JP2004152376A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device which can ejects a tray manually without using tools even when a power source is not supplied to the optical disk system. <P>SOLUTION: The optical disk device includes a casing 40, the tray 1 which is arranged within the casing 40 and moves to withdraw or eject a disk between a loading start position and a loading completion position making recording and reproducing possible, an ejection button 21 which is arranged at a front panel 22 disposed on the front of the casing 40 and instructs the start of the movement to withdraw or eject the tray 1, ejection levers 32 and 33 which are disposed within the casing 40 and are moved by pushing-in of the inside surface section of the ejection button 21 when the ejection button 21 is pushed in to more than the prescribed extent, and a tray ejection lever 37 which is coupled to the tray 1 and the ejection levers 32 and 33 and ejects the tray 1 to the loading start position by movement of the ejection levers 32 and 33. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a compact disc (CD), a compact disc (CD) -R (Recordable) / RW (ReWritable), a DVD (Digital Versatile Disc) -ROM (Read Only Memory), and a DVD (Digital Radio (DRAM)). The present invention relates to an optical disk device for recording or reproducing information on or from an optical disk such as an access memory, and more particularly, to an optical disk device having an eject mechanism.
[0002]
[Prior art]
2. Description of the Related Art An optical disk device that records and reproduces data on and from an optical disk such as a CD-ROM and a DVD-ROM includes a motor and a plurality of gears that do not apply excessive force to a drive mechanism when the optical disk is loaded or unloaded. A loading mechanism is provided. For example, by inserting a tray on which an optical disk is placed to a predetermined position, the tray is automatically moved to a position where recording and reproduction can be performed. Further, the tray is automatically ejected to a predetermined position by pressing the eject button.
[0003]
By the way, the automatic operation as described above is not performed under various circumstances such as a failure of the device. Therefore, in order to prevent the occurrence of a situation in which the recording data of the optical disk mounted in the optical disk device is damaged or the like, the optical disk is forcibly taken out of the optical disk device. There is also a hole (pinhole) for emergency eject operation. Then, the user inserts a thin rod such as a pin or a clip into the pinhole for the emergency eject operation, moves the gear meshing with the rack, and can disengage the mesh, so that the emergency ejection is performed. It is configured. (For example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-6-180918 (page 2-3, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, in the above-described prior art, when there is no pin or the like, the tray of the optical disk device to which power is not supplied cannot be ejected. Therefore, in order to take out the optical disk in the optical disk device, a personal computer connected to the optical disk device is required. (PC) had to be started, which was a loss of time.
[0006]
In addition, a pinhole for emergency eject operation is usually provided on the front panel, and dust and air flow in from the pinhole, causing a problem in the data recording / reproducing operation of the optical disk device.
[0007]
An object of the present invention is to solve such a problem, and it is an object of the present invention to realize an optical disk device that can manually eject a tray without using a tool even when power is not supplied to the optical disk device. .
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a housing, a tray arranged in the housing and for mounting a disk, and a front panel provided on a front surface of the housing, Equipped with an eject button for instructing the start of retraction or discharge movement,
[0009]
When the eject button is pushed in a predetermined amount or more, the tray is forcibly ejected out of the housing.
With the above configuration, when the eject button of the optical disk device is pressed even when the power is not supplied, the tray is unlocked and the device can be ejected without using a tool, so that the optical disk device is connected to the optical disk to take out the optical disk. It is not necessary to start the personal computer in question, and time loss can be reduced.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an appearance of an optical disk device, and FIG. 2 is a perspective view showing a state where a tray is pulled out.
1 and 2, the optical disk device 20 includes a housing 40 and a tray 1 which is attached to the housing 40 so as to be able to be taken in and out. When the user places the optical disc 10 on the tray 1 and presses the eject button 21 provided on the front panel 22 or pushes the tray 1 inward of the housing 40, the tray 1 Automatically, and the optical disk 10 is clamped on a turntable in the housing 40.
[0011]
The optical disk 10 includes a disk-shaped disk substrate made of a transparent synthetic resin such as polymethyl methacrylate or polycarbonate, and a signal recording layer formed on a main surface of the disk substrate. This optical disc is configured so that a light beam can be condensed and irradiated on the signal recording layer, or an information signal can be written or read on the signal recording layer by irradiating the light beam.
[0012]
FIG. 3 is a perspective view showing the internal mechanism of the optical disk device with the tray ejected, and FIG. 4 is a perspective view showing the internal mechanism of the optical disk device with the tray housed.
[0013]
3 and 4, the optical disk device 20 is configured such that the tray 1 on which the optical disk 10 is mounted can be freely inserted into and removed from a main chassis 2 as a drive main body. That is, guide protrusions 1a are provided on both side surfaces of the tray 1, and these guide protrusions 1a are fitted into horizontal guide portions (not shown) provided on the main chassis 2, whereby the tray 1 is moved in a linear direction parallel to the disk surface. And is transported between a tray discharge position shown in FIG. 3 and a tray storage position shown in FIG.
[0014]
In the main chassis 2, as shown in FIG. 5, a pickup unit 5 configured by supporting a mechanical chassis 3 on which a disk recording / reproducing mechanism is mounted via a plurality of vibration isolating members 4 is arranged. . On the mechanical chassis 3, a spindle motor 13, an optical pickup 14, an optical pickup feed mechanism, and the like are mounted. On the motor shaft of the spindle motor 13, a turntable 16 for driving the optical disk 10 while sandwiching it between the optical disk 10 and the clamper 12 shown in FIG. 3 is attached.
[0015]
As shown in FIGS. 5 and 6, on both sides of the pickup unit 5 on the far side in the tray insertion direction, rotating shafts 6 protrude, and these rotating shafts 6 are attached to the main chassis 2. Is rotatably held by the shaft holding portion 7. A rotation guide shaft 8 protrudes from a surface of the pickup unit 5 on the front side in the tray insertion direction. The rotation guide shaft 8 is held in a guide groove 9 a formed on a peripheral surface of a mechanical unit rotation mechanism 27 provided in the main chassis 2. Therefore, the rotation guide shaft 8 of the pickup unit 5 is vertically guided along the guide groove 9a by the rotation of the mechanical unit rotation mechanism 27, whereby the pickup unit 5 tilts with the shaft holding portion 7 as a fulcrum, It is configured to perform a disk clamp operation and a clamp release operation.
[0016]
Further, as shown in FIGS. 3 and 4, the main chassis 2 holds a clamper 12 via a clamper holder 11. Further, a mechanism system for tray loading and disk clamping is provided in the main chassis 2.
[0017]
Further, the pickup unit 5 shown in FIG. 5 supports the mechanical chassis 3 on the base 41 of the pickup unit 5, is supported by the base 41 via a plurality of vibration isolating members 4, and is housed in the main chassis 2.
[0018]
FIG. 7 is a diagram for explaining the configuration and operation of an eject lock mechanism of the optical disk device according to one embodiment of the present invention, and includes a CD-ROM as shown in FIGS. 1 to 6, The present invention is applied to a loading mechanism provided in an optical disk device for recording and reproducing an optical disk such as a DVD-ROM. The eject lock mechanism is mechanically arranged in the housing of the optical disk device 20, and is provided with a normal eject button 21 and an emergency pinhole 23 on the front panel 22. In particular, the optical disk device 20 to which power is not supplied is provided. On the other hand, in order to manually eject the tray 1 in a completely closed state, the lock is released by pushing the forced eject levers 32 and 33 with the pins 30 through the pin holes 23. In addition, it is characterized in that a mechanism is used in which the ejection button 21 is pushed deeper than usual, whereby the forcible eject lever 32 is pushed to release the lock and eject.
[0019]
The configuration of the eject lock mechanism will be described.
The pressing portion 21 a of the eject button 21 maintains a posture protruding outward from the outer surface of the front panel 22. A projecting portion 29 projecting from one end of the inner surface portion 21b of the eject button 21 toward the inside of the housing is formed, and the projecting portion 29 electrically ejects when the eject button 21 is pushed inward. The optical disk 10 is ejected from the optical disk device 20 as usual by being brought into contact with the eject switch 34.
[0020]
In an emergency eject operation, that is, in an operation for forcibly removing the optical disk 10 from the optical disk device 20 due to a failure of the device or the like, one end of the inner surface portion 21b of the eject button 21 is pushed by pushing the eject button 21 deeper. The lock is released by hitting the forcible eject lever 32 and pressing the forcible eject lever 32.
[0021]
The forcible eject lever 32 has an opening 43 for engaging with a cam 41 formed on the forcible eject lever 33. The forcible eject lever 32 is turned around the support shaft 39 in the direction of arrow A by pressing the eject button 21. . By the rotation of the forced eject lever 32, the cam 41 moves in the opening 43, and the forced eject lever 33 is moved in the direction of arrow B in conjunction with the operation. The movement of the forced eject lever 33 causes the gear 35 in contact with the side gear 33a formed on the side surface of the forced eject lever 33 to rotate in the direction of arrow C. The gear 37 b of the side gear 33 a of the forced eject lever 33 and the gears 37 a and 37 b formed on both side surfaces of the tray discharge lever 37 described later are formed so as to mesh with the gear 35, respectively. Therefore, by the rotation of the gear 35, the tray discharge lever 37 formed to mesh with the gear 35 moves in the direction of arrow D. The gear 37b of the tray discharge lever 37 meshes with a rack gear (not shown) inside the guide protrusion 1a (see FIG. 3) of the tray 1, and the tray discharge lever 37 is moved in the direction of arrow D. Accordingly, the rack gear is also moved, and as a result, the tray 1 is ejected to the outside of the optical disk device. The rack gear is connected to the tray 1 and performs the same movement as the movement of the tray 1. Note that the forced eject lever 33 and the tray discharge lever 37 are arranged so that their height directions are different from each other. Therefore, the gear 35 is formed in a cylindrical shape. Thus, the positions at which the gear 35 is engaged with the gear 35 are different from each other, so that the forced eject lever 33 and the tray discharge lever 37 do not collide. Further, a stopper 31 made of a spring is arranged on the inner surface side of the eject button 21 so that the eject button 21 is not forcibly ejected even if it is lightly pressed.
[0022]
Emergency ejection is also possible in other ways. That is, the pin 30 such as a thin wire rod is inserted from the pinhole 23, hits one end 32 a of the forced eject lever 32, and is further pushed to move the forced eject lever 32 to release the lock. The ejection lock is released by pressing the pin 30 to rotate the forced eject lever 32 in the direction of arrow A about the support shaft 39 in the same manner as when the eject button 21 is pressed deeply. As a result, the cam 41 moves in the opening 43, and the forced eject lever 33 is moved in the direction of arrow B in conjunction with the operation. By the movement of the forced eject lever 33, the gear 35 in contact with the side surface 37a of the forced eject lever 33 is rotated in the direction of arrow C, and further formed by the rotation of the gear 35 so as to mesh with the gear 35. The tray ejection lever 37 thus moved is moved in the direction of arrow D. When the tray discharge lever 37 is moved in the direction of arrow D, the rack gear inside the guide protrusion 1a (see FIG. 3) of the tray 1 is also moved accordingly, and as a result, the tray 1 is moved outside the optical disk device. To be discharged to
[0023]
As described above, when the power is turned on, when the eject button 21 is lightly pressed, the eject switch 34 is pressed to perform the electrical ejection, but when the power is turned off, the eject button 21 is pushed in by a predetermined amount or more, thereby enabling manual ejection.
[0024]
The present invention is not limited to the above-described embodiment, and can be variously modified in an implementation stage without departing from the scope of the invention. For example, the pinhole 23 formed in the front panel 22 of the optical disc device 20 is a small-diameter hole, and dust or dust enters the inside of the optical disc device 20 through this hole, causing a defect in an optical system component. Therefore, if the eject lock mechanism of the present invention is used, the pinhole 23 is unnecessary, and there is no need to worry about intrusion of dust and dirt. Therefore, the pinhole 23 provided on the front panel 22 of the optical disc device 20 is not required. May not be formed.
[0025]
【The invention's effect】
As described above, according to the present invention, even when power is not supplied to the optical disk device, the tray can be unlocked and ejected without using a tool by pressing the eject button for a predetermined amount or more. If there is no such tool, it is not necessary to start a personal computer to which the optical disk device is connected in order to take out the optical disk loaded in the optical disk device, and time loss can be eliminated.
[0026]
In addition, since the eject lock can be released by pressing the eject button for a predetermined time or more as described above, the emergency eject pinhole provided on the front panel can be eliminated, and dust and garbage can be discharged into the aircraft. In addition, it is possible to prevent intrusion of the front panel, and it is not necessary to make a pinhole in the front panel, so that the cost can be reduced.
[0027]
Further, the number of components of the forced eject lever does not need to be increased as compared with the conventional product, so that an increase in cost can be suppressed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the appearance of an optical disk device.
FIG. 2 is a perspective view showing a state where a tray is pulled out from the optical disk device.
FIG. 3 is a perspective view showing an internal mechanism of the optical disk device in a state where a tray is discharged.
FIG. 4 is a perspective view showing an internal mechanism of the optical disk device in a state where the tray is stored.
FIG. 5 is an exploded perspective view showing a configuration of a pickup unit of the optical disk device of FIG.
FIG. 6 is a side view of the pickup unit of FIG. 5;
FIG. 7 is a configuration diagram showing an eject lock mechanism of the optical disc device of one embodiment according to the present invention.
[Explanation of symbols]
Reference Signs List 1 Tray 1a Guide projection 2 Main chassis 3 Mechanical chassis 4 Anti-vibration member 5 Pickup unit 6 Rotating shaft 7 Axis holder 8 Rotating guide shaft 9a Guide groove 11 Clamper holder 12 Clamper 13 Spindle motor 14 Optical pickup 16 Turntable 21 Eject Button 21a Pressing portion 21b Inner surface portion 22 Front panel 23 Pinhole 29 Projecting portion 31 Spring 32, 33 Forced eject lever 33a Side gear 34 Eject switch 35 Gear 37 Tray discharging lever 37a, 37b Gear 39 Support shaft 41 Cam 43 Opening

Claims (5)

A housing;
A tray that is disposed in the housing and on which a disc is placed;
An eject button arranged on a front panel provided on the front surface of the housing and instructing the tray to start drawing or discharging.
An optical disc device characterized in that when the eject button is pushed in a predetermined amount or more, the tray is forcibly ejected out of the housing. A housing;
A tray that is disposed in the housing and performs a pull-in or discharge movement between a loading start position and a loading completion position where recording and reproduction can be performed on the disc,
An eject button arranged on a front panel provided on the front surface of the housing and instructing the start of drawing or discharging of the tray,
An eject lever provided in the housing and moved by pushing an inner surface portion of the eject button when the eject button is pushed over a predetermined amount, and connected to the tray and the eject lever, and by movement of the eject lever, An optical disc device comprising: a tray ejection lever for ejecting the tray to the loading start position. The eject button is formed with a projecting portion projecting from one end of the inner surface of the eject button. When the eject button is pushed in a predetermined amount, the projecting portion is electrically connected to an eject switch provided in the housing. 3. The optical disk device according to claim 1, wherein the optical disk device is connected to the optical disk and ejects the tray. 3. The optical disk device according to claim 2, wherein the tray ejection lever meshes with a gear meshed with the eject lever, and ejects the tray to the outside of the housing as the eject lever moves. When power is supplied, the eject button is pushed in by a predetermined amount and is electrically connected to the eject switch. When the power is not supplied, the eject button is pushed in by a predetermined amount or more, and the eject lever is pushed in. 3. The optical disk device according to claim 2, wherein the tray is discharged out of the housing.

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