JP3116288U - Spray gun container connection fitting - Google Patents

Abstract

An object of the present invention is to provide a joint that can easily change and fix a paint container at any angle parallel to the spray gun spraying axis direction, expanding the degree of freedom of painting work, and securely holding the paint container at a predetermined angle. it can.
In a joint for connecting a paint container to a spray gun so as to be able to swing in a direction crossing the spraying direction, the joint has a threaded portion attached to the spray gun in a direction crossing the spraying direction of the spray gun. And a connecting pipe that is coaxially connected to the connecting part and crosses the paint container and has a threaded part, so that the connecting part of the spray gun and the connecting pipe of the paint container can be rotated. A container connection joint for a spray gun, which is connected to the joint portion and includes an angle holding mechanism for holding the paint container at a predetermined angle.
[Selection] Figure 2

Description

This device is a spray gun for painting, especially spray guns with small small area and small amount of paint. The angle of the container can be easily changed, and the container of the spray gun that can flexibly respond to the change of spraying direction. Concerning connection joints.

In general, this type of spray gun is configured such that a container in which paint is placed is attached to a paint supply port of the spray gun, and sucks up the paint by using the suction force generated by the sprayed air and ejects it from the paint nozzle. Usually, since the paint container is fixed almost orthogonally to the spray gun, the spray gun is limited to spraying in a state of being almost horizontal, that is, a paint surface in a state of being close to a vertical surface.

However, if the position of the object to be coated cannot be changed easily, it is necessary to change the spraying direction of the spray gun. For this purpose, a container is provided with a paint container mounting joint in the lateral direction of the spray gun, and an L-shaped passage is formed. A spray gun with a joint on the side can be seen. In such a spray gun, the joint portion is rotatable, the container can be fixed at a normal position regardless of the spray angle of the spray gun, and the degree of freedom in the spray direction is obtained.

On the other hand, in Japanese Patent Application Laid-Open No. 2003-170087 (see Patent Document 1), the container can be securely attached to the spray gun with a single touch and easily changed to any angle parallel to the spray gun spray axis direction. Providing joints that can be fixed, expanding the degree of freedom of painting work, enabling speeding up when changing colors, facilitating cleaning, and also allowing it to be used for gravity-based paint supply systems A spray gun container connection is shown.
Japanese Patent Laid-Open No. 2003-170087

By the way, in the former, the joint part of the spray gun is rotatable, the container can be fixed at a normal position regardless of the spray angle of the spray gun, and the degree of freedom in the spray direction is obtained. However, although the above joint has the advantage that it can be easily changed and fixed at any angle, the coupling of the joint is constituted by a simple screw, so that the container loosens and falls to the side of the object to be coated without permission. There were drawbacks.
The latter also has a common point that the coupling is constituted by a simple screw. Similarly, there is a drawback that the container is loosened and the container falls to the object to be coated.

This device provides a joint that allows the paint container to be easily changed and fixed at any angle parallel to the spray gun spray axis direction, increasing the degree of freedom of painting work and ensuring that the paint container is at a predetermined angle. It can be held.

The container connection joint of the spray gun of this invention is a joint for connecting the paint container to the spray gun so as to be able to swing in the direction intersecting the spray direction, and the joint is spray gun in the direction intersecting the spray direction of the spray gun. A connecting portion having a screw portion attached to the connecting portion, and a connecting pipe having a screw portion that is coaxial with the connecting portion and is attached in a direction intersecting the paint container. And a connecting pipe of the paint container are rotatably coupled, and an angle holding mechanism for holding the paint container at a predetermined angle is provided at the joint portion.

The container connection joint of the spray gun according to the present invention includes an angle holding mechanism provided at the joint portion, and a male screw provided at the connecting portion and a female screw portion rotatably attached to the connection pipe end of the paint container. A coupling means, a washer that is held on the outer periphery of the connection pipe and locked to the front end of the male screw part, and a coil shape interposed between the washer and the inner wall of the female screw part. And the paint container can be swung, and can be held at a predetermined angle by the coiled spring.

As described above, according to the container connection joint of the spray gun according to the present invention, not only is the paint container connected so as to be able to swing, but the built-in angle holding mechanism reliably holds the paint container at a predetermined angle. There is no longer a risk that the paint container will fall and adhere to the object to be coated, and the paint will be peeled off or damaged.
Therefore, there is no need to worry about causing unrecoverable troubles, such as when the paint container falls and adheres to the object to be coated, and the paint is peeled off or damaged. It became easy and reliable.

In addition, the container connection joint of the spray gun according to this device has a simple structure in which an angle holding mechanism is built in the joint part, and can be sprayed in any direction without being limited to the painting site, greatly expanding the range of use. be able to.

Embodiments of a spray gun container connection joint according to the present invention will be described below in detail with reference to the accompanying drawings.
1 is a side view showing an embodiment of a container connection joint of a spray gun according to the present invention, FIG. 2 is a front view of the joint part in an exploded state, and FIG. 3 is an enlarged sectional view of the joint part.

1 to 3, the spray gun body 11 is a well-known spray gun, and the structure itself is not limited. However, the paint supply port is on the side surface of the spray gun body 11, and the paint container 12 is placed in a direction intersecting the spray axis. It is connected so that it can swing.
In other words, the joint 13 is attached to the joint so as to protrude from the spray gun body 11 in a direction intersecting the spray direction (spray axis) of the spray gun body 11. Further, a connecting pipe 14 is attached to the lower end of the paint container 12 in the direction intersecting with the paint container 12 coaxially with the connecting portion 13.

The joint includes a connecting means including a male screw 15 provided on the outer periphery of the connecting portion 13 and a female screw portion 16 rotatably attached to an end portion of the connecting pipe 14 of the paint container 12. The connecting portion 13 of the spray gun body 11 and the connecting pipe 14 of the paint container 12 are rotatably connected.
At the same time, an angle holding mechanism 17 for holding the paint container 12 at a predetermined angle is attached to the joint portion.

And the angle holding mechanism 17 provided in the joint part is a connection comprising a male screw 15 provided in the connection part 13 and a female screw part 16 rotatably attached to the end of the connection pipe 14 of the paint container 12. And a washer 18 that is held on the outer periphery of the connection pipe 14 built in the joint portion and is engaged with the tip of the male screw 15, and a coil interposed between the washer 18 and the inner wall of the connection pipe 14 It is comprised with the spring 19 of a shape. Reference numeral 20 denotes a packing attached to the inclined contact portion between the connecting portion 13 and the connecting pipe 14.

Therefore, the connection state between the connection portion 13 and the connection tube 14 is maintained by the male screw 15 provided in the connection portion 13 and the female screw portion 16 attached to the end portion of the connection tube 14, and the coil-shaped spring 19. By pressing the end of the connecting portion 13 and the inner back wall of the female screw portion 16, the space between the connecting portion 13 and the connecting pipe 14 is always pressurized. That is, the paint container 12 can be held at a predetermined angle by the coiled spring 19.
In the figure, reference numeral 21 denotes a plate-like fixing screw attached to the male screw 15 provided in the connecting portion 13. The female screw portion 16 can be fixed at a predetermined position by screwing it with the female screw portion 16. it can.

Of course, the joint can be disassembled by loosening the fixing screw 21 from the end of the female screw part 16 and removing the female screw part 16 from the male screw 15 provided on the connecting part 13. It can be easily replaced.

Needless to say, this device can be effectively applied not only to a spray gun for painting but also to an angle holding mechanism for a container attached to a spray gun for various uses for spraying.

It is a side view which shows one Example of the container connection coupling of the spray gun of this invention. It is a front view of the state which decomposed | disassembled the joint part. It is an expanded sectional view of a joint part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Spray gun main body 12 Paint container 13 Connection part 14 Connection pipe 15 Male thread 16 Female thread part 17 Angle holding mechanism 18 Washer 19 Coiled spring 20 Packing 21 Fixing screw

Claims (2)

In the joint for connecting the paint container to the spray gun so as to be able to swing in the direction intersecting with the spraying direction, the joint has a connecting part having a screw part attached to the spray gun in the direction intersecting with the spraying direction of the spray gun; It is composed of a connecting pipe that is coaxial with the connecting portion and that is attached in a direction crossing the paint container and has a threaded portion, so that the connecting portion of the spray gun and the connecting tube of the paint container can be rotated. A spray gun container connection joint, wherein the joint part is provided with an angle holding mechanism for holding the paint container at a predetermined angle at the joint part. In the female screw portion, the angle holding mechanism provided in the joint portion includes a male screw provided in the connecting portion and a female screw portion rotatably attached to the connection pipe end portion of the paint container. A washer held on the outer periphery of the connecting pipe and locked to the front end of the male threaded portion, and a coiled spring interposed between the washer and the inner wall of the female threaded portion. 2. The spray gun container connection joint according to claim 1, wherein the container can be swung and can be held at a predetermined angle by the coiled spring.

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