JPH07220355A - Disk drive device - Google Patents

Abstract

PURPOSE:To reduce the thickness of a disk drive device by moving a base body among the 1st to the 3rd positions and therefore preventing the change of the loading/unloading positions of disks of small and large diameters against a holding means. CONSTITUTION:A spindle motor 7 is fixed to a base body 1 to revolve the 1st and 2nd disks 101 and 104. A pickup 6 is supported to reciprocatively move toward an arrow B in order to record and reproduce the information. The bosses 1a-1d are formed on the surface of the body 1 to hold a disk cartridge 102 in the prescribed height to the pickup 6. Then the positioning pins 2 and 3 are provided on the boses 1a and 1b respectively to engage the positioning holes of the cartridge 102. Meanwhile the body 1 is provided with the guide pins 4 and 5 at the positions outside of a 2nd disk 104 provided on a 2nd turnable 13. Thus the pins 4 and 5 perform the guiding/positioning actions to a holding part 16 when the body 1 is moved up and down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus for a disk-shaped recording medium (hereinafter referred to as a disk), and more particularly to a disk drive apparatus capable of recording / reproducing different kinds of disks. Is.

[0002]

2. Description of the Related Art In recent years, reproducing apparatuses for compact discs (hereinafter referred to as CDs) having good sound quality have become widespread. C
Two types of D, 12 cm in diameter and 8 cm in diameter (single type), are now on sale and are widely used. This CD is especially 12 cmC when used in a portable CD player.
The size of D is large and it is inconvenient to carry. Further, since the disc surface is directly touched when it is mounted on the reproducing apparatus, the surface of the disc becomes dirty or dust adheres, which causes a problem that a normal reproducing state cannot be obtained. For this reason, a cartridge type mini disk (hereinafter referred to as MD) has been devised, which has a smaller outer diameter than the diameter of the CD and has a disk built in the cartridge. This MD uses the same recording method as the CD, so if both discs can be loaded in the same recording / playback device (non-simultaneously loaded), both
Playback is possible.

In the above-mentioned recording / reproducing apparatus, as an example of rotating both CD and MD disks by a common disk rotation driving means, it is disclosed in Japanese Patent Application No. 5-167964 previously filed by the present applicant. There is a cartridge loading device.

[0004]

However, in the cartridge loading device disclosed in Japanese Patent Application No. 167964/1993, the holding means for holding the second turntable for the CD is moved. When attempting to load a CD through the opening provided on the front panel of the housing, the CD cannot be loaded because the guide means and the holding means are in an oblique posture when the MD is removable.

Further, since the guide means is retracted to a position where it does not interfere with the base body in conjunction with the movement operation of the holding means, it is necessary to lengthen the movement stroke of the holding means, which inevitably increases the height of the entire apparatus. In particular, it has been difficult to realize a 1DIN size (height 50 [mm]) vehicle-mounted deck. As one of the solutions, if the guide means is independently driven without being linked to the holding means, the stroke of the holding means can be shortened and the device can be made thin. In this case, the guide means is independently driven. In order to do so, a driving means different from the driving means of the holding means is required.

[0006] Generally, in a car-mounted CD deck,
In order to improve the vibration resistance of the device, the traverse mechanism of the pickup is floated with respect to the housing by a vibration isolation member such as a viscoelastic body. Further, in order to prevent the disc from being double-inserted while the disc is being played, a structure has been adopted in which the CD insertion opening of the casing is shielded by a blocking member also provided in the casing. Since it is difficult to obtain the driving force for driving the blocking member from the portion that is floated with respect to the housing together with the traverse mechanism, conventionally, it has been necessary to separately provide a driving source for the blocking member on the housing side. .

Therefore, the present invention is for recording / recording MD and CD.
Playback can be driven by the same spindle and MD is approximately parallel to the plane including the signal surface of the disc being recorded / played.
Of a slot-in loading disc drive device for inserting a CD and a CD into a device,
2 types of recording / playback positions for each and at least MD
The purpose is to perform the movement operation of the base body between the removable position and the removable position.

Further, according to the present invention, the movement operation for moving the guide means between the receiving position where the cartridge can be mounted and the retracted position where it does not interfere with the base body during the movement operation of the base body described above is performed from the movement drive source of the base body. It is an object of the present invention to provide a thin disk drive device by reducing the moving stroke of the base by obtaining the driving force and performing the movement independently of the movement of the base.

Further, according to the present invention, a driving force from a driving source provided in a portion floated with respect to the housing is obtained,
It is an object of the present invention to perform a blocking operation for preventing the disk cartridge from being inserted into the device when recording / reproducing an MD or a CD.

Further, it is an object of the present invention to provide a disk drive device having a simplified mechanism for performing the moving operation of the base body, the moving operation of the guiding means, and the blocking operation of the blocking member using the common driving means. It is what

[0011]

In view of the above-mentioned drawbacks of the conventional disk loading apparatus, the disk drive apparatus according to claim 1 of the present invention includes a first disk rotatably housed in a disk cartridge and a cartridge. And a second disk which is not housed in the disk and the like, and a disk rotation driving means capable of rotationally driving at the same time by a spindle common to both, and recording / reproducing for recording / reproducing information to / from the first disk and the second disk. It is fixed to a reproducing means, a disk rotation driving means and a base body on which the recording / reproducing means is provided, and a spindle. The first disk supports the first disk and is rotationally driven integrally therewith, so that the first disk can be rotated by the spindle. The first turntable that is centered on the center of rotation and the first turntable can be combined and separated, and the second disc can be supported. Then, the rotational drive force from the spindle is obtained and the rotational drive is performed integrally with the second disc, and the second turntable that centers the second disc with respect to the rotation center of the spindle and at least the attachment / detachment of the disc cartridge A substrate is movably supported between a possible first position, a second position at which recording / reproduction of the first disc is possible, and a third position at which recording / reproduction of the second disc is possible. The base body, the base body moving means, and the first guide means are attached while rotatably holding the base body moving means, the first guide means for guiding when the disk cartridge is attached and detached, and the second turntable. It is composed of an elastic body and a holding means supported via a viscoelastic body with respect to the housing of the apparatus.

According to a second aspect of the present invention, in the disk drive device, the first disk rotatably housed in the disk cartridge and the second disk not housed in the cartridge are non-simultaneously shared by both. A disk rotation driving means capable of being rotationally driven by a simple spindle, a recording / reproducing means for recording / reproducing information on / from the first disk and the second disk, a disk rotation driving means and a recording / reproducing means. And a first base unit fixed to the spindle and supporting the first disc to be rotationally driven integrally therewith, for centering the first disc with respect to the rotation center of the spindle. The first turntable and the first turntable can be connected / separated from each other, and the second disk is supported to obtain the rotational driving force from the spindle to obtain the second detuning. It is rotated in the disk integrally, the second
Second turntable having second centering means for centering the disc of the second disc with respect to the rotation center of the spindle, at least a first position at which the disc cartridge can be attached and detached, and recording / reproducing of the first disc. A second position where the substrate is movable and a third position where the recording / reproducing of the second disc is possible, and a substrate moving means for moving the substrate;
Is provided so as to be movable between a retracted position that does not interfere with the base body when moving from the position 3 to the position 3 and a receiving position where the disc cartridge can be attached and detached, and a guide for attaching and detaching the disc cartridge. From the position detecting means for generating the first position signal when the base body is at the first position. Receiving the first position signal of the
The guide driving means is constituted by a switching means.

According to a fourth aspect of the present invention, there is provided a disk drive device having a housing having an opening for mounting a disk, a disk rotation driving means for rotationally driving the disk, and recording / recording information on / from the disk. A recording / reproducing means for reproducing, a substrate on which the disk rotation driving means and the recording / reproducing means are provided, a first position at which the disk can be attached and detached,
A base moving means for movably supporting the base between a second position where the disk can be recorded / reproduced, a lifting drive means for driving the base moving means, a base, a base moving means, and a lift drive means. It is attached to the housing with an elastic body,
Alternatively, a holding means supported via a viscoelastic body, a closed position for preventing the disc from entering through the opening of the housing, and an open position for allowing the disc to enter through the opening of the housing. When the blocking means movably provided between the housing and the opening / closing drive means provided in the holding means for driving the blocking means and the base body are at least in the second position,
The opening / closing control means controls the blocking means to drive it to the closed position.

[0014]

With the above construction, the disk drive device according to the first aspect of the present invention is provided with the first guide means for guiding when the disk cartridge is attached and detached, and the second guide means.
Of the turntable is rotatably provided, the base body is moved between the first position, the second position and the third position, and the holding member is elastic with respect to the housing. body,
Further, or because it is supported via a viscoelastic body, the attachment / detachment positions of the first disk and the second disk do not change in the housing.

In the disk drive device according to the second aspect of the present invention, the position detecting means detects that the base body is at the first position, generates the first position signal, and receives the first position signal. The function of the base moving means is stopped by the switching means, and the guide driving means is made to function.

According to a fourth aspect of the present invention, there is provided a disk drive device in which a holding member supported by an elastic body and / or a viscoelastic body with respect to the housing is provided with opening / closing drive means. / When the base is at the second position for reproduction, the opening / closing control means controls the blocking member to close the opening of the housing, and switching for double insertion prevention of the disk is performed.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk drive device according to the present invention will be described below with reference to the drawings.

First, with reference to FIG. 17, a description will be given of the disk used in the present apparatus and the rotary drive section of the disk.

In the center of the first disk 101, there is a spindle 7 of a spindle motor 7 (disk rotation driving means).
A center hole 101b having a diameter of 11 [mm] is formed for centering a, and a magnetic hub 101a is fixed at a position facing the center hole 101b. Further, the first disk 101 is supported on the surface opposite to the signal recording surface 101c, and a supporting surface 101d parallel to the signal recording surface 101c is formed.

The first disk 101 is housed in a box-shaped disk cartridge 102. The disc cartridge 102 has a turntable insertion hole 102a into which the first turntable 8 for rotating the first disc 101 can be inserted, and a head scanning window for recording / reproducing a signal by the pickup 6. 102b is formed. Further, the disk cartridge 102 has a shutter 103 for opening and closing the head scanning window 102b.
Is slidably provided.

A center hole 104a having a diameter of 15 mm is formed in the center of the second disk 104 for centering the spindle 7a of the spindle motor 7, and the second disk 104 has a first hole on the surface opposite to the signal recording surface 104b. The supporting surface 1 that supports the second disk 104 and is parallel to the signal recording surface 104b.
04c is formed.

First turntable 8 having a cup shape
Is press-fitted and fixed to the spindle 7a of the spindle motor 7, and the end surface on the opening side thereof serves as a mounting surface 8a on which the supporting surface 101d of the first disk 101 is abutted and mounted. The mounting surface 8a is constructed so as to be perpendicular to the spindle 7a, so that the first disk 101 mounted thereon is also supported perpendicularly to the spindle 7a. The inner wall of the first turntable 8 is a cylindrical surface having an accurate concentric position with respect to the spindle 7a, and has an extremely smooth surface. The centering member 9 has a ring shape, and its outer peripheral surface is part of a spherical shape having a smooth surface state, and is arranged in the recess of the first turntable 8 so as to be slidable with its inner wall. There is. The spring 12 is arranged between the concave portion of the first turntable 8 and the centering member 9, and elastically biases the centering member 9 in the opening direction of the first turntable 8. The magnet 10 is a ring-shaped permanent magnet for attracting the hub 101a of the first disk 101, is covered with a cup-shaped magnetic back yoke 11, and is fixed near the center of the first turntable 8. . The jaw of the back yoke 11 contacts the top of the centering member 9 to prevent the centering member 9 from falling out of the first turntable 8.

When recording / reproducing the first disc 101, the first disc 101 is the first turntable 8
When mounted on the mounting surface 8a of the first disk 101, the hub 101a of the first disk 101 and the magnet 1 of the first turntable 8 are mounted.
The magnetic attraction between the first disk 101 and the first disk 101
The supporting surface 101d is pressed against the mounting surface 8a. Further, the centering member 9 is elastically biased toward the opening side of the first turntable 8 by the spring 12, and the outer peripheral surface of the centering member 9 engages with the central hole 101b of the first disc 101. Here, the outer peripheral surface of the centering member 9 is the first turntable 8
Since the position is regulated by the inner side wall of the disk so as to take an accurate concentric position with respect to the spindle 7a, the center hole 101b of the first disk 101, which engages with this, also has the concentric position with respect to the spindle 7a. As a result, the first disk 101 is centered on the spindle 7a.

In FIG. 17, the disc-shaped second turntable 13 has a second disc 1 on one side near the outer periphery.
A mounting surface 13a is formed to support the supporting surface 104c of No. 04 while supporting the supporting surface 104c. Second turntable 13
An engaging hole 13d (first engaging means) slightly larger than the diameter of the spindle 7a is formed at the center of the. Further, the engagement hole 13 is formed in the center of the second turntable 13.
d is a conical tapered portion 13e that is exactly concentric with d, and a cylindrical centering portion 13f that is exactly concentric with the engaging hole 13d and is slightly larger than the diameter of the central hole 104a of the second disk 104 is a tapered portion. 13e is formed continuously. A pressure-bonding surface 13b is formed in the vicinity of the inner peripheral portion of the second turntable 13 opposite to the mounting surface 13a, and the pressing surface 13b is formed in parallel with the mounting surface 13a.
When it is coupled with the pressure-bonding surface 13b, the pressure-bonding surface 13b is pressure-bonded and supported by the mounting surface 8a of the first turntable 8. As a result, the second disk 104 placed on the placement surface 13a of the second turntable 13 is parallel to the placement surface 8a of the first turntable 8, that is, the spindle 7a.
Supported perpendicular to.

The clamper (pressing means) 14 is provided with an engagement pin (second engagement means) 14b capable of engaging with the engagement hole 13d of the second turntable 13, and the outer peripheral shape of the clamper 14 is It has an accurate concentric shape with respect to the engaging pin 14b. A magnet 15 is fixed to substantially the center of the clamper 14, a magnetic attraction force is generated between the magnetic portion 13c of the second turntable 13 and the magnet 15 of the clamper 14, and the clamper 14 is attached to the second turntable 13. It is crimped. The clamper 14 is for pressing and releasing the second turntable 13 to hold the second disk 104, and the clamper arm (suppressing means) 6
It is rotatably held at the tip of 6.

When recording / reproducing the second disc 104, the second turntable 13 is placed on the first turntable 8 and the spindle 7a protruding from the first turntable 8 is inserted into the second turntable 13. The engaging holes 13d of the second turntable 13 are engaged with each other to perform centering,
The engaging pin 14b of the clamper 14 engages with the engaging hole 13d of the turntable 13 for centering.
Therefore, since the clamper 14 is accurately aligned with the spindle 7a, the dynamic imbalance in the rotational driving state can be suppressed to be small. After that, the crimping surface 13b of the second turntable 13 is mounted on the first turntable 8 by the magnetic attraction force between the magnetic portion 13c of the second turntable 13 and the magnet 10 of the first turntable 8. It is crimped to the placing surface 8a.

Here, when the second disk 104 is mounted, the central hole 104a of the second disk 104 is guided by the taper portion 13e and engages with the guide portion 13f, and the second disk 104 is attached to the spindle 7a. On the other hand, centering is performed. Here, the clamper 14 is the clamper arm 66.
When the second disk 104 is driven toward the second turntable 13 by the magnetic attraction force generated between the magnetic portion 13c of the second turntable 13 and the magnet 15 of the clamper 14, the second disk 104 is moved to the second It is sandwiched between the mounting surface 13a of the turntable 13 and the crimping surface 14a of the clamper 14. At this time, the second turntable 13
Since the engaging hole 13d of the second turntable 13 is engaged with the spindle 7a, the guide portion 13f of the second turntable 13 is accurately concentric with the spindle 7a.
It is possible to suppress the dynamic imbalance when the 4 is rotationally driven.

Next, the substrate moving means for the substrate 1 in this apparatus will be described with reference to FIGS.

In FIGS. 1 and 2, a spindle motor 7 for rotating and driving a first disc 101 and a second disc 104 is fixed to a substrate 1, and a pickup 6 for recording / reproducing information is indicated by an arrow. It is supported so that it can reciprocate in the direction of B. Bosses 1a to 1d are formed on the upper surface of the base body 1 to hold the disc cartridge 102 at a predetermined height with respect to the pickup 6, and engage with positioning holes (not shown by numbers) of the disc cartridge 102. Positioning pins 2 and 3 for positioning are bosses 1a,
1b is planted respectively. The base body 1 is guided and positioned with respect to a holding member (holding means) 16 when the base body 1 is moved up and down, further outside the outer peripheral portion of the second disk 104 mounted on the second turntable 13. Therefore, guide pins 4 and 5 are planted, and lifting pins 1e to 1g are planted on both side surfaces of the base body 1.

In FIG. 3, the first portion is provided on the front surface of the housing 50.
Opening 50a into which a disc cartridge 102 that rotatably accommodates the disc 101 is inserted and ejected
And a second opening 50b into which the second disk 104 is inserted and ejected is formed. In order to prevent dust from entering from the outside, a shutter 60 that normally closes the first opening 50a is rotatably provided inside the first opening 50a, and a shutter 60 is provided inside the second opening 50b. A dustproof sheet 61 such as a non-woven fabric having a slit through which the disc 104 can pass is attached.

Referring to FIGS. 4, 15 and 16, a housing 50
A frame 51 is fixed in the interior of the housing, and a blocking member (blocking means) is provided between a closed position for closing a part of the first opening 50a of the housing 50 and an open position for opening the first opening 50a. 62 is provided slidably with respect to the frame 51. The opening / closing drive lever 63 is rotatably provided on the frame 51, one end of which is engaged with the engagement groove 62a of the blocking member 62, and the other end of which is elastically biased by the torsion spring 23, and the blocking member 62 is provided. Is urged in the direction of arrow E (the direction opposite to arrow F). The opening / closing control lever 64 (opening / closing control means) is rotatably provided on the right side surface of the frame 51, and the engaging portion 64a at one end is engaged with the engaging portion 63a of the opening / closing drive lever 63 and the other end. A pin 63b is planted in the portion.

The holding member 16 is suspended from the frame 51 by springs 56 to 59 (elastic body), and dampers (viscoelastic body) 52 to 55 made of butyl rubber or the like into which viscous fluid is injected are attached to the frame 51. The pins (not shown by numbers) of the holding member 16 are attached and are immersed in the dampers 52 to 55. The holding member 16 is provided in the housing 50 by a vibration-proof member composed of the springs 56 to 59 and the dampers 52 to 55.
The frame 51 is fixed to the frame 51 so as to be movably suspended within a predetermined range, and the influence of external vibration is reduced. Further, when the first disc 101 and the second disc 104 are attached and detached, the holding member 16 is positioned at a predetermined position in the housing 50 by a lock mechanism (not shown). A clamper arm 66 is swingably provided on the holding member 16, and the clamper 14 is rotatably held at the tip of the clamper arm 66. The second turntable 13 is rotatably held substantially in the center of the holding member 16, and the clamper arm 66 swings so that the clamper 14 and the second turntable 13 can be coupled / separated. . The holding member 16 is provided with a disc sensor 67 for detecting the second disc 104 transported to a predetermined position in the apparatus by a transport mechanism (not shown).

C-shaped fixing holders (first guiding means) 17 and 18 are fixed to the lower surface of the holding member 16, and guide the conveyance of the disc cartridge 102 while holding one side surface of the disc cartridge 102. I do. The disk cartridge 102 is provided on the upper surface side of the fixed holders 17 and 18.
A leaf spring 19 is attached to press the disc from above, and a projection piece 18 a for preventing the disc cartridge 102 from being attached to the device when the disc cartridge 102 is inserted from a direction other than a predetermined direction is provided on the inner surface of the fixed holder 18. Has been formed.
The rotation holder (second guide means) 20 is for guiding the conveyance of the disc cartridge 102 while holding the other side surface portion of the disc cartridge 102, and is rotated at the same height as the fixed holders 17 and 18. Therefore, it is pivotally supported on the lower surface side of the holding member 16.

The rotary holder 20 is the disk cartridge 1
02 can be received and a retracted position that does not interfere with the movement range of the base body 1, and the torsion spring 23
Are elastically biased in the receiving position in the direction of arrow C (FIG. 1) and in the retracted position in the direction of arrow D (FIG. 9). A leaf spring 21 that presses the disc cartridge 102 from above is attached to the upper surface side of the rotation holder 20.
A pin 20c is planted in the vicinity of. Swivel holder 20
A protrusion 20a for driving the shutter 103 and opening the shutter 103 of the disc cartridge 102 when the disc cartridge 102 is inserted into the apparatus from a predetermined direction is provided inside the disc cartridge 1.
There is provided a shutter drive piece 20b for driving the shutter 103 while engaging it and closing the head scanning window 102b of the disk cartridge 102 when the 02 is discharged from the apparatus.

The guide drive lever (guide drive means) 22 has a gear portion 22a formed at one end and a pin 22b planted at the other end, and is rotatably supported on the lower surface of the holding member 16. Has been done. A torsion spring 23 is locked between the pin 20c of the rotation holder 20 and the pin 22b of the guide drive lever 22 to connect the rotation holder 20 and the guide drive lever 22 at the time of rotation, and the rotation holder 20. Elastically urges to a predetermined position. The sub base 28 is fixed to the lower surface side of the holding member 16, the solenoid 27 is fixed on the sub base 28, and the arm drive gear 25 that meshes with the gear portion 22 a of the guide drive lever 22 meshes with the arm drive gear 25. A lead screw 26 including an intermediate gear 24, a spiral screw portion 26b meshing with the intermediate gear 24, and a flat gear portion 26a is rotatably supported.

Side plates 31, 42 are fixed to both side surfaces of the holding member 16, and a lifting motor 32 (lifting driving means,
The opening / closing drive means) is fixed, and the lifting gear 35 is rotatably supported. In FIG. 13, a gear plate 30 is a sheet metal member rotatably supported with respect to the axis of the lifting motor 32 of the side plate 31, and an idler gear 34 is rotatably supported. Here, by switching the energization state of the solenoid 27, the gear plate 30 is driven via the switching plate 29, and the lead screw 26
The idler gear 34 is meshed with either the flat gear portion 26a or the elevating gear 35.

3 and 4, the synchronous gears 36 and 43
Is press-fitted into both ends of a synchronous shaft 41 rotatably supported between the two side plates 31 and 42 with the phases of the gears aligned, and the synchronous gear 36 meshes with the elevating gear 35. An intermediate gear 37 that meshes with the synchronous gear 36 and a rack drive gear 38 that meshes with the intermediate gear 37 are rotatably supported by the side plate 31. A cam plate 39 in which a lifting cam groove 40 is formed on the side plate 42
(Substrate moving means) is slidably provided, and the lifting cam groove 4 is provided.
Reference numeral 0 is configured by step processing by the first horizontal groove 40a, the second horizontal groove 40b and the third horizontal groove 40c. A rack gear 39a is formed on the cam plate 39 so as to be meshed with the rack drive gear 38.

Further, the side plate 42 has the synchronous gear 4
An intermediate gear 44 that meshes with the gear 3, and a rack drive gear 45 that meshes with the intermediate gear 44 are rotatably supported.
The side plate 42 has two step-shaped lifting cam grooves 48, 4 symmetrical with the lifting cam groove 40 of the cam plate 39.
A cam plate 47 (base moving means) on which a 9 is formed is slidably provided, and a rack gear 47a is formed on the cam plate 47 so as to be meshed with the rack drive gear 45.
At the lower end of the cam plate 47, an opening / closing cam portion (opening / closing control means) 47b capable of coming into contact with and separating from the pin of the blocking member 62 is formed.

Here, the gear ratio from the synchronous gear 36 on the side plate 31 to the cam plate 39 is set to be the same as the gear ratio from the synchronous gear 43 on the side plate 42 to the cam plate 47. That is, the moving speeds of the cam plates 39 and 47 when the lifting motor 32 is rotationally driven become equal and the synchronization is maintained. The side plate 31 has a first disc 101 and a second disc 1
The guide groove 3 substantially perpendicular to the signal recording surface 104b of 04.
1a is formed, and substantially vertical guide grooves 42a and 42b are also formed in the side plate 42. The elevating pins 1e to 1g of the base 1 are formed in the guide grooves 31 of the sub plates 31 and 42.
a, 42a, 42b are inserted and guided, respectively, and are engaged with the elevating cam grooves 40, 48, 49 of the cam plates 39, 47, respectively.

The raising and lowering pins 1e to 1g of the base 1 are used for the disc cartridge 102 and the second disc 10 for the apparatus.
The first horizontal groove 40 at the first position where the first and second detachable parts 4 can be attached and detached.
a, 48a, 49a, respectively, and the first disk 101 housed in the disk cartridge 102 is placed on the first turntable 8 and the second horizontal position is set at the second position where recording / reproduction is possible. Grooves 40b, 48b, 49
b respectively engaged with the first turntable 8 and the second turntable 8.
The second disc 10 is connected to the turntable 13 of
4 is sandwiched by the second turntable 13 and the clamper 14 and engaged with the third horizontal grooves 40c, 48c, 49c at the third position where recording / reproduction is possible.

A position sensor (position detecting means) 68 is provided on the side plate 31 for detecting the cam plate 39 when the base body 1 is at the first position. Further, when the base body 1 is in the third position, the guide pins 4 and 5 of the base body 1 are provided with the guide holes 16a and 16 provided in the holding means.
and the guide pins 4 and 5 are engaged with the holding member 1 respectively.
The plate springs 23 and 24 provided on the elastic member 6 are elastically biased in a direction substantially parallel to the signal recording surface 101c of the first disk 101 and in a direction substantially perpendicular to the signal recording surface 101c.
Backlash is prevented. Further, when the base body 1 is at the second position, the pressure force of the roller 69 for sucking the disk cartridge 102 into the apparatus in the direction of arrow F and the elasticity of the plate springs 19 and 21 with respect to the base body 1 are set. The biasing force prevents the backlash of the base body 1 with respect to the holding member 16.

Next, the reproducing operation of the first disc 101 will be described. 1 to 8, the holding member 16
Is positioned at a predetermined position in the housing 50 by a lock mechanism (not shown), and the rotary holder 20 is elastically biased in the direction of arrow C so that the disk cartridge 102 can be mounted. Here, the disk cartridge 1
When 02 is inserted from the first opening 50a, the disk cartridge 102 is supported by the fixed holders 17 and 18 and the rotary holder 20, and the roller 69 is rotationally driven by the transport mechanism (not shown), so that the disk cartridge 102 is indicated by the arrow A. Is conveyed in the direction of. When the disc cartridge 102 is conveyed to a predetermined position, the disc conveying operation is stopped, the elevating motor 32 is driven, and the cam plates 39, 4 are passed through the synchronizing gears 36, 43 of the synchronizing shaft 41.
7 is driven in the direction opposite to arrow F (direction of arrow H). At this time, the raising and lowering pins 1e to 1g of the base 1 are connected to the cam plate 3
While being engaged with the lift cam grooves 40, 48, 49 of 9, 47 and the guide grooves 31a, 42a, 42b of the side plates 31, 42, respectively, they are urged in the direction opposite to the arrow F (direction of arrow E). It

The disk cartridge 102 is engaged with the reference pins 2 and 3 of the base body 1, the base body 1 is driven in the direction of arrow E, and the lifting pins 1e to 1g are moved to the second horizontal groove 40.
b, 48b, 49b, respectively, the disk cartridge 102 causes the leaf springs 19, 21 and the roller 6 to move.
The elastic biasing force of 9 presses the bosses 1a to 1f.
At this time, the disc cartridge 102 has the leaf spring 19,
The urging force of the roller 21 and the roller 69 presses the bosses 1a to 1d with a force that does not rattle against external vibration, and the base 1 is pressed against the holding member 16 with a force that does not rattle.

An opening / closing control lever 64 provided on the housing 50
Is the pin 64a as the cam plates 39 and 47 move.
While being kept in contact with the opening / closing cam 47b of the cam plates 39, 47, the elastic biasing force of the torsion spring 23 rotates and biases in the direction opposite to the arrow I (the direction of arrow J), and then separates from the opening / closing cam 47b. . As the open / close control lever 64 and the open / close drive lever 63 rotate, the blocking member 62 is biased in the direction of arrow E, and the first opening 50a of the housing 50 is closed. At this time, the opening / closing control lever 64
The pin 64a is located in the notch 42c of the sub plate 42 and is kept in non-contact with the mechanical component provided on the holding member 16 side. At the same time, the center hole 101b of the first disk 101 is engaged with the centering member 9 by the magnetic attraction force between the hub 101a and the magnet 10, and the spindle 7a is centered. 101
Is pressed against the mounting surface 8a of the first turntable 8 and is kept in a state where the first disk 101 and the inner wall of the disk cartridge 102 are not in contact with each other (FIGS. 5 to 8).
After that, the holding member 16 is released from the positioned state by the lock mechanism (not shown), and is suspended in the housing 50 so as to be free to move.
The disk 101 is driven to rotate, and the pickup 6 records / reproduces an information signal.

In FIGS. 5-8, the second disk 10 is shown.
The clamper arm 66 has an arrow F regardless of whether or not the No. 4 is attached.
The second turntable 13 is restrained from rattling against the holding member 16 by being biased in the direction of. Further, in this state, the second disk 104 is ready to be mounted from the opening 50b of the housing 50, and when mounting the second disk 104, the clamper arm 6
6 is rotated in the direction of arrow E, and the second disk 104 is transported to a predetermined position in the apparatus by a transport mechanism (not shown), the clamper arm 66 is again rotated in the direction of arrow F, and the second The disk 104 is magnetically sandwiched between the clamper 14 and the second turntable 13, and at the same time, the movement of the second turntable 13 with respect to the holding member 16 is suppressed.

Next, from the state shown in FIGS. 1 to 4 to the reproduction operation of the second disc 104, description will be made.

In this state, the second disk 104 is the second
When it is inserted from the opening 50b of the disk 50, it is transported in the direction of arrow A by a transport mechanism (not shown) and positioned at a predetermined position in the apparatus, the disc sensor 67 detects the second disc 104, and a disc mounting signal is generated. The disc transport operation is stopped. At this time, since the base 1 is at the first position, the position sensor 68 causes the cam plate 3 to move.
9 is detected and a first position signal is generated.

13 and 14, the position sensor 68
When the switching plate 29 is driven in the direction of the arrow L (the direction opposite to the arrow K) in response to the first position signal, the gear plate 30 is rotated in the direction of the arrow N. The idler gear 34 is urged to mesh with the spur gear portion 26a of the lead screw 26.

In FIG. 9, when only the rotation holder 20 can be driven, the lift motor 32 is driven to rotate, the rotation holder 20 is rotated in the direction of the arrow D, and is moved to a predetermined position by the stopper 16c. The solenoid 27 is regulated, the energization of the solenoid 27 is cut off, the switching plate 29 is driven in the direction of the arrow K, the gear plate 30 is rotated in the direction opposite to the arrow M,
The idler gear 34 is again meshed with the elevating gear 35.

When the raising / lowering motor 32 is continuously driven to rotate, the cam plates 39 and 47 are driven to move the base 1 to the arrow E.
Is driven in the direction of, and the housing 50 is moved along with the movement of the base 1.
The first opening 50a is closed by the blocking member 62. The elevating pins 1e-1f pass through the second horizontal grooves 40b, 48b, 49b of the cam plates 39, 47, respectively,
When the base body 1 is raised toward the third position, the guide pins 4 and 5 of the base body 1 are guided to the guide holes 16 a and 1 of the holding member 16.
The base 1 is driven while being engaged with 6b. While the base 1 is being guided by the guide holes 16a and 16b, the lifting pin 1
When e to 1f are respectively engaged with the third horizontal grooves 40c, 48c, 49c, the second turntable 13 is coupled to the first turntable 8 by a magnetic attraction force. Here, since the second turntable 13 is pushed up by the first turntable 8, the second turntable 13 is not in contact with the holding member 16, and the spindle motor 7 can be rotationally driven. After that, the holding member 16 is released from the positioning state by the lock mechanism (not shown) and is suspended in the housing 50 so as to be free to move. The spindle motor 7 drives the first disk 101 to rotate, and the pickup 6 causes the holding member 16 to rotate. Information signals are recorded / reproduced.

According to the configuration of this embodiment, the cam plate 3
The first disc 101 and the second disc 104 are moved in order to move the base 1 between the first position, the second position and the third position with respect to the holding member 16 by 9, 47.
The disk cartridge 102 in which the first disk 101 is housed can be attached to and detached from the first opening 50a of the housing 50 without changing the attachment / detachment position, and at the same time, the second disk 104 can be inserted into the second opening 50b. Can be attached and detached.

Further, the lifting pins 1e to 1f of the base body 1 are connected to the first horizontal grooves 40a, 48a, 4 of the cam plates 39, 47.
The cam plate 3 is engaged with each of the 9a.
9 is detected by the position sensor 68, and it is determined that the base body 1 is at the first position. Then, the solenoid 27 is energized to apply the rotational driving force of the lift motor 32 to the cam plates 39, 4.
The rotation driving force is switched from 7 to only the rotation holder 20.

Further, the raising / lowering motor 32 is provided on the holding member 16 provided on the housing 50 via the dampers 52 to 55 and the springs 56 to 59, and the raising / lowering motor 32 drives the cam plate 47 to drive the cam plate 47. The blocking member 62 is driven by the engagement between the opening / closing cam portion 47b and the pin 64a of the opening / closing control lever 64, and the first opening portion 5 of the housing 50 is driven.
The open / closed state of 0a can be controlled.

[0054]

According to the disk drive device of the present invention, at least the first disk accommodates the base body in the holding means supported by the housing of the device through the elastic body or the viscoelastic body. Between the first position where the recorded disk cartridge is removable, the second position where the recording / reproducing of the first disk is possible, and the third position where the recording / reproduction of the second disk is possible. Therefore, the attachment / detachment positions of the first disc and the second disc with respect to the holding means do not change, and the attachment / detachment positions also do not change with respect to the housing-side opening portion into which the medium is inserted. Therefore, it is possible to reduce the thickness of the device and to realize a disc drive device that performs a slot-in type disc loading represented by an on-vehicle deck.

When the base body and the guide means are interlocked,
In order to avoid interference with the base body when the guide means moves, the movement stroke of the base body must be long,
In the present invention, the position detecting means generates the first position signal when the base body is at the first position, and the switching means selectively drives either the base body or the second guide means. The moving stroke can be suppressed to a necessary minimum, and the device can be made thin.

Further, the blocking means is driven by the opening / closing drive means provided in the holding means supported via the elastic body and / or the viscoelastic body with respect to the housing, and the opening / closing state of the opening portion is controlled by the opening / closing control means. To control, the disc cartridge is loaded during playback of the first or second disc,
It is possible to prevent the media and the device from being damaged. Further, since the blocking means is driven by the lifting drive means (opening / closing drive means) provided on the holding means side, it is not necessary to provide the drive means on the housing side, so the number of parts is reduced and the apparatus is simplified. be able to.

[Brief description of drawings]

FIG. 1 is a plan view of a disk drive device of the present invention in a state where a first and a second disk can be attached and detached.

FIG. 2 is a front view of the disk drive device in the same state.

FIG. 3 is a right side view of the same disk drive device in the same state.

FIG. 4 is a left side view of the same disk drive device in the same state.

FIG. 5 is a front view of the same disk drive device in a state in which reproduction of the first disk is possible.

FIG. 6 is a front view of the same disk drive device in the same state.

FIG. 7 is a right side view of the same disk drive device in the same state.

FIG. 8 is a left side view of the same disk drive device in the same state.

FIG. 9 is a plan view showing a state where a second disc can be reproduced in the disc drive device.

FIG. 10 is a front view of the same disk drive device in the same state.

FIG. 11 is a left side view of the same disk drive device in the same state.

FIG. 12 is a right side view of the same disk drive device in the same state.

FIG. 13 is a front view of the disk drive device with an opening opened.

FIG. 14 is a front view of the disk drive device with the opening closed.

FIG. 15 is a left side view showing a state in which the drive is switched to the base moving means in the disk drive device.

FIG. 16 is a left side view showing a state in which drive is switched to guide drive means in the disk drive device.

FIG. 17 is a cross-sectional view showing a disc rotation drive unit in the disc drive device.

[Explanation of symbols]

1 Base 6 Pickup (Recording / Reproducing Means) 7 Spindle Motor (Disk Rotation Driving Means) 8 First Turntable 13 Second Turntable 14 Clamper (Pressing Means) 16 Holding Member (Holding Means) 17, 18 Fixed Holder ( First guide means) 20 Rotating holder (second guide means) 22 Guide drive lever (guide drive means) 27 Solenoid (switching means) 32 Elevating motor (elevating drive means, opening / closing drive means) 39, 47 Cam plate ( Base body moving means, opening / closing control means) 50 Housing 50a Opening portion 62 Blocking member (blocking means) 64 Opening / closing control lever (opening / closing control means) 66 Clamper arm (holding means) 101 First disk 102 Disk cartridge 104 Second disk

Claims (4)

[Claims] 1. A disk rotation driving means capable of rotationally driving a first disk rotatably housed in a disk cartridge and a second disk not housed in a cartridge at the same time by a spindle common to both. A recording / reproducing means for recording / reproducing information on / from the first disk and the second disk; a base body provided with the disk rotation driving means and the recording / reproducing means; and fixed to the spindle. A first turntable that supports the first disc and is rotationally driven integrally therewith, and centers the first disc with respect to the rotation center of the spindle; and the first turntable. Can be coupled / separated to / from the second disk and supports the second disk to obtain rotational driving force from the spindle to drive the second disk integrally with the second disk. A second turntable for centering the second disc with respect to the rotation center of the spindle; a first position where at least the disc cartridge is attachable / detachable; and a recording / reproducing of the first disc. Substrate moving means for movably supporting the substrate between a second position where the disk cartridge can be read and written and a third position where the recording / playback of the second disk is possible, and a method for mounting and removing the disk cartridge. While holding the first guide means for guiding and the second turntable rotatably, the base body, the base body moving means, and the first guide means are attached to the casing of the apparatus. Elastic body, and
Alternatively, a disk drive device including holding means supported via a viscoelastic body. 2. A disk rotation drive means capable of non-simultaneously driving a first disk rotatably housed in a disk cartridge and a second disk not housed in a cartridge or the like by a spindle common to both. A recording / reproducing means for recording / reproducing information on / from the first disk and the second disk; a base body provided with the disk rotation driving means and the recording / reproducing means; and fixed to the spindle. And a first turntable having first centering means for supporting the first disk and being driven to rotate integrally with the first disk to center the first disk with respect to the rotation center of the spindle. And the second turntable can be connected to and detached from the second turntable to support the second disc to obtain a rotational driving force from the spindle. A second turntable that is driven to rotate integrally with the disk and has second centering means for centering the second disk with respect to the center of rotation of the spindle; Substrate moving means for moving the substrate between the first position, the second position capable of recording / reproducing on the first disc, and the third position capable of recording / reproducing on the second disc. And a movable position between a retracted position that does not interfere with the base when the base moves from the first position to the third position and a receiving position where the disk cartridge can be attached and detached. Second guide means for guiding the mounting / dismounting of the disk cartridge, guide drive means for driving the second guide means, and the base body in the first position. It comprises a position detecting means for generating a first position signal, and a switching means for receiving the first position signal from the position detecting means to stop the function of the base body moving means and make the guide driving means function. Disk drive device. 3. The disk drive device according to claim 2, wherein the switching means selectively transmits the driving force from a single driving source to one of the base moving means and the guide driving means. 4. A housing having an opening into which a disc is mounted, a disc rotation driving means for rotationally driving the disc, a recording / reproducing means for recording / reproducing information on / from the disc, and the disc. The substrate is moved between a substrate provided with a rotation driving unit and the recording / reproducing unit, a first position where the disc can be attached / detached, and a second position where the recording / reproduction of the disc can be performed. A base moving means for supporting the base body, an elevating and lowering driving means for driving the base body moving means, the base body, the base body moving means and the elevating and lowering drive means are attached, and an elastic body with respect to the housing; Or a holding means supported via a viscoelastic body, a closed position for preventing the disc from entering through the opening of the housing, and a disc entering through the opening of the housing. Blocking means movably provided between the housing and the open position, the opening / closing driving means provided in the holding means for driving the blocking means, and the base body at least the second position. When
A disk drive device comprising: an opening / closing control means for controlling the blocking means to drive it to the closed position.