JP2501823Y2 - Disk drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a disc drive apparatus which is optimally applied to, for example, an optical disc recording and / or reproducing apparatus using a disc cartridge.

[Outline of device]

In the disk drive device according to the present invention, the disk cartridge inserted into the vertically moved cartridge holder is ejected by the pressing operation by the pressing member inserted from the insertion hole formed in the front panel in an emergency when the cartridge holder is lowered. By making it possible,
The manual eject operation is simple and quick, and because the front panel through which the pressing member is inserted is always elastically closed by the closing piece, the flow of air into the main body of the device is blocked and dust is blocked. It is designed to prevent the entry of such as.

[Conventional technology]

2. Description of the Related Art Conventionally, in a disk recording / reproducing apparatus that generally uses a disk cartridge, after manually inserting the cartridge to a predetermined position in a cartridge holder in an elevated position, the driving force of a loading motor of the apparatus lowers the cartridge holder, The disc is mounted on the turntable. Then, at the time of eject, the loading motor is driven again by the operation of the eject switch, the cartridge holder is raised, and the cartridge is ejected from the cartridge insertion opening of the front panel in a protruding shape.After that, pull out the cartridge by hand to store and store it. Has been done.

[Problems to be solved by the device]

In the disk recording / reproducing apparatus as described above, there is a case where automatic loading and ejecting by the motor becomes impossible due to power failure, motor failure, or the like at the time of loading and ejecting. In particular, it is extremely inconvenient that the ejection is impossible. Therefore, it is required to provide a special mechanism so that the cartridge can be manually ejected even in the case of power failure or failure.

Therefore, in order to eject the cartridge manually in an emergency, the rotation transmission mechanism that connects to the shaft of the loading motor that raises and lowers the cartridge holder is rotated by a rotation operation member such as a driver to raise the cartridge holder. Although it was configured to eject the cartridge by doing so, since a gear mechanism such as a worm gear is used for the rotation transmission mechanism, it is necessary to rotate the rotary operation member many times, and this manual eject operation takes time. In addition, there was a problem that the operation was troublesome and lacked in speediness.

In addition, since the box is provided with a through hole for inserting the rotation operating member together with the cartridge insertion port, air may flow between the insertion port and the through hole through the inside of the main body of the apparatus. Therefore, there is a problem that dust and the like enter the inside of the main body of the apparatus due to the circulation of the air and hinder the apparatus. Particularly in the case of an optical disk recording / reproducing apparatus, it is necessary to prevent the entry of dust and the like.

The present invention has been made in view of the above points, and enables a manual eject operation of a cartridge to be easily and quickly performed by a pressing operation, and has a simple configuration.
It is an object of the present invention to provide a disk drive device that prevents intrusion of dust and the like.

[Means for solving the problem]

In order to achieve the above object, a disk drive device according to the present invention is provided with a raised position for inserting and ejecting a cartridge from a cartridge insertion opening of a front panel, and a descending position for mounting a disc in the inserted cartridge on a turntable. A cartridge holder that is moved up and down between the cartridge holder, an eject operation member that is configured to reciprocate in the same direction as the insertion and ejection directions of the cartridge, and that is reciprocated by driving a motor to move the cartridge holder up and down; A lock member for locking the cartridge inserted in the cartridge, and when the eject operation member is moved forward and the cartridge holder is in the lowered position, the pressing member is inserted through the insertion hole formed in the front panel and pressed. By operating the eject operation member, With raising the cartridge holder, and configured to be able to unlock the cartridge,
The insertion hole formed in the front panel is always closed by an elastically contacting closing piece.

[Action]

The disk drive device according to the present invention inserts and holds the disk cartridge, which is inserted and held in the cartridge holder that is moved up and down, from the insertion hole formed in the front panel in the event of an emergency such as power failure or failure when the cartridge holder is lowered. The cartridge holder can be raised and quickly taken out simply by inserting and pressing the eject operation member.Also, the insertion hole of the pressing member is closed by the closing piece, so that the main body of the device is always Although only the cartridge insertion port is open, this cartridge insertion port is also closed by the lid, so that air is hardly circulated into the apparatus main body and dust and the like are prevented from entering.

〔Example〕

An optical disk recording and / or reproducing apparatus to which the present invention is applied will be described below with reference to the drawings.

This optical disk recording and / or reproducing apparatus is configured such that a disk cartridge is attached so as to be housed therein, and a mechanism and means sufficient for recording and / or reproducing an information signal on an optical disk are provided. That is, the apparatus main body (1) has a disk loading mechanism (4) for mounting a disk cartridge in a predetermined cartridge mounting section (2) and mounting an optical disk on a disk table of a disk rotation driving device (3), An optical pickup device (5) for recording and / or reproducing an information signal to and from the optical disc by being radially transferred over the inner and outer circumferences of an optical disc mounted on a disc table and rotated, and an information signal on the disc. A mechanism sufficient to record and / or reproduce information signals on the optical disk such as a magnetic head device (6) for applying an external magnetic field when recording is recorded.

The cartridge mounting portion (2) is configured on a chassis substrate (7) on which mechanical portions such as a disc rotation driving device (3) and a transfer mechanism of an optical pickup device (5) are arranged. That is, the cartridge mounting portion (2) is provided on the upper surface side of the chassis substrate (7) with the disc cartridge (10).
1) is formed by forming a space sufficient for mounting. Positioning holes (102a), (when the disc cartridge (101) is mounted in the cartridge mounting portion (2) by positioning the disc cartridge positioning pins (8), (9) on the chassis substrate (7). 102
By engaging with b), the cartridge mounting part (2)
The mounting position is positioned with respect to the mounting. Further, the cartridge mounting portion (2) is provided with height reference pins (8a) and (9a) for holding the disc cartridge (101) at a predetermined height with respect to the chassis substrate (7). ing.

A disc rotation drive device (3) for rotating the optical disc D of the disc cartridge (101) is arranged in a substantially central portion of a chassis substrate (7) including the cartridge mounting portion (2). The disk rotation drive device (3) includes a drive motor (10) and a chassis substrate (7).
Is mounted on the lower surface of the cartridge and the spindle shaft (11) is disposed so as to project toward the cartridge mounting portion (2) side. A disc table (12) for rotating the optical disc is integrally attached to the tip end side of the spindle shaft (11). The disc table (12) has a function of integrally rotating the optical disc and rotating the disc. Therefore,
The disk table (12) is provided with a disk attracting magnet (12a) for integrating the optical disk D by magnetic attraction.

An optical pickup device (5) is supported on the chassis substrate (7). This optical pickup device (5) is installed in the chassis substrate (7) at a substantially central portion such that an objective lens for focusing a laser beam is opposed to a signal recording surface of an optical disc mounted on a disc table (12). Optical pickup device mounting hole (14)
It is supported via a pair of feed guide shafts (15) and (16) which are suspended inside. The thus-supported optical pickup device (5) includes a pair of optical pickup device driving magnets (17), (18) and a driving coil (19) arranged in the optical pickup device mounting hole (14). And a so-called linear motor or the like configured to transfer the disk in the radial direction along the guide shafts (15) and (16) over the inner and outer circumferences of the disk.

A magnetic head device (6) is connected to the optical pickup device (5) so as to be transferred in the radial direction over the inner and outer circumferences of the optical disc D in synchronization with the optical pickup device (5). This magnetic head device (6)
Has a magnetic head (20) including a magnetic field generating coil for applying a magnetic field of a predetermined intensity to the signal recording surface of the optical disc D. The magnetic head (20) is provided on a magnetic head moving frame member (21) that is attached to a magnetic head elevating frame member of a magnetic head device vertical movement mechanism, which will be described later, so as to be movable. In the magnetic head moving frame member (21), a drive unit for moving and operating the magnetic head (20) in the radial direction over the inner and outer circumferences of the optical disc D, and a distance between the magnetic head (20) and the optical disc D are provided. A distance sensor (neither of which is shown) is provided for finely adjusting and maintaining the position at a certain distance. Further, the frame member (21) for moving the magnetic head is vertically connected to the optical pickup device (5), and the magnetic head device (6) is synchronized with the optical pickup device (5) and is always placed on the inner and outer circumferences of the optical disc D. The transfer operation is performed in the radial direction.

Then, the magnetic head device (6) configured as described above
The magnetic head device vertical movement mechanism (22) is operated so as to approach and separate from the signal recording surface of the optical disc D in a substantially vertical direction. This magnetic head device vertical movement mechanism (22)
Is a frame member (23) for moving a magnetic head, which supports a frame member (21) for moving a magnetic head provided with the magnetic head (20).
And the frame member (23) for raising and lowering the magnetic head is attached to the optical disc D.
And a vertical movement lever (24) for moving a magnetic head up and down frame member which is operated to approach and separate in a direction substantially perpendicular to the signal recording surface.

The magnetic head raising / lowering frame member (23) includes a pair of raising / lowering shafts (25) that are set up on the chassis substrate (7) on the side opposite to the disc rotation driving device (3) with the optical pickup device (5) interposed therebetween. It is attached to (26) so that it can move up and down.
On the side of the magnetic head raising / lowering frame member (23) facing the optical pickup device (5), a pair of support shafts are arranged so as to be parallel to the signal recording surface of the optical disc and axially in the radial direction. 27) and (28) are attached, and the support shafts (27) and (28) allow the magnetic head moving frame member (21) to be attached so as to be movable in the radial direction of the optical disc D. There is. Further, a magnetic head lifting frame member vertical movement lever (24) for vertically moving the magnetic head lifting frame member (23) is slidably engaged with one side portion of the magnetic head lifting frame member (23). A lifting engaging pin (29) is provided.

Then, the magnetic head lifting frame member vertical movement lever (24) for slidingly engaging the lifting engagement pin (29) to vertically move the magnetic head lifting frame member (23) is used for lifting the magnetic head. It is mounted on the chassis substrate (7) rotatably around the support shaft (30) at a position corresponding to the engagement pin (29). This magnetic head lifting frame member vertical movement lever (24)
Is composed of a fan-shaped sliding contact portion (24a) slidingly contacting the chassis substrate (7) and a vertical movement guide portion (24b) formed upright from the sliding contact portion (24a). (2
A lever operation pin (31) fitted into a magnetic head elevating frame member vertical movement lever operation member provided on an eject plate of a disk loading mechanism (4) described later is planted in 4a).

On the other hand, the vertical movement guide portion (24b) is configured such that the upper end portion of the rising wall is slidably engaged with the elevating engagement pin (29), and the elevating engagement pin (29) is located at the upper end portion. In the engaged state, that is, in the eject state, the magnetic head elevating / lowering frame member (23) is in the direction of separating from the optical disc D, and the magnetic head (20) does not hit at least when the disc cartridge is inserted. Held in.
On the other hand, in the state in which the raising / lowering engaging pin (29) is engaged with the lower end side of the vertical movement guide portion (24b), that is, in the loading state, the head raising / lowering frame member (23) approaches the optical disc D. Direction, the magnetic head (20) is held at a height position where an information signal can be written on the signal recording surface of the optical disc D.

Further, when the magnetic head device (6) is moved to a recording position close to the optical disc D, the magnetic head device (6) is provided on the other side rear portion of the magnetic head lifting frame member (23). Is provided with an engagement surface (23a) that engages with a magnetic head device holding mechanism described later that holds the signal recording surface at a predetermined height position. This engagement surface (23a)
Has an inclined surface inclined toward the chassis substrate (7) side on the side opposite to the side on which the magnetic head device (6) is provided.

The disc loading mechanism (4) for loading the disc cartridge (101) into the cartridge mounting portion (2) includes a cartridge holder (32) into which the disc cartridge (101) mounted in the optical disc recording and / or reproducing apparatus is inserted and held. ) And a cartridge holder support plate (3) that supports the cartridge holder (32).
3), an eject plate (34) for moving the cartridge holder (32) up and down with respect to the cartridge mounting portion (2) and moving it to an eject position for ejecting the disc cartridge (101), and this eject plate (34 ), And an eject plate slide drive mechanism (35) for sliding.

The cartridge holder (32) is formed in a substantially flat plate shape that is large enough for the disc cartridge (101) to be inserted and held, and has a substantially U-shaped cross section for holding the disc cartridge (101) on opposite sides. Cartridge holding portions (36a) and (36b) are formed. On the outer side surfaces of the cartridge holding portions (36a) and (36b), a pair of vertical movement guide pins (37a), (37b) and (37c) are respectively provided on the bulging portions where a part of the outer side surfaces bulges outward. , (37d) are projected.

Then, the upper plate portion (32
A shutter release lever (39) provided with a shutter release pin (38) for opening the shutter member (101) of the disc cartridge (101) inserted in the cartridge holder (32) is rotatable in a). Installed on.
The shutter release lever (39) is formed in a substantially L shape in a plane, and is rotatably supported by the first support shaft (40) on the base end side thereof as a fulcrum at a substantially central portion of the upper plate portion (45). ing. The shutter release pin (38) of the shutter release lever (39) is connected to the shutter release pin (3) on the upper plate portion (32a).
8) via the shutter opening pin guide groove (41) formed along the movement locus centering on the first support shaft (40),
It is suspended inward of the cartridge holder (32).

The shutter release lever (39) rotatably mounted in this way is provided with the first tension coil spring (42).
As a result, the shutter release pin (38) indicated by arrow G in FIG.
The shutter opening pin (38) is positioned at the starting end position of the shutter opening pin guide groove (41), that is, the initial position by being urged in the direction of moving the disc opening direction toward the insertion / removal side of the disc cartridge (101).

Further, the upper plate portion (32a) of the cartridge holder (32) has a disc cartridge retracting mechanism (43) for forcibly retracting the disc cartridge (101) to the loading position when the disc cartridge (101) is inserted into the cartridge holder (32). ) Is provided. The disk cartridge retracting mechanism (43) includes a cartridge retracting member (45) provided with a cartridge retracting pin (44) which is inserted into and engages with a cartridge retracting pin fitting hole (104) provided in the disc cartridge (101), This cartridge retracting member (45) and this cartridge retracting member (45)
Cartridge retracting lever (46) that rotatably supports the
And a cartridge pull-in operation lever (47) for moving the cartridge pull-in lever (46) forward and backward.

The cartridge retracting member (45) is formed to have a substantially U-shaped cross section, and has a substantially L-shaped extending section (45a) extending to the insertion / removal side of the disc cartridge (101) at its lower end. It is provided. This extension (45a)
The front end portion of the is bent and formed on the outer surface side of the cartridge holding portion (36b) of the cartridge holder (32). Then, the cartridge pull-in pin (44) is planted at the tip of the extending portion (45a). The cartridge retracting member (45) thus formed is rotatably attached to the tip end side of the cartridge retracting lever (46), and the cartridge retracting pin (44) is attached to the cartridge retracting pin (44) by the torsion coil spring (48). The cartridge holder (32) is urged toward the outer surface side of the cartridge holding portion (36b) indicated by the middle arrow H.

Then, the cartridge pull-in lever (46) engages with the pair of guide shafts (49a) and (49b) pivotally supported by the upper plate portion (32a) of the cartridge holder (32), and serves as a disc cartridge insertion / removal port. It is adapted to be moved forward and backward in a direction opposite to this, and the other end is engaged with one end side of a cartridge retracting lever (47) for operating the cartridge retracting lever (46). Have been combined.

The cartridge retraction operation lever (47) is formed in a substantially crescent shape in plan view, and can be pivoted to the upper plate portion (32a) of the cartridge holder (32) by the support shaft (50) with the substantially center portion as a fulcrum. A rotation operation engagement piece (51) that is supported and engages with an eject plate (34) described later, and the cartridge retraction operation lever (47) is rotated by the eject plate (34) on the other end side. Are formed so as to project.

The cartridge retracting operation lever (47) rotatably mounted in this way is provided with the second tension coil spring (5
2) is urged in the direction of moving to the insertion side of the disc cartridge shown by the arrow J in FIG. 4, and the rotation operation engagement piece (51) is positioned on the insertion / removal side of the disc cartridge. There is. At the same time, the cartridge pull-in lever (46) connected to the cartridge pull-in operation lever (47) is extended toward the insertion side of the disc cartridge (101), and the cartridge pull-in pin (44) of the cartridge pull-in member (45) is moved to the loading position. Is located in.

In addition, an erroneous insertion prevention lever for preventing the disc cartridge (101) inserted in the cartridge holder (32) from being inserted in the wrong direction in the upper plate portion (32a) of the cartridge holder (32). (53) is rotatably attached and is biased by the third tension coil spring (54) in the direction of moving inward of the cartridge holder (32) shown by arrow K in FIG. The incorrect insertion prevention pin (55) faces the cartridge holding portion (36).

Further, in the upper plate portion (32a) of the cartridge holder (32), there is provided a first cutout portion (32b) facing an eject plate holding lever for holding an eject plate (34) described later at an eject position, and a magnetic head device. A second cutout portion (32c) facing (6) is formed. Then, the second cutout portion (32c) of the cutout portions (32b) and (32c).
On the opening side of the cartridge, a cartridge erroneous insertion preventing means (56) for preventing erroneous insertion of a different type disk due to a difference in the type of the optical disk D in the disk cartridge (101) by projecting into the notch (32c). ) Is provided.

As shown in FIG. 2, the cartridge holder support plate (33) for supporting the cartridge holder (32) configured as described above has a substantially flat plate shape having a size sufficient to hold the cartridge holder (32) inside. Cartridge holder support walls (33a) and (33b) that support the cartridge holder (32) so as to be vertically movable are provided on both sides of the cartridge holder that are formed and face each other. These cartridge holder support walls (33a),
(33b) includes vertical movement guide pins (37a), (37b), (37c), (37d) provided on the cartridge holder (32).
Are provided with vertical movement guide grooves (61a), (61b) and (61c), (61d) which are inserted through or slidably engaged. Of these vertical movement guide grooves (61a) to (61d), the vertical movement guide grooves (61a) and (61c) provided on the insertion / removal side of the disc cartridge (101) are the vertical movement guide pins (37).
A slit groove is formed in parallel with the spindle shaft (11) of the disk rotation driving device (3) to have a width sufficient to insert (a) and (37c). On the other hand, one of the vertical movement guide grooves (61b), (61d) is formed as a wide groove,
The vertical movement guide pins (37b), (37d) on the inner side are also cut out in parallel with the spindle shaft (11), and the rear side edges of the vertical movement guide grooves (61b), (61d) ( 61b ₁ ),
(61d ₁ ) slidingly engages with.

The cartridge holder support plate (33) is rotatably attached with an eject plate holding lever (62) for holding the eject plate (34) described later at the eject position against the biasing force of the tension coil spring. ing. The eject plate holding lever (62) is turnable by being supported by the support shaft (63) around the base end side. The tip end side of the eject plate holding lever (62) is engaged with an eject plate locking member provided on the eject plate (34) to hold the eject plate (34) at the eject position (62a). ) Is provided, and an eject plate holding lever turning pin (64) for turning and operating the eject plate holding lever (62) is planted at the base end portion provided with the engaging claw (62a). . This eject plate holding lever pivot pin (64) is attached to the cartridge holder (3
2) It is suspended in the cartridge holder (32) through a notch (32b) which is open to one side.

The eject plate holding lever (62) thus configured is biased by the torsion coil spring (65) in the direction indicated by the arrow L in FIG. 2 to engage the engaging claw (62a) and the eject plate. When the engagement with the member is released, the eject plate holding lever (62) has the lever rotation preventing piece (62b).
Is locked by the cartridge holder support plate (33) and its rotation is restricted.

The cartridge holder support plate (33) has a third notch (33) facing the cartridge retracting lever (46).
c), a fourth cutout portion (33d) exposed by the magnetic head device (6) and an eject plate sliding pin (66a) for sliding an eject plate (34) described later in the insertion / removal direction of the disk cartridge, (66b), (66c), (66d)
Is provided.

The eject plate (34) is slidably attached to the cartridge holder support plate (33) configured as described above. The eject plate (34) has a flat plate-like slide portion (34a) that slides in sliding contact with the cartridge holder support plate (33), and the disc rotation drive device (3) side on opposite sides of the slide portion (34a). It has rising walls (34b) and (34c) that hang down. Slide grooves (71a), (71b), (71c) into which the eject plate slide pins (66a) to (66d) provided on the cartridge holder support plate (33) are inserted and engaged with the slide portion (34a), respectively. , (71d) are provided. These slide grooves (71a) to (71d) are formed in the shape corresponding to the eject plate slide pins (66a) to (66d) as elongated holes in the direction of inserting and removing the disc cartridge.

Further, the slide portion (34a) has an eject plate holding lever (6) provided on the cartridge holder support plate (33).
An eject plate locking member (72) that engages with 2) is provided. The eject plate locking member (72) is formed as a cylindrical body large enough to be locked by the engaging claw (62a) of the eject plate holding lever (62), and is provided at the center of the cylindrical body. It is rotatably attached to the slide portion (34a) by a screw (73) through the hole.

Further, the slide portion (34a) has a fifth cutout portion (34d) facing the cartridge retracting lever (46), a sixth cutout portion (34e) facing the magnetic head device (6), and a cartridge holder ( A seventh cutout portion (34f) is provided to face the rotation operation engagement piece (51) of the cartridge pull-in operation lever (47) provided in 32). And
Of the notches (34d), (34e), (34f), the sixth notch (34e) has a notch at the inner side edge (34e ₁ ) into which the disc cartridge is inserted. When the magnetic head device (6) is provided at a recording position close to the optical disc so as to project into the portion (34e), the magnetic head device (6) is moved to a predetermined position on the signal recording surface of the optical disc. A magnetic head device holding mechanism (74) for holding at a height is provided. The magnetic head device holding mechanism (74) is composed of an elastically displaceable leaf spring (74a) whose front end is bent and formed in a substantially U shape, and the substantially U-shaped apex of the front end side moves up and down the magnetic head. The magnetic head device (6) is slidably engaged with the engaging surface (23a) provided on the frame member (23).
Is moved to a recording position close to the optical disc, the magnetic head lifting frame member (23) is pressed and held.

Further, one side edge (34f ₁ ) of the seventh cutout portion (34f) on the insertion / removal side of the disc cartridge is provided with the eject plate (3
When 4) slides to the eject position, it engages with the rotation operation engaging piece (51) protruding into the notch (34f) to rotate the cartridge retracting operation lever (47). It has become.

Then, on the rear side of the seventh cutout portion (34f) into which the disc cartridge (101) is inserted, the eject plate slide driving mechanism (35) for sliding the eject plate (34) to the eject position. An operation portion (75) with which the pin is inserted and engaged is provided. The operation portion (75) is formed in a flat plate shape having a substantially square planar shape, and is provided at one rear side edge of the slide portion (34a). The operation portion (75) has a pin sliding hole (75a) through which the eject plate slide pin is inserted and engaged.
Are formed as substantially circular holes.

As shown in FIG. 4, the eject plate slide mechanism (35) provided with an eject plate slide pin that is inserted into and engaged with the pin sliding hole (75a) is an eject motor provided below the chassis substrate (7). (Not shown), and an eject plate operating gear (77) provided with an eject plate slide pin (76) that is rotationally driven by this motor. The eject motor and the eject plate operating gear (77) are connected by a plurality of connecting gear mechanisms (78) of different sizes. Then, the eject plate slide pin (76) is erected at the eccentric position of the eject operation gear (77). This eject plate slide mechanism (35) is provided with the disc cartridge (10
In a state in which 1) is mounted in the cartridge mounting portion (2), an eject operation button (not shown) is operated to drive the eject motor, and the eject plate operating gear (7
When the 7) is driven to rotate, the eject plate slide pin (7
6) slidably engages with the peripheral edge of the opening of the pin sliding hole (75a) of the eject plate (34), slides the eject plate (34), and is stretched on the cartridge retracting lever (47). Extension coil spring (52) and eject plate (34)
The eject plate (34) is slid to the eject position by sliding the eject plate (34) against the urging force of a tension coil spring (described later) that is stretched over the chassis substrate (7). The eject plate slide pin (76) is designed to be rotated to a position where it does not slide into the pin sliding hole (76a) when the eject plate (34) is not in the eject position.

Then, on the rising walls (34b) and (34c) provided on opposite sides of the slide portion (34a), the cartridge holder (32) is moved up and down with respect to the cartridge mounting portion (2), and the disc cartridge (32 101)
Vertical slide grooves (80a), (80b), (80c), (80d) for moving to the eject position for ejecting
Are provided respectively. These vertical movement slide grooves (80a), (80b) and (80c), (80d) descend in a parallel part parallel to the insertion / removal direction of the disc cartridge (101) and from this horizontal part toward the rear side. It is composed of a first inclined portion that inclines and a second inclined portion that further inclines downwardly toward the rear side. The cartridge holder (32) supported by the chassis substrate (7) by inserting the vertical movement guide pins (37a) to (37d) into the vertical movement slide grooves (80a) to (80d) formed in this way is
The vertical movement guide pins (37a) to (37d) are guided in the vertical movement slide grooves (80a) to (80d), so that the axial direction of the spindle shaft (11) of the disk rotation drive device (3), that is, cartridge mounting. The unit (2) is moved up and down and moved to the eject position where the disc cartridge is ejected.

In addition, the vertical slide slides (80) on the inner side into which the disc cartridges of the rising walls (34b) and (34c) are inserted.
A fourth tension coil spring (81) for constantly urging the eject plate (34) toward the insertion / removal side of the disc cartridge (101) is attached near b) and (80d). In this example, one of the tension coil springs is omitted. Each of these tension coil springs (81)
One end is locked to the rising walls (34b) and (34c) and the other end is spring-locking pin (82) that is planted on the chassis substrate (7).
The eject plate (34) is always urged toward the insertion / removal side of the disc cartridge (101) by being locked to a) and (82b).

Further, on the inner side of the one rising wall (34c) into which the disc cartridge (101) is inserted, the magnetic head lifting frame member vertical movement lever (24) rotatably supported by the chassis substrate (7). ) Lever operation pin (31), and this magnetic head lifting frame member vertical movement lever (2
A magnetic head lifting frame member vertical movement lever operating member (83) for rotating 4) is provided. The magnetic head lifting frame member vertical movement lever operating member (83) is parallel to the slide portion (34a) from one side edge on the lower end side of one rising wall (34c) toward the other rising wall (34b) side. It is provided to extend. And, in the vicinity of the tip of this magnetic head lifting frame member vertical movement lever operating member (83),
The lever operation pin guide groove (83a) into which the lever operation pin (31) is fitted and engaged is formed as a slotted groove. The thus-formed magnetic head lifting frame member vertical movement lever operating member (83) lever operating pin guide groove (83
When the lever operation pin (31) is inserted into and engaged with a) and the eject plate (34) slides, the magnetic head elevating frame member vertical movement lever (24) is rotationally operated, and the magnetic head elevating frame. The member (23) is operated to come into contact with and separate from the signal recording surface of the optical disk in a direction substantially perpendicular to the signal recording surface.

The device body (1) configured as described above is housed in an outer casing (not shown), and a front panel (90) is attached to the front side of the outer casing.

The front panel (90) is provided with a cartridge insertion opening (91) into which a disc cartridge is inserted horizontally, and upper and lower edges of the cartridge insertion opening (91) are divided into a lid (92a) and an upper (92b). ) Are attached rotatably inward and outward, and both lids (92a) and (92b) are biased so as to close the cartridge insertion opening (91) with their free edges abutting each other. .

An operation state in which the above-described disc cartridge is mounted on the optical disc recording and / or reproducing apparatus configured as described above will be described.

First, the state before the mounting operation of the disc cartridge (101) will be described.

In order to mount the disc cartridge (101), an eject button (not shown) is operated to move the eject plate (34) to the eject position to lift the magnetic head provided with the cartridge holder (32) and the magnetic head (20). The frame member (23) is moved to a raised position separated from the disc table (12) of the disc rotation drive device (3), and the cartridge holders (36a), (36) of the cartridge holder (32) are moved.
Make b) face the cartridge insertion opening (91) of the front panel (90).

That is, by operating the eject button, the eject plate slide mechanism (35) is driven, and the eject plate slide pin (77) of the eject plate slide mechanism (35) is provided on the eject plate (34) on the operation portion (75). )
A fourth tension coil spring (81) slidably engaged with the eject plate (34) and the chassis substrate (7) and a tension coil spring (tensified on the cartridge retraction operation lever (47). The eject plate (34) is slid toward the insertion side of the disc cartridge (101) against the biasing force of the disc (52). Then, the eject plate holding lever (62) of the cartridge holder support plate (33) is attached to the eject plate locking member (7
2) and the eject position of the eject plate (34) is held.

Also, along with the slide operation of the eject plate (34),
The rotation operation engagement piece (51) of the cartridge retraction operation lever (47) protruding into the seventh cutout portion (34f) of the eject plate (34) is retracted toward the insertion side of the disc cartridge (101). . Then, the cartridge pull-in lever (46) connected to the cartridge pull-in lever (47) is slid to the opposite side of the disc cartridge insertion / removal side, and is rotatably supported at the tip side of the cartridge pull-in lever (46). The cartridge pull-in pin (44) of the cartridge pull-in member (45) is brought into abutting engagement with the cartridge pull-in pin position regulating tongue of the cartridge holder (32) to be inserted into the cartridge holder (32). Hold it in a position that has escaped to the outside.

The shutter opening pin (38) is provided at an initial position by a first tension coil spring (42) stretched over the shutter opening lever (39) and the cartridge retracting operation lever (47). On the other hand, erroneous operation prevention pin (5
Similarly, 5) is provided at an initial position that is suspended in the cartridge holder (32) by a third tension coil spring (54) stretched over the erroneous operation prevention lever (53) and the cartridge holder (32). There is.

Further, along with the slide operation of the eject plate (34), a magnetic head lifting frame member vertical movement lever operating member (83) and a magnetic head lifting frame member vertical movement lever (24) provided on the eject plate (34). ) And the magnetic head lifting frame member vertical movement lever (24) is rotated,
The magnetic head raising / lowering frame member (23) is operated to move to a raised position separated from the disc table (12) of the disc rotation drive device (3). At this time, the magnetic head lifting / lowering frame member (23) has the eject plate (3
The magnetic head lifting frame member (23) is recorded at the recording position by pressing and urging the engaging surface (23a) provided on the magnetic head lifting frame member (23) by the leaf spring (74a) provided in 4). However, when the eject plate (34) slides rearward, these engagements are released, and the magnetic head lifting frame member (23) is lifted against only its own weight. Therefore, the eject plate slide mechanism (35) for raising the magnetic head lifting frame member (23).
Since the load on the motor is small, it is possible to use a motor having a relatively small output.

Then, when the magnetic head elevating frame member (23) is raised, that is, when the eject position is raised, the magnetic head elevating frame member vertical movement lever (24) has a vertical movement guide portion (24b) on the upper end edge side. Frame members for lifting magnetic heads (23)
When the magnetic head (20) is inserted into at least the disk cartridge holder (101), the magnetic head (20) is inserted into the disk cartridge (101) when the lifting engaging pin (29) provided in the disk cartridge holder (101) is engaged. It can be held in a position where it does not hit.

Then, in this state, the disc cartridge (101) is attached to the front panel (9) with the insertion direction of the shutter member (103).
0) cartridge insertion opening (91) to the upper and lower lids (92a),
Insert the (92b) into the cartridge holder (32) by pushing it inward.

When the disc cartridge (101) is inserted into the cartridge holder (32), first, the corner portion on the tip side of the cartridge comes into contact with the erroneous insertion prevention pin (55) rotatably attached to the cartridge holder (32). To do. At this time, if the insertion direction of the disc cartridge (101) is correct, the erroneous insertion prevention pin (55) is rotated by the disc cartridge (101) to insert the disc cartridge (101). In contrast,
When the disc cartridge (101) is inserted in the cartridge holder (32) with the wrong insertion direction, the insertion is prevented by the erroneous insertion prevention pin (55).

Then, when the disc cartridge (101) is further inserted, the shutter opening pin (38) is fitted into and engaged with the shutter opening member entrance recess provided in the cartridge (101). When the shutter opening pin (38) is fitted and engaged in the shutter opening member entry recess, the cartridge is formed to project on the upper plate portion (32a) of the cartridge holder (32) so as to face the shutter opening pin (38). By the pushing down member, the disc cartridge is pushed down toward the disc table (12) side, and the shutter opening pin (38) is fitted and engaged in the recess for opening the shutter opening member (105).

When the disc cartridge (101) is further inserted into the cartridge holder (32) from this state, one end of the shutter member (103) comes into contact with the shutter opening pin (38),
Shutter member The shutter release pin (38) resists the biasing force of the torsion coil spring provided in the cartridge,
The shutter member (103) is opened by moving the disk cartridge in the direction of opening the opening.

Then, when the disk cartridge (101) is further inserted into the cartridge holder (32) from this state,
Eject plate holding lever turning pin (64) of the eject plate holding lever (62) rotatably attached to the cartridge holder support plate (33) and the disc cartridge (101)
The eject plate holding lever (62) is rotated by contacting the tip of the eject plate holding lever (62).
The engagement between 2) and the eject plate locking member (72) provided on the eject plate (34) is released. As a result, the lock of the eject plate (34) is released, and the eject plate (34) is released.
Is slid to the insertion / removal side of the disc cartridge (101) by a fourth tension coil spring (81) stretched over the eject plate (34) and the chassis substrate (7). At the same time, the rotation operation engagement piece (51) of the cartridge retracting operation lever (47) that was engaged with the one side edge (34f ₁ ) of the cutout portion (34f) of the eject plate (34).
Is disengaged. As a result, the cartridge pull-in pin (44) held outside the disc cartridge engages with the cartridge pull-in pin fitting hole (104) provided in the disc cartridge (101). And this cartridge retracting lever (47)
A cartridge pull-in lever connected to the cartridge pull-in lever (47) by rotating a cartridge pull-in lever (47) by a second pull coil spring (52) stretched between the cartridge pull-in lever (32) and the cartridge holder (32). Move (46) to the insertion side of the disc cartridge. As a result, the cartridge retracting lever (46)
Cartridge retracting member (45) provided on the tip side of
However, by the second tension coil spring (52) stretched over the cartridge pull-in operation lever (47) and the cartridge holder (32), the disk cartridge (101)
Move in the direction of inserting the disc cartridge. As a result, the disc cartridge (101) is positioned on the inner end side of the cartridge holder (32), and the upper and lower openings (106) provided in the disc cartridge (101) are fully opened.

Then, as the eject plate (34) is moved, the cartridge holder (32) moves the vertical guide pins (37a) to the vertical slide grooves (80a) to (80d) provided on the eject plate (34). (37b) is guided and moved down in the axial direction of the spindle shaft (11) of the disk rotation drive device (3). That is, the vertical movement guide pin (37a) ~
The position state in which (37d) is guided by the vertical movement slide grooves (80a) to (80d) and is engaged with the second slanted portion that is rapidly inclined downward in the vertical movement slide grooves (80a) to (80d). so,
The cartridge holder (32) has vertical movement guide grooves (61a) to (61d) provided on the cartridge holder support plate (33).
Is descended along. As a result, the disc cartridge is positioned and mounted in the cartridge mounting portion (2). At this time, the disc cartridge (101) has height positioning pins (8) provided on the chassis substrate (7),
(9) and disc cartridge reference pins (8a), (9
By a), the position is regulated and it is held at a predetermined height. At the same time, this disc cartridge (10
The optical disc D housed in 1) is mounted on the disc cartridge (12).

Along with the operation of moving the eject plate (34), the magnetic head lifting frame member vertical movement lever operating member (83) and the magnetic head lifting frame member vertical movement lever (24) provided on the eject plate (34). Are engaged with each other to rotate the magnetic head elevating frame member vertical movement lever (24), so that the magnetic head elevating frame member (23) is rotated by the spindle shaft (11) of the disk rotation drive device (3). Is operated to descend. When the magnetic head lifting frame member (23) is lowered, the leaf spring (74a) provided on the eject plate (34) is attached to the engaging surface (23a) of the magnetic head lifting frame member (23). When engaged, the magnetic head lifting frame member (23) is pressed and biased. As a result, the magnetic head (20), which is movably supported by the magnetic head lifting frame member (23), faces the opening of the disc cartridge (101) and the signal recording of the optical disc D stored in the disc cartridge (101) is performed. It is held at a predetermined height position with respect to the surface and is arranged so as to face the optical pickup device (5), so that the information signal can be recorded and reproduced.

The optical disk recording and / or
Alternatively, in the reproducing apparatus, the magnetic head elevating frame member (23) is pressed and biased by the leaf spring (74a) provided on the eject plate (34) only when the information signal is recorded and reproduced on the optical disc. As a result, even when this device is used not only when the optical disk is horizontal with respect to the horizontal plane but also when it is vertical, the magnetic head (20) is kept at a predetermined height above the optical disk during recording and reproduction. Can be held in position.

Next, the optical disc recording and / or
Alternatively, the eject mechanism of the disc cartridge in the emergency of the reproducing apparatus will be described.

First, an example configuration will be described with reference to FIGS. The slide part (34a) of the eject plate (34) described above.
Of the sliding portion (34a), that is, the edge of the slide portion (34a) on the insertion / removal side of the disc cartridge, is bent upward to form an abutting portion (93) as a pressed portion, and both sides of the abutting portion (93) are formed. The guide pieces (93a) and (93b) are bent and formed toward the front.

Further, a pin insertion hole (94) as a through hole is formed in the front panel (90) so as to face the abutting portion (93) of the eject plate (34) and penetrate a mounting plate (95) fixed to the rear surface of the panel. The pin insertion hole (94) can be opened / closed on the back side of the pin insertion hole (94), that is, the back surface of the mounting plate (95) by elastically constantly abutting the pin insertion hole (94). Installed on. The blocking piece (96) is made of, for example, a resin material such as polyethylene terephthalate or a flexible plate-shaped material such as a metal thin plate.

Next, the eject operation of the disc cartridge in an emergency will be described.

First, as shown in FIG. 1, when the cartridge holder (32) in which the disc cartridge is loaded and held is lowered, it is assumed that the auto eject is disabled due to a power failure or a failure of the motor of the eject plate slide mechanism (35). .

In this case, as shown in FIG. 2, when the pin material (97) is inserted through the pin insertion hole (94) formed in the front panel (90), the pin material (97) closes the pin insertion hole (94). Push the blocking piece (96) open and hit the abutment part (93) of the eject plate (34).
The two guide pieces (93a) and (93b) guide each other in a pinching manner to hit the. By pressing the pin (97) in this state, the eject plate (34) causes the tension coil spring (81) and the cartridge retraction operation lever (47) described above.
The slider holder is slid backwards, that is, toward the insertion side of the disc cartridge against the biasing force of the tension coil spring (52) stretched over the cartridge holder (32). Eject board (3
4) It is guided by the vertical movement slide grooves (80a) to (80d) and lifted. Then, the pin member (97) is further pressed to move the cartridge retracting operation lever (47) to rotate the cartridge retracting pin (44) of the cartridge retracting member (45) immediately before the cartridge holder (32) is completely raised. The disk cartridge (101) mounted in the cartridge holder (32) escapes from the lead-in pin fitting hole (102) of the disk cartridge (101), which causes the disk cartridge (101) to twist the coil spring () of the eject plate holding lever (62). 65) biasing force and shutter release lever (39)
Is pushed by the eject plate holding lever rotation pin (64) by the urging force of the tension coil spring (42) and pushed out from the cartridge holder (32), and the rear portion is outward from the cartridge insertion opening (91) of the front panel (90). Is projected to.

With this configuration, as described above, even when the auto eject is disabled due to a power failure or a motor failure, the pin material (97) such as the clip is inserted from the pin insertion hole (94) of the front panel (90). By inserting and pressing the eject plate (34) through the abutment portion (93), the cartridge holder (32) can be reliably raised and the disc cartridge can be ejected.

The pin insertion hole (94) is closed by the blocking piece (96) except when this eject operation is performed in an emergency, the flow of air between the pin insertion hole (94) and the cartridge insertion port (91) is blocked, and dust enters the device. Is prevented.

The embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made without departing from the spirit of the present invention.

[Effect of device]

As described above, the disk drive device according to the present invention is
Inserting and holding the disk cartridge in the cartridge holder that is moved up and down When the cartridge holder is descending, press the eject operation member by inserting the pressing member through the insertion hole that is drilled in the front panel in the event of a power failure or failure. Since the cartridge holder can be lifted and taken out only by operating, in an emergency, it is possible to quickly respond by extremely simple operation and protect the disk.

In addition, since the insertion hole of the pressing member is configured to be closed by the closing piece, only the cartridge insertion port of the device main body is always open, but since this insertion port is also closed by the lid, the device main body is not closed. The air is hardly circulated and the entry of dust and the like is blocked, so that the device is hardly affected by the dust and the like.

In particular, the present invention has a great effect when applied to an optical disk recording and / or reproducing apparatus.

[Brief description of drawings]

The drawings show an embodiment in which the present invention is applied to an optical disk recording and / or reproducing apparatus. FIG. 1 is a sectional view of an essential part, and FIG. 2 is a sectional view of an essential part for explaining an eject operation in an emergency. FIG. 3 is a partially separated perspective view of the entire apparatus, FIG. 4 is an exploded perspective view of the same, and FIGS. 5 and 6 are bottom views of the cartridge holder for explaining the mounting state of the disc cartridge to the cartridge holder. In the figure, (2) is a cartridge mounting portion, (32) is a cartridge holder, (34) is an eject plate, (44) is a cartridge retracting pin, (45) is a retracting member, (90) is a front panel, and (91) is The cartridge insertion opening, (92a) and (92b) are lids, (93) is an abutting portion as a pressed portion, (94) is an insertion hole, (97) is a pin material, and (98) is a blocking piece.

Claims (1)

(57) [Scope of utility model registration request] 1. A cartridge holder that is moved up and down between a raised position where a cartridge is inserted and ejected from a cartridge insertion port of a front panel and a lowered position where a disc in the inserted cartridge is mounted on a turntable. An eject operation member configured to reciprocate in the same direction as the insertion and ejection directions of the cartridge and reciprocatingly driven by a motor to raise and lower the cartridge holder; and a cartridge inserted in the cartridge holder to be locked. A lock member, and when the eject operation member is moved back and the cartridge holder is in the lowered position, by inserting a pressing member from an insertion hole formed in the front panel and performing a pressing operation, By moving the eject operation member forward, the cartridge holder With increasing, and configured to be able to unlock the cartridge, the disk drive apparatus is characterized in that so as to close the occlusion member to be the insertion hole at all times resiliently abut.