JPH06267183A - Disk drive device - Google Patents

Abstract

PURPOSE:To discriminate the kind of cartridge on the side of the disk drive device by providing a sensor on the side of the disk drive device and providing a member to be detected in a required position on the cartridge. CONSTITUTION:The disk drive device is provided with a reflecting type optical sensor 35. On the other hand, the cartridge 13 is provided with a reflecting body 14, etc., of the member to be detected, to which identification information is imparted, in a position opposite to the sensor 25. Consequently, when the cartridge 13 housing a disk is inserted into the disk drive device, the kind of cartridge can be discriminated via the sensor 25 on the side of the disk drive device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive device capable of identifying the type of cartridge containing a disk.

[0002]

2. Description of the Related Art Generally, in a medium exchange type (rim bubble) disk drive device, a disk having a high capacity is demanded, and a disk having a high capacity has been developed. In addition, series for each capacity is also in progress. Along with this, it has been desired that the cartridges of the past low-capacity type discs can be read, and the disc drive apparatus also needs to identify the cartridges in order to cope with this.

Also in the optical disc drive device, various standards and types of optical discs have been developed, but it is convenient and desired to use optical discs of various standards in the same optical disc drive device. In order to realize this, it is necessary to identify the cartridge of the optical disc with the optical disc drive device.

When identifying the cartridge, it is considered that the cartridge shape is changed for each kind of cartridge and the cartridge is identified by the difference in shape, but this requires a die cost and is disadvantageous in terms of cost. Therefore, as disclosed in Japanese Patent Laid-Open No. 1992069/1990, a cartridge case is provided with a hole, and this hole is solved by moving the tab to change the opening state of the hole.

[0005]

However, the means for moving the tab may cause the user to move the tab by mistake, and in such a case, the disk drive device may not operate normally. In addition, the tab positioning structure complicates the mold structure for molding parts and increases the cost.

Further, when an optical sensor is used to detect the opening state of the hole, it is of a transmissive type, and since the light emitting element and the light receiving element are arranged to face each other with the cartridge interposed therebetween, the disk drive device is thick type. Turn into.

A switch 11 as shown in FIG. 14 is generally used as a mechanical sensor. The left side of FIG. 14 shows the switch in the off state, and the right side of FIG. 14 shows the switch in the on state. In the case of such a switch, as shown on the left side of FIG. 14, when the switch 11 is off, the lever 12 is in a protruding state, so that the height of the switch 11 is about 10 mm higher and the cartridge 13 is inserted. When this is done, the cartridge 13 becomes a mechanism that is maintained at a position higher than this height, and the disk drive device becomes thicker.

Further, such a mechanical sensor may be caught and damaged during assembly work or the like.

It is an object of the present invention to provide a disk drive device capable of identifying a cartridge easily and at low cost without changing the mold and without hindering thinning.

[0010]

DISCLOSURE OF THE INVENTION In a disk drive device of the present invention, a reflective optical sensor is provided on the disk drive device main body side, and a reflector having identification information provided at a position facing the reflective optical sensor on the cartridge side. Is provided.

Further, a plurality of reflection type optical sensors are arranged, and the size or number of the reflectors provided at the positions facing each other is different for each kind of cartridge. In this case, a reflector is provided at least at one of the facing positions of the reflective optical sensor. Then, the reflector is formed of a reflective tape.

On the other hand, a pair of contact terminals made of a conductive elastic material is provided on the main body side of the disk drive device, and a conductive member provided with identification information is provided on the cartridge side at a position facing the contact terminals.

A plurality of pairs of contact terminals are arranged, and the size or number of the conductive members at the positions facing each other differs depending on the type of the cartridge. In this case, the conductive member is formed of a conductive tape.

When discriminating between two types of cartridges, the loading mechanism portion that comes into contact with the cartridge on the main body side of the disk drive device is made of a non-conductive member and provided with a pair of contact terminals made of a conductive elastic body. One of the two kinds of cartridges is made of a conductive material and the other is made of a non-conductive material.

Further, a magnetic sensor is provided on the main body side of the disk drive device, and a magnet having identification information is provided on the cartridge side at a position facing the magnetic sensor. A plurality of magnetic sensors are arranged on the main body side of the disk drive device, and the size or the number of magnets provided at the positions facing each other differs depending on the type of cartridge.

[0016]

As a result, in the present invention, when the cartridge containing the disk is inserted into the disk drive device, the identification code is attached to the cartridge side.
The disc drive device reads the identification code to identify the cartridge.

[0017]

EXAMPLE An example of the present invention will be described below. Figure 1
Shows the cartridge 13 of the present invention, and in FIG. 1, the back surface of the cartridge 13 is shown. Cartridge 1
A member to be detected 14 provided with different identification information according to the standard of the cartridge 13 is attached to the back surface of the cartridge 3. The armature 15 of the cartridge 13 is supported by an armature clamp 16, and the cartridge 13 main body has a positioning hole 17 and a write protect plug 18 for positioning at the time of insertion into the disk drive device.
Is provided.

FIG. 2 shows the disk drive device 19 and the cartridge 13. The cartridge 13 is inserted into a door 21 provided on the front panel 20 of the disk drive device 19. The front panel 20 is provided with an eject button 22 and a start / stop button 23 for taking out the cartridge 13.

Next, FIG. 3 is a partial detailed view of the inside of the disk drive device 19. The deck 24 of the disk drive device 19 is provided with a sensor unit 25 corresponding to the position of the detected member 14 of the cartridge 13.

Now, assuming that the cartridge 13 is inserted, the portion A which is the end portion of the cartridge 13 shown in FIG.
It abuts on the bent portion 27 of the slide plate 26 of FIG.
Then, the slide plate 26 slides in the arrow direction by the insertion force of the cartridge 13. Then, the protrusion 28 of the slide plate 26 contacts the pin 30 of the latch plate 29, and the latch plate 29 starts to rotate about the support shaft 32 in the direction opposite to the direction biased by the spring 31. Eventually, the latch pin 33 becomes the carrier 33.
Since the force of the springs 34, 35 is applied in the direction of the arrow from the notch of the carrier 33, the carrier 33 is
Move in the direction of force 4,35.

Then, the roller (not shown) of the receiver engaged with the cam portion 36 of the carrier 33 is guided downward as the cam portion 36 of the carrier 33 moves, and the receiver is received. To lower the cartridge 13 held by
The positioning holes 17 of the cartridge 13 engage with the reference pins 37 (two places) attached to the deck 24, and
The reference receiving pin 38 is positioned in both the height and the horizontal direction. At the same time, the armature 15 integrated with the disc of the cartridge 13 is chucked by the rotary motor 39.

After the cartridge 13 is set in this way, the disk of the cartridge 13 is rotated by the rotation motor 39, and the information of the track written in a circle on the disk is rotated and transferred to the voice coil motor. Drive the arm that supports the magnetic head to
The optical head is moved to a track and positioned so that information on the track can be recorded, reproduced, and erased.

FIG. 4 shows the first embodiment of the present invention, and shows the details of the detected member 14 of the cartridge 13 and the sensor portion 25 of the disk drive device 19.

A plurality of reflection type optical sensors are provided as the sensor unit 25 on the main body side of the disk drive device 19,
On the side of the cartridge 13, as a detected member 14, a reflector provided with identification information is provided at a position facing the plurality of reflective optical sensors. The reflective optical sensor includes a pair of light emitting element 40 and light receiving element 41.

In the first embodiment, the sensor section 26 is provided with four sets of reflective optical sensors each including a light emitting element 40 and a light receiving element 41 as shown in FIG.

The light emitting element 40 and the light receiving element 41, which are reflection type optical sensors, are attached to a circuit board 42 as shown in FIG. 4, and the circuit board 42 is attached to the deck 24 with screws 43.

Next, the circuit board 42 and the main board (not shown) attached to the back surface of the deck 24 are connected to the deck 24.
And is connected by a cable or FPC.

The surface of the member to be detected 14 is made of a reflector, and the size of the reflector is the first as shown in FIG.
Reflective Optical Sensor-and Second Reflective Optical Sensor-
5, the two reflective optical sensors, the first reflective optical sensor and the second reflective optical sensor whose reflectors are located at the top, are arranged as shown in FIG. It will work. That is, the light of the light emitting element 40 of the two reflection type optical sensors having the reflector positioned above is reflected by the reflector, and the reflected light is received by the light receiving element 41. In this case, there is no reflector above the third and fourth reflective optical sensors, which are the third reflective optical sensor and the fourth reflective optical sensor, and the light of the light emitting element 40 is emitted. Since the light is scattered without being reflected, the light is not detected by the light receiving element 41.

Therefore, by changing the size of the reflector, it is possible to make several kinds of identification. When there are four reflective optical sensors, five types of identification information can be obtained. Further, for example, as shown in FIG. 6, a reflector is used as a first reflection type optical sensor and a third reflection type optical sensor.
When the two parts are arranged so as to face each other, the identification information can be defined by the binary system, so that the identification information can be increased without increasing the number of reflective optical sensors.

The reflection type optical sensor includes a light receiving element 41.
If a photo reflector or the like integrated with the light emitting element 40 is used, the size and the size can be further reduced. On the other hand, the detected member 14 can also provide identification information depending on the presence or absence of a black mark on a white background. it can.

Next, a second embodiment will be described. This second
In this embodiment, regardless of the type of the cartridge 13, the cartridge
It is formed so that the first reflective optical sensor operates when the trench 13 is set. That is, by providing the detected member 14 at the position where the first reflective optical sensor faces the cartridges 13 of all kinds, the cartridge 13 is misset as shown in FIG. Body 1
If 4 is tilted or floated, this can be detected. Therefore, it is possible to prohibit the head from moving to the disk based on this information.

In the first embodiment described above, a reflector is used as the member to be detected 14, but the member to be detected 14 can be formed of a reflective tape. The reflection tape is commercially available, is inexpensive, can be manufactured at low cost, and can be easily attached to the cartridge 13.

In the first embodiment, the reflection type optical sensor is provided as the sensor section 25 and the reflector is provided as the detected member 14, but the sensor section 26 is used as the contact terminal and the cartridge 13 is provided. The detected member 14 may be replaced with a conductive member. That is, the cartridge 13
When is set in the disk drive device 19, a switch is formed by the contact terminal and the conductive member.

A third embodiment in this case is shown in FIGS. 8 and 9.
Shown in. FIG. 8 shows the sensor unit 26, which includes the circuit board 4
A contact terminal 44 is attached to the upper surface of 2. Then, this is arranged in the main body of the disk drive device 19. The conductive member 45 is attached at the same position as the shape of FIG. FIG. 9 shows the state of the contacts when the cartridge 13 is set in the disk drive device 19.

In the case of the third embodiment as well, as in the case of the first embodiment, identification information is given by the presence / absence, size, and number of the members to be detected 14, and detection is made by turning ON / OFF the contact terminal 44. It The contact terminal 44 is formed of a conductive elastic member and is attached by the solder 46. The contact terminal 44 has a simple structure, a low component cost, and can be realized at a very low cost.

In the third embodiment, the conductive member 45 is used as the member to be detected 14, but it is also possible to form the member to be detected 14 with a conductive tape. The conductive tape can be easily attached to the cartridge, and it is commercially available and inexpensive, so that the cost can be further reduced.

Next, when the cartridge 13 may be identified by two types, a pair of contact terminals are provided on the side of the disk drive device 19 and the detected member 14 of the cartridge 13 to be inserted is a conductive member or a non-conductive member. There are two types of materials.
That is, at least the contact portion of the loading mechanism portion which comes into contact with the cartridge 13 is constituted by an insulating coated component or a non-conductive member, and the detection portion is a cartridge case arranged by a pair of contact terminals. In the case of the negative electrode, one may be formed of a conductive member and the other may be formed of a non-conductive material so that identification information can be given, and in the case of a conductive member, the contact terminal may detect.

Further, as in the fourth embodiment shown in FIGS. 10 to 12, the sensor portion 26 is a magnetic sensor such as a hall element 47 and the detected member 14 of the cartridge 13 is a thin plate. The magnetic sensor may detect the magnetic flux density of the magnet 48 by replacing the magnet 48 of FIG.

FIG. 10 shows the sensor section 25 on the side of the disk drive device 19 in that case, in which a hall element 47 is attached to the upper surface of the circuit board 42 to form a magnetic sensor. FIG. 11 shows the detected member 14 on the cartridge side. A permalloy 49 is attached around the magnet 48 for magnetic shielding. FIG. 12 is a diagram showing detection (ON) and non-detection (OFF) of the magnetic flux density of the magnet.

Especially when used in a magnetic disk, the card
A par corresponding to the shape of each magnet attached to the trench 13.
This can be dealt with by magnetically shielding the magnetic field of the magnet from reaching the disk by surrounding it with a material having a high magnetic permeability such as Malloy 49.

In the case of this embodiment, since the detecting means on the side of the disk drive device 19 has a structure in which the magnetic flux density is detected by the hall element magnetic sensor, the disk drive device 19 can be made thin. Also, since it is non-contact detection, it is highly reliable.

[0042]

As described above, according to the present invention, since the identification information of the cartridge is fixed by the member to be inspected for each kind of cartridge, the identification information is not changed. . Further, even if the cartridge types are the same, they can be identified.

When a reflector is used as the member to be inspected, it can be attached by attachment, and the shape of the reflector attachment portion of the cartridge is very simple, so the cost is low.

The identification information detecting means is a reflection type optical sensor.
When adopted, it is non-contact, so it is highly reliable and the drive device can be made thinner.

On the other hand, since one sensor can be operated regardless of which kind of cartridge is set, mis-setting such as floating or tilting of the cartridge case can be detected. . This sensor can also be used as a media in switch.

Further, when the member to be detected attached to the cartridge is formed of a commercially available reflection tape or conductive tape, the attachment work is simple and the cost of parts can be remarkably reduced.

When two types of identification are required for the cartridge, the identification information of two types can be provided only by making the material of the cartridge conductive or non-conductive, so that the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an external perspective view of a cartridge of the present invention.

FIG. 2 is an external perspective view showing a cartridge and a disk drive device of the present invention.

FIG. 3 is a perspective view showing a partial internal detail of the disk drive device of the present invention.

FIG. 4 is a perspective view showing a detected member and a sensor unit according to the first embodiment of the invention.

FIG. 5 is an explanatory diagram showing an example of identification in the first embodiment of the present invention.

FIG. 6 is an explanatory diagram showing another example of identification in the first embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an example of identification in the second embodiment of the present invention.

FIG. 8 is a perspective view showing a sensor unit according to a third embodiment of the present invention.

FIG. 9 is an explanatory diagram showing an example of identification according to the third embodiment of the present invention.

FIG. 10 is a perspective view showing a sensor unit according to a fourth embodiment of the present invention.

FIG. 11 is a perspective view showing a detected member according to a fourth embodiment of the present invention.

FIG. 12 is an explanatory diagram showing an example of identification according to the fourth embodiment of the present invention.

FIG. 13 is an explanatory diagram of a conventional mechanical sensor.

[Explanation of symbols]

 11 switch 12 lever 13 cartridge 14 detected member 15 armature 16 armature clamp 17 positioning 18 write protect plug 19 disk drive device 20 front panel 21 door 22 eject button 23 start stop button 24 deck 25 sensor section 26 slide plate 27 bending section 28 protrusion Part 29 Latch plate 30 Pin 31 Spring 32 Spindle 33 Carrier 34, 35 Spring 36 Cam part 37 Reference pin 38 Reference receiving pin 39 Rotating motor 40 Light emitting element 41 Light receiving element 42 Circuit board 43 Screw 44 Contact terminal 45 Conductive member 46 Solder 47 Hall element 48 Magnet 49 Permalloy

Claims (10)

[Claims] 1. A disc drive device having a function of identifying a disc housed in a cartridge, wherein a reflective optical sensor is provided on the disc drive device main body side, and the reflective optical sensor is opposed to the cartridge side. A disk drive device characterized in that a reflector having identification information provided at a position is provided. 2. A plurality of the reflection type optical sensors are arranged on the main body side of the disk drive device, and the size or the number of the reflectors on the cartridge side provided at the positions facing each other differs depending on the kind of the cartridge. The disk drive device according to claim 1, wherein the disk drive device is a disk drive device. 3. The disk drive device according to claim 2, wherein the reflector is provided at at least one of opposing positions of the reflective optical sensor. 4. The disk drive device according to claim 1, wherein the reflector is formed of a reflective tape. 5. A disk drive device having a function of identifying a disk stored in a cartridge, wherein a pair of contact terminals made of a conductive elastic body is provided on the disk drive device body side, and a pair of contact terminals are provided on the cartridge side. Is a disk drive device having a conductive member provided with identification information at a position facing the contact terminal. 6. A plurality of the pair of contact terminals are arranged on the main body side of the disk drive device, and the size or the number of the conductive members on the cartridge side provided at the opposing positions is determined for each kind of cartridge. 6. The disk drive device according to claim 5, wherein the disk drive device is different from the above. 7. The disk drive device according to claim 5, wherein the conductive member is formed of a conductive tape. 8. A disk drive device having a function of identifying a disk stored in a cartridge
When identifying the type of cartridge, the loading mechanism portion on the disk drive device main body side that comes into contact with the cartridge is formed of a non-conductive member and is provided with a pair of contact terminals formed of a conductive elastic body. A disk drive device, wherein one of the cartridges is made of a conductive material and the other is made of a non-conductive material. 9. A disk drive device having a function of identifying a disk stored in a cartridge, wherein a magnetic sensor is provided on the disk drive device body side.
A disk drive device comprising a magnet provided with identification information at a position facing the magnetic sensor on the cartridge side. 10. A plurality of the magnetic sensors are arranged on the main body side of the disk drive device, and the size or the number of magnets provided at the positions facing each other is different depending on the kind of the cartridge. The disk drive device according to claim 9.