JP3810556B2 - 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 smaller outer diameter than the upper end of the peripheral wall is erected from the upper end of the peripheral wall via the shoulder, and the lower outer surface of the annular protrusion and the upper end of the peripheral wall An aerosol that has a concave groove between the outer surface and a central portion of the top wall penetrating the liquid jetting stem upward to urge the liquid jetting stem upward, and a pressing head with a nozzle fitted to the upper end of the stem. The lower end of the outer peripheral wall is engaged with the outer surface of the shoulder of the can body and the peripheral wall of the aerosol can, and the cap fitting cylinder is erected from the upper end of the outer peripheral wall via the first inward flange. The attached second inward flange is placed on the upper surface of the annular protrusion , and the inner peripheral wall is suspended from the lower surface of the second inward flange to fit the inner peripheral wall to the outer surface of the annular protrusion, and the lower end of the peripheral wall Engagement ridges fitted on the inner surface into the groove are provided. And the annular member, the outer surface of the cap fitting tube by loosely inserted the pressing head to the interior, which is formed in a cap fitted to the peripheral wall lower end detachably are known. 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 the annular member is securely fitted to the upper part of the aerosol can. Is big.
By the way, separation and collection of waste is desired from the viewpoint of recycling, which is regarded as important in building a recycling system that takes environmental load reduction into consideration. It is desirable that the aerosol can and the annular member made of synthetic resin can be easily separated.
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. For this reason, there is a possibility that it becomes difficult to separate and collect.
[0004]
The aerosol-type liquid ejection container according to claim 1 has a biting ridge protruding from the outer peripheral surface of the annular protrusion and an inner peripheral wall extending from the annular member so that the biting ridge is bitten into the inner peripheral wall inner surface. The annular member can be firmly attached to the aerosol can as before, and the biting ridge is formed so as to be unscrewable, so that the annular member can be easily removed from the aerosol can at the time of disposal. It is intended to promote collection.
[0005]
[Means for Solving the Problems]
First means, the annular projection 4 of the small outer diameter than the peripheral wall 2 an upper end portion via a shoulder portion 3 from the shell 2 the upper end, both is raised by tightening the top wall 5 an outer peripheral portion, and the top wall 5 A metal aerosol can 1 erected in an upwardly biased state by penetrating the center portion of the liquid jet stem 6, and the lower end of the outer peripheral wall 11 is engaged with the outer surface of the shoulder portion 3 of the aerosol can peripheral wall 2; The cap fitting cylinder 13 is erected from the upper end of the outer peripheral wall via the first inward flange 12, and the second inward flange 14 attached to the upper end of the cap fitting cylinder is placed on the upper surface of the annular protrusion 4. In an aerosol-type liquid ejection container having a resin-made annular member 10 and a synthetic resin-made push-down head 20 with a nozzle in which a stem fitting cylinder 22 is detachably fitted to the upper end of the liquid ejection stem 6. From the outer peripheral surface of the annular protrusion 4, a plurality of foods are formed in a short spiral shape. Only ridges 40 while projecting with its distal end at a corner, biting the second inward flange 14 the lower surface of the annular member 10, the biting metal biting ridges in diameter than the distal yen ridge 40 The inner peripheral wall 41 formed so as to be suspended was suspended, the inner peripheral wall was fitted to the outer surface of the annular protrusion 4, and the biting ridge 40 was screwed into the inner surface of the inner peripheral wall 41 so as to be screwed off.
The second means includes the first means, and plastic deformation in the diameter increasing direction of the inner peripheral wall 41 is formed at a corner between the radial intermediate portion of the second inward flange 14 and the inner surface of the inner peripheral wall 41. A plurality of reinforcing plates 42 in the radial direction to prevent the above are formed.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an aerosol type liquid ejection container according to the present invention will be described with reference to the drawings. First, conventionally known portions of the container will be described. 1 is a metal aerosol can, the annular protrusion 4 having a smaller outer diameter than the upper end portion of the peripheral wall 2 from the upper end portion of the peripheral wall 2 through the shoulder portion 3, and the outer peripheral portion of the top wall 5 are wound together to stand up, And the center part of the top wall 5 is penetrated, and the stem 6 for liquid ejection stands up in an upward biased state.
[0007]
An annular member 10 made of synthetic resin engages the lower end of the outer peripheral wall 11 with the outer surface of the shoulder 3 of the aerosol can peripheral wall 2, and connects the cap fitting cylinder 13 from the upper end of the outer peripheral wall via the first inward flange 12. The second inward flange 14 protrudes from the upper end of the cap fitting cylinder, and the second inward flange is placed on the upper surface of the annular protrusion 4. Reference numeral 15 denotes a first guide tube that stands up from the inner periphery of the second inward flange 14.
[0008]
20 is a pressing head with a nozzle made of synthetic resin, and a stem fitting cylinder 22 is vertically suspended from the center of the lower surface of the top wall of the second guide cylinder 21 that rises up and down from the lower end of the first guide cylinder 15; The lower end portion of the stem fitting cylinder is detachably fitted to the outer surface of the upper end portion of the liquid ejection stem 6.
[0009]
Reference numeral 30 denotes a cap, in which the push-down head 20 with a nozzle is loosely inserted, and the lower end of the peripheral wall is detachably fitted to the outer surface of the cap fitting tube 13.
[0010]
In the present invention, a plurality of biting ridges 40 in a short spiral shape are projected from the outer peripheral surface of the annular protrusion 4 in the illustrated example so that the tip end portion is a corner portion and the acute portion is illustrated in the illustrated example. Further, from the lower surface of the second inward flange 14 of the annular member 10, an inner peripheral wall 41 having a diameter smaller than the tip circle of the biting ridge 40, which is substantially the same as the outer diameter of the annular protrusion 4 in the illustrated example, is suspended. The inner peripheral wall is fitted to the outer surface of the annular protrusion 4, and the biting ridge 40 is screwed into the inner surface of the inner peripheral wall 41 so as to be screwed off.
[0011]
A plurality of radial reinforcing plates 42 that prevent plastic deformation in the radially expanding direction of the inner peripheral wall 41 are provided in the circumferential direction at the corners between the radial intermediate portion of the second inward flange 14 and the inner surface of the inner peripheral wall 41. It is preferable to form them at regular intervals. The lower surface of the reinforcing plate 42 is brought into contact with the upper surface of the annular protrusion 4 as shown.
[0012]
Next, the operation of this embodiment will be described.
In order to assemble the annular member 10 to the aerosol can 1, the inner peripheral wall 41 may be fitted to the outer surface of the annular protrusion 4 until the lower surface of the reinforcing plate 42 contacts the upper surface of the annular protrusion 4. Since the biting ridges 40 bite into the lower inner surface of the inner peripheral wall 41 made of synthetic resin, the annular member 10 is firmly fixed to the aerosol can 1.
At the time of disposal, the pressing head with nozzle 20 is pulled upward to remove it from the liquid ejection stem 6, and then the annular member 10 is rotated to be screwed off from the annular protrusion 4.
[0013]
【The invention's effect】
The aerosol-type liquid ejection container according to claim 1 has a biting ridge protruding from the outer peripheral surface of the annular protrusion, and an inner peripheral wall is suspended from the annular member, and the inner peripheral wall is fitted to the annular protrusion. Since the biting ridge bites into the inner surface of the inner peripheral wall, the annular member can be firmly attached to the aerosol can as before, and the biting ridge can be screwed off from the inner peripheral wall. The member can be easily removed from the aerosol can, and therefore, the separation and collection at the time of disposal can be promoted.
[Brief description of the drawings]
FIG. 1 is a front view of a cross section of a main part of an aerosol type liquid ejection container according to the present invention.
FIG. 2 is an enlarged cross-sectional view of the main part, similarly.
FIG. 3 is a perspective view of an annular protrusion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Aerosol can 2 Perimeter wall 3 Shoulder part 4 Annular protrusion 5 Top wall 6 Stem 10 for liquid ejection Annular member 11 Outer peripheral wall 12 First inward flange 13 Cap fitting cylinder 14 Second inward flange 20 Depressing head 22 with nozzle Stem fitting tube 40 Biting ridge 41 Inner peripheral wall

Claims (2)

An annular protrusion 4 having a smaller outer diameter than the upper end of the peripheral wall 2 is erected from the upper end of the peripheral wall 2 via the shoulder 3, and the outer peripheral part of the top wall 5 is wound together to stand up, and the central part of the top wall 5 penetrates The lower end of the outer peripheral wall 11 is engaged with the outer surface of the shoulder 3 of the aerosol can peripheral wall 2 and the metal aerosol can 1 standing up in a state where the liquid jetting stem 6 is biased upward. A synthetic resin annular member 10 in which a cap fitting cylinder 13 is erected via an inward flange 12 and a second inward flange 14 attached to the upper end of the cap fitting cylinder is placed on the upper surface of the annular protrusion 4. And an aerosol-type liquid ejection container having a nozzle-pressing head 20 made of a synthetic resin in which a stem fitting cylinder 22 is detachably fitted to the upper end of the liquid ejection stem 6. From the above, a plurality of biting ridges 40 in a short spiral shape While projecting by a tip corner portion, the second inward flange 14 the lower surface of the annular member 10, among which is formed to be bite metallic biting ridges in diameter than the distal yen bite ridges 40 An aerosol-type liquid jet characterized in that a peripheral wall 41 is suspended, the inner peripheral wall is fitted to the outer surface of the annular protrusion 4 and the biting ridge 40 is screwed into the inner surface of the inner peripheral wall 41 so as to be able to be screwed off. container. A plurality of reinforcing plates 42 in the radial direction for preventing plastic deformation in the diameter increasing direction of the inner peripheral wall 41 are formed at the corners between the radial intermediate portion of the second inward flange 14 and the inner surface of the inner peripheral wall 41. The aerosol-type liquid ejection container according to claim 1, wherein:

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