JPH04363162A - Forming nozzle for fitting atomizer - Google Patents

Abstract

PURPOSE:To efficiently use the spouted foams by fitting a foaming nozzle to a spin type atomization nozzle and spouting foams by operation of tone atomizer and constituting the foaming nozzle so that the spouted foams have cross sections of an elliptical shape and also the foams are largely dispersed and spouted in comparison with the conventional manner. CONSTITUTION:A foaming nozzle 8 is formed into an ellipse-shaped cylinder. A mist group 31 is spin-spouted by operation of an atomizer. The whole high- density ringlike mist part 32 of the outer circumference of the mist group 31 is allowed to collide and foamed. Further in the circumferential wall parts 8b, 8b of the short diameter side, the whole body approaches and passes while it is not nearly allowed to collide.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foaming nozzle that is attached to, for example, a spin-type spray nozzle of a trigger-type sprayer.

0002

[Prior Art] For example, as shown in Japanese Utility Model Application No. 63-69579, when a foaming nozzle is attached to the spin-type spray nozzle of a trigger-type sprayer and the trigger of the sprayer is pulled, a group of mist is spun out from the spray nozzle. A device is known in which the foam collides with the inner wall surface of the foaming nozzle mouth, foams when mixed with outside air, and is ejected from the foaming nozzle mouth as a group of bubbles.

0003

[Problems to be Solved by the Invention] The above-mentioned conventional foaming nozzle is formed into a perfectly circular cylinder, and when a trigger-type sprayer equipped with the nozzle is operated, a group of mist is ejected through a spin passage of the sprayer. The outer periphery collided with the inner surface of the foaming nozzle and foamed, forming a group of circular bubbles and ejecting. In addition, since the amount of mist ejected by a trigger type atomizer is substantially fixed with one trigger operation, the above-mentioned bubbles are ejected in clusters. Therefore, for example, when spraying detergent onto a window glass, the bubbles form a circular mass and adhere to it. Therefore, if you spray the detergent directly to the corner of the window glass, it will spill out to the surrounding area and adhere to the window frame, etc. Also, since the bubbles are lumpy, the adhesion range of the bubbles is relatively small.

[0004] Also, for example, mold grows in the white joints between tiles that are pasted in a bathroom, and they tend to get dirty, so to remove mold, a mold removal detergent is sprayed, but in this case as well, the area where the bubbles are attached is circular. If it is more slender than that, the range of adhesion to the joint can be expanded.

The present invention eliminates such drawbacks and makes the foaming nozzle an elliptical cylinder, so that the ejected bubbles can be formed into a horizontally elongated band or an ellipse, and whether the middle part is continuous or not continuous. The bubbles are made to adhere to one small circular shape, etc., and the group of bubbles becomes a mixed group of mist and bubbles, so that the adhering range of the mixed group is expanded, thereby causing the bubbles to adhere to the corners of the window glass, etc. Eliminates adhesion to window frames etc. when spraying,
Furthermore, the foam can be applied to a suitable area, and it is possible to freely select between such foam jetting and the conventional circular foam jetting.

[0006]

[Means for Solving the Problems] A foaming nozzle 8 is attached to the front end of a spin-type spray nozzle 1 of a sprayer on the same axis as the spray nozzle, and the foaming nozzle 8 is formed into an elliptical cylinder to operate the sprayer. A high-density ring-shaped fog portion 3 on the outer periphery of the fog group 31 spin-sprays from the spray hole 4 in a hollow conical shape.
2 collides in its entirety with the inner surface of both peripheral walls 8a, 8a on the short diameter side of the foaming nozzle, and approximately against the inner surface of both peripheral walls 8b, 8b on the long diameter side of the foaming nozzle. The entire structure was formed so that they could pass closely together without colliding.

[0007] Baffle plates 13, 13 are provided protruding from the intermediate portions of both minor diameter side peripheral wall portions of the foaming nozzle at appropriate intervals in opposing directions.

[0008] A partition plate 14 that divides the nozzle hole into two is attached between the intermediate portions of both peripheral walls on the short diameter side of the foaming nozzle.

[0009] On the front end surface of both peripheral walls on the short diameter side of the foaming nozzle,
An arcuate recess 15 is provided at the intermediate portion in the long diameter direction of both the short diameter side circumferential wall portions, with which almost the entire high density ring-shaped fog portion 32 collides, and the collision portion decreases as it approaches both ends in the long diameter direction. was drilled.

[0010] Arc-shaped protrusions 16 were attached to the front ends of both peripheral walls on the short diameter side of the foaming nozzle.

[0011] A plurality of grooves 17 are provided in the short length of the foaming nozzle to disperse the high-density ring-shaped fog portion or the bubbles generated when the fog portion collides with the inner wall surface of the foaming nozzle toward the front of the foaming nozzle. Perforations were made on the inner surface of both peripheral walls on the radial side.

[0012] In the foaming nozzle attached to the front end of the spin-type spray nozzle of the sprayer, the foaming nozzle is attached to the first foaming nozzle 18 having an elliptical cylinder, and the foaming nozzle is connected to the first foaming nozzle in front of the first foaming nozzle. The second foaming nozzle is directly or indirectly pivoted to the first foaming nozzle 18, and the second foaming nozzle is formed by a second foaming nozzle 19 having a perfectly circular cross section. A second foaming nozzle 19 was formed to be detachably attached to the first foaming nozzle.

[0013]

[Operation] When a spraying operation is performed with the spray nozzle 2 facing forward, the liquid passes through the known spin passage 4 provided inside the spray hole 3, and is spouted forward while rotating at high speed. Many of the mist particles atomized by the high-speed rotation draw a spiral trajectory that increases in diameter as they move away from the spray hole due to the centrifugal force caused by the high-speed rotation, resulting in a fog group formed by all the mist particles. No. 31 is ejected in a substantially hollow conical shape at a constant ejection angle. In other words, due to the action of the centrifugal force, the fog group is ejected in a circular cross-sectional shape, with the outer periphery being a high-density ring-shaped fog portion 32 and the inner portion surrounded by the outer periphery being a thinner mist portion. .

The fog group 31 moves inside the foaming nozzle 8 installed on the same axis as the spray nozzle 1, as shown in FIG. 9A. When the outer periphery of the ring-shaped fog portion 32 collides with the inner surface of the foaming nozzle hole 10 outward, as shown in FIG. 9B, only the collided fog portion foams, and the foam is ejected without colliding. When the ring-shaped mist part mixes with the inner mist part that is about to be mixed with the ring-shaped mist part as shown in FIG. The fog portion and the foam are mixed when ejected from the foaming nozzle hole 10, and the foam is ejected at the widest angle in the case of FIG. 9A, as shown by the blank arrow 39 in each figure in FIG.

The foaming nozzle 8 is an elliptical cylinder, and the long-diameter peripheral wall portions 8b located on both sides in the long-diameter direction prevent the high-density ring-shaped fog portions 32 from colliding with each other as shown in FIG. 9A. In the side peripheral wall portion 8a, the entire portion collides as shown in Fig. 9C, and furthermore, in the intermediate peripheral wall portion between both peripheral wall portions, only the outer periphery of the high-density ring-shaped fog portion collides as shown in Fig. 9B. By colliding with each other, the foam mixture group 35 ejected from the foaming nozzle has a band-like cross section as shown in FIG. baffle plate 13 from the middle part of
13 protrudes in opposite directions, or by connecting both baffle plates to divide the foaming nozzle hole into two, as shown in FIGS. It can be made into two small circular parts that are continuous or non-continuous, and furthermore, an arcuate recess 15 can be provided on the front end face of the foaming nozzle to adjust the collision range of the ring-shaped mist part, or the front end of the short diameter side peripheral wall part 8a can be formed. By attaching an arcuate protrusion portion 16 to the surface, the cross-sectional shape of the mixed group of mist and bubbles can be changed to an ellipse or a cocoon shape, as shown in FIGS. 5A and 6A. Furthermore, by providing a ring-shaped mist portion or a plurality of bubble guiding grooves on the inner surface of the short side circumferential wall portion, as shown in FIG. 7A, a portion with high bubble density can be distributed over the entire band-shaped ejection range. I can do it. Furthermore, as shown in FIG. 8, if the foaming nozzle is formed of a first foaming nozzle having an elliptical tube and a second foaming nozzle having a perfect circular cross section and detachably pivoted in front of the first foaming nozzle, By attaching and detaching the second foaming nozzle, the cross-sectional shape of the foam mixing group can be freely changed from a perfect circle to a band shape.

[0016]

[Embodiment] First, the first embodiment shown in FIGS. 1 and 2 will be explained. 1 is a spray nozzle of a trigger type sprayer;
The nozzle is fitted, for example, to the front part of the liquid ejection tube 2 of a trigger type sprayer. A known spin passage 3 is formed on the front end surface of the jet tube, and a spray hole 4 is formed at the center of the front end surface of the spray nozzle in communication with the passage. A cylindrical portion 5 into which a member 6 with a foaming nozzle is fitted is projected forward.

The member 6 with a foaming nozzle has a rectangular base plate 7 that is fitted into the cylindrical part 5, and an elliptical through hole elongated in the left and right direction is bored in the center of the base plate 7, and the through hole is formed in the central part of the base plate 7. A foaming nozzle 8 in the form of an elliptical cylinder is projected forward from the periphery of the hole. Outside air introduction holes 9, 9 are bored in the base plate portions of both the upper and lower parts of the nozzle, and from the outer periphery of the base plate 7, the outside air introduction holes 9, 9 and the foaming nozzle hole 10 are connected to the rear of the member 6 with the foaming nozzle. A cylindrical portion 11 for forming a gap that communicates with the spray hole 4 is bored rearward. The foaming nozzle and the spray nozzle 1 are provided on the same axis. In addition, a high-density ring-shaped mist portion 32 on the outer periphery of the mist group 31 spins out from the spray hole 4 in a hollow conical shape when the sprayer is operated.
Short diameter side circumferential wall portions 8a located on both sides of the foaming nozzle in the short diameter direction
, 8a, the entire portion collides with the inner surface of the peripheral wall portion, as shown in FIG. 9C, and in the longer diameter side peripheral wall portions 8b, 8b located on both sides of the longer diameter side, as shown in FIG. 9A, almost the entire portion does not collide. It is set up to pass through.

In the illustrated example, the diameter of the foaming nozzle hole 10 in the longitudinal direction is 9 mm, the diameter in the lateral direction is 3.5 mm, and the length of the foaming nozzle is 4 mm.

When the spraying operation is performed in the above configuration, the bubbles generated by colliding with the inner surface of the foaming nozzle 8 mix with the mist, especially the high-density ring-shaped fog portion 12a, which attempts to pass through the foaming nozzle hole 10 without colliding. The mixed group 35 is ejected in a band-like cross-section that becomes larger as it moves away from the foaming nozzle. In this case, there are many bubbles at both ends of the cross-sectional band-like portion, and the middle portion is in a diluted state. Although the reason for this is not clear, it is thought that the bubbles generated in the peripheral wall portion on the shorter side are attracted to the fog portion that is about to scatter at high speed.

In the second embodiment shown in FIG. 3, baffle plates 13, 13 are formed to protrude briefly from the upper and lower middle portions of both minor diameter side circumferential walls 8a, 8a of the foaming nozzle in opposite directions. When this foaming nozzle is attached and ejected in the same manner as in the first embodiment, the middle part becomes even thinner than in the case of FIG. 2A, and the density at both left and right end parts becomes higher.

In the third embodiment shown in FIG. 4, a partition plate 1 is provided in the middle of the foaming nozzle hole 10 in the longitudinal direction to divide the nozzle hole into two.
4 was constructed. By doing so, the mixed group of mist and foam ejected from the nozzle hole is divided into two circular parts 36, which are ejected simultaneously to the left and right with an interval, as shown in FIG. 4A.
It can be set to 36.

In the fourth embodiment shown in FIG. 5, an arc-shaped recess 15 is provided in the front surface of the shorter side circumferential wall portion of the front end face of the foaming nozzle 8, and is located midway in the longitudinal direction of the shorter side circumferential wall portions 8a. Almost the entire high-density ring-shaped fog portion 32 collides with the front part of the nozzle hole, and the short side peripheral wall portions 8a, 8
The collision portion 33 is made to decrease as it gets closer to both ends of a, and the ring-shaped fog portion 32 is provided to pass through the longer diameter side peripheral wall portion 8b without colliding. In this case, as shown in FIG. 5A, a substantially horizontally oblong elliptical mixed foam group 35 is ejected. In the case of this embodiment, since the ring-shaped mist portion 32 that does not directly collide with the inner surface of the foaming nozzle hole 10 increases, the jetting angle of the mixed group of mist bubbles ejected from the foaming nozzle hole 10 becomes large. The spread becomes larger.

In the fifth embodiment shown in FIG. 6, an arcuate protruding portion 16 is attached to the front end of the short side circumferential wall portion 8a, and
The ring-shaped fog portion 32 is provided in the long-diameter side peripheral wall portion 8b so as to pass therethrough. Therefore, on the inner surface of the shorter circumferential wall portion 8a, even after colliding with the inner surface of the circumferential wall portion and foaming, a group of bubbles will be pushed out along the inner surface of the protruding portion 16, and on the longer diameter side circumferential wall portion 8b. The bubbles are attracted to the ring-shaped fog part that scatters at high speed to
As shown, the mixed foam group 35 is spouted in a cocoon shape.

A sixth embodiment shown in FIG. 7 has a plurality of grooves 17 distributed radially from the rear to the front on the inner surface of the circumferential wall portion on the shorter side.
... is provided, and as shown in FIG. 7A, by drilling these grooves, the mist foam mixture group 35 is ejected in a band shape, and the high-density mist foam mixture group 37 is distributed at approximately equal intervals. This is how it was set up.

Although the front end surface of the peripheral wall portion on the shorter side is an arcuate recess 15, the front end surface may be a flat surface perpendicular to the axis as in the embodiments shown in FIGS. 1 and 2. In addition, in the illustrated example, the groove 17 is provided from the rear end of the foaming nozzle to the middle or front, and is not provided at the front part. This is to facilitate extraction, and for this purpose, the inner surface of the foaming nozzle in which the groove is bored has a tapered surface with a small diameter at the rear end.

In the embodiment shown in FIG. 8, the upper part of the cylindrical part 5 into which the member 6 with a foaming nozzle is fitted is cut out, and a second nozzle hole having a perfect circular cross section is formed in the front part of the cylindrical part. The rear part of the foaming nozzle 19 is fitted and the cylindrical part 5 is inserted into the notch.
and the rear part of the second foaming nozzle 18 are pivotally connected so that the second foaming nozzle can be freely undulated. In this embodiment, the first foaming nozzle 18 and the second foaming nozzle 19 included in the member 6 with a foaming nozzle form the entire foaming nozzle, and the first foaming nozzle is an elliptical cylinder, and the foam is ejected from the first foaming nozzle. In addition, the mist foam mixture having an elliptical cross section or a band shape can be changed to a perfectly circular cross section by attaching the second foaming nozzle, if necessary. The cross-sectional shape of the group can be freely changed to a perfect circle, an ellipse, a band, etc. The first foaming nozzle 18 of this embodiment has a groove 17 on the inner surface of the nozzle, as shown in FIG.
However, other foaming nozzles shown in the first to fifth embodiments may be used. The cylindrical portion 5 and the second foaming nozzle 19 are provided with a locking hole 21 and a protrusion 22 for holding the position when the second foaming nozzle is rotated and tilted upward. There is. In the illustrated example, the outer cylinder 19a protrudes from the rear of the second foaming nozzle in a double-cylindrical shape.

[0027]

[Effects of the Invention] In the present invention, since the foaming nozzle of the above-described structure is attached to the front end of the spin-type spray nozzle of the sprayer,
By operating the atomizer, it is possible to eject a foam mixture group 35 with a cross-sectional shape in which horizontally long or two circular parts are connected by a thin part, or they are not connected, so that the sprayed foam can be sprayed onto the sprayed surface corresponding to the shape. This is to facilitate the removal of the molding die during installation, and for this purpose, the inner surface of the foaming nozzle in which the groove is bored has a tapered surface with a small diameter at the rear end.

In the embodiment shown in FIG. 8, the upper part of the cylindrical part 5 into which the member 6 with a foaming nozzle is fitted is cut out, and a second nozzle hole having a perfect circular cross section is formed in the front part of the cylindrical part. The rear part of the foaming nozzle 19 is fitted and the cylindrical part 5 is inserted into the notch.
and the rear part of the second foaming nozzle 18 are pivotally connected so that the second foaming nozzle can be freely undulated. In this embodiment, the first foaming nozzle 18 and the second foaming nozzle 19 included in the member 6 with a foaming nozzle form the entire foaming nozzle, and the first foaming nozzle is an elliptical cylinder, and the foam is ejected from the first foaming nozzle. In addition, the mist foam mixture having an elliptical cross section or a band shape can be changed to a perfectly circular cross section by attaching the second foaming nozzle, if necessary. The cross-sectional shape of the group can be freely changed to a perfect circle, an ellipse, a band, etc. The first foaming nozzle 18 of this embodiment has a groove 17 on the inner surface of the nozzle, as shown in FIG.
However, other foaming nozzles shown in the first to fifth embodiments may be used. The cylindrical portion 5 and the second foaming nozzle 19 are provided with a locking hole 21 and a protrusion 22 for holding the position when the second foaming nozzle is rotated and tilted upward. There is. In the illustrated example, the outer cylinder 19a protrudes from the rear of the second foaming nozzle in a double-cylindrical shape.

[0029]

[Effects of the Invention] In the present invention, since the foaming nozzle of the above-described structure is attached to the front end of the spin-type spray nozzle of the sprayer,
By operating the atomizer, it is possible to eject a foam mixture group 35 with a cross-sectional shape in which horizontally long or two circular parts are connected by a thin part, or they are not connected, so that the sprayed foam can be sprayed onto the sprayed surface corresponding to the shape. It is possible to eliminate waste during attachment. Also, a group of mist 3 that spins out from the spray nozzle.
The high-density ring-shaped mist portion 32 of 1 collides with the foaming nozzle at both shorter diameter side circumferential wall portions 8a, 8a, and almost entirely collides with the longer diameter side circumferential wall portions 8b, 8b of the foaming nozzle. Since the spray can pass close to the sprayed surface without causing any mist, the spraying angle of the mixed group can be increased by mixing the mist and foam, and the range of adhesion to the surface to be sprayed can be expanded. Further, the foaming nozzle is formed by a first foaming nozzle 18 having an elliptical shape and a second foaming nozzle 19 having a perfect circular cross section,
By making the second foaming nozzle 19 detachable from the first foaming nozzle, the cross-sectional shape of the mixed foam group can be freely changed to a perfect circular shape or to other shapes such as horizontally elongated. There are conveniences that can be done.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a nozzle portion of a trigger-type sprayer equipped with a foaming nozzle according to the present invention.

[Figure 2] Figure 1 shows

Claims (7)

[Claims] 1. A foaming nozzle 8 is attached to the front end of the spin-type spray nozzle 1 of the sprayer on the same axis as the spray nozzle, and the foaming nozzle 8 is formed into an elliptical cylinder, and the spray hole 4 is formed by the operation of the sprayer. The high-density ring-shaped fog portion 32 on the outer periphery of the fog group 31 that spins out in a hollow conical shape from the foaming nozzle collides with the inner surface of both peripheral walls 8a, 8a on the shorter diameter side of the foaming nozzle, and the foaming nozzle A foaming nozzle for attachment to a sprayer, characterized in that both long-diameter side circumferential walls 8b, 8b portions are formed so as to be able to pass close to the inner surfaces of the two circumferential wall portions without colliding almost entirely. 2. The foaming nozzle according to claim 1,
The baffle plate 1 is inserted from the middle of both short diameter side peripheral wall portions of the foaming nozzle.
3 and 13 protruding from each other at appropriate intervals in opposite directions. 3. The foaming nozzle according to claim 1,
A foaming nozzle for attachment to a sprayer, characterized in that a partition plate 14 is attached between the intermediate portions of both shorter-diameter side circumferential wall portions of the foaming nozzle to divide the nozzle hole into two. 4. The foaming nozzle according to claim 1,
Almost the entire high-density ring-shaped fog portion 32 collides with the front end surface of both short-diameter side circumferential wall portions of the foaming nozzle at the middle portion in the long-diameter direction of both short-diameter side circumferential wall portions, and also near both ends in the long-diameter direction. Arc-shaped recess 15 that reduces the collision area according to the drop
A foaming nozzle for attaching to a sprayer, characterized by having a hole. 5. The foaming nozzle according to claim 1,
A foaming nozzle for attachment to a sprayer, characterized in that arcuate protrusions 16 are attached to the front ends of both circumferential walls on the shorter diameter side of the foaming nozzle. 6. In the foaming nozzle according to claim 1 and claim 3, the high-density ring-shaped fog portion or the foam generated when the fog portion collides with the inner wall surface of the foaming nozzle is directed approximately toward the front of the foaming nozzle. A foaming nozzle for attachment to a sprayer, characterized in that a plurality of grooves 17 for evenly distributing the foaming nozzle are formed on the inner surface of both circumferential walls on the short diameter side of the foaming nozzle. 7. In a foaming nozzle attached to the front end of a spin-type spray nozzle of a sprayer, the foaming nozzle is connected to a first foaming nozzle 18 having an elliptical cylinder, and a foam spout is connected in front of the first foaming nozzle. The second piece with a perfect circular cross section was attached to the
The second foaming nozzle is directly or indirectly pivotally connected to the first foaming nozzle 18, and the second foaming nozzle is formed with a foaming nozzle 19, and the second foaming nozzle is directly or indirectly pivotally connected to the first foaming nozzle 18. A foaming nozzle for attachment to a sprayer, characterized in that a nozzle 19 is formed to be detachable.