JP2003168281A - Information processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To regulate the moving range of a pickup without the vertical movement of the pickup in a playback device for handling both CDs and MDs with a single pickup. <P>SOLUTION: A turntable 6 moves to a direction orthogonal to the surfaces of the CD and MD, and keeps the distance from the CD and MD to a pickup 7 identical. The turntable 6 is moved up and down by a first slider 31 and a second slider 32. The first slider 31 and the second slider 32 move along the moving direction of the pickup 7. The first slider 31 is provided with an outer stopper part 31b which regulates the moving range of the pickup 7 to the direction of an outer circumferential part of the CD and MD, and the second slider 32 is provided with an inner stopper part 32b which regulates the moving range of the pickup 7 to the direction of the inner circumference of the CD and MD. The movement of the turntable 6 and the movement of the outer stopper part 31b and the inner side stopper part 32b are synchronized. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention selectively sets either a first recording medium made of a disc-shaped disc or a second recording medium made of a disc having a diameter smaller than that of the first recording medium. The present invention relates to an information processing device that processes information. Specifically, the position of the turntable that selectively holds and rotates the first recording medium or the second recording medium is changed from the position where the first recording medium is held and rotated to
The pickup is moved in a direction perpendicular to the surfaces of the recording medium by moving the second recording medium in a direction perpendicular to the surfaces of the first recording medium and the second recording medium to a position where the second recording medium is held and rotated. It is possible to process a recording medium having a different shape without a need.

[0002]

2. Description of the Related Art For example, there is an information processing apparatus in which a CD (compact disc) as a recording medium is set and music can be reproduced. In particular, there is a so-called portable CD player as a portable information processing device.

In addition, there is an information processing apparatus in which an MD (mini disk) as a recording medium is set and music can be reproduced or both reproduction and recording can be performed. In particular, as a portable information processing device, there is a so-called portable MD player or portable MD recorder (hereinafter, both are collectively referred to as a portable MD player).

Conventionally, a portable CD player has an MD
Cannot be set, and a CD cannot be set in a portable MD player. For this reason, for example, a CD when going out
If it is desired to use both the MD and the MD, it is necessary to carry both the portable CD player and the portable MD player.

[0005]

However, it is inconvenient to carry both a portable CD player and a portable MD player. Further, when considering a device in which a portable CD player and a portable MD player are integrated, it is possible to share the pickup, but since the movement range of the pickup is different between the CD and the MD, the movement range of the pickup includes both. It must be taken care of. For this reason,
For example, there is a possibility that the pickup may be moved to a position where there is no CD or a position where there is no MD due to an inadvertent force applied from the outside.

If the heights of the CD and MD disks are not the same, it is necessary to move the pickup up and down, but the structure and operation become complicated.

The present invention has been made in order to solve such a problem, and it is possible to read information from a recording medium having a different shape without moving the pickup up and down. Accordingly, it is an object of the present invention to provide an information processing device capable of restricting the movement range of a pickup.

[0008]

In order to solve the above-mentioned problems, an information processing apparatus according to the present invention comprises a first holding section for holding a first recording medium composed of a disc-shaped disc. A second holding unit for holding a second recording medium formed of a disc having a diameter smaller than that of the first recording medium, and the second holding unit for holding the second recording medium with respect to the first holding unit. A turntable that is provided with different positions in a direction orthogonal to the plane, holds either the first recording medium or the second recording medium, and rotationally drives this, and the turntable is the first recording medium. A turntable moving means for moving the first recording medium or the second recording medium in a direction perpendicular to the surface of the first recording medium or the second recording medium from a position where the second recording medium is held and rotated to a position where the second recording medium is held and rotated; 1
And a pickup which moves in the direction along the surface of the recording medium or the second recording medium and at least reads information from the first recording medium or the second recording medium.

In the above information processing apparatus according to the present invention,
By changing the height of the turntable, when the turntable holds and rotates the first recording medium,
When the recording medium is held and rotated, the distance from the pickup to the first recording medium or the second recording medium is the same. As a result, it is not necessary to move the pickup up and down, and the structure can be simplified.

By providing a stopper portion for restricting the movement range of the pickup and a stopper portion moving means for moving the stopper portion along the movement direction of the pickup, the movement range of the pickup is adjusted to the shape of the recording medium. Can be regulated.

Further, in association with the movement of the turntable, the regulation of the movement range of the pickup is switched to the movement range corresponding to the first recording medium or the movement range corresponding to the second recording medium, thereby setting. The moving range can be reliably regulated according to the recording medium used.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of an information processing apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the overall configuration of the information processing apparatus according to the present embodiment. The information processing apparatus 1 according to the present embodiment has a structure in which a lid 3 can be opened and closed with respect to a main body 2. The main body 2 includes a CD (compact disc) 4 or a second recording medium, which is a first recording medium.
A turntable 6 for rotationally driving an MD (mini disk) 5 which is a recording medium, a pickup 7 for reading and writing information, and the like.

The lid 3 is provided with an MD holder 8 for holding the MD 5 so as to be openable and closable, and an MD detection lever (not shown in FIG. 1) which will be described later for detecting whether or not the MD 5 is inserted. MD by this MD detection lever
The MD holder 8 is opened / closed, the turntable 6 is moved, and the pickup 7 is moved in a restricted range depending on whether or not the sensor 5 is detected and the lid 3 is opened / closed.

A CD held on the turntable 6
An evacuation space 9 is formed on the side of the MD 4 and the MD holder 8 is housed in the evacuation space 9. As is well known,
The CD4 is a disc-shaped disc, and the MD5 is a disc 5a having a diameter smaller than that of the CD4 housed in a package 5b.

[Structure of Lid Section] First, the lid section 3 in the information processing apparatus 1 of the present embodiment will be described. FIG. 2 is a plan view showing the internal structure of the lid portion 3 of the information processing device 1 according to the present embodiment. FIG. 2 shows a state in which the lid portion 3 is open as shown in FIG. The lid portion 3 is, for example, a metal upper plate 10 provided in a resin casing, and various components are attached to the upper plate 10. In addition,
In FIG. 2, the upper plate 10 is shown by a chain double-dashed line.

The MD holder 8 is attached to one surface of the upper plate 10, here the lower surface side, and is composed of a right holder 11 and a left holder 12. The right holder 11 and the left holder 12 are attached to the upper plate 10 so that they can move in parallel in a direction in which they approach each other and a direction in which they move away from each other.

That is, the upper plate 10 is provided with a plurality of parallel guide holes 10a extending along the moving direction of the right holder 11 and the left holder 12, and one of the right holder 11 and the left holder 12 is formed. A plurality of guide pins 13 that enter these guide holes 10a are provided on the surface, here the upper surface. As a result, the right holder 11 and the left holder 12 are connected to each other by the upper plate 1.
Translate in the direction of approaching and separating from each other along the 0 plane. The moving range of the right holder 11 and the left holder 12 is regulated by the guide hole 10a.

FIG. 3 is an explanatory view showing the structure of the MD holder 8, and FIG. 3A shows the right holder 11 and the left holder 12.
3B is a plan view of the right holder 11 as viewed from the lower surface side.
It is the top view which looked at the left holder 12 from the arrow direction.

A right holding portion 14 for holding the MD 5 is formed at one side end of the right holder 11. This right holding portion 14
Is a side wall portion 14a and M for restricting the lateral position of MD5.
It is composed of a bottom surface portion 14b that holds D5. Also,
The bottom surface portion 14b is formed with, for example, an arc-shaped notch 14c for retracting the CD 4 when the lid portion 3 is closed without setting the MD 5 as described later. The sidewall 14a is provided with a protrusion (not shown) that opens and closes the lid of the MD5.

A left holding portion 15 for holding the MD 5 is formed at one side end of the left holder 12 so as to face the right holding portion 14. The left holding portion 15 includes a side wall portion 15a that regulates the lateral position of the MD5 and a bottom surface portion 1 that holds the MD5.
5b and. In addition, C is formed on the bottom surface portion 15b.
For example, an arc-shaped cutout 15c for retracting D4
Is formed.

The right holder 11 includes the right holder 11
A rack gear 11a is provided that extends along the moving direction of. The left holder 12 is provided with a rack gear 12a extending in the moving direction of the left holder 12 and at a position facing the rack gear 11a of the right holder 11. Further, the left holder 12 is provided with an opening 12b for projecting an MD detecting claw described later.

Returning to FIG. 2, the mechanism for transmitting the driving force for opening and closing the right holder 11 and the left holder 12 will be described. Right holder 11 and left holder 12
Is opened and closed in conjunction with each other by the first two-stage gear 16 and the second two-stage gear 17.

The first two-stage gear 16 is composed of a large gear 16a and a small gear 16b, and the small gear 16b projects on the upper surface and the lower surface of the upper plate 10, respectively.
It is rotatably attached so that a is located on the lower surface side of the upper plate 10.

Similarly, the second two-stage gear 17 also has a large gear 17
a and a small gear 17b, the upper plate 1
It is rotatably attached to the lower surface of 0. The large gear 16a of the first two-stage gear 16 and the large gear 17a of the second two-stage gear 17 have the same module and the same number of teeth. Similarly, the small gear 16b of the first two-stage gear 16 and the small gear 17b of the second two-stage gear 17 have the same module and the same number of teeth.

The rack gear 11a of the right holder 11 is the upper plate 1 of the small gear 16b of the first two-stage gear 16.
No. 0 and the second two-stage gear 1
It meshes with the 7 small gear 17b. On the other hand, the rack gear 12a of the left holder 12 meshes with the large gear 16a of the first two-stage gear 16 and the large gear 17a of the second two-stage gear 17.

As a result, when the first two-stage gear 16 and the second two-stage gear 17 make one rotation, the moving amounts of the right holder 11 and the left holder 12 are different, and the moving amount of the left holder 12 is larger. I am doing it.

Here, the second two-stage gear 17 always meshes with both the rack gear 11a of the right holder 11 and the rack gear 12a of the left holder 12 regardless of the positions of the right holder 11 and the left holder 12. On the other hand, the first two-stage gear 16 includes the right holder 11 and the left holder 12
Depending on the position, the rack gear 11a of the right holder 11 and at least one of the rack gears 12a of the left holder 12 always mesh with each other.

The driving force for opening and closing the right holder 11 and the left holder 12 is transmitted to the first two-stage gear 16. A first idle gear 18 and a second idle gear 19 are provided to transmit the driving force to the first two-stage gear 16. Further, a transmission switching arm 20 and a transmission switching gear 21 are provided to switch the presence / absence of transmission of the driving force.

The first idle gear 18 is composed of one large gear and is rotatably attached to the upper surface of the upper plate 10. The first idle gear 18 meshes with a portion of the small gear 16b of the first two-stage gear 16 that projects to the upper surface side of the upper plate 10. The second idle gear 19 is composed of a large gear 19a and a small gear 19b, and is rotatably attached to the upper surface side of the upper plate 10. The large gear 19a of the second idle gear 19
Meshes with the first idle gear 18.

The transmission switching arm 20 is the upper plate 1
Is provided on the lower side of the second idle gear 19 on the upper surface of 0,
It rotates around the shaft 19c of the second idle gear 19.
A transmission switching gear 21 is attached to one end of the transmission switching arm 20 with the shaft 19c interposed therebetween. The transmission switching gear 21 is composed of a large gear 21a and a small gear 21b, and meshes with the large gear 21a of the transmission switching gear 21 and the small gear 19b of the second idle gear 19. Transmission switching gear 21
As described above, the shaft 19c of the second idle gear 19 is
Since the transmission switching arm 21 is attached to the transmission switching arm 20 that rotates about the fulcrum, the center of the transmission switching gear 21 is displaced while the meshing with the second idle gear 19 is maintained by the rotation of the transmission switching arm 20.

At one side edge of the upper plate 10,
A holder opening / closing slider 22 having a rack gear 22a that meshes with the large gear 21a of the transmission switching gear 21 is provided. The holder opening / closing slider 22 is attached to the upper plate 10 so as to be movable in the insertion / removal direction of the MD 5.

Then, by rotating the transmission switching arm 20 about the shaft 19c as a fulcrum, the rack gear 22a of the holder opening / closing slider 22 and the transmission switching gear 21 are engaged and released. The holder opening / closing slider 22 moves by opening / closing the lid portion 3, the configuration of which will be described later.

The rotation of the transmission switching arm 20 is performed by the MD detection lever 23. The MD detection lever 23 is attached to the upper surface of the upper plate 10 so as to be rotatable around a shaft 23a as a fulcrum, and is rotated by inserting the MD5 into an MD holder 8 constituted by a right holder 11 and a left holder 12.

The MD detection lever 23 has an M
MD detection claw 2 for detecting the insertion of MD5 into the D holder 8
3b, a holder regulation arm 23c that regulates the movement of the right holder 11 and the left holder 12, and a transmission switching arm 20.
A holder opening / closing drive force switching portion 23d for rotating the turntable 6 and a turntable switching portion 23e for switching the presence / absence of movement of the turntable 6 shown in FIG. 1 are provided.

The spring 24 has one end fixed to the upper plate 10 and the other end fixed to the MD detection lever 23.
The detection lever 23 is applied with a force that rotates about the shaft 23a in the direction indicated by the arrow a1. The rotation range of the MD detection lever 23 is restricted by the spring 24 by a stopper 10b provided on the upper plate 10. Here, the initial position of the MD detection lever 23 is in a state of hitting the stopper 10b.

Then, with the MD detection lever 23 in the initial position, the position where the right holder 11 and the left holder 12 hold the MD 5 shown in FIG.
It is called a position. ), The MD detection claw 23b projects into the left holder 12. That is, the MD detection claw 2
3 b projects from the opening (not shown) provided in the upper plate 10 and the opening 12 formed in the left holder 12 in the vicinity of the side wall portion 15 a of the left holding portion 15 shown in FIG. 3.

The holder regulating arm 23c is guided by the guide hole 10a provided in the upper plate 10 by the rotation around the shaft 23a of the MD detection lever 23, and is moved by the guide pin 13 (a) of the left holder 12. It moves from the position retracted from the moving route to the position blocking this moving route.

The holder opening / closing drive force switching portion 23d is
It is an elongated hole having a shape substantially along a part of an arc centered on the shaft 23a of the detection lever 23, and the distance from the shaft 23a is different between one end portion and the other end portion.

A pin 20a provided at the other end of the transmission switching arm 20 sandwiching the shaft 19c of the transmission switching arm 20 is inserted into the holder opening / closing driving force switching portion 23d, and the MD detection lever 2
The pin 20a is guided by the holder opening / closing drive force switching portion 23d by the rotation around the shaft 23a of No. 3. As a result, the distance of the pin 20a from the shaft 23a is changed by the rotation of the MD detection lever about the shaft 23a, and the position of the pin 20a is displaced, so that the transmission switching arm 20 rotates about the shaft 19c. To do.

The turntable switching section 23e is provided with a shaft 23a of the MD detection lever 23 by inserting / removing the MD5 which will be described later.
The rotation around the position moves from a position that closes a part of the open groove 10c provided on one side of the upper plate 10 to a position that retracts from the groove 10c.

The MD eject lever 25 is attached to the upper surface of the upper plate 10 so as to be rotatable about the shaft 25a. An MD locking portion 25b is provided at one end of the MD eject lever 25 with the shaft 25a interposed therebetween, and a lever locking pin 25c is provided at the other end. The MD locking portion 25b is provided on the upper plate 10
On the lower surface side of the upper plate 10 with respect to the opening 10d provided in the above, it projects into the insertion / removal path of the MD 5 guided by the MD holder 8.

One end of the spring 26 is fixed to the upper plate 10 and the other end thereof is fixed to the MD eject lever 25. The spring 26 causes the MD eject lever 25 to center around the shaft 25a as indicated by an arrow b1. A force is applied to rotate the MD5 set in the MD holder 8 in the direction indicated by the arrow, that is, in the direction in which the MD locking portion 25b pushes out the MD5. In addition, MD by the spring 26
The rotation range of the eject lever 25 is restricted by the opening 10
This is performed by abutting the MD locking portion 25b on d. Here, the initial position of the MD eject lever 25 is
It is in a state of hitting one end of the opening 10d.

The eject opening / closing lever 27 is attached to the upper surface of the upper plate 10 so as to be rotatable about the shaft 27a. The one end of the eject opening / closing lever 27 with the shaft 27a sandwiched therebetween has a riding pawl 27 that abuts a riding projection 22b of the holder opening / closing slider 22.
b is provided, and the MD eject lever 2 is provided at the other end.
A cam surface 27c for restricting the rotation of 5 is provided.

The spring 28 has one end fixed to the upper plate 10 and the other end fixed to the eject opening / closing lever 27. The spring 28 causes the eject opening / closing lever 27 to center around the shaft 27a as indicated by the arrow c1. A force that rotates in the direction indicated by is applied. The rotation range of the eject opening / closing lever 27 is regulated by the spring 28 by a stopper 10e provided on the upper plate 10. Here, the initial position of the eject opening / closing lever 27 is in a state of hitting the stopper 10e.

The reversing spring 29 is a torsion coil spring having arms 29b protruding from both ends of the coil 29a.
One arm 29b is the guide pin 13 of the left holder 12
(B), and the other arm 29b is fitted to the pin 10f provided on the upper plate 10.

When the right holder 11 and the left holder 12 are in the MD position, the reversing spring 29 is pulled by the coil portion 29a due to the force of expanding the left holder 12 and the left holder 12.
Is generated in the direction of the arrow d1 which is the closing direction for moving the right holder 11 toward the right holder 11. Right holder 11 and left holder 12
Are linked by the second two-stage gear 17, and the left holder 1
When 2 moves in the direction of the arrow d1, the right holder 11 moves in the opposite direction of the arrow e1. Therefore, the right holder 11 also receives a pushing force in the direction of the arrow e1 which is the closing direction.

Backlash is required between the first two-stage gear 16 and the second two-stage gear 17 and the rack gear 11a of the right holder 11 and the rack gear 12a of the left holder 12, and the first two-stage gear is required. The right holder 11 and the left holder 12 with respect to the gear 16 and the second two-stage gear 17
It is unavoidable that there is rattling. Therefore, by providing the reversing spring 29, it is possible to cancel backlash due to backlash.

[Structure of Main Body] Next, the main body 2 in the information processing apparatus 1 of the present embodiment shown in FIG. 1 will be described. FIG. 4 is a plan view showing the internal structure of the main body of the information processing apparatus of this embodiment. The main body 2 is, for example, a metal lower plate 30 provided in a resin casing, and various components are attached to the lower plate 30. The lower plate 30 is indicated by a chain double-dashed line in FIG.

A first slider 31 and a second slider 32 are attached to one surface of the lower plate 30, here the lower surface. The first slider 31 is provided with a plurality of guide holes 31a extending along the moving direction thereof, and the guide pins 30a provided on the lower surface of the lower plate 30 are inserted into these guide holes 31a. This allows
The first slider 31 is guided by the guide pin 30 a and slides along the surface of the lower plate 30.

The second slider 32 is provided with a plurality of guide holes 32a extending along the moving direction thereof, and the guide pins 30a provided on the lower surface of the lower plate 30 are inserted into these guide holes 32a. As a result, the second slider 32 is guided by the guide pin 30a and slides along the surface of the lower plate 30.

FIG. 5 is a perspective view showing the structure of the main part of the main body 2. First, the details of the structure of the first slider 31 and the second slider 32 and the driving thereof will be described with reference to FIGS. 4 and 5. The mechanism will be described.

An outer stopper portion 31b for restricting the movement range of the pickup 7 is formed at one end portion of the first slider 31 along the movement direction thereof. Further, a rack gear 31c extending along the moving direction of the first slider 31 is provided on the other end side of the first slider 31.

Further, the side plate formed by bending the side portion of the first slider 31 has a cam hole 31 extending along the moving direction of the first slider 31 and inclined.
d is provided.

An inner stopper portion 32b for restricting the movement range of the pickup 7 is formed at one end portion of the second slider 32 along the movement direction thereof. Further, on the other end side of the second slider 32, the first rack gear 32 extending along the moving direction of the second slider 32 is provided.
c is provided.

On the side portion of the second slider 32, there is provided an arm portion 32d projecting toward the outside opposite to the first slider 31 arranged oppositely. The arm portion 3 is provided.
A second rack gear 32e extending along the moving direction of the second slider 32 is provided at the tip of 2.

One end of the spring 33 is fixed to the lower plate 30, and the other end of the spring 33 is the second slider 32.
The spring 33 applies a force to move the second slider 33 in the direction of arrow f1. In addition, the second slider 32 by the spring 33
The movement range of the guide pin 30a is restricted by the guide hole 32.
It is performed by hitting one end of a.

A third slider 34, which moves in a direction orthogonal to the moving direction of the first slider 31 and the second slider 32, is attached to the side portion of the lower plate 30. This third slider 34 has a lid 3
The third slider 34 moves by opening and closing the first slider 31 and the second slider 32.
Moves. The details of the mechanism for moving the third slider 34 will be described later.

The driving force transmitting means from the third slider 34 to the first slider 31 and the second slider 32 will be described below. The first slider 3
The driving force transmission means to the first and second sliders 32 is
It also functions as a moving means for the outer stopper portion 31b and the inner stopper portion 32b. The third slider 34 is provided with a rack gear 34a extending along the moving direction thereof, and a pinion gear 35 meshes with the rack gear 3a. The pinion gear 35 is rotatably attached to the lower surface of the lower plate 30. Then, the driving force transmitted to the pinion gear 35 is applied to the first slider 31 by the first slider 2.
It is transmitted by the stage gear 36 and the second two-stage gear 37.

The first two-stage gear 36 is composed of a large gear 36a and a small gear 36b, and is rotatably attached to the lower surface of the lower plate 30. Similarly, the second two-stage gear 37 includes a large gear 37a and a small gear 37b, and is rotatably attached to the lower surface of the lower plate 30. The pinion gear 35 meshes with the small gear 36b of the first two-stage gear 36, and the large gear 36a of the first two-stage gear 36 meshes with the small gear 37b of the second two-stage gear 37. Then, the large gear 37a of the second two-stage gear 37 meshes with the rack gear 31c of the first slider 31.

The driving force transmitted to the pinion gear 35 is transmitted to the second slider 32 by the pinion gear 38. The pinion gear 38 is rotatably attached to the lower surface of the lower plate 30, the pinion gear 35 and the pinion gear 38 mesh with each other, and the pinion gear 38 meshes with the first rack gear 32c of the second slider 32.

Here, from the pinion gear 35 to the rack gear 31c of the first slider 31, the driving force is transmitted by the combination of the first two-step gear 36 and the second two-step gear 37, and the tooth is transmitted. Since the driving force is transmitted from the gear having a large number to the gear having a small number, the movement amount of the first slider 31 per one rotation of the pinion gear 35 is set to be larger than the movement amount of the second slider 32. .

Here, the movement of the third slider 34 is
It is regulated by a spring 33 provided between the second slider 32 and the lower plate 30 which are interlocked by the pinion gear 35 and the pinion gear 38.

A cam gear 39 is engaged with the second rack gear 32e of the second slider 32. The cam gear 39 is rotatably attached to the lower surface of the lower plate 30 and engages with the second rack gear 32e.
a, and a cam groove 39b having a predetermined shape on a part of the outer peripheral surface of the cylinder.
And a cam portion 39c provided with. The cam groove 39b is provided so as to draw a spiral on the outer peripheral surface of the cylindrical cam portion 39c. The position of the cam groove 39b is the cam portion 3
Since the height is different in the vertical direction in the circumferential direction of 9c,
As the cam gear 39 rotates, the height of the cam groove 39b at a certain position is displaced.

As will be described later, the turntable 6 has a first slider 31 and a second slider 32 formed by opening and closing the lid portion 3 with the MD 5 attached.
Of the cam hole 31d of the first slider 31 by the movement of
And the cam groove 39b is displaced by the rotation of the cam gear 39 to move up and down. [Structure of Turntable] FIG. 6 is a perspective view showing the support mechanism of the turntable 6, and FIG. 7 is a side sectional view showing the structure of the turntable 6. Below, FIG. 4 to FIG. The structure and moving means for moving the turntable up and down will be described.

The motor plate 40 is the lower plate 30.
In the present embodiment, it is attached to the lower surface side of the above through three legs 40a. One surface of the motor plate 40,
Here, a substantially cylindrical bearing post 41 is formed on the upper surface so as to project. Two bearings 41a for supporting the shaft 42 are mounted inside the bearing post 41 with a space therebetween, and a coil 43a is wound around one end of the outside of the bearing post 41, here, on the upper end side. The core 43 is attached.

The shaft 42 is rotatably supported with respect to the bearing post 41 by two bearings 41a of the bearing post 41, and is movable in the extending direction of the shaft 42 itself.

An outer rotor 44 as an electric motor structure constituting the turntable 6 is attached to one end of the shaft 42, here the upper end. The outer rotor 44 has a cylindrical shape with the upper end closed and the lower end opened, and a first permanent magnet 44 a is attached to the inner peripheral surface of the outer rotor 44 so as to face the core 43 attached to the bearing post 41. ing. Also, the outer rotor 4
A second permanent magnet 44b that attracts the core 43 is attached to the inside of the upper end surface of the No. 4.

The first permanent magnet 44a is used to rotate the outer rotor 44 to which the first permanent magnet 44a is attached. On the other hand, the second permanent magnet 44b is used to regulate the axial position of the outer rotor 44.

At the closed upper end of the outer rotor 44, a CD-MD chuck 45 constituting the turntable 6 is formed.
Is attached. The CD-MD chuck 45 is provided with an MD holding part 45b above the CD holding part 45a. The MD holding portion 45b is MD5 by a magnet (not shown).
Suction and hold the central part of the. Also, the CD holding portion 45a
Holds the CD4 by pressing a support member against the inner peripheral surface of the CD4 by a spring (not shown).

As described above, the turntable 6 according to the present embodiment has a CD-MD chuck 45 that selectively holds either the CD 4 or the MD 5 and an electric motor that constitutes a motor for rotating the turntable 6. By incorporating the structure integrally, a mechanism for rotationally driving different recording media is realized by a simple mechanism with a small number of parts.

The other end of the shaft 42, here the lower end, is supported by an elevating plate 46. The elevating plate 46 includes a bottom plate 46a that supports the shaft 42, and the first wall portion 4 that rises from both ends of the bottom plate 46a.
6b and the second wall 46c. The bottom plate 46 a of the elevating plate 46 is provided with a bearing (not shown) that supports the end of the shaft 42. This bearing is
It is made of a material that suppresses resistance when the shaft 42 rotates.

Guide pins 46d are provided on the first wall portion 46b, and first guide pins 46e and second guide pins 46f are provided on the second wall portion. The first guide pin 46e and the second guide pin 46f are provided at positions aligned in a line in the vertical direction.

The guide pin 46d, the first guide pin 46e, and the second guide pin 46f have a function of restricting the attitude of the elevating plate 46 when elevating and lowering, and a movement of the first slider 31 and the cam gear 39. It has a function of raising and lowering the raising and lowering plate 46.

On the lower surface of the lower plate 30, an elevating guide portion 47 for guiding the elevating plate 46 toward the first wall portion 46b is provided. The elevating guide portion 47 is formed by bending a part of the lower plate 30 toward the lower surface side, for example, and extends in the vertical direction with respect to the surface of the lower plate 30. Then, a guide hole 47a for guiding the guide pin 46d is provided. The guide hole 47a is an elongated hole extending along the moving direction of the elevating plate 46.

On the lower surface of the lower plate 30, an attitude regulating guide plate 48 for guiding the elevating plate 46 toward the second wall portion 46c is attached. The posture regulation guide plate 48 is, for example, a member having an inverted L-shaped cross section attached to the lower surface of the lower plate 30, and extends in the vertical direction with respect to the surface of the lower plate 30. Then, a guide hole 48a for guiding the first guide pin 46e and the second guide pin 46f is provided. The guide hole 48a is an elongated hole extending along the moving direction of the elevating plate 46.

As described above, since the lifting plate 46 is supported by the guide hole 48a at the two points of the first guide pin 46e and the second guide pin 46f on the side of the second wall 46c, the lifting plate 46 maintains its posture. It can be raised and lowered as it is.

The guide pin 46d provided on the first wall portion 46b of the elevating plate 46 is inserted into the guide hole 47a of the elevating guide portion 47, and the tip of the guide pin 46d is formed in the cam hole 31d formed in the first slider 31. Inserted in.

Further, the second wall portion 46 of the elevating plate 46
The first guide pin 46e provided in c is inserted into the guide hole 48a of the posture regulation guide plate 48, and the tip thereof is inserted into the cam groove 39b formed in the cam gear 39.

Now, the first slider 31 slides along the surface of the lower plate 30 by the rotation of the pinion gear 35. The cam hole 31d formed in the first slider 31 has a slope such that one end side along the moving direction of the first slider 31 is low and the other end side is high.

Since the guide pin 46d is guided by the guide hole 47a of the elevating guide portion 47 and does not move in the moving direction of the first slider 31, the first slider 3
As 1 moves, the contact position of the guide pin 46d in the cam hole 31d changes. The height of the contact position changes due to the inclination of the cam hole 31d.

Further, the cam gear 39 is the second slider 3
2 rotates by the sliding movement of the pinion gear 35 along the surface of the lower plate 30. The cam groove 39b formed in the cam gear 39 is a part of a spiral, and has an inclination such that one end side is low and the other end side is high.

The first guide pin 46e does not move in the moving direction of the second slider 32 by being guided by the guide hole 48a of the attitude regulating guide plate 48, so that the cam gear 39 rotates to cause the cam groove to rotate. First in 39b
The contact position of the guide pin 46e changes. Then, the cam groove 39b draws a spiral to change the height of the contact position.

The first guide pin 46e and the second guide pin 46f are connected to the guide hole 4 of the attitude regulating guide plate 48.
Since the elevating plate 46 is guided by 8a, the elevating plate 46 does not rotate around the guide pins 46d and the like, but the elevating plate 46 moves up and down by the rotation of the pinion gear 35.

Now, with respect to the first slider 31, the second slider 31
The amount of movement of the slider 32 is small. Therefore, by using the cam gear 39 on the side of the second slider 32, it is possible to secure the amount of elevation of the elevating plate 46 that matches the side of the first slider 31 without making the inclination of the cam groove 39b tight.

The outer rotor 44 constituting the turntable 6 is attached to the shaft 42 as described above. The shaft 42 is rotatably and axially movably supported by a bearing post 41 that is fixed to the lower plate 30, and the lower end of the shaft 42 is supported by a lift plate 46 bottom surface 46 a. ing. As a result, the lifting plate 46 is lifted and the core 43 is moved.
And the attraction force of the first permanent magnet 44a and the core 43 and the second
The turntable 6 moves up and down by the attraction force of the permanent magnet.

The bottom plate 46a of the elevating plate 46 is provided with a retaining portion 46g for preventing the outer rotor 44 from coming off. The retaining portion 46g has a shape that covers, in a non-contact manner, a portion of the ring-shaped protruding flange portion 44c provided at the lower end of the outer rotor 44, and prevents the outer rotor 44 from coming out upward. [Structure of Pickup] Next, the structure of the pickup 7 will be described with reference to FIG. The pickup 7 is supported by the shaft 49 and the guide rail 50. The lower plate 30 is provided with an opening 30b extending along the moving direction of the pickup 7. The shaft 49 is supported at both ends by a support member 49a and a support member 49b attached to the lower surface of the lower plate 30,
It is attached to the lower plate 30. Guide rail 50
Are directly attached to the lower plate 30.

The shaft 49 is provided on one side end of the opening 30a with respect to the moving direction of the pickup 7, and the guide rail 50 is provided on the other side end of the opening 30a. Thus, the pickup 7 has one side end slidably supported by the shaft 49 and the other side end slidably supported by the guide rail 50 in the moving direction.

The pickup 7 is moved by the feed screw 51. The feed screw 51 is provided in parallel with the shaft 49, and is rotatably supported by the support members 49a and 49b.

The feed screw 51 is provided with a screw thread along its extending direction, and an engaging portion 52 that meshes with the screw thread is attached to the pickup 7. The engagement portion 52 is formed of, for example, a material having a spring property. As a result, when the feed screw 51 rotates, the meshing portion 52 is fed by the thread of the feed screw 51, and the pickup 7 moves along the feed screw 51 and the shaft 49.

The feed screw 51 is rotated by a motor 53 attached to the lower surface side of the lower plate 30. A pinion gear 53a is attached to the motor 53, and
The rotation of the pinion gear 53a is transmitted to the worm gear 51a provided on the feed screw 51 via the step gear 54 and the second two-step gear 55.

That is, the first two-stage gear 54 and the second two-stage gear 54
The stage gears 55 are rotatably attached to the lower surface of the lower plate 30, respectively, and are connected to the large gear 54 a of the first two-stage gear 54.
Meshes with the pinion gear 53a, and the first two-stage gear 54
The small gear 54b of the gear meshes with the large gear 55a of the second two-stage gear 55. Then, the small gear 55b of the second two-stage gear 55
Engages with a worm gear 51a provided at one end of the feed gear 51. As a result, when the motor 53 rotates, the feed screw 51 rotates, and the pickup 7 moves along the extending direction of the feed screw 51 according to the rotation direction of the feed screw 51.

Now, the moving range of the pickup 7 is the first
The outer stopper portion 31b provided on the slider 31 and the second
It is regulated by the inner stopper portion 32b provided on the slider 32. That is, since the CD 4 and the MD 5 have different sizes, the first slider 31 and the second slider 32 are moved according to the type of the set medium, and the movement range of the pickup 7 is forcibly regulated according to the medium. ing.

[Driving Force Transmission Mechanism between Lid and Main Body] Next, the mechanism for moving the first slider 31 and the second slider 32 and the right holder 11 and the left holder 12 described with reference to FIG. A mechanism for moving the will be described.

FIG. 8 is a side view showing the main structure of the information processing apparatus 1 of this embodiment. FIG. 8A shows a state where the lid portion 3 is opened with respect to the main body portion 2, and FIG. 8B shows a state where the lid portion 3 is closed with respect to the main body portion 2.

The upper plate 10 is a lower plate 30.
On the other hand, it can be opened and closed by rotating around the opening / closing shaft 56. Between the upper plate 10 and the lower plate 30, a first connecting arm 57 for moving the holder opening / closing slider 22 and a second connecting arm 57 for moving the third slider 34 are provided.
Are connected by a connecting arm 58.

In the first connecting arm 57, a first shaft 57a provided at one end is rotatably attached to the lower plate 30, and a second shaft 57b provided at the other end is a holder. It is rotatably attached to the opening / closing slider 22.

On the side portion of the upper plate 10, two first guide holes 10g arranged in a line and a second guide hole 10h extending along the first guide hole 10g are provided. Two guide pins 22c are provided on the side of the holder opening / closing slider 22.
Are slidably inserted into the first guide holes 10g, respectively.

In the second connecting arm 58, a first shaft 58a provided at one end is rotatably attached to the third slider 34, and a second shaft 58b provided at the other end. Is rotatably and slidably inserted into a second guide hole 10h provided in the upper plate 10. Further, on the other end side of the second connecting arm 58,
The turntable switching portion 2 of the MD detection lever 23, which projects from the groove portion 10c of the upper plate 10 described in FIG.
An abutting protrusion 58c that comes into contact with 3e is provided.

On the side portion of the lower plate 30, two guide holes 30c arranged in a line are provided. Two guide pins 34b are provided on the side of the third slider 34, and these guide pins 34b are slidably inserted into the guide holes 30c, respectively.

The position of the holder opening / closing slider 22 shown in FIG. 2 is the position when the lid 3 is open. This Figure 2
The position of the holder open / close slider 22 shown in (1) is the open position of the holder open / close slider 22.

When the lid 3 that is open is closed, the upper plate 10 rotates about the opening / closing shaft 56, and FIG.
The state shown in FIG. 8A is displaced to the state shown in FIG. In this process, since the position of the first connecting arm 57 on the lower plate 30 side is restricted by the first shaft 57a and the first connecting arm 57 can rotate only, the upper plate 10 side moves. When the upper plate 10 is closed, the holder opening / closing slider 22 is pushed out against the upper plate 10, and the first connecting arm 5
7 moves the holder open / close slider 22 in the open position in the direction of arrow g1.

In addition, the second connecting arm 58 normally has an upper portion because the movement of the third slider 34 supporting the first shaft 58a at one end thereof is restricted by the spring 33. The plate 10 side will move. Therefore, when the upper plate 10 is closed, the second shaft 58b provided at the other end of the second connecting arm 58 with respect to the upper plate 10 becomes
It is guided by the guide hole 10h and moves in the direction of arrow g1.

[Operation of Cover] The operation of the information processing apparatus 1 according to this embodiment will be described below. First, the operation of the lid portion 3 will be described. In FIG. 2 described above, the lid portion 3 is open, and M
The state where MD5 is not inserted in D holder 8 is shown.
Here, when the lid 3 is open, the right holder 11 and the left holder 12 are located at the MD position. When the left holder 12 is located at the MD position, the guide pin 13 (b) to which the one arm 29b of the reversing spring 29 is attached
Is located outside the pin 10f of the upper plate 10 to which the other arm 29b is attached.

Since the reversing spring 29 is attached between the left holder 12 and the upper plate 10 in a state in which both arms 29b generate a force in the direction of spreading, the reversing spring 29 is in the direction of closing the left holder 12. A pushing force is applied in the direction of arrow d1. The right holder 11 and the left holder 12
Is linked by the second two-stage gear 17, so that the right holder 11 is also given a pushing force in the direction of arrow e1 for closing it. As a result, the right holder 11 and the left holder 12 before the MD 5 is inserted can hold the MD position.

FIG. 9 is an explanatory diagram showing the process of inserting and removing the MD5.
This FIG. 9 shows the transmission switching arm 2 in the process of inserting and removing the MD5.
0, the operation of the MD detection lever 23, and the operation of the MD eject lever 25 are shown. Next, the operation of inserting the MD5 will be described. The MD5 is inserted between the right holding portion 14 of the right holder 11 and the left holding portion 15 of the left holder 12 shown in FIG. As shown, when the tip of the inserted MD5 reaches the position P1, the side tip of the MD5 abuts against the MD detection claw 23b of the MD detection lever 23. Since the MD detection lever 23 can rotate about the shaft 23a, when the MD detection claw 23b is pushed by further inserting the MD5, the MD detection lever 23 resists the spring 24 and the arrow about the shaft 23a. Rotate in the a2 direction.

When the tip of the inserted MD5 reaches the position P2, the holder regulating arm 23 of the MD detection lever 23
c moves to a position where it obstructs the movement path of the guide pin 13 (a) of the left holder 12 which moves by being guided by the guide hole 10a. This forcibly restricts the left holder 12 from opening with the MD 5 inserted. Since the left holder 12 and the right holder 11 are interlocked with each other by the second two-stage gear 17 as shown in FIG. 2, the right holder 11 and the left holder 12 are prevented from opening in the initial process of inserting the MD5. In the process of forcibly regulating and inserting MD5, MD
Even if a force that moves 5 sideways is applied, the right holder 11
And the left holder 12 does not open. In FIG. 9, the MD detection lever 23 when the tip of the MD 5 is at the position P2 is shown with a part thereof omitted.

When the tip of the inserted MD5 reaches the position P3, the MD detection lever 23 rotates to a position where the MD detection claw 23b is pushed on the side of the MD5. The rotation of the MD detection lever 23 causes the holder opening / closing drive force switching portion 23d to rotate. This holder opening / closing drive force switching portion 23d is
It is an elongated hole with a shape that is substantially along a part of an arc centered on 3a,
And the distance L1 from one end to the shaft 23a is
It is longer than the distance L2 from the other end to the shaft 23a.

Therefore, by rotating the MD detection lever 23 in the direction of arrow a2, the holder opening / closing drive force switching portion 23 is opened.
The position of the pin 20a of the transmission switching arm 20 guided by d is displaced to a position farther from the position closer to the shaft 23a. As a result, the transmission switching arm 20 rotates about the shaft 19c in the direction of the arrow h1 and retracts the transmission switching gear 21 from the movement path of the rack gear 22a of the holder opening / closing slider 22 shown in FIG. Further, due to the rotation of the MD detection lever 23, the turntable switching portion 23e moves to a position that closes a part of the groove portion 10c of the upper plate 10 shown in FIG.

When the tip of the MD5 to be inserted reaches the position P4, the tip of the MD5 is moved to the MD eject lever 25.
And hits the MD locking portion 25b. When the MD 5 is further inserted from this state, the MD eject lever 25 rotates in the direction of the arrow b2 about the shaft 25a against the spring 26.

The lever locking pin 25c provided on the MD eject lever 25 is
The rotation in the direction of the arrow b2 about the axis 25a of
It hits the cam surface 27c of the eject opening / closing lever 27. When the MD eject lever 25 rotates in the direction of the arrow b2 as the MD5 is further inserted, the lever locking pin 25c pushes the cam surface 27c of the eject opening / closing lever 27, and the eject opening / closing lever 27 resists the spring 28 and the shaft 27a. Is rotated in the direction of arrow c2.

By the rotation of the MD eject lever 25 and the eject opening / closing lever 27, the contact position of the lever locking pin 25c with respect to the cam surface 27c moves toward the tip of the cam surface 27c.

Then, the tip of the MD5 to be inserted is at the position P.
5, when the lever locking pin 25c reaches the cam surface 27c.
Get over. As a result, the eject opening / closing lever 27
2 is rotated in the direction of arrow c1 by the spring 28, as shown in FIG.
It returns to the initial position where it comes into contact with the stopper 10e shown in FIG. Further, a force to return to the initial position is applied to the MD eject lever 25 by the spring 26, but since the lever locking pin 25c abuts on the cam surface 27, the spring 26 rotates the MD eject lever 25 in the direction of arrow b1. Is regulated. Therefore, the inserted MD5 is not released. When the MD5 is inserted up to the position where the tip reaches the position P5, the setting on the MD holder 8 shown in FIG. 2 is completed.

Next, the operation of closing the lid portion 3 with the MD 5 set in the MD holder 8 will be described. Figure 8
From the state where the lid portion 3 shown in (a) is open, the lid portion 3
When the main body 2 is closed, the first connecting arm 5
7, the one end portion side is rotated around the first shaft 57a, and the holder opening / closing slider 22 guided by the first guide hole 10g on the other end portion side is moved in the arrow g1 direction.

10A and 10B are explanatory views showing the operation of the holder opening / closing slider 22, FIG. 10A shows a process of closing the lid part 3, and FIG. 10B shows a process of opening the lid part 3.

When the lid 3 is closed, the holder open / close slider 22 moves in the direction of arrow g1. During this movement, the ride-over projection 22b provided on the holder open / close slider 22 is pushed over the ride-on claw 27b of the eject open / close lever 27.
Hit against.

Here, a slope 22d is formed on the overriding protrusion 22b on the side in the moving direction when the holder opening / closing slider 22 moves in the direction of arrow g1. The surface opposite to the inclined surface 22d is a vertical surface 22e. Further, a guide portion 27d formed by bending an end portion of the ride-over claw 27b facing the slope 22d is formed.

Since the rotation of the eject opening / closing lever 27 in the arrow c1 direction is restricted by the stopper 10e shown in FIG. 2, the overriding projection 22b is overrun by the overriding claw 27 while the holder opening / closing slider 22 is moving in the arrow g1 direction.
When it hits b, the guiding portion 27d of the overcoming claw 27b rides on the slope 22d of the overriding protrusion 22d. Then, the portion of the eject opening / closing lever 27 on the side of the overriding claw 27b with respect to the shaft 27a is elastically deformed to pass over the overriding protrusion 22b. As a result, the eject opening / closing lever 27 does not rotate during the process of closing the lid 3.

FIG. 11 is a plan view of the lid portion 3 with the MD 5 set and closed. Holder open / close slider 22
When is moved in the direction of arrow g1, the rack gear 22a reaches a position facing the transmission switching gear 21. However, since the transmission switching gear 21 is retracted from the movement path of the rack gear 22a by the rotation of the transmission switching arm 20 caused by the rotation of the MD detection lever 23 due to the insertion of the MD5 as described above, the transmission switching gear 21 and the rack gear 22 are moved.
a does not engage. Therefore, holder open / close slider 2
The transmission switching gear 21 does not rotate by the movement of arrow 2 in the direction of the arrow g1, and the right holder 11 and the left holder 12 that move by receiving the driving force from the transmission switching gear 21 do not open.

Incidentally, when the tip of the MD5 inserted in FIG. 9 reaches the position P3, the transmission switching gear 21 is retracted from the movement path of the rack gear 22a by the rotation of the MD detection lever 23, so by any chance. , The right holder 11 and the left holder do not open even if the lid part 3 is closed when the tip of the MD5 reaches the position P3, and the occurrence of obstacles such as the MD5 falling and damaging the pickup 7 is prevented. .

Next, the operation of opening the lid 3 with the MD 5 set and closed will be described. When the lid portion 3 shown in FIG. 8B is closed and the lid portion 3 is opened with respect to the main body portion 2, the first connecting arm 57 has one end on the first shaft side. By rotating around 57a, the holder opening / closing slider 22 guided by the first guide hole 10g on the other end side is moved in the arrow g2 direction.

During the movement of the holder opening / closing slider 22 in the direction of the arrow g2 by opening the lid part 3, FIG.
As shown in (b), the vertical surface 22e of the overriding protrusion 22b provided on the holder opening / closing slider 22 abuts on the overriding claw 27b of the eject opening / closing lever 27.

When the holder opening / closing slider 22 further moves in the direction of the arrow g2 by opening the lid portion 3, the eject opening / closing lever 27 is pushed by the overriding protrusion 22b without overriding the overriding protrusion 22b. As a result, the eject opening / closing lever 27 rotates around the shaft 27a in the direction of arrow c2 against the spring 28.

When the eject opening / closing lever 27 rotates in the direction of arrow c2, the lever locking pin 25c of the MD eject lever 25, which was in contact with the cam surface 27c of the eject opening / closing lever 27, is released. As a result, the MD eject lever 25 is rotated by the spring 26 in the arrow b1 direction about the shaft 25a.

When the MD eject lever 25 rotates in the direction of the arrow b1, the MD locking portion 25b pushes out the MD5,
The MD eject lever 25 returns to the initial position where the MD locking portion 25b abuts against one end of the opening 10d of the upper plate 10. As a result, the MD5 can be taken out. When the lid opening / closing slider 22 further moves in the direction of arrow g2 as the lid 3 is opened, and the overrunning claw 27b separates from the overriding protrusion 22b, the eject opening / closing lever 27 is rotated by the spring 28 in the direction of arrow c1 to stop the stopper. It returns to the initial position where it abuts 10e.

If the guide pin 22c of the holder opening / closing slider 22 abuts against the end of the second guide hole 10h by further opening the lid portion 3, the lid portion 3 cannot be opened any more and the lid portion 3 The opening operation of is ended.

When the MD 5 is pulled out after the lid 3 is opened, the MD 5 is released from the MD detection claw 23d of the MD detection lever 23.
Leave. As a result, the MD detection lever 23 is stopped by the spring 24 in the direction of the arrow a around the shaft 23a.
It rotates until it hits 0b, and returns to the initial position. Also,
The rotation of the MD detection lever 23 in the direction of the arrow a1 causes the pin 20a of the transmission switching arm 20 to be guided by the holder opening / closing driving force switching portion 23d, thereby allowing the shaft 19 to move.
It rotates in the direction of arrow h2 around c. As a result, the transmission switching gear 21 returns to the movement path of the rack gear 22a of the holder opening / closing slider 22.

Next, the operation when the lid 3 is closed without setting the MD 5 in the MD holder 8 will be described. This operation is performed in a state in which CD4 is set or a state in which both CD4 and MD5 are not set as described later.

In a state where the lid 3 shown in FIG. 2 is opened and the MD 5 is not inserted, the pin 20 of the transmission switching arm 20 is inserted.
a is at a position near the shaft 23a in the holder opening / closing drive force switching portion 23d of the MD detection lever 23. As a result, the transmission switching gear 21 exists in the movement path of the rack gear 22a of the holder opening / closing slider 22.

When the lid 3 is closed with respect to the main body 2 in this state, the holder opening / closing slider 22 slides in the direction of arrow g1 by the first connecting arm 57 as shown in FIG. The operation of the eject opening / closing lever 27 in the process of this movement is the same as the operation described with reference to FIG. 10 when the MD 5 is inserted.

When the holder opening / closing slider 22 moves in the direction of arrow g1, the rack gear 22a meshes with the small gear 21b of the transmission switching gear 21. When the holder opening / closing slider 22 further moves in the arrow g1 direction by further closing the lid part 3, the transmission switching gear 21 rotates in the arrow i1 direction.

Since the large gear 21a of the transmission switching gear 21 meshes with the small gear 19b of the second idle gear 19, the second idle gear 19 rotates in the direction of arrow j1. The large gear 19a of the second idle gear 19 is the first
The first idle gear 18 rotates in the direction of arrow k1 because the first idle gear 18 meshes with the idle gear 18. Since the first idle gear 18 meshes with the small gear 16b of the first two-stage gear 16, the holder opening / closing slider 2
By the movement of 2 in the direction of arrow g1, the first two-stage gear 16 rotates in the direction of arrow m1.

When the right holder 11 and the left holder 12 are in the MD position shown in FIG. 2, the first two-stage gear 1
The small gear 16b of 6 is the rack gear 11a of the right holder 11.
Mesh with each other. As a result, the rotation of the first two-stage gear 16 in the direction of arrow m1 causes the right holder 11 to move in the direction of arrow e2.
Move in the direction.

The rack gear 11 of the right holder 11
Since the small gear 17b of the second two-stage gear 17 is engaged with a, the second two-stage gear 17 also rotates in the direction of the arrow m1. Since the large gear 17a of the second two-stage gear 17 meshes with the rack gear 12a of the left holder 12,
The rotation of the second two-stage gear 17 in the direction of arrow m1 causes the left holder 12 to move in the direction of arrow d2 as opposed to the right holder 11.

When the left holder 12 moves in the direction of arrow e2, the rack gear 12a meshes with the large gear 16a of the first two-stage gear 16 while maintaining the meshing of the rack gear 12a and the second two-stage gear 17. As a result, the driving force from the transmission switching gear 21 is transmitted to the left holder 12. Then, as the right holder 11 moves in the direction of arrow e2, the rack gear 11a keeps the meshing with the second two-step gear 17 and the first two-step gear 16 moves.
Move to a position that does not engage. At this time, the first 2
Since the large gear 16a of the stepped gear 16 and the rack gear 12a of the left holder 12 are already engaged with each other, the transmission switching gear 2
The drive force from the first two-stage gear 16 is transmitted from the first two-stage gear 16 to the left holder 12.
It is transmitted to the right holder 11 via 7.

In this way, two sets of the first two-stage gear 16 and the second two-stage gear 17 are provided, and the second two-stage gear 17 is the rack gear 11a of the right holder 11 and the rack gear 12a of the left holder 12. Always engage. Also, the first
The two-stage gear 16 is always engaged with at least one of the rack gear 11a of the right holder 11 and the rack gear 12a of the left holder 12. This allows the right holder 1
The lengths of the rack gear 11a and the rack gear 12a can be shortened while securing the amount of movement of 1 and the left holder 12, and thus the information processing device 1 can be miniaturized.

Now, when the left holder 12 opens, the reversing spring 29 twists the coil portion 29a as the guide pin 13 (b) moves, and the pin 10f provided on the upper plate 10 is centered. To rotate in the direction of arrow n1. Then, the left holder 12 has the guide pin 13
When (b) and the pin 10f pass the position where they are lined up in a line, the coil portion 29a tries to expand, and a force is generated to push the left holder 12 in the direction of opening the arrow d2.

FIG. 12 is a plan view of the lid portion 3 in the closed state without setting the MD5. When the lid 3 is closed, the right holder 11 and the left holder 12 move to a position where the guide pin 13 abuts on one end of the guide hole 10a. The positions of the right holder 11 and the left holder 12 in FIG. 12 are the positions for retracting the CD 4 (hereinafter referred to as the CD position of the holder). When the left holder 12 is in the CD position, as described above, the reversing spring 29 exerts a pushing force in the arrow d2 direction which is the opening direction. Further, since the right holder 11 and the left holder 12 are interlocked with each other by the second two-stage gear 17, the right holder 11 also receives a pushing force in the arrow e2 direction which is the opening direction.
As a result, even if there is a backlash between the first two-stage gear 16 and the second two-stage gear 17 and the rack gear 11a of the right holder 11 and the rack gear 12a of the left holder 12, the right holder 11 and the left holder 11 can be backlashed. 12 can be reliably moved to the CD position. And,
When the lid is closed without setting the MD5, the right holder 11 and the left holder 12 in the CD position do not move in the closing direction.

Next, the operation of opening the lid portion 3 in the closed state without setting the MD 5 will be described. When the lid portion 3 shown in FIG. 8B is closed and the lid portion 3 is opened with respect to the main body portion 2, the first connecting arm 57 has one end on the first shaft side. By rotating around 57a, the holder opening / closing slider 22 guided by the first guide hole 10g on the other end side is moved in the arrow g2 direction. In addition,
The operation of the eject opening / closing lever 27 in the process of this movement is the same as the operation described in FIG. 10 when the MD 5 is inserted, but since the MD eject lever 25 is at the initial position, only the eject opening / closing lever 27 is provided. Rotates.

Now, the holder opening / closing slider 22 is indicated by the arrow g.
When moving in two directions, the transmission switching gear 21 meshing with the rack gear 22a rotates in the direction of arrow i2. When the transmission switching gear 21 rotates in the direction of arrow i, the second idle gear 19 meshing with the transmission switching gear 21 rotates in the direction of arrow j2. As the second idle gear 19 rotates in the direction of arrow j2, the first idle gear 18 meshing with the second idle gear 19 moves in the direction of arrow k.
Rotate in two directions. And this first idle gear 1
Since 8 is meshed with the small gear 16b of the first two-stage gear 16, the movement of the holder opening / closing slider 22 in the direction of arrow g2 causes the first two-stage gear 16 to rotate in the direction of arrow m2.

When the right holder 11 and the left holder 12 are in the CD position shown in FIG. 12, the large gear 16a of the first two-stage gear 16 is the rack gear 12 of the left holder 12.
It meshes with a. As a result, the first two-stage gear 16
When the left holder 12 is rotated in the direction of arrow d,
Move in one direction.

The rack gear 12 of the left holder 12
Since the large gear 17a of the second two-stage gear 17 is engaged with a, the second two-stage gear 17 also rotates in the direction of the arrow m2. Since the small gear 17b of the second two-stage gear 17 meshes with the rack gear 11a of the right holder 11,
By the rotation of the second two-stage gear 17 in the direction of arrow m2, the right holder 11 moves in the direction of arrow e1 as opposed to the left holder 12.

When the right holder 11 moves in the direction of arrow e1, this rack gear 12a meshes with the small gear 16b of the first two-stage gear 16 while maintaining the meshing of the rack gear 11a and the second two-stage gear 17. As a result, the driving force from the transmission switching gear 21 is transmitted to the right holder 11. Then, as the left holder 12 moves in the direction of the arrow d1, the rack gear 12a keeps the meshing with the second two-stage gear 17 and the rack gear 12a moves to the first two-stage gear 16.
Move to a position that does not engage. At this time, the first 2
Since the small gear 16b of the stepped gear 16 and the rack gear 11a of the right holder 11 are already engaged with each other, the transmission switching gear 2
The driving force from the first two-stage gear 16 is transmitted from the first two-stage gear 16 to the right holder 11, and the driving force from the first holder 2 is transmitted from the right holder 11.
It will be transmitted to the left holder 12 via 7.

When the left holder 12 is closed, the reversing spring 29 twists the coil portion 29a along with the movement of the guide pin 13 (b), and the arrow is centered on the pin 10f provided on the upper plate 10. Rotate in the n2 direction. Then, the left holder 12 has the guide pin 13 (b).
When the pin 10f and the pin 10f pass through a line, the coil portion 29a expands to generate a force to push the left holder 12 in the direction of closing the arrow d1, and the reversing spring 29 moves the left holder 12 in the direction of arrow d1. Press to. Further, since the right holder 11 and the left holder 12 are interlocked with each other by the second two-stage gear 17, the right holder 11 also receives a pushing force in the arrow e1 direction which is the closing direction thereof.

By further opening the lid part 3, when the rack gear 22a of the holder opening / closing slider 22 separates from the transmission switching gear 21, the guide pins 13 of the right holder 11 and the left holder 12 are located in one of the guide holes 10a. To the position where it abuts the end portion of, ie, the MD position shown in FIG. At this time, since the left holder 12 and further the right holder 11 are pushed by the reversing spring 29 in the closing direction, the right holder 11 and the left holder 12 are surely moved to the MD position even if there is a backlash.
Then, by further opening the lid portion 3, the guide pin 22c of the holder opening / closing slider 22 is moved to the second guide hole 1
When the end portion of 0h is hit, the lid portion 3 cannot be opened any more, and the opening operation of the lid portion 3 ends.

FIG. 13 is an explanatory diagram showing the relationship between the CD and MD sizes. MD5 package 5b is disk 5
The distance from the center of a to one side is different from the distance to the other side. In the information processing apparatus 1 of the present embodiment, when the MD 5 is not set, the lid 3 is closed to retract the right holder 11 and the left holder 12 to a position where they do not contact the CD 4 as shown in FIG. It is like this.

Then, CD4 and M which are exclusively set
The positional relationship of D5 is the turntable 6 for CD4 and MD5.
The center of CD4 and the disk 5a of MD5 for sharing
The center of will be aligned.

Thus, the distance required for the right holder 11 in the MD position to move to the CD position for retracting CD4 is L3, and the distance for the left holder 12 to move to the CD position for retracting CD4 is: L4
Although (L3 <L4), if the driving force is transmitted between the right holder 11 and the left holder 12 by a single-stage gear, the right holder 11 per one rotation of the transmission switching gear 21.
And the amount of movement of the left holder 12 is the same. In this case, since it is necessary to match the movement amount of the right holder 11 with the movement amount of the left holder 12, an extra movement amount of L4-L3 is added to the originally required movement amount L3.

In this embodiment, the driving force is transmitted to the right holder 11 and the left holder 12 by the first two-stage gear 16 and the second two-stage gear 17, and the rack gear 12a of the left holder 12 is used. Is the large gear 16 of the first two-stage gear 16.
By engaging a with the large gear 17a of the second two-stage gear 17, the left holder 12 per one rotation of the transmission switching gear 21
Secure a large amount of movement.

On the other hand, the rack gear 11a of the right holder 11 includes the small gear 16b of the first two-stage gear 16 and the second gear 16b.
By engaging the small gear 17b of the second-stage gear 17, the moving amount of the right holder 11 is made smaller than that of the left holder 12.
As a result, both the right holder 11 and the left holder 12 can secure the necessary minimum amount of movement, so that the information processing apparatus 1 can be downsized and the width can be particularly narrowed.

FIG. 14 shows a right holder 11 and a left holder 12.
14A is an explanatory diagram showing the operation of the right holder 11 and the left holder 12 in the process of closing the lid 3.
14B is a plan view of the back side viewed from the back side, and FIG.
It is the side view which looked at from the arrow direction.

As described above, when the lid 3 is closed without setting the MD 5, the right holder 11 and the left holder 1
The two move away from each other. Here, the lid 3
Closing process, especially right holder 11 and left holder 1
When 2 approaches CD4, right holder 11 on the way
It is necessary to prevent the CD 4 from touching the left holder 12. In the present embodiment, each of the bottom surface portion 14b of the right holding portion 14 of the right holder 11 and the bottom surface portion 15b of the left holding portion 15 of the left holder 12 is provided with, for example, an arcuate cutout 14c and a cutout 15c. As a result, the lid 3 is closed and the right holder 11 and the left holder 12 are closed.
Even when the right holder 11 and the left holder 12 are not largely retracted when the CD 4 approaches the CD 4, it is possible to prevent the CD 4 from coming into contact with the right holder 11 and the left holder 12 during the movement. Therefore, the amount of movement of the right holder 11 and the left holder 12 can be minimized, and the width of the information processing device 1 can be narrowed.

FIG. 15 is an explanatory view showing the positional relationship between the CD 4 and the MD holder 8. When the lid 3 is closed with the CD 4 set on the turntable 6, that is, the lid 3 is closed without setting the MD 5, the right holder 11 and the left holder 12 move to the CD position as described above. Then, the relationship between the heights of the CD 4 and the MD holder 8 is set so that the right holder 11 and the left holder 12 at the CD position when the lid 3 is closed can be accommodated in the retreat spaces 9 formed on both sides of the CD 4. Is set.

As a result, even if the MD holder 8 is provided on the lid portion 3, the height of the MD holder 8 can be absorbed in the retreat space 9 on the side of the CD 4 and the increase in the thickness of the information processing apparatus 1 can be suppressed. You can

[Operation of Main Body] With the opening / closing operation of the lid 3 described above, the main body 2 controls the raising / lowering of the turntable 6 and the moving range of the pickup 7 depending on whether or not the MD 5 is set. The operation of the main body 2 will be described below.

FIG. 16 is an explanatory view showing the operation of the second connecting arm 58, and FIG. 16 (a) is a process of opening and closing the lid portion 3 on which an MD (not shown) is set, FIG. 16 (b).
16 is a state in which the lid 3 on which the MD is set is closed, and FIG.
(C) shows a state in which the lid 3 is closed without the MD.

The transmission of the driving force to the main body portion 2 side by opening and closing the lid portion 3 is performed by the second connecting arm 58. The second connecting arm 58 has a lower plate 3 at one end thereof.
It is supported by a first shaft 58a on a third slider 34 that can slide with respect to zero. The other end of the second connecting arm 58 is supported by a second shaft 58b slidably inserted in a second guide hole 10h provided in the upper plate 10.

Accordingly, the second connecting arm 58 is slidable with respect to the lower plate 30 at one end side and slidable with respect to the upper plate 10 at the other end side. . Here, the third slider 34 applies the force of the spring 33 to the second force as shown in FIG.
Of the slider 32, the pinion gear 35, and the pinion gear 38. That is, in FIG. 4, the spring 33 causes the second slider 32 to receive a force in the direction of the arrow f1, so that the first slider 32 of the second slider 32 is moved.
Pinion gear 38 meshing with the rack gear 32c of
Of the pinion gear 35 engaged with the pinion gear 38 and the force of the pinion gear 35 engaging with the pinion gear 38 in the arrow q1 direction, the third slider in which the pinion gear 35 and the rack gear 34a are engaged with each other. 34 receives a force in the direction of arrow r1. And
Since the guide pin 34b of the third slider 34 is guided by the guide hole 30c provided in the lower plate 30, the spring 33 pushes the guide pin 34b to a position where the guide pin 34b abuts against one end of the guide hole 30c.
Its position is regulated.

First, the operation of closing the lid 3 will be described. When the lid portion 3 is closed in FIG. 16, a force to move in the arrow r2 direction is applied to the second connecting arm 58 on the first shaft 58a side, and an arrow g1 direction is applied to the second shaft 58b side. The force to move to is added. However, since the position of the third slider 34 is regulated by the spring 33 as described above, the third slider 34 moves unless the force that opposes the spring 33 is generated by the second connecting arm 58. There is no such thing. Therefore, in the process of closing the lid portion 3, the second connecting arm 5
8 rotates around the first shaft 58a, while rotating the second shaft 5
8b is guided by the second guide hole 10h and moves in the direction of arrow g1.

In the process of closing the lid portion 3, the abutting protrusion 58c provided on the second connecting arm 58 enters the groove portion 10c provided on the upper plate 10. As shown in FIG. 12, since the MD detection lever 23 is in the initial position when the MD 5 is not set, the turntable switching portion 23e is retracted from the groove portion 10c. As a result, the abutting protrusion 58c can freely move in the groove 10c, and the second shaft 58b of the second connecting arm 58 is
It is possible to move over the entire area of the second guide hole 10h.

Therefore, when the MD 5 is not set, when the lid 3 is closed, the second connecting arm 58 rotates about the first shaft 58a and the second shaft 58b.
Is guided by the guide hole 10h of the upper plate 10 and slides in the direction of arrow g1. At this time, the groove 1
Since the movement of the abutting protrusion 58c that moves 0c is not restricted, the second connecting arm 58 does not generate a force against the spring 33 shown in FIG. 4, and the third connecting arm 58 does not generate a force as shown in FIG. The slider 34 does not move.

As a result, as shown in FIG. 4, the operation of the main body 2 when closing the lid 3 on which the MD 5 is not set is such that the second slider 32 is moved by the force of the spring 33 in the direction of arrow f1. The guide pin 30a of the lower plate 30 abuts on one end of the guide hole 32a. Further, since the first slider 31 is interlocked by the pinion gear 38, the pinion gear 35, the first two-stage gear 36 and the second two-stage gear 37, the first slider 31 also has an arrow formed by the spring 33. The force in the f1 direction causes the guide pin 30a to abut against one end of the guide hole 31a.

Thus, when the lid 3 is closed with the MD 5 not set, the first slider 31 and the second slider 32 do not move from the position where the lid 3 is opened.

On the other hand, as shown in FIG. 11, MD5
When is set, the MD detection lever 23 moves to M
The turntable switching portion 23e is pushed by D5 and rotates, and the turntable switching portion 23e is in a position of closing a part of the groove portion 10c. As a result, the movement of the abutting protrusion 58c in the groove 10c is restricted.

Therefore, when the lid 3 is closed while the MD 5 is set, the second connecting arm 58 rotates about the first shaft 58a while the second shaft 58b moves toward the upper plate 10. Guided by the guide hole 10h, the sliding movement is made in the arrow g1 direction. At this time, since the turntable switching portion 23e closes a part of the groove portion 10c,
As shown in FIG. 16A, the abutting protrusion 58c that moves in the groove 10c abuts the turntable switching portion 23e.

As shown in FIG. 11, the MD detection lever 23
Since it is pushed by MD5, it cannot rotate. As a result, even if the abutting protrusion 58c of the second connecting arm 58 abuts the turntable switching portion 23e, the MD detection lever 23 does not rotate.

Therefore, as shown in FIG. 16A, when the abutting projection 58c hits the turntable switching portion 23e and the lid portion 3 is further closed, the second connecting arm 58 moves to the second Since the movement of the shaft 58b guided by the second guide hole 10h is restricted, the second connecting arm 58 generates a force against the spring 33 shown in FIG. 4 by the operation of closing the lid 3. That is, the second connecting arm 58 rotates about the second shaft 58b, and
As shown in 6 (b), the third slider 34 connected by the first shaft 58a is moved in the arrow r2 direction.

Next, the operation of the main body portion 2 when closing the lid portion 3 with the MD 5 set will be described. MD
When the lid portion 3 is closed while 5 is set, the third slider 34 moves in the arrow r2 direction as shown in FIG.

When the third slider 34 moves in the direction of arrow r2, the rack gear 34 of the third slider 34 moves.
The pinion gear 35 meshing with a rotates in the direction of arrow q2. When the pinion gear 35 rotates in the direction of arrow q2, the pinion gear 38 engaged with the pinion gear 35 rotates in the direction of arrow o2. Then, when the pinion gear 38 rotates in the arrow o2 direction, the second slider 32 in which the pinion gear 38 and the first rack gear 32c are meshed moves in the arrow f2 direction against the spring 33.

Since the gear portion 39a of the cam gear 39 is engaged with the second rack gear 32e of the second slider 32, when the second slider 32 moves in the direction of arrow f2, the cam gear 39 rotates in the direction of arrow s2. To do.

Since the pinion gear 35 receiving the driving force transmitted from the third slider 34 also meshes with the small gear 36b of the first two-stage gear 36, the pinion gear 35 rotates in the direction of arrow q2. The first two-stage gear 36 rotates in the direction of arrow t2. Since the large gear 36a of the first two-step gear 36 meshes with the small gear 37b of the second two-step gear 37, when the first two-step gear rotates in the direction of the arrow t2, the second two-step gear 37 becomes It rotates in the direction of arrow u2. Then, when the second two-stage gear 37 rotates in the direction of arrow u2,
The large gear 37a of the second two-stage gear 37 and the rack gear 3
The first slider 31 in which 1c is engaged is indicated by an arrow v2.
Move in the direction.

FIG. 17 shows the first slider 31 and the second slider 31.
FIG. 7 is an explanatory diagram showing the operation of the slider 32 of FIG. By closing the lid 3 with the MD 5 shown in FIG. 11 set, the third slider 34 moves, so that the first slider 31 moves to the other end of the guide hole 31a as shown by the solid line in FIG. The guide pin 30a of the lower plate 30 is moved to a position where the guide pin 30a abuts against. Also, the second slider 3
17, 2 moves to a position where the guide pin 30a of the lower plate 30 abuts the other end of the guide hole 32a as shown by the solid line in FIG. The positions of the outer stopper portion 31b of the first slider 31 and the inner stopper portion 32b of the second slider 32 shown by the solid line in FIG. 17 are referred to as the MD positions of the first slider 31 and the second slider 32.

The range of movement of the pickup 7 is such that the outer stopper portion 31b of the first slider 31 and the second slider 3 are moved.
It is regulated by the second inner stopper portion 32b. By closing the lid portion 3 in the state where the MD5 shown in FIG. 11 is set, the outer stopper portion 31b of the first slider 31 and the second stopper portion 31b
The inner stopper portion 32 of the slider 32 moves to the MD position. As a result, the moving range of the pickup 7 is restricted to the range that matches MD5.

On the other hand, as shown in FIG. 4, the first slider 31 is in a position where the guide pin 30a of the lower plate 30 abuts on one end of the guide hole 31a, and the second slider 32 is a guide. The state in which the guide pin 30a abuts on one end of the hole 32a, that is, the outer stopper portion 31b of the first slider 31.
And the inner stopper portion 32b of the second slider 32 shown in FIG.
The position indicated by the chain double-dashed line in 7 is referred to as the CD position of the first slider 31 and the second slider 32.

As a result, the moving range of the pickup 7 is restricted to the range corresponding to the CD 4 when the lid 3 without the MD 5 shown in FIG. 12 is closed and the lid 3 is opened.

Here, the position of the outer stopper portion 31b when the first slider 31 is at the CD position is set to P
6. Outer stopper portion 31b when in MD position
Is set to P7. Also, the second slider 32 is C
The position of the inner stopper portion 32b when in the D position is P8, and the inner stopper portion 3 when in the MD position
The position of 2b is P9.

When the first slider 31 and the second slider 32 are in the CD position, the pickup 7
Is prevented from moving outward beyond the position P6 by hitting the outer stopper portion 31b. In addition, the movement toward the inner side beyond the position P8 is prevented by the inner stopper portion 31.
It is blocked by hitting b.

Furthermore, the first slider 31 and the second slider 31
When the slider 32 is in the MD position, the pickup 7 is prevented from moving outward beyond the position P7 by hitting the outer stopper portion 31b. Further, the inward movement beyond the position P9 is prevented by hitting the inner stopper portion 31b.

By thus restricting the movement range of the pickup 7 according to the type of recording medium to be set,
The pickup 7 moves due to external impact, etc.
It is possible to prevent the occurrence of troubles such as collision with the package 5b of No. 5 and the like.

From the relationship of the sizes of CD4 and MD5, the moving amount of the first slider 31 for moving the outer stopper 31b at the position P6 to the position P7 is set to the inner stopper 32b at the position P8 to the position P9. It is necessary to make it larger than the moving amount of the second slider 32 for moving.

For this reason, the number of teeth of the first two-step gear 36 and the second two-step gear 37 for transmitting the driving force from the pinion gear 35 to the first slider 31, and the pinion gear 35 to the second slider 32. The relationship of the number of teeth of the pinion gear 38 which transmits the driving force to the pinion gear 35 is set so that the movement amount of the first slider 31 per one rotation of the pinion gear 35 is larger than the movement amount of the second slider 32.

Next, the operation of the main body portion 2 when opening the lid portion 3 will be described. First, the operation of the main body 2 when the lid 3 that is closed when the MD 5 is not set is opened will be described. When the MD 5 is not set, the spring 33 shown in FIG. 4 causes the third slider 34 to move the guide pin 34 as shown in FIG.
b is pushed to a position where it abuts against one end of the guide hole 30c, and that position is regulated. As shown in FIG. 4, the first slider 31 has a position where the guide pin 30a of the lower plate 30 abuts on one end of the guide hole 31a, and the second slider 32 has a guide hole on one end of the guide hole 32a. It is in the position where the pin 30a abuts, that is, in the CD position.

When the lid 3 is opened from this state, the second
While the connecting arm 58 rotates around the second shaft 58b, the second shaft 58b is guided by the second guide hole 10h and moves in the arrow g2 direction. When the lid 3 is opened, no force is generated to move the third slider 34 in the direction of the arrow r2. Therefore, as shown in FIG. 4, the first slider 31 has a lower plate at one end of the guide hole 31a. Three
The guide pin 30a of 0 does not move at the position where it abuts, and similarly, the second slider 32 does not move at the position where the guide pin 30a abuts on one end of the guide hole 32a. As described above, when the MD 5 is not set, the first slider 31 and the second slider 32 do not move in the CD position by opening and closing the lid 3.

Next, the operation of the main body 2 when opening the closed lid 3 with the MD 5 set will be described. In the state where the MD5 is set, as shown in FIG. 16 (c), the third slider 34 pushes the abutting projection 58c by the turntable switching portion 23e, so that the guide pin 34b moves to the other side of the guide hole 30c. It is pushed to the position where it hits the end of. As a result, FIG.
As shown in FIG. 3, the first slider 31 is in a position where the guide pin 30a of the lower plate 30 abuts on the other end of the guide hole 31a, and the second slider 32 is in the guide hole 32a.
Is in the MD position where the guide pin 30a abuts the other end of the.

When the lid 3 is opened from this state, FIG.
Since the second protrusion 58c of the second connecting arm 58 is pressed against the turntable switching portion 23e by the spring 33 shown in FIG. 1, first, while rotating the second arm 58 about the second shaft 58b, , Spring 3
By 3, the third slider 34 moves in the direction of arrow r1.

That is, as the lid 3 is opened, the movement of the third slider 34, which was restricted by the second connecting arm 58, is released, and as shown in FIG. The pinion gear 38 meshing with the first rack gear 32c of the second slider 32 rotates in the direction of arrow o1 by the force to move the second slider 32 in the direction of arrow f1, and meshes with this pinion gear 38. The pinion gear 35 in the arrow q1
Rotate in the direction. Then, the third slider 34 in which the pinion gear 35 and the rack gear 34a are engaged with each other moves in the direction of arrow r1.

Since the gear portion 39a of the cam gear 39 meshes with the second rack gear 32e of the second slider 32, when the second slider 32 moves in the arrow f1 direction, the cam gear 39 moves in the arrow s1 direction. Rotate to.

Since the pinion gear 35 receiving the driving force transmitted from the third slider 34 also meshes with the small gear 36b of the first two-stage gear 36, the pinion gear 35 rotates in the direction of arrow q1. The first two-stage gear 36 rotates in the direction of arrow t1. Since the large gear 36a of the first two-stage gear 36 meshes with the small gear 37b of the second two-stage gear 37, when the first two-stage gear rotates in the direction of arrow t1, the second two-stage gear 37 It rotates in the direction of arrow u1. Then, when the second two-stage gear 37 rotates in the direction of arrow u1,
The large gear 37a of the second two-stage gear 37 and the rack gear 3
The first slider 31 with which 1c is engaged is indicated by an arrow v1.
Move in the direction.

When the third slider 34 is pushed by the spring 33 to the position where the guide pin 34b abuts against one end of the guide hole 30c as shown in FIG. 16 (a), the first slider 34 is moved to the first position as shown in FIG. The slider 31 and the second slider 32 return to the CD position.

Moreover, since the movement of the third slider 34 is restricted by this, the second connecting arm 58 can be moved to the position shown in FIG.
As shown in FIG. 6 (a), while rotating around the first shaft 58a, the second shaft 58b is guided by the guide hole 10h of the upper plate 10 and slides in the direction of the arrow g2 so that the abutting projection 58c is formed. Move away from the turntable switching unit 23e. After that, the lid 3 is opened until the second shaft 58b hits one end of the guide hole 10h.

As described above, as the lid 3 is opened and closed,
The first slider 31 and the second slider 32 move between the CD position and the MD position depending on whether or not the MD5 is set. Now, in the state where the CD 4 is set, that is, when the CD 3 is reproduced by closing the lid 3 with the MD 5 not set, as shown in FIG. 17, the pickup 7 has the outer stopper 3 at the position P6.
It moves between 1b and the inner stopper portion 32b at the position P8.

Here, for example, the state where the pickup 7 is stopped at the position shown by the chain double-dashed line in FIG.
When the lid 3 is opened with the pickup 7 stopped at the outermost position in the movement range corresponding to D4, the first slider 31 and the second slider 32 do not move at the CD position.

When the MD 5 is set and the lid 3 is closed, the first slider 31 and the second slider 32 move to the MD position as described above. At this time, the pickup 7 located on the outermost side in the movement range corresponding to CD4 is forcibly moved to the movement range corresponding to MD5 by the movement of the first slider 31 to the MD position (position P7). To be That is, as shown in FIG.
Although the meshing portion 52 that meshes with 1 is attached,
The engagement portion 52 is formed of a material having a spring property, for example, so that the engagement portion 52 can pass over the thread of the feed screw 51 when a force is externally applied. As a result, the position of the pickup 7 can be forcibly moved to the position corresponding to the recording medium to be set.

Similarly, when the MD 5 is set and the lid is closed to reproduce the MD 5, the pickup 7 is located at the position P7 as shown in FIG.
It moves between 1b and the inner stopper portion 32b at the position P9.

Although not shown, when the lid 3 is opened with the pickup 7 stopped at the innermost position in the movement range corresponding to the MD 5, the first slider 3
1st and 2nd slider 32 is C from MD position
Move to D position. At this time, the pickup 7 located at the innermost side in the movement range corresponding to the MD5 moves to the CD position of the second slider 31 (position P
By moving to 8), it is forcibly moved to the movement range corresponding to CD4.

In this way, the pickup 7 can be forcibly moved to the position corresponding to the recording medium to be set by opening and closing the lid 3 regardless of the stop position of the pickup, so that, for example, the MD 5 is set. When this is done, the pickup 7 is located outside the MD 5 and reproduction or recording cannot be performed, or it is possible to prevent the occurrence of obstacles such as the pickup 7 moving in the MD 5 direction and colliding.

[Operation of Turntable] Next, the operation of raising and lowering the turntable 6 by opening and closing the lid 3 will be described. 18 and 19 are explanatory views showing the lifting operation of the turntable 6. The guide pin 46d of the elevating plate 46 is slidably inserted into the cam hole 31d of the first slider 31.

FIG. 18A shows a state in which the first slider 31 and the second slider 32 not shown here are in the CD position. That is, the state in which the lid portion 3 is closed with the MD 5 not set, or the lid portion 3
Shows the opened state.

When the first slider 31 is at the CD position, the guide pin 46d of the elevating plate 46 is guided at one end of the cam hole 31d, that is, at the uppermost end of the inclined cam hole 31d. ing. Also, FIG.
And as shown in FIG. 7, the second slider 32 is a CD
When in the position, the first guide pin 46e of the elevating plate 46 is guided at one end of the cam groove 39b of the cam gear 39, that is, at the uppermost end of the inclined cam groove 39b.

In this way, the guide pin 46d is inserted into the cam hole 3
Guided at the uppermost end of 1d, the first guide pin 46e
Is guided at the uppermost end of the cam groove 39b, the elevating guide 46 is located at the uppermost position. This Figure 7
When the elevating plate 46 is at the uppermost position shown in FIG. 18A, the elevating plate 46 pushes up the shaft 42. As a result, the outer rotor 44 attached to the upper end of the shaft 42 is pushed up, and the CD-MD
The CD holding portion 45 a of the chuck 45 is exposed from the lower plate 30.

Thus, the position of the turntable 6 shown in FIGS. 7 and 18A when the first slider 31 and the second slider 32 are in the CD position is called the CD position of the turntable 6. . When the turntable 6 is in the CD position, C
CD4 can be set in the D holding portion 45a. Where the first
The slider 31 and the second slider 32 are in the CD position when the lid 3 is opened or when the lid 3 is closed without setting MD5.

As a result, when the lid 3 is opened, C
CD4 can be set in the D holding portion 45a. Also, MD5
When the lid portion 3 is closed without setting, the first slider 31 and the second slider 32 hold the CD position as described above, so that the CD 4 by the CD holding portion 45a is
Can be maintained.

Now, as shown in FIG. 7, the shaft 42 is rotatably supported by the bearing post 41 provided on the motor plate 40, and when the turntable 6 is in the CD position, the first rotor of the outer rotor 44 is rotated. Since the permanent magnet 44a and the core 43 face each other, the turntable 6 can be rotated by a drive circuit (not shown).

Next, with the MD 5 set, the lid 3
The operation of the turntable when closing the will be described. When the lid 3 is closed while the MD 5 is set, as described above, the first slider 31 and the second slider 31
Slider 32 moves to the MD position.

That is, the first slider 31 in the CD position shown in FIG. 18A moves in the direction of arrow v2 by the operation of closing the lid portion 3 on which the MD 5 is set. On the side of the elevating plate 46 facing the first slider 31, the guide pin 46d is inserted into the guide hole 47a of the elevating guide portion 47 shown in FIG.
It can move only in the ascending and descending directions indicated by 1 and w2. As a result, when the first slider 31 moves in the direction of arrow v2, the guide pin 46d moves along the inclination of the cam hole 31d.
Is guided, the guide pin 46d moves along the guide hole 47a.

Further, the second slider 32 at the CD position shown in FIG. 4 moves in the direction of arrow f2 by the operation of closing the lid portion 3 on which the MD 5 is set. Then, by the movement of the second slider 32 in the arrow f2 direction, the cam gear 39 in which the second rack gear 32e and the gear portion 39a are engaged with each other rotates in the arrow s2 direction.

Second slider 32 of lifting plate 46
The first guide pin 46e and the second guide pin 46f are inserted in the guide holes 48a of the posture regulating guide plate 48 shown in FIG. You can only move to.
As a result, when the cam gear 39 rotates in the direction of the arrow s2, the first guide pin 4 moves along the inclination of the cam groove 39b.
By guiding 6e, the first guide pin 46
e moves along the guide hole 48a.

Therefore, when the first slider 31 and the second slider 32 move to the MD position by the operation of closing the lid portion 3 on which the MD 5 is set, the elevating plate 46 descends in the arrow w2 direction. Go.

When the elevating plate 46 descends in the arrow w2 direction, the shaft 42 can descend in the axial direction. Here, the first permanent magnet 4 of the outer rotor 44 is
As shown in FIG. 19A, a magnetic force center Mg that attracts the core 43 exists in the direction 4a along the extending direction of the shaft 42. Note that FIG. 19A shows a state in which the turntable 6 is being lifted and lowered.

As a result, when the shaft 42 can be lowered, the core 4 moves to the magnetic center Mg of the first permanent magnet 44a.
The force to pull the outer rotor 43
Moves down in the direction of arrow w2 together with the lifting plate 46.

As the elevating plate 46 descends in the direction of the arrow w2, the core 4 moves to the magnetic center Mg of the first permanent magnet 44a.
When the outer rotor 44 descends to the position where 3 reaches, the second permanent magnet 44b moves to the core 4 by the force of the first permanent magnet 44a attracting the core 43 at the magnetic center Mg.
The force to suck 3 becomes stronger. As a result, as the elevating plate 46 further descends in the direction of the arrow w2,
The outer rotor 44 also descends in the arrow W2 direction by the force of the second permanent magnet 44b attracting the core 43.

Then, when the first slider 31 and the second slider 32 move to the MD position as shown in FIG. 17, the elevating plate 46 as shown in FIG. 18 (b).
Guide pin 46d of the other end side of the cam hole 31d,
That is, it is guided at the lowermost end of the inclined cam hole 31d. Further, when the second slider 32 is in the MD position as shown in FIG. 17, the first guide pin 46e of the elevating plate 46, as shown in FIG.
The cam gear 39 is guided at one end of the cam groove 39b, that is, at the lowermost end of the inclined cam groove 39b.

As described above, the guide pin 46d is inserted into the cam hole 3
Guided at the lowest end of 1d, the first guide pin 46e
Is guided at the lowermost end of the cam groove 39b, the elevating guide 46 is located at the lowest position. This Figure 1
8 (b) and FIG. 19 (b), if the elevating plate 46 is at the lowest position, the second permanent magnet 44b attracts the core 43 to lower the outer rotor 44, and the CD-MD.
The CD holding portion 45a of the chuck 45 retracts from the lower plate 30, and the MD holding portion 45b is exposed from the lower plate 30.

As described above, the turntable 6 shown in FIGS. 18B and 19B when the first slider 31 and the second slider 32 are in the MD position.
The position of is referred to as the MD position of the turntable 6.
Then, when the turntable 6 is in the MD position, the MD 5 can be set in the MD holding portion 45b.

Here, the first slider 31 and the second slider 31
The slider 32 of the MD is in the MD position.
Is set and the lid 3 is closed. This allows
When the MD 5 is set and the lid 3 is closed, the turntable 6 moves to the MD position.
MD5 can be maintained by b. Now, even when the turntable 6 is in the MD position, as shown in FIG. 19B, the first permanent magnet 44a of the outer rotor 44 is
Since the core 43 is located at the opposite position, the turntable 6 can be rotated by a drive circuit (not shown).

Next, the operation of the turntable when the lid 3 which is closed with the MD 5 set is opened will be described. When the lid 3 that is closed with the MD 5 set is opened, the first slider 31 and the second slider 32 move to the CD position as described above.

That is, the first slider 31 in the MD position shown in FIG. 18B moves in the direction of arrow v1 by the operation of opening the lid 3 on which the MD 5 is set. As the first slider 31 moves in the direction of arrow v1, the guide pin 46d moves along the inclination of the cam hole 31d.
Is guided, the guide pin 46d rises.

Further, the second slider 32 in the MD position shown in FIG. 17 has the lid portion 3 on which the MD 5 is set.
By the operation of opening the, it moves in the direction of arrow f1. The cam gear 39 rotates in the arrow s1 direction by the movement of the second slider 32 in the arrow f1 direction.

As the cam gear 39 rotates in the direction of arrow s1, the first guide pin 4 moves along the inclination of the cam groove 39b.
By guiding 6e, the first guide pin 46
e rises.

Therefore, when the first slider 31 and the second slider 32 are moved to the CD position by the operation of opening the lid portion 3 in which the MD 5 is set, the elevating plate 46 is raised in the arrow w1 direction. Go.

When the elevating plate 46 moves up in the direction of the arrow w1, the shaft 42 shown in FIG. 7 is pushed up. The force that raises the elevating plate 46 is applied to the second permanent magnet 4
4b attracts the core 43, and the first permanent magnet 4
4a is stronger than the force of attracting the core 43 at the magnetic center Mg. As a result, the outer rotor 44 also rises in the arrow W1 direction as the lift plate 46 rises in the arrow w1 direction.

When the first slider 31 and the second slider 32 are moved to the CD position as shown in FIG. 4, the guide pin 46d of the elevating plate 46 is inclined as shown in FIG. 18 (a). It is guided by the uppermost end of the cam hole 31d. Further, when the second slider 32 is at the CD position as shown in FIG.
As shown in (a), the first guide pin 46e of the elevating plate 46 is guided by the uppermost end of the inclined cam groove 39b.

In this way, the guide pin 46d is inserted into the cam hole 3
Guided at the uppermost end of 1d, the first guide pin 46e
Is guided at the uppermost end of the cam groove 39b, the elevating guide 46 is located at the uppermost position. As a result, the turntable 6 is located at the CD position, and the CD 4 can be set in the CD holding portion 45a.

At this time, the first permanent magnet 44a produces a force to attract the core 43 to the magnetic center Mg, but since the core 43 is fixed to the lower plate 30, the first permanent magnet 44a is Core 4 in the magnetic center Mg
A force that tries to push down the outer rotor 44 in the direction of the arrow w2 is generated by the force that attracts the outer rotor 44. As a result, the lower end of the shaft 42 is pressed against the elevating guide 46. Therefore, the position of the turntable 6 is restricted to a predetermined height.

As described above, the turntable 6 can be shared by the CD 4 and the MD 5 by raising and lowering the turntable depending on whether or not the MD 5 is set. The first slider 31 and the second slider 32 for raising and lowering the turntable 6 also have a function of restricting the moving range of the pickup 7 depending on whether or not the MD 5 is set, as described above. By giving multiple functions to one part,
It is possible to reduce the number of parts.

Since the lift plate 46 is raised and lowered by the cam hole 31d of the first slider 31 and the cam groove 39b of the cam gear 39 provided on both sides of the turntable 6, the lift plate 46 can be raised and lowered in parallel. The position accuracy of the CD holder 45a and the MD holder 45b in the height direction can be improved. Further, it is possible to suppress the deformation of the elevating plate 46 when a force is applied from the outside by dropping the device.

Further, the shaft 42, which serves as a shaft when the turntable 6 rotates, is the bearing post 4 provided on the motor plate 40 fixed to the lower plate 30.
1 is rotatably supported. As a result, the turntable 6 can be moved up and down according to the type of recording medium to be set, but the shaft 42 is supported by the lower plate 30 that does not move. The inclination accuracy of the shaft 42 can be maintained at a high level without relying on it. Accordingly, it is possible to provide a highly accurate mechanism for rotationally driving different recording media with a simple structure having a small number of parts.

[Others] By the way, in the information processing apparatus 1 according to the present embodiment, the pickup 7 corresponding to MD5 is used. Pickup 7 compatible with MD5
Then, the shaft 49 that slidably supports this,
It has a smaller diameter than the CD4 compatible pickup. Therefore, it is preferable to provide a mechanism for preventing the shaft 49 from bending.

20A and 20B are explanatory views showing a mechanism for preventing the bending of the shaft. FIG. 20A is a side view of a main part and FIG. 20B is a plan view of the main part. As the bending prevention mechanism, for example, FIG.
A part of the lower plate 30 shown in FIG.
In b, a pickup holding part 59 is provided on a part of the side where the shaft 49 is provided in the moving direction of the pickup 7.

The pickup holding part 59 is located close to the upper surface of the pickup 7 and is in non-contact with the upper holding part 59a. The pickup holding part 59 faces the upper holding part 59a and is close to the lower surface of the pickup 7. It is composed of a lower pressing portion 59b provided in a non-contact manner. The upper presser 59
The holding portion 59b defined as a is formed by bending the lower plate 30, for example.

The pickup holding section 59 is provided at a position where the pickup 7 located at the home position can be suppressed. For example, the pickup pressing portion 59 is provided corresponding to the position P8 shown in FIG.

Since the pickup retainer 59 is not in contact with the pickup 7, it does not hinder the movement of the pickup 7. Further, when an external force is applied by dropping the information processing device 1 or the like while the pickup 7 is at the home position, the position of the pickup 7 is held and the shaft 49 is prevented from bending.

As described above, by providing the pickup pressing portion 59, the small pickup 7 corresponding to the MD 5 and its peripheral structure can be used, so that the apparatus can be downsized.

[Another Example of Turntable Lifting Mechanism] FIG.
1 is an explanatory view showing another embodiment of the lifting mechanism for the turntable 6, FIG. 22 is a side sectional view of the lifting mechanism for the turntable 6 shown in FIG. 21, and FIG. 23 is a lifting mechanism for the turntable 6 shown in FIG. FIG. 3 is a partially cutaway perspective view showing the configuration of the main part of FIG.

The motor plate 60 is attached to the lower surface side of the lower plate 30 constituting the main body 2 shown in FIG. 1 through a plurality of leg portions 60a. Although only one leg 60a is shown in FIG. 22, the turntable 6
A plurality of legs 60a are arranged around the.

A bearing cover 61 is formed on the upper surface of the motor plate 60 so as to project therefrom. The bearing cover 61 is composed of a bearing portion 61b containing a bearing 61a and a gear cover portion 61c containing a cam gear 62.
A core 63 around which a coil 63a is wound is attached to the upper end side of the bearing cover 61.

The cam gear 62 is composed of a gear portion 62a and a cam portion 62b formed on the upper surface of the gear portion 62a so as to project therefrom. A cam surface 62c, which is an inclined surface that draws a spiral from the upper end side to the lower end side, is formed on a part of the outer peripheral surface of the cam portion 62b.

The cam gear 62 is rotatably attached to the sub plate 64. The sub plate 64 is attached to the lower surface side of the motor plate 60 via a plurality of leg portions 64a. Here, the gear portion 62 a of the cam gear 62 is attached so as to be located between the motor plate 60 and the sub plate 64.

The shaft 65, which serves as the rotating shaft of the turntable 6, is rotatably supported by the bearing cover 61 by two bearings 61a built in the bearing portion 61b of the bearing cover 61, and the shaft 65 itself. It is possible to move in the extending direction.

The lower end of the shaft 65 is supported by the cam surface 62c of the cam gear 62. Therefore, with respect to the rotation center of the turntable 6, that is, the shaft 65,
The cam gear 62 is provided at an eccentric position.

The turntable 6 is attached to the upper end of the shaft 65.
The outer rotor 66 as an electric motor structure constituting the above is attached. The outer rotor 66 has a cylindrical shape with the upper end closed and the lower end open.
On the inner peripheral surface of 6, the first permanent magnet 6 faces the core 63.
6a and the second permanent magnet 66b are attached. The first permanent magnet 66a and the second permanent magnet 66b are arranged side by side with a predetermined gap in the extending direction of the shaft 65. Here, the first permanent magnet 66a is located at the upper end side of the outer rotor 66, Two permanent magnets 66b are provided on the lower end side of the outer rotor 66. Here, the gear cover portion 63c of the bearing cover 61 is the outer rotor 66.
The size should fit inside.

At the closed upper end of the outer rotor 66, the CD-MD chuck 45 constituting the turntable 6 is formed.
Is attached. The CD-MD chuck 45 is provided with an MD holding part 45b above the CD holding part 45a. The MD holding portion 45b is MD5 by a magnet (not shown).
Suction and hold the central part of the. Also, the CD holding portion 45a
Holds the CD4 by pressing a support member against the inner peripheral surface of the CD4 by a spring (not shown).

As described above, the turntable 6 of the present embodiment has the CD-MD chuck 45 which selectively holds either the CD 4 or the MD 5 and the electric motor which constitutes the motor for rotating the turntable 6. By incorporating the structure integrally, a mechanism for rotationally driving different recording media is realized by a simple mechanism with a small number of parts.

The sub plate 64 has two sets of lifting screws 6
7 is rotatably mounted. This lifting screw 67
As shown in FIG. 21, one turntable 6 is provided on each side of the turntable 6. The lifting screw 67 includes a gear portion 67a and a feed screw portion 67b.
The gear portion 67a includes a motor plate 60 and a sub plate 64.
And is engaged with the gear portion 62a of the cam gear 62. Further, the feed screw portion 67b projecting from the gear portion 67a projects from the upper surface side of the motor plate 60 and extends along the up-and-down direction of the turntable 6. The feed screw portion 67b is assumed to have a positive screw thread cut off.

Elevating nuts 68 are screwed into the feed screw portions 67b of the elevating screws 67, respectively. The lifting nut 68 is a lifting groove 68 for lifting the outer rotor 66.
a, and a guide groove 68b for preventing rotation of the lifting nut 68 as shown in FIG.

A flange portion 66c protruding in a ring shape is provided at the lower end of the outer rotor 66. The elevating groove 68a of the elevating nut 68 extends in the direction along the flange portion 66c, and is formed over the entire circumference of the elevating nut 68 here. Then, the flange portion 66c is inserted into the lift groove 68a without contact. On the other hand, the guide groove 68b extends along the extending direction of the turntable 6 which is a direction orthogonal to the elevating groove 68a.

The motor plate 60 is provided with an elevating guide 69 extending along the elevating direction of the turntable 6. The elevating guide 69 is provided corresponding to elevating screws 67 provided on both sides of the turntable 6 with the turntable 6 interposed therebetween, as shown in FIG.
Is formed integrally with the motor plate 60 by bending, for example, and the guide groove 68b of the lifting nut 68 described above is slidably inserted therein.

FIG. 24 is a block diagram showing an example of a mechanism for operating the other lifting mechanism of the turntable 6 described above. The motor 70 is a cam gear 62 shown in FIGS.
The cam gear 62 is rotationally driven by a pinion gear (not shown) that meshes with the gear portion 62a.

The switch 71 is provided to detect whether or not the MD5 shown in FIG. 1 is inserted. This switch 71
Is provided on, for example, the lid portion 3, and the MD detection lever 2 shown in FIG.
By the operation of 3, the output is changed depending on whether MD5 is inserted or not.

The control unit 72 controls the information processing apparatus 1 shown in FIG.
In this case, driving / stopping of the motor 70 and switching between forward rotation / reverse rotation are performed by changing the output of the switch 71.

When the output of the switch 71 changes due to the insertion of the MD 5 by the operation of the MD detection lever 23 shown in FIG. 9, the control unit 72 drives the motor 70 in the normal direction for a certain period of time. When the output of the switch 71 changes due to the removal of MD5, the motor 70 is reversely driven for a certain period of time.

[Operation of Turntable Lifting Mechanism of Another Example] The operation of another lifting mechanism of the turntable 6 will be described below. Here, FIGS. 21A, 22A, and 23 show a state in which the turntable 6 is located at the CD position. That is, the shaft 65 is in contact with the uppermost position of the cam surface 62c of the cam gear 62. The height of the outer rotor 66 at this time is equal to that of the second permanent magnet 66.
b is opposed to the core 63, and 66b of the second permanent magnet
The height at which the core 63 is located slightly lower than the magnetic force center Mg in the direction along the extending direction of the shaft 65. As a result, the second permanent magnet 66b generates a force to attract the core 63 to its magnetic center Mg, but since the core 63 is fixed to the lower plate 30, the second permanent magnet 66b has its magnetic center. The force of attracting the core 63 to the Mg causes a force of pushing down the outer rotor 66 in the arrow w2 direction. As a result, the lower end of the shaft 65 is pressed against the uppermost position of the cam surface 62c of the cam gear 62. Since the uppermost and lowermost portions of the cam surface 62c serve as thrust bearings for the shaft 65, for example, a member that suppresses the resistance when the shaft 65 rotates is attached.

It should be noted that when the turntable 6 is at the CD position, that is, the lower end of the shaft 65 is at the cam surface 6
The position of the elevating nut 68 is set so that the flange portion 66c of the outer rotor 66 does not contact the elevating groove 68a of the elevating nut 68 when pressed against the uppermost position of the 2c.

Now, the shaft 65 is rotatably supported by the bearing cover 61, and when the turntable 6 is at the CD position, the second rotor rotor 66 has the second rotor rotor 66.
Since the permanent magnet 66b and the core 63 are in a position facing each other, the turntable 6 can be rotated by a drive circuit (not shown).

When the output of the switch 71 changes when the MD 5 is inserted into the MD holder 8 shown in FIG. 1, the control unit 72 causes the motor 70 to rotate normally for a certain period of time and then stops.
The rotation direction of the cam gear 62 due to the normal rotation of the motor 70 is the arrow x2 direction shown in FIG. This cam gear 6
By the rotation of the arrow 2 in the direction of the arrow x2, the contact position of the shaft 65 on the cam surface 62c gradually moves downward from the uppermost position along the inclination of the cam surface 62.

Further, the rotation of the cam gear 62 in the direction of arrow x2 causes the lifting screw 67 in which the gear portion 62a of the cam gear 62 and the gear portion 67a are engaged to rotate in the direction of arrow y2. Since the feed screw portion 67b of the lifting screw 67 is a positive screw, when the lifting screw 67 rotates in the arrow y2 direction, the lifting nut 68 descends in the arrow w2 direction. Here, the lifting nut 68 cannot rotate because the guide groove 68b is inserted in the lifting guide 69. As a result, the lifting nut 68 is lifted by the rotation of the lifting screw 67.

Since the flange portion 66c of the outer rotor 66 is inserted into the elevating groove 68a of the elevating nut 68, by lowering the elevating nut 68 in the direction of arrow w2,
The ascending / descending groove 68a comes into contact with the upper surface of the flange portion 66c, and applies a force to push down the outer rotor 66 in the arrow w2 direction. As described above, the contact position of the shaft 65 on the cam surface 62c gradually moves downward along the inclination of the cam surface 62 by the rotation of the cam gear 62 in the arrow x2 direction, and the lifting screw 67 moves in the arrow y2 direction. The rotation causes the lifting nut 68 to descend in the direction of the arrow w2, whereby the turntable 6 descends in the direction of the arrow W2. Here, while the outer rotor 66 moves up and down, the flange portion 66
Although the c and the lifting groove 68a come into contact with each other, the load due to the contact does not pose a problem because the turntable 6 does not rotate during the lifting.

When the motor 70 rotates in the normal direction for a certain period of time, FIG.
As shown in FIGS. 22B and 22B, the turntable 6 is located at the MD position. That is, the shaft 6
5 contacts the lowest position of the cam surface 62c of the cam gear 62.
The height of the outer rotor 66 at this time is such that the first permanent magnet 66a faces the core 63, and the magnetic force center Mg in the direction along the extending direction of the shaft 65 of the first permanent magnet 66a The height of 63 is located slightly below. As a result, the first permanent magnet 66a generates a force to attract the core 63 to the magnetic force center Mg, but since the core 63 is fixed to the lower plate 30, the first permanent magnet 66a has the magnetic force center Mg. Core 6 on Mg
The force of sucking 3 causes a force of pushing down the outer rotor 66 in the arrow w2 direction. As a result, the lower end of the shaft 65 is attached to the cam surface 62 of the cam gear 62.
It is pressed at the bottom of c. Therefore, the position of the turntable 6 is restricted to a predetermined height.

Here, the outer rotor 66 is raised and lowered by raising and lowering the raising and lowering nut 68.
When 6 approaches the MD position of the turntable 6 in the process of descending, the force of the first permanent magnet 66a trying to attract the core 63 to the magnetic center Mg causes the force of pushing the shaft 65 against the cam surface 62c. Occurs. Thus, when the turntable 6 approaches the MD position, the position of the outer rotor 66a can be guided by the first permanent magnet 66a.

Therefore, the width of the lifting groove 68a of the lifting nut 68 in the height direction is set to the flange portion 66c of the outer rotor 66.
Of the outer rotor 66
Can be raised and lowered to a predetermined height. As a result, when the turntable 6 is at the CD position or the MD position, the flange portion 66c moves up and down the groove 68.
It can be prevented from coming into contact with a.

Now, the shaft 65 is rotatably supported by the bearing cover 61, and when the turntable 6 is in the MD position, the first rotor portion of the outer rotor 66 is rotated.
Since the permanent magnet 66a and the core 63 are located at positions facing each other, the turntable 6 can be rotated by a drive circuit (not shown).

When the output of the switch 71 changes due to the removal of the MD 5 from the MD holder 8 shown in FIG. 1, the control section 72 reverses the motor 70 for a fixed time and then stops it.
The rotation direction of the cam gear 62 due to the reverse rotation of the motor 70 is the arrow x1 direction shown in FIG. This cam gear 6
By the rotation of arrow 2 in the direction of arrow x1, the contact position of the shaft 65 on the cam surface 62c gradually moves upward from the lowest position along the inclination of the cam surface 62. As a result, the outer rotor 66 is pushed up in the arrow w1 direction.

The rotation of the cam gear 62 in the arrow x1 direction causes the lifting screw 67 to rotate in the arrow y1 direction. Then, as the lifting screw 67 rotates in the arrow y1 direction, the lifting nut 68 rises in the arrow w1 direction as the outer rotor 66 rises in the arrow w1 direction. As a result, the turntable 6 moves up in the direction of the arrow W1.

When the motor 70 rotates in the reverse direction for a certain period of time, FIG.
As shown in (a) and FIG. 22 (a), the turntable 6 is located at the CD position. At this time, as described above, the first permanent magnet 66a moves the core 6 to the magnetic force center Mg.
The lower end of the shaft 65 is pressed against the uppermost position of the cam surface 62c of the cam gear 62 by the force of trying to suck 3 in. As a result, the position of the turntable 6 is restricted to a predetermined height.

As described above, if the turntable 6 is lifted and lowered by the cam gear 62, the cam gear 62 does not move up and down as the turntable 6 moves up and down. It becomes unnecessary. Therefore, the space required by the member that moves up and down as the turntable 6 moves up and down becomes unnecessary, and the thickness of the information processing apparatus can be reduced.

[Modification of Turntable Lifting Mechanism] FIG.
The turntable lifting mechanism described with reference to FIGS. 1 to 23 raises and lowers the turntable 6 via the shaft 65 by the cam gear 62 and lifts and lowers the turntable 6 via the outer rotor 66 by the lifting screws 67 and the lifting nut 68. I decided to synchronize. On the other hand, the turntable 6 is lifted and lowered mainly by the lifting screw 67 and the lifting nut 6.
The cam gear 62 may position the turntable 6 when the turntable 6 approaches the CD position or the MD position and when the turntable 6 is in the CD position or the MD position.

FIG. 25 is a partially cutaway perspective view showing a modified example of the lifting mechanism of the turntable 6. In FIG. 25, the configuration other than the cam gear 73 is the same as the configuration of the lifting mechanism of the turntable 6 described in FIG. 23, so the same reference numerals are given here and the description of the configuration is omitted. The overall structure of the lifting mechanism for the turntable 6 is shown in FIGS.
21 and 22 are the same as those described in FIG.
The following description will be made with reference to FIG.

The cam gear 73 is composed of a gear portion 73a and a cam portion 73b projectingly formed on the upper surface of the gear portion 73a. When the turntable 6 is at the CD position shown in FIGS. 21 (a) and 22 (a), the cam portion 73b has the first support surface 74a for rotatably supporting the shaft 65 and the turntable 6. A second support surface 74b that rotatably supports the shaft 65 is provided in the MD position shown in FIGS. 21B and 22B. The first support surface 74a and the second support surface 7
4b are provided at different positions in the circumferential direction of the cam portion 73b, and the first support surface 74a is located above the second support surface 74b.

Further, when the turntable 6 approaches the CD position, the first guide surface 75a for guiding the shaft 65 to the first support surface 74a is provided continuously to the first support surface 74a. Further, when the turntable 6 approaches the MD position, the second guide surface 75b that guides the shaft 65 to the second support surface 74b has the second support surface 7b.
4b is provided continuously.

Then, between the first guide surface 75a and the second guide surface 75b, for example, the inclination is tight in the vicinity of the first guide surface 75a and steep in the vicinity of the second guide surface 75b. It is tied with a loosened slope 75c. The cam gear 73 is rotatably attached to the sub-plate 64 shown in FIGS. 21 and 22, and rotates by receiving the driving force of the motor 70 shown in FIG.

The gear portion 73a of the cam gear 73 has a lifting screw 6
It meshes with the gear part 67a of No. 7. The feed screw portion 67b of the lifting screw 67 is cut with a positive screw, but in this modification,
The lead angle of the screw is changed near the upper end and the lower end of the feed screw portion 67b and near the center. That is, the lead angles near the upper end and the lower end of the feed screw portion 67b are smaller than the lead angle near the center. In response to this,
The lifting nut 68 has, for example, one protrusion on its inner peripheral surface,
This projection is engaged with the feed screw portion 67b.

As a result, the lifting nut 68 is lifted and lowered by the rotation of the lifting screw 67, but the lifting amount of the lifting nut 68 per one rotation of the lifting screw 67 is set near the upper end or the lower end of the feed screw portion 67b. When there is no lift nut 68 near the center of the feed screw 67b.
When there is, there will be more.

FIG. 26 is a graph showing the displacement of the cam gear 73 and the lifting nut 68, and the outline of the operation will be described below. Here, in FIG. 26, the vertical axis represents the height, and the horizontal axis represents the rotation amount of the cam gear 73. The first of the cam gear 73
The locus from the support surface 74a to the second support surface 74b is shown by a solid line, and the locus of the lifting nut 68 is shown by a broken line.
In the following description of the operation as well, refer to FIG. 21, FIG. 22 and FIG. 24 in addition to FIG. 25 and FIG.
The following description will be made by replacing 2 with the cam gear 73.

When the turntable 6 is located at the CD position, the shaft 65 is in contact with the first support surface 74a of the cam gear 73. Outer rotor 66 at this time
The height of the second permanent magnet 66b faces the core 63,
Further, the height of the core 63 is located slightly lower than the magnetic force center Mg in the direction along the extending direction of the shaft 65 of the second permanent magnet 66b. As a result, the second permanent magnet 66b generates a force to attract the core 63 to the magnetic force center Mg, but the core 63 does not move to the lower plate 30.
Since the second permanent magnet 66b is attracted to the magnetic center Mg of the core 63, a force that pushes down the outer rotor 66 in the arrow w2 direction is generated. As a result, the lower end of the shaft 65 is pressed against the first support surface 74a of the cam gear 73. In addition,
Since the first support surface 74a and the second support surface 74b have a role of thrust bearings of the shaft 65, for example, a member for suppressing resistance when the shaft 65 rotates is attached.

When the turntable 6 is in the CD position, that is, when the lower end of the shaft 65 is pressed against the first support surface 74a, the flange portion 66c of the outer rotor 66 is moved up and down in the up and down nut 68. 6
The position of the lifting nut 68 is set so as not to contact the 8a.

When the output of the switch 71 changes when the MD 5 is inserted into the MD holder 8 shown in FIG. 1, the control unit 72 causes the motor 70 to rotate normally for a certain period of time and then stops.
The rotation direction of the cam gear 73 due to the normal rotation of the motor 70 is the arrow x2 direction shown in FIG. This cam gear 7
The contact position of the shaft 65 on the cam gear 73 moves from the first support surface 74a to the first guide surface 75a by the rotation of 3 in the direction of the arrow x2.

Further, the rotation of the cam gear 73 in the direction of arrow x2 causes the lifting screw 67 in which the gear portion 73a of the cam gear 73 and the gear portion 67a are engaged to rotate in the direction of arrow y2. Since the feed screw portion 67b of the lifting screw 67 is a positive screw, when the lifting screw 67 rotates in the arrow y2 direction, the lifting nut 68 descends in the arrow w2 direction. Here, the lifting nut 68 cannot rotate because the guide groove 68b is inserted in the lifting guide 69. As a result, the lifting nut 68 is lifted by the rotation of the lifting screw 67.

Since the flange portion 66c of the outer rotor 66 is inserted in the elevating groove 68a of the elevating nut 68, by lowering the elevating nut 68 in the direction of arrow w2,
The ascending / descending groove 68a comes into contact with the upper surface of the flange portion 66c, and applies a force to push down the outer rotor 66 in the arrow w2 direction.

Now, when the turntable 6 is in the CD position, the lifting nut 68 is located near the upper end of the feed screw portion 67b. Therefore, the lifting amount of the lifting nut 68 is small, so that when the turntable 6 is in the vicinity of the CD position, the lowering amount of the turntable 6 per one rotation of the lifting screw 67 is small, as shown in FIG.

On the other hand, by the rotation of the cam gear 73 in the direction of arrow x2, the contact position of the shaft 65 on the cam gear 73 changes from the first support surface 74a to the first guide surface 75.
It moves to a and further to the slope 75c. here,
The slope of the slope 75c in the vicinity of the first guide surface 75a is steeper than the amount of lowering of the lifting nut 68 by the lifting screw 67, so the shaft 65 moves away from the slope 75c. As a result, the position of the turntable 6 is regulated by the lifting nut 68.

When the lifting nut 68 is lowered by the rotation of the lifting screw 67 in the direction of the arrow y2 and reaches the vicinity of the center of the feed screw portion 67b, the lifting amount of the lifting nut 68 per rotation of the lifting screw 67 increases. Therefore, the descending amount of the turntable 6 also increases. Even at this time, the inclination of the slope 75c is set so that the shaft 65 does not contact the cam gear 73. As a result, even if the cam gear 73 rotates, sliding friction with the shaft 65 does not occur, and a force that twists the shaft 65 is not applied. Therefore, the shaft 65 is smoothly lowered.

When the motor 70 rotates forward for a certain period of time, the turntable 6 is located at the MD position. At this time, the shaft 65 contacts the second support surface 74b of the cam gear 73. Now, when the turntable 6 approaches the MD position, the height of the outer rotor 66 is changed to the first permanent magnet 6
6a faces the core 63, and 66 of the first permanent magnet.
The height of the core 63 is slightly lower than the magnetic force center Mg in the direction along the extending direction of the shaft 65 of a.

As a result, the first permanent magnet 66a generates a force to attract the core 63 to the magnetic center Mg, but since the core 63 is fixed to the lower plate 30, the first permanent magnet 66a is Core 6 at the magnetic center Mg
The force of sucking 3 causes a force of pushing down the outer rotor 66 in the arrow w2 direction. As a result, the lower end of the shaft 65 is pressed against the second guide surface 75b of the cam gear 73 first, and is pressed against the second support surface 74b by further rotation of the cam gear 73. Therefore, the position of the turntable 6 is restricted to a predetermined height.

Here, the outer rotor 66 is raised and lowered by raising and lowering the raising and lowering nut 68.
When 6 approaches the MD position of the turntable 6 in the process of descending, the first permanent magnet 66a tries to press the shaft 65 against the second guide surface 75b by the force of attracting the core 63 to the magnetic force center Mg. The force to do occurs.

Now, when the turntable 6 is at the MD position, the lifting nut 68 is located near the lower end of the feed screw portion 67b. Therefore, the lifting amount of the lifting nut 68 is small, and therefore, when the turntable 6 is in the vicinity of the MD position, as shown in FIG. 26, the lowering amount of the turntable 6 per one rotation of the lifting screw 67 is small. As a result, when the turntable 6 approaches the MD position, the outer rotor 66 is driven by the first permanent magnet 66a.
The position of a can be guided.

Therefore, the width of the lifting groove 68a of the lifting nut 68 in the height direction is set to the flange portion 66c of the outer rotor 66.
Of the outer rotor 66
Can be raised and lowered to a predetermined height. As a result, when the turntable 6 is at the CD position or the MD position, the flange portion 66c moves up and down the groove 68.
It can be prevented from coming into contact with a.

When the output of the switch 71 changes due to the removal of the MD 5 from the MD holder 8 shown in FIG. 1, the control unit 72 reverses the motor 70 for a fixed time and then stops it.
The rotation direction of the cam gear 73 due to the reverse rotation of the motor 70 is the arrow x1 direction shown in FIG. This cam gear 7
The contact position of the shaft 65 on the cam gear 73 moves from the second support surface 74b to the second guide surface 75b by the rotation of 3 in the direction of the arrow x1.

The rotation of the cam gear 73 in the direction of arrow x1 causes the lifting screw 67 to rotate in the direction of arrow y1. Since the feed screw portion 67b of the lifting screw 67 is a positive screw, when the lifting screw 67 rotates in the arrow y1 direction, the lifting nut 68 rises in the arrow w1 direction. The lifting groove 68a of the lifting nut 68 has a flange portion 66c of the outer rotor 66.
Since the lift nut 68 is moved upward in the arrow w1 direction, the lift groove 68a comes into contact with the lower surface of the flange portion 66c, and a force for pushing up the outer rotor 66 in the arrow w1 direction is applied.

By the rotation of the cam gear 73 in the arrow x1 direction, the contact position of the shaft 65 on the cam gear 73 moves from the second support surface 74b to the second guide surface 75b, and further to the slope 75c. Here, the slope of the slope 75c in the vicinity of the second guide surface 75b is made gentler than the amount by which the lift nut 68 is lifted by the lift screw 67, so the shaft 65 moves away from the slope 75c. As a result, the position of the turntable 6 is regulated by the lifting nut 68.

When the lifting nut 68 is raised by the rotation of the lifting screw 67 in the direction of the arrow y1 and reaches near the center of the feed screw portion 67b, the lifting amount of the lifting nut 68 per rotation of the lifting screw 67 increases. Therefore, the lift amount of the turntable 6 also increases. Even at this time, the inclination of the slope 75c is set so that the shaft 65 does not contact the cam gear 73. As a result, even if the cam gear 73 rotates, sliding friction with the shaft 65 does not occur, and a force that twists the shaft 65 is not applied. Therefore, the shaft 65 can be smoothly raised.

When the motor 70 reverses for a certain period of time, the turntable 6 is located at the CD position. At this time, the shaft 65 contacts the first support surface 74a of the cam gear 73. Now, when the turntable 6 approaches the CD position, the height of the outer rotor 66 is adjusted to the second permanent magnet 6
6b faces the core 63, and 66 of the second permanent magnet.
The height of the core 63 is slightly lower than the magnetic force center Mg in the direction along the extending direction of the shaft 65 of b.

As a result, the second permanent magnet 66b generates a force to attract the core 63 to the magnetic center Mg, but since the core 63 is fixed to the lower plate 30, the second permanent magnet 66b is Core 6 at the magnetic center Mg
The force of sucking 3 causes a force of pushing down the outer rotor 66 in the arrow w2 direction. As a result, the lower end of the shaft 65 is pressed against the first guide surface 75a of the cam gear 73 first, and is pressed against the first support surface 74a by further rotation of the cam gear 73. Therefore, the position of the turntable 6 is restricted to a predetermined height.

Here, the outer rotor 66 is raised and lowered by raising and lowering the raising and lowering nut 68.
When 6 approaches the CD position of the turntable 6 in the process of rising, the second permanent magnet 66b tries to press the shaft 65 against the first guide surface 75a by the force of attracting the core 63 to the magnetic center Mg. The force to do occurs.

Now, when the turntable 6 is at the CD position, the lifting nut 68 is located near the upper end of the feed screw portion 67b. For this reason, the lifting amount of the lifting nut 68 is small, and therefore, when the turntable 6 is near the CD position, the lifting amount of the turntable 6 per one rotation of the lifting screw 67 is small, as shown in FIG. As a result, when the turntable 6 approaches the CD position, the outer rotor 66 is driven by the second permanent magnet 66b.
The position of a can be guided.

Therefore, the width in the height direction of the lifting groove 68a of the lifting nut 68 is set to the flange portion 66c of the outer rotor 66.
Of the outer rotor 66
Can be raised and lowered to a predetermined height.

In the modification of the lifting mechanism for the turntable 6 described above, the lifting of the turntable 6 is regulated by the cam gear 73 at the position of the shaft 65 which is the rotating shaft of the turntable 6 near the CD position and the MD position. In other places, that is, between the CD position and the MD position, the lifting screw 67 and the lifting nut 68 are used.

As shown in FIG. 23, when the shaft 65 is moved up and down by the cam gear 62, the inclination of the cam surface 62a is made tight so that the shaft 6 per one rotation of the cam gear 62 is increased.
5, the turntable 6 can be moved up and down in a short time, but if the cam surface 62c is steeply tilted, the force for twisting the shaft 65 increases.
The shaft 65 cannot be smoothly moved up and down.

On the other hand, in the modification shown in FIG.
Between the CD position and the MD position, the turntable 6 is moved up and down by the lifting screw 67 and the lifting nut 68 so that the shaft 65 does not come into contact with the cam gear 73.

Even if the lead angle of the feed screw portion 67b of the raising / lowering screw 67 is increased, the raising / lowering nut 68 moves up and down smoothly. Therefore, between the CD position and the MD position, the lead angle of the feed screw portion 67b of the raising / lowering screw 67 is increased. By increasing the value, the amount of lifting of the lifting nut 68 per one rotation of the lifting screw 67 can be increased, and thus the turntable 6 can be lifted and lowered in a short time.

[0299]

As described above, the present invention is provided with the first holding portion for holding the first recording medium composed of a disc-shaped disc, and has a diameter smaller than that of the first recording medium. A second holding unit configured to hold a second recording medium, the position of which is different from that of the first holding unit in a direction orthogonal to the surfaces of the first recording medium and the second recording medium. A turntable that holds either the first recording medium or the second recording medium and rotationally drives it; and a turntable that rotates the turntable while holding the first recording medium. Of the first recording medium or the second recording medium, and a turntable moving means for moving the recording medium of the first recording medium or the second recording medium to a position where the recording medium is rotated in a direction orthogonal to the surface of the first recording medium or the second recording medium. Move in a direction along the face, Even without, it is provided with a pickup for reading information from the first recording medium or the second recording medium.

As a result, it is not necessary to move the pickup up and down, and the structure can be simplified.
Further, by providing a stopper part for restricting the moving range of the pickup and a stopper part moving means for moving the stopper part along the moving direction of the pickup, the moving range of the pickup can be restricted according to the type of the recording medium. , It is possible to prevent the malfunction of the pickup.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of an information processing device according to an embodiment.

FIG. 2 is a plan view showing an internal structure of a lid portion of the information processing apparatus according to the present embodiment.

FIG. 3 is an explanatory diagram showing a configuration of an MD holder.

FIG. 4 is a plan view showing the internal structure of the main body of the information processing apparatus according to the present embodiment.

FIG. 5 is a perspective view showing a main part configuration of a main body section.

FIG. 6 is a perspective view showing a support mechanism of the turntable.

FIG. 7 is a side sectional view showing a configuration of a turntable.

FIG. 8 is a side view showing a main configuration of the information processing apparatus according to the present embodiment.

FIG. 9 is an explanatory diagram showing an MD inserting / removing process.

FIG. 10 is an explanatory diagram showing the operation of the holder opening / closing slider.

FIG. 11 is a plan view of the lid in which the MD is set and closed.

FIG. 12 is a plan view of the lid unit in a closed state without setting the MD.

FIG. 13 is an explanatory diagram showing a relationship between CD and MD sizes.

FIG. 14 is an explanatory diagram showing operations of the right holder and the left holder.

FIG. 15 is an explanatory diagram showing a positional relationship between a CD and an MD holder.

FIG. 16 is an explanatory view showing the operation of the second connecting arm.

FIG. 17 is an explanatory diagram showing operations of the first slider and the second slider.

FIG. 18 is an explanatory diagram showing a lifting operation of the turntable.

FIG. 19 is an explanatory diagram showing a raising / lowering operation of the turntable.

FIG. 20 is an explanatory diagram showing a shaft bending prevention mechanism.

FIG. 21 is an explanatory view showing another embodiment of the turntable lifting mechanism.

FIG. 22 is a side sectional view of a turntable lifting mechanism.

FIG. 23 is a partially cutaway perspective view of the turntable lifting mechanism.

FIG. 24 is a block diagram showing an example of a mechanism for operating a turntable lifting mechanism.

FIG. 25 is a partially cutaway perspective view showing a modified example of the lifting mechanism for the turntable.

FIG. 26 is a graph showing displacements of a cam gear and a lifting nut.

[Explanation of symbols]

1 Information processing equipment 2 body 3 Lid 4 CD 5 MD 6 turntable 7 pickup 8 MD holder 9 evacuation space 10 Upper plate 11 Right holder 12 left holder 16 First two-stage gear 17 Second 2nd gear 20 Transmission switching arm 21 Transmission switching gear 22 Holder open / close slider 23 MD detection lever 25 MD eject lever 27 Eject opening / closing lever 29 Reversing spring 30 lower plate 31 first slider 32 Second slider 34 Third Slider 39 cam gear 40 motor plate 41 Bearing Post 42 shaft 43 core 44 Outer rotor 45 CD-MD chuck 46 Lifting plate 47 Lift guide section 48 Posture control guide plate 49 shaft 51 lead screw 56 Open / close shaft 57 First connection arm 58 Second connecting arm 59 Pickup retainer 60 motor plate 61 Bearing cover 62 cam gear 63 coils 64 sub plate 65 shaft 66 Outer rotor 67 Lifting screw 68 Lifting nut 69 Lifting guide 70 motor 71 switch 72 Control unit 73 Cam Gear 74a First support surface 74b Second supporting surface 75a First guiding surface 75b Second guiding surface 75c slope

Claims (6)

[Claims] 1. A second recording medium having a first holding portion for holding a first recording medium composed of a disc-shaped disc and having a diameter smaller than that of the first recording medium. A second holding part for holding the first holding part
The holding portion of the first recording medium and the second recording medium at different positions in the direction orthogonal to the surface,
A turntable that holds either the first recording medium or the second recording medium and rotationally drives the turntable; and a position where the turntable is rotated while holding the first recording medium, A turntable moving unit that moves the second recording medium in a direction orthogonal to the surface of the first recording medium or the second recording medium to a position where the second recording medium is held and rotated; An information processing apparatus comprising: a pickup that moves in a direction along a surface of a second recording medium and reads at least information from the first recording medium or the second recording medium. 2. The information according to claim 1, further comprising: a stopper portion for restricting a movement range of the pickup, and a stopper portion moving means for moving the stopper portion along a movement direction of the pickup. Processing equipment. 3. According to the type of recording medium to be set,
3. The information processing apparatus according to claim 2, wherein movement of the turntable by the turntable moving means and movement of the stopper portion by the stopper portion moving means are synchronized. 4. The first stopper portion for restricting the movement range of the pickup in the outer peripheral direction of the first recording medium and the second recording medium, the first recording medium, and A second stopper portion for restricting a movement range of the pickup in the inner peripheral direction of the second recording medium, wherein the first stopper portion and the second stopper portion move independently. The information processing apparatus according to claim 2 or 3, characterized in that: 5. The first stopper portion is provided on a first slider that can move along the moving direction of the pickup, and the second stopper portion moves along the moving direction of the pickup. 5. The information according to claim 4, further comprising: a driving force transmission means provided on a possible second slider, the driving force transmitting means varying the movement amount of the second slider with respect to the movement amount of the first slider. Processing equipment. 6. By the movement of the first slider,
A cam hole for displacing a position in a direction orthogonal to the surface of the first recording medium or the second recording medium is provided in the first slider, and a cam gear that is rotated by the movement of the second slider is provided. A cam groove is provided in the cam gear, the cam groove displacing a position in a direction orthogonal to a surface of the first recording medium or the second recording medium by rotation of the cam gear, and the turntable includes the cam hole and the cam hole. 6. The position of the cam groove is moved by the displacement of the cam groove.
The information processing device described.