JPH0457280A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To unnecessitate assembly in a clean room by selectively providing plural filters in respective rooms in an enclosure so as to catch dust in the first room, and holding these filters by a rotary body to be operated from the outside of the rooms. CONSTITUTION:An enclosure 1 for housing components is composed of a first room 4, where a magnetic head 2 and a disk 3 are built in, and a second room 6 partitioned from this first room 4 by a partition board 5. In this enclosure 1, two air filters 7 and 8 to catch dust in the room 4 are selectively provided in the respectively rooms 4 and 6 as mentioned above. These both filters 7 and 8 are held by a rotary body 9 to be operated from the outside of both rooms 4 and 6. Thus, when operating the magnetic disk, the disk 3 is rotated after assembly and an air current is formed in the room 4 so as to catch the dust generated in the room 4 in the case of assembly. Then, the air filters 7 and 8 in the respective rooms 4 and 6 are exchanged by the rotary body 9. Namely, the air filter 8 is housed in the room 4 and the air filter 7 is housed in the room 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk drive having a function of trapping dust generated in a head/disk housing chamber with a filter.

[Conventional technology]

In recent years, ultra-compact HDDs have adopted the C3S (contact start-stop) method and the RL (ramp load) method, which loads the head after the disk starts rotating, in order to improve earthquake resistance. .

Conventionally, this type of magnetic disk device has been provided with a casing that houses a head and a disk, and a filter that is provided inside the casing to trap dust generated during use.

Assembling a magnetic disk device configured in this way is as follows:
This is done in a clean room to prevent dust from entering the housing.

Dust generated during use is captured by a filter inside the housing. At this time, the head is not in contact with the disk, and the disk is rotated by a drive mechanism (not shown), thereby creating an air flow within the casing.

[Problem to be solved by the invention]

By the way, conventional magnetic disk drives are equipped with only one filter, which is generated inside the housing during use.
For this reason, a clean room was required during assembly. That is, in the absence of a clean room, if one filter were to trap dust generated inside the housing during assembly, the ability to trap dust generated during use would be degraded. As a result, the equipment required for assembly becomes large-scale, resulting in a problem of increased costs.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a magnetic disk device that does not require assembly in a cream room, thereby reducing costs.

[Means to solve the problem]

A magnetic disk device according to the present invention includes a case containing a head and a disk, and a case having a first chamber in which the head and the disk are housed, and a second chamber defined from the first chamber. A plurality of filters are selectively provided in each chamber to trap dust in the first chamber within the housing, and these filters are held by a rotary body that can be operated from the outside.

[For production]

In the present invention, the plurality of filters can trap dust generated in the first chamber of the housing during assembly and use.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, the structure etc. of this invention will be explained in detail by the Example shown in the figure.

FIG. 1 is a vertical sectional view schematically illustrating a magnetic disk device according to the present invention, and FIG. 2 is an enlarged sectional view taken along the line nn in FIG. 1. In the figure, the reference numeral 1 denotes a housing for storing component parts, which includes a first chamber 4 in which a magnetic head 2 and a disk 3 are built, and a first chamber 4 defined by the first chamber 4 and a partition plate 5. It is formed by a casing having two chambers 6 inside thereof and consisting of a rectangular portion and an arcuate portion in plan view. In the housing 1, two air filters 7.8 for capturing dust in the first chamber 4 are selectively provided in each chamber 4.6. Both filters 7.8 are held by a rotating body 9 which can be operated from outside the compartment 4.6. Note that 10 is a motor that is provided outside the housing 1 and drives the magnetic head 2.

In a magnetic disk device configured in this way, 2
The two air filters 7.8 can trap dust generated in the first chamber 4 of the housing 1 during assembly and use. In this case, after assembly, the disk 3 is rotated to form an air flow within the first chamber 4, and to trap dust generated within the first chamber 4 during assembly. Then, the air filter 7.8 in each chamber 4.6 is replaced by the rotating body 9. That is, the air filter 8 is housed in the first chamber 4, and the air filter 8 is housed in the second chamber 6.
The air filter 7 is housed inside.

Therefore, in this embodiment, the assembly is large-scale and a lean room is not required.

In addition, in this embodiment, two air filters 7.8
Although the present invention is not limited to this, for example, the number may be three or four, and the number can be changed as appropriate.

Moreover, it goes without saying that the plan view shape of the housing 1 in the present invention is not limited to the above-described embodiment.

〔Effect of the invention〕

As explained above, according to the present invention, a housing containing a head and a disk is provided with a first chamber in which the head and disk are housed, and a second chamber defined from the first chamber. A plurality of filters are selectively provided in each chamber to capture dust in the first chamber. The filter can trap dust generated in the first chamber of the housing during assembly and use. Therefore, since assembly within the cream room is not required, costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view schematically illustrating a magnetic disk device according to the present invention, and FIG. 2 is an enlarged sectional view taken along the line nn in FIG. 1. 1...Housing, 2...Head, 3...Disk, ・First chamber, ・Second chamber, 7°・Air filter, ・Rotating body.

Claims (1)

[Claims] In a magnetic disk drive including a housing containing a head and a disk, the housing includes a first chamber in which the disk and the head are housed, and a second chamber defined from the first chamber. A plurality of filters are selectively provided in each of the chambers to capture dust in the first chamber, and these filters are held by a rotating body that can be operated from the outside. A magnetic disk device characterized by: