JP2546694Y2 - Optical head cleaning member - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning member for cleaning a lens of an optical head unit.

[0002]

2. Description of the Related Art An optical disk or a magneto-optical disk is used for recording sound information, image information, computer data and programs, and the disk is set in a reproducing apparatus or a reproducing / recording apparatus, and is rotated to irradiate the disk. It is designed to receive the reflected light of the reflected light. Since the surface of the lens of the optical head is exposed in the internal space of the disk device, dust easily adheres to the surface and is liable to adversely affect information recording or reproduction.

[0003] For this reason, in order to facilitate the cleaning operation, a cleaning member is used in which a cleaning member such as a brush is protruded from the surface of the disk body having the same shape as the disk disk by flocking or the like.

[0004]

[Problem to be solved by the invention]
Is provided with the cleaning element for cleaning the lens pick-up heads on the same surface as the surface provided with the lead-in track, the
The cleaning body is generally a hair-bundle type, and is mainly used for the sweeping effect.
Cleans against dry soil such as dust and dirt.
Oily dirt and tobacco, etc.
Contact force is too weak and there is almost no cleaning effect
won.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and performs cleaning of an optical head on a board.
A cleaning member for an optical head provided with a cleaning body;
Clean the body with a hair bundle-like cleaning body and a molded
Consists of a sweeping body and both cleaning bodies are arranged at different positions on the same panel
It was done.

[0006]

The cleaning member is set in the optical disk reproducing apparatus.
The hair attached to the optical head
"Sweep" quality dust, etc., and exist at another location
Cleaning body made of molded material of flexible material adheres to optical head
With sufficient contact resistance to oily stains
Touching and performing the so-called "wiping"
A single board can cope with various types of attached dirt
It becomes In other words, the cleaning body in the form of a hair bundle has a small contact area.
In addition, a large amount of individual hair hits the optical head
Molding of flexible material with excellent sweeping function
Since the cleaning body made of the product is molded,
The contact area with the optical head is smaller than the hair of each bundle
Extremely large, suitable for removing fine dust
Although the contact resistance with the optical head is not
So-called wiping because of its flexible material
The effect is excellent. Therefore, the board of the present invention
The cleaning body for wiping and the cleaning body for wiping are in different positions on the same panel.
Present each other to compensate for each other's drawbacks
Good cleaning from kana dust to sticky dirt
Is possible.

[0007]

FIG . 1 is a perspective view showing an embodiment of the present invention.
On the same board side, a hair bundle-shaped cleaning body 3 and silicone rubber
Cleaning body 20 made of a flexible material such as
It is erected at another position. FIG. 2 shows the hair bundle cleaning body 3 and the optical
FIG. 3 is a front view showing a contact state of the head 2, and FIG.
FIG. 4 is a front view showing a contact state between the optical head 2 and the optical head 2.
As is clear from these drawings, the hair bundle-shaped cleaning body 3 has fine hairs.
Fine hair due to the large amount of bristles
And the like, while the individual cleaning body 20 is
Because it is made of flexible material such as rubber,
The contact area with the head 2 is large.
It is effective for stubborn dirt. Present invention
Are the cleaning body (hair bundle) and the cleaning body (soft
Products of different materials) at different positions on the same board surface.
With this, various kinds of dirt can be cleaned very well.
And Of course, increasing the cleaning effect, rather it is preferably to clean at cleaning body after wetting the lens surface, distilled water as a cleaning solution, isopropyl alcohol (IP
A mixed solution of A) and distilled water, a mixed solution of a surfactant, distilled water and an aliphatic alcohol, or a mixture of these with a fungicide is suitable.
The most preferred liquid components are 4 to 8% by weight of a surfactant, 20 to 40% of distilled water, and 52 to 76% of a resin group alcohol.

As described above, in order to further enhance the cleaning effect.
Is preferably a so-called wet type, so in this embodiment,
The cleaning body 20 made of a molded article is provided with a through hole 9 in the board 1, a large-diameter liquid reservoir 10 penetrating therethrough, and a small-diameter coating portion 11 protruding from the through hole 9 toward the lens. For example, it is integrally formed of a flexible material such as silicone rubber having a Shore of about 40 to 45 degrees . This molded article made cleaning body 20 is press-fitted into the through hole 9 by utilizing this elastic, easily removable during or replaced when not in use. The diameter of the opening of the tip of the cleaning body 20 may be set so that the surface tension of the cleaning liquid is larger than the centrifugal force generated when the disk body 1 rotates at a high speed.
If it is 500 μm, the lens surface can be sufficiently wet without scattering more than necessary. The supply of the liquid is, Banthai 1 Loeve
From a side such as a dropper E. Of course, it may be supplied directly from the recording surface side.

[0009] As described above , the liquid supply hand is attached to the molded article cleaning body 20.
The steps are also formed integrally, and if the lens surface is moistened, the liquid will spread along the entire spherical lens surface, softening stubborn dirt, and effectively using the cleaning liquid.
It can be wiped off by the bristle-shaped cleaning body 3 , and the cleaning effect can be further enhanced.

[0010]

[Other Embodiments] Although the cleaning body 20 made of a molded article is in the form of a tube at the tip, as shown in FIG. 4 , the tip 12 is tapered, and a slot 13 is inserted from the tip to the middle, and a constant pressure and constant deformation force are applied. in it is formed of an elastic body such as silicone rubber so-called duckbill shape which opens from the slitting 13, FIG.
As shown in FIG. 5 , the liquid leaks due to the displacement of the tip 12 when it comes into contact with the lens 7, and the lens surface can be moistened in a painted state. This may have a conical shape, and in order to enhance the coating performance, it is preferable to cut the tip of the slit in the rotation direction side to make it smaller, and apply the liquid on the exposed facing surface 14 on the other side. In order to improve the familiarity with the lens surface, it is preferable to divide the exposed opposing surface into slits in a goodwill shape. Reference numeral 15 denotes an integrally formed retaining projection.

[0011]

[Effects of the Invention] As described above, the present invention provides the optical
Cleaning section of the optical head provided with a cleaning body for cleaning the head 2
In the material, the cleaning body is a hair bundle-shaped cleaning body 3 and a soft material.
And a cleaning body 20 made of quality molded product.
Since 3, 20 are located at different positions on the same board,
Easy cleaning by sweeping work such as dust and dust
Cleaning with dirt, oily dirt, cigarettes, etc.
Easy to clean dirt on one board
Cleaning can be performed by the cleaning operation.
Faster and better adhesion to optical lenses than screen cleaners
It is possible to clean stains that have occurred.

First, the disk 1 is set on a disk drive, and when the disk drive is started, the first brush 3 cleans the surfaces of the lenses 6 and 7. At this time, the first brush body 3 having a large protrusion amount with respect to the head lens 7 abuts more than necessary. However, since the first brush body 3 is provided in the area of the lead-in track A2 on the surface A, the first brush body 3 rotates. Since the distance from the center is short, the rotation torque is not likely to be overloaded, and the rotation is performed smoothly. In addition, the first brush body 3 is excessively deformed, the laser light quantity changes, and an error occurs in the pickup of the head lens 7. Does not stop immediately because this area is the lead-in track A2. For this purpose, it is preferable that the first brush body 3 is implanted near the play track A3 in the lead-in track A2, avoiding the first part of the lead-in track A2 so that normal reading is performed. In the lead-in track A2, a work credit, a test signal (color bar), a black burst, and a lead-in logo are recorded in this order from the center side. Only the data of the burst is partially damaged. Temporarily
When the bristle bundle of the brush body 3 is large, the area of the lead-in track A2 is directed radially outward, and for example, the above-mentioned table of contents (TOC) signal is repeatedly recorded for a predetermined amount or more, and the bristle bundle is recorded. Even when the tip is loose or deformed, it can be dealt with by extending it so that a normal TOC signal can be read. In this way, the first brush body 3 serving as the first cleaning body performs a sufficient cleaning to some extent.

[0013] Next, the user inputs a time number (an LD which can search for a chapter number can also be used).
By directly specifying the frame or the surface B immediately before reaching the lead-out track A4 on the surface A, the optical head unit 5 moves radially outward, and after passing the lead-out track A4, the unit 5 Is driven in reverse so as to look down from above, and passes through the play track B3 on the B side to the lead-in track B2 on the B side. At this time, the cleaning is performed such that the second brush body 4 with a small protrusion amount implanted on the play track C looks up at the surface of the head lens 7. Since each second brush body 4 is displaced in the radial direction, the second brush body 4 is divided and cleaned without cleaning the entire surface of the lens 7 at once, so that no overload is applied.

Moreover, the second brush body 4 is cleaned upward as if cleaning the ceiling, and since the lens surface is facing downward, the dust once wiped down by its own weight, or the rotation of the disk body 1 The cleaning effect is high without being repelled to the outer periphery by the flow and re-adhering to the lens 7.

[0015]

Other Embodiments In order to enhance the cleaning effect, it is preferable to moisten the lens surface and then clean it with a cleaning body. For this purpose, it is possible to mix a cleaning liquid supply body as shown in FIG. 4 instead of any of the first brush bodies 3 or to replace all of them. As the cleaning liquid, distilled water, a mixed liquid of isopropyl alcohol (IPA) and distilled water, a mixed liquid of a surfactant, distilled water and an aliphatic alcohol, or a mixture of these with a fungicide is suitable. Those with high evaporability are good. The most preferred liquid components are surfactant 4-8% by weight, distilled water 20-40%,
Resin group alcohol is 52 to 76%.

The liquid supply 8 is provided with a through hole 9 in the board 1.
The large-diameter liquid reservoir 10 penetrated here and the through-hole 9
And a small-diameter coating portion 11 protruding from the lens to the lens side is integrally formed of a flexible material such as silicone rubber having a Shore of about 40 ° to 45 °, and is press-fitted into the through hole 9 by using this elasticity. Because it is fixed, it can be easily attached and detached when not in use or when replacing it. The tip opening diameter of the application section 11 may be set so that the surface tension of the cleaning liquid is larger than the centrifugal force generated when the disk 1 rotates at a high speed. In the case of the optimum cleaning liquid, it is about 60 to 500 μm. In this case, the lens surface can be sufficiently moistened without scattering more than necessary.
The liquid is supplied from a surface B of the board 1 with a spoid E or the like. Of course, it may be supplied directly from the A side.

As described above, if the lens surface is moistened by the liquid supply member 8 as the first cleaning member on the side of the surface A, the lens surface is facing upward at this point, so that the liquid is applied to the entire spherical lens surface by its own weight. It can spread along, can soften stubborn dirt, and can effectively use the cleaning liquid. Then, it can be scraped or wiped off by the second brush body 4 as the second cleaning body on the B side. The effect can be enhanced.

In this case, if the second cleaning body 4 is made of a soft absorbent such as woven fabric, nonwoven fabric, sponge or sponge body and has fine irregularities on the surface instead of the brush body, the effect can be further enhanced. Can be.

Although the liquid supply body 8 is formed in a tube shape at the tip, as shown in FIG. 5, the tip 12 is tapered, and a slot 13 is inserted from the tip to the middle, and the slit 13 is formed at a constant pressure or a constant deformation force. If it is formed of an elastic body such as silicone rubber in a so-called duck-bill shape that opens, the liquid leaks out due to the displacement of the tip 12 when it comes into contact with the lens 7 as shown in FIG. Can be moistened. This may have a conical shape, and in order to enhance the coating performance, it is preferable to cut out the slit-side tip 13 in the rotating direction and apply the liquid on the other exposed facing surface 14 on the other side. In order to improve the familiarity with the lens surface, it is preferable to divide the exposed opposing surface into slits in a goodwill shape. Reference numeral 15 denotes an integrally formed retaining projection.

The arrangement position of the liquid supply body 8 is not limited to the position of the first cleaning body 3 but near the lead-out track A4 of the play track A3 on the A-side or the lead-out track A.
Assuming that the number of rotations is 4, since the rotation speed of the disk in this region is low, the impact force can be reduced, and the head lens 7 requiring high reading accuracy can be cleaned immediately after the head unit is turned over after moistening. Can be cleaned.

Of course, it is preferable that the liquid supply body 8 is also arranged at a point symmetrical position with respect to the center of the board 1 in order to prevent imbalance during high-speed rotation of the board 1. Also, in any of the embodiments, a disk device capable of continuous A and B double-sided reproduction of a disk of a constant angular velocity type (CAV mode type) or a disk for electronic files can be similarly performed.

When the disc 1 is used in a single-sided reproduction type disc apparatus, it is sufficient to use one disc at a time as in normal reproduction. If a dry cleaning body such as a brush or cloth is provided on the surface side, only the B side is used on a daily basis, and in the case of stubborn dirt, use the A side and then use the B side. By using the side continuously, a clean state can always be obtained without imposing too much load on the optical head unit.

Further, a static eliminator made of a fiber bundle or woven cloth subjected to a conductive treatment is provided on the side A, and a cleaning body made of a brush body or a woven body is provided on the side B, so that the optical head unit can be neutralized if used continuously. After the cleaning, dust and the like are cleaned, so that dust is easily removed from the lens surface, and re-attachment is reduced.

It should be noted that the second brush body 4 of the above-described embodiment is made of ultra-fine nylon fibers in a radial direction or a track direction.
It may be planted linearly to a length of about 20 mm. In the present invention, it is important to provide a cleaning body on the side B,
It does not require the cleaning body on the A side.

[0025]

[Effect of the invention] As described above, according to the invention, A
The lead-in track is provided on the surface A and the cleaning body is provided on the surface B of the cleaning member of the optical head having the lens cleaning body on the surface of the double-sided disk composed of the surface B and the surface B. A product with a high cleaning effect is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a panel body according to an embodiment of the present invention.

FIG. 2 is a plan view of the board of the embodiment.

FIG. 3 is a cleaning state diagram using the embodiment.

FIG. 4 is a partial cross-sectional perspective view of another embodiment according to the present invention.

FIG. 5 is a partial perspective view of still another embodiment according to the present invention.

FIG. 6 is a liquid application state diagram of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Board body 3 1st cleaning body 4 2nd cleaning body

Claims (3)

(57) [Scope of request for utility model registration] A cleaning device for cleaning an optical head on a disk body.
In a cleaning member for an optical head provided with a sweep body, the cleaning body
Is made of a brush-like cleaning body 3 and a molded product made of a soft material.
And two cleaning bodies 3, 20 on the same board.
Cleaning part for optical head, which is arranged at another position
Wood. 2. A cleaning body 20 comprising the above-mentioned molded product is
2. The optical device according to claim 1, wherein the optical device has
Cleaning member for pad. 3. A cleaning body 20 made of the above-mentioned molded article is ducked.
2. The optical device according to claim 1, wherein the optical device has a building shape.
Cleaning member for head.