JPH08168450A - Wiping head - Google Patents

Abstract

PURPOSE: To prevent contaminant from remaining on the outside of a preceding squeegee and to improve cleanly wiping efficiency by arranging the preceding squeegee of a cleanly wiping head while it is held by a specified gap to the face to be wiped. CONSTITUTION: A cleaning liq. is fed into a cleaning room 6 surrounded by a preceding squeegee 4 and a succeeding squeegee 5 both with a skirt-like shape provided before and behind a cleanly wiping head 1 in parallel through a cleaning liq. pipe 7, and a cleaning liq. spray 7B is applied on a dirty glass face Y as a face to be cleanly wiped from a cleaning liq. nozzle 7A. The cleaning liq. having been stood between brushes 8 or the succeeding squeegee 5 and the preceding squeegee 4 is sucked and discharged through a sucking and discharging pipe 11 the lower end part of which is a trumpet-like discharging pipe 11A. In this case, the preceding squeegee 4 is arranged so as to keep a gap of 0.1-5.0mm to the face to be cleanly wiped C. It is pref. therefore that the specified gap is kept by a supporting arm 3 with an air cylinder for pressing and supporting a frame 2 and a stopper being brought into contact with the surface C of an article to be cleaned through a roller made of a hard elastic body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping head, and more particularly to a wiping head having a better wiping effect.

[0002]

2. Description of the Related Art Conventionally, various wiping heads or wiping devices have been devised for cleaning window glass and other smooth inner and outer surfaces of buildings such as buildings, vehicles such as cars and trains, or windows such as airplanes. Proposed.

This is because the cleaning work of the outer surfaces such as the window glass and the wall surface of a high-rise building is extremely dangerous work manually and it is very difficult to maintain the cleaning finish level.

For example, as in JP-A-55-49738,
Cleaning water is injected and supplied between a pair of squeegees of the preceding squeegee and the following squeegee, and the main part is a cleaning head that sucks and discharges contaminated cleaning water. An automatic cleaning device has been proposed that prevents problems and improves the cleaning effect.

However, in this cleaning head, contaminants accumulate on the outside of the preceding squeegee (see FIG. 3), and the cleaning water supplied between the preceding and following squeegees cannot be effectively wiped off, so that it is inevitable to be cleaned. There is a problem that the contaminant 20 remains on the surface.

Further, in the conventional example, when sucking and discharging the contaminated cleaning water, the leading and trailing squeegees come into close contact with the surface to be wiped,
There is also a problem that the driving force required for moving the wiping head is significantly increased.

As a result of intensive studies, the present inventors have found that it is effective to provide a proper gap between the preceding squeegee and the surface to be wiped in order to solve these problems. Has been completed.

[0008]

OBJECTS OF THE INVENTION It is an object of the present invention to prevent contaminants from accumulating on the outside of the preceding squeegee and improve the wiping efficiency.

Another object of the present invention is to prevent unnecessary adhesion of both squeegees to the surface to be cleaned, and to prevent an increase in driving force required for moving the cleaning head.

[0010]

According to the present invention, in a wiping head having at least one pair of squeegees which are spaced apart substantially in parallel, the preceding squeegee is 0.1 to the surface to be wiped.
A wiping head (claim 1), which is disposed with a gap of 5.0 mm, a support arm with a pneumatic cylinder for pressing and supporting the frame, and a cleaning roller through a hard elastic roller. The wiping head (claim 2) according to claim 1 provided with a stopper that comes into contact with the surface of the object, and the cleaning material according to any one of claims 1 to 2 wherein the hard elastic body is hard rubber or elastomer. A wiping head (claim 3) is provided.

The present invention will be described in detail below with reference to examples.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a wiping head according to an embodiment of the present invention (a sectional view taken along the line AA in FIG. 2).
FIG. 3 is a sectional view of a conventional example.

In FIGS. 1 and 2, 1 is a wiping head, 2 is a frame, 3 is a support arm, 4 is a squeegee in advance, 5 is a squeegee in a backward direction, 6 is a washing chamber, 7 is a washing liquid pipe, and 7A is a washing liquid. Nozzle, 7B for cleaning liquid spray, 7C for contaminated cleaning liquid, 8
Is a brush, 11 is a suction / exhaust pipe, 15 is glass, 16 is a sash, 20 is a contaminant, G is a gap between the preceding squeegee and glass (surface to be wiped), an arrow M is a moving direction of the wiping head, and an arrow S. Is a suction and discharge direction of the contaminated cleaning liquid, Y is a contaminated glass surface, and C is a clean glass surface.

Referring again to FIG. 1, in the embodiment of the present invention, the support arm 3 is a support arm with a pneumatic cylinder having a pneumatic cylinder at the upper part thereof, and is provided in parallel with the front and rear squeegees 4 in the form of a skirt and the trailing end. The cleaning liquid is supplied to the cleaning chamber 6 surrounded by the squeegee 5 through the cleaning liquid pipe 7, and the cleaning liquid spray 7B is sprayed from the cleaning liquid nozzle 7A onto the dirty glass surface Y to be cleaned. It has become. The cleaning liquid accumulated between the brush 8 or the trailing squeegee 5 and the preceding squeegee 4 is sucked and discharged by the suction discharge pipe 11 whose lower end is a trumpet-shaped discharge pipe 11A. In the present invention, it is important that a certain range of gap G is provided between the preceding squeegee 4 and the contaminated glass surface Y.

Here, G must be 0.1 to 5.0 mm. This number is obtained empirically.

G has no effect unless it reaches 0.1 mm,
This is because if the height is set to 5.0 mm, the cleaning liquid may be washed out of the cleaning chamber 6 or the contaminated cleaning liquid may be sucked by the suction / exhaust pipe 11 to cause so-called water absorption, which makes it difficult to discharge.

The trailing squeegee 5 itself is in contact with the glass surface for cleaning, just like the conventional example. The brush 8 may be a wide broom, but if the motor-driven conical small brushes are arranged in a large number of rows, the cleaning effect is further improved. In this case, it is advisable that the adjacent outer edges of the small conical brushes slightly overlap each other.

[0018]

By carrying out the present invention, all of the above objects can be achieved.

That is, contaminants are prevented from accumulating outside the preceding squeegee, and the cleaning effect is improved. Further, since both squeegees do not unnecessarily adhere to the surface to be wiped, a strong driving force required for moving the wiping head becomes unnecessary.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a wiping head that is an embodiment of the present invention (FIG. 2
AA sectional view).

FIG. 2 is a perspective view of the head.

FIG. 3 is a cross-sectional view of a conventional example.

[Explanation of symbols]

1 Cleaning head 2 Frame 3 Support arm 4 Leading squeegee 5 Backward squeegee 6 Washing room 7 Washing liquid pipe 7A Washing liquid nozzle 7B Washing liquid spray 7C Staining washing liquid 8 Brush 11 Suction discharge pipe 15 Glass 16 Sash 20 Contamination Gap between squeegee and glass (surface to be wiped) Arrow M Direction of wiping head arrow S Direction of suction and discharge of contaminated cleaning liquid Y Contaminated glass surface C Clean glass surface

Claims (3)

[Claims] 1. A wiping head comprising at least one pair of squeegees spaced apart substantially in parallel, wherein the preceding squeegee is arranged with a gap of 0.1 to 5.0 mm with respect to the surface to be wiped. A cleaning head characterized by being installed. 2. The wiping head according to claim 1, further comprising: a support arm with a pneumatic cylinder that presses and supports the frame, and a stopper that comes into contact with the surface of the material to be washed via a hard elastic roller. 3. The wiping head according to claim 1, wherein the hard elastic body is hard rubber or elastomer.