JPH0413824Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] The present invention is a magnetic disk device, in which a means is provided around the position of the carriage support in contact with the cover to seal off dust generated by sliding contact between the carriage support and the cover. This makes it possible to prevent dust from scattering to the magnetic recording medium, head section, etc. due to sliding contact between the carriage support and the cover.

[Industrial application field]

The present invention relates to a magnetic disk device, and is intended to prevent dust from entering between the head and the recording medium and causing a head crash.

Magnetic disk devices are capable of recording and reproducing large amounts of data at high speed, and are often used as external storage devices for data processing systems.

In order to improve data reliability, such external storage devices require measures to prevent head crashes and the like.

[Conventional technology]

FIG. 3 is a diagram for explaining the conventional technology.

In FIG. 3, the magnetic recording medium 21 is a base 26
It is mounted on a spindle 27 which is rotatably supported via a bearing 28, and is rotated by a drive motor at a desired rotation speed.

The carriage 23 is equipped with a head 22 for recording/reproducing the magnetic recording medium 21, and is rotatably supported at both ends by a carriage support 25 attached to a base 26 via bearings 38. . This carriage 23 is rotated by a carriage drive motor 39, and the head 22 is moved and positioned on a predetermined track on the magnetic recording medium 21.

The cover 24 is removably provided on the base 26 so as to surround the magnetic recording medium 21, the head 22, and the carriage 23. In addition, the cover 24 is attached to the carriage support 2 in order to prevent vibrations caused by the rotation of the carriage 23.
5 is configured to contact the cover 24.

[Problem that the invention attempts to solve]

In the conventional configuration shown in FIG. 3, since the carriage support 25 and the cover 24 are in contact with each other, contact sliding occurs due to vibration of the carriage support 25.
When the plating on the carriage support comes off and dust is generated, and this dust is scattered and interposed between the magnetic recording medium 21 and the head 22, the flying height of the head 22 from the magnetic recording medium 21 is extremely small.
This has the disadvantage that head crashes occur and damage the magnetic recording medium 21, making it impossible to record/reproduce data. As shown in Fig. 4, the magnetic disk head levitates above the magnetic disk disk due to the lifting force generated by the airflow caused by the rotation of the magnetic disk disk, and its flying height is 0.3~
If we assume that the head is the size of a jumbo jet aircraft, it will fly at a height of about 10 centimeters. Therefore, if foreign matter such as dust gets between the head and the medium, the flying posture will be impaired, the head and the medium will come into contact, and the extremely thin magnetic recording material will be destroyed, causing a serious problem in which data cannot be reproduced. wake up

The present invention has been devised in consideration of these points, and an object of the present invention is to provide a magnetic disk device that can prevent dust from scattering.

[Means for solving problems]

FIG. 1 is a diagram showing the principle of the present invention.

In FIG. 1, 1 is a magnetic recording medium rotatably supported on a base 16, 2 is a head that performs recording/reproduction on the magnetic recording medium 1, 3 is a carriage on which the head 2 is mounted, and 4 is a magnetic recording medium. Recording medium 1
and a cover removably provided on the base body 16 so as to surround the carriage 3;
The carriage support is configured such that one side is fixed to the base 16 and the other is in contact with the cover 4. In the magnetic disk device according to the present invention, the cover 4 and the carriage support 5 are rotatably supported. A ring-shaped elastic member 20 is provided on the circumference of the abutting portion, and the ring-shaped member 20 is held between the cover 4 and the carriage support 5.

[Effect]

By providing a ring-shaped elastic member around the circumference of the area where the cover and the carriage support come into contact, it is possible to prevent dust generated by sliding between the cover and the carriage support from entering the magnetic recording medium side, and to prevent the dust from entering the magnetic recording medium side. Absorbs vibrations from the carriage support to reduce dust generation.

Therefore, according to the present invention, dust does not enter between the head 2 and the magnetic recording medium 1 and damage the magnetic recording medium 1, thereby making it possible to improve the quality of the magnetic disk device.

〔Example〕

FIG. 2 is a diagram illustrating an embodiment of the present invention.

In FIG. 2, 11 is a magnetic disk rotatably supported on a base 16, 12 is a head for performing recording/reproduction on the magnetic disk 11, 13 is a carriage for mounting the head 12, Reference numeral 14 is a cover removably provided on the base body so as to surround the magnetic disk 11, head 12, and carriage 13. Reference numeral 15 is a cover that extends from the base body 16 to rotatably support the carriage 13, and is in contact with the cover on the other side. The carriage support 15 and the cover 14 are connected by press-fitting an elastic body, in this embodiment a rubber ring 20, which is shaped to seal the area around the position of the carriage support 15 in contact with the cover 14. Dust generated by sliding contact is sealed.

Therefore, it is possible to prevent dust from scattering to the magnetic disk 11, head 12, etc.

[Effect of idea]

As described above, according to the present invention, it is possible to provide a high-quality magnetic disk device with a simple configuration, which prevents damage to the magnetic recording medium due to dust inclusions, and is practical and useful. .

[Brief explanation of the drawing]

Figure 1 is a diagram showing the principle of the present invention, Figure 2 is a diagram explaining an embodiment of the invention, Figure 3 is a diagram explaining the conventional technology, and Figure 4 is a diagram explaining the floating state of the magnetic head. This is a diagram for In FIG. 1, 1 is a magnetic recording medium, 2 is a head, 3 is a carriage, 4 is a cover, and 5 is a carriage support.

Claims (1)

[Claims for Utility Model Registration] A carriage 3 equipped with a head 2 that performs recording/reproduction on a magnetic recording medium 1;
A magnetic disk device comprising a carriage support 5 rotatably supporting the carriage support 5, one of which is fixed to the base 16, and the other of which is in contact with the cover 4. A magnetic disk device characterized in that a ring-shaped elastic member 20 is provided on the circumference of the part where the support 5 contacts, and the ring-shaped elastic member 20 is held between the cover 4 and the carriage support 5. .