JP3829154B2 - Information disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention uses a cartridge containing an information recording and / or disks for reproduction in a state mounted on the disc tray, so as to elicit a selected disk from the cartridge, at least one of recording or reproducing with respect to the disc relates to the configuration of the information disc equipment for performing, in particular it relates to a structure for drawing out the disk tray from the cartridge.
[0002]
[Prior art]
Conventionally, in a recording / reproducing apparatus that performs reproduction and / or recording on a disc such as a CD-ROM, CD-R, CD-RW, etc., one cartridge with a plurality of discs mounted on individual disc trays. This cartridge is installed in the recording / reproducing apparatus, one of the plurality of disks to be used is selected, and the disk tray on which the selected disk is mounted is placed in the recording / reproducing apparatus. There is a configuration that moves to a position within a recording / reproducing operation range by an installed pickup.
[0003]
For example, in Japanese Patent Publication No. 2-56745, a plurality of disk trays on which disks are mounted are rotatably provided in a cartridge (magazine), and a disk tray on which a selected disk is mounted is recorded / reproduced. The structure of a disc player is described in which it is rotated to a part within a recording / reproducing operation range by a pickup installed inside.
[0004]
In the disc player described in Japanese Examined Patent Publication No. 2-56745, a disc tray holding mechanism is provided to prevent the disc tray from inadvertently protruding outside the cartridge when the operator handles the cartridge. .
[0005]
As described above, by using the cartridge in which a plurality of disks are mounted in individual disk trays, the trouble of mounting and replacing the disks one by one in the recording / reproducing apparatus can be saved.
[0006]
[Problems to be solved by the invention]
However, the cartridge described in Japanese Examined Patent Publication No. 2-56745 has a configuration in which the disc tray is rotated by the rotation support shaft, and the disc tray is linearly moved with respect to the cartridge. This requires a large space for moving the disc tray.
[0007]
In addition, since the disc tray is supported by the cartridge by the rotation support shaft, the disc tray does not come off, and further, since the disc tray holding mechanism is provided, the disc tray moves carelessly. Therefore, it is possible to prevent the disk from falling from the disk tray and being damaged. On the other hand, the disk tray can move only within a rotatable range, and there is a problem in freedom of movement.
[0008]
An object of the present invention is to solve the above-mentioned conventional problems and to have a structure in which the disk tray is slidably moved in the apparatus main body so that the disk tray is completely extracted from the cartridge, and the sliding movement is simple. to provide an information disk equipment was to be carried out smoothly in the configuration.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention uses a cartridge in which a disk is mounted on a disk tray, and a pickup for performing at least one of recording and reproduction with respect to the disk; In an information disc apparatus comprising a transport mechanism for pulling out the entire disc tray from the cartridge into the main body of the device for carrying out at least one of recording and reproduction, and transporting it to a portion where the pickup is installed. A mounting surface for mounting the disk is provided in the central portion, and extended arm portions for slidingly moving the transport mechanism portion are provided on both sides of the mounting surface. the configuration that having a engaging claw portion for engaging portion engages provided in the moving member constituting the transport mechanism, the engagement between the engaging portion The engaging portion of the claw portion, when the disk tray pull-conveyed by the moving member, which conveying force by the moving member is shaped to always act outwardly of the disc tray, this configuration disc Even when the tray is completely extracted from the cartridge, one extending arm portion is pulled out by the moving member, and both the extending arm portions of the disk tray slide and move on the transport mechanism portion. In one extended arm portion to which the conveying force by the moving member is applied, the conveying force is not divided into the inner side of the disc tray, so that the component force due to the conveying force is applied to the other extending arm portion and the friction resistance It becomes possible to prevent the occurrence of problems such as the occurrence of catching in the middle of conveyance.
[0010]
Further, according to the present invention, an inclination is formed at an engagement portion between the engagement portion and the engagement claw portion. With this configuration, the conveyance force of the moving member is reduced by the simple configuration. The shape acting in the outward direction can be used.
[0011]
The present invention, prior to SL when the disk tray pull-conveyed by the moving member, an elastic member for applying a biasing force for pressing the transport mechanism portion of the outer direction extension arm portion of said one through the moving member With this configuration, when the disc tray is completely extracted from the cartridge, one of the extending arm portions is pulled out by the moving member, and both the extending arm portions of the disc tray slide on the transport mechanism portion. Even if it has a structure that moves, the transfer force is not divided into the inner side of the disc tray at one extension arm to which the transfer force is applied by the moving member. The frictional force increases due to the force component, which prevents the occurrence of problems such as catching in the middle of conveyance, and one extension arm is pressed against the conveyance mechanism. Since the motion is restricted, it is possible to suppress the generation of vibration in the disc tray.
[0012]
Further, the present invention can be applied to a structure in which the extension length of the other extension arm portion is short with respect to the extension arm portion provided with the engagement claw portion, so that Since the force that rotates the disc tray in the direction of the short extending arm portion is easily generated by the inward component force, the above-described operational effect is conspicuous.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is an exploded perspective view of an information disk recording / reproducing apparatus for explaining an embodiment of the present invention. 1 is a disk tray on which a disk 2 is placed, 3 is open on one side, and a plurality of This is a box-shaped cartridge in which the disc tray 1 is detachably mounted. Then, the front cover 5 having the insertion opening 4 through which the cartridge 3 is inserted and removed, the top cover 6, the under cover 7, the side frames 8, 9 and the rear frame 10 constitute an exterior body of the apparatus main body.
[0015]
Inside the apparatus main body are a printed circuit board 11 on which control and drive system circuits and electrical components are mounted, a pickup 12 for optically recording / reproducing data on the disk 2, and a spindle for rotationally driving the disk 2. A pickup module 14 having a motor 13 and moved up and down by a drive mechanism, a pickup module base 15 on which the pickup module 14 is installed, and a clamp member for pressing the disk 2 and loading it onto the turntable of the spindle motor 13 A cartridge base 17a, a cartridge top base 17b, and the like are installed in a clamp base assembly 16 that can move up and down provided with 18 and a cartridge mounting portion 17 in which the cartridge 3 is loaded. A pickup assembly 19 is configured by assembling the pickup module 14, the pickup module base 15, and the clamp base assembly 16.
[0016]
FIG. 2 is an external perspective view of the cartridge 3, and FIG. 3 is a front view of the cartridge 3 on the opening side. In this example, 5 is provided on the inner wall facing the cartridge case 20 so that five disk trays 1 can be stored. As shown in FIG. 3, a stepped groove 21 is provided on each side of the inner wall of the cartridge case 20 so as to engage with a part of each disk tray 1 so that the stored disk tray 1 does not come out. Locking mechanisms 22 and 23 are provided.
[0017]
4 is a side view of the cartridge 3, and FIG. 5 is a bottom view of the cartridge 3. As shown in FIG. 4, a lock provided on the inner wall of the side frame 9 shown in FIG. A lock groove 26 that can be engaged with and disengaged from the pin 25 is provided, and a release button 27 that releases the engagement between the lock mechanisms 22 and 23 and the disc tray 1 is provided.
[0018]
On the bottom surface of the cartridge case 20, a groove 31 is formed in the cartridge base 17a. The groove 31 engages with a cartridge discharge urging portion 30 including an urging spring and an urging member provided on the cartridge base 17a shown in FIG. A plurality of (three are shown in FIG. 1) guide pins 32 are formed and guide grooves 33 are formed. A rear end portion of the guide groove 33 is provided so that a part of a first unlocking lever (detailed later) 34 in the lock mechanism 22 is exposed.
[0019]
Further, a projecting peripheral portion 36 is provided on the side opposite to the opening 35 side which is the side to be inserted into the apparatus main body in the cartridge case 20, and the cartridge 3 is inserted into the insertion port 4 in the front cover 5 in this projecting peripheral portion 36. In this state, an elastic sealing member 37 that elastically contacts the front cover 5 is provided, and as shown in FIG. 4, the periphery of the insertion port 4 is blocked from the outside so that dust and the like do not enter the apparatus main body from the outside.
[0020]
FIG. 6 is a plan view of the disc tray 1, and the disc tray 1 has a mounting surface 40 having a substantially semicircular shape on which the disc 2 is mounted, and the side of the mounting surface 40 having the cutout portion 40a is on the side. The cartridge case 20 is inserted into the cartridge case 20 so as to be on the opening 35 side. Extending arm portions 41 and 42 are provided on both sides of the cutout portion 40a of the disc tray 1, and in this example, one extending arm portion 41 is longer than the other extending arm portion 42 in terms of arrangement of the constituent members. ing. An engaging claw portion 43 is formed at the distal end portion of the long extending arm portion 41. In FIG. 6, the engaging claw portion 43 has an inclination that faces outward and the lower side 43 a is lowered outward.
[0021]
Elastic locking pieces 44 and 45 are formed on the outer sides of the extended arm portions 41 and 42 on the side opposite to the cutout portion 40a of the disc tray 1 by partially cutting them. Further, in the concave portions 46 and 47 in the vicinity of the elastic locking pieces 44 and 45, locking convex portions 48 and 49 that engage with and disengage from the locking mechanisms 22 and 23 shown in FIG. 3 are formed. The elastic locking pieces 44 and 45 are respectively provided with locking claws 44a and 45a at the outer front end portions and projecting portions 44b and 45b at the outer intermediate portion.
[0022]
FIG. 7 is a plan view with a part cut away to illustrate the internal mechanism of the cartridge 3. When the disc tray 1 is pulled out, the cartridge case 20 is elastically locked to the inner wall on the opening 35 side. Small protrusions 50 and 51 that engage with the locking claws 44a and 45a of the pieces 44 and 45 are provided. By doing so, the disc tray 1 is prevented from inadvertently falling out of the cartridge 3.
[0023]
At one inner corner of the cartridge case 20, there are provided five elastic locking plate members 52 made of leaf springs or the like constituting one lock mechanism 23 shown in FIG. It engages with the locking projection 48 of the tray 1. Further, at the other corner of the cartridge case 20, five claw levers 55 constituting the other lock mechanism 22 are provided so as to be arranged in the upper and lower directions, and are engaged with the locking projections 49 of each disc tray 1. The claw lever 55 is fixed to a substantially central portion of a shaft body 54 provided integrally with the release button 27. A fitting shaft 54 a is projected from the shaft body 54, and further receives a biasing force in the outward direction from the spring 56.
[0024]
The fitting shaft 54a is fitted into the recess 60a of the second unlocking lever 60 that is pivotally supported 57 at the center, and the second unlocking lever 60 is connected to the rear end portion of the guide groove 33. The exposed first unlocking lever 34 is fixed, and the second unlocking lever 60 and the first unlocking lever 34 rotate together.
[0025]
FIG. 8 is a perspective view showing a part of the back side of the clamp base assembly 16. The side arm 16 a of the clamp base assembly 16 has an extended arm in the disc tray 1 on which the disc selected for use is mounted. A conveying mechanism 65 for pulling the disc tray 1 from the cartridge 3 into the apparatus main body and a guide plate 66 for guiding the movement of the disc tray 1 are installed by engaging with the engaging claw portion 43 of the portion 41.
[0026]
FIG. 9 is a diagram showing a main part of the transport mechanism 65 for pulling in the disc tray 1, and various structures can be adopted as the transport mechanism 65. In the present example, a brief description will be given. As shown in FIG. 9, the pickup assembly 19 is provided with a drive force from a drive motor (not shown) via a transmission mechanism, and as shown in FIG. 9, between the back side (front cover 5 side) and the front side (rear frame 10 side). The moving member 67 is configured to reciprocally move, and the engaging piece 68 fixed to a part of the moving member 67 and engaged with the engaging claw portion 43.
[0027]
In FIG. 9, the engagement piece 68 faces the outside formed in the engagement claw portion 43 of the extended arm portion 41 in the disc tray 1 and matches the inclination in which the lower side 43 a is lowered outward. The tip is fixed to the moving member 67 with an inclination angle that rises. Due to such an inclination setting, when the disc tray is retracted, the driving force can be directed to the outside of the disc tray 1 (in the direction of arrow A) with respect to the extending arm portion 41, and the driving force applied to the inside can be suppressed. Therefore, it is possible to prevent the driving force from being transmitted from the long extending arm portion 41 to the short extending arm portion 42 side in the disc tray 1 and to increase the sliding resistance. The sliding on the 42 side is performed smoothly.
[0028]
Further, an elastic member (not shown) such as a spring for urging the disc tray 1 outward (in the direction of arrow A) is provided on the moving member 67 so that the disc tray 1 is placed on the guide plate 66 shown in FIG. If the pressure contact is made, the movement of the disc tray 1 is restricted and the occurrence of vibrations can be prevented. Thus, it is possible to prevent the disk tray 1 from vibrating due to the rotational vibration of the disk 2 or the wind pressure caused by the disk rotation.
[0029]
FIGS. 10A and 10B are explanatory views of disengagement between the elastic locking pieces 44 and 45 of the disc tray 1 and the cartridge 3 when retracted (the related structure on the side of one elastic locking piece 44 is shown in the figure). In this example, in order to prevent the disk tray 1 from being completely detached from the cartridge 3 and falling off even when the disk tray 1 is pulled out from the cartridge 3 when replacing the disk, etc. As shown in FIG. 7, the small protrusion 50 (51) of the cartridge case 20 and the locking claw 44a (45a) of the elastic locking piece 44 (45) of the disc tray 1 are prevented from engaging and coming out. ing. Therefore, when moving the disc tray 1 completely out of the cartridge 3 when moving the disc tray 1 to the installation site of the pickup 12 during recording / reproduction, the small protrusion 50 (51) and the elastic locking piece The engagement with 44 (45) is obstructed.
[0030]
Therefore, in this example, when the disc tray 1 is pulled in, the guide plate 66 that guides the disc tray 1 in the transport mechanism 65 comes into contact with the protruding portion 44b (45b) of the elastic locking piece 44 (45) and is elastically locked. An inclined portion 66a, which is a release member that acts to bend the piece 44 (45) inward, is provided, and in the process of retracting and moving the disc tray 1 shown in FIG. 10 (a), shown in FIG. 10 (b). As described above, the elastic locking piece 44 (45) is elastically deformed inward to release the engagement with the small protrusion 50 (51) of the cartridge 3, so that the disk tray 1 can be pulled into the apparatus main body without any trouble. I am doing so.
[0031]
In the cartridge 3 having the above-described configuration, when not in use, each disk tray 1 has one locking projection 48 engaged with the elastic locking plate material 52 of one locking mechanism 23 and the other locking projection 49 being the other. Are engaged with the claw lever 55 of the lock mechanism 22 and cannot be pulled out from the cartridge 3.
[0032]
When loading or replacing the disk 2 in the disk tray 1, when the release button 27 on the side of the cartridge 3 is pressed, the shaft body 54 moves into the apparatus body and the claw lever 55 is locked. It leaves | separates from the convex part 49. FIG. Therefore, if the disk tray 1 is pulled out from the opening 35 in the cartridge case 20 against the elastic locking force of the elastic locking plate 52, the entire disk tray 1 can be pulled out. At this time, the small protrusions 50 and 51 of the cartridge case 20 and the locking claws 44a and 45a of the elastic locking pieces 44 and 45 of the disk tray 1 are engaged with each other, so that the disk tray 1 is not further pulled out. The occurrence of problems such as inadvertent dropping of the disc tray 1 is prevented.
[0033]
At the time of recording / reproducing, when the cartridge 3 is inserted into the apparatus main body from the insertion port 4 of the front cover 5, the guide groove 33 on the bottom surface of the cartridge case 20 enters the guide pin 32 of the cartridge base 17 a in the apparatus main body. The cartridge 3 is inserted into the inner side of the apparatus main body. When the cartridge 3 is inserted to a predetermined position, the innermost guide pin 32 is brought into contact with the first unlocking lever 34 disposed at the innermost end portion of the guide groove 33 and pressed. To do. Then, as shown in FIG. 7, the first unlocking lever 34 is rotated counterclockwise, and the second unlocking lever 60 is also rotated counterclockwise. The rotation of the second unlocking lever 60 causes the shaft body 54 to be pushed down against the urging force of the spring 56 via the fitting shaft 54 a, and the claw lever 55 is moved from the locking projection 49 of the disc tray 1. Leave.
[0034]
In this way, when the cartridge 3 is inserted and set in a predetermined position of the apparatus main body, the operation lock with respect to the disk tray 1 is released, and the disk 2 used for recording and / or reproduction is selected. The disk tray 1 on which the disk 2 is placed is pulled out from the cartridge 3. In this example, each part is driven and controlled by a CPU (Central Processing Unit) mounted on the printed circuit board 11.
[0035]
That is, when the cartridge 3 is inserted and set in the apparatus main body during recording / reproduction, the pickup assembly 19 is used by the stepped guide mechanism 70 and the vertical drive mechanism provided on the side frame 8. Is moved to the height of the groove 21 of the cartridge case 20 in which the disc tray 1 having the above is accommodated. After the movement, the transport mechanism 65 of the clamp base assembly 16 is started, and the disk tray 1 is pulled out from the cartridge case 20 and moved toward the spindle motor 13 as shown in FIG. When the disk 2 of the disk tray 1 reaches the position on the turntable of the spindle motor 13 and facing the pickup 12, the clamp base assembly 16 loads the disk 2 onto the turntable of the spindle motor 13 by the clamp member 18. To do.
[0036]
After the loading is completed, the spindle motor 13 rotates and the disk 2 is driven to rotate, and the pickup 12 performs known optical recording / reproducing operations and processing.
[0037]
【The invention's effect】
As described above, according to the present invention, when the disc tray is completely extracted from the cartridge, one of the extending arm portions is pulled out by the moving member, and the both extending arm portions of the disc tray have the transport mechanism portion. Even if it has a structure that slides and moves, in one extension arm to which the conveyance force by the moving member is applied, the conveyance force is not divided into the inside of the disc tray, so the other extension arm In addition, the frictional force increases due to the addition of the component force due to the conveyance force, and it is possible to prevent problems such as catching during conveyance, and the disk tray can be pulled out by the conveyance mechanism and easily reached the specified position. It becomes possible to carry smoothly with a simple structure.
[0038]
Furthermore, since one extended arm can be pressed against the transport mechanism and the movement can be restricted, the occurrence of vibration in the disc tray can be suppressed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an information disc recording / reproducing apparatus for explaining an embodiment of the present invention. FIG. 2 is an external perspective view of a cartridge according to an embodiment of the present invention. FIG. 4 is a side view of the cartridge in the embodiment of the present invention. FIG. 5 is a bottom view of the cartridge in the embodiment of the present invention. FIG. 6 is a plan view of the disc tray in the embodiment of the present invention. FIG. 7 is a plan view with a part cut away for explaining the internal mechanism of the cartridge in the embodiment of the present invention. FIG. 8 is a perspective view showing a part on the back surface side of the clamp base assembly in the embodiment of the present invention. FIG. 9 is a diagram showing a main part of a transport mechanism for retracting a disk tray in an embodiment of the present invention. FIG. 10 is a disk tray at the time of retracting in an embodiment of the present invention. Illustration of disengagement of the elastic latching pieces and the cartridge EXPLANATION OF REFERENCE NUMERALS
DESCRIPTION OF SYMBOLS 1 Disc tray 2 Disc 3 Cartridge 20 Cartridge case 40 Mounting surface 40a Notch parts 41 and 42 Extension arm part 43 Engagement claw part 43a Lower side of engagement claw part 65 Conveying mechanism 67 Moving member 68 Engagement piece

Claims (4)

A cartridge containing a disc mounted on a disc tray is used, a pickup for performing at least one of recording and reproduction with respect to the disc, and the disc for performing at least one of recording and reproduction with respect to the disc In an information disc device comprising a transport mechanism for pulling out the entire tray from the cartridge into the apparatus main body and transporting the tray to a site where the pickup is installed,
The disk tray is provided with a mounting surface for mounting the disk at a central portion, and extended arm portions for slidingly moving the transport mechanism portion are provided on both sides of the mounting surface. the configuration that having a engaging claw portion for engaging portion engages provided in the moving member constituting the transport mechanism to the arm portion,
The engaging portion between the engaging portion and the engaging claw portion is shaped so that the conveying force by the moving member always acts in the outward direction of the disc tray when the moving member pulls and conveys the disc tray. An information disk device characterized by the above.   2. The information disk device according to claim 1, wherein an inclination is formed at an engagement portion between the engagement portion and the engagement claw portion. Time before Symbol said by the moving member of the disc tray pull-transport, and further comprising a resilient member for applying a biasing force for pressing the transport mechanism portion of the outer direction extension arm portion of said one through the moving member The information disk device according to claim 1 or 2 . The information disk device according to any one of claims 1 to 3, wherein an extension length of the other extension arm portion is shorter than an extension arm portion provided with the engagement claw portion.

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