JP2013052905A - Pouring device and storage container provided with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouring device configured so that a content overflowing from a pouring opening can be easily removed.SOLUTION: The pouring device 10 includes a cylindrical pouring part 30 having a pouring opening 30a opened to the upper surface, and a lid part 20 closing the upper surface of the pouring part 30. A male thread 21 is provided on the outer circumferential surface of the lid part 20 and screwed with a female thread 31 provided on the inner circumferential surface of the pouring part 30. An annular recess 34 is provided below the male thread 31. An annular ring part 22 is connected to the lid part 20 below the male thread 21 through a connecting part 23. A projection 24 to be fitted to the recess 34 is circumferentially protruded at predetermined intervals on the outer circumferential surface of the ring part 22. The connecting part 23 is circumferentially provided at predetermined intervals to connect the male thread 21 to the ring part 22. The connecting part 23 is easily cut by circumferentially rotating the lid part 20 with the ring part 22 being fixed.

Description

  The present invention relates to a pouring tool that forms a spout for a storage container that stores a fluid. The present invention also relates to a storage container that has a spout and stores a fluid.

  Conventional storage container pouring tools are disclosed in Patent Document 1 and Patent Document 2. This pouring tool is provided in a storage container made of a plastic bottle, and includes a cylindrical pouring portion that forms a pouring port and a crown-shaped lid portion that opens and closes the upper surface of the pouring portion. Threaded portions that are screwed together are provided on the outer peripheral surface of the extraction portion and the inner peripheral surface of the lid portion.

  An annular recess is formed below the threaded portion of the extraction portion. An annular ring portion is provided below the screw portion of the lid portion via a connection portion. The connecting portions are provided at predetermined intervals in the circumferential direction, and connect the screw portion and the ring portion. A convex part that engages with the concave part protrudes from the inner peripheral surface of the ring part.

  When the lid portion is screwed to the extraction portion, the upper surface of the extraction portion is blocked and the convex portion is locked to the concave portion so as not to be detached. Thereby, when the lid portion is screwed off, the connecting portion is cut, and the storage container is opened with the ring portion locked in the recess. Moreover, the spout is closed by screwing the lid portion again after opening, and the storage container can be carried with the contents remaining.

  In addition, when the storage container is filled with the contents and the lid portion is screwed together, the contents may overflow from the spout and flow down from between the inner peripheral surface of the lid portion and the outer peripheral surface of the extraction portion. is there. For this reason, the storage container is washed by a high-pressure shower after the lid portion is screwed.

JP 2006-143321 A JP-A-2005-074427

  However, according to the above-mentioned pouring tool, the peripheral wall of the crown-shaped lid portion covers the outer peripheral surface of the pouring portion, so that the content overflowing between the inner peripheral surface of the lid portion and the outer peripheral surface of the pouring portion is sufficiently removed. There was a problem that residues could not be removed.

  In view of the above problems, an object of the present invention is to provide a pouring tool and a storage container that can easily remove contents overflowing from a spout.

  In order to achieve the above object, the present invention has a cylindrical pouring portion having an opening on the upper surface and a male screw portion screwed into the inner peripheral surface of the pouring portion, and the upper surface of the pouring portion. And an annular ring portion that is connected to the lower portion of the male screw portion via a connecting portion and has a protruding portion protruding from the outer peripheral surface. The pouring part has an annular recess that is recessed in the inner peripheral surface and fits into the protrusion, and the connection part is cut by engagement of the protrusion and the recess when the lid is opened. It is characterized by that.

  According to this configuration, when the lid portion is screwed off at the time of opening, the connection portion connecting the ring portion and the lid portion is cut. At this time, the ring portion is locked to the inner peripheral surface of the extraction portion in a state in which the convex portion fits into the concave portion provided on the inner peripheral surface of the extraction portion and cannot be detached.

  Moreover, the pouring tool of the present invention is characterized in that, in the above configuration, an inclined surface is formed on the outer peripheral portion of the lower end of the convex portion.

  Moreover, the storage container of this invention is equipped with the extraction tool of the said structure, It is characterized by the above-mentioned.

  According to the present invention, the male thread portion of the lid portion is screwed into the inner peripheral surface of the extraction portion, and the convex portion protruding from the outer peripheral surface of the ring portion is engaged with the concave portion provided on the inner peripheral surface of the extraction portion. And a cutting part is cut | disconnected at the time of opening of a cover part. Thereby, since the outer peripheral surface of the extraction | pouring part is not covered with a cover part, the content which overflowed from the spout and adhered to the outer peripheral surface of the extraction | pouring part can be removed easily. Therefore, the residue remaining on the pouring tool can be prevented.

The perspective view of a storage container provided with the extraction tool which concerns on embodiment of this invention. The longitudinal cross-sectional view which shows the state before opening of the extraction tool which concerns on embodiment of this invention The longitudinal cross-sectional view which shows the state after opening of the extraction tool which concerns on embodiment of this invention Sectional drawing which shows the layer structure of a storage container provided with the extraction tool which concerns on embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a storage container 40 including a pouring tool 10.

  The storage container 40 is formed of a package body composed of a laminate 60 (see FIG. 4) including at least a base material layer 61, a barrier layer 62, and a heat-adhesive resin layer 63. The storage container 40 has the innermost heat-adhesive resin layer 63 facing each other and heat-bonds the edge heat-bonding portion 41 with a predetermined width to form a storage space 48 for storing contents.

  An opening 43 is provided on the upper portion of the storage container 40 so as to protrude upward, and the resin-molded dispensing tool 10 is disposed in the opening 43. The pouring tool 10 includes a pouring portion 30 and a lid portion 20, and an outer peripheral surface of the pouring portion 30 inserted into the opening portion 43 and an inner peripheral surface of the opening portion 43 are bonded by an adhesive portion 44.

  FIG. 2 shows a longitudinal sectional view of the dispensing tool 10. The pouring tool 10 includes a cylindrical pouring portion 30 with an opening 30 a on the upper surface and a lid portion 20 that closes the upper surface of the pouring portion 30. A male screw portion 21 is provided on the outer peripheral surface of the lid portion 20, and the male screw portion 21 is screwed with a female screw portion 31 provided on the inner peripheral surface of the extraction portion 30.

  An annular recess 34 is formed below the female screw portion 31 on the inner peripheral surface of the extraction portion 30. An annular ring portion 22 is connected to the lid portion 20 via a connection portion 23 below the male screw portion 21. The connecting portions 23 are provided at predetermined intervals in the circumferential direction, and connect the male screw portion 21 and the ring portion 22. The connection part 23 is easily cut by rotating the lid part 23 in the circumferential direction with the ring part 22 fixed.

  On the outer peripheral surface of the ring portion 22, convex portions 24 that fit into the concave portions 34 are projected at predetermined intervals in the circumferential direction. An inclined surface 24 a is formed on the outer peripheral portion at the lower end of the convex portion 24. The inclined surface 24a may be formed on a curved surface or a flat surface.

  The lid portion 20 is inserted into the extraction portion 30 while being rotated in the screwing direction inside the extraction portion 30 with the ring portion 22 connected thereto, and is screwed to the extraction portion 30. When the convex part 24 of the lid part 20 comes into contact with the female screw part 31 on the inner peripheral surface of the extraction part 30, the convex part 24 is inserted while being bent toward the ring part 22 side.

  At this time, the lid portion 20 is smoothly inserted into the extraction portion 30 by the inclined surface 24 a formed on the outer peripheral portion at the lower end of the convex portion 24. When the convex part 24 of the ring part 22 is fitted into the concave part 34 of the extraction part 30, the lid part 20 is fixed inside the extraction part 30. The convex portion 24 once fitted in the concave portion 34 is fixed in the insertion / removal direction of the lid portion 20, and if the connection portion 23 is not cut, the lid portion 20 is unscrewed from the extraction portion 30 to open the extraction portion 30. It is not possible.

  When the lid portion 20 in which the convex portion 24 is fitted in the concave portion 34 is turned in the screwing direction, the male screw portion 21 rotates along the female screw portion 31 and the lid portion 20 is screwed from the dispensing portion 30. escape. On the other hand, the ring portion 22 is fixed to the inner peripheral surface of the extraction portion 30 with the convex portion 24 engaged with the concave portion 34, and the ring portion 22 is not screwed even when the lid portion 20 is rotated in the screwing direction.

  For this reason, as shown in FIG. 3, by the rotation of the lid portion 20, the lid portion 20 and the ring portion 22 are separated and the connection portion 23 is sequentially cut. Thereby, the cover part 20 is removed from the extraction part 30 and the extraction part 30 is unsealed by continuing to rotate the cover part 20 separated from the ring part 22 in the screwing direction. At this time, the ring portion 22 remains on the inner peripheral surface of the extraction portion 30 in a state in which the convex portion 24 fits into the concave portion 34 provided on the inner peripheral surface of the extraction portion 10 and cannot be detached. By re-engaging the lid 20 after opening, the spout 30a is closed and the storage container 40 can be carried with the contents remaining.

  FIG. 4 is a cross-sectional view showing the layer configuration of the laminate 60 that constitutes the storage container 40. The laminated body 60 constituting the storage container 40 is configured by sequentially laminating a base material layer 61 that is an outermost layer, a thermoadhesive resin layer 63 that is an innermost layer, and a barrier layer 62 that is an intermediate layer. Each layer is bonded with a dry laminate adhesive.

  When the storage container 40 is subjected to severe physical and chemical conditions, the base material layer 61 has high sealing performance, puncture resistance (pinhole resistance), heat resistance, light resistance, and quality maintenance. , Workability, hygiene and the like.

  Examples of the base material layer 61 include low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid. Ethyl copolymer, ethylene-acrylic acid or methacrylic acid copolymer, methylpentene polymer, polybutene resin, polyvinyl chloride resin, polyvinyl acetate resin, polyvinylidene chloride resin, vinyl chloride-vinylidene chloride copolymer , Poly (meth) acrylic resin, polyacrylonitrile resin, polystyrene resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene styrene copolymer (ABS resin), polyester resin, polyamide resin Resin, poly -Any known resin film or sheet such as sulfonate resin, polyvinyl alcohol resin, saponified ethylene-vinyl acetate copolymer, fluorine resin, diene resin, polyacetal resin, polyurethane resin, nitrocellulose, etc. Can be used.

  The heat-adhesive resin layer 63 may be any material that can be melted by heat and can fuse the opposing laminates 60 to each other. For example, low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear (line Shape) Low density polyethylene, ethylene / α-olefin copolymer polymerized using metallocene catalyst (single site catalyst), polypropylene, ethylene / vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, Polyolefin resins such as ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, methylpentene polymer, polyethylene or polypropylene are used for acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, etc. Acid-modified polyolefin resin modified with unsaturated carboxylic acid It one not selected from may be used or two or more kinds. Preferable examples include linear low density polyethylene. The thickness of the heat-adhesive resin layer 63 is preferably about 10 μm to 100 μm, particularly preferably about 15 μm to 50 μm, considering heat sealability and the like.

  The barrier layer 62 may be made of a metal such as aluminum or nickel, a film on which silicon oxide, alumina, or the like is deposited, or a heat resistant resin such as polyethylene terephthalate or polyethylene naphthalate. Alternatively, the barrier layer 62 may be omitted to form the soft laminate 60.

  The dry laminating adhesive firmly adheres the base material layer 61, the barrier layer 62, and the thermoadhesive resin layer 63 constituting the laminate 60 to prevent the occurrence of delamination. Examples of dry laminate adhesives include polyvinyl acetate adhesives, homopolymers such as ethyl acrylate, butyl, 2-ethylhexyl ester, or copolymers of these with methyl methacrylate, acrylonitrile, styrene, etc. Polyacrylic acid ester adhesives, cyanoacrylate adhesives, ethylene copolymer adhesives made of copolymers of ethylene and monomers such as vinyl acetate, ethyl acrylate, acrylic acid, methacrylic acid, etc., cellulose Adhesives, polyester adhesives, polyamide adhesives, polyimide adhesives, amino resin adhesives made of urea resin or melamine resin, phenol resin adhesives, epoxy adhesives, polyurethane adhesives, reactive type (Meth) acrylic adhesive, chloroprene rubber, nitrile Beam, styrene - rubber adhesive comprising a butadiene rubber, a silicone-based adhesive, an alkali metal silicate, may be used an inorganic adhesive or the like made of a low-melting-point glass or the like.

  According to the present embodiment, the male screw portion 21 of the lid portion 20 is screwed into the inner peripheral surface of the extraction portion 30, and the convex portion 24 protruding from the outer peripheral surface of the ring portion 22 is the inner peripheral surface of the extraction portion 30. The cut portion 23 is cut when the lid portion 20 is opened by fitting with the concave portion 34 provided on the lid portion 20. Thereby, since the outer peripheral surface of the extraction | pouring part 30 is not covered with the cover part 20, the content which overflowed from the spout 30a and adhered to the outer peripheral surface of the extraction | pouring part 30 can be removed easily. Therefore, the residue remaining on the pouring tool 10 can be prevented.

  Moreover, the inclined surface 24a is formed in the outer peripheral part of the lower end of the convex part 24, and the cover part 20 can be inserted smoothly.

  In addition, the pouring tool 10 of this embodiment can also be used for the storage container of resin molded products, such as a PET bottle, besides attaching to the package body comprised by the laminated body 60. FIG. At this time, the pouring part 30 may be integrally formed with the storage container.

  INDUSTRIAL APPLICABILITY The present invention can be used for a pouring tool attached to a storage container for packaging food, daily necessities, and pharmaceutical preparations such as liquid or gel as contents.

DESCRIPTION OF SYMBOLS 10 Pouring tool 20 Lid part 21 Male thread part 22 Ring part 23 Connection part 24 Convex part 24a Curved surface 30 Pouring part 30a Outlet 31 Female thread part 34 Concave part 40 Storage container 41 Thermal bonding part 43 Opening part 44 Bonding part 60 Laminate 61 Base material layer 62 Barrier layer 63 Thermal adhesive resin layer

Claims (3)

  A pouring tool comprising: a cylindrical pouring portion having an opening on the upper surface; and a lid portion having a male screw portion screwed into an inner peripheral surface of the pouring portion and closing the upper surface of the pouring portion. The lid portion is connected to the lower side of the male screw portion via a connection portion, and has an annular ring portion projecting a convex portion on the outer peripheral surface, and the pouring portion is recessed on the inner peripheral surface. An extraction tool comprising an annular recess that is provided and fitted to the projection, and the connection portion is cut by engagement of the projection and the recess when the lid is opened.   The extraction tool according to claim 1, wherein an inclined surface is formed on an outer peripheral portion of a lower end of the convex portion.   A storage container comprising the pouring tool according to claim 1.

Images