JP2856414B2 - Magnetic disk drive - Google Patents

Description

The present invention relates to a magnetic disk drive.

[Conventional technology]

In a normal magnetic disk drive, a plurality of magnetic disk media and a plurality of magnetic heads are placed in a container body, and a ring-shaped rubber-like sealing material having a cross section that is nearly rectangular or elliptical is sandwiched and sealed with a cover. doing. Here, the rubber-like sealing material may be a natural rubber sealing material or a synthetic rubber sealing material.

[Problems to be solved by the invention]

The conventional device having the above-described configuration has no problem in that it can be hermetically sealed, but has a problem in other aspects. That is, whether the sealing material used is a natural rubber or a synthetic rubber is relatively hard, there is a drawback that the main body is deformed at the time of tightening to easily impair the performance and characteristics of the magnetic disk drive. .

SUMMARY OF THE INVENTION An object of the present invention is to provide a high-quality magnetic disk device in which the disadvantages of the conventional magnetic disk device described above are eliminated and performance and reliability are improved.

[Means for solving the problem]

According to the present invention, in the magnetic disk device in which a plurality of magnetic disk media and a plurality of magnetic heads are housed in a container main body and sealed with a rubber-like sealing material sandwiched between covers, the rubber-like sealing material Is a seal member having a U-shaped cross section that opens along a direction parallel to the side surface of the container body of the cover.

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing the structure of one embodiment of the present invention. In FIG. 1, a magnetic disk medium 1 rotates at a high speed while floating on the surface of a magnetic head 2. The cover 3 and the main body 5 form a space for accommodating a large number of magnetic disk media 1 and the magnetic heads 2 with a ring-shaped rubber seal 4 interposed therebetween. The cross section of the ring of the rubber seal 4 has a rounded U-shape in a free state, unlike FIG. To assemble this device, the rubber seal 4 and the stopper 7 are placed on the main body 5, the cover 3 is put on, and the screws 6 are tightened until the cover 3 hits the stopper 7 and stops. As a result, the rubber seal is crushed to a shape close to V as indicated by 7 in FIG. Therefore, sufficient airtightness can be maintained without deforming the main body.

In the above description, the outer shape of the rubber seal 4 is usually circular, but may be quadrangular, and may be any shape as long as it can maintain airtightness when pressed. Although the cross-sectional shape is U-shaped, this is not a strict meaning and is representatively shown.

〔The invention's effect〕

As described above, since the U-shaped rubber seal is used for the magnetic disk device of the present invention, the air-tightness is excellent and the main body is not deformed. Therefore, a highly reliable magnetic disk device that maintains the performance of the magnetic disk device can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of one embodiment of the present invention. Explanation of symbols: 1 is a magnetic disk medium, 2 is a magnetic head, 3 is a cover, 4 is a rubber seal, 5 is a main body, 6 is a screw, and 7 is a stopper.

Claims (1)

(57) [Claims] 1. A magnetic disk drive comprising a plurality of magnetic disk media and a plurality of magnetic heads housed in a container main body and sealed with a rubber-like sealing material sandwiched between covers.
A magnetic disk drive, wherein the rubber-like sealing material is a sealing material having a U-shaped cross section that opens along a direction parallel to the side surface of the container body of the cover.