JP2001158485A - Aerosol sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make one-handed operation of spraying easy for an aerosol sprayer and to prevent a tampering with triggering in a distribution route while making the evidence of use recognizable. SOLUTION: An ejection tube 22 is provided, projecting toward the front from the upper end of a fitting tube 21 with its lower part fitted onto an ejection stem 5, a trigger 25 is provided, dangling from the underside of the ejection tube, an opening 36 is bored at the top of a cover member 31, a plurality of tamper-evident elastic pieces 24b are provided, spreading radially downward from the upper end of a stem 24 standing at the upside of the ejection tube 22 through a breakable breaking piece 24a toward the upper part of the opening, and the lower end of each of the elastic pieces are made to engage with the upside of the opening 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerosol sprayer that performs spraying by a trigger operation.

[0002]

2. Description of the Related Art In an aerosol sprayer, a jetting stem is erected in an upwardly urged state by penetrating a central portion of a top wall of a body.
In general, a depression head having a nozzle hole is fitted on the upper part of the ejection stem. When the depression head is pushed down, a mist or the like is ejected from the nozzle hole.

[0003]

In the above-described aerosol sprayer, when the spray operation is performed by holding the can with one hand, the press-down head is pressed down with one finger, usually a forefinger. The pushing operation is not so easy as compared with the pulling operation.Moreover, such a disadvantageous operation requires pushing down the upwardly biased pushing head several times continuously for a certain period of time, so that the spraying operation is further increased. It was difficult.

According to the present invention, by providing a trigger,
In addition to facilitating the spraying operation of the aerosol sprayer with one hand, the provision of the unauthorized use preventing means makes it possible to visually recognize the fact of use by pulling the trigger.

[0005]

As a first means, an annular ridge 3 is provided around the upper end of the body 2 and the top wall 4 is pierced so that the ejection stem 5 is urged upward. An aerosol can 1 that stands up, a base member 10 that stands up a protective tube 13 via an inward flange 12 from an upper end of a peripheral wall 11 fitted to the annular ridge 3, and a lower part that fits into the stem 5 for ejection. The injection cylinder 22 projects forward from the upper end of the stem fitting cylinder 21, and the trigger 25 is suspended from the lower surface of the injection cylinder, and the lower part of the stem fitting cylinder is connected to the protective cylinder 1 via a flexible connecting plate 23.
3 and the lower part of the left and right side plates 32 vertically extending from the left and right parts of the top plate 31 placed on the upper surface of the injection cylinder 22 are fitted to the left and right parts of the protection cylinder 13. A cover member 30 connected to a rear portion of the base member peripheral wall 11 via a thin hinge 34 and connected to a rear portion of the base member peripheral plate 11 through a thin hinge 34, the opening portion being formed in the cover member top plate 31; At the same time, a plurality of elastic pieces 24b for preventing unauthorized use are expanded downward and obliquely from the upper end of the rod portion 24 which rises above the opening portion through a broken piece 24a which can be broken from the upper surface of the injection cylinder 22. Then, the lower ends of these elastic pieces were engaged with the upper surface of the opening 36, and the base member 10, the spray member 20 with trigger, and the cover member 30 were integrally formed of a synthetic resin material.

As a second means, there is provided a first means. In addition, openings 14 are formed in both right and left portions of the inward flange 12 of the base member 10, and engagement is provided from the lower ends of the left and right side plates 32 of the cover member. The dovetail 35 was hung down to engage both engagement claws with the lower surfaces of both openings 14.

As a third means, there is provided an aerosol can 1 having an annular ridge 3 provided at the upper end of a body 2 and a top wall 4 penetrating therethrough so that a jetting stem 5 is erected in an upwardly biased state. A base member 10 erecting a protective cylinder 13 from an upper end of a peripheral wall 11 fitted to the annular ridge 3 via an inward flange 12, and a stem fitting cylinder 21 having a lower part fitted to the ejection stem 5. With a trigger that projects an injection cylinder 22 forward from the upper end and a trigger 25 that extends vertically from the lower surface of the injection cylinder, and connects the lower part of the stem fitting cylinder 21 to the protection cylinder 13 via a flexible connection plate 23. The spraying member 20 and the left and right side plates 32 vertically suspended from both left and right portions of the top plate 31 placed on the upper surface of the injection cylinder 22
The lower portion is fitted to both the left and right portions of the protective cylinder 13 and a rear plate 33 which is continuous with the rear portions of the left and right side plates and is vertically suspended from the rear portion of the top plate is connected to the rear portion of the base member peripheral wall 11 via a thin hinge 34. A cover 40 is provided between the front part of the base member protection cylinder 13 and the rear part below the trigger 25.
And the spacer and the protection cylinder, and the spacer and the trigger, are connected by the connecting piece 41 for breaking, respectively. The base member 10, the spray member 20 with the trigger, and the cover member 30 are integrally formed of a synthetic resin material. did.

As a fourth means, there is provided a third means, and the lower portions of the left and right side plates 32 of the cover member 30 are fitted to both the left and right portions of the base member protection cylinder 13 via the uneven fitting means. Was.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an aerosol sprayer according to the present invention will be described below with reference to the drawings. FIG.
FIG. 5 to FIG. 5 show a first embodiment. Reference numeral 1 denotes an aerosol can having an annular ridge 3 provided around an upper end portion of a body portion 2 and an outer peripheral portion of a top wall 4 for closing an upper end surface of the body portion wound around an outer surface of the annular ridge portion 3; Erection stem 5
In the upwardly biased state.

Reference numeral 10 denotes a base member, and a rectangular protection cylinder 13 is erected from an upper end of a peripheral wall 11 fitted to the outer surface of the annular ridge 3 via an inward flange 12.

Reference numeral 20 denotes a spraying member with a trigger, which is a stem fitting cylinder 2 having a lower end fitted to the upper outer surface of the ejection stem 5.
1. An injection cylinder 22 projects forward from the upper end, and a trigger 25 is suspended from the lower surface of the front of the injection cylinder. Further, a lower rear portion of the stem fitting tube 21 is connected to a rear upper end of the protection tube 13 via a leaf spring 23. Reference numeral 26 denotes a nozzle fitted to the inner surface of the front end of the injection cylinder 22.

Numeral 30 denotes a cover member, which is a left and right side plate 32 which is suspended from both left and right portions of a top plate 31 placed on the upper surface of the injection cylinder 22.
The lower end is fitted to the left and right sides of the protective cylinder 13. Also,
A rear plate 33, which is continuous with the rear portions of the left and right side plates 32 and is suspended from the rear portion of the top plate 31, is connected to the rear upper end of the peripheral wall 11 via a thin hinge. Further, as described in claim 2, openings 14 are formed in both right and left portions of the inward flange 12 so as to be adjacent to the protection cylinder 13, and the engaging claws 35 are hung down from the lower ends of the left and right side plates 32. Then, the both engaging claws are engaged with the lower surface on the outer edge side in the left-right direction of both openings. The upper portion of the rear plate 33 is formed in an arc-shaped portion 33a that curves backward.

Further, an opening 36 is formed in the middle of the top plate 31, and the rod 24 is erected above the opening 36 from a top surface of the middle of the injection cylinder 22 through a breakable piece 24a. A pair of elastic pieces 24b are expanded obliquely downward and outward in the front-rear direction from the upper ends of the parts, and the lower ends of the elastic pieces are engaged with the upper surface of the opening. The number of elastic pieces is not limited to two, and may be more. In this case, the elastic pieces are expanded in the front-rear and left-right directions.
The base member 10, the spray member with trigger 20, and the cover member 30 are integrally formed of a synthetic resin material.

Next, the operation of the present embodiment will be described.
FIGS. 3 and 4 show a state before the cover member 30 is assembled. In order to assemble the cover member 30, the cover member 30 is lifted upward, and the left and right side plates 32 are fitted to the left and right side surfaces of the protection tube 13. Then, the opening 36 is pressed against the elastic piece 24b. As a result, the elastic piece is elastically deformed inward, and the opening 36 is formed.
Pass through the elastic piece 24b. Then, the elastic piece expands outward and engages with the upper surface of the opening 36. At the same time, the engaging claw 3
5 also engages with the lower surface of the opening 14.

When a mist or the like is ejected from the injection cylinder 22, only a slight force is applied to the trigger 25.
The trigger cannot be pulled backward because 4b is engaged with the upper surface of the opening 36. In order to cause ejection, the trigger may be pulled strongly, and then, as shown in FIG.
And the injection cylinder 22 is also separated downward from the top plate 31 to break the broken pieces 34. After the ejection, when the trigger 25 is released, the stem fitting cylinder 21 is raised by the upward urging force of the ejection stem 21 and the elastic force of the leaf spring 23, and the injection cylinder 22 is returned to the original position.

FIGS. 6 to 10 show a second embodiment. In the first embodiment, the fragment 2
The rod 24 is erected through the rod 4a, the elastic piece 24b is expanded from the upper end of the rod, and the lower end of the elastic piece is engaged with the upper surface of the opening 36. In this embodiment, instead of providing these, A rectangular plate-shaped spacer 40 is interposed between the front part of the protection cylinder 13 and the rear part of the lower part of the trigger 25, and the spacer and the protection cylinder are connected to each other by the connecting piece 41 for breakage. The connecting piece for breaking may be additionally provided between the lower end of the front part of the spacer and the front part of the peripheral wall 11.

In the first embodiment, the engaging claw 35 is engaged with the opening portion 14. In the present embodiment, instead of this, the right and left side plates 32 of the cover member are replaced.
The first fitting claw 42 is formed on the inner surface of the lower end portion of the, and the second fitting claw 43 is formed on the upper end portion on both the left and right sides of the protection cylinder 13.
The first fitting claw is fitted to the second fitting claw. The other configuration is the same as that of the first embodiment, and the description is omitted.

In the present embodiment, in order to eject the contents in the body, the spacers may be removed by pulling the spacer 40 in either the left or right direction to break the breaking connection piece 41.

[0019]

According to the first and third aspects of the present invention, it is possible to eject a mist or the like from the injection cylinder by pulling the trigger backward, and therefore, it is possible to use one hand as compared with the conventional pressing operation. The spraying operation becomes easy. Further, in the first aspect of the present invention, the elastic piece is engaged with the opening, and in the third aspect of the present invention, the spacer is provided. Facts become visible.

In the second aspect of the present invention, the engaging claw is engaged with the opening, and in the fourth aspect of the present invention, the uneven fitting means is provided, so that the cover member is more securely attached to the base member. become.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a first embodiment of an aerosol sprayer according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG. 1;

FIG. 3 is a sectional view showing a state before the cover member is assembled.

FIG. 4 is a perspective view of FIG. 3;

FIG. 5 is a sectional view showing a state at the time of ejection.

FIG. 6 is a cross-sectional view of a main part, similarly showing a second embodiment.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

FIG. 8 is a sectional view showing a state before the cover member is assembled.

FIG. 9 is a perspective view of FIG. 8;

FIG. 10 is a sectional view showing a state at the time of ejection.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aerosol can 2 Body 3 Annular ridge 4 Top wall 5 Injection stem 10 Base member 11 Peripheral wall 12 Inward flange 13 Protective cylinder 14 Opening 20 Spray member with trigger 22 Injection cylinder 23 Flexible connection plate 25 Trigger 30 Cover member 31 Top plate 32 Side plate 33 Rear plate 34 Thin hinge 35 Engagement claw 36 Opening 24a Fragmented piece 24 Bar portion 24b Elastic piece 40 Spacer 41 Breaking connecting piece

Claims (4)

[Claims] 1. An aerosol can (1) in which an annular ridge (3) is provided around the upper end of a body (2) and a top wall (4) is pierced to raise an ejection stem (5) in an upwardly biased state. A base member 10 that erects a protective cylinder 13 from an upper end of a peripheral wall 11 fitted to the ridge 3 via an inward flange 12.
And a stem fitting tube 2 having a lower portion fitted to the ejection stem 5.
1 With a trigger that projects an injection cylinder 22 forward from the upper end and a trigger 25 that extends vertically from the lower surface of the injection cylinder and connects the lower part of the stem fitting cylinder to the protection cylinder 13 via a flexible connection plate 23. The lower part of the left and right side plates 32 vertically hanging from the left and right parts of the top plate 31 placed on the upper surface of the injection cylinder 22 is fitted to the left and right parts of the protection cylinder 13 and the rear part of the left and right side plates. A cover member 30 which is connected to a rear portion of the base member peripheral wall 11 via a thin hinge 34 and a rear plate 33 which is continuously erected from a rear portion of the top plate, and an opening 36 is formed in the cover member top plate 31; A plurality of elastic pieces 24b for preventing unauthorized use are expanded obliquely outward downward from the upper end of the rod portion 24 rising upward from the upper surface of the opening portion via a broken piece 24a that can be broken from the upper surface of the injection cylinder 22. Into the opening 36 Allowed, aerosol sprayer, characterized in that integrally molded of a synthetic resin material and the base member 10 and the trigger with the spray member 20 and the cover member 30. 2. An opening 14 is formed in each of the left and right portions of the inward flange 12 of the base member 10, and an engaging claw 35 is hung from the lower ends of the left and right side plates 32 of the cover member. 2. The aerosol sprayer according to claim 1, wherein the first and second openings are engaged with the lower surfaces of the openings. 3. An aerosol can 1 having an annular ridge 3 provided around an upper end of a body 2 and having a top wall 4 penetrated to raise an ejection stem 5 in an upwardly biased state. A base member 10 that erects a protective cylinder 13 from an upper end of a peripheral wall 11 fitted to the ridge 3 via an inward flange 12.
And a stem fitting tube 2 having a lower portion fitted to the ejection stem 5.
1. An injection cylinder 22 projects forward from the upper end, and a trigger 25 extends vertically from the lower surface of the injection cylinder.
1 A spray member 20 with a trigger having a lower portion connected to the protective cylinder 13 via a flexible connecting plate 23, and a lower portion of left and right side plates 32 vertically suspended from both left and right portions of a top plate 31 placed on the upper surface of the injection tube 22. A cover member which is fitted to both left and right portions of the protective cylinder 13 and is connected to the rear portion of the base member peripheral wall 11 via a thin hinge 34 by connecting a rear plate 33 which is continuous with rear portions of the left and right side plates and is vertically suspended from a rear portion of the top plate. And a spacer 40 interposed between the front part of the base member protection cylinder 13 and the rear lower part of the trigger 25. The spacer and the protection cylinder, and the spacer and the trigger are each connected by a breakable connection piece 41. An aerosol sprayer wherein the base member 10, the spray member with trigger 20, and the cover member 30 are integrally formed of a synthetic resin material. 4. The aerosol according to claim 3, wherein the lower portions of the left and right side plates 32 of the cover member 30 are fitted to both the left and right portions of the base member protection cylinder 13 via uneven fitting means. Sprayer.