JPH0371412A - Cleaning disk - Google Patents

Abstract

PURPOSE:To enable the disk to be used also in a hard disk device and to easily perform the application of a cleaner on a cleaning sheet by providing the cleaning sheet stuck at a state where initial tension is applied, and a gap for guiding the cleaner provided at the inside of the sheet almost in a radial shape. CONSTITUTION:A pair of upper and lower cleaning sheets 7 are stuck on two planes of a disk main body 2 in disk shape between the center part 3 and an outer peripheral part 4. Both cleaning sheets 7 are stuck, for example, at the state where the initial tension is applied in directions of arrow heads (c), (d) that is the radius direction of the disk main body 2. And plural gaps 8 for guiding the cleaner formed almost in the radial shape are provided between the upper and lower planes 5a of plural arms 5 formed almost in the radial shape against the inner planes 7a of both cleaning sheets 7. Thereby, it is possible to easily apply the cleaner extending over the entire area in the radius direction of the cleaning sheet 7, therefore, the disk can be used in a floppy disk device and the hard disk device, and various kinds of disk recording and reproducing devices widely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning disk for cleaning a magnetic head of a disk recording/reproducing device.

[Summary of the Invention] The present invention comprises forming a cleaning disk #f by pasting a cleaning sheet on at least one side of the disk body, and providing an approximately radial cavity on the inner surface of the cleaning sheet for guiding the cleaning liquid. , the cleaning liquid can be easily applied to the cleaning sheet.

[Conventional technology]

This type of cleaning disk is mounted on a turntable of a disk recording and reproducing apparatus in place of a disk-shaped recording medium, and rotates to clean a magnetic head that records and/or reproduces information on the disk-shaped recording medium.

Conventionally, as a cleaning disk for a floppy disk device for recording and reproducing data on a floppy disk, there is a cleaning disk in which a cleaning liquid is applied to a nonwoven fabric disk.

1. As a cleaning disk for a hard disk device that records and plays back hard disks, the present invention provides a cleaning sheet that is pasted on at least one side of the disk body, and a cleaning sheet that is placed inside the cleaning sheet in a recess provided in the disk body. We have previously filed an application for a device that is filled with liquid (Utility Application No. 49615/1983).

[Problem to be solved by the invention]

However, with conventional cleaning disks for 70-tube disk devices, when cleaning liquid is dripped onto a non-woven disk, the cleaning liquid oozes in one spot and spreads a little, and it spreads over the entire area in the radial direction of the non-woven disk. In order to apply the cleaning liquid uniformly over the area, it is necessary to drop the cleaning liquid at multiple locations on the nonwoven fabric disk, which is problematic.

However, conventional cleaning disks for floppy disk drives cannot be used for 11-speed disk drives. In other words, the /1-head disk device moves a floating magnetic head (flying head) from the hard disk against a weak spring force by rotating the hard disk at high speed.
Since it uses a micron floating method, you can use a cleaning disk for Funbee Disk RR.
When trying to clean a floating magnetic head, the wavy flapping caused by the rotation of the nonwoven disk causes
There is a problem in that vibrations occur in the floating magnetic head, making it impossible to clean the floating magnetic head.

In addition, the cleaning disk for hard disk drives, which is an example of the prior application, requires a large amount of cleaning liquid to be filled into the recess of the disk body, which results in a large consumption of cleaning liquid, which is uneconomical. There was a point.

The present invention can also be used for hard disk devices, and furthermore,
It is an object of the present invention to provide a cleaning disk that can easily apply a cleaning liquid to a cleaning sheet.

[Means for Solving the Problems] In order to achieve the above object, the cleaning disk of the present invention comprises a disk body, a cleaning sheet pasted with initial tension applied to at least one side of the disk body, and The cleaning sheet is provided with voids for guiding cleaning liquid provided approximately radially inside the cleaning sheet.

[Function] In the cleaning disk configured as described above, the cleaning sheet is attached to the disk body with initial tension applied, so even if the cleaning sheet is rotated at high speed, no wave-like flapping occurs in the cleaning sheet. . Simply drop the cleaning liquid in one spot on the center side of the cleaning sheet and let the cleaning liquid flow into the gap for guiding the cleaning liquid.Using the centrifugal force caused by the rotation of the cleaning disk, the cleaning liquid can be guided into the gap. The cleaning liquid can be guided radially outward along the cleaning sheet to permeate the entire cleaning sheet in the radial direction.

〔Example〕

Hereinafter, one embodiment of a cleaning disk to which the present invention is applied will be described with reference to the drawings.

First, the cleaning disk 1 will be explained with reference to FIGS. 1 and 2.

The annular and rigid disk body 2 is made of synthetic resin such as polyetherimide resin or light metal such as aluminum or magnesium. The disk main body 2 is composed of a central portion 3, a ring-shaped outer peripheral portion 4 concentric with the central portion 3, and a plurality of arms 5 connecting these in a substantially radial manner. A turntable insertion hole 6 is provided at the center of the center portion 6, and the plurality of arms 5 rotate in a direction opposite to the rotational direction (arrow a direction) of the disc body 2 as it extends from the center portion 3 to the outer peripheral portion 4. It is curved in an arc in the direction of

A pair of upper and lower cleaning sheets 7 are pasted in a disk shape between the center portion 6 and the outer peripheral portion 4 on both sides of the disk body 2 by adhesive or the like.

At this time, both cleaning sheets 7 are stretched 9 with initial tension being applied, for example, in the directions of arrows e and d, which are the radial directions of the disk body 2. Both cleaning sheets are made up of flexible sheets for applying and impregnating cleaning liquid such as 7f1 non-woven fabric.

A plurality of substantially radial gaps 8 for guiding the cleaning liquid are provided between the inner surfaces 7a of both cleaning sheets 7 and the upper and lower surfaces 5a of the plurality of substantially radial arms 5. Note that the vertical height of this gap 8 is approximately 60 to 1
00 μm.

Next, cleaning of the floating magnetic head of an eight-day disk drive will be explained with reference to FIGS. 6 and 4.

Hard disk of hard disk device (not shown)? :
The cleaning disk 1 is attached to the turntable 11 which is attached and driven to rotate through the turntable insertion hole 6 of the disk body 2, and fixed with a presser plate 12 and a plurality of screws 15. Then, the floating magnetic head 15 is brought into light contact with the pair of upper and lower cleaning sheets 7 or one of the cleaning sheets 7 by a weak spring force of a support member 14 such as a plate spring.

Then, with the cleaning sheet 7 coated and impregnated with the cleaning liquid 16, the floating magnetic head 14 is moved onto the cleaning disk 1 while rotating the cleaning disk 1 at high speed in the direction of arrow a using the turntable 11.
The floating magnetic head 1 is moved by the cleaning sheet 7 in the direction of arrow e, which is approximately the radial direction of the floating magnetic head 1.
Clean 4.

At this time, since the disk body 2 of the cleaning disk 1 is rigid and the cleaning sheet 7 is attached to the disk body 2 in a disk shape with initial tension applied, even if the cleaning disk 1 is rotated at high speed, The cleaning sheet 7 does not cause any wave-like flapping, and the cleaning sheet 7 can be rotated extremely safely.

Therefore, the floating magnetic head 14 can be cleaned smoothly and reliably without causing vibration in the floating magnetic head 14.

In addition, the air gap 8 provided between the inner surface 7a of the cleaning sheet 7 and the upper and lower surfaces 5a of the plurality of arms 5 alleviates the run out of the floating magnetic head 14 with respect to the cleaning sheet 7. The magnetic head 12 can come into soft and safe contact with the cleaning sheet 7.

Therefore, the flying magnetic head 12 can be safely cleaned without causing damage 9 or abnormal wear.

When applying and impregnating the cleaning liquid 16 on the cleaning sheet 7, the cleaning liquid 16 is applied from the surface 7b11 of the cleaning sheet 7 to one location on the center side of the cleaning sheet 7 (near position P) to the cleaning tube 17. It is sufficient to simply let the cleaning liquid 16 flow out from the gap 8 and drip it, and then flow the cleaning liquid 16 into the gap 8.

That is, when the cleaning disk 1 is rotated at high speed while the cleaning liquid 16 is dropped onto the position P of the cleaning sheet 7, the centrifugal force caused by the rotation causes the cleaning liquid 16 to move outward in the radial direction along the gap 8. While being guided in the direction of the arrow f, the cleaning sheet 7 is uniformly penetrated over the entire radial area of the cleaning sheet 7.
A channel 16a for cleaning liquid 16 is formed.

Therefore, the cleaning liquid 16 on the cleaning sheet 7
Easy to apply and impregnate. Also, cleaning liquid 1
6 onto the cleaning sheet 7, the cleaning liquid 16 can be uniformly permeated over the entire radial area of the cleaning sheet 7, so the amount of consumption of the cleaning liquid 16 is small and it is economical. be.

Since the channel 16a for the cleaning liquid 16 can be formed over the entire radial area of the cleaning sheet 7, the floating magnetic head 14, which is moved in the direction of the arrow e, can be effectively cleaned with the cleaning liquid 16. Note that even if the cleaning disk 1 is rotated at high speed after dropping the cleaning liquid 16 onto the cleaning sheet 7 at position PK, the cleaning disk 1
The cleaning liquid 16 may be dripped onto the center side of the cleaning sheet 7 (near the circular position Pl shown in FIG. 7) while rotating at high speed.

This cleaning disk 1 can also clean the magnetic head of a 70-inch disk device in the same manner as described above.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various effective changes can be made based on the technical idea of the present invention.

For example, as shown by the dashed line in FIG. 2, the cleaning disk 1 can be stored in a disk cassette 18 for use.

[Effects of the Invention] Since the present invention has nine components as described above, it produces the following effects.

This is a cleaning disk in which a cleaning sheet is stretched in a disk shape on the disk body under initial tension, and is constructed so that no wave-like flapping occurs in the cleaning sheet even when the cleaning sheet is rotated at high speed. When the floating magnetic head is used in a hard disk drive to perform IJ=ing, the floating magnetic head can be cleaned smoothly and reliably without causing vibration to the floating magnetic head.

Simply drop the cleaning liquid at one location on the center side of the v-2-y sheet and let the cleaning liquid flow into the cleaning liquid guiding gap.1. The cleaning liquid is guided outward in the radial direction along the gaps so that the cleaning liquid can permeate the entire cleaning sheet in the radial direction. To easily apply cleaning liquid to a sheet. Further, by simply dropping a small amount of the cleaning liquid onto the cleaning sheet, the cleaning liquid can be permeated throughout the entire radial direction of the cleaning sheet, so that the amount of cleaning liquid consumed is small, which is economical.

Since the cleaning liquid can be easily applied over the entire radial area of the cleaning sheet, it is possible to effectively clean the magnetic head of a disk recording/reproducing device.
It can be used in a wide range of applications such as Tubi disc devices, Yahard disc devices, and other various disc recording and reproducing devices.

7...Cleaning sheet 8...
...It's a void.

Claims (1)

[Claims] This cleaning disk comprises a disk body, a cleaning sheet pasted with initial tension applied to at least one side of the disk body, and gaps for guiding cleaning liquid provided substantially radially inside the cleaning sheet.