JP3254515B2 - Lens cleaner for CD player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens cleaner for a CD player that can clean an objective lens of an optical pickup.

[0002]

2. Description of the Related Art As a digital audio system using an optical disk, there is a compact disk, and storage information is stored in this compact disk with or without a projection called a pit. There is an optical pickup as a reproducing apparatus for detecting the presence or absence of pits engraved on the compact disk. The optical pickup focuses light from a light source on a signal surface of the compact disk via an objective lens, and is reflected on the signal surface. The detected light is detected by a photodetector to detect the presence or absence of a pit.

Since dust easily adheres to the objective lens of the optical pickup, and if the dust adheres, it is not possible to accurately detect the presence or absence of a pit.
Some optical pickups are provided with a brush for cleaning by contacting the objective lens of the optical pickup.

[0004]

As described above, the optical disk provided with the cleaning brush has a complicated structure of the optical disk, and the brush is a consumable item, but replacement of the brush is troublesome.

[0005] The present invention has been made in view of the above point, and can be reliably cleaned without contacting the objective lens and adversely affecting the objective lens, and furthermore, the cleaning brush is securely held and easy to handle. It is another object of the present invention to provide a lens cleaner for a CD player in which a brush can be easily replaced.

[0006]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to the first aspect of the present invention, a relief hole facing a rotation center axis of a CD player is provided in a brush holder which is detachably mountable on a spindle of a CD player and which can be manually moved while mounted. And a brush holding hole facing the objective lens of the optical pickup is formed, and a cleaning brush is inserted and held in the brush holding hole so as to be vertically movable, and the cleaning brush is vertically movable in the brush holding hole. A brush body to be inserted, a locking portion provided on the head of the brush body and larger than the brush holding hole, and being implanted in the brush body so as to be wider than the brush holding hole, and bent into the brush holding hole. A brush that returns from the bent state to the original state after insertion and spreads larger than the brush holding hole, and the cleaning brush is attached to the objective lens during cleaning. It said brush is in contact with the heavy, lens cleaner CD player, which is a possible cleaning the objective lens. ].

According to the first aspect of the present invention, by manually moving the brush holder while the brush holder is mounted on the spindle of the CD player, the cleaning brush held by the brush holder is lighted. It can be easily cleaned by contacting the objective lens of the pickup. At this time, since the cleaning brush is inserted into the brush holding hole of the brush holder so as to be vertically movable, only the weight of the cleaning brush is applied to the objective lens at the time of cleaning, so that an excessive load is not applied and the objective lens is adversely affected. The cleaning can be performed without giving any dust.

Further, the cleaning brush is securely held by the brush holder by the locking portion and the brush, so that the cleaning brush is prevented from dropping during the handling and is easy to handle.

When replacing the cleaning brush, the brush is bent by pulling while holding the locking portion, so that the brush can be easily pulled out from the brush holding hole. The new cleaning brush can be easily inserted by bending the brush into the brush holding hole of the brush holder, and the brush can be easily replaced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a lens cleaner for a CD player according to the present invention will be described below with reference to the drawings. 1 is a side view of a lens cleaner for a CD player, FIG. 2 is a plan view of a lens cleaner for a CD player, FIG. 3 is a plan view of a cleaner case, FIG. 4 is a view showing an optical pickup section of a CD player, and FIG. It is a figure showing a state.

The lens cleaner 1 for a CD player includes:
It comprises a brush holder 2 and a cleaning brush 3.
The brush holder 2 includes a spindle 41 of the CD player 4.
It is detachable on the top, and can be mounted and manually moved while mounted. The holder body 2a has an escape hole 2b facing the rotation center axis 5 of the CD player 4, and further has a brush holding hole 2c facing the objective lens 7 of the optical pickup 6.

The cleaning brush 3 is inserted and held in the brush holding hole 2c so as to be vertically movable. The cleaning brush 3 includes a brush main body 3a, a locking portion 3b, and a brush 3c. The brush main body 3a is vertically movably inserted into the brush holding hole 2c. An engaging portion 3b is integrally provided on the head of the brush main body 3a, and the engaging portion 3b is formed larger than the brush holding hole 2c. The brush 3c is formed of an elastic body such as a resin, and has a brush holding hole 2 formed in the brush body 3a.
It is planted in a state where it is wider than c. This brush 3c
Can be bent and inserted into the brush holding hole 2c, and after insertion, return from the bent state to the original state, and extend to a greater extent than the brush holding hole 2c.

When not in use, the brush holder 2 is set in the cleaner case 10 with the cleaning brush 3 attached. The cleaner case 10 has a brush holder holding portion 10a, a cleaner liquid reservoir 10b, and a brush holding portion 10c. The brush holder 2 has the holder main body 2a set on the brush holder holding portion 10a. The spare cleaning brush 3 is held by the brush holding unit 10c, and the cleaning brush 3 can always be prepared in a replaceable state.

At the time of cleaning, an appropriate amount of cleaner liquid is put into the cleaner liquid reservoir 10b for use. The cleaning liquid is applied to the brush 3c of the cleaning brush 3, and the brush holder 2 is manually moved with the brush holder 2 placed on the CD player 4, and the brush 3c is brought into contact with the objective lens 7 of the optical pickup 6 for cleaning.

That is, the fixed disk 4 of the CD player 4
4, a guide hole 40a is formed in the direction in which the objective lens 7 of the optical pickup 6 moves, and a CD 42 is mounted on the spindle 41 of the rotation center shaft 5, as shown in FIG.
While the information is read by the movement of the objective lens 7 and the rotation of the CD 42, the brush holder 2 is placed on the spindle 41 with the CD 42 removed during cleaning, as shown in FIG.

In this state, when the brush holder 2 is manually moved in the direction of the arrow, the cleaning brush 3 comes into contact with the objective lens 7 while being inserted into the guide hole 40a, and the objective lens 7 can be easily cleaned. it can. At this time, cleaning brush 3
Is vertically inserted into the brush holding hole 2c of the brush holder 2 so that the cleaning brush 3 only weighs itself on the objective lens 7 at the time of cleaning, so that an excessive load is not applied and the objective lens 7 is adversely affected. The cleaning can be performed without giving any dust.

Further, the cleaning brush 3 is securely held by the brush holder 2 by the locking portion 3b and the brush 3c, so that the cleaning brush 3 is prevented from dropping during handling, and is easy to handle.

When the cleaning brush 3 is replaced, the brush 3c bends by pulling it while holding the engaging portion 3b, so that the brush 3c can be easily pulled out from the brush holding hole 2c. New cleaning brush 3
The brush 3c can be bent and easily inserted into the brush holding hole 2c of the brush holder 2, and the brush can be easily replaced.

FIG. 6 is a view showing another embodiment of a cleaner case, and FIG. 7 is a view showing a state in which a cleaning brush is set in a cleaner case of another embodiment. In the cleaner case 10 and the cleaning brush 3 of this embodiment, the members denoted by the same reference numerals as those in the embodiment of FIGS. In cleaner case 10,
A groove 10d is formed, and the cleaning brush 3 is formed in the groove 10d.
The brush 3c is set so as to be positioned, so that the brush 3c does not bend at the time of setting. Further, at the time of cleaning, a cleaner liquid container 20 containing a cleaner liquid can be placed in the groove 10d.

[0021]

As described above, according to the first aspect of the present invention, the brush holder is manually moved while the brush holder is mounted on the spindle of the CD player.
The cleaning brush held by the brush holder can be easily cleaned by contacting the objective lens of the optical pickup. At this time, since the cleaning brush is inserted into the brush holding hole of the brush holder so as to be vertically movable, only the weight of the cleaning brush is applied to the objective lens at the time of cleaning, so that an excessive load is not applied and the objective lens is adversely affected. The cleaning can be performed without giving any dust.

Further, the cleaning brush is securely held on the brush holder by the locking portion and the brush, so that the cleaning brush is prevented from dropping during handling, and is easy to handle.

When the cleaning brush is replaced, the brush is bent by pulling while holding the locking portion, so that the brush can be easily pulled out from the brush holding hole. The new cleaning brush can be easily inserted by bending the brush into the brush holding hole of the brush holder, and the brush can be easily replaced.

[Brief description of the drawings]

FIG. 1 is a side view of a lens cleaner for a CD player.

FIG. 2 is a plan view of a lens cleaner for a CD player.

FIG. 3 is a plan view of a cleaner case.

FIG. 4 is a diagram showing an optical pickup unit of the CD player.

FIG. 5 is a diagram illustrating a cleaning state.

FIG. 6 is a view showing another embodiment of the cleaner case.

FIG. 7 is a diagram illustrating a state in which a cleaning brush is set in a cleaner case according to another embodiment.

[Explanation of symbols]

 Reference Signs List 1 lens cleaner for CD player 2 brush holder 2a holder body 2b relief hole 2c brush holding hole 3 cleaning brush 3a brush body 3b locking portion 3c brush 4 CD player 5 rotation center axis 6 optical pickup 7 objective lens

Claims (1)

(57) [Claims] A brush holder which is detachably mounted on a spindle of a CD player and which can be manually moved while mounted thereon has a relief hole facing a rotation center axis of the CD player and an objective of an optical pickup. A brush holding hole facing the lens is formed, and a cleaning brush is inserted and held in the brush holding hole such that the cleaning brush can move up and down. A locking portion provided on the head of the brush main body and larger than the brush holding hole; and implanted in the brush main body so as to be wider than the brush holding hole, and can be bent and inserted into the brush holding hole and bent after insertion. A brush that returns from the closed state to the original state and spreads larger than the brush holding hole, and the brush contacts the objective lens by its own weight during cleaning. And, lens cleaner CD player, which is a possible cleaning the objective lens.