JP2023050213A - Spout cap - Google Patents

Abstract

To shorten the time from turning a pouring hole downward to pouring out a content liquid even if the content liquid has a high viscosity, for example.SOLUTION: A spout cap is provided with a topped cylindrical mounting cylindrical part 11 having a top wall 16 mounted on a mouth part W1 of a container body W storing a content liquid; a cover plate part 12 arranged on the upper surface of the top wall and formed with a pouring hole 18 for the content liquid; and a first hinge part 13 that connects the mounting cylindrical part and the cover plate part to each other. The mounting cylindrical part, the cover plate part, and the first hinge part are integrally formed. A communication hole 21 that opens toward the pouring hole, and a bottomed cylindrical storage cylindrical part 22 extending downward from the opening peripheral edge of the communication hole in the lower surface of the top wall are formed in the top wall. An introduction hole 23 is formed in the peripheral wall of the storage cylindrical part to allow the inside of the storage cylindrical part and the inside of the container body to communicate with each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to spout caps.

2. Description of the Related Art Conventionally, a pouring cap having a pouring hole for a content liquid is known, for example, as shown in Patent Document 1 below.

JP 2019-043575 A

With a conventional pouring cap, when pouring out high-viscosity liquid such as milky lotion, it takes time to pour out the liquid after the pouring hole is turned downward, especially when the remaining amount is low. There's a problem.
In order to solve this problem, if the container is stored with the pouring hole facing downward, the liquid content will immediately pour out from the pouring hole when the lid is opened, causing new problems such as the liquid spilling out. occurs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a spout cap capable of shortening the time from when the spout hole is directed downward until the content liquid is poured out, even if the content liquid has a high viscosity. .

A pouring cap according to an aspect of the present invention is attached to the mouth of a container body containing a content liquid, and has a capped cylindrical attachment tube portion having a top wall, and is arranged on the upper surface of the top wall. and a lid plate portion in which a content liquid pouring hole is formed, and a first hinge portion that connects the mounting cylinder portion and the lid plate portion to each other, , and the first hinge portion are integrally formed, and are provided in the top wall with a communicating hole that opens toward the pouring hole, and downward from the opening peripheral edge portion of the communicating hole on the lower surface of the top wall. A bottomed cylindrical storage tube part extending is formed, and an introduction hole is formed in the peripheral wall of the storage tube part so as to allow the inside of the storage tube part and the inside of the container body to communicate with each other.

When the pouring hole is directed downward, the content liquid in the container main body passes through the introduction hole, the inside of the storage cylinder part, and the communicating hole in this order and is poured out from the pouring hole. After that, when the pouring hole is directed upward, most of the content liquid that has reached the inside of the storage cylinder part does not return into the container main body through the introduction hole and remains inside the storage cylinder part. As a result, when the content liquid is poured out next time, when the pouring hole is directed downward, the content liquid in the container main body is newly supplied into the storage tube portion through the introduction hole, and the content liquid inside the storage tube portion at the time of the previous pouring is supplied. Therefore, even if the content liquid is highly viscous, the time from turning the pouring hole downward to pouring out the content liquid can be shortened. be able to.
Since the storage cylinder part and the communication hole are formed in the mounting cylinder part, not in the cover plate part in which the pouring hole is formed, for example, the inner diameters of the storage cylinder part and the communicating hole are made smaller than the inner diameter of the pouring hole. Even if the internal volume of the storage cylinder portion is increased, the spout cap can be easily molded while preventing the mold structure from becoming complicated.

The inner diameter of the communicating hole may be larger than the inner diameter of the pouring hole.

Since the inner diameter of the communicating hole is larger than the inner diameter of the pouring hole, it is possible to ensure a large internal volume of the storage cylinder.

The storage cylinder portion includes an upper cylinder portion extending downward from the lower surface of the top wall, and a bottomed cylinder-shaped lower cylinder positioned below the upper cylinder portion and having a diameter smaller than that of the upper cylinder portion. and a middle cylinder portion connecting the upper cylinder portion and the lower cylinder portion to each other and extending radially inward as it goes downward, wherein the introduction hole is formed in the middle cylinder portion. good too.

Since the introduction hole is formed in the middle cylindrical portion extending inward in the radial direction as it goes downward, it is easy for the content liquid in the container body to enter the introduction hole when the pouring hole is oriented downward. can do.

An outer lid portion that opens and closes an upper surface of the lid plate portion is provided, and the outer lid portion is connected to the lid plate portion via a second hinge portion, and includes the mounting cylinder portion, the lid plate portion, and the first hinge. The portion, the outer lid portion, and the second hinge portion may be integrally formed.

Since the mounting tube portion, the lid plate portion, the first hinge portion, the outer lid portion, and the second hinge portion are integrally formed, the number of parts can be reduced.

According to this invention, even if the content liquid has a high viscosity, it is possible to shorten the time from when the pouring hole is turned downward until the content liquid is poured out.

1 is a longitudinal cross-sectional view of a pour cap, shown in one embodiment; FIG. In FIG. 1, it is a figure which shows the state which is pouring out the content liquid.

Hereinafter, a pouring cap according to one embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the pouring cap 1 according to this embodiment includes a mounting tube portion 11, a lid plate portion 12, a first hinge portion 13, an outer lid portion 14, and a second hinge portion 15. . The mounting tube portion 11, the lid plate portion 12, the first hinge portion 13, the outer lid portion 14, and the second hinge portion 15 are integrally formed.
Note that the outer lid portion 14 and the second hinge portion 15 may not be provided. The outer lid portion 14 may be detachably screwed to the mounting cylinder portion 11 or the lid plate portion 12 .

The mounting cylinder portion 11 and the cover plate portion 12 are arranged coaxially with the common axis. Hereinafter, the common axis will be referred to as a cap axis O, the lid plate portion 12 side along the cap axis O will be referred to as an upper side, the mounting cylinder portion 11 side will be referred to as a lower side, and the direction along the cap axis O will be referred to as a vertical direction. , the direction crossing the cap axis O when viewed from above and below is called the radial direction, and the direction rotating around the cap axis O is called the circumferential direction.

The mounting tube portion 11 is mounted on the mouth portion W1 of the container body W containing the content liquid. The mounting tubular portion 11 is formed in a capped tubular shape having a top wall 16 and a peripheral wall 17 . A female threaded portion is formed on the inner peripheral surface of the peripheral wall 17 to be screwed with a male threaded portion formed on the outer peripheral surface of the mouth portion W1. The peripheral wall 17 is formed in a double tube shape having an inner tube and an outer tube, and a female threaded portion is formed on the inner peripheral surface of the inner tube of the peripheral wall 17 .

The cover plate portion 12 is connected to the mounting cylinder portion 11 via the first hinge portion 13 . The first hinge portion 13 connects the outer peripheral edge portion of the cover plate portion 12 and the upper end portion of the peripheral wall 17 of the mounting cylinder portion 11 . The cover plate portion 12 is arranged on the upper surface of the top wall 16 of the mounting cylinder portion 11 . The lid plate portion 12 is formed with a pouring hole 18 for the content liquid. The pouring hole 18 penetrates the cover plate portion 12 in the vertical direction. The central axis of the pouring hole 18 is separated from the cap axis O toward the first hinge portion 13 side. Note that the central axis of the pouring hole 18 may coincide with the cap axis O, for example. A pouring tube 12a is formed on the upper surface of the cover plate portion 12 and protrudes upward from the periphery of the opening of the pouring hole 18 . The diameter of the dispensing tube 12a increases upward. Note that the extraction tube 12a may not be provided.

The outer lid portion 14 is connected to the cover plate portion 12 via a second hinge portion 15 to open and close the upper surface of the cover plate portion 12 . The outer lid portion 14 is formed in a capped cylindrical shape, and a plug cylinder 14 a that protrudes downward and is detachably fitted in the pouring hole 18 is formed on the top wall. A lower end portion of the stopper tube 14 a protrudes downward from the lower surface of the cover plate portion 12 . A surrounding tube 14b is formed on the top wall of the outer lid portion 14 so as to protrude downward and surround the pouring tube 12a from the outside in the radial direction. The inner peripheral surface of the surrounding tube 14b is separated radially outward from the outer peripheral surface of the pouring tube 12a. The lower end of the surrounding tube 14b is located above the lower end of the plug tube 14a. A lower end portion of the surrounding cylinder 14b is separated upward from the upper surface of the cover plate portion 12 .

The second hinge portion 15 connects the lower end portion of the peripheral wall of the outer lid portion 14 and the outer peripheral edge portion of the lid plate portion 12 . The second hinge portion 15 is provided on the opposite side of the first hinge portion 13, sandwiching the cap axis O in the radial direction. The second hinge portion 15 includes an elastic connecting piece 15a capable of holding the outer lid portion 14 in a posture in which the upper surface of the lid plate portion 12 is opened. The elastic connecting piece 15a is formed in a bent plate shape so as to protrude radially outward. In the process of rotating the outer lid portion 14 upward around the second hinge portion 15, the elastic connecting piece 15a is reversely deformed, so that the outer lid portion 14 holds the upper surface of the lid plate portion 12 in an open posture. be done.

Here, the top wall 16 of the mounting tubular portion 11 is formed with a communication hole 21 and a storage tubular portion 22 .

The communication hole 21 penetrates the top wall 16 in the vertical direction and opens toward the pouring hole 18 of the cover plate portion 12 . The communication hole 21 is arranged coaxially with the cap axis O. As shown in FIG. Note that the central axis of the communication hole 21 may be separated from the cap axis O. The inner diameter of the communication hole 21 is larger than the inner diameter of the pouring hole 18 . The entire pouring hole 18 is located inside the communicating hole 21 when viewed from above and below. A seal cylinder 12 c protruding downward from the lower surface of the cover plate portion 12 is fitted in the communication hole 21 .

The storage cylinder part 22 is formed in a bottomed cylinder shape and extends downward from the opening peripheral edge of the communication hole 21 on the lower surface of the top wall 16 . A radial gap is provided between the outer peripheral surface of the peripheral wall of the storage tube portion 22 and the inner peripheral surface of the inner tube of the peripheral wall 17 of the mounting tube portion 11 . The storage tube portion 22 is arranged coaxially with the cap axis O. As shown in FIG. Note that the central axis of the storage tube portion 22 may be separated from the cap axis O.

An introduction hole 23 is formed in the peripheral wall of the storage tube portion 22 to allow the inside of the storage tube portion 22 and the inside of the container body W to communicate with each other. The introduction hole 23 is provided in the vertical central portion of the storage tube portion 22 .
The storage cylinder part 22 includes an upper cylinder part 24 , a lower cylinder part 25 and a middle cylinder part 26 .

The upper tubular portion 24 extends downward from the lower surface of the top wall 16 . The upper end portion of the upper cylindrical portion 24 is liquid-tightly fitted in the mouth portion W1. A portion of the upper cylindrical portion 24 located below the upper end portion is slightly spaced radially inward from the inner peripheral surface of the mouth portion W1.

The lower tubular portion 25 is formed in a bottomed tubular shape. The lower tubular portion 25 is located below the upper tubular portion 24 and has a smaller diameter than the upper tubular portion 24 . A lower end portion of the lower cylindrical portion 25 protrudes downward from the mouth portion W1. Note that the entire lower tubular portion 25 may be positioned within the mouth portion W1. The vertical sizes of the lower tubular portion 25 and the upper tubular portion 24 are substantially the same. The lower tubular portion 25 extends radially inward as it goes downward. The inner side of the lower cylindrical portion 25 faces the entire pouring hole 18 in the vertical direction. Note that the lower tubular portion 25 may be radially separated from the pouring hole 18 .

The middle tubular portion 26 connects the upper tubular portion 24 and the lower tubular portion 25 to each other, and extends radially inward as it goes downward. The inclination angle of the middle tubular portion 26 with respect to the cap axis O is larger than the inclination angle of the peripheral wall of the lower tubular portion 25 with respect to the cap axis O. As shown in FIG. The entire middle tube portion 26 is positioned within the mouth portion W1. An introduction hole 23 is formed in the middle tube portion 26 .

A plurality of introduction holes 23 are provided at intervals in the circumferential direction. The introduction hole 23 is provided over the entire length of the middle tube portion 26 in the vertical direction. The introduction hole 23 has a rectangular shape elongated in the circumferential direction when viewed from above. One of the plurality of introduction holes 23 is provided on the opposite side of the first hinge portion 13 with the cap axis O sandwiched therebetween in the radial direction.

Next, the action of the spout cap 1 will be described.

As shown in FIG. 2, the outer lid portion 14 is rotated upward with respect to the mounting cylinder portion 11 and the lid plate portion 12 around the second hinge portion 15 to open the pour hole 18 and When the exit hole 18 is directed downward, the content liquid in the container main body W flows through the outer peripheral surfaces of the lower tubular portion 25 and the middle tubular portion 26 of the storage tubular portion 22, the inner peripheral surface of the mouth portion W1, and enter the introduction hole 23 . After that, the content liquid passes through the storage cylinder portion 22 and the communication hole 21 in this order and is poured out from the pouring hole 18 .

Next, when the pouring hole 18 is directed upward, most of the content liquid that has reached the storage cylinder part 22 does not return to the container main body W through the introduction hole 23, and is stored as shown in FIG. It remains in the lower tubular portion 25 of the tubular portion 22 . As a result, when the content liquid is to be poured out next time, when the pouring hole 18 is directed downward, the content liquid in the container main body W is newly supplied into the storage tube portion 22 through the introduction hole 23, while the content liquid from the previous pouring is removed. The content liquid stored in the storage cylinder part 22 is poured out from the pouring hole 18 at the time of pouring out.

As described above, according to the pouring cap 1 according to the present embodiment, even if the content liquid has high viscosity, the time from turning the pouring hole 18 downward to pouring out the content liquid can be shortened. can be suppressed.

Since the storage cylinder part 22 and the communication hole 21 are formed in the mounting cylinder part 11 instead of the cover plate part 12 in which the pouring hole 18 is formed, for example, the respective inner diameters of the storage cylinder part 22 and the communication hole 21 are Even if the inner diameter of the pouring hole 18 is larger than that of the pouring hole 18 to increase the inner volume of the storage cylinder part 22, the pouring cap 1 can be easily formed while preventing the mold structure from becoming complicated.

Since the inner diameter of the communication hole 21 is larger than the inner diameter of the pouring hole 18, a large internal volume of the storage cylinder part 22 can be ensured.

Since the introduction hole 23 is formed in the middle tubular portion 26 that extends radially inward as it goes downward, when the pouring hole 18 is directed downward, the content liquid in the container body W is introduced through the hole. 23 can be made easier to enter.

Since the mounting tube portion 11, the lid plate portion 12, the first hinge portion 13, the outer lid portion 14, and the second hinge portion 15 are integrally formed, the number of parts can be reduced.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, the diameter of the storage cylinder part 22 may be the same over the entire length in the vertical direction.
The storage tube portion 22 may be separated radially inward from the inner peripheral surface of the mouth portion W1 over the entire length in the vertical direction.

The upper tubular portion 24 may be fitted into the mouth portion W1 of the container body W over the entire length in the vertical direction.
In this case, when the pouring hole 18 is directed downward, the content liquid in the container main body W is allowed to smoothly enter the introduction hole 23 without passing through the outer peripheral surface of the middle cylindrical portion 26 to the upper cylindrical portion 24 side. be able to.
The outer diameter of the upper cylindrical portion 24 is made smaller than the inner diameter of the mouth portion W1, the inner diameter of the upper cylindrical portion 24 is made larger than the inner diameter of the pouring hole 18, and a downward A seal cylinder may be provided that protrudes and is liquid-tightly fitted into the opening W1.

In addition, it is possible to appropriately replace the constituent elements in the above embodiments with known constituent elements without departing from the scope of the present invention, and the above embodiments and the above modifications may be combined as appropriate.

Reference Signs List 1 spout cap 11 mounting tube portion 12 cover plate portion 13 first hinge portion 14 outer lid portion 15 second hinge portion 16 top wall 18 spout hole 21 communication hole 22 storage tube portion 23 introduction hole 24 upper tube portion 25 lower tube Part 26 Middle cylindrical part W Container main body W1 Mouth part

Claims (4)

a capped cylindrical mounting tube portion having a top wall and being attached to the mouth portion of the container body containing the content liquid;
a cover plate portion disposed on the upper surface of the top wall and formed with an outlet hole for the content liquid;
a first hinge portion that connects the mounting cylinder portion and the cover plate portion to each other;
The mounting cylinder portion, the cover plate portion, and the first hinge portion are integrally formed,
on the top wall;
a communicating hole that opens toward the pouring hole;
a bottomed cylindrical storage cylinder extending downward from the opening peripheral edge of the communication hole on the lower surface of the top wall,
A pouring cap, wherein an introduction hole is formed in the peripheral wall of the storage cylinder portion so as to allow the inside of the storage cylinder portion and the inside of the container body to communicate with each other. 2. The spout cap according to claim 1, wherein the inner diameter of said communicating hole is larger than the inner diameter of said spout hole. The storage cylinder part is
an upper tubular portion extending downward from the lower surface of the top wall;
a bottomed tubular lower tubular portion positioned below the upper tubular portion and having a diameter smaller than that of the upper tubular portion;
a middle tubular portion connecting the upper tubular portion and the lower tubular portion to each other and extending radially inward as it goes downward;
3. The pouring cap according to claim 1, wherein said introduction hole is formed in said middle cylindrical portion. An outer lid portion that opens and closes the upper surface of the lid plate portion,
The outer lid portion is connected to the lid plate portion via a second hinge portion,
4. The note according to any one of claims 1 to 3, wherein the mounting tube portion, the cover plate portion, the first hinge portion, the outer lid portion, and the second hinge portion are integrally formed. exit cap.

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