JPH0996103A - Coating spray gun - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the efficiency of a coating spraying work by attaching an attachment for a human body, to a coating supply pipe which is connected thereto with a shut-off valve and a nozzle connected to an air supply hole, and by connecting a connector for connecting the nozzle to the hose. SOLUTION: Three coating supply pipes 1 are connected to discharge pipes 3 of coating supply devices 2. Branch hoses 26 connected to an air supply hose 4 are connected to air supply pipes. An attachment 5 is set around the waist of a worker who holds by his hands nozzles 9 integrally incorporated with the attachment while shut-off valves of the coating supply pipes 1 are opened so as to allow air to flow. Thus, coatings are sucked through communication holes in the nozzles 9 and a flexible pipe 8, and are jetted from the front end parts of the jet holes in the nozzle bodies.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material spray gun used for simultaneously spraying plastering materials, stone finish coating materials, outer wall spray finishing coating materials and the like having different colors.

[0002]

2. Description of the Related Art Conventionally, this type of coating material spray gun supplies two coating materials each connected to a discharge pipe of a coating material supply device fixed in parallel with a supporting member that can be held by hand. A pipe, an air nozzle attached to the tip of the coating material supply pipe to discharge the coating material by supplying air, and a main plug that opens and closes at the same time by operating a lever interposed in the coating material supply pipe. It is configured.

[0003]

The conventional coating material spray gun is used by holding it by hand and spraying the coating material from a nozzle, and the support member, coating material supply pipe, main plug, air nozzle, etc. Since it is attached, there is a drawback that it is heavy and difficult to work, and it requires heavy work, and cannot work for a long time. Further, since it is heavy and difficult to work, it is difficult to spray in a uniform state, it is difficult to obtain a uniform finish, and color unevenness easily occurs.

In view of the above-mentioned conventional drawbacks, the present invention has been made.
You can ease the spraying work by reducing the weight of the part you hold by hand,
An object of the present invention is to provide a coating material spray gun that can spray the coating material uniformly and uniformly.

The above and other objects and novel characteristics of the present invention will become more fully apparent when the following description is read in view of the accompanying drawings. However, the drawings are only for explanation and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above object, the present invention provides at least two coating material supply pipes each having an on-off valve connected to a discharge pipe of a coating material supply device, and at least the coating material supply pipes. Fittings attached to two or more coating material supply pipes, which can be attached to the body, nozzles connected to the at least two or more coating material supply pipes via flexible hoses, and these nozzles An air supply hose equipped with an on-off valve for spraying the coating material from the nozzles attached to each of the nozzles, and a connector for connecting the at least two nozzles constitute a coating material spray gun.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 7, reference numerals 1, 1, 1 denote rear end portions respectively connected to the discharge pipes 3, 3, 3 of the coating material supply devices 2, 2, 2. The coating material supply pipes 1, 1 and 1 are provided with the three coating material supply pipes 1a, 1a and 1a.
Opening valves 4, 4, 4 for opening and closing are installed.

Reference numeral 5 designates the three coating material supply pipes 1, 1, 1
Is attached to the waist of the worker, and the attachment 5 is a belt 6 that can be attached to the waist of the worker, and the three coating material supply pipes 1 attached to the belt 6.
It is composed of fixing bands 7, 7 and 7 for fixing 1 and 1 in parallel.

Reference numerals 8, 8, 8 denote the coating material supply pipes 1, 1,
A flexible hose attached to the tip of the flexible hose 1. Nozzles 9, 9 and 9 for injecting a coating material are attached to the tip of the flexible hose 8, 8, 8.

As shown in FIGS. 5 to 7, the nozzles 9, 9, 9 are nozzle cylinders 10 connected to the flexible hose 8, and a nozzle body 1 attached to the nozzle cylinders 10.
The nozzle cylinder 10 includes a communication hole 12 that communicates with the flexible hose 8, a nozzle body insertion hole 13 that communicates with the communication hole 12, and a rear end portion of the nozzle cylinder 10. The formed connecting portion 14 of the flexible hose 8, the mounting ring 16 screwed with the threaded portion 15 formed on the outer peripheral portion of the distal end of the nozzle cylinder 10, and the nozzle formed on the nozzle cylinder 10. It is composed of an air supply pipe mounting portion 17 that communicates with the inside of the main body insertion hole 13.

The nozzle body 11 is mounted in the nozzle body insertion hole 13 of the nozzle cylinder 10 so as to have a space portion 18 at the outer peripheral portion thereof, and an injection hole 19 which communicates with the communication hole 12 of the nozzle cylinder 10 is substantially formed. A ring-shaped recess 20 is formed in the outer peripheral portion of the center, and a plurality of members are formed in an inclined state so that the recess 20 and the injection hole 19 communicate with each other and the coating material passing through the nozzle body 11 is rotated by the passage of air. Air supply holes 21, 21 and 21 are formed.

Reference numerals 22, 22, 22 denote the nozzles 9, 9, 9
Is an air supply pipe equipped with opening / closing valves 23, 23, 23 attached to the air supply pipe attachment parts 17, 17, 17 of the air supply pipes 22, 22, 22 respectively. It is connected to the branch hoses 26, 26, 26 that are connected via.

Reference numeral 27 is a tape-shaped connecting tool for connecting the nozzles 9 and 9 so that they can be held and operated by hand.

The coating material spray gun 28 having the above structure is connected to the three coating material supply pipes 1, 1, 1 and the discharge pipes 3, 3, 3 of the coating material supply devices 2, 2, 2 respectively. Air supply hose 2 to the air supply pipes 22, 22, 22
The branch hoses 26, 26, 26 connected to No. 4 are connected.

Next, the fixture 5 is attached to the waist of the worker,
Holding the nozzles 9, 9, 9 which are integrally attached by the connector 27 by hand, and opening / closing valves 4, 4, 4 of the coating material supply pipes 1, 1, 1
The air supply pipes 22, 22, 2
When the on-off valves 23, 23, 23 of No. 2 are opened and air is flowed, the air is blown by the nozzles 9, 9, 9.
Nozzle body insertion holes 13, 13, 13 of No. 10, air supply holes 21, 21, 21 of nozzle bodies 11, 11, 11 and injection holes 19, 19, 19 are passed through and jetted outward from the tip. Therefore, the coating material is sucked from the coating material supply pipes 1, 1, 1 through the communication holes 12, 12, 12 of the nozzles 9, 9, 9 and the flexible hoses 8, 8, 8 and the nozzle body 1
The injection holes 1, 19, 11 are ejected outward from the tip end portions of the injection holes 19, 19, 19.

[0017]

Different Embodiments of the Invention Next, different embodiments of the present invention shown in FIGS. 8 to 16 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those of the first embodiment of the present invention are denoted by the same reference numerals, and duplicate description will be omitted.

The second embodiment of the present invention shown in FIGS. 8 to 10 is mainly different from the first embodiment of the present invention in that the two coating material supply pipes 1 and 1 are flexible. Since the nozzles 9 and 9 are attached via the flexible hoses 8 and 8, the coating material spray gun 28A using the two nozzles 9 and 9 as described above can be used in the first embodiment of the present invention. The same effect as the form can be obtained.

The third embodiment of the present invention shown in FIGS. 11 to 13 is mainly different from the first embodiment of the present invention in that the coating material supply pipes 1, 1, 1 Even if the coating material spray gun 28B configured in this way is the same as that of the first embodiment of the present invention, a vest-shaped mounting tool 5A that can be mounted so as to be supported on the shoulder is used. The effect is obtained.

The fourth embodiment of the present invention shown in FIGS. 14 to 16 is mainly different from the first embodiment of the present invention in nozzles 9A, 9A and 9A.
A, 9A and 9A are nozzle holes 10A, 10A and 10A in which the injection holes 19, 19 and 19 are formed.
An air outlet 29 is provided in the substantially central part near the tip of 9, 19.
Air supply pipes 22A, 22 where 29, 29 are located
A and 22A are attached, and a coating material spray gun 28 using the nozzles 19A, 19A and 19A thus formed
Even with C, the same operational effect as that of the first embodiment of the present invention can be obtained.

[0021]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) At least two coating material supply pipes each having an opening / closing valve connected to the discharge pipe of the coating material supply device, and a body attached to the at least two coating material supply pipes. A fixture that can be attached, nozzles connected to the at least two or more coating material supply pipes via flexible hoses, and spraying coating material from the nozzles respectively attached to these nozzles Since it is composed of the air supply hose having the opening / closing valve and the connecting tool for connecting the at least two or more nozzles, it is possible to carry out the spraying work while holding the lightweight nozzle portion by hand. Therefore, the spraying operation of the coating material is easy, and the uniform and uniform spraying operation of the coating material can be performed.

(2) According to the above (1), since the nozzle is connected to the coating material supply pipe via the flexible hose, the operation of moving the nozzle can be easily performed.

(3) According to the above (1), since the heavy coating material supply pipe can be attached to the body of the worker by the mounting tool, the worker can easily move during the spraying operation of the coating material and can be performed easily. be able to.

(4) According to the above (1), since the structure is simple, it can be easily implemented.

(5) Claims 2, 3, and 4 also include the above (1) to
The same effect as (4) can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a usage state according to a first embodiment of this invention.

FIG. 2 is a partially omitted plan view of the first embodiment of the present invention.

FIG. 3 is a side view with a part omitted of the first embodiment of the present invention.

FIG. 4 is a partially cutaway side view of the first embodiment of the present invention.

FIG. 5 is a side view of the nozzle portion according to the first embodiment of the present invention.

FIG. 6 is a sectional view of a nozzle portion according to the first embodiment of the present invention.

FIG. 7 is an enlarged sectional view taken along line 7-7 in FIG. 6;

FIG. 8 is an explanatory diagram of a use state according to the second embodiment of the present invention.

FIG. 9 is a partially omitted plan view of the second embodiment of the present invention.

FIG. 10 is a partially cutaway side view of the second embodiment of the present invention.

FIG. 11 is an explanatory diagram of a usage state of the third embodiment of the present invention.

FIG. 12 is a partially omitted plan view of the third embodiment of the present invention.

FIG. 13 is a partially omitted side view of the third embodiment of the present invention.

FIG. 14 is an explanatory diagram of a usage state according to the fourth embodiment of the present invention.

FIG. 15 is a partially cutaway side view of the fourth embodiment of the present invention.

FIG. 16 is a cross-sectional view of a nozzle portion according to the fourth embodiment of the present invention.

[Explanation of symbols]

 1: Coating material supply pipe, 2: Coating material supply device, 3: Discharge pipe, 4: Open / close valve, 5, 5A: Fixture, 6: Belt, 7: Fixed belt, 8: Flexible hose, 9, 9A : Nozzle, 10, 10A: Nozzle cylinder, 11: Nozzle body, 12: Communication hole, 13: Nozzle body insertion hole, 14: Connection part, 15: Screw part, 16: Mounting ring, 17: Air supply pipe mounting part, 18: Space part, 19: Injection hole, 20: Ring-shaped recessed part, 21: Air supply hole, 22, 22A: Air supply pipe, 23: Open / close valve, 24: Air supply hose, 25: Branch tool, 26: Branch Hose, 27: Connection tool, 28, 28A, 28B, 28C: Coating material spray gun, 29: Air outlet.

Claims (4)

[Claims] 1. At least two coating material supply pipes each having an on-off valve connected to a discharge pipe of the coating material supply device, and attached to a body attached to the at least two coating material supply pipes. With a fixture that can
Air supply including nozzles connected to the at least two or more coating material supply pipes via flexible hoses, and on-off valves for spraying the coating material from the nozzles attached to these nozzles, respectively. A coating material spray gun comprising a hose and a connector for connecting the at least two nozzles. 2. At least two coating material supply pipes each having an on-off valve connected to a discharge pipe of the coating material supply device, and at least two attached to the at least two coating material supply pipes. A belt-like fixture for attaching one or more coating material supply pipes to the waist,
Nozzles connected to each of the at least one coating material supply pipe via a flexible hose, and an air supply hose equipped with an on-off valve for spraying the coating material from the nozzles respectively attached to these nozzles, A coating material spraying gun, comprising: a connector for connecting at least two nozzles. 3. At least two coating material supply pipes each having an on-off valve connected to a discharge pipe of the coating material supply device, and at least two attached to the at least two coating material supply pipes. A fixture capable of suspending one or more coating material supply pipes from the shoulder, a nozzle connected to each of the at least two coating material supply pipes via a flexible hose, and a nozzle attached to each of these nozzles. A coating material spray gun, comprising: an air supply hose having an on-off valve for spraying coating material from the nozzle, and a connector for connecting at least two or more nozzles. 4. A coating material supply pipe having three on-off valves each connected to a discharge pipe of the coating material supply device, and a fixture which is attached to the body and is attached to these coating material supply pipes. , Three nozzles fixed to each of the three coating material supply pipes via a flexible hose so as to be positioned in a triangular shape, and the nozzles respectively attached to the three nozzles. A coating material spray gun comprising: three air supply hoses each having an opening / closing valve for spraying a coating material; and a connecting tool for connecting the three nozzles.