JPH0110728Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a self-propelled static eliminator that removes static electricity charged on a disc-shaped record carrier such as a record or disc using ions generated by discharge.
This prevents ions generated by discharge from unnecessarily staying between the disk and the static eliminator, thereby preventing the disk and the static eliminator from being reversely charged.

For example, when using a static eliminator to remove static electricity from a record, the static eliminator is rotated over the record while an electric discharge is generated within the static eliminator, and the resulting ions are sprayed onto the record to create a record. There are products that neutralize and remove static electricity.
Such static eliminators have become increasingly popular in recent years because they have the advantage of being able to eliminate static electricity without contacting the record, and also of removing static electricity within the sound grooves of the record. Therefore, when removing static electricity from a record using this type of static eliminator, it is advantageous to place the ion jet outlet as close to the record as possible in order to increase the static elimination effect, but it is not recommended to place it too close to the record. Then, the space between the bottom of the static eliminator and the record becomes narrow, and air flow relative to the bottom of the static eliminator becomes poor and stagnates, causing the record and the bottom of the static eliminator to become negatively charged.

Therefore, the present invention has been developed in view of this point, and the ion ejection port formed at the bottom of the static eliminator is provided on the rear side with respect to the direction of rotation of the static eliminator, so that the static eliminator can eject ions. The static eliminator passes through the ion ejecting section almost at the same time as the static eliminator passes through the ion ejecting section, thereby preventing ions from remaining between the static eliminator and the board.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A self-propelled static eliminator for record discs will be described below as one embodiment of the present invention with reference to the drawings.

1 to 4 are a partially cutaway plan view, a side view, a bottom view, and a partially cutaway front view of the static eliminator 1, and the main body case 2 of the static eliminator 1 has a wide base end 2.
₁ and a tip 2 ₂ that is slightly narrower than this. A motor 3 and pulleys 4 1 to ₄ are installed at the base end 2 ₁ .
_A drive device such as a drive device such as a drive device is built in, and a drive wheel 5 for self-propulsion driven by the drive device is provided at the bottom. In addition, on the top and bottom, there are switch buttons 6,
A spindle insertion hole 7 and auxiliary wheels 8 ₁ and 8 ₂ are provided.

The tip portion 2 ₂ is a long box-shaped body that is slightly longer than the width of the recording section of the record disc 9, and the length of the tip portion 2 ₂ is located on the rear side of the bottom plate 10 with respect to the rotation direction A of the static eliminator 1. An elongated ion ejection port 11 along the horizontal direction
is formed. The opening surface 11' of the ion ejection port 11 is a tapered surface that widens downward as shown in FIG. 4, and the discharge electrode plate 12 and the cathode plate extend along both longitudinal edges. 13 are erected. Further, in order to effectively spray the ions onto the record 9, the distance t between the bottom plate 10 and the record 9 is made quite small. 14 is a turntable, and 15 is a spindle.

This static eliminator 1 has the above-mentioned configuration, and when it is set on the record 9 and the switch button 6 is pressed,
It rotates on the record 9 by itself around the spindle 15, and at the same time, a corona discharge is generated between the discharge electrode plate 12 and the cathode plate 13, and the generated ions descend from the ion spout 11 toward the record 9. death,
To neutralize and remove the electric charge on the record 9. in this case,
As described above, since the distance t between the bottom plate 10 in which the ion ejection ports 11 are formed and the record disc 9 is small, the ions can reach the record disc 9 very easily and the electrostatic charge can be effectively removed.

Now, not all of the ions descending from the ion spout 11 are consumed to remove the charge from the record 9, and a considerable amount of the ions remain. In particular, for example, when the record disc 9 is negatively charged, only positive ions are consumed to remove the charge, and most of the negative ions remain. However, when such residual ions stay between the record 9 and the bottom plate 10, the record 9
Not only are they reversely charged by the accumulated ions, but the bottom plate 10 is also charged, which may have an adverse electrical effect on the electrical system built into the main body case 2, such as the generation of noise.

However, the ion spout 11 of the present static eliminator 1
is formed on the rear side of the bottom plate 10 with respect to the rotational direction A of the static eliminator 1, so that the static eliminator 1 passes through the ion ejection part almost at the same time as ejecting the ions. Therefore, the bottom plate 10 and the record disc 9
The ions do not stay between the two, and quickly scatter into the air behind the record 9 and the bottom plate 1.
0 will not be reversely charged.

FIG. 5 is a partial perspective view of another embodiment of the present invention, showing the bottom plate 18 of the main body case 17 of the static eliminator 16.
An elongated ion ejection port 19 is formed on the rear side with respect to the rotational direction A, and a tip 17 of the main body case 17 is connected to the ion ejection port 19 at the front part of the ion ejection port 19. A plurality of grooves 20 ₁ , 20 ₂ , . . . 20 ₅ are formed extending in the width direction of the grooves ₂ . These grooves 20 ₁ to 20 ₅ are provided for air guidance, and when the static eliminator 16 rotates in the direction of arrow A, air flows smoothly in each groove 20 ₁ to 20 ₅ in a rectified state. . Therefore, the ions that would like to stay between the bottom plate 18 and the record disc 9 are quickly scattered into the air behind the static eliminator 16, making it possible to further prevent reverse charging of the record disc 9 and the bottom plate 18. can. Note that the air flow in this description refers to the flow relative to the main body case bottom plate 18.

Although the above embodiment describes a static eliminator for record discs, the present invention is not limited to this and can be widely applied to disc-shaped record carriers such as disc discs on which information is recorded on the surface. .

As explained above, the static eliminators 1 and 16 according to the present invention have main body cases 2 and 1 of the static eliminators 1 and 16.
Ion ejection port 1 formed at the bottom 10, 18 of 7
1 and 19 are provided on the rear side with respect to the rotational direction A of the static eliminators 1 and 16, so that the bottom part 1
0 and 18 and a disc-shaped record carrier such as a record disc, and the disc-shaped record carrier and the bottom parts 10 and 18 of the main body case are not charged in the opposite direction.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway plan view of the static eliminator, Fig. 2 is a side view of the same, Fig. 3 is a bottom view of the same, and Fig. 4 is a partially cutaway view of the same. The cutaway front view and FIG. 5 are partial perspective views of another embodiment. 1, 16... Static eliminator, 2, 17... Main body case, 10, 18... Bottom plate, 11, 19... Ion spout.

Claims (1)

[Scope of utility model registration request] Bottom part 1 of main body case 2, 17 of static eliminator 1, 16
The ion ejection ports 11, 19 formed at 0,18,
A self-propelled static eliminator for a disk-shaped record carrier, which is provided on the rear side of the static eliminators 1 and 16 in the rotational direction A.