JPH04195961A - Disk driver - Google Patents

Abstract

PURPOSE:To stabilize rotation of a disk by providing a preventing means between a cartridge holder and a cartridge to be inserted thereto so as to prevent the cartridge from inclining from the horizontal direction when the cartridge is led in by a cartridge loading-in member. CONSTITUTION:A preventing means 98 is provided between the cartridge holder 32 and a cartridge 101 to be inserted thereto so as to prevent the cartridge 101 from inclining from the horizontal direction when the cartridge 101 is drawn by a cartridge drawing member 45. Therefore, the cartridge 101 inserted to a specified position to the cartridge holder 32 is stably led in without inclination from the horizontal direction while the cartridge is led in by the cartridge loading-in member 45 accompanied with descent of the cartridge holder 32. Then, the positioning hole 104 is surely engaged with the positioning pin 44 to accurately hold the cartridge at the specified position so that the aperture part surely faces to the pick up device and head device. Thereby, rotation of the disk can be stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk drive device that is suitable for application to, for example, an optical disk recording and/or reproducing device using a disk drive.

[Summary of the invention]

The present invention provides a method for moving a disk cartridge inserted to a predetermined position into a cartridge holder that is moved up and down into a car.
IJ
In a disk drive device that is retracted by a cartridge retracting member, a preventive means is provided between the cartridge holder and the cartridge inserted into the cartridge to prevent the cartridge from tilting in the horizontal direction when the cartridge is retracted. When the cartridge reaches the lowered position, its positioning hole is securely engaged with the positioning bin, and the cartridge is held in place, so that the opening corresponds precisely to the pickup device and the head device, and the disk also rotates stably. This is how it was done.

[Conventional technology]

Conventionally, in a disk recording and reproducing device that generally uses a disk cartridge, after the cartridge is manually inserted into the cartridge holder in the raised position to a predetermined position, the cartridge holder is lowered by the driving force of the loading motor of the device. The cartridge retracting member operated in conjunction with this downward movement causes the car IJ to be retracted into the cartridge holder, and the disc is mounted on the turntable. At the time of ejection, the loading motor is driven again by the operation of the eject switch, the cartridge holder is raised, the lock is released, and the cartridge is ejected in a protruding manner from the cartridge insertion opening in the front panel. After this, the cartridge is pulled out by hand and stored.

[Problem to be solved by the invention]

However, during loading as described above, the cartridge is pulled into the cartridge holder by engaging the cartridge retracting member with the front part of one side of the cartridge and moving this retracting member.
Since the front part of one side of the IJ ridge is towed, it is tilted horizontally due to the clearance between it and the guide holding part of the cartridge holder.

For this reason, when the cartridge holder reaches the lowered position, the cartridge's positioning hole may shift from the positioning bin of the device and the cartridge may not be held in the specified position, and the head may come into contact with the cartridge body, or There is a risk that a problem will occur that interferes with the rotation of the disk.

The present invention has been made in view of the above, and an object of the present invention is to provide a disk drying device that has a simple configuration and is capable of stably drawing a cartridge into a cartridge holder and loading the cartridge into a predetermined position. shall be.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention moves up and down between a raised position where a cartridge is inserted and ejected from a cartridge insertion opening and a lowered position where a disc in the inserted cartridge is mounted on a turntable. The cartridge holder includes a cartridge holder, an eject operating member that moves the cartridge holder up and down, and a cartridge retracting member that pulls in the cartridge inserted into the IJ holder to a predetermined position as the cartridge holder is lowered by the eject operating member. In a disk drive device, a prevention means is provided between a cartridge holder and a cartridge inserted into the cartridge to prevent the cartridge from tilting in the horizontal direction when the cartridge is pulled in by a cartridge retracting member.

In this configuration, the prevention means is provided as a protrusion on the cartridge guiding and holding portion of the cartridge holder or on the side surface of the cartridge. When this protrusion is provided on the cartridge guide and holder, it is located at a position substantially opposite to the retracting member on the side of the guide and holder opposite to the cartridge retracting member, or at a position n distance from the retracting member of the guide and holder on the side where the retracting member is provided. Form into a rib shape. In addition, when provided in the cartridge, the retracting member is attached to a part on the side opposite to the side forming the engaging part or a part separated from the engaging part on the side forming the engaging part. Form a protrusion.

[Function] According to the present invention, the cartridge inserted into the cartridge holder up to a predetermined position is prevented from tilting in the horizontal direction when being pulled in by the cartridge retracting member as the cartridge holder moves downward, and is stably pulled in. The positioning hole is reliably engaged with the positioning pin to be accurately held in a predetermined position, the opening is reliably opposed to the pickup device and the head device, and the disk is also stably rotated.

〔Example〕

Hereinafter, an optical disc recording and/or reproducing apparatus to which the present invention is applied will be explained with reference to the drawings.

This optical disc recording and/or reproducing device is configured such that a disc cartridge is housed therein and is equipped with mechanisms and means sufficient to record and/or reproduce information signals on the optical disc. . That is, this apparatus main body (1) includes a disk loading mechanism (4) for loading a disk cartridge into a predetermined cartridge mounting portion (2) and loading an optical disk onto a disk table of a disk rotation drive device (3), An optical pickup device (5) for recording and/or reproducing information signals on the optical disc by being transferred in the radial direction across the inner and outer peripheries of an optical disc that is mounted on a disc table and rotated; A mechanism sufficient to record and/or reproduce information signals on the optical disk is provided, such as a magnetic head device (6) that applies an external magnetic field when recording information signals.

The cartridge mounting section (2) has a disk rotation drive device (
3) and the transport mechanism of the optical pickup device (5) are arranged on a chassis substrate (7). That is, the cartridge mounting portion (2) is provided with a disk cartridge (101) on the upper surface side of the chassis board (7).
) is constructed by forming a space sufficient to accommodate the The positioning pins (8) and (9) of the disk cartridge are planted on this chassis board (7), so that when the disk cartridge (101) is installed in the cartridge mounting section (2), the positioning pins (10) are installed.
2a) and (102b), the mounting position is determined and the cartridge is mounted with respect to the cartridge mounting portion (2). Further, the cartridge mounting portion (2) is provided with height reference pins (8a) and (9a) for holding the disk cartridge (101) at a predetermined height with respect to the chassis board (7). ing.

The disk cartridge (
A disk rotation drive device (3) for rotating the optical disk D (101) is provided. This disk rotation drive device (3) is provided with a drive motor (10) attached to the lower surface of a chassis substrate (7) and a spindle shaft (11) protruding toward the cartridge mounting portion (2).

A disk table (12) for rotating an optical disk is integrally attached to the tip side of the spindle shaft (11). This disc table (12) has a function of integrally rotating an optical disc. Therefore, a disk adsorption magnet (12a) is provided on the disk table (12) so that the optical disk D can be integrated by magnetic adsorption.

In addition, the chassis board (power) also includes an optical pickup device (
5) is supported. This optical pickup device (5
) is an optical pickup device mounted approximately in the center of the chassis board (7), with an objective lens that focuses a laser beam facing the signal recording surface of the optical disc mounted on the disc table (12). Hole (14)
The inner hook is a pair of feeding guide shafts (15), (1
6) Supported through. The optical pickup device (5) supported in this manner 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 guide shaft (15) by a so-called linear motor or the like.

(16), the disk is transferred in the radial direction along the inner and outer circumferences of the disk.

The optical pickup device (5) includes a magnetic head device (6) that is operated to move the optical disk D in the radial direction in synchronization with the optical pickup device (5).
are connected. This magnetic head device (6) has a magnetic head (20) equipped with a magnetic field generating coil and the like that applies a magnetic field of a predetermined intensity to the signal recording surface of the optical disk D. The magnetic head (20) is provided on a magnetic head moving frame member (21) which is attached to be transferable to a magnetic head lifting/lowering frame member of a magnetic head device vertical movement mechanism which will be described later. The magnetic head moving frame member (21) includes a drive unit that moves the magnetic head (20) in the radial direction across the inner and outer peripheries of the optical disk D, and a drive unit that moves the magnetic head (20) in the radial direction.
A distance sensor (both not shown) is provided to finely adjust and maintain the distance between the optical disc D and the optical disc D at a constant distance. The magnetic head moving frame member (21) is vertically connected to the optical pickup device (5), so that the magnetic head device (6) is always positioned on the inner and outer peripheries of the optical disk D in synchronization with the optical pickup device (5). The transfer operation is performed in the radial direction.

The magnetic head device (6) configured in this manner is operated toward and away from the signal recording surface of the optical disk D in a substantially perpendicular direction by a magnetic head device vertical movement mechanism (22). This magnetic head device vertical movement mechanism (22
) includes a magnetic head lifting frame member (23) that supports a magnetic head moving frame member (21) on which a magnetic head (20) is provided, and a magnetic head lifting frame member (23) that supports an optical disk D. It consists of a vertically moving lever (24) of a frame member for raising and lowering the magnetic head, which is operated toward and away from the signal recording surface in a direction substantially perpendicular to the signal recording surface.

The magnetic head elevating frame member (23) is a pair of elevating shirts (25) installed on the chassis substrate (7) on the opposite side of the disk rotation drive device (3) with the optical pickup device (5) in between. , (26) so that it can move up and down. Then, this magnetic head elevating frame member (2
On the side facing the optical pickup device (5) of 3), a pair of support shirts (27), (2) are arranged so that the axial direction is parallel to the signal recording surface of the optical disc and radially oriented.
8) is attached to this support shirt) (27),
(28) Due to the magnetic head movement frame member (21)
is attached so as to be movable along the radial direction of the optical disc D. The negative side of the magnetic head lifting frame member (23) is slidably engaged with a magnetic head lifting frame member vertical movement lever (24) that moves the magnetic head lifting frame member (23) up and down. Lifting engagement bin (29)
is provided.

The vertical movement lever (24) of the frame member for vertically moving the magnetic head (24) is slidably engaged with the engaging pin (29) for vertically moving the magnetic head vertically. It is rotatably mounted on the shun board (7) at a position corresponding to the engagement pin (29) about the support shaft (30). This magnetic head lifting frame member vertical movement lever (
24) consists of a fan-shaped sliding portion (24a) that slides on the chassis board (7), and a vertical movement guide portion (24b) that rises from this sliding portion (24a). A lever failure bottle (31) is installed at the contact B (24a) to be fitted into a vertically moving lever operating member of a frame member for lifting and lowering the magnetic head provided on the eject plate of the disk loading mechanism (4), which will be described later. .

On the other hand, the vertical movement guide part (24b) is configured such that the upper end of the rising wall is slidably engaged with the lifting engaging pin (29), and the lifting engaging pin (29) is attached to the upper end. In the engaged state, that is, the ejected state, the magnetic head elevating frame member (23) is in a direction away from the optical disk D, and is at least in a position where the magnetic head (20) does not hit when the disk cartridge is inserted. is maintained. On the other hand, the upper and lower t guide parts (24b)
A state in which the lifting engagement bin (29) is engaged with the lower end side of the
In other words, in the loading state, the head elevating frame member (2
3) is in a direction approaching the optical disk D, and the magnetic head 20) is held at a height position where information signals can be written on the signal recording surface of the optical disk D.

Further, at the other rear part of the magnetic head elevating frame member (23), when the magnetic head device (6) is moved to a recording position close to the optical disk D, a magnetic head device (6) is provided.
) is provided with an engaging surface (23a) that engages with a magnetic head device holding mechanism, which will be described later, that holds the optical disk D at a predetermined height position with respect to the signal recording surface of the optical disk D. This engagement surface (2
3a) is an inclined surface that is inclined toward the chassis substrate (7) on the side opposite to the side where the magnetic head device (6) is provided.

Insert the disk cartridge (1) into the cartridge mounting section (2).
01) A disc loading mechanism (4) that performs a loading operation includes a cartridge holder (32) into which a disc cartridge (101) to be installed in this optical disc recording and/or playback device is inserted and held; a cartridge holder support plate (33) that supports the cartridge holder (32); and an eject plate that moves the cartridge holder (32) up and down with respect to the cartridge mounting hole (2) and moves the disk cartridge (101) to an eject position where it is ejected. (34) and
It is configured to include an eject plate slide drive mechanism (35) for slidingly operating the eject plate (34).

The cartridge holder (32) is formed into a substantially flat plate shape large enough to insert and hold the disk cartridge (101), and has a substantially U-shaped cross section on opposite sides to hold the disk cartridge (101). Cartridge holding parts (36a) and (36b) are formed. These cartridge holding parts (36a), (36
b) A pair of vertically movable guide pins (37a) are provided on the outer surface of the bulge portion of which a portion of the outer surface extends outward.
(37b), (37c), and (37d) are provided protrudingly.

The upper plate portion (3) of the cartridge holder (32)
2a) includes a shutter release bin for opening the shutter member (101) of the disk cartridge (101) inserted into the cartridge holder (32).
A shutter release lever (39) provided with a shutter release lever (38) is rotatably mounted. Nyatta release lever (39)
is formed in a planar oval shape, and is rotatably supported approximately at the center of the upper plate portion (45) by a first support shaft (40) with its base end as a fulcrum. The shutter release pin (38) of this shutter release lever (39) is connected to the upper plate part (
32a) The first support of this shutter release pin (38)! It is suspended inwardly of the cartridge holder (32) via a shutter release bin guide groove (41) bored along a movement locus centered on (40).

The Nyatta release lever (39) rotatably mounted in this way is connected to the first tension coil spring (42).
), the Nyatta open bin (3
8) toward the insertion/ejection opening of the disk cartridge (101), and the shutter release pin (3)
8) is the starting end position of the shutter release pin guide groove (41),
In other words, it is located at the initial position.

Furthermore, the upper plate fffi (3) of the cartridge holder (32)
2a) is provided with a disk cartridge retraction mechanism (43) for forcibly pulling the disk cartridge (101) into the loading position when the disk cartridge (101) is inserted into the cartridge holder (32). This disk cartridge retraction mechanism (43) is a car cartridge (IJ) equipped with a cartridge retraction pin (44) that is inserted into and engaged with a cartridge retraction pin fitting large hole (104) provided in the disk cartridge (1, 01). A retracting member (45), a cartridge retracting member (45), a cartridge retracting lever (46) that rotatably supports the cartridge retracting member (45), and a car that moves the cartridge retracting lever (46) forward and backward. ) It consists of an IJ-judge retracting operation bar (47). The IJ Fuji retraction member (45) is formed with a substantially U-shaped cross section, and has an extension portion (with a substantially U-shaped cross section) extending toward the insertion/ejection opening of the disk cartridge (101) at its lower end. 45a) is provided.

The tip of the second extending portion (45a>) is bent toward the outer side of the cartridge holding portion (36b) of the cartridge holder (32).
A cartridge retraction pin (44) is installed at the tip of 5a). The cartridge retraction member (45) formed in this way is connected to the cartridge retraction lever (46).
) is rotatably attached to the tip side of the cartridge holder (32), and the cartridge retraction pin (44) is connected by a torsion coil spring (48), as indicated by arrow H in FIG.
(36b) is biased toward the outer surface of the IJ holder (36b).

Then, the cartridge retraction lever (46) engages a pair of guide shafts (49a) and (49b) pivotally supported by the upper plate part (32a) of the cartridge holder (32), and It is designed so that it can be moved forward and backward across the insertion/removal port and the opposite direction.
On the other end side, there is a cartridge retraction operation lever (46) for advancing and retracting the cartridge retraction lever (46).
47) is engaged with one end side.

The IJ retraction operation lever (47) has a substantially crescent-shaped planar shape, and the cartridge holder (3
2) is rotatably supported by the upper plate portion (32a), and the other end engages with an eject plate (34) to be described later, and the cartridge retraction operation lever (47) is operated by this eject plate (34). Rotationally operated engagement piece (5
1) is formed in a protruding manner.

The cartridge retraction operation lever (47), which is rotatably mounted in this way, is connected to the second tension coil spring (5).
2), the rotary operation engaging piece (51) is biased in the direction of moving the disk cartridge toward the insertion side indicated by arrow J in FIG. There is.

At the same time, the cartridge retraction operation lever (47)
A cartridge retraction lever (46) connected to the disk cartridge (101) is extended toward the insertion side of the disk cartridge (101);
The cartridge retraction pin (44) of the cartridge retraction member (45) is positioned at the loading position.

In addition, the upper plate 1ffl (3
2a) includes an incorrect insertion prevention lever (2a) for preventing the disk cartridge (101) inserted into the cartridge holder (32) from being inserted in the wrong direction.
53) is rotatably attached and biased by a third tension coil spring (54) in a direction to move the cartridge holder (32) inward as indicated by the arrow in FIG. 4, and is planted on the distal end side. An incorrect insertion prevention pin (55) faces the cartridge holding portion (36).

In addition, the upper plate part (32a) of the cartridge holder (32)
has a first notch (32b) facing an eject plate holding lever that holds the eject plate (34) in the eject position, which will be described later, and a second notch (32c) facing the magnetic head device (6). is formed. Of these notches (32b) and (32c), on the opening side of the second notch (32C), the second notch (32C) is arranged so as to protrude into this notch (32C).
Optical disc D in disc cartridge (101)
A cartridge erroneous insertion prevention means (56) is provided to prevent erroneous insertion of a different type of disc due to a difference in the type of the cartridge.

As shown in FIG. 2, the cartridge holder support plate (33) that supports the cartridge holder (32) configured in this way has a substantially flat plate shape large enough to hold the cartridge holder (32) inside. A car is formed on opposing sides to support the cartridge holder (32) in a vertically movable manner, an IJ holder support wall (33a),
(33b) is provided. These cartridge holder support walls (33a), (33b) have vertical movement guide pins D7a), (37b), (37c), (37d) provided on the cartridge holder (32).
vertical movement guide grooves (61a), (61b> and (61c), (6
1d) is provided. These vertical movement guide grooves (
Among 61a) to (εId), vertical movement guide grooves (61a>, (61c) provided on the insertion/ejection port side of the disk cartridge (101) are vertical movement guide bins (61c).
37a), (37c) are cut out as slit grooves parallel to the spindle shaft (11) of the disk rotation drive device (3) with a width sufficient to insert the disk rotation drive device (3). On the other hand, one of the vertical movement guide grooves (61b) and (61d) is
Formed as a wide groove, also the spindle shaft (11)
A vertical movement guide bin (37
b), (37d) is this vertical movement guide groove (61
b), One side edge (61b,) on the rear side of (61d).

(61CI,) is designed to slide into and engage with.

The cartridge holder support plate (33) is rotatably mounted with an eject plate holding lever (62) for holding the eject plate (34), which will be described later, in the eject position against the biasing force of a tension coil spring. ing.

This eject plate holding lever (62) is rotatable by being supported by a support shaft (63) about the base end side. The distal end side of this eject plate holding lever (62) is engaged with an eject plate locking member provided on the eject plate (34), and the eject plate (
34) in the eject position (62a)
is provided, and the eject plate holding lever (62) is rotated to the base end where the engaging claw (62a) is provided.
An eject plate holding lever rotation pin (64) is installed to create the eject plate. This eject plate holding lever rotation pin (
64) is suspended into the cartridge holder (32) through a notch B (32b) opened on the minus side of the cartridge holder (32).

The eject plate holding lever (62) thus configured is biased in the direction shown by the arrow in FIG. 2 by the torsion coil spring (65), and the engaging claw (62a)
When the eject plate holding lever (62) is disengaged from the eject plate locking member, the lever rotation prevention piece (62b) is attached to the cartridge holder support plate (33).
It is locked to restrict rotation.

Further, the cartridge holder support plate (33) has a third notch (3) where the cartridge retraction lever (46) faces.
33C), a fourth notch (33d) facing the magnetic head device (6), and an eject plate (34) to be described later.
Eject plate sliding pin (66a) for sliding the disc cartridge in the insertion/removal direction of the disk cartridge (66
b).

(66c) and <66d) are provided.

An eject plate (34) is slidably attached to the cartridge holder support plate (33) configured as described above. The eject plate (34) has a flat slide B (34a) that slides in sliding contact with the cartridge holder support plate (33), and a disc rotation drive device (3) side on opposite sides of this slide part (34a). A rising wall (34b
), (34c). This slide part (34a) has a cartridge holder support plate (
eject plate slide bin (66) installed in
Slide grooves (71a) into which a) to (66(]) are respectively inserted.

(71b), (71c), and (71d) are provided. These slide grooves (71a) to (71d)
are eject plate slide bins (66a) to (66
d) are formed in an elongated shape in the insertion/removal direction of the disk cartridge at positions corresponding to the respective positions.

Further, the slide portion (34a) is provided with an eject plate locking member (72) that engages with an eject plate holding lever (62) provided on the cartridge holder support plate (33). This eject plate locking member (72) is connected to the engagement claw (62a) of the eject plate holding lever (62).
formed as a cylindrical body large enough to be latched to the
A screw (
73) is rotatably attached to the slide portion (34a).

Further, the slide portion (34a) has a fifth notch portion (34()) that faces the cartridge retraction lever (46).
1), the sixth notch (34e) where the magnetic head device (6) faces, and the rotational operation engagement piece (51) of the cartridge retraction operation lever (47) provided on the cartridge holder (32). Seventh notch (34f)
is provided. Then, these notches (34
d), (34e).

(34f) The sixth notch (34e)
One edge of the inner side where the disc cartridge is inserted (
34e,) so as to protrude into the notch (34e), so that when the magnetic head device (6) is installed at a recording position close to the optical disk, the magnetic head device (6) is attached to the optical disk. A magnetic head device holding mechanism (74) is provided for holding the magnetic head device at a predetermined height with respect to the signal recording surface. This magnetic head device holding mechanism (74) consists of an elastically displaceable plate spring (74a) whose tip side is bent into a substantially U-shape, and the top portion of the approximately U-shape on the tip side moves the magnetic head up and down. When the magnetic head device (6) is moved to a recording position close to the optical disk, the frame for elevating the magnetic head slides into engagement with the engaging surface (23a) provided on the frame member (23). The member (23) is held pressed.

Further, one side edge (34f,) of the seventh notch (34f) on the side of the disk cartridge insertion/ejection opening is such that when the eject plate (34) slides to the eject position,
The notch (34f) engages with a rotational operation engagement piece (51) protruding into the interior to rotate the cartridge retraction operation lever (47).

On the rear side of the seventh notch (34f) into which the disk cartridge (101) is inserted, there is an eject plate slide of an eject plate slide drive mechanism (35) that slides the eject plate (34) to the eject position. An operating portion (75) into which a pin is inserted and engaged is provided. This operation R (75) is formed as a flat plate having a substantially square planar shape, and the slide portion (34a
) is provided on one side edge of the rear side.

The operation II (75) is provided with a generally circular pin sliding hole (75a) into which the eject plate slide pin is inserted and engaged.

As shown in FIG.
) and an eject plate operation gear (7T) provided with an eject plate slide bin (76) that is rotationally driven by the eject motor (not shown). The eject motor and the eject plate operation gear (77) are connected by a plurality of connecting gear mechanisms (78) of different sizes. An eject plate slide bin (76) is installed at an eccentric position of the eject operation gear (77). This eject plate sliding mechanism (35) I2 connects the disk cartridge (101) to the cartridge mounting part (2).
), when the eject operation button (not shown) is operated and the eject motor is driven and the eject plate operation gear (77) is rotated, the eject plate slide pin (76) moves against the eject plate. (34)
The eject plate (34) is slidably engaged with the opening periphery of the bottle sliding hole (75a) to operate the eject plate (34), and the tension coil spring <52) stretched on the cartridge retraction operation lever lever 47) and the eject plate ( 34> and the chassis board (7), the eject plate (34) is slid to the eject position by sliding the eject plate (34) against the biasing force of a tension coil spring, which will be described later, which is stretched between the eject plate (34) and the chassis board (7).

Note that this eject plate slide door (76) is rotated to a position where it does not come into sliding contact with the bottle sliding hole (76a) when the eject plate (34) is not in the eject position.

The rising walls (34tl) and (34c) provided on opposite sides of the slide portion (34a)
A vertical slide groove (80a) is provided for vertically moving the cartridge holder (32) relative to the cartridge mounting hole (2) and for moving the disc cartridge (101) to an eject position for ejecting the cartridge.
, (80b).

(80c) and (806) are provided, respectively. These vertical slide grooves (80a), (80b)
(80c) and (80d) further include a parallel portion parallel to the insertion/removal direction of the disk cartridge (Lot), a first inclined portion that gently descends and slopes from this horizontal portion toward the rear side; and a second sloped portion that slopes sharply downward toward the rear side. The vertical slide grooves (8h) to (80d) formed in this way
) Vertical movement guide bins (37a) to (37d)
The cartridge holder (32), which is supported by the chassis board (7) through which it is inserted, has vertical slide grooves (80a) to
(80d) Vertical movement guide bins (37a) to (37
d) is guided to move up and down in the axial direction of the spindle shaft (11) of the disk rotation drive device (3), that is, with respect to the cartridge mounting portion (2), and to the eject position where the disk cartridge is ejected. Move operation is performed.

In addition, an eject plate (34) is installed near the vertical slide grooves (80b), (80d) on the inner side of the rising walls (34b), (34c) into which the disk cartridges are inserted. A fourth tension coil spring (81) is attached to each of them to constantly bias the insertion/removal port side. In this example,
One tension coil spring is omitted. Each of these tension coil springs (81) has one end rising up from a wall (3
4b), (34c), and the other end is fixed to the chassis board [7] with a spring locking pin (82a), (8
2b), the eject plate (3
4) is always urged toward the insertion/ejection opening of the disk cartridge (101).

Further, on the inner side of one of the rising walls (34c) into which the disk cartridge (101) is inserted, there is a vertical movement lever (24) of a frame member for lifting and lowering the magnetic head rotatably supported by the chassis board (7). ) is provided with a magnetic head lifting frame member up/down lever operating member (83) which is fitted into the lever operating bin (31) and rotates the magnetic head lifting frame member up/down lever (24).

This magnetic head lifting frame member vertical movement lever operating member (8
3) is provided to extend parallel to the slide portion (34a) from one side edge of the lower end side of one rising wall (34c) toward the other rising wall (34b). Near the tip of the vertically moving lever operating pin (83) of the frame member for lifting and lowering the magnetic head, the lever operating pin guide groove (83) into which the lever operating pin (31) is fitted and engaged is located.
3a) is formed as a long groove. The frame member for vertically moving the magnetic head formed in this manner has a vertical movement lever operating member (83) and 1-operating pin guide groove (83a).
) is fitted and engaged with the lever operating pin (31), and the eject plate (34) is slid, thereby vertically moving the frame member for elevating the magnetic head/XI- (24) and rotating the magnetic head elevating and lowering The frame member (23) is operated toward and away from the signal recording surface of the optical disc in a direction substantially perpendicular to it.

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

This front panel (90) is provided with an IJ insertion slot (91) into which a disk cartridge is horizontally inserted, and a lid (92a) divided into two vertically on the upper and lower edges of this cartridge insertion slot (91). and (92b>) are respectively attached so as to be rotatable in and out directions, and this raincoat (92a)
and (92b) are biased so as to close the cartridge insertion opening (91) with their free edges abutted against each other.

A description will be given of an operation state in which the above-described disk cartridge is mounted on the optical disk recording and/or reproducing apparatus configured as described above.

First, the state before the disk cartridge (101) is installed will be described.

To install the disk cartridge (101),
Operate the eject button (not shown) to release the eject plate (34
) to the eject position, and then remove the cartridge holder (
32) and the magnetic head elevating frame member (23) provided with the magnetic head (20) are moved to a raised position away from the disk table (12) of the disk rotation drive device [3), and the cartridge holder (32) is moved. The cartridge holding parts (36a) and (36b) are arranged to 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 slider (77) of the eject plate slide mechanism (35) is provided on the eject plate (34). (75) and a fourth tension coil spring (81) stretched across the eject plate (34) and the chassis board (7), and the cartridge retraction operation lever (
47), the eject plate (34) is slid toward the insertion side of the disk cartridge (101) against the biasing force of the tension coil spring (52).

Then, the eject plate holding lever (62) of the cartridge holder support plate (33) engages with the eject plate locking member (72) provided on the eject plate (34), and the eject position of the eject plate (34) is held. Ru.

In addition, with the sliding operation of the eject plate (34),
The seventh notch (34f) of this eject plate (34)
) The turning operation engagement piece (51) of the IJ retraction operation lever (47) is pulled into the disk cartridge (IOI) insertion side. Then, a cartridge retraction lever (46) connected to this cartridge retraction operation lever (47) is slid to the side of the insertion/ejection opening of the disk cartridge, and is rotatably supported on the tip side of the cartridge retraction lever (46). The cartridge retraction pin (44) of the cartridge retraction member (45) is inserted into the cartridge holder (32).
The disc cartridge (101) inserted into the cartridge holder (32) is held in a position away from contact with the disc cartridge (101) inserted into the cartridge holder (32).

Note that the shutter release pin (38) is provided at the initial position by a first tension coil spring (42) stretched across the shutter release lever (39) and the cartridge retraction operation lever (47). On the other hand, the erroneous operation prevention bottle (55) is similarly suspended in the cartridge holder (32) by a third tension coil spring (54) stretched across the erroneous operation prevention lever (53) and the cartridge holder (32). It is set at the initial position.

Further, as the eject plate (34) is slid, the magnetic head elevating frame member vertical lever operation member (83) and the magnetic head elevating frame member vertical lever (24) provided on the eject plate (34) are moved. are engaged with each other, the vertical movement lever (24) of the frame member for lifting and lowering the magnetic head is rotated, and the frame member (23) for lifting and lowering the magnetic head is moved from the disk table (12) of the disk rotation drive device (3). It is operated to move to a distant raised position.

At this time, in the loading state, the magnetic head elevating frame member (23) has an engaging surface (23a) provided on the magnetic head elevating frame member (23) by a leaf spring (74a) provided on the eject plate (34). The frame member (23) for raising and lowering the magnetic head is held in the recording position by pressing and urging the magnetic head, but when the eject plate (34) slides rearward, these engagements are released and the magnetic head It is raised against only the weight of the lifting frame member (23). Therefore, the eject plate slide mechanism (3) that raises this magnetic head elevating frame member (23)
5) The load on the motor is small, and a motor with relatively low output can be used.

When the magnetic head elevating frame member (23) is raised to the elevated position, that is, the eject position, the upper end edge of the vertical movement guide portion (24b) of the magnetic head elevating frame member vertical movement lever (24) The lifting engaging pin (29) provided on the magnetic head lifting frame member (23) engages with the magnetic head (20) to move the magnetic head (20) at least when the disk cartridge (101) is inserted. 20) is held in a position where it does not come into contact with this disk cartridge (101).

Then, in this state, insert the disk cartridge (101) through the cartridge insertion opening (91) of the front panel (90) through the upper and lower lids (with the insertion direction being the direction in which the attachment member (103) is attached). 92a) and (92b) are pushed open inward and inserted into the cartridge holder (32).

When the disk cartridge (101) is inserted into the cartridge holder (32), first, a part of the leading edge side corner of the cartridge is inserted into the cartridge holder (<32).
The erroneous insertion prevention bin (55) is rotatably attached to the holder. At this time, the disk cartridge (101)
If the insertion direction is correct, the disk cartridge (101) rotates the incorrect insertion prevention pin (55), and the disk cartridge (101)
will be inserted. On the other hand, if the disk cartridge (101) is inserted into the cartridge holder (32) in the wrong direction, the incorrect insertion prevention pin (55) prevents the disk cartridge (101) from being inserted.

When this disk cartridge (101) is further inserted, the shutter release bin (3) is inserted into the recess for entering the shutter release member provided in the cartridge (101).
8) is fitted and engaged. When fitting and engaging the shutter release bottle (3B) into the recess for entering the shutter release member,
The disc cartridge is pushed down toward the disc table (12) by a cartridge push-down member formed protruding from the upper plate portion (32a) of the cartridge holder (32) facing the shutter release bin (38), and the shutter release member The shutter release bin (38) is fitted into the entry recess (205).

When the disk 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 release bin (38), and the shutter member (103) is inserted into the cartridge by the shutter release bin (38). The shutter member (103) is moved in the direction of opening the opening of the disk cartridge against the biasing force of the provided torsion coil spring.

Then, from this state, the disk cartridge (1
01) into the cartridge holder (32), the eject plate holding lever rotating pin (64) of the eject plate holding lever (62) rotatably attached to the cartridge holder support plate (33) and the disk cartridge ( 1 (11), the eject plate holding lever (62) is rotated, and the eject plate locking member (72) provided on the eject plate holding lever (62) and the eject plate (34) comes into contact with each other. ) is released.As a result, the lock of the plate (34) is released, and the eject plate (34) is disengaged from the eject plate (34).
34) and the chassis board (7), the fourth tension coil spring (81) is used to slide the disk cartridge (101) toward the insertion/ejection opening side.

At the same time, the notch (3) of the eject plate (34)
The rotary operation engagement piece (5) of the cartridge retraction operation lever (47) that was engaged with the - side edge (34f,) of
1) is disengaged. As a result, the cartridge retraction bin (44), which was held in position outside the disk cartridge, is moved to the disk cartridge (101).
Cartridge retraction bottle fitting large hole (104
). The cartridge retraction operation lever (47) is rotated by a second tension coil spring (52) stretched between the cartridge retraction operation lever (47) and the cartridge holder (32). (47) is moved to the disk cartridge insertion side. As a result,
A cartridge retraction member (45) provided on the tip side of the cartridge retraction lever (46) connects the cartridge retraction operation lever (47) and the cartridge holder (32).
a second tension coil spring (52) stretched across the
to move the disc cartridge (101) in the disc cartridge insertion direction. As a result,
The disk cartridge (101) is positioned at the inner end of the cartridge holder (32), and openings (106) provided in the upper and lower surfaces of the disk cartridge (101) are fully opened.

Then, as the eject plate (34) is moved, the cartridge holder (32) is moved away from the eject plate (34).
) Vertical slide grooves (80a) to (80d
), the vertically movable guide bins (37a) to (37d) are guided and lowered in the axial direction of the spindle shaft (11) of the disk rotation drive device (3). That is, the vertical movement guide vinyls (37a) to (37d) are guided by the vertical movement slide grooves (80a) to (80d), and the vertical movement slide grooves (80a) to (80d)
In the position where the cartridge holder (32) is engaged with the second inclined part that is steeply inclined downward, the cartridge holder (32) is in the vertical movement guide groove (61) provided in the cartridge holder support plate (33).
a) to (61d). As a result,
The disk cartridge is positioned and mounted to the cartridge mounting portion (2). At this time, the position of the disk cartridge (101) is regulated by the height positioning bins (8), (9) provided on the chassis board (forced) and the disk cartridge reference bins (8a), (9a), and the position is regulated to a predetermined height. At the same time, the optical disc D housed in the disc cartridge (101) is mounted on the disc cartridge (12).

As the eject plate (34) is moved, the magnetic head elevating frame member vertical lever operating member (83) and the magnetic head elevating frame member vertical lever (24) provided on the eject plate (34) are moved. are engaged, and the vertical movement lever (24) of the frame member for lifting and lowering the magnetic head is rotated, and the frame member for lifting and lowering the magnetic head (23) is engaged with the shaft of the spindle shaft (11) of the disk rotation drive device (3). A descending operation is performed in the direction. When the magnetic head lifting frame member (23) is in a lowered state, the leaf spring (74a) provided on the eject plate (34) moves the magnetic head lifting frame member (23) downward.
3), and presses and biases this magnetic head elevating frame member (23). As a result, the magnetic head (20) movably supported by the magnetic head elevating frame member (23) is moved to the disk cartridge (101).
facing into the opening of the disk cartridge (101)
It is held at a predetermined height position relative to the signal recording surface of the optical disc D housed in the optical disc D, and is placed facing the optical pickup device (5), so that information signals can be recorded and reproduced.

In the optical disc recording and/or reproducing apparatus configured as described above, the leaf spring (74M) provided on the eject plate (34) is used only when recording and reproducing information signals on the optical disc. Since the frame member (23) for lifting and lowering the magnetic head is pressed and biased, this device can be used not only when the optical disk is horizontal to a horizontal plane but also when it is vertical.
The magnetic head (20) can be held at a predetermined height position relative to the optical disk during recording and reproduction.

Further, in the optical disk recording/reproducing apparatus configured as described above, the disk cartridge is stably drawn into the cartridge holder by the cartridge retracting member while preventing horizontal tilting, and reliable loading is performed. There is.

That is, as shown in FIGS. 1, 2, and 4, the cartridge retracting member (
A rib-shaped protrusion (98) is provided on the inner surface of the rear end of the cartridge holder (36a) on the side opposite to the side where the cartridge retracting member (45) is disposed.
It is installed protrudingly.

Then, manually move the disk cartridge (101) to a predetermined position with respect to the cartridge holding I (36a), (36b) of the cartridge holder (32), that is, as described above, the retraction bin (44) of the cartridge retraction member (45) When the cartridge (101) is inserted until it fits into the retractable bottle insertion hole (104), the cartridge (101)
is further pulled in the insertion direction by the movement of the cartridge retracting member (45), but in this state, the cartridge (IJ)
The portion of the cartridge (101) on the side opposite to the engaging portion with the retractable bottle (44) is brought into sliding contact with the protrusion (98) of the cartridge holding portion (36a).

Therefore, even if only the front end of the negative side of the cartridge (101) is pulled by the cartridge retracting member (45), the cartridge (101) is retracted in a normal state without tilting in the horizontal direction, and due to the downward movement of the cartridge holder (32), the chassis is A positioning hole (102a) is placed on the substrate (7).

(102b) is engaged with the positioning bins (8), (9) and is held at a predetermined height by the reference bins (aa), (9a). That is, the disc cartridge (101) is securely positioned and mounted in the cartridge mounting part (2), and the stored optical disc D is stably mounted on the turntable (12), and the opening (106) on the lower surface side is an optical pickup device (
5), the opening (106) on the top surface side is reliably matched with the magnetic head device (6).

Note that the protrusion (98) of the cartridge holder (32) is located on the side where the cartridge retracting member (45) is arranged.
The J-edge holding part (36b) may be provided with a protrusion on the inner surface of the front end, and in this case as well, the disc cartridge (101) inserted into the cartridge holder (32) is provided with a protrusion (9).
Horizontal inclination can also be prevented by retraction by pulling the cartridge retracting member (45) on one side while slidingly contacting the cartridge retracting member (45).

In addition, as shown in Fig. 5, a disk cartridge (10
1) A protrusion (99) is provided protrudingly on the side surface of the
99) may be brought into sliding contact with the inner surface of the cartridge holding portion (36a) or (36b) of the cartridge holder (32).

That is, the protrusion (99) is attached to the disk cartridge (10).
1) A rib-like protrusion is provided on the side opposite to the side surface on which the retractable bottle insertion hole (104) is formed, or a recess is provided as shown by the two-dot chain line in the same figure. A rib-like protrusion is provided on the side surface in which the bottle fitting hole (104) is formed at a portion spaced apart from the bottle fitting hole (104).

Even when the protrusion (99) is provided protrudingly on the disc cartridge (101) in this way, the cartridge holder (36a) or (3) of the cartridge holder (32) described above also
6b) The cartridge holder (32) is stably retracted and moved without tilting in the horizontal direction, as in the case where the protrusion (98) is provided protrudingly on the car) IJ jig mounting part (2). Positioned and mounted.

Note that the protrusion (99) protruding from the side surface of the disk cartridge (101) may be formed into a hemispherical shape as shown in FIG.

Although the present invention has been described in detail above, the present invention is not limited thereto, and can be modified in various ways without departing from the spirit of the present invention.

Note that the present invention is applicable not only to optical disk recording and/or reproducing apparatuses but also to floppy disk recording and reproducing apparatuses.

〔Effect of the invention〕

As described above, according to the present invention, during the retraction operation when loading the cartridge, the cartridge is stably retracted without tilting, and the cartridge is reliably positioned and installed in the cartridge mounting portion, and the opening portion is made to correspond accurately to the head device. At the same time, the disk can also be stably rotated without any problems, improving reliability.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to an optical disk recording and/or reproducing device, and FIGS. 1 and 2 are bottom views of a cartridge holder as the main part, showing the state in which the cartridge is installed. The figure is a partially separated perspective view of the entire device, Figure 4 is an exploded perspective view of the same, Figures 5A and B show the disk cartridge as the other side, A is a bottom perspective view with the shutter open, and B is FIG. 6 is a top perspective view with the shutter closed, and FIG. 6 is a perspective view of main parts of a modified example. In the figure, (2) is a cartridge mounting part, (32) is a cartridge holder, (34) is an eject plate, (36a),
(36b) is the cartridge holding part, (44) is the cartridge retraction pin, (45) is the retraction member, (90) is the front panel, (91) is the cartridge insertion slot, (98)
, (99) is a protrusion, (101) is a car) I
J.J., (104) is a pull-in pin bid. Agent: Hide Matsukuma 0I Car F socket holder °'/) wide surface 7 Fig. 1 Calf 1/76-sided y Fig. 2 Fig. 5 Modified example Fig. 6

Claims (1)

[Claims] 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 opening and a lowered position where a disc in the inserted cartridge is mounted on a turntable. , an eject operating member that moves the cartridge holder up and down; and a cartridge retracting member that pulls in a cartridge inserted into the cartridge holder to a predetermined position as the eject operating member lowers the cartridge holder. A disk drive device characterized in that a prevention means is provided between the cartridge holder and the cartridge inserted into the cartridge holder to prevent the cartridge from tilting in the horizontal direction when the cartridge is pulled in by the cartridge retracting member. . 2. The disk drive device according to claim 1, wherein a protrusion is provided on the cartridge guiding and holding portion of the cartridge holder as the preventing means. 3. The disk according to claim 1, wherein a protrusion is provided on a side surface of the cartridge inserted into the cartridge holder as the prevention means so as to come into sliding contact with a cartridge guiding and holding part of the cartridge holder. drive device.