JPS62231489A - Carriage structure for dust protection of floppy disk - Google Patents

Abstract

PURPOSE:To improve the passing rate and the job efficiency in a manufacture line by providing a dust protection curtain preventing external dust at a position preceding a magnetic head mounted on a gimbal mechanism in a carriage in driving a floppy disk to decrease read errors or write errors of the floppy disk drive. CONSTITUTION:Magnetic heads 17a, 17b apply read/write to a disk 11. In this case, dust protection curtains 19a, 19b are fitted prior to the magnetic heads 17a, 17b in the drive direction of the disk 11, that is, in a direction of arrow 20 by adhesion. Since the disk 11 is driven normally in a prescribed direction, the dust from the outside of the jacket 12 is invaded from the direction of arrow 20 toward the magnetic heads 17a, 17b. The dust protection curtains 19a, 19b remove the dust in advance before the dust contacts the magnetic heads 17a, 17b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Aspects of the Invention] (Field of Industrial Application) The present invention relates to a carriage structure for protecting floppy disk dust used in a floppy disk drive.

(Prior Art) The shapes of floppy disks used in floppy disk drives (hereinafter referred to as FDD) can be roughly divided into two types. One is for 5.25 inches and one for 8 inches as shown in Figure 3, and the disc 11 is attached to the jacket 12.
It is designed to be stored inside. This jacket 12
has an opening 13 for rotating the disk 11;
An index window 14 is formed for reading/writing onto the disk 11.

On the other hand, the other one is for 3.5 inches as shown in FIG. 4, and is formed so that the disk 11 is housed in the jacket 15 as in the case described above.

A sliding index window 1G is formed in this jacket 15.

These two types of floppy disks are each provided with index windows 14 and 16 for reading/writing from/to the disk 11 using an FDD magnetic head.

When the floppy disk shown in FIG. 3 is in use, if dust enters from outside the FDD and adheres to the magnetic head, or if dust adheres to the disk 11 from the index window 14, read errors or write errors may occur. There was a drawback. This also applies to the floppy disk shown in FIG.

Particularly in recent FDDs, due to the trend towards feminine forms, many floppy disk loading/unloading ports remain in the oven state, and dust countermeasures are becoming necessary.

(Problems to be solved by the invention) The present invention has been made in view of the above points, and the FD
To provide a carriage structure for protecting floppy disk dust, which prevents dust from adhering to the magnetic head and disk of an FDD even when the loading/unloading port of a disk is in an oven state.

[Structure of the Invention] (Means for Solving the Problems) That is, the present invention prevents external dust from entering the floppy disk at a position preceding the magnetic head mounted on the gimbal mechanism in the carriage when the floppy disk rotates. It is characterized by the provision of a curtain to protect against dust.

(Function) In the floppy disk dust protection carriage structure of the present invention, a dust protection curtain is provided on the gimbal mechanism of the carriage on which the magnetic head is mounted. This curtain is formed at a position that precedes the magnetic head when the floppy disk rotates, and prevents external dust from adhering to the magnetic head, thereby preventing read and write errors.

(Example) An example of the present invention will be described below with reference to the drawings. 1st
The figures show the state in which a floppy disk is inserted into the floppy disk dust protection carriage structure of the present invention. (a) is a plan view, (b) is a side view, and Figure 2 shows the same condition. FIG.

In FIGS. 1 and 2, the disk 11 is housed within the jacket lz. This jacket 12 has an opening 13 at the center for rotating the disk 11, and index windows 14, which are means for reading/writing the disk 11, on both upper and lower surfaces.

That is, the disk 11 is exposed in the index window 14.

A magnetic head l? contacts the disk 11 exposed by the index window 14. In the aS 17b, the lower side of the disk 11 surface is the So side, and the upper side is the 81 side. And S.O.
On both the S1 side and the S1 side, the magnetic heads 17a and 17b are supported by a gimbal mechanism (not shown) mounted in the carriage 18.

On the side of the magnetic heads 17a, 17b relative to the direction in which the disk 1■ rotates (on the right side in FIG. 1), there is a
Dust protection curtains 19a and 19b are provided and adhered to the gimbal mechanism. Here, the dust protection curtain 19aS19b is the magnetic head 17a inside the carriage 18.

It is stretched uniformly on the front of L7b. In order to prevent dust from adhering to the disk 11, its length is made equal to or slightly longer than the index window 14.

Next, the operation of this embodiment will be explained with reference to FIGS. 1 and 2.

When the floppy disk constructed as described above is inserted into the FDD and used, the disk 11 always rotates in the direction of the arrow 20.

Now, when reading/writing to disk 11,
From both the So side and the S1 side, the magnetic heads 17a, 17
b contacts the disk 11 within the index window 14.

Then, the magnetic heads 17a and 17b drive the disk 1.
This is used to read/write data to/from 1.

Here, the dust protection curtains 19a, 19b are attached by adhesive or the like at positions preceding the magnetic heads 17a, 17b with respect to the rotational direction of the disk 11, that is, the direction of the arrow 20. Usually, the disk 11 is moved in a certain direction.
Since the magnetic heads 17a and 17b are rotating, dust from outside the jacket 12 also tends to enter from the direction of the arrow 20 toward the magnetic heads 17a and 17b.

The dust protection curtains 19a and 19b protect the magnetic heads 17a and 17. Remove it before touching b,
Dust adhesion to the magnetic heads 17a, 17b and the disk 11 is prevented as much as possible.

As a result, the magnetic head 17a% 17b and the disk 11
etc. are always kept clean, and read and write errors can be reduced.

In this example, a case was shown in which 5.25-inch and 8-inch floppy disks were used, but of course 3.
The same applies when a 5-inch floppy disk is used.

Furthermore, it is also possible to apply the present invention to devices other than FDDs, that is, hard disk devices.

[Effects of the Invention] As described above, according to the present invention, FDD glue errors and write errors are significantly reduced, thereby improving the pass rate on the production line during manufacturing and increasing work efficiency.

[Brief explanation of drawings]

FIG. 1(a) is a plan view of a floppy disk dust protection carriage structure according to an embodiment of the present invention, FIG. 1(b) is a side view, and FIG. 2 is a floppy disk dust protection carriage structure in FIG. A perspective view of the carry-solid structure in use,
Figures 3 and 4 show examples of floppy disks used in the conventional floppy disk carrier structure.
The figure is for 3.5 inches. 11... Disk, 14.1B... Index window, 17a. 17b...Magnetic head, 18...Carriage, 19
a, 19b...Dust protection curtain. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] In the carriage structure of a floppy disk drive equipped with a magnetic head for reading/writing from/to a floppy disk, when the floppy disk rotates, a dust protection curtain is provided at a position preceding the magnetic head. A carriage structure for protecting floppy disks from dust.