JPH05314723A - Disk cartridge and disk driving device - Google Patents

Abstract

PURPOSE:To easily use the disk cartridge housing plural disks capable of optical recording and magnetic recording by connecting cases incorporating an optical information reproducing only CD and a magnetic information recording and reproducing only FD respectively with a hinge and confirming the inserting state on the side of the driving device. CONSTITUTION:The CD case 2 incorporating the CD 1 and the FD case 8 incorporating the FD 7 are connected with the hinge 10, and these are positioned by a positioning spring 13. At this time, in order to make the cases 2 and 8 the horizontal overlapping state with each other, the case 2 is provided with a strut having a columnar protrusion and a different strut having a columnar groove hole for press-fitting a pin, and the case 8 is rotated as against the case 2. Thus, the cases 2 and 8 are positioned, and optical information is read by an optical head via a long hole 14 for reading information, while magnetic information is read by a magnetic head via a long hole 22 for reading information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD cartridge, an FD cartridge and a disk drive device thereof.

[0002]

2. Description of the Related Art CD cartridges and FD cartridges are generally used as separate disk cartridges and in separate disk drive devices.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The CD, which is a recording medium of the ROM, has an extremely large storage capacity, but only reproduces the information previously recorded on the CD. Therefore, when it is necessary to record / reproduce new information on the CD, it is necessary to prepare another device and a recording medium to use the CD-ROM and the CD at the same time. Even if another device and a recording medium are prepared to record / reproduce information, the prepared recording medium is used as the C
There was also a problem that it had to be managed in combination with D.

[0004]

The structure of the present invention for solving the above problems is, in a CD cartridge, an FD cartridge connected to the CD cartridge so as to be integrated, and a connecting portion of the two cartridges is hinged. As a support structure, the FD cartridge has a structure that is rotatable with respect to the CD cartridge in a direction perpendicular to the CD and FD surfaces, and has a positioning means in the rotation direction with respect to the two cartridges. Characterize.

Further, the structure of the present invention is a CD-ROM and an FD.
In the disk drive device that uses D as a unit, check the insertion state of the disk cartridge,
If the cartridge is not fully inserted, if the FD cartridge is not properly positioned with respect to the CD cartridge, or if the shutters of the CD and FD cartridges are not fully opened, the optical head and magnetic head should not be operated. Characterize.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1A, 1B and 2
(A) (b), FIG. 3 (a) (b), FIG. 4 (a) (b),
FIGS. 5A, 5B and 5C show a disk cartridge according to an embodiment of the present invention. FIG. 1A is a sectional view of the disk cartridge in a normal storage state, and FIG. 1B is a plan view of the lower surface. Further, FIG. 1A is a cross-sectional view taken along the line AA of FIG.

The CD case 2 containing the CD 1 has a disk 3 rotatably held at the center of the case upper surface 2a. A small disk 4 made of a magnetic material is fixed to the lower surface of the disk 3. Also, the case bottom surface 2b of the CD case 2
Is provided with a circular hole 5 for chucking the CD 1 and transmitting the rotation of the motor, a felt member 6 for preventing dust from entering the inside of the CD case 2, and an elongated hole 14 for reading optical information recorded on the CD 1. ing.

The FD case 8 incorporating the FD 7 has an inner F
A wiping paper 9 for removing dust and the like adhering to the FD 7 is attached to the surface in contact with the D 7, and the dust on the FD 7 is removed by rotating the FD 7. Also,
A hub 19 made of a magnetic material is fastened to the center of the lower surface of the FD 7 for chucking the FD. The FD case 8 is provided with elongated holes 22 for recording and reproducing magnetic information on and from the FD 7 symmetrically with respect to the upper surface and the lower surface, and is covered with a shutter 25 having an elongated hole 25a in the storage state.

The CD case 2 and the FD case 8 are connected to each other by a hinge 10 so as to be rotatable perpendicularly to the CD and FD surfaces. The hinge 10 is mechanically fastened to the lower surface 2b of the CD case by means not shown to be integrated with the CD case, or is integrally resin-molded with the lower surface of the CD case.

3 (a) and 3 (b) show the detailed structure of the hinge 10 part. FIG. 3B is a cross-sectional view taken along the line CC of FIG.

A columnar projection 32 is provided on a column 31 which is integrated with the CD case 2. In addition, a pin 34 is provided on the other support column 33 integrated with the CD case 2.
Is press-fitted and fixed. Then, the FD case 8 has a cylindrical groove hole 35 corresponding to the protrusion 32 and the pin 34, respectively.
36 is provided. Further, the CD case 2 is provided with an arcuate groove 36 that serves as a relief when the FD case 8 rotates in the B direction. Therefore, the FD case 8 can rotate in the B direction with respect to the CD case 2 with the protrusion 32 and the pin 34 as the center of rotation.

In the storage state of the disk cartridge, the hinge 10 and the positioning spring 13 are used to FD the CD case 2.
The case 8 is positioned and held in an overlapping state. That is, in plan view, the FD case 8 is held within the surface of the CD case 2.

At this time, the long hole 14 provided in the CD case 2 for reading the optical information of the CD 1 is covered with the FD case 8 and the recording surface 1a of the CD 1 is not exposed to the outside.

FIG. 4A shows the details of the positioning spring 13. The positioning spring 13 integrated with the CD case 2 is composed of a resin spring 41 and a hemispherical projection 42. On the other hand, F
The D case 8 has a hemispherical groove 43 corresponding to the protrusion 42. From the state shown in FIG.
When rotated in the direction, the side surface 44 of the FD case passes over the protrusion 42 against the spring force of the resin spring 41, and rotates.
In the state of (a), the FD case 8 is positioned with respect to the CD case 2.

Further, the spring force of the resin spring 41 is set to such a magnitude that the FD case can be manually positioned without great resistance, and the FD case cannot be dislocated by its own weight.

Therefore, the FD case 8 connected to the CD case 2 by the hinge 10 is connected to the CD case 2 by the positioning spring 13.
Be positioned against.

2 (a) and 2 (b) are views of the disc cartridge in the state of being inserted into the disc drive device. Figure 2
2A is a side view, and FIG. 2B is a bottom plan view. Figure 2
As shown in (a), the FD case 8 is rotated in the E direction against the spring force of the positioning spring 13, and is rotated until the FD case 8 hits 11 degrees. At this time, the positioning spring 16 having the same structure as the positioning spring 13 presses a not-shown hemispherical groove having the same structure as the groove 43, which is provided on the end face of the FD case 8, and is rotated by 11 and the positioning lever 16. Position the FD case 8 with respect to the CD case 2.

On the other hand, when the disk cartridge is ejected from the disk drive and the storage state shown in FIG. 1 is reached, first, the FD is moved in the direction opposite to E of FIG. 2A against the spring force of the positioning spring 16. The case 8 is rotated, and the case 8 is positioned by 11 and the positioning spring 13.

5 (a), 5 (b) and 5 (c) show the state in which the disc drive device is inserted. 5A and 5B are cross-sectional views taken along the lines G-G and F-F in FIG. 5C, respectively.

First, in the state shown in FIG. 2B, the disc cartridge is inserted into the disc drive device in the H direction.

When the disc cartridge is mounted on a loading unit (not shown) of the disc drive, the disc cartridge moves downward in the M direction in FIGS. 5A and 5B together with the loading unit.

At this time, as shown in FIG. 5A, the chuck 17 having magnetism enters the circular hole 5 of the CD case into the center hole of the CD, and the inclined surface 17a of the chuck aligns the center of rotation of the CD 1 and the spindle motor 18. I do. At the same time, the small disk 4 is attracted to the chuck 17 and the CD 1 is sandwiched and fixed. Therefore, the rotation of the spindle motor 18 is transmitted to the CD1, and the CD1 rotates.

Further, the FD 7 engages with the chuck hub 19 of the FD provided at the center and the magnetic chuck 20 of the spindle motor 21, and the rotation of the spindle motor 21 is transmitted to rotate the FD 7. The positioning of the hub 19 and the chuck 20 and the suction fixing operation are the same as those in a general 3.5 inch FDD, and therefore detailed description thereof will be omitted.

On the other hand, as shown in FIG. 5B, CD1
In the state of FIG. 5C, since the elongated hole 14 for reading information is open, the optical information of is read by the optical head 24.

Further, when the magnetic information of the FD 7 is inserted into the disk drive, the shutter 25 is opened in the direction I by a shutter opening / closing means (not shown), and the slot 22 for reading magnetic information is opened through the slot 25a of the shutter 25. , Writing magnetic information by the magnetic head 23,
Read is executed.

In this way, the CD case 2 and the FD case 8
Since the and are connected by the hinges 10 to form an integrated case, it is possible to utilize the information on the ultra-large capacity CD, and at the same time, record and reproduce new information with a large capacity and at an inexpensive FD.

Further, in the normal storage state of the disc cartridge, it can be compactly stored in the same size as the CD cartridge in plan view.

Further, the disk cartridge of the present invention is F
Since the D case also serves as the shutter of the CD case, the structure is simple and the manufacturing cost is low as compared with the case where the CD cartridge for a general CD-ROM having a shirt and the FD cartridge are used together.

In a normal storage state, the shutter hole of the CD case and the chucking holes of the CD and FD are F.
Since it is covered with the D case, it is unlikely that dust will enter and adhere to the recording surface of the CD or FD.

Further, when reading optical information and magnetic information, each is driven by a dedicated motor and information is processed by a dedicated head, so that the main mechanical portion of the disk drive device is already technically complete. Therefore, it is possible to utilize the achievements of the CD-ROM and FDD mechanisms, which are high in cost and inexpensive. Of course, the CD case 2 and the FD case 8 shown in the present invention can be realized by applying the dimensions of a general CD-ROM CD cartridge and a 3.5-inch FD cartridge, so that the disk cartridge also benefits from the cost of the existing technology. ..

Since the CD and FD information is always managed in a one-to-one correspondence in the integrated case, the disc management is not complicated.

The present invention is also effective when the information reading slots 14 and 22 of the CD case 2 and the FD case 8 are on the sides 2c, 8c and 8d of FIG. 2, respectively.

Further, the present invention is also effective when the FD case 8 is made replaceable by forming the support column 61 and the pin 62 in a screw structure.

The present invention is also effective when the case upper surface 2a and the case lower surface 2b of the CD case 2 have a structure that can be opened and closed like a general CD-ROM cartridge.

(Embodiment 2) FIGS. 6A and 6B show another embodiment of the disk cartridge of the present invention. The configuration of this embodiment is different from that of the first embodiment in that the positioning spring 13 is not provided and the structure of the connecting portion is different.

FIG. 6A is a side view of the vicinity of the connecting portion, and FIG.
(B) shows a LL sectional view.

One of the hinges 60 of the connecting portion between the CD case 2 and the FD case 8 is composed of a pillar 31 and a cylindrical projection 32, and the other is composed of a pillar 61, a pin 62 and a torsion coil spring 63. Also, the protrusion 3 is provided on the FD case 8 side.
2, cylindrical grooves 35 and 6 corresponding to the pins 62, respectively.
6 is provided. Further, both ends 64 and 65 of the arm of the torsion coil spring 63 are fixed to the column 61 and the FD case 8, respectively.

Therefore, the FD case 8 receives a spring force from the torsion coil spring 63 with respect to the CD case 2. Since the spring force in the J direction is constantly applied to the spring 63, the FD
A force that is constantly pressed against the CD case 2 is applied to the case 8, and the case 8 is positioned with respect to the CD case 2.

Insertion into the disk drive device is performed after manually rotating the FD case in the K direction and positioning the FD case 8 with the contact 11 and the positioning spring 16 as in the first embodiment. At this time, the spring force of the positioning spring 16 is set to be stronger than the spring force of the torsion coil spring 63.

Therefore, in the storage state, the FD case 8 is kept in a stable state because the rotational force of the spring is always applied to the CD case 2 by the spring force and the force for positioning is applied.

The present invention is also effective when a spring force is applied in the K direction. In this case, unlike the first embodiment, the positioning spring 16 is not provided.

In this case, when the disc is stored, the FD case is positioned with respect to the CD case by the positioning spring 13 shown in FIG. 1 as in the first embodiment. At this time, the force applied to the FD case constitutes the positioning spring and the above-mentioned torsion coil spring so that the pressing force of the positioning spring 13 is strong.

At the time of insertion into the disk drive, the same state as that of FIG. 2 of the first embodiment is set and then inserted.

(Embodiment 3) This embodiment shows an example relating to claims 3 and 4.

FIG. 7 shows a block diagram of an embodiment of the disk drive device of the present invention. First, a control method for reading the optical information of the CD will be briefly described. The read signal of optical information and the read position information of the disc are externally given to the input 150 of the system controller 121.
Linear motor 1 by system controller 121
14 linearly moves the optical head 24 in the radial direction of the CD 1. The accurate reading position control of the CD 1 is controlled by the feed servo mechanism 115 via the system controller 121. The optical head 24 has a structure that moves in the radial direction of the CD 1.

The position of the optical head 24 is actually the CD
1 in the radial direction, and control in the direction perpendicular to CD1, that is, focus control of the optical head 24 and C
Fine adjustment of D1 in the radial direction, that is, tracking control is necessary. These are performed by the focus / tracking servo mechanism 113.

The optical information obtained by the optical head 24 is E
FM (Eight to Fourteen Modulation) demodulation circuit 11
6 demodulated by CIRC (Cross Interleave Ree
The dsoiomon code) error detection unit 118 and the ECC (error detection and correction) circuit 120 correct even optical information having a partial reading error, and finally the optical information of the CD 1 is output to the output 151. The RAM 119 is a memory that temporarily stores read data, and the data reproduction and correction of these CDs 1 are controlled by the system controller 121.

The spindle motor 18 is mounted on the CD1
To rotate. In controlling the number of rotations of the CD, the optical information read from the CD 1 by the optical head 24 is the EFM demodulation circuit 11
After passing 6, the CLV (Constant Linear Velocity) servo mechanism 117 controls the spindle motor 18.

Next, the control method for FD magnetic recording and reproduction will be described.

The reproduction or recording of the data of the FD 7 is performed via the magnetic head 23. The magnetic head 23 is the arm 1
The head loading / unloading mechanism 132 controls the FD 7 and the magnetic head 23 to be in a contact / non-contact state. Specifically, the magnetic head 23 is in contact with the FD 7 during reproduction and recording of data from the magnetic surface of the FD 7, and is in non-contact in other cases. RAM134
The data to be recorded in the FD 7 and the data to be reproduced are temporarily stored, and finally output to the magnetic information output 152.
The load / unload signal of the magnetic head 23 from the system controller 121 is first received by the system controller 133 on the magnetic recording side, and the signal is transmitted to the head load / unload mechanism 132.

Another role of the system controller 133 on the magnetic recording side is waveform shaping of read data, error detection of read data, and the like. Data error detection can also be processed on the system controller 121 side.

The rotation speed of the FD 7 is controlled by controlling the motor 21 by the system controller 133 on the magnetic recording side.

Since the system controller 121 controls the system controller 133 on the magnetic recording side and also controls each system on the optical information side, mutual operations can be efficiently controlled.

FIGS. 8 (a) and 8 (b) are flow charts showing the operation of each part of the disc cartridge in the disc drive device during the insertion process and the ejection process, respectively.

When the disk cartridge integrated with the hinge is inserted into the disk drive and the loading process is performed, C is used to protect the disk drive and the disk cartridge.
The D case 2 to the FD case 8 are completely rotated and moved from the storage state of FIG. 1 to the position of FIG. 2,
Moreover, it is necessary to confirm that the disc cartridge is completely inserted in the device before proceeding to the next operation.

In the present invention, a semi-automatic loading mechanism for manually inserting the disk cartridge and automatically ejecting the disk cartridge is used in order to inexpensively manufacture the disk drive device.

First, the disc insertion process of FIG. 8A will be described.

First, the disc cartridge is inserted into the disc drive, and it is confirmed that the CD case 2 is completely inserted. If yes, proceed to the next step. If no, the disc cartridge is ejected. (801) Then, it is confirmed that the FD case 8 is completely positioned with respect to the CD case 2 and whether the FD case portion is completely inserted in the device. Also, confirming the insertion of the FD case into the device also confirms at the same time whether the opening of the CD shutter that the FD case also serves is sufficient. If it is not inserted, the disk cartridge must be ejected and the disk cartridge inserted again without proceeding to the next operation. If yes, proceed to the next step. (802) Further, in order to protect the magnetic head 23 for FD, it is confirmed whether or not the shutter 25 of the FD case 8 is completely opened. If it is not opened, the shutter is ejected, and the disk cartridge must be inserted again. .. (803) Next, the FD magnetic head 23 is moved to the long hole 2 of the FD case 8.
When it is completely opposed to the information recording surface of FD7 through 2, the magnetic head goes down with the disk cartridge and CD1 and F
D7 is attached to the chucks 17 and 20 of the respective motors. At the same time when the CD 1 and the FD 7 are mounted on the motor, the magnetic head 23 for the FD is closed to sandwich the FD. This is performed at the end of the disc cartridge inserting operation in order to protect the FD 7 because the FD 7 is soft and easily damaged.

Next, the disc ejection process of FIG. 8B will be described.

When ejecting, when the EJECT button is pressed, the magnetic head 23 for FD first opens to open FD7. Next, the motor is disengaged, the magnetic head 23 for FD and the disk cartridge are lifted up, and after being completely lifted, the magnetic head for FD is disengaged, and the disk cartridge is ejected from the disk drive.

As described above, in the disc drive apparatus of the present invention, the state of inserting the disc and the opening / closing state of the FD shutter are confirmed to proceed to the next operation. Therefore, when the disc is not completely inserted, the shutter is opened. The disk and the disk drive will not be damaged even if it is insufficient.

[0063]

As described above, according to the present invention, C
Since the cartridge containing D and the cartridge containing FD are connected and integrated, a super-large capacity CD can be used and new information can be recorded / reproduced with a large capacity and inexpensive FD.

Further, when a normal disk cartridge is stored, the plane size is the same as that of a CD cartridge, so the storage space is compact.

Further, the disk cartridge of the present invention is F
Since the D case also serves as the shutter of the CD case, the structure is simple and the manufacturing cost is low as compared with the case where the CD cartridge for a general CD-ROM having a shirt and the FD cartridge are used together.

In a normal storage state, the shutter hole of the CD case and the chucking holes of the CD and FD are F.
Since it is covered with the D case, there is no possibility that dust may enter and adhere to the recording surface of the CD or FD.

Further, since the CD and FD information are always managed in a one-to-one correspondence in the integrated case, the disc management is not complicated.

In the disk cartridge and the disk drive device of the present invention, the main mechanical portion is the existing CD-type.
Since the technology of ROM and FDD can be diverted, the result of cost reduction of the above-mentioned device can be utilized.

In addition, since the disk drive device of the present invention checks the insertion status of the disk cartridge and moves to the next operation, when the disk cartridge is incompletely inserted and the shutter is not fully opened. However, it does not damage the disk cartridge or disk drive.

Furthermore, the system and the FD for the optical information side of the CD
Since the system on the magnetic information side of is controlled by a common system controller, efficient control can be realized.

[Brief description of drawings]

FIG. 1 is a diagram showing a storage time of a disc cartridge according to an embodiment of the present invention.

FIG. 2 is a diagram showing when a disc cartridge according to an embodiment of the present invention is inserted into a disc device.

FIG. 3 is a diagram of a hinge portion according to an embodiment of the present invention.

FIG. 4 is a diagram of a positioning spring portion according to an embodiment of the present invention.

FIG. 5 is a view showing a disc cartridge according to an embodiment of the present invention when it is inserted into a disc device.

FIG. 6 is a diagram showing a disk cartridge of another embodiment of the present invention.

FIG. 7 is a block configuration diagram of a disk drive device according to an embodiment of the present invention.

FIG. 8 is an operation sequence diagram of the disk drive device of the present invention.

[Explanation of symbols]

 1, CD 2, CD case 7, FD 8, FD case 10, hinges 13, 16, positioning spring 18, spindle motor 21, spindle motor 23, magnetic head 24, optical head 63, torsion coil spring 121, system controller 133, Magnetic side system controller

Claims (4)

[Claims] 1. An optical information reproduction-only disc (hereinafter referred to as C
A magnetic information recording / reproducing disc (hereinafter referred to as FD) in the CD cartridge.
(Hereinafter referred to as "the cartridge") are connected and integrated, and the connecting portion of the two cartridges has a hinge support structure, and the FD cartridge is rotatable with respect to the CD cartridge in a direction perpendicular to the CD and FD surfaces. A disc cartridge characterized by its structure. 2. A CD cartridge, wherein the CD
The cartridge of FD is connected to the cartridge of No. 1 and integrated, and the connecting portion of the two cartridges has a hinge support structure, and the cartridge of the FD can rotate in the direction perpendicular to the CD and FD surfaces with respect to the cartridge of the CD. Disk cartridge having a different structure and having a positioning means in the rotational direction between the two cartridges. 3. An optical information reproducing apparatus (hereinafter referred to as a CD-ROM) for reading out optically recorded information.
In a disk drive that integrally uses a magnetic recording / reproducing device (hereinafter, referred to as FDD) that magnetically records and reproduces information, the insertion state of the CD cartridge and the FD cartridge is confirmed, and the CD, A disk drive device characterized in that the optical head and the magnetic head are not operated when the FD cartridge is not fully inserted and when the shutter opening of the CD and FD cartridges is insufficient. 4. A CD-R in which an FD cartridge is an integrated disc cartridge which is rotated relative to the CD cartridge in a direction perpendicular to the CD and FD surfaces to position the FD cartridge.
In a disk drive device that uses an OM and an FDD as a unit, the insertion state of the CD cartridge and the FD cartridge is confirmed, and if the CD and FD cartridges are not fully inserted, the position of the FD cartridge with respect to the CD cartridge Insufficient tightening and C
A disk drive device characterized in that the optical head and the magnetic head are not operated when the shutter opening of the D and FD cartridges is insufficient.