JP7193294B2 - Dispensing spouts and packaging containers - Google Patents

Description

The present invention relates to dispensing spouts and packaging containers.

Conventionally, packaging containers having spouts for pouring have been widely used in order to facilitate pouring out of the contents (see, for example, Patent Documents 1 and 2). This type of packaging container is sometimes used as a refill container for replenishing other packaging containers with contents.

Japanese Unexamined Patent Application Publication No. 2013-203421 JP 2018-095259 A

In the packaging container, the contents may spill out during the operation of transferring the contents to another container. For example, when the packaging container is tilted and the pouring spout is aligned with the mouth of the container to be refilled, the contents may spill out.

One aspect of the present invention provides a spout for pouring and a packaging container capable of suppressing spillage of contents in an operation of pouring the contents into another container.

One aspect of the present invention is a pouring spout for pouring out the contents in a container body containing the contents, comprising: an outer cylindrical body having a flow opening for circulating the contents; An inner cylindrical body having a flow path for guiding contents introduced from a mouth and provided inside the outer cylindrical body; To provide a spout for pouring which is slidable with respect to a cylindrical body in a direction approaching the flow port, and displaces the lid part by the sliding movement to open the flow port.

The inner cylindrical body has an annular bottom wall and an inner peripheral wall protruding from the bottom wall along the axial direction of the outer cylindrical body. It is preferable to let

It is preferable that a plurality of contact protrusions be formed on the inner bottom surface of the bottom wall at intervals in the circumferential direction.

It is preferable that the inner cylinder has an outer peripheral wall that protrudes from the bottom wall along the axial direction of the outer cylinder.

It is preferable that the lid portion is connected to the outer cylindrical body via a connecting member.

Another aspect of the present invention provides a packaging container including the pouring spout and the container body.

ADVANTAGE OF THE INVENTION According to 1 aspect of this invention, it can suppress that the content spills out in the operation|work which pours a content into another container.

It is a partial cross-sectional view of the packaging container of the embodiment. FIG. 2 is a cross-sectional view of a pouring spout of the packaging container shown in FIG. 1; 3 is an enlarged view of a portion of the pouring spout shown in FIG. 2; FIG. 3 is an exploded cross-sectional view of the pouring spout shown in FIG. 2; FIG. Figure 3 is a plan view of the dispensing spout shown in Figure 2; Figure 3 is a perspective view of the pouring spout shown in Figure 2 as viewed from one side; 3 is a perspective view of the pouring spout shown in FIG. 2 as viewed from the other side; FIG. FIG. 2 is an overall perspective view of the packaging container shown in FIG. 1; It is sectional drawing explaining the usage method of the packaging container shown in FIG. FIG. 10 is a cross-sectional view for explaining the usage following FIG. 9; It is the figure which expanded a part of spout for pouring shown in the previous figure. FIG. 11 is a cross-sectional view for explaining the usage following FIG. 10 ; It is the figure which expanded a part of spout for pouring shown in the previous figure.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing used for the following description, the scale of each member may be appropriately changed in order to make each member recognizable.

[Packaging container of embodiment]
FIG. 1 is a partial cross-sectional view of the packaging container 1 of the embodiment. FIG. 2 is a sectional view of the pouring spout 2 of the packaging container 1. FIG. FIG. 3 is an enlarged view of a portion of the pouring spout 2. As shown in FIG. FIG. 4 is an exploded sectional view of the pouring spout 2. As shown in FIG. FIG. 5 is a plan view of the pouring spout 2. FIG. FIG. 6 is a perspective view of the pouring spout 2 viewed from one side. FIG. 7 is a perspective view of the pouring spout 2 viewed from the other side. FIG. 8 is an overall perspective view of the packaging container 1. FIG.

As shown in FIG. 8 , the packaging container 1 includes a pouring spout 2 and a container body 50 . The container body 50 includes a top film 51 , a front film 52 , a back film 53 and a bottom film 54 . The top film 51 forms the top part of the container body 50 . The front film 52 and the back film 53 form the body of the packaging container 1 . The front film 52 and the back film 53 are joined together with their side edges overlapped. The bottom film 54 forms the bottom portion of the packaging container 1 .

The packaging container 1 filled with the contents can stand with the bottom film 54 facing downward (upright state). The contents are not particularly limited, but are liquids, for example.

As the films used as the top film 51, the front film 52, the back film 53 and the bottom film 54, for example, a laminate having a base film and a sealant layer is used. The base film is composed of, for example, biaxially oriented polypropylene, biaxially oriented polyamide, biaxially oriented polyester, or the like. The sealant layer is made of, for example, polyolefin resin such as low density polyethylene, linear low density polyethylene, ethylene-vinyl acetate copolymer, and polypropylene. The films used as the top film 51, the front film 52, the back film 53 and the bottom film 54 are flexible.

As shown in FIG. 1 , the pouring spout 2 includes a spout body 3 and a cap 4 . As shown in FIGS. 2 and 4 , the spout body 3 includes an outer cylindrical body 5 , an inner cylindrical body 6 and a lid portion 7 . The outer tubular body 5 includes a base portion 8 and a pouring tubular portion 9 . The X direction is the lengthwise direction of the base 8 . The Y direction is the width direction of the base 8 . The Z direction is the thickness direction of the base 8 . As shown in FIG. 8 , the spout body 3 is provided in the central portion of the top film 51 . The position of the spout body is not limited to the central portion of the top film.

As shown in FIGS. 1 and 2, the base 8 is generally formed in a rectangular plate shape (see FIG. 6). The base portion 8 is formed to protrude outward (in the X direction and the Y direction) with respect to the base end 9a of the extraction tube portion 9, for example. As shown in FIG. 1 , the first surface 8 a of the base 8 is bonded to the inner surface of the top film 51 .
The pouring tube portion 9 is cylindrical. The pouring tube portion 9 protrudes in the Z direction (upward in FIG. 1) from the first surface 8a (upper surface in FIG. 1) of the base portion 8. As shown in FIG. C1 in FIGS. 1 and 2 is the central axis of the extraction cylinder part 9. As shown in FIG. In addition, the shape of the base 8 is not limited to a rectangle, and may be a circle, an ellipse, or the like.

As shown in FIGS. 4 and 7, a flow port 10a communicating with the internal space of the spout body 3 is formed in the center of the second surface 8b (surface opposite to the first surface 8a; see FIG. 2) of the base 8. ing. A channel 10 shown in FIG. 2 is a channel inside the inner cylindrical body 6 and is formed from the flow port 10 a to the tip of the pouring cylinder portion 9 . The flow path 10 allows the contents of the container body 50 to be discharged to the outside from a discharge port 9 b that is an opening at the tip of the discharge tube portion 9 . As shown in FIG. 1 , a threaded portion 13 is formed on the outer peripheral surface of the pouring tube portion 9 .

As shown in FIGS. 4 to 6, the inner cylinder 6 is provided inside the outer cylinder 5 . As shown in FIGS. 4 and 5 , the inner cylindrical body 6 includes a bottom wall 21 , an inner peripheral wall 22 , an outer peripheral wall 23 and a plurality of locking portions 24 . The bottom wall 21 is formed in the shape of an annular plate having a circular circulation port 21a in the center. The central axis of the bottom wall 21 coincides with the central axis C<b>1 of the pouring tube portion 9 .

A plurality of ribs 25 (contact protrusions) are formed on the inner bottom surface 21b of the bottom wall 21 . The ribs 25 are protrusions extending in the radial direction of the bottom wall 21 . The rib 25 protrudes from the inner bottom surface 21b (upper surface in FIG. 4) toward the distal end of the inner tubular body 6 (upward in FIG. 4). As shown in FIG. 5 , the plurality of ribs 25 are formed at intervals in the circumferential direction of the bottom wall 21 .

As shown in FIG. 4, the inner peripheral wall 22 includes a first projecting portion 22A and a second projecting portion 22B. The first projecting portion 22A has a cylindrical shape projecting from the inner peripheral edge of the bottom wall 21 in the proximal direction (downward in FIG. 4). The second protruding portion 22B has a cylindrical shape protruding from the inner peripheral edge of the bottom wall 21 toward the tip of the inner cylindrical body 6 (upward in FIG. 4). The first projecting portion 22A and the second projecting portion 22B have the same diameter. The central axis of the first protruding portion 22A and the second protruding portion 22B coincides with the central axis C1 of the extraction tube portion 9 .

A plurality of pressing protrusions 33 are formed at the base end portion (lower end portion in FIG. 4) of the first projection portion 22A. The pressing protrusion 33 protrudes in the proximal direction (downward in FIG. 4) from the proximal end of the first protrusion 22A. The plurality of pressing protrusions 33 are formed at intervals in the circumferential direction of the first protrusion 22A. A space between adjacent pressing protrusions 33 , 33 is called a recessed space 34 .

The outer peripheral wall 23 has a cylindrical shape and protrudes from the outer peripheral edge of the bottom wall 21 toward the distal end of the inner cylindrical body 6 (upward in FIG. 4). The central axis of the outer peripheral wall 23 coincides with the central axis C<b>1 of the extraction tube portion 9 . The outer peripheral wall 23 is spaced apart from the inner peripheral wall 22 .

As shown in FIG. 3, the plurality of locking portions 24 are provided on the outer peripheral surface of the outer peripheral wall 23 at intervals in the circumferential direction. The locking portion 24 includes a base portion 26 and a latch arm 27 extending upward from the base portion 26 . The latch arm 27 is elastically bendable in the radial direction. When the inner cylinder 6 is inserted into the outer cylinder 5 , the latch arm 27 climbs over the locking projection 28 on the inner peripheral surface of the pouring cylinder 9 and locks it to the locking projection 28 . As a result, the upward movement of the inner cylindrical body 6 is restricted. The latch arm 27 restricts downward movement of the inner cylinder 6 by a frictional force against the inner peripheral surface of the extraction cylinder 9 .

As shown in FIG. 7, the lid portion 7 closes the flow port 10a so as to be openable and closable. The lid portion 7 is formed in a disc shape, for example. The lid portion 7 may be separate from the base portion 8 or may be formed integrally with the base portion 8 . The outer diameter of the lid portion 7 is substantially equal to the inner diameter of the flow port 10a. Therefore, the flow port 10a is closed by fitting the cover portion 7 into the flow port 10a. This form of the lid portion 7 is called a "closed form". When the lid portion 7 is removed from the flow port 10a, the channel 10 is opened. This form of the lid portion 7 is called an "open form".

The lid portion 7 may be connected to the base portion 8 via a connecting member 29 . The connecting member 29 is, for example, a belt-like connecting body that connects the lid portion 7 and the base portion 8 . The connecting member 29 is bendable in the thickness direction. The lid portion 7 and the connecting member 29 may be formed integrally with the base portion 8 .

As shown in FIG. 1 , the cap 4 includes a main plate portion 14 and a tubular portion 15 . The main plate portion 14 is formed in a disc shape. The cylindrical portion 15 is formed in a cylindrical shape extending from the peripheral portion of the main plate portion 14 . A threaded portion (not shown) that is screwed into the threaded portion 13 is formed on the inner peripheral surface of the tubular portion 15 . The cap 4 closes the spout 9 b by the inner surface of the main plate portion 14 abutting against the tip of the spout tube portion 9 .

The spout body 3 and the cap 4 are molded from resin such as polyethylene and polypropylene. As the resin, a petroleum-derived resin, a plant-derived resin, or the like can be used. The constituent material of the spout body 3 and the cap 4 is not limited to resin as long as it is a moldable material.

[Other packaging containers]
As shown in FIG. 9, the packaging container 30 to be refilled is a container that is replenished with the contents accommodated in the packaging container 1 (see FIG. 1) and used. The packaging container 30 includes a container body 31 and a mouth part 40 for pouring out the contents. The mouth portion 40 protrudes upward from the container body 31 . The mouth portion 40 is generally formed in a cylindrical shape. The internal space of the mouth portion 40 is a channel that guides the contents into the container body 31 .

[How to use the packaging container of the embodiment]
9 and 10 are cross-sectional views explaining how to use the packaging container 1. FIG. FIG. 11 is an enlarged view of a portion of the pouring spout 2. FIG. FIG. 12 is a cross-sectional view for explaining how to use the packaging container 1. As shown in FIG. FIG. 13 is an enlarged view of a portion of the pouring spout 2. FIG. An example of how to use the packaging container 1 will be described with reference to FIGS. 9 to 13. FIG. In detail, a method of refilling the packaging container 30 with the contents housed in the packaging container 1 (that is, a method of refilling the packaging container 30 with the contents) will be described.

As shown in FIG. 9, the cap 4 (see FIG. 1) is removed from the dispensing spout 2, and the packaging container 1 is placed in an inverted state (with the spout body 3 positioned below the container body 50). In this state, since the lid portion 7 closes the flow port 10a, the contents contained in the packaging container 1 are not poured out. Although the packaging container 1 is in an inverted state in FIG. 9, the packaging container 1 is tilted between an upright state (a state in which the spout body 3 is positioned above the container body 50) and an inverted state. state.

Next, as shown in FIGS. 10 and 11 , the spout body 3 of the packaging container 1 is fitted to the mouth portion 40 of the packaging container 30 . The mouth portion 40 is inserted into the outer cylindrical body 5 . 10 and 11, the lid portion 7 is in a state of closing the flow port 10a. The position of the inner cylindrical body 6 in FIGS. 10 and 11 is called "first position P1".

As shown in FIGS. 12 and 13 , the spout body 3 of the packaging container 1 is advanced toward the mouth portion 40 . The tip of the mouth portion 40 hits the rib 25 . When the spout body 3 is further advanced, the tip of the mouth portion 40 presses the rib 25, so that the outer cylinder 5 descends while the inner cylinder 6 maintains its height position. That is, the inner cylindrical body 6 slides upward relative to the outer cylindrical body 5 . As a result, the base end portion of the inner peripheral wall 22 (the upper end of the first projecting portion 22A; more specifically, the pressing projection portion 33) presses the lid portion 7 toward the container body 50 (upward in FIGS. 12 and 13). As a result, the lid portion 7 is removed from the flow port 10a. The flow port 10a is opened by removing the lid portion 7. As shown in FIG.

The position of the inner cylindrical body 6 in FIGS. 12 and 13 is called "second position P2". The second position P2 is the position of the inner tubular body 6 closer to the container body 50 than the first position P1. At the second position P2, the tip portion of the pressing convex portion 33 may protrude from the second surface 8b of the base portion 8 toward the container body 50 side.

Since the pressing projections 33 are formed at intervals in the circumferential direction of the first projection 22A, even if the lid portion 7 is in contact with the tip of the pressing projection 33, the content can be pushed through the recessed space 34. distribution is possible. Therefore, when the inner cylindrical body 6 is at the second position P2, the lid portion 7 does not close the tip opening of the first projecting portion 22A.

As shown in FIG. 12, the contents of the packaging container 1 flow into the flow path 10 through the distribution port 10a, flow through the flow path 10, flow out from the outlet 9b, and flow through the mouth portion 40 into the container body 31 of the packaging container 30. influx. Thereby, the contents of the packaging container 1 can be transferred to the packaging container 30 .
At this time, since the tip of the mouth portion 40 contacts the rib 25, a gap is secured between the tip of the mouth portion 40 and the inner bottom surface 21b. Therefore, as indicated by the arrow in FIG. 13, air can be discharged from the inside of the spout body 3 to the outside through the gap, so that the refilling operation can be performed in a short time.

The packaging container 1 aligns the spout body 3 with the mouth portion 40 of the packaging container 30, and maintains the closed state (see FIG. 11) until the mouth portion 40 presses the inner cylindrical body 6 to open the flow opening 10a. can. Therefore, it is possible to prevent the contents from spilling out during the operation of pouring the contents into the other packaging container 30 .

In the packaging container 1, the diameters of the pouring tubular portion 9 and the outer peripheral wall 23 can be made larger than the diameter of the mouth portion 40, so that the flow path 10 having a sufficient inner diameter can be secured. Therefore, in the work of refilling the contents into another packaging container 30, the flow rate of the contents can be increased, and the time required for the refilling work can be shortened.
Since the inner cylindrical body 6 of the packaging container 1 has the outer peripheral wall 23, the inner cylindrical body 6 slides while maintaining its posture. Therefore, the inner cylindrical body 6 can be stably operated.

DESCRIPTION OF SYMBOLS 1... Packaging container, 2... Spout for pouring, 5... Outer cylindrical body, 6... Inner cylindrical body, 7... Cover part, 10a... Distribution port, 10... Flow path, 21... Bottom wall, 21b... Inner bottom surface, 22 Inner peripheral wall 23 Outer peripheral wall 25 Rib (abutting projection) 29 Connecting member 50 Container body.

Claims (5)

A pouring spout for pouring out the contents in a container body containing the contents,
an outer cylindrical body having a flow port through which the contents flow;
an inner cylindrical body provided inside the outer cylindrical body having a flow path for guiding the content introduced from the flow port;
and a lid portion that closes the flow port,
the inner cylindrical body is slidable relative to the outer cylindrical body in a direction approaching the flow opening, and the sliding movement displaces the lid to open the flow opening;
The inner cylindrical body includes an annular bottom wall and an inner peripheral wall protruding from the bottom wall along the axial direction of the outer cylindrical body,
A plurality of pressing projections are formed on the inner peripheral wall for pressing and displacing the lid by the sliding movement,
The spout for pouring , wherein the plurality of pressing protrusions are formed at intervals in the circumferential direction of the inner peripheral wall . 2. The spout for pouring according to claim 1 , wherein a plurality of abutment protrusions are formed on the inner bottom surface of the bottom wall at intervals in the circumferential direction. The spout for pouring according to claim 1 or 2 , wherein the inner cylindrical body has an outer peripheral wall that protrudes from the bottom wall along the axial direction of the outer cylindrical body. The spout for pouring according to any one of claims 1 to 3 , wherein the lid portion is connected to the outer cylindrical body via a connecting member. A packaging container comprising the pouring spout according to any one of claims 1 to 4 and the container body.

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