JPH08221968A - Disk cartridge and disk device - Google Patents

Abstract

PURPOSE: To efficiently scavenge dust in the air moving with the rotation of a disk and also to miniaturize a disk device. CONSTITUTION: A circulation filter 25 is attached in the cartridge main body 21 of a disk cartridge 2. The filter 25 is arranged proximately to the disk 22. The filter 25 is arranged in parallel with or to be inclined by a specified angle to the radial direction of the disk 22 so that the air moving with the rotation of the disk 22 may pass all over the surface. Since the air in the cartridge main body 21 circulates in the cartridge main body 21, the dust in the air is successively and efficiently scavenged by the filter 25. The disk device 1 need not be provided with the circulation filter, so that space for setting the filter and space for guiding the air to the filter are reduced, thereby miniaturizing the disk device 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge and a disk device suitable for application to a rotary disk type storage device such as a magnetic disk or a magneto-optical disk. More specifically, the present invention relates to a disc cartridge and a disc device which are intended to be miniaturized by providing a filter means in the cartridge.

[0002]

2. Description of the Related Art A disk device is a large-capacity storage device for an information processing device such as a computer. Figure 6
Is a conventional disk device 50 and this disk device 50
The structure of the disk cartridge 70 used in FIG. The magnetic disk device 50 has a chassis 51, in which a spindle motor 52, a rotary actuator 53, a lamp 5 are provided.
4 etc. are attached. The spindle motor 52 includes a cartridge body 71 of the disc cartridge 70.
A magnet 55 for mounting the disk 72 accommodated therein is attached. A circulation filter 64 is provided at an appropriate position on the chassis 51.

The rotary actuator 53 is provided with an arm 56 having a predetermined length, which is rotatably attached to a rotary shaft 57 of the chassis 51. A suspension 67 having appropriate elasticity is attached to the left end of the arm 56 in the figure, and a floating head slider 58 is attached to the lower side of the end. Floating head slider 58
A head core (not shown) for recording or reproducing information on the disk 72 is attached to the disk.

A hemispherical dimple 59 is provided downward from the floating head slider 58. Also,
A coil 60 is provided at the right end of the arm 56. A magnet 61 is arranged on the chassis 51 below the coil 60. Coil 6
A magnetic field is generated by applying a predetermined current to 0, and this magnetic field acts on the magnet 61 to rotate the arm 56 by a predetermined angle.

The ramp 54 is used as a retracting means for the rotary actuator 53 while the disk 72 is stopped, and has an arcuate inclined surface 62 on which the dimple 59 can slide.
Is provided. At the start of use of the disk 72, the rotary actuator 53 retracted on the ramp 54 is rotationally driven counterclockwise. At this time, the hemispherical dimples 59 at the tip of the suspension 67 form the inclined surface 6
2 and the floating head slider 58 slides on the disk 72.
Move up.

At the end of use of the disk 72, the rotary actuator 53 is driven to rotate clockwise.
Also at this time, the dimple 59 slides on the inclined surface 62, and the floating head slider 58 separates from the disk 72. That is, while the disk 72 is stopped, the floating head slider 58 is retracted onto the ramp 54 so that the floating head slider 58 and the head core do not contact the disk 72 and other parts. The lamp 54 is fixed to the chassis 51 with screws 63 or the like.

The circulation filter 64 is for collecting dust and the like in the air that moves as the disk 72 rotates. For example, a non-woven fabric is formed in a rectangular shape, and both ends of the circulation filter 64 are holding portions 65 of the chassis 51. , 66.

In the disc cartridge 70, a disc 72 is rotatably housed in a cartridge body 71. An opening 73 for inserting the rotary actuator 53 into the cartridge body 71 and a door 74 for opening and closing the opening 73 are provided at the front end of the cartridge body 71. As shown in FIG. 7, the door 74 is rotatably attached to the cartridge body 71.

In this disc device 50, as shown in FIG.
When is inserted, the door 74 is opened by an appropriate opening means during the insertion. Then, the disk cartridge 70
Is inserted to a certain extent, the tip of the lamp 54 and the tip of the rotary actuator 53 are attached to the cartridge body 71.
It is inserted into the inside through the opening 73. When the disc cartridge 70 is inserted to the end, the spindle motor 52 is then rotated and the disc 72 is rotationally driven, for example, in the counterclockwise direction. Next, the rotary actuator 53 is rotationally driven counterclockwise, and the floating head slider 58 moves onto the disk 72. At this time, a downward biasing force is applied to the floating head slider 58 by the suspension 67.

At this time, the floating head slider 5 receives the air moving with the rotation of the disk 72.
Buoyancy is generated in 8. The floating head slider 58 floats to a height where this buoyancy matches the urging force of the suspension 67. As a result, a predetermined gap is created between the floating head slider 58 and the head core and the disk 72,
Floating head slider 58 and head core and disk 72
It will not collide with and get scratched.

Further, the circulation filter 64 includes a disk 72.
It is arranged at a position where the air that moves with the rotation of is passed, and the dust in the air that passes through the circulation filter 64 is collected. As a result, the air received by the floating head slider 58 is cleaned so that dust does not enter between the floating head slider 58 and the disk 72. This is because the flying height of the floating head slider 58 is, for example, about 200 nm and is easily affected by dust and the like.

[0012]

By the way, in the above-described conventional disk device 50, a space for installing the circulation filter 64 and a space for introducing air to the circulation filter 64 must be provided outside the disk cartridge 70. Therefore, it is difficult to reduce the size of the disk device 50. This is a disadvantage in view of the recent trend toward miniaturization. Further, since the circulation filter 64 can be arranged only at a position avoiding the rotary actuator 53, the lamp 54, etc., the circulation filter 64 is arranged at a position relatively distant from the disk 72, so that the dust in the moving air can be efficiently removed. I couldn't catch well.

In view of the above, the present invention has solved the above-mentioned problems, and it is possible to efficiently collect dust in the moving air and further reduce the size of the disk cartridge and the disk cartridge. It proposes a disk device.

[0014]

In order to solve the above-mentioned problems, in the disk cartridge according to claim 1,
It is characterized in that a filter means for collecting dust contained in the air is provided in a passage space of the air which moves with the rotation of the disk.

According to another aspect of the disk apparatus of the present invention,
The disk cartridge is provided with a filter means for collecting dust contained in the air, in a space through which air moves as the disk rotates.

[0016]

In the present invention, the dust in the air that moves with the rotation of the disk is collected by the filter means in the disk cartridge. Since the filter means is in the disc cartridge, it can be placed close to the disc.

[0017]

Embodiments of the disk cartridge and disk device according to the present invention will now be described in detail with reference to the drawings. The same parts as those described above are designated by the same reference numerals and detailed description thereof is omitted.

FIG. 1 shows the structure of a disk device 1 and a disk cartridge 2 according to the present invention. A chassis 51 is provided in the disk device 1, and a spindle motor 52, a rotary actuator 53, and a lamp 54 are attached to the chassis 51. A magnet 55 for mounting the disk 22 is attached to the rotary shaft of the spindle motor 52. In the rotary actuator 53, an arm 56 having a predetermined length is attached to a rotary shaft 57. A suspension 67 having a predetermined elasticity is attached to the left end of the arm 56 in the figure.

At the tip of the suspension 67, as shown in FIG.
8 is attached so as to be displaceable in all directions. The floating head slider 58 is provided with a head core 69 for recording or reproducing information on the disk 22. Further, a hemispherical dimple 59 is provided downward in front of the floating head slider 58 of the suspension 67. On the other hand, a driving coil 60 is provided at the right end of the arm 56. A magnet 61 is attached to the chassis 51 so as to face the coil 60. The lamp 54 is fixed to the chassis 51 with screws 63 and the like, and an inclined surface 62 on which the dimple 59 of the rotary actuator 53 can slide is provided on the upper surface side.
The operation of each unit of the disk device 1 described above is the same as that of the disk device 50 shown in FIG. 6, and therefore the description thereof is omitted here.

The disc cartridge 2 is provided with a cartridge body 21.
A disk 22 which is a recording medium is rotatably housed therein. Further, at the front end of the cartridge body 21, a rotary actuator 53 is provided inside the cartridge body 21.
23 for inserting the tip of the lamp and the tip of the lamp 54
Is provided. To open and close the opening 23, a door 24 is rotatably attached to the tip of the cartridge body 21.

A circulating filter 25, which is a filter means, is attached to the inside of the cartridge body 21 to collect dust in the air that moves as the disk 22 rotates. The circulation filter 25 is, for example, a non-woven fabric formed in a rectangular shape, and is held by the first holding portion 26 and the second holding portion 27 provided in the cartridge body 21 so as not to be displaced.

That is, as shown in FIG. 3, the first holding portion 26 and the second holding portion 27 are provided with vertical grooves 28 and 29 having a width slightly wider than the thickness of the circulation filter 25. Both end portions of the circulation filter 25 are inserted into 28 and 29 and are stably held. The first holding portion 26 and the second holding portion 27 are arranged at a predetermined interval, and the air passes through the circulation filter 25 arranged at this interval. That is, the circulation filter 25 includes the disk 22.
It is attached in a state parallel to the radial direction of the cartridge or inclined by an appropriate angle with respect to the radial direction, and further, is mounted on the upper and lower inner surfaces of the cartridge body 21 with substantially no gap. As a result, the air that moves with the rotation of the disk 22 passes through the entire surface of the circulation filter 25, and the dust in the air that has passed therethrough can be efficiently collected.

In this disc device 1, when the disc cartridge 2 is inserted into the chassis 51 as shown in FIG. 4, the door 24 is opened by an appropriate opening means during the insertion. When the disc cartridge 2 is inserted to some extent, the tip of the ramp 54 and the tip of the rotary actuator 53 are inserted inside from the opening 23 of the cartridge body 21. Then, when the disc cartridge 2 is inserted to the end and an operation start instruction is received, the disc 22 in the cartridge body 21 is rotationally driven by the spindle motor 52 (FIG. 1) of the disc device 1. After the disk 22 reaches a predetermined number of rotations, the rotary actuator 53 is rotationally driven counterclockwise,
The floating head slider 58 moves onto the disk 22.

At this time, buoyancy is generated in the floating head slider 58 by the air moving with the rotation of the disk 22, and the floating head is moved to a height at which this buoyancy and the downward urging force of the suspension 67 of the rotary actuator 53 match. The slider 58 floats. In this state, access is performed and the floating head slider 58, and thus the head core 69, seeks a predetermined track. As a result, information is recorded on or reproduced from the disc 22.

During the rotation of the disk 22, the air around the disk 22 moves together with the disk 22. Further, here, since the circulation filter 25 is arranged inside the cartridge main body 21 at a position close to the disc 22, the air having a high flow velocity flowing around the disc 22 passes through the circulation filter 25. As a result, the dust in the air is efficiently collected and cleaned by the circulation filter 25.

Since the cartridge body 21 is substantially sealed except for the opening 23 and the like, most of the air that has moved with the rotation of the disk 22 circulates in the cartridge body 21. Therefore, the air in the cartridge body 21 is sequentially cleaned by the circulation filter 25, and most of the dust in the air is collected and cleaned. The air thus cleaned flows into the lower side of the floating head slider 58 as the disk 22 rotates, so that dust may enter between the floating head slider 58 and the head core 69 and the disk 22. It is possible to prevent the floating head slider 58, the head core 69 and the disk 22 from being scratched.

Here, since the circulation filter 25 is provided in the disc cartridge 2, it is not necessary to provide the circulation filter on the disc device 1 side. Therefore, the installation space for the circulation filter and the space for introducing the air to the circulation filter can be reduced, so that the disk device 1 can be made smaller than the conventional one. Further, as described above, since the circulation filter 25 is arranged at a position close to the disc 22, most of the air in the cartridge body 21 that moves with the rotation of the disc 22 passes through the circulation filter 25 sequentially. The dust in the air can be efficiently collected and cleaned.

FIG. 5 shows the construction of a removable disk device 3 to which the present invention is applied. This disk device 3 is provided with a connector 31 for transmitting and receiving signals to the outside at the rear end of the disk device 1 shown in FIG. 1, and the above-mentioned disk cartridge 2 can be used. The removable disk device 3 can be inserted into and removed from a slot 4 provided in an information processing device such as a computer.

The slot 4 is provided with a connecting portion 41 to which the connector 31 of the disk device 3 is connected. In addition, the operation lever 42 arranged laterally is provided in the slot 4.
And a rotary lever 43 that is rotated by the operating lever 42, and the pressing portion 4 is provided at the right end of the rotary lever 43.
4 are provided. When the disk device 3 is taken out from the slot 4, the rotary lever 43 is rotated clockwise by pushing the operation lever 42, and the pressing portion 44 of the rotary lever 43 pushes the disk device 3 outward. There is.

Also in this removable disk device 3,
Disk cartridge 2 provided with circulation filter 25
By using the circulation filter, the disk device 3
Since it is not necessary to provide it on the side, miniaturization is possible.

[0031]

As described above, according to the present invention, the filter means is provided inside the disk cartridge. Therefore, according to the present invention, since the filter means can be arranged close to the disk, it is possible to efficiently collect and clean the dust in the air that moves with the rotation of the disk. Further, since it is not necessary to provide a space for installing the filter means and a space for introducing air to the filter means on the disk device side, it is possible to reduce the size of the disk device.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a disc cartridge and a disc device according to the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a view on arrow B of FIG.

FIG. 4 is a diagram showing an operation of the embodiment.

FIG. 5 is a diagram showing a configuration of another embodiment.

FIG. 6 is a diagram showing a configuration of a conventional example.

FIG. 7 is a sectional view taken along the line CC of FIG. 6;

FIG. 8 is a diagram showing an operation of a conventional example.

[Explanation of Codes] 1 disk device 2 disk cartridge 3 disk device on the side of attachment / detachment 4 slot 21 cartridge body 22 disk 25 circulating filter 51 chassis 52 spindle motor 53 rotary actuator 58 floating head slider

Claims (3)

[Claims] 1. A disk cartridge, wherein a filter means for collecting dust contained in the air is provided in an air passage space that moves with the rotation of the disk. 2. A disk device comprising a disk cartridge provided with a filter means for collecting dust contained in the air in a passage space of the air which moves with the rotation of the disk. 3. The disk device according to claim 2, wherein the disk device main body is attachable to and detachable from a data processing device that records or reproduces information on the disk.