JP2015020125A - Hand spray gun and method for discharging cleaner composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spray gun tip used for a spray gun that can discharge a fluid in a favorable foamy state, a spray gun, and a method for discharging a cleaner composition.SOLUTION: A spray gun tip, mounted at the tip of a spray gun body equipped with a jet nozzle, comprises a cylindrical member that makes a fluid jetted out of a jet nozzle of a spray gun body pass through and a discharge port that discharges the fluid having passed through the cylindrical member, and is characterized in that the cylindrical member is a fluid channel equipped with a jet nozzle side opening into which the fluid flows from the jet nozzle side of the spray gun body and a discharge port side opening that jets the fluid out to the discharge port side to keep the discharge port integrated with the discharge port side opening of the cylindrical member, and in that the discharge port has a projection formed thereon that projects toward the inside of the discharge port from the starting point of an inner wall that forms the discharge port with an opening ratio of 45-75%.

Description

The present invention relates to a spray gun tip, a spray gun, and a method for discharging a cleaning composition.

As a spray gun that sucks the liquid in the container and sprays it from the nozzle, the piston that is integrated with the nozzle part is pushed down by pushing the trigger (pushing up) and the liquid in the cylinder is ejected from the nozzle part. The spray gun is known.

Furthermore, in recent years, in order to improve the fixability of the liquid to the object to which the liquid is applied, efforts have been made to eject the liquid in the form of bubbles.

For example, there is provided a foam ejection dispenser (spray gun) having a peripheral wall surface for colliding liquid ejected from a nozzle hole and a cylindrical through-hole formed by the peripheral wall surface and capable of ejecting a foam-like liquid. Known (for example, Patent Document 1).

JP 2007-289870 A

However, the spray gun described in Patent Document 1 has a problem in that when a cleaning composition having a high viscosity is discharged, the cleaning composition scatters without being foamed and cannot be efficiently discharged onto an object. It was. In addition, after the cleaning composition is discharged, a droplet of the cleaning composition drips from the tip of the spray gun and adheres to the operator's hand, etc., leading to a reduction in worker safety and workability. there were.

The present invention has been made to solve these problems, and includes a tip for a spray gun, a spray gun, and a cleaning composition used for a spray gun capable of discharging a fluid in a good foam state. An object is to provide a discharge method.

The tip for a spray gun of the present invention is a tip for a spray gun that is attached to the tip of a spray gun main body having an injection port, and the tip for the spray gun is a fluid ejected from an injection port of the spray gun main body. And a discharge port for discharging the fluid that has passed through the cylindrical member, the cylindrical member including an injection port side opening through which fluid flows from the injection port side of the spray gun body and the above A fluid flow path having a discharge port side opening for allowing fluid to flow out to the discharge port side, and the discharge port and the discharge port side opening of the tubular member are integrated, and the discharge port Is formed with a protruding portion that protrudes toward the inside of the discharge port starting from an inner wall that forms the discharge port, and the opening ratio of the discharge port is 45 to 75%. .

The tip for a spray gun of the present invention is a tip for a spray gun that is attached to the tip of a spray gun main body having an injection port, and the tip for the spray gun is a fluid ejected from an injection port of the spray gun main body. It is a fluid flow path provided with a cylindrical member that allows the fluid to pass through and a discharge port that discharges the fluid that has passed through the cylindrical member. Therefore, the fluid sprayed from the spray port of the spray gun body flows into the tubular member from the spray port side opening of the tubular member, and flows out of the tubular member at the discharge port side opening. The fluid ejected from the spray port of the spray gun body collides with the inner wall constituting the tubular member when passing through the tubular member, and becomes a rough foam.
Furthermore, the discharge port side opening of the cylindrical member is integrated with the discharge port, and the discharge port is formed with a protruding portion that protrudes toward the inside of the discharge port, starting from the inner wall forming the discharge port. ing.
Then, the fluid that has passed through the tubular member and has become a rough bubble shape collides with a protruding portion that protrudes from the discharge port, thereby forming a fine bubble shape.
In this way, fine bubbles are formed. At this time, when the opening ratio of the discharge port is 45 to 75%, the fluid ejected from the spray gun body can be discharged in a good foam shape.

In the spray gun tip of the present invention, when the spray gun tip is attached to the tip of the spray gun body, the longitudinal length of the cylindrical member is such that the spray gun body sprays from the discharge port. It is desirable that the discharge port side opening is 60 to 100% with respect to the distance to the mouth.
With the above configuration, most of the fluid ejected from the ejection port of the spray gun main body can pass through the inside of the cylindrical member, so that the fluid is likely to be a rough foam. Fine fluid bubbles are formed when the fluid in the form of such rough bubbles collides with the protrusions formed at the discharge ports. Therefore, it becomes easy to discharge the fluid jetted from the spray gun body in a better foam shape.
In the present specification, the longitudinal direction of the tubular member indicates a direction parallel to the direction in which the fluid ejected from the spray gun body passes through the tubular member.

Another aspect of the spray gun tip of the present invention is a spray gun tip attached to the tip of the spray gun main body provided with a cylindrical member integrated with a spray port of the spray gun main body, the spray gun The tip is provided with a discharge port that discharges the fluid that has been sprayed from the spray port of the spray gun body and passed through the cylindrical member, and the discharge port starts from the inner wall that forms the discharge port. A protrusion that protrudes toward the inside of the outlet is formed, and the opening ratio of the discharge port is 45 to 75%.

The spray gun tip is attached to the tip of the spray gun body provided with a cylindrical member integrated with the spray port of the spray gun body. Therefore, when the fluid sprayed from the spray port of the spray gun main body passes through the cylindrical member integrated with the spray port of the spray gun main body, it collides with the inner wall constituting the cylindrical member and becomes coarse foam. It becomes a shape.
The fluid that has become a rough foam shape by passing through the cylindrical member becomes a fine foam shape by colliding with a protruding portion protruding to the discharge port of the spray gun tip.
In this way, fine bubbles are formed. At this time, when the opening ratio of the discharge port is 45 to 75%, the fluid ejected from the spray gun body can be discharged in a good foam shape.

As another aspect of the tip for a spray gun of the present invention, it may further include a second cylindrical member integrated with the discharge port, and the second cylindrical member is integrated with the spray port of the spray gun body. A fluid flow path having a second injection port side opening through which fluid flows from the cylindrical member side and a second discharge port side opening through which fluid flows out to the discharge port side; The outlet and the second outlet side opening are integrated, and the outlet side of the cylindrical member integrated with the second outlet side opening of the second cylindrical member and the outlet of the spray gun body A continuous fluid flow path may be formed by contacting or approaching the opening.

With the above configuration, the second injection port side opening of the second cylindrical member and the discharge port side opening of the cylindrical member integrated with the injection port of the spray gun body contact or approach, A continuous fluid flow path is formed.
Therefore, when the fluid sprayed from the spray gun body passes through the continuous fluid flow path composed of the cylindrical member integrated with the spray port of the spray gun body and the second cylindrical member, Become. Further, since the second discharge port side opening is integrated with the discharge port, the coarse bubble-like fluid that has passed through the second cylindrical member collides with the protruding portion that protrudes to the discharge port, thereby forming a fine bubble shape. be able to.

In the spray gun tip of the present invention, it is desirable that the opening ratio of the discharge port is 50 to 70%. When the opening ratio of the discharge port is 50 to 70%, the fluid discharged from the discharge port can be made into a more favorable foam.

In the spray gun tip of the present invention, in the front view of the spray gun tip as viewed from the front toward the discharge port, the shape of the discharge port is circular and the diameter thereof is 4.0 to 6.0 mm. It is desirable.
In the front view of the spray gun tip when viewed from the front toward the discharge port, the shape of the discharge port is circular and the diameter is 4.0 to 6.0 mm, so that fluid scattering is prevented. In addition, it is possible to favorably inject the target object.

In the spray gun tip according to the present invention, it is preferable that the protruding portion partitions the discharge port into a plurality of regions.
When the discharge port is partitioned into a plurality of regions by the protrusion, the strength of the protrusion is improved.

In the tip for spray gun of the present invention, in the front view of the tip when viewed from the front toward the discharge port, the shape of the protruding portion is Y-shaped, and the width of the protruding portion is 0.6 to 1.2 mm. It is desirable that
In the front view when the chip is viewed from the front toward the discharge port, the shape of the protrusion is Y-shaped, and the width of the protrusion is 0.6 to 1.2 mm. When the fluid is discharged, it becomes easier to discharge into a better foam.

In the spray gun tip of the present invention, in the front view of the tip as viewed from the front toward the discharge port, the shape of the protrusion is a lattice shape, and the width of the protrusion is 0.4 to 1.2 mm. It is desirable to be.
In the front view of the chip as viewed from the front toward the discharge port, the shape of the protrusions is a lattice shape, and the width of the protrusions is 0.4 to 1.2 mm. When it is discharged, it becomes easier to discharge into a better foam.

Also, the spray gun of the present invention allows the fluid sprayed from the spray port of the spray gun body to pass through the cylindrical member and to be discharged from the spray port of the spray gun tip attached to the tip of the spray gun body. The cylindrical member includes an injection port side opening through which fluid flows from the spray port side of the spray gun body and a discharge port side from which fluid flows out to the discharge port side of the spray gun tip And a protrusion that protrudes toward the inside of the discharge port starting from an inner wall that forms the discharge port. Is formed, and the opening ratio of the discharge port is 45 to 75%.

In the spray gun of the present invention, the fluid ejected from the spray port of the spray gun body collides with the inner wall constituting the tubular member when passing through the tubular member, and becomes a rough foam. Then, the fluid that has passed through the cylindrical member and has become a rough bubble shape becomes a fine bubble shape by colliding with the protruding portion protruding to the discharge port.
In this way, fine bubbles are formed. At this time, when the opening ratio of the discharge port is 45 to 75%, the fluid ejected from the spray gun body can be discharged in a good foam shape.

In the spray gun of the present invention, the cylindrical member is integrated with the spray gun tip by integrating the discharge port of the spray gun tip and the outlet side opening of the cylindrical member. It is desirable.
With such a configuration, the fluid that has passed through the cylindrical member can be reliably collided with the inner wall of the cylindrical member. Therefore, it becomes easy to discharge the fluid jetted from the spray gun body in a better foam shape.

In the spray gun of the present invention, the length of the cylindrical member in the longitudinal direction is 60 to 100% starting from the discharge port side opening with respect to the distance from the discharge port to the spray port. desirable.
With the above configuration, most of the fluid ejected from the spray port of the spray gun body can pass through the cylindrical member, so that the fluid is likely to be a rough foam. Finer bubbles are formed when the fluid in the form of such rough bubbles collides with the projections formed at the discharge ports. Therefore, it becomes easy to discharge the fluid jetted from the spray gun body in a better foam shape.

In the spray gun of the present invention, the cylindrical member is integrated with the spray gun body by integrating the injection port of the spray gun body and the injection port side opening of the cylindrical member, It is desirable that the opening on the discharge port side of the cylindrical member is configured to come into contact with or approach the discharge port of the spray gun tip.
With the above configuration, when the fluid ejected from the spray port of the spray gun body passes through the cylindrical member integrated with the spray port of the spray gun body, it collides with the inner wall constituting the tubular member. It becomes a rough foam. The fluid that has become a rough foam shape by passing through the cylindrical member becomes a fine foam shape by colliding with a protruding portion protruding to the discharge port of the spray gun tip.
Therefore, it becomes easy to discharge the fluid jetted from the spray gun body in a good foam shape.

In the spray gun of the present invention, the cylindrical member includes a first cylindrical member integrated with the spray gun body, the first cylindrical port opening being integrated with the spray port of the spray gun body. A second cylindrical member integrated with the spray gun tip with a second discharge port side opening integrated with the discharge port of the spray gun tip, and in the first cylindrical member A first discharge port side opening which is an opening located on the opposite side to the first injection port side opening, and an opening located on the opposite side to the second discharge port side opening in the second tubular member. It is desirable that the first cylindrical member and the second cylindrical member form a continuous fluid flow path by contacting or approaching the second ejection opening side opening.
The first cylindrical member integrated with the spray gun main body and the second cylindrical member integrated with the discharge port of the spray gun tip include a first discharge port side opening and a second injection port side opening. A continuous fluid flow path is formed by contact or approach.
Therefore, the fluid sprayed from the spray gun body becomes a rough foam when passing through a continuous fluid flow path composed of the first cylindrical member and the second cylindrical member. Furthermore, since the second discharge port side opening of the second cylindrical member is integrated with the discharge port of the tip for the spray gun, the fluid that has become rough foam by passing through the continuous fluid flow path is discharged. A fine foam is formed by colliding with the protruding portion protruding to the outlet. Therefore, it becomes easy to discharge the fluid jetted from the spray gun body in a good foam shape.

In the spray gun of the present invention, it is desirable that the opening ratio of the discharge port is 50 to 70%.
When the opening ratio of the discharge port is 50 to 70%, the fluid discharged from the discharge port can be made into a more favorable foam.

In the spray gun of the present invention, in the front view of the spray gun body viewed from the front toward the discharge port, the shape of the discharge port is circular and the diameter thereof is 4.0 to 6.0 mm. desirable. When the shape of the discharge port is circular and the diameter thereof is 4.0 to 6.0 mm, the scattering of the fluid is prevented, and the injection onto the target object can be performed satisfactorily.

In the spray gun of the present invention, it is desirable that the protruding portion partitions the discharge port into a plurality of regions. When the discharge port is partitioned into a plurality of regions by the protrusion, the strength of the protrusion is improved.

In the spray gun of the present invention, in the front view of the spray gun viewed from the front toward the discharge port, the shape of the protrusion is Y-shaped, and the width of the protrusion is 0.6 to 1.2 mm. It is desirable that
In the front view of the spray gun as viewed from the front toward the discharge port, the shape of the protrusion is Y-shaped, and the width of the protrusion is 0.6 to 1.2 mm. When the fluid is discharged, it becomes easier to discharge it into a better foam.

In the spray gun of the present invention, in the front view when the spray gun is viewed from the front toward the discharge port, the shape of the protrusion is a lattice shape, and the width of the protrusion is 0.4 to 1.2 mm. It is desirable to be.
In the front view of the spray gun as viewed from the front toward the discharge port, the shape of the protrusions is a lattice shape, and the width of the protrusions is 0.4 to 1.2 mm. When the fluid is discharged, it becomes easier to discharge into a better foam.

The cleaning composition discharge method of the present invention is characterized in that the cleaning composition is discharged from a discharge port using the spray gun of the present invention.
By discharging the cleaning composition from the discharge port using the spray gun of the present invention, the cleaning composition can be discharged in a good foam shape, and the cleaning composition may be scattered in addition to the object. Absent.

As a method for discharging the cleaning composition of the present invention, it is desirable that the viscosity of the cleaning composition measured with an E-type viscometer is 0 to 300 mPa · s at 20 rpm and 20 ° C. When the spray gun of the present invention is used, a detergent composition having a viscosity of 0 to 300 mPa · s measured at a rotation speed of 20 rpm and 20 ° C. can be ejected in a good foam shape and adhered to an object. Therefore, the cleaning composition having such a viscosity is particularly suitable for using the cleaning composition having such a viscosity in the method for discharging the cleaning composition of the present invention.

According to the spray gun tip and the spray gun of the present invention, the fluid can be discharged in a good foam shape. Further, according to the method of discharging a cleaning composition using the spray gun of the present invention, the cleaning composition can be discharged in a good foam shape, and in particular, the viscosity measured by an E-type viscometer is rotated. A detergent composition having a high viscosity that does not exceed 300 mPa · s at several 20 rpm and 20 ° C. can be discharged in a good foam shape.

Fig.1 (a) is the perspective view which showed typically an example of the tip for spray guns concerning 1st embodiment of this invention, FIG.1 (b) is a front view from the arrow X direction of Fig.1 (a). FIG. 1C is a cross-sectional view taken along line AA of FIG. 1B. FIG. 2 is a front view schematically showing another example of the tip for a spray gun according to the first embodiment of the present invention. FIG. 3 is a front view schematically showing another example of the tip for a spray gun according to the first embodiment of the present invention. FIG. 4 (a) is a perspective view schematically showing an example of a spray gun body to which the spray gun tip according to the first embodiment of the present invention is attached, and FIG. 4 (b) is a first view of the present invention. FIG. 4C is a perspective view schematically showing an example of the spray gun according to the first embodiment of the present invention, in which the spray gun tip according to the embodiment is mounted on the spray gun body, and FIG. It is the fragmentary sectional view which expanded and showed the site | part with which the tip for spray gun was mounted | worn with the spray gun main body in b). Fig.5 (a) is the perspective view which showed typically an example of the tip for spray guns concerning 2nd embodiment of this invention, FIG.5 (b) is a front view from the arrow Y direction of Fig.5 (a). FIG. 5C is a cross-sectional view taken along the line BB of FIG. 5B. FIG. 6A is a perspective view schematically showing an example of a spray gun body to which a spray gun tip according to the second embodiment of the present invention is attached, and FIG. 6B is a second view of the present invention. FIG. 6C is a perspective view schematically showing an example of the spray gun according to the second embodiment of the present invention, in which the spray gun tip according to the embodiment is mounted on the spray gun body, and FIG. It is the fragmentary sectional view which expanded and showed the site | part with which the tip for spray gun was mounted | worn with the spray gun main body in b). Fig.7 (a) is the perspective view which showed typically an example of the tip for spray guns concerning 3rd embodiment of this invention, FIG.7 (b) is from the arrow Z direction of Fig.7 (a). FIG. 7C is a cross-sectional view taken along the line CC of FIG. 7B. FIG. 8A is a perspective view schematically showing an example of a spray gun body to which a spray gun tip according to the third embodiment of the present invention is attached, and FIG. 8B is a third view of the present invention. FIG. 8C is a perspective view schematically showing an example of the spray gun according to the third embodiment of the present invention, in which the spray gun tip according to the embodiment is mounted on the spray gun body, and FIG. It is the fragmentary sectional view which expanded and showed the site | part with which the tip for spray gun was mounted | worn with the spray gun main body in b).

Hereinafter, the spray gun tip, the spray gun, and the method of discharging the cleaning composition of the present invention will be specifically described. However, the present invention is not limited to the following embodiments, and can be applied with appropriate modifications without departing from the scope of the present invention.

The spray gun of the present invention is a spray gun for allowing fluid sprayed from the spray port of the spray gun main body to pass through the tubular member and to be discharged from the discharge port of the spray gun tip attached to the tip of the spray gun. The cylindrical member has an injection port side opening through which fluid flows from the injection port side of the spray gun body and a discharge port side opening through which fluid flows out to the discharge port side of the spray gun tip. The discharge port of the spray gun tip is provided with a protruding portion that protrudes toward the inside of the discharge port, starting from the inner wall that forms the discharge port. The opening ratio of the discharge port is 45 to 75%.

When such a spray gun of the present invention is used, a fluid can be discharged in a good foam shape. Hereinafter, an embodiment of a spray gun of the present invention and an embodiment of a tip for a spray gun of the present invention that is suitably used for the spray gun of the present invention will be described.
In addition, embodiments of the method of discharging the cleaning composition using the spray gun of the present invention will be described as needed.

(First embodiment)
The tip for a spray gun according to the first embodiment of the present invention is a tip for a spray gun that is attached to the tip of a spray gun body having an injection port, and the tip for a spray gun is an injection of the spray gun body. A cylindrical member that allows fluid ejected from the mouth to pass therethrough and a discharge port that ejects fluid that has passed through the tubular member, and the fluid flows into the cylindrical member from the spray port side of the spray gun body. It is a fluid flow path having an ejection port side opening and a discharge port side opening that allows fluid to flow out to the discharge port side, and the discharge port and the discharge port side opening of the tubular member are integrated. The discharge port is provided with a protruding portion that protrudes toward the inside of the discharge port starting from the inner wall that forms the discharge port. The opening ratio of the discharge port is 45 to 75%. It is characterized by being.

Fig.1 (a) is the perspective view which showed typically an example of the tip for spray guns concerning 1st embodiment of this invention, FIG.1 (b) is a front view from the arrow X direction of Fig.1 (a). FIG. 1C is a cross-sectional view taken along line AA of FIG. 1B.

A spray gun chip 100 shown in FIG. 1A includes a discharge port 101 and a protruding portion 102 that protrudes toward the inside of the discharge port 101 starting from an inner wall 103 that forms the discharge port 101. Also, a fixing member 104 for preventing the spray gun tip 100 from being easily detached when the spray gun tip 100 is attached to the spray gun body, and a rotation preventing member 105 for preventing the spray gun tip 100 from rotating. Yes.

As shown in FIG. 1B, in the front view of the spray gun tip 100 viewed from the front toward the discharge port 101, the shape of the inner wall 103 forming the discharge port 101 is circular. With the shape of the inner wall, the shape of the discharge port 101 itself is determined to be circular.
The diameter of the discharge port is not particularly limited, but is preferably 4.0 to 6.0 mm, more preferably 4.5 to 5.5 mm, and 4.8 to 5.2 mm. More desirable.
The protrusions 102 protrude from the inner wall 103 toward the inside of the discharge port 101. In the form shown in FIG. 1B, the three protrusions 102 overlap each other at the center of the discharge port 101 to form a Y shape. doing. The discharge port 101 is partitioned into a plurality of regions (three regions) by the Y-shaped protrusions 102.
The width of the protrusion 102 is a width represented by W in FIG. 1B and is not particularly limited, but is desirably 0.4 to 1.2 mm, and is 0.6 to 1.mm. 2 mm is more desirable.

In the front view of the spray gun tip 100 as viewed from the front toward the discharge port 101 as shown in FIG. 1B, the opening ratio of the discharge port 101 is blocked by the protruding portion 102 out of the total area of the discharge port 101. It refers to the proportion of the area of the portion that is not passed, that is, the portion through which the fluid can pass. Since the shape of the discharge port 101 is circular, the total area of the discharge port may be the area of a circle that forms the discharge port.
In the spray gun tip of the present invention, the aperture ratio determined as described above is 45 to 75%. The aperture ratio is more preferably 50 to 70%, and further preferably 55 to 60%.

In the cross-sectional view shown in FIG. 1C, a cylindrical member 106 included in the spray gun tip 100 is shown. The cylindrical member 106 shown in FIG. 1 (c) has a cylindrical shape. When the spray gun tip 100 is attached to the spray gun body, an injection port side opening 108 through which fluid flows from the spray port of the spray gun body, and a discharge port are provided. Discharge port side opening 109 for allowing fluid to flow out is provided on the outlet 101 side.
The ejection opening side opening 109 to the ejection opening side opening 109 serve as a fluid flow path.
The discharge port side opening 109 is integrated with the discharge port 101. It can also be said that the plane constituting the discharge port side opening 109 is integrated with the plane constituting the ejection port side of the discharge port 101.
The fluid passing through the tubular member 106 becomes a rough foam by colliding with the inner wall 107 of the tubular member, and collides with the protrusion 102 provided in the discharge port 101 when flowing out from the discharge port side opening 109. The result is a fine foam. Therefore, the fluid ejected from the spray port of the spray gun body becomes a good foam and is ejected from the spray port 101 to the outside of the spray gun tip 100.
The inner diameter shape of the cylindrical member is not particularly limited, but is preferably the same as the shape of the discharge port. If the discharge port is circular, the cylindrical member is cylindrical and has the same inner diameter as the diameter of the discharge port. It is desirable to have a shape having

The length of the cylindrical member 106 in the longitudinal direction is such that when the spray gun tip 100 is attached to the tip of the spray gun body, the discharge port side opening is equal to the distance from the discharge port 101 to the spray port of the spray gun body. It is desirable that it is 60 to 100% starting from 109.

The length of the cylindrical member 106 in the longitudinal direction is the distance from the injection port side opening 108 to the discharge port side opening 109 of the cylindrical member 106 (the distance indicated by the double arrow K in FIG. 1C).

Since the distance from the discharge port 101 to the spray port of the spray gun body is determined by mounting the spray gun tip 100 on the spray gun body, from the discharge port 101 with the spray gun tip 100 mounted on the spray gun body. It can be determined by measuring the distance to the spray port of the spray gun body.
Note that the position of the discharge port when determining the distance from the discharge port 101 to the spray port of the spray gun body may be the same as the position of the discharge port side opening 109 of the cylindrical member 106.

Further, in FIG. 1C, the spray gun main body side end portion 105 a of the rotation preventing member 105 is positioned closer to the spray gun main body side (side where the injection port is located) than the injection port side opening 108 of the cylindrical member 106. doing. Therefore, when the spray gun tip 100 shown in FIG. 1C is attached to the spray gun body, the spray gun body comes into contact with the spray gun body end 105a of the rotation prevention member 105. And in the spray gun of this embodiment mentioned later, the position where the edge part 105a by the side of the spray gun main body of the rotation prevention member 105 contacts a spray gun main body turns into the same position as the position of the spray nozzle of a spray gun main body. Therefore, the distance from the discharge port 101 to the spray port of the spray gun body is the distance between the spray gun body side end 105 a of the rotation prevention member 105 and the discharge port 101 in the longitudinal direction of the cylindrical member 106. This is the distance indicated by the double arrow L in FIG.
That is, the distance from the discharge port 101 to the spray port of the spray gun body is the distance between the position where the spray gun tip 100 contacts the spray gun body and the discharge port 101 in the longitudinal direction of the cylindrical member 106 (this distance). In other words, it is a distance indicated by a double arrow L in FIG.

When the spray gun tip is mounted on the spray gun body, the anti-rotation member does not necessarily need to contact the spray gun body. For example, a fixed member or a cylindrical member is configured to contact the spray gun body. May be.
When the fixing member is configured to come into contact with the spray gun body, the distance from the discharge port to the spray port of the spray gun body is determined by the position in the longitudinal direction of the tubular member and the position at which the fixing member contacts the spray gun body. This is the distance between the exits.
When the tubular member is configured to contact the spray gun body, the distance from the discharge port to the spray port of the spray gun body is the position where the tubular member contacts the spray gun body in the longitudinal direction of the tubular member. This distance is the distance from the injection port side opening of the cylindrical member to the discharge port side opening. Therefore, the length of the cylindrical member in the longitudinal direction is 100% starting from the discharge port side opening with respect to the distance from the discharge port to the spray port of the spray gun body.

In the spray gun tip of the present embodiment, the shape of the discharge port in the front view of the spray gun tip viewed from the front toward the discharge port is not particularly limited, but in addition to a circle, an ellipse, a regular hexagon, a regular octagon A regular polygon such as is desirable. Moreover, the shape etc. in which the vertex of these polygons was chamfered may be sufficient.

In the spray gun tip of the present embodiment, the shape of the protrusion in the front view is not particularly limited to a Y shape, and may be a radial shape, a lattice shape, or the like other than the Y shape.
Examples of the radial shape other than the Y-shape include those in which a protruding portion protrudes from the outer periphery of the discharge port toward the center of the discharge port.
Examples of the radial shape include multi-forked shapes such as a letter shape, a cross shape, and a five-forked shape. In addition, a shape having no protrusion at the central portion of the multi-forked shape is one of desirable shapes as a radial shape.

FIG. 2 is a front view schematically showing another example of the tip for a spray gun according to the first embodiment of the present invention. In the spray gun tip 200 shown in FIG. 2, a protruding portion 202 protrudes toward the inside of the discharge port 201 starting from the inner wall 203 of the discharge port 201 in the front view, and further, a protruding portion at the center of the discharge port 201. 202 does not overlap. That is, the shape of the protruding portion 202 is a Y shape in which the protruding portion 202 does not exist at the center of the discharge port 201.
In the spray gun tip 200 shown in FIG. 2, the discharge port 201 is not partitioned into a plurality of regions by the protrusions 202. The spray gun tip 200 may have the same desirable configuration as the spray gun tip 100 shown in FIG. 1 except for the shape of the protrusion 202.

FIG. 3 is a front view schematically showing another example of the tip for a spray gun according to the first embodiment of the present invention. In the spray gun chip 300 shown in FIG. 3, a protruding portion 302 protrudes toward the inside of the discharge port 301 starting from the inner wall 303 of the discharge port 301 in the above front view, and the protruding portions 302 intersect with each other vertically. The shape is formed.
When the shape of the protrusion is a lattice, the width of the protrusion is preferably 0.4 to 1.2 mm, and more preferably 0.4 to 0.8 mm.
The spray gun tip 300 may have the same configuration as that of the spray gun tip 100 shown in FIG. 1 except for the shape of the protrusion 302.

The material constituting the spray gun tip according to the present embodiment is not particularly limited, and may be made of metal or resin, but polyethylene (PE), polypropylene (PP), acrylonitrile styrene ( AS), polyethylene terephthalate (PET), polystyrene (PS), polymethylpentene (PMP) and the like are desirable, polyethylene (PE) is more desirable, and linear low density polyethylene (LLDPE) is particularly desirable. .

The method for molding the spray gun tip according to the present embodiment is not particularly limited, and a conventionally known method can be used, and examples thereof include molding by cutting, injection molding, and the like.
Further, the spray gun tip according to the present embodiment may be formed by combining a plurality of parts by means such as adhesion or fitting, or may be formed integrally.

Next, the spray gun according to the first embodiment of the present invention will be described.
In the spray gun according to the first embodiment of the present invention, the discharge port of the tip for the spray gun and the discharge port side opening of the cylindrical member are integrated so that the cylindrical member becomes the tip for the spray gun. It is integrated with. That is, in the spray gun according to the first embodiment of the present invention, it can be said that the cylindrical member exists on the tip side of the spray gun.
As an example for achieving such a configuration, it is desirable to use a spray gun equipped with the spray gun tip according to the first embodiment of the present invention. The spray gun equipped with the spray gun tip according to the first embodiment of the present invention will be described below.

FIG. 4A is a perspective view schematically showing an example of a spray gun body to which the spray gun tip according to the first embodiment of the present invention is attached. As shown to Fig.4 (a), the spray gun main body 10 is provided with the injection port 11 which injects the fluid.

FIG. 4B is a perspective view schematically showing an example of the spray gun according to the first embodiment of the present invention, in which the spray gun tip according to the first embodiment of the present invention is mounted on the spray gun body. It is.
In the spray gun 1 according to the first embodiment of the present invention shown in FIG. 4 (b), the spray gun tip 100 according to the first embodiment of the present invention is attached to the tip of the spray gun body 10.

FIG. 4C is a partial cross-sectional view showing, in an enlarged manner, the portion where the spray gun tip is mounted on the spray gun body in FIG.
The spray gun body 10 is provided with a recess 12 formed so as to be fitted to the fixing member 104 of the spray gun tip 100, and the fixing member 104 and the recess 12 are fitted to form the spray gun tip 100. Mounted on the spray gun body 10.
Moreover, the spray gun body 10 includes an injection port 11 for injecting a fluid.
In the spray gun 1 of the present embodiment, the discharge port 101 of the spray gun tip 100 and the discharge port side opening 109 of the cylindrical member 106 are integrated, whereby the cylindrical member 106 is integrated with the spray gun tip 100. ing.

Hereinafter, the flow of the fluid when the fluid is discharged from the spray gun according to the first embodiment of the present invention will be described with reference to FIG.
The fluid ejected from the ejection port 11 of the spray gun main body 10 passes through the cylindrical member 106 constituting the spray gun tip 100. At this time, the fluid flows into the cylindrical member 106 from the ejection port side opening 108 of the cylindrical member 106 and passes through the cylindrical member 106 by flowing out of the discharge port side opening 109. When the fluid passes through the tubular member 106, it collides with the inner wall 107 of the tubular member to form a rough foam, and when the fluid flows out from the discharge port side opening 109, it collides with the protrusion 102 provided in the discharge port 101. By doing so, it becomes a fine foam and is discharged from the discharge port 101 to the outside of the spray gun 1.
Therefore, in the spray gun according to the first embodiment of the present invention using the tip for the spray gun according to the first embodiment of the present invention, the fluid ejected from the spray gun body can be discharged as a good foam. it can.

In the spray gun of this embodiment, the distance from the discharge port 101 to the spray port 11 of the spray gun body 10 is the length represented by the double arrow L in FIG. This length L is the same as the distance between the discharge port 101 and the position where the spray gun main body side end portion 105 a of the rotation preventing member 105 contacts the spray gun main body 10.
The length in the longitudinal direction of the cylindrical member 106 is the distance from the injection port side opening 108 to the discharge port side opening 109 of the cylindrical member 106 (the length indicated by the double arrow K in FIG. 4C). .

The method for attaching the spray gun tip to the spray gun body is not particularly limited. For example, the spray gun tip is formed so that the concave portion provided in the spray gun main body and the convex portion provided in the spray gun tip are fitted. Alternatively, other mounting methods may be used.

(Second embodiment)
A spray gun tip according to a second embodiment of the present invention is a spray gun tip attached to a tip of the spray gun body provided with a cylindrical member integrated with a spray port of the spray gun body, The spray gun tip is provided with a discharge port that discharges the fluid that is sprayed from the spray port of the spray gun body and passes through the cylindrical member, and the discharge port starts from an inner wall that forms the discharge port. A protrusion that protrudes toward the inside of the discharge port is formed, and the opening ratio of the discharge port is 45 to 75%.

Fig.5 (a) is the perspective view which showed typically an example of the tip for spray guns concerning 2nd embodiment of this invention, FIG.5 (b) is a front view from the arrow Y direction of Fig.5 (a). FIG. 5C is a cross-sectional view taken along the line BB of FIG. 5B.

The spray gun tip 400 shown in FIG. 5A is similar to the spray gun tip 100 shown in FIG. 1A in that the discharge port 401 and the inner wall 403 forming the discharge port 401 are used as starting points. And a projecting portion 402 projecting inward. A fixing member 404 and a rotation preventing member 405 are provided.

The shape of the spray gun tip 400 shown in FIG. 5B when viewed from the front is the same as the shape of the spray gun tip 100 shown in FIG. The desirable shape of the inner wall 403 forming the ejection port 401, the desirable diameter of the ejection port 401, the desirable shape and width of the protruding portion 402, and the desirable opening ratio of the ejection port 401 are also supported in the spray gun chip 100 shown in FIG. Since it is the same as the form to be performed, the detailed description thereof is omitted.
The material constituting the spray gun tip and the molding method thereof can be the same as those of the spray gun tip according to the first embodiment of the present invention, and the shape of the discharge port is shown in FIG. 2 or FIG. It may be a shape.

As shown in FIG. 5C, the spray gun tip 400 differs from the spray gun tip 100 shown in FIGS. 1A to 1C in that it does not have a cylindrical member.
The spray gun tip of this embodiment is a spray gun tip attached to the tip of a spray gun main body provided with a cylindrical member integrated with the spray port of the spray gun main body, and a cylinder provided in the spray gun main body. The fluid that has passed through the shaped member collides with a protrusion provided at the discharge port of the spray gun tip.

Subsequently, a spray gun according to a second embodiment of the present invention will be described.
In the spray gun according to the second embodiment of the present invention, the injection port of the spray gun body and the injection port side opening of the cylindrical member are integrated with each other so that the cylindrical member is connected to the spray gun body. The discharge port side opening of the cylindrical member is configured to be in contact with or close to the discharge port of the spray gun tip. That is, in the spray gun according to the second embodiment of the present invention, it can be said that the cylindrical member exists on the spray gun body side.
In this specification, “approaching” refers to a state in which the cylindrical member and the cylindrical member, or the cylindrical member and the discharge port are close enough to form a continuous fluid flow path. Specifically, the distance between two planes forming the opening or the discharge port is preferably 0.1 to 2.0 mm, more preferably 0.1 to 1.0 mm, 0.1 It is further desirable that the thickness be ˜0.5 mm.
That is, “the discharge port side opening is configured to be close to the discharge port of the spray gun tip” means that the discharge port side opening and the discharge port have a continuous fluid flow path. It shows that they are close enough to form.
As an example for achieving such a configuration, it is desirable to use a spray gun equipped with the spray gun tip according to the second embodiment of the present invention. Hereinafter, the spray gun equipped with the spray gun tip according to the second embodiment of the present invention will be described.

FIG. 6A is a perspective view schematically showing an example of a spray gun body to which the spray gun tip according to the second embodiment of the present invention is attached. As shown in FIG. 6A, the spray gun body 40 is provided with a cylindrical member 46, and the cylindrical member 46 extends in the direction in which the spray gun tip is mounted.

FIG. 6B is a perspective view schematically showing an example of the spray gun according to the second embodiment of the present invention, in which the spray gun tip according to the second embodiment of the present invention is mounted on the spray gun body. It is.
In the spray gun 4 according to the second embodiment of the present invention shown in FIG. 6 (b), the spray gun tip 400 according to the second embodiment of the present invention is attached to the tip of the spray gun body 40.

FIG. 6C is a partial cross-sectional view showing, in an enlarged manner, a portion where the spray gun tip is attached to the spray gun body in FIG.
The spray gun tip 400 is mounted on the spray gun main body 40 by fitting the recess 42 of the spray gun main body 40 and the fixing member 404 of the spray gun tip 400 into the spray gun according to the first embodiment of the present invention. Same as cancer.
The spray gun main body 40 includes an injection port 41 for injecting a fluid, and further includes a cylindrical member 46. The cylindrical member 46 has an injection port side opening 43 and a discharge port side opening 44, and the cylindrical member 46 is integrated with the spray gun body 40 by integrating the injection port 41 and the injection port side opening 43. It has become.

Hereinafter, the flow of the fluid when the fluid is discharged from the spray gun according to the second embodiment of the present invention will be described with reference to FIG.
The fluid ejected from the ejection port 41 of the spray gun body 40 passes through the cylindrical member 46 integrated with the spray gun body 40. At this time, the fluid flows into the cylindrical member 46 from the outlet side opening 43 of the cylindrical member 46 and passes through the cylindrical member 46 by flowing out of the outlet side opening 44. When the fluid passes through the tubular member 46, it collides with the inner wall 45 of the tubular member to form a rough foam. Further, when the fluid flows out of the discharge port side opening 44, it collides with the protrusion 402 provided in the discharge port 401. By doing so, it becomes a fine foam and is discharged out of the spray gun 4 from the discharge port 401.
Therefore, in the spray gun according to the second embodiment of the present invention using the spray gun tip according to the second embodiment of the present invention, the fluid sprayed from the spray gun body can be discharged as a good foam. it can.

(Third embodiment)
The spray gun tip according to the third embodiment of the present invention, like the spray gun tip according to the second embodiment of the present invention, is a spray gun provided with a cylindrical member integrated with the spray port of the spray gun body. This is a spray gun tip attached to the tip of the main body, and can be said to be a modification of the spray gun tip according to the second embodiment of the present invention.
The spray gun tip according to the third embodiment of the present invention is the spray gun tip according to the second embodiment of the present invention, further comprising a second cylindrical member integrated with the discharge port. It is. The second cylindrical member includes a second injection port side opening through which fluid flows from the cylindrical member side integrated with the injection port of the spray gun body, and a second discharge port side through which fluid flows out to the discharge port side. The discharge port and the second discharge side opening are integrated, the second injection port side opening of the second cylindrical member and the above A continuous fluid flow path is formed by contacting or approaching the discharge port side opening of the cylindrical member integrated with the spray port of the spray gun body.

Fig.7 (a) is the perspective view which showed typically an example of the tip for spray guns concerning 3rd embodiment of this invention, FIG.7 (b) is from the arrow Z direction of Fig.7 (a). FIG. 7C is a cross-sectional view taken along the line CC of FIG. 7B.

Desirable forms of the discharge port 501, the protrusion 502, the fixing member 504, and the rotation preventing member 505 of the spray gun tip 500 shown in FIGS. 7A and 7B are shown in FIGS. 5A and 5B. This is the same as the corresponding embodiment in the spray gun tip 400 shown. Therefore, the detailed description is abbreviate | omitted.

As shown in FIG. 7C, the spray gun tip 500 is different from the spray gun tip 400 shown in FIGS. 5A to 5C in that it has a second cylindrical member 506.
The second cylindrical member 506 has a second ejection port side opening 508 and a second ejection port side opening 509, and the second ejection port side opening 509 is integrated with the ejection port 501.

In the spray gun tip 500, the length of the second cylindrical member 506 in the longitudinal direction is determined so as not to come into contact with the spray port of the spray gun main body to be mounted, and the second cylindrical member 506 is the spray gun main body. It is comprised so that it may become a flow path of the continuous fluid by contacting or approaching the cylindrical member integrated with the injection port.
In the spray gun tip of this embodiment, the fluid that has passed through the cylindrical member integrated with the spray port of the spray gun body flows into the second cylindrical member, and the fluid that has passed through the second cylindrical member is used for the spray gun. It collides with the protrusion provided in the discharge port of the chip.

Subsequently, a spray gun according to a third embodiment of the present invention will be described.
In the spray gun according to the third embodiment of the present invention, the cylindrical member includes a first injection port side opening integrated with the injection port of the spray gun body, and is integrated with the spray gun body. A cylindrical member, and a second cylindrical member that is integrated with the spray gun tip with a second discharge port side opening integrated with the discharge port of the spray gun tip. A first discharge port side opening which is an opening located on the opposite side to the first injection port side opening in one cylindrical member, and a second discharge port side opening on the opposite side to the second discharge port side opening in the second cylindrical member. A fluid flow path in which the first cylindrical member and the second cylindrical member are continuous is formed by contacting or approaching the second injection port side opening, which is a positioned opening.
That is, in the spray gun according to the third embodiment of the present invention, it can be said that the cylindrical member exists on both the spray gun main body side and the spray gun tip side.
As an example for achieving such a configuration, it is desirable to use a spray gun equipped with the spray gun tip according to the third embodiment of the present invention. Hereinafter, the spray gun equipped with the spray gun tip according to the third embodiment of the present invention will be described.

FIG. 8A is a perspective view schematically showing an example of a spray gun main body to which a spray gun tip according to the third embodiment of the present invention is attached. As shown in FIG. 8A, the spray gun body 50 is provided with a first tubular member 56, and the first tubular member 56 extends in the direction in which the spray gun tip is mounted.

FIG. 8B is a perspective view schematically showing an example of the spray gun according to the third embodiment of the present invention, in which the spray gun tip according to the third embodiment of the present invention is mounted on the spray gun body. It is.
In the spray gun 5 according to the third embodiment of the present invention shown in FIG. 8B, the spray gun tip 500 according to the third embodiment of the present invention is attached to the tip of the spray gun body 50.

FIG. 8C is a partial cross-sectional view showing, in an enlarged manner, a portion where the spray gun tip is attached to the spray gun body in FIG.
The spray gun tip 500 is mounted on the spray gun main body 50 by fitting the recess 52 of the spray gun main body 50 and the fixing member 504 of the spray gun tip 500 into the spray according to the second embodiment of the present invention. Same as cancer.
The spray gun main body 50 includes an injection port 51 for injecting a fluid, and further includes a first cylindrical member 56. The first cylindrical member 56 has a first injection port side opening 53 and a first discharge port side opening 54, and by integrating the injection port 51 and the first injection port side opening 53, The first tubular member 56 is integrated with the spray gun body 50.

The second cylindrical member 506 of the spray gun tip 500 is configured to be a continuous fluid flow path by contacting or approaching the first cylindrical member 56. When the second injection port side opening 508 of the second cylindrical member 506 and the first discharge port side opening 54 of the first cylindrical member 56 contact or approach each other, the first cylindrical member 56 and the second cylinder A fluid flow path in which the shaped members 506 are continuous is formed.
In the above description, “approach” means that two planes are close to each other to the extent that a continuous fluid flow path is formed by the first cylindrical member 56 and the second cylindrical member 506. I mean.

Hereinafter, the flow of the fluid when the fluid is discharged from the spray gun according to the third embodiment of the present invention will be described with reference to FIG.
The fluid ejected from the spray port 51 of the spray gun main body 50 passes through the first cylindrical member 56 integrated with the spray gun main body 50, and further passes through the second cylindrical member 506 integrated with the spray gun tip 500. pass. When the fluid passes through the first cylindrical member 56 and the second cylindrical member 506, the fluid collides with the inner wall 55 of the first cylindrical member 56 and the inner wall 507 of the second cylindrical member 506, thereby forming a rough foam. When it flows out from the second discharge port side opening 509, it collides with the protrusion 502 provided in the discharge port 501, thereby forming a fine bubble and discharging from the discharge port 501 to the outside of the spray gun 5. .
Therefore, in the spray gun according to the third embodiment of the present invention using the tip for the spray gun according to the third embodiment of the present invention, the fluid sprayed from the spray gun body can be discharged as a good foam. it can.

Next, a method for discharging the cleaning composition of the present invention will be described.
The discharge method of the cleaning composition of the present invention is characterized in that the cleaning composition is discharged from the discharge port using the spray gun of the present invention.
By using the spray gun of the present invention, the cleaning composition can be discharged in a good foam shape.

In the cleaning composition discharging method, the viscosity of the cleaning composition measured with an E-type viscometer is preferably 0 to 300 mPa · s at 20 rpm and 20 ° C.
The more desirable viscosity of the cleaning composition used in the method for discharging the cleaning composition of the present invention is 0 to 200 mPa · s. A detergent composition having a viscosity of the cleaning composition in such a range was difficult to be discharged in a good foam shape with a conventional spray gun, but by using the spray gun of the present invention, a good foam shape was obtained. Can be discharged.
The specific composition of the cleaning composition is not particularly limited. For example, 3 parts by weight of caustic soda, 4 parts by weight of linear sodium alkylbenzene sulfonate, 5 parts by weight of sodium xylene sulfonate, and xanthan gum A cleaning composition containing 0.5 part by weight is exemplified.

Examples for more specifically explaining the present invention are shown below, but the present invention is not limited to these examples.

(Production Example 1)
A spray gun tip having the shape shown in FIGS. 1A to 1C was made of linear low density polyethylene (LLDPE).
The shape of the discharge port was a circle having a diameter of 5.0 mm, and the shape of the protruding portion was a Y shape having a width of 1.0 mm. This spray gun tip was designated as (A-1).
The opening ratio of the discharge port is 59.2%, and the length of the cylindrical member is 77.9% starting from the discharge port side opening with respect to the distance from the discharge port to the spray port of the spray gun body. It was determined as follows.
The inner diameter of the cylindrical member was determined to be the same as the discharge port.

(Production Examples 2 to 10)
According to the specifications described in Table 1, spray gun tips (A-2) to (A-10) were produced. Table 1 shows the specifications of the spray gun tips (A-1) to (A-10).
In Production Example 2, the shape of the protrusions was a shape in which two protrusions in the vertical direction and two horizontal protrusions were orthogonally formed as shown in FIG.

(Discharge test)
Spray gun tips (A-1) to (A-10) were placed on a commercially available spray gun body (manufactured by Canyon Co., model number: T-95C7S, injection port diameter 0.6 mm, injection amount per stroke 0.7 ± 0. 1 cc), and a discharge test was performed using a cleaning composition having the viscosity shown in Table 2.
The procedure of the discharge test is shown below.
First, a spray gun was sprayed at an angle of 45 degrees downward from a point 30 cm above the polypropylene flat plate placed on the desk. Next, visually check the state of the discharged foam and the state of the spray gun, the state of the foam, the scattering of the discharged liquid, the aim of the spray (whether it is being discharged to the target location), the liquid dripping from the discharge port Was determined according to the following criteria.
Table 2 shows the results of the discharge test.

［泡状態の評価］
◎：きわめて良好な泡となっている。
○：良好な泡となっている。
△：良好な泡となっていない。
×：泡となっていない。
［吐出した液体の飛び散り］
○：飛び散りがほとんど認められない。
×：飛び散りが認められる。
［スプレーの狙い］
○：狙った箇所に吐出される。
×：狙った箇所から大幅にずれて吐出される。
［吐出口からの液垂れ］
○：吐出口からの液垂れが認められない。
△：吐出口からの液垂れが少し認められる。
×：吐出口からの液垂れが認められる。

[Evaluation of foam state]
A: Very good foam.
○: Good foam.
(Triangle | delta): It is not favorable foam.
X: It is not foamed.
[Spattering of discharged liquid]
○: Almost no scattering is observed.
X: Scattering is recognized.
[Aim of spray]
○: Discharged to the target location.
X: Discharged with a significant deviation from the target location.
[Liquid dripping from discharge port]
○: No dripping from the discharge port is observed.
Δ: A little dripping from the discharge port is observed.
X: The dripping from a discharge outlet is recognized.

Evaluation of the foam state of the foam discharged using the spray gun of the present invention using the spray gun tip of the present invention was either ◎ or ○, and it was confirmed that the foam was good.
In particular, good bubbles can be discharged even with a high viscosity liquid detergent composition of 100 mPa · s, and good bubbles can be discharged even with a low viscosity liquid detergent composition of 2 mPa · s. I was able to.
In addition, by adjusting the opening ratio of the discharge port to a more preferable range and adjusting the length of the cylindrical member to a preferable range, it is possible to prevent the discharged liquid from splashing, and to discharge reliably to the target location. It was also possible to make it. Furthermore, dripping from the discharge port could be prevented.

Spray gun 1, 4, 5
Spray gun tip 100, 200, 300, 400, 500
Discharge port 101, 201, 301, 401, 501
Projection 102, 202, 302, 402, 502
Inner walls 103, 203, 303, 403 that form discharge ports
Cylindrical member integrated with spray gun tip 106
A jet port side opening of a cylindrical member integrated with a spray gun tip 108
A discharge port side opening of a cylindrical member integrated with a spray gun tip 109
Spray gun body 10, 40, 50
Injection port 11, 41, 51
A cylindrical member integrated with the spray port of the spray gun body 46
Spray port side opening of cylindrical member integrated with spray port of spray gun body 43
The discharge port side opening of the cylindrical member integrated with the spray port of the spray gun body 44
First tubular member 56
First injection port side opening 53
First discharge port side opening 54
Second cylindrical member 506
Second injection port side opening 508
Second outlet side opening 509

Claims (21)

A spray gun tip attached to the tip of a spray gun body provided with an injection port,
The spray gun tip includes a cylindrical member that allows fluid ejected from the spray port of the spray gun body, and a discharge port that ejects fluid that has passed through the cylindrical member,
The cylindrical member is a fluid flow path including an ejection opening side opening through which fluid flows from the ejection opening side of the spray gun body and an ejection opening side opening through which fluid flows out to the ejection opening side. ,
The discharge port and the discharge port side opening of the cylindrical member are integrated,
The discharge port has a protruding portion that protrudes toward the inside of the discharge port, starting from an inner wall that forms the discharge port,
The spray gun tip, wherein an opening ratio of the discharge port is 45 to 75%. When the spray gun tip is attached to the tip of the spray gun body,
The length in the longitudinal direction of the cylindrical member is 60 to 100% starting from the discharge port side opening with respect to the distance from the discharge port to the spray port of the spray gun body. Spray gun tip. A spray gun tip attached to the tip of the spray gun body provided with a cylindrical member integrated with the spray port of the spray gun body,
The spray gun tip includes a discharge port that is sprayed from a spray port of the spray gun body and discharges the fluid that has passed through the cylindrical member,
The discharge port has a protruding portion that protrudes toward the inside of the discharge port, starting from an inner wall that forms the discharge port,
The spray gun tip, wherein an opening ratio of the discharge port is 45 to 75%. A spray gun tip further comprising a second cylindrical member integrated with the discharge port,
The second cylindrical member includes a second injection port side opening through which fluid flows from a cylindrical member side integrated with the injection port of the spray gun body, and a second discharge port side through which fluid flows out to the discharge port side. A fluid flow path with an opening,
The discharge port and the second discharge port side opening are integrated,
When the second injection port side opening of the second cylindrical member and the discharge port side opening of the cylindrical member integrated with the injection port of the spray gun body are in contact with or approaching each other, a continuous fluid flow path is formed. The tip for a spray gun according to claim 3, wherein the tip is formed. The tip for a spray gun according to any one of claims 1 to 4, wherein an opening ratio of the discharge port is 50 to 70%. The front view of the spray gun tip as viewed from the front toward the discharge port, the discharge port has a circular shape and a diameter of 4.0 to 6.0 mm. The tip for spray gun as described. The spray gun tip according to any one of claims 1 to 6, wherein the protruding portion divides the discharge port into a plurality of regions. The front view of the spray gun tip as viewed from the front toward the discharge port, the shape of the protrusion is Y-shaped, and the width of the protrusion is 0.6 to 1.2 mm. The tip for spray gun as described. The front view of the spray gun tip when viewed from the front toward the discharge port, the shape of the protrusion is a lattice shape, and the width of the protrusion is 0.4 to 1.2 mm. Spray gun tip. A spray gun for allowing fluid sprayed from a spray port of a spray gun body to pass through a cylindrical member and discharging from a discharge port of a tip for a spray gun attached to the tip of the spray gun body,
The cylindrical member includes a spray port side opening through which fluid flows from the spray port side of the spray gun body and a discharge port side opening through which fluid flows out to the discharge port side of the spray gun tip. It becomes the flow path of
The discharge port of the spray gun tip has a protruding portion that protrudes toward the inside of the discharge port, starting from an inner wall that forms the discharge port,
A spray gun having an opening rate of 45 to 75%. The spray according to claim 10, wherein the cylindrical member is integrated with the spray gun chip by integrating the discharge port of the spray gun chip and the discharge port side opening of the cylindrical member. gun. 12. The spray gun according to claim 11, wherein a length of the cylindrical member in a longitudinal direction is 60 to 100% with respect to a distance from the discharge port to the ejection port, starting from the discharge port side opening. By integrating the spray port of the spray gun body and the spray port side opening of the cylindrical member, the cylindrical member is integrated with the spray gun body,
The spray gun according to claim 10, wherein the discharge port side opening of the cylindrical member is configured to contact or approach the discharge port of the spray gun tip. The tubular member includes a first tubular member integrated with the spray gun body including a first injection port side opening integrated with the spray port of the spray gun body, and the spray gun tip. A second cylindrical member having a second discharge port side opening integrated with the discharge port and integrated with the spray gun tip;
A first discharge port side opening that is an opening located on the opposite side to the first injection port side opening in the first tubular member, and a second discharge port side opening that is opposite to the second discharge port side opening in the second cylindrical member. The fluid flow path of the fluid which the 1st cylindrical member and the 2nd cylindrical member formed in succession by contacting or approaching the 2nd jet opening side opening which is an opening located in the side. Item 11. The spray gun according to Item 10. The spray gun according to any one of claims 10 to 14, wherein an opening ratio of the discharge port is 50 to 70%. The front view of the spray gun body as viewed from the front toward the discharge port, the discharge port has a circular shape and a diameter of 4.0 to 6.0 mm. Spray gun. The spray gun according to any one of claims 10 to 16, wherein the protruding portion partitions the discharge port into a plurality of regions. The front view of the spray gun as viewed from the front toward the discharge port, the shape of the protrusion is Y-shaped, and the width of the protrusion is 0.6 to 1.2 mm. Spray gun. 18. The spray according to claim 17, wherein in the front view of the spray gun viewed from the front toward the discharge port, the shape of the protrusion is a lattice shape, and the width of the protrusion is 0.4 to 1.2 mm. gun. A method for discharging a cleaning composition, comprising using the spray gun according to claim 10 to discharge the cleaning composition from a discharge port. 21. The method of discharging a cleaning composition according to claim 20, wherein the cleaning composition has a viscosity measured by an E-type viscometer of 0 to 300 mPa · s at 20 rpm and 20 ° C.

Images