JPH11144419A - Disk cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk cartridge, in which a disk medium can be reproduced by different disk drive units. SOLUTION: When a lock pawl 25 is given specified external force by the right hand and the connection of a cover 12 for the disk cartridge and the notch of a cartridge body 11 is released because the pivot in the turning operation of the cover 12 is provided by bringing the pressure section 26 of the cover 12 into contact with the counter notch of a side face on the left side in a pair of left-right two side faces crossing at right angles with each of the main surface, front end section and rear end section of a half case 14 (the cartridge body 11), the disk cartridge can be held by the left hand, and the detached cover 12 can be received easily by the right hand. Accordingly, workability at a time when an optical disk is extracted from the cartridge body are improved. Careless slipping-off from the cartridge body of the cover 12 and the falling of the optical disk on the inside can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a disk cartridge for storing an optical disk as a recording medium.

[0002]

2. Description of the Related Art More than ten years have passed since the development of compact discs (CDs) for music, and various types of read-only optical discs represented by CD-ROMs or photo CDs for personal computers have been born. Widely used for business or consumer use. Today, in addition to a read-only optical disk, a write-once optical disk that can be written only once and a recording / reproducing optical disk that can be repeatedly recorded and erased have been developed. As a result, more than ten types of optical disks have been commercialized. In general, a recording / reproducing optical disk is provided with a window portion capable of exposing the recording surface and a recording surface exposed from the window portion for the purpose of preventing dust or the like from adhering to the recording surface of the recording medium. It is housed in a cartridge having a shutter for protection.

However, it is practically impossible to prepare all the drive devices suitable for the above-mentioned various optical disks, either economically or because of restrictions on the handling of the reproducing (recording) device or securing of an installation place. It is possible.

With the spread of the recording / reproducing optical disk which is being developed today, data of a recording / reproducing optical disk on which a certain user has recorded data is used by another user who has only a reproducing apparatus for a reproduction-only optical disk. May occur.

[0005] In this case, there is a high possibility that an optical disc other than a read-only optical disc cannot be reproduced by a reproducing apparatus owned by many users who reproduce software and electronic books distributed on the market. An optical disc is required to be able to take out data even by a reproducing apparatus for a read-only optical disc.

For this reason, since the recording / reproducing optical disk is housed in a cartridge, a cartridge for accommodating the recording / reproducing optical disk is required so that data can be reproduced by a reproducing apparatus for a reproduction-only optical disk. Requires a structure that allows the optical disk to be taken out. In a structure in which the optical disk can be taken out from the cartridge, the taken out optical disk and the cartridge correspond one-to-one.

[0007]

However, the cartridge having a structure capable of taking out the optical disk described above is
At this time, it has not been proposed. Further, when the optical disk once taken out is housed in the cartridge again, recording of new data is possible, and the recording density and the recording speed to be guaranteed in that case are not standardized.

In another case, two or more optical disks are simultaneously taken out of the cartridge,
For example, if data is already recorded on the optical disk contained in one cartridge and data is not recorded on the other, the optical disk on which data is recorded is returned to another cartridge and returned to another cartridge. Thus, data can be further written to an optical disk on which data has already been recorded. This means
The cartridge and the optical disk must be accommodated in the original cartridge in a one-to-one correspondence, since this causes a problem that data already recorded is lost. An object of the present invention is to provide a disk cartridge from which a disk medium in a disk cartridge can be taken out.

[0009]

SUMMARY OF THE INVENTION The present invention has been made based on the above-mentioned problems, and has a main body having a window for storing a recording medium and exposing a part of the recording medium,
A shutter movably formed at any one of a closing position for closing the window and an opening position for opening the window, and a shutter detachable from the main body in a direction away from the shutter and the window, respectively; And a lid that allows the recording medium to be taken out of the main body. The lid has a first position for permitting recording of information on the recording medium and prohibiting recording of information. A movable projection which can be stopped at any one of the second positions, and which permits or inhibits recording of information on the recording medium; and a left and right side face of the main body in which the shutter is viewed forward and forward. And a first and second connection mechanism that enables connection and disconnection from the main body, and an external force is applied to one of the first or second connection mechanism to provide the other one. Rotating fulcrum of connection mechanism One of the connection mechanism and the movable projection, which can be rotated and separated from the main body and serve as the rotation fulcrum, are arranged close to one of the two side surfaces. The invention provides a disk cartridge characterized by the following characteristics.

Further, the present invention provides a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening position for opening the window. A shutter formed so as to be movable to any of the positions, a lid that is separable from the main body in a direction away from the shutter and the window, and allows the recording medium to be taken out of the main body, Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and And a movable projection for permitting or prohibiting the recording of the information, and a first projection and a second projection, which are provided on each of two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and separation with the main body. Second connection mechanism Having an external force applied to one of the first or second connection mechanism, the other connection mechanism can be rotated around a rotation fulcrum and separated from the main body, and the first or second connection mechanism can be separated from the main body. The connection mechanism of the first and second connection mechanisms, to which the external force is applied, is arranged close to another side of the two side faces facing the side close to the movable protrusion. The present invention provides a disk cartridge that performs

Further, the present invention accommodates a recording medium,
A main body having a window for exposing a part of the recording medium, a shutter movably formed at any one of a closed position for closing the window and an open position for opening the window, A lid that is separable from the main body in a direction away from the shutter and the window, and that allows the recording medium to be taken out of the main body, wherein the lid is configured to store information on the recording medium. A movable projection which can be stopped at a first position or a second position for permitting recording of information and prohibiting recording of information, and permitting or prohibiting recording of information on the recording medium; And a first and a second connection mechanism provided on each of the two left and right side surfaces of the main body when viewed from the front front, and enabling connection and disconnection with the main body, One of the two attachment mechanisms When the external force is applied to the main body, the movable projection can be rotated from the other main body as a rotation fulcrum and can be separated from the main body, and the movable protrusion is the first and second of the two side surfaces. It is an object of the present invention to provide a disk cartridge characterized in that it is arranged close to a side face of the connection mechanism that is close to the connection mechanism to which the external force is applied, and is arranged close to another side face facing the connection mechanism.

Still further, according to the present invention, there is provided a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening for opening the window. A shutter movably formed at any one of the positions, and a lid that is separable from the main body in a direction away from the shutter and the window, and enables the recording medium to be taken out of the main body. Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable protrusion for permitting or prohibiting recording of information to the main body, and a movable protrusion provided on the left side of the two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and disconnection with the main body. And the first connection And a second connection mechanism provided on the right side of the two right and left sides of the main body when the shutter is viewed from the front and front, and capable of being connected to and separated from the main body. When an external force is applied to one of the first and second connection mechanisms, the other connection mechanism can be rotated and used as a rotation fulcrum and can be separated from the main body, and the rotation fulcrum can be used. One of the connection mechanisms and the movable projection are arranged close to one of the two side surfaces.

Still further, according to the present invention, there is provided a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening for opening the window. A shutter movably formed at any one of the positions, and a lid that is separable from the main body in a direction away from the shutter and the window, and enables the recording medium to be taken out of the main body. Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable protrusion for permitting or prohibiting recording of information to the main body, and a movable protrusion provided on the left side of the two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and disconnection with the main body. And the first connection And a second connection mechanism provided on the right side of the two right and left sides of the main body when the shutter is viewed from the front and front, and capable of being connected to and separated from the main body. The external force is applied to the second connection mechanism so that the second connection mechanism can be rotated from the first connection mechanism as a rotation fulcrum and can be separated from the main body. A disc cartridge characterized by being arranged close to a side surface close to the side.

Still further, according to the present invention, there is provided a main body having a window for storing a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening for opening the window. A shutter movably formed at any one of the positions, and a lid that is separable from the main body in a direction away from the shutter and the window, and enables the recording medium to be taken out of the main body. Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable protrusion for permitting or prohibiting recording of information to the main body, and a movable protrusion provided on the left side of the two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and disconnection with the main body. And the first connection And a second connection mechanism provided on the right side of the two right and left sides of the main body when the shutter is viewed from the front and front, and capable of being connected to and separated from the main body. Then, when an external force is applied to the second connection mechanism, the second connection mechanism is rotatable about the first connection mechanism as a rotation fulcrum and can be separated from the main body. The disk cartridge is provided in the vicinity of the side surface on the side opposite to the side on which the disk cartridge is provided.

Still further, the present invention provides a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening for opening the window. A shutter movably formed at any one of the positions, and a lid that is separable from the main body in a direction away from the shutter and the window, and enables the recording medium to be taken out of the main body. Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable protrusion for permitting or prohibiting recording of information to the main body, and a movable protrusion provided on the left side of the two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and disconnection with the main body And the first connection And a second connection mechanism provided on the right side of the two right and left sides of the main body when the shutter is viewed from the front and front, and capable of being connected to and separated from the main body. The external force is applied to the second connection mechanism so that the second connection mechanism can be rotated from the first connection mechanism as a rotation fulcrum and can be separated from the main body. When the lid is pivotally separated from the main body with one of the connection mechanisms as a pivot, the lid is arranged close to the side of the two sides that has a smaller amount of rotation. Is provided.

Still further, according to the present invention, there is provided a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening for opening the window. A shutter movably formed at any one of the positions, and a lid that is separable from the main body in a direction away from the shutter and the window, and enables the recording medium to be taken out of the main body. Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable protrusion for permitting or prohibiting the recording of information to the main body, and a first protrusion provided on each of two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and separation with the main body. And the second contact Having a mechanism, the external force is applied to one of the first or second connection mechanism, the other connection mechanism can be rotated as a rotation fulcrum and separated from the main body, The movable projection is configured such that when the lid is rotated and separated from the main body with one of the first and second connection mechanisms as a rotation fulcrum, a rotation amount of the two side surfaces is larger. It is an object of the present invention to provide a disk cartridge which is arranged close to a side surface opposite to the side surface.

Still further, according to the present invention, there is provided a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and an opening for opening the window. A shutter movably formed at any one of the positions, and a lid that is separable from the main body in a direction away from the shutter and the window, and enables the recording medium to be taken out of the main body. Wherein the lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable protrusion for permitting or prohibiting recording of information to the main body, and a movable protrusion provided on the left side of the two right and left sides of the main body when the shutter is viewed from the front and front, to enable connection and disconnection with the main body. And the first connection And a second connection mechanism provided on the right side of the two right and left sides of the main body when the shutter is viewed from the front and front, and capable of being connected to and separated from the main body. Then, when an external force is applied to one of the first or second connection mechanism, the other connection mechanism can be rotated around a rotation fulcrum and can be separated from the main body, and the movable protrusion is A disk cartridge is provided which is arranged close to the side of the side where the first connection mechanism is provided, and wherein the external force is applied to the second connection mechanism.

Still further, a disk cartridge according to the present invention includes a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and a window. A shutter movably formed at any one of an open position to be opened, and a shutter which can be separated from the main body in a direction away from the shutter and the window, respectively, so that the recording medium can be taken out of the main body. A lid portion, wherein the lid portion can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable projection for permitting or prohibiting recording of information on the recording medium; and a movable projection provided on the left side of the two left and right sides of the main body when the shutter is viewed from the front and forward. Separation A first connection mechanism that enables connection, and a second connection mechanism that is provided on the right side surface of the two left and right side surfaces of the main body when the shutter is viewed from the front front, and that enables connection and disconnection with the main body. And the first connection mechanism is located at a position farthest from the shutter on one of the two side surfaces.

Still further, a disk cartridge according to the present invention includes a main body having a window for accommodating a recording medium and exposing a part of the recording medium, a closing position for closing the window, and the window. A shutter movably formed at any one of an open position to be opened, and a shutter which can be separated from the main body in a direction away from the shutter and the window, respectively, so that the recording medium can be taken out of the main body. A lid portion, wherein the lid portion can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, A movable projection for permitting or prohibiting recording of information on the recording medium; and a movable projection provided on the left side of the two left and right sides of the main body when the shutter is viewed from the front and forward. Separation A first connection mechanism that enables connection, and a second connection mechanism that is provided on the right side surface of the two left and right side surfaces of the main body when the shutter is viewed from the front front, and that enables connection and disconnection with the main body. The second connection mechanism is orthogonal to each of the two side surfaces, and when defining a plurality of line segments connecting the two side surfaces, the first connection mechanism is positioned The shutter is provided at a position defined by an arbitrary line segment located between the line segment to be inserted and the line segment at which the front end face of the shutter is located, and one of the two side surfaces.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, the disk cartridge 10 has a cartridge body 11 for storing the optical disk 1 as a recording medium (not described in detail) and a lid 12 detachably formed on the cartridge body 11. . The disk cartridge 10 shown in FIGS. 1 and 2 mainly stores a single-sided optical disk capable of recording and reproducing.

The lid 12 has a rear end face 11b facing the front end face 11a facing the insertion direction A of the cartridge body 11.
It is provided in. The cartridge body 11 has upper and lower surfaces, that is, first and second half cases 13,
14 are connected to each other. The lid 12 and the half cases 13 and 14 are each colored with a specific color assigned to a predetermined quantity, which is associated with or associated with a color provided on a display surface (not shown) of the optical disc 1.

At a predetermined position on the outer surface provided by at least one or both of the half cases 13 and 14, the type or serial number or identification symbol of the optical disk 1 contained in the cartridge 10 and handling precautions A label area 10a that can be used to display items such as a message indicating that the optical disc 1 can be taken out and that initial performance may not be continued when the optical disc 1 is taken out is provided.
The label areas 10a may be provided at two or more locations as needed. As is clear from the drawings, the label area 10a is provided on the half case 13 whose outer surface faces upward in the disk cartridge 10 shown in FIGS.

When the shutter described below is opened, the cartridge body 11 exposes a part of the optical disk 1 housed therein, so that an optical head device (not shown) of a recording / reproducing device (not shown) can access. Window 11c. The window 11c has a shutter guide area of a predetermined size including a central portion of the half case 13 (14) recessed by a predetermined amount from the outermost surface (outer surface) for guiding a shutter described below. 13a (14a). The window 11c is shielded when not in use by the shutter 15 that is moved along the shutter guide area 13a (14a).

The rear end surface 1 of the cartridge body 11 has two side surfaces orthogonal to the front end surface 11a and the rear end surface 11b, respectively.
1b, a notch 11d for holding each of a lock claw and a pressurizing portion, which will be described later in detail with reference to FIG. 3, provided integrally with the lid 12 used to connect the lid 12 and the cartridge body 11, A rotation fulcrum (opposed notch) 11e is provided. An insertion slot 11f used as a guide groove when the cartridge main body 11 (disk cartridge 10) is inserted into a recording / reproducing device (not shown) is provided near the front end surface 11a of the surface of the cartridge main body 11 where the notch 11d is provided. Are formed. 4 is provided on the front end surface 11a side of the cartridge body 11.
The spring accommodating portion 11g into which the shutter spring 16 described with reference to FIG.
An opening 11h for inserting the disc cartridge 10 is provided on both sides perpendicular to the front end face 11a. The disk cartridge 10 is temporarily loaded at the time of automatic loading (replacement) by a recording / reproducing apparatus with an automatic loading and automatic exchange (autoloading) mechanism (not shown). Are provided with a pair of detents 11k and 11l which are used for positioning. The detents 11k and 11l are formed from the half case 14 to the half case 13,
When the cartridge body 11 is viewed from the half case 13, the cartridge body 11 is not penetrated.

The rear end surface 1 of the cartridge body 11 has two side surfaces orthogonal to the front end surface 11a and the rear end surface 11b, respectively.
In the vicinity of the notch 11d closer to 1b and the rotation fulcrum 11e, it is held by a gripper (not shown) of the recording / reproducing device (not shown) at the time of automatic loading (replacement) by a recording / reproducing device having an automatic loading and automatic exchange (autoloading) mechanism (not shown). A pair of gripper slots 11i and 11j are provided. In addition, each gripper slot 11i, 11j
The cartridge body 11 is formed from the half case 14 to the half case 13, and is not penetrated when the cartridge body 11 is viewed from the half case 13. In addition, the rotation fulcrum 11e
Is perpendicular to the outer surface of the half case 13 in which the left side of the cartridge body 11, that is, the disc cartridge 10 is directed upward from the cartridge body 11 in a state where the direction in which the shutter 15 is moved is right, when viewed from a plane. The gripper slot 1 is located near the position farthest from the shutter 15 on the left side of the two left and right sides.
1i is located on the rear end side. On the other hand, the notch 11d is located on the right side of the two left and right sides orthogonal to the outer surface of the half case 13, and
1j is located closer to the shutter 15.

As will be described in detail later with reference to FIG. 4, the shutter 15 is constantly urged toward a position where the window 11c is shielded by two shutter springs 16 located on both sides of the window 11c. At the same time, it is formed so as to be movable to an open position shown in FIG. In addition, the shutter 15 is a shutter support that projects a predetermined length toward the window 11c from a predetermined position near the rear end face 11b and substantially at the center in the left-right direction of each half case, that is, the cartridge body 11 in FIG. Projections 13c of each half case formed so as to cover a free end (not shown) of the shutter 15 when viewed from a direction orthogonal to the label area 10a.
(14c) allows the shutter guide area 13a (14
a), the shutter guide area 1
Undesirably turning or lifting from 3a (14a) is prevented.

At the center of the optical disk 1 housed in the cartridge body 11, a clamp area 3 connected to a spindle motor (not shown) of a recording / reproducing apparatus (not shown) is provided.
Is provided. The clamp area 3 and a part of the optical disc 1 are, as shown in FIG.
Is exposed through the window 11c.

The projection 13 is located near the rear end face 11b of each half case 13 (14) of the cartridge body 11.
The region closer to the rear end surface 11b than c is formed as a thin portion 13d (14d) having a small thickness, as will be described in detail with reference to FIGS. I have. A predetermined position in the left and right direction of the cartridge body 11 near the rear end surface 11b of the thin portion 13d is
For example, a rectangular cutout portion 13e for receiving a handle portion of the lid 12 described below from the cartridge body 11 is provided.

The thin portion 13d is also provided with an opening 13f for enabling the write protector of the lid 12 to be described below with reference to FIG. 3 and a disk take-out display portion 13h to be described later with reference to FIG. I have.

Next, the features of the lid 12 will be described in detail with reference to FIG. As shown in FIG. 3, the lid 12 has a movable projection used as a write protector, which will be described later with reference to FIG. 7, for transmitting the prohibition and permission of writing information to the optical disc 1 to a recording / reproducing device (not shown). 20 are formed. When the movable projection 20 is located at a position where writing of information described in detail later with reference to FIG. 7 is prohibited, a first line connecting the centers of a location hole 21 and an alignment hole 22 described below. Min L
1 on a third line segment L3 defined in parallel with L1 at a predetermined distance D1, perpendicular to the first line segment L1, and passing through the center of the disc takeout display hole 23. Line segment L
2 at a predetermined distance D2.

The lid 12 is brought into contact with a predetermined area provided on the recording / reproducing apparatus side when the cartridge 10 is loaded into a recording / reproducing apparatus (not shown) so that the cartridge 10 is moved to a predetermined position of the recording / reproducing apparatus. A location hole 21 for controlling the position of the cartridge 10 to be located;
Further, an alignment hole 22 for regulating the position of the cartridge 10 so that the cartridge 10 in the recording / reproducing apparatus is located at a predetermined position of the recording / reproducing apparatus together with the location hole 21 is opened.

The lid 12 is further provided with a disc ejection indicator hole 23 indicating that the disc has been released from the cartridge body 11 at least once, that is, the optical disc 1 has been taken out of the disc cartridge 10.

Further, the lid 12 is provided with a recording / reproducing apparatus having an auto-loading mechanism so that the disk cartridge 10 can be automatically loaded by a recording / reproducing apparatus having an automatic loading mechanism (not shown). A pair of gripper slots 24a and 24b that are connected to two grippers that are not formed are formed.

The lid 12 has a lock claw 25 and a lock claw 2 for locking the lid 12 to the cartridge body 11.
5 and a predetermined pressure toward the lock claw 2.
When the cover 5 is released, a pressurizing portion 26 is formed to prevent the cover 12 from being instantaneously detached (from the cartridge body 11). The pressurizing section 26 is used for the cartridge body 1.
By urging the lock claw 25 toward the first notch 11d, the lock claw 25
When the is removed, the lid 12 can be prevented from rapidly separating (falling) from the cartridge body 11. Immediately after the lock claw 25 is released from the notch 11d by an external force, the pressing portion 26 rotates the lid 12 by a predetermined angle around the contact portion that contacts the rotation fulcrum 11e. The contact with the pivot 11e is released. In this case, when the lid 12 is rotated by approximately 3 ° (that is, the lid 12 is opened from a state where the lid 12 is connected to the cartridge body 11), the pressurizing unit 26 is separated from the rotation fulcrum 11e (as a result, 3.) The lid 12 is separated from the cartridge body 11.

The cover 12 also has a structure shown in FIG. 9 for preventing the optical disk 1 housed in the cartridge 10 from undesirably dropping (falling) when the cover 12 is detached from the cartridge body 11. A plurality of fins 27a, 27b, 27c,
Are integrally formed.

The cartridge body 11 is positioned at one end of the lid 12 at a predetermined position in an area (ridge) for providing the rear end portion 11b of the cartridge body 11 when the lid 12 is combined with the cartridge body 11. The lids 12 correspond to the notches 13e, 14e provided in the thin portions 13d, 14d of the half cases 13, 14, respectively.
The handle 30 is formed to be thicker than the main body. Note that the handle portion 30 has a recess having an arbitrary shape to which a user's nail can be hooked so that the lid 12 can be easily removed from the cartridge body 11.

At a predetermined position of the lid 12, an identifier display area 31 is formed in which a serial number or an identification symbol can be presented by engraving, molding or labeling. Note that the identifier display area 31 may be divided into two or more places as necessary.

The lid 12, like the cartridge body 11, is associated with a color of a display surface of the optical disc 1 described later, and is colored, for example, in a predetermined color assigned to each specific quantity. Therefore, each of the optical disk 1, the cartridge body 11 (half cases 13, 14) and the lid 12 is packaged based on a plurality of combination colors specified by a predetermined permutation or combination. For this reason, for example, even if the optical disk 1 is simultaneously removed from the plurality of cartridges 10, it can be stored in the original cartridge.

In the lid 12, a movable projection (write protector) 20 is positioned in the left-right direction when viewed from a plane with the rear end face farthest from the shutter 15 as the front face when inserted into the cartridge body 11. An opposing lock claw (pressing portion) 26 is provided on the side close to the position where the shutter is positioned, that is, on the left side. On the other hand, a lock claw 25 is formed on the right side in the left-right direction. The lock claw 25 is positioned closer to the shutter 15 than the opposing lock claw 26 in a direction orthogonal to the left-right direction.
Further, each of the opposing lock claw 26 and the lock claw 25
It is offset with respect to the gripper slots 24a, 24b in a direction perpendicular to the left-right direction.

FIG. 4 is a schematic diagram showing a state in which the disk cartridge 10 shown in FIGS. 1 and 2 is separated by using first and second half cases 13 and 14 for providing a cartridge body 11 and a shutter 15 as a unit. FIG.

As shown in FIG. 4, the inner surface of the first and second half cases 13 and 14 has a front end portion 11a (in a state of being joined as the cartridge body 11) of an outer edge of each half case. And the thin portion 13d described above,
A rib 13m of a predetermined height over almost the entire circumference except for 14d
(It is difficult to see because it is the back direction, see FIG. 5), 14 m
Are formed. The ribs 13m and 14m constitute side walls and a structural wall of the cartridge main body 11, and prevent the recording surfaces of the optical disks housed therein from coming into contact with the half cases 13 and 14, respectively.

Further, on the inner surfaces of the half cases 13 and 14, further inside the outer edge portions where the ribs 13m and 14m are formed, the positions of the optical disks 1 housed in the cartridges 10 are regulated. The annular ribs 13n and 14n are formed integrally.

Further, in the half cases 13 and 14, the front end faces 11 of the openings 13b and 14b defining the window 11c in a state where the cartridge body 11 is assembled.
The ribs 13m and 14m and the annular ribs 13n and 14n
In addition, bridge portions 13o and 14o that define a range in which the shutter spring 16 can move are provided. The bridge portions 13o and 14o form a pair of spring housing portions 11f for housing the springs 16 already described in FIGS. The bridge portions 13o and 14o are formed by ribs 13m and 14m and annular ribs 13n and 14n.
Are also used to secure the strength of the cartridge body 11 formed by connecting the.

The area corresponding to the spring accommodating portion 11f has an opening 13g formed near the front end face 11a of the cartridge body 11, and after the half cases 13 and 14 are connected, the spring 16 is moved to the front end. It is formed so that it can be inserted from the surface 11a side. The spring 16 is held by a spring receiving portion (not shown) provided at a predetermined position of each of the spring housing portion 11f and the shutter 15 provided by joining the respective half cases, so that the spring 16 protrudes from the cartridge body 11. Instead, the shutter 15 is always located at a predetermined position in the spring accommodating portion 11f, and constantly presses the shutter 15 toward the shutter shielding position.

FIG. 5 is a schematic plan view for explaining features inside the half case 13. As shown in FIG. 5, the first half case 13 has a thin portion 13d already described,
The notch 13e and the opening 13 for applying a force in a predetermined direction from the outside so that the movable projection 20 of the lid 12 can be switched between a first position and a second position described later with reference to FIG.
f, cooperating with the disc removal indication hole 23 of the lid 12 to indicate that the optical disc 1 has been removed from the disc cartridge 10 (the lid 12 has been removed from the cartridge main body 11). A disc take-out display mechanism 13h that is presented so as to be detectable by a take-out detector, and a bridge section 13 that provides a spring accommodating section 11f in an assembled state as the cartridge body 11.
o, a rib 13m and an annular rib 13n, a pair of left and right recesses (non-penetrating) 13s and 13t corresponding to the gripper slots 24a and 24b, and a notch 11d and a rotation fulcrum 1
It has side walls 13p and 13q that provide 1e. The surface facing outward when assembled as the cartridge body 11, that is, the surface shown as the back surface in FIG. 5, is provided with a concave portion 13r that provides a label area 10a when assembled as the disk cartridge 10. .

Also, the disk removal display mechanism 13h
Is a display mechanism 13 as described later with reference to FIG.
When a predetermined external force is applied to the central concave portion from the direction of arrow D, the external force is discharged from the display portion 14h of the half case 14 to the outside through the disk removal display hole 23 of the lid 12.
Further, the opening 13 f is provided in the location hole 21 of the lid 12.
And the first connecting the centers of the alignment holes 22
A second line segment L2 orthogonal to the line segment L1 and passing through the center of the disc ejection display hole 23 (disc ejection indicator 13h).
A region where a predetermined state is detected by a detector of a recording / reproducing device (not shown) located at a distance D1 from the first line segment L1 above, that is, a region 14x shown in the half case 14 of FIG.
Defined in parallel with the first line segment L1 through the center of
On the line segment L3, the thin portion 13d is cut out in such a shape that the second position of the movable projection 20 of the lid 12 can be located at a distance D2 from the second line segment L2. In addition,
It goes without saying that each line segment has the same relationship as the line segments L1 to L3 in the lid 12 already described with reference to FIG.

FIG. 6 is a schematic plan view for explaining features inside the half case 14. As shown in FIG. 6, the second half case 14 includes the thin portion 14d already described,
The notch 14e and the opening that does not prevent the movable protrusion 20 from moving to an arbitrary position so that the movable protrusion 20 of the lid 12 can be switched between a first position and a second position described later with reference to FIG. (Notch) 14f, bridge portion 14o providing spring accommodating portion 11f in an assembled state as cartridge body 11, opening 141 allowing rib 16 to be inserted into spring accommodating portion 11f, rib 14m, and annular rib 14n. And the location hole 21 and the alignment hole 2 by being combined with the lid 12 shown in FIG.
2, the optical disk 1 is removed from the disk cartridge 10 in cooperation with the through holes 14g and 14k that provide openings that do not interfere with the holes 21 and 22, and the disk removal indicator hole 23 of the lid 12. The disc removal display unit (opening) 14 that presents the fact that the lid 12 has been removed from the cartridge body 11 by a disc removal detector (not shown) of the recording / reproducing device (not shown) so as to be detectable.
h, a pair of left and right notches 14i and 14j corresponding to the gripper slots 24a and 24b, and detents 11i and 1
1j, a pair of left and right cutouts 14s and 14t,
5 and the notch 11d of the cartridge body 11 and the rotation fulcrum 1
It has side walls 14p and 14q that provide 1e.

The opening 14f is orthogonal to the first line segment L1 connecting the centers of the location hole 21 and the alignment hole 22 of the lid 12, and is provided with a disc takeout display hole 23 (the disc takeout display mechanism 1 of the half case 13).
3h) on the second line segment L2 passing through the center of the first line segment L1
A third line segment L defined in parallel with the first line segment L1 through the center of the area 14x in which a predetermined state is detected by a detector of a recording / reproducing device (not shown) located at a distance D1 from the distance
3, a shape that allows the second position of the movable projection 20 of the lid 12 to be located at a distance D2 from the second line segment L2,
The thin portion 14d is notched. Note that the recording / reproducing device (not shown) is provided on the third line segment L3 in an axially symmetric manner with the second line segment L2 as a symmetry axis with respect to the position where the second position of the movable projection 20 of the lid 12 is located. An area 14y in which a predetermined state is detected by the detector is secured. Each of the line segments has the same relationship as the line segments L1 to L3 of the lid 12 already described with reference to FIG.

FIG. 7 is a schematic diagram illustrating a write protector formed integrally with the lid 12 shown in FIG. Although FIG. 7B is a partial cross-sectional view taken along line BB in FIG. 3, it goes without saying that it corresponds to a partially enlarged cross-section of the write protector in FIG. 7A. Nor.

Write protector, ie, movable projection 20
As shown in FIG. 7A, the cartridge body 11
The first position 20a for transmitting the prohibition or permission of writing data to the optical disk 1 accommodated in the (disk cartridge 10) to a write detection device (not shown) of a recording / reproducing device (not shown) and writing of data to the optical disk 1 Second position 20b for transmitting permission to write detection device
Either one of them is formed so as to be stationary. Also, as shown in FIG. 7B, when the half case 14 is positioned on the optical head device (not shown) of the recording / reproducing device (not shown), the write protector 20 has an arrow from the half case 13 side. When a load indicated by D is applied to the concave portion 20d, the protrusion that enables smooth movement between the first position 20a and the second position 20b and prevents the write protector 20 from moving undesirably. 20c
Are formed integrally. In addition, the protrusion 20c is
The first position 20a or the second position is formed by contacting a thin stopper 12b slightly protruding from an opening 12a which is a main body portion of the light protector 20 and defining an area where the write protector 20 can move. It is held at one of the positions 20b. Further, the disk cartridge 1 is attached to the arm 20e.
The first position 20a for presenting write inhibition during non-operation so that the write protector 20 does not present write permission even if 0 is dropped or an undesired vibration is given. Are provided and the shape and elasticity can be set as the initial position. Stopper 1
2b is formed so as to compete with the protrusion 20c of the write protector 20 when viewed from a direction perpendicular to the recording surface of the optical disk housed in the cartridge (see FIG. 7A). In the direction (see FIG. 7B), the protrusion 20 is formed in a region corresponding to the first position 20a, that is, a portion thinner than the main body of the lid 12.
When the write protector 20 indicates permission to record data, the write protector 20 is slid to the end (the second position 20b) of the stopper 12b. The second position 20b is located between the location hole 21 of the lid 12 and the alignment hole 2 as described above with reference to FIGS.
2 is perpendicular to the first line segment L1 connecting the centers of the discs 2 and the disc ejection display hole 23 (the disc ejection display section 14).
h) a third line L2 that is further orthogonal to the second line segment L2 passing through the center
Is set at a position where the distance from the second line segment L2 is D2.

FIG. 8 is a schematic view showing an example of the disk removal display section. FIG. 8 (a) is a schematic plan view of the disk removal display section, and FIG. 8 (b) is a side view of FIG. 8 (a). It is.

As is apparent from FIG. 8, the disc take-out display mechanism 13h is moved from the cartridge body 11 to the lid 12
Half case 1 to separate the
When an external force in the direction of the arrow D is applied to the disc take-out display mechanism 13h of FIG. 3, the display section 13h is cut and separated, so that the concave portion (disc (The takeout display hole 23 itself). Therefore, the disc removal indication hole 23 of the lid 12
In response to detection by a contact-type detection mechanism (not shown) from the half case 14 side, the cartridge 1
2 indicates that the disk has been separated (the disk has been removed). Note that, even when the lid 12 is inserted (set) again, the disc removal display hole 23 becomes an opening.
Incidentally, the disc take-out display mechanism 13h is formed in a half case 13 which is turned upward when the disc cartridge 10 is loaded into a recording / reproducing device (not shown). The half case 13 has a label area 10a (13
Since r) is also formed, it is possible to apply an external force for taking out the target optical disc 1 while viewing the label (not shown) located in the label area 10a when the disc take-out display mechanism 13h is opened. Become. This can reduce undesired removal of the optical disk from an unintended disk cartridge.

FIG. 9 shows the lid 12 shown in FIG.
It is a schematic sectional drawing which shows the state cut | disconnected by. As shown in FIG. 9, a plurality of lids 12 are arranged so as to be substantially parallel to the recording surface of the optical disc 1 in the cartridge main body 11 while being positioned between the cartridge main body 11, that is, the cases 13 and 14. Of the fall prevention fins 27a, 27b,
27c,...

The fall prevention fins 27a, 27b, 27c,
Are arranged so that the recording surface of the optical disk is sandwiched between adjacent fins. Each of the fall prevention fins 27a, 27b, 27c,... Is provided with a hole, a notch or a claw provided in each part of the lid 12, that is, the movable projection 20, the location hole 21, the alignment hole 22, and the disk takeout display hole. 23, the gripper slots 24a and 24b, the lock claw 25, the pressurizing portion 26, the data display windows 28 and 29, and the notch of the entire area (body portion) of the cover 12 (not shown in detail) can be machined from the same drawing direction. , The amount of protrusion, the draft angle, or the distance between them is set.

FIG. 10 is a schematic diagram for explaining the operation of taking out the lid shown in FIG. 3 and the shape of the opening for the write protector provided in the half case. The state where the case 13 is removed is shown.

According to FIG. 10, the pivoting projection of the lid 12, that is, the write protector 20, as described above with reference to FIG. It is rotated on an arc of radius R1 with the base as a rotation fulcrum.

On the other hand, the lid 12 pivots on an arc of radius R2 with a contact portion between the opposing lock claw (pressing portion) 26 and the pivot point (opposite notch) 11e of the cartridge body 11 as a pivot point. Is done.

Thus, the projection (tab) including the concave portion 20d of the write protector 20 is rotated on an arc of radius R3 concentrically with the radius R2. Therefore, half case 1
4 (13) is a composite curve (trajectory) G in which at least the curve defined by the radius R1 and the curve defined by the radius R3 are combined. Is represented by The composite curve G has an inflection point.

Further, as shown in FIG.
Reference numeral 6 denotes a left side surface of a pair of left and right side surfaces orthogonal to the main surface of the half case 14 (cartridge main body 11), a front end (omitted in FIG. 10), and a rear end into which the lid 12 is inserted. That is, since the contact with the opposing notch 11 e of the cartridge body 11 provides a fulcrum for the rotation of the lid 12, when the lid 12 is released from the connection with the cartridge body 11, the lock is locked. The side of the claw 25 is largely rotated.

This means that the user can, for example,
The disk cartridge 10 can be held in the left hand when the lock is released (the connection between the lid 12 and the cartridge body 11 is released) by applying a predetermined external force with the right hand to the side 5 (the right side surface in FIG. 10). And in this case,
The lid 12 detached from the disk cartridge 10 (cartridge main body 11) can be easily received by the right hand, and workability when removing the optical disk 1 from the cartridge main body 11 is improved. In addition, the lid 12 is accidentally detached from the cartridge body 11 and the
Can be prevented from falling.

The position where the pressing portion 26 is provided on one of the two side surfaces can be expressed as the position farthest from the shutter 15. The relationship between any one of the two left and right sides of the cartridge body 11 provided with the notch 11d to which the lock claw 25 is connected and the position where the write protector 20 is provided is orthogonal to each of the two sides. When defining a plurality of segments connecting the two side surfaces, the segments are located between the segment where the opposing notch 11 e is located and the segment where the front end 11 a of the cartridge body 11 is located. Any line segment and one of the two sides
It can be expressed as a position defined by the side surface.

[0062]

As described above, according to the present invention,
An optical disk as a recording medium is housed in a disk cartridge having an opening / closing mechanism. An optical disk can write data in a state housed in a cartridge,
Moreover, by taking out the cartridge, data can be reproduced by a read-only disk device. As a result, data on an optical disk on which data has been written by a certain user can be shared by users having only a read-only disk device.

In addition, the above-described disk cartridge
Since it has a display mechanism for displaying that the optical disk housed therein has been taken out at least once, additional data can be written to the optical disc taken out once, or already recorded data can be erased to create a new one. It is possible to notify the user of a caution regarding a reduction in speed or the like that may occur when recording data.

The optical disk which can be taken out has a visual information recording area in which the recording surface is limited to only one surface but has a visual information recording area on the other surface where the user can arbitrarily record visual information. Since the user can display arbitrary identification information in the area, it is possible to easily identify from which cartridge the optical disk taken out has been taken out.

Further, the pressurizing portion of the lid is provided on the left side of the pair of left and right sides orthogonal to the main surface, the front end and the rear end into which the lid is inserted, that is, of the cartridge body. By providing a fulcrum of rotation in the pivoting movement of the lid by being brought into contact with the opposing notch,
When the lid is released from the connection with the cartridge main body, the side of the lock claw is largely rotated, and the user releases the lock by, for example, applying a predetermined external force to the lock claw with the right hand (the lid and the cartridge main body are separated from each other). Release the connection), the disc cartridge can be held in the left hand, whereby the lid detached from the disc cartridge (cartridge body) can be easily received by the right hand, and the optical disc can be removed from the cartridge body. The workability at the time of taking out is improved. This can prevent the lid from being inadvertently detached from the cartridge body and the internal optical disk from falling.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a disk cartridge to which an embodiment of the present invention is applied.

FIG. 2 is a schematic diagram showing a state in which a shutter of the disk cartridge shown in FIG. 1 is opened.

FIG. 3 is a schematic diagram showing an example of a lid of the disc cartridge shown in FIGS. 1 and 2;

FIG. 4 is a schematic diagram showing a state in which the disk cartridge shown in FIGS. 1 and 2 is separated into two half cases, a lid, and a shutter which provide a cartridge body;

FIG. 5 is a schematic plan view for explaining features inside one half case of the disk cartridge shown in FIGS. 1 and 2;

FIG. 6 is a schematic plan view for explaining features inside the half case different from the half case shown in FIG. 5 of the disk cartridge shown in FIGS. 1 and 2;

FIG. 7 is a schematic diagram illustrating a write protector formed integrally with the lid shown in FIG. 3;

FIG. 8 is a schematic diagram showing an example of a disk removal display unit provided in two half cases constituting the disk cartridge shown in FIGS. 1 and 2;

FIG. 9 is a schematic sectional view showing a state where the lid shown in FIG. 3 is cut along line BB.

FIG. 10 is a schematic diagram illustrating the operation of taking out the lid shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Optical disk, 2 ... Disk medium, 3 ... Hub, 4 ... Reflective layer, 5 ... Phase change type recording layer, 6 ... Protective layer, 7 ... Visual information display area, 8 ... Index area, 10 ... Disk cartridge, 10a ... Label area, 10b Message area, 11 Cartridge body, 11c Window, 11d Notch, 11e Rotating fulcrum, 12 Lid, 13 Half case, 13p Side wall, 13q Side wall, 14 Half Case, 14p: Side wall portion, 14q: Side wall portion, 15: Shutter, 16: Spring, 20: Cartridge body, 21: Location hole, 22: Alignment hole, 23: Disk ejection display hole, 25: Lock claw, 26: Addition Pressure part, 27a: Fall prevention mechanism, 27b: Fall prevention mechanism, 27c: Fall prevention mechanism, 30: Take Handle part, 31 ... identifier display area.

Claims (11)

[Claims] 1. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. And a first and a second connection provided on each of two right and left sides of the main body when the shutter is viewed from the front and front, and enabling connection and separation with the main body. And a mechanism, Alternatively, when an external force is applied to one of the second connection mechanisms, the other connection mechanism can be rotated about a rotation fulcrum and can be separated from the main body, and can be the rotation fulcrum. And the movable projection is arranged close to one of the two side surfaces. 2. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. And a first and a second connection provided on each of two right and left sides of the main body when the shutter is viewed from the front and front, and enabling connection and separation with the main body. And a mechanism, Alternatively, when an external force is applied to one of the second connection mechanisms, the other connection mechanism can be rotated about a rotation fulcrum and can be separated from the main body, and the first and second connection mechanisms can be separated. Wherein the connection mechanism to which the external force is applied is arranged close to the other side of the two side faces facing the movable projection. 3. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. And a first and a second connection provided on each of two right and left sides of the main body when the shutter is viewed from the front and front, and enabling connection and separation with the main body. And a mechanism, Alternatively, when an external force is applied to one of the second connection mechanisms, the other connection mechanism can rotate about the other connection mechanism as a rotation fulcrum and can be separated from the main body. A disk cartridge arranged near one of the first and second connection mechanisms that is close to the connection mechanism to which the external force is applied, and the other side that is opposed to the one of the first and second connection mechanisms. 4. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and any one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. A movable protrusion for permitting or prohibiting the shutter, and a first protrusion which is provided on a left side surface of two left and right side surfaces of the main body when the shutter is viewed from the front front, and enables connection and separation with the main body. Connecting mechanism and the shutter A second connection mechanism provided on the right side surface of the two left and right side surfaces of the main body when viewed from the front, and enabling connection and disconnection with the main body; When an external force is applied to one of the second connection mechanisms, the other connection mechanism can rotate as a rotation fulcrum and can be separated from the main body, and can be separated from the main body. A disk cartridge, wherein one of the movable projections and the movable projection are arranged close to one of the two side surfaces. 5. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. A movable protrusion for permitting or prohibiting the shutter, and a first protrusion which is provided on a left side surface of two left and right side surfaces of the main body when the shutter is viewed from the front front, and enables connection and separation with the main body. Connecting mechanism and the shutter A second connection mechanism provided on the right side surface of the two left and right side surfaces of the main body when viewed from the front, and enabling connection and disconnection with the main body, When the external force is applied to the connection mechanism, the connection mechanism can be rotated about the first connection mechanism as a rotation fulcrum and can be separated from the main body, and the movable protrusion is a side surface on a side close to the first connection mechanism. A disk cartridge, which is arranged close to the disk cartridge. 6. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and any one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. A movable protrusion for permitting or prohibiting the shutter, and a first protrusion which is provided on a left side surface of two left and right side surfaces of the main body when the shutter is viewed from the front front, and enables connection and separation with the main body. Connecting mechanism and the shutter A second connection mechanism provided on the right side surface of the two left and right side surfaces of the main body when viewed from the front, and enabling connection and disconnection with the main body, When the external force is applied to the connection mechanism, the connection mechanism can rotate about the first connection mechanism as a rotation fulcrum and can be separated from the main body, and the movable protrusion faces the side on which the second connection mechanism is provided. A disk cartridge, which is located near the side surface on which the disk cartridge operates. 7. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and any one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. A movable protrusion for permitting or prohibiting the shutter, and a first protrusion which is provided on a left side surface of two left and right side surfaces of the main body when the shutter is viewed from the front front, and enables connection and separation with the main body. Connecting mechanism and the shutter A second connection mechanism provided on the right side surface of the two left and right side surfaces of the main body when viewed from the front, and enabling connection and disconnection with the main body, When the external force is applied to the connection mechanism, the connection mechanism can rotate about the first connection mechanism as a rotation fulcrum and can be separated from the main body, and the movable protrusion is configured to connect one of the first and second connection mechanisms. When the lid is pivotally separated from the main body as a pivot point,
A disk cartridge, which is arranged close to a side of the two side surfaces that has a smaller amount of rotation. 8. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. And a first and a second connection provided on each of two right and left sides of the main body when the shutter is viewed from the front and front, and enabling connection and separation with the main body. And a mechanism, Alternatively, when an external force is applied to one of the second connection mechanisms, the other connection mechanism can be rotated about the other connection mechanism as a rotation fulcrum and can be separated from the main body. When the lid is pivotally separated from the main body with one of the second connection mechanisms as a pivot point, the lid approaches the side of the two sides opposite to the side with the larger amount of rotation. A disk cartridge characterized by being arranged in a manner as described above. 9. A main body having a window for accommodating a recording medium and exposing a part of the recording medium, and any one of a closed position for closing the window and an open position for opening the window. A shutter formed so as to be movable to the main body, and a lid portion capable of being separated from the main body in a direction away from the shutter and the window portion, and allowing the recording medium to be taken out of the main body, The lid can be stopped at any one of a first position and a second position for permitting recording of information on the recording medium and prohibiting recording of information, and recording the information on the recording medium. A movable protrusion for permitting or prohibiting the shutter, and a first protrusion which is provided on a left side surface of two left and right side surfaces of the main body when the shutter is viewed from the front front, and enables connection and separation with the main body. Connecting mechanism and the shutter A second connection mechanism provided on the right side surface of the two left and right side surfaces of the main body when viewed from the front, and enabling connection and disconnection with the main body; When an external force is applied to one of the second connection mechanisms, the other connection mechanism can rotate about the other connection mechanism as a rotation fulcrum and can be separated from the main body. A disk cartridge, which is arranged close to a side surface on which a mechanism is provided, and wherein the external force is applied to the second connection mechanism. 10. The disk cartridge according to claim 1, wherein the first connection mechanism is located at a position farthest from the shutter on one of the two side surfaces. . 11. The second connection mechanism defines a plurality of line segments orthogonal to each of the two side surfaces and connecting the two side surfaces, wherein the line segment where the first connection mechanism is located is defined. 10. A shutter according to claim 1, wherein said shutter is provided at a position defined by an arbitrary line segment located between a line segment on which a front end surface of said shutter is located and one of said two side surfaces. The disk cartridge according to any of the above.