WO2006028225A1

WO2006028225A1 - Tray and disc device

Info

Publication number: WO2006028225A1
Application number: PCT/JP2005/016662
Authority: WO
Inventors: Goro Naoki
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 2004-09-10
Filing date: 2005-09-09
Publication date: 2006-03-16

Abstract

A tray (40) is provided for mounting a cartridge (20). The cartridge (20) includes a disc storing part for storing a disc (21), a plate part provided with a window part for exposing a part of an information layer of the disc (21), a pair of side walls (22a, 22b), a front wall (29a) and a rear wall (29b) for connecting the pair of side walls (22a, 22b), a groove (23) formed on the side wall (22a), and a recessed part (24) recessed in a depth direction of the groove (23) and connected with the groove (23). The tray (40) is provided with a protruding part (43) which engages with the recessed part (24), and a protruding part (44) which is integrated with the protruding part (43) and protrudes to the side of a rear wall (29b), in a status where the cartridge (20) is mounted.

Description

Specification

Tray and disk device

Technical field

The present invention relates to a disk device that records and reproduces information using a disk that is an information recording medium for video, music, and computer data, and more particularly to a tray on which a cartridge is mounted.

Background art

[0002] In recent years, the use of large-capacity optical discs such as DVD-RAM for recording or computer is rapidly spreading. In addition, high-quality broadcasting has begun and demands for further improvement of high-quality and long-time recording are increasing. In order to meet these demands, it is necessary to shorten the wavelength of the red laser and to use a method other than the current DVD-RAM method.

[0003] For this reason, development of a blue-ray disc (hereinafter referred to as “BD”) capable of producing a large capacity by miniaturizing a signal using a blue laser is progressing. In addition, Blu-ray Disc has a finer signal than DVD-RAM, so it is necessary to use a cartridge that is different from DVD-RAM, which is more sensitive to dust.

[0004] A tray that uses a DVD-RAM cartridge, as proposed in Patent Document 1, has a convex portion that fits in a concave portion on the rear end surface of the DVD-RAM cartridge on the rear surface of the tray facing the rear end surface of the cartridge. By installing the cartridge, the cartridge will not fall even when the tray is placed vertically.

However, the rear end surface of the BD cartridge is not formed with as many concave portions as the DVD-RAM cartridge. For this reason, the structure in which the convex portion is simply provided on the rear surface of the tray is insufficient to prevent the cartridge from dropping when the tray is placed vertically.

Patent Document 1: Japanese Patent Laid-Open No. 11-259949

Disclosure of the invention

[0006] The present invention solves the conventional problems as described above, and includes a convex portion provided on the back surface of the tray. It is an object of the present invention to provide a disk device that can prevent a force cartridge from dropping when a tray is placed vertically even in a cartridge that does not have a recess that can be securely engaged.

[0007] In order to achieve the above object, the tray of the present invention includes a disc storage portion that stores a disc having an information layer, a plate portion that includes a window portion that exposes a part of the information layer, and

A pair of side walls erected perpendicularly to the plate part and the pair of side walls are connected to face the front wall on the side where the plate part is cut out at the window part and the front wall through the plate part. A rear wall, a groove formed on at least one of the side walls and recessed toward the disk storage portion, a side wall formed with the groove, and a notch formed by notching the plate portion. A tray on which a cartridge having a recessed portion to be connected is mounted,

In a state where the cartridge is mounted, a protrusion that engages with the recess and protrudes perpendicularly from the tray bottom plate facing the plate, and at least one of the protrusion and the groove are formed integrally with the protrusion. A tray characterized by having a protruding portion protruding on the top.

[0008] The disc device of the present invention transmits and receives a user information signal to the information layer or the second information layer, the tray of the present invention, a rotating means for rotating the disc or the second disc, and the information layer or the second information layer. Between the recording means and the Z or reproducing means, the placement position for placing the cartridge or the second cartridge on the tray, and the rotational position for rotating the disk or the second disk by the rotating means. A loading means for loading the tray, and an urging means for urging the cartridge or the second cartridge from the rotational position toward the position described above are provided.

Brief Description of Drawings

FIG. 1A is a schematic configuration diagram in a loading completion state of a disk device according to an embodiment of the present invention.

1B is a schematic configuration diagram of the disk device shown in FIG. 1A in a disk drive state.

FIG. 2A is a perspective view of a RAM cartridge.

2B is a perspective view of the back surface of the RAM cartridge in FIG. 2A.

FIG. 2C is a perspective view of the RAM cartridge of FIG. 2A with the shirts open.

FIG. 3A is a perspective view of a BD cartridge.

FIG. 3B is a perspective view showing a state where the shirt of the BD cartridge in FIG. 3A is closed. FIG. 3C is a perspective view showing a state where the shirt of the BD cartridge in FIG. 3A is opened.

FIG. 4A is a plan view of a DVD—RAM cartridge placed on a tray.

FIG. 4B is a sectional view taken along line AA in FIG. 4A.

FIG. 5A is a plan view of the BD cartridge according to one embodiment of the present invention placed on a tray.

FIG. 5B is a sectional view taken along line BB in FIG. 5A.

FIG. 6A is a perspective view of the BD cartridge according to one embodiment of the present invention placed on a tray.

FIG. 6B is an enlarged view of a part D in FIG. 6A.

FIG. 7A is a plan view of a BD cartridge according to another embodiment of the present invention placed on a tray.

FIG. 7B is a cross-sectional view taken along line CC in FIG. 7A.

FIG. 8A is a perspective view of a BD cartridge according to another embodiment of the present invention mounted on a tray.

FIG. 8B is an enlarged view of part E in FIG. 8A.

FIG. 9 is a perspective view showing another example of the protrusion 43.

FIG. 10A is a perspective view showing still another example of the protrusion 43.

FIG. 10B is a plan view showing a state in which the BD cartridge is placed on the tray provided with the protrusion 43 in FIG. 10A.

FIG. 11 is a configuration diagram of a main part of a tray according to another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention includes a tray having a protrusion having a protrusion protruding in at least one of the groove forming directions provided in the cartridge by loosely inserting a notch formed by cutting the bottom plate of the cartridge. Therefore, even if the cartridge does not have a hole that engages with the second protrusion provided on the tray on the rear wall of the cartridge, the protrusion engages with the groove provided on the cartridge. The cartridge can be prevented from falling.

In the tray of the present invention, it is preferable that the protrusion includes a second protrusion that engages with the recess and protrudes in the depth direction of the groove. According to this configuration, the shape of the groove The action of the convex part engaging with the groove part in the forming direction and the action of the second convex part can be combined to promote the fall preventing action when the force cartridge is vertically placed.

[0012] In the tray of the present invention, the tray has a second disk storage portion for storing a second disk having a second information layer, and a second portion for exposing a part of the second information layer. A second plate portion having two window portions, a pair of second side walls erected perpendicular to the second plate portion, and the pair of second side walls, A second front wall on the side where the second plate portion is cut out in the window portion, a second rear wall facing the second front wall via the second plate portion, and the second A second recess formed on the second rear wall side of the side wall, including a cutout portion formed by cutting out the second plate portion, and recessed toward the second disk storage portion side, and A second cartridge provided with a pair of holes formed in the second rear wall and recessed toward the second disk storage portion is also mounted, and in the state where the second cartridge is mounted, The projecting portion engages with the second recess, and the tray rear wall inner wall portion facing the second rear wall, and the pair of hole portions of the second cartridge on the tray rear wall inner wall portion It is preferable to have a second protrusion that engages with.

[0013] According to this configuration, even if the second cartridge has a second recess that does not intersect the recess, the pair of holes provided in the rear wall of the second cartridge and the second protrusion In addition to the engagement, the engagement between the second recess and the projection is advantageous for preventing the second cartridge from dropping when the tray is placed vertically. Can be placed vertically.

[0014] In addition, it is preferable that the protrusions are continuously connected to a tray side wall formed on the outer periphery of the tray. According to this configuration, molding is easy, and the toughness can be improved because the projection is connected to the tray bottom plate and the side wall.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Also in this embodiment, a Blu-ray disc using a blue laser is referred to as “BD”. FIG. 1 is a schematic configuration diagram of a disk device according to an embodiment of the present invention. The disk device shown in FIG. 1 is an example of a disk device provided with loading means.

Since the tray 1 reciprocates in the horizontal direction (arrow A direction), the cartridge 2 placed on the tray 1 can be taken in and out of the housing 4. For details, see Force Cartridge 2 later. A disc 3 which is an information recording medium and has an information layer is accommodated.

The loading means can load the tray 1 between a placement position where the cartridge 2 is placed on the tray 1 and a rotational position where the disk 3 is rotated by the motor 6 which is a rotation means.

Specifically, in the ejected state in which the tray 1 is transferred to the outside of the housing 4, the cartridge 3 can be taken in and out of the housing 4. To start driving the disk 3, first, the tray 1 on which the cartridge 2 is placed is transferred into the housing 4. Figure 1A shows the completed movement. In FIG. 1A, an elevating base 5 is arranged so as to face the tray 1. A motor 6 that is a rotating means of the disk 3 is mounted on the lift base 5. The ascending / descending base 5 can be moved up and down so as to approach or separate from the tray 1 around the rotation shaft 7 by a driving means (not shown).

FIG. 1B shows a drive state of the disk 3. The lift base 5 is approaching the tray 1, and the disk 3 is placed on the turntable 8 of the motor 6. The disk apparatus shown in this figure includes an optical head (not shown) and includes recording means and / or reproducing means for transmitting / receiving a user information signal to the information layer. In the state shown in FIG. 1B, since the shatter of the cartridge 3 is in an open state, the optical head force disk 3 can be irradiated with laser light. In this state, the disc 3 is recorded and reproduced while the disc is driven to rotate.

Next, FIG. 2A is a perspective view of a DVD-RAM cartridge (hereinafter referred to as “RAM cartridge”), and FIG. 2B is a perspective view of the back surface (mounting surface on the tray) side of the RAM cartridge of FIG. 2A. It shows. FIG. 2C shows a perspective view of the RAM cartridge of FIG. 2A with the shirt 14 opened. In FIG. 2A, the inside of the RAM cartridge 10 is a disk storage unit, in which a disk 16 (FIG. 2C) having an information layer is stored. In the state of FIG. 2C, since the shirt 14 is opened, a part of the disk 16 is exposed in the window portion 17 formed by cutting out the case portion 15 which is a plate portion. Also on the back side shown in FIG. 2B, when the shutter 14 is opened, the window 17 appears and a part of the disk 16 is exposed.

The RAM cartridge 10 includes four side walls, a pair of side walls 13a, 13b, a front wall 18a, and a rear wall 18b. The pair of side walls 13 a and 13 b are erected vertically with respect to the case portion 15. The side walls 13a and 13b are side walls parallel to the transfer direction (the direction of arrow B) of the RAM cartridge 10 mounted on the tray, and regulate the thickness of the disk storage portion. The front wall 18a and the rear wall 18b are walls connecting the pair of side walls 13a and 13b, respectively. The side cut out by the window 17 is the front wall 18a, and the opposite wall is the rear wall 18b. The front wall 18a and the rear wall 18b are opposed to each other via a case portion 15 that is a plate portion.

[0022] A recess 12 is formed in the pair of side walls 13a and 13b. The recess 12 forms a notch 12a in which the lower case portion 15 is notched inward from the side wall 13a of the RAM cartridge 10, and a recess is formed in the side wall 13a. . In addition, the rear wall 18 b is formed with a pair of holes 11 that form a recess that is recessed toward the disk storage portion.

Further, as shown in FIG. 2B, holes 19 a and 19 b are provided on the back surface side of the RAM cartridge 10. The holes 19a and 19b can be used as positioning holes when the RAM cartridge 10 is placed on the tray 1. For example, if the holes 19a and 19b are engaged with positioning pins provided on the tray side, the positioning becomes more reliable.

FIG. 3A is a perspective view of a BD cartridge. 3B and C are the back side (mounting surface on the tray) of the cartridge of FIG. 3A, FIG. 3B shows the state where the shirts 27a and 27b are closed, and FIG. 3C shows the state where the shirts 27a and 27b are opened. Show.

In FIG. 3A, the inside of the BD cartridge 20 is a disk storage portion, in which a disk 21 having an information layer is stored. In FIG. 3A, in order to show the internal structure of the BD cartridge 20, illustration of a portion that substantially corresponds to the disk 21 of the upper case portion 25b that is a plate portion is omitted. The BD cartridge 20 includes four side surfaces of a pair of side walls 22a and 22b, a front wall 29a, and a rear wall 29b. The pair of side walls 22a and 22b are erected vertically to the upper case portion 25b. The side walls 22a and 22b are side walls parallel to the transfer direction (arrow B direction) of the BD cartridge 20 mounted on the tray, and regulate the thickness of the disc storage portion.

[0026] The front wall 29a and the rear wall 29b are walls that connect the pair of side walls 22a and 22b, respectively. The side cut out at the window 28 (FIG. 3B) is the front wall 29a, and the opposite wall is the rear wall 29b. The front wall 29a and the rear wall 29b are opposed to each other via an upper case portion 25b and a lower case portion 25a (FIG. 3B) which are plate portions. [0027] Of the side surfaces 22a and 22b, a groove 23 that is recessed toward the disk storage portion is formed on one side surface 22a. As will be described in detail later, a part of the shirt 27a in the BD cartridge 20 is exposed in the groove 23! /.

[0028] A recess 24 is formed on the rear wall 29b side of the side wall 22a. The recess 24 includes a notch 24a in which a lower case portion 25a (FIG. 3B), which is a plate portion, is notched inward from the side wall 22a, and is connected to the recess 23 in the depth direction of the groove 23.

In the state of FIG. 3B, the pair of shirters 27a and 27b force S is closed. Of the pair of shirters 27a and 27b, the shirter 27a is exposed at the position of the side wall 22a as shown in FIG. 3A. Engaging means for engaging the exposed portion of the shirter 27a is formed on the housing side of the disk device, and the shirter 27a and the shirter 27b engaged therewith rotate as the tray is transferred, and the shirter 27a 27b will open and close. The state of FIG. 3C shows a state in which the force of the shirt 27a and 27b is fully opened, and the disk 21 is exposed in the window portion 28. FIG.

Further, as shown in FIG. 3B, holes 25c and 25d are provided on the back surface side of the BD cartridge 20. The holes 25c and 25d can be used as positioning holes when the BD cartridge 20 is placed on the tray 1. For example, if the holes 19a and 19b are engaged with positioning pins provided on the tray side, the positioning becomes more reliable.

Next, the mounting of the cartridge on the tray will be described with reference to the drawings. 4A and 4B are diagrams for explaining the mounting of the RAM cartridge 10, and FIGS. 5A to 10 are diagrams for explaining the mounting of the BD force cartridge 20. FIG.

Note that the tray 30 in FIG. 4A is a second protrusion provided on the tray corresponding to the RAM cartridge 10.

The features 40 (50 described later), and the trays 40 and 50 in FIGS. 5A to 10 illustrate the features of the protrusions (projections 43 described later) included in the tray corresponding to the BD cartridge 20. However, as will be described later, this does not exclude the configuration that shares the features shown in FIGS.

FIG. 4A is a plan view of the main part in a state where the RAM cartridge 10 is mounted on the tray 30, and FIG. 4B is a cross-sectional view taken along line AA in FIG. 4A. The tray 30 includes a panel 31 and a pressing member 32 which are urging means. With the RAM cartridge 10 mounted in the tray 30, the pressing member 32 moves the RAM cartridge 10 to the front side of the tray 30 by the restoring force of the panel 31. Press to press (arrow C direction)! /

A convex portion 34 is formed on the inner wall surface 33 a of the wall portion 33 on the front side of the tray 30. The protrusion 34 protrudes so as to enter the recess 11 of the RAM cartridge 10 attached to the tray 30. That is, when the RAM cartridge 10 is mounted on the tray 30, the convex portion 34 and the concave portion 11 are engaged with the pressing member 32 pressing the RAM cartridge 10 toward the front side of the tray 30. . As a result, the RAM cartridge 10 can be securely and stably mounted on the tray 30, and the RAM cartridge 10 can be prevented from dropping when the tray 30 is placed vertically.

Further, a protrusion 36 is formed which protrudes from the inner surface of the tray bottom plate 37 of the tray 30 in the thickness direction (vertical direction) of the RAM cartridge 10 and protrudes from the inner surface of the tray side wall 35 to the inside of the tray 30. Yes.

The protrusion 36 protrudes so as to enter the recess 12 of the RAM cartridge 10 mounted on the tray 30, and further includes a protrusion 36a protruding in the direction of arrow C (the rear wall 18b side of the RAM cartridge 10). For this reason, the external surface force formed by the protrusion 36 and the protrusion 36a is in sliding contact with the inner wall of the recess 12 to facilitate the prevention of the RAM cartridge 10 from falling due to the engagement between the protrusion 34 and the recess 11. it can.

Here, as shown in FIG. 2A, the notch 12 a of the recess 12 is formed only on the back surface side of the RAM cartridge 10. For this reason, if the RAM cartridge 10 is installed with the front and back sides reversed, the RAM cartridge 10 rides on the protrusion 36. By utilizing this fact, it is possible to recognize an erroneous mounting state of the RAM cartridge 10.

Note that the RAM cartridge 10 shown in FIG. 2 has a configuration in which the information layer is provided only on one side of the disc housed therein, so that the notch 12a of the recess 12 is formed only on the back side. However, in the case of the configuration in which the information layers are provided on both sides of the disc accommodated therein, the cutout portion 12a is configured to penetrate in the thickness direction of the RAM cartridge 10. For this reason, the effect of the tray is the same even for a RAM cartridge compatible with a double-sided disk.

FIG. 5A is a plan view of the main part in a state where the BD cartridge 20 is mounted on the tray 40, and FIG. 5B is a cross-sectional view taken along line BB in FIG. 5A. In Figure 5B, the opposite wall 26a and wall The portion between the surface 26 b is the groove 23 of the BD cartridge 20. The tray 40 includes a panel 41 and a pressing member 42 which are urging means. In a state where the BD cartridge 20 is mounted on the tray 40, the pressing member 42 presses the BD cartridge 20 toward the front side of the tray 40 (in the direction of arrow C) by the restoring force of the panel 41.

[0040] A projection 43 is formed on the tray 40, and the projection 43 is engaged with the recess 24 of the BD cartridge 20. The protrusion 43 projects the inner surface force of the tray bottom plate 47 in the thickness direction of the BD cartridge 20 (perpendicular to the mounting surface of the tray 40).

In the example of FIG. 5A, in the protrusion 43, the inner surface of the tray side wall 46 formed on the outer periphery of the tray 40 also protrudes inside the tray 40. According to this configuration, molding is easy and the toughness can be improved because the protrusion 43 is connected to both the tray bottom plate 47 and the side wall 46 vertically. In addition, the protrusion 43 is formed with a protrusion 44 protruding in the direction substantially parallel to the transfer direction of the tray 40 (the formation direction of the groove 23 of the BD force cartridge 20) and toward the rear wall 29b of the BD cartridge 20. It has been.

As shown in FIG. 5B, when the pressing member 42 presses the BD cartridge 20, the end 43a of the protrusion 43 and the end 23a of the wall surface 26a forming the groove 23 come into contact with each other. In this state, the BD cartridge 20 is held while being positioned on the tray 40.

[0043] It should be noted that the provision of the protrusion 44 increases the width of the tip of the protrusion 43. For this reason, as shown in FIG. 5B, it is preferable to form an inclined portion at the tip of the projection 43. Thus, when the BD cartridge 20 is placed on the tray 40, the protrusion 43 and the groove 23 connected to the recess 24 are easily engaged. The same applies to the following embodiments.

[0044] FIGS. 6A and 6B are diagrams for specifically explaining this state. FIG. 6A is a perspective view of a state in which the BD cartridge 20 is placed on the tray 40. Fig. 6B is an enlarged view of part D in Fig. 6A. As shown in FIG. 6A, the BD cartridge 20 is positioned on the tray 40 with the pressing member 42 pressing the BD cartridge 20 and the protrusion 43 of the tray 40 engaged with the recess 24 of the BD cartridge 20. It is held in the state. From this fact, the effect of preventing the BD cartridge 20 from coming off when the tray 40 is placed vertically can be obtained.

Further, as shown in FIG. 6B, the convex portion 44 is formed on the BD cartridge 20 from the end surface 43b of the protruding portion 43. It extends to the rear wall 29b side. For this reason, in the state of FIG. 6B, in the thickness direction (vertical direction) of the BD cartridge 20, the convex portion 44 and the wall surface 26a face each other so as to overlap each other. According to this configuration, when the BD cartridge 20 tries to move in the direction away from the tray 40 (in the direction of arrow F), the convex portion 44 prevents the movement of the wall surface 26a.

For this reason, the convex portion 44 exhibits the action of a stopper that suppresses the movement of the BD cartridge 20 in the direction away from the tray 40. This configuration further enhances the effect of preventing the BD force cartridge 20 from coming off when the tray 40 is placed vertically.

5B and 6B illustrate a configuration in which the convex portion 44 and the wall surface 26a overlap in the vertical direction, but the convex portion 44 may be configured not to protrude from the concave portion 24. Even in this configuration, as shown in FIG. 5B, the pressing member 42 presses the BD cartridge 20 in a state where the end 23a of the portion wall surface 26a and the end 43a of the projection 43 are in contact with each other. Therefore, the effect of preventing the BD cartridge 20 from coming off can be obtained.

[0048] This configuration is less effective in preventing the BD cartridge 20 from coming off than the configuration in which the convex portion 44 and the wall surface 26a overlap, but the protruding dimension of the convex portion 44 is reduced, so that the BD cartridge 20 is placed. The operability when doing so is improved.

Here, in FIG. 6A, when the tray 40 is taken out of the casing force, the tray 40 is transferred in the direction of the arrow C. In this case, as described above, the shirter 27a is engaged with the shutter opener which is the engagement means on the housing side, and the shirters 27a and 27b are closed as the tray 40 is transferred. The engaging means is fixed at a predetermined position, and the BD cartridge 20 moves in the direction of arrow C. Therefore, a reaction force equal to the force of the engaging means acts on the BD cartridge 20 in the direction of arrow E.

[0050] The direction of arrow E is opposite to the biasing force from the pressing member 42 acting in the direction of arrow C. For this reason, as shown in FIG. 5B, a force acts in a direction away from the end flange 43a force of the end flange 23a force convex 43 of the BD cartridge 20.

[0051] The convex portion 44 extends toward the rear end side of the BD cartridge 20 from the end surface 43b of the projection portion 43 while being pressed. For this reason, when the BD cartridge 20 moves in the direction of arrow E, the overlapping range of the convex portion 44 and the wall surface 26a becomes wider, which is more advantageous for preventing the BD cartridge 20 from coming off.

[0052] On the other hand, when the tray 40 is stored in the housing, the BD cartridge 20 is separated from the engaging means. The reaction force acts in the same direction as the urging force from the pressing member 42 (arrow C direction). In this case, the end 43a of the projection 43 shown in FIG. 5B and the end 23a of the BD cartridge 20 are kept in contact with each other. For this reason, the prevention effect of the BD cartridge 20 is not particularly disadvantageous.

[0053] Next, another embodiment of the tray will be described. FIG. 7A is a plan view of the main part in a state where the BD cartridge 20 is mounted on the tray 50, and FIG. 7B is a cross-sectional view taken along the line CC of FIG. 7A. In a state where the BD cartridge 20 is mounted on the tray 50, the pressing member 42 presses the BD cartridge 20 toward the front side of the tray 50 (in the direction of arrow C) by the restoring force of the panel 41.

The tray 50 is formed with a protrusion 51 and is engaged with the recess 24 of the BD cartridge 20. The protrusion 51 also projects the mounting surface force of the tray 50 vertically.

Further, the protruding portion 51 protrudes from the inner surface of the tray side wall 53 formed on the outer peripheral portion of the tray 50 to the inside of the tray 50. According to this configuration, molding is easy and the toughness can be improved because the protrusion 51 is connected to both the tray bottom plate 54 and the side wall 53 vertically.

[0056] The protrusion 51 is formed with a protrusion 52 that protrudes in a direction substantially parallel to the transfer direction of the tray 50 (formation direction of the groove 23 of the BD cartridge 20) and toward the front wall surface 29a of the BD cartridge 20. It is.

As shown in FIG. 7B, when the pressing member 42 presses the BD cartridge 20, the end portion 51a of the convex portion 51 and the end portion 23a of the wall surface 26 forming the groove portion 23 come into contact with each other. In this state, the BD force cartridge 20 is held while being positioned on the tray 50. As a result, the effect of preventing the BD cartridge 20 from coming off when the tray 40 is placed vertically can be obtained.

FIGS. 8A and 8B are diagrams for specifically explaining this state. FIG. 8A is a perspective view of a state in which the BD cartridge 20 is placed on the tray 50. Fig. 8B is an enlarged view of part E in Fig. 8A. As shown in FIG. 8A, the BD cartridge 20 is positioned on the tray 50 in a state where the pressing member 42 presses the BD cartridge 20 and the protrusion 51 of the tray 50 and the recess 24 of the BD cartridge 20 are engaged. It is held in a state of being.

As shown in FIG. 8B, the convex portion 52 protrudes from the end surface 51a of the protruding portion 51. For this reason, In the state of FIG. 8B, in the thickness direction (vertical direction) of the BD cartridge 20, the convex portion 52 and the wall surface 26a face each other so as to overlap each other. According to this configuration, when the BD cartridge 20 tries to move in the direction away from the tray 50 (arrow F direction), the convex portion 52 prevents the wall surface 26a from moving. For this reason, the extending part 51 exhibits the action of a stopper that suppresses the movement of the BD cartridge 20 in the direction away from the tray 50. As a result, this configuration can further enhance the detachment prevention effect when the BD cartridge 20 is mounted on the tray 50 when the tray 50 is placed vertically.

7B and 8B, the protrusion 52 protrudes toward the front wall surface 29a of the BD cartridge 20. Therefore, even if the protrusion 52 has a small protruding dimension, as shown in FIG. 7B, the BD cartridge 20 is mounted on the tray 50 and the BD disk is rotated by the motor 6 (see FIG. 1). In a state where the end portion 51a of the portion 51 and the end portion 23a of the wall surface 26 are in contact with each other, the convex portion 52 and the wall surface 26a overlap in the vertical direction. For this reason, this configuration is advantageous in ensuring operability when the BD cartridge 20 is placed because the projecting dimension of the convex portion 52 can be reduced.

Here, in FIG. 8A, when taking out the tray 50 also with the casing force, the tray 50 is transferred in the direction of arrow C. In this case, similarly to the description using FIG. 6A described above, the reaction force from the engagement means on the housing side engaged with the shirt 27a acts on the BD cartridge 20 in the direction of arrow E. This arrow E direction is opposite to the urging force from the pressing member 42 acting in the arrow C direction.

Therefore, in FIG. 7B, a force acts in a direction in which the end portion 23a of the BD cartridge 20 is separated from the end portion 51a of the protrusion 51. In this case, the range in which the convex portion 52 and the wall surface 26a overlap each other is reduced, and the effect of preventing the BD cartridge 20 from coming off is reduced.

However, if the holes 25c and 25d (FIG. 3B, C) on the back surface of the BD cartridge 20 are used as positioning holes and engaged with the positioning pins provided on the tray 50, the arrow E of the BD cartridge 20 The movement in the direction is suppressed, and the decrease in the prevention effect is also suppressed.

[0064] When the RAM cartridge 10 is mounted on the tray 50 in a vertical orientation, the extending direction of the convex portion 52 is opposite to the extending direction of the convex portion 44. However, as described in the previous embodiment, Almost the same operation can be obtained, and the RAM cartridge 10 can be applied. FIG. 9 is a perspective view showing another example of the protrusion 43. In addition to the protrusion 44, the protrusion 43 includes a protrusion 45 that extends from the end surface 43 a of the protrusion 43 toward the front wall of the BD cartridge 20. According to this configuration, the convex portion 45 that has a force on the convex portion 44 suppresses the movement of the BD cartridge 20 in the direction in which the BD cartridge 20 is detached from the tray 40, so that the effect of preventing the BD cartridge 20 from coming off becomes more reliable.

It should be noted that the protrusion 43 has a wider width at the portion where the protrusion 44 and the protrusion 45 are formed.

However, when the BD cartridge 20 is attached / detached, the BD cartridge 20 is inclined, and the tip of the convex portion 43 and the inclined portions 44 and 45 are formed with inclined surfaces as shown in FIG. Thus, the detachability of the BD cartridge 20 is not particularly hindered.

FIG. 10A is a perspective view showing still another example of the protrusion 43. FIG. 10B is a plan view of a state in which the BD cartridge 20 is placed on the tray provided with the protrusions 43 in FIG. 10A. The protrusion 43 is formed with a protrusion 48 protruding in the depth direction of the groove 23 of the BD cartridge 20. By providing the convex portion 48, positioning in the direction perpendicular to the forming direction of the groove 23 of the BD cartridge 20 can be performed, and positioning is more reliable.

The protrusion 48 may be provided on the protrusion 51 shown in FIG. 7B or the protrusion 43 shown in FIG. 9 as described in the example formed on the protrusion 43 shown in FIG. 5B.

[0069] The trays 40 and 50 may have a tray configuration on which the force RAM cartridge 10 described as a tray dedicated to the BD cartridge 20 can be placed. FIG. 11 is a plan view of the main part of the tray 60 on which both the BD cartridge 20 and the RAM cartridge 10 can be placed.

[0070] The direction of arrow A indicates the transfer direction of the tray 60. The configuration of the tray 60 is different from the trays 40 and 50 for the BD force cartridge 20 described above in that a convex portion 61 is added. The convex portion 61 corresponds to the convex portion 34 in FIGS. 4A and 4B. 4A and B, the RAM cartridge 10 can be held on the tray 60 by engaging the protrusion 61 with the recess 11 of the RAM force cartridge 10.

In addition, since the inclined portion 26 is formed at the rear end portion of the BD cartridge 20, the BD cartridge 20 can be placed on the tray 60 without interfering with the convex portion 61. However, the tray 60 has a protrusion 43 corresponding to the protrusion 43 shown in FIG. 5B or the protrusion 51 shown in FIG. It is necessary to set the size so that it falls within 4B). [0072] In this case, the protruding portion may be slidably engaged with the concave portion 12. According to this configuration, the friction force caused by the sliding contact is advantageous in preventing the RAM cartridge 10 from dropping when the tray is placed vertically.

[0073] Further, a concave portion 29 is formed in the inclined surface 26 for the light protector at the rear end of the BD cartridge 20. For this reason, if the tray 60 is further provided with a convex portion 62 and engaged with the concave portion 29 of the inclined surface 26, the holding becomes more stable.

In the above-described embodiment, the BD cartridge 20 has been described on the assumption that the groove 23 and the recess 24 are formed on only one of the both side surfaces. However, the BD cartridge 20 is formed on both side surfaces. If so, a configuration corresponding to the protrusion 43 or the like may be provided on both sides. This configuration also makes the holding more stable. Further, if the recesses formed on both sides pass through the center of the disk and are arranged at a position substantially symmetrical with respect to a line parallel to the transport direction, the holding of the BD cartridge 20 is further stabilized.

Further, the force cartridge described with the protrusion 43 and the like as a protrusion for preventing the BD cartridge 20 from coming off is not limited to this, and a shape corresponding to the groove 23 and the recess 24 is formed on the side surface. If it is a thing ヽ.

Industrial applicability

[0076] As described above, according to the present invention, even in a cartridge that does not include a hole that engages with the second protrusion provided in the tray in the rear wall, the cartridge is formed in at least one of the groove forming directions. Since the protruding convex portion engages with the groove portion of the cartridge, the cartridge can be prevented from dropping when the tray is placed vertically. Therefore, the present invention is useful for a disk device used for recording / reproducing of a BD cartridge, for example.

Claims

The scope of the claims

[1] a disc storage unit for storing a disc having an information layer;

A plate portion having a window portion exposing a part of the information layer;

A pair of side walls standing vertically with respect to the plate portion;

Connecting the pair of side walls, a front wall on the side where the plate portion is cut out at the window portion, and a rear wall facing the front wall via the plate portion;

A groove formed on at least one of the side walls and recessed toward the disk storage portion; and a recess provided on the side wall formed with the groove, including a notch formed by notching the plate, and connected to the groove. A tray in which a cartridge is mounted,

With the cartridge mounted,

A tray bottom plate force that engages with the concave portion and faces the plate portion, and a protruding portion that protrudes vertically, and a protruding portion that is integral with the protruding portion and protrudes in at least one of the groove forming directions. Tray featuring

[2] The tray according to claim 1, wherein the protrusion includes a second protrusion that engages with the recess and protrudes in a depth direction of the groove.

[3] The tray is

A second disk storage portion for storing a second disk having a second information layer; a second plate portion having a second window portion exposing a part of the second information layer;

A pair of second side walls erected vertically to the second plate part;

The pair of second side walls are connected to each other, and the second window is cut out at the second window, and the second front wall and the second front wall are interposed through the second plate. A second rear wall facing each other,

A second recess formed on the second rear wall side of the second side wall, including a cutout portion formed by cutting out the second plate portion, and recessed toward the second disk storage portion side And a second cartridge provided with a pair of holes formed in the second rear wall and recessed toward the second disk storage portion,

In a state where the second cartridge is mounted, the protrusion engages with the second recess, An inner wall portion of the tray rear wall facing the second rear wall;

2. The tray according to claim 1, further comprising a second protrusion that engages with the pair of holes of the second cartridge on the inner wall of the rear wall of the tray.

[4] The protrusions are connected vertically to a tray side wall formed on the outer periphery of the tray.

The tray according to claim 1 or 3, which is V.

[5] The tray according to any one of claims 1 to 4, and

Rotating means for rotating the disk or the second disk;

Recording means for transferring user information signals to the information layer or the second information layer and Z or reproducing means;

Loading means for loading the tray between the placement position for placing the cartridge or the second cartridge on the tray and the rotational position for rotating the disk or the second disk by the rotation means. When,

A disc device comprising: an urging means for urging the cartridge or the second cartridge in the direction from the rotation position to the placement position.