JP3796603B2 - Information disk unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention uses a cartridge in which an information recording / reproducing disc is mounted on a disc tray and uses the cartridge to draw the selected disc from the cartridge, thereby recording / reproducing information on the disc. It relates disk equipment, particularly to the anti-creep configuration of the resilient locking portion of the disc tray.
[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 Examined Patent Publication No. 2-56745, a plurality of disk trays on which disks are mounted are rotatably provided in a cartridge (magazine), and the disk tray on which a selected disk is mounted is recorded / reproduced. A configuration of a disc player is described in which it is rotated to a part within a recording / reproducing operation range by a pickup installed in the apparatus.
[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]
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]
As technical means for solving such problems, the applicant has previously proposed an information disk recording / reproducing apparatus described in Japanese Patent Application No. 11-232441. That is, an elastic locking portion is provided in a part of the disk tray, a locking portion that is detachably engaged with the elastic locking portion in a state in which the disk tray is pulled out from the cartridge, and a part of the transport mechanism is further provided. In addition, the disc tray is removed from the cartridge by providing a release member that elastically deforms the disc tray's elastic locking portion while the disc tray is pulled out of the cartridge and releases the engagement with the cartridge's locking portion. When the disk tray is pulled out, the elastic locking portion is locked to the locking portion, thereby preventing the disc tray. Further, when the disc tray is moved to the transport mechanism, the locking state between the elastic locking portion and the locking portion is changed. It is to release.
[0009]
[Problems to be solved by the invention]
The present invention further improves the information disk recording / reproducing apparatus described in the above-mentioned Japanese Patent Application No. 11-232441, and prevents the elastic locking portion from being creeped. information disk which stop portion is allowed to reliably stops that the cartridge locking portion which engages detachably with said resilient locking portion in a state where the disc tray is drawn out from the cartridge without the influence of aging and environmental It is to provide the equipment.
[0010]
[Means for Solving the Problems]
To achieve the above object, the present invention is a cartridge is used with a built-in a state of mounting the disk on the disk tray, and a pickup for performing at least one of recording or reproducing to the disk, at least with respect to the disc drawer the entire disc tray for performing one of recording or reproducing in the apparatus main body from the cartridge, and a transport mechanism for transporting to the site where the pickup is installed, the elastic latching part of said disc tray The cartridge is provided with a locking portion that is detachably engaged with the elastic locking portion in a state in which the disk tray is pulled out of the cartridge, and the disk tray is provided in a part of the transport mechanism. The elastic locking portion of the disc tray is elastically deformed while being pulled out from In the information disc equipment having a release member for releasing the engagement between the engaging portion of the serial cartridge, in a state in which the disc tray is housed in the cartridge, such that the elastic locking portion is undeformed state It is characterized by comprising. With such a configuration, the elastic locking portion of the disc tray can be kept in a free state when the cartridge is mounted, so that no elastic stress is applied and a creep phenomenon does not occur. However, when the disc tray is pulled out from the cartridge again, the elastic locking portion can be reliably locked to the locking portion of the cartridge.
[0011]
Further, the present invention is characterized in that a space portion is provided in a portion of the cartridge facing the elastic locking portion. With such a configuration, the elastic locking portion of the disc tray can be kept free in the cartridge mounted state.
[0012]
Further, the present invention provides a plurality of disks mounted on the cartridge on the individual disk trays, the elastic locking portions are provided on the disk trays, and the space portions corresponding to the elastic locking portions of the disk trays. Is provided in the cartridge. With such a configuration, even when the disk tray as described above is pulled out from the cartridge for each disk tray, it can be surely stopped at the cartridge locking portion detachably engaged with the elastic locking portion.
[0013]
In the present invention, in the state where the disk tray is transported to the site where the pickup is installed, a space is provided in a portion of the transport mechanism opposite to the elastic locking portion so that the elastic locking portion is in an undeformed state. A feature is provided. With such a configuration, a space is provided on the transport mechanism at the part where the pickup is installed with respect to the elastic locking portion of the disc tray so that the elastic locking portion of the disk tray can be kept free. Since no elastic stress is applied and creep phenomenon does not occur, and the elasticity of the elastic locking part is maintained even if the disk tray is on the transport mechanism in the part where the pickup is installed for a long time. When the disc tray is pulled out from the cartridge again after being returned to the position, the elastic locking portion can be reliably locked to the cartridge locking portion.
[0014]
In the present invention, a fitting portion is provided as a part of the transport mechanism as the space portion, and a contact portion with the transport mechanism until the disc tray is transported to a portion where the pickup is installed is The disc tray is adapted to the fitting portion in a state where the disc tray is transported to a portion where the pickup is installed. With such a configuration, the disk tray can be reliably transported to a predetermined position in the transport mechanism without rattling at the part where the pickup is installed.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0016]
Figure 1 is an exploded perspective view of an information disk equipment for the embodiment will be described of the present invention, the disc tray 1 for placing a disk 2, 3, one side is opened, a plurality of discs therein It is a box-shaped cartridge in which the tray 1 is mounted so that it can be taken in and out. 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.
[0017]
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.
[0018]
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.
[0019]
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.
[0020]
On the bottom surface of the cartridge case 20, a groove 31 is formed in the cartridge base 17, which engages with a cartridge discharge biasing portion 30 including a biasing spring and a biasing member provided in the cartridge base 17 shown in FIG. 1. 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.
[0021]
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.
[0022]
FIG. 6 is a plan view of the disc tray 1. 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 notch 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. As shown in FIG. 6, the engaging claw portion 43 has an inclination that faces outward and the lower side 43 a is lowered outward.
[0023]
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.
[0024]
FIG. 7A is a plan view with a part cut away for explaining the internal mechanism of the cartridge 3, and FIG. 7B is an enlarged view of the vicinity of the elastic locking piece in FIG. 20 is provided with small projections 50 and 51 that engage with the locking claws 44a and 45a of the elastic locking pieces 44 and 45 when the disc tray 1 is pulled out. .
[0025]
Further, as shown in FIG. 7B, a recess 20a is provided in a portion of the cartridge case 20 that the elastic locking piece 45 (44) faces when the internal disk tray 1 is stored in a predetermined position. Yes. Accordingly, since the elastic locking piece 45 (44) is not elastically deformed, the elastic locking piece 45 (44) is not subjected to elastic stress, and the elastic locking piece 45 can be used in an environment such as a long time and temperature. (44) can be prevented from creeping.
[0026]
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.
[0027]
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.
[0028]
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.
[0029]
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 is fixed to a part of the moving member 67 and engaged with the engaging claw portion 43.
[0030]
As shown in FIG. 9, the engaging piece 68 is inclined so that the outer side formed on the engaging claw portion 43 of the extending arm portion 41 in the disc tray 1 faces outward and the lower side 43a is lowered outward. It is fixed to the moving member 67 with an inclination angle where the tip rises so as to match. Because of this inclination setting, when the disc tray is retracted, the driving force can be directed to the outside of the disc tray 1 with respect to the extending arm portion 41, and the driving force applied to the inside can be suppressed. Since it is possible to prevent an increase in sliding resistance due to transmission of driving force from the long extending arm portion 41 to the short extending arm portion 42 side in the tray 1, sliding on the short extending arm portion 42 side at the time of pulling in is performed. Will be carried out smoothly.
[0031]
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.
[0032]
The elastic locking piece 44 (45) is brought into contact with the protrusion 44b (45b) of the elastic locking piece 44 (45) on the guide plate 66 that guides the disk tray 1 in the transport mechanism 65 when the disk tray 1 is pulled. An inclined portion 66a, which is a release member that acts to bend inward, is provided, and in the process of retracting and moving the disc tray 1 shown in FIG. 10 (a), as shown in FIG. The 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.
[0033]
FIG. 11 is an explanatory view showing a configuration in the vicinity of the elastic locking piece 44 (45) when the disc tray 1 reaches the installation site of the pickup 12, and as shown in FIG. An opening window 66b is provided in the guide plate 66 so that 44 (45) is not elastically deformed. As a result, the elastic locking piece 44 (45) does not need to be subjected to elastic stress at the installation site of the pickup 12 inside the transport mechanism, and the elastic locking piece 44 (45) creeps in an environment such as a long time and temperature. To prevent that. 11B shows a modification of FIG. 11A. In FIG. 11B, the guide plate 66 is provided with a fitting recess 66c that fits into the protruding portion 44b (45b). The fitting concave portion 66c is formed in a gentle concave shape that fits the protruding portion 44b (45b) formed in a gentle convex shape. As a result, not only the elastic locking piece 44 (45) is not subjected to elastic stress, but also the accuracy of the installation location of the disk tray 1 with respect to the pickup 12 can be obtained, and the disk tray 1 is free from self-excited vibration. Noise due to rattling can be prevented.
[0034]
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.
[0035]
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 to the inside of the apparatus main body, and the claw lever 55 is locked. Separate from part 49. 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.
[0036]
At the time of recording / reproduction, 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 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.
[0037]
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.
[0038]
That is, when recording / reproducing, when the cartridge 3 is inserted and set in the apparatus main body, the pickup assembly 19 is used by the stepped guide groove 70 provided in the side frame 8 and the vertical drive mechanism. 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.
[0039]
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.
[0040]
As described above, in this embodiment, at the time of recording / reproduction, the disk tray 1 is completely extracted from the cartridge case 20 and the disk 2 is moved to the installation site of the pickup 12 and the spindle motor 13. When the disk is loaded into or replaced with the disk 1, the disk tray 1 is pulled out from the cartridge case 20 and is locked to the cartridge case 20, so that the disk can be loaded and replaced without any trouble. In addition, the disc tray 1 can be prevented from being accidentally dropped.
[0041]
Further, the locked state of the disc tray 1 by the cartridge case 20 is released by the release member (the inclined portion 66a of the guide plate 66) when the cartridge 3 is loaded into the apparatus main body and recording / reproduction is performed. The disc tray 1 is extracted from the cartridge case 20 by the transport mechanism 65 and smoothly transported to a predetermined position.
[0042]
【The invention's effect】
As described above, according to the present invention, when the disc tray is mounted in the cartridge, the elastic locking portion of the disc tray is not elastically deformed. The disc tray can be locked to the cartridge while the disc tray is pulled out of the cartridge while the disc tray is completely pulled out from the cartridge even when the cartridge is mounted. It is possible to mount and replace the disc on the tray without any trouble.
[0043]
In addition, a space is provided on the transport mechanism so that the elastic locking portion of the disc tray can be kept free, so that no elastic stress is applied to the elastic locking portion when the disc tray is loaded into the transport mechanism, and creeping is performed. Occurrence of the phenomenon can be prevented. As a result, even when the disc tray is on the transport mechanism at the site where the pickup is installed, the elasticity of the elastic locking portion can be maintained when the disc tray is pulled out from the transport mechanism again. .
[Brief description of the drawings]
[1] of the cartridge in the embodiment of the present external perspective view of a cartridge in the embodiment of exploded perspective view [2] The present invention information disc equipment for the embodiment will be described of the Invention [3] The present invention FIG. 4 is a front 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. 7A is a plan view with a part cut away to illustrate the internal mechanism of the cartridge in the embodiment of the present invention, and FIG. 8B is an enlarged view of the vicinity of the elastic locking piece in FIG. FIG. 9 is a perspective view showing a part of 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 the embodiment of the present invention. FIG. 11 is an explanatory diagram of disengagement between the elastic locking piece of the disc tray and the cartridge when retracted in the embodiment of the present invention. FIG. 11 shows the elasticity of the disc tray when the disc tray reaches the pickup installation site in the embodiment of the invention. Explanatory drawing showing the structure near the locking piece [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disc tray 2 Disc 3 Cartridge 4 Insertion slot 20 Cartridge case 20a Recess 21 Groove 37 Elastic sealing member 40 Disc mounting surface 41, 42 Extension arm portion 44, 45 Elastic locking piece 50, 51 Small protrusion 65 Conveying mechanism 66 Guide plate 66a Inclined portion 66b Open window 66c Fitting recess

Claims (5)

The disk cartridge having a built-in a state of being mounted on the disc tray is used, at least a pickup for performing one of recording or reproducing, the disk tray for performing at least one of recording or reproducing to the disk to the disk And a transport mechanism that transports the entire system from the cartridge into the apparatus main body and transports it to a part where the pickup is installed. An elastic locking portion is provided on a part of the disk tray, and the disk tray is pulled out from the cartridge. The cartridge is provided with a latching portion that detachably engages with the elastic latching portion in a state where the disc tray is pulled out, and the disc tray is pulled out of the cartridge in a part of the transport mechanism. The locking part is elastically deformed to engage the locking part of the cartridge. In the information disc equipment having a release member for removal,
Wherein in a state where the disc tray is housed in the cartridge, information disk equipment, characterized in that the elastic locking portion is configured to be non-deformed state. Claim 1 information disk equipment according to characterized in that a space portion on the opposite site of the elastic locking portion in the cartridge. A plurality of discs are mounted on the individual cartridges in the cartridge, the elastic locking portions are provided in the respective disk trays, and the space portions are provided in the cartridge corresponding to the elastic locking portions of the respective disk trays. information disc equipment according to claim 2, wherein a has. In the state where the disk tray is transported to the portion where the pickup is installed, a space is provided at a portion of the transport mechanism opposite to the elastic locking portion so that the elastic locking portion is in an undeformed state. information disc equipment according to claim 2 or 3, wherein the. A fitting portion is provided as a part of the transport mechanism as the space portion, and a contact portion with the transport mechanism until the disc tray is transported to a portion where the pickup is installed is the pick-up of the disc tray. There information disc equipment according to claim 4, wherein the fit into the fitting portion in the carrying state to the site in which it is installed.

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