SPRAY NOZZLE AND AEROSOL PRODUCT

• US 20120234947A1
• Filed: 11/25/2010
• Published: 09/20/2012
• Est. Priority Date: 11/25/2009
• Status: Active Grant

• Current Assignee: Daizo Corporation
• Original Assignee: Daizo Corporation
• Inventors: Takahashi, Tomoyuki
• Granted Patent: US 9,511,381 B2
• Time in Patent Office: Days
• US Class Current: 239/601
• CPC Class Codes: B05B 1/02 designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shapeB05B1/26, B05B1/28, B05B1/34 take precedence
• CPC Class Codes: B05B 1/04 in flat form, e.g. fan-like, sheet-like
• CPC Class Codes: B05B 1/042 Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet B05B1/044, B05B1/046 take precedence
• CPC Class Codes: B05B 1/048 having a flow conduit with, immediately behind the outlet orifice, an elongated cross section, e.g. of oval or elliptic form, of which the major axis is perpendicular to the plane of the jet
• CPC Class Codes: B05B 1/06 in annular, tubular or hollow conical form
• CPC Class Codes: B05B 1/14 with multiple outlet openings B05B1/02, B05B1/26 take precedence; with strainers in or outside the outlet opening
• CPC Class Codes: B05B 1/262 with fixed deflectors
• CPC Class Codes: B05B 1/3405 to produce swirl
• CPC Class Codes: B65D 83/205 Actuator caps, or peripheral actuator skirts, attachable to the aerosol container
• CPC Class Codes: B65D 83/206 comprising a cantilevered actuator element, e.g. a lever pivoting about a living hinge
• CPC Class Codes: B65D 83/28 Nozzles, nozzle fittings or accessories specially adapted therefor

Abstract

[Problem to be solved] To provide a spray nozzle and an aerosol product in which the density difference between the center and the periphery is small. And to provide a spray nozzle and an aerosol product which give a spray pattern in which the spray density of peripheral portion does not decrease so much.

[Solution] A nozzle 10 for an aerosol product, in which the shape along the spray direction of the spray pattern F becomes a semi parabolic shape. The nozzle 10 in which the spray pattern is planar or plate-like surrounded by a semi parabola-like shape and a center line C, and in which the planar spray thereof becomes a shape such that a plurality of sheets is arranged at an equal interval in a circumferential direction around the center C of the nozzle.

The cross section of the spray pattern F can be formed into various shapes of an I type, a Y type, an X type, a V type, an S type etc according to the shape of slit passage of the front face of the nozzle 10. An aerosol product E equipped with a container body 31, a valve 32 provided in the upper end of the container body, and a nozzle 10 attached to the valve thereof.

Claims

1. A spray nozzle of which a contour portion of a spray pattern is pulled inside by spraying, a shape along a spray direction of the spray pattern being formed into an approximately semi parabolic shape.

2. A spray nozzle according to claim 1, wherein the spray pattern is planar or plate-like surrounded by the approximately semi parabolic shape and a nozzle hole center line.

3. A spray nozzle according to claim 1 or 2, which is equipped with the spray pattern composed of more than two line segments expanding outwardly from a nozzle hole center line when viewed from a front.

4. A spray nozzle according to claim 3, wherein the line segments are arranged in rotation symmetry centered at a nozzle hole center.

5. A spray nozzle according to claim 3 or 4, wherein the line segment is an approximately circular arc shape.

6. A spray nozzle according to claim 3, wherein the line segments are straight lines or curved lines arranged in a V-character shape.

7. A spray nozzle according to claim 4, wherein the line segments are straight lines or curved lines arranged in a Y-character shape.

8. A spray nozzle according to claim 1, 2, or 3, wherein a nozzle center is decentered from the center of the nozzle, and the line segments of the spray pattern extend toward the approximately opposite side of the nozzle from the nozzle hole center.

9. A spray nozzle according to claim 1, 2, or 3, wherein two or more of nozzle holes are equipped, and the spray pattern is composed of line segments of straight lines or curved lines passing through the front end opening of each nozzle hole.

10. A spray nozzle according to claim 1, 2, or 3 having, inside thereof, a passage to make a content pass through, a convergent taper portion or a gradient portion provided in a front end of the passage, and a small diameter nozzle hole passage extending from a front end of the taper portion or the gradient portion, wherein a slit passage which connects a nozzle hole which is the opening end of the nozzle hole passage and an outer space is provided.

12. A spray nozzle according to claim 10, or 11, wherein an opening which is connected with outside is formed outwardly in a radial direction from the vicinity of the front end of the nozzle hole.

13. A spray nozzle according to claim 1, 2 or 3, having, inside thereof, a passage to make a content pass through, a convergent taper portion or a gradient portion provided in the front end of the passage, wherein a slit passage which connects a nozzle hole in which a part of the taper portion or the gradient portion is made to open, and an outer space is provided.

16. A spray nozzle according to claim 1, 2 or 3, wherein the spray pattern is of parallel two planes when immediately after spraying, and then both sides are integrated into one plane by coming close.

17. A spray nozzle according to claim 1, 2 or 3, having an inner nozzle equipped with a passage to make a content pass through and a convergent taper portion provided in the front end of the passage, and an outer nozzle covered on the inner nozzle, being equipped with a slit passage connecting inside and outside thereof, wherein a spray passage connecting the taper portion and the slit passage is formed between the inner nozzle and the outer nozzle.

19. A spray nozzle according to claim 17, or 18, wherein the inner nozzle is equipped with a squeezing passage extending from the front end of the taper portion, wherein a spray passage which connects the squeezing passage and the slit passage is formed between the inner nozzle and the outer nozzle.

20. A spray nozzle according to claim 17, 18, or 19, wherein the outer nozzle is provided so as to be freely detachable and attachable in the outer periphery of the inner nozzle.

21. A spray nozzle according to claim 1, 2 or 3, having a nozzle body equipped with a passage to make a content pass through, a convergent taper portion provided in the front end of the passage, a squeezing passage extending from the front end of the taper portion, an empty space connected with the squeezing passage, and a slit passage connecting the empty space and outside, and an outer nozzle housed in the empty space, wherein a spray passage which connects the squeezing passage and the slit passage is formed between the outer nozzle and the inner surface of the empty space.

23. A spray nozzle according to claim 21, or 22, wherein the outer nozzle is provided so as to be freely detachable and attachable to the nozzle body.

24. An aerosol product equipped with a container body, a valve provided on the upper end of the container body, and a spray nozzle according to any of claims 1-23 attached to the valve.

25. An aerosol product according to claim 24, wherein the valve is a constant amount spray valve.

11. A spray nozzle having, inside thereof, a passage to make a content pass through, a convergent taper portion or a gradient portion provided in the front end of the passage, and a small diameter nozzle hole passage extending from a front end of the taper portion or the gradient portion, wherein a slit passage which connects a nozzle hole which is the opening end of the nozzle hole passage and an outer space is provided.

15. A spray nozzle according to claim 11, 12, 13, or 14, wherein a part of the front end of the nozzle hole is plugged.

14. A spray nozzle having, inside thereof, a passage to make a content pass through, a convergent taper portion or a gradient portion provided in the front end of the passage, wherein a slit passage which connects a nozzle hole in which a part of the taper portion or the gradient portion is made to open, and an outer space is provided.

18. A spray nozzle having an inner nozzle equipped with a passage to make a content pass through and a convergent taper portion provided in the front end of the passage, and an outer nozzle covered on the inner nozzle, being equipped with a slit passage connecting inside and outside thereof, wherein a spray passage connecting the taper portion and the slit passage is formed between the inner nozzle and the outer nozzle.

22. A spray nozzle having a nozzle body equipped with a passage to make a content pass through, a convergent taper portion provided in the front end of the passage, a squeezing passage extending from the front end of the taper portion, an empty space connected with the squeezing passage, and a slit passage connecting the empty space and outside, and an outer nozzle housed in the empty space, wherein a spray passage which connects the squeezing passage and the slit passage is formed between the outer nozzle and the inner surface of the empty space.