JP6100183B2 - Liquid leak prevention cap for double containers - Google Patents

Description

  The present invention is attached to the mouth of a double container that prevents oxidation of, for example, soy sauce or sauce, and prevents liquid leakage or splashing from the spout when the lid is applied after extruding the liquid from the container. The present invention relates to a liquid leakage prevention cap for a double container.

  Conventionally, a delami container is known as a two-layer container for storing eye drops and the like in a sterile state. This delamination container has a two-layer structure consisting of an outer layer and an inner bag, and air enters between the outer layer and the inner bag through a vent hole provided in the outer layer, and when the air pushes the inner bag, the content liquid is dropped. It has a structure.

  Patent Document 1 discloses a squeeze-type discharge container using the two-layer structure of the delamination container. This discharge container is intended to provide a squeeze type discharge container at a low cost by providing a one-way valve for introducing outside air between the outer layer and the inner layer.

  However, in the discharge container described in Patent Document 1, when the check valve is activated after the contents of the inner container are poured out, the contents remaining in the outlet are not returned to the inner container, and liquid leaks from the outlet. There was a risk of doing so.

  Therefore, Patent Document 2 discloses a discharge container that prevents liquid leakage of such a two-layered container. This discharge container is a double container having a structure for preventing the stored liquid from being oxidized. A communication hole communicating from the discharge port to the inner container is formed in the inner cap member of the discharge cap, and the valve body portion is formed in this communication hole. By arranging this, liquid leakage from the discharge port is prevented.

JP 2004-231280 A JP 2012-192975 A

  However, in the discharge container described in Patent Document 2, a communication hole that communicates from the discharge port to the inner container is formed in the inner cap member of the discharge cap, and a valve body portion that opens and closes the communication hole is disposed in the communication hole. Since the structure to be installed is adopted, the structure of the cap is extremely complicated.

  In addition, the configuration of the double container that can be used in this discharge container is limited to the double container in which the positions of the communication hole formed in the discharge cap and the communication hole formed in the double container match, so any position It was impossible to use a double container provided with a valve.

  Therefore, the present invention was created to solve the above-mentioned problems, has a simple configuration, can be used without being limited to a specific double container, and can prevent liquid leakage after extrusion. The purpose is to provide a liquid leakage prevention cap.

In order to solve the above-mentioned problem, the first means of the present invention is that air enters between the outer container P1 and the inner container P2 from an intake hole with a check valve provided in the flexible outer container P1. In addition, this air presses the flexible inner container P2, thereby preventing the liquid contained in the inner container P2 from being oxidized. In the cap,
The liquid leakage prevention cap is provided with a capped cylindrical sealing plug 11 which is fitted into the mouth P3 of the double container P and seals the mouth P3, and the liquid is poured into the top of the sealing cap 11. An upper lid provided with an inner lid body 10 provided with a dispensing cylinder portion 12 and a sealing portion 21 that detachably attaches to the upper surface of the inner lid body 10 and seals the opening of the dispensing cylinder portion 12. Body 20 and
An opening / closing valve body 30 is provided inside the sealing plug 11 so that the bottom of the opening of the sealing plug 11 can be freely opened and closed, and an elastic member 31 that biases the opening / closing valve body 30 toward the bottom of the sealing plug 11 is opened / closed. The on-off valve body 30 is arranged on the upper surface of the body 30 so as to be movable up and down,
The on-off valve body 30 has a support shaft 33 that is suspended up and down slidably on a support arm portion 15 projecting from the lower surface of the top of the sealing plug 11, and a disk-like shape that extends around the support shaft 33. A check valve 32 and an elastic member 31 disposed between the check valve 32 and the bottom lower surface of the sealing plug 11 and biasing the check valve 32 toward the bottom of the sealing plug 11 .
The elastic member 31 has a plate shape extending spirally upward from the center upper portion of the check valve 32, and a plurality of the elastic members 31 are arranged around the support shaft 33 ,
When the liquid is dispensed, the on-off valve body 30 is pressed by the pressure that pushes the liquid out of the double container P, and the bottom of the sealing plug 11 opens, so that the liquid passes through the sealing plug 11 and is dispensed from the dispensing cylinder 12. ,
After the liquid is poured out, the on-off valve body 30 is pressed by the elastic force of the elastic member 31 and moves downward from the inside of the sealing plug 11 to seal the bottom portion, and the liquid in the dispensing cylinder part 12 is discharged. It is configured to be pulled back.

2nd means WHEREIN: The said sealing stopper 11 is spaced from the fitting wall part 11A fitted in the opening part P3 of the said double container P from the top part of a top cylinder shape, and the inside of this fitting wall part 11A. And a passage wall portion 11B provided around the opening is formed,
The dispensing tube portion 12 is formed at the top of the sealing plug 11 located inside the passage wall portion 11B, and the opening / closing valve body 30 is disposed inside the passage wall portion 11B so as to be movable up and down.
A sealing ring 13 is projected along the inner peripheral surface of the bottom of the passage wall 11B. When the peripheral edge of the on-off valve body 30 comes into contact with the sealing ring 13, the bottom of the passage wall 11B is sealed and sealed. When the on-off valve body 30 is separated from the ring 13, the liquid passes from the periphery of the on-off valve body 30 to the extraction tube portion 12.

  In the sealing plug 11 of the third means, a plurality of passage groove portions 14 are vertically formed in the inner peripheral surface of the passage wall portion 11 </ b> B so that liquid passes through the sealing plug 11 through the passage groove portion 14. It is configured.

As in claim 1 of the present invention, the opening and closing valve body 30 is pressed by the pressure that pushes out the liquid from the double container P when the liquid is dispensed, and the bottom of the sealing plug 11 opens, so that the liquid passes through the sealing plug 11. The on-off valve body 30 that is poured out from the dispensing cylinder portion 12 and after the liquid is poured is pressed by the elastic force of the elastic member 31 to move downward from the inside of the sealing plug 11 to seal the bottom. In this way, it is possible to reliably prevent the liquid leakage after the extrusion. In addition, the configuration is simple, and it is possible to use without being limited to a specific double container.
The on-off valve body 30 includes a support shaft 33 that is suspended up and down slidably on a support arm portion 15 that projects from the top lower surface of the sealing plug 11, and a circle that extends around the support shaft 33. A plate-shaped check valve 32 and an elastic member 31 that is disposed between the check valve 32 and the bottom surface of the top of the sealing plug 11 and biases the check valve 32 toward the bottom of the sealing plug 11. Therefore, the structure of the on-off valve body 30 is simplified, and the on-off valve body 30 moves by the amount of pushing the double container P, so that the liquid flow rate can be finely adjusted .
Furthermore, the elastic member 31 has a plate shape extending spirally upward from the center upper portion of the check valve 32, and a plurality of the elastic members 31 are arranged around the support shaft 33. Each elastic member 31 can press the check valve 32 uniformly .

  As in claim 2, when the peripheral edge of the on-off valve body 30 comes into contact with the sealing ring 13, the bottom of the passage wall portion 11 </ b> B is sealed, and when the on-off valve body 30 is separated from the sealing ring 13, By configuring so that the liquid passes through the outlet tube portion 12, leakage after extrusion can be prevented even if the configuration is simple.

  As in claim 3, in the sealing plug 11, a plurality of passage grooves 14 are vertically recessed on the inner peripheral surface of the passage wall portion 11 </ b> B, and the liquid passes through the sealing plug 11 through the passage grooves 14. With this configuration, the flow rate of the liquid passing through the sealing plug 11 is regulated by the passage groove portion 14. As a result, the liquid is not suddenly discharged and stable dispensing can be performed.

  As described above, according to the present invention, there are various industrially useful effects such as a simple configuration, which can be used without being limited to a specific double container, and can prevent liquid leakage after extrusion. Is.

It is sectional drawing of the state which showed one Example of this invention and closed the cap body. It is a perspective view which shows one Example of the on-off valve body of this invention. It is sectional drawing of the state which showed one Example of this invention and opened the cap body. It is sectional drawing which shows the state which extrudes a liquid from this invention. (A), (b) is an enlarged sectional view of a main part showing the movement of the on-off valve body of the present invention. It is a perspective view which shows the inside of the inner cover body which removed the on-off valve body from this invention. It is a perspective view of the state where an example of the present invention was shown and a cap body was opened.

  Embodiments of the present invention will be described below. The liquid leakage prevention cap of the present invention is attached to the mouth portion P3 of the double container P configured to be stored while preventing oxidation of a liquid having a low viscosity such as soy sauce, olive oil, and cosmetics.

  This double container P is a squeeze-type double container using a two-layer structure of a delamination container composed of a flexible outer container P1 and a flexible inner container P2. That is, air enters between the outer container P1 and the inner container P2 from the intake hole with a check valve provided in the flexible outer container P1, and this air presses the flexible inner container P2. It is configured to prevent oxidation of the liquid stored in the inner container P2.

  The liquid leakage prevention cap of the present invention includes an inner lid body 10, an upper lid body 20, and an on-off valve body 30 (see FIG. 1). The inner lid body 10 is a member that fits into the mouth portion P3 of the double container P and seals the mouth portion P3, and has a sealing plug 11 that has a top tube shape, and a note provided on the top portion of the sealing plug 11. And a protruding tube portion 12. And it is comprised so that a liquid may be poured out from the sealing stopper 11 through the extraction cylinder part 12 (refer FIG. 3).

  The illustrated sealing plug 11 forms a cylindrical fitting wall portion 11A and a passage wall portion 11B from the top portion of the top tube shape (see FIG. 3). The fitting wall portion 11A is fitted into the mouth portion P3 of the double container P to seal the mouth portion P3. In the illustrated example, the inner lid body 10 is shown in which the fitting wall portion 11A and the fitting portion 16 that is externally fitted to the screw portion of the mouth portion P3 are integrally formed. It is also possible to form the inner lid body 10 separately from the portion 16.

  The passage wall portion 11B is a portion that is provided around the inside of the fitting wall portion 11A with a space therebetween, and is formed with a dispensing cylinder portion 12 at the top of the sealing plug 11 that is located inside the passage wall portion 11B. (See FIG. 6). Therefore, the liquid in the double container P passes through the sealing plug 11 from the inside of the passage wall portion 11B and is poured out from the dispensing cylinder portion 12 (see FIG. 5 (A)).

  In the illustrated example, an opening / closing valve body 30 is arranged inside the passage wall portion 11B so as to be movable up and down (see FIGS. 3 and 4). On the other hand, a sealing ring 13 is provided so as to protrude along the inner peripheral surface of the bottom of the passage wall 11B. When the on-off valve body 30 comes into contact with the sealing ring 13, the bottom of the passage wall portion 11B is sealed (see FIG. 3).

  Furthermore, when the on-off valve body 30 is separated from the sealing ring 13, the liquid passes from the periphery of the on-off valve body 30 to the dispensing cylinder portion 12 (see FIG. 4). In the illustrated sealing plug 11, a plurality of passage grooves 14 are vertically recessed on the inner peripheral surface of the passage wall portion 11B (see FIG. 6). The liquid passes through the sealing plug 11 through the passage groove 14.

  The upper lid body 20 is a member that is detachably attached to the upper surface of the inner lid body 10, and includes a sealing portion 21 that seals the opening portion of the dispensing cylinder portion 12 (see FIG. 7). The illustrated sealing part 21 is inserted into the extraction cylinder part 12. Therefore, when the liquid remains in the inside of the extraction | pouring cylinder part 12, when inserting this sealing part 21, it will scatter to circumference | surroundings. Therefore, in this invention, it is comprised so that the liquid in the extraction cylinder part 12 may be pulled back in the inner cover body 10 using the on-off valve body 30 mentioned later.

  The illustrated upper lid 20 is provided integrally with the inner lid 10 via a hinge 22. The upper lid 20 is not limited to the illustrated example, and can be formed separately from the upper lid 20. Moreover, the structure of the sealing part 21 is not restricted to the example of illustration, For example, it is also possible to form so that it may fit in the opening | mouth part of the extraction | pouring cylinder part 12. FIG.

  The on-off valve body 30 is a member that seals the opened bottom of the sealing plug 11 so as to be openable and closable and prevents the liquid in the double container P from being oxidized, and is disposed inside the sealing plug 11. The illustrated on-off valve body 30 includes an elastic member 31, a check valve 32, and a support shaft 33 (see FIG. 2). The support shaft 33 is a part that is suspended so as to be slidable up and down on the support arm part 15 protruding from the top lower surface of the sealing plug 11 (see FIG. 3). The illustrated support arm portion 15 is a substantially top cylindrical member having a vertical slit formed on the side surface (see FIG. 6). Further, a check valve 32 is extended around the support shaft 33.

  A bottomed cylindrical holding cylinder 34 is formed around the support shaft 33 (see FIG. 3). The holding cylinder 34 is configured to slide up and down at a certain position by preventing the tilt when the support shaft 33 moves up and down by sliding in a state of surrounding the outer periphery of the support arm 15. It is.

  The check valve 32 is a member having a disk shape and a peripheral edge abutting on the sealing ring 13 of the passage wall portion 11B so as to be freely opened and closed. An elastic member 31 is disposed between the check valve 32 and the bottom lower surface of the sealing plug 11 (see FIG. 2).

  The elastic member 31 is constituted by an elastic material that urges the check valve 32 toward the bottom of the sealing plug 11. The illustrated elastic member 31 has a plurality of plate shapes that spirally extend upward from the upper surface of the holding cylinder 34 (see FIG. 2). Further, the elastic member 31 is disposed around the support shaft 33 and is provided so that each elastic member 31 presses the check valve 32 uniformly.

  When liquid is poured out from the liquid leakage prevention cap of the present invention, the on-off valve body 30 is pushed upward by the pressure for pushing out the liquid from the double container P, and the check valve 32 is separated from the sealing ring 13 (see FIG. 4). ). When it does so, the bottom part of the distribution | circulation wall part 11B of the sealing plug 11 will open, and a liquid will pass through the sealing plug 11 and will be poured out from the extraction | pouring cylinder part 12 (refer Fig.5 (A)).

  On the other hand, after the liquid has been dispensed, the opening / closing valve body 30 is pressed downward by the elastic force of the elastic member 31, and the check valve 32 moves downward from the inside of the sealing plug 11 to abut against the sealing ring 13. Then, the bottom of the circulation wall 11B is sealed to prevent the liquid in the double container P from being oxidized (see FIG. 3). At this time, the check valve 32 is moved so that the liquid in the dispensing cylinder portion 12 is pulled back into the sealing plug 11 (see FIG. 5B).

  In addition, the structure of this invention is not limited to the example of illustration, Each structure, such as the inner cover body 10, the upper cover body 20, and the on-off valve body 30, should be changed arbitrarily in the range which does not change the main point of this invention. Can do. Further, the container to which the liquid leakage prevention cap of the present invention is attached is not limited to the double container, and can be attached to another container.

P Double container P1 Outer container P2 Inner container P3 Mouth part 10 Inner lid body 11 Seal plug 11A Fitting wall part 11B Passing wall part 12 Outlet tube part 13 Sealing ring 14 Passing groove part 15 Support arm part 16 Fitting part 20 Upper lid Body 21 Sealing portion 22 Hinge 30 On-off valve body 31 Elastic member 32 Check valve 33 Support shaft 34 Holding cylinder

Claims (3)

Air enters between the outer container and the inner container through an intake hole with a check valve provided in the flexible outer container, and the air is accommodated in the inner container by pressing the flexible inner container. In the double container liquid leakage prevention cap attached to the mouth of the double container configured to prevent liquid oxidation,
The liquid leakage prevention cap is provided with a top cylindrical sealing plug that fits into the mouth of the double container and seals the mouth, and includes a dispensing cylinder that pours liquid to the top of the sealing stopper. An inner lid body, and an upper lid body that is detachably attached to the upper surface of the inner lid body and has a sealing portion that seals the opening of the dispensing cylinder portion,
An open / close valve body for opening and closing the open bottom portion of the seal plug is provided inside the seal plug, and an elastic member for biasing the open / close valve body toward the bottom portion of the seal plug is disposed on the upper surface of the open / close valve body. The valve body can be moved up and down
The on-off valve body includes a support shaft suspended slidably up and down on a support arm projecting from the bottom surface of the top of the sealing plug, and a disc-shaped check valve extending around the support shaft. And an elastic member disposed between the check valve and the bottom lower surface of the sealing plug and biasing the check valve toward the bottom of the sealing plug. It forms a plate shape that extends spirally upward, and a plurality of the elastic members are arranged around the support shaft ,
When the liquid is poured out, the opening and closing valve body is pressed by the pressure that pushes the liquid out of the double container, and the bottom of the sealing plug opens, so that the liquid passes through the sealing plug and is poured out from the dispensing cylinder.
After the liquid has been dispensed, the on-off valve body is pressed by the elastic force of the elastic member and moved downward from the inside of the sealing plug so that the liquid in the dispensing cylinder is pulled back by the on-off valve body that seals the bottom. Liquid leakage prevention cap for double containers. The sealing plug includes a fitting wall portion that fits into the mouth portion of the double container from a top portion of a tubular shape, and a passage wall portion that is provided around the inside of the fitting wall portion with a space therebetween. Formed,
The pouring tube portion is formed at the top of the sealing plug located inside the passage wall portion, and the opening and closing valve body is disposed inside the passage wall portion so as to be movable up and down, and the bottom portion of the passage wall portion is opened. Protruding a sealing ring along the inner peripheral surface,
When the peripheral edge of the on-off valve body comes into contact with the sealing ring, the bottom of the passage wall is sealed,
The liquid leakage prevention cap for a double container according to claim 1, wherein when the on-off valve body is separated from the sealing ring, liquid passes from the periphery of the on-off valve body to the extraction tube portion.   3. The sealing plug according to claim 2, wherein a plurality of passage grooves are vertically recessed in the inner peripheral surface of the passage wall, and the liquid passes through the sealing plug through the passage groove. Liquid leak prevention cap for heavy containers.

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