JP5467604B2 - Inverted aerosol valve and container using the valve - Google Patents

Description

  The present invention relates to an inverted aerosol valve and a container using the valve.

  The inverted aerosol is an aerosol product or the like that is used in cosmetics and the like and injects contents by pushing a stem located on the lower side when inverted. Hereinafter, the container used for the inverted aerosol is referred to as an inverted aerosol container. In addition, a valve structure that is used by being mounted on a can in the container is referred to as an inverted aerosol valve.

  FIG. 11 is a cross-sectional view showing the structure of a conventional inverted aerosol container 200. The inverted aerosol container 200 includes a can 1 and an inverted aerosol valve C. The inverted aerosol valve C includes a mountain cup 1 a, a stem 2, and a housing 3. The housing 3 has a valve function for communicating the stem 2 and the inside of the container. An opening 3 a inside the container of the housing 3 is a stock solution suction port. The mountain cup 1a holds the stem 2 and the housing 3, and is hermetically connected to the can 1 by a so-called clinching process.

  The inverted aerosol container 200 is designed on the assumption that the stem 2 is used with the stem 2 facing downward. The container body 1 is injected with a stock solution 4 that is an example of an inclusion, and a propellant 5 for injecting the stock solution.

  When the stem 2 is pressed while the inverted aerosol container 200 is upright, the stem 2 injects only the gas phase portion of the propellant 5 instead of injecting the stock solution 4. If the gas phase portion of the propellant 5 decreases due to this, the stock solution 4 cannot be used to the end.

  For example, Patent Document 1 discloses an aerosol container including an aerosol valve that has a mechanism that prevents the stem from being pressed down when standing upright.

JP 2003-154295 A

  However, the mechanism described in Patent Document 1 has a complicated structure.

  An object of the present invention is to provide an inverted aerosol valve having a simple configuration that prevents a propellant from being ejected even when a stem is pressed in an upright state, and a container using the valve.

  The inverted aerosol valve according to claim 1 is an inverted type in which an inclusion is injected by a predetermined pressure for injecting an inclusion from the stem by pushing a stem located on the lower side when the valve is inverted. An inverted aerosol valve used by being attached to an aerosol can to form an aerosol container, wherein the valve includes a mountain cup, a stem, a housing, and a gravity motion mechanism. A stem is attached to the first end of the housing, and the housing communicates between the stem and a second end opposite to the stem attachment side of the housing in response to depression of the stem. The stem and the housing are attached to the mountain cup, and the mountain cup seals the aerosol can. The gravity motion mechanism portion includes a tube, a stopper, and a sealing member, and the tube has a first opening at a second end of the housing. Is connected to the container body, protrudes inward of the container body, and has a bottom surface having a second opening having a circular diameter smaller than the inner diameter of the tube on the protruding side, and the stopper Is provided with the sealing member having a diameter smaller than that of the second opening and in the vicinity of the top portion, the diameter of the stopper being larger than that of the second opening. It is possible to move across the second opening in a range up to a portion that is the same as the second opening, and further, the stopper passes one or more inclusions through a surface that is wider than the range. And the sealing member is arranged in the upright position of the container when the container is upright. When the opening is sealed and attached to an aerosol can to form a container, and when the stem is pushed down with the container upright, the stopper and the sealing member are at least at the predetermined pressure. It is characterized by having a weight sufficient to keep the sealed state.

  The inverted aerosol valve according to claim 2 is the inverted aerosol valve according to claim 1, wherein the sealing member has a third opening that fits in an attachment position to the stopper, and at least the The stopper has a connecting portion for connecting the sealing member and the stopper at the attachment position.

  The inverted aerosol valve according to claim 3 is the inverted aerosol valve according to claim 2, wherein the stopper is connected to the attachment position from a pair of surfaces of the sealing member at the attachment position. It has the projection part of this, The said projection part locks the said sealing member, It is characterized by the above-mentioned.

  The inverted aerosol valve according to claim 4 is the inverted aerosol valve according to claim 2, wherein the connection portion includes a portion in which the stopper is threaded to the attachment position. 3 opening has the part screwed together in the said threaded part, It is characterized by the above-mentioned.

  The inverted aerosol valve according to claim 5 is the inverted aerosol valve according to claim 1, wherein the stopper has a shape in which an upper portion is removed from a portion having a smaller diameter than the second opening. It has a connection part for connecting mutually to the bottom face of the said sealing member, and the upper surface of the said stopper, It is characterized by the above-mentioned.

  An inverted aerosol valve according to a sixth aspect is the inverted aerosol valve according to the fourth or fifth aspect, wherein a rubber packing is provided on the bottom surface of the sealing member.

  The inverted aerosol valve according to claim 7 is the inverted aerosol valve according to any one of claims 1 to 6, wherein at least the stopper of the stopper is located inside the container. A certain part is a cavity, and a spherical weight is provided in the cavity.

  An inverted aerosol container according to claim 8 is formed by attaching the inverted aerosol valve according to any one of claims 1 to 7 to an aerosol can.

  The inverted aerosol valve according to claim 1 is advantageous in that the second opening can be reliably sealed by the weight of the stopper and the sealing member when the sealing member is upright.

  Further, when the valve is inverted, the stopper is fitted into the second opening, and the inclusion can be passed from the inner side of the container to the stem side through a plurality of grooves provided on the surface in advance. Thus, since it is not injected at the time of erecting but injected only at the time of inversion, it also has an effect of preventing misuse.

  The valve has an effect that the vertical height below the second opening can be extremely shortened, for example, as compared to the case where the stopper has a conical shape, for example, in the case of a cylindrical shape.

  For example, when the shape of the stopper is a cylindrical shape, it is necessary to increase the diameter of the column below the second opening in order to shorten the vertical height. Further, in order to allow the stopper to move up and down within a certain range across the second opening by cooperating with the sealing member, the stopper has a smaller diameter than the second opening on the lower side of the sealing member, and A cylindrical portion having a length for moving up and down within the certain range and a cylindrical portion having a diameter larger than that of the second opening connected to the cylindrical portion are required.

  The inverted aerosol valve according to claim 1, wherein the stopper has a conical shape, so that it is not necessary to form a part having a large diameter change, such as a part connecting the two cylindrical parts. It is possible to simplify the process and to reduce the cost.

  The inverted aerosol valve according to claim 2 is the valve according to claim 1, wherein the sealing member is provided with the third opening and connected by the connecting portion. By adopting this configuration, there is an effect that it is easy to attach the stopper so that the second opening of the pipe is sandwiched between the sealing member and the stopper.

  As the connecting portion, there are a case where a projection is used as in the valve according to claim 3 and a case where a screw is used as in the valve according to claim 4. When the protrusion is used, there is an effect that it is not necessary to process the third opening of the sealing member and the configuration can be simplified. When a screw is used, there is an effect that the sealing member can be securely attached.

  The inverted aerosol valve according to claim 5 is the valve according to claim 1, wherein the sealing member sandwiches the second opening of the tube and has a stopper by using a two-part configuration of the stopper and the sealing member. There is an effect that it becomes easy to attach to.

  The inverted aerosol valve according to claim 6 is the valve according to claim 4 or 5, wherein the sealing member can provide more reliable sealing by providing a rubber packing on the bottom surface of the sealing member. There is an effect that.

  8. The inverted aerosol valve according to claim 7, wherein when the container is tilted beyond the position where the side surface of the stopper is horizontal due to the shape of the conical stopper, the spherical weight is located on the bottom side of the stopper. To the sealing member side. There is an effect that the position of the center of gravity of the stopper is changed to a position near the sealing member by the operation of the weight, and the stopper can be quickly moved to a position where the second opening is opened.

  The inverted aerosol container according to claim 8 has an effect that it is possible to prevent useless injection of the propellant, although a valve having a very simple configuration is used. Further, the use of the valve according to claim 7 has an effect that the stopper can keep the second opening sealed or substantially sealed until just before using the container.

It is sectional drawing which shows the container provided with the valve | bulb for inverted aerosols. (A) is a side view which shows the structure of a gravity operation | movement mechanism part, and is the figure represented by the cross section about some components for convenience, (b) is a bottom view of a stopper. It is a side view which shows the state of a gravity operation | movement mechanism part when a container is completely inverted, and is the figure which represented in cross section about some components for convenience. It is a figure which shows the 1st structural example of a stopper and a sealing member, (a) is sectional drawing, (b) is a side view. It is a side view which shows the 2nd structural example of a stopper and a sealing member. It is a side view which shows the 3rd structural example of a stopper and a sealing member. It is sectional drawing which shows the modification of a structure of a stopper. It is sectional drawing for demonstrating operation | movement of the stopper of the structure shown in FIG. It is sectional drawing for demonstrating operation | movement of the stopper of the structure shown in FIG. It is sectional drawing for demonstrating operation | movement of the stopper of the structure shown in FIG. It is sectional drawing which shows the structure of the conventional container for inverted aerosols.

  FIG. 1 is a cross-sectional view showing an entire container 100 used for an inverted aerosol. For convenience of explanation, a detailed cross section of the gravity motion mechanism unit 6 is omitted. The same components as those of the conventional container 200 described with reference to FIG. 11 are denoted by the same reference numerals. The inverted aerosol valve container 100 pushes the stem 2 located on the lower side when it is inverted, so that the inclusion can be ejected by a predetermined pressure or less pressure to inject the inclusion from the stem 2. In order to form a container of an inverted aerosol to be sprayed, a can 1 and an inverted aerosol valve A are provided.

  The inverted aerosol valve A includes a mountain cup 1 a, a stem 2, a housing 3, and a gravity operation mechanism 6, and the stem 2 is attached to the first end of the housing 3. The configuration of the gravity operation mechanism unit 6 will be described in detail later with reference to FIG. The stem 2 and the housing 3 are attached to the mountain cup 1a, and the mountain cup 1a is airtightly connected between the upper opening portion of the aerosol can 1.

  The housing 3 has a spring 3b, and always biases the stem 2 upward. The stem 2 includes a discharge port (vertical hole) 2a extending in the vertical direction and a stem orifice (horizontal hole) 2b extending laterally from the discharge port 2a in the drawing. The stem orifice 2 b is sealed by a packing 3 c that is an elastic body of the housing 3 when the stem 2 is not depressed. The housing 3 is provided with a path 3d that connects the stem orifice 2b and the opening 3a when the stem 2 is pressed down below the packing 3c.

  The can 1 has a cylindrical shape, but is not particularly limited as long as it can withstand the enclosing of the propellant 5 for injecting the stock solution 4. In addition to the stock solution 4, the inclusions include foams, gels, granules, and the like that can be ejected from the stem 2 by the pressure of the propellant 5.

  FIG. 2A is a cross-sectional view of the tube 6d for explaining the configuration of the gravity motion mechanism section 6, and FIG. 2B is a bottom view of the stopper. The gravity operation mechanism unit 6 includes a tube 6d, a stopper 6a, and a sealing member 6b. A pipe 6 d is connected to the opening 3 a facing the inside of the container body of the housing 3. The tube 6d protrudes inward of the container body 1, and a bottom surface 6e having a circular opening 6f having a smaller diameter than the inner diameter of the tube 6d is provided on the protruding side. The stopper 6a has a conical shape, and includes the sealing member 6b having an outer diameter larger than that of the opening 6f in a portion having a diameter smaller than that of the opening 6f near the top. The stopper 6a can move up and down in the figure across the opening 6f in a range α from the sealing member 6b to a portion where the diameter of the stopper 6a is the same as the opening 6f. Furthermore, the stopper 6a is provided with one or more, preferably a plurality of grooves 6c as shown on the bottom surface shown in FIG. 2 (b), through which the stock solution 4 is passed over a surface in a range wider than the range α. The sealing member 6b seals the opening 6f including the groove 6c when the container 100 is erected. The stopper 6a and the sealing member 6b are in a sealed state against the pressure of the propellant 5 to inject the inclusion from the stem 2 when the stem 2 is pressed when the container 100 is upright. It has enough weight to keep. The material of the stopper 6a is not particularly limited as long as it has a size that exhibits a desired effect and has a weight sufficient to maintain a hermetically sealed state. For example, it is preferable to use metal, plastic, or the like.

  In the inverted aerosol valve A configured as described above, the sealing member 6b reliably seals the opening 6f by the weight of the stopper 6a and the sealing member 6b when the valve is upright. When the container 100 is formed by being attached to the can 1, useless injection of the gas phase portion of the propellant 5 when the stem 2 is accidentally pushed is prevented.

  FIG. 3 is a diagram illustrating a state of the gravity motion mechanism unit 6 when the container 100 is completely inverted. For convenience of explanation, the pipe 6d is shown in a sectional view. The stopper 6a is fitted into the opening 6f, and the stock solution 4 passes from the inside of the container to the stem side as shown by the arrow through a plurality of grooves 6c provided on the surface in advance.

  In the gravity motion mechanism 6 having the above-described configuration, the height of the lower side of the opening 6f can be extremely shortened, for example, compared to the case where the stopper 6a is formed in a conical shape, for example. .

  For comparison, consider the case where the stopper 6a has a cylindrical shape. In this case, in order to shorten the vertical height, it is necessary to increase the diameter of the cylinder below the opening 6f. Further, in order to allow the stopper 6a to move up and down within a certain range with the opening 6f sandwiched in cooperation with the sealing member 6b, the stopper 6a has a smaller diameter than the opening 6f below the sealing member 6b. And the cylindrical part which has the length for moving up and down in the said certain range, and the cylindrical part larger diameter than the opening 6f connected to this cylindrical part are required.

  Since the gravity motion mechanism 6 has a stopper 6a in a conical shape, there is no need to form a portion having a large diameter change, such as a portion connecting the two cylindrical portions, and the structure can be simplified. Thus, the cost can be reduced. In other words, the aerosol container 100 including the inverted aerosol valve A having the gravity operation mechanism unit 6 and the can 1 has a very simple configuration, and can perform a wasteful injection of the propellant 5. It has the advantage that it can be prevented.

  Hereinafter, various embodiments of the stopper 6a and the sealing member 6b will be described with reference to FIGS. 4 to 8, but are not limited to the shapes of these embodiments.

  4 to 6 are views showing first to third configuration examples of the stopper and the sealing member provided in the gravity operation mechanism unit 6. 4 and 5, the sealing member 6b has openings 6g and 6k that fit into the attachment position 6h of the stopper 6a. By adopting this configuration, it becomes easy to attach the sealing member 6b to the stopper 6a across the opening 6f of the tube 6d.

  In the embodiment shown in FIG. 4, the stopper 6a has a protrusion 6i as a connecting portion for connecting the stopper 6a and the sealing member 6b at the attachment position 6h. As shown in FIG. 4A, the vertical width L1 of the protrusion 6i is the same as the thickness L2 of the sealing member 6b. The sealing member 6b has an opening 6g. The upper and lower dimensions L3 and L5 of the opening 6g are the same as the corresponding dimensions L4 and L6 of the stopper 6a. As shown in FIG. 4B, the sealing member 6b is locked by the protrusion 6i. By using the projection 6i, it is not necessary to thread the opening 6g of the sealing member 6b. The sealing member 6b is preferably an elastic body such as hard rubber.

  In the embodiment shown in FIG. 5, the stopper 6a has a threaded portion 6j at the mounting position 6h. The sealing member 6b has an opening 6k that is threaded so as to be screwed into the threaded portion 6j. The sealing member 6b is securely attached to the stopper 6a by using a screw.

  A rubber packing 61 is preferably provided on the bottom surface of the sealing member 6b in order to improve sealing performance. Further, instead of the rubber packing 61, it may be provided only on the bottom surface 6e of the tube 6d. In order to further improve the sealing performance, rubber packing may be provided on the rubber packing 6l and the bottom surface 6e of the tube 6d.

  The stopper 6m of the embodiment shown in FIG. 6 has a shape with an isosceles trapezoidal cross section obtained by removing the upper portion from a portion having a smaller diameter than the opening 6f near the top. Connection portions 6o and 6p for connecting each other are provided on the bottom surface of the sealing member 6n and the top surface of the stopper 6m. The connecting portion is, for example, a screw 6o and a screw hole 6p. By adopting this configuration, it becomes easy to attach the sealing member 6b to the stopper 6a so as to sandwich the opening 6f of the tube 6d.

  The shape of the sealing member 6n is not limited to the illustrated shape, and the upper conical portion may be a cone or a cylinder having a bottom surface having the same diameter as the outer diameter. Accordingly, the height can be increased without changing the height, and the sealing effect can be enhanced.

  Similarly to the sealing member 6l shown in FIG. 5, a rubber packing 6q is provided on the bottom surface of the sealing member 6n in order to improve the sealing performance. The rubber packing may be further provided on the bottom surface 6e of the tube 6d. Or you may provide only in the bottom face 6e of the pipe | tube 6d instead of the said rubber packing 6q.

  FIG. 7 is a cross-sectional view showing a modified example of the configuration of the stopper. The stopper of the embodiment shown in FIG. 7 is a stopper of the stopper 6a or 6m shown in FIGS. 1 to 6, and is provided with a cavity 6r at least in a portion inside the container than the sealing member 6b. It is what. A spherical weight 6s is provided in the cavity 6r. The material of the spherical weight 6s is not particularly limited. For example, by using a metal having a high specific gravity for the weight 6s, not only a metal but also a plastic that can be easily processed can be used as the material of the stopper 6a. . Moreover, it has the advantage that it can respond to the pressure of the propellant to inject | pour which can be set for every container, or the difference of the required sealing degree only by changing the weight 6s.

  The means for putting the spherical weight 6s into the stopper 6a or 6m having the cavity 6r is not particularly limited. For example, a method of inserting the spherical weight 6s in advance when the stopper 6a or 6m having the cavity 6r is manufactured. Alternatively, a method of performing surface processing after manufacturing the stopper 6a or 6m having the cavity 6r and inserting the spherical weight 6s and sealing it can be exemplified.

  8 to 10 are cross-sectional views for explaining the operation of the stopper having the configuration shown in FIG. When the container in the state of FIG. 8 or FIG. 9 is tilted to the state of FIG. 10 and the top of the stopper 6a or 6m is tilted so that its top part is directed downward beyond the position where the side surface of the stopper 6a or 6m is horizontal, Due to the shape of the conical stopper, the spherical weight 6s moves from the bottom side of the stopper to the sealing member 6b or 6n side. By the operation of the weight 6s, the position of the center of gravity of the stopper changes to a position near the sealing member 6b or 6n, and the stopper 6a or 6m quickly moves to a position where the opening 6f is opened. By adopting this configuration, the sealing member 6b can keep the opening 6f sealed or substantially sealed until just before using the container 100.

  INDUSTRIAL APPLICABILITY The present invention can be used to form an inverted aerosol container that is used by spraying a stock solution such as cosmetics and insecticides.

DESCRIPTION OF SYMBOLS 1 Aerosol container main body 2 Stem 3, 6f, 6g, 6k Opening 4 Stock solution 5 Propellant 6 Gravity action mechanism part 6a Stopper 6b Sealing member 6c Groove 6d Pipe 6e Bottom face 6r Cavity 6s Weight

Claims (8)

Aerosol can to form an inverted aerosol container that injects inclusions with a predetermined pressure to inject inclusions from the stem by pushing the stem located below when inverted Inverted aerosol valve used by attaching to
The valve includes a mountain cup, a stem, a housing, and a gravity motion mechanism;
A stem is attached to the first end of the housing, and the housing communicates between the stem and a second end opposite to the stem attachment side of the housing in response to depression of the stem. ,
The stem and the housing are attached to the mountain cup, and the mountain cup can be attached to the can so as to hermetically seal the aerosol can.
The gravity operation mechanism unit includes a tube, a stopper, and a sealing member,
The tube is connected to the first opening at the second end of the housing and protrudes inward of the container main body, and on the protruding side, a circular second second having a smaller diameter than the inner diameter of the tube. A bottom surface having an opening;
The stopper has a conical shape and includes the sealing member having a diameter smaller than that of the second opening and in the vicinity of the top portion. The sealing member has a diameter larger than that of the second opening. Can be moved across the second opening in a range up to the same portion as the second opening, and the stopper allows the inclusion to pass through the surface in a range wider than the range. With one or more grooves,
The sealing member is adapted to seal the second opening when the container is upright;
When the container is formed by attaching it to an aerosol can, and when the stem is pushed down with the container upright, the stopper and the sealing member only keep the sealed state against at least the predetermined pressure. Have weight,
An inverted aerosol valve characterized by that. The sealing member has a third opening that fits into the position of attachment to the stopper;
At least the stopper has a connecting portion for connecting the sealing member and the stopper at the attachment position.
The inverted aerosol valve according to claim 1. As the connection part, the stopper has a pair of protrusions from the surface of the width of the sealing member at the attachment position,
The protrusion is adapted to lock the sealing member.
The inverted aerosol valve according to claim 2. As the connection portion, the stopper has a portion threaded to the attachment position,
The third opening has a portion that engages with the threaded portion.
The inverted aerosol container according to claim 2. The stopper has a shape in which an upper portion is removed from a portion having a smaller diameter than the second opening;
The bottom surface of the sealing member and the top surface of the stopper have a connection portion for connecting each other,
The inverted aerosol valve according to claim 1. A rubber packing is provided on the bottom surface of the sealing member,
The inverted aerosol valve according to claim 4 or 5, wherein: At least a portion of the stopper located inside the container with respect to the sealing member is a cavity, and a spherical weight is provided in the cavity.
The inverted aerosol valve according to any one of claims 1 to 6, wherein: It is formed by attaching the inverted aerosol valve according to any one of claims 1 to 7 to an aerosol can.
An inverted aerosol container characterized by that.

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