JP2012081977A - Spout stopper and packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spout stopper with which a flow rate in pouring out a liquid can be limited and has no liquid drip after pour-out, and a packaging container.SOLUTION: The packaging container includes a container body and the spout stopper 200a. The spout stopper 200a includes: a cylindrical sidewall 211a; a mouthpiece flange 212 provided continuously from an outer periphery on one of ends of the sidewall 211a for improving liquid drainage in pouring out; a spout 210a having a flange part 213 provided on the other end of the sidewall 211a for sealing the packaging container and a rectifying plate 214a provided inside the sidewall 211a for controlling a flow of contents; a sealing member 220 to be applied on a flat surface at one of ends of the spout 210a; and a cap 230 to be put on the spout 210a.

Description

  The present invention relates to a spout stopper attached to an opening of a liquid packaging container such as a paper pack, and a packaging container provided with a spout stopper.

  As a packaging container for packaging liquid contents such as soy sauce, for example, a paper container or the like provided with a spout stopper is widely used in consideration of ease of use. The spout stopper is, for example, a cap that is detachably attached to a spout that functions as a spout.

  The spout includes a cylindrical side wall functioning as a spout and a flange portion provided at the other end of the side wall for sealing to the paper container. When the inner diameter of the spout is small, a seal member may be attached to the outer end of the side wall in order to ensure the sealing performance of the packaging container when not in use. The seal member is removed during use.

Japanese Utility Model Publication No. 37-6194 Japanese Utility Model Publication No. 47-7663 Japanese Utility Model Publication No. 49-71358 JP-A-10-129704 JP-A-2005-41541

  When pouring the liquid inside the packaging container, the packaging container is tilted and the spout is directed downward. As a result, the contents flow out to the outside through the inside of the side wall of the spout. Here, for example, when a small amount of soy sauce is dropped on a food, there is a case where the contents are desired to be poured out from the spout while suppressing the outflow amount. In order to suppress the outflow amount of the contents, for example, it is necessary to finely adjust the inclination of the packaging container, which is complicated for the consumer. Moreover, when sealing a spout with a sealing member, the open end of a spout is comprised by the flat surface, and the sealing member is made easy to stick. However, when the open end is a flat surface, there is a problem that the dripping is likely to occur because the content adheres to the flat surface after the content is poured out, or the liquid runs out badly. is there.

  Therefore, an object of the present invention is to provide a spout stopper that can restrict the flow rate at the time of pouring of liquid and hardly causes dripping after pouring, and a packaging container using the spout.

  The present invention relates to a spout stopper attached to a liquid packaging container. The spout stopper includes a cylindrical side wall, a mouth collar provided continuously on the outer peripheral edge of one end of the side wall, a flange provided on the other end of the side wall for welding to the packaging container, and an inner side of the side wall. A spout having a baffle plate, a seal member attached to a flat surface at one end of the spout, and a cap attached to the spout. The cross-section of the spout in the radial direction of the spout is bent in the radial direction of the side wall after drawing a convex arc that widens the distance from the outer peripheral edge of one end of the side wall toward the other end of the side wall. It has a shape defined by the contour line that reaches. The current plate is composed of at least three ribs extending from a part of the inner surface of the side wall toward the central axis of the side wall and connected to each other in the vicinity of the central axis.

  The present invention also relates to a liquid packaging container. The packaging container includes a container body and the above-described spout stopper. The flange part of the spout is welded to the inner surface of the container body with the side wall of the spout inserted through the opening of the container.

  When the packaging container according to the present invention is used, the flow rate can be reduced so as to be appropriate for the consumer when the liquid is dispensed, and the dripping after dispensing can be effectively suppressed.

The perspective view of the packaging container which concerns on 1st Embodiment The perspective view of the spout stopper concerning a 1st embodiment Sectional drawing along the XX line of the spout stopper shown in FIG. Top view of the spout shown in FIG. Sectional drawing of the spout stopper which concerns on 2nd Embodiment Top view of spout according to second embodiment

(First embodiment)
FIG. 1 is a perspective view of a packaging container according to the first embodiment.

  The packaging container 1 is for storing liquid contents such as soy sauce and soup (hereinafter referred to as “contents”), and pouring into small portions as necessary, and a relatively small amount (for example, several hundred ml). ) Is suitable for storing the contents. The packaging container 1 is formed by welding a spout stopper 200a that functions as a spout for pouring the contents to a paper container main body 100. More specifically, the spout flange portion (broken line portion in FIG. 1) is welded to the inner surface of the container body 100 in a state where the spout as the spout plug 200 a is inserted into the opening provided in the roof mold portion of the container body 100. Has been.

  The container body 100 is for containing a liquid therein, and is, for example, a paper container of a gable top type (gable roof type). The material and shape of the container body 100 are not limited to those shown in FIG. For example, the outer shape may be a polygonal shape such as a cylindrical shape or a hexagonal shape. As the contents filled in the packaging container 1, a liquid (for example, soy sauce) in which a powdered solid is precipitated when dried is particularly effective.

  2 is a perspective view of the spout stopper according to the first embodiment, FIG. 3 is a cross-sectional view of the spout stopper shown in FIG. 2 along the line XX, and FIG. It is a top view of the spout shown. More specifically, FIG. 2 (a) is a view showing a spout stopper, and FIG. 2 (b) is a view showing a spout alone with a cap removed.

  The spout plug 200a is detachably attached to the spout 210a functioning as a spout, a seal member 220 (see a partially enlarged view of FIG. 3) for sealing the spout, and the spout 210a for opening and closing the spout. And a cap 230 to be attached.

  The spout 210a has a cylindrical side wall 211a that forms a spout and a mouth that is continuously provided on the outer peripheral edge of the outer end (upper end in FIG. 3) of the side wall 211a in order to improve liquid drainage during pouring. A flange portion 213 provided at the lower end of the side wall 211a (the lower end in FIG. 3) for welding to the flange portion 212 and the container main body 100, and an inner side of the side wall 211a to control the flow rate of the contents at the time of pouring. And a rectifying plate 214a provided on the front side.

  The side wall 211a is for guiding the contents from the inside of the packaging container 1 to the outside at the time of pouring. The side wall 211a is connected to the first straight portion (the portion indicated by A1 in the drawing) from the lower end to the outer end, and the tapered portion (in the drawing, the inner diameter decreases toward the open end). A portion indicated by A2) and a second straight portion (a portion indicated by A3 in the drawing) connected to the tapered portion and extending to the open end. Thus, by tapering the shape of the side wall 211a, it becomes possible to restrict the flow rate of the contents at the time of pouring. Further, in order to ensure adhesion with the seal member 220, a flat surface (B portion in FIG. 3) is formed on the upper surface of the outer end of the side wall 211a. Furthermore, a screw thread for screwing the cap 220 is formed on the outer surface of the side wall 211a.

As shown in the partially enlarged view of FIG. 3, the cross section of the lip portion 212 is defined by the outline shape connecting the points P _{1 to} P ₄ . More particularly, outline of the cross section of the mouth flange portion 212, an arc of convex distance between the side walls 211a terms P ₁ on the outer periphery of the outer end of the side wall 211a toward the lower end of the side wall is prolonged After extending in this manner, the point P ₂ bends in the radial direction of the side wall 211a and extends to the point P ₃ , and then draws a concave arc whose diameter narrows toward the lower end of the side wall 211a to point P ₄ on the outer surface of the side wall 211a. Has reached. By defining the cross-section of the mouth collar portion 212 with an outline line extending to the points P _{1 to} P ₃ , a curved surface whose diameter increases as the distance from the outer end increases on the upper surface on the outer end side of the side wall 211a. By providing this curved surface, the liquid breakage of the contents can be improved.

  The flange part 213 consists of a flange-shaped board | plate material connected to the lower end of the side wall 211a. When the spout stopper 200 a is welded to the opening of the container body 100, the upper end surface of the flange portion 213 in FIG. 3 is welded to the inner surface of the container body 100.

The rectifying plate 214a extends from a part of the inner surface of the side wall 211a toward the central axis (the one-dot chain line in FIG. 3) of the side wall 211a and is connected to each other in the vicinity of the central axis (width W1 and Height D1). The rectifying plate 214a is formed in a disc shape in the vicinity of the central axis where the ribs are connected to each other. In addition, three ribs are provided at equal intervals in the circumferential direction of the side wall 211a so that the central angles (120 degrees) formed by adjacent ribs are equal to each other. Thus, by providing the rectifying plate 214a on the inner side of the side wall 211a, it is possible to appropriately limit the flow rate of the contents at the time of pouring. The number of ribs, the rib width, the shape and size of the part where the ribs are connected, the open part It is preferable to adjust the area and the like appropriately.

  The spout 210a having the above configuration is integrally molded by, for example, injection molding using a resin. As an example, the mold used for injection molding the spout 210a is provided with a cavity corresponding to the spout 210a and three gates for injecting resin into the cavity. For example, the gate is provided on a cavity surface corresponding to the lower end surface of the connection plate in FIG. Each gate is provided at equal intervals in the circumferential direction of the connection plate and corresponding to an intermediate position between cavities constituting adjacent ribs. As a result, the resin filled from the adjacent gates at the time of injection molding merges in the cavity corresponding to the ribs arranged between the adjacent gates, and preferentially forms a weld line in the ribs. This suppresses the generation of a weld line at the outer end (upper end in FIG. 3) of the side wall 211a. In addition to providing a corresponding three-point gate between adjacent ribs as described above, by using a two-point gate having a different gate diameter, the amount of resin filled from each gate can be varied. The weld line can be generated in the rib.

  The sealing member 220 is welded to the upper surface on the outer end side of the side wall 211a in order to keep the packaging container 1 in a sealed state while the packaging container 1 is not used. It consists of an aluminum sheet with a layer. As described above, the upper surface on the outer end side of the side wall 211a is flat and the occurrence of weld lines is suppressed. As a result, when the seal member 220 is welded to the upper surface on the outer end side of the side wall 211a, the occurrence of cracks due to insufficient strength of the weld line in the side wall 211a is prevented, and the seal member 220 and the side wall 211a are not exposed. Good adhesion to the upper surface on one side is ensured.

  The cap 230 is formed in a cylindrical shape that is slightly larger than the side wall 211a. A packing 231 is provided on the inner side of the portion of the cap 230 that faces the spout of the spout 210a to ensure the sealing performance of the packaging container 1 after the sealing member 220 is peeled off. As a result, when the cap 230 is attached to the spout 210 a after the seal member 220 is peeled off, the outer end of the side wall 211 a is sealed by the packing 231. Further, a knurling functioning as a slip stopper is formed on the outer side surface of the cap 230 when the consumer opens and closes the cap 230. Furthermore, a screw thread is formed on the inner side surface of the cap 230 to be screwed into the screw thread of the side wall 211a.

  In the packaging container 1 described above, the inner diameter dimension of the side wall 211a on the outer end side is smaller than the other part, and the rectifying plate 214a is provided inside the side wall 211a. Spillage can be appropriately restricted. As a result, it becomes easy for the consumer to dispense a small amount of contents. Further, a mouth collar portion is provided on the outer peripheral edge of the outer end of the side wall 211a. As a result, the content is effectively drained, and after the content is poured out, the content is effectively prevented from adhering to the outer surface of the side wall 211a due to dripping. Therefore, even if the soy sauce in which solid matter precipitates after drying is the content, the packaging container 1 can be used without any solid matter remaining on the outer end or outer surface of the side wall.

(Second Embodiment)
FIG. 4 is a cross-sectional view of the spout plug according to the second embodiment, and FIG. 5 is a top view of the spout according to the second embodiment.

  The spout stopper 200b according to the second embodiment is different in spout shape from the first embodiment. More specifically, the side wall 211b and the rectifying plate 214b are different. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The inner diameter of the side wall 211b is constant from the upper end to the lower end of the side wall 211b. Moreover, the rib which comprises the baffle plate 214b is designed small width compared with the baffle plate 214a which concerns on 1st Embodiment (W2 <W1 (refer FIG. 4 and 6)). On the other hand, the height of the rib constituting the rectifying plate 214b is designed to be larger than the height of the rib constituting the rectifying plate 214a in the same direction (D1> D2 (see FIGS. 3 and 5)).

  In the packaging container using such a spout stopper 200b, the flow rate of the contents is adjusted to be larger than that in the first embodiment. Therefore, the packaging container according to the second embodiment is suitable for, for example, pouring out a relatively high-viscosity content in which a solid is likely to precipitate. Further, by reducing the area of the rib, the amount of liquid remaining on the upper surface of the rib is reduced, and the deposited salt and the like are difficult to accumulate. Thereby, it can prevent that an opening part is clogged with the depositing salt etc., and a flow volume is restrict | limited or dripping.

  In the first and second embodiments described above, the rectifying plate is configured by three ribs, but is not particularly limited as long as it is configured by three or more ribs. For example, the rectifying plate may be composed of four ribs.

  Moreover, in said 1st and 2nd embodiment, although the width | variety and height of each rib are specified to what is shown in FIGS. 2-5, it is not specifically limited to these. The width and height of the rib can be appropriately designed according to the type of contents and intended use.

  Furthermore, in said 1st and 2nd embodiment, although the shape of each side wall is pinpointed to what is shown in FIGS. 2-6, it is not specifically limited to these. For example, the spout side walls (straight shape) shown in FIGS. 5 and 6 may be adopted in the spout shown in FIGS. 2 to 4, and conversely, the spout shown in FIGS. The side wall (tapered shape) may be adopted. Thus, the shape of the side wall is not specified by the shape of the current plate. Therefore, the shape of the side wall and the current plate can be arbitrarily selected for each according to the type of contents.

  The present invention can be used as a packaging container for contents to be used by pouring out a small amount, such as soy sauce.

DESCRIPTION OF SYMBOLS 1 Packaging container 100 Container main body 200a, 200b Outlet plug 210a, 210b Spout 211a, 211b Side wall 212 Opening ridge part 213 Flange part 214a, 214b Current plate 220 Seal member 230 Cap 231 Packing

Claims (5)

A spout stopper attached to a liquid packaging container,
A cylindrical side wall, a mouth collar provided continuously on the outer peripheral edge of one end of the side wall, a flange provided on the other end of the side wall for welding to the packaging container, and an inner side of the side wall A spout having a baffle plate provided;
A sealing member adhered to a flat surface at one end of the spout;
A cap attached to the spout;
The cross-section of the mouth collar portion in the radial direction of the spout is drawn after a convex arc extending from the outer peripheral edge of the one end of the side wall toward the other end of the side wall, and then the side wall. Having a shape defined by an outer line that bends in the radial direction and reaches the side wall,
The outlet baffle plug, wherein the baffle plate includes at least three ribs extending from a part of the inner surface of the side wall toward the central axis of the side wall and connected to each other in the vicinity of the central axis.   The spout stopper according to claim 1, wherein an inner diameter of the side wall is substantially constant from the one end to the other end of the side wall.   The spout stopper according to claim 1, wherein an inner diameter of the side wall is narrowed from the other end side to the one end side of the side wall.   The spout stopper according to claim 1, which is sandwiched between an inner surface of the cap and a tip of the spout. A liquid packaging container,
A container body;
The spout stopper according to any one of claims 1 to 4,
A packaging container in which the flange portion of the spout is welded to the inner surface of the container body in a state where the side wall of the spout is inserted into the opening of the container.

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