JPH0344861A - Floppy disk device - Google Patents

Abstract

PURPOSE:To prevent a floppy disk from being held between a spindle and a collet by making plural rod-shaped parts provided to the spindle smaller than a central window of the floppy disk and opening the parts gradually to adjust their positions. CONSTITUTION:The spindle 11 is provided with plural rod-shaped parts, and the plural rod-shaped parts are spread out by centrifugal force due to the rotation of the spindle, and by equalizing the plural rod-shaped parts to the central window of the floppy disk 21 in size, the adjustment of vertical positions is completed. Subsequently, the floppy disk 21 is pressed by the collet 12 to be brought into close contact with a spindle motor 22, thus completing the adjustment of horizontal positions. By this method, the medium of the floppy disk 21 is prevented from being held between the collet 2 and the spindle 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floppy disk device, and more particularly to a floppy disk device matching method.

[Conventional technology]

As shown in FIG. 5, the conventional floppy disk positioning device aligns the floppy disk 5 by inserting a spindle 51 fixedly installed in the floppy disk device into the central window of the floppy disk 52.
2 was positioned between the spindle 51 and the collet 53.

[Problem to be solved by the invention]

In the conventional floppy disk positioning method described above, the spindle fixedly installed inside the floppy disk drive is the same size as the central window of the floppy disk, so the floppy disk may be misaligned when the floppy disk is inserted into the floppy disk drive. When I was there,
There is a drawback that the floppy disk medium is caught between the collet and the spindle.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for preventing damage to a floppy disk in order to solve the above-mentioned problems and increase the reliability of a floppy disk device.

[Means to solve the problem]

A floppy disk device of the present invention is a floppy disk device in which a floppy disk is aligned by inserting a fixedly installed spindle into a central window of the floppy disk. The present invention is characterized in that the floppy disk is aligned by expanding the plurality of rod-shaped portions using centrifugal force due to rotation and making the plurality of rod-shaped portions have the same size as the central window of the floppy disk.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIGS. 1(a) and 1(b) are a longitudinal sectional view and a side view of a floppy disk device incorporating the floppy disk positioning method of the present invention. This floppy disk device is provided with a spindle 11 and a collet 12 having a plurality of rod-shaped opening/closing parts. FIG. 1 shows a non-driving state before a floppy disk is inserted into the floppy disk device. At this time, a margin is provided between the spindle 11 and the collet 12, which have an appropriate angle, so that the Florabui disk can smoothly enter the space.

FIG. 2 shows the state immediately after the floppy disk 21 has been inserted into the floppy disk device, and the spindle motor 22 has started to be driven.

At this time, since the spindle 11 is not fully opened yet,
The floppy disk 21 is not aligned.

FIG. 3 shows a state in which a plurality of rod-shaped portions of the spindle 11 are fully opened by the centrifugal force of the spindle motor 22. At this time, the rod-shaped portions of the spindle 11 rotate around their roots, and the central portion of the floppy disk 21 is rotated. The window gradually opens toward the window, and when the spindle 11 is fully opened, the vertical positioning of the floppy disk 21 is completed.

FIG. 4 shows a state in which the collet 12 holds the floppy disk 21 and brings it into close contact with the spindle motor 22, completing the left and right positioning and making it possible to read and write the floppy disk 21.

When removing a floppy disk from the floppy disk device, it can be removed using the knob 13, and the state returns to the state shown in FIG.

〔Effect of the invention〕

As explained above, in the present invention, the plurality of rod-shaped parts provided on the spindle are made smaller than the central window of the floppy disk, and the floppy disk is aligned with the spindle by gradually opening the central window and aligning the floppy disk with the collet. This has the effect of eliminating the cause of damage such as being caught between.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1(a) and 1(b) are a vertical sectional view and a side view of a floppy disk device according to an embodiment of the present invention, and FIGS.
Figure 4 is a vertical cross-sectional view of the embodiment shown in Figure 1 with the floppy disk inserted and the spindle motor starting to drive, and a vertical cross-sectional view of the spindle fully open and the vertical alignment of the floppy disk completed. FIG. 5 is a longitudinal sectional view of a conventional floppy disk device.

11...Spindle, 12...Collet, 13...
・Knob, 21...Floppy disk, 22...
Spindle motor, 51... Spindle, 52...
Floppy disk, 53...Colette.

Claims (1)

[Claims] In a floppy disk device in which a floppy disk is aligned by inserting a fixedly installed spindle into a central window of the floppy disk, the spindle is provided with a plurality of rod-shaped portions, and the centrifugal force generated by the rotation of the spindle is used to align the floppy disk. A floppy disk device characterized in that a floppy disk is aligned by widening a plurality of rod-like portions to make the plurality of rod-like portions the same size as the central window of the floppy disk.