Building painting methods

Abstract

This invention provides a building painting method that allows painting to be performed without the need for scaffolding. [Solution] A method for painting the exterior of a building, comprising a painting step of painting the exterior of the building using a painting device for applying paint, wherein the painting device comprises an applicator for applying paint, a paint tank for storing paint, and an extension pole whose length can be adjusted, wherein the applicator is attached to the tip of the extension pole, the extension pole is adjusted to a length corresponding to the exterior of the building to be painted, and the exterior of the building is painted with the applicator.

Description

Technical Field

[0001] The present invention relates to a method for painting a building.

Background Art

[0002] Generally, in painting work on the outer wall of a building, etc., a temporary scaffold is installed around the building for the work (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When installing a scaffold around a building, it is necessary to assemble many scaffold members to install the scaffold. Therefore, the construction period becomes long and the construction cost also becomes high.

[0005] The present invention provides a building painting method that is completely different from the conventional building painting method that uses a scaffold, does not require a scaffold as an essential component, and can perform painting.

Means for Solving the Problems

[0006] A building painting method according to one aspect of the present invention is a building painting method for painting the exterior of a building, and includes a painting step of painting the exterior of the building using a painting tool for applying paint, The painting tool has an applicator for applying paint, a paint tank for storing paint, and an extension pole whose length can be adjusted. The applicator is coupled to the tip of the extension pole, and the extension pole is adjusted to a length corresponding to the exterior of the building to be painted, and the exterior of the building is painted with the applicator.

[0007] In this way, by using extension poles, it is possible to paint the exterior of a building from the ground or a low position, without the need for scaffolding or gondolas.

[0008] Furthermore, this painting method is characterized in that the painting apparatus comprises the applicator, the paint tank, and a supply tube for supplying paint from the paint tank to the applicator. In this way, paint can be smoothly supplied from the paint tank to the applicator through the supply tube.

[0009] Furthermore, this painting method is characterized in that the applicator has a supply unit that uniformly disperses and supplies the paint, an applicator that receives the paint from the supply unit and applies the paint, and a coupling unit provided on the supply unit and coupled to the tip of the extension pole, and the paint is supplied from the supply unit to the applicator. In this way, the paint is supplied uniformly and dispersed to the applicator via the supply unit, so that the paint from the applicator is applied uniformly and evenly. This makes it easier to paint the exterior of a building smoothly and beautifully.

[0010] Furthermore, this painting method is characterized in that the supply unit comprises a supply port through which paint is supplied via the supply tube, and a discharge port that supplies paint to the coating unit. In this way, the paint is first supplied from the supply port to the supply unit, and then supplied from the discharge port to the coating unit, so that the paint is uniformly dispersed and applied evenly to the coating unit.

[0011] Furthermore, this painting method is characterized in that the supply unit has a flat plate portion having a discharge port and a protrusion projecting from the rear side of the discharge port, the protrusion having a supply chamber inside, the supply port being connected to the supply chamber, a horizontally elongated slit being formed in the flat plate portion, the slit communicating with the supply chamber and configured as the discharge port, and paint being supplied to the coating unit through the slit.

[0012] In this way, the paint is first supplied from the supply port to the supply chamber of the supply unit, and then supplied to the coating unit from the elongated discharge port (slit), so that the paint is uniformly dispersed and applied evenly to the coating unit.

[0013] Furthermore, this painting method is characterized in that multiple supply chambers are formed inside the protrusion, and multiple supply ports are provided, with each supply port connected to each supply chamber, and multiple slits are formed in the flat plate portion, with each slit positioned to correspond to each supply chamber.

[0014] In this configuration, multiple supply chambers are built into the protruding portion of the supply unit, and each of these supply chambers is connected to a paint supply port. Slits are formed in the flat plate portion, which serves as the discharge port, at positions corresponding to these supply chambers. This allows for smooth supply and distribution of paint in each chamber, promoting a uniform supply of paint to the coating area.

[0015] Furthermore, this painting method is characterized in that the coating section is provided around a shaft member configured parallel to the flat plate section, and the coating roller is configured as a cylindrical shape that can rotate around the shaft member. In this way, paint is supplied uniformly to the coating roller, and the exterior of the building can be painted by rolling the coating roller, making it less likely for unevenness to occur.

[0016] Furthermore, this painting method is characterized in that the paint tank has a pressure section for pumping the paint and a tank storage section for storing the paint. This allows for a smooth supply of paint from the paint tank to the application section located at a higher position.

[0017] Furthermore, this painting method is characterized in that the painting apparatus further includes a valve located in the middle of the supply tube, and the valve is a control valve that controls the flow rate of paint by a push or trigger operation by the operator. In this way, the flow rate of paint can be controlled by a simple operation by the operator, making it easy to supply the necessary amount of paint and avoiding the supply of excess paint.

[0018] Furthermore, this painting method is characterized in that the paint is either the undiluted paint solution with a viscosity of 1400 to 2000 mPa·s, or the paint to which 20% or less water has been added. Here, when 20% water is added, the viscosity of the paint becomes approximately 1100 to 1700 mPa·s, meaning that the viscosity of the paint used is 1100 to 2000 mPa·s.

[0019] By using a paint concentrate with this viscosity, or by adding 20% ​​or less water to make paint, smooth supply of paint from the paint tank to the application area becomes possible. Furthermore, if the viscosity of the paint is less than 1100 mPa·s, smudging and dripping may occur, resulting in poor coloring and difficulty in achieving a clean finish. If it exceeds 2000 mPa·s, there is a risk that the smooth supply of paint to the application area will be hindered. Preferably, the paint is either a paint concentrate with a viscosity of 1700 to 2000 mPa·s, or paint with 20% or less water added. In this case, the viscosity of the paint when 20% water is added will be approximately 1400 to 1700 mPa·s.

[0020] Furthermore, this painting method is characterized in that the paint is a mixture of a clear paint and a colored paint, and the clear paint has a lower viscosity than the colored paint. This expands the range of colors that can be painted and allows for a smooth supply of paint from the paint tank to the application area.

[0021] Furthermore, in this painting method, an amount of paint corresponding to the exterior area of ​​the building is prepared in advance with a dilution ratio appropriate to the target area (the exterior of the building) and stored in the paint tank. This reduces the amount of excess paint that is wasted.

[0022] Furthermore, this painting method is characterized by further comprising the steps of cleaning the exterior of the building using a cleaning device that sprays cleaning solution prior to the painting process, and rinsing it off with water after a certain period of time. In this way, cleaning the building before painting improves the adhesion of the paint and enhances the finish.

[0023] Also, this painting method is characterized in that the cleaning device includes a blower for blowing out a cleaning liquid, a cleaning extension pole whose length can be adjusted, a pressure unit for pumping the cleaning liquid, a cleaning liquid tank for storing the cleaning liquid, and a cleaning liquid supply tube for supplying the cleaning liquid from the tank to the blower. Here, as the blower, for example, in addition to the brush described later, a sprayer or atomizer of the cleaning liquid, a mop, etc. can be used, as long as it is a device capable of blowing out the cleaning liquid.

[0024] Also, this painting method is characterized in that the blower has a support part to which the cleaning liquid supply tube is connected at the rear side, a brush part in which hairs are entirely implanted on the front side of the support part, and a coupling part provided on the support part and coupled to the tip of the cleaning extension pole. The cleaning liquid is uniformly supplied from the cleaning liquid supply tube through the support part to the brush part.

[0025] Also, this painting method is characterized in that the support part includes a supply port for supplying the cleaning liquid from the cleaning liquid supply tube at the rear side, and a discharge port for discharging the cleaning liquid to the brush part at the front side.

Advantages of the Invention

[0026] {END]]The present invention can paint the exterior of a building at a high height without using scaffolding or gondolas.

Brief Description of the Drawings

[0027] [[ID=ll]] [Figure 1] It is a perspective view of a cleaning device used for the cleaning work of a building. [Figure 2] It is a view showing another example of the blower of the cleaning device. [Figure 3] It is an explanatory view of a paint supply device used for the building painting method according to the present invention. [Figure 4] It shows the supply part of the painter of the paint supply device, (a) is a front view, and (b) is a plan view.

Embodiments for Carrying Out the Invention

[0028] The present invention will be described below with reference to the drawings, but the present invention is not limited thereto. In this embodiment, an example of a building with two to three stories will be used for the description. The exterior of the building includes exterior walls (for example, any type of siding wall such as ceramic or metal, plaster walls, volcanic ash walls, diatomaceous earth walls, etc.), roofs, blocks, concrete retaining walls, concrete floors, wooden decks, etc.

[0029] (1. Washing process) First, prior to the painting process, a cleaning process is carried out to wash the exterior of the building. Note that, in addition to being performed prior to the painting process, if the exterior walls of the building are to be painted the same color as the existing walls, and the exterior walls are already a good color and painting is unnecessary at the end of the cleaning process, the process can be completed with just the cleaning work.

[0030] As shown in Figure 1, the exterior cleaning of the building is performed using a cleaning device 1 that sprays cleaning solution. After cleaning the exterior of the building, it is left for a certain period of time, then rinsed with water and dried to complete the process.

[0031] In this case, the cleaning solution contains a surfactant in addition to sodium hypochlorite to enhance the cleaning effect, and the sodium hypochlorite content of the cleaning solution is set to 1-3% to reduce costs.

[0032] Next, the cleaning device 1 used in the cleaning process will be described. As shown in Figure 1, the cleaning device 1 mainly consists of a blower 2 that sprays a cleaning solution containing sodium hypochlorite and an extension pole 3 whose length can be adjusted. In addition, the cleaning device 1 also includes a cleaning solution tank 4 for storing the cleaning solution and a supply tube 5 for supplying the cleaning solution from the cleaning solution tank 4 to the blower 2.

[0033] The cleaning work is carried out by attaching a blower 2 to the tip of an extension pole 3, which has been adjusted to the length corresponding to the area to be cleaned on the exterior of the building. In principle, the cleaning work is carried out from the top to the bottom of the building using the cleaning equipment 1 from the ground, but if the blower 2 cannot reach the top of the building, the worker may stand on a step stool or similar to perform the work.

[0034] The blowing device 2 has a horizontally elongated support section 2a to which a supply tube 5 for supplying cleaning solution is connected at the rear, a brush section 2b on the front side of the support section 2a with small bundles of bristles uniformly planted throughout, and a connecting section 2c provided on the support section 2a and connected to the tip of the extension pole 3.

[0035] Note that the spraying device 2 equipped with the brush section 2b is just one example, and different types of spraying devices can be used depending on the cleaning location. In addition to the brush-type structure shown in Figure 1, the spraying device can also be a cylindrical structure as shown in Figure 2, a spray type without bristles, or a liquid or foam spray type.

[0036] Furthermore, the supply tube 5 has a main supply tube section 5a that transports the cleaning fluid from the cleaning fluid tank 4, and four thinner supply tube branch sections 5b that branch off midway. The four supply tube branch sections 5b are connected to supply ports that are arranged at predetermined intervals in the lateral direction of the horizontally elongated support section 2a. With this configuration, the cleaning fluid from the supply tube 5 is uniformly supplied into the brush section 2b.

[0037] In other words, four supply tube branches 5b of the supply tube 5 are connected to the support section 2a to which the brush section 2b is attached and supported, and the cleaning solution is supplied to the support section 2a through the four supply tube branches 5b so that it reaches the entire brush section 2b. The cleaning solution contains an odor-reducing agent or a lemon-scented additive to reduce the odor of chlorine, preventing the odor from spreading to the surroundings.

[0038] Furthermore, a supply pump 6 is connected to the main body 5a of the supply tube 5. This supply pump 6 then pumps the cleaning fluid from the cleaning fluid tank 4 to the supply tube 5.

[0039] This allows the extension pole 3 to be connected, and the cleaning solution to be smoothly supplied through the supply tube 5 to the sprayer 2 located at a higher position. Then, the cleaning solution can be sprayed through the sprayer 2 while the brush part 2b scrubs, cleaning the exterior of the building, such as the outer walls.

[0040] After cleaning the entire exterior of the building, it is left to stand for a certain period of time. Then, the supply tube 5 that supplies the cleaning solution is replaced with a watering hose (not shown) that supplies water. The cleaning solution adhering to the cleaned areas is rinsed off with water, and then the area is dried. This completes the cleaning process.

[0041] According to the method described above, there is no need to use large-scale equipment such as scaffolding or gondolas, and biological contaminants (moss, mold, etc.), non-biological contaminants (sand, dust, etc.), and exhaust fumes on the exterior of the building can be removed by cleaning as a preliminary step before painting.

[0042] Furthermore, the cleaning device 1 of this embodiment can clean at a height of 5m-6m by connecting multiple extension poles 3. In the case of a detached house, it is possible to clean a house of about 2-3 stories.

[0043] Furthermore, the structure of the blowing device is not particularly limited, and as shown in Figure 2, the blowing device 7 may have a brush part 7b provided on a cylindrical support part 7a. The shapes of the connecting part 7c and the support part 7a may also be different from those of the blowing device 2 described above. In addition, the cleaning liquid tank 4 is not limited to a tank; a bucket or the like can also be used.

[0044] (2. Painting process) Next, the painting process will be explained. Similar to the cleaning process described above, the painting process in this embodiment allows for painting the exterior of the building without the use of scaffolding.

[0045] The painting process involves painting the exterior of the building, such as the outer walls, using a painting device 11. As shown in Figure 3, the painting device 11 has an applicator 12 for applying the paint. The paint used in the painting device 11 is diluted and formulated according to the properties of the exterior of the building to be painted, and has a viscosity that allows it to be smoothly supplied to the applicator 12. In this embodiment, as an example of paint, a paint is used that is diluted by adding 20% ​​or less of water to a paint concentrate with a viscosity of 1700-2000 mPa·s, which is composed of polyurethane resin, amine, N-methylpyrrolidone, ethylene glycol, and water.

[0046] It is also possible to use the paint concentrate as is. By using a paint concentrate of this viscosity, or by adding 20% ​​or less of water, it becomes possible to smoothly supply the paint from the paint tank to the application area.

[0047] Furthermore, the above is just an example, and the viscosity of the paint concentrate used can be 1400-2000 mPa·s. It is best to use the concentrate as is or add 20% or less of water to achieve a viscosity of 1100-2000 mPa·s. If the paint viscosity is less than 1100 mPa·s, smudging and dripping may occur, resulting in poor coloring and an unsightly finish. If it exceeds 2000 mPa·s, the smooth supply of paint to the application area may be hindered. In addition, since this paint can be mixed with clear paint and colored paint, it is possible to paint with a wide range of colors.

[0048] In addition to the applicator 12 described above, the painting apparatus 11 mainly comprises an extension pole 13 whose length can be adjusted to which the applicator 12 is attached, a paint tank 14 for storing paint, and a supply tube 15 for supplying paint. A control valve 16 for controlling the flow rate of paint is also attached to the middle of the supply tube 15.

[0049] By adjusting the paint flow rate with the control valve 16, even an amateur can perform efficient painting work. Similar to the cleaning process, painting is generally done from the top to the bottom of the building using the painting equipment 11 from the ground. However, if the applicator 2 cannot reach the top of the building, the worker can stand on a step stool or similar to perform the work.

[0050] Furthermore, the paint tank 14 has a storage section 14a for storing paint and a pump section 14b. The pump section 14b can pump and supply the paint. When using a conventional paint tank that does not have a pump section, it is also possible to use well-known means such as a manual pump, a pressure accumulator, a compressor, or a compressed air line as a paint supply means.

[0051] Furthermore, the applicator 12 includes an applicator roller 12A with a cylindrical applicator section around a shaft member, a supply section 12B that uniformly distributes and supplies paint to the applicator section around the applicator roller 12A, and a coupling section 12C that is coupled to the tip of the extension pole 13. An appropriate amount of paint is supplied to the supply section 12B through a supply tube 15, and the paint is dispersed laterally in the supply section 12B.

[0052] Furthermore, the supply tube 15 has a main tube portion 15a connected to the paint tank 14, and two thinner tube branch portions 15b that branch off midway. The two supply tube branch portions 15b are connected to two connection portions 12Bd of a protrusion 12Bb of the supply unit 12B, which will be described later, and paint is supplied in this configuration, with paint from the supply tube 15 being supplied to the supply unit 12B.

[0053] As shown in Figures 4(a) and 4(b), the supply unit 12B has a flat plate portion 12Ba located on the side of the coating roller 12A, and a protrusion 12Bb that extends from the flat plate portion 12Ba to the opposite side of the coating roller 12A. Inside the protrusion 12Bb, there is an elongated hollow supply chamber 12Bc divided into two sections, and two cylindrical connecting portions 12Bd protrude outwards, communicating with each supply chamber 12Bc which serves as a paint supply port.

[0054] Furthermore, each flat plate portion 12Ba has an elongated slit 12Be that communicates with each supply chamber 12Bc. These slits 12Be serve as paint discharge ports, and the paint is uniformly supplied and dispersed to the coating portion of the coating roller 12A through the slits 12Be.

[0055] Then, the appropriate amount of paint that leaks uniformly from the slit 12Be is scooped up by the outer circumference of the coating part of the coating roller 12A. Due to the moisture-absorbing and cushioning properties of the coating part, the exterior of the building is painted evenly during painting, and paint drips are avoided, so even an amateur can perform painting work efficiently.

[0056] Furthermore, since the paint flow rate can be adjusted by the control valve 16, the amount of paint supplied to the supply unit 12B, that is, the amount supplied to the application unit of the application roller 12A, can be adjusted, thereby suppressing uneven painting and paint dripping.

[0057] In this embodiment, the amount of paint corresponding to the exterior area of ​​the building is prepared in advance with a dilution ratio appropriate to the application target and stored in the paint tank 14. Since only the required amount needs to be prepared, it is advantageous in terms of cost.

[0058] Furthermore, the painting equipment 11 of this embodiment can paint at a height of 5m-6m by connecting multiple extension poles 13. For a detached house, it is possible to paint a house of about 2-3 stories.

[0059] Conventional painting processes require the installation of scaffolding or gondolas and the skills of skilled craftsmen. However, in this embodiment, even amateurs without professional-level skills can paint the exterior of a building. The same applies to cleaning the exterior of a building.

[0060] Furthermore, since cleaning and painting can be performed up to a certain height on the exterior of a building without the need for scaffolding or gondolas, labor savings, speed improvements, and cost reductions can be achieved. For example, a construction period that previously took about 14 to 20 days can be reduced to about 3 to 7 days with this embodiment, and costs that previously took about 1.5 million to 3 million yen can be cut to about 500,000 yen with this embodiment.

[0061] As described above, preferred embodiments of the present invention have been explained, but various additions, modifications, or deletions are possible without departing from the spirit of the present invention. [Explanation of Symbols]

[0062] 1. Cleaning equipment 2 Blowout tool 2a Support part 2b Brush part 2c joint 3 Extension poles 4. Cleaning solution tank 5. Supply tube 5a Tube body 5b Tube branch 6. Supply pump 7. Blower (modified version) 7a Support part 7b Brush section 7c joint 11 Painting equipment 12 Applicator 12A Coating Roller 12B Supply section 12Ba flat plate part 12Bb protrusion 12Bc supply room 12Bd Connection port (supply port) 12Be Slit (Discharge Port) 13 Extension poles 14 Paint Tanks 14a Storage section 14b Pump section 15. Supply tube 15a Tube body 15b Tube branch 16 Control valves

Claims

1. This is a building painting method that involves painting the exterior of a building. The process includes painting the exterior of a building using painting equipment to apply paint, The aforementioned painting equipment is Applicator for applying paint, A paint tank for storing paint, It has an extension pole whose length can be adjusted, The applicator is attached to the tip of the extension pole, The extension pole is adjusted to a length corresponding to the exterior of the building to be painted, and the exterior of the building is painted with the applicator. Building painting methods.

2. The aforementioned painting equipment is The aforementioned applicator, The aforementioned paint tank, A supply tube that supplies paint from the paint tank to the applicator, A feature comprising: The method for painting a building according to claim 1.

3. The aforementioned applicator is A supply unit that uniformly disperses and supplies the aforementioned paint, The paint is supplied from the aforementioned supply unit, and the coating unit applies the paint, A coupling portion provided in the supply portion and coupled to the tip of the extension pole, It has, The paint is supplied from the supply unit to the coating unit. The method for painting a building according to claim 2.

4. The aforementioned supply unit is A supply port through which paint is supplied via the supply tube, A discharge port for supplying paint to the coating section, A feature comprising: The method for cleaning a building according to claim 3.

5. The aforementioned supply unit is A flat plate portion having the aforementioned discharge port, The discharge portion has a protrusion that protrudes from the rear side, The aforementioned protrusion has a supply chamber inside, The supply port is connected to the supply chamber, A horizontally elongated slit is formed in the flat plate portion, the slit communicates with the supply chamber and is configured as the discharge port, and paint is supplied to the coating portion through the slit. The method for painting a building according to claim 4.

6. Multiple supply chambers are formed inside the aforementioned protrusion. The aforementioned supply port has multiple ports, and each supply port is connected to each supply chamber. The flat plate portion has multiple slits formed therein, with each slit positioned to correspond to each supply chamber. The method for painting a building according to claim 5.

7. The coating portion is provided around the shaft member which is configured parallel to the flat plate portion. The coating roller is configured in a cylindrical shape that can rotate around the aforementioned shaft member. The method for painting a building according to claim 5.

8. The aforementioned paint tank is A pressure unit for pumping paint, It has a tank storage section for storing paint, The method for painting a building according to claim 1.

9. The aforementioned painting equipment is The supply tube further comprises a valve located in the middle of the tube. The aforementioned valve is A control valve characterized by controlling the flow rate of paint through a push or trigger operation by the operator. The method for painting a building according to claim 2.

10. The aforementioned paint is characterized by being either a paint concentrate with a viscosity of 1400 to 2000 mPa·s, or a paint to which 20% or less of water has been added. The method for painting a building according to claim 1.

11. The aforementioned paint is a mixture of clear paint and colored paint. The clear coating is characterized by having a lower viscosity than the color coating. The method for painting a building according to claim 10.

12. A quantity of paint corresponding to the exterior area of ​​the building is prepared in advance with a dilution ratio appropriate to the target area, which is the exterior of the building, and stored in the paint tank. The method for painting a building according to claim 10.

13. Prior to the aforementioned painting process, The process involves cleaning the exterior of a building using a cleaning device that sprays cleaning solution, The process further includes leaving it for a certain period of time and then rinsing it off with water. A method for painting a building according to any one of claims 1 to 12.

14. The aforementioned cleaning device is A sprayer that dispenses cleaning solution, A cleaning extension pole with adjustable length, It includes a pressure section for pumping the cleaning solution and a cleaning solution tank for storing the cleaning solution, A cleaning fluid supply tube that supplies cleaning fluid from the tank to the blower, A feature comprising: The method for painting a building according to claim 13.

15. The aforementioned blowing device is The support portion to which the cleaning fluid supply tube is connected on the rear side, The front side of the support portion is a brush portion in which bristles are planted all over, The support portion is provided and has a coupling portion which is coupled to the tip of the cleaning extension pole, The support portion is configured such that cleaning fluid is uniformly supplied to the brush portion from the cleaning fluid supply tube through the support portion. The method for painting a building according to claim 12.

16. The aforementioned support portion is The rear side has a supply port from which cleaning fluid is supplied from the cleaning fluid supply tube, The front side of the brush section has a discharge port for discharging cleaning fluid, A feature comprising: The method for painting a building according to claim 15.

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