JPH0114971Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a static eliminator for record discs, in which a record disc is set on the top surface of the main body case of the static eliminator, and the record disc is placed on the top surface of the main body case with the spindle at the center. The charge is removed by spraying ions while rotating on a support rotating body provided.

(Prior Art) Various types of static eliminators have been proposed for record discs, but one in particular that sprays ions generated by electric discharge onto the record disc is capable of eliminating static electricity without contacting the record disc. It has become widely popular in recent years due to its advantages such as the ability to

(Problem to be solved by the invention) However, with this type of conventional static eliminator, the record was placed on a workbench with a spindle upright, and the static eliminator was then set on top of the record. However, since it requires a workbench with a spindle set upright, and the record has to be placed on the workbench and a static eliminator must be set on top of it, it is simply difficult to handle. In addition, when the static eliminator is installed or removed, the static eliminator is easily dropped onto the record, causing damage to the record.

Therefore, an object of the present invention is to provide a static eliminator for record discs that is simple and easy to handle and have a simple structure.

(Means for Solving the Problems) For this purpose, the present invention has a spindle 3 erected at one end of the upper surface of the main body case 2, and a supporting rotating body that supports the record 4 rotatably around the spindle 3. 5 and 7 are provided on the upper surface of this main body case 2, and discharge parts 13 and 1 are provided on this main body case 2.
4, and an ion discharge port 12 for discharging ions generated by the discharge portions 13 and 14 from one end to the other end.

(Function) According to the above configuration, when the record disc 4 is set on the main body case 2 and the record disc 4 is rotated on the supporting rotary body 5 around the spindle 3 while driving the discharge parts 13 and 14, Ions generated by the discharge sections 13 and 14 are emitted from the ion ejection port 12, and remove the electrical charge on the record 4.

(Example 1) Hereinafter, an example of the present invention will be described with reference to the drawings.

1 is a partially cutaway perspective view of the static eliminator according to the present invention, FIG. 2 is a perspective view of the tip, and FIG. 3 is a partially cutaway side view of the static eliminator 1 in use, showing the main body case 2 of the static eliminator 1. is a long box, and a driving device such as a motor M and a battery E is housed in the base end ₂₁ , and a spindle 3 is provided upright at one end of the upper surface. The spindle 3 is made of a conductive material such as brass or copper in order to drain out ions accumulated in the main body case 2, as will be described later.

A drive wheel 5 that supports the record 4 and rotates it around the spindle 3 is provided on the upper surface of the base end 2 ₁ . The drive wheel 5 is driven and rotated by the motor M via a belt, and a rubber member 5' is attached to the circumferential surface of the drive wheel 5 to prevent the record 4 from slipping. Incidentally, instead of attaching the rubber material 5', irregularities may be formed on the circumferential surface of the drive wheel 5. Further, from the upper surface of the base end portion 2 ₁ , the support wheels 7 ₁ , 7 ₂
are protruded slightly, and each support ring 7 ₁ ,
7 and the drive wheel 5 are located on the same circumference of a circle centered on the spindle 3, and serve as a support rotating body that supports the label portion of the record disc 4 at three points and rotates the record disc 4 around the spindle 3. It's summery. Furthermore, in order to reduce the load during driving, the drive wheel 5 and the support wheels 7 ₁ and 7 ₂ are arranged so that their respective rotational directions coincide with the tangential direction of the circle. Note that the support wheels 7 ₁ and 7 ₂ are simply for supporting the record disc 4, and instead of the support wheels 7 ₁ and 7 ₂ , for example, bearings or the like may be provided.

Numerals 8 and 9 are legs that protrude from the bottom corners of the main body case 2, and although they are not shown for convenience of drawing, there are also legs that protrude at positions symmetrical to the legs 8 and 9. The main body case 2 is attached by a total of four legs.
is supported. Of these, the leg 8 protruding from at least one corner of the base end ₂₁ is formed of a conductive material, and a conductive wire 10 is connected to the conductive spindle 3.
is connected to. Copper, brass, or the like may be considered as the material for forming the legs 8, but it is preferable to form them from carbon-containing rubber in order to ensure close contact with the base 11, such as a table.

An ion ejection port 12 for emitting ions is formed on the top surface of the main body case 2 from one end on the spindle 3 side to the other end. Acicular electrode plate 13 and cathode plate 14 as a discharge part that generates discharge
is installed. A high voltage is applied to this needle electrode plate 13 from a high voltage generating circuit of a high voltage circuit board, and the cathode plate 14 is connected to the conductive spindle 3 by a conductive wire 16. Also, the discharge parts 13 and 14
The operating switch section 17 is provided on the tip surface on the other end side so that it can be easily operated with the record disc 4 placed thereon.

Reference numeral 18 denotes a weight disc, which is not particularly required for a normal record disc 4, but is required for a lightweight disc in the form of a sonosheet, and has a center hole 18' formed therein for fitting into the spindle 3. It is loaded onto the record disc 4 during static elimination work to prevent the record disc 4 from slipping, and its diameter is approximately equal to the diameter of the label section.

This static eliminator 1 is configured as described above,
The handling is explained below.

The center hole of the record disc 4 is fitted into the spindle 3, the record disc 4 is set on the main body case 2, and the weight disc 18 is further loaded thereon. Next, when the switch section 17 is operated, the motor M starts driving, and the drive wheels 5 also start rotating. A high voltage is also applied to the needle electrode plate 13, causing corona discharge between it and the cathode plate 14.

Now, when the drive wheel 5 rotates, the record 4 supported by the drive wheel 5 rotates around the spindle 3, and ions generated by corona discharge are emitted from the ion discharge port 12 and sprayed onto the recording section of the record 4. static electricity is neutralized and removed. In this case, the record 4 is supported at three points by each wheel 5, _{7 1} , 7 ₂ , and the rotation direction of each wheel 5, 7 ₁ , 7 ₂ is a circle centered on the spindle 3, which is the center of rotation. Since it is aligned with the tangential direction, record 4
is stably supported and smoothly driven and rotated. Furthermore, since the weight disk 18 is loaded on the record 4, the drive wheel 5 will not spin idly. As shown in FIG. 4, if elasticity is imparted to the spindle 19 by forming a groove 19' and the center hole 4' of the record disc 4 is forcibly fitted, the disc 18 There is no need for a heavy object like this. Furthermore, for example, lightweight discs such as EP discs tend to skid easily, so there is a strong need for a skid prevention device, but heavy discs such as LP discs do not necessarily require skid prevention measures.

Now, some of the ions generated by the corona discharge tend to accumulate inside the main body case 2, but such accumulated ions can cause noise generation in the electrical system such as the high voltage generation circuit built into the main body case 2. It tends to have negative effects such as Therefore, in this static eliminator 1, such ions are immediately removed from the cathode plate 14.
The conductive wire 16, the spindle 3, the conductive wire 1
0, it quickly flows out to the base 11 through the conductive legs 8. Although the conductive spindle 3 is interposed in the ion outflow loop, the cathode plate 14 and the leg 8 may be directly connected by the conductive wire 20 as shown by the imaginary line.

Now, after the record 4 has rotated several times and the static electricity removal has been completed, the switch section 17 is operated to stop the drive. In this case, since the switch part 17 is provided on the front end surface of the main body case 2, the record disc 4
does not interfere with switch operation. When static electricity has been removed from one side of the record 4 in this way, remove the disc 18 and the record 4 from the main case 2, turn the record 4 upside down, and set the record 4 on the main case 2 again. death,
Eliminate static electricity on the other side. After the static electricity removal work on both sides is completed, proceed as above to remove the disk 1.
8 and record 4.

As mentioned above, when setting or removing the record 4 from the working position, there is no need to handle the static eliminator itself, unlike conventional ones.
Handling is easy because only the record 4 needs to be handled, and there is very little risk of damaging the record 4.

Further, it is not necessary to provide a means for ejecting accumulated ions, and therefore the spindle 3 and the legs 8 may be formed of a non-conductor and the conductive wires 10, 16, 20 may be removed. Further, it is advantageous for storage if the spindle 3 is detachably attached to the upper surface of the base end portion 2 ₁ and removed when not in use.

(Embodiment 2) FIG. 5 is a partially cutaway side view of the main part of another embodiment of the present invention, in which a disk-shaped support rotating body 22 is installed on the upper surface of the base end of the static eliminator 21. has been
A spindle 23 is erected in the center.
Further, the rotating body 22 is driven by the pulleys 24 and 2 by the motor M.
5, 26, and is driven and rotated via a belt 27, but bearings 28, 28 are interposed between the upper surface of the base end and the lower surface of the rotating plate 22 in order to eliminate rotational wobbling.

In such a configuration, the record 4 is connected to the rotating body 2.
2 and operate the switch part, the motor M will start operating and the rotary plate 22 will rotate the record disc 4.
The record disc 4 is rotated horizontally while being supported, and static electricity is removed from the record disc 4. In order to prevent the record disc 4 from slipping, the top surface of the rotary plate 22 may be textured, or a rubber sheet with a large coefficient of friction may be attached.

(Effects of the invention) As explained above, in the present invention, the spindle 3 is erected at one end of the upper surface of the main body case 2, and
Support rotating bodies 5 and 7 that rotatably support the record disc 4 around the spindle 3 are provided on the upper surface of the main body case 2, and discharge portions 13 and 14 are provided on the main body case 2, and discharge parts 13 and 14 are provided on the main body case 2. Since the ion discharge port 12 is formed toward the other end to discharge the ions generated by the discharge portions 13 and 14, handling is extremely simple, and static electricity can be easily removed from the record disc 4. Furthermore, the structure is simple because it eliminates the need for a workbench on which a spindle is erected as in conventional means.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a partially cutaway perspective view of the static eliminator, Figure 2 is a perspective view of the tip, Figure 3 is a partially cutaway side view of the static eliminator in use, and Figure 4 is a partially cutaway perspective view of the static eliminator.
FIG. 5 is a partial side view of another embodiment and a partially cutaway side view of the main part, respectively. 1, 21...Static eliminator, 2...Main case, 3,
19, 23...Spindle, 4...Record,
5, 7, 22... Support rotating body, 12... Ion discharge port, 13, 14... Discharge part.

Claims (1)

[Scope of utility model registration request] A spindle 3 is erected at one end of the upper surface of the main body case 2, and supporting rotating bodies 5 and 7 support the record disc 4 rotatably around the spindle 3.
is provided on the upper surface of this main body case 2, and discharging portions 13 and 14 are provided on this main body case 2,
From the one end to the other end, this discharge section 13,
1. A static eliminator for record discs, characterized in that an ion ejection port 12 is formed to emit ions generated by the ion discharger 14.