JPH0467345A - Disk cartridge loading device - Google Patents

Abstract

PURPOSE:To prevent the insertion of a disk cartridge housing the disk of classifications which do not correspond to a recording and/or reproducing device by providing a protruding part abutting on the bottom of a groove part for erroneous insertion detection, which is provided on the corner part of the disk cartridge, for an erroneous insertion detection pin provided on the tip-side of an erroneous insertion detection lever. CONSTITUTION:The protruding part 23C abutting on the bottom of the groove part for erroneous insertion detection part 13 provided on the corner part of one side in the disk cartridge 2 which is insertion-operated into a cartridge holder 20 is provided on the erroneous insertion detection pin fitted to the tip-side of the erroneous insertion detection lever 23b supported by the cartridge holder part 20. Consequently, the erroneous insertion detection lever 23, is turned by permitting the protruding part 23C to abut on the bottom of the groove part for erroneous insertion detection 13. Thus, the groove part for erroneous insertion prevention 13 corresponding to the classifications of the recording disk is provided. Thus, various disk cartridges 2 can be loaded on the recording and/or reproducing device or they are prevented from being loaded.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a disk cartridge loading device for loading a disk cartridge containing a recording disk into a recording and/or reproducing device.

B9 Summary of the Invention The present invention provides a disc cartridge mounting device for mounting a disc cartridge containing a recording disc into a recording and/or playback device, which is rotatable with respect to a cartridge holder portion into which the disc cartridge is inserted. Recording and/or playback is possible by providing a protrusion that comes into contact with the bottom of a groove for detecting incorrect insertion provided at a corner of the disk cartridge on the incorrect insertion detection pin provided on the tip side of the supported incorrect insertion detection lever. This is designed to prevent a disc cartridge containing a type of disc that is not compatible with the device from being inserted.

C9 Prior Art Conventionally, as shown in FIGS. 8 and 9, a disk 101 such as an optical disk or a magneto-optical disk, which is a recording disk on which information signals are written and/or continuously output, is rotatably mounted in a cartridge 102. A disc cartridge mounting device has been devised for mounting the stored disc cartridge 103 into a recording and/or reproducing device (not shown).

The cartridge 102 constituting the disc cartridge 103 is provided with a recording/reproducing opening 104 through which a part of the disc 101 faces outward across the inner and outer peripheries. And this disk cartridge 103
has a shutter member 105 movably attached to the cartridge 102. This shank member 105 is configured to open and close the recording/reproducing opening 104 by being moved relative to the cartridge 102 .

When the disc 101 is not in use, the recording/reproducing opening 104 is closed by the shutter member 105 to protect the cartridge 102 from dust, fingers, etc. .

Further, on one side of the front side of the cartridge 102,
A tapered portion 102a for detecting incorrect insertion is provided. The tapered portion 102a is formed such that a corner of the cartridge 102 is sloped and cut out.

The disk cartridge mounting device has a cartridge holder 106 into which the cartridge 102 is inserted. The cartridge holder 106 includes a holder portion 107 formed into a substantially housing shape into which the cartridge 102 can be inserted. and,
A shutter release lever 10B for opening the shutter member 105 is rotatably attached to the holder portion I07. Moreover, this holder part 107 includes
A detection lever 110 is rotatably mounted to detect if the cartridge 102 is inserted in the wrong direction.

The shutter release lever 10B has its base end supported by a support shaft 108.
It is rotatably supported substantially at the center of the holder portion 107 on the life side via the holder portion a. This shutter release lever 1
08, a shutter release bin 108b is installed. This shutter release pin 108b is attached to the front side of the holder portion 107.
is suspended into the holder portion 107 through a slit 109 provided along a movement locus centered on the support shaft 108a. This shutter release lever tOS is
The tension coil spring 108c causes the arrow e in FIG.
The shutter opening bin 108b is positioned at the initial position in a state where it is biased in a direction to move it toward the front side of the disc holder 107.

Further, the detection lever 110 has a base end connected to a support shaft 110a.
It is rotatably supported on one side of the entire surface of the holder portion 107 via the holder portion 107 . A detection pin 110b is installed on the tip side of the detection lever 110. This detection pin ttob is suspended into the holder part 107 through a notch 111 provided on one side of the holder part 107. The detection lever 110 is positioned at an initial position in a state where it is biased by a tension coil spring 110c in a direction to move the detection pin 110b indicated by an arrow f in FIG. 8 inward of the disk holder 107. There is.

The disk cartridge 103 is attached to the holder portion 107 of the cartridge holder 106 configured as described above.
However, when the insertion operation is performed in a predetermined direction as shown by arrow a in FIG. 9, the detection pin 110b comes into contact with the tapered portion 102a. Then, the detection lever 1
10 is rotated outward of the holder portion 107 as shown by arrow d in FIG.
2 can be further inserted inside the holder portion 107.

The disk cartridge 103 is connected to the holder section 107.
If the insertion operation is performed in the wrong direction, or if a disk cartridge having a cartridge not provided with the tapered portion 102a is inserted, the detection lever 110 will be inserted into the detection bin 110b. Since the cartridge 102 comes into contact with the side of the cartridge 102, it cannot be rotated. Therefore, this detection lever 110 prevents the cartridge 102 from being inserted further inside the holder portion 107.

The shutter release pin 108b is fitted into a shutter release recess 102b provided at a position corresponding to one side of the shutter member 105 of the cartridge 102. In this state, the disk cartridge 10
3 is further inserted into the holder portion 107, the shutter release pin 108b is pressed against the shutter release pin guide portion 102c that is continuous with the bottom of the shutter release recess 102b of the cartridge 102. . This shutter release pin 108b rotates the shutter release lever 108 as indicated by the arrow in FIG. Then, the shutter member 105 is pressed by the shutter release pin 108b, and the arrow C in FIG.
As shown in , the cartridge 102 is moved in the direction of opening the recording/reproducing opening 104 .

The disk cartridge 103 includes the holder section 10
7, the shutter release pin 10
8b is fitted into the shutter release pin insertion recess 102d formed continuously with the shutter release pin guide portion 102c, thereby reaching a predetermined mounting completion position within the holder portion 107. At this time, the recording/reproducing opening 1
04 is opened, and the disc 101 is exposed to the outside of the cartridge 102 over its inner and outer peripheries.

In the recording and/or reproducing apparatus, a writing and/or reading pickup device (not shown) faces the portion of the disc 101 that faces outward through the recording and reproducing opening 104 . Also, a chunking section 101a provided at the center of the disk 101
is held by a chucking mechanism (not shown) of the recording and/or reproducing device.

In this state, the disk 101 is rotated via the chucking mechanism, and information signals are written and/or read by the pickup device.

D1 Problem to be Solved by the Invention By the way, in a recording and/or reproducing apparatus using a disk cartridge mounting device as described above, disk cartridges containing different types of recording disks having various characteristics and recording methods are mounted. can be done. The characteristics and recording method of a recording disk refer to, for example, the amount of information signals that can be written per unit area on the recording disk, that is, the recording density, and the amount of energy required to write and/or read information signals. It is.

The recording and/or reproducing apparatus needs to write and/or read information signals according to the characteristics and recording method depending on the type of the recording disk to be loaded.

In other words, a disk cartridge containing a recording disk of a type that is not compatible with the recording and/or playback device is installed in the recording and/or playback device, and the recording and/or playback device does not match the type of the recording disk. If an inappropriate recording and/or reproducing operation is performed, not only the information signal cannot be written and/or read, but also the recording disk may be damaged.

Therefore, conventionally, in a disk cartridge mounting device, the difference in the shape of the cartridge provided according to the type of the recording disk is determined, and the recording and/or This is intended to prevent the disc cartridge from being attached to the playback device.

The difference in the shape of the cartridge provided depending on the type of recording disk is, for example, changing the thickness of the cartridge that accommodates the recording disk depending on the type of the recording disk. Further, depending on the type of the recording disk, the position of a tapered portion for detecting erroneous insertion provided in the cartridge is changed.

However, if it is attempted to determine the type of recording disk by changing the shape of the cartridge 2, it is difficult to deal with many types of recording disks. That is, the thickness of the cartridge has an appropriate thickness according to the thickness of the recording disk, and cannot be made too thick or extremely thin.The thickness of the cartridge should correspond to the thickness of the recording disk. If the thickness is too thick, it will be difficult to write and/or output information signals to the recording disk, the recording disk will not be able to rotate smoothly in the cartridge, and it will be difficult to store the disk cartridge for storage. It can become difficult. Further, there are only two positions where the tapered portion for detecting incorrect insertion can be provided: one side and the other side of the front side of the cartridge.

If the shape of the cartridge is changed depending on the type of recording disc, the disc cartridge mounting device and the recording and/or reproducing device need to be configured with different shapes to correspond to the shape of each cartridge. This makes the design and manufacture of these disk cartridge mounting devices and recording and/or reproducing devices complicated.

Here, as a difference in the shape of the cartridge according to the type of recording disk, it is considered that the shape of the tapered part for detecting incorrect insertion provided in the cartridge that accommodates the recording disk can be changed, as shown in FIG. It will be done. That is, one or more protrusions 13a, 13b are integrally provided on the tapered portion of the cartridge depending on the type of the recording disk, and the type of the recording disk is determined by the breakage and position of the protrusions. to be done.

When a plurality of protrusions are provided, they are arranged on the tapered portion in a direction perpendicular to the direction in which the cartridge is inserted into the disk cartridge mounting device. Therefore, when a plurality of protrusions are provided on the tapered portion, the tapered portion is provided with a bottom surface for detecting incorrect insertion in the direction along the insertion direction of the cartridge into the disk cartridge. A groove portion 13 will be formed.

In this way, by providing protrusions 13a and 13b on the tapered portion corresponding to the type of the recording disk and forming the erroneous insertion detection groove 13 with the tapered portion as the bottom surface, the thickness of the cartridge can be adjusted. Disk cartridges containing various types of recording disks can be identified without changing the information.

However, the disc cartridge configured as described above cannot be installed in the recording and/or reproducing apparatus using the conventional disc cartridge mounting apparatus as described above. As shown, this is because the detection bottle 110b comes into contact with the protrusions 13a and 13b provided on the tapered portion, and the detection lever 110 is not rotated.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and a groove is formed on a tapered portion for detecting erroneous insertion according to the type of recording disk without complicating design and manufacturing. It is an object of the present invention to provide a disk cartridge mounting device that can easily determine the type of recording disk of a disk cartridge.

80 Means for Solving the Problems In order to solve the above-mentioned problems and achieve the above-mentioned objects, the disc cartridge mounting device according to the present invention is a cartridge into which a disc cartridge rotatably housing a recording disc is inserted. a holder section, an erroneous insertion detection lever supported by the cartridge holder section and rotatable on one main surface of the cartridge holder section; An incorrect insertion detection pin protrudes inward of the cartridge holder portion through an opening provided on one side, and the incorrect insertion detection pin moves toward the center of the cartridge holder portion. and an elastic biasing means for rotationally biasing the detection lever, and the erroneous insertion detection pin is provided at a corner on one side of the disc cartridge in a direction along the insertion direction of the disc cartridge into the cartridge holder. It has a protrusion that comes into contact with the bottom of the erroneous insertion detection groove.

F0 Effect In the disk cartridge mounting device according to the present invention, the misinsertion detection pin attached to the tip side of the misinsertion detection lever supported by the cartridge holder and rotatable on the entire surface of the cartridge holder is , a protrusion is provided at one corner of one side of the disk cartridge to be inserted into the cartridge holder, so that the protrusion comes into contact with the bottom of the erroneous insertion detection groove provided in the direction along the insertion direction of the disk cartridge. When the disk cartridge is inserted into the cartridge holder, the protrusion comes into contact with the bottom of the erroneous insertion detection groove, thereby rotating the erroneous insertion detection lever. In addition, when a disk cartridge, in which the erroneous insertion detection groove is provided at a position that does not correspond to the protrusion, is inserted into the cartridge holder, the erroneous insertion detection pin is arranged so that when the erroneous insertion detection groove is inserted into the cartridge holder, the erroneous insertion detection groove is inserted into the cartridge holder. The erroneous insertion detection lever is not rotated by contacting the front surface of the erroneous insertion detection lever.

G. Examples Specific examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the disk cartridge mounting device according to the present invention includes a recording disk 1 on which information signals are written and/or read, and a cartridge 2 that rotatably accommodates the recording disk 1. This is a device for mounting the configured disk cartridge in a recording and/or reproducing device (not shown), the cartridge 2
The cartridge holder 20 is inserted into the cartridge holder 20.

As shown in FIGS. 1 and 6, the recording disk l is formed into a disk shape, with substantially the entire surface being a signal recording surface consisting of a predetermined signal recording layer, such as an optical disk or a magneto-optical disk. There is. For this recording disc 1,
A recording and/or reproducing device writes and/or reads information signals. And this recording disk 1
A chucking hub portion 1a for chucking the recording disk 1 by the recording and/or reproducing device is provided at the center of the chucking hub portion 1a.

The cartridge 2 is formed into a substantially rectangular housing having a size corresponding to the recording disk 1 so as to accommodate the recording disk 1 therein. This cartridge 2 is constructed by butting and joining an upper half 2a and a lower half 2b. The upper half 2a, which forms the upper main surface of the cartridge 2, has a lower recording/reproducing opening 3a through which the recording disk l faces outward across the inner and outer peripheries.
is provided. Further, the lower half 2b forming the lower main surface of the cartridge 2 is provided with the recording disk l so as to face the upper recording/reproducing opening 3a.
A lower recording/reproducing opening 3b is provided that faces outward across the inner and outer peripheries.

These recording and reproducing openings 3a and 3b are located on the front side of the cartridge 2, that is, in the insertion direction when this recording disk cartridge is installed in the recording and/or reproducing apparatus as indicated by arrow A in FIG. It is located on the side.

Further, in the center of the lower main surface of the cartridge 2, there is a
A chucking opening 3c is provided for allowing the chucking hub portion 1a to face outward.

Then, the cartridge 2 has this cartridge 2.
The recording/reproducing openings 3a are movable relative to each other.
, 3b is attached with a shutter member 4 that can be opened and closed. The shutter member 4 is formed by bending a thin plate made of a material such as metal or synthetic resin into a substantially U-shape so as to be able to sandwich the front side portion of the cartridge 2 from above and below. That is, this shutter member 4 has an upper plate portion 4a facing the upper main surface portion of the cartridge 2.
It has a lower plate part 4b facing the lower main surface of the cartridge 2, and a front plate part 4C that connects the upper plate part 4a and the lower plate part 4b.

The shutter member 4 has a front plate portion 4C supported by the front end portion of the cartridge 2, and is movable along this front end from a position on the other side to a position on one side. being done. This shutter member 4
When the cartridge 2 is moved, the recording/reproducing openings 3a and 3b are opened and closed.

That is, the upper plate portion 4a of the shutter member 4 is provided with an upper opening 5a having approximately the same size as each of the upper recording/reproducing openings 3a. The upper opening 5a is provided at a position so as to overlap the upper recording/reproducing opening 3a when the shuck member 4 is placed on the other side of the cartridge 2. Further, the lower plate portion 4b of this shutter member 4 has the lower recording/reproducing opening 3b.
A lower opening 5b having approximately the same size as the upper opening 5a is provided to face the upper opening 5a.

This lower opening 5b overlaps the lower recording/reproducing opening 3b when the shutter member 4 is positioned on the other side of the cartridge 2. Therefore, when the shutter member 4 is placed in the other side position with respect to the cartridge 2, it opens the respective recording/reproducing openings 3a, 3b, and when placed in the - side position, the shutter member 4 opens the respective recording/reproducing openings 3a, 3b. The opening 3a3b is closed.

This shutter member 4 is elastically biased in one side direction shown by arrow B in FIG. 6 by a torsion coil spring 6 disposed within the cartridge 2 so as not to contact the recording disk 1. ing. The torsion coil spring 6 has the distal end side of one arm portion 6a facing outward through a slit portion 7 provided on the front side of the cartridge 2, and the distal end side of the one arm portion 6a. It is engaged with a retaining piece 8 provided on the front plate portion 4c. Therefore, when the recording disk l is not in use,
By closing each of the recording and reproducing openings 3a and 3b with the shutter member 4, the cartridge 2
Protected from intrusion of dust, fingers, etc.

Note that in a portion on the front side of the cartridge 2 corresponding to the movement locus of the shutter member 4, the upper and lower halves 2a and 2b are made thin, so that the thickness approximately corresponds to the thickness of the shutter member 4. A stepped portion 9 in depth is formed. Therefore, the outer surface of the shutter member 4 is in a road-surface contact with the outer surface of the cartridge 2.

On the front surface of the cartridge 2, the shutter member 4 has the respective recording/reproducing openings 3a.

A recess 10 for opening the shutter is provided corresponding to one side of the front plate portion 4c when the lid 3b is closed, that is, when the front plate portion 4c is in the − side tilted position. An example of the front plate portion 4C faces the inner side of the shutter opening operation recess 1O when the shutter member 4 closes each of the recording and reproducing openings 3a and 3b. This shutter opening operation recess lO is for fitting a shutter opening member provided in the recording and/or reproducing device when this recording disk cartridge is installed in the recording and/or reproducing device. .

One side of the front surface of the cartridge 2 is a shutter opening member guide section 11 that is continuous with the bottom of the shutter opening operation recess 10. This shutter opening member guide part 11 is connected to the recessed part 1 for shutter opening operation.
This is to guide the movement of the shank opening member of the recording and/or reproducing apparatus that is inserted into the recording disk cartridge when the recording disk cartridge is installed.

A shutter opening member fitting portion 12 is provided on the side of the shutter opening member guide portion 11 opposite to the shutter opening operation recess 10, that is, at approximately the center of the front surface of the cartridge 2. This shutter release member insertion portion 12 is covered by the shank member 4 and does not face outward when the shutter member 4 is in the other side position. In the recording and/or reproducing apparatus, the shutter opening member fitting portion 12 faces outward when the opening operation of the shutter member 4 is completed, and the shutter opening member is inserted into the shutter opening member insertion portion 12. It is done like this. The cartridge 2 is placed in a predetermined mounting position within the recording and/or reproducing apparatus by fitting the shutter opening member into the shutter opening member fitting portion 12.

Further, on the other side of the front surface of the cartridge 2, a tapered portion is provided. And on this taber section,
A first projecting piece 13a is provided integrally with the upper half 2a. Further, a second projecting piece 13b is provided on this tapered portion integrally with the lower half 2b.

Each of these protruding pieces 13a, 13b is provided with a predetermined gap between them.
They are arranged in the thickness direction of the cartridge 2. Further, the front end and side end of each of these projecting pieces 13a and 13b are arranged to be in contact with the front and side surfaces of the cartridge 2, respectively, on the road surface. Therefore, each of these protrusions 13a and 13b has a groove portion 13 for detecting incorrect insertion, which has the tapered portion as the bottom surface, between each other.
is formed.

The erroneous insertion detection groove 13 is formed to have a position and a width corresponding to the recording density, recording method, etc. of the recording disk l. This disk cartridge has the groove portion 13 for detecting incorrect insertion, so that
A conventional disc cartridge mounting device determines that the disc cartridge cannot be mounted in a recording and/or reproducing device.

In the cartridge holder 20 of the disc cartridge mounting device according to the present invention, the disc cartridge configured as described above is placed with the front side to which the shutter member 4 is attached facing the disc holder 20. will be inserted.

The cartridge holder 20 includes a holder portion 21 formed in a substantially housing shape into which the cartridge 2 can be inserted.
It has. A shutter release lever 22 for opening the shutter member 4 is rotatably attached to the holder portion 21. Further, an erroneous insertion detection lever 23 is rotatably attached to the holder portion 21 for detecting that the cartridge 2 is inserted in the wrong direction.

The shutter release lever 22 is rotatably supported at its base end via a support shaft 22a at the substantially central portion of the front surface of the holder portion 21. A shutter release bin 22b, which serves as the shutter release member, is installed on the tip side of the shutter release lever 22.

This shutter release pin 22b has the supporting shaft 22a of the shutter release pin 22b on the front side of the holder portion 21.
A slit 24 provided along a movement trajectory centered on
It is suspended into the holder portion 21 through the holder portion 21 .

The shutter release lever 22 is first biased by a first tension coil spring 26 in a direction to move the shutter release bin 22b toward the front side of the recording disk holder 21, as shown by an arrow H. . The first tension coil spring 26 has one end locked to a spring locking protrusion 22c that projects above the shutter release lever 22, and the other end to a spring locking protrusion 22c that projects above the holder portion 21. It is locked by a stopper piece 27. The shutter release lever 22 is positioned at the initial position by abutting against a positioning protrusion 28 protruding from the holder portion 21.

Further, the erroneous insertion detection lever 23 has its proximal end connected to a support shaft 23.
It is supported on one side of the holder portion 21 via the holder portion a, and is rotatable on the entire surface of the holder portion 21. An erroneous insertion detection bin 23b is installed on the tip side of the erroneous insertion detection lever 23. The erroneous insertion detection pin 23b is suspended in the holder section 21 through a notch 25 provided as an opening on one side of the holder section 21. A protrusion 23c is provided on the tip side. This protrusion 23
c is the groove portion 13 for detecting incorrect insertion, as shown in FIG.
The erroneous insertion detection pin 23b is formed into a substantially disk shape with an enlarged diameter to correspond to the above.

The detection lever 23 is moved in the direction of moving the detection pin 23b inward of the holder portion 21, as shown by arrow I in FIG. It is positioned at the initial position in a biased state. The second tension coil spring 29 has one end locked to a spring locking protrusion 3I projecting above the incorrect insertion detection lever 23, and the other end to the holder portion 21.
It is locked by a spring locking protrusion 30 that projects above.

When the disk cartridge is inserted into the holder portion 21 of the disk cartridge mounting device according to the present invention configured as described above in a predetermined direction as shown by arrow C in FIG. The tip end of the shutter release pin 22b fits into the shutter release recess 10 of the cartridge 2.

Further, when this disk cartridge is inserted into the holder portion 21, the protrusion 23c of the detection pin 23b
comes into contact with the bottom of the erroneous insertion detection groove 13. In this state, when the cartridge 2 is further inserted into the holder part 21, the detection lever 23 is moved to the outside of the holder part 21 during the fourth time, as shown by arrow F. The cartridge 2 is then rotated so that the cartridge 2 can be further inserted into the holder portion 21.

Note that if the disc cartridge is inserted into the holder part 21 in the wrong direction, the detection lever 23 will not rotate because the protrusion 23c of the detection pin 23b will come into contact with the front surface of the cartridge 2. At this time, the detection lever 23 prevents the cartridge 2 from being inserted further into the holder portion 21.

When the disk cartridge is inserted, the shutter release pin 22b is pressed against the inner ivy release member guide portion 11 of the cartridge 2, as shown in FIG. Then, the shutter release lever 22 is moved to the fourth position.
It is rotated as shown by the arrow in the figure. The shutter member 4 is pressed by the shutter release pin 22b, and as shown by arrow E in FIG.
In contrast, the respective recording/reproducing openings 3a and 3b are moved in the direction of opening them.

When this disk cartridge is inserted further inside the holder portion 21, the shutter release pin 22b is fitted into the shutter release member insertion portion 12, as shown in FIG. It is placed at a predetermined position within the holder portion 21. At this time, each of the above-mentioned recording/reproducing openings 3a.

3b is opened, and the recording disk 1 is exposed to the outside of the cartridge 2 over its inner and outer peripheries.

In the recording and/or reproducing apparatus, when the installation of the disc cartridge is completed, the recording disc l
Each of the above-mentioned recording/reproducing openings 3a.

A writing and/or reading pickup device (not shown) faces the portion facing outward via 3b. Further, the chucking hub portion 1a at the center of the recording disk 1 is held by a chucking mechanism (not shown) of the recording and/or reproducing apparatus via the chucking opening 3c.

In this state, the recording disk I is rotated via the chucking mechanism, and information signals are written and/or read by the pickup device.

Note that the disk cartridge mounting device according to the present invention includes:
It is also possible to mount a conventional disk cartridge in which the protrusions 13a and 13b are not provided on the tapered portion as shown in FIGS. 8 and 9 in the recording and/or reproducing apparatus. can. In this case, the erroneous insertion detection pin 23b rotates the erroneous insertion detection lever 23 as the protruding portion 23c moves on the tapered portion 102a.

'That is, the disk cartridge mounting device according to the present invention not only has the conventional disk cartridge, but also the groove portion 13 for detecting incorrect insertion, which is provided with each of the protrusions 13a and 13b.
A disk cartridge having the above-mentioned recording and/or
Or it can be attached to a playback device.

In addition, in this disk cartridge mounting device,
The erroneous insertion detection groove 13 is connected to the erroneous insertion detection bin 23b.
When a disk cartridge provided at a position that does not correspond to the protruding portion 23c is inserted into the holder portion 21, the protruding portion 23c comes into contact with the front side of the disk cartridge, and the incorrect insertion detection lever 23 is activated. Not rotated. Therefore, in this case, the disc cartridge is not installed in the recording and/or reproducing device. In other words, the disc cartridge mounting device is provided with a groove for detecting erroneous insertion depending on the type of the stored recording disc. It is possible to identify a disk cartridge by checking the position and width of this erroneous insertion detection groove.

Note that the disk cartridge mounting device according to the present invention includes:
Without being limited to the above-described embodiment, the shape of the protrusion 23C provided on the erroneous insertion detection bin 23b can be changed as appropriate in accordance with the shape of the erroneous insertion detection groove provided on the disk cartridge. . And this protrusion 2
3c may be provided integrally with the erroneous insertion detection bin 23b, or an annular member may be provided on the erroneous insertion detection bin 23b.
3b may be fitted externally.

Furthermore, this protrusion 23c is connected to the erroneous insertion detection bin 23.
In addition to being provided coaxially with respect to b as in the above embodiment, it may also be provided eccentrically, or the tip side of the incorrect insertion detection bottle 23b may be bent. , this protrusion 23c is connected to the incorrect insertion detection bin 2.
3b, or when the tip side of the erroneous insertion detection bottle 23b is bent, this protrusion 23c is placed inward of the holder part 21 with respect to the erroneous insertion detection bottle 23b. If it is provided so as to be located on the side, the protrusion 2 will be removed when inserting the disk cartridge.
The amount of outward protrusion of the holder portion 21 of 3c can be reduced.

H8 Effects of the Invention As described above, in the disk cartridge loading device according to the present invention, the erroneous insertion detection lever is supported by the cartridge holder portion and is rotatable on the entire surface of the cartridge holder. The erroneous insertion detection bin has a protrusion that abuts the bottom of a erroneous insertion detection groove provided in a corner of one side of the disk cartridge inserted into the cartridge holder in a direction along the insertion direction of the disk cartridge. is provided.

Therefore, in the erroneous insertion detection bin, when the cartridge is inserted into the cartridge holder, the erroneous insertion detection groove is provided at a position corresponding to the protrusion, so that when the cartridge is inserted into the cartridge holder, the protrusion The erroneous insertion detection lever is rotated by contacting the bottom of the erroneous insertion detection groove. Further, the erroneous insertion detection bin does not rotate the erroneous insertion detection lever unless the erroneous insertion detection groove is provided at a position corresponding to the protrusion.

Therefore, this disk cartridge loading device is equipped with not only conventional disk cartridges but also disks that cannot be inserted into the conventional disk cartridge loading device because they are provided with grooves to prevent incorrect insertion depending on the type of stored recording disk. Cartridges can also be attached to recording and/or playback devices.

The disk cartridge mounting device determines which disk cartridges are provided with grooves for preventing erroneous insertion at different positions depending on the type of recording disk, and
It is possible not to attach the recording and/or reproducing device to the recording and/or reproducing device.

That is, the present invention makes it possible to easily determine the type of recording disk of a disk cartridge in which a groove is formed on the tapered portion for detecting incorrect insertion according to the type of recording disk, without complicating design and manufacturing. A disk cartridge mounting device can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the configuration of a disc cartridge mounting device according to the present invention and a disc cartridge inserted into the disc cartridge mounting device. FIG. 2 is an enlarged side view of a main part showing the shape of an erroneous insertion detection bin provided in the disk holder. FIG. 3 is a partially cutaway plan view showing a state in which the disk cartridge has started to be loaded into the disk cartridge loading device, and FIG. FIG. 5 is a partially cutaway plan view showing a state in which the disc cartridge mounting device has completed mounting the disk cartridge. FIG. FIG. 6 is a perspective view showing the structure of the disk cartridge. FIG. 7 is a partially cutaway plan view showing a state in which the disc cartridge is about to be mounted on a conventional disc cartridge mounting device. FIG. 8 is a perspective view showing the structure of the conventional disc cartridge mounting device and the conventional disc cartridge mounted on the disc cartridge mounting device, and FIG.
The figure is a partially cutaway plan view showing a state in which the conventional disc cartridge is being mounted on the conventional disc cartridge mounting device.

Claims (1)

[Scope of Claims] A cartridge holder portion into which a disk cartridge rotatably housing a recording disk is inserted; and a cartridge holder portion supported by the cartridge holder portion and rotatable on one main surface of the cartridge holder. an erroneous insertion detection lever attached to the tip side of the erroneous insertion detection lever and protruding inward of the cartridge holder through an opening provided on one side of the cartridge holder; an insertion detection pin; and an elastic biasing means for rotating and urging the incorrect insertion detection lever in a direction in which the incorrect insertion detection pin moves toward the center of the cartridge holder portion, and the incorrect insertion detection pin is configured to move the disk A disk cartridge mounting device comprising a protrusion at one corner of the cartridge that comes into contact with the bottom of a groove for detecting erroneous insertion provided in a direction along the insertion direction of the disk cartridge into the cartridge holder.