JP2002308361A - Cap serving as degasser for aerosol container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap serving as a degasser for aerosol container which safely extracts residual contents and gas with the strength thereof being weakend out of an aerosol container having a female valve and cannot be lost until the degassing is finished while preventing the extracted matters from being flown backward. SOLUTION: The bottom portion of the cap body 11 is made to serve as a top face 11a, a dent 13 adaptable to be engaged with a mountain cup M is formed at the top face, a cylindrical insertion part 15 projecting upward for fitting into a stem fitting hole N of the female valve is provided at the dent 13, a notched groove 17 adaptable to be communicating with the inside of the aerosol container is formed at the side of the insertion part, a degassing hole 16 communicating halfway with the inside of the insertion part 15 is provided at a projected part 18 at the center of the dent 13, and a gas discharging groove 20 communicating with a space below the dent 13 of the cap main body 11 through a communicating groove 19 communicating with the degassing hole 16 is formed at the projected part 18. The cap main body 11 is placed upside down, the dent 13 is engaged with the mountain cup M, and a valve B is pressed with the insertion part 15 fitted into the stem fitting hole N of the female valve, thereby degassing the container under the state of continuous ejection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a degassing / cap for an aerosol container, and more particularly relates to a cap for removing a gas or the like safely by reducing the momentum when discarding an aerosol container provided with a female valve. It was made.

[0002]

2. Description of the Related Art Since aerosol containers conventionally used are filled with contents and a propellant, it is required to release residual contents and residual gas when discarded.

[0003] Since it is necessary for the user to reliably release the residual contents and residual gas from the aerosol container, an aerosol container cap having a degassing function for easy release is required. Various proposals have been made, in which the contents, such as gas, are continuously jetted and discharged by applying the cap, which is normally used as a cap, in reverse at the time of disposal or the like.

[0004] As such a gas venting cap,
For example, in JP-A-8-324661, as shown in FIG. 4, a concave portion 2 is formed in a top surface portion 1a of a cap body 1, and a tip end portion of a stem S of an aerosol container A is fitted to a bottom center of the concave portion 2. An engaging through-hole 3 that can be fitted and locked at the middle of the hole is formed. When the cap body 1 is reversed and the mountain cup M of the aerosol container A is covered with the concave portion 2, the stem S is pressed. The engaging portion 2a is formed on the peripheral side surface of the concave portion 2 so that the residual gas or the residual content is ejected upward from the engaging through hole 3 and discharged.

[0005] By using such a degassing / cap, it is possible to easily discharge the remaining contents and gas simply by putting the cap body 1 upside down.

[0006] However, this gas release cap can release gas when the valve of the aerosol container A is a so-called male valve in which the stem S protrudes from the mountain cup M. It is not possible to vent an aerosol container with a female valve in which the actuator and stem used for some specific contents are integrally molded.

In view of this, a venting structure for an aerosol container provided with a female valve has been proposed.
In the degassing structure disclosed in -240587,
As shown in FIG. 5 in a degassed state in which the aerosol container A is mounted upside down, a fitting portion 4b having an upper surface portion 4a and a side surface portion and capable of being fitted to the upper portion of the aerosol container A is formed on the upper outer side. , Through hole 4 serving as a gas venting passage in upper surface portion 4a
(c) and a container connector (5) which can be inserted into the stem fitting hole (N) of the aerosol container (A) and has an insertion portion (5b) provided with a through hole (5a) therein.
c and 5a are connected to each other so that the insertion portion 5b stands up and the insertion portion 5b can be attached to the female valve. The insertion part 5b is fitted so as to fit into the stem fitting hole N of the aerosol container A, the valve B is pressed by the insertion part 5b, and the injection direction is changed to the direction changing part 4d so that the gas is released. I have to.

According to such a degassing structure, degassing can be performed even in the aerosol container A having a female valve.

The degassing device disclosed in Japanese Patent Application Laid-Open No. 2001-19066 corresponds to an aerosol container A provided with a valve B for attaching and detaching a stem as a degassing device 6, as shown in FIG. In this case, the push rod 7 is fitted into the stem fitting hole N to push down the diaphragm, so that gas is extracted from the through hole 9 penetrating the intermediate wall 8 vertically.

[0010]

However, in the former gas venting structure, the container coupling tool 5 is attached to the gas venting tool 4, and the two through holes 4c and 5a are communicated to perform gas venting. When the valve B is pushed down by the insertion portion 5b, the residual gas or the like is jetted from the through holes 4c and 5a with the same force, and hits the direction change portion 4d at the tip portion. Although it is ejected, it has a problem that it is easily scattered due to its momentum, and in particular, there is a problem that it becomes more remarkable when a large amount of the residue is not completely used.

Further, the container connecting device 5 is used in the case of an aerosol container A having a female valve with a detachable type. When doing so, there is a problem that there is a risk of being lost.

Further, in the latter degassing device 6 such as a diaphragm valve, if degassing is performed with the contents remaining, the residual contents discharged above the intermediate wall 8 accumulate on the intermediate wall 8. However, there is a problem that the water flows backward from the through hole 9 to the mountain cup M side of the aerosol container A.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and it is possible to reduce the force of residual contents and residual gas in an aerosol container provided with a female valve and to safely remove the residual gas. An object of the present invention is to provide a gas venting cap for an aerosol container which is not lost before venting and does not cause backflow of the discharged contents.

[0014]

According to a first aspect of the present invention, there is provided a degassing / capping cap for an aerosol container according to the present invention. In the center of the top surface, a cylindrical recess that can be locked to one of the inner and outer peripheral edges of the mountain cup of the aerosol container is formed, and in the center of the recess, the stem fitting hole of the female valve of the aerosol container is formed. A cylindrical insertion portion to be fitted is provided so as to protrude upward, and a cutout groove which can communicate with the inside of the aerosol container is formed on a side wall of the insertion portion, while projecting downward at a central portion of the concave portion. A gas vent hole that communicates with the inside of the insertion portion to the middle of the projecting portion, and a gas that communicates with a space below the concave portion of the cap main body through a communication groove that communicates with the gas vent hole. Discharge The female valve is formed at the insertion portion inserted into the stem fitting hole when the cap body is reversed and the concave portion is locked on one of the inner and outer edges of the mountain cup, while the cap body is inverted. The concave portion and the insertion portion are arranged so that gas can be released by pressing the recess.

According to this gas venting cap for an aerosol container, the bottom portion of the cylindrical cap body having a bottom is a top surface, and the center portion of the top surface is engaged with one of the inner and outer peripheral edges of the mountain cup of the aerosol container. A possible cylindrical recess is formed, and a cylindrical insertion portion fitted into the stem fitting hole of the female valve of the aerosol container is provided at the center of the recess so as to protrude upward, and this insertion portion is provided. A notch groove capable of communicating with the inside of the aerosol container is formed on the side wall of the concave portion, while a projecting portion is formed by projecting downward at the center of the concave portion, and a gas vent hole communicating with the inside of the insertion portion to the middle of the projecting portion. In addition, a gas discharge groove communicating with the space below the concave portion of the cap main body is formed in the protruding portion through a communication groove communicating with the gas vent hole, and the cap main body is turned upside down to mount the concave portion. The female part valve is pressed by the insertion part inserted into the stem fitting hole when locked to one of the inner and outer edges of the ten cup, and the concave part and the insertion part are arranged so that gas can be released. The cap body is turned upside down and the recess is locked to the mountain cup, so that the insertion part is fitted into the stem fitting hole of the female valve, and the stem is pressed to be in a squirting state. Even in an azole container equipped with a valve, the residual contents and residual gas can be released from the narrow flow path to the wide flow path by releasing the residual contents and residual gas from the narrow flow path to the wide flow path through the gas vent hole, the communication groove, and the gas discharge groove into the cap body. It is possible to safely vent the gas, there is no danger of the cap body and the insertion part being integrally lost, and by forming a communication groove in the protruding part, the backflow of the discharged contents is prevented.

According to a second aspect of the present invention, there is provided a gas venting cap for an aerosol container in addition to the first aspect, wherein the communication groove communicates with the gas venting hole and a space below a concave portion of the cap body. And the gas discharge groove is formed of two grooves formed at diagonal positions.

According to the gas venting cap of the aerosol container, the communication groove and the gas exhaust groove communicating with the gas vent hole and the space below the concave portion of the cap body are formed in two diagonal grooves. By discharging the gas from a narrower flow path to a wider flow path, the force can be surely weakened and gas can be vented.

Further, the gas venting cap for an aerosol container according to claim 3 of the present invention is provided by claim 1 or 2.
In addition to the configuration described above, the protrusion in which the communication groove and the gas discharge groove are formed is formed without projecting downward at the center of the concave portion of the cap body.

According to the gas venting cap of the aerosol container, the projecting portion in which the communication groove and the gas exhaust groove are formed is formed without projecting downward at the center of the concave portion of the cap body. In this way, the structure can be further simplified.

According to a fourth aspect of the present invention, there is provided a gas venting cap for an aerosol container according to any one of the first to third aspects, wherein the gas discharge groove has a flow passage cross-sectional area which is smaller than that of the communication groove. The flow path cross-sectional area is made larger to reduce the force of the contents such as gas to be discharged so that gas can be released.

According to the gas venting cap of the aerosol container, the cross-sectional area of the gas discharge groove is formed to be larger than the cross-sectional area of the flow path of the communication groove so that the content of the discharged gas or the like is increased. It is configured so as to be able to release gas by weakening, so that the gas can be ejected from a narrow flow path to a wide flow path, and the force can be more reliably reduced and released.

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an aerosol container according to an embodiment of the present invention;

FIGS. 1 to 3 show an embodiment of an aerosol container degassing / capping device according to the present invention. FIG. 1 is a plan view, a longitudinal sectional view, and a bottom view, and FIG. , A partially enlarged plan view, a longitudinal sectional view, a bottom view, and other longitudinal sectional views. FIG. 3 is a longitudinal sectional view of a degassing state and a partially enlarged sectional view.

The aerosol container degassing / cap 10 is made of a cylindrical plastic with a bottom which is engaged with a torso connection D with a mountain cup M which covers the upper part of the cylindrical can body of the aerosol container A. Of the cap body 11, and usually the bottom portion of the cap body 11 is
a, the opening is downwardly mounted so as to cover the upper part of the can body of the aerosol container A, and in order to maintain the mounted state, there are four locking portions 12 protruding inward on the inner circumference of the opening in the circumferential direction. And is integrally formed so as to be engaged with the lower part of the body connecting portion D on the upper part of the can body.

The venting cap 10 is provided with a mechanism for upside down and attached to the aerosol container A for venting. Hereinafter, a state in which a normal bottom portion is upward (FIG. 1A) , (B), (c)), the bottom portion is a top surface 11a.

In the cap body 11, a cylindrical recess 13 having an inner diameter corresponding to the outer diameter of the peripheral connection portion C closing the upper end of the mountain cup M of the aerosol container A is provided at the center of the top surface 11a which is recessed one step. It is formed as a second-stage depression, and the locking portion 14 to the peripheral connection portion C of the mountain cup M protrudes inward on the inner periphery of the upper end portion of the side wall portion of the concave portion 13 and is spaced apart by 30 degrees in the circumferential direction. It is divided into four parts, and each part for 60 degrees is integrally formed.

On the other hand, in this aerosol container A, a valve B having a stem fitting hole N constituted by a so-called female valve is immersed in the nozzle hole of the nozzle forming opening in the center of the mountain cup M. Is provided.

At the center of the bottom surface of the concave portion 13 of the cap body 11, a cylindrical insertion portion having an outer diameter fitted into the inner periphery of the stem fitting hole N of the valve B composed of a female valve. Fifteen
Project upward, are integrally formed, and protrude into the first-stage recess above the second-stage recess.

A gas vent hole 16 is formed at the center of the insertion portion 15, and a cutout groove 17 is formed in the upper end side wall to communicate with the gas vent hole 16.

In the center of the bottom of the concave portion 13 of the cap body 11, a columnar projecting portion 1 projecting downward is formed.
8 is formed integrally, and the gas vent hole 16 of the insertion portion 15 is extended and formed integrally with the intermediate portion of the projecting portion 18 and communicates with the central portion of the lower end of the gas vent hole 16 to form a longitudinal cross-section. Is an inverted trapezoidal shape (see FIGS. 2 and 3 in an inverted state)
A communication groove 19 having a rectangular cross-sectional shape is formed and a lower end portion is closed. A gas discharge groove 20 communicating with both sides of the communication groove 19 and opening on the lower end surface and side surfaces of the protruding portion 18 is formed. Is formed with a width several times as wide as the communication groove 19 and communicates with the space below the recess 13 of the cap body 11.

Although the communication groove 19 and the gas discharge groove 20 are formed in the projecting portion 18 at the center of the concave portion 13, the communication groove 19 and the gas discharge groove 20 are formed in the bottom plate of the concave portion 13 as shown in FIG. The gas discharge groove 20 may be formed, and the protrusion may not be formed. In this case, it is desirable that the outer wall of the gas discharge groove 20 be an inclined surface so that the gas can be smoothly discharged into the cap body 11.

In the gas venting cap 10 constructed as described above, when the insertion portion 15 of the cap body 11 is fitted into the stem fitting hole N of the aerosol container A instead of the stem with the button, the insertion portion 15 When the valve B is pushed down through the stem fitting hole N to be in a jetting state in this state, the outer periphery of the valve is fitted into the stem fitting hole N. The notch groove 17 of the insertion portion 15, the gas vent hole 16 of the insertion portion 15 and the protrusion 18, the substantially inverted trapezoidal communication groove 19, and the gas discharge grooves 20 on both sides communicate with the space below the cap body 11. , Gas and the like are injected into the cap body 11 from within the azole container A.

When the insertion portion 15 of the cap body 11 is inserted into the injection state instead of the stem with a button, a flow path having a circular cross section of the insertion portion 15 and the gas vent hole 16 of the projection 18 is provided. The rectangular cross-sectional area of the communication groove 19 is smaller than the cross-sectional area, and the gas discharge groove 20 communicating with both sides of the communication groove 19 has a larger cross-sectional area. The gas to be discharged is injected from a narrow flow path (communication groove 19) through a wide flow path (gas discharge groove 20), and the gas can be discharged with a reduced force.

Therefore, the cap body 11 is turned upside down in order to perform degassing in this manner, and
4 is locked to the peripheral connecting portion C of the mountain cup M of the aerosol container A, so that the valve B is pressed by the insertion portion 15 fitted in the stem fitting hole N so as to be in a continuous injection state. And the protrusion height of the insertion portion 15 are determined.

With the gas release / cap 10 constructed as described above, the aerosol container A as shown in FIG.
When removing residual contents such as gas, use the cap 13 upside down to lock the recess 13 of the cap body 11 with the peripheral connection portion C of the mountain cup M of the aerosol container A, or When the peripheral connecting portion C of the mountain cup M of the aerosol container A which is turned upside down is fitted into the concave portion 13 and locked, the valve B of the female valve is pressed by the insertion portion 15 fitted into the stem fitting hole N. As a result, the gas can be discharged from the gas discharge groove 20 into the cap body 11 with reduced force, and gas can be easily released even in the case of the aerosol container A having a female valve.

In the gas venting cap 10, the jetting direction is set to be horizontal from the gas venting hole 16 through the two lateral communication grooves 19, and the gas exhaust groove 20 opened from the side is opened to the inside of the cap body 11. The remaining gas and the residual gas are completely discharged and the residual content and the residual gas are completely discharged, so that it is possible to prevent the residual content and the residual gas from scattering on the user's face or the like.

Further, in the gas venting cap 10, when the cap main body 11 is reversed and the cap body 11 is engaged with the peripheral connecting portion C of the mountain cup M of the aerosol container A by the engaging portion 12, the outer periphery of the insertion portion 15 is formed. Is fitted into the stem fitting hole N to be in close contact with the inner periphery, and the protruding portion 18 is located above the concave portion 13. It can be stored by the height of the depression of the second step and the height of the protruding portion 18,
The residual contents can be discharged into the cap body 11 without flowing back to the mountain cup M side of the aerosol container A.

Further, in this degassing / capping cap 10, the gas discharging groove 20 formed in the protruding portion 18 of the concave portion 13 of the cap body 11 is formed such that the inner side in the radial direction is closer to the center than the venting hole 16 and the upper side in the axial direction is the gas. By arranging it so as to coincide with the bottom surface of the hole 16, it can be easily formed by integral molding without using a special molding method when molding with plastic.

In the above embodiment, the gas discharge groove and the communication groove are formed by two grooves formed at diagonal positions. However, the present invention is not limited to this. The cross-sectional shape of the groove is not limited to the rectangular cross-section shown in the illustrated example, but may be another cross-sectional shape such as a U-shape or a semicircle.

Further, as is clear from the description of the above-described embodiment, degassing in the present invention includes not only removing residual gas but also removing residual gas and residual contents.

[0041]

As specifically described above with reference to one embodiment, according to the aerosol container degassing cap of the first aspect of the present invention, the bottom portion of the bottomed cylindrical cap body is covered with the ceiling. A cylindrical concave portion is formed at the center of the top surface and can be engaged with any of the inner and outer peripheral edges of the mountain cup of the aerosol container. The stem fitting hole of the female valve of the aerosol container is formed at the center of the concave portion. A cylindrical insertion portion to be fitted into is provided so as to protrude upward, and a cutout groove capable of communicating with the inside of the aerosol container is formed on a side wall of the insertion portion, while projecting downward into a central portion of the concave portion. A projecting portion is formed, a gas vent hole communicating with the inside of the insertion portion is formed halfway of the projecting portion, and communicates with a space below the concave portion of the cap main body through a communication groove communicating with the gas vent hole. Gas emissions The female valve is formed at the insertion portion inserted into the stem fitting hole when the cap body is reversed and the concave portion is locked on one of the inner and outer edges of the mountain cup, while the cap body is inverted. The concave portion and the insertion portion are arranged so as to be able to release gas by pressing the cap body. By inverting the cap body and locking the concave portion to the mountain cup, the insertion portion is fitted with the stem of the female valve. While being fitted into the mating hole, the stem is pressed to be in a squirting state, and even in an azole container equipped with a female valve, residual contents and residual gas are discharged into the cap body via the gas vent hole, the communication groove and the gas discharge groove. In addition to being able to discharge, the gas can be released safely by reducing the force from the narrow flow path to the wide flow path, and the cap body and the insertion part are integrated and there is no risk of loss, Department and the backflow of the contents can be accumulated the contents by the projecting portion can be prevented.

Further, according to the gas vent cap of the aerosol container according to the second aspect of the present invention, the communication groove and the gas discharge groove communicating with the gas vent hole and the space below the concave portion of the cap body are paired. Since two grooves are formed at the corners, the gas is released from a narrower flow path to a wider flow path, so that the momentum can be surely weakened and the gas can be vented, and the gas can be vented more safely. .

Further, according to the gas venting cap of the aerosol container according to the third aspect of the present invention, the projecting portion in which the communication groove and the gas discharging groove are formed is downwardly positioned at the center of the concave portion of the cap body. Since it is formed without projecting, the structure can be further simplified and the cost can be reduced.

Further, according to the gas venting cap of the aerosol container according to the fourth aspect of the present invention, the gas discharge groove is formed such that the cross-sectional area of the flow channel is made larger than the cross-sectional area of the communication groove to discharge the gas. Since the structure is configured so as to be able to release gas by weakening the force of contents such as gas, the gas can be ejected from a narrow flow path to a wide flow path to more reliably weaken and discharge the gas.

[Brief description of the drawings]

FIG. 1 is a plan view, a longitudinal sectional view, and a bottom view of an embodiment of an aerosol container degassing / cap according to the present invention.

FIG. 2 is an enlarged perspective view of a part, an enlarged plan view, a longitudinal sectional view, a bottom view, and another longitudinal sectional view of a part of an aerosol container according to an embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view of a gas venting state according to one embodiment of the gas venting cap of the aerosol container of the present invention;
It is an expanded sectional view of a part.

FIG. 4 is a vertical sectional view of a gas venting cap of an aerosol container provided with a conventional male valve, and a longitudinal sectional view of a gas venting state.

FIG. 5 is an enlarged cross-sectional view of a part of a degassing state of a degassing structure of a conventional aerosol container provided with a female valve.

FIG. 6 is a vertical cross-sectional view of a degassing tool for an aerosol container provided with a conventional female valve and a vertical cross-sectional view in a degassing state.

[Explanation of symbols]

 Reference Signs List A Aerosol container S Stem M Mountain cup C Peripheral connecting portion D Body connecting portion N Stem fitting hole B Valve 10 Cap for aerosol container degassing and cap 11 Cap body 11a Top surface 13 Recess 14 Locking portion 15 Insert portion 16 Gas Hole 17 Notch groove 18 Projection 19 Communication groove 20 Gas exhaust groove

Continued on front page F term (reference) 3E014 PA01 PB01 PD01 PE17 PE22 PF04 4F033 RA02 RB03 RB08 RC21

Claims (4)

[Claims] 1. A bottom portion of a cylindrical cap body with a bottom is formed as a top surface, and a cylindrical concave portion is formed at a central portion of the top surface so as to be engageable with one of inner and outer peripheries of a mountain cup of an aerosol container. At the center of the recess, a cylindrical insertion portion fitted into the stem fitting hole of the female valve of the aerosol container is provided so as to protrude upward, and the side wall of the insertion portion can communicate with the inside of the aerosol container. While forming the notch groove, a projecting portion is formed by projecting downward at the center of the concave portion, and a gas vent hole communicating with the inside of the insertion portion is formed halfway through the projecting portion, and the gas vent hole is communicated with the gas vent hole. A gas discharge groove communicating with the space below the concave portion of the cap body is formed in the protruding portion through the communicating groove, and the cap body is reversed to lock the concave portion on one of the inner and outer edges of the mountain cup. The above Degassing combined cap of an aerosol container, characterized in that by pressing the female valve in the insertion portion that is inserted into the arm engaging hole placing the insertion portion and the venting can be the recess. 2. The gas supply apparatus according to claim 2, wherein the communication groove and the gas discharge groove communicating with the gas vent hole and the space below the concave portion of the cap body are formed by two grooves formed at diagonal positions. A gas vent cap for an aerosol container according to claim 1. 3. The aerosol according to claim 1, wherein the projecting portion in which the communication groove and the gas exhaust groove are formed is formed without projecting downward at the center of the concave portion of the cap body. Gas vent cap for container. 4. The gas discharge groove according to claim 1, wherein a flow path cross-sectional area is made larger than a flow path cross-sectional area of said communication groove so as to reduce a force of a content such as a gas to be discharged so that gas can be released. The degassing / capping cap for an aerosol container according to any one of claims 1 to 3.