JPH05166357A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To prevent contamination in a magnetic disk device by removing dust stuck on components, especially, dust which cannot be removed even after cleaning previous to assembly and dust which is generated at the time of driving. CONSTITUTION:A magnetic disk 1 rotated by a spindle 2, a magnetic head 5 records/reproduced in/from the magnetic disk 1 and a carriage 3 moves/ positions the magnetic head 5 are supported and included in a base plate 4 formed in a case-shape. Also, an electrostatic filter 7 is formed on the inner wall of the base plate 4 and dust left at the time of assembly and dust which detaches from the surface of members in the magnetic disk device and files in the device are absorbed by the electrostatic filter 7 then the amount of the dust is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device, and more particularly to a magnetic disk device provided with a dustproof mechanism in the magnetic disk device.

[0002]

2. Description of the Related Art A conventional magnetic disk device, as shown in FIG. 2, includes a magnetic disk 1 mounted on a spindle 2,
A magnetic head 5 for recording / reproducing, an arm 6 for holding the magnetic head 5, and a carriage 3 for positioning the magnetic head 5 are provided, and these are supported and enclosed in a case-shaped base plate 4 and sealed. ing.

Then, the magnetic head 5 is floated in a minute gap by an air flow generated by rotating the magnetic disk 1 at a high speed to magnetically perform recording / reproduction. At the time of assembling, in order to prevent an accident in which dust enters the gap between the magnetic head 5 and the magnetic disk 1 that are floating with a minute gap and damages the recording medium on the surface of the magnetic disk 1, After cleaning the components of the disk device, they were assembled into the device in a clean room.

[0004]

However, in this conventional magnetic disk device, cleaning was performed to remove the dust adhering to the surface of the member before assembly, but even if the cleaning is performed, the dust is removed. I couldn't completely remove it. Therefore, when dust that has not been removed by cleaning and that adheres to the member is separated from the surface of the member when vibration occurs due to the operation of the magnetic disk device, etc., the dust damages the recording medium on the surface of the magnetic disk. However, there is a problem that the recorded information may be lost.

Therefore, an object of the present invention is to remove dust remaining during assembly and dust generated during the subsequent operation to prevent damage to the magnetic disk surface due to dust.

[0006]

In order to solve such a problem, the present invention is directed to a magnetic disk rotated by a spindle, a magnetic head for recording / reproducing with respect to the magnetic disk, and a moving magnetic head. In a magnetic disk device in which a moving positioning mechanism for positioning is supported and included in a base plate formed in a case shape, an electrostatic filter is provided on the inner wall surface of the base plate.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a sectional view showing a magnetic disk device according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 is a magnetic disk mounted on a spindle 2, 5 is a magnetic head for magnetically recording and reproducing, and 3 is movement for positioning and moving an arm 6 supporting the magnetic head 5 and the magnetic head 5. It is a carriage as a positioning mechanism.

Reference numeral 4 denotes a case-shaped base plate that supports and encloses the members such as the magnetic disk 1 and the magnetic head 5. An electrostatic filter 7 is attached to the inner wall surfaces of the base spray and 4.

Therefore, when assembling the magnetic disk device according to this embodiment, dust enters the gap between the magnetic head 5 and the magnetic disk 1 which are floating with a minute gap therebetween, and the recording on the surface of the magnetic disk 1 is performed. In order to prevent the accident of damaging the medium, the magnetic disk device components are cleaned and then assembled in a clean room.

In this state, when the magnetic disk device is driven, the magnetic head 5 is floated in a minute gap by an air flow generated by rotating the magnetic disk 1 at high speed to magnetically perform recording / reproduction.

In this case, even if there is dust left during assembly, the dust is adsorbed by the electrostatic filter 7 because it is present. In addition, the electrostatic filter 7 also adsorbs dust that separates from the surface of the base plate 4 due to vibration generated by the operation of the magnetic disk device and the like. The dust adhering to the fibers of the electrostatic filter 7 is strongly adsorbed to the fibers due to the electrostatic charge added to the fibers, and therefore does not come off from the fibers again.

[0013]

As described above, according to the magnetic disk device of the present invention, since the electrostatic filter is attached to the inner wall surface of the base plate having the largest surface area among the components, dust and dust remaining during assembly can be reduced. The amount of dust that separates from the surface of the members of the magnetic disk device and that scatters inside the device can be adsorbed to reduce the amount, and as a result, accidents involving damage to the magnetic head and magnetic disk caused by the scattered dust This has the effect of reducing the probability of occurrence of.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a magnetic disk device according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view showing a conventional magnetic disk device.

[Explanation of symbols]

 1 magnetic disk 2 spindle 3 carriage 4 base plate 5 magnetic head 6 arm 7 electrostatic filter

Claims (1)

[Claims] A magnetic disk rotated by a spindle, a magnetic head for recording / reproducing with respect to the magnetic disk, and a moving positioning mechanism for moving and positioning the magnetic head are supported and contained in a case-shaped base plate. In the above magnetic disk device, an electrostatic filter is provided on the inner wall surface of the base plate.