Container with spout

Abstract

To apply a valve function to a container with a spout using a small number of parts.SOLUTION: A container 1 with a spout comprises a flexible container body 2 in which a content is stored, and a mouth member 3 connected to an opening 2A of the container body 2. The mouth member 3 comprises a spout 10 including a communication port 11 that is open on the inner side of the container body 2 to allow the passage of the content and a discharge port 12 capable of discharging the content to outside through the communication port 11; and a valve body 20 including an extrapolation part 21 extrapolated to a communication port side end 11A of the spout 10, a shield part 22 is communicated with the extrapolation part 21 to cover the communication port 11, and a slit 23 extending in a first direction intersecting a central axis O of the communication port 11, while passing through the shield part 22. An outer peripheral face of the extrapolation part 21 is connected to the container body 2 at least in a second direction intersecting the first direction, as viewed from the central axis direction of the communication port 11.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a container with a spout. [Background technology]

[0002] Conventionally, there has been known a pouch provided with a spout with a check valve, as described in the following Patent Document 1. This pouch has a movable valve and a stopper that prevents the movable valve from falling off to the outside provided inside the spout. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-123976 A Summary of the Invention [Problem to be solved by the invention]

[0004] As in the above-mentioned conventional technology, when trying to provide a valve function to a spout, at least two parts were required: a valve (the above-mentioned movable valve) and a member for fixing the valve (the above-mentioned stopper). The materials used for such valves are often silicone rubber, which leads to increased costs.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a valve function to a spouted container using a small number of parts. [Means for solving the problem]

[0006] (1) A spout-equipped container according to the present invention comprises a flexible container body in which contents are contained, and a mouth member joined to the opening of the container body, the mouth member comprising a spout having a communication port that opens to the inside of the container body and allows the contents to pass through, and a discharge port that can discharge the contents to the outside through the communication port, and a valve body having an extrapolated portion extrapolated to the communication port side end of the spout, a shielding portion connected to the extrapolated portion and covering the communication port, and a slit that penetrates the shielding portion and extends in a first direction intersecting the central axis of the communication port, and the outer peripheral surface of the extrapolated portion is joined to the container body in at least a second direction intersecting the first direction, when viewed from the direction of the central axis of the communication port.

[0007] In the spout-equipped container according to the present invention, when the container body is squeezed, the vicinity of the opening of the container body swells due to the inflow of the contents. When the container body swells, a pulling force acts in a second direction on the valve body joined to the container body. The second direction is a direction intersecting the first direction in which the slit formed in the valve body extends, and as the container body swells, the slit widens in the second direction, causing the contents in the container body to pass through the slit and the spout and be discharged to the outside. When the container body is released from compression, the valve body restores its shape and closes the slit, preventing the contents from returning to the container body and the inflow of air, thereby improving the shelf life of the contents. In this way, with the spout-equipped container of the present invention, a valve body is inserted onto the spout, and the valve body is joined to the container body, and the slit opens and closes in response to the expansion of the container body, thereby imparting valve function to a single component, the valve body.

[0008] (2) A gap may be provided in the first direction between an outer circumferential surface of the communication port side end portion and an inner circumferential surface of the outer insertion portion.

[0009] In this case, when the valve body is pulled in the second direction as the container body expands, the valve body is more likely to contract and deform in the first direction, and the slit is more likely to open.

[0010] (3) The outer peripheral surface of the extrapolated portion may have a joint portion joined to the container body and a non-joint portion not joined to the container body, and the non-joint portions may be provided in a pair on either side of the slit in the first direction.

[0011] In this case, since the valve body is not joined to the container body on both sides in the first direction in which the slit extends, the valve body is easily pulled in the second direction as the container body expands. Effect of the Invention

[0012] According to one aspect of the present invention, a valve function can be imparted to a spouted container using a small number of parts. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram showing the configuration of a spout-equipped container according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a view of the spouted container shown in FIG. 1, viewed from below in the direction of the central axis. [Diagram 3] FIG. 2 is a side view of a spouted container according to an embodiment of the present invention when squeezed. [Figure 4] 4 is an explanatory diagram showing the state of the valve body in the state shown in FIG. 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, the spouted container of this embodiment will be described with reference to the drawings.

[0015] As shown in Fig. 1, the spouted container 1 of this embodiment comprises a flexible container body 2 in which the contents are accommodated, and a mouth member 3 joined to an opening 2A of the container body 2. Unless otherwise specified, each component part of the spouted container 1 is made of a synthetic resin. Here, "joined" means that they are fixed inseparably by means of adhesion, welding, fusion, or the like.

[0016] The container body 2 shown in Fig. 1 is a container (pouch container) in which the outer periphery of a soft packaging material (pouch) is joined into a bag shape by, for example, heat welding. Note that the container body 2 is not limited to a pouch container, and may be a tube container or a film container as long as it is flexible. A mouth member 3 is integrally joined to an opening 2A of the container body 2 by welding during the manufacturing process of the container body 2. Note that the mouth member 3 may be joined to the opening 2A by adhesion or fusion, not limited to welding.

[0017] The mouth member 3 comprises a spout 10 having a communication port 11 that communicates with the inside of the container body 2 and is open to allow the contents to pass through, and a discharge port 12 that can discharge the contents to the outside through the communication port 11, and a valve body 20 having an extrapolated portion 21 extrapolated onto the communication port side end portion 11A of the spout 10, a shielding portion 22 connected to the extrapolated portion 21 and covering the communication port 11, and a slit 23 that penetrates the shielding portion 22 and extends in a first direction intersecting the central axis O of the communication port 11.

[0018] The spout 10 and the valve body 20 described above are disposed with their respective central axes positioned on the central axis O of the communication port 11. In the following description, the direction along the central axis O is referred to as the central axis direction, the discharge port 12 side in the central axis direction is referred to as the upper side, and the communication port 11 side is referred to as the lower side. In addition, the direction perpendicular to the central axis O as viewed from the central axis direction is referred to as the radial direction, and the direction going around the central axis O is referred to as the circumferential direction. Furthermore, among the radial directions, the direction in which the slit 23 extends is referred to as the first direction, and the direction intersecting the first direction as viewed from the central axis direction is referred to as the second direction. In this embodiment, the first direction and the second direction are perpendicular to each other. Note that the first direction and the second direction do not necessarily have to be perpendicular to each other.

[0019] The spout 10 is formed into a cylindrical shape extending in the direction of the central axis. A communication port side end 11A of the spout 10 is disposed inside the container body 2. A discharge port side end 12A of the spout 10 is disposed outside the container body 2. A male thread is formed on the outer circumferential surface of the discharge port side end 12A for detachably attaching a cap (not shown). The cap closes the discharge port 12 when attached to the discharge port side end 12A.

[0020] A flange 14 is provided on the outer circumferential surface of the spout 10 below the outlet end 12A. The flange 14 extends radially outward from the outer circumferential surface of the outlet end 12A. When viewed from the central axis direction, the flange 14 has a shape obtained by cutting out parallel portions of the outer periphery of a disk as shown in Fig. 2. The cutout portions of the flange 14 are spaced apart in the second direction and extend parallel to each other along the first direction, for example, to make it easier for a user to grasp the spout 10.

[0021] As shown in FIG. 1, a sealing portion 13 is provided on the outer peripheral surface of the spout 10 below a flange 14. The sealing portion 13 is configured in a topped cylindrical shape consisting of an annular sealing portion top wall 13a and a cylindrical sealing portion peripheral wall 13b extending downward from the lower surface of the sealing portion top wall 13a. The outer shape of the sealing portion top wall 13a matches the flange 14. A plurality of joining ribs 13A for joining to the opening 2A of the container body 2 are formed on the outer peripheral surface of the sealing portion peripheral wall 13b. The multiple joining ribs 13A are spaced apart in the central axis direction on the outer peripheral surface of the sealing portion peripheral wall 13b and extend in the circumferential direction.

[0022] The sealing portion peripheral wall 13b extends radially outward beyond the outer circumferential surface of the discharge port side end 12A. The outer shape of the sealing portion peripheral wall 13b is smaller than the outer shape of the flange 14 as shown in FIG. 2. When viewed from the central axis direction, the outer shape of the sealing portion peripheral wall 13b is a spindle shape (rugby ball shape) having a major axis in the first direction and a minor axis in the second direction. When viewed from the central axis direction, the outer shape of the sealing portion peripheral wall 13b may be a circle or an ellipse.

[0023] As shown in Fig. 1, a communication port side end 11A is provided on the outer peripheral surface of spout 10 below sealing portion 13. The outer shape of communication port side end 11A is smaller than the outer shape of sealing portion peripheral wall 13b. As shown in Fig. 2, the outer shape of communication port side end 11A is a spindle shape (rugby ball shape) that is one size smaller than sealing portion peripheral wall 13b.

[0024] 1, a cutout portion S1 is formed on the lower end surface of communication port side end portion 11A to prevent sink marks when spout 10 is resin molded. Cutout portion S1 extends upward from the lower end surface of communication port side end portion 11A to the inside of sealing portion 13. A pair of cutout portions S1 are provided on either side of communication port 11 in the first direction.

[0025] The valve body 20 is fitted onto the communication port side end 11A from below, and closes the communication port 11 in an openable manner. The valve body 20 is formed in a bottomed cylindrical shape having a cylindrical outer fitting portion 21 (peripheral wall) extending in the central axis direction, and a plate-shaped shielding portion 22 (bottom wall) that closes the lower end opening of the outer fitting portion 21. The outer fitting portion 21 surrounds the outer peripheral surface of the communication port side end 11A from the radially outside.

[0026] As shown in FIG. 2, the outer shape of the outer insertion portion 21 is a spindle shape (rugby ball shape) similar to the outer shape of the sealing portion peripheral wall 13b. The outer shape of the communication port side end 11A is approximately similar to the sealing portion peripheral wall 13b with a smaller outer diameter at the lower end of the sealing portion 13. In detail, the outer shape of the communication port side end 11A has a convex curve that is convex toward the outside in the first direction at both ends in the first direction, and a concave curve on both sides of the convex curve, and the other part is circular. The outer peripheral surface of the communication port side end 11A does not have a joining rib 13A like the sealing portion peripheral wall 13b.

[0027] A gap S2 is provided in the first direction between the outer peripheral surface of the communication port side end 11A and the inner peripheral surface of the extrapolated portion 21. A pair of gaps S2 are provided on either side of the communication port side end 11A in the first direction. The outer peripheral surface of the communication port side end 11A and the inner peripheral surface of the extrapolated portion 21 are in contact with each other except for the pair of gaps S2, but are not joined to each other. It is not necessary to provide the gap S2. The outer peripheral surface of the extrapolated portion 21 is joined to the container body 2 at least in a second direction intersecting the first direction when viewed from the central axis direction of the communication port 11.

[0028] 1, the outer peripheral surface of the outer insertion portion 21 is provided with a joint portion 21A joined to the container body 2 and a non-joint portion 21B not joined to the container body 2. The outer peripheral surface of the outer insertion portion 21 is formed with a valve body side joint rib 21a similar to the joint rib 13A of the sealing portion 13. The valve body side joint rib 21a is joined to the container body 2 simultaneously with the joint rib 13A to form the joint portion 21A.

[0029] The valve body side joining rib 21a extends in the circumferential direction along the outer circumferential surface of the extrapolated portion 21, but is spaced apart at both ends in the first direction of the extrapolated portion 21. In other words, non-joining portions 21B are provided at both ends in the first direction of the extrapolated portion 21 where the valve body side joining rib 21a is spaced apart. The non-joining portions 21B are formed by the outer circumferential surface of the extrapolated portion 21 where the valve body side joining rib 21a is not provided. As shown in FIG. 2, the non-joining portions 21B are provided in a pair on either side of the slit 23 in the first direction.

[0030] The slit 23 is formed penetrating the shielding portion 22 in the central axis direction. The slit 23 extends across the communication port 11 in a first direction intersecting the central axis O. An annular protrusion 24 protruding downward is formed at the opening edge of the slit 23. The annular protrusion 24 reinforces the opening edge of the slit 23 and improves the shape stability and sealing performance of the slit 23.

[0031] Next, the case where the content is discharged from the spouted container 1 configured as described above will be described with reference to Figs. First, a cap (not shown) is removed from the mouth member 3 to open the discharge port 12 of the spout 10. Next, the container body 2 is squeezed by gripping, crushing, squeezing, handling, or the like.

[0032] When the container body 2 is squeezed, the vicinity of the opening of the container body 2 swells due to the inflow of the contents, as shown in Fig. 3. When the container body 2 swells, a tensile force acts in the second direction on the valve body 20 joined to the container body 2 in the second direction. The second direction is a direction intersecting with the first direction in which the slit 23 formed in the valve body 20 extends, as shown in Fig. 4. Then, as the container body 2 swells, the slit 23 widens in the second direction.

[0033] As slit 23 expands in the second direction, the contents in container body 2 are discharged to the outside through slit 23 and spout 10. When the compression of container body 2 is released, valve body 20 restores its original shape and closes slit 23, preventing the contents from returning to container body 2 and air from entering, improving the shelf life of the contents.

[0034] In this way, with the spout-equipped container 1 of this embodiment, the valve body 20 is extrapolated onto the spout 10, the valve body 20 is joined to the container body 2, and the slit 23 is opened and closed in accordance with the expansion of the container body 2, thereby enabling a valve function to be imparted by a single component, the valve body 20.

[0035] As described above, the spout-equipped container 1 according to this embodiment includes a flexible container body 2 in which contents are accommodated, and a mouth member 3 joined to the opening 2A of the container body 2. The mouth member 3 includes a spout 10 having a communication port 11 that opens to the inside of the container body 2 and through which the contents can pass, and a discharge port 12 that can discharge the contents to the outside through the communication port 11, and a valve body 20 having an extrapolated portion 21 that is extrapolated to the communication port side end 11A of the spout 10, a shielding portion 22 that is connected to the extrapolated portion 21 and covers the communication port 11, and a slit 23 that penetrates the shielding portion 22 and extends in a first direction that intersects with the central axis O of the communication port 11, and the outer peripheral surface of the extrapolated portion 21 is joined to the container body 2 at least in a second direction that intersects with the first direction when viewed from the central axis direction of the communication port 11. With this configuration, the spout-equipped container 1 can be given a valve function with a small number of parts.

[0036] 1 and 2, in this embodiment, a gap S2 is provided in the first direction between the outer circumferential surface of the communication port side end 11A and the inner circumferential surface of the outer insertion portion 21. With this configuration, when the valve body 20 is pulled in the second direction as the container body 2 expands, the valve body 20 tends to contract and deform in the first direction, as shown in FIG.

[0037] In this embodiment, the outer peripheral surface of the extrapolated portion 21 is provided with a joint portion 21A joined to the container body 2 and a non-joint portion 21B not joined to the container body 2, and the non-joint portions 21B are provided in a pair on either side of the slit 23 in the first direction. With this configuration, the valve body 20 is not joined to the container body 2 on both sides of the first direction in which the slit 23 extends, and therefore the valve body 20 is easily pulled in the second direction as the container body 2 expands.

[0038] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the components in the above-described embodiment can be replaced with well-known components as appropriate. [Explanation of symbols]

[0039] 1...container with spout, 2...container body, 2A...opening, 3...mouth member, 10...spout, 11...communication port, 11A...communication port side end, 12...discharge port, 12A...discharge port side end, 13...sealing portion, 13a...sealing portion top wall, 13b...sealing portion peripheral wall, 13A...jointing rib, 14...flange, 20...valve body, 21...outer insertion portion, 21a...valve body side joint rib, 21A...jointing portion, 21B...non-jointing portion, 22...shielding portion, 23...slit, 24...annular convex portion, O...center axis, S1...lightening portion, S2...gap

Claims

1. A flexible container body in which contents are accommodated; a mouth member joined to the opening of the container body, The mouth member is A spout having a communication port that opens to the inside of the container body and through which the contents can pass, and a discharge port that can discharge the contents to the outside through the communication port; The valve body includes an extrapolated portion that is extrapolated to the communication port side end of the spout, a shielding portion that is connected to the extrapolated portion and covers the communication port, and a slit that penetrates the shielding portion and extends in a first direction that intersects with the central axis of the communication port. The outer peripheral surface of the outer insertion portion is joined to the container body at least in a second direction intersecting with the first direction when viewed from the central axial direction of the communication port. Container with spout.

2. A gap is provided in the first direction between an outer circumferential surface of the communication port side end portion and an inner circumferential surface of the outer insertion portion. The spouted container according to claim 1.

3. The outer peripheral surface of the outer fitting portion is provided with a joint portion joined to the container body and a non-joint portion not joined to the container body, The non-jointed portions are provided in a pair on either side of the slit in the first direction. A spouted container according to claim 1 or 2.

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