JPS6080159A - Automatic disk loading device for disk reproducer - Google Patents

Abstract

PURPOSE:To simplify the constitutions of both a timing control system and a driving system for both a tray and a clamper, by using a prescribed cam body to drive the tray and the clamper with a single driving system. CONSTITUTION:A tray 33 having a lifter 41 is driven toward AB by a cam body 115 which is driven by a motor 111. A clamper 34 is supported by a shaft 99 and a cam follower 102 has a touch to the cam part of the body 115. Thus the front edge part of the follower 102 can move up and down. Both the tray 33 and the clamper 34 are driven in the fixed timing by a cam of a proper shape and a gear notched part. When the body 15 is turned toward E in a disk loading mode, the clamper 34 moves up and the tray 33 is opened and moved toward A. Therefore the body 115 is turned toward F after attachment of the disk. Thus the clamper 34 is moved down. In such a constitution, just a single driving system drives both the tray 33 and the clamper 34. Thus the constitution is simplified with a disk reproducer.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc playback device that plays back signals recorded on a disc, and an automatic disc loading device that automatically loads a disc onto a turntable. This not only improves the operability of the device, but also ensures that disks are always installed in a specified procedure, which protects the disks and the device, and also ensures that the disks are always installed accurately in the specified locations. It has the advantage of being possible. From this point of view, in the field of digital audio disk playback devices, which have seen remarkable progress in recent years, automation of disk devices has been carried out in line with the ability to obtain high electrical performance.

Conventionally, an automatic disk loading device for this type of disk playback device generally has the following configuration. First, a tray having a disk mounting section is disposed inside the device main body. The tray is movable between an open position where the disc mount is located outside the device body and a closed position where the disc mount is located inside the device where the turntable is installed. 1. A drive source for driving the tray, such as a motor, for moving the tray between the above-mentioned positions is provided within the main body of the device.

Further, a clamper is provided in the main body of the device, which chucks the disk placed on the disk mounting portion of the tray onto the turntable when the tray is in the closed position. This clamper is driven by a drive source for driving the clamper, such as an electromagnetic solenoid.

To operate the above device, first press the tray opening operation button to start the drive source for driving the tray, pull out the tray from the device body, bring it to the open position, and place the tray on the disk. part outside the device. In this state, the disk is placed on the disk placement section. Next, press the tray closing operation button to bring the tray to the closing position. When the tray is moved to the closed position, a drive source for driving the clamper is started in conjunction with the movement of the tray, and the clamper that was in the standby position moves to chuck the disk onto the turntable. By pressing the Pouilly button, the disc is rotated on the turntable and playback is performed.

By the way, in the above-mentioned automatic disk loading device, the drive system for driving the tray and the clamper is configured as a separate VCl2, so the configuration of the drive system is complicated, and the control system for timing the operation of the tray and clamper is also complicated. There was a drawback that.

This invention was made in consideration of the above-mentioned circumstances, and it is an object of the present invention to provide an automatic disk loading device that can simplify the configuration of the two-timing control system for the drive system of the tray and clamper.
This device is characterized in that both the tray and the clamper are driven by a single cam body.

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

The drawings show one embodiment of the present invention, and in FIGS. 1 to 3, reference numeral 31 is a main body of the device, 32 is a chassis fixed within the main body 31 of the device, and 33 is a tray supported on the chassis 32. , 34 are clampers.

The chassis 32 is a rectangular plate whose front edge is formed on the front panel 35 of the device body 31.
It is arranged in a horizontal state close to the opening part 36. A disk drive motor 37 is mounted on the bottom surface of this chassis 32.
is fixed. The motor 37 is fixed to the chassis 32 with its rotating shaft 38 protruding toward the upper surface of the chassis 32, as shown in FIGS. A table 39 is fixed.

The tray 33 is for transporting the disk 40 between the inside and outside of the device body 31, and has two positions: a closed position shown by a solid line in the figure and an open position where the disk 40 is pulled out of the device body 31 from the opening 36. supported so that it can be moved between This tray 3LK raises the disc 40 when transferring it, and the disc 40 is placed on the turntable 3.
A lifter 41.41 is fitted which lowers the disc onto the turntable 39 when located above the turntable 9. The clamper 34 chucks the disk 40 placed on the tray 33 onto the turntable 39 when the tray 33 is in the closed position.

Details and arrangement of the tray 33 are shown in FIG. 7, FIG.
It is shown in FIGS. 5 to 73. As shown in these figures, the tray 33 is a rectangular plate-shaped body with a constant thickness and a notch 45 formed at the rear. This tray 33 has a top surface of its front half.

A disk mounting portion 4 consisting of a concave portion having a circular shape in plan view on the side.
6 is formed, and notches 47 and 47 are formed on both left and right sides of the disk mounting portion 46. Further, rail portions 49.49 projecting outward are formed at the lower ends of the left and right side wall portions 48,48, respectively. Further, a rack gear 50 is formed on the outer WJK of the right side wall portion 48 from the vicinity of the notch portion 47 to the rear end. Further, on the right side wall portion 48, a protruding portion 51 that protrudes laterally from the tip of the rack gear 50 is formed at the front corner of the tip tooth of the rack gear 50. Note that this protruding portion 51JC will be explained in detail later. Furthermore, the bottom wall portion 5 of the disk mounting portion 46
2 has a notch 53 formed from its center toward the rear. The notch 53 penetrates the peripheral wall 54 of the disk mounting section 46 and opens into the notch 45 . In addition, lifters 41 and 41 are provided on the bottom wall portion 52 and the peripheral wall portion 54.
Holes 55, 55, . . . for arranging the claws are formed.

A decorative plate 57 is fixed to the front surface of the tray 33 formed as described above, and a Kid lifter 41 .
41 is installed. The lifter 41 is a lifter main body 5
8, and claws 59 and 59 that are connected to the front and rear ends of the lid body so as to project laterally. The lifter main body 58 has a long main wall portion 6 on which claws 59 and 59 are connected.
Front wall portion 61. A rear wall portion 62 is connected to the rear wall portion 62, and a shaft 63.64 is formed on the wall portions 61 and 62 and is positioned on the axis passing through the side of the pawl 59.59. The mating protrusion 65 and the suppressed protrusion 6 that protrudes upward
6. Here, the lifters 41 are disposed on the left and right sides of the tray 33, and the structures on the left and right sides are symmetrical.

To explain the additional edition state of the lifter 41 disposed on the right side of the tray 33, as shown in Fig. 1, the lifter 41 positions its claws 59 and 59 in the holes 5 & 55,
The shafts 63 and 64 are connected to the support wall 6 formed on the back surface of the tray 33.
1 which is inserted into the groove 68.68 of 7.67 and extends in the rearward direction of the fMI, and the shaft 6.
4Jd: As shown in FIG. 1 and FIG. 13, the annular plate 72 is fixed to a support 69 formed on the back surface of the tray 33 via a washer 70 and a screw 71. The shaft 63 is also locked in the groove 68 by the same means as described above. The lid 41 attached to the tray 33 in this manner is rotatable about the shaft 63.64, and the upper surface of the claw 59.59 located in the hole 55.55 is located in the same position in the disk mounting portion 46. It is designed so that it can move up and down by moving in and out of the bottom surface 46a of the placing section 46.

In this case, when the claw 59 of the lifter 41 is rotated in the direction of raising it, the pressed protrusion 66 enters into the round hole 74 formed in the upper wall portion 73 of the tray 33, as shown in FIG. It is supposed to be done. The rotation range of the lifter 41 is as follows:
The range is limited to a range from a position where the side end of the main wall portion 62 abuts against a wall portion 76 formed on the tray 33 to a position where the side end of the rear wall portion 62 abuts against the upper wall portion 73 of the tray 33 . The lid 41 is biased by a leaf spring 77 in the direction in which the claw 59 moves upward. That is, as shown in FIGS. 7 and 17, the middle part of a leaf spring 77 is fixed to the back side of the tray 33 with a screw 78, and one end of this leaf spring 77 is formed on the tray 33. When it is engaged with the rib 78, the other end is engaged with the engagement protrusion 65 of the cover 41. With this configuration, the claw 59 of the lifter 41 is always urged to the upper limit position. The above is an explanation of how the lid 41 is installed on the right side of the tray 33, but the lid 41 is installed on the left side and has a similar structure to the tray 33, and is biased by the leaf spring 77. has been done.

Tray 3 with lifter 41, 41 attached as above
3 is placed on the chassis 32 and is movable in the front and rear directions (in the directions of arrows A and B in FIG. 7). The support structure of the tray 33 will be explained as shown in FIG.
As shown in Figures 1 and 2, holes 80 each having a diameter of λ are formed in the left and right sides of the chassis 33, and are located on the passage through which the left and right walls 4B and 48 of the tray 33 move. In addition, a roller support member 81 is provided in the portion where these holes 80 are formed by outsert molding.

A roller 83 is rotatably supported by each roller support member 81 via a shaft 82, respectively. The tray 33 is placed on the rollers 83, 83, . . . so that the lower surfaces of the rail portions 49 at the bottom of the left and right side walls 48, 48 are in contact with the rollers 83, 83, . . . . In addition, holes 84 are formed in the left and right sides of the chassis 32, as shown in FIG. 1, FIG. A guide support column 85 is provided.

The two guide columns 85.85 are located outside the rail portions 49.49 so as to restrict lateral movement of the tray 33. A washer 86 is attached to the upper end of each guide column 85.
is fixed by a screw 87. The washer 86 has its peripheral edge located above the rail portion 49 in order to restrict upward movement of the tray 33. With this configuration, the busy tray 33 can move smoothly in the front and rear directions while making contact with the rollers 83, 83, etc., and is in the closed position shown in the figure (stored in the device main body 31 and in the disk mounting area). the center of the turntable 46 coincides with the center of the turntable 39) and the open position (the position where the center of the disc mounting section 46 coincides with the center of the turntable 39);
(a position exposed to the outside of the device main body 31). In this case turntable 39
As shown in FIG. 2, it protrudes upward from the bottom wall 52 of the tray 33, but because the notch 53 is formed, it does not come into contact with the moving tray 33.

In addition, when the disk 40 is placed on the disk mounting portion 46 of the moving tray 33, the disk 40 is lifted up by the lifter 41 as shown by the two-dot chain line in FIG. In this case, the disc 40 does not come into contact with the turntable 39.

The details and arrangement of the clamper 34 are shown in FIGS. 1-μ and FIG. 7. As shown in these figures, the main body 90 of the clamper 34 is formed into a plate shape, and a hole 91 is formed at the tip thereof. A chuck plate 92 for chucking the disc 40 to the turntable 39Vc is inserted into the hole 91. Chuck plate 9
2 is formed into a disk shape, and a steel ball 93 is integrally fitted into a hole formed in the center of the disk.

This chuck plate 92 is prevented from falling downward by a retaining portion 94 formed on its peripheral portion engaging with a retaining portion 95 formed on the main body 90. A cover plate 96 is provided on the upper surface of the main body 90 so as to cover approximately half of the hole 91.
7.97. With this configuration, the chuck plate 92 cannot be pulled out even upwardly. On the other hand, projecting wall portions 98 are formed at two locations on the left and right on the lower surface of the rear end of the main body 90, and a shaft 99 that projects laterally is formed in the projecting wall portion 98. The shaft 99 is a support part @100 formed on the chassis 32 by outsert molding.
Vc, and is rotatably supported with a support structure similar to the support structure of the shafts 63 and 64 of the lid 41 described above. With this configuration, the cyclamper 34 is rotatable in the direction of the arrow C1D shown in FIGS. 1 and 3. In this case, when the clamper 34 is rotated in the direction of arrow C, the center of the chuck plate 92 is rotated toward the center of the turntable 39. Further, a cam follower 102 is formed on the right side of the tip of the main body 90, and a cam follower 102 is formed at a position a predetermined distance forward from the shaft 99. 103 is formed.

The cam follower 102 has a distal end projecting laterally beyond the outer surface of the side wall 48 of the tray 33, and its vertical position is controlled by a cam body to be described later. When the tray 33 is placed in the closed position, the convex portion 103 engages with a recess 104Vc formed in the upper wall portion 73 of the tray 33 to lock the tray 33 in that position. Furthermore, a suppressing piece 105 is formed on the lower surface of the main body 90, as shown in FIGS. 1 and 7. Otsu's suppression piece 10
5, when the tray 33 is in the closed position, the lifter 41
By pushing the pressed projection 66 downward, the claw 59 of the lifter 41 is placed at the lower limit position shown by the solid line in the figure. As shown in FIG.
It is biased in the direction of arrow C by a coil spring 108 interposed between it and a holder 107 fixed to 2.

The tray 33 and clamper 34 are mounted on a chassis 32Vc.
K is driven by a drive mechanism 110 provided. Details of the driver $110 are shown in FIG. 7 and FIGS. 1≠ to FIG. 17. Chassis 3 as shown
A morph 111 (drive source) for driving the tray clamper is attached to the shaft 1 so as to protrude further upward.
12 to 114 are fixed. The shaft 114 is located on the side of the cam follower 102, and the shaft 114Kt
'i cam break 115 is installed. The rotational force of the motor 111 is applied to a rotary shaft 116 that protrudes above the chassis 32.
from the pinion gear 117 fixed to the shaft 112.113
A drive gear 118 consisting of large and small gears is attached to the drive gear 118.
The signal is transmitted to the cam body 115 via 119. As shown in FIG. IS and FIG.
, and has wall portions 122 and 123 shaped like KIl on the lower surface thereof, and a stone 2 124, and a cam portion 1 on the peripheral edge of the upper surface thereof.
25. At this time, the outer peripheral surface of the wall portion 122 is a gear 126, and this gear 126 meshes with a small gear of the drive gear 119 so that rotational force is transmitted. Further, a gear 128 (pinion gear) is formed on the outer peripheral surface of the wall portion 124 in a range indicated by the reference numeral 127. The portion 129 of this wall portion 124 where the gear 128 is not formed (hereinafter referred to as the notch portion) is formed into a rough surface so that the protruding portion 51 of the tray 33 comes into contact with it with a constant frictional force, as described below. has been done. Here, to explain the positional relationship between the protruding part 51 of the tray 33, the rack gear 50, the gear 128 of the cam body 115, and the notch part 129, as shown in FIG. The tip protrudes laterally by a dimension t1,
When the tray 33 shown in the figure is placed in the closed position @:, this protrusion 51 applies a constant friction force to the notch 129.
is in contact with. When the cam body 115 rotates in the direction of arrow E, when the gear 128 reaches the rack gear 50, they engage, and as the cam body 1150 rotates, the tray 33 is pulled out forward. There is.

The cam portion 125 is an annular wall portion having different heights, and controls the height of the tip of the clamper 34 by driving the cam follower 102.

The height of this cam portion 125 will be explained with reference to FIG. 2J and FIG. Area 1
Reference numeral 32 indicates a slope portion that gradually increases in height in the direction of arrow G, and a region 133 that continues from this slope is a flat portion 13.
The flat portion is higher by the dimension t2 than 1. here,
The cam follower 102 is pressed against the cam portion 125 from above because the clamper 34 is biased by the coil link 10JNC. Therefore, when the cam body 115 rotates, the cam follower 102 moves up and down following the cam portion 125, and the front end side of the clamper 34 moves up and down. Here, when the cam follower 102 comes into contact with the flat part 131 of the cam part 125, the chuck plate 92 of the clamper 34 moves against the disc 4 as shown by the solid line in FIG.
0 on the turntable 39,
When abutting the flat portion 133Vc, the tip of the clamper 34 is placed at the upper limit position shown by the two-dot chain line. The shape of the cam portion 125 and the formation position of the gear recommendation notch portion 129 are determined so that the tray 33 and the clamper 34 are driven at a constant timing. In this case, what is taken into consideration is that the cutout portion 129 is formed to cover at least the area where the slope portion 132 is formed. As a result, the clamper 34
When the tip of the protrusion 51 moves up and down, the protrusion 51
9Vc is brought into contact.

1, the lower surface KFi of the wall portion 124 of the cam body 115
Bins 135 and 136 are formed and Tora's Bin 1
35.136 When the cam body 115 is rotated, it comes into contact with the actuator 7138 of the limit switch 137 mounted on the chassis 32. The limit switch 137 constitutes part of a control circuit that controls the drive of the motor 111, and generates a trigger signal to stop the motor 111.

The above control circuit reversely rotates the cam body 115 to activate the actuator 138 when the actuator 138 contacts the contact point 139 or 140 due to the movement of the bin 135 or 136 with the rotation of the cam body 115 in the directions of arrows E and F. The motor 111 is controlled so that the cam body 115 reaches the neutral position and then the rotation of the cam body 115 is stopped. This control circuit is provided on a printed circuit board 141 disposed on the underside of the motor 37.111 together with a control circuit for controlling the disk drive motor 37. In addition, the cam body 115
The rotation range of the stopper 124 is mechanically limited by contacting the stop bin 142VcP fixed to the chassis 32.

In the above configuration, the control circuit that controls the motor 37.111 is operated by operating various buttons (not shown) such as a tray open button, a tray close button, a play button, and a stop button. .

Next, the operation of the disc playback device configured as described above will be explained.

The positions of the parts shown in solid lines in Figures 1 to io, Figures 1, 16, and 17 are when the tray 33 is housed in the device body 31, that is, when the tray 33 is in the closed position. indicates a certain condition.

In this state, the center of the disk mounting portion 46 of the tray 33 is positioned to coincide with the center of the turntable 39. Then, the clamper 34 is in a state where its tip is lowered by the cam follower 102 coming into contact with the flat part 131 of the cam part 125, the chuck plate 92 comes into contact with the turntable 39, and the pressing piece 105 is brought into contact with the lifter 41.
The pressed protrusion 66 of the tray blade is pressed down, and the convex portion 103 is in a state of being engaged with the concave portion 104 of the tray wing. Here, if the disc 40 has already been inserted into the disc mounting section 46, the chuck plate 92 chucks the disc 40 onto the turntable 39. Also, at this time, the slotted lid 4
1, the claw 59 is placed at the lower limit tK below the disk 40 by pushing the pressed projection 66 downward. Moreover, the tray 33 is locked in that position by the protrusion 103 engaging with the recess 104. Also,
The actuator 138 of the limit switch 137 has contacts 139 and 140 as shown in FIG.
The neutral position between flt and VC is placed.

Here, when a new disc is inserted from the outside of the device body 31 and the disc is to be played back, the tray release button is first pressed to start the motor 111.

The motor 111 has a pinion gear 117 and a drive gear 1.
18. The cam body 115 is rotated in the direction of the arrow E via the shafts 18 and 119. When the cam body 115 rotates in the same direction, the cam follower 102, which had been in contact with the flat part 131, moves to the i-th position.
As shown in FIG. Then, the cam portion 125 of the cam body 115 causes the cam follower 102 to reach the flat portion 133. When the cam follower 102 is raised in this way, the clamper 34 rotates in the direction of the arrow and the chuck plate 92Vc The disk 40 is unzipped, the suppressing piece 105 rises, and the engagement between the convex part 103 and the concave part 104 is released.As the suppressing piece 105 rises, the lifter 41 is pivoted by the force of the leaf spring 770. It rotates about 63 degrees 64, and the pawl 59 rises, which causes the disk 40 to rise as shown by the two dots in the figure.

When the disk 40 is raised to the upper limit position as described above, the gear 128 of the cam body 115 meshes with the rack gear 50 of the tray 33 at this point.

The tray 33 moves forward as the gear 128 of the cam body 115 pushes the rack gear 50 forward, and finally moves by ttt until the disk mounting section 46 is exposed to the outside of the device main body 31.

When moving L/-33, the disk 40 is
By being supported at the upper limit position by the claws 59 of the lifter 41, it can be moved without contacting the turntable 39. When the tray 33 moves to the above position, the cam body 1
No. 15 of the bottle 135 contacts the actuator 138 of the limit switch 137, and the bottle 135 of FIG. 1I (0
)K, the actuator 138 is brought into contact with the contact point 140Kfi as shown by the two-dot chain line. When the actuator 138 comes into contact with the contact 140, the control circuit that includes the actuator 138 and the contact 140 as part of the circuit
1 is reversed, the cam body 115 is slightly rotated in the direction of arrow F, the actuator 138 is returned to the neutral position 1 [K, and the motor 111 is stopped to stop the movement of the cam body 115. In this case, when the tray 33 is pulled out most forward, the stopper 124 of the cam body 115 comes into contact with the stop bin 142, and excessive rotation of the cam body 1150 is mechanically prevented.

Thus, after the tray 33 is pulled out forward as described above, the disk in the tray placement section 46 is replaced with a new disk. Then, push the tray closing portion to bring the tray 33 to the closing position in the reverse order of the above. Immediately after the tray 33 reaches the closed position, the center of the tray mounting section 40 coincides with the center of the turntable 39, and the disk 40 raised by the lifter 41 within the tray mounting section 40 The center also coincides with the center of the turntable 39. From this point on, the cam follower 102 of the clamper 34 moves to the inclined portion 132 of the cam portion 125 and begins to descend. At this time, the protrusion 51 formed on the tray 33 contacts the notch 129 of the cam body 115 with a certain frictional force, and prevents the cam body 115 from being rotated at high speed by the cam follower 102, thereby preventing the generation of impact noise and the disc. 40. Preventing damage to the clamper 34.

That is, when the cam follower 102 descends, the gear 128 of the cam body 115 is disengaged from the rack gear 50, as can be seen from the above description.

On the other hand, the cam follower 102 of the clamper 34 is biased υ by the coil spring 108, so that the cam follower 102 of the clamper 34
It is in strong contact with 32. Here, the cam body 115 is in a state where the direction of rotation of the cam body 1150 which is biased by the cam follower 102 and the direction of rotation of the cam body 115 by the motor 111 match, so that the cam follower 102Fi
The force of the coil spring 108 causes the cam body 115 to move.

While forcibly rotating the inclined part 1 as quickly as possible,
There is a sense of sadness that 3 is descending at high speed. Here, cam body 1
15 has drive gear 118.119 pinion gear 11
7. The motor 111 acts as a load, but as mentioned above, the reverse biasing force of the cam follower 102 and the rotating direction of the motor 111 match, so the above-mentioned load cannot be completely suppressed with only the load. When the force/muffler 102 descends at high speed, the chuck plate 9 of the clamper 34
2 collides with the disc 40, causing the disc to be chucked onto the turntable 39, and the pressing piece 105 also collides with the pressed protrusion 66, causing the convex portion 103 to impactly engage the concave portion 104. I will do it. Therefore, when such a phenomenon occurs, an impact sound is generated and the disk 40 and the clamper 34 may be damaged. In this device, the protrusion 51 formed on the tray 33 is brought into contact with the notch 129, thereby preventing the above-mentioned inconvenience from occurring.

Thus, the cam follower 102 descends smoothly, and the chuck plate 92 slowly descends to chuck the disk 40 onto the turntable 39. At this time, the pressing piece 105 is
Push the pressed projection 66 and rotate the lifter 41 to release the claw 59.
is lowered to bring this pawl 59 to the lower limit position. The disc 40 is transferred from the pawl 59 to the turntable 39, and
It is chucked by a chuck plate 92. Further, at this time, the convex portion 103 engages with the concave portion 104, and the tray 33 is locked so that it cannot be moved. At this point, the cam follower 102 is located on the flat portion 131 of the cam portion 125. Then, the bottle 136 of the cam body 115 comes into contact with the actuator 138KM of the limit switch 137, and this actuator 138
contacts the contact 140 as shown in FIG. 1R (a) K. With this 'i''LK, the control circuit reverses the motor 111, slightly rotates the cam body 115 in the direction of arrow E, and when the actuator 138 is returned to the neutral position, the control circuit rotates the motor 111 in the opposite direction.
Stop 1. In this way, the mounting of the disk 40 is completed.

If you press the play button in this state, the motor 37-AX will rotate and the disc 4 chucked on the turntable 39 will rotate.
0 rotates, and the signals recorded on this disk 40 are reproduced by a signal reproducing device (L&T, not shown).

As described above, the present invention includes a movable tray for transferring a disk and a clamper for chucking the disk, and the disk placed on the tray in the open position is transferred to the turntable by the clamper in the closed position. In a disk mounting device that chucks, the tray and clamper are driven by a single drive system using a cam body, so a control system that takes the timing of the tray, clamper drive system, and the like is required. By simplifying the configuration, effects such as being able to accurately and easily set the operation timing of the tray and clamper can be obtained.

[Brief explanation of the drawing]

FIG. 7 is a plan view of the main parts of a disc playback device to which the present invention is applied, FIG. The figure is an enlarged view of the main part of Fig. 3, Fig. 5 is a sectional view of Fig. 7 v - v @ view, and Fig. 6 is a partially cutaway part of the tray #! Figure 1 is a partially cutaway view of Figure 7 ■-v, Figure 7 is a partially cutaway view of Figure 7 ■-
■The enlarged cross-sectional view taken along the line, the second figure is the enlarged cross-sectional view taken along the line IX-IX of FIG.
) The figure is a bottom view of a part of the tray, and the 7th λ figure is the 1st/Figure 1-x
ll @ cross-sectional view, Figure 13 is an explanatory diagram showing the installation state of the beam lid, Figure 7≠ is Figure 1 x - xw @ cross-sectional view 1j
The figure is an enlarged view of the main part of Fig. 14', Fig. 16 is an enlarged view of the cam body part of Fig. 7, Fig. 77 is an explanatory diagram showing the positional relationship between the cam body, the rack gear, and the protruding part, and Fig. 11' The figure is an explanatory diagram of the operation of the disc playback device. 31... Equipment body, 33... Tray,
34... Clamper, 39... Turntable, 40... Disc, 46...
Disc mounting part, 50...Rack gear, 1oz
...Cam 7 oror, 111... Drive source (motor), 115... Cam body, 125...
...Cam part, 128...Pinion gear.

Claims (2)

[Claims] (1) An open position that has a disc mount and allows you to take the disc in and out of the disc mount; and a closed position in which the disc placed on the 3° disc mount is rotated by a turntable. a tray supported so as to be movable between the tray, a clamper capable of freely chucking the disk placed on the disk mounting section on the turntable when the tray is in the closed position, and a clamper driven by a drive source. An automatic disc loading device for a disc playback device, comprising: a cam body for driving the tray and the clamper. (2) The tray includes a rack gear, the clamper includes a cam follower, and the cam body includes a pinion gear that meshes with the rank gear and a cam portion that abuts the cam follower. The disk reproducing device according to claim 1, wherein the force transmitted to the body is transmitted from the pinion gear to the rack gear and from the cam portion to the cam follower to drive the tray and clamper. Automatic disk loading device of the device.