JP2013112364A - Aerosol valve and aerosol product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerosol valve capable of preventing a content from flowing into between a mountain cup and a cover when the content of an aerosol product is filled through a hole for a stem of the mountain cup from the outside to the inside of the aerosol product.SOLUTION: The aerosol valve 30 includes: the stem 70 for jetting the content of the aerosol product 10; the mountain cup 40 for being fitted on a container 20 for storing the content; and a cover 50 made of a synthetic resin for covering a part to be the inner side of the container 20 of the mountain cup 40 when the mountain cup 40 is fitted to the container 20, wherein the mountain cup 40 is formed with a hole 40a for the stem being a through-hole into which the stem 70 is inserted, and the mountain cup 40 includes a cover pinching part 43 for pinching and fixing the cover 50 in the neighborhood of the hole 40a for the stem.

Description

  The present invention relates to an aerosol valve for use in aerosol products.

  2. Description of the Related Art Conventionally, an aerosol valve that includes a stem for injecting the contents of an aerosol product and a mountain cup to be attached to a container that stores the contents is known (see Patent Document 1). .) The mountain cup has a stem hole that is a through hole into which the stem is inserted. Further, the mountain cup is provided with a resin coating on a portion that becomes the inner side of the container when attached to the container. This resin coating prevents problems caused by the mountain cup touching the contents, such as the metal forming the mountain cup being corroded by the contents and the metal forming the mountain cup melting into the contents. Is provided.

JP 2000-226881 A

  The inventor of the present application considered that a problem caused when the mountain cup comes into contact with the contents is prevented by a cover made of a synthetic resin separately from the mountain cup. However, the inventor of the present application, when the mountain cup is attached to the container, when the aerosol valve is provided with a cover made of a synthetic resin that covers a portion of the mountain cup that becomes the inside of the container, the content of the aerosol product is The present inventors have found a problem that the contents flow between the mountain cup and the cover when the aerosol product is filled from the outside to the inside through the hole for the stem of the mountain cup.

  Therefore, the present invention prevents the content of the aerosol product from flowing between the mountain cup and the cover when the content of the aerosol product is filled from the outside to the inside through the hole for the stem of the mountain cup. It is an object to provide an aerosol valve that can be used.

  The aerosol valve of the present invention includes a stem for injecting the contents of an aerosol product, a mountain cup to be attached to a container for storing the contents, and the mountain cup when the mountain cup is attached to the container. A cover made of a synthetic resin that covers a portion of the mountain cup that becomes the inside of the container, and the mountain cup has a stem hole that is a through hole into which the stem is inserted, The mountain cup includes a cover sandwiching portion that sandwiches and fixes the cover in the vicinity of the stem hole.

  With this configuration, the aerosol valve of the present invention has the mountain cup sandwiched and fixed in the vicinity of the stem hole so that the contents of the aerosol product can be filled from the outside to the inside of the aerosol product through the stem hole. In this case, the contents can be prevented from flowing between the mountain cup and the cover.

  Further, the mountain cup of the aerosol valve of the present invention includes a hole forming end that is an end forming the hole for the stem, and the hole forming end constitutes a part of the cover sandwiching portion. The cover sandwiching portion may be fixed by sandwiching the cover by the hole forming end pressing the cover in the extending direction of the stem.

  Due to this configuration, the aerosol valve of the present invention has a hole-forming end portion that is less than the configuration in which the hole-forming end portion presses the cover between the cover and the stem in a direction perpendicular to the stem extending direction. Since it can keep away from the inside of a product, generation | occurrence | production of the malfunction which arises when the content of an aerosol product touches a hole formation edge part can be suppressed.

  Moreover, the said cover of the aerosol valve of this invention may be provided with the sealing part which seals the clearance gap between the said container and the said mountain cup when the said mountain cup is attached to the said container.

  With this configuration, the aerosol valve according to the present invention has not only a problem caused by the mountain cup touching the contents of the aerosol product, but also the contents of the aerosol product through the gap between the aerosol product container and the mountain cup. Leakage from the inside of the product to the outside can be prevented by the same cover.

  Moreover, the aerosol product of this invention is equipped with the aerosol valve of this invention, and the said container to which the said aerosol valve was attached, It is characterized by the above-mentioned.

  With this configuration, the aerosol product of the present invention has the mountain cup sandwiched and fixed in the vicinity of the stem hole, so that when the contents are filled from the outside through the stem hole, The contents can be prevented from flowing between the cup and the cover.

  In the aerosol valve of the present invention, when the content of the aerosol product is filled from the outside to the inside of the aerosol product via the stem hole of the mountain cup, the content flows between the mountain cup and the cover. Can be prevented.

It is side surface sectional drawing of the aerosol product which concerns on one embodiment of this invention. It is side surface sectional drawing of the mountain cup shown in FIG. 1 before a cover is attached. It is side surface sectional drawing of the cover shown in FIG. 1 before being attached to a mountain cup. (A) It is a figure which shows the state by which the cover was pushed into the mountain cup shown in FIG. (B) It is a figure which shows the state in the middle of the mountain cup shown to Fig.4 (a) being deform | transformed by press work. It is a figure which shows the state in which the cover was attached to the mountain cup shown in FIG. It is side surface sectional drawing of the aerosol product which concerns on one embodiment of this invention in the example different from the example shown in FIG. It is a figure which shows the state by which the cover was attached to the mountain cup in the example shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the aerosol product according to the present embodiment will be described.

  FIG. 1 is a side sectional view of an aerosol product 10 according to the present embodiment.

  As shown in FIG. 1, the aerosol product 10 includes a container 20 for storing contents, an aerosol valve 30 attached to the container 20, and a button 90 made of a synthetic resin attached to the aerosol valve 30. .

  Hereinafter, a space surrounded by the container 20 and the aerosol valve 30 is referred to as a container internal space 10a.

  The container 20 is made of metal and has a resin coating on the inner surface. The container 20 has a bead portion 22 formed around the opening 21. The contents of the container 20 also include a propellant such as a liquid gas. In the following, an example in which powder and liquid gas as a propellant are contents will be described.

  The aerosol valve 30 includes a metal mountain cup (Mounting Cup) 40 to be attached to the container 20, and a portion of the mountain cup 40 that becomes the inner side of the container 20 when the mountain cup 40 is attached to the container 20. A cover 50 made of synthetic resin, a housing 60 made of synthetic resin fixed to the mountain cup 40 inside the container 20, a stem 70 made of synthetic resin for injecting the contents, and the mountain cup 40 A rubber stem rubber 81 sandwiched between the housings 60 and having the stems 70 inserted therein; a metal spring 82 housed in the housing 60 and biasing the stems 70 toward the outside of the container 20; A synthetic resin pipe 83 attached to the housing 60 inside the container 20. That.

  Hereinafter, a space surrounded by the housing 60, the stem 70, and the stem rubber 81 is referred to as a valve inner space 10b.

  The mountain cup 40 has a stem hole 40a, which is a through hole into which the stem 70 is inserted, formed in the center. The mountain cup 40 includes a container mounting portion 41 that is attached to the bead portion 22 of the container 20 across the cover 50, a housing holding portion 42 that is provided in the center and holds the housing 60, and a cover in the vicinity of the stem hole 40a. And a cover sandwiching portion 43 that sandwiches and fixes 50.

  The cover sandwiching portion 43 is a sandwich that connects the hole forming end 43a, which is the end forming the stem hole 40a, and the housing holding portion 42 and the hole forming end 43a to sandwich the cover 50 together with the hole forming end 43a. Connection part 43b. The cover sandwiching portion 43 sandwiches and fixes the cover 50 when the hole-forming end portion 43a presses the cover 50 in the direction indicated by the arrow 30a that is the direction in which the stem 70 extends.

  The cover 50 seals the gap between the container 20 and the mountain cup 40 when the mountain cup 40 is attached to the container 20 and the sandwiched end 51 that is an end sandwiched between the cover sandwiching parts 43 of the mountain cup 40. And a seal portion 52 which is a slip end portion.

  The housing 60 has a slit 60a formed in a portion held by the housing holding portion 42 of the mountain cup 40, and a vapor tap hole 60b that allows the container inner space 10a and the valve inner space 10b to communicate with each other in order to distribute the vaporized gas. And a main hole 60c that allows the valve internal space 10b and the flow path 83a of the pipe 83 to communicate with each other to circulate gas and powder in a liquid state. The housing 60 includes a plurality of radial ribs 61 for forming a flow path between the housing 60 and the stem 70. When the stem 70 is not pushed down, the valve inner space 10b is filled with the gas that has been vaporized in the container inner space 10a and introduced through the vapor tap hole 60b.

  The stem 70 includes a non-penetrating ejection hole 71 for ejecting the contents of the container 20 to the outside of the container 20 and a stem hole 72 communicating with the ejection hole 71.

  The stem rubber 81 is formed with a hole 81a through which the stem 70 is inserted in the direction indicated by the arrow 30a.

  The button 90 includes an operation unit 91 to be pressed by a user and a stem attachment unit 92 that is attached to the stem 70 of the aerosol valve 30. The button 90 is formed with an injection hole 90a for injecting the content injected from the stem 70 to which the stem attachment portion 92 is attached to the outside.

  Next, a method for attaching the cover 50 to the mountain cup 40 will be described.

  FIG. 2 is a side sectional view of the mountain cup 40 before the cover 50 is attached. FIG. 3 is a side sectional view of the cover 50 before being attached to the mountain cup 40. FIG. 4A is a view showing a state in which the cover 50 is pushed into the mountain cup 40. FIG. 4B is a diagram illustrating a state in which the mountain cup 40 is being deformed by press working. FIG. 5 is a view showing a state in which the cover 50 is attached to the mountain cup 40.

  When the cover 50 shown in FIG. 3 is pushed into the mountain cup 40 shown in FIG. 2, the cover 50 is deformed by its flexibility, so that the mountain cup 40 and the cover 50 are in the state shown in FIG.

  Next, the hole forming end portion 43a and the pinching connection portion 43b are pressed so that the hole forming end portion 43a of the mountain cup 40 approaches the sandwiching connection portion 43b and the pinching connection portion 43b approaches the housing holding portion 42. If it deform | transforms by, after the mountain cup 40 and the cover 50 will be in the state shown in FIG.4 (b), they will finally be in the state shown in FIG.

  Finally, at least two of the cover 50, for example, a portion that contacts the container mounting portion 41 of the mountain cup 40 and a portion that contacts the container mounting portion 41 and the housing holding portion 42 of the mountain cup 40. The place is welded to the mountain cup 40 by being heated.

  Next, a method for manufacturing the aerosol valve 30 will be described.

  The mountain cup 40 and the cover 50 in the state shown in FIG. 5 hold the housing 60 that houses the stem 70, the stem rubber 81, and the spring 82 when the housing holding portion 42 of the mountain cup 40 is crimped. Here, the cover 50 is deformed along with the deformation of the mountain cup 40 due to its flexibility. A pipe 83 is attached to the housing 60. The aerosol valve 30 is manufactured as described above.

  Next, a method for manufacturing the aerosol product 10 will be described.

  The aerosol valve 30 manufactured as described above is attached to the bead part 22 of the container 20 by the container attaching part 41 of the mountain cup 40 being caulked. Here, the cover 50 is deformed along with the deformation of the mountain cup 40 due to its flexibility.

  When the liquid gas and powder are introduced as contents from between the stem hole 40a of the mountain cup 40 and the stem 70, the stem rubber 81 is pushed by the pressure of the introduced liquid gas and powder. As a result, a space is created between the cover 50 and the stem rubber 81.

  Accordingly, the liquid gas and powder introduced from between the stem hole 40a of the mountain cup 40 and the stem 70 are formed between the cover 50 and the stem rubber 81, and the slit 60a of the housing 60. And the container internal space 10a is filled.

  In addition, since the mountain cup 40 sandwiches and fixes the cover 50 in the vicinity of the stem hole 40a, the contents of the aerosol product 10 are filled from the outside to the inside of the aerosol product 10 through the stem hole 40a. In such a case, it does not flow between the mountain cup 40 and the cover 50.

  Finally, a button 90 is attached to the stem 70 of the aerosol valve 30. The aerosol product 10 is manufactured as described above.

  Next, a method for using the aerosol product 10 will be described.

  When the operation unit 91 is pushed down by the user, the button 90 pushes down the stem 70 of the aerosol valve 30 against the spring 82.

  When the stem 70 is pushed down, the stem rubber 81 that is in contact with the stem 70 at a portion that forms the hole 81a is deformed as the stem 70 moves, so that the stem hole 72 is unsealed by the stem rubber 81. .

  When the sealing of the stem hole 72 by the stem rubber 81 is released and the stem hole 72 connects the valve inner space 10 b and the ejection hole 71, the gas filled in the valve inner space 10 b passes through the stem hole 72. It ejects from the ejection hole 71. The gas ejected from the ejection hole 71 is ejected to the outside of the aerosol product 10 through the ejection hole 90 a of the button 90.

  When the gas filled in the valve inner space 10b is ejected from the ejection hole 71 via the stem hole 72, the pressure in the valve inner space 10b is reduced, so that the gas and powder in the liquid state are flown through the flow path 83a of the pipe 83 and In addition to being introduced into the valve inner space 10 b through the main hole 60 c of the housing 60, the gas vaporized in the container inner space 10 a is also introduced into the valve inner space 10 b through the vapor tap hole 60 b of the housing 60. The gas and the powder introduced into the valve inner space 10 b are mixed with each other and ejected from the ejection hole 71 through the stem hole 72. The gas and powder ejected from the ejection hole 71 are ejected to the outside of the aerosol product 10 through the ejection hole 90 a of the button 90.

  In this way, the powder that is the content of the aerosol product 10 is sprayed to the outside of the aerosol product 10 through the spray hole 90 a of the button 90.

  As described above, the aerosol product 10 and the aerosol valve 30 have the mountain cup 40 sandwiching and fixing the cover 50 in the vicinity of the stem hole 40a, so that the contents of the aerosol product 10 are external to the aerosol product 10. Can be prevented from flowing between the mountain cup 40 and the cover 50 when the inside is filled through the stem hole 40a.

  Since the cover 50 made of synthetic resin covers a portion of the mountain cup 40 that becomes the inside of the container 20 when the mountain cup 40 is attached to the container 20, the metal forming the mountain cup 40 is aerosol. Prevents problems caused by the mountain cup 40 coming into contact with the contents of the aerosol product 10, such as being corroded by the contents of the product 10 and the metal forming the mountain cup 40 melting into the contents of the aerosol product 10. be able to.

  Since the aerosol product 10 and the aerosol valve 30 are provided with a seal 50 that seals a gap between the container 20 and the mountain cup 40 when the mountain cup 40 is attached to the container 20, the mountain cup 40 is provided with the aerosol product. The contents of the aerosol product 10 may leak from the inside of the aerosol product 10 to the outside through the gap between the container 20 of the aerosol product 10 and the mountain cup 40, as well as malfunctions caused by touching the contents of the aerosol product 10. This can be prevented by the same cover 50.

  Note that the aerosol product 10 and the aerosol valve 30 may include a seal member that seals the gap between the container 20 and the mountain cup 40 when the mountain cup 40 is attached to the container 20, separately from the cover 50. good.

  The aerosol product 10 and the aerosol valve 30 are configured such that the cover sandwiching portion 43 is covered with the cover 50 when the hole forming end 43a of the mountain cup 40 presses the cover 50 in the direction indicated by the arrow 30a that is the extending direction of the stem 70. Since the hole forming end 43a is pressed between the cover 50 and the stem 70 in a direction perpendicular to the extending direction of the stem 70, the hole forming end 43a is fixed. The part 43a can be kept away from the inside of the aerosol product 10. Therefore, the aerosol product 10 and the aerosol valve 30 are different from the configuration in which the hole forming end portion 43a presses the cover 50 between the cover 50 and the stem 70 in a direction orthogonal to the extending direction of the stem 70. Generation | occurrence | production of the malfunction which arises when the contents of the product 10 touch the hole formation edge part 43a can be suppressed.

  The aerosol product 10 and the aerosol valve 30 may not have a configuration in which the hole forming end 43a presses the cover 50 in the extending direction of the stem 70. For example, as shown in FIGS. 6 and 7, the aerosol product 10 and the aerosol valve 30 are configured so that the hole-forming end portion 43 a extends between the cover 50 and the stem 70 in a direction perpendicular to the extending direction of the stem 70. The pressing structure may be used.

  FIG. 6 is a side sectional view of an aerosol product 10 according to an embodiment of the present invention in an example different from the example shown in FIG. FIG. 7 is a view showing a state where the cover 50 is attached to the mountain cup 40 in the example shown in FIG.

  The mountain cup 40 shown in FIG. 6 and FIG. 7 is fixed with the cover sandwiching portion 43 sandwiching the cover 50 by the hole forming end 43a pressing the cover 50 in a direction orthogonal to the extending direction of the stem 70. doing. That is, in the aerosol product 10 and the aerosol valve 30 shown in FIGS. 6 and 7, the hole forming end 43 a presses the cover 50 between the cover 50 and the stem 70 in a direction orthogonal to the extending direction of the stem 70. As a result, the cover sandwiching portion 43 sandwiches and fixes the cover 50.

  Here, when the cover sandwiching portion 43 is configured as shown in FIG. 6, the surface of the mountain cup 40 that forms the stem hole 40 a is deformed by, for example, the stem rubber 81 with the movement of the stem 70. Sometimes, the stem rubber 81 may come into contact. Therefore, the aerosol product 10 shown in FIG. 6 has a higher possibility that the mountain cup 40 may come into contact with the contents of the aerosol product 10 that has passed through the stem rubber 81 compared to the aerosol product 10 shown in FIG. That is, the aerosol product 10 shown in FIG. 6 has a higher possibility of occurrence of the above-described problems caused by the contents of the aerosol product 10 touching the mountain cup 40 compared to the aerosol product 10 shown in FIG.

  In addition, the surface which forms the hole 40a for stems in the mountain cup 40 is a cut surface, when the mountain cup 40 is manufactured by press work after being cut | disconnected from a metal plate. Therefore, even if the resin film is provided on the surface of the metal plate before the mountain cup 40 is cut, the resin film is not provided on the cut surface. That is, the surface of the mountain cup 40 that forms the stem hole 40a is described above by touching the contents of the aerosol product 10 when the mountain cup 40 is manufactured by pressing after being cut from the metal plate. Problems are likely to occur.

DESCRIPTION OF SYMBOLS 10 Aerosol product 20 Container 30 Aerosol valve 40 Mountain cup 40a Stem hole 43 Cover clamping part 43a Hole formation edge part 50 Cover 52 Seal part 70 Stem

Claims (4)

A stem for injecting the contents of the aerosol product; a mountain cup to be attached to a container for storing the contents; and when the mountain cup is attached to the container, It has a synthetic resin cover that covers the inner part,
The mountain cup has a stem hole which is a through hole into which the stem is inserted.
The aerosol valve according to claim 1, wherein the mountain cup includes a cover sandwiching portion that sandwiches and fixes the cover in the vicinity of the stem hole. The mountain cup includes a hole forming end that is an end forming the stem hole,
The hole forming end portion constitutes a part of the cover sandwiching portion,
2. The aerosol according to claim 1, wherein the cover sandwiching portion sandwiches and fixes the cover when the hole forming end portion presses the cover in the extending direction of the stem. valve.   The aerosol valve according to claim 1, wherein the cover includes a seal portion that seals a gap between the container and the mountain cup when the mountain cup is attached to the container. .   An aerosol product comprising the aerosol valve according to any one of claims 1 to 3, and the container to which the aerosol valve is attached.

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