JPH0296975A - Disk depressing device for disk player - Google Patents

Abstract

PURPOSE:To accurately place a disk on a disk placing plate by coupling a coupling plate with another rotary plate by means of long holes and pins and stretching a spring so that the pins can be abutted with one of the long holes against the another rotary plate and a pressing member can be energized against the upper surface of a disk by means of the spring. CONSTITUTION:1st and 2nd rotary plates 20 and 21 are pivotally supported by the upper surface of the 2nd chassis 19b of a player main body and a roll 20a projecting from the plate 20 is abutted with the cam section 18b of a control cam 18. Springs 22 and 23 are respectively stretched between the plates 20 and 21 and the chassis 19b so that the plates 20 and 21 can be energized to chassis 19 side by the spring. The roll 20a of the 1st rotary plate 20 is abutted with the cam section 18b and one end of a coupling arm 24 which reaches the upper surface of the 1st chassis 19a through the 2nd chassis 19b is pivotally supported by the plate 20. Moreover, a pin 25a which pivotally supports a 3rd rotatable plate 25 on the upper surface of the chassis 19a and protrudes from the side face is inserted into a long hole 24a formed in the other end of the coupling arm 24 and a spring 26 is stretched between the plate 25 and arm 24.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a disc for a disc player for returning a disc clamped by a turntable and a clamper to a normal position on a disc mounting plate (tray) at the end of playback. Regarding a pressing device.

(Prior Art) Conventionally, in a disc player for playing static digital audio discs, video discs, etc., a disc mounting plate on which a disc is mounted is moved to a position facing a turntable, and then, A clamper is rotatably mounted at the tip of the disc, and a rotating plate rotatably supported is rotated to move the clamper toward the disc, lift the disc, and clamp the disc between it and the turntable.

After playing back the clamped disc, the disc is returned to the disc mounting plate by performing a reverse operation to that described above.

By the way, in the operation of returning the disc onto the disc mounting plate as described above, the edge of the disc gets caught on the edge of the disc mounting plate during the return movement of the disc, and there is sticky material attached to the turntable, causing the disc to fall off. Because the clamper may not be able to move away from the turntable, a pressing member is provided to push down the disk at the same time as the clamper moves away from the turntable.

In the past, this push-down member was given a spring force, so that it did not perform any action on the disc at the disc playback position and when it was placed on the disc mounting plate. In addition, when the clamper is separated from the turntable, the spring force of the spring acts to bring the pressing member into contact with the disk.

[Problem to be solved by the invention]

By the way, since the above-mentioned pressing member presses the disk toward the disk mounting plate only by the spring load caused by the spring force of the spring, the disk gets caught on the way down to the disk mounting plate and the load for pushing it down is generated. If the turntable becomes too large, or if there is adhesive on the turntable and the disc is strongly adhered, the problem may be that the disc cannot be placed on the disc mounting plate. occured.

[Purpose of the invention]

The present invention aims to solve the above-mentioned problems, and its purpose is to push down the disk by the spring force of the spring when the disk descends as the clamper retreats, and also to prevent the disk from adhering to the turntable. To provide a disc pressing device for a disc player, which can forcibly push down the disc by the moving force of a pressing member when the disc is pushed down or caught on the way down, thereby surely placing the disc on a disc mounting plate.

[Summary of the Invention] In order to achieve the above-mentioned object, the present invention attaches a pressing member to the tip of another rotating plate that rotates via a connecting plate as the rotating plate rotates, and The plate and another rotary plate are connected by a combination of an elongated hole and a pin, and the bottle contacts one of the elongated holes with respect to the other rotating plate, and the pressing member moves toward the upper surface of the disk. The gist is that the spring is tensioned so that it is spring-biased.

[Embodiments of the Invention] Hereinafter, a case will be described in which the disc pressing device according to the present invention is applied to a vehicle-mounted multi-disc player. 1st
The figure is a perspective view of the entire in-vehicle multi-disc player.

This multi-disc player is located in trunk A of car A.
A player main body B is mounted on the player main body B, and a magazine C is set in the player main body B.

In this magazine C, a plurality of disk mounting plates C1 are connected to a shaft C.
2 is rotatably supported on the case C3, and one disk D is placed on each of the four portions 02' of each disk placement plate C2. In addition, the case C3 of this magazine C has a window C5 formed on the side near the axis C2 described above, and when the magazine C is set in the player body B, the window C5 is opened from the window C5 to the disk mounting plate. By pushing C1 with a lever protruding from the side of the player main body B, the disc mounting plate C1 is rotated and pushed out of the case C3.Furthermore, on the side of the case C3, there is a disc mounting plate set inside the player main body B. An engagement recess C4 is formed for holding in place.

The player body B described above is connected by a cable E to a remote control device F installed on the dash board A2 of the automobile A.

The disc player configured in this way has a magazine C.
is inserted into the player body B, and by operating the remote control device F, the desired disc mounting plate C1 is rotated and pulled out, and the disc D on the disc mounting plate C1 is held by the clamper and played. It is something that

Next, an embodiment of the player body B described above will be described with reference to FIGS. 2 and subsequent figures.

In Figures 2 to 4, 1 and 2 are left and right side plates constituting the frame, and 3 is a magazine holder arranged between the left and right side plates 1 and 2 with slide plates 4 and 5, which will be described later. Guide bins 3a to 3c are formed on the left and right sides. Further, on the lower surface of the magazine holder 3, a magazine push-out arm 6 having a fan-shaped gear portion 6a is pivotally supported at one end and is biased in the magazine push-out direction by a spring 6b.

Furthermore, an upright piece 6c is integrally formed at one end of the gear part 6a of the push-out arm 6, and when the magazine C is inserted through the opening of the magazine holder 3, the upright piece 6c comes into contact with the front surface of the magazine C, causing the magazine In response to the push-in of C, the magazine C is rotated against the spring force of the spring 6b, and the magazine C is inserted and set.

Note that the upright piece 6C faces the flat surface of the magazine C when the magazine C is inserted in the normal direction, so the upright piece 6c slides on the flat surface as the magazine C is pushed. The push-out arm 6 is rotated (
5), when the magazine C is inserted upside down, the upright piece 6c comes into contact with the front step C6 of the magazine C and becomes locked, so the push-out arm 6 cannot rotate and the magazine C (Fig. 6). Therefore, since the magazine C cannot be inserted with the upper and lower surfaces reversed, malfunctions due to incorrect insertion can be prevented.

Further, the gear 6a of the push-out arm 6 is meshed with the gear 7a of the rotary damper 7 attached to the lower surface of the magazine holder 3, and is formed so that the return speed of the push-out arm 6 is slow. is released from the magazine holder 3 slowly.

When the magazine C is inserted and set into the magazine holder 3, an engaging claw is rotatably attached to the side surface of the magazine holder 3 and is always spring-biased in a direction protruding inward from the side surface. The arm 8 is formed to lock the magazine C by engaging with a locking groove C4 formed on the side surface of the magazine C.

Slide plates 4 and 5 interposed between the frame 1 and the magazine holder 3 have stepped cam holes 5a (slide plate 4 has guide pins 3a, 3
There are two cam holes into which b is inserted (not shown)
are formed, and each slide plate 4, 5 is directed to be slidable in the horizontal direction with respect to the left and right side plates 1.2. Further, the guide pins 3a to 3c of the magazine holder 3 pass through the respective cam holes of the slide plates 4 and 5, and pass through the left and right side plates 1.
2 (the slide plate 4 has two vertical holes into which guide pins 3a and 3b are inserted, but they are not shown).

In addition, a rotating plate 9, which is pivotally supported on the outside of the left and right side plates 1 and 2,
The tip of 10 is pivotally supported by the guide pins 3b and 3C,
The guide bins 3b and 3C are constantly biased upward by the spring force of the spring 9a10a stretched at the other end, thereby pushing the magazine holder 3 upward.

Reference numeral 11 denotes an engaging protrusion 4a that is pivotally supported approximately at the center on the upper surface of the magazine holder 3, and has sliding plates 4 and 5 at both ends.

5b, and when one of the slide plates is moved, the other slide plate is moved in the opposite direction at the same speed.

Reference numeral 12 denotes a slide plate driving device for moving the slide plate 5, which is composed of a motor 12a and a reduction gear group 12b, and the final gear meshes with a gear 5c formed on the upper surface of the slide plate 5.

When the motor 12a of the slide plate driving device 12 is driven, the slide plate 5 moves in the horizontal direction via the reduction gear group 12b, so that the guide pin 3C guided by the cam hole 5a of the slide plate 5 Since it is also guided by the vertical hole 2a of the right side plate 2, it moves in the vertical direction. Furthermore, when the slide plate 5 starts to move, the slide plate 4 also moves in the horizontal direction via the synchronization plate 11, although in the opposite direction to the slide plate 5, so that it is guided by the cam hole of the slide plate 4. The guide pins 3a and 3b move up and down in the same manner as described above. Therefore, the magazine holder 3 is moved up and down by the up and down movement of the guide pins 3a to 3c.

The engaging claw arm 8 is engaged with the slide plate 4 when the slide plate 4 finishes moving leftward in FIG. 2 (in this state, the magazine holder 3 has moved to the uppermost position). The formed protrusion 4b pushes the protrusion 8a and rotates it in the direction of the half-hour hand, thereby detaching it from the engagement groove C4 of the magazine C. Therefore, magazine C will be in a free state, so
It is gently discharged by the spring force of the spring 6b of the push-out arm 6.

The above explanation is about setting and ejecting the magazine C into the magazine holder 3, and also about moving the magazine holder 3 up and down.Next, we will pull out the disk D from the magazine C set in the magazine holder 3 and play it. Let's explain the parts.

In FIG. 2, reference numeral 13 denotes a pickup drive device, which is comprised of a pickup drive motor 13a, a threaded rod 13b rotated by the motor 13a, and a pickup 13c that moves as the threaded rod 13b rotates. Further, 14 is a turntable drive motor that drives the turntable 15.

In FIG. 4, a control cam drive motor 16 is fixed to the first chassis 19a and drives a control cam to be described later, and a worm 16 is fixed to the output shaft of the motor 16.
The worm wheel 17 is rotated via a. A small gear 17a formed integrally with the worm wheel 17 is meshed with an internal gear 18a formed on a part of the control cam 18.

The control cam 18 is pivotally supported by a shaft installed in a second chassis 19b that connects the left and right side plates 1 and 2 and fixes the first chassis 19a via a spacer (not shown). A fan-shaped internal gear 18a that meshes with the gear 17a is formed, and a higher cam portion 18b is formed at a position substantially facing the internal gear 18a, and a control protrusion is further provided near the terminal end of the internal gear 18a. Piece 18c is integrally formed.

Reference numerals 20 and 21 denote first and second rotating plates that are rotatably supported on the upper surface of the second chassis 19b.
A roller 2 protruding from the first rotating plate 2° located on the b side
0a is in contact with the cam portion 18b of the control cam 18. Spring 22, 23 is stretched between the first and second rotating plates 20.21 and the second chassis 19b, respectively, and the springs 22 and 23 are attached to the second chassis 19b side. It is strong. Therefore, the roller 20 of the first rotating plate 20
a is pressed against the cam portion 18b. This first rotating plate has a first chassis 19a that passes through the second chassis 19b.
One end of the connecting arm 24 reaching the upper surface of the connecting arm 24 is pivotally supported.

A third rotating pin 25 is rotatably supported on the upper surface of the first chassis 19a, and a pin 25a protruding from the side is inserted into an elongated hole 24a formed at the other end of the connecting arm 24. At the same time, a spring 26 is stretched between the two. The vertical plate portions 2 of the T-shaped disc pressing member 27 made of synthetic resin are provided on both sides of the tip of the third rotary plate 25.
The upper ends of 7a are each pivotally supported. Approximately in the middle of this vertical plate portion 27a, there is a first rotary plate 25 having one end pivotally supported.
One end of the parallel arm 2 is pivotally supported on the chassis 19a, and the tip of the second parallel arm is pivotally supported. Therefore, when the third rotating plate 25 is rotated, the disk pressing member 27 is moved vertically in parallel. Note that the horizontal plate portion 2 of the disk pressing member 27
Although not shown, a cushioning material such as felt is attached to the lower surface of 7b. Further, the vertical plate portion 27a of the disk pressing member 27 comes into contact with a stopper piece 19a' cut and raised from the first chassis 19a, and the amount of descent of the disk pressing member 27 is regulated.

Reference numeral 29 denotes a clamper rotatably supported at the tip of the second rotating plate 21, and 30 indicates a third chassis 19c installed between the left and right side plates 1.2 in the same manner as the second chassis 19b.
Three support columns 30a are formed at intervals of approximately 120 degrees as clamper support members inserted through two guide pins 19d planted in the clamper support member. Since this clamper support member 30 is always biased toward the clamper 29 by a spring 30b inserted into one of the guide bins 19d, the clamper 29 is held in a horizontal state by the three support columns 30a. (See Figure 7).

When the control cam 18 is rotated by the motor 16 and the roller 20a of the first rotating plate 20 is separated from the cam portion 18b of the control gum 18, the first rotating plate 20 is rotated by the spring force of the spring 22. The clamper 29
moves to the turntable 15 side and clamps the disc D. During this movement of the clamper 29, the clamper support member 30 is moved to the clamper 29 by the spring 30b.
Since the clamper support member 30 is biased toward the side by a spring, as the clamper 29 moves, the clamper support member 30 also moves while in contact with the clamper 29, and the clamper 29 clamps the disk D between it and the turntable 15. Hold it in a horizontal position until just before. Therefore, since the clamper 29 is accurately inserted into the hole of the disk D, it is possible to clamp the disk D without eccentricity between the disk D and the turntable 15.

Further, when the first rotating plate 20 is rotated, the second rotating plate 21 is also rotated by the spring force of the spring 23, so the third rotating plate 25 is rotated via the connecting plate 24. Rotated.

Along with this rotation, the disk pressing member 27 is pressed against the parallel arm 2.
The clamper 2 moves in parallel and rises depending on the day.
9, the disk D is held in a parallel state between the upper surface of the clamper 29 and the horizontal plate portion 27b of the disk pressing member 27, and is moved toward the turntable 15. Therefore, disk D
can be clamped between the turntable 15 and the clamper 29 in a horizontal state (see Fig. 8).
.

Further, when the disk D is returned to the disk mounting plate C1, the rotary plate 20 rotates counterclockwise to lower the disk D. However, when the disk D gets caught in the middle and cannot be lowered completely, the disk pressing plate 27 is forced to move. In order to push down the disk D, the long hole 24a of the connecting arm 24 comes into contact with the bin 25a when the rotary plate 20 is in the lowered position.

31 is an upper slide plate attached to the second chassis 19b so as to be freely movable in parallel; 32 is a lower slide plate attached to the temporary upper slide 31 so as to be movable in parallel;
A spring 33 is stretched between the two, and the lower slide plate 3
2 moves, the upper slide plate 31 also moves together. And the long hole 32 of the lower slide plate 32
The control protrusion 18c of the control cam 18 is engaged with a, and when the control cam 18 rotates, the lower slide plate 32 moves, and accordingly, the upper slide plate 31 also moves in the same direction by the spring force of the spring 33. It is something to do.

The second chassis 19b also includes a position detection switch 31 that is turned on and off by the movement of the upper slide plate 31.
~ A standby position where S3 is attached and the upper slide plate 31 does not push out the disk mounting plate C1 from the position magazine C shown in FIGS. 2 and 4 (position shown in FIGS. 2 and 4)
, all the position detection switches 81 to S3 are turned on, and the disk mounting plate C1 is pushed out from the magazine C by the push-out arm 34, which will be described later, and the disc D on the disk mounting plate C1 is moved to the turntable 15. When in the playback standby position that has reached the position, the position detection switch S1
When and 82 are in the off state and the disc D is in the position where it is clamped by the turntable 15 and the clamper 29,
Each position detection switch S! so that all the position detection switches 81 to S3 are in the off state. ~S3 is arranged.

34 is approximately C rotatably supported by the second chassis 19b.
It is a letter-shaped extrusion arm, and one end 34a is attached to the upper slide plate 3.
1 and when the upper slide plate 31 moves, the push-out arm 34 rotates, and the other end 34b enters the hole C5 of the magazine C inserted into the magazine holder 3 and pushes the disk mounting plate C1. The operation is performed by rotating the case C3 and pushing it out of the case C3. At this time, the center position of the disk mounting plate C1 is rotated extra so that the center position of the turntable 15 is located in front of the center position of the turntable 15 in the extrusion direction. When the disk D is lowered by the retreat of the clamper 29, the disk D is placed on the disk mounting plate C.
It is placed in front of the return direction of t (see solid line in Figure 12).
.

Then, when the upper slide plate 31 moves in the opposite direction, the pushed-out disk mounting plate C1 is pushed back by the side surface that is engaged with the upper slide 31, and the disk mounting plate C1 is moved into the case C3. It will be stored. When this disc mounting plate C1 is stored in the case C3, the disc D that has climbed onto the edge of the disc mounting plate C1 comes into contact with the opening of the case C3, and the disc 'u' is placed in the recess C1' of the mounting plate C1. Since it is returned, the disk mounting plate C5 is reliably stored (see the two-dot chain line in FIG. 12).

In addition, the upper and lower sliding plates 31 and 32 are divided into two pieces.
By allowing only the lower slide plate 32 to move even after the upper slide plate 31 finishes pushing out the disk mounting plate C1, the control cam 18 can be rotated extra. This is to ensure that the movable plate 20 is rotated extra and the horizontal plate portion 27b of the disk pressing member 27 is completely separated from the disk D clamped by the turntable 15 and the clamper 29.

Reference numeral 35 denotes the second chassis 19b at the most extreme position of the disk D placed on the pushed-out disk mounting plate C1.
A synthetic resin disk return guide fixed to the
A tapered part 35a is formed on the upper surface, and the tapered part 35a has a shape that is set back from the leading edge of the disc D that is accurately placed on the disc mounting plate C1. A vertical portion 35b is formed in a shape that matches the leading edge of the disk D placed on the disk D (eighth point).
(See Figure 9).

Therefore, if the disc D which is being pushed up by the clamper 29 and is in the reproducing state is displaced due to external vibrations etc. as shown in FIG. The tapered portion 35a returns the disk to the normal position of the disk mounting+HCs, and the vertical portion 35b holds the disk at the normal position.

36 is rotatably attached to the second chassis 19b at two locations: the extruded tip of the disk placement plate C1 in the extrusion direction, and the most extreme end of the disk placement plate C1 through an interval of approximately 90 degrees from this tip. A pair of pivotally supported disc return arms each have a spring 37 attached to the second chassis 19.
b, and is spring-biased in the counterclockwise direction in FIG. Two protrusions 36a and 36b are formed on each of the disc return arms 36, and the protrusion 36a on the side closer to the rotational fulcrum is used to hold the disc mounting plate CI in a state where the disc mounting plate C1 is completely pushed out. Projection C1'
It is formed so as to come into contact with. Then, when the disk mounting plate C1 that has been completely pushed out is rotated to be stored in the case C3, the protrusion 36a of the disk return arm 36 that has been in contact with the disc mounting plate C1 is moved from the protrusion C1 on the disk mounting plate C1. Since the disk return arms 36 are moved further apart, the disk return arms 36 are respectively rotated counterclockwise by the spring force of the springs 37. Therefore, the other protrusion 3 of the disk return arm 36
6b moves to the disk placement plate C1 side, and the disk D (which is not placed in the disk placement plate C1 in a normal state)
The device is placed in a normal state by pressing the sides indicated by the one-dot chain line and two-dot chain line in Fig. 9.

Note that the disk return arm 36 is regulated by a stopper 38 attached to the second chassis 19b so that it does not rotate more than necessary due to the spring force of the spring 37.

Next, the overall operation will be explained based on the above configuration.

First, when magazine C is inserted into magazine holder 3,
The pushing arm 6 is rotated by the front surface of the magazine C, and the engaging claw arm 8 is engaged with the locking groove 04 of the magazine C at the rotation end position of the pushing arm 6 to lock the magazine C.

In this state, when the remote control device F is operated to select the disc D desired to be played, the motor 12 is driven and the slide plate 5 is moved. As the slide plate 5 moves, the slide plate 4 also moves via the synchronizing plate 11, so the magazine holder 3 moves up and down guided by cam holes formed in each slide plate 4. The disk mounting plate C1 on which the disk D is placed is pushed out by the push-out arm 34.
It stops when it comes to a position facing the

Next, the motor 16 is rotated to rotate the control cam 18, so the upper and lower slide plates 31 and 32 move to rotate the push-out arm 34 and push out the disk mounting plate C1 on which the desired disk D is mounted. With the hole of the disc D positioned on the turntable 15, move the vertical slide plate 31.
32 stops moving.

Furthermore, since the motor 16 continues to rotate in this state, the control cam 18 further rotates, and the roller 20a of the first rotating plate 20 separates from the cam part 18b, so the clamper 29 moves toward the turntable 15. Clamp disk D. During this movement of the clamper 29, the clamper support member 30 holds the clamper 29 in a horizontal state until just before it clamps the disk D between it and the turntable 15. Further, when the first rotating plate 20 is rotated, the second rotating plate 21 is also rotated, so the third rotating plate 25 is rotated via the connecting plate 24, and the disk pressing member 2
7 is moved in parallel and raised, and the disk D is pushed up by the clamper 29 and comes into contact with the upper surface of the moving disk D.
is held in a parallel state between the upper surface of the clamper 29 and the disk pressing member 27 and moved toward the turntable 15.

Therefore, the disk D is clamped between the turntable 15 and the clamper 29 in a horizontal state.

Next, when the disk D is clamped, the motor 13a
rotates and moves the pickup 13c, so that reproduction is started.

In addition, in this playback state, that is, in a state in which the disc D is clamped by the turntable 15 and the clamper 29, the remote control device F can switch the mode from the playback state to the radio reception state, or turn off the ignition key. In such a case, the disk D will remain clamped.

If the disc D is left clamped for a long time, if the player body B is used in a car, the outer periphery of the disc D may sag due to solar heat etc., making playback impossible, or if the disc D is a single CD. In such cases, problems arise such as the adapter attached to the outer periphery of the adapter falling due to vibrations of the vehicle and becoming impossible to remove.

Therefore, the present invention switches the mode of the remote control device F when the three switches S1 to S3 controlled on/off by the upper slide plate 31 are all off, or when the ignition switch is turned off, the remote control The motor 16 is reversely rotated in response to a command signal from the control device F, and the control cam 18 is reversely rotated, so that the vertical slide plate 31.
Move 32. Then, the upper slide plate 31 is the second
When the third switches S2 and S3 are turned on, the remote control device F stops the rotation of the motor 16. These second and third switches s2. Since the state in which s3 is on is the state in which the clamper 29 is lowered as described above (FIG. 7), the disk D is returned to the disk mounting plate C1, and the above-mentioned problem is solved. .

When the playback is completed, the disk D is returned to the disk mounting plate C1 by an operation opposite to that described above, and the disk mounting plate C1 is housed in the case C3 of the magazine C, and the remote control device F The magazine holder 3 moves up and down again based on the command from the user, and the above-described operation is repeated.

〔Effect of the invention〕

As described above, in the present invention, the pressing member is moved in synchronization with the movement of the clamper, and the pressing member is brought into contact with the upper surface of the disk by the force of the spring, so that the disk is in a normal state. When the disc is lowered onto the disc mounting plate, the pressing member presses against the disc by the spring force of the spring, and if the disc is glued to the turntable or caught on the way down, the pressing member presses the clamper. Since the moving force presses the disk, it has the effect of ensuring that the disk is returned onto the disk mounting plate no matter what state it is in.

[Brief explanation of drawings]

Figure 1 is an overall perspective view when installed in a vehicle, Figure 2 is a plan view of the player body, Figure 3 is a side view, Figure 4 is a back view, and Figure 5 is a plan view of the magazine holder part. , Figure 6 is a plan view of the same as above when the magazine is inserted incorrectly, Figure 7 is a side view of the clamper section, Figure 8 is a side view of the same as above when the disk is clamped, and Figure 9 is a side view of the same as above when the disk is pushed out. FIG. 10 is a side view of the disk return guide section in the same state as above, and FIG. 11 is a side view of the disk return arm section in FIG. 9. FIG. 12 is an explanatory diagram showing the positional relationship between the digital mounting plate and the turntable. B...Player body, C...Magazine, C1...
Magazine mounting plate, D... Disc, 3... Magazine holder, 4.5... Slide plate, 6... Extrusion arm, 13... Pick up drive device, 13c...
Pickup, 15... Turntable, 18...
ftdl? Wholesale cam, 20°21.25...1st to 3rd
rotating plate, 27... disk pressing member, 29... clamper, 30... clamper support member, 31.32...
・Vertical slide plate, 34... Extrusion arm, 35...
Disk return guide, 36...disk return arm,
81 to S3...first to third position detection switches. ~O/

Claims (1)

[Claims] By rotating the rotary plate, the clamper approaches the turntable via the disk and clamps the disk, and as the clamper moves away from the turntable, it comes into contact with the upper surface of the disk. , in a disc player configured to push down the disc, a pressing member is attached to the tip of another rotating plate that rotates via a connecting plate as the rotating plate rotates, and the pressing member is attached to the tip of the other rotating plate, and A rotary plate is connected to the rotary plate by a combination of an elongated hole and a pin, and the pin abuts one of the elongated holes with respect to the other rotary plate, and the pressing member is spring-biased toward the upper surface of the disk. 1. A push-down device for a disc player, characterized in that a spring is tensioned so that the push-down device