JPH07254202A - Disk apparatus - Google Patents

Abstract

PURPOSE:To obtain a disk apparatus having the constitution, wherein a tray can be taken in/out by manual operation. CONSTITUTION:A CD-ROM driving device 1 comprises a subchassis for supporting a tray 2, a tray sliding mechanism 4 tor slidably supporting the tray 2, an optical pickup part 5, a turntable 6 for rotating and driving a disk (CD-ROM), an engaging mechanism 7, which engages the tray 2 when the tray 2 is moved to a disk replacing posit:ion, and a locking mechanism, which locks the tray 2 when the tray 2 is moved to the disk-replacing position. The engaging mechanism 7 comprises the first engaging member, which engages the tray 2 with the engaging hole provided in a chassis 10 when the tray 2 is moved to the disk replacing position, and a second engaging member 33, which engages the tray 2 with the recess part of the trace 2 when the trace 2 is moved to the disk replacing position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk device, and more particularly to a disk device incorporated in a notebook personal computer or the like as a CD-ROM drive device.

[0002]

2. Description of the Related Art For example, a compact disc (diameter 12 cm) reproduced by a laser pickup is used as a storage medium for storing information such as a database and software.
Or 8 cm) is being used. Therefore, a built-in CD-ROM drive device that is built in the housing is being developed so that it can be incorporated in a miniaturized notebook personal computer or the like.

In the conventional apparatus, the tray on which the disc is placed is driven by a motor, and when the tray moves out of the housing, the disc is placed on the turntable in the tray.
The tray is returned to the housing by the driving force of the motor again. However, in the method of driving the tray with the motor as described above, a motor for driving the tray and a transmission mechanism for transmitting the driving force to the tray are required, and it is difficult to make the apparatus smaller and thinner by that amount. , Could not be built into the case of a laptop computer.

For this reason, a disk device is being developed in which the above-mentioned motor and transmission mechanism are unnecessary and the tray is manually moved to a disk mounting position inside the housing or a disk exchange position outside the housing.

[0005]

However, in the apparatus configured to move the tray by manual operation, there is no mechanism for locking the tray at a predetermined disc exchange position when the tray is pulled out of the housing, and therefore the tray is In many cases, the tray was pulled out only before the disk exchange position, or the tray was pulled out too much until it came into contact with the pull-out prevention pin of the tray.

Therefore, when the disc is placed in the tray with the tray pulled out to the front of the disc exchange position, the disc may come into contact with the casing and be damaged because the tray is not completely ejected from the casing. was there. If the tray is repeatedly pulled out until it comes into contact with the pull-out prevention pin, the pull-out prevention pin will be damaged,
There was a risk that the tray would fall out of the housing.

Therefore, an object of the present invention is to provide a disk device which solves the above problems.

[0008]

According to a first aspect of the present invention, there is provided a tray which is moved to a disc mounting position inside a casing or a disc exchange position pulled out of the casing by a manual operation, and a tray provided as a recording medium. When a turntable for rotating a disc, a pickup provided on the tray for detecting information recorded on the disc, and provided on either the tray or the housing, the tray is moved to a disc exchange position. And a locking member that locks the tray by engaging with the other of the tray and the housing.

According to a second aspect of the invention, the locking member is
It is characterized in that it is supported by an elastic member provided on one of the tray and the casing, and presses the other of the tray and the casing laterally while the tray moves. According to a third aspect of the present invention, there is provided a tray which is moved to a disc mounting position inside the casing or a disc exchange position pulled out of the casing by a manual operation, and a turntable which is provided on the tray and rotates a disc as a recording medium. A pickup provided on the tray for detecting information recorded on the disc; and a pickup provided on the tray, which engages with the casing when the tray moves to a disc exchange position, A first locking member that locks the tray so as to restrict movement, and a first locking member that is provided in the housing and that engages with the tray when the tray is moved to the disc replacement position and is in the other direction of the tray. A second locking member that locks the tray so as to restrict the movement of the tray.

[0010]

According to the first aspect, when the tray is moved to the disc exchange position, the tray is locked by the locking member, so that the tray can be prevented from falling off and the disc can be accurately mounted. According to the second aspect of the present invention, rattling of the tray is prevented by the pressing member laterally pressing either the tray or the housing while the tray is moving.

According to the third aspect, when the tray is moved to the disc exchange position by the first locking member, movement of the tray in one direction is restricted, and the second locking member prevents the tray from moving. By restricting the movement in the direction, the tray is securely locked at the disc exchange position to prevent the tray from falling off.

[0012]

1 to 4 show an embodiment of a disk device according to the present invention. In each figure, CD-as a disk device
The ROM drive device 1 (hereinafter referred to as "device") is a built-in device that is built in the housing of a notebook computer (not shown).

This device 1 generally has a tray 2 for inserting a disk (not shown), a sub-chassis 3 for supporting the tray 2, and a tray sliding mechanism 4 for slidably supporting the tray 2. , An optical pickup unit 5 provided on the sub-chassis 3, and a mounted disc (C
A turntable 6 for rotating the D-ROM), a locking mechanism 7 for locking the tray 2 when the tray 2 moves to the disc exchange position, and a lock for the tray 2 when the tray 2 moves to the disc mounting position. And a lock mechanism 8.

FIG. 1 shows the tray 2 with the top plate 9 shown in FIG. 3 removed.
Shows a state in which the tray has been moved to the disc mounting position housed in the apparatus, and FIG. The tray 2 is formed such that a part of a disk (not shown) protrudes from the tray 2 and has a lateral width smaller than the outer diameter of the disk, and slides in the A and B directions by a manual operation. The disc replacement position or the disc mounting position is reached.

Therefore, the apparatus 1 has trays A, B
Since a driving mechanism (composed of a motor, a transmission mechanism, etc.) for driving in the direction is not provided and the number of parts is reduced accordingly, the size and thickness are reduced. Reference numeral 10 denotes a chassis, which includes a storage portion 10a for storing the above-mentioned mechanisms, and a cover portion 10b for covering the disc protruding from the tray 2 so as to cover the disc below.
A space below the cover 9b is a space, for example, the device 1
Other devices in the notebook computer to which the is assembled will be installed.

A front bezel 11 is fixed to the front end of the tray 2 and slides integrally with the tray 2 in the A and B directions. A switch button 12 for unlocking the lock mechanism 8 when the tray 2 is pulled out is provided at the center of the front bezel 11. Therefore, when the switch button 12 is turned on in the state shown in FIG. 1, the front bezel 11 projects forward (direction A) by about 5 to 10 mm to facilitate the pulling operation of the tray 2, as described later.

As shown in FIGS. 3 and 5, the tray 2 is
A disk facing surface 2a forming a space for facing the disk, an opening 2b for a pickup and a turntable formed in the disk facing surface 2a, and a finger for taking out the disk placed on the disk facing surface 2a. And an arc-shaped opening 2c for ejecting the disc.

The disk facing surface 2a has a width dimension smaller than the disk outer diameter so as to cover the housing portion 10a of the chassis 10, and is formed so as to cover an area of about ⅔ of the disk. As a result, the device 1 can be downsized. As shown in FIGS. 3 and 6, the sub-chassis 3 is provided on the right side of the quadrangular frame 3a having the tray 2 mounted and fixed and having openings for a pickup and a turntable. , And a guide rail pressing member 14 screwed to the left side surface 3c of the frame 3a. The guide rail pressing member 14 has a pair of pressing portions 14a and 14b protruding above the frame 3a.

As shown in FIGS. 3, 4 and 7 to 10, the tray sliding mechanism 4 has a pair of guide rail mechanisms 15 and 16 mounted on both sides of the sub chassis 3. The pair of guide rail mechanisms 15 and 16 are respectively fixed to the movable side rail 17 fixed to the bracket 3b of the sub chassis 3, the fixed side rail 18 extending parallel to the movable side rail 17, and the movable side rail 17. And a slide rail 19 which is interposed between the side rail 18 and slidably engaged with both members.

Movable side rail 17 and fixed side rail 18
Has a C-shaped cross section and has edges 17a and 18a bent inward. A rack 17b extending in the longitudinal direction is provided on the lower edge 17a of the movable rail 17. Further, the upper edge 1 of the fixed side rail 18
8a is provided with a rack 18b extending in the longitudinal direction.

The slide rail 19 has an H-shaped cross section, and has a first track 19a with which the edge 17a of the movable rail 17 engages, and a first track 19a with which the edge 18a of the fixed rail 18 engages. Second orbit 19b, first orbit 19a and second
Groove 19c formed between the track 19b and the track 19b.
A pinion 20 is rotatably housed at an intermediate position in the longitudinal direction of the groove 19c of the slide rail 19. The upper and lower parts of the pinion 20 are respectively on the movable side rail 1
7, and is engaged with the racks 17b and 18b of the fixed side rail 18.

In the guide rail mechanism 15, the movable side rail 17 is screwed to the side wall 10c of the chassis 10 and the fixed side rail 18 is screwed to the bracket 3b of the sub chassis 3 which supports the tray 2. Therefore,
When the tray 2 is pulled out, the fixed side rail 18 slides in the A direction with respect to the slide rail 19 and the pinion 20.
To rotate. As the pinion 20 rotates, the slide rail 19 slides in the A direction with respect to the movable rail 17.

Further, as shown in FIG. 11, the movable side rail 17 of the guide rail mechanism 16 has the pressing portions 14a, 1a of the guide rail pressing member 14 provided on the sub-chassis 3.
It is screwed to 4b. The pressing portions 14a and 14b
Are bent into a crank shape so as to function as leaf springs, and bend outward when fastened to the movable side rail 17.

Therefore, the movable-side rail 17 has the pressing portion 1
Due to the elastic restoring force of 4a and 14b, the tray sliding direction (A,
It is pressed in the X direction, which is orthogonal to the (B direction), to prevent rattling in the lateral direction and to press the pressing portions 14a and 14b.
Thus, the dimensional error of the chassis 10 and the sub chassis 3 can be absorbed. As shown in FIG. 8A, when the movable side rail 17 is pressed in the X direction, the movable side rail 17
A first gap S1 is formed between the fixed side rail 18 and the fixed side rail 18, a second gap S2 is formed between the fixed side rail 18 and the second track 19b of the slide rail 19, and the movable side rail 17 is formed. A third gap S3 is formed between the slide rail 19 and the first track 19a.

Therefore, the above-described first to third gaps S are provided between the rails 17 to 19 of the guide rail mechanism 16.
Since 1 to S3 are formed, the sliding resistance between the rails 17 to 19 is reduced. Therefore, the guide rail mechanism 16 can slidably support the tray 2 with low friction, and the movable side rail 17 is pushed in the X direction to slide the tray 2 in a state without rattling in the lateral direction. You can

Further, the fixed side rail 18 and the movable side rail 17
The slide rail 19 interposed between the fixed side rail 1 and
8 and the movable side rail 17 are slidably engaged, so that the movable side rail 17 can be moved with a stroke twice as much as the movement amount of the slide rail 19. Therefore, the guide rail mechanisms 15 and 16 can extend the stroke for guiding the tray 2 from the disk mounting position inside the housing to the disk exchange position outside the housing, and the movable side rail 17 is provided.
By pushing in the X direction, rattling of the tray 2 in the lateral direction can be prevented and the tray 2 can be pulled out smoothly.

Therefore, since the vibration due to the sliding movement of the tray does not propagate to the turntable 6 and the pickup section 5 provided on the tray 2, the deterioration of the detection accuracy when detecting the information recorded on the disk recording surface is prevented. It Thus, the tray 2 is slidably guided by the guide rail mechanisms 15 and 16 interposed between both sides of the sub-chassis 3 and the side walls 10c and 10d of the chassis 10, and the tray 2 is placed at the disc mounting position. There are rails 17-
19 is housed in the chassis 10 as shown in FIG.

Then, when the tray 2 is pulled out in the A direction and moved to the disc exchange position, the slide rail 19 slides in the A direction by the distance L with respect to the fixed side rail 18 as shown in FIG. The side rail 17 slides in the A direction by a distance L with respect to the slide rail 19.
Further, as shown in FIGS. 2, 3 and 12, above the sub-chassis 3, the pickup unit 5 and the turntable 6 are provided.
A drive unit 21 having is provided. The drive unit 21 is attached to the base 22, a base 22 fixed to the upper side of the sub chassis 3, a pickup unit 5 attached to the base 22, a pickup drive unit 23 for moving the pickup unit 5 in the disc radial direction. It consists of a turntable 6.

The pickup driving section 23 includes a pickup driving motor 24 provided on the lower surface of the base 22, a transmission mechanism 25 composed of a plurality of gears, a lead screw 26 driven via the transmission mechanism 25, and a lead screw 26.
And a guide shaft 27 that extends in parallel with and guides the pickup unit 5. Therefore, the pickup portion 5 is provided so as to face the opening 22a of the base 22 extending in the disc radial direction, and both sides thereof are slidably guided by the lead screw 26 and the guide shaft 27.

Since the pickup section 5 has the engaging section 28 which engages with the thread section of the lead screw 26, when the lead screw 26 is rotationally driven by the rotation of the pickup driving motor 24, it moves in the disk radial direction. To do. The turntable 6 has a turntable driving motor 29 in the lower part thereof. The turntable drive motor 29 drives the disc clamped on the turntable 6 at a constant rotation speed when the tray 2 reaches a predetermined mounting position in the apparatus 1.

As shown in FIGS. 7 and 13, the locking mechanism 7 is a mechanism for locking the tray 2 when the tray 2 moves to the disc exchange position shown in FIG. The locking mechanism 7 is provided on the tray 2, and is a first locking that locks the tray 2 by engaging the locking hole 30 formed in the chassis 10 when the tray 2 moves to the disc replacement position. Member 3
1 and a second locking member 33 that is provided on the side wall 10c of the chassis 10 and that locks the tray 2 by engaging the concave portion of the tray 2 when the tray 2 moves to the disc replacement position.

As shown in FIG. 14, the first locking member 31 is provided on the end of the bracket 3b of the subchassis 3, and the rivet 3 is attached to the lower surface 3d of the end of the bracket 3b.
It is composed of a leaf spring 31a fastened by No. 4 and an engaging portion 31b provided at the tip of the leaf spring 31a. Locking part 31b
Is a sliding contact surface 31c for slidingly contacting the chassis 10, and the chassis 1
The locking surface 31d is locked in the locking hole 30 of 0, and the inclined surface 31e is used when the locking portion 31b is separated from the locking hole 30.

Therefore, before the tray 2 is moved to the disc exchange position, as shown in FIG. 14 (A), in the first locking member 31, the sliding contact surface 31c of the locking portion 31b is the chassis 10.
And the leaf spring 31a is bent in the C direction.
That is, the sliding contact surface 31c of the locking portion 31b is caused by the leaf spring 31a.
Is pressed against the chassis 10, the reaction force of the leaf spring 31a acts on the tray 2. Therefore, tray 2
The vertical spring is prevented by the spring force of the leaf spring 31a.

Since the engaging portion 31b is made of synthetic resin, the frictional resistance is relatively small. Therefore, the sliding contact surface 31
Friction at the time of c slidingly contacting the chassis 10 is reduced, and the movement of the tray 2 is not hindered. Then, when the tray 2 is moved to the disc exchange position, the locking portion 31b is displaced in the D direction as shown in FIG.
No. 0 locking hole 30 and the locking surface 31d has a locking hole 3
It abuts the edge of 0. As a result, the tray 2 is restricted from moving in the A direction.

When the tray 2 moves in the B direction, the inclined surface 31e of the locking portion 31b rides on the edge of the locking hole 30 and is displaced in the C direction to be in the unlocked state. Therefore, the tray 2 is restricted from moving in the A direction only at the disc exchange position by the engagement of the first locking member 31 and the locking hole 30, and is allowed to move in the B direction.

As shown in FIG. 15, the second locking member 33.
Is composed of a roller 35 rolling on the side wall 2e of the tray 2 and a roller support member 36 rotatably supporting the roller 35. The roller 35 moves the tray 2 to move the tray 2.
When the tray 2 moves to the disk mounting position or the disk exchange position, it fits into the recesses 2f and 2g provided in the side wall 2e and restricts the movement of the tray 2 while rolling the side wall 2e.

One end 36a of the roller support member 36 is fastened to the side wall 10d of the chassis 10 by a rivet 37, and the roller 35 is supported by the tip 36c of the arm portion 36b. The arm portion 36b of the roller support member 36 functions as a leaf spring that presses the roller 35 in the E direction. That is,
The roller support member 36 rotatably supports the roller 35, and also functions as a leaf spring that presses the roller 35 against the side wall 2e of the tray 2. When moved to the position, the pressing force of the roller supporting member 36 causes the concave portion 2 to move.
The tray 2 is locked by fitting with f and 2g.

As shown in FIGS. 7 and 16, the lock mechanism 8 is provided on the mounting portion 45a of the frame 3a of the sub-chassis 3, and is locked by the locking roller 38 provided on the bottom 10f of the chassis 10. And a solenoid 40 provided on the mounting portion 45b of the frame 3a of the sub-chassis 3 for rotating the lock lever 39 to the locked position or the unlocked position.

The lock lever 39 is, as shown in an enlarged view in FIG. 16, a shaft 41 which stands upright on the frame 3a of the sub chassis 3.
Arm 39c having at its tip a bearing 39a that fits in the end and a claw 39b that engages with the locking roller 38 of the chassis 10.
And a connecting portion arm 39d connected to the plunger 43 driven by the solenoid 42. Solenoid 4
When the switch button 12 of the front bezel 11 described above is turned on, No. 2 is excited and attracts the plunger 43. The end of the plunger 43 penetrates and is connected to a hole 39e formed in the connecting arm 39d of the lock lever 39.

The plunger 43 pulls the connecting arm 39d by the electromagnetic force of the solenoid 42. Therefore,
The lock lever 39 is biased in the G direction by a torsion spring (not shown), and this spring force causes the claw portion 39 to move.
The lock roller 38 is brought into engagement with the lock roller 38b to be locked. Then, when the plunger 43 is attracted by the electromagnetic force of the solenoid 42, the plunger 43 is rotated about the shaft 41 in the H direction and the claw portion 3 is rotated.
9b is separated from the locking roller 38 and is in the unlocked state.

As shown in FIG. 13, the sub chassis 3
The mounting portion 46 of the frame 3a is provided with an ejecting pressing member biased in the B direction by a coil spring 47. The ejecting pressing member has a long hole 48a that fits into a pin 49 standing upright from the frame 3a of the subchassis 3, and is slidably mounted in the A and B directions. One end of the coil spring 47 is hooked on the hooking pin 3d of the sub-chassis 3, and the other end is the hooking portion 4 of the ejecting pressing member 48.
It is hooked on 8b.

Therefore, when the lock by the lock mechanism 8 is released, the ejecting pressing member becomes the coil spring 47.
The rear portion 10g of the chassis 10 is pressed by the spring force of.
Due to the reaction, the sub chassis 3 moves in the A direction. As a result, the tray 2 provided on the sub chassis 3
The front bezel 12 moves in the direction of a predetermined distance A from the housing of a laptop computer (not shown), and the operation of pulling out the tray 2 becomes easy. Then, the front bezel 12 is manually A
When it is pulled in the direction, the tray 2 moves to the disc exchange position as shown in FIG.

Further, as shown in FIG. 4, a circuit board 51 for driving and controlling each part of the drive unit 21 is attached to the lower surface of the tray 2. This circuit board 51 is
The drive unit 2 is connected via the flexible cable 52.
1 pickup 5, turntable 6, pickup driving motor 24 and a substrate 53 for external connection. Therefore, the pickup 5, turntable 6, and pickup driving motor 24 perform a predetermined operation according to the control signal output from the circuit board 51.

The flexible cable 52 is interposed in the gap between the sub chassis 3 and the side wall of the housing portion 10a of the chassis 10 in a U-shape so as to allow the tray 2 to slide. It is provided so as not to interfere. Here, the operation of the CD-ROM drive device 1 having the above configuration will be described. As shown in FIGS. 1, 12, and 13, the apparatus 1 before mounting the disc has a tray 2 housed in the apparatus. When the tray 2 is installed in the device, as shown in FIG.
A lock mechanism 8 provided on the sub chassis 3 as shown in FIG.
Lock lever 39 is locked to the locking roller 38 of the chassis 10 and, as shown in FIG.
The roller 35 of No. 3 is fitted in the recess 2f of the tray 2,
The tray 2 and the sub-chassis 3 are locked at the mounting position in the device.

When the switch button 12 of the front bezel 11 is turned on, the plunger 43 is attracted by the electromagnetic force of the solenoid 42, and the lock lever 39 rotates about the shaft 41 in the H direction to move the claw portion 39b. The lock roller 38 is separated from the locking roller 38 and is in the unlocked state. In this way, when the lock of the sub chassis 3 by the lock mechanism 8 is released, the ejecting pressing member shown in FIG. 13 presses the rear portion 10g of the chassis 10 by the spring force of the coil spring 47. Due to the reaction, the sub chassis 3 and the tray 2 move in the A direction.

The roller 35 of the locking member 33 is fitted in the recess 2f of the tray 2, but as shown in FIG.
The ejecting pressing member is the rear portion 10g of the chassis 10.
When is pressed, it rolls on the inclined portion of the concave portion 2f and makes sliding contact with the side wall 2e of the tray 2. Therefore, the sub-chassis 3 and the tray 2 move in the direction A for a predetermined distance to a position where the front bezel 12 projects from the housing of the notebook computer (not shown) and the operation of pulling out the tray 2 is easy. When the front bezel 12 is manually pulled in the A direction, the movable rails 17 of the pair of guide rail mechanisms 15 and 16 slide in the A direction along the slide rails 19 as shown in FIG. The slide rail 19 slides in the A direction along the fixed side rail 18.

Further, when the front bezel 12 is pulled in the A direction, the sub chassis 3 and the tray 2 slide in the A direction while being guided by the pair of guide rail mechanisms 15 and 16. During the sliding operation in the A direction, the roller 35 of the locking member 33 rolls while being pressed by the side wall 2e of the tray 2, so that the tray 2 is prevented from rattling in the lateral direction and is stable and smooth. Slide.

Further, the above-mentioned guide rail pressing member 1
4 pushes the movable side rail 17 of the guide rail mechanism 15 in the X direction, the rattling of the tray 2 in the lateral direction is prevented, and the tray 2 can be pulled out smoothly. 2 and 1
7, when the tray 2 is moved to the disc exchange position, the roller 35 of the locking member 33 is click-fitted into the recess 2g of the tray 2 as shown in FIG. As shown in (B), the locking portion 3 of the locking member 31.
1b is displaced in the D direction and fits into the locking hole 30 of the chassis 10, and the locking surface 31d abuts on the edge of the locking hole 30. As a result, the tray 2 is locked at the disc replacement position and its movement in the A direction is restricted.

Therefore, since the roller 35 of the locking member 33 fits into the recess 2g of the tray 2 as described above in the process of pulling the front bezel 12 in the direction A, the tray 2 is clicked.
Will be locked, and the feeling of operation will be good. Therefore, the tray 2 is prevented from being pulled too much in the direction A and the tray 2 is prevented from falling off, or the tray 2 is not stopped before reaching the disc replacement position because the disc replacement position is unknown.

When the tray 2 is locked at the disc exchange position in this way, the disc is clamped on the turntable 6 and then the front bezel 11 is pressed in the B direction. When the front bezel 11 is pressed in the B direction, the roller 35 of the locking member 33 rolls in the concave portion 2g of the tray 2 to reach the side wall 2e, and the locking member 31 causes the inclined surface 3 of the locking portion 31b.
1e rides on the edge portion of the locking hole 30 and is displaced in the C direction to be in the unlocked state.

Therefore, the tray 2 slides in the direction B from the disc exchange position while being guided by the pair of guide rail mechanisms 15 and 16, and returns to the disc mounting position shown in FIGS. 1, 8 and 13. Also in that case, the roller 3 of the locking member 33
Since 5 rolls while being pressed by the side wall 2e of the tray 2, the tray 2 is prevented from rattling in the lateral direction and slides stably and smoothly.

When the tray 2 arrives at the disc mounting position, the roller 35 of the locking member 33 click-fits into the recess 2f of the tray 2 and the lock lever 39 of the lock mechanism 8 locks the chassis 10. The roller 38 is locked. Therefore, it is possible to feel by touch that the tray 2 has arrived at the disc mounting position by a click feeling when the roller 35 of the locking member 33 is fitted into the recess 2f of the tray 2.

The present invention is a CD-type disc as in the above embodiment.
The same applies not only to the ROM drive device, but also to other disk-shaped recording media such as CDs, magnetic disks, magneto-optical disks, and optical disks.

[0054]

As described above, according to the first aspect of the present invention, when the tray is moved to the disc exchange position, the tray is locked by the locking member, so that the tray can be prevented from falling off and the disc can be accurately removed. Can be attached to. Further, according to the second aspect, since the locking member pushes the tray or the other side of the tray laterally during the movement of the tray, rattling of the tray can be prevented.

According to the third aspect, when the tray is moved to the disc exchange position by the first locking member, the movement of the tray in one direction is restricted, and the second locking member prevents the tray from moving. Since the movement in the direction is regulated, the tray can be reliably locked at the disc replacement position to prevent the tray from falling off.

[Brief description of drawings]

FIG. 1 is a perspective view of a CD-ROM drive device as an embodiment of a disk device according to the present invention.

FIG. 2 is a perspective view showing a state in which a tray is pulled out.

FIG. 3 is an exploded perspective view of a CD-ROM drive device.

FIG. 4 is an exploded perspective view continued to the lower part of FIG.

FIG. 5 is a plan view of the tray.

FIG. 6 is a diagram of a sub-chassis.

FIG. 7 is a plan view showing a state where both sides of the sub chassis are supported by guide rail mechanisms.

FIG. 8 is a vertical sectional view showing a guide rail mechanism and a pressing member.

FIG. 9 is a side view for explaining the guide rail mechanism when the tray is stored.

FIG. 10 is a side view for explaining the guide rail mechanism when the tray is pulled out.

FIG. 11 is an enlarged view showing a guide rail mechanism and a pressing member.

FIG. 12 is a plan view with a top plate removed.

FIG. 13 is a plan view in which a part of the tray is cut away.

FIG. 14 is a side sectional view showing, in an enlarged manner, the operation of the first locking member.

FIG. 15 is an enlarged plan view showing the operation of the second locking member.

FIG. 16 is an enlarged plan view showing a lock lever.

FIG. 17 is a plan view showing a state in which the tray disc is pulled out to the exchange position.

[Explanation of symbols]

 1 CD-ROM drive device 2 Tray 3 Sub chassis 4 Tray sliding mechanism 5 Pickup part 6 Turntable 7 Locking mechanism 8 Lock mechanism 10 Chassis 11 Front bezel 12 Switch button 14 Guide rail pressing member 15, 16 Guide rail mechanism 17 Movable Side rail 18 Fixed side rail 19 Slide rail 20 Pinion 21 Drive unit 22 Base 23 Pickup drive unit 24 Pickup drive motor 26 Lead screw 27 Guide shaft 30 Locking hole 31 First locking member 33 Second locking member 35 Roller 36 Roller Support Member 38 Locking Roller 39 Lock Lever 42 Solenoid 48 Ejection Press Member 51 Circuit Board 52 Flexible Cable

Claims (3)

[Claims] 1. A tray which is moved by manual operation to a disc mounting position inside the casing or a disc exchange position pulled out of the casing, a turntable provided on the tray for rotating a disc as a recording medium, and the tray. A pickup provided for detecting information recorded on the disc and one of the tray or the casing, and when the tray moves to the disc exchange position, the other of the tray and the casing And a locking member that locks the tray by engaging with the disk device. 2. The locking member is supported by an elastic member provided on either the tray or the housing, and the tray or the housing is placed on the other side in the course of movement of the tray. The disk device according to claim 1, wherein the disk device is pressed in one direction. 3. A tray which is manually moved to a disc mounting position in the housing or a disc exchange position pulled out of the housing, a turntable provided on the tray for rotating a disc as a recording medium, and the tray. A pickup provided for detecting information recorded on the disc and a tray provided on the tray, and when the tray moves to a disc exchange position, engages with the housing to regulate movement of the tray in one direction. And a first locking member that locks the tray in such a manner that the tray is engaged with the tray when the tray moves to the disc replacement position, and the movement of the tray in the other direction is restricted. A second locking member for locking the tray so as to: