JP3004103U - Disk cartridge adapter - Google Patents

Abstract

(57) [Abstract] [Purpose] The optical disc is housed in a cartridge case so that it can be driven by chucking it with the same disc clamp device, and it has excellent sealing performance, no protrusions, and stability when placed. Provided is a disk cartridge adapter which is excellent in storage property and storability. [Structure] An adapter case 10 having a spindle hole in which a disk cartridge 11 in which an optical disk 13 is housed in a cartridge case 12 is removably housed, a shutter 17 attached to the adapter case 10, and an inside of the adapter case 10. A clamp area setting member 18 for setting the clamp area of the optical disk 13 to a predetermined area, and a clamp area setting member 18 on the bottom surface of the adapter case 10 so as not to interfere with the disk cartridge 11 when the shutter 17 is closed. It has a fixing member 19 for fixing to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disc cartridge adapter in which a disc cartridge, which stores a disc-shaped recording medium such as an optical disc in a cartridge case, is removably accommodated in an adapter case, and particularly to a current optical disc called a CD-ROM. The present invention relates to a disc cartridge adapter for enabling chucking and driving a next-generation compact optical disc called a 5-inch type with the same mechanism as an alternative.

[0002]

[Prior art]

 There are various types of optical discs capable of optically recording / reproducing information with a light beam such as a laser beam, and a typical example thereof is a CD-ROM as a read-only disc. All of the current optical disk drive devices for driving this CD-ROM are dedicated drives for driving only the CD-ROM.

On the other hand, in recent years, development of a next-generation compact optical disc called a 3.5-inch type has also been underway. In parallel with this, various optical disk drive devices for 3.5-inch type optical disks are being sought, but this is also a dedicated drive for driving only 3.5-inch type optical disks.

The reason why the optical disk drive is developed as a dedicated drive for a specific optical disk is that, for example, a CD-ROM and a 3.5-inch type optical disk both employ magnetic chucking. However, the clamp area (clamp radius, clamp height) is different according to the standard, and the turntable for CD-ROM is the spindle of the cartridge case in which the 3.5-inch type optical disc is stored. The diameter is larger than that of the hole, and the same turntable has a CD-ROM and 3. This is because it is substantially impossible to chuck a 5-inch type optical disc.

Therefore, as described in, for example, Japanese Patent Application Laid-Open No. 2-172054, in order to drive two types of disk-shaped recording media having different sizes with the same spindle motor, each disk-shaped recording is performed. Disc clamping devices have been proposed which have two rotating table members for respectively mounting media. However, this disc clamp device requires a mechanism for moving the turntable and a mechanism for identifying the disc for selecting the turntable. For this reason, there is a problem that the structure is complicated and it is difficult to miniaturize the device, and that the rotating portion becomes heavy and the current consumption of the spindle motor increases.

On the other hand, Japanese Patent Laid-Open No. 61-54083 discloses a disc-shaped information recording medium storage case for allowing the same disc to be loaded in different playback devices. However, in this configuration, a holder 13 that serves as an adapter for adjusting the disc clamping heights regardless of the playback device is provided outside the case composed of the upper lid 1 and the casing 2. Since the case is not fitted, the case is not tightly sealed, and the holder 13 is protruding, so that the stability and storage when placed is poor.

[0007]

[Problems to be solved by the device]

 As described above, in the conventional disc clamp device provided with two rotary table members in order to be able to drive two types of disc-shaped recording media having different sizes by the same spindle motor, the turntable moving mechanism and the disc identification device are used. Since a device is required, it is not possible to reduce the size and power consumption of the device, and the case where an adapter for mounting the same disk on different playback devices is provided outside the case There was a problem that the airtightness was poor and the stability and storability when placed were poor.

Therefore, an object of the present invention is to store disc-shaped recording media in a cartridge case so that different types of disc-shaped recording media can be chucked and driven by the same disc clamping device having a simple mechanism, and It is to provide a disk cartridge adapter that has excellent sealing performance, has no protruding parts, and has good stability and storage when placed.

[0009]

[Means for Solving the Problems]

 To achieve the above object, a disk cartridge adapter according to the present invention accommodates a disk cartridge in which a disk-shaped recording medium is housed in a cartridge case in an attachable / detachable manner, and an adapter case having a spindle hole. A shutter for opening and closing the spindle hole, and an adapter case movably provided in the adapter case in a direction perpendicular to the disc-shaped recording medium. A clamp area setting member for setting a clamp area that is different from the clamp area of a disc-shaped recording medium having a different standard from the disc-shaped recording medium, and a shutter provided in the adapter case and the shutter is closed. When the clamp area setting material is Characterized by comprising a fixing means for fixing the predetermined position where it does not interfere with the cartridges.

Further, the present invention provides the fixing means on the bottom surface of the adapter case, and when the shutter is closed, it is biased by the shutter to mechanically fix the clamp area setting member on the bottom surface of the adapter case. It is characterized by being configured.

Further, the present invention is characterized in that the fixing means is configured to fix the clamp area setting member on the bottom surface of the adapter case with a spring material when the shutter is closed.

Further, the present invention is characterized in that the fixing means is structured such that when the shutter is closed, the clamp area setting member is magnetically attracted and fixed on the bottom surface of the adapter case.

[0013]

[Action]

 By using the disc cartridge adapter according to the present invention, it is possible to set the clamp areas of different types of discs, that is, the clamp radius and the clamp height to the respective clamp areas, and with a simple mechanism such as CD-ROM and 3.5. Both inch type optical disks can be mounted in the disk drive by using the same disk clamp device.

Further, the disc cartridge adapter according to the present invention has a clamp area setting member provided in the adapter case, and thus has a good sealing property, and is stable and storable when the adapter is placed.

Further, according to the present invention, when the shutter is closed, the clamp area setting member is fixed at a position where it does not interfere with the disk cartridge, for example, on the bottom surface of the adapter case. When it is inserted or conversely taken out from the adapter case, the clamp area setting material does not interfere with the disk cartridge, and the optical disk cartridge can be smoothly inserted and removed.

[0016]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a sectional view showing an embodiment of a disk cartridge adapter of the present invention. In FIG. 1, a first optical disk cartridge (for example, 3.5 inch optical disk cartridge) 11 is removably housed in an adapter case 10 which is an outer casing of the disk cartridge adapter. The first optical disk cartridge 11 has a cartridge case 12 in which a first optical disk 13 is rotatably housed. The first optical disk 13 is, for example, a laminated / double-sided 3.5-inch optical disk. Center hubs 14a and 14b made of thin metal plates are provided on both sides of the central portion of the first optical disk 13, and these center hubs 14a and 14b are provided with center holes 15a and 15b for center axis positioning. It has been opened. Further, spindle holes 16a and 16b are provided on both surfaces of the central portion of the cartridge case 12.

The adapter case 10 communicates with the spindle holes 16a and 16b, and irradiates a laser beam for information recording / reproducing onto a first optical disk 13 from a recording / reproducing optical system (not shown) to record / reproduce information. It has an access window for performing the operation and a slidable shutter 17. The shutter 17 closes the spindle holes 16a and 16b and the access window by a shutter spring (not shown) when the optical disk cartridge 11 is not used, and opens them only when the optical disk cartridge 11 is used. The adapter case 10 is formed in a flat box shape having the same shape and size as the cartridge case of the second optical disk cartridge (for example, a CD-ROM cartridge), that is, the same thickness and vertical and horizontal dimensions. .

A clamp area setting member 18 is provided on the bottom of the adapter case 10 so as to be positioned above the shutter 17 in the closed state as shown in the figure. Further, when the shutter 17 is closed, the clamp area setting member 18 is provided. A fixing member 19 for mechanically fixing 18 on the bottom surface of the adapter case 10 is provided. The clamp area setting member 18 is formed in a ring shape in this example, has an outer diameter slightly larger than the inner diameter of the spindle hole 16b, and has a thickness corresponding to the clamp height of the first optical disk 14. . Further, a flange portion with which the fixing member 19 is engaged is formed on the outermost peripheral portion of the clamp area setting member 18.

In this example, the fixing member 19 is rotatably provided with a shaft 19a parallel to the surface of the optical disc 13 as a fulcrum. One end of the shaft 19a is a pressing arm 19b and the other end thereof is a locking claw 19c. Have respectively. When the shutter 17 is closed as shown in FIG. 2, the locking claw 19c of the fixing member 19 is pushed up by the shutter 17 so that the pressing arm 19b presses the flange portion of the clamp area setting member 18, The clamp area setting member 18 is fixed to the bottom surface of the adapter case 10. Therefore, in this state, when the optical disk cartridge 11 is inserted into the adapter case 10 or, conversely, is taken out from the adapter case 10, the clamp area setting member 18 does not interfere with the optical disk cartridge 11 and the optical disk cartridge 11 is smoothly moved. It can be inserted and removed.

FIG. 2 is a simplified cross-sectional view of essential parts showing a state in which the disc cartridge adapter of FIG. 1 is attached to a disc drive device by a disc clamp device which is also used with a second optical disc cartridge described later. A center pin 22 is fixed to a spindle motor 21 that rotates the optical disk 13, and a flange 23 for positioning the optical disk is provided around the center pin 22. A ring-shaped permanent magnet 24 is embedded in the flange 23 so as to surround the center pin 22. Further, in the flange 23, a taper cone 25 having a taper portion engaged with the inner peripheral portion of the first optical disk 13 and a coil spring 26 for pushing the taper cone 25 are embedded.

When the disc cartridge adapter is attached to the disc drive device by the disc clamp device of FIG. 2, the shutter 17 is simultaneously opened by the shutter drive mechanism (not shown). With the opening operation of the shutter 17, the shutter 17 is separated from the locking claw 19c of the fixing member 19, so that the clamp area setting member 18 is released from the regulation by the fixing member 19, and the cartridge case of the optical disk cartridge 11 is released as shown in the figure. It becomes possible to move within 12.

In the disc clamp device, the center hub 14b is attracted by the permanent magnet 24, and the center pin 22 is engaged with the center hole 15b of the center hub 14b to position the center axis of the optical disc 13. The flange 23 positions the optical disc 13 in height by way of the clamp area setting member 18 moved into the cartridge case 12.

Embodiment 2 FIG. 3 is a sectional view showing another embodiment of the disk cartridge adapter of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and only different points will be described. In this embodiment, a spring material (coil spring) 31 is used as a fixing means for fixing the clamp area setting member 19 to the bottom surface of the adapter case 10 with the shutter 17 closed. The spring member 31 is provided at several positions above the flange of the clamp area setting member 19 and between the cut-and-raised portion 10a of the bottom plate of the adapter case 10. When the shutter 17 is closed as shown in the figure, the clamp area setting member 19 is biased by the spring member 31 and pressed against the bottom surface of the adapter case 10 to be fixed. Therefore, in this state, when the optical disk cartridge 11 is inserted into the adapter case 10 or, conversely, is taken out from the adapter case 10 as in the embodiment of FIG. 1, the clamp area setting member 18 interferes with the optical disk cartridge 11. It is possible to obtain an effect that the optical disc cartridge 11 can be smoothly inserted / removed without slipping.

FIG. 4 is a simplified cross-sectional view of essential parts showing a state in which the disc cartridge adapter of FIG. 3 is attached to a disc drive device by a disc clamp device which is also used with a second optical disc cartridge described later. The same parts as those in FIG. 3 are designated by the same reference numerals and only the differences will be described. In this embodiment, when the disc cartridge adapter is attached to the disc drive device by the disc clamp device of FIG. 4, the shutter 17 is opened by the shutter drive mechanism (not shown), and the center hub 14b is attracted by the permanent magnet 24 of the disc clamp device. Then, the spring member 31 is compressed as shown in the figure, and the clamp area setting member 18 moves into the cartridge case 12 of the optical disk cartridge 11. In the disc clamp device, the center pin 22 is engaged with the center hole 15b of the center hub 14b to position the center axis of the optical disc 13, and the flange 23 is used to set the clamp area set in the cartridge case 12. The height position of the optical disk 13 is determined via the member 18.

Embodiment 3 FIG. 5 is a sectional view showing another embodiment of the disk cartridge adapter of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and only different points will be described. In the present embodiment, the permanent magnet 32 is used as a fixing means for fixing the clamp area setting member 19 to the bottom surface of the adapter case 10 with the shutter 17 closed. In this example, the permanent magnets 32 are attached to two or several places on the upper surface (inner side surface) of the shutter 17, or are formed in a ring shape and attached to the upper surface of the shutter 17. When the shutter 17 is closed as shown in the figure, the clamp area setting member 19 is attracted by the permanent magnet 32 and is pressed and fixed to the bottom surface of the adapter case 10. Therefore, in this state, when the optical disk cartridge 11 is inserted into the adapter case 10 or conversely is taken out from the adapter case 10 in the same manner as in the embodiment of FIGS. 1 and 3, the clamp area setting member 18 is attached to the optical disk cartridge 11. There is no interference, and the effect that the optical disk cartridge 11 can be smoothly inserted and removed can be obtained.

FIG. 6 is a simplified cross-sectional view of essential parts showing a state in which the disc cartridge adapter of FIG. 5 is attached to a disc drive device by a disc clamp device shared with a second optical disc cartridge described later. The same parts as those in FIG. 3 are designated by the same reference numerals and only the differences will be described. In this embodiment, when the disc cartridge adapter is mounted on the disc drive by the disc clamp device of FIG. 6, when the shutter 17 is opened by a shutter drive mechanism (not shown), the permanent magnet 32 attached to the shutter 17 is released. Since the clamp area setting member 18 is retracted together with the permanent magnet 32, the clamp area setting member 18 is released from the regulation by the permanent magnet 32 and can be moved into the cartridge case 12 of the optical disk cartridge 11 as shown in the figure.

In the disc clamp device, the center hub 14b is attracted by the permanent magnet 24, and the center pin 22 is engaged with the center hole 15b of the center hub 14b to position the center axis of the optical disc 13. The flange 23 positions the optical disc 13 in height by way of the clamp area setting member 18 moved into the cartridge case 12.

Fourth Embodiment FIG. 7 is a sectional view showing another embodiment of the disk cartridge adapter of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and only different points will be described. In this embodiment, the permanent magnet 33 is used as a fixing means for fixing the clamp area setting member 19 to the bottom surface of the adapter case 10 with the shutter 17 closed. Unlike the fifth embodiment, the clamp area setting member 18 is attached to two or several places on the bottom surface (the surface facing the shutter 17) or is formed in a ring shape and attached to the bottom surface of the clamp area setting member 18. It is included. When the shutter 17 is closed as shown in the figure, the clamp area setting member 19 is pressed against the bottom surface of the adapter case 10 and fixed by the permanent magnet 33 and the shutter 17 attracting each other. Therefore, in this state, when the optical disk cartridge 11 is inserted into the adapter case 10 or, conversely, is taken out from the adapter case 10 in the same manner as in the embodiment shown in FIGS. The optical disk cartridge 11 can be smoothly inserted and removed without interfering with the cartridge 11.

FIG. 8 is a simplified cross-sectional view of essential parts showing a state in which the disc cartridge adapter of FIG. 7 is mounted on a disc drive device by a disc clamp device which is also used with a second optical disc cartridge described later. The same parts as those in FIG. 3 are designated by the same reference numerals and only the differences will be described. In this embodiment, when the disc cartridge adapter is mounted on the disc drive by the disc clamp device of FIG. 8, when the shutter 17 is opened by a shutter drive mechanism (not shown), the shutter 17 is attached to the bottom surface of the clamp area setting member 18. Since the permanent magnet 33 is separated from the permanent magnet 33, it can be moved into the cartridge case 12 of the optical disk cartridge 11 as shown in the figure.

In the disc clamp device, the center hub 14b is attracted by the permanent magnet 24, and the center pin 22 is engaged with the center hole 15b of the center hub 14b to position the center axis of the optical disc 13. The flange 23 positions the optical disc 13 in height by way of the clamp area setting member 18 moved into the cartridge case 12.

FIG. 9 is a simplified view showing a configuration of a second optical disk cartridge (eg, a CD-ROM cartridge) 50 and a state in which the second optical disk cartridge 50 is mounted on a disk drive device by a disk clamp device shared with the above-mentioned disk cartridge adapter. It is a fragmentary sectional view. The second optical disk cartridge 50 has a second optical disk (5 inch CD-ROM) 52 housed in a cartridge case 51.

On the other hand, a center pin 22 is fixed to a spindle motor 21 that rotates an optical disc 52, and a flange 23 for optical disc positioning is provided around the center pin 22. A ring-shaped permanent magnet 24 is embedded in the flange 23 so as to surround the center pin 22. Further, inside the flange 23, a taper cone 25 with which the taper portion engages with the inner peripheral portion of the optical disk 52, and a coil spring 26 for pushing the taper cone 25 are embedded.

When the second optical disk cartridge 50 is mounted on the disk drive device by the disk clamp device of FIG. 9, the small diameter portion 23a of the flange 23 engages with the central hole 52a of the optical disk 52 to position the central axis of the optical disk 52. Further, the large diameter portion 23b of the flange 23 is inserted into the spindle hole 51a of the cartridge case 51, and the height of the optical disc 52 is positioned by the large diameter portion 23b.

[0034]

[Effect of device]

 As described above, according to the present invention, it is possible to set the clamp area of a different type of disc to the clamp area defined for each disc, and for example, a CD-ROM and a 3.5-inch type optical disc can be formed with a simple mechanism. Both of them can be attached to the disk drive by using the same disk clamp device.

Further, the disc cartridge adapter according to the present invention has good clamping performance because the clamp area setting member is provided in the adapter case, and the stability and storability when the adapter is placed are good.

Further, according to the present invention, when the shutter is closed, the clamp area setting member is fixed at a position where it does not interfere with the disk cartridge, for example, on the bottom surface of the adapter case. When inserting or conversely taking it out from the adapter case, the clamp area setting part does not interfere with the disk cartridge, it enables smooth insertion and removal of the optical disk cartridge, and there is no risk of damaging the cartridge. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of a disk cartridge adapter according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the disc cartridge adapter of FIG. 1 is attached to a disc drive device by a disc clamp device.

FIG. 3 is a cross-sectional view illustrating the structure of a disk cartridge adapter according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state in which the disc cartridge adapter of FIG. 3 is attached to a disc drive device by a disc clamp device.

FIG. 5 is a cross-sectional view illustrating a configuration of a disk cartridge adapter according to another embodiment of the present invention.

6 is a cross-sectional view showing a state in which the disc cartridge adapter of FIG. 5 is attached to a disc drive device by a disc clamp device.

FIG. 7 is a cross-sectional view illustrating a structure of a disk cartridge adapter according to another embodiment of the present invention.

8 is a cross-sectional view showing a state in which the disc cartridge adapter of FIG. 7 is attached to a disc drive device by a disc clamp device.

FIG. 9 is a sectional view showing a state in which a second optical disk cartridge is mounted on a disk drive device by a disk clamp device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Adapter case 11 ... 1st optical disk cartridge 12 ... Cartridge case 13 ... 1st optical disk 14 ... Center hub 15 ... Center hole 16 ... Spindle hole 17 ... Shutter 18 ... Clamp area setting member 19 ... Fixing member 21 ... Spindle motor 22 ... Center pin 23 ... Positioning flange 24 ... Permanent magnet 25 ... Taper cone 26 ... Coil spring 31 ... Spring material 32 ... Permanent magnet 33 ... Permanent magnet 51 ... Second optical disk cartridge 52 ... Cartridge case

Claims (5)

[Scope of utility model registration request] 1. An adapter case having a spindle hole for accommodating a disc cartridge, in which a disc-shaped recording medium is accommodated in a cartridge case, and a spindle hole attached to the adapter case for opening and closing the spindle hole. And a shutter provided in the adapter case so as to be vertically movable with respect to the disc-shaped recording medium, and a clamp area of the disc-shaped recording medium in the cartridge case is disc-shaped recording of a standard different from that of the disc-shaped recording medium. A clamp area setting member for setting a predetermined clamp area different from the medium clamp area, and a predetermined position provided in the adapter case so that the clamp area setting member does not interfere with the disc cartridge when the shutter is closed. Fixing means for fixing to Disc cartridge adapter, characterized in that. 2. A first disk-shaped recording medium housed in a first cartridge case having a spindle hole of a predetermined diameter, and a spindle hole having a diameter larger than that of the spindle hole of the first cartridge case. A disc cartridge adapter for mounting a second disc-shaped recording medium housed in a second cartridge case to a disc drive by the same disc clamp device, wherein the first disc-shaped recording medium is a cartridge. An adapter case that accommodates a disc cartridge that is housed in a case so as to be insertable and removable and that has a spindle hole, a shutter that is attached to the adapter case, and that opens and closes the spindle hole; 1 is provided so as to be movable in the vertical direction with respect to the disc-shaped recording medium, A clamp area setting member for setting a clamp area of the first disk-shaped recording medium to a predetermined clamp area different from the clamp area of the second disk-shaped recording medium, and a shutter provided in the adapter case, A disc cartridge adapter, comprising: fixing means for fixing the clamp area setting member at a predetermined position where it does not interfere with the disc cartridge when closed. 3. The fixing means is provided on the bottom surface of the adapter case, and is biased by the shutter when the shutter is closed to mechanically fix the clamp area setting member on the bottom surface of the adapter case. The disk cartridge adapter according to claim 1 or 2, characterized in that: 4. The disk cartridge according to claim 1, wherein the fixing means fixes the clamp area setting member on the bottom surface of the adapter case with a spring material when the shutter is closed. adapter. 5. The fixing means for fixing the clamp area setting member to the bottom surface of the adapter case by attracting the clamp area setting member with a magnetic force when the shutter is closed. Disk cartridge adapter.