JP3591370B2 - Optical disk drive - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a wiper member is acted on a flexible substrate that electrically connects the disk tray side and the device housing side when the disk tray is moved forward and backward with respect to the device housing, so that the flexible substrate is prevented from being violated or jammed. The invention relates to an optical disk device that has been used.
[0002]
[Prior art]
2. Description of the Related Art An optical disk device for reproducing or recording a disk state recording medium of an optical disk such as a CD-ROM, a CD-R / RW or a DVD-ROM or a DVD-RAM needs to have a high space efficiency in consideration of being incorporated into a portable personal computer or the like. Small and thin types have been developed. FIG. 4 is a perspective view showing an example of a conventional optical disk device when viewed from the bottom side. The optical disk device 1 shown in FIG. 1 has a flat box-shaped device housing 2 having an open front surface, and a disk tray 3 incorporated in the device housing 2 so as to be capable of moving forward and backward. The guide is provided between a disk mounting position and a disk drive position. A push button 5 for manually unlocking the disk tray 3 locked at the disk drive position is provided on the front surface of the disk tray 3. Further, a control circuit board 6 is provided in the apparatus housing 2, and a flexible board 7 connecting the control circuit board 6 and the disk tray 3 has a slack margin corresponding to a draw-out distance (retreat distance) of the disk tray 3. It is folded so that the parts are double overlapped.
[0003]
When the push button 5 on the front of the disc tray 3 is pressed to play the optical disc 4, the lock on the disc tray 3 is released, and the front edge of the disc tray 3 projects slightly forward of the device housing 2. Thus, the disc tray 3 can be pulled out by sandwiching the protruding portion between the thumb and the index finger and pulling the disc tray 3 forward. As shown in FIG. 5, when the disk tray 3 is pulled out to the most protruding position (disk mounting position), a space for mounting the optical disk 4 is opened above the disk tray 3. FIG. 1 is a perspective view of the disk tray 3 as viewed from the bottom side, and thus includes a disk clamper for clamping the optical disk 4, an optical pickup that scans a signal recording surface of the optical disk 4 to read a recording signal, or an optical disk 4. Although a disk motor or the like for rotating the disk drive is not shown, all of these main components are integrated into the disk tray 3 in order to reduce the size and thickness of the apparatus. For this reason, a power supply line and a control signal line for a disk motor and an optical pickup or a read signal read by the optical pickup from the optical disk 4 are transferred to the flexible substrate 7 connecting the control circuit substrate 6 and the disk tray 3. A signal line and the like are provided, and are drawn out of the apparatus housing 2 while being extended in accordance with the retreat operation of the disk tray 3.
[0004]
The optical disk 4 is mounted on the disk tray 3 with the center hole engaged and latched with the disk clamper. Thereafter, when the disk tray 3 is pushed into the inside of the apparatus housing 2 while pushing the front edge of the disk tray 3 with a fingertip, the optical disk 4 reaches the disk drive position in the apparatus housing 2. In this example, rail guides 8 are formed on the left and right inner side surfaces of the apparatus housing 2 to convey and guide the optical disk 4 from the disk mounting position to the disk driving position in the apparatus housing 2. The guide rail 9 is guided so that both side edges of the disc tray 3 are engaged and guided. The guide rail 9 itself also moves in and out of the apparatus housing 2 in conjunction with the disk tray 3, and its moving distance is set to about half the transport distance of the disk tray 3.
[0005]
[Problems to be solved by the invention]
The conventional optical disk device 1 pulls out the disk tray 3 from the disk drive position to the disk mounting position, clamps the optical disk 4 on the disk tray 3 and pushes the disk from the disk mounting position to the disk drive position. This is a configuration in which the disk tray 3 is folded and folded and accommodated in the apparatus housing 2 in accordance with the approach operation of the tray 3, so that when the disk tray 3 is pulled out of the apparatus housing 2, for example, from the inner wall of the ceiling of the apparatus housing 2. In some cases, the received frictional force was disturbed, and the flexible substrate 7 was slightly loosened outside the device housing 2 as shown in FIG. However, since the state of the flexible substrate 7 cannot be seen from above the disk tray 3, if the disk tray 3 is slightly violently pushed in despite the looseness of the flexible substrate 7, the flexible substrate 7 As shown in FIG. 7, the inside of the device 2 may not bend properly and may be caught in the opening of the device housing 2 to form a slack on the near side, and may protrude outside the opening. In such a case, it is physically impossible to move the disk tray 3 to the regular disk drive position, and most users do not notice such a problem, so that the disk tray 3 is forcibly pulled while the flexible substrate 7 is caught. There is a problem that the flexible substrate 7 may be damaged due to an attempt to be accommodated.
[0006]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to prevent a flexible substrate from being pinched when a disk tray enters a device housing, and to assure a safe and reliable loading operation.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a box-shaped device housing having a disk drive space having an open front surface, a control circuit board disposed in the disk drive space, and the device through the opening. is entered exit rotatably supported relative to housing a disk tray for conveying the optical disk between a disk loading position and the disc drive position, by bending the song is telescopically accommodated in the device housing, wherein said disc tray A flexible board for connecting to a control circuit board, and a disc tray provided so as to be displaceable, and when the disc tray is withdrawn from the apparatus housing, the disc tray is displaced with respect to the tray in a direction opposite to the moving direction of the tray in conjunction with the withdrawal operation. And a member for pressing the flexible substrate together with the displacement to prevent the flexible substrate from being loosened .
[0008]
Further, in the present invention, the member for pressing the flexible substrate to prevent loosening is rotated in the direction opposite to the tray moving direction with respect to the tray in conjunction with the operation of entering and exiting the disk tray from the apparatus housing. It is a wiper member having an arm.
Further, the present invention, the presses the flexible board is disposed in the path of the member for preventing loosening, mechanical members for preventing slack by pressing the flexible substrate suit proceeds entering and leaving operation of the disc tray It is characterized by having a guide member for guiding the target.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing one embodiment of the optical disk device of the present invention viewed from the bottom side, FIG. 2 is a sectional view of the wiper member shown in FIG. 1, and FIG. It is a bottom view for explaining operation.
[0010]
In the optical disk device 11 shown in FIG. 1, a wiper member 12 for evenly preventing the bottom surface of the flexible substrate 7 from protruding is provided on the disk tray 3 and a guide member 13 is arranged on the path of the wiper member 12. The wiper member 12 is mechanically guided in accordance with the approaching and retreating operation of the disc tray 3. The wiper member 12 shown in the present embodiment is formed by integrally forming the short arm portion 12a and the long arm portion 12b at an angle of about 120 degrees with each other, and supports a connection portion between the short arm portion 12a and the long arm portion 12b. It is rotatably supported on a shaft 14 and assembled to the disc tray 3. As shown in FIG. 2, the support shaft 14 is integrally protruded from a central portion of a boss 15 planted on the lower surface of the bottom surface of the disk tray 3. A torsion spring 16 fitted around the boss 15 urges the wiper member 12 counterclockwise in FIG. Further, the guide member 13 shown in the present embodiment is disposed along the inner side wall of the device housing 2 and is a curved guide that guides the tip of the short arm portion 12a of the wiper member 12 inward along the arc surface. It has a surface 13a.
[0011]
The wiper member 12 is displaced to a position where the long arm portion 12b obliquely intersects the flexible substrate 7 in conjunction with the retreating operation when the disk tray 3 exits the apparatus housing 2, and the surface of the flexible substrate 7 is displaced with this displacement. It evenly acts to prevent loosening. Further, when the disk tray 3 enters the apparatus housing 2, the long arm portion 12 b is displaced to a position orthogonal to the flexible substrate 7 in conjunction with the entering operation, and the accommodation of the flexible substrate 7 in the disk drive space is performed. It works to facilitate.
[0012]
More specifically, when the disc tray 3 leaves the apparatus housing 2, the tip of the short arm portion 12 a of the wiper member 12 is guided downward by the curved guide surface 13 a of the guide member 13, and the wiper member 12 is biased by the torsion spring 16. Rotates counterclockwise in FIG. As a result, the long arm portion 12b which has been at the position shown by the dotted line in FIG. 3 is rotated and displaced so as to level the lower surface of the flexible substrate 7, and the loosening of the flexible substrate 7 is prevented. Thus, the flexible substrate 7 extends toward the disk mounting position together with the disk tray 3 while the lower surface is leveled by the long arm portion 12b.
[0013]
After the optical disk 4 is mounted at the disk mounting position, the disk tray 3 is pushed toward the disk drive position, and when the disk tray 3 enters the apparatus housing 2 at this time, the short arm portion 12a of the wiper member 12 is The tip is guided upward by the curved guide surface 13 a of the guide member 13. That is, the wiper member 12 rotates clockwise in FIG. 3 against the urging force of the torsion spring 16. As a result, the long arm portion 12b which has been at the position shown by the solid line in FIG. Thus, the flexible substrate 7 is fed into the apparatus housing 2 with the long arm portion 12b from below, and is folded and stored together with the disk tray 3 at the disk drive position.
[0014]
As described above, according to the optical disk device 11, when the disk tray 3 retreats from the device housing 2, the wiper member 12 can press the flexible substrate 7 to prevent the flexible substrate 7 from being loosened. When the disk tray 3 is moved into the drive position, for example, unlike the conventional optical disk device 1, the flexible substrate 7 is not turned up and does not protrude from the front opening of the device housing 2. Therefore, the disc tray 3 cannot be completely accommodated in the apparatus housing, or the flexible board 7 is damaged by trying to accommodate the disc tray 3 without noticing that the flexible board 7 is protruding. In addition, smooth guidance of the disk tray 3 to the disk drive position and protection of the flexible substrate 7 can be achieved.
[0015]
In addition, since the guide member 13 is provided on the path of the wiper member 12 and the wiper member 12 is mechanically guided in accordance with the approach and retreat operations of the disk tray 3, a special mechanism for only driving the wiper member 12 is provided. No driving means is required at all, and the guide member 13 mechanically guides the wiper member 12 which is displaced in accordance with the approach and retreat operations of the disk tray 3 in accordance with the same displacement pattern, so that the flexible substrate 7 can be safely and reliably moved. Can be guided into the apparatus housing 2.
[0016]
【The invention's effect】
As described above, according to the present invention, the wiper member displaceably provided on the disc tray is linked to the retreating operation when the disc tray leaves the device housing, and connects the flexible board connecting the disc tray to the control circuit board. When the disk tray is withdrawn from the apparatus housing, the wiper member can press the flexible substrate to prevent slack, thereby preventing the disk tray from loosening from the disk mounting position to the disk drive position. When entering the disk, the flexible substrate does not turn up and does not protrude from the front opening of the device housing as in the conventional optical disk device, and therefore the disk tray cannot be completely accommodated in the device housing. Forcefully or without notice that the flexible board is sticking out. It never such will damage the flexible substrate trying accommodate, an excellent effect such as can be protected smooth guiding the flexible board to the disk drive position of the disk tray.
[0017]
Further, according to the present invention, since the guide member is disposed on the path of the wiper member, and the wiper member is mechanically guided in accordance with the approach and retreat operation of the disc tray, a special purpose only for driving the wiper member is provided. No driving means is required, and the guide member repeatedly and mechanically guides the wiper member, which is displaced in accordance with the disk tray's approaching and retreating operation, according to the same displacement pattern, so that the flexible substrate can be safely and securely inserted into the device housing. There are effects such as being able to be guided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of an optical disk device of the present invention as viewed from a bottom surface side.
FIG. 2 is a sectional view of the wiper member shown in FIG.
FIG. 3 is a bottom view for explaining the operation of the wiper member shown in FIG. 1;
FIG. 4 is a perspective view showing an example of a conventional optical disk device viewed from a bottom surface side.
5 is a perspective view showing the optical disk device shown in FIG. 4 in a state where a disk tray is pulled out.
FIG. 6 is a side view showing a state of the optical disc apparatus shown in FIG. 4 when the disc tray is withdrawn.
FIG. 7 is a side view showing a state of the optical disk device shown in FIG. 4 when the disk tray enters.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Optical disk device 2 Device housing 3 Disk tray 4 Optical disk 5 Push button 6 Control circuit board 7 Flexible substrate 8 Rail guide 9 Guide rail 11 Optical disk device 12 Wiper member 12a Short arm portion 12b Long arm portion 13 Guide member 13a Curved guide surface 14 Shaft 15 Boss part 16 Torsion spring

Claims (3)

A box-shaped device housing having a disk drive space having an open front surface and a control circuit board disposed in the disk drive space; and an optical disk supported so as to be able to enter and exit the device housing via the opening. and a disk tray for conveying to and from the disk loading position and the disc drive position, said device being housed telescopically by bending tracks within the housing, and the flexible board that connects the control circuit board and the disc tray, The disc tray is provided so as to be displaceable, and when the disc tray is withdrawn from the apparatus housing, the disc tray is displaced in the opposite direction to the tray movement direction with respect to the tray in conjunction with the withdrawal operation, and presses the flexible substrate together with the displacement. An optical disk device comprising: a member for preventing slack . A member that presses the flexible substrate to prevent loosening is provided with a wiper member having an arm that rotates in a direction opposite to a tray moving direction with respect to the tray in conjunction with an operation of moving the disk tray into and out of the device housing. The optical disk device according to claim 1, wherein: Wherein by pressing the flexible substrate is disposed in the path of the member for preventing loosening, guide member for mechanically guiding a member for preventing loosening by pressing the flexible substrate suit proceeds entering and leaving operation of the disc tray The optical disk device according to claim 1, further comprising:

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