JP2010100303A - Container with air ventilating function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container with an air ventilating function having a simple liquid stopping structure, which allows one to certainly perform air ventilation only by opening a cap, and to safely pour out an appropriate amount of liquid to a desired location. <P>SOLUTION: A container body 12 includes an inner plug 18 of a circular cylinder shape. The inner plug 18 includes a nozzle part 24 protruding from an extracting port 14, and a spout port 26 formed in the nozzle part 24. A spout valve 30 for sliding so that a part thereof protrudes from and retracts to the spout port 26 is provided inside the inner plug 18. The spout valve 30 includes a valve part 36 for sealing the spout port 26 when the part of the spout valve 30 protrudes from the spout port 26. The container also includes an resilient body for biasing the spout valve 30 in the protruding direction of the spout valve from the spout port 26. The container also includes a protruding part 48 for opening the spout port 26 by pushing the spout valve 30 into the spout port 26 against a coil spring 42 and for sealing the spout port 26, in which a cap 44 is fitted and tightened to the container body 12. In the middle of opening and closing of the cap 44, the spout port 26 is opened, and air ventilation between the inside and the outside of the container body 12 is possible. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a container with an air vent mechanism that accommodates liquid medicines, cosmetics, foods and other fluid materials.

  2. Description of the Related Art Conventionally, there are containers for storing liquid medicines, cosmetics, foods and other fluid materials, and dispensing the fluid materials and applying them to objects. For example, containers used for athlete's foot medicine containers and the like have a structure in which a liquid stopper mechanism is provided at the nozzle portion so as not to be dripped into the eye by mistake, and the chemical liquid does not come out unless the tip is pushed.

  As shown in FIG. 7, there is a conventional container in which a chemical solution that is a container is poured when the container is inverted and pressed against an object. In the container 1, a cylindrical outlet 3 is formed integrally with a bottomed cylindrical container body 2, and a male screw 4 is formed on the outer surface of the outlet 3. An inner stopper 5 is provided inside the outlet 3, and an extraction valve 6 is provided inside the inner outlet 5 so as to be able to project and retract. The dispensing valve 6 is molded from a flexible synthetic resin, and closely contacts the inside of the spout 5a when the protruding portion 6a protrudes outward from the spout 5a of the inner plug 5 and the protruding portion 6a. A valve portion 6b and a spring portion 6c that urges the pouring valve 6 in a direction protruding from the pouring port 5a are integrally provided. A cap 7 is screwed onto the male screw 4 so as to cover the inner plug 5 outside the outlet 3. A cylindrical projection 8 is integrally formed on the back surface of the top surface of the cap 7, and the tip of the projection 8 comes into contact with the peripheral edge of the spout 5 a of the inner plug 5 when the cap 7 is closed to the outlet 3. Is.

  In order to take out the chemical solution from the container 1, the cap 7 is removed, the container body 2 is inverted, and the protrusion 6 a of the dispensing valve 6 is pressed against the object to be retracted. Then, the valve part 6b of the pouring valve 6 is separated from the pouring port 5a of the inner plug 5, the pouring port 5a is opened, and the contents inside the container body 2 flow out from the pouring port 5a and are poured out.

In addition, in the application containers disclosed in Patent Document 1 and Patent Document 2, an inner stopper is fitted to the container mouth, and a synthetic resin valve body is inscribed inside the inner stopper. .
JP-A-4-27959 JP 2003-10342 A

  In the case of the container as in the above background art, since a liquid stopping mechanism is provided, if there is a temperature difference during storage, the pressure in the container may rise above the atmospheric pressure. If you pour out, a large amount of chemical may be discharged. In the product manual, it is written that the container body is turned up before use, and the extraction valve is pushed in to release the air, but many users do not read the manual carefully. There is no end to complaints about excessive chemicals, and improvements in containers are desired. Also, since the spring part of the dispensing valve is made of synthetic resin, the pressing force is attenuated due to secular change, the sealing performance of the dispensing valve and the inner stopper deteriorates, and the liquid stop structure stops functioning. There was also a problem.

  The present invention has been made in view of the above-mentioned problems of the background art, has a liquid stopper structure with a simple structure, and is surely vented by an operation of opening a cap, so that an appropriate amount of liquid can be safely discharged. An object is to provide a container with an air bleeding function that can be poured into a target place.

  The present invention is provided with a container main body having an outlet formed at one end, and a cylindrical inner plug attached to the inner peripheral surface of the outlet of the container main body. And a spout formed in the nozzle portion. An inside of the inner plug is provided with an extraction valve that slides partly from the outlet, so that a part of the outlet valve protrudes from the outlet. Sometimes a valve portion is formed to seal the spout. An elastic body that urges the dispensing valve in a direction protruding from the dispensing port is provided. A cap that is removably attached to the outlet of the container body so as to cover the nozzle portion is provided, and the cap is locked when approaching the spout of the nozzle portion. The cap is attached to the container body and tightened, and the pouring valve is pushed into the pouring port against the elastic body to open the pouring port and the pouring port is sealed. A protrusion is formed. During the opening and closing of the cap, the valve portion of the pouring valve and the protruding portion of the cap are separated from the pouring port, the pouring port is opened, and the inside and outside of the container main body can be ventilated. . The cap is formed with a female screw, the container body is formed with a male screw at the outlet, and the cap is attached by screwing the female screw with the male screw of the outlet. is there.

  Further, the elastic body is a metal coil spring, and is provided by being compressed between a protrusion provided at a position near the inside of the container body on the inner peripheral surface of the inner plug and the dispensing valve. . The dispensing valve is made of rubber or a thermoplastic elastomer.

  The protruding portion of the cap surrounds the spout and seals the spout. Or the said protrusion part of the said cap closely_contact | adheres in the said spout, and seals the said spout.

  The container with an air bleeding mechanism of the present invention has a simple structure and a liquid stopper structure, and air is automatically vented inside and outside the container body by ensuring ventilation inside and outside the container body during the operation of opening the cap. Can be made equal to atmospheric pressure. As a result, even if there is an increase in pressure in the container due to a temperature difference during storage, it is possible to eliminate the liquid in the container before pouring out the liquid in the container and safely pour out an appropriate amount of liquid to the target location.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment of the present invention, and a container 10 with an air vent mechanism of this embodiment has a bottomed cylindrical container body 12, and the container body 12 is a relatively hard synthetic. Made of resin. A cylindrical outlet 14 having a small diameter is integrally formed at the upper end of the container body 12, and a male screw 16 is formed on the outer surface of the outlet 14.

  An inner plug 18 is provided on the inner peripheral surface of the outlet 14. The inner plug 18 is provided with a cylindrical mounting portion 20 that is fitted inside the outlet 14, and a flange portion 22 that makes contact with the upper end of the outlet 14 goes around the outer peripheral surface of the mounting portion 20. It is integrally formed. The attachment portion 20 is divided by a flange portion 22, and the opposite portion becomes a nozzle portion 24 that protrudes outside the outlet 14. The diameter of the nozzle portion 24 decreases as it approaches the distal end surface 24 a opposite to the flange portion 22, and a spout 26 is opened at the center of the distal end surface 24 a to communicate the inside and outside of the nozzle portion 24. A valve seat 28 is formed at a boundary portion between the inner peripheral surface of the inner plug 18 and the spout 26 and is a tapered surface to which a valve portion 36 of a pour-out valve 30 described later is in close contact. On the inner peripheral surface of the end portion of the mounting portion 20 on the side opposite to the nozzle portion 24, a projection 29 is provided for locking a coil spring 42 described later.

  A cylindrical pouring valve 30 is provided inside the inner plug 18 so as to protrude and retract. The dispensing valve 30 is made of a material having moderate flexibility such as rubber or thermoplastic elastomer, and is formed to be slightly longer than the length from the distal end surface 24a of the inner plug 18 to the end of the mounting portion 20. . A protruding portion 32 having a small diameter protruding outward from the outlet 26 of the inner plug 18 is formed at one end of the outlet valve 30. A plurality of groove portions 33 are formed on the side peripheral surface of the protruding portion 32 along the protruding direction of the protruding portion 32. A valve portion 36, which is a tapered surface that is in close contact with the valve seat 28 of the inner plug 18, is provided around the base end portion of the protruding portion 32. On the side peripheral surface in the vicinity of the middle of the dispensing valve 30, a stepped portion 38 having a diameter that decreases toward the end opposite to the protruding portion 32 is provided. From the step portion 38 to the end portion, there is a shaft portion 40 whose diameter gradually decreases as the end portion is approached.

  A metal coil spring 42 that is an elastic body is wound around the shaft portion 40 of the dispensing valve 30. One end of the coil spring 42 has a small diameter and abuts against the stepped portion 38 of the discharge valve 30, and gradually increases in diameter in a conical shape toward the opposite end of the coil spring 42, while the other end is the inner plug 18. And abuts against the protrusion 29 of the mounting portion 20. The coil spring 42 is appropriately compressed and attached, and biases the pouring valve 30 in a direction protruding from the pouring port 26 of the inner plug 18.

  A cap 44 is provided at the outlet 14 of the container body 12. The cap 44 is provided with a cylindrical side surface 44a that covers the outlet 14 and the inner plug 18, and a circular top surface 44b that closes the tip of the side surface 44a. On the inner peripheral surface of the side surface 44a, a female screw 46 that is screwed into the male screw 16 of the outlet 14 is formed. On the back surface of the top surface 44b, there is provided a columnar protrusion 48 that comes into close contact with the front end surface 24a of the inner plug 18 when the cap 44 is closed. The length of the projecting portion 48 in the projecting direction is such that when the cap 44 is screwed onto the male screw 16 of the outlet 14 and completely closed, the projecting portion 48 comes into contact with the distal end surface 24a. The distal end surface of the protruding portion 48 is formed in a ring shape so as to be in close contact with the entire periphery of the distal end surface 24 a avoiding the spout 26.

  Next, the usage method of the container 10 with an air bleeding mechanism is demonstrated. A chemical solution for treating athlete's foot is accommodated in the container body 12, and the inner plug 18 in which the extraction valve 30 and the coil spring 42 are assembled in advance is attached to the outlet 14 of the container body 12. In the mounting method, the mounting portion 20 is inserted into the inside of the outlet 14 and pushed in until the flange portion 22 comes into contact with the end portion of the outlet 14 to be locked by elastic force and frictional force. At this time, as shown in FIGS. 3 and 4, the pouring valve 30 is pushed up by the coil spring 42, and the protrusion 32 protrudes from the pouring port 26 of the inner plug 18, and the valve portion 36 of the pouring valve 30 is the inner plug 18. The outlet 26 is closed in close contact with the valve seat 28.

  When taking out and using the chemical | medical solution which is a container from the container main body 12, the container main body 12 is turned upside down and the projection part 32 is applied to the place to apply | coat. Since the spout 26 is sealed in the state in which the protruding portion 32 protrudes, the chemical liquid is not poured out even if the container body 12 is turned upside down. However, when the container body 12 is pressed and the coil spring 42 is elastically deformed, the spout valve 30 is pushed in, the valve part 36 of the extraction valve 30 leaves | separates from the valve seat 28 of the inner stopper 18, a chemical | medical solution flows into the groove part 33 formed in the projection part 32, and is discharged from the spout 26. After use, the container body 12 is separated from the place where it is applied. Then, the coil spring 42 is biased and the pouring valve 30 seals the pouring port 26 of the inner plug 18 again.

  When storing, the cap 44 is screwed onto the male screw 16 of the container body 12 as shown in FIG. At this time, the protruding portion 48 of the cap 44 abuts against the protruding portion 32 of the pouring valve 30 and pushes against the coil spring 42, and the valve portion 36 of the pouring valve 30 opens away from the valve seat 28 of the inner plug 18. Is done. And the edge surface peripheral part of the protrusion part 48 of the cap 44 closely_contact | adheres to the front end surface 24a of the nozzle part 24, and the chemical | medical solution accommodated in the container main body 12 does not leak.

  When using again, the cap 44 is removed from the container body 12 by unscrewing. In the process of removing the cap 44, as shown in FIG. 2, the protruding portion 48 of the cap 44 is separated from the distal end surface 24a of the inner plug 18, the spout 26 is opened, and at the same time, the cap 44 is gradually separated. The dispensing valve 30 is pushed up by the coil spring 42. However, until the valve portion 36 of the dispensing valve 30 reaches the valve seat 28 of the inner plug 18, air permeability inside and outside the container body 12 is ensured. As a result, even if there is a pressure increase in the container main body 12 due to a temperature difference during storage, air is removed during this time, and the inside of the container main body 12 becomes equal to the atmospheric pressure.

  According to the container 10 with the air vent mechanism of this embodiment, the air in the container main body 12 is vented before the chemical solution of the contents is poured out with a simple structure and simple operation, so that an appropriate amount of stored items can be safely Can be dispensed to the desired location. Although it has a liquid stopper mechanism with the inner plug 18 and the dispensing valve 30, it can be easily vented by simply opening the cap 44. The user does not forget to vent the air and dispenses the liquid in the contents. Air can be surely vented before Since the air is sufficiently removed, it is possible to prevent the chemical liquid from being discharged together with the air in the container whose pressure has been increased when the chemical liquid is taken out from the container body 12. In addition, since the metal coil spring 42 is used as a means for urging the discharge valve 30, it is durable, and the protrusion / retraction operation of the discharge valve 30 can be reliably performed even after repeated use over a long period of time. Can do. Further, even when the cap 44 is closed and the discharge valve 30 is kept pressed down, the coil spring 42 is unlikely to creep, and if the cap 44 is removed, the discharge valve 30 is pushed up to be in close contact with the inner plug 18 and liquid. Leakage can be prevented. Furthermore, the adhesiveness of the valve part 36 and the valve seat 28 can be improved by making the material of the pouring valve 30 into a flexible material such as rubber or thermoplastic elastomer. Moreover, since the sealing property is high, it is possible to set the pressing force of the coil spring 42 low, the drug solution can be dispensed by simply pressing the protrusion 32, and the portion that touches the skin is soft, so the irritation to the affected area is reduced. can do.

  Next, a second embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the container 50 with an air vent mechanism of this embodiment, an inner plug 18 is provided on the inner peripheral surface of the outlet 14 of the container body 12. The inner plug 18 is provided with a cylindrical attachment portion 20 fitted inside the outlet 14, and a protrusion 29 is provided on the inner peripheral surface of the end portion of the attachment portion 20 opposite to the nozzle portion 24. It has been. A disc-shaped holding plate 52 is provided in contact with the protrusion 29 and is positioned substantially perpendicular to the insertion direction of the mounting portion 20. An insertion hole 54 is provided in the center of the holding plate 52.

  A pouring valve 30 is provided inside the inner plug 18 so as to be able to project and retract. A protruding portion 32 is formed at one end of the dispensing valve 30, and a plurality of slightly deep groove portions 31 are formed on the side peripheral surface of the protruding portion 32 along the protruding direction of the protruding portion 32. A valve portion 36 that is in close contact with the valve seat 28 of the inner plug 18 is provided around the base end portion of the protruding portion 32. On the side peripheral surface near the middle of the dispensing valve 30, a band-shaped step portion 56 having a large diameter is provided. From the step portion 56 to the end portion, a shaft portion 58 having a constant thickness that is thinner than the step portion 56 is formed. The shaft portion 58 has a thickness that is fitted into the insertion hole 54 of the holding plate 52 with a slight gap.

  A coil spring 60 is wound around the shaft portion 58 of the dispensing valve 30, and the coil spring 60 is formed in a cylindrical shape having a constant thickness. The shaft 58 of the dispensing valve 30 is slidably inserted into the insertion hole 54 of the holding plate 52, one end of the coil spring 60 abuts on the step 56 of the dispensing valve 30, and the opposite end is the holding plate. 52 abuts and is locked. The coil spring 60 is appropriately compressed and attached, and urges the pouring valve 30 in a direction protruding from the pouring port 26 of the inner plug 18.

  A cap 44 is provided at the outlet 14 of the container body 12. The cap 44 is provided with a side surface 44a and a top surface 44b. On the back surface of the top surface 44b, there is provided a protrusion 62 that comes into close contact with the spout 26 of the inner plug 18 when the cap 44 is closed. The projecting portion 62 is formed in a cylindrical shape having an outer diameter that is fitted in close contact with the spout 26, and the length in the projecting direction is completely closed by screwing the cap 44 onto the male screw 16 of the outlet 14. The depth of the inner peripheral surface of the spout 26 is reached.

  Next, the usage method of the container 50 with an air bleeding mechanism is demonstrated. The chemical solution is stored in the container body 12, and the inner plug 18 in which the dispensing valve 30, the holding plate 52, and the coil spring 60 are assembled in advance is attached to the outlet 14 of the container body 12. At this time, as shown in FIG. 6, the extraction valve 30 is pushed up by the coil spring 60, the protrusion 32 of the extraction valve 30 protrudes from the outlet 26 of the inner plug 18, and the valve portion 36 of the extraction valve 30 is the inner plug. The spout 26 is closed in close contact with the 18 valve seats 28.

  When taking out and using the chemical | medical solution which is a container from the container main body 12, the container main body 12 is turned upside down and the projection part 32 is applied to the place to apply | coat. Since the spout 26 is sealed in the state in which the protruding portion 32 protrudes, the chemical liquid is not poured out even if the container body 12 is turned upside down. However, when the container body 12 is pressed and the coil spring 60 is elastically deformed, the spout valve 30 is pushed in, the valve part 36 of the extraction valve 30 leaves | separates from the valve seat 28 of the inside plug 18, the chemical | medical solution flows into the groove part 31 formed in the projection part 32, and is discharged from the spout 26. After use, the container body 12 is separated from the place where it is applied. Then, the coil spring 60 is urged, and the extraction valve 30 seals the outlet 26 of the inner plug 18 again.

  When storing, the cap 44 is screwed onto the male thread 16 of the container body 12 as shown in FIG. At this time, the projecting portion 62 of the cap 44 abuts against the projecting portion 32 of the dispensing valve 30 and pushes against the coil spring 60, and the valve portion 36 of the dispensing valve 30 opens away from the valve seat 28 of the inner plug 18. Is done. And the protrusion part 62 of the cap 44 is inserted and sealed in the spout 26 of the nozzle part 24, and the chemical | medical solution accommodated in the container main body 12 does not leak.

  When using again, the cap 44 is removed from the container body 12 by unscrewing. In the process of removing the cap 44, the insertion portion 62 of the cap 44 is pulled out from the spout 26 of the inner plug 18, the spout 26 is opened, and at the same time, the spout valve 30 is moved as the cap 44 is gradually separated. The coil spring 60 is pushed up. However, until the valve portion 36 of the dispensing valve 30 reaches the valve seat 28 of the inner plug 18, air permeability inside and outside the container body 12 is ensured. Even if there is a pressure increase in the container body 12 due to a temperature difference during storage, air is vented during this time, and the interior of the container body 12 becomes equal to the atmospheric pressure.

  According to the container 50 with an air vent mechanism of this embodiment, it has the same effect as the above embodiment. When the cap 44 is closed, the projecting portion 62 is inserted into the spout 26 of the inner plug 18 and hermetically sealed, so that liquid leakage can be reliably prevented during storage. Further, since the coil spring 60 uses a small and constant cylindrical coil, the coil spring 60 is inexpensive.

  In addition, the container with an air bleeding mechanism of the present invention is not limited to the above embodiment, and the material, shape, and shape of each member can be freely changed. In addition, it can be used for chemicals, cosmetics, and other various liquids.

It is a longitudinal cross-sectional view which shows the state which closed the cap of the container with an air bleeding mechanism of 1st embodiment of this invention. It is a longitudinal cross-sectional view which shows the state in the middle of opening and closing the cap of the container with an air bleeding mechanism of 1st embodiment of this invention. It is a longitudinal cross-sectional view which shows the state which opened the cap of the container with an air bleeding mechanism of 1st embodiment of this invention. It is a perspective view of a container with an air bleeding mechanism of a first embodiment of this invention. It is a longitudinal cross-sectional view which shows the state which closed the cap of the container with an air bleeding mechanism of 2nd embodiment of this invention. It is a longitudinal cross-sectional view which shows the state which opened the cap of the container with an air bleeding mechanism of 2nd embodiment of this invention. It is a longitudinal cross-sectional view which shows the state which closed the cap of the container of a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 12 with air vent mechanism Container main body 14 Outlet 16 Male screw 18 Inner plug 24 Nozzle part 26 Outlet 28 Valve seat 30 Outlet valve 32 Projection part 33 Groove part 36 Valve part 38 Step part 40 Shaft part 42 Coil spring 44 Cap 46 Female thread 48 Protrusion

Claims (5)

  A container main body having an outlet formed at one end, a cylindrical inner plug attached to an inner peripheral surface of the outlet of the container main body, and a nozzle portion formed in the inner plug and protruding from the outlet , A spout formed in the nozzle portion, a spout valve that is provided inside the inner plug and slides partly from the spout so as to be able to project and retract, and the spout valve formed in the spout valve A valve portion that seals the spout when a part of the spout protrudes from the spout, an elastic body that biases the spout valve in a direction that protrudes from the spout, and the outlet of the container body A cap that is detachably attached to cover the nozzle portion and is locked when approaching the spout of the nozzle portion, and the spout valve that is formed on the cap and is attached to the container body and tightened Push the inside of the spout against the elastic body A protrusion for opening the injection outlet and sealing the outlet is provided. During the opening and closing of the cap, the valve portion of the extraction valve and the protrusion of the cap are separated from the injection outlet and the injection A container with an air venting mechanism, characterized in that an outlet is opened and ventilation between the inside and outside of the container body is possible.   The elastic body is a metal coil spring, and is compressed and provided between a protrusion provided at a position close to the inside of the container body on the inner peripheral surface of the inner plug and the dispensing valve. The container with an air bleeding mechanism according to claim 1.   The container with an air bleeding mechanism according to claim 1, wherein the dispensing valve is made of rubber or a thermoplastic elastomer.   The container with an air bleeding mechanism according to claim 1 or 2, wherein the protruding portion of the cap surrounds the periphery of the spout and seals the spout. The container with an air vent mechanism according to claim 1, wherein the protruding portion of the cap is closely fitted into the spout and seals the spout.

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