JP2001158484A - Aerosol sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make one-hand spraying operation easy for an aerosol sprayer and to prevent a trigger of the sprayer from being operated by triggering during the course of distribution while making the evidence of tampering discernible. SOLUTION: An opening 13 extending toward the front and rear is formed at the center in the breadthwise direction of a top plate of a covering peripheral wall 11 fitted at its lower part to an annular protuberant stripe 3, a trigger 25 is hung down from an ejection tube 23, a tamperproof plate 28 is provided, being erected through a breakable thin piece 27 from the upside at the front of a top plate 22 of a trigger-equipped spraying member, and the right and left parts of the tamperproof plate are mounted on the upside of the right and left parts of the opening 13 at the covering member.

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 fact that the trigger is used can be visually recognized by providing an unauthorized use prevention plate.

[0005]

As a first means, an annular ridge 3 is provided around the upper end of the body 2 and a central portion of the top wall 4 is pierced to urge the ejection stem 5 upward. An aerosol can 1 standing up in a state, a cover member 11 having an opening 13 in the front-rear direction formed in a middle portion in the left-right direction of a top plate of a cover peripheral wall 11 having a lower portion fitted to the annular ridge 3, and the ejection stem 5, a stem fitting tube 21 fitted to the upper portion is vertically provided from the center of the top plate 22, and an injection tube 23 having a front half of the top plate 22 as an upper wall from the front surface of the stem fitting tube 21 is protruded forward. A trigger 25 is suspended from the lower surface of the front part of the injection cylinder, and
2 having a spray member 20 with a trigger having a rear portion engaged with a rear portion of the peripheral wall 11 of the cover, the spray member top plate 22 having the trigger being capable of entering and exiting into the cover member opening 13, An unauthorized use prevention plate 28 is protruded from a front upper surface via a breakable thin piece 27,
The left and right portions of the prevention plate were placed on the upper surfaces of the left and right portions of the cover member opening, and the cover member 10 and the spray member 20 with a trigger were formed of a synthetic resin material.

As a second means, there is provided the first means, and the engaging projection 15 is provided on one of the front surface of the rear wall of the cover member peripheral wall 11 or the rear surface of the vertical plate portion 26 of the spraying member top plate with the trigger, and the other is provided on the other. An engaging recess is formed, the engaging protrusion is engaged with the engaging recess, and a regulating rod 16 is provided between the left and right side surfaces of the rear portion of the cover member peripheral wall 11 so that a trigger is provided when the trigger is pulled rearward. The front surface of the vertical plate portion 26 of the spray member is the regulating rod 1
6 was provided so as to be engageable.

As a third means, there is provided a first means, and a pair of fitting projections 46 are arranged in the front-rear direction on the left and right upper surfaces of the cover member opening, and between these projections. The right and left portions of the unauthorized use prevention plate 28 were fitted together.

[0008]

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. Reference numeral 1 denotes an aerosol can, which has an annular ridge 3 provided around the upper end of a body 2 and an outer peripheral portion of a top wall 4 which closes the upper end surface of the body, is fastened around the annular ridge 3 and a central portion of the top wall. And the jetting stem 5 is erected in an upwardly biased state.

Reference numeral 10 denotes a cover member, the lower end of which is an annular ridge 3.
Top plate 1 for closing the upper surface of cover peripheral wall 11 fitted to the outer surface
An opening 13 is formed from the rear end of the peripheral wall 2 to the lower end of the front part of the peripheral wall via the front end, and the rear end of the peripheral wall 11 extends rearward from the annular ridge 3 so as to extend the rear wall part. The locking rod 14 is installed between the left and right side surfaces of the lower end.

Reference numeral 20 denotes a spraying member with a trigger. A stem fitting tube 21 fitted to the upper outer surface of the ejection stem 5 is vertically suspended from the center of a top plate 22 located in the opening 13, and the stem fitting tube is provided. 21, an injection cylinder 23 having a top plate front half portion as an upper wall projects forward, and a support plate 24 projects forward from a lower portion of the front end of the injection cylinder.
Is installed vertically.

The lower end of the vertical plate portion 26 is locked to the rear surface of the locking rod 14 using the vertical plate portion 26 suspended from the rear half of the top plate 22 and the rear end of the top plate as a plate spring. Further, an unauthorized use prevention plate 28 is protruded from a front upper surface of the top plate 22 via a rupturable thin piece 27, and both right and left portions of the prevention plate are placed on the left and right upper surfaces of the cover member opening.

The engaging projection 15 is formed on the upper inner surface of the rear wall of the cover peripheral wall 11 and the engaging recess is formed on the upper rear surface of the vertical plate 26, respectively. The projection is engaged with the engagement recess. This is for restricting the movement of the trigger 25 in the left-right direction. Therefore, on the contrary, the engaging projection is provided on the vertical plate portion 26 and the engaging recess is provided on the cover peripheral wall 11.
The same operation and effect can be obtained by forming the same. A regulating rod 16 is provided between the left and right sides of the upper rear wall of the cover peripheral wall 11 so that the front surface of the vertical plate 26 of the spray member with the trigger can be engaged with the regulating rod 16 when the trigger is pulled rearward. .
Reference numeral 30 denotes a nozzle fitted to the inner surface of the front end of the injection cylinder 25. In addition, the cover member 10 and the spray member 20 with a trigger are provided.
Are formed of a synthetic resin material.

Next, the operation of this embodiment will be described.
As shown in FIGS. 1 to 3, when the trigger 25 is pulled backward before the unauthorized use prevention plate 28 is removed, the top plate 22 is elastically deformed downward, and the thin piece 27 is broken.
On the other hand, as shown in FIG. 4, the stem fitting tube 21 descends due to the elastic deformation of the top plate 22 to push down the ejection stem 5, so that a mist or the like is ejected from the nozzle and the vertical plate portion 26.
Is inclined forward and abuts on the regulating rod 16, so that the trigger cannot be pulled further. When the trigger is released after the ejection, the trigger returns to the original position by the urging force of the ejection stem 5 and the elastic force of the top plate 22 and the vertical plate portion 26.

5 to 10 show another embodiment. In the present embodiment, the trigger 25 is suspended from an intermediate portion of the front half of the injection cylinder, and a pair of arc-shaped engaging projections are formed on outer surfaces of lower end portions of a pair of hanging plates 40 hanging from right and left portions of the rear end of the top plate 22. 41
Are formed, and a semicircular arc-shaped engaging concave portion 42 that curves upward is formed on both the left and right portions of the rear portion of the cover peripheral wall 11, and the engaging protrusion 41 is rotatably engaged with the concave portion. An engaging plate 43 projects from the inner surface of the rear wall of the cover peripheral wall 11, and the rear end of the top plate 22 is engaged with the upper surface of the engaging plate.

The inner diameter of the lower end of the stem fitting cylinder 21 is formed in the large-diameter portion 44 via the downward step portion, and the lower portion of the large-diameter portion is formed in the lower large-diameter taper portion 45 for jetting. The upper end of the stem 5 for the large diameter portion 44 above the tapered portion
Fit to the inner surface of the part. At this time, the stem fitting cylinder 21 is inclined slightly backward with respect to the ejection stem 5. Further, a pair of fitting projections 46 are arranged on the upper surface of the left and right portions of the cover member opening 13 in the front-rear direction, and the left and right portions of the unauthorized use prevention plate 28 are fitted between these projections. The other configuration is the same as that of the first embodiment, and the description is omitted.

Next, the operation of the present embodiment will be described with respect to differences from the first embodiment. As shown in FIG. 5, the stem fitting cylinder 21 is inclined rearward with respect to the ejection stem 5, the top plate 22 is elastically deformable, and the unauthorized use prevention plate 28 is provided between the fitting projections 46. As the trigger 25 is pulled, a forward displacement force also acts on the top plate 22. Therefore, not only a downward pulling force but also a forward pulling force acts on the thin hinge 27. Therefore, the thin hinge can be reliably and quickly broken.

When the trigger 24 is pulled, the stem fitting tube 21 is also lowered at the same time. However, the ejection stem 5 may be pushed down until the downward step of the large diameter portion 44 contacts the upper end surface of the ejection stem 5. Therefore, no mist or the like is ejected from the nozzle until the thin piece 27 is broken. When the trigger 25 is released after the ejection, the trigger swings upward and returns to the original position.
Since the rear end is engaged with the upper surface of the engagement plate 43, the rear end does not rise beyond the original position.

[0018]

The mist can be ejected from the injection cylinder by pulling the trigger backward, so that the spraying operation with one hand can be easily performed as compared with the conventional pressing operation. Further, since the unauthorized use prevention plate is provided, it is possible to prevent the trigger from being pulled in the distribution channel, and it is possible to visually recognize the fact of use by the trigger being drawn.

According to the second aspect of the invention, when the trigger is pulled rearward, the front surface of the vertical plate portion of the spraying member with the trigger is provided so as to be engageable with the regulating rod. This prevents excessive trigger pulling.

According to the third aspect of the present invention, since the right and left portions of the unauthorized use preventing plate are fitted between the fitting projections, the pulling force is applied to the unauthorized use preventing plate when the trigger is pulled. Therefore, the thin hinge can be broken quickly and reliably.

[Brief description of the drawings]

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

FIG. 2 is a side view of FIG. 1;

FIG. 3 is also a perspective view.

FIG. 4 is a sectional view showing a state after the unauthorized use prevention plate is separated.

FIG. 5 is a cross-sectional view of a principal part showing a second embodiment of the aerosol sprayer according to the present invention.

FIG. 6 is a side view of FIG. 1;

FIG. 7 is a sectional view showing a state after the unauthorized use preventing plate is separated.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a view of the spraying member with the trigger viewed from the front, both left and right sides, and both the upper and lower sides.

FIG. 10 Similarly, the base member is viewed from the front, upper and lower surfaces, AA,
The figure seen from BB.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 aerosol can 2 body 3 annular ridge 4 top wall 5 ejection stem 10 cover member 11 cover peripheral wall 13 opening 15 engagement projection 20 trigger spray member 21 stem fitting cylinder 22 top plate 23 injection cylinder 25 trigger 26 vertical Plate 27 Thin piece 28 Unauthorized use prevention plate 46 Fitting projection

Claims (3)

[Claims] 1. An aerosol can 1 having an annular ridge 3 provided at an upper end portion of a body 2 and a central portion of a top wall 4 being penetrated to raise an ejection stem 5 in an upwardly biased state. A cover member 11 having an opening 13 in the front-rear direction formed in a middle portion in the left-right direction of a top plate of a cover peripheral wall 11 having a lower portion fitted to the annular ridge 3, and a stem fitting fitted to an upper portion of the ejection stem 5. Cylinder 21
From the center of the top plate 22, and from the front surface of the stem fitting tube 21, an injection cylinder 23 having the front half of the top plate 22 as an upper wall is protruded forward, and a trigger 25 is suspended from the lower surface of the front of the injection cylinder. A spraying member with a trigger 20 in which a rear portion of the top plate 22 is engaged with a rear portion of the cover peripheral wall 11. The spraying member with the triggering top plate 22 is capable of entering and leaving the cover member opening 13. An unauthorized use prevention plate 28 is protruded from a front upper surface of the top plate 22 through a breakable thin piece 27, and both right and left portions of the prevention plate are placed on the upper surfaces of both right and left portions of the cover member opening. An aerosol sprayer characterized in that the cover member (10) and the spray member (20) with a trigger are formed from a synthetic resin material. 2. An engaging projection 15 is formed on one of a front surface of a rear wall of the cover member peripheral wall 11 or a rear surface of a vertical plate portion 26 of a spray member top plate with a trigger, and an engaging recess is formed on the other. And a regulating rod 16 is provided between the left and right side surfaces of the rear portion of the cover member peripheral wall 11 so that the front surface of the vertical plate portion 26 of the spraying member with the trigger is restricted when the trigger is pulled rearward. The aerosol type sprayer according to claim 1, wherein the sprayer is provided so as to be engaged with the aerosol sprayer. 3. The cover member opening is provided on the left and right upper surfaces thereof.
The aerosol sprayer according to claim 1, wherein a pair of fitting projections (46) are arranged in the front-rear direction, and both right and left portions of the unauthorized use prevention plate (28) are fitted between the projections.