JP2004075134A - Tubular vessel for fluid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tubular vessel for fluid, which has excellent durability and can surely prevent back-flow of air with a simple configuration. <P>SOLUTION: A valve mechanism 2 comprises a valve member 3 and a valve seat member 4. The valve member 3 comprises a base part 34, a valve part 32, and a connection part 33 to connect the base part 34 to the valve part 32. A substantially cruciform groove part 35 is formed in the valve part 32 of the valve member 3. The valve seat member 4 comprises an engagement part 43 to be engaged with the base part 34 in the valve member 3 and a valve seat part 41 which is disposed at the position separate from the engagement part 43 by the distance equal to the size of the connection part 33 in the valve member 3 and abutted on the valve part 32 in the valve member 2. An opening part 44 for passing the fluid is formed in a vicinity of the engagement part 43, and the opening part 44 is connected to a fluid discharge port via a distribution hole 42. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fluid tube-shaped container that stores a fluid therein.
[0002]
[Prior art]
In this type of tube type container, in recent years, in place of a tube made of a material obtained by laminating a metal or aluminum foil, a structure in which a synthetic resin alone or a synthetic resin and aluminum are laminated (in this specification, Are collectively referred to as “made of synthetic resin”).
[0003]
Since such a synthetic resin tube has an elastic restoring force, in a tube type container using a synthetic resin tube, a pressing force is applied to the tube to discharge a fluid, and then the pressing force is released. Then, there occurs a problem that the air flows backward from the opening for discharging the fluid toward the storage portion of the fluid due to the elastic restoring force of the tube, thereby deteriorating the quality of the fluid stored therein.
[0004]
Therefore, a tube-shaped container has been proposed in which a flat valve body is attached to an opening for discharging a fluid in such a tube-shaped container, and the opening is closed by the valve body when the elasticity of the tube is restored. (For example, Japanese Patent Application Laid-Open No. Hei 7-112747, Japanese Patent Application Laid-Open No. Hei 10-157751, Japanese Utility Model Application Laid-Open No. 59-26748, etc.).
[0005]
[Problems to be solved by the invention]
In such a conventional tube-shaped container provided with a flat plate-shaped valve element, when the tube performs a gentle elastic restoring operation, the valve element does not close the opening of the tube-type container, and the fluid does not flow. There is a case where air flows backward into the storage unit.
[0006]
Further, there is a problem that durability is low in the conventional tube-shaped container provided with a flat plate-shaped valve element.
[0007]
The present invention has been made in order to solve the above problems, and provides a fluid-type tube-shaped container that has a simple configuration, can reliably prevent backflow of air, and has excellent durability. The purpose is to do.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is a fluid tube type container having a tube-shaped container main body having a fluid discharge port formed at one end thereof, and a valve mechanism disposed at the discharge port. The valve mechanism is made of an elastic body, a base member, a valve portion, a valve member having a connecting portion connecting the base portion and the valve portion, an engaging portion engaging the base portion, A valve seat member having a valve seat portion that can be brought into contact with the valve portion, the valve seat member being disposed at a position separated from the engagement portion by a distance corresponding to the size of the connecting portion, and the tube-shaped container main body. The valve is separated from the valve seat by the elasticity of the connecting portion when pressure is applied to the fluid inside the valve.
[0009]
According to a second aspect of the present invention, in the first aspect of the invention, a male screw portion is formed on an outer peripheral portion of an opening in the tube-shaped container main body, and an inner peripheral portion of the valve seat member is provided. Is formed with a female screw portion that can be screwed with the male screw portion.
[0010]
According to a third aspect of the present invention, in the first aspect of the invention, a flange portion is formed at an opening of the tube-shaped container body, and an outer peripheral portion of the valve seat member is provided with the flange portion. And a concave portion that can be engaged therewith.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a tube type container of a fluid according to a first embodiment of the present invention.
[0012]
The tube type container of the fluid is used as a container of a gel generally called a gel, such as a hair gel or a cleansing gel used in the field of beauty, or a creamy material such as a nutritional cream or a massage cream. What is used. The tube-shaped container may be used as a container for general chemicals, solvents, foods, and the like. In this specification, the term "fluid" includes ordinary liquids, high-viscosity liquids, semi-fluids, and gels and creams in which a sol is solidified in a jelly state.
[0013]
This fluid tube-shaped container includes a container body 1 and a valve mechanism 2.
[0014]
The container body 1 includes a tube-shaped fluid storage portion 11 for storing a fluid therein, a fluid discharge port 12 formed at one end of the fluid storage portion 11, and a discharge port 12. And a male screw part 14 formed outside the discharge port 12. The container body 1 has a configuration in which a synthetic resin alone or a laminate of a synthetic resin and aluminum is provided, and has an elastic restoring force for returning to an original shape when the pressing force applied thereto is released.
[0015]
Next, the configuration of the valve mechanism 2 will be described. 2 and 3 are longitudinal sectional views showing the valve mechanism 2. FIG. FIG. 4 is an explanatory view showing the valve member 3 in the valve mechanism 2. 4A shows a plane of the valve member 3, and FIG. 4B shows a side surface of the valve member 3, respectively.
[0016]
The valve mechanism 2 includes a valve member 3 and a valve seat member 4.
[0017]
The valve member 3 has a base portion 34, a valve portion 32, and a connecting portion 33 connecting the base portion 34 and the valve portion 32. A substantially cross-shaped groove 35 is formed in the valve portion 32 of the valve member 3. The valve member 3 is made of an elastic body. As a material of the valve member 3, for example, a resin such as polyethylene or polypropylene, a synthetic rubber such as silicone rubber, or a mixture thereof can be used.
[0018]
On the other hand, the valve seat member 4 is disposed at an engagement portion 43 that engages with the base portion 34 of the valve member 3 and at a position separated from the engagement portion 43 by a distance corresponding to the size of the connecting portion 33 of the valve member 3. The valve member 3 has a valve seat portion 41 that can contact the valve portion 32. An opening 44 for passing the fluid is formed in the vicinity of the engaging portion 43, and the opening 44 and the discharge port of the fluid formed by the valve seat 41 are connected through the flow hole 42. Have been.
[0019]
On the inner peripheral portion of the valve seat member 4, a female screw portion 45 which can be screwed with the male screw portion 14 formed outside the discharge port 12 of the container body 1 is formed. Therefore, the valve seat member 4 is detachable from the discharge port 12 in the container body 1 by the action of the male screw portion 14 and the female screw portion 45.
[0020]
As described above, the engagement portion 43 of the valve seat member 4 and the valve seat portion 41 are arranged at positions separated by a distance corresponding to the size of the connecting portion 33 of the valve member 3. That is, the flow hole 42 of the valve seat member 4 has a size corresponding to the size of the connecting portion 33 of the valve member 3. For this reason, in a state where pressure is not applied to the fluid in the fluid storage part 11 in the tubular container body 1, as shown in FIG. Are in contact with each other.
[0021]
In this state, due to the elasticity of the connecting portion 33 of the valve member 3, the valve seat portion 41 of the valve seat member 4 and the valve portion 32 of the valve member 3 contact each other with a constant contact pressure. For this reason, the discharge port of the fluid formed by the valve seat 41 in the valve member 3 is securely closed.
[0022]
In this state, when pressure is applied to the fluid in the fluid reservoir 11 in the tube-shaped container main body 1, the elasticity of the connecting portion 33 of the valve member 3 causes the valve member 3 to move as shown in FIG. 3 is separated from the valve seat 41 of the valve seat member 4. For this reason, the discharge port of the fluid formed by the valve seat 41 in the valve member 3 is opened, and the fluid to which pressure is applied is discharged from this discharge port.
[0023]
At this time, the distance between the valve part 32 of the valve member 3 and the valve seat part 41 of the valve seat member 4 is determined by the magnitude of the pressure applied to the fluid in the fluid storage part 11 of the tubular container body 1. Proportional. Therefore, the amount of movement of the valve section 32 changes according to the pressing force on the fluid storage section 11, that is, the pressure applied to the valve mechanism 2, and the discharge flow rate of the fluid can be arbitrarily changed. . Therefore, when a normal liquid is used as the fluid, by applying a small pressure to the liquid in the fluid reservoir 11, it is possible to discharge the liquid one by one.
[0024]
On the other hand, when the pressing force on the fluid storage unit 11 is released after the required amount of the fluid is discharged, the fluid in the fluid storage unit 11 is decompressed by the elastic restoring force of the container body 1, and the opening portion is opened. Air tends to flow backward from 12 toward the fluid reservoir 11.
[0025]
However, in this tube-shaped container, if the application of the pressure to the fluid in the fluid reservoir 11 in the tube-shaped container main body 1 is released, the elasticity of the connecting portion 33 of the valve member 3 causes the valve member 3 to move to FIG. As shown, the valve seat portion 41 of the valve seat member 4 and the valve portion 32 of the valve member 3 abut again, and the discharge port of the fluid formed by the valve seat portion 41 of the valve member 3 is closed again.
[0026]
In the embodiment shown in FIGS. 1 to 4, the valve seat member 4 is connected to the container body 1 by the action of the male screw portion 14 formed on the container body 1 and the female screw portion 45 formed on the valve seat member 4. 1 is mounted outside the discharge port 12. However, the valve seat member 4 may be mounted inside the discharge port 12 in the container body 1.
[0027]
FIG. 5 is a longitudinal sectional view showing a main part of a tube type container of a fluid according to such a modification.
[0028]
In this tube type container, a concave portion which can be engaged with the flange portion 13 of the container body 1 is formed on the outer peripheral portion of the valve seat member 4. Therefore, it is possible to mount the valve seat member 4 inside the discharge port 12 of the container body 1. In the case where such a configuration is adopted, it is possible to attach another lid body using the male screw portion 14 in the container body 1. When such a configuration is adopted, the valve mechanism 2 can be mounted on the general container body 1.
[0029]
Next, the configuration of a tube type container for a fluid according to another embodiment of the present invention will be described. FIG. 6 is an exploded longitudinal sectional view showing a fluid-type tube-shaped container according to a second embodiment of the present invention.
[0030]
This fluid tube-shaped container includes the same container body 1, valve mechanism 2, and lid member 5 as in the first embodiment described above.
[0031]
The lid member 5 has a base 51 provided with a fluid discharge port 54 at the center thereof, and a closing portion 55 capable of closing the discharge port, and has an upper lid 52 which can be hinged with respect to the base 51. . In the lid member 5, the female screw portion 53 is screwed with the male screw portion 14 of the container body 1, so that the discharge port 12 of the container body 1 and the discharge port 54 of the lid member 5 communicate with each other. ing. Then, by causing the upper lid 52 to swing with respect to the base 51, the discharge port 54 of the lid member 5 can be opened and closed.
[0032]
Next, the configuration of the valve mechanism 2 according to the second embodiment will be described. 7 is an explanatory view showing the valve member 3 constituting the valve mechanism 2, FIG. 8 is an explanatory view showing the valve seat member 4 constituting the valve mechanism 2, and FIG. 9 is a valve mechanism according to the second embodiment. FIG. 4 is an explanatory view showing a fluid discharge operation by No. 2; FIG. 7A shows a plane of the valve member 3, and FIG. 7B shows a side surface of the valve member 3. FIG. 8A shows a longitudinal section of the valve seat member 4, and FIG. 8B shows a bottom surface of the valve seat member 4.
[0033]
As shown in FIG. 7, the valve member 3 has a base 37, a valve 38, and a tapered connecting portion 36 connecting the base 37 and the valve 38. The valve member 3 is made of an elastic body, like the valve member 3 according to the first embodiment. As a material of the valve member 3, for example, a resin such as polyethylene or polypropylene, a synthetic rubber such as silicone rubber, or a mixture thereof can be used.
[0034]
On the other hand, as shown in FIG. 8, the valve seat member 4 includes a cylindrical portion 47, an engaging portion 48 that engages with the base 37 of the valve member 3, and a connecting portion of the valve member 3 from the engaging portion 48. A valve seat portion 46 is disposed at a position separated by a distance corresponding to the size of the valve member 36 and can contact the valve portion 38 of the valve member 3. An opening 49 for passing the fluid is formed between the engaging portion 48 and the tubular portion 47, and the opening 49 is formed between the engaging portion 48 and the fluid outlet formed by the upper end of the tubular member 47. Are linked.
[0035]
A concave portion 50 that can be engaged with the flange portion 13 of the container body 1 is formed on an outer peripheral portion of the cylindrical portion 47. Therefore, it is possible to mount the valve seat member 4 inside the discharge port 12 of the container body 1.
[0036]
As described above, the engaging portion 48 and the valve seat portion 46 of the valve seat member 4 are arranged at positions separated by a distance corresponding to the size of the connecting portion 36 of the valve member 3. Therefore, in a state where pressure is not applied to the fluid in the fluid reservoir 11 in the tubular container body 1, as shown in FIG. 9A, the valve seat 46 of the valve seat member 4 The valve portion 38 of the valve member 3 is in contact with each other.
[0037]
In this state, due to the elasticity of the connecting portion 36 of the valve member 3, the valve seat portion 46 of the valve seat member 4 and the valve portion 38 of the valve member 3 are in contact with each other with a constant contact pressure. For this reason, the opening 49 in the valve member 3 is securely closed.
[0038]
In this state, when pressure is applied to the fluid in the fluid reservoir 11 in the tube-shaped container body 1, due to the elasticity of the connecting portion 36 of the valve member 3, as shown in FIG. The valve portion 38 of the valve member 3 is separated from the valve seat portion 46 of the valve seat member 4. Therefore, the opening 49 in the valve seat member 4 is opened, and the fluid to which pressure is applied is discharged from the opening 49.
[0039]
At this time, the distance between the valve portion 38 of the valve member 3 and the valve seat portion 46 of the valve seat member 4 is determined by the magnitude of the pressure applied to the fluid in the fluid storage portion 11 of the tubular container body 1. Proportional. Therefore, the amount of movement of the valve section 38 changes according to the pressing force on the fluid storage section 11, that is, the pressure applied to the valve mechanism 2, and the discharge flow rate of the fluid can be arbitrarily changed. . Therefore, when a normal liquid is used as the fluid, by applying a small pressure to the liquid in the fluid reservoir 11, it is possible to discharge the liquid one by one.
[0040]
On the other hand, when the pressing force on the fluid storage unit 11 is released after the required amount of the fluid is discharged, the fluid in the fluid storage unit 11 is decompressed by the elastic restoring force of the container body 1, and the opening portion is opened. Air tends to flow backward from 12 toward the fluid reservoir 11.
[0041]
However, in this tube-shaped container, if the application of the pressure to the fluid in the fluid reservoir 11 in the tube-shaped container main body 1 is released, the elasticity of the connecting portion 36 of the valve member 3 causes the elasticity of the connecting portion 36 in FIG. As shown in a), the valve seat portion 46 of the valve seat member 4 comes into contact with the valve portion 38 of the valve member 3 again, and the opening 49 of the valve seat member 4 is closed again.
[0042]
【The invention's effect】
According to the first aspect of the invention, when pressure is applied to the fluid in the tube-shaped container body, the valve portion is separated from the valve seat portion by the elasticity of the connection portion of the valve member. Therefore, it is possible to reliably prevent the backflow of air while having a simple configuration, and the durability thereof is also excellent.
[0043]
According to the invention described in claim 2, a male screw portion is formed on the outer peripheral portion of the opening in the tube-shaped container main body, and the male screw portion can be screwed on the inner peripheral portion of the valve seat member. Since the female screw portion is formed, the valve mechanism can be easily attached to and detached from the tubular container.
[0044]
According to the third aspect of the present invention, the opening in the tube-shaped container main body is formed with a flange, and the outer periphery of the valve seat member is formed with a recess that can be engaged with the flange. Therefore, the valve mechanism can be easily attached to and detached from the tubular container.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a tube type container of a fluid according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a valve mechanism 2.
FIG. 3 is a longitudinal sectional view showing a valve mechanism 2.
FIG. 4 is an explanatory view showing a valve member 3 in the valve mechanism 2.
FIG. 5 is an explanatory view showing a valve member 3 in the valve mechanism 2.
FIG. 6 is an exploded longitudinal sectional view of a fluid-type tube-shaped container according to a second embodiment of the present invention.
FIG. 7 is an explanatory view showing a valve member 3 constituting the valve mechanism 2.
FIG. 8 is an explanatory view showing a valve seat member 4 constituting the valve mechanism 2.
FIG. 9 is an explanatory diagram showing a discharge operation of a fluid by a valve mechanism 2 according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container main body 2 Valve mechanism 3 Valve member 4 Valve seat member 5 Lid member 11 Fluid storage part 12 Discharge port 13 Flange part 14 Male screw part 32 Valve part 33 Connection part 34 Base 35 Groove 36 Connection part 37 Base 38 Valve part 41 Valve seat portion 42 Flowing hole 43 Engaging portion 44 Opening portion 45 Female screw portion 46 Valve seat portion 47 Cylindrical portion 48 Engaging portion 49 Opening portion 50 Depression 51 Base 52 Top lid 53 Female screw portion 54 Discharge port 55 Closing portion

Claims (3)

A tube-shaped container body having a fluid discharge port formed at one end thereof, and a fluid tube-type container having a valve mechanism disposed at the discharge port,
The valve mechanism includes:
A valve member composed of an elastic body, having a base portion, a valve portion, and a connecting portion connecting the base portion and the valve portion,
A valve seat having an engagement portion that engages with the base portion, and a valve seat portion that can be in contact with the valve portion and that is disposed at a position separated from the engagement portion by a distance corresponding to the size of the connection portion; And a member,
A tube type container for a fluid, wherein the valve portion is separated from the valve seat portion by elasticity of the connection portion when pressure is applied to the fluid in the tube type container body. The fluid tube type container according to claim 1,
An external thread portion is formed on an outer peripheral portion of the opening in the tube-shaped container body,
A fluid tube-shaped container in which an internal thread portion that can be screwed with the external thread portion is formed on an inner peripheral portion of the valve seat member. The fluid tube type container according to claim 1,
A flange portion is formed at the opening in the tube-shaped container body,
A fluid tube-shaped container in which a concave portion engageable with the flange portion is formed on an outer peripheral portion of the valve seat member.

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