JP2514950Y2 - Corona discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a corona discharge device, and more particularly to a corona discharge device characterized by a discharge wire tensioning mechanism.

[Conventional technology]

FIG. 8 is a vertical cross-sectional view of a corona discharge device according to a conventional example, in which 1 is a shield case, 2 and 3 are end blocks provided at both ends of the shield case 1, and 4 is fixed to the end block 2. An electrode 5 is a coil spring having one end locked to the electrode 2 and having elasticity in the pulling direction, and 6 is a discharge wire having one end locked to the coil spring 5, which is formed integrally with the other end. The coil spring portion 6a is engaged with a hook 7 provided upright in the other end block 3.

In the corona discharge device having such a structure, when the discharge wire is stretched, the coil spring portion 6a, which is one end of the discharge wire, is attached to the hook 7 with a pin set or a thin rod.
It was pushed further down the hook.

It should be noted that as one of the related technologies of this kind,
19143 can be mentioned.

[Problems to be solved by the device]

In the above-mentioned conventional technique, there is a problem that it takes a lot of time to stretch the discharge wire, and the discharge wire is cut when the user is not accustomed to the work.

An object of the present invention is to provide a corona discharge device having a structure that facilitates the work of stretching a discharge wire.

[Means for solving the problem]

The above object is to provide a pair of end blocks provided at both ends of the shield case, a discharge wire having one end locked to an electrode fixed to one of the end blocks via a coil spring, and the other of the end blocks. A hook provided on the other end of the discharge wire and a rotating plate to which the hook is fixed, and the rotating plate holds the other end of the discharge wire and the coil spring. In a corona discharge device that rotates between a tension position for pulling the discharge wire against and against the discharge wire, when the rotation plate is positioned at the tension position of the discharge wire, the discharge wire is attached to one end of the rotation plate. This is achieved by providing a regulating portion that abuts and regulates the height position of the discharge line.

[Action]

When the discharge plate is attached to the hook, the rotating plate is rotated together with the hook to a position where the hook and the discharge line are easily locked (locking position), and the discharge plate is locked at the locking position. After that, it rotates in the direction of pulling the discharge wire. When the rotary plate is located at the position where the discharge line is stretched, the discharge line is stretched, and the regulating portion provided on the rotary plate contacts the discharge line to regulate the height position of the discharge line.

〔Example〕

First, a reference example for explaining an embodiment of the present invention will be described with reference to the drawings. It should be noted that constituent elements that are the same as or can be regarded as the same as those in the reference example and the embodiment are denoted by the same reference numerals, and redundant description will be omitted.

1 and 2 are configuration diagrams of a first reference example for explaining an embodiment of a corona discharge device according to the present invention, in which FIG. 1 is at the time of attaching a discharge wire and FIG. 2 is after being attached. Shows the state of.

In the figure, 8 is a rotary plate that fixes the hook 7 and rotates around a fulcrum 9 (the hook 7 and the rotary plate 8 constitute the discharge line fixing member A), and 10 is a high plate which is erected on the shield case 1. Positioning member, 11 is an end block shielding member, 12
Is a pressing member provided below the shielding member 11.

When locking the discharge wire 6 in the notch 7a of the hook 7,
As shown in FIG. 1, the rotary plate 8 is rotated counterclockwise around the fulcrum 9. As a result, the hook 7 can be positioned (locking position) sufficiently close to the end of the discharge wire 6 without pulling the discharge wire 6 against the coil spring 5. At this time, the rotation restricting portion 8a of the rotating plate 8 comes into contact with the bottom surface of the shield case 1 to prevent the hook 7 from falling more than necessary toward the discharge line 6.

At the position shown in FIG. 1, after locking one end of the discharge wire 6 in the notch 7a of the hook 7 and then hanging the shield plate 11, the pressing member 12 comes into contact with the rotary plate 8 and As shown
The rotary plate 8 is rotated clockwise to make contact with the bottom surface of the shield case 1. Due to this rotation, the hook 7 also comes to a predetermined position (stretching position), and the discharge wire 6 locked to this hook 7 is pulled against the pulling force of the coil spring 5, whereby the upper surface of the shield case 1 is pulled. Will be stretched over.

At this time, the discharge line 6 contacts the height positioning member 10, and the height of the shield case 1 with respect to the bottom surface is restricted. When the discharge line 6 is locked (state of FIG. 1), the discharge line 6
Since the height positioning member 10 is separated from the height positioning member 10 and there is no friction between them, the coil spring portion 6a shown in the conventional example is not necessary.

FIG. 3 is a vertical cross-sectional view of a second reference example for explaining the embodiment of the present invention, in which the rotary plate 8 on which the hooks 7 are erected is supported on the bottom portion of the end block 3 and the height is increased. The positioning member 10 is also supported on the bottom of the end block 3.

FIG. 4 is a vertical sectional view of a third reference example for explaining the embodiment of the present invention. In this reference example, the hook 7 is inclined to the side opposite to the discharge line 6 with respect to the rotary plate 8. By providing the discharge line 6, the discharge line 6 is more difficult to come off.

FIG. 5 is a vertical cross-sectional view of an embodiment of the corona discharge device according to the present invention, in which the rotation regulating portion 8a of the rotary plate 8 is shown.
The tip end of the discharge wire 6 is extended to come into contact with the discharge wire 6 at the position where the discharge wire 6 is stretched to regulate the height position. As a result, the extended leading edge functions as a restriction portion that restricts the height position of the discharge line. Further, since the rotating plate 8 is held down by the screw 13, the height of the discharge wire 6 can be adjusted by this.

6 and 7 are main part configuration diagrams of another embodiment of the end block portion. FIG. 6 shows the discharge wire 6 in a locked state, and FIG. 7 shows the discharge wire 6 in a stretched state. However, in this embodiment, the end block 3 itself is rotatable about the fulcrum 14 (in this case, the end block 3 is regarded as the rotary plate 8), and the hook 7 is positioned as shown in FIG. Position) so that it can be easily locked by the discharge wire 6 and that the discharge wire 6 is stretched by rotating clockwise as shown in FIG. 7 and stopping at the tension position. You can

[Effect of device]

As described above, according to the present invention, at one end of the rotary plate that rotates between the position where the discharge wire is locked and the position where the discharge wire is stretched, the rotary plate is located at the position where the discharge wire is stretched. Since the regulating portion that regulates the height position of the discharge line is provided in such a case, it is possible to stretch the discharge line and adjust the height at the same time when the rotary plate is in the stretching position.

[Brief description of drawings]

1 and 2 are longitudinal sectional views of a first reference example for explaining an embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of a second reference example for explaining an embodiment of the present invention. FIG. 4 is a vertical sectional view of a third reference example for explaining an embodiment of the present invention, FIG. 5 is a vertical sectional view showing an embodiment of a corona discharge device according to the present invention, FIG. 6 and FIG. FIG. 7 is a main part configuration diagram of another embodiment of the end block in the corona discharge device according to the present invention, and FIG. 8 is a vertical cross-sectional view of the corona discharge device according to the conventional example. 1 ... Shield case, 2,3 ... End block, 6 ...
... discharge line, 7 ... hook, 8 ... rotating plate, A ... discharge line fixing member.

Claims (1)

(57) [Scope of utility model registration request] 1. A pair of end blocks provided at both ends of a shield case, a discharge wire whose one end is locked to an electrode fixed to one of the end blocks via a coil spring, and the other of the end blocks. A hook for locking the other end of the discharge wire and a rotating plate to which the hook is fixed. The rotating plate locks the other end of the discharge wire and the coil. In a corona discharge device that rotates between a tension position for pulling the discharge wire against a spring, at one end of the rotary plate, when the rotary plate is positioned at the tension position of the discharge wire, the discharge wire A corona discharge device, which is provided with a regulating portion that abuts against a height position of the discharge line.