JP2007080467A - Adapter device for disk cartridge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To record and reproduce a second disk cartridge a disk recording and reproducing device for a first disk cartridge. <P>SOLUTION: The adapter device for the disk cartridge comprises: an adapter main body 2 in a shape matched with the external shape of the first disk cartridge; a mounting part 3 on which the second disk cartridge 200 whose outer shape is different from the one of the first disk cartridge is mounted; a falling preventing piece 8 for preventing falling from the mounting part 3 by being engaged with the second disk cartridge 200 mounted on the mounting part 3; a first opening 4 formed on the mounting part 3 corresponding to an opening 206 for drive of the second disk cartridge 200; and a second opening 5 corresponding to an opening 204 for recording and reproduction of the second disk cartridge 200. By mounting the second disk cartridge 200 on the mounting part 3, the second disk cartridge 200 is recorded and reproduced in the disk recording and reproducing device for the first disk cartridge. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk cartridge adapter device that allows a second disk cartridge to be loaded into a recording and / or reproducing device for a first disk cartridge.

  Disc cartridges that record audio / visual data, game programs, processing data processed by a computer, and the like include a first disc cartridge shown in FIG. 4 and a second disc cartridge shown in FIG.

  In the first disk cartridge 100 shown in FIG. 4, a magneto-optical disk 101 is rotatably housed in a substantially rectangular cartridge body 102. At the center of the magneto-optical disk 101 serving as a recording medium, a clamping plate 103 that engages a disk table containing a magnet that constitutes a disk rotation driving mechanism on the disk recording / reproducing apparatus side is attached.

  In the cartridge main body 102 that accommodates the magneto-optical disk 101 in a rotatable manner, a part of the signal recording area of the magneto-optical disk 101 is exposed to the outside in a substantially opposite surface at the center of the front surface 102a. Openings 104a and 104b for recording and reproduction are formed. One opening 104a is for allowing a magnetic head that applies a magnetic field to the magneto-optical recording layer of the magneto-optical disk 101 to enter the inside of the cartridge body 102, and the other opening 104b is used for optical pickup. This is intended to face the magnetic disk 101.

  A shutter member 105 having a substantially C-shaped cross section for opening and closing the recording / reproducing openings 104a and 104b is slidably attached to the front surface 102a side of the cartridge body 102. The shutter member 105 opens the recording / reproducing openings 104a and 104b only when loaded in the disk recording / reproducing apparatus, and closes the openings 104a and 104b when not in use.

  The shutter member 105 is locked in a state in which the recording / reproducing openings 104a and 104b are closed by the lock member 108 in the cartridge main body 102. The lock member 108 is formed in a substantially C shape by an attachment piece 108 a and an elastic piece 108 b and is attached to an attachment pin 108 c in the cartridge main body 2. When the lock member 108 is attached to the cartridge body 102, the attachment piece 108a is fixed, and the elastic piece 108b is elastically displaced with respect to the attachment piece 108a. Then, the engagement member 105b of the extension piece 105a formed along the front surface of the cartridge body 102 on the shutter member 105 engages with the engagement recess 108d formed on the elastic piece 108b, whereby the shutter member 105 is recorded and reproduced. It locks in the position which obstruct | occluded opening 104a, 104b for use.

  A substantially circular disk drive opening 106 is provided in the center of the lower surface of the cartridge main body 102 so that the clamping plate 103 of the magneto-optical disk 101 faces the outside. When the first disk cartridge 100 is loaded into the disk recording / reproducing apparatus, the disk table enters from the driving opening 106, and the clamping plate 103 of the magneto-optical disk 101 is magnetically attracted to the disk table.

  Further, positioning holes 107a and 107b made of a perfect circle and an ellipse are formed on the bottom surface of the cartridge main body 102 and along the front surface 102a.

  The first disc cartridge 100 as described above is loaded into the disc recording / reproducing apparatus with one side surface 102b orthogonal to the front surface 102a of the cartridge body 102 as an insertion end. Then, the shutter member 105 slides along the front surface 102a of the cartridge main body 102 in the same direction as the insertion direction of the first disk cartridge 100 to open the recording / reproducing openings 104a and 104b. At this time, the lock of the shutter member 105 is released when the insertion guide piece on the disc recording / reproducing apparatus side presses the elastic piece 108b of the lock member 108 inward, whereby the engagement piece 105b of the extension piece 105a of the shutter member 105 is elastic. This is done by disengaging from the engagement recess 108d of the piece 108b. Then, the positioning pins on the disk recording / reproducing apparatus side are positioned by engaging with the positioning holes 107a and 107b, so that recording and reproduction are possible. The magneto-optical disk 101 is rotated with the clamping plate 103 mounted on the disk table. At the same time, the magneto-optical disk 101 is applied with a magnetic field by the magnetic head that has entered the cartridge body 102 from the recording / reproducing opening 104a, and is also irradiated with a light beam by the optical pickup through the recording / reproducing opening 104b. Thus, an information signal is recorded. Further, the magneto-optical disk 101 is irradiated with a light beam through the recording / reproducing opening 104b by the optical pickup, and the light beam reflected by the magneto-optical disk 101 is detected by the optical pickup, thereby reproducing the information signal. Is done.

  As a recording medium stored in the cartridge main body 102, in addition to the magneto-optical disk 101, a read-only optical disk in which data is recorded in advance by a pit pattern, and an organic dye material for the recording layer can be additionally recorded. Alternatively, a write-once optical disc, a rewritable optical disc capable of rewriting data using a phase change material for the recording layer, or the like may be used.

  Further, the second disk cartridge 200 shown in FIG. 5 is one in which the optical disk 201 is rotatably accommodated in the cartridge main body 202 and is one side serving as an insertion end side to the disk recording / reproducing apparatus. The front side is formed as an arcuate portion 202a. Further, the cartridge main body 202 is formed as a continuous curved portion 202b that is gently curved on the back side. The second disc cartridge 200 has a circular arc portion 202a and a curved portion 202b on the front and back sides, whereas the first disc cartridge 100 has a straight front and back side. The shape is greatly different.

  Further, in the second disk cartridge 200, a clamping plate 203 engaged with a disk table incorporating a magnet that constitutes a disk rotation driving mechanism on the disk recording / reproducing apparatus side is provided at the center of the optical disk 201 serving as a recording medium. It is attached. The recording medium used here is a reproduction-only optical disk in which data is recorded in advance by a pit pattern, but may be a magneto-optical disk or a write-once or rewritable optical disk.

  A substantially rectangular recording / reproducing opening 204 is formed on the bottom surface of the cartridge main body 202 that accommodates the optical disk 201 in a rotatable manner so as to be positioned substantially at the center of one linear side surface 202c. The recording / reproducing opening 204 allows a part of the signal recording area of the optical disc 201 to face outside in the radial direction. In addition, a substantially circular disk drive opening 206 is provided at a substantially central portion of the bottom surface of the cartridge main body 202 so that the clamping plate 203 of the optical disk 201 faces the outside. When the second disk cartridge 200 is loaded into the disk recording / reproducing apparatus, the disk table enters from the driving opening 206, and the clamping plate 203 of the optical disk 201 is magnetically attracted to the disk table. The second disk cartridge 200 is not provided with a shutter member that opens and closes the recording / reproducing opening 204 of the first disk cartridge 100.

  In addition, positioning holes 207a and 207b made of a perfect circle and an ellipse are formed on the bottom surface of the cartridge main body 202 along the curved portion 202b.

  The second disc cartridge 100 as described above is loaded into the disc recording / reproducing apparatus with the arcuate portion 202a of the cartridge body 202 as the insertion end. Then, the second disc cartridge 200 is positioned by engaging the positioning pin on the disc recording / reproducing apparatus side with the positioning holes 207a and 207b, and is ready for recording and reproduction. The optical disc 201 is rotated with the clamping plate 203 mounted on the disc table, and the optical beam is irradiated by the optical pickup through the recording / reproducing opening 204 and reflected by the optical disc 201. As a result, the information signal is reproduced.

  When the first disk cartridge 100 and the second disk cartridge 200 are compared, they are both of a size that can be stored in the palm of one hand, and an optical disk that uses an optical pickup for recording and reproduction is used as a recording medium. The recording / reproducing units such as the disk table and the optical pickup of the disk recording / reproducing apparatus can be shared. As shown in FIG. 6, the first disk cartridge 100 and the second disk cartridge 200 are formed by attaching clamping plates 103 and 203 to the magneto-optical disk 101 and the optical disk 201, and further, an opening for driving. The positions of 106 and 206 also substantially coincide.

  On the other hand, as shown in FIG. 6, the second disk cartridge 200 has a smaller overall size than the first disk cartridge 100 and is formed thinner. Further, the first disk cartridge 100 is formed with each side being linear and the whole is substantially rectangular, whereas the second disk cartridge 200 is provided with an arcuate portion 202a and a curved portion 202b. The outer shape of the first disk cartridge 100 is different. The positions of the positioning holes 207 a and 207 b of the second disk cartridge 200 are also different from the positions of the positioning holes 107 a and 107 b of the first disk cartridge 100. These differences in the outer shape of the first disk cartridge 100 and the second disk cartridge 200 hinder the common use of the disk recording / reproducing apparatus.

Japanese Patent Application Laid-Open No. 07-6493

  The present invention has been made in view of the above-described problems, and an object of the present invention is to make it possible to mount the second disk cartridge on the adapter main body that matches the outer shape of the first disk cartridge. An object of the present invention is to provide a disk cartridge adapter device that enables recording and reproduction of a second disk cartridge by a disk recording and reproduction apparatus of one disk cartridge.

  Another object of the present invention is to provide a disk cartridge adapter device capable of accurately positioning and mounting the second disk cartridge on the adapter main body.

  A further object of the present invention is to provide a disk cartridge adapter device that can easily attach and detach a second disk cartridge.

  It is another object of the present invention to provide a disk cartridge adapter device that can protect a disk used in a second disk cartridge that is not provided with a shutter member for a recording / reproducing opening.

  In the adapter device for a disk cartridge according to the present invention, an adapter main body having a shape matching the outer shape of the first disk cartridge and a second disk cartridge having a different outer shape from the first disk cartridge are positioned and mounted. A mounting portion that is formed on the outer peripheral portion of the mounting portion and that is engaged with the second disc cartridge mounted on the mounting portion to prevent the mounting portion from falling off, and the second Corresponding to the disk rotation driving opening formed on the bottom surface of the disk cartridge, and the recording and / or recording formed on the bottom surface of the second disk cartridge. Or the 2nd opening part formed in the said mounting part corresponding to the opening part for reproduction | regeneration is provided.

  In the present invention, the second disk cartridge is mounted on the mounting portion in a state in which the second disk cartridge is prevented from dropping by the drop-off preventing piece. As a result, the first opening and the disk rotation driving opening of the second disk cartridge coincide with each other, and the second opening and the recording and / or reproducing opening of the second disk cartridge Are matched, and the recording and / or reproducing apparatus for the first disk cartridge can be mounted. The user can record and / or reproduce the second disk cartridge by the recording and / or reproducing apparatus of the first disk cartridge by attaching the second disk cartridge to the adapter device, thereby improving convenience. Figured.

  Hereinafter, a disk cartridge adapter device to which the present invention is applied will be described with reference to the drawings.

  As shown in FIG. 1, the adapter device 1 to which the present invention is applied has an adapter body 2 that matches the outer shape of the first disk cartridge 100 shown in FIG. That is, the adapter main body 2 has a substantially rectangular shape as a whole so that the adapter main body 2 can be mounted on the disk recording / reproducing apparatus of the first disk cartridge 100, and has the same shape and the same size as the cartridge main body 102 of the first disk cartridge 100. For example, it is formed by injection molding a synthetic resin.

  A mounting portion 3 to which the second disk cartridge 200 shown in FIG. 5 is mounted is formed on one main surface portion of the adapter main body 2. The mounting portion 3 is formed as a recess having a size that is inscribed in the adapter main body 2, and is formed corresponding to the outer shape of the second disk cartridge 200.

  A substantially circular first opening 4 corresponding to the driving opening 206 of the second disk cartridge 200 is formed on the bottom surface of the mounting portion 3. Since the first opening 4 faces the clamping plate 203 facing the driving opening 206 to the outside, the first opening 4 is formed to have a size that allows at least the entire driving opening 206 to face the outside. Yes.

  Further, the mounting portion 3 is formed with a substantially rectangular second opening 5 at the approximate center of the front surface 2a. The second opening 5 is formed corresponding to the recording / reproducing opening 204 of the second disk cartridge 200. The position where the second opening 5 is provided is also a position corresponding to the recording / reproducing opening 104b of the first disk cartridge 100 shown in FIG. Since the second opening 5 allows the signal recording area to face the outside both inside and outside so that the recording / reproducing of the optical disc 201 can be performed, at least the entire recording / reproducing opening 204 faces the outside. It is formed in size.

  Note that the first opening 4 and the second opening 5 of the adapter main body 2 may be constituted by continuous openings.

  Further, the mounting portion 3 is formed with positioning pins 6 a and 6 b that engage with the positioning holes 207 a and 207 b of the second disk cartridge 200. Further, the mounting portion 3 is formed with a removal opening 7 for facilitating attachment / detachment of the second disk cartridge 200.

  In the mounting portion 3 as described above, the side surface 2b orthogonal to the front surface 2a of the adapter main body 2 is an arc-shaped portion 3a corresponding to the arc-shaped portion 202a of the second disk cartridge 200. The other side surface 2c side perpendicular to the front surface 2a of the second disk cartridge 200 is a curved portion 3b corresponding to the curved portion 202b.

  Further, a plurality of drop-off prevention pieces 8 are formed on the peripheral wall 9 of the mounting portion 3. The drop-off prevention piece 8 prevents the second disc cartridge 200 attached to the attachment portion 3 from falling out of the attachment portion 3, and is provided at three locations near the center of the arc-shaped portion 3a and both sides of the curved portion 3b. Is provided. Each drop-off preventing piece 8 is integrally formed on the bottom surface of the mounting portion 3 in a recess 10 that is recessed outward from the peripheral wall 9 of the mounting portion 3 and is formed so as to be elastically displaced over the inside and outside. A locking protrusion 8 a that locks the outer peripheral edge of the second disk cartridge 200 mounted on the mounting portion 3 is formed on the distal end side of each dropout prevention piece 8.

  Note that the number of drop-off prevention pieces 8 is not limited to three examples, and may be one, two, or four or more.

  Further, on the bottom surface of the adapter main body 2, positioning holes 11 a and 11 b made of a perfect circle and an ellipse corresponding to the positioning holes 107 a and 107 b of the first disk cartridge 100 are formed.

  The second disk cartridge 200 is mounted on the adapter device 1 as described above as follows. That is, the arcuate portion 202a of the second disk cartridge 200 corresponds to the arcuate portion 3a of the mounting portion and the mounting portion 3 of the adapter main body 2 corresponds to the arcuate portion 3a of the mounting portion 3, and the curved portion 3b of the mounting portion 3 The curved portion 202b is made to correspond, the recording / reproducing opening 204 is made to correspond to the second opening 5, and the driving opening 206 is made to correspond to the first opening 4. A disc cartridge 200 is loaded. When the second disk cartridge 200 is mounted, the drop-off prevention piece 8 of the mounting portion 3 is temporarily elastically displaced to the outside of the mounting portion 3, so that the locking protrusion 8 a is engaged with the second disk cartridge 200. The second disk cartridge 200 is prevented from falling off from the mounting portion 3. Further, the second disk cartridge 200 mounted in the mounting portion 3 is positioned and mounted by engaging the positioning pins 6a and 6b with the positioning holes 207a and 207b. As a result, the optical disc 201 which is the recording medium of the second disc cartridge 200 has the clamping plate 203 exposed to the outside from the driving opening 206 of the cartridge main body 202 and the first opening 4 of the adapter main body 2, and recording / reproduction is performed. A part of the signal recording area faces the outside in the radial direction through the opening 204 for use and the second opening 5.

  Thus, the second disk cartridge 200 is mounted on the adapter device 1 having the same outer shape as the first disk cartridge 100, and the adapter device 1 mounted with the second disk cartridge 200 is connected to the first disk cartridge 100. Similarly, the adapter body 2 is inserted into the disk recording / reproducing apparatus of the first disk cartridge 100 with the one side surface 2b of the adapter body 2 as an insertion end. Then, the adapter device 1 is positioned and mounted on the cartridge mounting portion by engaging a pair of positioning pins of the cartridge mounting portion provided with the disk table and optical pickup on the disk recording / reproducing device side with the positioning holes 11a and 11b. The Then, the disk table of the disk recording / reproducing apparatus enters the cartridge body 202 from the drive opening 206 of the cartridge body 202 and the first opening 4 of the adapter body 2, magnetically attracts the clamping plate 203, and the optical disk 201 is rotatably mounted. In addition, the objective lens of the optical pickup faces the signal recording area of the optical disc 201 through the recording / reproducing opening 204 and the second opening 5. Then, the optical disk 201 of the second disk cartridge 200 is rotated at a linear velocity or angular velocity by a disk table, or a combination of these, and a return light beam that is irradiated and reflected by an optical pickup is detected. As a result, the information signal is recorded and reproduced.

  The removal of the second disk cartridge 200 from the mounting portion 3 of the adapter device 1 is performed by inserting the finger of the user through the removal opening 7 and pressing the bottom surface of the second disk cartridge 200. This is performed by temporarily elastically displacing the drop-off prevention piece 8.

  According to the adapter device 1 as described above, the second disk cartridge can be mounted on the disk recording / reproducing device for the first disk cartridge 100 by the operation of mounting the second disk cartridge 200 on the mounting portion 3. The convenience of 200 can be improved.

  Next, a modified example of the adapter device 1 described above will be described with reference to FIG. The adapter device 1 shown in FIG. 2 is characterized in that a shutter member 21 that opens and closes the second opening 5 is provided. The shutter member 21 corresponds to the shutter member 105 of the first disk cartridge 100. As shown in FIG. 2, the shutter member 22 that opens and closes the second opening 5 and the front surface 2a of the adapter main body 2 are provided. And the attachment part 23 to be attached to, and the whole is formed in a substantially L shape. Further, a guide portion 24 is formed on the attachment portion 23 so as to be substantially parallel to the shutter portion 22. A guide protrusion 24 a is formed on the guide portion 24 so as to be substantially parallel to the attachment portion 23. Further, an extension piece 25 is formed in the attachment portion 23 in the extending direction along the front surface 2a of the adapter body 2, and the shutter member 21 is closed to the second opening portion 5 and locked to the extension piece 25. An engagement piece 26 is formed.

  On the other hand, the shutter member 21 as described above is attached to the front surface side of the adapter body 2 so that the front surface side of the adapter body 2 is sandwiched between the shutter portion 22 and the guide portion 24. A guide groove 27 for guiding the movement of the shutter member 21 is formed. Although not illustrated, an engagement groove is formed in the guide groove 27 along the moving direction, and the guide protrusion 24a of the guide portion 24 is engaged, so that the adapter body 2 is prevented from falling off from the front surface 2a. Further, when the shutter member 21 is attached to the adapter main body 2, the extension piece 25 extends along the front surface 2 a, and the engagement piece 26 enters the adapter main body 2.

  The adapter body 2 is provided with a lock member 28 that locks the movement of the shutter member 21. The lock member 28 is formed in a substantially C shape by an attachment piece 28 a and an elastic piece 28 b and is attached to an attachment pin 28 c in the adapter body 2. When the lock member 28 is attached to the adapter body 2, the attachment piece 28a is fixed, and the elastic piece 28b is elastically displaced with respect to the attachment piece 28a. Then, the engagement piece 26 of the extension piece 25 of the shutter member 21 is engaged with the engagement recess 28d formed in the elastic piece 28b, whereby the shutter member 21 is locked at the position where the second opening 5 is closed. The

  In addition, regarding the shutter member 21, the shutter portion that opens and closes the second opening 5 may open and close the first opening 4 in addition to the second opening 5.

  The adapter device 1 shown in FIG. 2 as described above is in the position where the shutter portion 22 closes the second opening 5 of the adapter body 2 when not inserted into the disk recording / reproducing device, and the shutter member. The engagement piece 26 of the extension piece 25 of 21 is engaged with the engagement recess 28d formed in the elastic piece 28b, and the movement of the shutter member 21 is locked. In this state, the second disk cartridge 200 is attached to and detached from the mounting portion 3. Thus, when the second disc cartridge 200 is mounted in the mounting portion 3, the adapter device 1 has the second opening 5 closed by the shutter portion 22 of the shutter member 21, and this closed state is locked. Therefore, the optical disc 201 of the second disc cartridge 200 is not exposed to the outside through the recording / reproducing opening 204 and the second opening 5, and foreign matter such as dust and fingerprints adheres to the optical disc 201. This can be prevented.

  2 is inserted into the disk recording / reproducing apparatus of the first disk cartridge 100 with the one side surface 2b as the insertion end in a state where the second disk cartridge 200 is mounted in the mounting portion 3. Then, the shutter member 21 slides along the front surface 2a of the adapter main body 2 in the direction of arrow A in FIG. 2 which is the same as the insertion direction of the adapter device 1 in FIG. 2, and opens the second opening 5. At this time, the shutter member 21 is unlocked when the insertion guide piece on the disc recording / reproducing apparatus side presses the elastic piece 28b of the lock member 28 inward, so that the engagement piece 26 of the extension piece 25 of the shutter member 21 is an elastic piece. This is done by disengaging from the engaging recess 28d of 28b.

  According to the adapter device 1 as described above, the second disk cartridge can be mounted on the disk recording / reproducing device for the first disk cartridge 100 by the operation of mounting the second disk cartridge 200 on the mounting portion 3. The convenience of 200 can be improved. In addition, when the second disc cartridge 200 is mounted on the mounting portion 3, the second opening 5 is closed by the shutter member 21, thereby forming a recording medium for the second disc cartridge 200. The optical disc 201 can be protected.

  Further, an adapter device to which the present invention is applied will be described with reference to FIG. As shown in FIG. 3, the adapter device 30 has an adapter main body 31 that matches the outer shape of the first disk cartridge 100. The adapter main body 31 is also substantially rectangular as a whole, and the second disk cartridge 200 has an arc shape on the other side surface 31c opposite to the one side surface 31b serving as an insertion end of the first disk cartridge 100 into the disk recording / reproducing apparatus. An insertion / removal port 32 to be inserted with the portion 202a as an insertion end is formed, and further, a storage portion 33 to be a mounting portion for mounting the second disk cartridge 200 is formed continuously to the insertion / removal port 32. The storage portion 33 has an arc-shaped portion 33 a corresponding to the arc-shaped portion 202 a at the insertion end of the second disk cartridge 200 formed at the innermost portion.

  A substantially circular first opening 34 corresponding to the driving opening 206 of the second disk cartridge 200 is formed in the storage portion 33 at a substantially central portion of the bottom surface of the adapter main body 31. In the storage portion 33, a substantially rectangular second opening 35 is formed in the approximate center of the front surface 31 a of the adapter main body 31. The second opening 35 is formed corresponding to the recording / reproducing opening 204 of the second disk cartridge 200.

  As described above, the storage portion 33 of the adapter main body 31 has the same configuration as the adapter main body 2 of the adapter device 1 described above, but the second disk cartridge 200 is connected to the storage portion 33 and the bottom surface through the insertion / removal port 32. Therefore, the positioning pins 6a and 6b formed on the adapter main body 2 that obstruct the sliding of the second disk cartridge 200 are not provided.

  Further, the storage portion 33 has a back-off prevention piece that is engaged with an engagement recess 208 formed in the second disk cartridge 200 stored in the storage portion 33 on the back surface 31 d opposite to the front surface 31 a of the adapter body 31. 36 is engaged. The drop-off prevention piece 36 is formed so as to be elastically displaceable in a direction orthogonal to the back surface 31d by providing a cut in the back surface 31d of the adapter main body 31. When the second disk cartridge 200 is stored in the storage portion 33, the drop-off prevention piece 36 is engaged with the engagement recess 208 of the second disk cartridge 200, so that the second disk cartridge 200 is inserted into the storage portion 33. Hold.

  Further, on the bottom surface of the adapter main body 31, positioning holes 37 a and 37 b made of perfect circles and ellipses corresponding to the positioning holes 107 a and 107 b of the first disk cartridge 100 are formed along the front surface 31 a.

  In the adapter device 30 as described above, the second disk cartridge 200 is mounted as follows. In other words, the arcuate portion 202a of the second disk cartridge 200 is inserted into the storage portion 33 of the adapter main body 31 from the insertion / removal port 32 with the insertion end. Then, the drop-off prevention piece 36 is engaged with the engagement recess 208 of the second disk cartridge 200, whereby the storage position is held. As a result, the optical disc 201 which is the recording medium of the second disc cartridge 200 has the clamping plate 203 exposed to the outside from the driving opening 206 of the cartridge main body 202 and the first opening 34 of the adapter main body 31, and recording / reproducing is performed. A part of the signal recording area is exposed to the outside in the radial direction through the opening 204 for use and the second opening 35. The adapter device 30 is inserted into the first disc recording / reproducing device with the one side surface 31b as an insertion end. Then, the adapter device 30 inserted into the disc recording / reproducing device is positioned and mounted on the cartridge mounting portion by engaging the pair of positioning pins of the cartridge mounting portion with the positioning holes 37a and 37b, and recording / reproducing of the optical disc 201 is performed. It becomes possible.

  According to the adapter device 30 as described above, the disc recording / reproducing device for the first disc cartridge 100 is mounted by inserting the second disc cartridge 200 into the storage portion 33 serving as a mounting portion by inserting the second disc cartridge 200 from the insertion / removal port 32. Therefore, the convenience of the second disk cartridge 200 can be improved.

  The adapter device 30 may also be provided with the shutter member 21 and the lock member 28 as shown in FIG.

It is a perspective view of the adapter apparatus for 2nd disc cartridge to which this invention was applied. It is a perspective view of the adapter device for the 2nd disc cartridge provided with the shutter member. It is a perspective view of the adapter apparatus for 2nd disc cartridges which can insert a 2nd disc cartridge by a slide. FIG. 3 is a perspective view of a first disk cartridge. FIG. 6 is a perspective view of a second disk cartridge. FIG. 5 is a plan view comparing the outer shapes of a first disk cartridge and a second disk cartridge.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adapter apparatus, 2 Adapter main body, 2a Front surface, 2b One side surface, 2c Other side surface, 3 Mounting part, 3a Arc-shaped part, 3b Curved part, 1st opening part, 2nd opening part, 6a, 6b Positioning Pin, 7 opening for removal, 8 drop-off prevention piece, 8a locking projection, 9 peripheral wall, 10 recess, 11a, 11b positioning hole, 20 shutter member, 22 shutter part, 23 mounting part, 24 guide part, 25 extension piece, 26 engaging piece, 27 guide groove, 28 lock member, 28a attaching piece, 28b elastic piece, 28c attaching pin, 28d engaging recess, 30 adapter device, 31 adapter body, 31a front face, 31b one side face, 31c other side face, 31d Rear surface, 33 storage portion, 33a arcuate portion, 34 first opening portion, 35 second opening portion, 36 drop-off prevention piece, 37a, 37b Hole

Claims (5)

An adapter body having a shape that matches the outer shape of the first disk cartridge;
A mounting portion on which a second disk cartridge having an outer shape different from that of the first disk cartridge is positioned and mounted;
A drop-off prevention piece that is formed on the outer peripheral portion of the mounting portion and engages with the second disk cartridge mounted on the mounting portion to prevent the drop-off from the mounting portion;
A first opening formed in the mounting portion corresponding to an opening for driving the disk rotation formed in the bottom surface of the second disk cartridge;
A disk cartridge adapter device comprising: a second opening formed in the mounting portion corresponding to an opening for recording and / or reproduction formed in a bottom surface of the second disk cartridge.   2. The disk cartridge adapter device according to claim 1, wherein the mounting portion further includes a positioning pin that engages with a positioning hole formed in a bottom surface portion of the second disk cartridge.   2. The disk cartridge adapter device according to claim 1, wherein the mounting portion is further formed with an opening for removing the second disk cartridge mounted on the mounting portion.   2. The disk cartridge adapter device according to claim 1, wherein the adapter main body is further provided with a shutter member that opens and closes the second opening so as to be movable along the side surface.   5. The disk cartridge adapter device according to claim 4, wherein the adapter body is further provided with a lock member for locking the movement of the shutter member.

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