JP3993487B2 - Fluid tube type container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fluid tube-type container in which a fluid is stored.
[0002]
[Prior art]
In this type of tube-type container, instead of a conventional tube made of a laminated material of metal or aluminum foil, a synthetic resin alone or a structure in which a synthetic resin and aluminum are laminated (in this specification, these Are collectively referred to as “made of synthetic resin”).
[0003]
Since such a synthetic resin tube has elastic restoring force, in a tube type container using a synthetic resin tube, the pressing force is applied to the tube to discharge the fluid, and then the pressing force is released. Then, air flows backward from the fluid discharge opening to the fluid reservoir due to the elastic restoring force of the tube, and the quality of the fluid stored therein is deteriorated.
[0004]
For this reason, a tube-type container is proposed in which a flat valve body is attached to the fluid discharge opening in such a tube-type container, and the opening is closed by this valve body when the tube is elastically restored. (For example, JP-A-7-12749, JP-A-10-157751, JP-A-59-26748, etc.).
[0005]
[Problems to be solved by the invention]
In such a tube-type container provided with a flat plate-like valve body, when the tube performs an elastic restoring operation gently, the valve body does not close the opening of the tube-type container, There are cases where air flows backward into the reservoir.
[0006]
In addition, the conventional tube-type container provided with a flat plate-like valve element has a problem of low durability.
[0007]
The present invention has been made in order to solve the above-described problems, and provides a fluid tube-type container that can reliably prevent backflow of air while having a simple configuration, 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 body having a fluid discharge port formed at one end thereof, and a valve mechanism disposed in the discharge port. The valve mechanism has an opening that forms a valve seat at the center thereof, a support portion having a substantially cylindrical shape that can be attached to the discharge port, and a region in which the opening in the support portion is formed. The valve portion that can be contacted from the opposite side of the container body, the connection portion standing on the container body side of the valve portion, and the support portion and the connection portion are connected with elasticity. A plurality of connecting portions for urging the valve portion toward the opening, and the support portion and the valve portion in the valve mechanism are evenly arranged at least three connecting portions. And the connecting portion of the valve mechanism is bent. Characterized in that it has a.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded longitudinal sectional view showing a fluid tube-type container according to a first embodiment of the present invention, and FIG. 2 is a main portion of a fluid tube-type container according to a first embodiment of the present invention. FIG.
[0010]
This fluid tube-type container is a gel (gel) generally called gel, such as hair gel and cleansing gel used in the field of beauty, or as a container for cream-like products such as nutritional cream and massage cream. It is what is used. In addition, you may use this tube type container as containers, such as a general chemical | medical agent, a solvent, or a foodstuff. In this specification, the term “fluid” includes a normal liquid, a high-viscosity liquid, a semi-fluid, or a gel or a cream-like substance obtained by solidifying a sol in a jelly form.
[0011]
The fluid tube-type container includes a container body 1, a lid member 2, and a valve mechanism 3.
[0012]
The container body 1 includes a tube-type fluid reservoir 11 for storing a fluid therein, a fluid discharge port 12 formed at one end of the fluid reservoir 11, and the discharge port 12. The flange part 13 formed in the upper end vicinity of this and the external thread part 14 formed in the outer side of the discharge outlet 12 are provided. The container body 1 has a configuration in which a synthetic resin alone or a synthetic resin and aluminum are laminated, and has an elastic restoring force that attempts to return to the original shape when the pressing force applied thereto is released.
[0013]
The lid member 2 includes an outer lid portion 21 and a female screw portion 22 formed therein. In this fluid tube type container, the discharge port 12 of the container main body 1 is configured to be closed when the female screw portion 22 is screwed with the male screw portion 14 of the container main body 1.
[0014]
Next, the configuration of the valve mechanism 3 will be described. FIG. 3 is a plan view of the valve mechanism 3, and FIG. 4 is a side view of the valve mechanism. In addition, in FIG. 3, illustration of the valve part 33 and the 1st connection part 34 which are mentioned later is abbreviate | omitted.
[0015]
2 to 4, the valve mechanism 3 includes a support portion 32 having a substantially cylindrical shape in which an opening portion 31 (see FIG. 2) forming a valve seat is formed at the center thereof, and a support portion. 32, a valve portion 33 capable of coming into contact with the region where the opening 31 is formed from the side opposite to the container main body 1, and a first connection portion 34 erected on the container main body 1 side of the valve portion 33. The valve portion 33 is configured as a valve seat by connecting the second connection portion 35 having a substantially T-shaped cross section connected to the first connection portion, the support portion 32, and the second connection portion 35 with elasticity. And four connecting portions 36 that are biased toward the opening portion 31 to be provided.
[0016]
The four connecting portions 36 are arranged equally to each other. Each of these connecting portions 36 includes two bent portions 37.
[0017]
A groove portion 38 (see FIG. 4) that can be engaged with the flange portion 13 in the container body 1 is formed on the outer peripheral surface of the support portion 32. For this reason, the valve mechanism 3 is attached to the discharge port 12 of the container body 1 using the groove 38 as shown in FIG.
[0018]
In addition, the support part 32, the 1st, 2nd connection parts 34 and 35, and the connection part 36 which were mentioned above are injection | emission made from synthetic rubbers, such as resin, such as polyethylene and a polypropylene, a silicone rubber, or these, etc., for example. Produced by molding. And the support part 32, the connection part 36, the 2nd connection part 35, and the valve part 33 and the 1st connection part 34 are mutually shape | molded, and are mutually connected.
[0019]
In the tube-type container having the above-described configuration, when the fluid is discharged from the inside of the container main body 1, pressure is applied to the fluid in the fluid reservoir 11 by pressing the fluid reservoir 11. In this state, as shown in FIG. 2B, the valve portion 33 is pressed by the fluid, and the valve portion 33 is formed with an opening portion 33 that constitutes a valve seat against the elastic force of the connecting portion 36. Separated from the support 32. Then, the fluid in the fluid reservoir 11 passes through the opening 31 and is discharged to the outside.
[0020]
On the other hand, after the necessary amount of fluid is discharged, when the pressing force to the fluid reservoir 11 is released, the fluid in the fluid reservoir 11 is depressurized by the elastic restoring force of the container body 1, and the opening Air tends to flow backward from 31 toward the fluid reservoir 11.
[0021]
However, in this tube-type container, when the fluid in the fluid reservoir 11 is depressurized by the action of the connecting portion 36, the valve 33 forms a valve seat as shown in FIG. The opening 31 constituting the flow path of the fluid is closed by instantaneously contacting the support portion 32 formed with the opening 33. For this reason, it becomes possible to prevent backflow of air effectively.
[0022]
At this time, in the valve mechanism 3 according to this embodiment, the amount of movement of the valve body 33 changes according to the pressing force to the fluid storage unit 11, that is, the pressure applied to the valve mechanism 3, and the opening 31 It becomes possible to arbitrarily change the flow rate of the fluid passing therethrough. Therefore, when a normal liquid is used as the fluid, it is possible to discharge the liquid at a constant rate by applying a small pressure to the liquid in the fluid reservoir 11.
[0023]
Further, in the valve mechanism 3 according to this embodiment, the upper surface of the valve portion 33 in the valve mechanism 3 is disposed at a position close to the upper surface of the flange portion 13 in the container body 1. For this reason, it is possible to minimize the amount of the fluid remaining in the opening 31 in the container body 1 after the fluid discharge operation.
[0024]
Further, in the valve mechanism 3, the four connecting portions 36 that connect the support portion 32 and the valve body 33 each have a pair of bent portions 37. For this reason, these connection parts 36 have appropriate elasticity, and it becomes possible for the valve body 33 to reciprocate smoothly between the closed position and the open position.
[0025]
Next, the configuration of a fluid tube-type container according to another embodiment of the present invention will be described. FIG. 5 is an exploded longitudinal sectional view showing a fluid tube-type container according to a second embodiment of the present invention.
[0026]
In the fluid tube-type container according to the first embodiment described above, the female screw portion 22 is screwed with the male screw portion 14 of the container main body 1 to close the discharge port 12 of the container main body 1. Although the lid member 2 is used, in the second embodiment, the lid member 4 having a fluid discharge port 41 at its tip is used. In the fluid container according to the second embodiment, the female screw portion 42 is screwed with the male screw portion 14 in the container main body 1, whereby the discharge port 12 of the container main body 1 and the discharge port 41 of the lid member 4. Is configured to communicate.
[0027]
Next, the configuration of a fluid tube-type container according to still another embodiment of the present invention will be described. FIG. 6 is an exploded longitudinal sectional view showing a fluid tube-type container according to a third embodiment of the present invention.
[0028]
In the fluid tube-type container according to the third embodiment, a lid member comprising a base 51 having a fluid discharge port 53 at the center thereof and an upper lid 52 that can be swung with respect to the base 51. 5 is used. In the fluid container according to the third embodiment, the female screw portion 53 is screwed with the male screw portion 14 in the container main body 1, whereby the discharge port 12 of the container main body 1 and the discharge port 54 of the lid member 5. Is configured to communicate. In the fluid container according to the third embodiment, the discharge port 54 of the lid member 5 can be opened and closed by swinging the upper lid 52 with respect to the base 51.
[0029]
In each of the above-described embodiments, the support portion 32 and the second connection portion 35 are connected by the four connection portions 36 that are evenly arranged, but the number of the connection portions 36 is four. It should not be limited. However, if the supporting portion 32 and the second connecting portion 35 are connected by three or more connecting portions that are evenly arranged, it is possible to prevent the valve portion 32 from being inclined inappropriately. It becomes.
[0030]
In each of the above-described embodiments, the upper end of the support portion 32 in the valve mechanism 3 is arranged at the substantially same position as the upper end of the discharge port 12 in the container body 1, and the inner diameter of the opening portion 31 in the valve mechanism 3. Is substantially the same as the inner diameter of the discharge port 12 in the container body 1. However, for example, like the lid member 4 shown in FIG. 5, the shape of the support portion 32 is a nozzle shape whose opening becomes smaller as it goes upward, and is formed at the upper end of the nozzle-like opening whose inner diameter is reduced. It is good also as a structure by which a valve part is contact | abutted.
[0031]
【The invention's effect】
According to the first aspect of the present invention, the valve mechanism includes a support portion having a substantially cylindrical shape that can be attached to the discharge port with an opening that forms a valve seat formed in the center thereof, and the support portion in the support portion. The valve part that can contact the region where the opening is formed from the side opposite to the container body, the connection part erected on the container body side of the valve part, the support part and the connection part with elasticity Since it has a plurality of connecting parts that urge the valve part toward the opening by connecting, it is possible to reliably prevent backflow of air while having a simple configuration, and its durability Is also excellent.
[0032]
Further , since the support portion and the valve portion in the valve mechanism are connected by three or more connecting portions that are evenly arranged, it is possible to prevent the valve body from being inclined inappropriately.
[0033]
Furthermore , since the connecting portion in the valve mechanism has a bent portion, the connecting portion has a more appropriate elastic restoring force, and the valve body can be moved between the closed position and the open position more favorably. It becomes possible.
[Brief description of the drawings]
FIG. 1 is an exploded vertical sectional view of a tube-type container according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a main part of the tube-type container according to the first embodiment of the present invention.
FIG. 3 is a plan view of the valve mechanism 3. FIG.
4 is a side view of the valve mechanism 3. FIG.
FIG. 5 is an exploded longitudinal sectional view showing a fluid tube-type container according to a second embodiment of the present invention.
FIG. 6 is an exploded longitudinal sectional view showing a fluid tube-type container according to a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid member 3 Valve mechanism 4 Lid member 5 Lid member 11 Fluid storage part 12 Discharge port 13 Flange part 14 Male screw part 21 Outer cover part 22 Female screw part 31 Opening part 32 Support part 33 Valve part 34 1st Connection portion 35 Second connection portion 36 Connection portion 37 Bending portion 41 Discharge port 42 Female screw portion 51 Base portion 52 Upper lid 53 Female screw portion 54 Discharge port

Claims (1)

A fluid tube-type container having a tube-shaped container body having a fluid discharge port formed at one end thereof and a valve mechanism disposed at the discharge port,
The valve mechanism is
An opening that forms a valve seat is formed in the center thereof, and a support portion having a substantially cylindrical shape that can be attached to the discharge port;
A valve part capable of coming into contact with the container body from the side opposite to the region where the opening is formed in the support part;
A connecting portion erected on the container body side in the valve portion;
A plurality of connecting portions for urging the valve portion toward the opening by connecting the support portion and the connecting portion with an elastic force ;
The support portion and the valve portion in the valve mechanism are connected by three or more connecting portions that are equally arranged,
The fluid tube type container , wherein the connecting portion in the valve mechanism has a bent portion .

Images