JPH032679B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a large-sized structure used for cleaning the side wall surface of a large structure, particularly a metal wall surface having a C-shaped cross section, before painting. This is an automatic cleaning device for structures.

[Prior art] When painting a wall that reaches a high place and has a large area, such as the exterior wall of a factory building, conventionally, the old paint on the surface to be painted is removed and cleaned, and then a cleaning tool is installed on a trolley. A brush and paint spraying device, for example, an automatic painting device equipped with a nozzle, which cleans the surface to be painted with a cleaning brush, removes old paint, and then automatically applies new paint. There is.

As a conventional automatic painting device, there is a
As stated in the −1240 publication, a hoist is mounted on a trolley that is movable on the roof of a building.
An automatic painting machine equipped with a cleaning brush and a paint spraying device is raised and lowered by a hoist on the roof, and moved left and right by a trolley to perform painting work on walls, or along the walls of buildings. A leader is erected using a crane, etc., and the gondola is placed along the leader so that it can be raised and lowered.The gondola is equipped with an automatic paint machine equipped with a cleaning brush and a paint spraying device, and a hoisting machine is installed at the bottom end of the leader. There are also configurations in which the wire is hung from the top of the leader to the gondola.

[Problems to be solved by the invention] Are any of the above conventional methods suitable for work in high places, and are they capable of achieving easier quality control and higher efficiency in painting work than manual methods? I had a problem like this.

First, in the system described in JP-A No. 53-1240, the automatic coating device is simply suspended by a hoist installed on the roof, so there is no special device to guide the automatic coating device up and down. The automatic coating machine cannot be automatically shifted away from the building wall because its center of gravity is always pressed against the building's outer wall in relation to the vertical plane. Furthermore, since the trolley carrying the hoisting machine is placed on the roof of the building and moved, it cannot be carried out unless the building has a structure where the trolley can be mounted on the top of the wall. Cannot be used on building walls.
In addition, the leader is indispensable in order to create a reaction force by pressing the cleaning brush of an automatic painting machine against a vertical wall surface by placing a gondola along the leader.

In addition, the conventional systems described above are all automatic painting machines in which the cleaning brush, the mechanism that drives the brush, the paint spraying device, and its operating mechanism are mounted on a trolley or gondola, so they are quite large. In addition to being heavy, the dead space on the trolley was also large because equipment for spraying paint, which is not used during cleaning work, was also mounted on it.

Therefore, the present invention aims to reduce the weight and dead space by separating the painting from the painting, and also reduces the pressing force against the wall surface during work without using supports such as leaders on the wall surface of a building with a sloped roof. The purpose is to obtain a reaction force, and also to make it possible to efficiently clean a wall surface that is bent on a plurality of different surfaces to form unevenness and has a C-shaped groove in cross section.

[Means for Solving the Problems] The present invention supports a carrier carriage via a wire rope by a winch installed on the top bucket of an aerial work vehicle, and magnetic caterpillars are attached to both sides of the carrier carrier. At the same time, two sets of cleaning brushes, which are attached so that the brush parts are oriented at right angles according to the shape of the wall surface, are rotatably installed in upper and lower positions, and a motor for rotating the cleaning brushes is mounted, and furthermore, on the cleaning carriage, It is equipped with a device for releasing the pressing force from the magnetic caterpillar, and is configured to be able to be remotely controlled by connecting cables and hoses to the above-mentioned carrier from the ground.

[Function] When the Keren cartridge equipped with a magnetic caterpillar is positioned by being suspended from a winch mounted on a bucket on an aerial work vehicle, the magnetic caterpillar blows the entire carriage onto the wall surface. In this state, move the carriage up and down while rotating the cleaning brush. As a result, the cleaning carriage is pressed against the wall surface with a constant pressing force, and since the brush portion matches the shape of the wall surface, the cleaning work can be performed efficiently. When shifting the working position laterally, release the pressing force of the magnetic caterpillar on the carriage,
Shift the vehicle to the side when working at an elevated location.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

The drawing shows one embodiment of the present invention, in which a winch 3 is mounted on a bucket 2 provided on the top of an aerial vehicle 1, and a keren carriage 5 is suspended from the winch 3 via a wire rope 4 so as to be able to rise and fall freely. Support.

As shown in FIGS. 2 to 4, the Keren carriage 5 is supported by wire ropes 4 from the winch 3 hanging on sheaves 6 and 7 attached to the upper surface, and by horizontally extending tensions on both left and right sides. A caterpillar frame 11 is attached to the protruding parts 8 and 9 so as to protrude toward the wall surface 10, which is the surface to be cleaned, and sprockets 12 and 13 are attached to both upper and lower ends of the caterpillar frames 11.
The magnetic caterpillars 14 2 and 13 are installed symmetrically, the magnetic caterpillars 14 are attached to a metal wall surface, and the wire rope 4 is wound up and down by the winch 3, so that the carriage can be attached to the wall surface 1.
0. A hood 15 is provided over almost the entire surface of the carrier 5.
are attached, cleaning brushes 16 are arranged horizontally in parallel at both upper and lower positions in the hood 15, and both ends of the shaft 17 of each cleaning brush 16 are rotatably supported by the carriage 5. A chain sprocket 19 on the output shaft of the motor 18 installed approximately in the center of the carriage 5, and a chain sprocket 2 provided at one end of each of the cleaning brushes mentioned above.
An endless chain 22 is connected to the brushes 1 and 21 as shown in FIG.
6 to be able to rotate.

The cleaning brush 16 is mounted by attaching a mounting bracket 23 around the shaft 17 so that the tip of the brush is applied perpendicularly to each surface of the vertical wall surface 10 in the shape of a C deck as shown in FIG. A long leaf spring 24 whose tip is aligned with the groove 10a shape of the wall surface 10 and a convex surface 10b of the wall surface 10 are placed on the outside of the metal fitting 23.
Short leaf springs 25 whose tips match the shape are attached alternately in the longitudinal direction of the shaft, and each leaf spring 24, 2
A brush portion 26 consisting of a combination of a large number of strands and stranded wires is attached to the tip of the brush 5 in a direction perpendicular to the surface to be stained, so as to match the shape of the object to be stained.

A collection part 27 is opened in the center of the hood 15, and the collection part 27 and a blower 28 are connected by a flexible pipe 29, so that the blower 28 can suck up the peeled materials that come out during the cleaning operation. There is.

Reference numeral 30 denotes air cylinders installed at both left and right, upper and lower ends of the carriage 5, which are used to extend when the carriage 5 is separated from the wall surface 10 to release the pressing force caused by the attraction of the magnetic caterpillar 24. 31 and 32 are a cable and an air hose that are led from the carriage 5 to the ground via the bucket 2 of the aerial work vehicle 1, the cable 31 is for power supply to the motor 18, and the air hose 32 is for connecting to the blower 28 and the air hose. Something to connect to the cylinder 30 is prepared. 33 is a guide roller provided on the side of the magnetic caterpillar 14;
This serves as a guide when the caterpillar 14 moves within the groove 10a of the wall surface 10. 34 is a skirt.

Note that the above-mentioned cleaning device of the present invention may be remotely operated from the ground, and the aerial work vehicle 1 may be operated remotely from the ground.
An operation panel 35 may be installed on the bucket 2 to allow operation on the bucket.

When a wall surface 10 having a shape as shown in FIG. 4 is to be cleaned prior to painting, a cleaning carriage 5 according to the present invention, which is separate and independent from the painting apparatus, is used by hanging from the winch 3.

First, the entire structure is moved by the aerial work vehicle 1 so that the cleaning carriage 5 is positioned at a required position on the wall surface 10 of the building where cleaning work is to be performed, and the cleaning carriage 5 is set so as to be close to the wall surface at a predetermined work position. When starting work, hold the carrier carriage 5 in the uppermost position and move the caterpillar 14 into the groove 1 of the wall surface 10.
It is adsorbed along the line 0a and a pressing force is applied to the wall surface of the cleaning brush 16. Next, the cleaning brushes 16 at the upper and lower positions are rotated, and in this state, the winch 3 is gradually reeled back and the cleaning carriage 5 is lowered to perform the work. At this time, the cleaning brush 16 is used to clean the grooves 10a and the convex portions 1 of the wall surface 10.
The brush part is applied perpendicularly to each surface of 0b, and the brush part 26 itself is made of a mixture of bare wire and stranded wire, so it has a great cleaning effect and can efficiently clean the wall surface. can. During the work, the dust and paint on the painted area that are peeled off by the brush part 26 are blown away by the rotation of the cleaning brush 16, and are drawn from the inside of the hood 15 to the collection part 27 by the blower 28, where they are collected. , the air is exhausted.

When the keren carriage 5 descends along the wall surface from top to bottom, it is raised as it is and worked in the same manner from bottom to top.

During the above-mentioned work, since a constant pressing force is always applied by the magnetic caterpillar 14, the cleaning work by the cleaning brush 16 is performed effectively.

When the carrier cartridge 5 reaches the upper end of the wall surface 10, the air cylinder 30 is extended and brought into contact with the rod tip 10 of the cylinder 30, and by further extending the cylinder 30, the carrier cartridge 5 is separated from the wall surface 10. So,
The pressing force of the magnetic caterpillar 14 on the carriage 5 is released. Next, the entire aerial work vehicle 1 is shifted laterally and set at the next working position, the air cylinder 30 is shortened, the carriage 5 is attracted to the wall surface 10, and the same work as described above is performed.

When the cleaning work on the wall surface is completed as described above, the cleaning carriage 5 is cut off, the painting carriage is set, and the setup for setting cables, air hoses, winch ropes, paint mixing, etc. is changed, so that the painting work can be continued. It can be carried out.

Note that since the cleaning brush 5 has a wall surface C-deck shape, the mounting angle of the brush portion 26 is regulated to correspond to this, but even if the wall surface has other shapes, the brush portion 26 will be at right angles to the surface to be cleaned. Of course, it can be installed like this.

[Effects of the Invention] As described above, according to the automatic cleaning device of the present invention, the cleaning carrier, which is suspended via a wire rope from a winch installed on an aerial work vehicle, is equipped with a magnetic caterpillar, so that it can be attached to a wall surface. In order to obtain pressing force, the carriage has two
Cleaning brushes are attached to the parts, and a groove for releasing pressure against the wall surface is also attached to the carriage.It is separated from the painting and can only be used for cleaning, so it is not used for cleaning. Since there is no equipment for painting, the weight of the carriage itself can be reduced and dead space can be eliminated.Furthermore, the pressing force is obtained by a magnetic caterpillar system, so there is no need to use pressing wires, struts, etc. This eliminates the need for setup time for switching to a paint carriage, making setup changes highly efficient.Furthermore, the brushes are arranged according to the shape of the target surface, making cleaning work more efficient, and two sets of cleaning brushes are provided. Because of this, it has good stability.
It can produce excellent effects such as

[Brief explanation of the drawing]

FIG. 1 is an embodiment diagram of the present invention showing the overall outline;
FIG. 2 is a front view of the Keren cartridge, FIG. 3 is a side view, FIG. 4 is a cutaway plan view, and FIG. 5 is a side view showing the state in which the magnetic caterpillar is installed. 1 is an aerial work vehicle, 2 is a bucket, 3 is a winch, 4 is a wire rope, 5 is a keren carriage,
10 is a wall surface, 11 is a caterpillar frame, 14 is a magnetic caterpillar, 15 is a hood, 16 is a cleaning brush, 26 is a brush portion, 28 is a blower, and 30 is an air cylinder.

Claims (1)

[Claims] 1. A winch installed on the top bucket of the aerial work vehicle supports the carrier carriage via a wire rope, and magnetic caterpillars are attached to both sides of the carrier, and the brush part is set at right angles to match the shape of the wall surface. A device for rotatably mounting two sets of brushes for cleaning in vertical positions, mounting a motor for rotating the brushes for cleaning, and further releasing the pressing force from the magnetic caterpillar on the cleaning cartridge. An automatic cleaning device for large structures, characterized in that it is configured such that it can be remotely operated by connecting cables and hoses to the cleaning carrier from the ground.