JP3691243B2 - Aerosol liquid ejection container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aerosol type liquid ejection container.
[0002]
[Prior art]
As an aerosol type liquid ejection container that is generally used, an annular protrusion having a larger outer diameter than the upper end of the peripheral wall is raised from the upper end of the peripheral wall, and the lower outer surface of the annular protrusion and the outer surface of the upper end of the peripheral wall An aerosol can body having a concave groove in between and a central portion of the top wall penetrating the liquid ejection stem upwardly biased, and a press-down head with a nozzle fitted to the upper end of the stem; An engagement ridge fitted into the groove is attached to the inner surface of the lower end of the peripheral wall fitted to the outer surface of the annular protrusion, and an inward flange attached to the upper end of the peripheral wall is placed on the upper surface of the annular protrusion. In addition, an annular member that erects the cap fitting cylinder from the inner periphery of the inward flange and the above-mentioned pressing head are loosely inserted into the outer surface of the cap fitting cylinder so that the lower end of the peripheral wall is detachably fitted. It is known that it is formed with a cap. The aerosol can is made of metal, and the annular member and the cap are made of a synthetic resin material.
[0003]
[Problems to be solved by the invention]
The annular member of the aerosol-type liquid ejection container is convenient for attaching and detaching the cap, and since the annular member is securely fitted to the upper part of the aerosol can, the cap does not become dull with respect to the aerosol can and is stable. The feeling is great.
[0004]
By the way, the reuse of waste has been emphasized due to the recent increase in waste, and the separation and collection of waste has been regarded as important for the reuse. It is desirable that the annular member and the cap made of synthetic resin can be easily separated.
[0005]
However, since the annular member is for stably attaching the cap to the aerosol can, making it easy to remove the annular member from the aerosol can adversely affects the stable fitting of the cap. This is not preferable. In the present invention, in the state where the consumer uses the ejection container, the annular member is securely and stably attached to the aerosol can. However, when disposing, the annular member can be easily attached by a very simple operation. It is provided so that it can be removed from the aerosol can.
[0006]
[Means for Solving the Problems]
From the upper end of the peripheral wall 2, the annular protrusion 3 having a larger outer diameter than the upper end of the peripheral wall is wound together with the outer peripheral part of the top wall and raised, and the lower outer surface of the annular protrusion and the outer surface of the upper end of the peripheral wall The groove 4 is provided around the center and the center portion of the top wall is penetrated to stand the liquid ejection stem 6 in the upward biased state, and the pressing head 7 with the nozzle is fitted to the upper end of the stem. Metal aerosol can 1;
An engaging protrusion 13 that fits into the groove 4 is provided on the inner surface of the lower end of the peripheral wall 12 that is fitted to the outer surface of the annular protrusion 3, and an inward flange 14 that is attached to the upper end of the peripheral wall is provided with the annular protrusion 3. An elastic synthetic resin annular member 11 placed on the upper surface and standing up the cap fitting cylinder 15 from the inner periphery of the inward flange;
In the aerosol-type liquid ejection container comprising the synthetic resin cap 21 in which the lower end of the peripheral wall 12 is detachably fitted to the outer surface of the cap fitting cylinder 15 by loosely inserting the pressing head 7 into the inside,
A first tapered portion 31 having a lower inner diameter is formed on the lower inner surface of the cap fitting cylinder 15 and a plurality of dividing grooves 33 are formed in the annular member portion below the middle of the cap fitting cylinder 15 in the vertical direction. The end face is opened and vertically installed,
In addition, on the inner surface of the cap fitting cylinder 15, a push-down cylinder member 41 made of synthetic resin that hangs a second taper part 42 having the same shape as the first taper part 31 from the lower end of the cylinder part 43 is provided on the upper part of the cylinder part 43. And the second tapered portion 42 is fitted in contact with the inner wall surface of the first tapered portion,
Furthermore, a cylinder member lowering gap is provided between the lower end surface of the cylindrical member 41 and the top surface of the aerosol can top wall so that the cylindrical member 41 can be forcibly pressed down with respect to the annular member 11, and the lower portion of the cylindrical portion 43 is the first portion. When penetrating into the lower end of the tapered portion 31, the inner diameter of the lower end of the annular member peripheral wall 12 was expanded so that the diameter could be larger than the annular projection 3 of the aerosol can.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The drawings will be described below. First, a conventionally known part will be described. Reference numeral 1 denotes a metal aerosol can forming the container main body of the present invention. The upper part of the peripheral wall 2 is a tapered part having a small outer diameter, and the upper end part of the peripheral wall 2 is an upper end part of the peripheral wall. An annular protrusion 3 having an outer diameter larger than that of the annular protrusion is erected, and a groove 4 is provided between the lower outer surface of the annular protrusion and the outer surface of the upper end of the peripheral wall. Further, the top wall 5 has a central portion as an upwardly protruding portion, and the central portion is provided so as to erect the liquid ejection stem 6 in an upward biased state, and a push-down head 7 with a nozzle is provided at the upper end of the stem. When the stem 6 is pushed down through the head, the discharge valve at the lower end of the stem is opened, the liquid in the container is ejected from the nozzle through the stem, and when the push-down head is released, the upward biasing is performed. As a result, the stem is raised, and then the discharge valve is closed to stop the liquid ejection. The annular protrusion 3 is formed as a winding portion between the outer periphery of the top wall and the upper end portion of the peripheral wall.
[0008]
11 is an annular member made of synthetic resin having elasticity, and an engagement protrusion 13 is provided around the inner surface of the lower end of the peripheral wall 12 fitted to the outer surface of the annular protrusion 3 so as to be fitted into the groove 4. Further, an inward flange 14 attached to the upper end of the peripheral wall is placed on the upper surface of the annular protrusion 3, and the cap fitting cylinder 15 is erected from the inner peripheral portion of the inward flange.
[0009]
21 is a synthetic resin cap, in which the pressing head 7 described above is loosely inserted, and the lower end portion of the peripheral wall 22 is detachably fitted to the outer surface of the cap fitting cylinder 15. A ridge is provided on the inner surface of the lower end of the peripheral wall, and a ridge is also provided on the outer surface of the cap fitting cylinder to engage the two ridges to prevent the cap from being easily removed. However, they may be provided if necessary.
[0010]
In the present invention, the first tapered portion 31 having the lower small inner diameter is formed on the lower inner surface of the cap fitting cylinder 15 described above. The lower end inner surface of the first tapered portion may be formed on the standing wall 32 as shown. As clearly shown in FIG. 2, a plurality of split grooves 33 are provided vertically in the annular member portion below the intermediate portion in the vertical direction of the cap fitting cylinder 15.
[0011]
Furthermore, a synthetic resin push-down cylinder member 41 is provided in which a second taper part 42 having the same shape as the first taper part 31 is suspended from the lower end of the cylinder part 43, and the second taper part 42 is The cylindrical portion 43 was fitted to the inner surface of the cap fitting cylinder by contacting the inner wall surface of the taper portion and raising the upper portion of the cylindrical portion 43 upward from the cap fitting cylinder 15. As shown in the figure, the short cylindrical portion 44 may be suspended from the lower end of the second tapered portion 42, and a gap for lowering the cylindrical member is provided between the lower end and the aerosol can top wall 5 portion below the lower cylindrical portion 44. Keep it. It is desirable that an engagement protrusion that engages with each other to prevent the cylindrical member 41 from being pulled upward is provided on the outer surface of the cylinder portion 43 and the upper inner surface of the cap fitting cylinder 15.
[0012]
When discarding the liquid ejection container, first, after removing the cap 21 and the pressing head 7, the aerosol can 1 is inverted as shown in FIG. Lower. Then, as shown in FIG. 4, the lower portion of the cylindrical portion 41 is located at the lower end of the first tapered portion 31 due to the pressure sliding of the outer surface of the second tapered portion against the inner wall surface of the first tapered portion. When the penetration groove 33 is expanded and the above-mentioned split groove 33 is expanded, the lower end inner diameter of the first tapered portion 31 and therefore the lower end inner diameter of the peripheral wall 12 is increased, so that the concave groove of the aerosol can The engaging protrusion 13 at the lower end of the annular member peripheral wall 12 that has been fitted into the groove 4 is disengaged from the groove 4. Therefore, the cylindrical member 41 and the annular member 11 can be easily removed from the upper end of the aerosol can 1 from this state.
[0013]
【The invention's effect】
In the present invention, the peripheral wall 12 of the annular member 11 is fitted to the outer surface of the annular protrusion 3 of the aerosol can, and the engaging protrusion 13 on the inner surface of the lower end of the peripheral wall is connected to the lower part of the annular protrusion. The inner surface 14 is fitted into the groove 4 formed by the outer surface and the upper end of the peripheral wall, and the inward flange 14 at the upper end of the peripheral wall is placed on the upper surface of the annular projection 3. In an aerosol-type liquid ejection container having an annular member 11 upstanding 15, a first tapered portion 31 having a lower small inner diameter is formed in the lower part of the cap fitting cylinder 15 and the vertical direction of the cap fitting cylinder 15 A plurality of split grooves 33 are vertically formed in the annular member portion below the middle, with the lower end surface opened, and a second shape having the same shape as the first tapered portion 31 is formed on the inner surface of the cap fitting cylinder 15. The cylindrical member 41 that hangs the tapered part 42 from the lower end of the cylindrical part 43, and the upper part of the cylindrical part 43 above the cap fitting cylinder 15 Since the second tapered portion 42 is fitted in contact with the inner wall surface of the first tapered portion 31 and the cylindrical member 41 can be forcibly pushed down against the annular member 11, the cylindrical member lower end surface Since the cylinder member descending gap is provided between the top surface of the aerosol can and the top wall 5 of the aerosol can, the inner diameter of the annular member peripheral wall 12 can be increased by forcibly pushing down the cylindrical member. It is easy to remove the engaging protrusions 13, so that the annular member 11 and the cylindrical member 41 can be easily removed from the aerosol can, and can be separated and discarded for each material.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of a container of the present invention.
FIG. 2 is a perspective view of a container main member.
FIG. 3 is an explanatory view of a method for removing an annular member provided with a cylindrical member from an aerosol can.
FIG. 4 is a cross-sectional view showing a state in which the engagement protrusion on the inner surface of the lower end of the circumferential wall of the annular member is removed from the concave groove of the aerosol can.
[Explanation of symbols]
3 ... annular protrusion 4 ... concave groove
11 ... annular member 15 ... cap fitting tube
31 ... 1st taper part 33 ... Split groove
41 ... Cylinder member 42 ... Second tapered portion

Claims (1)

From the upper end of the peripheral wall 2, the annular protrusion 3 having a larger outer diameter than the upper end of the peripheral wall is wound together with the outer peripheral part of the top wall and raised, and the lower outer surface of the annular protrusion and the outer surface of the upper end of the peripheral wall The groove 4 is provided around the center and the center portion of the top wall is penetrated to stand the liquid ejection stem 6 in the upward biased state, and the pressing head 7 with the nozzle is fitted to the upper end of the stem. Metal aerosol can 1;
An engaging protrusion 13 that fits into the groove 4 is provided on the inner surface of the lower end of the peripheral wall 12 that is fitted to the outer surface of the annular protrusion 3, and an inward flange 14 that is attached to the upper end of the peripheral wall is provided with the annular protrusion 3. An elastic synthetic resin annular member 11 placed on the upper surface and standing up the cap fitting cylinder 15 from the inner periphery of the inward flange;
In the aerosol-type liquid ejection container comprising the synthetic resin cap 21 in which the lower end of the peripheral wall 12 is detachably fitted to the outer surface of the cap fitting cylinder 15 by loosely inserting the pressing head 7 into the inside,
A first tapered portion 31 having a lower inner diameter is formed on the lower inner surface of the cap fitting cylinder 15 and a plurality of dividing grooves 33 are formed in the annular member portion below the middle of the cap fitting cylinder 15 in the vertical direction. The end face is opened and vertically installed,
In addition, on the inner surface of the cap fitting cylinder 15, a push-down cylinder member 41 made of synthetic resin that hangs a second taper part 42 having the same shape as the first taper part 31 from the lower end of the cylinder part 43 is provided on the upper part of the cylinder part 43. And the second tapered portion 42 is fitted in contact with the inner wall surface of the first tapered portion,
Furthermore, a cylinder member lowering gap is provided between the lower end surface of the cylindrical member 41 and the top surface of the aerosol can top wall so that the cylindrical member 41 can be forcibly pressed down with respect to the annular member 11, and the lower portion of the cylindrical portion 43 is the first portion. An aerosol-type liquid ejection container characterized in that when the taper-shaped portion 31 penetrates into the lower end, the inner diameter of the lower end of the annular member peripheral wall 12 expands to be larger than the annular projection 3 of the aerosol can .

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