the cabinet 7.

A long hole 61c is formed at the right end of the horizontal portion 61a of the engaging member 61, and a first drive lever 62 having one end to which the braking member 18 is fixed is formed in the long hole 61c.
The pin 62a fixed to the connector is engaged. And the first
Similarly to the embodiment, one end of a torsion coil spring 64 supported by a pin member 65 formed in the cabinet 7 is inserted into the first drive lever 62 into a hole formed in the first drive lever 62. It is installed. Coil spring 6
4 is connected to a pin member 6 formed in a cabinet 7.
6 restricts movement to the right.

Further, an elongated hole 6 formed at the right end of the horizontal portion 61a is provided at the left end of the horizontal portion 61a of the engagement member 61.
An elongated hole 61b is formed inclining opposite to 1c, and a pin fixed to the end 71a of the second drive lever 71 in which the braking member 18 is fixed to the end 71b. 72 are engaged. Then, the second drive lever 71
One end of a torsion coil spring 70 supported by a pin member 69 formed in the cabinet 7 is connected to the second drive lever 7.
It is inserted and mounted in the hole made in 1. The other end of the coil spring 70 is restricted from moving rightward by a pin member 68 formed in the cabinet 7.

In the third embodiment configured as described above, when the cover release lever 9 is moved in the direction of arrow F shown in FIG. F so that the engagement member 6
The pin 62a engaged with the one long hole 61c is
The first drive lever 62 moves along the elongated hole 61c relative to c, and moves downward while being guided by the guide member 63. Although not shown in FIG. 11, the disk 8 is located between the braking members 18, 18. Therefore, the first drive lever 62 moves toward the disk 8, and the braking member 18 moves the outer peripheral surface of the disk 8. Press. At the left end of the engaging member 61, the pin 72 engaged with the long hole 61b is relatively long with respect to the long hole 61b.
1b, whereby the second drive lever 71
Is moved upward as a whole by being guided by the guide member 67, that is, the braking member 18 fixed to the second drive lever 71 moves toward the disk 8 and presses the outer peripheral surface of the disk 8. Accordingly, in conjunction with the operation of the lid release lever 9, the braking members 18, 18 pinch the outer peripheral edge of the disk 8, so that the rotation of the disk 8 can be stopped.

When the hand is released from the lid release lever 9, the first drive lever 62 and the second drive lever 71 return to the original state shown in FIG. , 18 move away from the disk 8 and the lid release lever 9 returns to its original position.

As described above, also in the third embodiment of the present invention, in conjunction with the operation of the lid release lever 9, the disk 8 is moved to the two braking members 18, 1 disposed opposite to each other.
8, the same effect as in the first and second embodiments can be obtained.

Although the embodiments of the present invention have been described above, the present invention is, of course, not limited to these embodiments.
Various modifications are possible based on the technical idea of the present invention.

For example, in the above embodiment, the braking member 1
Although two disks 8 are used in the radial direction of the disk 8, they are not limited to this, but may be one as shown in FIG. In this case, the disk 8 has the ball 1
Since the drive lever 80 is attached by being locked by 6a, 16b and 16c, a part of the outer peripheral portion of the disk 8 is pressed by the forward movement of the drive lever 80 as described above. When this force is applied to the spindle 16, its rotation is immediately stopped.

Further, three or more braking members 18 may be used. For example, as shown in FIG.
The braking members 18 are provided at every 0 degree, and are simultaneously pressed against the outer peripheral edge of the disk 8, so that the rotation of the disk 8 can be stopped more quickly than in the embodiment of the present invention.

In the above embodiment, the compact disk reproducing apparatus has been described. However, the present invention is not limited to this, and the present invention is also applicable to braking of a grooved disk (so-called LP record) as described in the related art. Is applicable. In this case, for example, the diameter of the turntable in the illustrated conventional technique can be made slightly smaller than the diameter of the grooved disk, and the braking member of the above-described embodiment of the present invention can be provided.

[0051]

As described above, according to the disk recording / reproducing apparatus of the present invention, even if the lid is opened during reproduction, the rotation of the disk can be immediately stopped.
It does not injure the user's finger or hand and does not damage the device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire disc reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a partially enlarged front view showing a lid release lever and its related configuration in FIG.

FIG. 3 is an enlarged sectional view taken along the line [3]-[3] in FIG.

4 is an enlarged cross-sectional view taken along the line [4]-[4] in FIG.

FIG. 5 is a schematic diagram showing a braking mechanism according to the first embodiment of the present invention.

FIG. 6 is a schematic view showing the same operation.

FIG. 7 is an enlarged cross-sectional view of a main part of the braking mechanism, wherein A shows before the lid release lever is operated, and B shows after the lid release lever is operated.

FIG. 8 is a schematic diagram illustrating a braking mechanism according to a second embodiment of the present invention.

FIG. 9 is a schematic diagram illustrating an operation of a braking mechanism according to a second embodiment of the present invention.

FIG. 10 is an enlarged sectional view of a main part of a braking mechanism according to a second embodiment of the present invention, wherein A shows before the lid release lever is operated, and B shows after the lid release lever is operated.

FIG. 11 is a sectional view of a main part of a braking mechanism according to a third embodiment of the present invention.

FIG. 12 is a schematic diagram of a braking mechanism showing a first modification of the embodiment of the present invention.

FIG. 13 is a schematic diagram of a braking mechanism showing a second modification of the embodiment of the present invention.

[Explanation of symbols]

8 Disc, 9 Lid release lever, 18 Braking member, 18a Pad part, 19 First drive lever, 2
0 ... second drive lever, 21, 22 ... guide member, 2
3 ... Torsion coil spring.

Claims (6)

[Claims] 1. A recording / reproducing apparatus comprising: a rotary driving body for locking a disk; a lid member for covering the rotary driving body; and a lid releasing means for moving the lid member from a closed state to an open state. When the lid member is moved to the open state by the operation of the lid releasing means during the operation, the power supply for driving the rotary driving body in conjunction therewith is shut off, and A disc recording / reproducing apparatus, further comprising a braking mechanism for braking the disc at an outer peripheral edge in conjunction with the movement of the lid member to the open state. 2. The disk recording / reproducing apparatus according to claim 1, wherein the braking mechanism includes a pair of braking members disposed to face each other in a radial direction of the disk. 3. The disk recording / reproducing apparatus according to claim 2, wherein the pair of braking members press the outer peripheral portion of the disk in conjunction with the operation of the lid releasing means. . 4. A brake mechanism comprising: a pair of drive levers engaged with the lid releasing means; a pair of guide members for guiding the drive lever so as to move in a radial direction of the disk; 4. A pair of springs for urging the disc in a radial direction of the disc.
Disc recording / reproducing apparatus according to 1. 5. A first drive lever which engages with the lid releasing means, a first guide member which guides the first drive lever so as to move in a radial direction of the disk, the braking mechanism comprises: A first drive lever having one end fixed to the first drive lever
A connecting lever, a second connecting lever pivotally supported at one end at the other end of the first connecting lever, and rotatably supported around a pin fixed to a stationary portion at an intermediate portion; and the second connecting lever. 4. The apparatus according to claim 3, further comprising a second drive lever engaged with the other end of the lever, and a second guide member for guiding the second drive lever so as to move in the radial direction of the disk. Disc recording / reproducing apparatus according to 1. 6. The braking mechanism is connected to a connecting lever fixed to the lid releasing means, and pivotally attached to one end of the connecting lever, and is rotatably supported around a pin fixed to a stationary portion. A first drive lever to which a braking member is attached; an intermediate lever pivotally mounted to the other end of the connecting lever and rotatably supported around a pin fixed to a stationary portion at an intermediate portion; A second driving lever pivotally mounted to the other end and rotatably supported about a pin fixed to the stationary portion and having the braking member attached thereto, and a braking member attached to the first and second driving levers 4. The disc recording / reproducing apparatus according to claim 3, further comprising a pair of springs for urging the disc in a radial direction when the disc is pressed against the outer peripheral edge of the disc.