JPH087531A - Disk driving device - Google Patents

Abstract

PURPOSE:To obtain a disk driving device capable of driving both of a small- diameter disk housed in a cartridge and a large-diameter disk usable in a disk form. CONSTITUTION:Either of a first transporting roller 69 which transports the disk cartridge 102 freely rotatably housed with a first disk or a second transporting roller 70 for transporting the second disk 104 not housed in the cartridge, etc., is selectively changed over by a roller changing means to transmit the driving power from a transporting driving power source via a transmission means. The driving power from the transporting driving power source is selectively changed over and transmitted to either of the transmitting means and the roller means by a driving changing means.

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.

[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. When this CD is used in a portable CD player, especially 1
The 2 cm CD is large and inconvenient to carry. Also,
When the disc is mounted on the reproducing apparatus, it is directly touched by the hand, so that the surface of the disc becomes dirty or dust is attached, so that there is a problem that a normal reproducing state cannot be obtained. Therefore, a cartridge type mini disc (hereinafter referred to as MD) has been devised in which the outer diameter is made smaller than the diameter of the CD and the disc is built in the cartridge. This MD uses the same recording method as CD, so both discs have the same recording / recording
If they can be attached to the reproducing device (non-simultaneously attached), both recording / reproducing can be performed.

As an example of the above-mentioned recording / reproducing apparatus in which both the CD and MD disks are rotationally driven by a common disk rotational driving means, the cartridge loading of Japanese Patent Application No. 5-167964 previously filed by the present applicant. There is a device.

[0004]

However, in the cartridge loading apparatus disclosed in the specification of Japanese Patent Application No. 5-167964, the holding means holding the second turntable for CD is moved. Because
When attempting to mount a CD through the opening provided on the front panel of the housing, the guide means and the holding means are in an oblique posture when the MD can be attached and detached.
I couldn't wear it. Further, since the operator has to directly attach the MD and the CD to the device, the CD and the MD cannot be automatically loaded into the device.

As a method for automatically loading the MD into the apparatus, a mechanism may be considered in which a pin or the like is engaged with a notch in the MD and pulled in into the apparatus.
Since D has to be provided with a loading mechanism as a guide means, it is necessary in addition to the CD loading mechanism,
The structure becomes complicated and the height of the entire device increases,
In particular, it has been difficult to realize a 1-DIN size (height 50 [mm]) vehicle-mounted deck.

Further, the loading mechanism must be provided at a position where it overlaps with the disk cartridge, and inevitably must be provided at a position where it overlaps with the substrate on which the spindle and pickup are mounted. Therefore, when the substrate is moved to make the CD reproducible, the loading mechanism and the substrate interfere with each other.
The loading mechanism must be retracted to a position where it does not interfere with the substrate.

Further, the substrate is movably supported by the holding means, but when vibration is applied from the outside while the MD is being recorded / reproduced, the substrate rattles against the support member, and this rattling occurs. The vibration causing the sticking may hinder the normal recording / reproducing operation of the MD.

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,
It is an object of the present invention to provide a disk drive device in which each of them is independently loaded and a normal reproducing operation can be obtained even when an external vibration is applied.

[0009]

In view of the above-mentioned drawbacks of the conventional disk loading apparatus, the disk drive apparatus of the first aspect of the present invention rolls the first disk while rotatably contacting the disk cartridge. A second transporting roller for transporting the same into or out of the apparatus, and a second transporting roller for transporting it to the outside of the apparatus and a second disk that is not housed in a cartridge or the like while transporting the second disk into or out of the apparatus. Transport roller, a transport driving source that rotationally drives the first transport roller and the second transport roller, and a transmission unit that transmits the driving force from the transport driving source to the first transport roller and the second transport roller. Roller switching means for switching the transmission means to a roller that selectively transmits the driving force from the transportation drive source to either one of the first transportation roller and the second transportation roller, And it constitutes a drive switching means for transmitting selectively switched to either one of the transmission means and the roller switching means a driving force from a feed drive source.

The disk drive device of the second invention is arranged between the disk cartridge in which the first disk is rotatably housed and the second disk in which the first disk is not housed, and is in rolling contact with the disk cartridge. At the same time, it is disposed between the first transport roller for transporting it into the device or unloading it from the device, the disc cartridge and the second disc, and is in rolling contact with the second disc,
A second transport roller for transporting this into or out of the device, a transport drive source for rotationally driving the first transport roller and the second transport roller, and a transport drive source in either direction. It is composed of a transmission means for transmitting a driving force so that the rotation direction of the first transport roller and the rotation direction of the second transport roller rotate in opposite directions when they are rotated.

A disk drive device according to a third aspect of the present invention is a first disk drive device rotatably housed in a disk cartridge.
Of the first turntable that is driven to rotate integrally with the disc of FIG. 1 and a base on which a pickup for recording / reproducing a signal is mounted, and the first turntable can be coupled and separated. A second turntable for centering and supporting a second disc that is not housed in a cartridge or the like, and a first position where both the first disc and the second disc are attachable to and detachable from the device, A base body for moving the base body to a second position where the first disc can be reproduced and a third position where the first turntable and the second turntable are coupled to each other so that the second disc can be reproduced. While moving in contact with the moving means and the disc cartridge, the first conveyer roller conveys it between the base and the second turntable, or conveys it out of the apparatus, and also in contact with the second disc. To Conveyed to a position spaced from the second turntable to the body, or the unloaded outside the apparatus 2
And the first transfer roller and the second transfer roller are moved to a retracted position that does not interfere with the base when the base moves from the first position to the third position, and the base moves from the third position. It comprises roller switching means for moving the first transport roller and the second transport roller to the receiving position where the disc cartridge and the second disc can be transported when moving to the first position.

A disk drive device according to a fourth aspect of the present invention is the first disk drive device rotatably housed in a disk cartridge.
A first turntable that is rotationally driven integrally with the disk while supporting the disk, a base on which a pickup for recording / reproducing a signal is mounted, and a holding unit that movably supports the base. A substrate moving means for moving the substrate to a holding means, a first position where the first disk is attachable to and detachable from the device, and a second position where the first disk is reproducible; and a disk cartridge. When the base body is in the second position, it is suspended between the first conveying roller, which conveys it into the apparatus while carrying out rolling contact, or carries it out of the apparatus, and the holding means and the first conveying roller. It is composed of an elastic urging means for elastically urging the first conveying roller against the disk cartridge and pressing the disk cartridge against the substrate.

[0013]

The disk drive device of the first invention described above,
The drive force from the transport drive source is selectively switched to either the first transport roller or the second transport roller by the roller switching means via the transmission means, and the drive force from the transport drive source is switched to the drive switching means. Thus, either the transmission means or the roller switching means can be driven. Therefore, 1
One transport drive source can drive the other transport roller to load the other disc into the device while keeping the one rolling contact roller in contact with the one disc in the device.

In the disk drive device of the second invention, the first carrying roller and the second carrying roller are arranged between the second disk and the disk cartridge in which the first disk is rotatably accommodated. However, when the transport drive source is rotated in either direction, the first transport roller and the second transport roller rotate in opposite directions, so that whichever of the disc cartridge and the second disc is installed in the device. Even when inserted, loading can be performed without switching the rotation direction of the transport drive source.

Further, in the disk drive apparatus of the third invention, the third base is such that the second disk can be reproduced from the first position where the first disk and the second disk can be attached to and detached from the apparatus. When moving between the positions, the first transport roller and the second transport roller are moved to the retracted position where they do not interfere with the base body, and when the base body moves from the third position to the first position, The first transport roller and the second transport roller can be set to the receiving position where the disc cartridge and the second disc can be transported.

Further, in the disk drive device of the fourth invention, when the substrate is in the second position where the first disk housed in the disk cartridge can be reproduced, the elastic biasing means causes the first conveying roller to move. It is possible to elastically urge the disk cartridge and press the disk cartridge against the base body to eliminate backlash of the base body with respect to the holding means.

[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.

FIG. 1 is a plan view of the disk drive device according to an embodiment of the present invention in a state where the first and second disks are attachable / detachable, FIG. 2 is a front view in the state of FIG. 1, and FIG. 4 is a right side view of the substrate elevating mechanism in the state of FIG. 4, FIG. 4 is a left side view of the substrate elevating mechanism in the state of FIG. 1, FIG. 5 is a left side view of the disc transport mechanism in the state of FIG. 1, and FIG. FIG. 7 is a left side view of the lock mechanism of the embodiment in the locked state, FIG. 7 is a front view of the first embodiment when the first disc is reproducible, and FIG. 8 is a right side view of the base lifting mechanism in the state of FIG. Figure,
9 is a left side view of the base lifting mechanism in the state of FIG. 7, FIG.
11 is a left side view of the disc transport mechanism in the state of FIG. 7, FIG.
Is a left side view of the lock mechanism in the unlocked state according to the present embodiment, FIG. 12 is a plan view of the second disc in the present embodiment in a reproducible state, and FIG. 13 is a front view of the state shown in FIG. FIG. 14 is a left side view of the disc transport mechanism in the state of FIG. 12, FIG. 15 is a left side view of the substrate raising / lowering mechanism of the present embodiment in which the second disc is held, and FIG. 16 is of the present embodiment. Second in the disk transport mechanism
17 is a left side view of the disc in the reproducing state, FIG. 17 is a left side view of the substrate elevating mechanism in the state of FIG. 16, FIG. 18 is a right side view of the substrate elevating mechanism in the state of FIG. 16, and FIG. 2 is a front view of the example in which the opening is opened, FIG. 20 is a front view of the example in which the opening is closed, and FIG.
FIG. 1 is a cross-sectional view showing a disk rotation drive unit in this embodiment.

First, with reference to FIG. 21, a description will be given of the disk used in the present apparatus and the rotary drive section of the disk. The first disc (first disc) 101 has a center hole 101 with a diameter of 11 mm for centering the spindle 7a of the spindle motor 7 in the center.
b is formed, and a magnetic hub 101a is fixed to a position facing the central hole 101b. Also, the signal recording surface 1
01c supports the first disk 101 on a surface opposite to the surface 01c, and a support surface 101d parallel to the signal recording surface 101c.
Are formed.

The first disc 101 is housed in a disc cartridge 102 having a box shape. 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 the pickup 6 (not shown).
Head scanning window 1 for recording / reproducing signals by
02b is formed. A shutter 103 is slidably provided on the disk cartridge 102 to open and close the head scanning window 102b.

The second disk (second disk) 104 has a central hole 104a having a diameter of 15 mm for centering with respect to the spindle 7a of the spindle motor 7, and is opposite to the signal recording surface 104b. The second disk 104 is supported on the side surface, and a support surface 104c parallel to the signal recording surface 104b 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 is the support surface 1 of the first disk 101.
01d is the mounting surface 8a on which it is mounted while being in contact therewith. The mounting surface 8a is configured 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,
It has a very 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 collar portion of the back yoke 11 contacts the top portion of the centering member 9 to prevent the centering member 9 from falling out of the inside of the first turntable 8.

When recording / reproducing the first disc 101, when the first disc 101 is placed on the placing surface 8a of the first turntable 8, the hub 1 of the first disc 101 is placed.
The support surface 101d of the first disk 101 is pressed against the mounting surface 8a by the magnetic attraction between 01a and the magnet 10 of the first turntable 8. In addition, 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, since the outer peripheral surface of the centering member 9 is positionally regulated by the inner wall of the first turntable 8 so as to take an accurate concentric position with respect to the spindle 7a, the first disk 101 that engages with this is regulated. The central hole 101b is also concentric with the spindle 7a. As a result, the first disk 101 is centered on the spindle 7a.

In FIG. 21, the disc-shaped second turntable 13 has a second disk 10 on one side near the outer periphery.
4 is formed with a mounting surface 13a that supports and supports the fourth supporting surface 104c. An engagement hole 13d (first engagement means) slightly larger than the diameter of the spindle 7a is formed in the center of the second turntable 13. Further, the engagement hole 13 is formed in the center of the second turntable 13.
The conical tapered portion 13e that is exactly concentric with d, and the cylindrical centering portion 13f that is exactly concentric with the engaging hole 13d that is slightly larger than the diameter of the center hole 104a of the second disk 104 are the tapered portion 13e. Are formed continuously.
A crimping surface 13b is formed in the vicinity of an inner peripheral portion of the second turntable 13 opposite to the mounting surface 13a, and the crimping surface 13b is formed in parallel to the mounting surface 13a, and is connected to the first turntable 8. At this time, the crimping surface 13b is crimped and supported by the mounting surface 8a of the first turntable 8. As a result, the second disk 104 placed on the placement surface 13 a of the second turntable 13 is placed on the placement surface 8 of the first turntable 8.
It is supported parallel to a, that is, perpendicular to the spindle 7a.

The clamper 14 is formed with an engagement pin 14b which is engageable with the engagement hole 13d of the second turntable 13, and the outer peripheral shape of the clamper 14 is a precise concentric shape with respect to the engagement pin 14b. Is made. 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 is rotatably held at the tip of a clamper arm (oscillating means) 66. .

When recording / reproducing the second disk 104, the second turntable 13 is placed on the first turntable 8, and the spindle 7a protruding from the first turntable 8 is projected. Second turntable 1
The engaging holes 13d of No. 3 are engaged with each other to perform centering, and the clamper 1 is engaged with the engaging hole 13d of the second turntable 13.
The four engaging pins 14b are engaged with each other to perform 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, by the magnetic attraction force between the magnetic portion 13c of the second turntable 13 and the magnet 10 of the first turntable 8, the crimping surface 13b of the second turntable 13 is moved to the first turntable 8 by the magnetic attraction force.
It is pressure-bonded to the mounting surface 8a.

Here, when the second disc 104 is mounted on the second turntable 13, the center hole 104a of the second disc 104 is guided by the taper portion 13e and engages with the guide portion 13f, so that the second disc 104 is engaged. Is centered on the spindle 7a. Here, the clamper 14
The second turntable 1 by the clamper arm 66
When driven in the direction 3, the second disk 104 is placed on 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. Surface 13a and clamper 14
It is clamped between the crimping surface 14a and the crimping surface 14a. At this time, since the engaging hole 13d of the second turntable 13 engages 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 unbalance when driven to rotate.

Next, the substrate moving means for the substrate 1 in this apparatus will be described with reference to FIGS. 1 and 2, a spindle motor 7 for rotating and driving a first disk 101 and a second disk 104 is fixed to a substrate 1, and a pickup 6 for recording / reproducing information is indicated by an arrow B in FIG. It is supported so that it can reciprocate in any direction. A disc cartridge 10 is provided on the upper surface of the base 1.
The disc cartridge 10 is formed with bosses 1a to 1d for holding the pickup 2 at a predetermined height with respect to the pickup 6.
Positioning pins 2 and 3 for engaging with and positioning the two positioning holes (not shown by numbers) are planted in the bosses 1a and 1b, respectively. In order to guide / position the base member 1 with respect to the holding member (holding means) 16 when performing the raising / lowering operation of the base member 1 outside the outer peripheral portion of the second disk 104 mounted on the second turntable 13. Guide pins 4 and 5 are planted on the base plate 1, 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.
A first opening 50a into which a disc cartridge 102 that rotatably accommodates the disc 101 is inserted and ejected;
The second opening 5 into which the second disk 104 is inserted and ejected
0b is formed. In order to prevent dust from entering from the outside, a mouse lid 60 that normally closes the first opening 50a is rotatably provided inside the first opening 50a, and a second lid 50b 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.

3 and 19, a frame 51 is fixed inside the housing 50, and the first opening 5 of the housing 50 is fixed.
A blocking member 62 is provided rotatably with respect to the frame 51 so as to open and close a part of 0a. A spring 63 is locked to one end of the blocking member 62, and the blocking member 62 is elastically biased in the direction of arrow E (the direction opposite to the arrow F) so as to close the first opening 50a. An engaging pin 62a is implanted to rotate the 62. The opening / closing control lever 64 is rotatably provided on the right side surface of the frame 51, and the engaging portion 64 a at one end thereof is provided with the engaging pin 62 of the blocking member 62.
The pin 64b is planted at the other end of the pin 64b.

1 to 4, the holding member 16 is suspended from the frame 51 by springs 56 to 59, and dampers 52 to 55 made of butyl rubber or the like in which a viscous fluid is injected are attached to the frame 51. The pins (not shown by numbers) of the holding member 16 are immersed in the dampers 52 to 55. The holding member 16 is suspended movably within a predetermined range with respect to the frame 51 fixed to the housing 50 by a vibration isolating member composed of the springs 56 to 59 and the dampers 52 to 55, and is affected by external vibration. Has been eased. In addition, the first disk 101 and the second disk 10
When the attaching / detaching operation of 4 is performed, the holding member 16 is positioned at a predetermined position in the housing 50 by a lock mechanism described later. That is, 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 that has been transported to a predetermined position in the apparatus by a transport mechanism (not shown).

A U-shaped fixed holder 17 is fixed to the lower surface side of the holding member 16 and holds one side surface portion of the disk cartridge 102 while holding the disk cartridge 102.
Carry out transportation guidance. A leaf spring 19 for pressing the disc cartridge 102 from above is attached to the upper surface side of the fixed holder 17, and comes into contact with the disc cartridge 102 when it is inserted from a direction other than a predetermined direction to prevent the disc cartridge 102 from being attached to the device. The protruding piece 17 a is formed on the inner side surface of the fixed holder 17. Further, the fixed holder 17 is provided with a disk sensor 111 for detecting the completion of mounting the disk cartridge 102. The rotation holder 20 is made of a non-magnetic material and serves to guide the conveyance of the disc cartridge 102 while holding the other side surface portion of the disc cartridge 102, and should be rotated at the same height as the fixed holder 17. It is pivotally supported on the lower surface side of the holding member 16.

The rotary holder 20 is the disk cartridge 1
02 is rotated between a receiving position capable of receiving 02 and a retracted position that does not interfere with the movement range of the base body 1, and is rotated by the spring 23 in the direction of arrow C (FIG. 1) at the receiving position and in the direction of arrow D at the retracted position. (Fig. 12) is elastically biased. Here, at the receiving position, the guide plate 30 fixed between the side plates 31 and 42 keeps the tip end of the rotating holder 20 at a predetermined rotating position and at a predetermined height. Since the rotation holder 20 is made of a non-magnetic material,
When the rotation holder 20 rotates and passes over the magnet 10 provided on the first turntable 8, the rotation holder 20 is not magnetically attracted. A leaf spring 21 that presses the disc cartridge 102 from above is attached to the upper surface side of the rotation holder 20, and a pin 20c is planted near the leaf spring 21. Inside the rotation holder 20,
A protruding piece (shutter opening / closing drive means) 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 device from a predetermined direction is provided, and the disc cartridge 102 is ejected from the device. When the disc cartridge 10 is driven, the shutter 103 is driven while being engaged.
A shutter driving piece 20b for closing the second head scanning window 102b is provided.

The guide drive lever 22 is rotatably supported on the lower surface side of the holding member 16, a gear portion 22a is formed at one end thereof, and a pin 22b is planted at the other end thereof. A groove 22c is formed so as to engage with the pin 20c of 20. A spring 23 is locked between the pin 20c of the rotary holder 20 and the pin 22b of the guide drive lever 22, and elastically urges the rotary holder 20 to a predetermined position during rotation. The sub-base 28 is fixed to the lower surface side of the holding member 16, and the rotation motor 27 into which the lead screw 26 is press-fitted is fixed on the sub-base 28, and the arm drive gear 2 that meshes with the gear portion 22 a of the guide drive lever 22.
5, arm drive gear 25 and lead screw 26
An intermediate gear 24 that meshes with is rotatably supported.
Side plates 31 and 42 are fixed to both side surfaces of the holding member 16, an elevation motor 32 in which a motor gear 33 is press-fitted is fixed to the side plate 31, and an elevation gear 35 is rotatably supported.

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 a 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 4 symmetrical with the lifting cam groove 40 of the cam plate 39.
A cam plate 47 (base moving means) on which 8, 49 are formed is slidably provided, a rack gear 47a is formed on the cam plate 47 so as to be meshed with the rack drive gear 45, and a lower end of the cam plate 47 is formed. An opening / closing cam portion 47b is formed which can be brought into contact with and separated from the pin of the blocking member 62.

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 includes a first disc 101 and a second disc 104.
Guide groove 31a substantially perpendicular to the signal recording surface 104b of
And the side plate 42 is also formed with substantially vertical guide grooves 42a and 42b.
e to 1g are guide grooves 31a of the sub plates 31 and 42,
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 104 to the apparatus.
The first horizontal groove 40 at the first position where the first horizontal groove 40 can be attached and detached.
a, 48a, 49a, respectively, and the first disk 101 housed in the disk cartridge 102 is the first
Of the second horizontal grooves 40b, 48b, 49b at the second position where they can be recorded / reproduced on the turntable 8 of
At a third position where the first turntable 8 and the second turntable 13 are coupled to each other and the second disk 104 is sandwiched between the second turntable 13 and the clamper 14 to enable recording / reproduction. At the third horizontal grooves 40c, 48c, 49c, respectively.

When the substrate 1 is in the third position,
The guide pins 4, 5 of the base body 1 are engaged with the guide holes 16a, 16b provided in the holding means, respectively, and the guide pins 4, 5
Is elastically biased in a direction substantially parallel to the signal recording surface 101c of the first disk 101 and a direction substantially perpendicular to the signal recording surface 101c of the first disk 101 by the leaf spring 18 provided on the holding member 16 to prevent backlash of the base 1 with respect to the holding member 16. It Further, the base 1 is the second
When it is in the position, by the pressure force in the direction of arrow F of the first conveying roller 69 for sucking the disk cartridge 102 into the apparatus, and the elastic biasing force of the leaf springs 19 and 21 against the base body 1, Rattling of the base member 1 with respect to the holding member 16 is prevented.

Next, referring to FIGS. 1 to 5, in the present apparatus, the disc cartridge 102 and the second disc 1 will be described.
The loading mechanism 04 will be described. The first carrying roller (first carrying roller) 69 is in contact with the upper surface of the disc cartridge 102 and is a rubber roller 6 for carrying.
9a is inserted through the roller shaft 69b, and is disposed between the loading plate 29 fixed to the sub plate 31 and the sub plate 42. The second carrying roller (second carrying roller) 70 is a drum-shaped rubber roller 70a having a central diameter smaller than the outer circumference for contacting with the lower surface of the second disk 104 and carrying, and is inserted into the roller shaft 70b. It is arranged between the plate 29 and the sub-plate 42. The first roller gear 83 is press-fitted into one end of the roller shaft 69b, and the second roller gear 84 is press-fitted into one end of the roller shaft 70b. Roller support plates (support members) 74 and 75 are slidably provided on the loading plate 29 and the side plate 42, respectively, and drive pins 74b are planted on the roller support plate 74.

Synchronous gears 78 and 79 are provided at both ends of a synchronous shaft 80 which is rotatably supported between the loading plate 29 and the side plate 42, and meshes with the rack gears 74a and 75a of the roller support plates 74 and 75, and the left and right sides are engaged with each other. The roller support plates 74 and 75 are kept in synchronization. A first transport roller 69 is rotatably provided on the roller support plates 74 and 75, and a second transport roller 70 is swingably and rotatably supported by swing levers 76 and 77. The first transport roller 69 and the second transport roller 70 are movably held in guide grooves 29a and 42c formed in the loading plate 29 and the side plate 42, respectively. Torsion springs (elastic biasing means) 81 and 82 are suspended between the first transport roller 69 and the swing levers 76 and 77 to resiliently bias the first transport roller 69 against the base body 1. 2 The conveying roller 70 is elastically biased against the disc guide 128. One end of the spring 97 is locked to the synchronous gear 78 and the other end thereof is the loading plate 2.
9, the loading plate 29 is elastically biased in the direction opposite to the arrow A (direction of arrow H).

A worm gear 72 is attached to the loading plate 29, and a conveying motor (conveying drive source) 71 in which a worm gear 72 is pressed into the motor shaft and a solenoid (drive switching means) 73 for switching modes are attached. This solenoid 73 is a double-hold type, and when energized in the positive direction, arrow A
The head (not shown by a number) is sucked in the direction of, and the holding state is released when the negative current is applied, and the head is sucked in the direction of arrow H.

The driving gear 85 is the loading plate 29.
Is rotatably supported by and is meshed with the worm gear 72. The drive switching lever 86 is swingably supported by the loading plate 29, has a cam groove 86a formed at one end thereof, and the drive gear 8 is provided at the swing center of the drive switching lever 86.
5, an intermediate gear 87 is rotatably supported so as to mesh with the gear 5, and a drive rolling gear 99 that is swung around the intermediate gear 87 and meshes with the intermediate gear 87 is rotatably supported.

A roller rolling lever (transmitting means) 88 is pivotally supported by the loading plate 29 so that the roller rolling lever 88 can be meshed with the driving rolling gear 99 and the lever gear 89 which meshes with the lever gear 89. A two-roller rolling gear 92, a transmission gear 90, and a first roller rolling gear 91 that meshes with the transmission gear 90 are rotatably supported. The transmission gear 90 includes a first transport roller 69 and a second transport roller 70.
(Not shown in the present embodiment) by simultaneously driving the first roller rolling contact gear 91 and the second roller rolling contact gear 92,
Whichever of the first disk 101 and the second disk 104 is mounted in the housing 50, the loading can be performed smoothly.

The arm 94 is rotatably provided around a support shaft of the lever gear 89, and a pin 94a engaging with the cam groove 86a of the drive switching lever 86 is planted at one end thereof.
An engaging portion 94b engaging with the solenoid 73 is provided at the other end.
Is provided and is elastically urged to rotate by a torsion spring 98. The stopper 96 is rotatably provided on the loading plate 29, a pin 96a is planted at one end thereof, and is elastically urged by a torsion spring 98 to rotate. Roller switching lever (roller switching means) 9
5 is slidably supported on the loading plate 29,
A rack gear 95a meshed with and driven by the mode gear 93
A cam portion 95b for engaging and driving the drive pin 88a of the roller rolling lever 88, and the clamper arm 66.
Cam portion 9 that engages with the drive pin 66a of the above and swings it
5c and a lock cam 95d that can be engaged with the pin 96a of the stopper 96 are provided.

Next, the floating lock mechanism in this apparatus will be described with reference to FIGS. 3, 6 and 17 and 18. The lock drive lever 121 has a V-shaped lock groove 121 that engages with the lock pin 51e at one end.
A sheet metal member having a formed therein is slidably provided on the side plate 42, and is elastically biased in the direction of arrow A by a spring 123. The lock follow lever 122 has a V-shaped lock groove 1 that engages with the lock pin 51e at one end thereof.
22a is formed and a pin 122b is planted at the other end of the sheet metal member, and is rotatably supported by the side plate 42. The lock drive lever 124 is formed with a V-shaped lock groove 124a that engages with the lock pin 51c at one end and a V-shaped lock groove 124a that engages with the lock pin 51d at the other end.
A lock plate 34 fixed to the loading plate 29 is a metal plate member having a V-shaped lock groove 124b.
And is elastically biased by a spring 127 in the direction opposite to the arrow A (the direction of arrow H). The lock follow lever 125 is a sheet metal member in which a V-shaped lock groove 125a that engages with the lock pin 51c is formed at one end and a pin 125b is planted at the other end. It is pivotally supported. The lock drive lever 124 is interlocked with the lock drive lever 121 by a lock synchronization lever 65 rotatably provided on the sub base 28.

Next, the reproducing operation of the first disc 101 will be described. As shown in FIG.
Is positively energized, the arm 94 is driven in the direction of arrow A, the cam groove 86a of the drive switching lever 86 and the pin 94a are engaged to rotate the drive switching lever 86, and the drive rolling gear 99 is set to the mode. It is meshed with the gear 93.
Here, the conveyance motor 71 is energized and the roller switching lever 95 is energized.
Is driven to the position shown in FIG. 5 in the direction of arrow A, and the solenoid 73 is negatively energized, whereby the roller switching lever 95 is rotated in the direction of arrow H and the drive rolling gear 99 meshes with the lever gear 89. To be done. In this state, the roller rolling contact lever 88 is rotated by the cam groove 95b of the roller switching lever 95, and the first roller rolling contact gear 91 is meshed with the first roller gear 83 as shown in FIG.

Further, as shown in FIG. 6, the connecting lever 126 is driven by the lock drive lever 124, the lock drive lever 124 is driven in the direction of arrow A, and the lock pin 51 d of the frame 51 locks the lock drive lever 124. The lock pin 51c is locked in the groove 124b, and is locked between the lock groove 124a of the lock drive lever 124 and the lock groove 125a of the lock follow lever 125. At the same time, as shown in FIG. 3, the lock synchronizing lever 65 drives the lock driving lever 121 in the direction of the arrow H, so that the lock pin 51e of the frame 51 is locked.
The lock groove 121a of No. 1 and the lock groove 122a of the lock follow lever 122 are locked. When the lock pins 51c to 51e are locked as described above, the base 1
Is positioned at a predetermined position in the housing 50. Also, FIG.
At, the rotation holder 20 is elastically biased in the direction of arrow C, and the disk 101 can be mounted in the housing 50.

Here, when the disc cartridge 102 is inserted from the first opening 50a, the fixed holder 17 and the rotary holder 20 cause the disc cartridge 10 to move.
2 is supported, the first transport roller 69 is rotationally driven by the transport motor 71, and the disc cartridge 102 is transported in the direction of arrow A. When the disc sensor 111 detects the disc cartridge 102, the disc carrying operation is stopped. Since the first carrying roller 69 is not in contact with the shutter 103, the shutter 103 does not damage the first carrying roller 69 even when the first carrying roller 69 idles on the disk cartridge 102. The lifting motor 32 is driven to drive the synchronous shaft 4.
1 through the synchronous gears 36 and 43, the cam plates 39 and 47
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 body 1 are attached to the cam plate 3
Lifting cam grooves 40, 48, 49 of 9, 47 and guide grooves 31a, 42a, 42b of the side plates 31, 42.
While being engaged with each other, they are urged in the direction opposite to the arrow F (direction of arrow E).

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.
When the disc cartridge 102 is engaged with each of b, 48b, 49b, the elastic force of the leaf springs 19, 21 and the first conveying roller 69 causes the disc cartridge 102 to move to the bosses 1a to 1d with a force that does not rattle against external vibration. Crimped and
The base 1 is pressure-bonded to the holding member 16 with a force that does not rattle.

In FIGS. 8 and 20, the opening / closing control lever 64 provided on the housing 50 is the cam plates 39, 4
7, the pin 64a moves with the cam plates 39, 47.
While being kept in contact with the opening / closing cam 47b, it is rotationally biased in the direction of arrow I (the direction opposite to arrow J) by the elastic biasing force of the spring 63, and then separated from the opening / closing cam 47b. When the opening / closing control lever 64 rotates, the blocking member 62
Is urged in the direction of arrow L, and the first opening 5 of the housing 50 is
0a is closed. At this time, the pin 64a of the opening / closing control lever 64 is not in contact with the opening / closing cam 47b of the cam plate 47. At the same time, the first disk 101 is the hub 10
The magnetic attraction between the magnet 1a and the magnet 10 causes the center hole 101b to engage with the centering member 9 to center the spindle 7a, so that the first disk 101 is mounted on the first turntable 8. The first disk 101 and the inner wall of the disk cartridge 102 are kept in contact with each other by being pressed against the mounting surface 8a (FIG. 7).

Thereafter, as shown in FIGS. 9 and 10,
The solenoid 73 is positively energized, the driving rolling gear 99 is meshed with the mode gear 93, and the roller switching lever 95 is driven in the direction of arrow H, whereby the connecting lever 126
The drive of the lock drive lever 124 is released, and the lock drive lever 124 is driven in the direction of the arrow H by the spring 127, and the locked state of the lock pins 51c and 51d is released. At the same time, as shown in FIG. 8, the lock driving lever 121 is also driven by the lock synchronization lever 65, and the locked state of the lock pin 51e is released. As described above, the base body 1 is released from the positioning state by the lock mechanism, is suspended in the housing 50 so as to be free to move, the first disk 101 is rotationally driven by the spindle motor 7, and the information by the pickup 6 is obtained. Signal recording /
Playback is performed.

In this state, the pin 6 of the clamper arm 66 is
6a is engaged with the cam groove 95c of the roller switching lever 95 to urge the clamper arm 66 to rotate in the direction of arrow F and prevent the second turntable 13 from rattling with respect to the holding member 16. Has been done. When the second disk 104 has already been loaded from the opening 50b of the housing 50, the second disk 104 is pressed by the second transport roller 70 against the clamper 14 and the disk guide 128, as shown in FIG. Thus, it is positioned at a predetermined position with respect to the base body 1 and is restrained from rattling.

Next, the reproducing operation of the second disc 104 will be described with reference to FIGS. From the state shown in FIG. 9, the second disk 104 has the opening 50 of the housing 50.
14, the roller switching lever 95 rotates the roller rolling contact lever 88, the second roller rolling contact gear 92 meshes with the second roller gear 84, and the second transport roller 70 is mounted. Only the rotation is driven. The second disc 104 includes the second transport roller 70 and the disc guide 1.
It is driven in the direction of arrow A while being sandwiched between 28 and is energized to the carry motor 71 when detected by the disk sensor 67. When the rotation motor 27 is rotationally driven from the state where the base body 1 is located at the lowermost position, the rotation holder 20 is rotated in the direction of the arrow D to be restricted from moving at a predetermined position, and the solenoid 73 is positively energized. , Drive rolling gear 9
9 is meshed with the mode gear 93.

After that, when the conveyance motor 71 is energized and the roller switching lever 95 is driven in the direction of arrow H, FIG.
, The clamper arm 66 is rotated in the direction of arrow F to hold the second disk 104, and the second transport roller 7 is held.
0 is pressed in the direction of arrow F. Thereafter, when the roller switching lever 95 is continuously driven in the direction of arrow H, the drive pin 74b of the roller support plate 74 causes the roller switching lever 95 to move.
Driven in the direction of the arrow H, and the first transport roller 69 and the second transport roller 70 are integrally driven, as shown in FIGS.
The state becomes as shown in.

From this state, when the elevating motor 32 is rotationally driven, the cam plates 39 and 47 are driven to drive the base body 1 in the direction of arrow E, and the first movement of the base body 1 causes the housing 50 to move to the first position. The opening 50a is closed by the blocking member 62. The lift pins 1e to 1f are attached to the cam plates 39 and 4
When the base body 1 is raised toward the third position after passing through the second horizontal grooves 40b, 48b, 49b of the base body 7, the guide pins 4 and 5 of the base body 1 are guided into the guide holes 16 of the holding member 16.
The base 1 is driven while being engaged with a and 16b. Base 1
While being guided by the guide holes 16a and 16b, the lifting pins 1e to 1f move to the third horizontal grooves 40c, 48c and 49c.
Respectively, the second turntable 13 is coupled to the first turntable 8 by magnetic attraction. 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 locked by the lock mechanism by the same operation as described above.
The locked state of e is released, the state is suspended movably with respect to the housing 50, the first disk 101 is rotationally driven by the spindle motor 7, and the recording / reproducing of the information signal is performed by the pickup 6.

As described above, according to the configuration of this embodiment,
By the roller switching lever 95, the first transport roller 69 and the second transport roller 69
Either one of the transport rollers 70 can be selectively switched, and the second disc 104 can be loaded / unloaded in / from the device while the first transport roller 69 holds the disc cartridge 102 in the device.

Further, the first carrying roller 69 and the second carrying roller 70 are arranged between the disk cartridge 102 and the second disk 104, and the first carrying roller 69 and the second carrying roller 70 are connected to each other by the carrying motor 71. The drive transmission is performed so that when they are rotated in the directions of 1 and 2, they rotate in the opposite directions.

Further, the first transport roller 69 and the second transport roller 70 are driven and retracted by the roller switching lever 95 to a position where they do not interfere with the path along which the substrate 1 moves, so that the substrate 1 can be reproduced on the second disk 104. It can be moved to a third position.

Further, when the first disc 101 housed in the disc cartridge 102 is being reproduced, the first conveying roller 69 is elastically biased by the torsion springs 81 and 82, so that the disc cartridge 102 is made into the substrate 1. Since the base member 1 is pressed against the holding member 16, the base member 1 does not rattle.

[0062]

As is apparent from the description of the above embodiment, in the disk drive apparatus of the present invention, the driving force from the transport drive source is selected by the roller switching means from either the first transport roller or the second transport roller. By selectively switching to one side, it is possible to load the other disc into the device by driving the other transport roller while keeping one rolling roller in contact with one disc in the device. , A disk cartridge in which the first disk is rotatably housed with a simple structure and a second disk which is not housed in a cartridge or the like
Both discs can be loaded.

Further, the first carrying roller and the second carrying roller are arranged between the second disk and the disk cartridge in which the first disk is rotatably accommodated, and the carrying drive source is provided in either direction. Since the first transport roller and the second transport roller rotate in opposite directions when rotated to each other, no matter which of the disc cartridge and the second disc is inserted into the device, the rotation direction of the transport drive source is increased. The loading can be performed without switching.
Furthermore, since the first carrying roller and the second carrying roller can be arranged at substantially the same height, it is possible to provide a disk drive device having a thin structure.

When the substrate moves between the first position where the first disc and the second disc can be attached to and detached from the device, and the third position where the second disc can be reproduced, Since the first transport roller and the second transport roller are moved to the retracted position where they do not interfere with the substrate, the first turntable and the second turntable can be engaged, and discs of two different types of formats can be loaded. It can be reproduced with one spindle.

Further, when the substrate is in the second position where the first disc accommodated in the disc cartridge can be reproduced, the elastic urging means elastically urges the first conveying roller to the disc cartridge. By pressing the disk cartridge against the base, the backlash of the base with respect to the holding means can be eliminated, and the adverse effect on the recording / reproducing operation of the first disk due to the backlash can be prevented.

[Brief description of drawings]

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

FIG. 2 is a front view in the state of FIG.

FIG. 3 is a right side view of the substrate lifting mechanism in the state of FIG.

FIG. 4 is a left side view of the substrate elevating mechanism in the state of FIG.

5 is a left side view of the disc transport mechanism in the state of FIG. 1. FIG.

FIG. 6 is a left side view of the lock mechanism according to the present embodiment in a locked state.

FIG. 7 is a front view showing a state where the first disc can be reproduced in the present embodiment.

8 is a right side view of the substrate elevating mechanism in the state of FIG. 7.

9 is a left side view of the substrate lifting mechanism in the state of FIG.

10 is a left side view of the disc transport mechanism in the state of FIG.

FIG. 11 is a left side view of the lock mechanism according to the present embodiment in an unlocked state.

FIG. 12 is a plan view showing a state where the second disc can be reproduced in this embodiment.

FIG. 13 is a front view in the state of FIG.

14 is a left side view of the disc transport mechanism in the state of FIG.

FIG. 15 is a second view of the substrate elevating mechanism according to the present embodiment.
Left side view with the disc in place

FIG. 16 is a left side view of the second disc in the disc transport mechanism according to the present embodiment in a reproducing state.

FIG. 17 is a left side view of the substrate lifting mechanism in the state of FIG.

FIG. 18 is a right side view of the substrate elevating mechanism in the state of FIG.

FIG. 19 is a front view showing a state in which an opening is opened in this embodiment.

FIG. 20 is a front view of the present embodiment with the opening closed.

FIG. 21 is a cross-sectional view showing a disk rotation drive unit in this embodiment.

[Explanation of symbols]

 1 Base 6 Pickup (Recording / Reproducing Means) 7 Spindle Motor 8 First Turntable 13 Second Turntable 16 Holding Member (Holding Means) 32 Lifting Motor 39, 47 Cam Plate (Base Moving Means) 50 Housing 66 Clamper Arm (oscillating means) 71 Transport motor (transport drive source) 73 Solenoid (drive switching means) 81, 82 Torsion spring (elastic biasing means) 88 Roller rolling lever (transmission means) 95 Roller switching lever (roller switching means) 101 first disc 102 disc cartridge 104 second disc

Claims (5)

[Claims] 1. A first transport roller for transporting the first disc into the device while rotating the disc cartridge rotatably accommodated therein, or for carrying it out of the device, and is not accommodated in a cartridge or the like. A second transport roller that rolls on the second disc and transports the second disc into or out of the device, and a transport that rotationally drives the first transport roller and the second transport roller. A driving source; a transmission unit that transmits the driving force from the transport driving source to the first transport roller and the second transport roller; and the driving force from the transport drive source with the first transport roller and the first transport roller. A roller switching unit that switches the transmission unit so as to selectively transmit to one of the second conveyance rollers, and a driving force from the conveyance driving source of the transmission unit and the roller switching unit. Disc drive apparatus comprising a drive switching means for transferring selectively switched Chiizure or the other to. 2. A first disc is arranged between a disc cartridge in which the first disc is rotatably accommodated and a second disc which is not accommodated in a cartridge or the like, and while being in rolling contact with the disc cartridge, it is conveyed into the apparatus, Alternatively, a first transport roller that carries out the device to the outside of the device, and a first transport roller that is disposed between the disc cartridge and the second disc and is in rolling contact with the second disc while transporting the second disc into the device, or A second transport roller that is carried out of the apparatus, a transport drive source that rotationally drives the first transport roller and the second transport roller, and when the transport drive source is rotated in either direction. A disk drive including a transmission unit that transmits a driving force to rotate the first transport roller and the second transport roller in opposite directions. Device. 3. A first turntable that supports a first disk rotatably housed in a disk cartridge and is rotationally driven integrally with the first disk, and a pickup for recording / reproducing signals. And a first turntable that is connectable to and separable from the base body,
Centering of a second disc that is not stored in a cartridge, etc.
A second turntable for supporting, a first position where both the first disc and the second disc are attachable to and detachable from the apparatus, and a second position where the first disc can be played back. A substrate moving means for moving the substrate to a third position where the first turntable and the second turntable are coupled to each other so that the second disc can be reproduced, and the disc cartridge. While rolling, it is transported between the base and the second turntable, or
A first transport roller that is carried out of the device, and a second disc that is in rolling contact with the first transport roller and is transported to a position apart from the second turntable with respect to the base body, or is carried out of the device. A second transport roller for moving the first transport roller and the second transport roller to a retracted position that does not interfere with the substrate when the substrate moves from the first position to the third position. At the very least, when the base moves from the third position to the first position, the first transport roller and the second transport are moved to a receiving position where the disc cartridge and the second disc can be transported. A disk drive device comprising roller switching means for moving a roller. 4. A rotatably supporting first transport roller,
A support member that rotatably and swingably supports the second transport roller, a swinging unit that swings the second transport roller to separate from the second disc, and the support member that is the first member. 4. The disk drive device according to claim 3, further comprising: a transfer roller and a roller switching unit that moves integrally with the second transfer roller. 5. A first turntable, which is rotationally driven integrally with a first disk that is rotatably housed in a disk cartridge and is driven integrally with the first disk, and a pickup that records / reproduces signals. A base, a holding means for movably supporting the base, a first position at which the first disc is attachable to and detachable from the device, and a second position at which the first disc can be reproduced. A base moving means for moving the base with respect to the holding means; a first transfer roller for transferring the base into or out of the apparatus while rollingly contacting the disk cartridge; Suspended between a holding means and the first transport roller,
When the base body is in the second position, it comprises elastic biasing means for elastically pressing the first transport roller to the disk cartridge and pressing the disk cartridge to the base body. Disk drive device.