JPH11353863A - Driver for information recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a driver for information recording medium capable of being made thinner than a conventional tray type driver and enhanced in reliability by preventing a user from touching an optical pickup directly at the time of loading/unloading a disc. SOLUTION: The driver for information recording medium comprises a movable holding member 100 taking a position projecting from the housing while holding an optical disc and a position inserted into the housing, and a chassis 101 disposed in the housing in order to hold the movable holding member 100 shifted to the inserted position. The movable holding member 100 is provided with a spindle motor 104 for driving an optical disc, and the chassis 101 is provided with an optical pickup unit 105 for irradiating the recording face of the optical disc with light, and a mechanism (shaft 106, lead screw 107, DC motor 108, gear 109, intermediate gear 110, etc.), for driving the optical pickup unit 105 along the recording face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording medium driving apparatus for performing at least one of reproduction, recording, and erasing of information on an information recording medium such as a CD and a DVD, and more particularly, to an information recording medium driving apparatus. The present invention relates to an information recording medium mounting / discharging mechanism.

[0002]

2. Description of the Related Art Heretofore, as this type of information recording medium driving device, there has been known a drawer type disk device in which a tray is slid in an ejecting direction when a disk as an information recording medium is mounted or ejected ( For example, see JP-A-9-223348). The tray is equipped with a spindle motor for rotating the disk, an optical pickup device, a feed mechanism for moving the optical pickup device in the radial direction of the disk, and a drive unit including a flexible wiring board for connecting these components in a signal circuit. Have been. When loading or ejecting a disk in this disk device, the tray projects from the device body, and the user directly attaches and detaches the disk to and from the turntable of the spindle motor in the drive unit.

An advantage of the drawer type disk device is that a clamping mechanism for attaching and detaching a disk to and from a turntable on a spindle motor is not required as compared with a tray type device having no drive unit mounted on the tray. In addition, there is no need for a drive unit avoidance moving mechanism for the drive unit to avoid the tray in accordance with the sliding operation of the tray when loading / unloading the disc, and a space for the movement stroke is not required. For this reason, a drawer type disk device is employed as a built-in disk device of a notebook personal computer, which is particularly desired to be thin. On the other hand, a tray-type disk device has been adopted as a disk-top type or tower-type personal computer internal disk device in which a slot size to be mounted is fixed and which does not need to be thinned.

[0004]

FIG. 7 is a perspective view showing the structure of a main part of a conventional drawer type disk device. A spindle motor 26 is mounted on the tray 12 protruding from the chassis 18, and an optical pickup device 23 is supported movably in the radial direction of the disk. At the time of loading / unloading the disc, the tray 12 is moved by the guide members 31b, 3 via the slide rails 31a, 32a.
It slides while being held at 2b, and moves in the directions of arrows A and B. Then, the tray 1 that moves in the direction of arrow A and projects
For 2, the user directly attaches and detaches a disk such as a CD or DVD to or from a turntable on the spindle motor 26. Since the optical pickup device 23 is installed near the turntable, the user may touch the objective lens 23a of the optical pickup device 23 with his or her hand during the operation of attaching and detaching the disk. In this case, the following problems may occur. (1) Deterioration of the light spot due to dirt, fingerprints, scratches, etc. on the objective lens 23a. (2) Deterioration of driving characteristics due to deformation or breakage of a support member (a leaf spring, a wire, or the like) of an actuator that drives the objective lens 23a. (3) Deformation or breakage of the optical components mounted on the optical pickup device and the flexible wiring board connecting them in a signal circuit. (4) Deterioration of the feed characteristics of the optical pickup device caused by dust adhering to a bearing provided on a feed mechanism provided in the feed mechanism for moving the optical pickup device in the radial direction of the disk, and scratches and dents on the guide rail.

As described above, in the conventional drawer-type disk device, the user can directly touch the optical pickup device when attaching or detaching the disk, so that the reliability of the disk device may be significantly reduced. there were.

Further, in recent years, large-capacity information recording media (DV
D) and other disks, the objective lens has a higher NA (0.
60) and short wavelength light sources (635 nm and 650 nm). However, when such a configuration is adopted, the reproduction / recording / erasing characteristics are deteriorated unless the inclination of the disk with respect to the optical pickup device is reduced. For this reason, it is desired to mount a so-called tilt correction mechanism that tilts the optical pickup device in accordance with the deflection of the disk or the like to minimize the amount of tilt with respect to the disk.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first object of the present invention is to make a device thinner than a conventional tray type, and to attach and detach an information recording medium. Another object of the present invention is to provide an information recording medium driving device capable of improving the reliability of the optical pickup device by preventing the user from directly touching the optical pickup device. Also,
A second object is to provide an information recording medium driving device capable of correcting tilt of an information recording medium in addition to the first object.

[0008]

According to a first aspect of the present invention, there is provided an information recording medium driving apparatus for performing at least one of reproduction, recording, and erasing of information on an information recording medium. A movable holding member that holds an information recording medium and can assume a projecting position protruding from the device housing and an insertion position inserted into the device housing, and holds the movable holding member moved to the insertion position. And a driving means for driving the information recording medium is provided on the movable holding member, and the chassis is irradiated with light on the recording surface of the information recording medium. And a driving mechanism for driving the optical pickup device along the recording surface.

In the information recording medium driving device according to the first aspect, the information recording medium is rotated by a movable holding member that moves to a projecting position protruding from the apparatus housing when the information recording medium is loaded or ejected. Since the motor is mounted, a mechanism for clamping the information recording medium and a mechanism for avoiding and moving the drive unit used in the conventional tray type device are not required, and the device can be made thinner than the conventional tray type device. It becomes possible. Moreover, when the movable holding member is moved to the protruding position, the optical pickup device that irradiates the recording surface of the information recording medium with light does not move together with the movable holding member and remains attached to the chassis. In the state, the risk of the user directly touching the optical pickup device is reduced, and the reliability of the device can be improved.

According to a second aspect of the present invention, in the information recording medium driving device of the first aspect, a shielding member for shielding the opening of the chassis when the movable holding member moves to the projecting position is provided. It is assumed that.

In the information recording medium driving device according to the present invention, when the movable holding member moves to the projecting position, the opening of the chassis is shielded by the shielding member. This makes it difficult for contaminants such as dust and dirt to enter the optical pickup device, thereby preventing the contaminants from adhering to the optical pickup device.

According to a third aspect of the present invention, in the information recording medium driving device of the second aspect, the shielding member shields the opening of the chassis when the movable holding member moves to the projecting position. A shielding wall provided on a movable holding member is used.

According to the third aspect of the present invention, when the movable holding member moves to the protruding position, the shielding wall provided on the movable holding member shields the opening of the chassis.

According to a fourth aspect of the present invention, in the information recording medium driving device of the second aspect, a door member rotatably supported by the chassis is used as the shielding member, and the door is rotatably supported by the movable holding member. A guide member that guides the rotation of the door member so as to open the door member that has blocked the opening of the chassis with the movement to the insertion position is provided on the movable holding member. It was done.

In the information recording medium driving device according to the present invention, when the movable holding member moves to the projecting position, the door member rotatably supported by the chassis shields the opening of the chassis. Then, when the movable holding member is moved from the projecting position to the insertion position, the rotation of the door member is guided by a guide member provided on the movable holding member with the movement, and the door member opens. .

According to a fifth aspect of the present invention, in the information recording medium driving device of the second aspect, a door member rotatably supported by the movable holding member is used as the shielding member, and the projecting portion of the movable holding member is used. A guide member that guides the rotation of the door member so as to open the door member that has blocked the opening of the chassis with the movement from the position to the insertion position is provided on the chassis. It was done.

In the information recording medium driving device according to the fifth aspect, when the movable holding member moves to the projecting position, the door member rotatably supported by the movable holding member shields the opening of the chassis. . When the movable holding member is moved from the projecting position to the insertion position, the movement of the door member is guided by a guide member provided on the chassis, and the door member is opened.

According to a sixth aspect of the present invention, in the information recording medium driving device of the first aspect, when the movable holding member moves between the projecting position and the insertion position, the optical pickup device is held by the movable holding member. It is characterized by being retracted to a position away from the member.

In the information recording medium driving device according to the present invention, when the movable holding member moves between the projecting position and the insertion position, the optical pickup device is moved to a position away from the movable holding member. Because of the retraction, the danger of the user directly touching the optical pickup device is further reduced, and the information recording medium moving with the movable holding member does not collide with the optical pickup device.

In order to achieve the second object,
The invention according to claim 7 is for reproducing information on an information recording medium,
In an information recording medium driving device that performs at least one of recording and erasing, a movable holding member that holds an information recording medium and can take a protruding position protruding from a device housing and an insertion position inserted into the device housing. And a chassis provided inside the device housing so as to hold the movable holding member moved to the insertion position, and a movable chassis tiltably supported inside the chassis. A driving means for driving the information recording medium provided on the member, an optical pickup device for irradiating the recording surface of the information recording medium with light on the movable chassis, and a drive for driving the optical pickup device along the recording surface; And a mechanism is provided.

In the information recording medium driving device according to the present invention, when the information recording medium is loaded or ejected, the movable holding member is moved to a protruding position protruding from the apparatus housing to rotationally drive the information recording medium. Since the motor is mounted, a mechanism for clamping the information recording medium and a mechanism for avoiding and moving the drive unit used in the conventional tray type device are not required, and the device can be made thinner than the conventional tray type device. It becomes possible. Further, when the movable holding member is moved to the protruding position, the optical pickup device that irradiates the recording surface of the information recording medium with light does not move together with the movable holding member, but can move freely in the chassis. Since the optical pickup device is still attached to the chassis, the risk of the user directly touching the optical pickup device is reduced, and the reliability of the device can be improved. Further, the movable chassis provided with the optical pickup device can be tilted in accordance with the deflection of the information recording medium or the like, so that tilt correction that minimizes the amount of tilt of the optical pickup device with respect to the information recording medium can be performed.

According to an eighth aspect of the present invention, in the information recording medium driving device of the seventh aspect, the movable holding member of the movable chassis is provided when the movable holding member moves between the projecting position and the insertion position. A drive means is provided for inclining the movable chassis so that the end on the side is separated from the movement path of the movable holding member.

In the information recording medium driving device according to the present invention, when the movable holding member moves between the projecting position and the insertion position, the movable chassis provided with the optical pickup device is tilted by the driving means. Thus, the end of the movable chassis on the movable holding member side is separated from the moving path of the movable holding member, so that the information recording medium moving with the movable holding member does not collide with the optical pickup device.

According to a ninth aspect of the present invention, in the information recording medium driving device of the eighth aspect, when the movable holding member moves between the projecting position and the insertion position, the optical pickup device is held by the movable holding member. A drive means for moving the member away from the movement path of the member is provided.

According to a ninth aspect of the present invention, when the movable holding member moves between the projecting position and the inserting position, the optical pickup device provided on the inclined movable chassis is driven. Since the movable holding member is moved away from the moving path of the movable holding member by the means, it is possible to more reliably prevent the information recording medium moving with the movable holding member from colliding with the optical pickup device.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. [Embodiment 1] FIG. 1 is a perspective view showing a schematic configuration of an information recording medium driving apparatus according to a first embodiment of the present invention. The present device has a movable holding member that holds a disk, which is a disc-shaped information recording medium, and can take a projecting position that protrudes from a device housing (not shown) and an insertion position inserted into the device housing. The apparatus includes a movable holding member 100 and a chassis 101 provided inside the apparatus housing so as to hold the movable holding member 100 moved to the insertion position. The movable holding member 100 is held by a guide mechanism so as to be movable in the directions of arrows A and B. This guide mechanism includes a rail engaging portion 10 provided integrally with the side end surface of the movable holding member 100.
0a, 100b and the rail engaging portions 100a, 100b
Rails 102a, 102 slidably engaging with
and guide members 103a and 103b fixed to the inner side wall of the chassis 101 and slidably holding the slide rails 102a and 102b.

A spindle motor 104 is fixed to the movable holding member 100 as driving means for driving the disk to rotate. On the other hand, the chassis 101 is provided with an optical pickup device 105 for irradiating the recording surface of the disk with light and a drive mechanism for driving the optical pickup device 105 along the recording surface. This optical pickup device 1
The drive mechanism 05 includes a shaft 106, a lead screw 107, a DC motor 108, a gear 109 provided at the end of a rotating shaft of the DC motor 108, and an intermediate gear 110. The optical pickup device 105 is held by a shaft 106 and a lead screw 107 so as to be slidable in the radial direction of the disk (the directions of arrows A and B). A rotational driving force is transmitted to the lead screw 107 by a DC motor 108, a gear 109, and an intermediate gear 110. By rotating the lead screw 107 with this rotational driving force, the optical pickup device 105 is driven so as to linearly move in the radial direction of the disk (the directions of arrows A and B). The reproduction, recording, and erasing of information is performed by forming a light spot on the information recording film on the recording surface of the disk by the objective lens 111 provided in the optical pickup device 105.

When a disk is mounted on the disk device having the above-described structure, the movable holding member 10 is mounted as shown in FIG.
0 is moved to a protruding position protruding from the chassis 101. Then, the disk 120 is mounted on the turntable of the spindle motor 104 as shown in FIG. Next, by pressing the decorative plate 112 provided on the movable holding member 100, the movable holding member 100 is pushed in the direction of arrow B as shown in FIG. An opening 113 is provided in the movable holding member 100, and the optical pickup device 105 forms a light spot on a disk mounted on a turntable of the spindle motor 104 through the opening 113 to reproduce / record information.・ Erase. At this time, the optical pickup device 105 is moved to an arbitrary position in the radial direction of the disk by the DC motor 108. When the disc 120 is ejected from the disc device, FIG.
(B) → As shown in FIG. 2 (a), an operation procedure reverse to that at the time of mounting is performed.

As described above, according to the present embodiment, when the user (user) mounts or dismounts the disc 120 on the turntable of the spindle motor 104 mounted on the movable holding member 100, the optical pickup device 105
1, the risk of damage or contamination of the optical pickup device 105 is reduced, so that the reliability of the disk device is improved.

In this embodiment, as shown in FIGS. 2A and 2B, the movable holding member 100 is
When the optical pickup device 105 protrudes from the optical disc 01, it is desirable that the optical pickup device 105 be retracted to a position farthest from the disk 120 (a position retracted into the chassis 101). The retracting operation of the optical pickup device 105 can be performed using the aforementioned DC motor 108 and the transmission mechanism (gear 109, intermediate gear 110, lead screw 107). By retracting the optical pickup device 105 when loading and ejecting the disk 120 in this manner,
The risk of the user directly touching the optical pickup device 105 is further reduced, and the disk 120 moving with the movable holding member 100 is
No more collision with 5.

[Embodiment 2] FIGS. 3 (a) to 3 (c)
FIG. 14 is an explanatory diagram of a disk mounting operation in the disk device according to the second embodiment of the present invention. In FIG. 3, portions common to those of the disk device according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the disk drive of the present embodiment, the movable holding member 100 is provided with an opening 1 provided in the chassis 101.
33 so that it can protrude from the chassis 101.
It is slidably held against it. Movable holding member 100
, A spindle motor 104 for rotating the disk 120 is fixed. An optical pickup device 105 and a driving mechanism for the optical pickup device 105 are provided in the chassis 101. As in the first embodiment shown in FIG.
6. It is slidably held in the radial direction of the disk by the lead screw 107. The reproduction / recording / erasing of information is performed by the objective lens 11 provided in the optical pickup device 105.
1 is performed by forming a light spot on the information recording film on the recording surface of the disk.

Further, in the disk drive of the present embodiment, the rotating shaft 130 is provided on the chassis 101, and the rotating shaft 1
A shielding door 131 as a door member is provided rotatably with respect to 30. At the side end of the shielding door 131, a projection 132 is formed which is pressed against a guide wall 134 as a guide member provided on the movable holding member 100.

In the disk device having the above-described structure, the disk 120
In the case of mounting, the movable holding member 100 is moved to a protruding position protruding from the chassis 101 as shown in FIG. At this time, the light shielding door 131 makes the chassis 101
Is shielded. Since the optical pickup device 105 and the feed mechanism (DC motor 108, gear 109, lead screw 107, and shaft 106) for moving the optical pickup device 105 in the radial direction of the disk are in a closed space formed by the chassis 101 and the shielding door 131, It is possible to prevent contaminants such as dust and dirt from infiltrating from the outside. FIG. 3B shows a state where the disk 120 is mounted on the turntable of the spindle motor 104. Also at this time, since the optical pickup device 105 is in the closed space formed by the shielding door 131 and the chassis 101, the user does not touch the optical pickup device 105 by mistake. FIG. 3C illustrates a state in which the decorative plate 112 of the movable holding member 100 is pressed to move the movable holding member 100 to the chassis 1.
This is a state where it has been moved to the insertion position in No. 01. FIG. 3 (b)
In the process of moving from the state of FIG. 3 to the state of FIG.
The protrusion 132 provided on the shielding door 131 is
The shielding door 131 is opened by being pressed and guided by the guide wall 134 provided at 0. The optical pickup device 105 forms a light spot on the disk 120 through an opening 113 provided in the movable holding member 100, and reproduces, records, and erases information. Disk device to disk 120
3 (c) → FIG. 3 (b) → FIG.
As shown in (a), an operation procedure reverse to that at the time of mounting is performed.

As described above, according to the present embodiment, when the user (user) mounts or dismounts the disk 120 on the turntable of the spindle motor 104 mounted on the movable holding member 100, the optical pickup device 105 is provided with the shielding door. 131
And the chassis 101, the risk of damage or contamination of the optical pickup device 105 is further reduced, and the reliability of the disk device is improved.

[Embodiment 3] FIGS. 4 (a) to 4 (c)
FIG. 14 is an explanatory diagram of a disk mounting operation in the disk device according to the third embodiment of the present invention. In FIG. 4, parts that are the same as those of the disk device according to the first embodiment are given the same reference numerals, and descriptions thereof will be omitted. In the disk device of the present embodiment, the movable holding member 140
It is slidably held on the chassis 101 so that it can protrude from an opening 133 provided in the chassis 101. On the movable holding member 140, the spindle motor 104 for rotating the disk is fixed, and a rotating shaft 141 is provided. The shield door 142 is rotatably held on the rotating shaft 141.
A projection 143 pressed by a guide wall 145 provided on the inner wall of the chassis 101 is provided at a side end of the shielding door 142. On the other hand, an optical pickup device 105 is provided on the chassis 101, and is slidably held in the radial direction of the disk by a shaft 106 and a lead screw 107, similarly to the first embodiment shown in FIG. . The reproduction, recording, and erasing of information is performed by the objective lens 111 provided on the optical pickup device 105 by using the disc 12.
This is performed by forming a light spot on the information recording film on the recording surface of No. 0.

The disk 120 having the above configuration is
When mounting is performed, the movable holding member 140 is moved to a protruding position protruding from the chassis 101 as shown in FIG. At this time, the light shielding door 142 causes the chassis 101
Is shielded. Since the optical pickup device 105 and the feed mechanism (DC motor 108, gear 109, lead screw 107 and shaft 106) for moving the optical pickup device 105 in the radial direction of the disk are in the closed space formed by the chassis 101 and the shielding door 142, It is possible to prevent contaminants such as dust and dirt from infiltrating from the outside. FIG. 4B shows a state where the disk 120 is mounted on a turntable of the spindle motor 104. Also at this time, since the optical pickup device 105 is in the closed space formed by the shielding door 142 and the chassis 101, the user does not touch the optical pickup device 105 by mistake. FIG. 4C shows that the decorative plate 112 of the movable holding member 140 is pressed to move the movable holding member 140 to the chassis 1.
This is a state where it has been moved to the insertion position in No. 01. FIG. 4 (b)
In the process of moving from the state of FIG. 4 to the state of FIG.
The projection 143 provided on the shielding door 142 is pressed and guided by the guide wall 145 provided on the inner wall of the chassis 101, so that the shielding door 142 is opened. Optical pickup device 105
A light spot is formed on the disk 120 through an opening 113 provided in the movable holding member 100 to reproduce, record, and erase information. Disk device to disk 120
4 (c) → FIG. 4 (b) → FIG.
As shown in (a), an operation procedure reverse to that at the time of mounting is performed.

As described above, according to the present embodiment, when the user (user) mounts or dismounts the disk 120 on the turntable of the spindle motor 104 mounted on the movable holding member 100, the optical pickup device 105 is provided with the shielding door. 142
And the chassis 101, the risk of damage or contamination of the optical pickup device 105 is further reduced, and the reliability of the disk device is improved.

[Embodiment 4] FIGS. 5 (a) to 5 (c)
FIG. 14 is an explanatory diagram of a disk mounting operation in the disk device according to the fourth embodiment of the present invention. In FIG. 5, portions common to those of the disk device according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the disk device of the present embodiment, the movable holding member 100
It is slidably held on the chassis 101 so that it can protrude from an opening 133 provided in the chassis 101. The spindle motor 104 for rotating the disk is fixed to the movable holding member 100, and a shielding wall 150 is provided. On the other hand, an upper end facing the opening 133 of the chassis 101 is a shielding wall 151 protruding toward the movement path side of the movable holding member. The chassis 101 includes the optical pickup device 1
1, and is slidably held in the radial direction of the disk by a shaft 106 and a lead screw 107, similarly to the first embodiment shown in FIG. The reproduction, recording, and erasing of information is performed by forming a light spot on the information recording film on the recording surface of the disk 120 by the objective lens 111 provided in the optical pickup device 105.

In the disk drive having the above-described configuration, the disk 120
5 is mounted, the movable holding member 100 is moved to a protruding position protruding from the chassis 101 as shown in FIG. At this time, the shielding wall 150 provided on the movable holding member 100 and the shielding wall 1 protruding from the end of the chassis 101
51, the opening 13 provided in the chassis 101
3 is shielded. The optical pickup device 105 and a feed mechanism (a DC motor 10) for moving the optical pickup device 105 in the disk radial direction.
8, the gear 109, the lead screw 107, and the shaft 106) are the chassis 101, the shielding wall 150, and the shielding wall 1
51, it is possible to prevent infiltration of contaminants such as dust and dirt from the outside. FIG. 5B shows a state where the disk 120 is mounted on the turntable of the spindle motor 104. Also at this time, since the optical pickup device 105 is in the closed space including the shielding wall 150, the shielding wall 151, and the chassis 101, the user does not accidentally touch the optical pickup device 105. FIG. 5C illustrates a state in which the decorative plate 112 of the movable holding member 100 is pressed and the movable holding member 100 is pressed.
Is moved to an insertion position in the chassis 101. The optical pickup device 105 forms a light spot on the disk 120 through an opening 113 provided in the movable holding member 100, and reproduces, records, and erases information. At this time, the decorative plate 112 and the shielding wall 151 of the chassis 101
Thus, the opening 133 of the chassis 101 is shielded. Also, since the shielding wall 150 of the movable holding member 100 is outside the disk 120, the optical pickup device 10
5 does not hinder the operation of reproducing, recording and erasing information. When ejecting the disc 120 from the disc device, the operation procedure reverse to that at the time of loading is performed as shown in FIG. 5C → FIG. 5B → FIG. 5A.

As described above, according to the present embodiment, when a user (user) mounts or dismounts the disk 120 on the turntable of the spindle motor 104 mounted on the movable holding member 100, the optical pickup device 105 uses the shielding wall. 150
Since the optical pickup device 105 is located in a closed space including the shielding wall 151 and the chassis 101, the risk of damage or contamination of the optical pickup device 105 is further reduced, and the reliability of the disk device is improved.

[Embodiment 5] FIGS. 6A to 6D show
It is an explanatory view of a disk mounting operation in the disk device according to the fifth embodiment of the present invention. In FIG. 6, portions common to those of the disk device according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the disk device of the present embodiment, the movable holding member 100
It is slidably held on the chassis 101 so that it can protrude from an opening 133 provided in the chassis 101. A spindle motor 104 for rotating a disk is fixed to the movable holding member 100. The chassis 101 includes a movable chassis 160 that can be tilted and rotated about a rotation shaft 161.
Is held. The movable chassis 160 is provided with the optical pickup device 105, and is slidably held in the radial direction of the disk by the shaft 106 and the lead screw 107, similarly to the first embodiment shown in FIG. The reproduction, recording, and erasing of information is performed by forming a light spot on the information recording film of the disk by the objective lens 111 provided in the optical pickup device 105.

When a large-capacity recording medium such as a DVD is used as the disk 120, the light spot is narrowed by increasing the NA and shortening the wavelength.
It is necessary to reduce the angle error between the lens and the objective lens 111. In the disk device of the present embodiment, the movable chassis 16
By tilting the disk 120 by rotating it, tilt correction for correcting an angular error due to the deflection of the disk 120 can be performed. The optical pickup device 105 is equipped with a tilt sensor (not shown). The tilt sensor detects a tilt angle of the disk with respect to the optical pickup device 105, and performs tilt correction (tilt correction) by tilting the movable chassis.

The disk 120 having the above configuration is
In the case of mounting, the movable holding member 100 is moved to a protruding position protruding from the chassis 101 as shown in FIG. At this time, by rotating the movable chassis 160 about the rotation shaft 161 by a driving unit (not shown), the movable chassis 160 is inclined such that a portion near the opening 133 is lowered. Further, the optical pickup device 105 is moved to the opening 1 by the driving means including the shaft 106, the lead screw 107, the DC motor 108, the gear 109, the intermediate gear 110, and the like described in the first embodiment.
Move to a position close to 33.

FIG. 6B shows a state where the disk 120 is mounted on the turntable of the spindle motor 104. Also at this time, the movable chassis 160 is connected to the opening 133.
The optical pickup device 105 is moved to a position close to the opening 133 by inclining so that a portion close to. Therefore, the disk 120 and the optical pickup device 105
Means a state most distant in the height direction indicated by arrows E and F in the figure. FIG. 6C illustrates a state in which the decorative plate 112 of the movable holding member 100 is pressed to move the movable holding member 100 to the chassis 10.
1 has been moved to the insertion position. The optical pickup device 105 includes an opening 1 provided in the movable holding member 100.
13, a light spot is formed on the disk 120,
Plays, records, and deletes information.

In the process of moving the movable holding member 100 from the protruded state in FIG. 6B to the inserted state in FIG. 6C, the movable chassis 160 is moved so that a portion close to the opening 133 is lowered. The optical pickup device 105 is tilted and moved to a position close to the opening 133. As a result, the disk 120 and the optical pickup device 105 are located farthest from each other in the height direction indicated by arrows E and F in the figure, so that the disk 120 is inclined and the spindle is tilted as shown in FIG. Even when mounted on the turntable of the motor 104, the disk 120 and the optical pickup device 105 do not hit. In addition, the movable holding member 1
00 is provided with an opening that avoids the movable chassis 160. When ejecting the disk 120 from the disk device, as shown in FIG. 6 (c) → FIG. 6 (b) → FIG. 6 (a),
The operation procedure reverse to that at the time of mounting is performed.

As described above, according to the present embodiment, by tilting the movable chassis 160 provided with the optical pickup device 105, it becomes possible to perform tilt correction for minimizing the amount of tilt with respect to the disk 120.

Further, since the movable chassis provided with the optical pickup device 105 is retracted downward from the moving path of the movable holding member 100 when the disk 120 is loaded or ejected, the movable chassis moves together with the movable holding member 100. The disk 120 does not collide with the optical pickup device 150, and the reliability of the disk device can be further improved.

[0048]

According to the first to ninth aspects of the present invention, the apparatus can be made thinner than the conventional tray type.
Since the risk of the user directly touching the optical pickup device when mounting or discharging the information recording medium is reduced, there is an effect that the reliability of the device can be improved.

In particular, according to the second to fifth aspects of the present invention, it becomes difficult for contaminants such as dust and dirt to enter the chassis through the opening of the chassis, and the contaminants adhere to the optical pickup device. Therefore, there is an effect that the reliability of the apparatus can be further maintained.

In particular, according to the third to fifth aspects of the present invention, the opening and closing operation of the shielding member for shielding the opening of the chassis is automatically performed with the movement of the movable holding member to the projecting position. There is an effect that an operation only for opening and closing the shielding member is not required.

In particular, according to the invention of claim 6, when mounting or discharging the information recording medium, the risk of the user directly touching the optical pickup device is further reduced, and the information recording medium is moved together with the movable holding member. Since the information recording medium does not collide with the optical pickup device, there is an effect that the reliability of the device can be further improved.

In particular, according to the seventh to ninth aspects of the invention, there is an effect that the tilt correction for minimizing the amount of tilt of the optical pickup device with respect to the information recording medium can be performed.

In particular, according to the eighth and ninth aspects of the invention, the information recording medium moving together with the movable holding member does not collide with the optical pickup device when the information recording medium is loaded or ejected. There is an effect that the reliability of the device can be further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of a disk device according to a first embodiment of the present invention.

FIG. 2A is an explanatory view of a state where a movable holding member of the disk device is protruded. (B) is an explanatory view of a state where a disk is mounted on a movable holding member of the disk device. (C) is an explanatory view of a state where the movable holding member of the disk device is inserted.

FIG. 3A is an explanatory view of a state in which a movable holding member of a disk device according to a second embodiment has protruded; (B) is an explanatory view of a state where a disk is mounted on a movable holding member of the disk device. (C) is an explanatory view of a state where the movable holding member of the disk device is inserted.

FIG. 4A is a diagram illustrating a state in which a movable holding member of a disk device according to a third embodiment is protruded. (B) is an explanatory view of a state where a disk is mounted on a movable holding member of the disk device. (C) is an explanatory view of a state where the movable holding member of the disk device is inserted.

FIG. 5A is an explanatory view of a state where a movable holding member of a disk device according to a fourth embodiment is projected. (B) is an explanatory view of a state where a disk is mounted on a movable holding member of the disk device. (C) is an explanatory view of a state where the movable holding member of the disk device is inserted.

FIG. 6A is an explanatory view of a state in which a movable holding member of a disk device according to a fifth embodiment is projected. (B) is an explanatory view of a state where a disk is mounted on a movable holding member of the disk device. (C) is an explanatory view of a state where the movable holding member of the disk device is inserted. (D) is an explanatory view of a state where the disk is tilted and mounted on the movable holding member of the disk device.

FIG. 7 is a perspective view showing a schematic configuration of a disk device according to a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 movable holding member 100 a, b rail engaging part 101 chassis 102 a, b slide rail 103 a, b guide member 104 spindle motor 105 optical pickup device 106 shaft 107 lead screw 108 DC motor 109 gear 110 intermediate gear 111 objective lens 112 decorative plate 120 Disc 131 Shielding door 132 Projection 133 Chassis opening 134 Guide wall 140 Movable holding member 141 Rotation axis 142 Shielding door 143 Projection 145 Guide wall 150 Shielding wall on movable holding member 151 Chassis side shielding wall 160 Movable chassis 161 Rotation axis

Claims (9)

[Claims] 1. An information recording medium driving device for performing at least one of reproduction, recording, and erasing of information on an information recording medium, comprising: a protruding position that holds the information recording medium and protrudes from an apparatus housing; A movable holding member capable of taking an insertion position inserted into the device housing; and a chassis provided inside the apparatus housing so as to hold the movable holding member moved to the insertion position. A driving unit for driving the information recording medium; an optical pickup device for irradiating the recording surface of the information recording medium with light; and a driving mechanism for driving the optical pickup device along the recording surface on the chassis. An information recording medium driving device, comprising: 2. The information recording medium driving device according to claim 1, further comprising a shielding member for shielding the opening of the chassis when the movable holding member moves to the projecting position. Drive. 3. The information recording medium driving device according to claim 2, wherein the shielding member is provided on the movable holding member so as to shield an opening of the chassis when the movable holding member moves to the projecting position. An information recording medium driving device using a shielded wall provided. 4. The information recording medium drive according to claim 2, wherein a door member rotatably supported by the chassis is used as the shielding member, and the movable holding member is moved from the projecting position to the insertion position. An information recording medium drive characterized in that a guide member for guiding rotation of the door member is provided on the movable holding member so as to open the door member that has blocked the opening of the chassis with the movement. apparatus. 5. The information recording medium driving device according to claim 2, wherein a door member rotatably supported by the movable holding member is used as the shielding member, and the movable holding member is inserted from the projecting position to the insertion position. A guide member for guiding the rotation of the door member so as to open the door member that has blocked the opening of the chassis with the movement of the chassis, is provided on the chassis. apparatus. 6. The information recording medium drive according to claim 1, wherein the optical pickup device is separated from the movable holding member when the movable holding member moves between the projecting position and the insertion position. An information recording medium driving device, wherein the information recording medium driving device is evacuated. 7. An information recording medium drive for performing at least one of reproduction, recording, and erasure of information on an information recording medium, the information recording medium holding the information recording medium and projecting from the apparatus housing and the inside of the apparatus housing. A movable holding member that can take an insertion position inserted into the device housing; a chassis provided inside the device housing to hold the movable holding member moved to the insertion position; and a tiltable inside of the chassis. An optical pickup device that irradiates light to a recording surface of the information recording medium; and a driving unit that drives the information recording medium. A drive mechanism for driving the optical pickup device along the recording surface. 8. The information recording medium driving device according to claim 7, wherein when the movable holding member moves between the projecting position and the insertion position, an end of the movable chassis on the movable holding member side is moved. An information recording medium driving device, further comprising a driving means for inclining the movable chassis so as to move away from a moving path of the movable holding member. 9. The information recording medium driving device according to claim 8, wherein when the movable holding member moves between the projecting position and the insertion position, the optical pickup device is moved from a moving path of the movable holding member. An information recording medium driving device, comprising a driving means for moving the recording medium away from the recording medium.