JP6924508B2 - Spray gun adapter to attach the spray gun paint container - Google Patents

Description

The present invention relates to a paint container used for a spray gun used for spraying and painting a paint such as a color ink or an undercoat agent.

Paints such as color inks are sold to repair scratches on the exterior of automobiles. Such paints are painted with a brush or the like, but sometimes color unevenness occurs and it is not possible to paint cleanly. In addition, there are some that can be spray-painted with an aerosol that is a mixture of color ink and propellant, but dimethyl ether (DME) is often used as the propellant for aerosol, and dimethyl ether is mixed with an emulsion-based water-based paint. If this happens, the emulsified state may be broken and gelation may occur, making it impossible to spray properly.
Therefore, painting is also performed using a spray gun in which the propellant and the paint are in separate containers. The spray gun is equipped with, for example, a container containing color ink so that the air in the aerosol can can be sprayed together with the color ink in a mist form for painting.

Conventional spray guns include, for example, a cylinder filled with compressed gas, a gas passage that guides the compressed gas to the outside of the cylinder, and an air supply / shutoff of the compressed gas by moving backward / forward by being interposed on the outlet side of the gas passage. It is equipped with a main body having a valve that is normally held in a shut-off state, and a holder that is attached to the cylinder. An operation head that moves the valve backward and forward, a gas nozzle that is connected to this operation head and communicates with the outlet of the valve, a paint nozzle whose tip is positioned in a cross shape near the tip of this gas nozzle, and an inlet of this paint nozzle. A simple spray gun has been developed, characterized in that a joint is provided, and the opening at the tip of a paint container containing paint is detachably attached to the joint (Patent Document 1 below). reference).
This spray gun eliminates the variation in repair accuracy due to individual differences by eliminating the need for relatively advanced painting skills, and makes it possible to easily perform high-precision repairs that satisfy all repairers.

Further, as an invention relating to a spray gun, for example, a suction nozzle for generating a suction force in an internal passage by a negative pressure action generated by an injection air flow is provided in a cylindrical head portion whose upper end is closed, and this suction is provided. A spray gun adapter used for a spray gun in which a raising nozzle includes a liquid spout that opens on the outside of the head portion and a holder provided with a suction passage connection port provided inside the head portion, and is a liquid. A suction passage connection provided in a container mounting portion to which the mouth portion of the container is mounted, a tubular portion provided in the container mounting portion and inserted into the head portion, and a partition wall portion separating the container mounting portion and the tubular portion. A connecting cylinder having a tube connection port to which a liquid outlet connected to the mouth and a suction tube for sucking up the liquid stored in the liquid container connected to the liquid outlet and attached to the container mounting portion are connected. The adapter body is provided with, and a attachment / detachment mechanism for attaching / detaching the adapter body to / from the head portion. By attaching the adapter body to the holder via the attachment / detachment mechanism, the tubular portion becomes the head portion. A spray gun adapter has been developed that is inserted into the pipe and is configured so that the liquid outlet of the connection cylinder portion is connected to the suction passage connection port (see Patent Document 2 below).
This spray gun adapter is designed so that color mixing can be prevented even if liquid containers of different colors of paint are repeatedly painted while being replaced with respect to the head portion.

Japanese Unexamined Patent Publication No. 10-305243 Japanese Unexamined Patent Publication No. 2016-124583

The spray gun is designed so that even people without painting skills can paint beautifully. By purchasing color ink of the required color and attaching the paint container in which the ink is injected to the spray gun, each color can be easily applied. Can be painted on.
However, a small amount of ink is often sufficient for repairing scratches on automobiles, and the excess ink is sometimes stored by covering the paint container. When stored for a long period of time, the solvent gradually leaked even if the lid was closed, making it unusable as ink and sometimes having to be discarded.

Therefore, an object of the present invention is to provide a paint container capable of storing paint such as ink used for a spray gun for a long period of time and easily mounting the paint container on the spray gun, and further, mounting the paint container. It is also to provide an adapter for a spray gun that can be used. Emulsion-based water-based paint can also be preferably used for this spray gun.

One form of the spray gun adapter of the present invention includes a main body for storing paint, an inner plug attached to the edge of the opening provided in the main body to cover the opening, and the inner plug provided on the inner plug. A lid that can block both the outflow hole through which the paint stored in the main body flows out, the air hole penetrating the inner plug, the outflow hole and the air hole, and is connected to the outer edge of the inner plug by a hinge portion. A paint container for a spray gun and an aerosol can provided with a portion and a cap covering the opening with the lid closed are attached, and the paint in the paint container is sucked up by the ejection of the aerosol can and a nozzle is provided. It is an adapter for a spray gun configured to eject from, and is characterized by including a lid fixing portion capable of inserting and fixing the lid portion in an open state.

Paint container upper kiss spray gun is inside plug covering the opening portion of the main body portion which paint is stored in its inside plug, a lid portion capable of closing the air hole for flowing the outlet hole and the air to flow out the paint Furthermore, since it is equipped with a cap that covers the opening of the main body with the lid closed, the main body can be sealed, the paint can be stored for a long period of time , and the paint container and aerosol can can be used. The spray gun adapter of the above-described form that can be attached is provided with a lid fixing portion that allows the lid portion of the paint container in the open state to be inserted and fixed, so that the lid portion of the paint container is stored and can be used as a spray gun. It doesn't get in the way when you use it.

In the paint container upper kiss spray gun, it is preferable to form the lid linearly.
By doing so, the air holes, the outflow holes, and the hinge portions are arranged in a line, and it becomes easy to close both of the two holes, and the opening / closing work of the lid portion becomes easy.

It is preferable that the spray gun adapter integrally includes an operation button that ejects the aerosol can when pressed.
By doing so, if the paint container and the aerosol can are attached to this adapter, it can be used as a spray gun, so that the preparatory work becomes easy.

It is a perspective view which showed an example of the spray gun which attached the paint container for the spray gun of one Embodiment of this invention. FIG. 5 is an enlarged cross-sectional view of the vicinity of the cap of the paint container of FIG. FIG. 5 is a partially enlarged perspective view of the paint container of FIG. 1 with the lid open. It is a figure which showed the state which attached the paint container and the cylinder to the adapter for the spray gun of one Embodiment of this invention. It is a figure which showed the state which the lid part of the paint container was stored in the adapter for the spray gun of FIG. It is a figure which showed the state which attached the paint container and the cylinder to the adapter for the spray gun of another embodiment of this invention.

Hereinafter, an embodiment of the paint container for a spray gun and the adapter for a spray gun of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the spray gun paint container 1 according to the embodiment of the present invention can be used as a spray gun 4 by being attached to a spray gun adapter 2 together with a cylinder 3.

As shown in FIG. 2, the paint container 1 for a spray gun is provided with an opening 12 at the upper part of the main body 11, and is provided with an inner plug 13 and a cap 14 for covering the opening 12.

The main body 11 has a bottomed cylindrical shape with a slightly rounded upper shoulder, and has a neck 11a protruding from the upper part in a cylindrical shape having a diameter smaller than that of the main body 11, and a portion surrounded by the upper edge thereof is provided. It is a circular opening 12. A screw portion 11b that spirally protrudes outward is provided on the outer surface of the neck portion 11a.
The main body 11 is not particularly limited, but can accommodate a liquid substance such as a color ink or an undercoating agent of each color, and preferably contains a color ink for automobile painting. Further, either a water-based paint or an oil-based paint may be accommodated.

The opening 12 is covered with an inner plug 13 as shown in FIG. 2 or FIG.
The inner plug 13 includes a circular flat plate-shaped covering surface portion 13a that covers the opening 12, and a wall surface portion 13b that rises vertically from the peripheral edge thereof, and is detachably attached to the upper end portion of the wall surface portion 13b and the upper edge portion of the neck portion 11a. A mounting portion 13c that can be mounted is provided. The mounting portion 13c has a U-shaped cross section with an opening at the bottom so that the mounting portion 13c can be hermetically fitted into the upper edge portion of the neck portion 11a.

The coated surface portion 13a is provided with an outflow hole 13d and an air hole 13e.
The outflow hole 13d is provided near the center of the covering surface portion 13a, and is a hole for letting out the paint stored in the main body portion 11. A connecting portion 13f for connecting the paint passage portion 22c of the adapter 2 described later is formed on the upper side of the outflow hole 13d. The connecting portion 13f has a cylindrical shape and is formed so that the inner surface side is narrowed downward. Below the outflow hole 13d, a cylindrical connecting portion 13g for connecting the tube 15 extending inside the main body portion 11 is formed. The tube 15 has a length extending to the vicinity of the bottom surface of the main body 11.

The air hole 13e is provided at one place around the outflow hole 13d, and is a hole for allowing air to flow in and out. The upper side of the air hole 13e is projected upward in a cylindrical shape so as to be substantially the same height as the connecting portion 13f.

The inner plug 13 is provided with a lid portion 16 capable of closing the connecting hole 13d and the air hole 13e.
As shown in FIG. 2, the lid portion 16 is formed in a stepped elongated plate shape in which the tip side is located downward in the closed state, and can be bent freely near the outer peripheral edge of the inner plug 13 via the hinge portion 16a. It is connected. A first closing portion 16b is formed in the vicinity of the tip portion of the lid portion 16 so as to project downward in a cylindrical or truncated cone shape, and the air hole 13e is closed so that the air hole 13e can be closed in a sealed manner. A second closed portion 16c that protrudes downward in a cylindrical or truncated cone shape is formed closer to the base end than the first closed portion 16b, and the outflow hole 13d is closed so that the outflow hole 13d can be closed in a sealed manner. be.
The outflow holes 13d, the air holes 13e, and the hinge portions 16a are preferably arranged at positions in a row, whereby the lid portion 16 can be formed in a straight line and can be easily opened and closed.

The opening 12 and the inner plug 13 can be covered with the cap 14.
The cap 14 has a cylindrical shape having a circular flat top surface, and has a threaded portion 14a that spirally protrudes inward on the inner surface, and is screwed with the threaded portion 11b of the neck portion 11a to form an opening 12. It is designed so that it can be covered. The cap 14 is designed so as not to interfere with the lid 16 in a state where the flow hole 13d and the air hole 13e are closed.

As shown in FIG. 4, the spray gun adapter 2 is formed in a thick plate shape having both ends bulging in a circular shape, and a spray gun paint container 1 can be attached to the front end side and a cylinder 3 can be attached to the rear end side. It is done like this. Inside, a ventilation passage 21 having a through hole extending horizontally from the rear end side to the front end side is formed so that the air discharged from the cylinder 3 can flow.

A container mounting portion 22 on which the spray gun paint container 1 can be mounted is provided on the tip end side of the spray gun adapter 2. The container mounting portion 22 is provided with a peripheral wall surface 22a that protrudes downward, and a screw portion 22b that spirally protrudes inward is formed on the inner surface thereof. The screw portion 22b is screwed with the screw portion 11b of the neck portion 11a of the container 1 so that it can be attached to the main body portion 11 of the container 1.
Near the center of the container mounting portion 22, a paint passage portion 22c that protrudes downward in a cylindrical shape is provided, and the lower end portion is inserted into the distribution hole 13d. The paint passage portion 22c is connected to the air passage 21 so that the paint in the container 1 flows into the air passage 21.

A cylinder mounting portion 23 to which the cylinder 3 can be mounted is provided on the rear end side of the spray gun adapter 2. The cylinder mounting portion 23 includes a peripheral wall surface 23a protruding downward, and an engaging portion 23b protruding inward is formed at the lower end portion thereof. The engaging portion 23b engages with the periphery of the mounting cup 31 of the cylinder 3 so that the cylinder 3 can be mounted.

An air passage portion 23c that protrudes downward in a cylindrical shape is provided near the center of the cylinder mounting portion 23, and the stem 32 of the cylinder 3 is inserted into the lower end portion. The air passage portion 23c is connected to the ventilation passage 21 so that the air discharged from the cylinder 3 flows into the ventilation passage 21.

Above the cylinder mounting portion 23, an operation button 24 formed by making a notch in the upper surface 2a of the adapter 2 is provided. The operation button 24 is integrally formed with the adapter 2, and is formed by making a notch in a circular shape, and also makes a notch in parallel from the rear end side to the tip side of the adapter 2 and bends in the vertical direction. I'm trying to do it. By pressing the operation button 24, the stem 32 of the cylinder 3 can be pushed down to eject air.

On the lower surface side of the adapter 2, a lid fixing portion 25 formed by cutting out a part of the peripheral wall surface 22a of the container mounting portion 22 and the peripheral wall surface 23a of the cylinder mounting portion 23 from the lower side is formed. The lid fixing portion 25 is housed in a state where the lid portion 16 of the container 1 is opened, and can be fixed in a state where the container 1 is attached to the adapter 2.

A columnar nozzle 26 having a fine through hole is fitted in the tip of the air passage 21 so that the paint can be sprayed.

As the cylinder 3, an aerosol can or the like that is filled with air and ejects air by pressing the stem 32 can be used, and a commercially available product such as a so-called air duster can be used.

A spray gun paint container 1 and a cylinder 3 can be attached to the spray gun adapter 2 and used as a spray gun 4.
More specifically, for example, first, the spray gun paint container 1 is attached to the spray gun adapter 2. The cap 14 is turned to remove it from the main body 11, the tip of the lid 16 is picked up to open the flow hole 13d and the air hole 13e, the lid 16 is housed in the lid fixing portion 25, and the neck 11a is placed in the container in this state. By rotating the main body 11 while inserting it into the mounting portion 22, the screw portion 11b and the screw portion 22b are screwed together, and the main body portion 11 can be mounted on the adapter 2. At this time, the connecting portion 13f and the paint passage portion 22c are connected.

Next, by inserting the cylinder 3 into the cylinder mounting portion 23 of the adapter 2 and engaging the engaging portion 23b around the mounting cup 31, the cylinder 3 can be mounted to form the spray gun 4.
By pressing the operation button 24, the stem 32 of the cylinder 3 moves downward, the air filled in the cylinder 3 is released, passes through the air passage 21 via the air passage portion 23c, and is injected from the nozzle 26. Will be done. At this time, since the upper side of the paint passage portion 22c becomes negative pressure due to the air flowing through the ventilation passage 21, the paint in the main body portion 11 is pressed by the atmospheric pressure and passes through the tube 15, the outflow hole 13d and the air passage portion 23c. It is ejected from the nozzle 26 together with the air flowing through the air passage 21.

To remove the main body 11, the main body 11 is rotated in the direction opposite to the mounting, the screw portion 11b and the screw portion 22b are unscrewed, and the main body portion 11 is removed from the container mounting portion 22. The lid portion 16 is rotated by the hinge portion 16a to close the outflow hole 13d and the air hole 13e by the second closing portion 16c and the first closing portion 16b, respectively, and the lid portion 16 is closed by the lid portion 16. Then, the cap 14 can be rotated to screw the screw portion 14a and the screw portion 11b, the cap 14 can be attached, and the paint container 1 for the spray gun can be sealed.

In this way, the paint container 1 for the spray gun has an inner plug 13 that covers the opening 12 of the main body 11 in which the paint is stored, an outflow hole 13d provided in the inner plug 13 that allows the paint to flow out, and air to flow in. Since it is provided with a lid portion 16 capable of closing the air hole 13e and a cap 14 that covers the opening portion 12 of the main body portion 11 with the lid portion 16 closed, the main body portion 11 is sealed when not in use. And the paint inside can be stored for a long time.

Further, since the spray gun adapter 2 is provided with a lid fixing portion 25 that allows the lid portion 16 of the paint container 1 to be fixed in an open state, it does not get in the way when used as the spray gun 4.
Even if an emulsion-based water-based paint is used as the paint, the spray gun 4 is used without damaging the emulsified state of the emulsion-based water-based paint because a propellant such as dimethyl ether (DME) does not mix in the paint container 1. be able to.

Although the operation button 24 is integrally formed in the spray gun adapter 2 of the above form, the triangular plate-shaped operation button 24x is separately formed as in the other form of the spray gun adapter 2X shown in FIG. May be formed as. Even in such a form, the air in the cylinder 3 is released by mounting the main body portion 11 of the container mounting portion 22x, mounting the cylinder 3 of the cylinder mounting portion 23x, and pressing the operation button 24x. Similarly, it will be injected through the air passage 21x.

The configuration of the above embodiment is not mentioned as limiting the present invention, and can be changed as long as the technical object is common, and the present invention includes such a change.

1 Paint container for spray gun 11 Main body 11a Neck 11b Thread 12 Opening 13 Inner plug 13a Covered surface 13b Wall surface 13c Mounting 13d Outflow hole 13e Air hole 13f Connecting part 14 Cap 14a Threaded part 15 Tube 16 Lid part 16a Hinge Part 16b First closure 16c Second closure 2 Spray gun adapter 2a Top surface 21 Ventilation passage 22 Container mounting part 22a Peripheral wall surface 22b Screw part 22c Paint passage part 23 Cylinder mounting part 23a Peripheral wall surface 23b Engagement part 24 Operation button 25 Closure fixing part 26 Nozzle 3 Cylinder 31 Mounting cup 32 Stem 4 Spray gun

Claims (4)

A main body for storing paint, an inner plug attached to the edge of an opening provided in the main body to cover the opening, and an outflow hole provided in the inner plug to allow the paint stored in the main body to flow out. And the air hole penetrating the inner plug, the outflow hole and the air hole can be closed together, the lid portion connected to the outer edge portion of the inner plug by a hinge portion, and the lid portion closed. A spray gun adapter that is equipped with a paint container for a spray gun and an aerosol can provided with a cap that covers the opening, and is configured to suck up the paint in the paint container and spray it from a nozzle by ejecting the aerosol can. An adapter for a spray gun equipped with a lid fixing part that allows the lid part to be inserted and fixed in an open state. The spray gun adapter according to claim 1, wherein the lid portion of the paint container is formed in a straight line. The adapter for a spray gun according to claim 1 or 2 , further comprising an operation button integrally provided with an operation button for ejecting the aerosol can when pressed. A spray gun comprising the spray gun adapter according to any one of claims 1 to 3.

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