JP3056237U - Aerosol container cap - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To safely remove the contents such as gas without polluting the surroundings using a cap of an aerosol container. SOLUTION: It is made of an integrally molded plastic. A pressing piece 4 having a plastic hinge 42 is provided on the upper plate portion 13 of the cap body 1. Cap A with aerosol container 3
When the pressing piece 4 is pressed around the plastic hinge 42, the pressing piece 4 pushes the head portion 34, and the contents of the aerosol container 3 squirt out of the head portion 34 into the cap body 1.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cap for an aerosol container, and particularly to a cap made of an integrally molded plastic.

[0002]

[Prior art]

 Aerosol containers are widely used to spray paints, detergents, lubricating oils, chemicals, and fragrances. The contents of this type of aerosol container include the above-mentioned active ingredients such as the above-mentioned paints and a gas for pressurizing the active ingredients. Even after most of the active ingredients such as paints have been consumed, the internal pressure is often maintained at a high pressure by the residual gas, so it is desirable to extract the gas and then dispose of the aerosol container. ing. In addition, it may be desirable to discard the aerosol container after withdrawing such active ingredients because the remaining active ingredients are not necessarily harmless.

As a means for extracting the remaining gas or active ingredient, there is a method of piercing an aerosol container to form an opening, and ejecting the gas or active ingredient from the opening to extract the gas or active ingredient. There is a problem in safety, and there is also a problem that active ingredients such as paints are likely to erupt with the gas and contaminate nearby people and places.

On the other hand, Japanese Patent Application Laid-Open No. 10-53289 proposes a “lid provided with a gas release structure”. This lid is formed by adding a special shape or structure to a cap that is attached to and detached from the aerosol container.

[0005]

[Problems to be solved by the invention]

 However, in the technique described in the above-mentioned publication, there is an inconvenience that the cap must be once removed from the aerosol container and re-attached in an inverted posture when extracting the contents.

Further, when the aerosol container is pulled out with the top thereof in an upright posture, the cap attached to the top of the aerosol container in an inverted posture is open upward and remains. When a gas comes out with an active ingredient such as paint, the emitted active ingredient may scatter upwards and pollute nearby people and places. In order to avoid such a situation, it is conceivable that the aerosol container is placed in an inverted position and the opening of the cap is turned down and the opening of the cap is closed with a floor surface or the ground. In an aerosol container with a simple structure, it may happen that only the remaining gas gushes and the active ingredients such as paint stop erupting, and we also want to extract the remaining active ingredients such as paint. I can't respond to requests.

[0007] Further, the cap described in the above publication has a structure with a large amount of irregularities in order to be usable for degassing, which makes it difficult to integrally mold with plastic. This can easily lead to increased costs.

[0008] The present invention has been made under the above circumstances, and is similar to that described in the above publication, as long as the cap of the aerosol container is used for extracting gas, It is an object of the present invention to provide an inexpensive aerosol container cap whose structure is much simpler than that described in the above-mentioned publication and at the same time it is easy to use.

[0009]

[Means for Solving the Problems]

 The cap of the aerosol container according to the present invention is a cap which is attached to the aerosol container provided with a head portion for ejecting the contents by performing a pushing operation and covers the periphery and the upper portion of the head portion, and is made of plastic. Having an inner cap body and a pressing piece connected to the cap body via a plastic hinge, and the head being inserted through the pressing piece pressed around the plastic hinge. That is, the pressing operation of the section is performed.

[0010] In this invention, when the pressing piece is pushed with a finger or the like around the plastic hinge while the cap body is attached to the aerosol container, the pushing piece pushes the head portion and is the contents of the aerosol container. Gases and active ingredients erupt from the head. Since the head portion is covered with the cap at the periphery and at the upper portion, the content spouted from the head portion, particularly the active ingredient, is trapped inside the cap and does not scatter outside. For this reason, the active ingredient spouted from the head does not stain surrounding people or places. In addition, since the gas ejected from the head portion hits the cap and is discharged to the outside, there is no possibility that the ejected gas is strongly ejected to the surrounding people. Further, depending on the structure of the aerosol container, if the aerosol container equipped with the cap is placed in an inverted posture and the pressing piece is pushed in, the degassing can be performed without ejecting the active ingredient.

The pressing piece can be formed integrally with the cap by forming a narrow slit around a portion facing the head portion of the cap main body, except for a portion serving as a plastic hinge. Therefore, it is not always necessary to provide an uneven portion in the shape of the structural portion so that it can be used for degassing, which helps to facilitate plastic molding and reduce costs.

In the present invention, it is preferable that the cap body has a body portion covering the periphery of the head portion and a flat upper plate portion which covers an upper portion of the head portion and is inclined. With such a cap, the pressing piece can be formed by hollowing out the upper plate, and the plastic hinge can be provided at the lower end of the pressing piece. It is possible to easily and reliably perform the operation of holding the aerosol container equipped with the cap in the hand and pushing the pressing piece with the finger of the hand.

When the pressing piece is pushed in around the plastic hinge, the cover piece covering the gap between the free edge of the pushing piece and the edge of the opening formed in the pushing mark of the pushing piece is formed as described above. It is desirable to be provided on the cap body. With this configuration, when the pressing piece is pressed with the finger of the hand, the finger may be packed or scratched in the gap between the free edge of the pressing piece and the edge of the opening formed in the pressing mark. The risk of spillage is prevented by the cover pieces. The cover piece also suppresses the contents ejected from the head part from vigorously jumping out from the opening of the push mark.

[0014] The back surface of the pressing piece may have an uneven surface, and in such a case, a situation in which the pressing piece pressed by a finger of the hand comes into contact with the head portion and slips is suppressed, and The push operation of the pad portion can be performed smoothly.

[0015]

[Embodiment of the invention]

 FIG. 1 is a plan view of the cap A according to the present invention, FIG. 2 is a cross-sectional view of the cap A mounted on the aerosol container 3 taken along line II-II of FIG. It is sectional drawing for demonstrating the effect | action of the cap A.

The cap A is made of an integrally molded plastic. The cap A includes a cap body 1 having a cylindrical body portion 12 and a flat upper plate portion 13 inclined and connected to an upper portion of the body portion 12, and a pressing piece provided on the cap body 1. And 4. The cap body 1 is provided with an engagement protrusion 14 at an appropriate position inside the lower end of the body portion 12.

The aerosol container 3 is made of metal manufactured by sheet metal processing, and the body 31 and the upper lid 32 of the aerosol container 3 are connected by a winding connection. An edge frame 33 is formed. The cap A is mounted on the top of the aerosol container 3 by engaging the engaging projection 14 of the cap body 1 with the edge frame 33. In this mounting state, the lower end of the body portion 12 of the cap body 1 is in close contact with the entire periphery of the edge frame portion 33 so that a certain degree of liquid tightness is maintained. At the center of the upper lid portion 32 of the aerosol container 3, a stem 35 forming an ejection passage for contents protrudes upward. A nozzle 36 is detachable from the stem 35. In such an aerosol container 3, for example, by performing a pushing operation of pushing the stem 35 with the nozzle 36 attached thereto, the contents are ejected sideways from the nozzle 36, and when the pushing force is released, the stem 35 returns to the original position. It returns and the injection of the contents stops. When the pushing operation of the stem 35 without the nozzle 36 is performed, the contents are ejected upward from the stem 35, and when the pushing force is released, the stem 35 returns to the original position and the ejection of the contents stops. . Therefore, both the stem 35 and the nozzle 36 function as the head unit 34 that ejects the contents when the pushing operation is performed.

As shown in FIG. 2, when the cap A is attached to the aerosol container 3, the periphery and the upper part of the stem 35 and the nozzle 36 having the function as the head part 34 are covered with the cap A. A pressing piece 4 formed in a hollow shape is provided at a portion of the cap body 1 facing the head portion 34, specifically, at a substantially central portion of the upper plate portion 13 above the head portion 34. I have. As shown in FIG. 1, the pressing piece 4 is formed by forming four arc-shaped narrow slits 41 arranged in a circle on the upper plate portion 13, and is located between the slits 41. The parts are divided into one plastic hinge 42 and three breakable liners 43. In this embodiment, the plastic hinge 42 is provided at the lower end of the pressing piece 4.

In the cap A, when the pressing pieces 4 are strongly pressed from above to break the liners 43, the pressing pieces 4 are connected to the cap body 1 only by the plastic hinges 42. Therefore, when the cap A is mounted on the aerosol container 3 and the pressing piece 4 is pushed in with the finger of the hand around the plastic hinge 42 as shown by an arrow F in FIG. 3, the pressing piece 4 hits the nozzle 36 and Since the gas 36 is pushed in, the gas and the active ingredient, which are the contents of the aerosol container 3, are ejected from the nozzle 36 as shown by the arrow P. In this case, since the periphery and the upper part of the nozzle 36 are covered with the cap A, the contents ejected from the nozzle 36, particularly the active ingredient, hit the body 12 of the cap body 1 and the like and are confined therein, and fly outside. Does not scatter. For this reason, there is no possibility that the active ingredient ejected from the nozzle 36 pollutes the surrounding people and places, and the gas ejected from the nozzle 36 is strongly sprayed to the surrounding people. When only gas release is desired, the aerosol container 3 equipped with the cap A is placed in an inverted posture and the pressing piece 4 may be pushed in. In these cases, the gas ejected from the nozzle 36 is discharged to the outside from the opening 45 formed as a press mark on the upper plate portion 13 of the cap body 1 by pressing the pressing piece 4. By performing the operations described above, it is possible to easily remove the gas and the active ingredient remaining in the aerosol container 3 when disposing of the aerosol container 3 after consuming most of the active ingredient such as paint. become. If a material having a high water absorbency, such as tissue paper, is placed inside the cap A, the effective component such as the paint sprayed from the nozzle 36 is prevented from jumping out of the opening 45.

In the above, the operation when the pressing piece 4 presses the nozzle 36 has been described. However, the nozzle 36 may be removed and the stem 35 may be pressed by the pressing piece 4. In this case, as shown in FIG. 4, providing a convex portion 44 at the end of the pressing piece 4 at the eccentric portion of the tip of the stem 35 has an advantage that the pressing piece 4 is less likely to block the ejection port of the stem 35.

In the embodiment described with reference to FIGS. 1 to 3 and FIG. 4, the pressing piece 4 is provided on the inclined flat upper plate 13, and the plastic hinge 42 is provided on the lower end of the pressing piece 4. Therefore, the operation of pushing the pressing piece 4 with the finger of the hand holding the aerosol container 3 fitted with the cap A can be performed easily and reliably.

In the embodiment shown in FIGS. 1 to 3, when the pressing piece 4 is pressed in around the plastic hinge 42, the pressing piece 4 is formed on the free edge of the pressing piece 4 and the pressing trace of the pressing piece 4. The gap S between the opening 45 (see FIG. 3) and the edge of the opening 45 is covered by a cover piece 15 provided integrally with the cap body 1. With this configuration, there is no danger of the finger being packed or scratched in the gap S when the pressing piece 4 is pressed with the finger of the hand. In addition, the contents ejected from the head portion 34 are also prevented from vigorously jumping out of the opening 45. It is also possible to provide a cover piece that exerts a similar effect on the cap A shown in FIG.

FIG. 5 is a plan view showing the inside of the cap A. As shown in the figure, the back surface of the pressing piece 4 is an uneven surface 47. This uneven surface 47 can be formed, for example, in a knurled pattern. When the back surface of the pressing piece 4 has the uneven surface 47 as described above, the situation where the pressing piece 4 pressed by the finger of the hand comes into contact with the head portion (stem or nozzle) and slips is suppressed, and the head portion is suppressed. Can be performed smoothly.

In the present invention, the shape of the cap A is not limited to the shapes shown in FIGS. For example, the upper plate 13 may be horizontal as shown in FIG. Further, the upper plate may be hemispherical (not shown).

When the aerosol containers 3 are to be sold side by side in a store, for example, as shown by the phantom line in FIG. If the slit 41 is covered and hidden, the situation that the slit 41 becomes conspicuous and unsightly does not occur.

In FIGS. 1 to 6, the same or corresponding parts are denoted by the same reference numerals for simplification of description.

[0027]

[Effect of the invention]

 The present invention provides an inexpensive cap that is much simpler in structure and easier to use than the one described in the gazette described at the outset. Can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a cap according to the present invention.

FIG. 2 is a cross-sectional view of the cap mounted on the aerosol container, taken along line II-II of FIG.

FIG. 3 is a cross-sectional view for explaining the operation of a cap mounted on an aerosol container.

FIG. 4 is a cross-sectional view for explaining an operation of a cap having a pressing piece according to a modified example.

FIG. 5 is a plan view showing the inside of the cap.

FIG. 6 is a cross-sectional view of caps of different shapes mounted on an aerosol container.

[Explanation of symbols]

 Reference Signs List A Cap 1 Cap body 3 Aerosol container 4 Pressing piece 12 Body 13 Upper plate 15 Cover piece 34 Head 42 Plastic hinge 45 Opening formed in pressing trace of pressing piece 47 Uneven surface S Gap

Claims (4)

[Utility model registration claims] 1. A cap which is attached to an aerosol container provided with a head portion for ejecting contents by performing a pushing operation and covers a periphery and an upper portion of the head portion. It has a hollow cap body and a pressing piece connected to the cap body via a plastic hinge, and the pressing operation of the head portion is performed through the pressing piece pressed around the plastic hinge. An aerosol container cap characterized in that: 2. The method according to claim 1, wherein the cap body includes a body portion that covers the periphery of the head portion, and a flat upper plate portion that covers an upper portion of the head portion and is inclined, and the pressing piece cuts out the upper plate portion. The aerosol container cap according to claim 1, wherein the cap is formed and the plastic hinge is provided at a lower end of the pressing piece. 3. A cover piece that covers a gap between a free edge of the pressing piece and a rim of an opening formed in a pressing mark of the pressing piece when the pressing piece is pressed in around a plastic hinge. The cap of the aerosol container according to claim 1 or 2, wherein the cap is provided on the cap body. 4. The cap for an aerosol container according to claim 1, wherein a back surface of said pressing piece is formed in an uneven surface.