JPH08131922A - Automatic drawing device on eminence - Google Patents

Abstract

PURPOSE: To securely and easily draw an image on eminence of an outer wall of a building or the surface of an advertising tower without using footings by providing a drawing nozzle moving freely following the wall surface on the inner side of a machine frame and hanging the machine frame with the lower side of the drawing surface side inclined to the drawing surface side. CONSTITUTION: An automatic drawing device 1 on eminence comprises an automatic drawing mechanism 2, a rolling prevention device 18 with its end protruding to the drawing surface side, a machine frame 2 with a hanging wire rope 17 provided on its upper section, a drawing nozzle 46, a controller 9 generating a three-dimensional drive signal and an ink jet control signal and the like. When the hanging wire rope 17 is lifted up, the lower section of machine frame 12 is inclined a little in the state of protruding to the side of a surface to be drawn. A boom of a crane is pushed out to the wall surface side in the state of hanging and facing the protruding section to the wall surface by the arrangement, and the movement range surface of the end of the drawing nozzle 46 is positioned in parallel to the surface to be drawn to retain the optimum state toward the surface to be drawn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically drawing high places for remotely drawing an image on the outer wall of a building or the surface of an advertising tower.

[0002]

2. Description of the Related Art As a conventional automatic drawing mechanism, Japanese Patent Laid-Open No.
No. 110159, a control means mechanism for generating a three-dimensional drive signal and an ink ejection control signal for a spray gun head corresponding to the position and color of each pixel of an original image, a wall surface, etc. Supporting means for movably supporting the spray gun head three-dimensionally with respect to the surface to be printed, and the spray gun head driven by the three-dimensional drive signal, and in response to the control signal, The present invention is characterized in that it is configured by an automatic drawing mechanism or the like provided with a driving unit that blows an inkjet onto the target surface.

This conventional automatic drawing mechanism is installed on a flat ground for use. However, it is difficult to draw the drawing by lifting it up at a high position on a wall because rolling due to wind occurs. .

However, Japanese Patent Publication No. 64-47473 discloses a coating method using a spray coating machine assembled on a guide rail suspended from above the wall surface via a rope as shown in FIG. As a measure against roll over against wind in that method, a fan is provided, and the fan is operated to press the spray coating machine against the guide rail, and the guide rail is brought into contact with the wall surface by the pressing force, and It is fixed in position. When the conventional automatic drawing mechanism is pressed and fixed to the wall surface by the thrust of the fan operation, the drawing device vibrates due to the rotation of the fan, and the vibration hinders the delicate operation of the drawing nozzle and the delicate flow of ink, It may cause a failure.

Conventionally, when an image is drawn on the outer wall surface of a building or a high place of an advertising tower, a scaffold is previously formed along the building or the advertising tower, and the scaffold is used as a work floor to draw the image on the wall surface. Or, the drawing image was created by sticking the drawing drawing created on the ground surface to the wall surface.

However, when such a scaffold is installed, it must be removed after that, which requires a lot of labor and a construction period. In addition, there is a problem that drawing by human requires a lot of labor and takes a lot of work time, and in the case of a huge image, it is difficult to obtain a delicate image.
Further, there is also a problem in that installation and disassembly of scaffolds and scaffold-like image drawing work require special attention from the viewpoint of safety. Under the circumstances described above, it has been earnestly desired to suspend the conventional automatic drawing mechanism at a high place for drawing.

According to the present invention, the force required to prevent rolling due to the wind is not so great in wind speed conditions (generally 10 m / sec or less) where crane work can be safely performed outdoors. Even without using the suction method that uses the suction force of the vacuum pump that has been used in the past, to adsorb on the wall surface, the corrugated sheet and the folding plate can be folded by a simple engaging method that is suitable for the irregularities and flatness of the wall surface. Plate, panel,
This was done by finding that it is possible to prevent rolling of concrete and the like.

[0008]

SUMMARY OF THE INVENTION As described above, the present invention provides automatic drawing capable of reliably and easily drawing an image on a high place on the outer wall surface of a building or the surface of an advertising tower without using a scaffold. The purpose is to provide a device.

[0009]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a roll-prevention device that comes into contact with a wall surface on the drawing surface side of the machine frame, in which a drawing nozzle is provided movably along the wall surface inside the machine frame. Further, there is provided an automatic drawing apparatus for high places, characterized in that the machine frame is suspended with its lower side on the drawing surface side inclined to the drawing surface side.

Further, in the above-described automatic drawing apparatus for high places, a plurality of manifolds are provided in series on the outer surface of the air reservoir tube, and a rubber bag is provided at the tip of each of the manifolds so that the tip of each rubber bag is in a straight line. A roll-preventing device which is closely fixed so as to be positioned is provided with the tip of the rubber bag protruding on the drawing surface side.

Further, the above-described automatic drawing apparatus for high places is provided with a plurality of pins which are inserted in series in the block, and each of the pins is provided with a retainer at one end and an abutting portion at the other end. A roll-prevention device is provided on the drawing surface side, which is provided with a flange on the abutting portion side and a compression spring is provided between the collar and the block so that the abutting portion always projects from the block. It is provided with one end protruding.

Further, the above-described automatic drawing device for high places has a roll-prevention device in which one end of a plurality of rod-shaped rubbers connected in series is positioned in a substantially straight line and the other end is planted in a block.
One end of the rubber is provided so as to project on the drawing surface side.

Furthermore, in the above-described automatic drawing apparatus for high places, the branch side of the T-shaped tube communicating with the bowl-shaped body is provided on the bottom of the bowl-shaped body whose release side is made of an elastic material such as sponge or soft rubber. The rolling prevention device is provided by projecting the tip of the elastic body on the drawing surface side.

[0014]

In the height automatic drawing apparatus of the present invention, since the machine frame incorporating the drawing mechanism is slanted and suspended, and the roll prevention device is in contact with the drawing target surface side, the drawing target surface is On the other hand, they come into contact with each other in the most suitable state, and exert an adhesion force sufficient to withstand the influence of wind. Moreover, all of the devices described in claims 2 to 5 exemplified as the roll prevention device are highly practicable and are composed of a corrugated plate, a folded plate, a panel, a tile, etc. having a concave portion or a convex portion. The present invention can be easily applied to the formed wall surface. Moreover, in some cases, it is possible to sufficiently exert the roll-swing preventing function even on the flat wall.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. FIG. 1 is a diagram of drawing by using the automatic drawing apparatus 1 for high places of the present invention. The automatic drawing apparatus 1 for high places is such that the tip of the drawing nozzle 46 faces the wall surface 7 and the mobile crane 4 It is hung from the tip of the boom 5 by the wire rope 3 and is positioned in front of the drawing target surface at the high position of the wall surface 7.

As shown in FIG. 2, the automatic drawing apparatus 1 of the present invention has a conventional automatic drawing mechanism 2 installed on a flat ground and used on the drawing surface side, and the tip of the roll prevention device 18 on the drawing 6 surface side. A machine frame 12 which is made to project to the upper part and a suspension wire rope 17 is provided on the upper part, a monitor mechanism 10 for monitoring and investigating the drawing 6.
A personal computer 8 that stores the original of the drawing 6, a controller 9 that generates a three-dimensional drive signal of the drawing nozzle 46 and an ink ejection control signal corresponding to the position and color of each pixel of the drawing 6 image,
A compressor 11 for sending compressed air necessary for driving the automatic drawing mechanism 2 and the roll prevention device 18, an air hose 19 for sending compressed air, and a transmission cable 20 for sending a control signal from the controller 9 to the automatic drawing mechanism 2. It is composed of

The automatic drawing mechanism 2 includes a pair of support columns 13 facing each other in parallel with the target surface of the drawing 6, a saddle 14 that moves up and down along the support columns 13 by a rack and pinion mechanism 16, and the saddle 14. It is composed of a pen unit 15 and the like that moves left and right by a similar rack and pinion mechanism.
The pen unit 15 allows the personal computer 8 to
The drawing nozzle 46 mechanism, the ink ejection mechanism, and a control mechanism for these, which are driven in correspondence with the position and color of each pixel of the original image stored in FIG.

In the automatic drawing apparatus 1 for high places of the present invention, when the hanging wire rope 17 is simply lifted in the air, the lower part of the hanging wire rope 17 is slightly inclined with the lower part thereof protruding toward the target surface side of the drawing 6, in relation to the position of the center of gravity. Since it is connected to the automatic drawing apparatus 1 at a high place, the drawing 5 of the wall surface 7 is performed by pushing the boom 5 toward the wall surface 7 with the abutting portion thereof being hung on the wall surface 7.
The drawing 6 is pressed against the target surface while the movement range surface of the tip of the drawing nozzle 46 is positioned parallel to the target surface.

The roll prevention device 18 is provided on the drawing surface side of the machine frame.
It is desirable to fix it in more than one place. Therefore, after abutting the automatic drawing device 1 at a high position in parallel with the wall surface 7 at the high position,
In combination with the rolling resistance generated by the pressing force described above, the rolling prevention device 18 provided on the machine frame is operating, so that it does not sway even when it receives a lateral wind. As a result, the wall surface 7 can be operated according to the operation procedure by the automatic drawing mechanism 2 on a flat surface.
It is possible to draw in the same way at the high position of.

Next, FIG. 3, FIG. 4, FIG. 5, FIG. 6 and FIG.
Are various modes of the roll prevention device 18 applied when the drawing 6 target surface of the wall surface 7 is formed by the large corrugated plate 21, and the roll prevention device so that the automatic drawing device 1 at a high place does not shake due to wind. It is a figure which shows the situation in which 18 is operating.

In the roll prevention device 18a shown in FIG. 3, a plurality of manifolds 48 are provided in series on the outside of the air reservoir pipe 22, and a rubber bag 24 is provided at the tip of each of the manifolds 48. The rubber bag 24 is tightly fixed by pressure so that the tip 52 of the rubber bag 24 is positioned in a substantially straight line. Reference numeral 23 is an air supply pipe.

FIG. 4 is a sectional view showing a state in which the roll prevention device 18a of FIG. 3 is engaged with the concave portion of the large corrugated plate 21 on the wall surface 7 formed of the large corrugated plate 21. As shown in the figure, the roll-prevention device 18a is configured such that the tip 52 of the rubber bag 24 is located outside the wall surface 7 even when a force is applied along the wall surface 7 to oscillate the automatic drawing apparatus 1 at a high place. Since it deforms according to the shape and is caught in the concave portion 36 of the wall surface 7, the automatic drawing apparatus 1 at a high position does not shake.

The roll prevention device 18a is provided with a large corrugated plate 21 shown in the figure.
Not limited to, a letterpress, panel having a concave portion or a convex portion,
The same can be applied to the wall surface 7 formed of tiles or the like. The air pressure is such that the tip of the rubber bag 24 can be deformed following the surface shape of the wall surface 7. Further, since the roll prevention device 18a needs the number of rubber bags 24 that can withstand the lateral wind force, it is preferable to fix two or more rubber bags 24 on the drawing 6 target surface side of the machine frame 12.

Next, the roll prevention device 18b shown in FIG.
A plurality of pins 25 that are inserted in series with the block 30 are provided. Each of the pins 25 has a retaining member 29 at one end and an abutment portion 31 at the other end, and a flange 26 on the abutment portion 31 side. Further, the compression spring 27 is interposed between the collar 26 and the block 30 so that the abutting portion 31 is always projected from the block 30.

The roll-preventing device 18b has the pin 25 as shown in FIG. 5 even if the wind blows along the wall surface 7 and the force to move the automatic drawing apparatus 1 at high places acts. Since it is pressed according to the outer surface shape and is caught in the concave portion 36 of the wall surface 7, the automatic drawing apparatus 1 at a high place can be prevented from shaking.

Further, the roll prevention device 18b is not limited to the large corrugated plate 21 shown in the figure, but a folded plate having a concave portion or a convex portion,
The same can be applied to the wall surface 7 composed of panels, tiles, and the like. In addition, it is preferable that two or more roll preventing devices 18b are fixed to the drawing frame 6 target surface side of the machine frame 12.

Further, a roll prevention device 18c shown in FIG.
Is one in which one end of a large number of rod-shaped rubbers 33 arranged in series is aligned in a substantially planar shape, and the other end 35 is planted in a block 32. In the roll prevention device 18c, even if the wind blows along the wall surface 7 and the force for shaking the high-place automatic drawing device 1 acts, the position of the tip end 34 of the rod-shaped rubber 33 is set to the position shown in FIG.
As shown in FIG. 5, the outer surface of the wall surface 7 is pressed, and the tip 34 of the rod-shaped rubber 33 is caught in the recessed portion 36 of the wall surface 7, so that the automatic drawing apparatus 1 at high altitude can be prevented from shaking. .

The sway preventing device 18c is not limited to the large corrugated plate 21 and may be similarly applied to the wall surface 7 constituted by a folded plate, a panel, a tile having a concave portion or a convex portion. it can. In addition, it is preferable that two or more roll preventing devices 18c are fixed to the drawing frame 6 target surface side of the machine frame 12.

FIG. 7 shows a roll prevention device 18d according to another embodiment.
The branch pipe 42 of the T-shaped pipe 41 is planted in the bottom of the bowl-shaped body 37 formed of the elastic body 38 such as sponge or soft rubber.

The roll-prevention device 18d is made of an elastic material such as sponge or soft rubber 38 even if a force is applied to the automatic drawing device 1 at a high position due to wind blowing along the wall surface 7.
As shown in FIG. 7, the front end portion 53 is deformed following the outer surface shape of the wall surface 7 and fits into the concave portion 36 of the wall surface 7, so that the automatic drawing apparatus 1 at high altitude can be prevented from shaking. .

Further, by compressing the compressed air 43 from one end 54 of the straight pipe of the T-shaped pipe 41 and discharging it from the other end 55, a part of the air 44 in the bowl-shaped body 37 is passed through the branch pipe 42. Alternatively, the bowl 37 may be discharged from the other end 55, and the bowl 37 may be pressed against the wall surface 7 by the pressure difference generated inside and outside the bowl 37.

The sway preventing device 18d has the shape of the tip of the elastic body 38 matched with the surface shape of the wall surface 7,
With respect to large corrugated plates and folded plates, the resistance to the side wind force is also taken into consideration by taking into account the resistance due to the suction force in addition to the engagement with the recesses.

Also, a roll prevention device 18d of the type shown in FIG.
Even when applied to a flat wall such as a panel wall or a concrete wall that is difficult to engage with, it can withstand lateral wind force by the suction force. Therefore, the roll prevention device 18
With d, it is possible to more strongly prevent the rolling of the automatic drawing apparatus 1 at a high position due to the wind. In addition, the roll prevention device 18d
It is preferable that two or more are fixed to the drawing frame 6 target surface side of the machine frame 12.

Since the automatic drawing apparatus 1 at a high position is hung from the wall surface 7 with its upper front portion inclined from the lower front surface,
Even if there is a protrusion such as an eaves tip at the upper part of the drawing 6, when the length of the protrusion ensures a necessary distance between the wall and the drawing nozzle 46, the wire rope 3 extended from the tip of the boom 5 interferes. It is possible to draw if it is within the range.

In addition, even if a utility pole or a plant stands in front of the target surface of the drawing 6, the distance between the wall surface 7 and the utility pole or plant is equal to or greater than the depth range of the automatic height drawing apparatus 1. If so, drawing can be performed because it can be lowered from above the range.

In addition, a moving wall surface diagnostic working device provided with a suction cup is disclosed in Japanese Patent Laid-Open No. 4-258741 in order to perform a diagnostic work in a stable state even when receiving a wind pressure. As shown in FIG. 9, the suction cup is in contact with the wall surface, one end of the suction hose is connected to the air supply / exhaust port attached to the suction cup, and the other end of the suction hose is connected to the vacuum pump.

The mobile type wall surface diagnostic work device is airtight when the wall surface is flat, and the suction cup sucks the inside of the suction cup to the wall surface by exhausting it with a vacuum pump. However, since the surface of the wall deteriorates over time and gradually peels off easily, if the suction cup is sucked onto the wall surface with a vacuum pump, the peeling force will act strongly on the wall surface of the suction part and damage will occur. May occur.

The sway preventing device 18 in the present invention does not make the inside of the bowl 37 a vacuum, but causes a depressurization phenomenon caused by the flow of the air 44 in the bowl 37, and the bowl 37 generated. The bowl-shaped body 37 is pressed against the wall surface by the pressure difference between the inside and the outside, and the lateral displacement resistance of the pressing surface resists wind pressure and prevents the horizontal drawing of the automatic drawing apparatus at high places of the present invention.

In the suction cup type, the peeling force is constantly exerted by adhering to the wall, whereas the roll prevention device 1 according to the present invention is used.
8d, because the pressure is reduced by the ejector method, the suction force of the bowl-shaped body 37 within the reduced pressure range is not so strong as in the vacuum type, and the lateral displacement force acts on the wall only when the wind blows, and the lateral displacement force acts on the wall surface 7. It is a force in the rubbing direction, and is characterized in that it is difficult to damage the wall surface 7.

Further, the roll prevention device 18d according to the present invention.
Since the tip of the bowl-shaped body 37 is made of sponge, soft rubber, or the like, even if the wall surface 7 is not a flat surface, it deforms following the outer surface shape and seals the inside and outside of the bowl-shaped body 37. Can also be applied to.

Further, the target surface of the wall surface 7 for drawing 6 is the concave portion 36.
When there is no flatness, the automatic drawing apparatus 1 at a high place is originally pressed against the wall surface 7 as described above, and the pressing portion is the tip of the abutting portion 56 of the roll prevention device 18d.
A large pressing force is generated under the suspended load due to the pressing force.

Due to the characteristics of the structure of the automatic drawing apparatus 1 at a high place, the side area is small because the thickness is smaller than the drawing surface area. Therefore, the rolling force due to wind that can eject ink is
Not the big one. Therefore, FIG. 4, FIG. 5, FIG. 6 and FIG.
Rolling can be sufficiently prevented even by the frictional force at the tip of the pressing portion at.

Apparatuses for coating a wall at a high position directly on the tip of a boom by means of a coating machine are disclosed in Japanese Examined Patent Publication No. 3-46862 and Japanese Patent Laid-Open No. 61-61662. As shown in FIGS. 10 and 11, there are usually utility poles / electric wires, buildings, plants, flower beds, etc. in front of the drawing target surface, and these are obstacles and cannot be approached immediately before the drawing target position.

Therefore, such a method of directly attaching to the tip of the boom 5 and using it is not practical. On the other hand, the automatic drawing apparatus 1 of the present invention does not attach directly to the tip of the boom 5 but first hangs the wire rope 3 from the tip of the boom 5 and hangs it down for use. -It can be hung just before the drawing target position over the electric wires, buildings, plants and flower beds. Further, even if the wind blows, the roll is prevented from rolling due to the action of the roll preventing device 18, so that the delicate drawing 6 can be applied to the high position of the wall.

[0045]

EFFECTS OF THE INVENTION Since the automatic drawing apparatus for high places of the present invention is configured as described above, an image can be inexpensively, quickly, and delicately displayed on a high place on the outer wall of a building or the surface of an advertising tower without constructing a scaffold. It became possible to draw. Therefore, improvement of the scenery of the townscape can be expected.

[Brief description of drawings]

FIG. 1 is a schematic view of drawing using an automatic drawing apparatus for high places of the present invention.

FIG. 2 is a perspective view showing an embodiment of an automatic drawing apparatus for high places of the present invention.

FIG. 3 is a perspective view showing one aspect of a roll prevention device used in the present invention.

FIG. 4 is a cross-sectional view showing how the device of FIG. 3 is used.

FIG. 5 is a perspective view showing another aspect and usage of the roll prevention device used in the present invention.

FIG. 6 is a perspective view showing another aspect and usage of the roll prevention device used in the present invention.

FIG. 7 is a perspective view showing still another aspect and usage of the roll prevention device used in the present invention.

FIG. 8 is a view of a conventional roll prevention device in a rope lowering type coating machine.

FIG. 9 is a view of a conventional roll prevention device in a rope lowering type coating machine.

FIG. 10 is a view of a conventional high place and a tank device in which a coating machine is directly attached to the tip of a boom.

FIG. 11 is a view of a conventional high place and a tank device in which a coating machine is directly attached to the tip of a boom.

[Explanation of symbols]

1 Automatic drawing device for high places 2 Automatic drawing mechanism 3 Wire rope 4 Crane vehicle 5 Boom 6 Drawing 7 Wall surface 8 PC 9 Controller 10 Monitor 11 Compressor 12 Machine frame 13 Strut 14 Saddle 15 Pen unit 16 Rack and pinion mechanism 17 Suspended wire rope 18 Rolling prevention device 19 Air hose 20 Transmission cable 21 Large wave plate 22 Air retention pipe 23 Pipe 24 Rubber bag 25 Pins 26 Tsuba 27 Compression spring 28 Hole 29 Retainer 30,32 Block 31,56 Abutment part 33 Rod rubber 34 Rod rubber tip 35 Rod-shaped rubber other end 36 Recessed portion 37 Bowl-shaped body 38 Elastic body such as sponge or soft rubber 41 T-shaped tube 42 Branch pipe 43 Compressed air 44 Air 45 Discharged air 46 Drawing nozzle 48 Manifold

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Kitamura 1-1 Tobahata-cho, Tobata-ku, Kitakyushu City, Fukuoka Prefecture Inside Nippon Steel Co., Ltd. Yawata Works (72) Naoto Oyama Hachiman-ku, Kitakyushu City, Fukuoka Prefecture 9-27 Kawabuchicho Taihei Kogyo Co., Ltd. Yawata Branch (72) Inventor Yasushi Omori 9-27 Kawabuchicho Yahatahigashi, Kitakyushu, Fukuoka Prefecture Taihei Kogyo Co., Ltd. Yawata Branch

Claims (5)

[Claims] 1. A roll prevention device that comes into contact with a wall surface is provided on the drawing surface side of the machine frame, which is provided inside the machine frame so as to be movable along the wall surface, and the machine frame is provided on the drawing surface side. An automatic drawing device for high places, characterized in that the lower side is inclined to the drawing surface side and suspended. 2. A plurality of manifolds are provided in series on the outer surface of the air reservoir pipe, and rubber bags are closely attached and fixed to the tips of the respective manifolds so that the tips of the rubber bags are aligned with each other. 2. The automatic drawing apparatus for high places according to claim 1, wherein the roll prevention device is provided with the tip of the rubber bag protruding on the drawing surface side. 3. A plurality of pins that are inserted in series with the block are provided, and each of the pins has a retaining member at one end and an abutment portion at the other end, and a brim at the abutment portion side. , By providing a compression spring between the collar and the block,
2. The automatic drawing apparatus for high places according to claim 1, further comprising a roll-swing preventing device in which the abutting portion is always projected from the block, with one end of the pin protruding on the drawing surface side. 4. A roll-prevention device having one end of a plurality of rod-shaped rubbers in series positioned substantially in a straight line and the other end thereof being planted in a block, wherein one end of the rubber is attached to the drawing surface side. The automatic drawing apparatus for high places according to claim 1, which is provided so as to project. 5. The bottom of a bowl-shaped body whose release side is made of an elastic material such as sponge or soft rubber is connected to the bottom of the bowl-shaped body.
2. The automatic drawing apparatus for high places according to claim 1, further comprising a roll prevention device formed by arranging a branch pipe of a character tube with a tip of the elastic body protruding from the drawing surface side.