JPH0441492Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a recording/reproducing device, and is particularly applicable to a disk drive device that writes or reads signals using a disk constituting a storage medium. The present invention relates to a suitable recording/reproducing device.

Background Art and its Problems For example, floppy disks and optical disks have come to be used as external storage devices for computers. When writing or reading data using such a disk, the disk is held and rotated by a chuck of a drive device while the head is moved in the radial direction of the disk to perform writing or reading. Become. For example, in the case of an optical disc, a sliding table is used, the table is pulled out and the disc is placed on the sliding table, and the disc is moved together with the sliding table to the chuck position and rotated. There is.

Therefore, with such a chuck device, when the disk is moved to the chuck position by the slide table, it is necessary to lock it at this position. Therefore, in such cases, if a push-pull type locking device is used, all that is required to pull out the slide table is to push it in lightly, which eliminates the need for a means to release the lock. Benefits arise and the structure becomes simpler. However, when such a push-pull type locking device is used, if the table is accidentally pushed while writing or reading from the disk, the lock will be released and the disk will fly out along with the table. There is a possibility that correct writing or reading will not be performed.

〓Purpose of the invention〓 The present invention was made in view of these problems, and is a record that prevents the slide table from accidentally flying out in the direction of the drawer, thereby ensuring correct operation. The purpose is to provide a playback device.

〓Summary of the invention〓 The present invention is a slide on which a disk is placed and is slidable between a position where it is stored through an opening provided in the outer casing and a position where it is pulled out from the opening. A lock lever that locks the slide table at the storage position by a first pressing operation in the storage direction of the slide table and releases the lock by a second pressing operation in the storage direction of the slide table. a spring configured to press and bias the slide table in the pull-out direction and to slide the slide table from the storage position in the pull-out direction when the lock lever is unlocked by the second pressing operation; an operating lever that is rotatably provided near the opening and that engages and disengages the chucking means that engages with the disk at the storage position; and a rotary operation of the operating lever. and a locking lever that regulates the storage position of the slide table in conjunction with the slide table, and when the operating lever is rotated to engage the chucking means with the disk, the pull-out direction of the slide table is controlled by the spring. The operating lever directly prevents the slide table from sliding in the storage direction, and the limiter prevents the slide table from sliding in the storing direction, thereby preventing the slide table from being pulled out unexpectedly. This is to prevent the recording or reproducing operation from being inhibited.

〓Example〓 The present invention will be explained below with reference to an illustrated embodiment.

1 to 3 show an optical disk drive device constituting a recording and reproducing device according to an embodiment of the present invention, and this device has a rectangular parallelepiped-shaped cabinet 1 as shown in FIG. It is equipped with A slide table 2 is slidably disposed within the cabinet 1. As shown in FIG. 3, this slide table 2 is slidably supported within the cabinet 1 by a pair of left and right guide rods 3. That is, the slider 4 through which the left guide rod 3 passes is fixed to the bottom plate 6 of the slide table 2, and
The guide rod 3 on the right side is clamped by a pair of upper and lower rollers 5 attached to the bent piece of the bottom plate 6, so that the slide table 2 can be rotated horizontally in FIGS. 1 and 2. It is supported so that it can slide in the direction of.

An opening 7 is formed in the bottom plate 6 at approximately the center thereof, and a chuck 8 is provided so as to face this opening 7. The chuck 8 is fixed to the output shaft of a motor 9 and is driven by the motor 9. Further, a receiving plate 10 is arranged inside the slide table 2. This receiving plate 10 is equipped with four pads 11,
These pads 11 are adapted to receive an optical disk, which will be described later. In addition, the receiving plate 10
As shown in FIG. 2, a leaf spring 12 is arranged on the lower surface of the leaf spring 12.
The receiving plate 10 is urged upward by the above.

A pressing ring 13 is disposed above the chuck 8, and this pressing ring 13 is supported by a mounting plate 14. The mounting plate 14 is provided with pressing pieces 15 on both its left and right sides, and is adapted to press down the receiving plate 10. The mounting plate 14 has a pair of left and right chuck arms 16.
Furthermore, the chuck arm 16 is rotatably supported by a stay 17 via a pin 18. Limiters 19 are attached to the left and right chuck arms 16 by screws, respectively, and these limiters 19 come into contact with the bridge member 20 to regulate the position of the slide table 2.

Next, the locking mechanism for locking the slide table 2 in the stored position or the pushed-in position will be explained.
are integrally connected, and a lock pin 22 is implanted at the tip of this protrusion 21. The lock pin 22 is adapted to be engaged with a lock lever 25 rotatably supported by a support plate 23 via a pin 24. The lock lever 25 is biased by a spring 26 to rotate counterclockwise about the pin 24 in FIG.

The tip of the lock lever 25 is formed with a lock portion 27 made of a notch.
An inclined piece 28 is integrally formed so as to face the lock portion 27, and a push-push type lock device is constituted by the inclined piece 28. The support plate 23 supporting the lock lever 25 is attached to a base plate 29,
A leaf spring 30 is attached to the base plate 29, and this spring 30 biases the slide table 2 through the bridge member 20 so as to push it out.

Next, a mechanism for rotating the chuck arm 16 will be explained. This mechanism includes an operating lever 31, which is fixed to the tip of a crankshaft 32. A crank lever 33 is fixed to this crankshaft 32, and the tip of the crank lever 33 is connected to a pin 3.
It is connected to the actuation lever 35 via 4. The operating lever 35 is rotatably supported by a stay 36 via a pin 37, and the tip of the operating lever 35 is connected to the upright piece 39 of the mounting plate 14 via a pin 38. It's summery.

Next, the operation of this disk drive device having the above configuration will be explained. The optical disk 42 is placed on this disk drive device and the fifth
When reading out as shown in the figure, the slide table 2 is read through the opening 44 of the front panel 40.
is pulled out to the right in FIGS. 1 and 2, and the optical disk 42 is placed on the receiving plate 10 of the slide table 2. The optical disk 42 will be received by the pad 11 of the receiving plate 10. Once the optical disk 42 has been placed on the slide table 2 in this way, the slide table 2 is then reversely moved to the left in FIGS. 1 and 2. Push it into the position shown. As mentioned above, the slide table 2 is
It is slid by a pair of guide rods 3 and is moved to a chuck position where the center of the disk 42 placed thereon coincides with the center of the chuck 8.

When the slide table 2 is pushed in in this way, the lock pin 22 implanted in the protrusion 21 of the bridge member 20 attached to the bottom plate 6 of the slide table 2 is inserted into the support plate 23 via the pin 24. The lock portion 27 of the lock lever 25, which is rotatably supported, engages with the lock portion 27 as shown in FIG. Therefore, the slide table 2 is connected to the leaf spring 3 via the bridge member 20.
This slide table 2 will not come out even if it is pressed by 0.

In this state, as shown in FIG. 4, the operating lever 31 is rotated clockwise together with the crankshaft 32. Note that the maximum angle of rotation of the operating lever 31 in the same direction is restricted by the pin 43. Since a crank lever 33 is fixed to this lever 31 via a crankshaft 32, the crank lever 33 also rotates in the same direction. Then, the pin 34 at the tip of the crank lever 33 pushes the operating lever 35, and the operating lever 35 rotates counterclockwise about the pin 37, as shown in FIG. The lever 35 and the mounting plate 14 having the upright piece 39 connected via the pin 38 are then pushed downward.

Since the mounting plate 14 is attached to the tip of the chuck arm 16 as shown in FIG.
By operating the operating lever 31, the chuck arm 16 rotates clockwise in FIG. moves downward and chucks the disk 42 placed on the slide table 2.
Press it to perform the chucking operation. At the same time, the pressing piece 15 of the mounting plate 14 moves the receiving plate 10 downward, separating the receiving plate 10 from the optical disk 42. Therefore, as shown in FIG. 5, the optical disk 42 is connected to the chuck 8, and since a power switch (not shown) is turned on by rotating the operating lever 31, the optical disc 42 is turned on by the motor 9. The disk 42 will now be driven. The information written on the bottom surface of the optical disk 42 is then read by an optical reading head (not shown).

When the predetermined reading operation is completed, the operating lever 31 is rotated in the opposite direction to move it to the position shown in FIGS. 2 and 3. Then, in conjunction with this operation, the chuck arm 16 is raised via the crank lever 33 and the operating lever 35, so that the pressure by the pressing piece 15 on the receiving plate 10 is released, and the receiving plate 10 is moved by the leaf spring 12. Rise. Therefore, the optical disk 42 is also pushed up by the receiving plate 10, and the engagement with the chuck 8 is released.

In this state, the lock pin 2 on the bridge member 20 connected to the slide table 2
2 is in a locked state by a lock lever 25 as shown in FIG. 6B. Note that FIG. 6A shows the operation of locking the lock pin 22 by the lock lever 25. Then, push the slide table 2 a little in the pushing direction through the opening 44. Then, the lock pin 22 installed in the bridge member 20 connected to the slide table 2 is moved under the inclined piece 28 of the lock lever 25 by the action of the spring 26, as shown in FIG. 6C. Then, the lock pin 22 pushes up the lock lever 25 due to the pressing force of the leaf spring 30, and the sixth lock lever 25 is pushed up.
As shown in FIG. D, the lock pin 22 and the lock lever 25 are disengaged from each other by performing a swinging motion. Therefore, the slide table 2 is pushed out by the leaf spring 30, and the optical disk 42 can be taken out from the table 2.

Furthermore, according to the disk drive device constituting the recording and reproducing apparatus according to this embodiment, when the operation lever 31 is rotated as shown in FIGS. 4 and 5 to perform the check operation, the fifth
As is clear from the figure, this operating lever 31 is located on the front side of the slide table 2, and this slide table 2 is located at the opening 44 of the front panel 40.
It will be displaced to a position that prevents it from moving to the right through. Therefore, when the chuck operation is being performed, even if the slide table 2 is accidentally pushed in and the lock lever 25 constituting the push-type locking device is released, this operation lever 31 will not allow the slide table 2 to fly. Since reading is directly prevented, the reading operation by the optical disk 42 is not inhibited unexpectedly.

Furthermore, the chuck arm 16 for performing the chuck operation is equipped with a limiter 1 as shown in FIG.
9 is fixed with screws so that it can be installed. As is clear from FIG. 2, this limiter 21 does not interfere with the bridge member 20 connected to the bottom plate 6 of the slide table 2 when no check operation is performed, but when a check operation is performed, In some cases, as shown in FIG. 5, it comes into contact with the tip of the bridge member 19.

Therefore, when the chuck operation is performed, even if an attempt is made to push the slide table 2 further, the push-in action will be blocked by the limiter 19. Since the slide table 2 cannot be further pushed in by pressing the push button, the engagement between the lock lever 25 and the lock pin 22 that constitute the push-pull type locking mechanism cannot be released, and the limiter 19 further increases safety. becomes possible. Therefore, even with this,
It is possible to prevent the read operation from being interrupted in the middle.

The bridge member 20, on which the lock pin 22 is installed, is fixed to the bottom plate 6 of the slide table 2 with screws 41, as shown in FIG. Here, the screw insertion hole of the bridge member 20 is considerably larger than the diameter of the screw, thereby making it possible to adjust the movement of the bridge member 20 with respect to the slide table 2, particularly in the sliding direction. Therefore, the stopping position of the slide table 2 when the lock pin 22 is engaged with the lock lever 25 can be freely adjusted, preventing interference between the slide table 2 and the disk 42, and driving the disk 42 at the correct position. becomes possible.

〓Effect of the invention〓 As described above, in the present invention, when the operating lever is rotated to engage the chucking means with the disk, the operating lever directly prevents the slide table from sliding in the pull-out direction due to the spring. In addition, the limiter prevents the slide table from sliding in the storage direction. Therefore, when the chucking means is engaged with the disk by rotating the operating lever, the operating lever directly prevents the slide table from sliding in the pull-out direction. Further, the slide table is prevented from sliding in the storage direction by the limiter. Therefore, the slide table cannot be moved in either the drawer direction or the storage direction, and the locked state by the lock lever is maintained, thereby preventing the recording or playback operation from being unexpectedly interrupted. becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a disk drive device constituting a recording/reproducing device according to an embodiment of the present invention;
2 is a sectional view taken along the line ~ in FIG. 1, FIG. 3 is a sectional view taken along the ~ line in FIG. 1, FIG. 4 is a sectional view similar to FIG. The figure is a sectional view similar to Figure 2 in a state in which the operating lever is rotated to perform a chucking operation, and Figure 6 is a plan view of the main part showing the operation of the locking mechanism of the slide table by the lock lever in sequence. It is. In addition, in the symbols used in the drawings, 2...Slide table, 22...Lock pin, 25...Lock lever, 26...Spring, 27...Lock portion, 2
8... Inclined piece, 30... Leaf spring, 31
...Operation lever, 32...Crankshaft, 40...
Front panel, 42... Optical disk, 44...
It is an opening.

Claims (1)

[Claims for Utility Model Registration] A slide table on which a disk is placed and is slidable between a position where it is stored through an opening provided in an outer casing and a position where it is pulled out from the opening. 2, a lock lever that locks the slide table at the storage position by a first pressing operation in the storage direction of the slide table, and releases the lock by a second pressing operation of the slide table in the storage direction; 25, and a spring 30 that presses and urges the slide table in the pull-out direction and slides the slide table from the storage position in the pull-out direction when the lock lever is unlocked by the second pressing operation. an operating lever 31 that is rotatably provided near the opening and that engages and disengages the chucking means 8 that engages with the disc in the storage position, and the operating lever 31; a limiter 1 that regulates the storage position of the slide table in conjunction with the rotation operation of the slide table;
9, when the operating lever is rotated to engage the chucking means with the disk, the operating lever directly prevents the slide table from sliding in the pull-out direction due to the spring, and A recording/reproducing apparatus characterized in that the limiter prevents the slide table from sliding in the storing direction.