Dispersing device

Abstract

To provide a coating device capable of easily applying a coating material with less operators.SOLUTION: A coating device 100 mainly includes: a squeegee part 110; a gripping part 120; a plurality of discharge parts 130a-130d; a stirring part 140; and an air motor 150. The squeegee part 110 mainly includes: a blade 111; a squeegee main body 112; a squeegee connection part 113; and a pipe holding part 114. The plurality of discharge parts 130a-130d include two inside discharge parts 130b and 130c and two outside discharge parts 130a and 130d that are made of metallic cylindrical tubes, and are attached to the squeegee main body 112 by being juxtaposed in a longer direction of the squeegee main body 112. The inside discharge parts 130b and 130c are attached in front of both ends of a laterally running pipe 162, and the outside discharge parts 130a and 130d are attached to both ends of the laterally running pipe 162.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an application device for applying paint. [Background technology]

[0002] For example, there is a known construction device for applying a waterproof coating layer to the roof surface of a building. The construction device pressure-feeds an unmixed two-component urethane resin waterproofing paint onto the roof surface from a pressure-feeding device installed on the ground, mixes the base agent and curing agent using a mixer installed on the roof, and then discharges the mixed paint onto the roof surface using a discharge nozzle (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 8-120851 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, such a configuration for discharging paint requires an operator to hold the nozzle that discharges the paint and an operator to level the paint.

[0005] The present invention has been made in view of the above-mentioned problems, and has an object to provide an application device that can easily apply paint with a small number of workers. [Means for solving the problem]

[0006] The coating device according to the present invention is characterized by comprising a cage portion extending in a predetermined direction and a plurality of discharge portions attached to the cage portion, the plurality of discharge portions being attached in a line in the predetermined direction.

[0007] The multiple discharge sections arranged in a predetermined direction have an inner discharge section close to the longitudinal center of the cage section and an outer discharge section that is further away from the center in the longitudinal direction than the inner discharge section, and it is preferable that the inner diameter of the inner discharge section is shorter than the inner diameter of the outer discharge section.

[0008] Preferably, the inner discharge portion has two inner discharge portions equidistant from the center in the longitudinal direction, and the outer discharge portion includes two outer discharge portions equidistant from the center in the longitudinal direction.

[0009] It is preferable that the cage portion has a flat blade, and the discharge portion discharges the liquid in a direction that intersects with the predetermined direction and is parallel to the blade.

[0010] The liquid ejection device further includes a gripping portion extending from the cage portion in a direction intersecting the predetermined direction, and a stirring portion attached to the gripping portion and supplying liquid to a plurality of discharge portions, and the stirring portion preferably includes a first screw and a second screw, and the fluid extrusion direction of the first screw is opposite to the fluid extrusion direction of the second screw.

[0011] It is preferable that the device further includes an air motor attached to the gripping portion, and the first screw and the second screw are rotated by the air motor.

[0012] The liquid may be composed of a first material and a second material, and may include a supply unit having a confluence where the first material and the second material meet, and a flow control member that controls the flow rate of the second material flowing into the confluence, and the confluence unit may supply the combined first material and second material to the stirring unit.

[0013] The supply section may have a check valve that prevents the second material flowing into the confluence section from flowing back.

[0014] The supply unit may further include a first valve that controls the flow of the first material to the confluence unit, a second valve that controls the flow of the second material to the confluence unit, and an operating unit that can simultaneously open and close the first valve and the second valve.

[0015] The junction may include an opening capable of receiving the cleaning agent. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide an application device that can easily apply paint with a small number of workers. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a block diagram schematically illustrating a coating apparatus according to a first embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 10 is a plan view of a supply unit included in a coating device according to a second embodiment of the present invention. [Figure 7] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, a coating system 10 having a coating device 100 according to a first embodiment of the present invention will be described with reference to FIG.

[0019] The painting system 10 mainly comprises an application device 100, a first pump 11, a second pump 12, a first tank 13, a second tank 14, and a compressed air source 15, and is used to mix a one-component urethane waterproofing agent (first material) with a curing accelerator (second material) and apply the mixture.

[0020] The first tank 13 is connected to the first pump 11 via piping, and the first pump 11 is connected to the application device 100 via a first connecting hose 16. The first tank 13 contains a urethane waterproofing agent. When the first pump 11 operates, the waterproofing agent in the first tank 13 is sucked into the first pump 11 from inside the first tank 13, and then pressure-fed via the first connecting hose 16 to the application device 100 installed on the roof of the building 20.

[0021] The second tank 14 is connected to the second pump 12 via piping, and the second pump 12 is connected to the application device 100 via a second connecting hose 17. The second tank 14 contains a curing accelerator. When the second pump 12 operates, the curing accelerator in the second tank 14 is sucked into the second pump 12 from the second tank 14 and then pumped to the application device 100 via the second connecting hose 17.

[0022] The compressed air source 15 is an air compressor and / or an air tank, and is connected to the coating device 100 via a third connecting hose 18. The compressed air discharged from the compressed air source 15 is sent to the coating device 100 by the third connecting hose 18.

[0023] 2 to 4, the coating device 100 is described. The coating device 100 mainly includes a cage unit 110, a gripping unit 120, a plurality of discharge units 130a to 130d, an agitating unit 140, and an air motor 150.

[0024] The cage section 110 mainly includes a blade 111, a cage body 112, a cage connection section 113, and a pipe holding section 114. The cage body 112 is an angle steel with an L-shaped cross section formed by joining two flat plates at a right angle, and extends a predetermined length in a predetermined direction. Hereinafter, the direction in which the cage body 112 extends is referred to as the longitudinal direction. One of the first flat plates 112a is trapezoidal in plan view, and the other, the second flat plate 112b, is rectangular. The blade 111 has the shape of a metal flat plate with the same longitudinal length as the cage body 112, and one side extending in the longitudinal direction has a sawtooth shape in plan view. The blade 111 is attached to the second flat plate 112b via four bolts and nuts 115, and the sawtooth-shaped side protrudes from the cage body 112. The cage connection part 113 is a flat plate that protrudes perpendicularly from the center of the first flat plate 112a in the longitudinal direction. The piping holding part 114 is a flat plate that protrudes parallel to the center of the first flat plate 112a in the longitudinal direction and in the opposite direction to the second flat plate 112b. The cage connection part 113 and the piping holding part 114 are fixed to the first flat plate 112a via bolts and nuts 116.

[0025] The gripping portion 120 is a cylindrical metal tube with a slit 121 at its tip. The cage connecting portion 113 is inserted into the slit 121, and the two are fixed together with bolts and nuts 122. Braces 123 are provided from both longitudinal ends of the first flat plate 112a to the gripping portion 120. This firmly fixes the cage portion 110 and the gripping portion 120 together.

[0026] The multiple discharge sections 130a-130d include two inner discharge sections 130b, 130c and two outer discharge sections 130a, 130d, each made of a metallic cylindrical pipe. These are aligned in the longitudinal direction of the cage body 112 and attached to the cage body 112. More specifically, a pipe 161 connected to the stirring section 140 (described later) is fixed in a through-hole opening in the pipe holder 114, and a horizontal pipe 162 is connected to the end of the pipe 161 passing through the through-hole. The horizontal pipe 162 is a cylindrical pipe extending in the longitudinal direction on the bottom side of the cage section 110. The inner discharge sections 130b, 130c are attached just before both ends of the horizontal pipe 162, and the outer discharge sections 130a, 130d are attached to both ends of the horizontal pipe 162. The inner diameters of the inner discharge sections 130b, 130c are smaller than the inner diameters of the outer discharge sections 130a, 130d. If the inner diameters of the inner discharge portions 130b and 130c were larger than the inner diameters of the outer discharge portions 130a and 130d, most of the paint flowing through the lateral pipe 162 would be discharged from the inner discharge portions 130b and 130c, and less paint would be transported to the outer discharge portions 130a and 130d. This could result in insufficient paint being discharged from the outer discharge portions 130a and 130d and the paint not being discharged evenly over the entire longitudinal length of the blade 111. However, according to this embodiment, the inner diameters of the inner discharge portions 130b and 130c are smaller than the inner diameters of the outer discharge portions 130a and 130d, so the amount of paint discharged from the inner discharge portions 130b and 130c is reduced and the paint is transported enough to the outer discharge portions 130a and 130d, so the paint is discharged evenly over the entire longitudinal length of the blade 111.

[0027] 3, the inner discharge portions 130b and 130c are disposed equidistant from the longitudinal center of the cage body 112, and the outer discharge portions 130a and 130d are disposed longitudinally outward of the inner discharge portions 130b and 130c and equidistant from the longitudinal center of the cage body 112. In other words, the distance from the longitudinal center of the cage body 112 to the two inner discharge portions 130b and 130c is shorter than the distance from the longitudinal center of the cage body 112 to the two outer discharge portions 130a and 130d. Furthermore, the distance from the longitudinal center of the cage body 112 to the inner discharge portion 130b is longer than the distance between the inner discharge portion 130b and the outer discharge portion 130a. The same is true for the inner discharge portion 130c and the outer discharge portion 130d. The two outer discharge portions 130a, 130d are disposed inside both longitudinal ends of the blade 111. If the paint discharged from the discharge portions 130a to 130d flows outside the longitudinal ends of the blade 111, the blade 111 will not be able to evenly level the paint, which could result in unevenness. However, according to this embodiment, the two outer discharge portions 130a, 130d are disposed inside both longitudinal ends of the blade 111, so the paint discharged from the outer discharge portions 130a, 130d will not flow outside the longitudinal ends of the blade 111, and all of the paint discharged by the blade 111 can be evenly leveled.

[0028] 4, the multiple discharge portions 130a to 130d are installed so that their central axes are perpendicular to the longitudinal direction of the cage body 112 and parallel to the plane of the blade 111 that faces the discharge portions 130a to 130d. If the paint discharged from the discharge portions 130a to 130d comes into contact with the blade 111 before directly contacting the surface to be coated, bubbles may form when the paint comes into contact with the blade 111. However, according to this embodiment, the paint discharged from the discharge portions 130a to 130d comes into direct contact with the surface to be coated without coming into contact with the blade 111, so no bubbles form in the paint.

[0029] The air motor 150 is connected to the compressed air source 15 via the third connecting hose 18, and generates a rotational force using compressed air supplied from the compressed air source 15. One end of the air motor 150 is connected to the agitating unit 140, and the rotational force generated by the air motor 150 is transmitted to the agitating unit 140. The air motor 150 is fixed to the gripping unit 120 by a plurality of mounting bands 163.

[0030] The agitator 140 is driven by an air motor 150 and has the function of agitating and mixing the waterproofing agent and the hardening accelerator, as will be described in detail later.

[0031] The gripping part 120 is provided with a supply part 170. The supply part 170 mainly includes a waterproofing agent valve 171, an accelerator valve 172, and an air valve 173.

[0032] The first connecting hose 16 is connected to the inlet 171a of the waterproofing agent valve 171, and the first mixing pipe 174a is connected to the outlet 171b. As a result, the waterproofing agent in the first tank 13 is sent to the waterproofing agent valve 171 via the first pump 11, and when the waterproofing agent valve 171 is opened, the waterproofing agent is sent to the first mixing pipe 174a.

[0033] The second connecting hose 17 is connected to the inlet 172a of the accelerator valve 172, and the second mixing pipe 174b is connected to the outlet 172b. This allows the hardening accelerator in the second tank 14 to be sent to the accelerator valve 172 via the second pump 12. When the accelerator valve 172 is opened, the hardening accelerator is sent to the second mixing pipe 174b.

[0034] The first mixing pipe 174a and the second mixing pipe 174b are joined to a third mixing pipe 174c, which is connected to the agitation unit 140. As a result, the waterproofing agent sent from the waterproofing agent valve 171 and the hardening accelerator sent from the accelerator valve 172 are both sent to the agitation unit 140 via the third mixing pipe 174c. Because the waterproofing agent and the hardening accelerator are pressurized by the first pump 11 and the second pump 12, the supply unit 170 can supply the pressurized liquid to the agitation unit 140 simply by opening the valve.

[0035] The third connecting hose 18 is connected to the inlet 173a of the air valve 173, and the compressed air pipe 174d is connected to the outlet 173b. As a result, compressed air from the compressed air source 15 is sent to the air valve 173, and when the air valve 173 is opened, the compressed air is sent to the air motor 150.

[0036] Next, the stirring unit 140 will be described in detail with reference to Fig. 5. The stirring unit 140 mainly includes an elbow 141, a lid 142, an O-ring 143, a nut 144a, a first screw 145, a joint bolt 144b, a second screw 146, a bolt 144c, a casing 147, and an adapter 148.

[0037] The elbow 141 mainly comprises a main pipe portion 141a with an internal thread and a secondary pipe portion 141b with an external thread. The secondary pipe portion 141b is connected to the main pipe portion 141a so as to be perpendicular to the main pipe portion 141a and so that the interiors of the two pipes penetrate each other.

[0038] The lid portion 142 mainly comprises a plate-shaped portion 142b having multiple opposing flat side portions 142a, a first connecting portion 142c protruding from the center of the top surface of the plate-shaped portion 142b, and a second connecting portion 142d protruding from near the outer periphery of the bottom surface of the plate-shaped portion 142b. The outer peripheral surface of the first connecting portion 142c is externally threaded and threadably engages with the main pipe portion 141a of the elbow 141. The outer peripheral surface of the second connecting portion 142d is externally threaded from a position a predetermined distance axially from the bottom surface of the plate-shaped portion 142b to the protruding end of the second connecting portion 142d. The O-ring is made of elastic resin and is fitted onto the outer peripheral surface of the second connecting portion 142d near the bottom surface of the plate-shaped portion 142b.

[0039] The first screw 145 has three blades 145a to 145c and a central hole 145d. The tips of the blades protrude in the circumferential direction of the rotation circle and are bent so as to protrude toward the second screw 146. The second screw 146 has three blades 146a to 146c and a central hole 146d. The tips of the blades protrude in the circumferential direction of the rotation circle and are bent so as to protrude toward the first screw 145.

[0040] The casing 147 has a cylindrical shape with a bottom, and has an internal thread 147a cut on the inner circumference of the cylinder near the open end, and a through-hole with an internal thread cut in the bottom. The second connecting portion 142d of the lid portion 142 can be screwed onto the internal thread 147a on the inner circumference of the cylinder. The adapter 148 has an external thread on one end and an internal thread on the other end. The external thread screws into the through-hole at the bottom of the casing 147. A pipe 161 is connected to the internal thread.

[0041] An air motor 150 is connected to the main pipe portion 141a of the elbow 141, and a rotation shaft (not shown) of the air motor 150 passes through the inside of the main pipe portion 141a. The rotation shaft is inserted into and threadedly engaged with the nut 144a, the center hole 145d of the first screw 145, and the joint bolt 144b. The bolt 144c is inserted into and threadedly engaged with the center hole 146d of the second screw 146 and the joint bolt 144b. As a result, the first screw 145 and the second screw 146 are connected to the air motor 150 and rotate.

[0042] Three blades 145a to 145c of the first screw 145 protrude toward the second screw 146, and the first screw 145 rotates so as to push out liquid toward the second screw 146. Furthermore, three blades 146a to 146c of the second screw 146 protrude toward the first screw 145, and the second screw 146 rotates so as to push out liquid toward the first screw 145. In other words, the fluid extrusion direction of the first screw 145 is opposite to the fluid extrusion direction of the second screw 146.

[0043] After the joined nut 144a, first screw 145, joint bolt 144b, second screw 146, and bolt 144c are stored inside casing 147, second connecting portion 142d is screwed into female thread 147a. In this manner, stirring portion 140 is assembled.

[0044] Next, a description will be given of the operation of the painting system 10. It is assumed that the waterproofing agent valve 171, the accelerator valve 172, and the air valve 173 are closed in advance.

[0045] First, a waterproofing agent is prepared in the first tank 13, and a curing accelerator is prepared in the second tank 14. Then, the first pump 11, the second pump 12, and the compressed air source 15 are operated to pump the waterproofing agent, the curing accelerator, and the compressed air to the coating device 100.

[0046] Next, the air valve 173 is opened, causing the air motor 150 to start rotating. Then, the waterproofing agent valve 171 and the accelerator valve 172 are opened, causing the pressurized waterproofing agent and accelerator to enter the third mixing pipe 174c. In this state, the waterproofing agent and accelerator are not sufficiently mixed to demonstrate their performance.

[0047] Next, the waterproofing agent and the hardening accelerator that have entered the agitation unit 140 via the third mixing pipe 174c are thoroughly mixed by the first screw 145 and the second screw 146. More specifically, the three blades 145a to 145c of the first screw 145 extrude the waterproofing agent and the hardening accelerator toward the second screw 146 while stirring them, and the three blades 146a to 146c of the second screw 146 extrude the waterproofing agent and the hardening accelerator toward the first screw 145 while stirring them. The waterproofing agent and the hardening accelerator are thoroughly mixed together by the action of these two blades and the pressures of the first pump 11 and the second pump 12, and then extruded from the agitation unit 140 into the piping 161.

[0048] The mixed paint of the waterproofing agent and the curing accelerator extruded into the pipe 161 reaches the horizontal pipe 162. The mixed paint that reaches the horizontal pipe 162 is discharged from the inner discharge portions 130b and 130c and also from the outer discharge portions 130a and 130d. As described above, because the inner diameters of the inner discharge portions 130b and 130c are smaller than the inner diameters of the outer discharge portions 130a and 130d, the amount of paint discharged from the inner discharge portions 130b and 130c is reduced and sufficient paint is transported to the outer discharge portions 130a and 130d. As a result, appropriate amounts of paint are discharged from the inner discharge portions 130b and 130c and the outer discharge portions 130a and 130d, respectively, and the paint is discharged evenly along the entire longitudinal length of the blade 111. Furthermore, as described above, the direction in which the multiple discharge portions 130a to 130d discharge paint is parallel to the plane of the blade 111 that faces the discharge portions 130a to 130d. As a result, the paint discharged from the discharge portions 130a to 130d comes into direct contact with the coating surface without coming into contact with the blade 111, and therefore no bubbles are generated in the paint.

[0049] Then, while discharging paint, the worker moves the coating device 100 back and forth and / or left and right to evenly spread the paint dispensed onto the target surface. At this time, because the two outer discharge portions 130a, 130d are installed inside both longitudinal ends of the blade 111, the paint dispensed from the outer discharge portions 130a, 130d does not flow outside the longitudinal ends of the blade 111. This allows the worker to easily evenly spread the paint using the blade 111 while discharging the paint. In other words, one person can hold the discharge portions 130a to 130d and level the paint.

[0050] According to this embodiment, paint can be easily applied with a small number of workers.

[0051] Next, a coating apparatus according to a second embodiment of the present invention will be described with reference to Figures 6 and 7. The coating apparatus according to the second embodiment differs from the coating apparatus 100 according to the first embodiment in the configuration of the supply unit 270. Hereinafter, the same components as those in the coating apparatus 100 according to the first embodiment will be denoted by the same reference numerals and their description will be omitted, and the supply unit 270 will be described.

[0052] Supply unit 270 is provided on grip unit 120. Supply unit 270 mainly includes waterproofing agent valve 271, accelerator valve 272, cross joint (junction) 273, and lever (operation unit) 274. Waterproofing agent valve (first valve) 271 and accelerator valve (second valve) 272 are so-called ball valves, and are connected to one lever 274. By moving lever 274, waterproofing agent valve 271 and accelerator valve 272 can be opened and closed simultaneously.

[0053] A first connection hose 16 is connected to the inlet 271a of the waterproofing agent valve 271 via an adapter or the like, and a waterproofing agent hose 271c is connected to the outlet 271b via an adapter or the like. A second connection hose 17 is connected to the inlet 272a of the accelerator valve 272 via an adapter or the like, and an accelerator hose 272c is connected to the outlet 272b via an adapter or the like.

[0054] Cross joint 273 has four openings 273a to 273d. The four openings 273a to 273d are connected to one another inside cross joint 273. In the plane shown in Fig. 6, adjacent openings form an angle of 90 degrees with one another. Waterproofing agent hose 271c is connected to first joint opening 273a via an adapter or the like.

[0055] The accelerator hose 272c is connected to the second joint opening 273b via a check valve 275, a flow control member 276, an adapter, and the like. The check valve 275 mainly includes a hexagon socket head screw 275a, a steel ball 275b, and a spring 275c, and prevents backflow of the accelerator. That is, the steel ball 275b and the spring 275c are fixed in the nipple 277 by the hexagon socket head screw 275a. In this state, the steel ball 275b is urged by the spring 275c to be pressed against the hexagon socket head screw 275a; in other words, it is urged in the opposite direction to the flow of the accelerator. When the curing accelerator flows from the accelerator hose 272c to the check valve 275, the pressure of the curing accelerator causes the steel ball 275b to push against the spring 275c and move, creating a space between the steel ball 275b and the hexagon socket head screw 275a through which the curing accelerator can pass. This allows the curing accelerator to pass through the check valve 275. On the other hand, if the curing accelerator attempts to flow back, the steel ball 275b is pushed by the spring 275c and tightly contacts the hexagon socket head screw 275a. This eliminates the space between the steel ball 275b and the hexagon socket head screw 275a, preventing the curing accelerator from flowing back. The flow control member 276 mainly includes a packing 276a, a nozzle tip 276b, and a nozzle nut 276c, and controls the flow rate of the curing accelerator. The packing 276a is made of a thin, annular fluororesin. The nozzle tip 276b has a cylindrical shape, and its inner diameter is determined appropriately depending on the required flow rate of the curing accelerator. The packing 276a, the nozzle tip 276b, and the nozzle nut 276c are housed by being sandwiched between the nipple 277 and the adapter 278b.

[0056] Third joint opening 273c is closed by detachable blind lid 273e screwed in via an adapter or the like, and third mixing tube 174c is connected to fourth joint opening 273d via an adapter or the like.

[0057] The function of the supply unit 270 will now be described. When the lever 274 is operated to open the waterproofing agent valve 271 and the accelerator valve 272, the waterproofing agent flows from the first connecting hose 16 through the waterproofing agent valve 271 and the waterproofing agent hose 271c into the cross joint 273. On the other hand, the curing accelerator flows from the second connecting hose 17 through the accelerator valve 272 and the accelerator hose 272c into the cross joint 273. Here, the curing accelerator passes through the check valve 275 and the flow rate control member 276 before flowing into the cross joint 273. By passing through the flow rate control member 276, the flow rate of the curing accelerator is adjusted so that the mixture ratio of the waterproofing agent and the curing accelerator is optimized.

[0058] Here, the waterproofing agent is pressurized by the first pump 11, and the hardening accelerator is pressurized by the second pump 12. In other words, because they are each pressurized by a different pump, pump pulsation or a pressure difference can cause the waterproofing agent pressure to exceed the hardening accelerator pressure within the cross joint 273, potentially causing the waterproofing agent to flow back into the accelerator hose 272c. If the waterproofing agent flows back, it may react with the hardening accelerator within the accelerator hose 272c and harden, potentially clogging the accelerator hose 272c. However, because a check valve 275 is provided between the cross joint 273 and the accelerator hose 272c, the waterproofing agent does not flow back into the accelerator hose 272c, preventing it from clogging the accelerator hose 272c.

[0059] As described above, the waterproofing agent flows into the cross joint 273 through opening 273a, and the curing accelerator flows into the cross joint 273 through opening 273b. The combined waterproofing agent and curing accelerator then flow out through opening 273d. Here, openings 273a and 273b form a 90-degree angle, openings 273a and 273d form a 90-degree angle, and openings 273b and 273d form a 180-degree angle. Therefore, the waterproofing agent flows out of the cross joint 273 after a 90-degree turn, while the curing accelerator flows straight through the cross joint 273. This allows the curing accelerator to properly merge with the waterproofing agent and mix. Further stirring the waterproofing agent and curing accelerator in this state in the stirring unit 140 achieves a more optimal mixture. This allows the waterproofing agent and curing accelerator to be mixed in the appropriate ratio without clogging hoses or the like.

[0060] Next, we will explain how to clean the inside of the supply unit 270. Because the waterproofing agent mixed with the curing accelerator has a short curing time, it may harden even during a short period, such as during a worker's break. Therefore, the mixed waterproofing agent and curing accelerator must be cleaned and removed as needed. In this embodiment, the mixed waterproofing agent and curing accelerator are present inside the cross joint 273, the third mixing tube 174c, the agitation unit 140, and the discharge units 130a-130d, and these interiors must be cleaned. First, the blind cover 273e screwed into the third joint opening 273c is removed, and a pump (not shown) is connected. The pump then pumps the cleaning agent solvent into the cross joint 273. The cleaning agent then passes through the cross joint 273, the third mixing tube 174c, the agitation unit 140, and is discharged from the discharge units 130a-130d. This removes the waterproofing agent and hardening accelerator from the cross joint 273, the third mixing pipe 174c, the agitating section 140, and the discharge sections 130a to 130d, and cleans the insides of these components, allowing a single worker to easily clean the insides.

[0061] According to this embodiment, the same effects as those of the first embodiment can be obtained, and the waterproofing agent and the hardening accelerator can be mixed in an appropriate ratio without clogging the hose, etc., and the inside can be easily cleaned by one person.

[0062] In all the embodiments, the application device has been described as applying a one-component urethane waterproofing agent, but it may also apply a two-component waterproofing agent or other one-component or two-component paint.

[0063] The inner diameters of the inner discharge portions 130b and 130c do not have to be smaller than the inner diameters of the outer discharge portions 130a and 130d, and may be the same as each other.

[0064] Furthermore, the inner discharge portions 130b and 130c, and the outer discharge portions 130a and 130d do not have to be provided at equal distances from the center of the cage body 112 in the longitudinal direction.

[0065] The distance from the longitudinal center of the cage body 112 to the inner discharge portion 130b does not have to be longer than the distance between the inner discharge portion 130b and the outer discharge portion 130a. The same applies to the inner discharge portion 130c and the outer discharge portion 130d.

[0066] One side of the blade 111 may be linear instead of being sawtooth-shaped, and the two outer discharge portions 130a, 130d may not be located further inward than both ends of the blade 111 in the longitudinal direction.

[0067] The central axes of the multiple discharge portions 130a-130d do not necessarily need to be perpendicular to the longitudinal direction of the cage body 112, as long as they intersect with the longitudinal direction. The multiple discharge portions 130a-130d do not need to be installed so as to be parallel to the plane of the blade 111 that faces the discharge portions 130a-130d, as long as they are at an angle such that the discharged paint comes into direct contact with the surface to be painted without coming into contact with the blade 111.

[0068] Although the multiple discharge portions 130a to 130d have been described as being made up of cylindrical pipes, they may be made up of rectangular pipes or other tubular shapes other than cylindrical pipes.

[0069] The angle formed by adjacent openings 273a to 273d in cross joint 273 does not have to be 90 degrees, as long as it is at least less than 180 degrees. Cross joint 273 is only required to have at least three openings 273a to 273c, and opening 273d may not be provided. Furthermore, check valve 275 or flow rate control member 276 may not be provided.

[0070] Furthermore, the coating device 100 can spray paint not only on the roof of the building 20, but also on the street and indoors.

[0071] The size, shape, and quantity of each member shown in the present specification and drawings are examples and are not limited to these. Furthermore, the materials of each member are examples and are not limited to these.

[0072] Although embodiments of the present invention have been described herein with reference to the accompanying drawings, it will be apparent to those skilled in the art that modifications may be made in the structure and relationship of the parts without departing from the scope and spirit of the invention as described. [Explanation of symbols]

[0073] 10 Painting System 11 First Pump 12 Second Pump 13 First Tank 14 Second Tank 15 Compressed air source 16 First connecting hose 17 Second connecting hose 18 Third connecting hose 100 Coating device 110 Cage section 111 Blade 112 Cage body 120 Gripping part 130a Outside discharge part 130b Inner discharge part 130c Inner discharge part 130d Outside discharge part 140 Stirring section 145 First Screw 146 Second Screw 150 air motor 162 Horizontal pipe 171 Waterproofing valve 172 Accelerator valve 173 Air valve

Claims

1. a cage body extending in a predetermined direction; a flat blade attached to the cage body; a plurality of discharge units attached to the cage body and configured to discharge paint; a gripping portion extending from the cage body in a direction intersecting the predetermined direction; an agitation unit attached to the gripping unit and supplying the paint to the plurality of discharge units; a horizontal pipe provided in the cage body and to which the discharge portion is attached; a pipe for sending the paint from the agitation unit to the horizontal pipe; Equipped with the plurality of discharge portions are arranged in the predetermined direction and attached to the horizontally running pipe, The discharge portion is a cylindrical pipe, and the central axis of the cylindrical pipe is perpendicular to the longitudinal direction of the cage body and is parallel to the blade, The discharge side tips of the plurality of discharge parts are installed away from the blade. Coating equipment.

2. The piping is connected to the horizontal pipe at the center of the cage body in the longitudinal direction, The coating device described in claim 1, wherein the multiple discharge portions arranged in the predetermined direction include an inner discharge portion closer to the longitudinal center of the cage body and an outer discharge portion farther from the center in the longitudinal direction than the inner discharge portion, and the inner diameter of the inner discharge portion is shorter than the inner diameter of the outer discharge portion.

3. The piping is connected to the horizontal pipe at the center of the cage body in the longitudinal direction, The plurality of discharge portions arranged in the predetermined direction include an inner discharge portion close to a center in a longitudinal direction of the cage body, and an outer discharge portion farther from the center in the longitudinal direction than the inner discharge portion, The coating device according to claim 1 or 2, wherein the inner discharge portion has two inner discharge portions that are equidistant from the center in the longitudinal direction, and the outer discharge portion includes two outer discharge portions that are equidistant from the center in the longitudinal direction.

4. The cage body includes a flat blade, The coating device according to claim 1 , wherein the discharge portion discharges the coating material in a direction that intersects with the predetermined direction and is parallel to the blade.

5. The coating device according to claim 1 , wherein the stirring unit includes a first screw and a second screw, and the fluid extruding direction of the first screw is opposite to the fluid extruding direction of the second screw.

6. Further comprising an air motor attached to the gripping portion, 6. The coating device according to claim 5, wherein the first screw and the second screw are rotated by the air motor.

7. the coating material comprises a first material and a second material; a supply unit including a confluence portion where the first material and the second material are confluenced, and a flow rate control member that controls a flow rate of the second material flowing into the confluence portion; The confluence section supplies the confluenced first material and the second material to the stirring section. The coating device according to any one of claims 1 to 6.

8. The coating apparatus according to claim 7 , wherein the supply section has a check valve that prevents the second material flowing into the confluence section from flowing back.

9. 9. The coating apparatus according to claim 7, wherein the supply unit further comprises: a first valve that controls a flow of the first material to the confluence unit; a second valve that controls a flow of the second material to the confluence unit; and an operation unit that can simultaneously open and close the first valve and the second valve.

10. The applicator according to claim 7 , wherein the confluence portion has an opening capable of receiving the cleaning agent.

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