WO2015151260A1

WO2015151260A1 - Cap with check valve, pouring container comprising said cap with check valve, and production method for said cap with check valve

Info

Publication number: WO2015151260A1
Application number: PCT/JP2014/059865
Authority: WO
Inventors: 正典反本
Original assignee: 株式会社テクノクラーツ
Priority date: 2014-04-03
Filing date: 2014-04-03
Publication date: 2015-10-08
Also published as: WO2015151299A1; JPWO2015151299A1; JP6418615B2

Abstract

The purpose of the present invention is to provide: a cap with check valve, that has a check valve provided in the cap itself and is easy to produce; a pouring container comprising said cap with check valve; and a production method for said cap with check valve. This cap (40) with check valve comprises a discharge valve having a checking function, is attached to an opening (13) in a container main body (11) that houses contents, and comprises: a cap main body (41) attached to the opening (13) in the container main body (11) and comprising a pouring opening through which the contents are poured; a base (51) constituting the discharge valve and comprising a valve hole (52) through which the contents are caused to flow; and a film (61) constituting the discharge valve. The base (51) and the film (61) are attached to the cap main body (41) in a state in which the film (61) overlaps the base (51) so as to cover the valve hole (52), and the discharge valve is formed that has the valve hole (52) as an inlet, part of the base (51) overlapped by the film (61) as the valve seat, and the film (61) as the valve body.

Description

Cap with check valve, pouring container equipped with the cap with check valve, and method for producing the cap with check valve

The present invention relates to a cap with a check valve that can prevent intrusion of outside air into the container body, a pouring container provided with the check valve cap, and a method for manufacturing the cap with a check valve.

A check valve at the mouth of the container body as a dispensing container capable of dispensing liquid while preventing the oxidation of the liquid contained by preventing the outside air from entering the container body containing liquid such as soy sauce Various things have been developed. Check valves used for the dispensing container include those using balls and those using a rotatable plate.

Also, as a check valve used for the dispensing container, a check valve constructed by overlapping two valve bodies having valve holes at positions that do not overlap each other has been developed (for example, see Patent Document 1). Such a check valve is easy to manufacture and has good sealing properties.

JP 2011-111202 A

The dispensing container described in Patent Document 1 is configured on the premise that the assembly of the cap body, the check valve, and the container body is completed at the manufacturing stage, and is commercialized as a dispensing container. For this reason, it is not considered to commercialize a cap body with a check valve as a single unit. On the other hand, examples of the cap with a check valve include a cap with a check valve using a ball, but these have a complicated structure and increase the manufacturing cost.

An object of the present invention is to provide a cap with a check valve, which is provided with a check valve on the cap itself, easily poured into a product, a dispensing container provided with the cap with a check valve, and a method for manufacturing the cap with a check valve Is to provide.

The present invention is a cap with a check valve that is provided with a discharge valve having a check function and that is attached to the mouth of a container body that contains the contents, the contents attached to the mouth of the container body. A cap main body having a spout to be poured out, a base having a valve hole that circulates the contents, constituting the discharge valve, and a film constituting the discharge valve so as to cover the valve hole In a state where the film is stacked on the base, the base and the film are attached to the cap body, the valve hole is introduced, a part of the base on which the film is stacked is a valve seat, The discharge valve having a valve body is formed with a check valve cap.

In the cap with a check valve according to the present invention, the base is press-fitted and attached to the cap body.

In the cap with a check valve according to the present invention, the cap body and / or the base includes connection means for connecting to each other, and the base is attached to the cap body by the connection means. Features.

In the cap with a check valve according to the present invention, the connecting means is a locking means provided on the cap body and / or the base, for locking the base to the cap body. To do.

In the cap with a check valve according to the present invention, the connecting means is a female screw and a male screw provided on the cap body and the base.

In the cap with a check valve according to the present invention, the base is attached to the cap body by adhesion.

The cap with a check valve according to the present invention further includes a ring member, and the base member is interposed between the cap body and the upper surface of the base member on which the film is stacked. It is characterized by being attached to.

Further, in the cap with a check valve according to the present invention, the cap body further includes an intake hole for circulating outside air, the film further includes an intake valve body portion for opening and closing the intake hole, An intake valve having a check function in which a part of the cap body is a valve seat and the intake valve body portion of the film is a valve body is formed.

Also, the present invention is a dispensing container comprising the above-mentioned cap with a check valve and a container body.

Further, the present invention is a cap with a check valve, an inner container that contains contents, and to which the cap with a check valve is attached, an outer container that houses the inner container, and a lid for the outer container, An extraction container comprising: a ring cap including an intake passage for introducing outside air into a space between an inner container and the outer container; and an intake valve body film for opening and closing the intake passage.

The present invention also includes the cap with a check valve, an inner container that contains the contents and the cap with the check valve is attached, and an outer container that houses the inner container, the inner container and the outer container. And a suction port of the cap with the check valve communicates with each other via the intake valve.

In the dispensing container of the present invention, the inner container can be refilled with a new inner container, and at least the outer container is configured to be repeatedly usable.

Further, the present invention is a method for manufacturing the cap with a check valve, comprising a contact step of closely attaching the film to the upper surface of the base via a contact means, and the base of the base via the contact means In the manufacturing method of a cap with a check valve, the base is attached to the cap body in a state where the film is in close contact with an upper surface.

Further, in the method for manufacturing a cap with a check valve according to the present invention, the contact means is a suction means for sucking outside air from a lower end of the valve hole of the base, and the film is stacked on an upper surface of the base. Then, the suction means sucks outside air from the lower end of the valve hole of the base, thereby bringing the film into close contact with the upper surface of the base.

In the method for manufacturing a cap with a check valve according to the present invention, the contact means is a liquid, and the liquid is interposed between the upper surface of the base and the film, whereby the upper surface of the base is It is characterized by sticking the film.

In the method for manufacturing a cap with a check valve according to the present invention, the contact means is a charging means for charging the upper surface of the base and / or the film with static electricity, and the base of the base via the charging means. The upper surface and / or the film is charged with static electricity, and the film is adhered to the upper surface of the base by overlapping the film on the upper surface of the base.

Since the cap with a check valve of the present invention is configured by attaching a base having a film superimposed on the top surface to the cap body, the cap with a check valve can be easily obtained. Such a cap with a check valve is excellent in convenience because a commercially available container body can be attached without any modification. Moreover, the cap with a check valve can be easily obtained by using the method for producing a cap with a check valve of the present invention.

It is a perspective view which shows the structure of the extraction container 1 of 1st Embodiment of this invention. It is principal part sectional drawing of the extraction container 1 of FIG. It is principal part sectional drawing which shows the manufacture point of the extraction container 1 of FIG. It is a flowchart which shows the manufacturing method of the extraction container 1 of FIG. It is principal part sectional drawing which shows the example of attachment of the cap 40 with a non-return valve of FIG. It is a perspective view which shows the structure of the extraction container 2 of 2nd Embodiment of this invention. It is a perspective view of the cap main body 82 of FIG. It is a perspective view of the base 83 of FIG. It is principal part sectional drawing of the extraction container 2 of FIG. It is sectional drawing of the cap 101 with a non-return valve of 3rd Embodiment of this invention. It is sectional drawing of the cap 111 with a non-return valve of 4th Embodiment of this invention. It is sectional drawing of the cap 121 with a non-return valve of 5th Embodiment of this invention. It is a figure which shows the structure of the cap 131 with a non-return valve of 6th Embodiment of this invention. It is a figure which shows the structure of the cap 141 with a non-return valve of 7th Embodiment of this invention. It is sectional drawing of the cap 151 with a non-return valve of 8th Embodiment of this invention. It is a perspective view which shows the structure of the cap 161 with a non-return valve of 9th Embodiment of this invention. It is sectional drawing of the cap 161 with a non-return valve of FIG. It is sectional drawing of the cap 171 with a check valve of 10th Embodiment of this invention. It is a perspective view which shows the structure of the cap 181 with a non-return valve of 11th Embodiment of this invention. FIG. 20 is a perspective view of the cap body 182 of FIG. 19 as viewed from below.

FIG. 1 is a perspective view showing a configuration of a dispensing container 1 according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view of a main part of the dispensing container 1 of FIG. FIG. 3 is a cross-sectional view of an essential part showing a manufacturing procedure of the dispensing container 1 of FIG. FIG. 4 is a flowchart showing a method for manufacturing the dispensing container 1 of FIG. FIG. 5 is a cross-sectional view of the main part showing an example of attachment of the check valve cap 40 of FIG. 2 (a) and 2 (b) are cross-sectional views of the main part of the dispensing container 1 when viewed from different angles of 90 degrees. In FIG. 2, the film body 18 of the inner container 11 is omitted.

The dispensing container 1 according to the first embodiment of the present invention is a dispensing container that can contain contents and can dispense the contents while preventing oxidation of the contained contents. , A ring container 31, a double container body composed of an intake valve body film 38, and a check valve cap 40 attached to the mouth portion (spout 12) of the inner container 11. The cap 40 includes a discharge valve 71 having a check function, and the discharge valve 71 discharges the contents while preventing the outside air from entering the inner container 11 and preventing the contents from being oxidized.

The container body includes an inner container 11 that contains the contents, an outer container 21 that contains the inner container 11, a ring cap 31 that is used as a lid for the outer container 21, and a space between the inner container 11 and the outer container 21. It is a double container comprised with the intake valve body film 38 used as the valve body of the intake valve 75 which controls the entrance / exit of the air of the part 20, and by contracting the outer container 21, the inner container 11 and the outer container 21 The inner container 11 is contracted through the air in the space 20 between the two, and the contents are discharged.

Since the inner container 11 contracts as the contents are discharged, if the outer container 21 has a shape that can stand on its own, the container body can always stand on its own regardless of the shape of the inner container 11 and is easy to use. However, the outer container 21 is not limited to a shape that can be self-supporting, and a container that is not self-supporting can be used depending on the application.

The inner container 11 is a pouch container formed by laminating the film body 18 and bonding the peripheral edge part by heat welding or the like, and a spout 12 serving as an entrance of the contents is attached to the upper part and attached. The inner container 11 is not limited to a specific one, and for example, a commercially available container with a spout (not shown) can be used. The shape of the inner container 11 is not limited to a specific shape as long as it can be accommodated in the outer container 21. Moreover, the location where the spout 12 is attached is not limited to a specific location.

In addition to this, for example, the inner container 11 is a fold that shrinks while the contents shown in FIG. 1 to FIG. 17 described in the international application number PCT / JP2013 / 065781 filed by the applicant are applied. The container body is forcibly depressurized by the shape recoverability shown in FIGS. 1 to 13 described in Japanese Patent Application Laid-Open No. 2013-227059 filed by the present applicant, and the container body provided with a line. The container main body (not shown) provided with a bellows can also be used suitably.

The material of the film body 18 is not limited to a specific material. Depending on the contents to be stored, thermal stability, prevention of deterioration by ultraviolet rays, antistatic, antioxidant, water vapor barrier, other gas barrier properties (gas barrier properties), aroma storage properties, light shielding properties, etc. are required. In such a case, the inner container 11 may be appropriately formed using a material suitable for the required specifications.

Plastics, composites, and laminates with excellent oxygen barrier properties include polyamides, polyvinyl alcohol, ethylene / vinyl alcohol copolymer (EVOH), polyvinylidene chloride (PVDC), polyvinylidene chloride-methyl acrylate copolymer, PET , Nanocomposite coated PET, silica coated PET, alumina coated PET, stretched polypropylene / aluminum foil / low density polyethylene laminate, PET / ethylene vinyl alcohol copolymer / low density polyethylene laminate, polyvinylidene chloride coated polypropylene, poly Examples include vinylidene chloride coated PET. However, plastics, synthetic resins, composite materials, laminated materials, and materials other than these, which are excellent in oxygen barrier properties, and materials other than plastics and synthetic resins may be used.

Examples of plastics, composites, and laminates that have excellent water vapor barrier properties include high-density polyethylene, low-density polyethylene, polyvinylidene chloride-coated stretched polypropylene, and polyvinylidene chloride-coated PET. However, plastics, synthetic resins, composite materials, laminated materials, and materials other than these, which are excellent in water vapor barrier properties, and materials other than plastics and synthetic resins may be used.

Plastics, composites, and laminates with excellent oxygen barrier properties and water vapor barrier properties include stretched polypropylene / aluminum foil / low density polyethylene laminate, ceramic vapor-deposited PET / low density polyethylene laminate, polyvinylidene chloride coated stretched polypropylene, poly Examples include vinylidene chloride coated PET. However, plastics, synthetic resins, composite materials, laminated materials, and materials other than these, which are excellent in oxygen barrier properties and water vapor barrier properties, may be used.

Plastics, composites and laminates with excellent aroma storage stability include ethylene vinyl alcohol copolymer, PET, PET / low density polyethylene, stretched polypropylene / aluminum foil / low density polyethylene laminate, PET / ethylene vinyl alcohol copolymer. / Low density polyethylene laminate, ceramic vapor deposited PET, ceramic vapor deposited PET / low density polyethylene laminate. However, materials other than these, such as plastics, synthetic resins, composite materials, laminated materials, and materials other than plastics and synthetic resins, which are excellent in storability, may be used.

Examples of plastics, composites, and laminates that have excellent ultraviolet blocking properties include titanium oxide-containing polypropylene, iron oxide / polypropylene laminates, and carbon black / polypropylene laminates. However, other than these, plastics, synthetic resins, composite materials, laminates, and materials other than plastics and synthetic resins, which have excellent ultraviolet blocking properties, may be used.

Examples of plastics, composites, and laminates that are excellent in non-charging properties include ordinary cellophane, moisture-proof cellophane, and ethylene / vinyl alcohol copolymer. However, plastics, synthetic resins, composite materials, laminated materials, and materials other than these, which are excellent in non-charging properties, may be used. In addition, a plastic, a synthetic resin, a composite material, a laminated material, or the like to which an antistatic agent such as a surfactant, carbon, or metal oxide is added can also be used.

Plastics, composites, and laminates with excellent light-shielding properties include ordinary cellophane / polyethylene / aluminum foil / polyethylene laminate, biaxially oriented polypropylene / polyethylene / aluminum foil / polyethylene laminate, PET / polyethylene / aluminum foil / polyethylene laminate. PET / aluminum vacuum deposition / polyethylene laminate, biaxially oriented polypropylene / aluminum vacuum deposition / polyethylene laminate, PET / aluminum foil / unstretched polypropylene laminate, biaxially oriented nylon / aluminum foil / unstretched polypropylene laminate Is mentioned. However, plastics, synthetic resins, composite materials, laminated materials, and materials other than these, which are excellent in light-shielding properties, may be used.

The contents that can be accommodated in the inner container 11 are not limited to a specific fluid, and a wide variety of contents can be accommodated and poured out. The contents include a relatively low viscosity liquid such as soy sauce, a viscous fluid such as mayonnaise, a gas such as sampling gas, a granular material such as wheat flour, a slurry solution, and a suspension in which solids are suspended in the liquid. Examples include turbid solutions. Typical soy sauce has a viscosity of about 5 to 6 mPa · s at a temperature of 20 ° C., and mayonnaise has a viscosity of about 2 to 100 Pa · s.

The spout 12 is a substantially cylindrical member. The spout 12 includes a male screw 14 into which a cap 40 with a check valve is screwed onto the outer peripheral surface of the mouth portion 13 that is a tip portion, and includes an upper flange 15 and a lower flange 16 on the outer peripheral surface of the center portion. A bonding portion 17 bonded to the film body 18 is provided below. In addition, the spout 12 is not limited to a cylindrical body, For example, a square cylinder etc. may be sufficient. Moreover, as the spout 12, the well-known spout of a container with a spout (illustration omitted) can also be used.

The material of the spout 12 is not limited to a specific material, and examples of the material include synthetic resin, metal, glass, carbon, sintered material, wood, and the like. These composite materials, vapor deposition, coating, A material whose surface is coated with metal by plating, metal foil, or the like may be used, and it can be appropriately selected and used depending on the application, contents and the like. For example, in order to prevent oxygen from entering the inner container 11 through the spout 12, the spout 12 may be formed of a plastic, a composite material, a laminated material, or other material having excellent oxygen barrier properties and air barrier properties. Since these materials are the same as those described above as the material of the film body 18, a description thereof will be omitted.

The upper flange 15 and the lower flange 16 are film bodies when the spout 12 is attached to the inner container 11, gripped or supported when the contents are filled or transported, and when the spout 12 is attached to the inner container 11. 18 and the like. The shape and number of the upper flange 15 and the lower flange 16 are not limited to specific ones.

The adhesive portion 17 has a spindle shape in a bottom view so that the film body 18 can be easily and reliably adhered and adhered. The shape of the bonding portion 17 is not limited to this, and may be, for example, an oval shape or a boat shape in a bottom view, and may be provided with a pair of left and right plate-like protrusions (not shown) for bonding. Moreover, as long as the film body 18 can be adhered and adhered in an airtight manner, it may be circular or rectangular in bottom view.

The outer container 21 is preferably a bottomed cylindrical body having an open upper end, and it is preferable that the outer container 21 can be easily contracted and deformed, has a shape restoring property, and can stand by itself. The outer container 21 includes a male screw 23 into which the ring cap 31 is screwed onto the outer peripheral surface of the upper end portion. The outer container 21 is not limited to a specific shape as long as it can accommodate the inner container 11.

The material of the outer container 21 is not limited to a specific material like the inner container 11. Depending on the contents stored in the inner container 11, thermal stability, prevention of deterioration by ultraviolet rays, antistatic, antioxidation, water vapor barrier, other gas barrier properties (gas barrier properties), fragrance storage properties, light shielding properties, etc. are required. The In such a case, a material suitable for the required specifications may be used as appropriate. This point can be considered similarly to the inner container 11, and the above-described materials can be used.

The ring cap 31 is used as a lid of the outer container 21 and a connection means between the inner container 11 and the outer container 21. The ring cap 31 is a cylindrical body having an insertion hole 32 at the top, and is provided with an intake passage 33 serving as a flow path for outside air at the top, and seals the top ceiling surface in close contact with the upper end of the outer container 21. A seal cylinder 36 is provided, and a female screw 37 that is screwed into the male screw 23 of the outer container 21 is provided on the inner peripheral surface of the cylinder portion.

The material of the ring cap 31 can be considered in the same manner as the outer container 21, and the materials described above can be used. For example, in order to prevent oxygen from entering the inner container 11 through the ring cap 31, the ring cap may be made of plastic, composite material, laminated material, or other material having excellent oxygen barrier properties and air barrier properties, similar to the inner container 11 and the like. 31 may be formed.

The insertion hole 32 is formed through the center of the top so that the mouth portion 13 of the spout 12 can be inserted and the upper flange 15 and a stopper 48 of the cap body 41 described later are not inserted.

The intake passage 33 is formed through two places at the top so as to introduce the outside air into the space 20 between the inner container 11 and the outer container 21. The number of intake passages 33 is not limited to this. Further, the shape and arrangement of the intake passage 33 are not limited to a specific one.

The sealing cylinder 36 seals the upper end of the outer container 21 over the entire circumference, but can prevent the outflow of air to the extent that the contents can be discharged from the inner container 11 when the outer container 21 contracts. Any leakage is acceptable.

The intake valve element film 38 has a ring shape, is placed on the upper surface of the upper flange 15 of the spout 12, and is sandwiched and attached between the upper surface of the upper flange 15 and the ring cap 31. The intake valve body film 38 forms an intake valve 75 having a check function that opens and closes the intake passage 33 of the ring cap 31. The shape and arrangement of the intake valve element film 38 are not limited to a specific one, and it is sufficient that at least the intake passage 33 can be opened and closed.

The intake valve 75 opens and closes when the intake valve body film 38 moves up and down due to a pressure difference between the space 20 between the inner container 11 and the outer container 21 and the outside air. The intake valve 75 prevents the outflow of air from the space 20 between the inner container 11 and the outer container 21 when the outer container 21 contracts, and allows the outside air to flow between the inner container 11 and the outer container 21 when the shape of the outer container 21 is restored. It introduces into the space part 20 between. The intake valve 75 only needs to be able to prevent the outflow of air to the extent that the contents can be discharged from the inner container 11 when the outer container 21 contracts, and some leakage is allowed.

The cap 40 with a check valve includes a cap body 41 attached to the mouth portion 13 of the spout 12, a base 51 having a valve hole 52 and press-fitted to the cap body 41, and a base so as to cover the valve hole 52. And a discharge valve 71 having the valve hole 52 as an inlet, the film 61 as a valve body, and the upper surface of the base 51 as a valve seat, and is attached to the mouth portion 13 of the spout 12. The contents are poured out while preventing the outside air from entering the inner container 11.

The cap body 41 is a cylindrical body with a top, has a spout 42 for pouring the contents at the top, has a pressing surface 44 for the film 61 on the top ceiling surface 43, and has an external thread for the spout 12 on the inner peripheral surface of the cylinder portion. 14, and a stopper 48 for fixing the inner container 11 and the intake valve body film 38 to the outer container 21 at the lower end of the cylindrical part. A cap 49 with a hinge that opens and closes the spout 42 is formed at the top of the cap body 41. The cap body 41 is not limited to a cylindrical body, and may be, for example, a rectangular tube or the like, and the shape can be determined in consideration of the shape or design of the spout 12 or the ring cap 31.

The material of the cap body 41 is not limited to a specific material, and examples of the material include synthetic resin materials such as polyethylene, metals, glass, carbon materials, sintered materials, and wood, and these composite materials Alternatively, it can be formed of a material appropriately selected according to the use, contents, etc., such as a material whose surface is coated with metal by vapor deposition, coating, plating, metal foil, or the like. For example, in order to prevent oxygen from entering the inner container 11 through the cap body 41, the cap body is made of plastic, composite material, laminated material, or other material having excellent oxygen barrier properties and air barrier properties, like the inner container 11 and the like. 41 may be formed.

The shape of the spout 42 is not limited to a specific shape, and can be determined as appropriate in consideration of ease of pouring and design. Further, when the spout 42 is disposed on the opposite side of the center of the valve hole 52 of the base 51 when the base 51 is attached to the cap body 41, the contents mixed in when filling the contents, etc. The air or gas in the vessel 11 is preferably discharged to the outside because it moves toward the valve hole 52 when the contents are poured out by tilting the dispensing container 1. However, it is not limited to this.

The pressing surface 44 is a lower surface of a step formed on the peripheral edge of the ceiling surface 43, and the pressing surface 44 is formed with a convex sealing means 45 over the entire circumference. When the base 51 is attached to the cap main body 41, the sealing means 45 seals in close contact with the upper surfaces of the base 51 and the film 61. If the pressing surface 44 and the upper surface of the base 51 and the film 61 can be brought into close contact with each other without using the sealing means 45 and sufficient sealing can be performed, the sealing means 45 may not be provided.

The stopper 48 contacts the periphery of the insertion hole 32 on the top surface of the top portion of the ring cap 31 when the cap 40 with a check valve is attached to the mouth portion 13 of the spout 12, and the stopper 48 and the upper flange 15 of the spout 12 Thus, the top of the ring cap 31 and the intake valve element film 38 are sandwiched. As a result, the inner container 11 and the intake valve body film 38 are fixed to the outer container 21 via the ring cap 31.

The position of the stopper 48 (the height of the cylinder portion of the cap body 41) is determined from the contact surface of the stopper 48 with the ring cap 31 when the cap 40 with a check valve is attached to the mouth portion 13 of the spout 12. The distance to the upper surface of the 12 upper flanges 15 is determined to be substantially the same as the top of the ring cap 31 and the thickness of the intake valve body film 38. The shape of the stopper 48 may be determined as appropriate in accordance with the shape of the portion where the ring cap 31 abuts.

The base 51 has a shape in which a ring-shaped seal cylinder 53 is formed from the lower surface of the disc body, and includes a valve hole 52 serving as an inlet of the discharge valve 71 in the disc portion. The base 51 is formed so that its diameter is slightly larger than the inner diameter of the cylindrical portion of the cap main body 41 so as not to come off after being attached to the cap main body 41, and is press-fitted into the cylindrical portion of the cap main body 41.

The material of the base 51 is not limited to a specific material. Examples of the material include synthetic resin materials such as polyethylene, metal, glass, carbon material, sintered material, wood, and the like. Alternatively, it can be formed of a material appropriately selected according to the use, contents, etc., such as a material whose surface is coated with metal by vapor deposition, coating, plating, metal foil, or the like. For example, in order to prevent oxygen from entering the inner container 11 through the base 51, the base is made of plastic, composite material, laminated material, or other material having excellent oxygen barrier properties and air barrier properties, like the inner container 11. 51 may be formed.

The valve hole 52 is drilled so as to be disposed at one or more locations in the disc part and inside the seal cylinder 53. The shape, size, and number of the valve holes 52 are not limited to specific ones. The size of the spout 42 of the cap body 41, the size of the discharge port 72 of the discharge valve 71, which will be described later, It is determined according to the type (viscosity).

The seal cylinder 53 is formed in a ring shape from the lower surface of the base 51, and closes to the inner peripheral surface of the mouth portion 13 of the spout 12 when the cap 40 with a check valve is attached to the mouth portion 13 of the spout 12. And seal hermetically. The shape of the seal cylinder 53 is not limited to a specific shape.

Further, instead of the seal cylinder 53, a convex protrusion (not shown) or the like that abuts on the front end surface of the mouth portion 13 of the spout 12 may be formed on the lower surface of the base 51 for sealing. If the lower surface of 51 and the front end surface of the mouth portion 13 of the spout 12 are in close contact and can be sufficiently sealed, it is not necessary to provide a sealing means such as the seal cylinder 53.

The film 61 is a thin film and includes a thin film having flexibility, flexibility and stretchability. The thickness of the film 61 is not particularly limited, and can be appropriately selected and used according to the application, contents, material, and the like. However, it is preferable that the film 61 is thin from the viewpoint of sealing performance between the upper surface of the film 61 and the base 51 and the sealing means 45 of the cap body 41. In this case, it is needless to say that the film 61 functions as a valve body of the discharge valve 71 and does not need to be damaged when contacting the sealing means 45 of the cap body 41. As an example of the thickness of the film 61, when the content is a liquid having a relatively low viscosity such as soy sauce (general soy sauce), it is about 20 to 30 μm with a polyethylene film. However, it is not limited to this value.

As a material of the film 61, a synthetic resin film such as polyethylene, a synthetic resin stretch film, a thin metal film having flexibility and / or flexibility, a carbon film, a glass film, etc. However, the film 61 is not limited to a specific material, and can be appropriately selected and used according to the application, contents, and the like. For example, in order to prevent oxygen from entering the inner container 11 through the film 61, plastics, composite materials, laminated materials and other materials having excellent oxygen barrier properties and air barrier properties can be used as in the case of the inner container 11 and the like. Good. When oxygen barrier properties and water vapor barrier properties are required at the same time, a multilayer film of a synthetic resin material that prevents air from entering and exiting and a synthetic resin material that prevents drying due to evaporation of moisture, and other oxygen barrier properties and water vapor barrier properties. Plastics, composite materials, laminated materials, etc. that are excellent in properties can be suitably used. However, since the film 61 is in a thin film shape, it is easier for gas to pass through compared to the inner container 11 or the like, so it is necessary to select a material in consideration of this point.

The film 61 has an arcuate partial circular shape having substantially the same diameter as the base 51, and is overlaid on the upper surface of the base 51 so as to cover the valve holes 52 with the outer edges of the respective arc portions aligned.

The shape and arrangement of the film 61 are not limited to a specific one, and the valve hole 52 is covered with the upper surface of the base 51 and the sealing means 45 of the main body of the cap 41 so that the valve hole 52 can be opened and closed. Any shape and arrangement may be used. As the film 61, for example, a circular film provided with discharge holes (not shown) may be used. At this time, the film 61 is arranged so that the discharge holes and the valve holes 52 do not overlap. Moreover, the linear one end of the film 61 which forms the discharge outlet 72 mentioned later may be formed in the wave shape, for example, and the cut | notch etc. may enter vertically. However, the shape of the film 61 should be determined in consideration of the discharge performance and the seal performance of the discharge valve 71.

Next, a method for manufacturing the cap 40 with a check valve of the dispensing container 1 according to this embodiment will be described. The manufacturing method of the cap 40 with a check valve includes a mounting step S1 for mounting the base 51 on the receiving base 100, an adhesion step S2 in which the film 61 is stacked on the upper surface of the base 51, and the base 51 is attached to the cap body. It consists of press-fitting step S3 for press-fitting into 41.

In the mounting step S1, the base 51 is mounted on the receiving base 100. For the cradle 100, for example, a cylindrical body into which the seal cylinder 53 of the base 51 is fitted can be used. When such a cradle 100 is used, the base 51 can be stably fixed. Further, in order to position the base 51 in the circumferential direction, the base 100 and / or the base 51 are provided with unevenness, for example, or the position of the valve hole 52 of the base 51 is shifted from the center. Positioning means such as providing a pin (not shown) to be inserted into the valve hole 52 in the base 100 may be added.

In the adhesion step S2, the film 61 is overlaid on the upper surface of the base 51 with the outer edge of the arc portion aligned. At this time, by using a close contact means (not shown) for bringing the film 61 into close contact with the upper surface of the base 51, the film 61 is prevented from being displaced, wrinkled or torn.

As an adhesion method using the adhesion means, for example, the film 61 is configured such that the inside of the receiving base 100 is set to a negative pressure by using suction means such as a vacuum pump (not shown) and is sucked from the valve hole 52 of the base 51. The film 61 is made to adhere to the upper surface of the base 51 by attaching a liquid such as water to the upper surface of the base 51 and / or the film 61 and superimposing the film 61 on the upper surface of the base 51. A method of bringing the film 61 into close contact with the upper surface of the base 51 and / or a method of charging the static electricity to the upper surface of the base 51 and / or the film 61 by a charging means such as corona discharge and the film 61 being brought into close contact with the upper surface of the base 51 can be used.

In the press-fitting step S3, the cap body 41 is pushed over the base 51 so that the upper surface of the base 51 and the film 61 is in close contact with the sealing means 45 of the cap body 41.

When the cap body 41 is press-fitted, the arc peripheral edge of the film 61 is fixed to the sealing means 45, and a discharge port 72 serving as the outlet of the discharge valve 71 is formed at the linear end of the film 61 that does not contact the sealing means 45. Is done. Further, in the film 61, a portion located inside the sealing means 45 becomes a valve body of the discharge valve 71, and is in close contact with the upper surface of the base 51 in a detachable manner.

In the press-fitting step S3, it is sufficient that the cap main body 41 is press-fitted until at least the film 61 is fixed in contact with the sealing means 45 of the cap main body 41. The sealing means 45, the base 51, and the upper surface of the film 61 are not necessarily required. And the upper surface of the base 51 at the contact portion with the sealing means 45 and the film 61 need not be in close contact with each other. In this case, when the cap 40 with a check valve is attached to the spout 12, the base 51 is pushed by the mouth portion 13 of the spout 12, so that the sealing means 45, the base 51 and the upper surface of the film 61 are , The sealing means 45 is sealed with the base 51 and the upper surface of the film 61, and the upper surface of the base 51 and the film 61 are sealed at the contact portion with the sealing means 45.

When the contents are liquid, the sealing performance between the sealing means 45, the base 51 and the upper surface of the film 61, and the sealing performance between the base 51 and the film 61 at the contact portion with the sealing means 45 should be at least liquid-tight. For example, the leakage of the contents to the space 20 between the inner container 11 and the outer container 21 can be prevented. The intrusion of outside air into the inner container 11 is caused by the action of negative pressure in the inner container 11 and the base 51 due to the capillary suction force of the contents interposed in the gap between the upper surface of the base 51 and the film 61 as described later. This is prevented by the adhesion of the film 61 to the upper surface. In addition, when the contents are gas, airtightness is required.

The above manufacturing method is a preferred example, and the manufacturing method of the check valve cap 40 is not limited to a specific method. However, in order for the discharge valve 71 of the cap 40 with a check valve to normally exhibit a check function, at least when the cap 40 with a check valve is attached to the spout 12, the film 61 is wrinkled or torn. The sealing means 45, the base 51 and the upper surface of the film 61 are in close contact, the seal between the sealing means 45, the base 51 and the upper surface of the film 61, and the upper surface of the base 51 at the contact portion with the sealing means 45 A manufacturing method in which sealing with the film 61 is performed and the valve body portion of the film 61 is in close contact with the upper surface of the base 51 in a peelable manner should be used.

In the present invention, the state in which the discharge valve 71 is formed means that the sealing means 45, the base 51, and the film 61 are in the stage where the base 51 and the film 61 are attached to the cap body 41 as described above. The seal between the upper surface and the upper surface of the base 51 at the contact portion with the sealing means 45 and the film 61 are sealed, and the discharge valve 71 is not limited to a state in which the check function is normally exhibited. When the attached cap 40 is attached to the spout 12 (the mouth of the container main body), these seals are performed, and the discharge valve 71 normally includes a state in which the check function is exhibited.

In the dispensing container 1, the inner container 11 is filled with the contents, the inner container 11 is accommodated in the outer container 21, the intake valve body film 38 is placed on the upper flange 15 of the spout 12, and the ring cap 31 is placed in the outer container. Then, the cap 40 with a check valve is screwed onto the spout 12. In addition, the manufacturing method of the extraction container 1 is not limited to this, For example, what is necessary is just to perform filling of the content at the optimal timing suitably.

The cap 40 with check valve and the spout 12 may be provided with locking claws (not shown) that are locked together so that they cannot be easily removed once screwed together. By preventing the cap 40 with the check valve and the spout 12 from being easily removed, it is possible to prevent the contents from being oxidized due to the removal during use or the entry of foreign substances by a third party.

In addition, the dispensing container 1 is provided with an outer container 21, a ring cap 31, an intake valve body film 38, and a check valve by refilling only the inner container 11 with a new one filled with the contents after the contents are completely poured out. The cap 40 can be used repeatedly. In this case, a thin film-like sealing material (not shown) is adhered to the mouth portion 13 of the spout 12 to seal the mouth portion 13, and the sealing material is broken by the seal cylinder 53 of the check valve cap 40. By opening the package, the contents can be prevented from being oxidized during refilling.

In addition, as a method for preventing the oxidation of the contents at the time of refilling without using a sealant or the like, the inner container 11, the ring cap 31, the intake valve body film 38, and the check valve cap 40 are assembled. It is also possible to use a method of refilling the outer container 21. In addition, the selection of what is repeatedly used and what is to be refilled may be appropriately determined according to the application.

Next, the method of use will be illustrated by taking as an example the case where the contents are soy sauce and the dispensing container 1 is used as a soy sauce bottle for antioxidant. After attaching the cap 40 with a check valve to the spout 12, the lid 49 is opened, and the outer container 21 is pressed and contracted with the dispensing container 1 facing upward. When the outer container 21 is contracted, the space 20 between the outer container 21 and the inner container 11 is pressurized, the intake valve 75 is closed, and the inner container 11 is pressurized and contracted. When the inner container 11 contracts, the film 61 rises and the discharge valve 71 opens, and the air or gas remaining in the inner container 11 is discharged. Thereby, the inside of the inner container 11 is filled with soy sauce, and air is prevented from entering by the discharge valve 71, so that the soy sauce is not oxidized.

When pouring out the soy sauce, when the pouring container 1 is tilted downward and the outer container 21 is pressed and contracted, the inner container 11 contracts and the soy sauce flows into the discharge valve 71 from the valve hole 52, and the film 61 rises. Then, the discharge valve 71 is opened, soy sauce is discharged from the discharge port 72 and poured from the spout 42.

When the contraction of the outer container 21 is stopped and the dispensing container 1 is returned upward, due to the negative pressure in the inner container 11 and the capillary suction force of soy sauce interposed in the gap between the upper surface of the base 51 and the film 61 The film 61 quickly comes into close contact with the upper surface of the base 51 and the discharge valve 71 is closed. For this reason, air does not enter the inner container 11 after the valve is closed. Further, due to the shape recoverability of the outer container 21, the space 20 between the outer container 21 and the inner container 11 becomes negative pressure, the intake valve 75 is opened, and the space between the outer container 21 and the inner container 11 is opened. Outside air flows into 20 and the outer container 21 returns to its original shape.

As described above, the cap 40 with a check valve of the dispensing container 1 of the present embodiment is configured by attaching the base 51 to the cap body 41 with the film 61 overlapped on the upper surface of the base 51. Easy. For this reason, not only the container body used in the present embodiment but also, for example, when used for a commercially available container body, the shape of the cylindrical portion of the cap body 41 is changed in accordance with the shape of the mouth of the container body. By doing so, it is possible to apply a commercially available container body with no modification, so that it is excellent in convenience.

In addition, in the pouring container 1 of the present embodiment, screwing is used for the connection between the cap 40 with the check valve and the spout 12, but this is not a limitation, and fitting using a snap fit or the like, It is also possible to connect the cap 40 with a check valve and the spout 12 by a method such as press fitting or adhesion. The same applies to the connection between the outer container 21 and the ring cap 31.

Also, the method of attaching the cap body 41 and the base 51 is not limited to press-fitting. For example, the cap 101 with a check valve according to a third embodiment to be described later, and the cap 111 with a check valve according to a fourth embodiment. As described above, a method of locking using the locking means 103, a method of screwing, bonding, or the like can be used.

Further, since the mouth portion 13 of the spout 12 is sealed by the seal cylinder 53 of the cap 40 with a check valve, it does not necessarily have to be in contact with the lower surface of the base 51 as shown in FIG.

FIG. 6 is a perspective view showing the configuration of the dispensing container 2 of the second embodiment of the present invention. FIG. 7 is a perspective view of the cap body 82 of FIG. FIG. 8 is a perspective view of the base 83 of FIG. FIG. 9 is a cross-sectional view of a main part of the dispensing container 2 of FIG. The same components as those of the dispensing container 1 of the first embodiment shown in FIG. 1 and FIG. In FIG. 9, the film body 18 of the inner container 11 is omitted.

The dispensing container 2 of the present embodiment has the same basic configuration as the dispensing container 1 of the first embodiment, but the film 61 serves as both the valve body of the discharge valve 71 and the valve body of the intake valve 75. Accordingly, the extraction container 2 is different from that of the extraction container 1 of the first embodiment in the structure of the ring cap 81, the cap body 82, and the base 83, and does not have the intake valve body film 38. Moreover, in the extraction container 2 of this embodiment, the ring cap 81 and the cap main body 82 are connected.

The ring cap 81 is formed with a connecting portion 91 that protrudes from the outer edge portion of the insertion hole 32 and is connected to the lower end portion of the cap main body 82. A fitting groove 92 for fitting the portion 94 is formed. The ring cap 81 does not have an intake passage. However, it is also possible to form an extraction container (not shown) provided with an intake passage (not shown) in the ring cap 81 and provided with an intake valve element film (not shown) for opening and closing the intake passage.

The cap body 82 includes an intake hole 93 that is formed in a part of the top portion and serves as an inlet of the intake valve 75, and a fitting convex portion that fits into the fitting groove 92 of the ring cap 81 at the lower end portion of the outer peripheral surface of the cylindrical portion. 94, and a positioning groove 95 serving as a positioning means in the circumferential direction of the base 83 with a certain width in the vertical direction is provided in a part of the inner peripheral surface of the cylindrical portion. The positioning groove 95 also serves as an intake path for introducing outside air from the intake hole 93 to the space 20 between the outer container 21 and the inner container 11. Furthermore, the position of the positioning groove 95 is preferably determined so that the spout 42 of the cap body 82 and the valve hole 52 of the base 83 are arranged on the opposite sides with respect to the center.

The air intake hole 93 is disposed outside the sealing means 45 in a plan view so as to introduce outside air into the space 20 between the outer container 21 and the inner container 11. The shape and the number of the intake holes 93 are not limited to a specific one, and may be provided at a plurality of locations, for example, like a cap 181 with a check valve according to an eleventh embodiment described later.

The base 83 has a step 96 formed on the upper surface, and a positioning piece 97 that fits into the positioning groove 95 of the cap body 82 is formed on the outer peripheral surface. The shape of the positioning piece 97 is not limited to a specific shape, but the positioning groove 95 of the cap body 82 is not closed so that outside air can be introduced into the space 20 between the outer container 21 and the inner container 11. It needs to be in shape.

In the cap 80 with a check valve of the dispensing container 2 of the present embodiment, when the film 61 is overlaid on the upper surface of the base 83, the stepped portion 96 is formed on the upper surface of the base 83, so that the peripheral edge of the film 61 is the base. It will be in the state which floated freely without touching the upper surface of 83. In the dispensing container 2 of the present embodiment, the portion of the film 61 that contacts the upper surface of the base 83 becomes the discharge valve body portion 62 that serves as the valve body of the discharge valve 71, and one peripheral portion that does not contact the upper surface of the base 83. The portion serves as an intake valve body 63 that serves as a valve body of the intake valve 75.

When the base 83 on which the film 61 is stacked is press-fitted into the cap main body 82, the film 61 is pressed by the sealing means 45 of the cap main body 82, and the discharge valve is similar to the check valve cap 40 of the dispensing container 1 of the first embodiment. 71 is formed, and the intake valve body 63 of the film 61 covers the intake hole 93 of the cap body 82 so as to be openable and closable, thereby forming the intake valve 75. In addition, since the manufacturing method of the cap 80 with a non-return valve of the extraction container 2 of this embodiment is the same as that of the cap 40 with a non-return valve of the extraction container 1 of 1st Embodiment, description is abbreviate | omitted.

When the cap 80 with a check valve is attached to the mouth portion 13 of the spout 12 of the inner container 11, is connected to the ring cap 81, and the outer container 21 is attached to the ring cap 81, the outer container 21 and the inner container 11 are A flow path of outside air to the space portion 20 is formed.

As described above, in the dispensing container 2 of the present embodiment, since the film 61 also serves as the valve body of the discharge valve 71 and the intake valve 75, when the intake valve body film 38 is used, or as the intake valve 75, the other reverse Compared with the case where a stop valve is used, material cost and manufacturing cost can be reduced. In addition, since both the discharge valve 71 and the intake valve 75 are provided in the check valve cap 80, for example, when using an existing container that is commercially available as a container body, an intake hole (intake passage) or an intake valve is provided in the container body. There is no need to provide a new one.

In addition, the connection method of the ring cap 81 and the cap main body 82 is not limited to a specific method, For example, you may employ | adopt the method using a screw | thread, a snap fit, etc., adhesion | attachment, etc.

Also, the method for connecting the outer container 21 and the ring cap 31, the method for connecting the spout 12 and the cap 80 with check valve, and the method for attaching the cap body 82 and the base 83 are also the dispensing container 1 of the first embodiment. Similarly to the above, it is not limited to a specific method.

The positioning method of the cap body 82 and the base 83 is not limited to a specific method. For example, the cap 131 with a check valve according to a sixth embodiment and the cap with a check valve according to a seventh embodiment which will be described later. 141 may be used.

Also in the dispensing container 2 of the present embodiment, as with the dispensing container 1 of the first embodiment, after the content has been completely poured out, only the inner container 11 or the inner container 11 and another member are connected in advance. It is possible to refill the outer container 21 for use.

FIG. 10 is a cross-sectional view of a cap 101 with a check valve according to a third embodiment of the present invention. The same components as those of the cap 40 with a check valve of the dispensing container 1 of the first embodiment shown in FIG. 1 and FIG. The cap 101 with a check valve of the present embodiment has the same basic configuration as the cap 40 with a check valve of the dispensing container 1 of the first embodiment, but is a mechanism for locking the base 51 to the cap body 102. Stop means 103 is provided.

On the inner peripheral surface of the cylinder portion of the cap body 102, a claw-like locking means 103 is formed over the entire circumference at a position lowered from the sealing means 45 by the thickness of the base 51. When the base 51 is attached to the cap main body 102, the locking means 103 is formed so as to be gradually inclined toward the upper part so that the base 51 can be guided. Close contact with the lower surface of the base 51. The locking means 103 is not limited to being formed continuously over the entire circumference, and may be formed partially.

When the base 51 is attached to the cap body 102, the base 51 is pushed in until the outer peripheral surface of the base 51 gets over the locking means 103, and the lower surface of the base 51 is closely locked to the upper end surface 104 of the locking means 103. . At this time, it is preferable to determine the formation position of the locking means 103 in consideration of the thickness of the base 51 so that the upper surfaces of the base 51 and the film 61 are tightly sealed to the sealing means 45. If the base 51 is pushed in when the cap 101 with a check valve is attached to the mouth of the container body and sealing is possible, the film 61 may be fixed.

Also, when the outer peripheral surface of the base 51 gets over the locking means 103, the locking means 103 and the film 61 come into contact with each other, so that the film 61 is not uniformly tensioned and wrinkles or tears are not generated. 103 and the shape of the periphery of the upper surface of the base 51 need to be determined. For example, the base 51 is chamfered on the edge of the upper surface of the base 51 by the thickness of the upper end surface 104 of the locking means 103 and the film 61 having the same diameter as that of the upper surface of the base 51 after chamfering is overlapped. By attaching 51 to the cap body 102, contact between the locking means 103 and the film 61 can be avoided.

FIG. 11 is a cross-sectional view of a cap 111 with a check valve according to a fourth embodiment of the present invention. The same components as those of the cap 40 with a check valve of the dispensing container 1 of the first embodiment shown in FIG. 1 and FIG. The cap 111 with a check valve of the present embodiment has the same basic configuration as the cap 40 with a check valve of the dispensing container 1 of the first embodiment, but is screwed into the cap body 112 and the base 113. A female screw 114 and a male screw 115 are provided.

The female screw 114 provided on the inner peripheral surface of the cylindrical portion of the cap main body 112 is arranged so that the upper surface of the base 113 and the film 61 are tightly adhered to and sealed with the sealing means 45 when the base 113 is screwed. Is done.

In order to prevent the base 113 from coming off after the base 113 is screwed, a claw (not shown) that locks the base 113 and the cap main body 112 may be provided, and the base 113 is screwed. Later, the base 113 and the cap body 112 may be partially bonded.

FIG. 12 is a cross-sectional view of a cap 121 with a check valve according to a fifth embodiment of the present invention. The same components as those of the cap 40 with a check valve of the dispensing container 1 of the first embodiment shown in FIG. 1 and FIG. The cap 121 with a check valve according to this embodiment includes a ring member 124 disposed between the ceiling surface 43 of the cap body 122, the base 123, and the film 61.

The cap 121 with a check valve of this embodiment includes a seal cylinder 125 that seals the mouth of the container body in the cap body 122, and the base 123 in a state where a ring member 124 that is press-fitted into the seal cylinder 125 is interposed. It is configured to be press-fitted into the inner peripheral surface of the seal cylinder 125.

The ring member 124 has an outer diameter that is substantially the same as the inner diameter of the seal cylinder 125 of the cap body 122, and includes convex sealing means 126, 127 formed on the upper surface and the lower surface over the entire circumference. It is press-fitted into the seal cylinder 125 of the cap body 122 so that 126 is in close contact with the ceiling surface 43 of the cap body 122. Since the material of the ring member 124 is the same as that of the base 123 and the like, description thereof is omitted.

If the upper and lower surfaces of the ring member 124 can be in close contact with the ceiling surface 43, the base 51 and the upper surface of the film 61 of the cap body 122, the sealing means 126 and 127 need not be provided. . As the ring member 124, a gasket or the like can be used.

The base 123 is press-fitted into the seal cylinder 125 of the cap body 122 into which the ring member 124 is press-fitted so that the base 123 and the upper surface of the film 61 are tightly sealed with the sealing means 127 on the lower surface of the ring member 124. The

By using the ring member 124 like the cap 121 with the check valve of the present embodiment, it is possible to secure the opening allowance of the discharge valve 71 even when the cap body does not have a pressing surface. In addition to those described in the present embodiment, for example, in the case of using a cap body (not shown) having no pressing surface 44 in the cap 40 with a check valve of the dispensing container 1 of the first embodiment, the ring member 124 is used. Thus, the discharge valve 71 can be formed.

Note that the method of attaching the ring member 124 to the seal cylinder 125 is not limited to press-fitting, and locking, screwing, snap-fit, etc. can be performed as in the method of attaching the base to the cap body in the above-described embodiment. The fitting, adhesion, etc. which were used may be sufficient. The same applies to the method of attaching the base 123 to the seal cylinder 125. In addition, the base 123 can be attached to the ring member 124 by press-fitting, locking, screwing, fitting, or bonding instead of the seal cylinder 125.

FIG. 13 is a view showing a configuration of a cap 131 with a check valve according to the sixth embodiment of the present invention. FIG. 13A is a cross-sectional view of a cap 131 with a check valve according to the sixth embodiment of the present invention, and FIG. 13B shows a film 61 on the upper surface of the base 133 in FIG. It is a perspective view which shows the state which accumulated. The same components as those of the cap 80 with a check valve of the dispensing container 2 of the second embodiment shown in FIG. 6 and FIG. The cap 131 with a check valve of the present embodiment has the same basic configuration as the cap 80 with a check valve of the dispensing container 2 of the second embodiment, but the circumferential direction between the cap body 132 and the base 133 is the same. The positioning method is different.

In the cap body 132, a positioning groove 134 is formed in a shape in which a part of the peripheral edge portion of the pressing surface 44 is dug. In addition, a positioning piece 135 is formed on the upper surface of the base 133 so as to be fitted into the positioning groove 134 with a part of the peripheral edge raised.

Further, the base 133 is provided with a notch 136 serving as a flow path for the outside air introduced from the intake hole 93 on the opposite side of the positioning piece 135 with the center therebetween. A portion of the film 61 that covers the notch 136 is an intake valve body portion 63.

The positional relationship among the positioning groove 134, the positioning piece 135, and the notch 136 is determined so that the notch 136 is arranged directly below the intake hole 93 of the cap body 132 so that the intake valve 75 is formed. Furthermore, it is preferable that the respective positions are determined so that the spout 42 of the cap body 132 and the valve hole 52 of the base 133 are arranged on opposite sides of the center.

When the base 133 is press-fitted into the cap main body 132, the positioning piece 135 is press-fitted so as to fit into the positioning groove 134, whereby the base 133 is positioned in the circumferential direction, and the notch 136 is inserted into the cap main body 132. An intake valve 75 is formed immediately below the intake hole 93.

FIG. 14 is a diagram showing a configuration of a cap 141 with a check valve according to the seventh embodiment of the present invention. FIG. 14A is a cross-sectional view of the cap 141 with a check valve according to the seventh embodiment of the present invention, and FIG. 14B shows the film 61 on the upper surface of the base 143 in FIG. It is a perspective view which shows the state which accumulated. The same components as those of the cap 131 with a check valve according to the sixth embodiment shown in FIG. The cap 141 with check valve of the present embodiment has the same basic configuration as the cap 131 with check valve of the sixth embodiment, but the positioning method in the circumferential direction of the cap body 142 and the base 143 is different.

The cap main body 142 is provided with a positioning step 144 for positioning the base 143 at a part of the peripheral edge of the ceiling surface 43, and two positioning holes 145 are provided in the ceiling surface 43.

On the upper surface of the base 143, a positioning piece 146 that fits into the step 144 of the cap body 142 and a positioning pin 147 that is inserted into the positioning hole 145 of the cap body 142 are provided. The shape and number of the positioning holes 145 and the positioning pins 147 are not limited to specific shapes and numbers.

The positional relationship among the step 144, the positioning hole 145, the positioning piece 146, the positioning pin 147, and the notch 136 is the same as in the cap 131 with check valve of the sixth embodiment. Are arranged so as to line up directly below the intake holes 93 of the cap body 142. Furthermore, it is preferable that the respective positions are determined so that the spout 42 of the cap body 142 and the valve hole 52 of the base 143 are arranged on opposite sides of the center.

When the base 143 is press-fitted into the cap main body 142, the positioning piece 146 is fitted into the step 144, and the positioning pin 147 is press-fitted into the positioning hole 145, thereby positioning the base 143. The notch 136 is positioned directly below the intake hole 93 of the cap body 142, and the intake valve 75 is formed.

In the cap 141 with a check valve of the present embodiment, the cap main body 142 and the base 143 may be provided with only the step 144 and the positioning piece 146 to perform the positioning in the circumferential direction. The positioning hole 145 and the positioning pin Only 147 may be provided to perform circumferential positioning.

FIG. 15 is a sectional view of a cap 151 with a check valve according to an eighth embodiment of the present invention. The same components as those of the cap 40 with a check valve of the dispensing container 1 of the first embodiment shown in FIG. 1 and FIG. The cap 151 with a check valve of this embodiment has the same basic configuration as the cap 40 with a check valve of the dispensing container 1 of the first embodiment, but instead of the seal cylinder 53 of the base 51, a cap is provided. The main body 152 is provided with a convex sealing means 155 for sealing the mouth of the container main body.

The cap body 152 is provided with a convex sealing means 45 in which two steps are formed at the peripheral edge of the ceiling surface 43, and the lower surface of the inner step is in close contact with the base 153 and the upper surface of the film 61. The holding surface 154 is provided with a pressing surface 44 and a convex sealing means 155 that seals the lower surface of the outer step in close contact with the mouth of the container body.

The base 153 has a flat plate shape so that the upper surface of the base 153 and the film 61 is in close contact with the sealing means 45 of the holding surface 44 inside the cap body 152 in a state where the film 61 is stacked on the upper surface. Then, it is press-fitted into the inner peripheral surface of the step on the outside of the cap body 152.

The base 153 is not provided with a seal cylinder. However, when the cap 151 with a check valve is manufactured, if necessary to place it on the cradle 100, a mounting means (like the seal cylinder 53) is provided. (Omitted) may be provided on the base 153. Further, for example, a receiving base (not shown) on which the base 153 is placed by inserting a pin (not shown) or the like into the valve hole 52 may be used without providing the mounting means.

When the cap main body 152 is attached to the mouth of the container main body, the sealing means 155 of the outer pressing surface 154 is brought into close contact with the front end surface of the mouth of the container main body. The cap body 152 can be sealed with the cap body 152 like the cap 151 with a check valve of the present embodiment. Further, the sealing means 155 outside the cap body 152 of the cap 151 with the check valve of the present embodiment is not limited to a specific one, and for example, the base 51 of the dispensing container 1 of the first embodiment. The seal cylinder 53 may be formed on the cap body 152. If the mouth of the container body can be sealed by the pressing surface 154, the sealing means 155 need not be provided.

FIG. 16 is a perspective view showing a configuration of a cap 161 with a check valve according to the ninth embodiment of the present invention. 17 is a cross-sectional view of the cap 161 with a check valve in FIG. The same components as those of the cap 80 with a check valve of the dispensing container 2 of the second embodiment shown in FIG. 6 and FIG. The cap 161 with a check valve of the present embodiment has the same basic configuration as the cap 80 with a check valve of the dispensing container 2 of the second embodiment, but in addition to the film 61, a ring-shaped intake valve body film 164, the film 61 is the valve body of the discharge valve 71, and the intake valve body film 164 is the valve body of the intake valve 75.

The film 61 is formed so that the arc portion has a diameter substantially the same as the diameter of the upper surface of the base 83 that is one step higher, and is overlapped along the outer edge of the upper surface so as to cover the valve hole 52.

The intake valve body film 164 has a ring shape, and the width of the ring is formed to be approximately the same as the width of the pressing surface 44 of the cap body 82, and covers the intake holes 93 when attached to the cap body 83. The portion becomes the intake valve body 165. In addition, since the material of the intake valve body film 164 is the same as that of the film 61, description is abbreviate | omitted.

The cap 161 with a check valve according to the present embodiment has a film 61 stacked on the upper surface of the base 83 along the outer edge, and an intake valve body film 164 is stacked on the base 83 so that the base 83 is aligned with the center. The cap body 82 is press-fitted, and the film 61 and the intake valve body film 164 are held in close contact with the sealing means 45 of the cap body 162 to form the discharge valve 71 and the intake valve 75. If the opening / closing performance of the discharge valve 71 and the intake valve 75 can be ensured, the order of stacking the film 61 and the intake valve body film 164 may be reversed.

When manufacturing the cap 161 with a check valve of the present embodiment, the intake valve body film 164 is also attached to the base 83 by the contact means in the contact process S2 in order to prevent the displacement of the intake valve body film 164 in the press-fitting process S3. In addition, it is preferable that the upper surface of the film 61 is closely attached. The manufacturing method is not limited to this, and for example, a part of the intake valve body film 164 may be bonded to the cap body 162 or the base 83 in advance.

In the case where the cap body 162 is provided with the intake hole 93 as in the cap 161 with a check valve of the present embodiment, the intake valve serving as the valve body of the discharge valve 71 and the intake valve 72 as the valve body. One body film 164 may be used.

FIG. 18 is a cross-sectional view of a cap 171 with a check valve according to the tenth embodiment of the present invention. The same components as those of the cap with check valve 161 of the ninth embodiment shown in FIGS. 16 and 17 are denoted by the same reference numerals and description thereof is omitted. The cap 171 with check valve of the present embodiment has the same basic configuration as the cap 161 with check valve of the ninth embodiment, but the shape and mounting procedure of the intake valve element film 174 are different.

The cap body 172 includes a support piece 175 that supports the intake valve element film 174 on the inner peripheral surface of the cylindrical portion in the vicinity of the intake hole 93. The support piece 175 is disposed so that the intake valve body film 174 can be attached between the upper surface of the support piece 175 and the pressing surface 44 of the cap body 172.

The intake valve body film 174 has a substantially rectangular shape, and is formed in such a size that the intake hole 93 can be opened and closed while being attached to the gap between the support piece 175 and the pressing surface 44. The shape of the intake valve element film 174 is not limited to a specific shape, and may be, for example, a circle.

Further, the intake valve body film 174 may have some rigidity so that it can be easily attached to the gap between the support piece 175 and the pressing surface 44. However, when the intake valve body film 174 has rigidity, it is necessary to have at least elasticity or flexibility capable of opening and closing the intake hole 93.

The method for attaching the intake valve body film 174 is not limited to the method using the support piece 175. For example, the intake valve 93 can be opened and closed on the holding surface 44 near the intake hole 93 of the cap body 171 so that the intake hole 93 can be opened and closed. A part of the body film 174 may be adhered and attached.

FIG. 19 is a perspective view showing a configuration of a cap 181 with a check valve according to the eleventh embodiment of the present invention. 20 is a perspective view of the cap main body 182 shown in FIG. 19 as viewed from below. The same components as those of the cap 80 with a check valve of the dispensing container 2 of the second embodiment shown in FIG. 6 and FIG. The cap with check valve 181 according to the present embodiment includes the intake holes 93 and the positioning grooves 95 at two locations, and includes two sets of positioning pieces 97 corresponding thereto.

The cap main body 182 includes the intake holes 93 at two locations, and includes a positioning groove 95 on the inner peripheral surface of the cylindrical portion that is an extension in the radial direction where the intake holes 93 are arranged.

In the base 183, two sets of positioning pieces 97 are formed on the outer peripheral surface of the cap body 182 in accordance with the arrangement of the positioning grooves 95.

Since the formation procedure of the positioning groove 95 and the positioning piece 97 is the same as that of the cap 80 with a check valve of the dispensing container 2 of the second embodiment, the description thereof is omitted.

Like the cap 181 with a check valve of the present embodiment, the number and arrangement of the intake holes 93 are not limited to a specific one, and at least in the space 20 between the inner container 11 and the outer container 21. What is necessary is just to be able to introduce outside air.

Further, when the intake holes 93 are provided at a plurality of locations, the intake valve body film 174 used in the cap 171 with the check valve of the tenth embodiment is attached to each intake hole 93, and the intake valves independent of each other in each intake hole 93. It is also possible to form 75.

As described above, the present invention using the dispensing

containers

1 and 2 and the

caps

40, 80, 101, 111, 121, 131, 141, 151, 161, 171, 181 with check valves of the first to eleventh embodiments. The check valve cap, the dispensing container including the check valve cap, and the manufacturing method of the check valve cap have been described. However, the check valve cap of the present invention and the check valve cap are provided. The manufacturing method of the extraction container and the cap with the check valve is not limited to the above embodiment, and can be used by being modified without changing the gist.

Although a flat plate material is mainly used for the base, the invention is not limited to this, and irregularities or the like may be provided on the upper surface and the lower surface of the base. The base does not need to be flat, and may be provided with irregularities or the like as long as it can be in airtight contact with the sealing means 45 of the cap body.

When the base is attached to the cap body, the film 61 has a structure in which tension is uniformly applied, so that the adhesion between the film 61 and the upper surface of the base can be improved and the sealing performance of the discharge valve 71 can be improved. . For example, when the upper surface of the base is formed in a dome shape, it is easy to apply a uniform tension to the film 61, and the tension also works in the direction in which the film 61 is in close contact with the base, so that the sealing performance of the discharge valve 71 is improved. ,preferable. For such a structure, for example, the extraction cap shown in FIGS. 4, 6, and 7 described in Japanese Patent Application No. 2013-100316 filed by the present applicant can be referred to.

For example, a capillary suction force is applied to the valve seat of the base as in the check valve unit shown in FIGS. 31 and 32 described in International Application No. PCT / JP2013 / 83871 filed by the present applicant. For this purpose, a vein-like groove or a groove provided over the entire width may be formed. By providing such a groove, the sealing performance of the discharge valve 71 can be improved. The depth of the groove is appropriately determined to be a depth at which the liquid always stays and a depth at which the liquid can be exchanged smoothly. If the groove is too deep, the liquid cannot be exchanged smoothly and should not be deeper than necessary.

Also, the shape of the groove provided in the valve seat of the base is not limited to a specific shape, and for example, a groove such as a round mark or an X mark may be provided. Further, the same effect can be obtained by roughening the surface instead of the groove or providing small irregularities on the surface.

The mounting method of the base to the cap body is not limited to press-fitting, locking, and screwing. For example, the upper surface of the base and the pressing surface of the cap body are used by vibration welding or ultrasonic welding. It may be glued. As long as the film does not cause wrinkles or tears and the film is in close contact with the upper surface of the base so that the valve hole can be opened and closed, an optimum method may be adopted as appropriate in consideration of manufacturing costs and the like. .

In the present invention, the state in which the discharge valve (and the intake valve) is formed means that when the base and the film are attached to the cap body, the upper surface of the base and the film and the cap body (seal means). The contact portion is sealed, and the upper surface of the base at the contact portion and the film are sealed, and the discharge valve (and the intake valve) is not limited to a state in which the check function is normally exhibited. When the cap is attached to the mouth of the container body, these seals are performed, and the discharge valve (and the intake valve) includes a state in which the check function is normally exhibited.

The air-tightness of the intake valve 75 only needs to be maintained to such an extent that the contents can be discharged. For example, the outer container 21 is unexpectedly pressurized when the pouring container 2 falls, and the contents leak out. In order to prevent the air in the space 20 from expanding due to thermal expansion and pressurizing the inner container 11 to leak the contents, the female screw 37 of the intake valve 75 and the ring cap 81 and the outer container The air may intentionally leak to some extent from the gap with the male screw 23 of 21.

The intake valve 75 is not limited to a check valve using a film. For example, a known check valve (not shown) using a ball, a movable plate member, or the like can be attached. is there. Further, instead of the intake valve 75, a leak means (not shown) such as a hole or a gap for circulating air may be provided. The leak means is provided so that the amount of air leakage from the space 20 when the outer container 21 is contracted is limited to the extent that the contents can be discharged from the inner container 11. At the time of shape restoration, outside air is introduced into the space 20.

In the dispensing container 1 of the first embodiment, the intake passage 33 is provided in the ring cap 31, but is not limited to this, and the intake passage 33 and the intake valve 75 are part of the outer container 21. It may be provided. At this time, instead of the intake passage 33 and the intake valve 75, the above-described leakage means may be provided in the outer container 21.

The container body is not limited to the double container used in the dispensing

containers

1 and 2 of the first and second embodiments. For example, the container body is formed by stacking the inner container so as to be peelable from the outer container. A delamination bottle (laminated peelable container) or the like may be used.

The container body is not limited to a double container. For example, a plastic container, a paper liquid container, a bag container that is commercially available, etc., and a container body that can shrink as the contents are discharged are appropriately selected. Can be used. When a double container is not used for the container body, the intake valve 75 is not necessary, and a cap with a check valve in which only the discharge valve 71 is formed can be suitably used.

As described above, the material of the cap with a check valve and the dispensing container of the present invention can be appropriately selected and used according to the use and contents to be contained. Even if the shape of the dispensing container is changed without changing the gist, and other parts are added to the cap with the check valve of the present invention and the dispensing container, What is necessary is just to select and use suitably according to the content to accommodate. For example, in order to prevent the liquid contained in the dispensing container from being oxidized, all members (including parts) in contact with the liquid or main members may be made of a material having excellent oxygen barrier properties. Needless to say, it is preferable that the material to be used is inexpensive and easily available as long as it satisfies a predetermined performance.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily consider various changes and modifications within the obvious range by looking at the present specification. Therefore, such changes and modifications are interpreted as being within the scope of the invention defined by the claims.

1, 2 Outlet container 11 Inner container 12 Spout 13 Mouth part 20 Space part 21

Outer container

31, 81 Ring cap 33

Intake passage

38, 164, 174 Intake

valve body film

40, 80, 101, 111, 121, 131 Check Caps with valves 141, 151, 161, 171, 181 Caps with

check valves

41, 82, 102, 112, 122, 132

Cap bodies

142, 152, 172, 182 Cap bodies 42

Spouts

51, 83, 113, 123, 133 Base 143, 153, 183 Base 52 Valve hole 61 Film 62 Discharge valve body 63, 165 Intake valve body 71 Discharge valve 75 Intake valve 93 Intake hole 103 Locking means 114 Female thread 115 Male thread 124 Ring member S2 Adhering process

Claims

A discharge valve having a check function, which is a cap with a check valve attached to the mouth of a container body that contains contents,
A cap body, which is attached to the mouth of the container body, and includes a spout for pouring out the contents;
A base comprising a valve hole that circulates the contents, constituting the discharge valve;
Comprising a film constituting the discharge valve,
The base and the film are attached to the cap body in a state where the film is overlaid on the base so as to cover the valve hole, and the valve hole is provided at the inlet, and the base on which the film is overlaid. A cap with a check valve, characterized in that the discharge valve having a part of a valve seat and the film as a valve body is formed.
The cap with a check valve according to claim 1, wherein the base is press-fitted and attached to the cap body.
The said cap main body and / or the said base are provided with the connection means for mutually connecting, The said base is attached to the said cap main body by the said connection means, The Claim 1 or 2 characterized by the above-mentioned. Cap with check valve.
The check valve according to claim 3, wherein the connecting means is a locking means provided on the cap main body and / or the base to lock the base on the cap main body. cap.
The cap with a check valve according to claim 3, wherein the connecting means is a female screw and a male screw provided on the cap body and the base.
The said base is attached to the said cap main body by adhesion | attachment, The cap with a non-return valve of any one of Claim 1 to 5 characterized by the above-mentioned.
A ring member is further provided, and the base is attached to the cap body with the ring member interposed between the cap body and an upper surface of the base on which the film is stacked. Item 7. A cap with a check valve according to any one of items 1 to 6.
The cap body further includes an intake hole for circulating outside air,
The film further includes an intake valve body for opening and closing the intake hole,
2. An intake valve having a check function is formed in which the intake hole is an inlet, a part of the cap body is a valve seat, and the intake valve body portion of the film is a valve body. 8. A cap with a check valve according to any one of 7 above.
A pouring container comprising the cap with a check valve according to any one of claims 1 to 8, and a container body.
A cap with a check valve according to any one of claims 1 to 8,
An inner container for containing contents and to which the check valve cap is attached;
An outer container containing the inner container;
A ring cap provided with an intake passage that serves as a lid for the outer container and introduces outside air into a space between the inner container and the outer container;
An extraction container comprising an intake valve element film for opening and closing the intake passage.
A cap with a check valve according to claim 8,
An inner container for containing contents and to which the check valve cap is attached;
An outer container containing the inner container,
A dispensing container, wherein a space between the inner container and the outer container communicates with the intake hole of the cap with the check valve via the intake valve.
The dispensing container according to claim 10 or 11, wherein the inner container can be refilled with a new inner container, and at least the outer container is configured to be repeatedly usable.
A method for producing a cap with a check valve according to any one of claims 1 to 8,
Having an adhesion step of bringing the film into intimate contact with the upper surface of the base via an adhesion means;
A method of manufacturing a cap with a check valve, wherein the base is attached to the cap body in a state where the film is in close contact with the upper surface of the base via the contact means.
The contact means is a suction means for sucking outside air from a lower end of the valve hole of the base,
In the state where the film is stacked on the upper surface of the base, the suction means sucks outside air from the lower end of the valve hole of the base, thereby bringing the film into close contact with the upper surface of the base. The manufacturing method of the cap with a non-return valve of Claim 13.
The contact means is a liquid,
14. The method for manufacturing a cap with a check valve according to claim 13, wherein the liquid is interposed between the upper surface of the base and the film so that the film is in close contact with the upper surface of the base. .
The contact means is a charging means for charging the upper surface of the base and / or the film with static electricity,
Via the charging means, the upper surface of the base and / or the film is charged with static electricity, and the film is adhered to the upper surface of the base by overlapping the film on the upper surface of the base. A method for manufacturing a cap with a check valve according to claim 13.