JPH0339311B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compact cleaning device for cleaning the corotron wire and corotron shield of a corona discharger.

Conventional cleaning methods for corona discharge equipment can be roughly divided into two types:
It was divided into species.

The first method is to first clean the corotron shield and wire with a brush or the like, and in the second cleaning, dry wipe or alcohol wipe with cloth or paper.

A second method is to provide a cleaning member inside the corotron shield, and when cleaning, pull or push the cleaning knob 7 shown in FIG. Cleaning was carried out by sliding 5.

Note that 3 is a corotron block, 4 is a corotron cleaner, and 6 is a connecting member.

Furthermore, conventionally, as shown in FIG. 2, a support member 8 has been provided with a cleaning pad 5 for cleaning the corotron shield 1 and the corotron wire 2.

Although the first method has good cleaning performance, it takes a long time to clean and has the disadvantage that the corotron wire 2 is cut during operation.

In addition, there were many cleaning tools, which made storage difficult.

Although the second method has the advantage of good operability, it has disadvantages such as leaving residue on the corners of the corotron shield 1 and increasing the size and cost of the device itself.

In addition, the application example shown in Fig. 2 has the advantage of being compact and inexpensive, but when this cleaning device is attached to and detached from the corona discharger, the corotron wire 2 is pressed between the cleaning pads 5, so the corotron wire 2 is pressed between the cleaning pads 5. - There was a risk that wire 2 would be cut. Furthermore, similar to the one shown in FIG. 2, there was a problem in that there was leftover wiping at the corners of the corotron shield, that is, at points B and B'.

Another disadvantage is that the means for fixing the cleaning pad 5 at point A is difficult and the number of assembly steps increases.

In order to improve these drawbacks, the present applicant previously proposed a cleaning device shown in FIG. 3.

That is, cleaning pads 5 are attached to both ends of the support member 9, and when cleaning the corotron wire 2 with this cleaning device, the support member 9 is pressed in the D and E directions. The pad 5 had to be slid in the longitudinal direction of the corona discharger.

The present invention has been made in view of the above circumstances, and its purpose is to press the cleaning elastic member, which is a cleaning pad, against the corotron wire by simply pressing the cleaning elastic member against the corotron shield. To provide a cleaning device for a corona discharger that can wipe the device evenly, reduce cleaning time without cutting the corotron wire during attachment and detachment, is inexpensive, has good storage properties, and can be cleaned even by an amateur. be.

Hereinafter, the present invention will be explained with reference to FIG. 4 and subsequent figures.

Both pieces 9a, 9 of the support plate 9 as the support member F
An introduction member 10 is formed on the outer side of b, and a slope 13 is formed on the introduction member 10.

Cleaning pads 5 as cleaning elastic members G are attached to the ends of both members 9a and 9b of the support plate 9, respectively.

Thus, if the corotron shield 1 or the corotron wire 2 of the corona discharger becomes contaminated with toner or the like, a cleaning pad 5 is inserted into the corotron shield 1.

Since the cleaning pad 5 is larger than the width of the corotron shield 1 before being inserted, it will press against the corotron shield 1 when inserted. However, during insertion, the cleaning pad 5 is designed so that it does not touch or only lightly contacts the corotron wire 2, so the corotron wire 2 is not cut by pushing it.

Cleaning is basically divided into two parts.

First, during cleaning, the cleaning pad 5 is inserted into the corotron shield 1 as shown in FIG. is cleaned. The cleaning pad 5 is suitably made of wool-based felt or urethane foam.

Next, by applying a force to the support plate 9 from above as shown by the arrow in FIG. inward and use both cleaning pads 5 to remove the Corotron wire 2.
By sandwiching the corotron wire 2 and moving it along the longitudinal direction in this state, cleaning of the central portion of the corotron wire 2 and the corotron shield 1, that is, point C, is completed.

After cleaning, pull out the cleaning pad 5 from the Corotron shield 1.

6 is another embodiment of the present invention, in which a tooth-shaped pressing force setting guide member 11 is provided on the slope 13 of the leading member 10, and one part 9a of the support plate 9 is provided with a tooth-shaped pressing force setting guide member 11. It differs from the above embodiment in that a pressing force regulating member 12 is provided that protrudes from the other piece 9b, and when a force is applied to the support plate 9 in the direction of the arrow, the pressing force setting guide member 11 is set to the corotron.
The cleaning pad 5 engages with the upper edge of the side wall of the shield 1 to keep the pressure on the corotron wire 2 constant, and the corotron wire 2 can be cleaned along the corotron shield 1 with this constant pressure applied. When the pressing force is large, the pressing force regulating member 12 comes into contact with the other part 9b of the support plate 9 to regulate the pressing force, so that the corotron wire does not break.

Since the present invention has been described in detail above, by simply pressing the cleaning elastic member G against the corotron shield 1, the cleaning elastic member G can be pressed against the corotron wire 2, and the corotron wire 2 can be cut. The cleaning elastic member G can be attached to and detached from the corotron shield 1 without having to do so. In addition, there is no uneven wiping (unwiped residue), making it possible to shorten the cleaning time, and furthermore, the cost is low, and not only is it easy to store, but even an amateur can clean the corona discharger.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional cleaning device for a corona discharger, FIG. 2 is an explanatory diagram of the configuration of a conventional cleaning device for a corona discharger, FIG. 3 is an explanatory diagram of the configuration of a cleaning device for a corona discharger, and FIG. 5 is an explanatory diagram of the structure of one embodiment of the present invention, FIG. 5 is an explanatory diagram of the same operation, and FIG. 6 is an explanatory diagram of the structure of another embodiment of the present invention. 1 is Corotron Shield, 2 is Corotron Shield.
10 is an introduction member, G is an elastic member for cleaning, and F is a support member.

Claims (1)

[Claims] 1 At each lower end of both legs of the inverted U-shaped support member 9, a cleaning elastic member G having a height at least equal to the depth of the corotron shield 1 is installed, with the outermost distance thereof being at least the inner wall of the corotron shield 1. When the cleaning device is inserted to the bottom of the corotron shield 1, the width of the corotron shield 1 is
A slope 13 is provided on the outside of both legs of the inverted U-shaped support member 9 at a position facing the upper end of each side wall of the inverted U-shaped support member 9 to convert a pressing force against the inverted U-shaped support member 9 into a proximity force of both legs of the inverted U-shaped support member 9. A cleaning device for a corona discharger characterized by comprising an introduction member 10 having the following.