JPH0433529Y2 - - Google Patents

Description

[Detailed description of the invention] [Summary] By fixing a cover to the arm that protrudes from the carrier and lifts and lowers the magnetic head, dust is prevented from adhering to the magnetic head that is in contact with the window of the floppy disk. It is.

[Industrial application field]

A floppy disk device, especially when used as OA equipment, may be installed in a dusty location depending on the room in which it is installed.

In such a case, dust may get between the sliding magnetic head and the magnetic sheet of the floppy, damaging the floppy or the magnetic head.

Therefore, it is desired that the device be able to operate stably without failure even when installed in such a dusty location.

[Conventional technology]

Conventionally, the structure was as shown in the conventional plan view of FIG.

As shown in FIG. 3, the carrier 1 is rotated around the shaft 10, raises or lowers the collet 2, and raises or lowers the collet 2 through the through hole 6 provided in the center of the floppy 6.
The floppy disk 6 is engaged with the hub 12 provided oppositely through the floppy disk 6, and is configured to clamp or unclamp the floppy disk 6.

Further, an arm 5 protruding from the carrier 1 is held by a head arm 4, and is configured so that the magnetic head 3 positioned in the window portion 6A of the floppy disk 6 can be raised or lowered by rotation of the carrier 1. .

Therefore, when setting the floppy disk 6, the collet 2 is raised and the magnetic head 3 is set.
was also raised, collect floppy disk 6 and hub 1.
This is done by inserting the collet between the collet 2 and the collet 2 and lowering the collet 2. By this descent, the magnetic head 3 is also lowered, and the magnetic head 3 is configured to come into contact with and slide against the rotationally driven magnetic sheet 6B exposed in the window portion 6A.

Further, when reading or writing by the magnetic head 3, the bar 11 raises and lowers the magnetic head 3 so that it comes into contact with or is isolated from the magnetic sheet 6B.

[Problem that the invention attempts to solve]

In such a configuration, cooling air is generally blown from the insertion direction of the floppy disk 6 as indicated by arrow A.

Therefore, there is a problem in that dust tends to accumulate in the sliding area between the magnetic head 3 and the magnetic sheet 6B, and the dust enters the sliding area, causing damage to the magnetic head 3 or the magnetic sheet 6B. .

[Means for solving problems]

FIG. 1 is a plan view of the principle of the present invention.

As shown in FIG. 1, a cover 7 covering a magnetic head 3 is fixed to an arm 5.

With this configuration, the above-mentioned problems are solved.

[Effect]

That is, by fixing a cover to an arm that raises and lowers the magnetic head, the magnetic head is covered and dust is prevented from entering the sliding portion between the magnetic head and the magnetic sheet.

Therefore, it is possible to prevent the magnetic head or magnetic sheet from being damaged by dust as in the prior art.

〔Example〕

The present invention will be explained in detail below with reference to FIG.
FIG. 2 is an explanatory diagram of an embodiment according to the present invention, in which a is a plan view and b is a perspective view. The same reference numerals indicate the same objects throughout the figures.

As shown in a, a cover 7 covering a magnetic head 3 is fixed to an arm 5 projecting from a carrier 1 which rotates around a shaft 10 with screws 13, and the rest is as described above. It has the same configuration as .

The cover 7 also includes a box 7A that covers the magnetic head 3 and a mounting portion 7 that is fixed to the arm 5, as shown in b.
C, a notch 7D into which the head arm 4 and bar 11 are inserted, and a packing 7B fixed to the opening that abuts the jacket 6E of the floppy disk 6.

This packing 7B is made of an elastic material that is as soft as possible, so that the opening of the box 7A is brought into close contact with the jacket 6E, and no gaps are created.
The box 7A must be made of synthetic resin or the like, with consideration given to reducing its weight.

With this configuration, even if the air is blown as described above, the sliding portion between the magnetic head 3 and the magnetic sheet 6B exposed in the window portion 6A is covered by the cover 7.
Since it is formed so as to be covered with, it is possible to prevent dust from entering.

Furthermore, since the cover 7 is attached to the arm 5, there is no need for any metal fittings for attaching the cover 7, which has the advantage of a simplified structure.

[Effect of idea]

As explained above, according to the present invention, it is possible to provide a dust-proof cover with a simple structure, and to prevent the occurrence of troubles caused by dust as in the conventional case.

Therefore, damage to the magnetic head and magnetic sheet, which conventionally occurs, can be completely eliminated, and the practical effect is great.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the principle of the present invention, FIG. 2 is an explanatory diagram of an embodiment of the present invention, where a is a plan view, b is a perspective view, and FIG. 3 is a conventional plan view. In the figure, 1 is a carrier, 2 is a collector, 3 is a magnetic head, 4 is a head arm, 5 is an arm, 6 is a floppy disk, 6A is a window portion, and 7 is a cover.

Claims (1)

[Claims for Utility Model Registration] A collet 2 for clamping a floppy 6; a magnetic head 3 held by a head arm 4 so as to be positioned in a window portion 6A of the floppy 6; A floppy disk device comprising: a carrier 1 for raising and lowering a collet 2 to clamp and unclamp it; and an arm 5 protruding from the carrier 1 for raising and lowering the magnetic head 3 in synchronization with the raising and lowering of the collet 2. A floppy disk device characterized in that a cover 7 covering the magnetic head 3 is fixed to the arm 5.