JPS6262495A - Magnetic disk recording device - Google Patents

Abstract

PURPOSE:To sweep out dust on an uppermost surface of a magnetic disk to an outer circumference by an effective and a simple method by forming a dust removing mechanism on the uppermost surface of the magnetic disk in an inner surface of an upper cover of a part of a container of the device in an integral work. CONSTITUTION:More than one protruding type ribs 2 equally extending from an inner circumference to an outer circumference along a rotating direction of a spindle motor are formed integrally with an upper cover 1 around an air filter disposed on the upper cover surface of a part of a sealed container of a magnetic disk recording device on an extension of a rotating shaft 8 of the spindle motor for rotating the magnetic disk. Thereby, according to an effect of radial protruding ribs 2 disposed on the upper cover, air gradually flows to the outer circumferential direction from an annular flow and dust is swept off therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dust sweeping mechanism for a magnetic disk recording device.

[Summary of the invention]

The present invention provides a magnetic disk recording device having a floating m magnetic head, in which a dust removal mechanism for the top surface of the magnetic disk is integrally formed inside the upper cover rM that forms a part of the container of the device. It improves the accuracy of the spatial dimensions and simplifies the assembly process and number of parts.

[Prior art]

Dust removal from the top surface of the magnetic disk in conventional magnetic disk recording devices has not been done effectively. For example, when installing a spindle motor between magnetic disk surfaces, by drilling a hole in the knob and part of the disk spacer, air flow is generated from the inner circumference of the magnetic disk toward the outer circumference, effectively sweeping away dust. ing. Another method is to insert a rod called an air spoiler on the surface of each magnetic disk to forcibly sweep the airflow outward.

[Problems and Objectives to be Solved by the Invention] However, in the above-mentioned conventional technology, the above-mentioned air blowing holes are made in the disk clamp plate that presses the top surface of the magnetic disk of the magnetic disk recording device, which is becoming smaller and thinner. Since there is no space to insert the air spoiler rod, the dust on the top surface cannot be effectively swept away. SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to provide a structure for sweeping out dust on the uppermost surface of a magnetic disk to the outer periphery in an effective and simple manner.

[Means for solving problems]

The magnetic disk recording device of the present invention is provided on the upper cover surface forming a part of the airtight container of the magnetic disk recording shaft 1 on the extension of the rotating shaft of the spindle motor that rotates the A1 air disk. 1 that uniformly extends from the inner circumference toward the outer circumference along the rotation direction of the spindle motor.
The present invention is characterized in that a convex rib larger than a book is formed integrally with the upper cover.

[Effect]

According to the above-described structure of the present invention, the convex ribs on the upper cover allow the air flowing in from the air filtration filter on the upper cover to be removed from the inner periphery without providing any special dust sweeping mechanism on the upper surface of the magnetic disk. Dust can be effectively swept away by directing the airflow toward the outer periphery.

〔Example〕

FIG. 1 is a plan view of the inner surface of the upper cover in an embodiment of the present invention.

FIG. 2 is a sectional view showing the positional relationship between the convex ribs of the upper cover shown in FIG. 1 and the top surface of the magnetic disk. It gradually flows toward the outer circumference, and dust is swept away along with it.

[Brief explanation of drawings]

FIG. 1 is a plan view of the inner surface of the upper cover of the present invention. FIG. 2 is a 11yi side view of a magnetic disk recording device having an upper cover structure according to the present invention. FIG. 3 is a sectional view of an embodiment of a conventional air spoiler. 1... Upper cover 2... Convex rib 3... Center point 4... Air filtration filter 5 River... Spindle motor rotation direction 6... ... Disc plate valve 7 ... Disc spacer 8 ... Spindle motor rotation shaft 9 ...
Magnetic disk 10...More than the air flow direction

Claims (1)

[Claims] In a magnetic disk recording device having a spindle motor that rotates a magnetic disk and one or more floating magnetic heads on each surface of the magnetic disk, a part of an airtight container of the magnetic disk recording device is provided on an extension of the rotation axis of the spindle motor. One or more convex ribs extending uniformly from the inner circumference toward the outer circumference along the rotational direction of the spindle motor are integrated into the upper cover around an air filtration filter provided on the upper cover surface forming a A magnetic disk recording device characterized in that it is formed by processing.