JP7693366B2 - Outlet attachment - Google Patents

Description

The present invention relates to an attachment for a discharge port, and in particular to an attachment that is installed and used at the discharge port of a foam mixture discharge gun that discharges a foam mixture.

Conventionally, a foam mixture discharge gun 301 is known that discharges a foam mixture (e.g., a foam mixture of detergent, water, and air) 311 generated by an air mixing type foaming machine toward an object to be cleaned (see FIG. 11). Note that the air mixing type foaming machine and the object to be cleaned are not shown in FIG. 11.

The foam mixture discharge gun 301 is configured with a foam mixture discharge gun main body 303, a filter joint 305, and a lance 307.

A hose 310 is connected to the foam mixture discharge gun main body 303, which supplies the foam mixture 311 generated by the air mixing type foaming machine to the foam mixture discharge gun main body 303.

The filter joint 305 is connected to the outlet (foam mixture outlet) of the foam mixture discharge gun body 303, and the lance 307 is connected to the outlet (foam mixture outlet) of the filter joint 305. The lance 307 is formed in a long, thin cylindrical shape.

When the trigger 309 provided on the foam mixture discharge gun main body 303 is operated, the foam mixture 311 is supplied to the foam mixture discharge gun main body 303 and discharged from the discharge port of the foam mixture discharge gun main body 303 as shown in Figure 11.

To explain further, the foam mixture 311 discharged from the outlet of the foam mixture discharge gun body 303 flows through the filter joint 305 and the lance 307, and is discharged from the outlet 313 at the tip of the elongated lance 307.

The discharged foam mixture 311 is directed toward the object to be cleaned and hits it, thereby cleaning the object. Here, Patent Document 1 and Patent Document 2 can be cited as documents related to the prior art.

Utility Model Publication S58-78161 Japanese Patent Application Publication No. 11-333333

In the foam mixture discharge gun 301, the foam mixture 311 is forcefully discharged from the discharge port 313 of the lance 307 in the same direction as the longitudinal direction of the lance 307. In other words, the solid angle of the foam mixture 311 shown in FIG. 11 is small, and the discharge speed of the foam mixture 311 from the discharge port 313 is considerably fast.

The faster the foam mixture 311 is discharged from the outlet 313, the more easily foreign matter (such as dirt) is removed from the object to be cleaned. However, there are cases where the foam mixture 311 is discharged from the outlet 313 with too much force, making it difficult to use.

For example, when the foam mixture 311 is ejected toward the object to be cleaned, the foam mixture 311 bounces back with great force when it hits the object to be cleaned. In this case, if there are other objects to be cleaned in the vicinity of the object to be cleaned, the rebounded foam mixture 311 may splash over the other objects to be cleaned, causing damage to other equipment, etc.

Here, we will assume that multiple production lines are installed in close proximity to each other in a building such as a factory, one production line is stopped because it is being cleaned, and another production line adjacent to this one is in operation.

When cleaning is performed by spraying the foam mixture 311 onto equipment (the object to be cleaned) on a stopped production line, the foam mixture 311 may bounce back and splash onto other production lines that are still in operation. This should not occur due to factors such as the fact that the foam mixture 311 contains detergent.

The present invention aims to provide an attachment for a discharge port that can improve the usability of a foam mixture discharge gun by controlling the discharge direction of the foam mixture discharged from the foam mixture discharge gun.

The invention described in claim 1 comprises an attachment main body formed in a cylindrical shape, through which a foamy mixture flows, and a first discharge direction changer installed on the attachment main body for changing the direction in which the foamy mixture flows so that at least a portion of the foamy mixture discharged from the discharge port of the attachment main body flows in a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body at a first angle, in a direction away from the attachment main body, and further in a direction toward one side as viewed in the extension direction of the central axis of the cylindrical attachment main body , the attachment main body having an external appearance formed in a truncated cone shape and an internal space having an external appearance of a cone. The first discharge direction changer is formed in a truncated cone shape smaller than the base, and the small circular opening in the internal space of the truncated cone shape serves as the discharge outlet for the foamy mixture, and the first discharge direction changer is composed of a cylindrical first discharge direction changer main body and a cylindrically formed arc-shaped protrusion that protrudes from the opening on one side of the first discharge direction changer main body, curving in a manner that draws an arc with an acute central angle, and the first discharge direction changer is an attachment for a discharge outlet configured so that the attachment main body is inserted into the cylindrical first discharge direction changer main body, and the arc-shaped protrusion protrudes from the attachment main body and is installed on the attachment main body .

The invention described in claim 2 is an attachment for an outlet as described in claim 1, which is formed in a cylindrical shape, is installed on the first discharge direction changing part so as to cover the first discharge direction changing part, and has a second discharge direction changing part that changes the discharge direction of the foam mixture discharged from the first discharge direction changing part, which flows in a direction perpendicular to the direction in which the foam mixture flows within the attachment main body, to a direction that intersects at a second angle with the extension direction of the central axis of the cylindrical attachment main body.

The invention described in claim 3 is the attachment for an ejection outlet described in claim 2, wherein the second ejection direction change part is formed in a cylindrical shape whose internal space is composed of a cylindrical space with a large diameter and a cylindrical space with a small diameter, and the cylindrical first ejection direction change part is inserted into the cylindrical space with a small diameter, and all of the arc-shaped protrusions of the first ejection direction change part fit into the cylindrical space with a large diameter, and is configured to be installed on the first ejection direction change part.

The invention described in claim 4 is an attachment for an outlet described in any one of claims 1 to 3, which is formed in a cylindrical shape, is installed in the attachment main body, and has an agitator that agitates the foamy mixture flowing inside to further foam it.

The invention described in claim 5 is an attachment for a discharge outlet as described in claim 4, wherein the agitator is composed of a cylindrical agitator main body and a plurality of mesh members formed into plates with fine mesh, and the plurality of mesh members are installed in the internal space of the cylindrical agitator main body at a predetermined interval in the axial extension direction of the cylindrical agitator main body so that their thickness direction coincides with the axial extension direction of the cylindrical agitator main body, and are configured so that all of the foamy mixture flowing through the internal space of the cylindrical agitator main body passes through the mesh members.

The invention described in claim 6 is an attachment for an outlet described in any one of claims 1 to 5, wherein the first outlet direction change portion is elastic, and when the foamy mixture ejected from the attachment main body portion collides with it, the colliding portion and the surrounding portions repeatedly undergo slight elastic deformation and recovery in a short cycle.

The invention described in claim 7 comprises an attachment main body formed in a cylindrical shape through which a foamy mixture flows, and a first discharge direction change unit installed on the attachment main body for changing the direction in which at least a portion of the foamy mixture discharged from the outlet of the attachment main body flows in a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body at a first angle, in a direction away from the attachment main body, and further in a direction toward one side when viewed in the extension direction of the central axis of the cylindrical attachment main body.
wherein the attachment body does not have a hole for sucking air .

The present invention has the effect of providing an attachment for a discharge port that can improve the usability of a foam mixture discharge gun by controlling the discharge direction of the foam mixture discharged from the foam mixture discharge gun.

FIG. 2 is a diagram showing an attachment for a discharge port according to an embodiment of the present invention, and a foam mixture discharge gun and an air mixing type foaming machine on which the attachment for a discharge port is installed. 1A is a cross-sectional view of a discharge port attachment according to an embodiment of the present invention, FIG. 1B is a view taken along line IIB in FIG. 1A, FIG. 1C is a view taken along line IIC in FIG. 1A, and FIG. 1D is a view taken along line IID in FIG. 3A and 3B are diagrams showing an attachment main body of the outlet attachment according to the embodiment of the present invention. 1A is a cross-sectional view of a first discharge direction changing portion of a discharge port attachment according to an embodiment of the present invention, FIG. 1B is a view taken along the line IVB in FIG. 1A, FIG. 1C is a view taken along the line IVC in FIG. 1A, and FIG. 1D is a view taken along the line IVD in FIG. 10A to 10C are diagrams illustrating a manufacturing process of the first discharge direction changer of the discharge port attachment according to the embodiment of the present invention. 6A is a cross-sectional view of a first discharge direction changer of the discharge port attachment according to the embodiment of the present invention, and FIG. 6B is a view taken along the line VIB in FIG. 6A. FIG. 1A is a cross-sectional view of an agitator of an attachment for a discharge port according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view of an agitator according to a modified example. 2(a) is a view similar to FIG. 2(a) and is a view for explaining the flow of the foamy mixture, and FIG. 8A is a diagram for explaining the flow of the foamy mixture when the second discharge direction changer is removed in FIG. 8A, and FIG. 8B is a view taken along the arrow IXB in FIG. 8A. 13A and 13B are diagrams showing a discharge port attachment according to a modified example. FIG. 1 shows a conventional foam mixture dispensing gun.

As shown in FIG. 1, the discharge port attachment 1 according to an embodiment of the present invention is installed and used at the discharge port 7 of a foam mixture discharge gun (foam liquid agent discharge gun) 5 that discharges a foam mixture (foam mixture) 3. As shown in FIG. 2, the discharge port attachment 1 is configured with an attachment main body part (attachment main body) 9 and a first discharge direction change part (first discharge direction change piece) 11.

The foam mixture 3 is, for example, a mixture of detergent, water, and air produced by an air mixing type foaming machine 12. The foam mixture discharge gun 5 is, for example, the same as the conventional foam mixture discharge gun main body 303. The air mixing type foaming machine 12 is, for example, the same as the conventional air mixing type foaming machine. The foam mixture discharge gun 5 and the air mixing type foaming machine 12 are, for example, a product called the Pro Twin Foam Kit by SEKO.

The attachment main body 9 is formed in a cylindrical shape, with one opening (first opening) serving as an inlet for the foamy mixture 3 discharged from the outlet 7 of the foamy mixture discharge gun 5. One opening is connected directly or indirectly to the foamy mixture outlet 7 of the foamy mixture discharge gun 5. The foamy mixture 3 discharged from the outlet 7 of the foamy mixture discharge gun 5 flows (moves) inside the cylindrical attachment main body 9. The other opening (second opening) of the attachment main body 9 serves as the outlet 13 for the foamy mixture 3.

The first discharge direction changer 11 is arranged to be installed at a location on the other opening (second opening) side of the attachment body 9. The direction of travel of at least a portion (e.g., almost all) of the foam mixture 3 discharged from the discharge port (second opening of the attachment body) 13 of the attachment body 9 is changed to the direction shown below.

That is, as shown in FIG. 9, the foam mixture 3 advances in a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body 9 at a first angle and in a direction away from the attachment main body 9.

The extension direction of the central axis of the attachment main body 9 is the left-right direction in Figure 9, and is the direction in which the foamy mixture 3 moves within the attachment main body 9. More precisely, the first angle is a first angle range, which is a range that includes an acute angle, a right angle, and an obtuse angle slightly larger than a right angle. Note that the first angle range may be a range that includes an acute angle and a right angle that does not include an obtuse angle. Furthermore, the foamy mixture 3 advances in a direction that is biased toward one side when viewed in the extension direction of the central axis of the cylindrical attachment main body 9. Note that each arrow in Figure 9 indicates the movement direction of the foamy mixture 3.

The length dimension (horizontal dimension in FIG. 3) of the cylindrical attachment body 9 is sufficiently smaller than the length dimension of the lance 307 of the conventional foam mixture discharge gun 301.

For example, as shown in FIG. 11, the length dimension of the lance 307 of the foam mixture discharge gun 301 is larger than the maximum outer dimension of the foam mixture discharge gun main body 303, and is approximately 1.5 to 4 times larger. The maximum outer dimension of the foam mixture discharge gun main body 303 is, for example, the distance from the tip of the grip 315 of the foam mixture discharge gun main body 303 to the discharge port 313.

On the other hand, the length dimension (left-right dimension in Fig. 3) of the attachment body 9 of the discharge attachment 1 is less than the maximum external dimension of the foam mixture discharge gun 5, and is approximately 0.2 to 1 times. The length dimension (left-right dimension in Figs. 2(a) and (b)) of the first discharge direction change section 11 of the discharge attachment 1 is also less than the maximum external dimension of the foam mixture discharge gun 5, and is approximately 0.1 to 1 times.

When the first discharge direction changer 11 is installed on the attachment main body 9, the length dimension of the attachment main body 9 and the first discharge direction changer 11 is equal to or less than the maximum outer dimension of the foam mixture discharge gun 5, and is approximately 0.2 to 1 times the maximum outer dimension. The maximum outer dimension of the foam mixture discharge gun 5 is, for example, the distance from the tip of the grip 15 of the foam mixture discharge gun 5 to the discharge port 7.

At least a portion of the foam mixture 3 discharged from the discharge port 13 of the attachment body 9 collides with a portion of the inner wall of the first discharge direction change section 11, changes its direction of travel, and is discharged from the discharge port 17 of the first discharge direction change section 11. Furthermore, even if the foam mixture 3 discharged from the discharge port 13 of the attachment body 9 does not collide with the inner wall of the first discharge direction change section 11, it collides with the foam mixture 3 that has bounced off the inner wall of the first discharge direction change section 11 and changes its direction of travel.

Here, for ease of explanation, the direction in which the foam mixture is discharged from the outlet of the foam mixture discharge gun is defined as the X direction (first direction), a specific direction perpendicular to the X direction is defined as the Y direction (second direction), and a direction perpendicular to the X and Y directions is defined as the Z direction.

The direction of discharge of the foam mixture 3 from the discharge port 7 of the foam mixture discharge gun 5 is the X direction, from one side to the other in the X direction (from right to left in Figures 2(a) and (b)). The direction in which the foam mixture 3 flows within the attachment main body 9 is also the X direction, from one side to the other in the X direction.

The foam mixture 3 discharged from the discharge port 7 of the foam mixture discharge gun 5 by the discharge port attachment 1 is changed in direction by the first discharge direction change unit 11 when it is slightly away in the X direction from the discharge port 13 of the attachment main body 9.

The direction in which the foam mixture 3 advances after being changed by the first discharge direction change unit 11 is referred to as the first changed direction. As shown in FIG. 9, when the first angle range is an acute angle, the first changed direction is a direction that intersects obliquely with the X direction when viewed in the Z direction, and is a direction away from the discharge port 7 of the foam mixture discharge gun 5.

When the first angle range is an obtuse angle slightly larger than a right angle, when viewed in the Z direction, the first post-change direction is a direction that intersects obliquely with the X direction and is a direction approaching the discharge port 7 of the foam mixture discharge gun 5. Also, when viewed in the X direction, the first post-change direction is a direction from one side of the Y direction to the other side.

However, since it is the foamy mixture 3 that is discharged and moves forward, as already understood, not all of the foamy mixture 3 in the first changed direction flows parallel to each other. The discharge direction of the foamy mixture 3 (particularly the discharge direction from the discharge port 17 of the first discharge direction change unit 11 of the discharge port attachment 1) is, for example, fan-shaped (a fan-shaped shape with a small central acute angle) when viewed in the Z direction or X direction, and has a certain degree of spread. To explain further, the value of the solid angle of the foamy mixture 3 discharged from the discharge port 17 of the first discharge direction change unit 11 is larger than the value of the solid angle of the foamy mixture 311 shown in Figure 11.

The attachment body 9 has an external appearance formed in a truncated cone shape, and the internal space 19 is also formed in a truncated cone shape that is smaller than the external appearance. The central axes of the two truncated cones are aligned.

The larger circular opening of the truncated cone-shaped internal space 19 serves as one of the openings mentioned above (the entrance for the foamy mixture 3), and the smaller circular opening of the truncated cone-shaped internal space 19 serves as the other opening mentioned above (the outlet 13 for the foamy mixture 3).

As shown in Fig. 2(a), Fig. 4, etc., the first discharge direction changer 11 is configured to include a cylindrical first discharge direction changer main body 21 and an arc-shaped protruding portion 23. The arc-shaped protruding portion 23 is formed in a cylindrical shape and protrudes from one side of the opening of the first discharge direction changer main body 21, bending so as to draw an arc with an acute central angle.

There is no step at the boundary between the inner wall of the tube of the first discharge direction changer main body 21 and the inner wall of the tube of the arc-shaped protrusion 23, and the inner wall of the tube of the first discharge direction changer main body 21 and the inner wall of the tube of the arc-shaped protrusion 23 are connected in such a way that the shape of the surface changes smoothly.

The arc-shaped protrusion 23 is first formed by drawing on a plane a double circle consisting of a circle with a larger diameter and a circle with a smaller diameter whose centers coincide, and a specified straight line tangent to the larger of the double circles. Next, the double circle is rotated around the specified straight line by an acute angle such as 60°. At this point, the arc-shaped protrusion 23 has a three-dimensional shape represented by the trajectory of the rotation of the double circle.

In the first discharge direction changer 11, the cross-sectional shape of the first discharge direction changer main body 21 (the double circle in the cross section taken along a plane perpendicular to the central axis of the cylinder) and the shape of the double circle used in describing the shape of the arc-shaped protrusion 23 match each other. Also, in the first discharge direction changer 11, at the boundary between the first discharge direction changer main body 21 and the arc-shaped protrusion 23, the entire double circle of the cylindrical first discharge direction changer main body 21 and the entire double circle of the arc-shaped protrusion 23 overlap each other.

Furthermore, the arc-shaped protrusion 23 may have a three-dimensional shape that is represented by the trajectory of the double circle when the double circle is rotated around a predetermined straight line slightly separated from the double circle outside the larger circle by an acute angle such as 60°.

The first discharge direction changer 11 will be further described with reference to FIG. 5, with a different expression. The first discharge direction changer 11 is obtained by bending a cylindrical material 25 at a right angle in the middle, for example, and dividing this right-angled portion into two objects with a single plane 27 that is developed diagonally. One of the two objects becomes the first discharge direction changer 11.

As shown in FIG. 2, the first discharge direction changer 11 is configured such that the attachment body 9 is inserted into the cylindrical first discharge direction changer body 21, and the arc-shaped protrusion 23 protrudes from the attachment body 9 and is installed on the attachment body 9.

As shown in Figs. 2 and 8, the discharge port attachment 1 also has a second discharge direction changer (second discharge direction changer piece) 29. The second discharge direction changer 29 is formed in a cylindrical shape and is installed on the first discharge direction changer 11 (attachment body) 9 so as to cover and conceal the first discharge direction changer 11.

The second discharge direction change unit 29 changes the discharge direction of the foam mixture 3 discharged from the discharge port 17 of the first discharge direction change unit 11, which flows in a direction perpendicular to the X direction (Y direction), to the direction shown below. That is, it changes the direction indicated by the arrow A81 in FIG. 8 to the direction indicated by the arrow A82 in FIG. 8. Note that the direction perpendicular to the X direction also includes a direction that intersects at an obtuse angle close to a right angle or an acute angle.

The above-mentioned next direction of the discharge direction changer 29 of No. 2 is a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body 9 at a second angle (second angle range; acute angle).

To explain further, the direction of travel of the foam mixture 3 changed by the second discharge direction change unit 29 is referred to as the second changed direction. When viewed in the Z direction, the second changed direction is a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body 9 at a second angle (second angle range; acute angle). It also points away from the attachment main body 9. When viewed in the X direction, the second changed direction is also a direction toward one side, similar to the first changed direction.

The solid angle of the foam mixture 3 discharged from the outlet 47 of the second discharge direction change unit 29 is greater than the solid angle of the foam mixture 311 shown in FIG. 11. Furthermore, it is slightly smaller than the solid angle of the foam mixture 3 discharged from the outlet 13 of the first discharge direction change unit 11 (see FIG. 9).

The length dimension of the second discharge direction change section 29 of the discharge port attachment 1 is approximately the same as the length dimension of the first discharge direction change section 11.

When the first discharge direction changer 11 and the second discharge direction changer 29 are installed on the attachment body 9, the length dimension of the second discharge direction changer 29, etc. is equal to or less than the maximum external dimension of the foam mixture discharge gun 5, and is approximately 0.3 to 1 times.

As shown in FIG. 6, the second discharge direction changer 29 is formed in a cylindrical shape with an internal space consisting of a large-diameter cylindrical space 31 and a small-diameter cylindrical space 33. The cylindrical first discharge direction changer main body 21 of the first discharge direction changer 11 is inserted into the small-diameter cylindrical space 33. The entire arc-shaped protrusion 23 of the first discharge direction changer 11 fits into the large-diameter cylindrical space 31, and the second discharge direction changer 29 is configured to be installed in the first discharge direction changer 11 (attachment main body 9).

The discharge attachment 1 is also configured with an agitator 35 as shown in FIG. 7. The agitator 35 is formed in a cylindrical shape. One opening (first opening) of the agitator 35 is directly connected to the discharge port 7 of the foam mixture discharge gun 5, and the other opening (second opening) is directly connected to the inlet of the foam mixture 3 of the attachment main body 9.

That is, the agitator 35 is installed between the foam mixture discharge gun 5 and the attachment main body 9, and is designed to further foam the foam mixture 3 flowing inside by agitating it. The length dimension of the agitator 35 is approximately the same as the length dimension of the first discharge direction change section 11.

As shown in FIG. 7(a), the agitator 35 is composed of a cylindrical agitator body 37 and a number of (e.g., two) mesh members (e.g., mesh filters) 39 formed into a plate shape with a fine mesh.

The multiple mesh members 39 are installed in the internal space of the cylindrical agitator body 37 at a predetermined interval in the axial extension direction of the cylindrical agitator body 37, with their thickness direction coinciding with the axial extension direction of the cylindrical agitator body 37. All of the foamy mixture 3 flowing through the internal space of the cylindrical agitator body 37 is configured to pass through the mesh members 39.

The first discharge direction change section 11 is made of a material such as synthetic rubber, and is therefore elastic. When the foam mixture (the foam mixture discharged in the form of a turbulent flow) 3 discharged from the attachment main body 9 collides with it, the colliding area and the areas nearby repeat slight elastic deformation and restoration in a short cycle.

In contrast, the attachment body 9 and the second discharge direction change part 29 other than the first discharge direction change part 11 are made of synthetic resin with high rigidity (having rigidity that can be considered as a rigid body in the present invention), so the above-mentioned elastic deformation and restoration are hardly repeated.

Here, we will explain the outlet attachment 1 in more detail.

As shown in FIG. 1, the foam mixture discharge gun 5 is connected to the air mixer 12 by a flexible piping member 41, and receives a supply of the foam mixture 3 from the air mixer 12.

The foam mixture discharge gun 5 is equipped with a discharge port attachment 1. When the air mixing type foaming machine 12 is in operation and the operation part 43 of the foam mixture discharge gun 5 is rotated as shown by the arrow, the foam mixture 3 is discharged from the discharge port attachment 1.

As shown in FIG. 3, the attachment body 9 has a male thread 45 formed at one end, and the outlet 7 of the foam mixture discharge gun 5 has a female thread (not shown). Furthermore, the agitator 35 also has an appropriate thread (not shown).

The agitator 35 is attached integrally to the foam mixture discharge gun 5 by the screw portion, and the attachment body 9 is attached integrally to the agitator 35. When the agitator 35 is not used, the male screw portion 45 of the attachment body 9 is screwed into the female screw portion of the foam mixture discharge gun 5, so that the attachment body 9 is attached integrally to the foam mixture discharge gun 5.

As shown in FIG. 2, when the first discharge direction changer 11 and the second discharge direction changer 29 are installed on the attachment main body 9, the end of the first discharge direction changer main body 21 is sandwiched between the attachment main body 9 and the second discharge direction changer 29 and elastically deformed. The biasing force of the first discharge direction changer 11 causes the attachment main body 9, the first discharge direction changer 11, and the second discharge direction changer 29 to be integrated.

When viewing the outlet attachment 1 from one side to the other side in the X direction, as shown in FIG. 2(c), the outlet 17 of the first outlet direction changer 11 is inside the outlet 47 of the second outlet direction changer 29, and the entire outlet 17 is visible. Also, through the outlet 17, the lower portion of the outlet 13 of the attachment body 9 is visible, and the upper portion is hidden by the first outlet direction changer 11.

Next, we will explain the operation of the air mixing type foaming machine 12 shown in Figure 1 and the foam mixture discharge gun 5 on which the discharge attachment 1 is installed.

In the initial state, the air mixing type foaming machine 12 is operating, but the foam mixture 3 is not being discharged from the foam mixture discharge gun 5.

In the above initial state, when the operating part 43 of the foam mixture discharge gun 5 is rotated in the direction indicated by the arrow, the foam mixture 3 is discharged from the foam mixture discharge gun 5, and the foam mixture 3 is discharged from the discharge port attachment 1.

In the discharge attachment 1, the first discharge direction changer 11 causes the foam mixture 3 discharged from the discharge outlet 13 of the attachment body 9 to move in a direction that intersects with the extension direction of the central axis of the cylindrical attachment body 9 at a first angle.

In addition, in the discharge port attachment 1, the first discharge direction change part 11 causes the foam mixture 3 discharged from the discharge port 13 of the attachment main body part 9 to move in a direction away from the attachment main body part 9.

Furthermore, in the discharge port attachment 1, the first discharge direction changer 11 causes the foam mixture 3 discharged from the discharge port 13 of the attachment body 9 to move in a direction toward one side as viewed in the extension direction of the central axis of the cylindrical attachment body 9.

This allows the direction of the foam mixture 3 discharged from the foam mixture discharge gun 5 to be controlled, making the foam mixture discharge gun 5 easier to use.

By controlling the ejection direction of the foam mixture 3 ejected from the foam mixture ejection gun 5, it is possible to control, for example, the rebound direction of the foam mixture 3 that hits the object to be cleaned, thereby preventing contamination of other equipment, etc., other than the object to be cleaned.

It is also assumed that multiple production lines are installed in close proximity to each other in a building such as a factory, one production line is stopped due to being subject to cleaning, and another production line adjacent to this one is in operation.

In this case, when the foam mixture is sprayed onto the equipment (to be cleaned) of one stopped production line, the foam mixture is prevented from bouncing back and splashing onto other production lines that are in operation.

Furthermore, the longitudinal dimension of the outlet attachment 1 is small, and the direction of movement of the foam mixture 3 discharged from the outlet 7 of the foam mixture discharge gun 5 is changed by the outlet attachment 1. This weakens the momentum of the foam mixture 3 discharged from the outlet of the outlet attachment 1, which also makes the foam mixture discharge gun 5 easier to use.

In addition, the length dimension of the discharge attachment 1 is sufficiently smaller than the length dimension of the lance 307 of the conventional foam mixture discharge gun 301. This makes it easier to handle the foam mixture discharge gun 5 on which the discharge attachment 1 is installed, and improves usability.

In addition, in the discharge port attachment 1, the first discharge direction changer 11 is configured such that the attachment body 9 is inserted into the cylindrical first discharge direction changer body 21. Also, the arc-shaped protrusion 23 protrudes from the attachment body 9 and is configured to be installed on the attachment body 9. This allows the length dimension of the discharge port attachment 1 to be further reduced, making it even easier to use.

In addition, the attachment body 9 and the first discharge direction change part 11 are constructed as separate bodies. This makes it easy to adjust the rotation angle of the first discharge direction change part 11 relative to the foam mixture discharge gun 5 (attachment body 9), and makes it easy to adjust the discharge direction of the foam mixture 3 (discharge direction when viewed in the X-axis direction).

In addition, in the discharge port attachment 1, the second discharge direction changer 29 is installed on the first discharge direction changer 11 (attachment body 9) so as to conceal and cover the first discharge direction changer 11. This makes it difficult to see the configuration of the first discharge direction changer 11 from outside the discharge port attachment 1, preventing a third party from copying the discharge port attachment 1 when they see it.

In addition, in the discharge port attachment 1, the second discharge direction change unit 29 is configured to change the discharge direction of the foam mixture 3 discharged from the first discharge direction change unit 11, which flows in a direction perpendicular to the X direction.

That is, the second discharge direction changer 29 changes the discharge direction of the foam mixture 3, which flows in the perpendicular direction described above, to a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body 9 at a second angle.

As a result, for example, when using a foam mixture discharge gun 5 with a discharge port attachment 1 with the left-right direction of the paper in FIG. 2(a) as the horizontal direction, the following occurs: The foam mixture 3 coming out of the discharge port 13 of the first discharge direction change part 11 of the discharge port attachment 1 does not splash downward, and the usability of the foam mixture discharge gun 5 is further improved.

In addition, in the discharge port attachment 1, the second discharge direction changer 29 is formed in a cylindrical shape and is configured to be installed in the first discharge direction changer 11 (attachment body 9). This makes it easy to install the second discharge direction changer 29 and allows the first discharge direction changer 11 to be concealed accurately.

In addition, the agitator 35 in the discharge attachment 1 agitates the foam mixture 3 flowing inside, creating even more foam. This allows a high-quality shaving cream-like foam (foam mixture 3) to be discharged from the discharge attachment 1.

In addition, the agitator 35 can reduce the force of the foam mixture 3 being discharged from the outlet of the outlet attachment 1.

In addition, in the discharge attachment 1, the agitator 35 is formed in a plate shape with a cylindrical agitator body 37 and a fine mesh member 39. This makes it possible to obtain a high-quality foamy mixture 3 like shaving cream with a simple structure.

In addition, in the discharge port attachment 1, the first discharge direction change section 11 has elasticity, and is designed to collide with the foamy mixture 3 discharged from the attachment main body section 9. The collided area and the area nearby are configured to repeat slight elastic deformation and restoration in a short cycle.

This further reduces the force of the foam mixture 3 being discharged from the outlet of the outlet attachment 1.

In addition, the first discharge direction change part 11, which is made of synthetic rubber, is covered with the second discharge direction change part 29, which is made of highly rigid synthetic resin, so the first discharge direction change part 11, which is easily damaged, is protected.

As shown in FIG. 10(a), the discharge attachment 1 may be constructed by integrating the attachment body 9, the first discharge direction changer 11, and the second discharge direction changer 29. This allows the discharge attachment 1 to be easily and quickly attached to and detached from the foam mixture discharge gun 5. The discharge attachment 1 shown in FIG. 10(a) is constructed of a highly rigid resin or the like.

Also, as shown in FIG. 7(b), the agitator body 37 of the agitator 35 may be divided into several parts (for example, into two). In this case, one mesh member 39 is provided for each agitator body 37.

Also, as shown in FIG. 9, the second discharge direction changer 29 does not have to be used. Furthermore, the agitator 35 may be omitted and not used. Furthermore, when the second discharge direction changer 29 is not used, the attachment main body 9 and the first discharge direction changer 11 may be configured as one unit, as shown in FIG. 10(b).

The above-mentioned outlet attachment 1 is an example of an outlet attachment that has an outlet for discharging a foam mixture and is installed on a foam mixture discharge gun to weaken the force of the foam mixture being discharged from the outlet, and to change the direction of the foam mixture being discharged from the outlet to a predetermined direction (first changed direction) different from the direction of the foam mixture being discharged from the outlet of the foam mixture discharge gun, in order to efficiently apply the foam mixture to the object being washed by directing the direction of the foam mixture being discharged from the outlet downward while the foam mixture discharge gun is discharging the foam mixture horizontally from the outlet.

1 Attachment for outlet 3 Foamy mixture 5 Foamy mixture outlet gun 7 Outlet (outlet of foamy mixture outlet gun)
9 Attachment body part 11 First discharge direction change part 13 Discharge port (discharge port of attachment body part)
19 Internal space (internal space of attachment body)
21 First discharge direction changer main body 23 Arc-shaped protrusion 29 Second discharge direction changer 31 Large-diameter cylindrical space 33 Small-diameter cylindrical space 35 Stirrer 37 Stirrer main body 39 Mesh-like member

Claims (7)

an attachment body portion formed in a cylindrical shape and through which the foam mixture flows;
a first discharge direction changer that is installed on the attachment main body and changes the direction in which at least a portion of the foam mixture discharged from the discharge port of the attachment main body moves in a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body at a first angle, away from the attachment main body, and toward one side as viewed in the extension direction of the central axis of the cylindrical attachment main body;
The attachment body has an external appearance formed in a truncated cone shape, and an internal space formed in a truncated cone shape smaller than the external truncated cone shape, and a small circular opening of the internal space of the truncated cone shape serves as a discharge port for the foam mixture,
the first discharge direction changer is configured to include a cylindrical first discharge direction changer main body and an arc-shaped protruding portion that is formed in a cylindrical shape and protrudes from one side of the first discharge direction changer main body from an opening portion of the first discharge direction changer main body while curving to describe an arc having an acute central angle;
The first discharge direction change part is an attachment for a discharge port that is configured such that the attachment main body part is inserted into the cylindrical first discharge direction change part main body part, and the arc-shaped protrusion part protrudes from the attachment main body part and is installed on the attachment main body part. The attachment for a discharge port according to claim 1, which has a second discharge direction change part that is cylindrical, is installed on the first discharge direction change part so as to cover the first discharge direction change part, and changes the discharge direction of the foam mixture discharged from the first discharge direction change part, which flows in a direction perpendicular to the direction in which the foam mixture flows within the attachment main body, to a direction that intersects at a second angle with the extension direction of the central axis of the cylindrical attachment main body. The second discharge direction changer is formed in a cylindrical shape with an internal space consisting of a large-diameter cylindrical space and a small-diameter cylindrical space, and the cylindrical first discharge direction changer is inserted into the small-diameter cylindrical space, and all of the arc-shaped protrusions of the first discharge direction changer fit into the large-diameter cylindrical space, and is configured to be installed in the first discharge direction changer. The discharge port attachment according to claim 2. The attachment for a discharge port according to any one of claims 1 to 3 has a cylindrical shape, is installed in the attachment body, and has an agitator that agitates the foamy mixture flowing inside to create more foam. The stirring body is configured to include a cylindrical stirring body main body and a plurality of mesh members formed into a plate shape with fine mesh,
The attachment for a discharge outlet as described in claim 4, wherein the multiple mesh members are installed in the internal space of the cylindrical agitator body main body at a predetermined interval in the axial extension direction of the cylindrical agitator body main body, with their thickness direction coinciding with the axial extension direction of the cylindrical agitator body main body, and are configured so that all of the foam-like mixture flowing through the internal space of the cylindrical agitator body main body passes through the mesh members. The attachment for a discharge port according to any one of claims 1 to 5, wherein the first discharge direction change section has elasticity, and is configured so that when the foam mixture discharged from the attachment body section collides with the first discharge direction change section, the collided area and the area nearby repeat slight elastic deformation and restoration in a short cycle. an attachment body portion formed in a cylindrical shape and through which the foam mixture flows;
a first discharge direction changer that is installed on the attachment main body and changes the direction in which at least a portion of the foam mixture discharged from the discharge port of the attachment main body moves in a direction that intersects with the extension direction of the central axis of the cylindrical attachment main body at a first angle, away from the attachment main body, and toward one side as viewed in the extension direction of the central axis of the cylindrical attachment main body;
wherein the attachment body does not have a hole for sucking air .

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