JP2001056999A - Information disk recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for completely pulling out a disk tray from a cartridge with a locking mechanism for preventing the unexpected unloading of the disk tray from the cartridge, and to easily pull out the disk tray from the cartridge when recording/reproducing is carried out by changing or loading a disk on a device. SOLUTION: When a disk is loaded in a disk tray 1 or changed, a shaft body 54 is moved into a device main body by depressing a release button 27 in the side of a cartridge 3, and a lever 55 having a lug is moved away from an engaging projecting part 49. Thus, roughly the entire disk tray 1 is pulled out by pulling the disk tray 1 from the opening 35 of a cartridge case 20 to the outside against the elastic locking force of an elastic locking plate 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing disk mounted on a disk tray, using a built-in cartridge, and pulling out a selected disk from the cartridge to record data on the disk. The present invention relates to an information disk recording / reproducing apparatus configured to perform / reproduce information, and more particularly to a lock / unlock configuration for preventing movement of a disk tray.

[0002]

2. Description of the Related Art Conventionally, CD-ROM, CD-R, C
2. Description of the Related Art In a recording / reproducing apparatus for reproducing and / or recording data on a disc such as a D-RW, a plurality of discs are mounted on individual disc trays,
Built in one cartridge and record /
Attach to the playback device, select one of the discs to be used from among the plurality of discs, and record / play back the disc tray on which the selected disc is mounted by the pickup installed in the recording / playback device. There is a configuration in which the movement is performed to a part within the operation range.

[0003] For example, Japanese Patent Publication No. 2-56745 discloses that
A plurality of disk trays on which disks are mounted are rotatably provided in a cartridge (magazine), and the disk tray on which the selected disk is mounted is recorded / reproduced by a pickup installed in a recording / reproducing apparatus. A configuration of a disc player that is rotated to a position within an operation range is described.

[0004] The disc player described in Japanese Patent Publication No. 2-56745 has a disc tray holding mechanism to prevent the disc tray from inadvertently protruding outside the cartridge when the operator handles the cartridge. Have been.

As described above, by using a cartridge in which a plurality of disks are mounted on individual disk trays, it is possible to save the trouble of mounting and replacing disks one by one in a recording / reproducing apparatus.

[0006]

[Problems to be solved by the invention]
The cartridge described in Japanese Patent No. 6745 has a configuration in which the disk tray is rotated by a rotation support shaft, and the moving space of the disk tray is smaller than that in a structure in which the disk tray moves linearly with respect to the cartridge. Need widely.

In addition, since the disk tray has a structure in which the disk tray is supported by the cartridge by the rotation support shaft, the disk tray does not come off. Further, since the disk tray is provided with a disk tray holding mechanism, the disk tray is inadvertently prepared. It does not move, and therefore, it is possible to prevent the disc from dropping from the disc tray and causing damage. On the other hand, the disc tray can move only in the rotatable range, and there is a problem in the degree of freedom of movement.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to prevent the disc tray from being inadvertently ejected from the cartridge even if the disc tray is completely pulled out of the cartridge. An object of the present invention is to provide an information disc recording / reproducing apparatus which has a lock function for preventing the disc from being ejected from a cartridge when exchanging a disc or mounting / dismounting the disc in a recording / reproducing apparatus.

[0009]

In order to achieve the above object, the present invention uses a cartridge in which a disk for recording / reproducing information is mounted on a disk tray and performs recording / reproduction on the disk. An information disk having a pickup for performing recording and reproducing, and a transport mechanism for pulling out the entire disk tray from the cartridge into the apparatus main body for recording / reproducing the disk and transporting the disk tray to a portion where the pickup is installed. In the recording / reproducing apparatus, a lock member is provided in the cartridge for engaging with a part of the disk tray to prevent the movement of the disk tray, and the lock member is operated outside the cartridge to allow the disk tray to move. A lock release button for releasing the engagement is provided. Even if the tray is completely pulled out of the cartridge, the locking member can prevent the disc tray from falling off the cartridge, and when replacing the disc with the disc tray, the outside of the cartridge can be used. By operating the lock release button, the locking relationship between the disk tray and the cartridge is released, and the disk tray is moved outside, so that the disk replacement operation or the like can be performed without any trouble.

Further, the present invention uses a cartridge in which a disk for recording / reproducing information is mounted on a disk tray, and uses a pickup for recording / reproducing on / from the disk, and a recording / reproducing / reproducing device for the disk. An information disc recording / reproducing apparatus including a transport mechanism for pulling out the entire disc tray from the cartridge into the apparatus main body to perform reproduction and transporting the disc tray to a portion where the pickup is installed. A lock member that engages with a part of the tray to prevent the movement of the disk tray is provided, and in the process of inserting the cartridge into the device main body, the lock member is actuated in the apparatus main body to allow the disk tray to move. A lock release member for releasing the engagement is provided. With this configuration, Even if the disc tray is structured to be completely removed from the cartridge, the locking member can prevent the disc tray from falling off the cartridge, and when the disc tray is loaded into the apparatus main body to perform recording / reproduction, The locking relationship between the disk tray and the cartridge is released by the unlocking member, and the disk tray is extracted by the transport mechanism and transported to a predetermined position.

Further, the present invention uses a cartridge in which a disk for recording / reproducing information is mounted on a disk tray and uses a pickup for recording / reproducing with respect to the disk, and a recording / reproducing apparatus with respect to the disk. An information disc recording / reproducing apparatus comprising: a transport mechanism for pulling out the entire disc tray from the cartridge into the apparatus main body to perform reproduction, and transporting the disc tray to a portion where the pickup is installed. A lock member that engages with a part of the tray to prevent the movement of the disk tray is provided, and a lock release button that operates the lock member to release the engagement with the disk tray is provided outside the cartridge. The process of inserting the cartridge into the apparatus main body. A lock releasing member for activating the lock member to release the engagement with the disk tray. With this configuration, even if the disk tray is completely removed from the cartridge, The lock member prevents the disc tray from dropping out of the cartridge, and when replacing the disc with the disc tray, the lock release button is operated from the outside of the cartridge so that the disc tray and the cartridge can be connected. Since the locking relationship is released and the disk tray is moved to the outside, the disk replacement operation or the like can be performed without any trouble. Further, when recording / reproducing is performed with the disc tray loaded into the apparatus main body, the locking relationship between the disc tray and the cartridge is released by the unlocking member, and the disc tray is extracted by the transport mechanism and transported to a predetermined position. Is done.

The present invention also provides the above-mentioned lock releasing member,
A guide pin for guiding the insertion of the cartridge into the apparatus main body is provided. With this configuration, the lock release function and the guide function are provided in the same member, thereby simplifying the installation configuration of the lock release member. It becomes a thing.

[0013]

FIG. 1 is an exploded perspective view of an information disc recording / reproducing apparatus for explaining an embodiment of the present invention, wherein 1 is a disc tray on which a disc 2 is placed, and 3 is a disc tray.
This is a box-shaped cartridge which is open at one side and in which a plurality of disc trays 1 are mounted so as to be able to be taken in and out.
Then, a front cover 5 having an insertion opening 4 into and out of which the cartridge 3 is inserted, a top cover 6, an under cover 7, side frames 8, 9, and a rear frame 1 are provided.
0 constitutes an exterior body of the apparatus main body.

Inside the apparatus main body, a printed circuit board 11 on which control and drive system circuits and electric parts are mounted, a pickup 12 for optically recording / reproducing on and from the disk 2 and a disk 2 are rotated. A pickup module 14 having a spindle motor 13 to be driven and moved up and down by a drive mechanism, and a pickup module base 15 for installing the pickup module 14
And a clamp member 18 for pressing the disk 2 and loading the disk 2 on the turntable of the spindle motor 13.
Vertically movable clamp base assembly 16 provided with
And a cartridge mounting unit 1 in which the cartridge 3 is loaded.
7, a cartridge base 17a and a cartridge top base 17b are installed. A pickup assembly 19 is constructed by assembling the pickup module 14, the pickup module base 15, and the clamp base assembly 16.

FIG. 2 is an external perspective view of the cartridge 3, and FIG.
Is a front view of the opening side of the cartridge 3, and in this example, 5 is
In order to be able to store one disc tray 1, five steps of grooves 21 are provided on opposing inner walls of the cartridge case 20, and as shown in FIG.
Lock mechanisms 22 and 23 that engage with a part of each disk tray 1 are provided on both sides behind the inner wall of the disk tray 1 so that the stored disk trays 1 do not come out.

FIG. 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, the cartridge case 20 has a side wall 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 lock pin 25 is provided, and a release button 27 that releases the engagement between the lock mechanism 22 and the disc tray 1 is provided.

FIG. 1 shows a bottom view of the cartridge case 20.
And a groove 31 for engaging with a cartridge discharge urging portion 30 including an urging spring and an urging member provided on the cartridge base 17a.
A guide groove 33 in which a plurality of (three are shown in FIG. 1) guide pins 32 provided in 7a is formed.
At the rear end of the guide groove 33, a part of a first lock release lever (described in detail later) 34 of the lock mechanisms 22, 23 is provided so as to be exposed.

A projecting peripheral portion 36 is provided on the side opposite to the opening 35 side of the cartridge case 20 which is to be inserted into the apparatus main body. The elastic sealing member 37 elastically contacting the front cover 5 while being inserted into the front cover 5.
As shown in FIG. 4, the periphery of the insertion slot 4 is blocked from the outside to prevent dust and the like from entering the apparatus main body from the outside.

FIG. 6 is a plan view of the disc tray 1.
The disc tray 1 has a substantially semi-disc-shaped mounting surface 40 on which the disk 2 is mounted, and the side of the mounting surface 40 having the notch 40 a is located on the opening 35 side of the cartridge case 20. It is inserted into the cartridge case 20. Extending arms 41 and 42 are provided on both sides of the notch 40a of the disc tray 1, and in this example, one of the extending arms 41 is longer than the other extending arm 42 due to the arrangement of the components. ing. An engagement claw 43 is formed at the tip of the long extension arm 41. This engagement claw 43
6 has an inclination that faces outward and the lower side 43a falls outward.

Elastic locking pieces 44 and 45 are formed on the outer sides of the extending arms 41 and 42 on the side opposite to the notch 40a of the disc tray 1 by partially cutting them out. Further, recesses 46, 47 near the elastic locking pieces 44, 45
Are formed with locking projections 48, 49 which engage and disengage with the lock mechanisms 22, 23 shown in FIG. Elastic locking pieces 44, 4
5 is provided with locking claws 44a and 45a at the outer end portions, and with protrusions 44b and 45b at the outer middle portion.

FIG. 7 is a plan view, partially cut away, for explaining the internal mechanism of the cartridge 3.
When the disc tray 1 is pulled out, the elastic locking pieces 4
Small projections 50 and 51 are provided for engaging with the locking claws 44a and 45a in 4 and 45. In this manner, the disc tray 1 is
From falling off.

At one corner on the inner rear side of the cartridge case 20, there are provided five elastic locking plate members 52, such as leaf springs, constituting the one lock mechanism 23 shown in FIG. , Locking projection 48 of each disk tray 1
Engage with. Further, on the other corner of the cartridge case 20, a lever 5 with a claw constituting the other lock mechanism 22 is provided.
5 are provided so as to be lined up and down, and are engaged with the locking projections 49 of each disk tray 1. The lever 55 with the claw is
It is fixed to a substantially central portion of a shaft 54 provided integrally with the release button 27. The shaft 54 has a fitting shaft 54 a protruding therefrom, and further receives a biasing force in an outward direction from a spring 56.

The center of the fitting shaft 54a is rotatable.
The first lock release lever 34 is fixed to the recess 60 a of the second lock release lever 60, which is exposed at the rear end of the guide groove 33. The second lock release lever 60 and the first lock release lever 34 rotate together.

FIG. 8 is a perspective view showing a part of the back side of the clamp base assembly 16.
Is engaged with the engaging claw 43 of the extension arm 41 of the disc tray 1 on which the disc selected for use is mounted, and the disc tray 1 is drawn into the apparatus main body from the cartridge 3. Mechanism 65 and a guide plate 66 for guiding the movement of the disc tray 1 are provided.

FIG. 9 is a view showing a main part of a transport mechanism 65 for pulling in the disk tray 1. The transport mechanism 65 may have various structures. In this example, the apparatus is provided on the pickup assembly 19 and receives a driving force from a drive motor (not shown) via a transmission mechanism, and as shown in FIG. 9, the rear side (front cover 5 side) and the front side (rear frame 10 side) of the apparatus main body. Side), and a moving member 67 that reciprocates between
Engaging piece 68 fixed to a part of the
It is composed of

In FIG. 9, the engaging piece 68 faces the outer side formed on the engaging claw 43 of the extension arm 41 of the disc tray 1 and matches the inclination of the lower side 43a which falls outward. As described above, the movable member 67 is fixed to the moving member 67 with an inclination angle such that the tip is raised. When the disc tray is pulled in due to such an inclination setting, the driving force can be directed to the outside of the disc tray 1 with respect to the extension arm portion 41, and the driving force applied to the inside can be suppressed. Since the driving force can be prevented from being transmitted from the long extension arm 41 to the short extension arm 42 side of the tray 1 to increase the sliding resistance, the sliding of the short extension arm 42 at the time of retraction can be prevented. Will be performed smoothly.

FIGS. 10 (a) and 10 (b) are views for explaining the disengagement of the cartridge 3 from the elastic locking pieces 44, 45 of the disk tray 1 during the pull-in operation (in the drawing, one of the elastic locking pieces 44 is shown). In this example, even if the disk tray 1 is pulled out of the cartridge 3 when exchanging a disk, the disk tray 1 is prevented from being completely detached from the cartridge 3 and falling off. As shown in FIG. 7, the cartridge case 2
The small projections 50 (51) of the disc tray 1 and the locking claws 44a (45a) of the elastic locking pieces 44 (45) of the disc tray 1 are prevented from engaging and coming off. For this reason, when the disk tray 1 is moved to the position where the pickup 12 is installed at the time of recording / reproduction, when the disk tray 1 is completely pulled out of the cartridge 3 and moved, the small projection 50 (51) and the elastic locking piece are used. 44 (45) will hinder the engagement.

Therefore, in the present embodiment, when the disk tray 1 is pulled in, the projection 44b (45b) of the elastic locking piece 44 (45) comes into contact with the guide plate 66 for guiding the disk tray 1 in the transport mechanism 65. The elastic locking pieces 44 (4
5) is provided with an inclined portion 66a which is a release member acting to bend inward. As shown in FIG. 10B, in the process of pulling in the disk tray 1 shown in FIG. The elastic locking pieces 44 (45) are elastically deformed inward to release the engagement with the small projections 50 (51) of the cartridge 3 so that the disk tray 1 can be pulled into the apparatus main body without any trouble. I have.

In the cartridge 3 having the above structure, when not in use, each disk tray 1 has one locking projection 48 engaged with the elastic locking plate 52 of one locking mechanism 23 and the other locking projection, respectively. 49 are engaged with the claw levers 55 of the other lock mechanism 22, respectively, and cannot be pulled out from the cartridge 3.

When loading or exchanging the disc 2 in the disc tray 1, when the release button 27 on the side of the cartridge 3 is pressed, the shaft 54 moves into the inside of the apparatus main body, and the lever 55 with the claw is moved. Move away from the locking projection 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 disk tray 1 can be pulled out.
You can draw out almost the whole of. At this time, the small protrusions 50 and 51 of the cartridge case 20 and the locking claws 44 a and 45 on the elastic locking pieces 44 and 45 of the disc tray 1.
Since the disk tray 1 is engaged, the disc tray 1 does not come out further, and the occurrence of troubles such as the disc tray 1 accidentally falling out is prevented.

At the time of recording / reproduction, when the cartridge 3 is inserted into the apparatus main body from the insertion opening 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 17a in the apparatus main body. The cartridge 3 is guided by the guide pins 32 and inserted into the inner side of the apparatus main body. When the cartridge 3 is inserted to a predetermined position, the guide pin 32 provided at the farthest position comes into contact with the first lock release lever 34 provided at the far end of the guide groove 33 and is pressed. I do. Then, as shown in FIG. 7, the first lock release lever 34
Is rotated counterclockwise, and the second lock release lever 60 is also rotated counterclockwise. The rotation of the second lock release lever 60 causes the shaft body 5 to move through the fitting shaft 54a.
4 is depressed against the urging force of the spring 56, and the claw lever 55 is separated from the locking projection 49 of the disc tray 1.

In this manner, the cartridge 3 is inserted and set in the predetermined position of the apparatus main body, the operation lock on the disk tray 1 is released, and the disk 2 used for recording and / or reproduction is selected. Then, the disk tray 1 on which the disk 2 is placed is pulled out of the cartridge 3. In this example, each unit is driven and controlled by a CPU (central processing unit) mounted on the printed circuit board 11.

That is, when recording / reproducing, the cartridge 3
When the pickup assembly 19 is inserted and set in the apparatus main body, the pickup assembly 19 is stored in the disc tray 1 having the disc 2 to be used by the step-like guide mechanism 70 provided on the side frame 8 and the vertical drive mechanism. The cartridge case 20 is moved to the height of the groove 21 of the cartridge case 20. After the movement, the transport mechanism 65 of the clamp base assembly 16
Starts, and as shown in FIG. 9, the disk tray 1 is pulled out of the cartridge case 20 and the disk tray 1 is
Is moved in the direction of the spindle motor 13. When the disk 2 of the disk tray 1 reaches a position on the turntable of the spindle motor 13 and facing the pickup 12, the clamp base assembly 16
Thus, the disk 2 is loaded on the turntable of the spindle motor 13.

After the completion of the loading, the spindle motor 13 is rotated and the disk 2 is driven to rotate, and the optical recording / reproducing operation and processing as known by the pickup 12 are performed.

[0035]

As described above, according to the present invention,
Although the disc tray is completely pulled out of the cartridge, the lock member prevents the disc tray from dropping out of the cartridge. By operating the button, the locking relationship between the disc tray and the cartridge is released, and the disc tray can be moved outside.
Disk replacement can be performed without any trouble.

Further, when recording / reproducing is performed by being loaded into the apparatus main body, the locking relationship between the disk tray and the cartridge can be released by the unlocking member, so that the disk tray is pulled out by the transport mechanism. Being
It can be transported to a predetermined position.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an information disc recording / reproducing apparatus for describing an embodiment of the present invention.

FIG. 2 is an external perspective view of a cartridge according to the embodiment of the present invention.

FIG. 3 is a front view of the opening side of the cartridge according to the embodiment of the present invention.

FIG. 4 is a side view of the cartridge according to the embodiment of the present invention.

FIG. 5 is a bottom view of the cartridge according to the embodiment of the present invention.

FIG. 6 is a plan view of a disc tray according to the embodiment of the present invention.

FIG. 7 is a partially cutaway plan view illustrating an internal mechanism of the cartridge according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a part of the back side of the clamp base assembly according to the embodiment of the present invention.

FIG. 9 is a diagram showing a main part of a transport mechanism for pulling in a disk tray according to the embodiment of the present invention.

FIG. 10 is an explanatory diagram of disengagement of the cartridge from the elastic locking piece of the disc tray and the cartridge during retraction in the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc tray 2 Disc 3 Cartridge 4 Insertion opening 20 Cartridge case 21 Groove 22, 23 Lock mechanism 27 Release button 32 Guide pin 33 Guide groove 34 First lock release lever 49 Locking convex part 54 Shaft 54a Fitting shaft 55 Claw With lever 56 Spring 60 Second lock release lever 65 Transport mechanism

Continued on the front page (72) Inventor Toshiya Tsukasa 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Company (72) Inventor Nobuyuki Akaishi 1-3-6 Nakamagome, Ota-ku, Tokyo Ricoh Company F-term (reference) 5D072 AB22 BH05 BH15 CB08 EB02 EB04 EB14

Claims (4)

[Claims] An information recording / reproducing disk is mounted on a disk tray using a built-in cartridge, and a pickup for recording / reproducing to / from the disk and recording / reproducing to / from the disk are used. An information disk recording / reproducing apparatus comprising: a transport mechanism for pulling out the entire disc tray from the cartridge into the apparatus main body and transporting the disc tray to a portion where the pickup is installed. A lock member is provided for engaging the unit to prevent movement of the disc tray, and a lock release button is provided outside the cartridge to operate the lock member to release the engagement with the disc tray. Information disc recording / reproducing device. 2. A cartridge in which an information recording / reproducing disk is mounted on a disk tray is used. A pickup for recording / reproducing on / from the disk and a recording / reproducing on / from the disk are used. An information disk recording / reproducing apparatus comprising: a transport mechanism for pulling out the entire disc tray from the cartridge into the apparatus main body and transporting the disc tray to a portion where the pickup is installed. A lock member that engages with the unit to prevent the movement of the disc tray, and in the process of inserting the cartridge into the device main body, the lock member is actuated to engage the disc tray in the device main body. An information disc recording / reproducing apparatus provided with an unlocking member for releasing. 3. A built-in cartridge in which an information recording / reproducing disk is mounted on a disk tray is used, and a pickup for performing recording / reproducing on the disk and recording / reproducing on / from the disk are used. An information disk recording / reproducing apparatus comprising: a transport mechanism for pulling out the entire disc tray from the cartridge into the apparatus main body and transporting the disc tray to a portion where the pickup is installed. A lock member that engages a portion of the cartridge to prevent movement of the disc tray; and a lock release button that operates the lock member to release the engagement with the disc tray outside the cartridge. In the process of inserting the cartridge into the apparatus main body, the Information disc recording / reproducing apparatus which actuates the member, characterized in that a lock release member for releasing the engagement with the disc tray. 4. The information disc recording / reproducing apparatus according to claim 2, wherein the unlocking member is a guide pin for guiding insertion of the cartridge into the apparatus main body.