JPH07192290A - Lens cleaning device - Google Patents

Abstract

PURPOSE:To make it possible to perform satisfactory cleaning not to remain any cleaning liquid by performing the cleaning by attaching the cleaning liquid to either of first and second cleaning brushes. CONSTITUTION:The cleaning liquid is attached to either one of cleaning brushes 37 and 38 fitted to a cleaning head 25 provided at the head of the operating rod of a cleaning cartridge. Next, the cleaning is performed by selectively bringing the brushes 37 and 38 into sliding-contact with an objective lens 17 of an optical disk device while turning the head 25. Thus, since the cleaning liquid attached to the lens 17 is swept off by the other brush with no cleaning liquid, no cleaning liquid is remained on the lens 17 after cleaning, and satisfactory cleaning becomes possible. In this case, it is preferable to compose one brush to attach the cleaning liquid of a hygroscopic fiber material and to compose the other brush from a hard fiber material among the brushes 37 and 38.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens cleaning device for cleaning an objective lens of an optical disk device, for example.

[0002]

2. Description of the Related Art As a lens cleaning device of this type, there is one disclosed in Japanese Patent Application No. 2-129630 or Japanese Patent Application No. 5-235169. That is, this lens cleaning device is provided with a cleaning cartridge, and an operating shaft is rotatably provided on this cleaning cartridge. An operation lever is provided at the base end portion of the operation shaft, and a cleaning head having a brush is provided at the tip end portion.

In order to clean the objective lens of the optical disk device, however, a cleaning cartridge is inserted inside the optical disk device, the cleaning brush is made to face the objective lens, and then the operation lever is used. − Is rotated to rotate the cleaning head via the operation shaft.
By rotating the cleaning head, the surface of the objective lens is rubbed by a brush to be cleaned.

[0004]

However, in the prior art, since the surface of the objective lens is simply rubbed and cleaned by a brush, dust such as dust on the surface of the objective lens disappears, but inside the drive device. There is a problem that dust is scattered to other places, dust adheres to other optical system parts, and the cleaning effect is not sufficient.

In order to solve the above problems, it has been considered to use a cleaning liquid together. However, if the wiping after cleaning is not sufficient, the cleaning liquid dries on the surface of the objective lens and remains as a stain, After all, the cleaning effect was not sufficient.

[0006] Therefore, an object of the present invention is to provide a lens cleaning device which can be cleaned satisfactorily without leaving a stain even if a cleaning liquid is used together.

[0007]

In order to solve the above-mentioned problems, a cleaning cartridge inserted into an optical disk device having an objective lens and an operating shaft rotatably provided on the cleaning cartridge. , A cleaning head provided at the tip of the operating shaft,
First and second cleanings provided on the cleaning head, and cleaning liquid is adhered to one of the cleaning heads and selectively slidably contacted with the objective lens by the rotation of the cleaning head for cleaning. And a training brush.

Further, a cleaning cartridge inserted into an optical disk device equipped with an objective lens, an operating shaft rotatably mounted on the cleaning cartridge, and a distal end portion of the operating shaft are provided. A cleaning head, and a cleaning liquid provided on one of the cleaning heads, and a cleaning liquid is adhered to one of the cleaning heads, and the cleaning liquid is selectively slidably contacted with the objective lens by the rotation of the cleaning heads. A first cleaning brush and a second cleaning brush, wherein one of the first cleaning brush and the second cleaning brush to which the cleaning liquid is attached is made of a hygroscopic fiber material. The other brush is made of a hard fiber material.

Further, a cleaning cartridge inserted into an optical disk device equipped with an objective lens, an operating shaft rotatably mounted on the cleaning cartridge, and a distal end portion of the operating shaft are provided. A cleaning head, and a cleaning liquid provided on one of the cleaning heads, and a cleaning liquid is adhered to one of the cleaning heads, and the cleaning liquid is selectively slidably contacted with the objective lens by the rotation of the cleaning heads. A first cleaning brush and a second cleaning brush, wherein one of the first and second cleaning brushes to which the cleaning liquid is attached has a short dimension, and the other brush is It has a long dimension.

Further, a cleaning cartridge inserted into an optical disk device having an objective lens, an operating shaft rotatably mounted on the cleaning cartridge, and an angle provided at the tip of the operating shaft. Different from the first
And a cleaning head having a second mounting surface, and the cleaning head mounted on the first and second mounting surfaces of the cleaning head, the cleaning liquid being attached to one of the cleaning heads. The first and second cleaning brushes are selectively slidably brought into contact with the objective lens for cleaning.

[0011]

The cleaning liquid is adhered to one of the first and second cleaning brushes provided on the cleaning head, and the first and second cleaning brushes are cleaned. The cleaning liquid adhering to the objective lens is wiped off with the other cleaning liquid-free cleaning brush by cleaning the cleaning liquid by selectively sliding it on the objective lens by rotating the cleaning head. This allows the objective lens to be cleaned after cleaning.
Good cleaning is possible without leaving the rinsing liquid.

[0012]

The present invention will be described below with reference to an embodiment shown in the drawings. FIG. 2 shows a state in which a cleaning cartridge 12 is inserted in the main body 11 of the optical disk device in place of an optical disk cartridge (not shown).

An optical disk cartridge insertion port 14 is formed in the front panel 13 of the optical disk device body 11. In addition, a cartridge holder 15 for receiving an optical disk cartridge inserted from the cartridge insertion port 14 inside the optical disk device main body 11;
A loading mechanism (not shown) that loads the optical disk cartridge together with the trench holder 15 to the optical disk mounting position in the optical disk device main body 11, a shutter opening / closing mechanism that opens / closes the shutter of the head access window of the optical disk cartridge during the loading operation of the optical disk cartridge, An optical disk drive mechanism including a spindle motor as a disk drive means for holding and rotating the optical disk at the mounting position, an optical head 16 disposed on the lower surface side of the optical disk, and the optical head 16 in the radial direction (track) of the optical disk. A drive mechanism and the like for the optical head 16 that is moved along the control direction) is provided.

Further, the optical head 16 is a spindle motor.
Optical beam (laser beam
Objective lens 17 for condensing light) and this objective lens 17
And a holding unit 18 that holds the. A lens actuator that holds the objective lens 17 and supports the objective lens 17 so as to be movable in the optical axis direction (focus control direction) thereof is incorporated.

3 and 4 show the cleaning cartridge 12. This cleaning cartridge 12
The cartridge main body 21 is provided with an insertion portion 22 that is inserted into the optical disc device main body 11 in place of an optical disc, and a hand side operation portion 23 that is arranged on the proximal end side of the insertion portion 22.

Further, a pair of protruding portions (regulating means) 24 protruding in the vertical direction are provided at both left and right ends of the hand side operating portion 23 of the cartridge body 21. Then, when the insertion portion 22 of the cleaning cartridge 12 is inserted into the optical disc device body 11, the protruding portion 24 of the cartridge body 21 is provided at an intermediate position of the insertion path where the optical disc is inserted into the optical disc device body 11 to the optical disc mounting position.
Is brought into contact with the peripheral portion of the cartridge insertion opening 14 of the optical disk device main body 11, and the insertion operation of the insertion portion 22 of the cartridge main body 21 is restricted.

A cleaning head 25 for cleaning the objective lens 17 of the optical head 16 is provided at a substantially central portion of the tip of the cartridge body 21. The cleaning head 25 is arranged at an insertion regulation position where the projection portion 24 regulates the insertion of the insertion portion 22 and at a position facing the objective lens 17 of the optical head 16 in the optical disc apparatus main body 11 in a separated manner.

Further, an operation shaft mounting groove 26 extending along the insertion direction of the cartridge body 21 is formed at the substantially central portion on the upper surface side of the cartridge body 21. An operating shaft 27 of the cleaning head 25 is arranged in the operating shaft mounting groove 26. The cartridge body 21
A shaft cover 28 that covers the operation shaft mounting groove 26 is attached to the upper surface side of the. And this shaft cover 2
The operation shaft 27 is rotatably supported between the shaft 8 and the operation shaft mounting groove 26.

The cleaning head 25 is fixed to the tip of the operation shaft 27 via an E-ring 32 and a polyslider washer 33. The base end of the operation shaft 27 extends toward the base end of the insertion portion 21 of the cartridge body 21, and the operation lever 30 of the cleaning head 25 is fixed to the extended end of the operation shaft 27. Then, the rotation of the operation lever 30 causes the clear.
The brush 25a of the head 25 is rotated between a standby position in which it is separated from the objective lens 17 of the optical head 16 and a cleaning position in which the objective lens 17 is cleaned by the brush 25a.

A spring member 31 is attached to the operating lever 30 to urge the cleaning head 25 in the standby position. In a normal state in which the operation lever 30 is not rotated, the biasing force of the spring member 31 holds the cleaning head 25 at the standby position. By rotating the operation lever 30 against the biasing force of the spring member 31, the cleaning head 25 is rotated and the objective lens 17 of the optical head 16 is cleaned. .

By the way, FIG. 1 shows the cleaning head 25. The cleaning head 25 has first and second mounting surfaces 3 whose side surfaces have different angles.
It has 5, 36. The first mounting surface 35 has a first
Of the cleaning brush 37 is attached, and the second cleaning brush 38 is attached to the second attachment surface 36.

The first cleaning brush 37 is made of a material suitable for wet cleaning, for example, a synthetic fiber moquette which has a strong brush and has a high ability to remove dirt by slidingly contacting the lens surface with an appropriate pressure. Is formed by.

The second cleaning brush 38 is also used.
Is formed of a material suitable for dry cleaning, for example, natural fiber wool having a high degree of moisture absorption and effectively absorbing the remaining cleaning liquid.

Next, the operation of the above configuration will be described.
When cleaning the objective lens 17 of the optical head 16 in the optical disk device main body 11, first, a cleaning liquid is attached to the first cleaning brush 37 of the cartridge 12 from a cleaning liquid container (not shown). . After a while,
As shown in FIG. 2, the cartridge 12 is replaced with the optical disk cartridge and is inserted from the cartridge insertion port 14 of the optical disk device main body 11. Here, the distal end portion of the insertion portion 22 of the cartridge body 21 is the optical disk device body 11
Before being inserted into the optical disc mounting position, the protruding portion 24 of the cartridge main body 21 is brought into contact with the peripheral portion of the cartridge insertion opening 14 of the optical disc device main body 11 when the optical disc device main body 11 is inserted halfway. It Therefore, the insertion operation of the insertion portion 22 of the cartridge body 21 thereafter is restricted.

At the time when the cleaning cartridge 12 is inserted to the above-mentioned insertion regulation position, as shown in FIG. 1, the second cleaning brush 38 of the cartridge body 21 of the optical head 16 of the optical disc apparatus body 11 is moved. It is arranged at a position facing away from the objective lens 17. At this time, the operating lever 30 of the cleaning cartridge 12 is arranged outside the optical disk device body 11. And
In a normal state where the operation lever 30 is not rotated, the brush 25a is held at the standby position by the urging force of the spring member 31.

From this state, the operating lever 30 is manually rotated against the biasing force of the spring member 31. As a result, the first and second cleaning brushes 37, 38 are pivotally operated. By this pivoting operation, first, the second cleaning brush (dry type) 38 without the cleaning liquid serves as the objective lens 17. The surface is rubbed, and then a first cleaning brush (wet type) 37 is brought into sliding contact with the surface of the objective lens 17 to remove dust on the surface of the objective lens 17 and dirt such as a tar of a cigarette. Then, the operation lever 30 is rotated in the opposite direction, and by this rotation, the first cleaning brush (wet type) 37 is brought into sliding contact with the surface of the objective lens 17, and then the second cleaning brush. The (dry type) 38 rubs the surface of the objective lens 17 to absorb and remove the cleaning liquid attached to the surface of the objective lens 17.

Thereafter, in the same manner, the operating lever 30 is rotated in the forward and reverse directions to selectively slide the first and second cleaning brushes 37 and 38 onto the objective lens 17 for cleaning. Is done.

As described above, the objective lens 17 is cleared.
At the time of cleaning, the cleaning liquid adhering to the surface of the objective lens 17 is wiped off by the second cleaning brush (dry type) 38, so that the cleaning liquid does not remain on the surface of the objective lens 17 and a good cleaning is performed. -Training becomes possible.

The first cleaning brush 37 is also used.
Since a synthetic fiber moquette suitable for wet cleaning is used as the material of the above, the brush has a strong elasticity and can be brought into sliding contact with the lens surface with an appropriate pressure to enhance the ability to remove dirt.

The second cleaning brush 38 is also used.
Since natural fiber wool suitable for dry cleaning is used as the material for the above, the moisture absorption capacity is high and the remaining cleaning liquid can be more effectively absorbed.

It should be noted that the present invention is not limited to the above-mentioned embodiment, but may be as shown in FIG. That is, the first cleaning brush 41 having a short bristle is mounted on the first mounting surface 35 of the cleaning head 25, and the second mounting surface 36 of the cleaning head 25 has a long bristle. A second cleaning brush 42 is attached.

The first cleaning brush 41 having a short bristle length is used for wet cleaning, and the cleaning liquid is efficiently applied to the surface of the objective lens 17 (if the bristle is long, the cleaning liquid is dispersed and the lens surface is covered). The amount applied will be reduced.)

The second cleaning brush 42 having a long bristle length is used for dry cleaning. Then, by rotating the operation lever 30, the second cleaning brush (dry type) 42 and the first cleaning brush (wet type) 41.
After being brought into sliding contact with the surface of the objective lens 17 in this order, the first lever (wet type) 41 and the second cleaning brush (dry type) 41 are rotated by rotating the operation lever 30 in the opposite direction.
The surface of the objective lens 17 is cleaned by being brought into sliding contact with the surface of the objective lens 17 in the order of 42. By this cleaning, the cleaning liquid on the surface of the objective lens 17 is wiped off by the second cleaning brush (dry type) 42 and does not remain.

[0034]

As described above, according to the present invention, the cleaning liquid is adhered to one of the first and second cleaning brushes, and the cleaning head is rotated to rotate the cleaning head to the first and second cleaning brushes. Since the cleaning brush No. 2 is selectively brought into sliding contact with the objective lens for cleaning, the cleaning liquid adhering to the surface of the objective lens at the time of cleaning is the cleaning liquid without the other cleaning liquid. Can be wiped off with a brush. Therefore, the cleaning liquid does not remain on the surface of the objective lens, and good cleaning becomes possible.

Further, since a synthetic fiber moquette suitable for wet cleaning is used as the material of the first cleaning brush, the brush has a strong rigidity and is brought into slidable contact with the lens surface with an appropriate pressure to remove dirt. Can be increased.

Further, since natural fiber wool suitable for dry cleaning is used as the material of the second cleaning brush, it has a high hygroscopic capacity and can more effectively absorb the remaining cleaning liquid. it can.

Furthermore, since the brush of the cleaning brush to which the cleaning liquid adheres has a short dimension, the cleaning liquid is efficiently applied to the surface of the objective lens (if the cleaning liquid is long, the cleaning liquid is dispersed. And the amount applied to the lens surface is reduced.) And has a high cleaning ability.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a cleaning head that is an embodiment of the present invention.

2 is a configuration diagram showing a state where a cleaning cartridge having the cleaning head of FIG. 1 is inserted into an optical disk device.

3A and 3B show a cleaning cartridge including the cleaning head of FIG. 1, FIG. 3A being a plan view thereof and FIG. 3B being a front view thereof.

4 is a plan view showing the internal structure of the cleaning cartridge shown in FIG.

FIG. 5 is a configuration diagram showing a cleaning head which is another embodiment of the present invention.

[Explanation of symbols]

Reference numeral 17 ... Objective lens, 11 ... Optical disk device, 12 ... Cleaning cartridge, 27 ... Operating shaft, 25 ... Cleaning head, 35 ... First mounting surface, 36 ... Second mounting surface, 37, 41 ... First cleaning brush, 38,4
2 ... Second cleaning brush.

Claims (4)

[Claims] 1. A cleaning cartridge to be inserted into an optical disk device equipped with an objective lens, an operating shaft rotatably mounted on the cleaning cartridge, and a distal end portion of the operating shaft. A cleaning head, and a cleaning liquid provided on one of the cleaning heads, and a cleaning liquid is adhered to one of the cleaning heads, and the cleaning liquid is selectively slidably contacted with the objective lens by the rotation of the cleaning heads. 1. A lens cleaning device comprising: a first cleaning brush and a second cleaning brush. 2. A cleaning cartridge to be inserted into an optical disk device equipped with an objective lens, an operating shaft rotatably mounted on the cleaning cartridge, and a distal end portion of the operating shaft. A cleaning head, and a cleaning liquid provided on one of the cleaning heads, and a cleaning liquid is adhered to one of the cleaning heads, and the cleaning liquid is selectively slidably contacted with the objective lens by the rotation of the cleaning heads. A first cleaning brush and a second cleaning brush, wherein one of the first cleaning brush and the second cleaning brush to which the cleaning liquid is attached is made of a hygroscopic fiber material. The lens cleaning device is characterized in that the other brush is made of a hard fiber material. 3. A cleaning cartridge to be inserted into an optical disk device equipped with an objective lens, an operating shaft rotatably mounted on the cleaning cartridge, and a distal end portion of the operating shaft. A cleaning head, and a cleaning liquid provided on one of the cleaning heads, and a cleaning liquid is adhered to one of the cleaning heads, and the cleaning liquid is selectively slidably contacted with the objective lens by the rotation of the cleaning heads. A first cleaning brush and a second cleaning brush, wherein one of the first and second cleaning brushes to which the cleaning liquid is attached has a short dimension, and the other brush is A lens cleaning device having a long dimension. 4. A cleaning cartridge which is inserted into an optical disk device having an objective lens, an operating shaft which is rotatably mounted on the cleaning cartridge, and an angle which is provided at a tip portion of the operating shaft. And a cleaning head having first and second mounting surfaces different from each other, and the cleaning head is mounted on the first and second mounting surfaces of the cleaning head, and the cleaning liquid is attached to either one of them. And second cleaning for selectively slidingly contacting the objective lens by the rotation of the cleaning head.
A cleaning brush for the lens cleaning device.