JPH10143910A - Lens cleaner for cd player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens cleaner in contact with an objective lens, capable of cleaning it without adversely affecting it, surely holding a cleaning brush and easy to deal with it and also easy to exchange the brush. SOLUTION: The lens cleaner 1 for a CD player is constituted so that recess hole 2b opposite to the central shaft of the rotation of the CD player is formed on a brush holder 2 placeable on the CD player, and a brush holding hole 2c opposite to the objective lens of an optical pickup is formed, and the cleaning brush 3 is inserted into this brush holding hole 2c to be held. The cleaning brush 3 is provided with a brush main body 3a vertically movably inserted into the brush holding hole 2c, an engagement part 3b provided on the head part of this brush main body 3a and larger than the brush holding hole 2c and the brush 3c flocked on the brush main body 3a, insertable into the brush holding hole 2c and formed by an elastic body extending larger than the brush holding hole 2c after inserted.

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]

In order to solve the above-mentioned problems and to achieve the object, a lens cleaner for a CD player according to the first aspect of the present invention comprises a brush holder that can be mounted on a CD player and a CD holder. A clearance hole facing the rotation center axis of the player is formed, and a brush holding hole facing the objective lens of the optical pickup is formed. A cleaning brush is inserted and held in the brush holding hole, and the cleaning brush holds the brush. A brush main body which is inserted into the hole so as to be movable up and down, a locking portion provided on the head of the brush main body, and which is larger than the brush holding hole; Is characterized in that it has a brush formed of an elastic body that is larger than the brush holding hole.

With the brush holder mounted on a 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 vertically movably inserted into the brush holding hole of the brush holder, only the weight of the cleaning brush is applied to the objective lens during 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.

In addition, 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 handling and is easy to handle.

When the cleaning brush is replaced, the elastic brush can be easily pulled out of the brush holding hole by pulling while holding the engaging portion. The new cleaning brush can be easily inserted by bending the elastic brush into the brush holding hole of the brush holder, and the brush can be easily replaced.

[0010]

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.

[0011] The lens cleaner 1 for a CD player includes:
It comprises a brush holder 2 and a cleaning brush 3.
The brush holder 2 can be mounted on the CD player 4, and an escape hole 2 b facing the rotation center axis 5 of the CD player 4 is formed in the holder main body 2 a, and further faces the objective lens 7 of the optical pickup 6. A brush holding hole 2c is formed.

The cleaning brush 3 is inserted and held in the brush holding hole 2c. 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 is implanted in the brush main body 3a. This brush 3
c can be bent and inserted into the brush holding hole 2c, and after insertion, spreads wider 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 and used. The cleaner 3 is applied to the brush 3c of the cleaning brush 3, and the brush 3c can be brought into contact with the objective lens 7 of the optical pickup 6 in a state where the brush holder 2 is placed on the CD player 4, so that the objective lens 7 can be easily moved. Can be cleaned. At this time, since the cleaning brush 3 is inserted into the brush holding hole 2c of the brush holder 2 so as to be vertically movable, the cleaning brush 3 only applies its own weight to the objective lens 7 at the time of cleaning, so that an excessive load is applied. Therefore, the cleaning can be reliably performed without adversely affecting the objective lens 7.

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 elastic brush 3c can be easily pulled out from the brush holding hole 2c by pulling while holding the engaging portion 3b. New cleaning brush 3
Can be easily inserted by bending the elastic brush 3c 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 the cleaner case, and FIG. 7 is a view showing a state in which a cleaning brush is set in the 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.

[0018]

As described above, according to the first aspect of the present invention, the cleaning brush held by the brush holder is brought into contact with the objective lens of the optical pickup with the brush holder mounted on the CD player. Can be cleaned. At this time, since the cleaning brush is vertically movably inserted into the brush holding hole of the brush holder, only the weight of the cleaning brush is applied to the objective lens during 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, and the cleaning brush is prevented from dropping during handling, and is easy to handle.

At the time of replacement of the cleaning brush, the elastic brush can be easily pulled out from the brush holding hole by pulling while holding the engaging portion. The new cleaning brush can be easily inserted by bending the elastic 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 showing 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)

[Claims] A brush holder mountable on a CD player has a relief hole facing a rotation center axis of the CD player and a brush holding hole facing an objective lens of an optical pickup. A cleaning brush is inserted and held in a holding hole, and the cleaning brush is inserted into the brush holding hole so as to be vertically movable, and a locking portion provided at a head of the brush body and larger than the brush holding hole. A lens cleaner for a CD player, comprising a brush that is implanted in the brush body and that can be inserted into the brush holding hole, and that after insertion is formed of an elastic body that is larger than the brush holding hole.