KR101161317B1 - Vessel having double packing for double cap - Google Patents

Abstract

According to the present invention, after the first injection molding of the lower cap, the annular first and second packing portions connected through the packing connection portion of the vertical tunnel structure are connected to the inner upper end of the cylindrical body of the lower cap and the upper upper end of the second neck. By the secondary injection molding integrally with the sealant, the sealing part with the container and the sealing part with the upper cap can be blocked at the same time. It relates to a double cap leakage preventing container that does not occur at all. The double cap leakage preventing container for this purpose, and a container in which the contents are accommodated; A lower cap comprising a first cylindrical body, a shoulder, and a second neck portion having an annular first insertion groove portion into which the first neck portion of the container is inserted; An upper cap having a second cylindrical body having an annular second insertion groove portion into which the second neck portion of the lower cap is fastened; A first packing part of the annular shape that is in close contact with an upper end of the first neck part of the container and integrally double injection-molded into an upper inner surface of the first insertion groove part of the annular shape; 2 an annular second packing part which is integrally double-injected molded at the upper end of the neck part and closely adhered to an inner surface of the second insertion groove part of the annular part; and the first and second packing parts are perpendicular to each other. It consists of a packing connection to connect.

Description

Double cap leak prevention container {VESSEL HAVING DOUBLE PACKING FOR DOUBLE CAP}

The present invention relates to a double cap leakage preventing container, and more particularly, after the first injection molding of the lower cap, the annular first and second packing portions connected through the packing connection of the vertical tunnel structure of the lower cap By integrally injection molding the inner upper end of the cylindrical body and the upper end of the upper part of the second neck, the sealing part with the container and the sealing part with the upper cap can be blocked at the same time. It relates to a double cap leakproof container that is completely sealed and no leakage occurs due to pressing.

Generally, a closed container having a packing material therein is used as a container for blocking various liquid contents such as cosmetics in a plastic container, cleaning cosmetics for a bathroom, kitchen detergent, and the like.

In such a conventional closed container structure, the upper surface of the container body and the lower surface of the packing contact each other so that the contents of the container are not leaked by the packing when the plastic cap is engaged.

That is, the foamed packing is inserted into the plastic cap of the conventional hermetic container, and the plastic container and the cap are coupled to each other, thereby preventing the leakage of liquid while the packing and the cap are compressed.

Moreover, in the structure of the double cap which consists of upper and lower caps, sealing is prevented from leaking by the mutual interference fitting structure between the upper and lower caps.

However, in the structure of the conventional hermetic container, the plastic cap, the plastic container, and the foam packing are all molded separately, and the foam packing is inserted into the plastic cap, so that the packing is not inserted into the cap during manual assembly. In addition, there was a limit to the interception of the leakage of the mutual interference between the upper and lower caps.

In addition, conventionally, since the foam packing is manufactured separately and manually assembled, there is a limit in reducing the cost of the packaging material container by adding costs such as production, movement, and assembly of the foam packing.

Moreover, in the structure of the conventional hermetic container, no integral packing material capable of simultaneously blocking the sealing portion between the upper and lower caps and the sealing portion between the lower cap and the container has not been proposed at all.

It is an object of the present invention, after primary injection molding of the lower cap, an annular first and a second packing portion connected via a packing connection of a vertical tunnel structure, the second upper side of the cylindrical body of the lower cap and the upper side of the upper side. By integrally injection molding the upper part of the neck part, the sealing part with the container and the sealing part with the upper cap can be blocked at the same time. It is to provide a double cap leakage preventing container that does not occur at all in the sealing area region.

In addition, by providing an integral packing part consisting of annular first and second packing parts connected through a packing connection part of a vertical tunnel structure, a conventional packing separation shape in which the separate packing is released by external force such as vibration or the like is provided. In addition to preventing, to provide a double cap leakage preventing container that can reduce the cost of the packaging material and significantly improve the productivity of the lower cap and the packing integrally produced.

A double cap leakage preventing container according to the present invention for achieving the above object, the container having a first neck portion which is open upward and the contents are accommodated; A lower cap comprising a first cylindrical body having an annular first insertion groove portion into which the first neck portion of the container is inserted, a shoolder, and a second neck portion projecting upward on the top of the shovel and opening upwardly; ; An upper cap having a second cylindrical body having an annular second insertion groove portion into which the second neck portion of the lower cap is inserted and fastened; An annular first packing part integrally double-injected with an upper inner surface of the annular first insertion groove part having a predetermined thickness at an upper end of the first neck part of the container; An annular second packing portion having a predetermined thickness on the upper end of the second neck portion of the lower cap and integrally double injection molding to be in close contact with an inner surface of the annular second insertion groove portion of the upper cap. And an integral packing portion consisting of a packing connection portion that vertically penetrates the shoulder of the lower cap and interconnects the first and second packing portions: in the integral packing portion, the annular first of the lower cap; The insertion groove may include a first outer inner surface protruding downward toward the outside, a first inner inner surface protruding downward toward the inside, and an upper side of the first outer inner surface and the first inner inner surface of the first outer inner surface. Upper side And a first horizontal inner surface as the upper inner surface of the first insertion groove portion which is formed horizontally therebetween and is injection molded integrally with the upper surface of the annular first packing portion, the first insertion of the annular shape An upper side portion opposite to the first horizontal inner surface of the groove portion becomes the shoolder, and two connecting holes are formed to face the first horizontal inner surface and the shovel vertically to face each other. The second neck portion vertically extending upwardly of the hole is also formed with two opposing connecting grooves vertically formed so that the two connecting rod-shaped packing connecting portions interconnecting the annular first and second packing portions are secondary injection. It is characterized by forming a space that can be molded.

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In addition, the annular second insertion groove portion of the upper cap has a second threaded portion having a second threaded portion formed to protrude downward and screwed with the first threaded portion of the second neck portion of the lower cap. The annular second packing formed horizontally between an outer inner surface, a second inner inner surface projecting downwardly inward, and an upper side of the second outer inner surface and an upper side of the second inner inner surface It is preferable that the upper surface of the part is made of a second horizontal inner surface which is brought into close contact with the upper surface.

In addition, the cross-section of the upper end of the second neck portion of the lower cap is formed in the projections of the letter "c", the annular second packing portion corresponding to this through the double injection method also " "It is preferable that it is injection molding as an undercut coupling structure by making into characters.

In addition, the integral packing part is preferably made of rubber or elastomer-based resin.

As described above, according to the double cap leakage preventing container according to the present invention, after the first injection molding of the lower cap, the annular first and second packing parts connected through the packing connection part of the vertical tunnel structure, the lower cap By the second injection molding integrally on the inner upper end of the cylindrical body and the upper end of the upper side of the upper body, it is possible to simultaneously block the sealing part with the container and the sealing part with the upper cap, at the same time when the container and the lower and upper cap No leakage occurs due to the pressurized seal, which is completely sealed, and by providing an integral packing part consisting of annular first and second packing parts connected through a packing connection part of a vertical tunnel structure, the conventional separation type The packing can be prevented from being separated by external force such as vibration, and at the same time, There is a material cost savings and effectiveness that can significantly improve your productivity.

1 is a schematic separation cross-sectional view of a double cap leakage preventing container according to the present invention.
Figure 2 is a schematic cross-sectional side view of the double cap leakproof container according to the present invention.
Figure 3 is a cross-sectional view after the primary molding of the lower cap of the double cap leakproof container according to the present invention.
4A and 4B are cross-sectional views and front views of the lower cap of the double cap leakproof container according to the present invention after secondary molding.

Hereinafter, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. .

1 is a schematic separation cross-sectional view of a double cap leakproof container according to the present invention, Figure 2 is a schematic side cross-sectional view of a double cap leakproof container according to the present invention, Figure 3 is a double cap leakproof prevention according to the present invention 4 is a cross-sectional view of the lower cap of the container after primary molding, and FIGS. 4A and 4B are cross-sectional views and a front view of the lower cap of the double cap leakage preventing container according to the present invention, which will be described together for convenience.

As shown, the double cap leakage preventing container 100 according to the present invention includes a container 10 having an upper opening and having a first neck portion 11 at an outer circumference thereof and containing contents thereof; The first cylindrical body 21 having the annular first insertion groove portion 22 into which the first neck portion 11 of the container 10 is inserted, the shoulder 23, and the second neck portion ( A lower cap 20 made of 24; An upper cap (30) having a second cylindrical body (31) having an annular second insertion groove portion (32) into which the second neck portion (24) of the lower cap (20) is inserted; The first neck portion 11 of the container 10 has a predetermined thickness and abuts to be in close contact, but is integrally doubled to the upper inner surface of the first insertion groove portion 22 of the annular shape (double) An annular second injection molded part 41 and an annular second injection molded part having a predetermined thickness on the upper end of the second neck part 24 of the lower cap 20 and integrally double injection molded. Integral packing consisting of a packing part 43 and a packing connection part 42 which vertically penetrates the shoulder 23 of the lower cap 20 and interconnects the first and second packing parts 41 and 43. The portion 40 is made large.

Here, the container 10 accommodates various liquid contents such as cosmetics or bathroom cleaning cosmetics and kitchen detergents. The material of the container may be made of PP, PE, ABS, AS, PVC, POM, etc., which are plastic general purpose resins, or may be made of steel, stainless steel, or the like.

The container 10 has an opening (not shown in the figure) with an upper opening, and an obstruction of the annular insertion groove 22 of the lower cap 20, which will be described later, on the protruding upper outer circumference. A neck portion 11 is formed in which an annular hooking jaw 11a is formed to engage a group 22d to undercut.

Here, in the illustrated example, the container 10 and the lower cap 20 are shown to be combined with the undercut, but the hooking jaw dash-en screw portion is formed in the neck portion 11 to form the lower cap 20 and the neck portion ( Of course, the method of screwing 11) is also possible.

On the other hand, the cap (cap) covering the container 10, consists of a lower cap 20 and the upper cap 30 that can be separated from each other.

First, the lower cap 20 has a shape in which a center thereof is opened, and is formed at a lower edge thereof so that the first neck portion 11 of the container 10 is inserted into the inner circumference thereof, and the annular shape A first cylindrical body 21 having an annular first insertion groove portion 22 interposed therebetween to form a space where leakage fluid does not occur, the first packing portion 41 of A second neck portion projecting upward on the top of the shoold 23 to engage with the inner circumference of the annular second insertion groove 32 of the second cylindrical body 31 of the upper cap 30. It consists of 24.

The annular first insertion groove portion 22 protrudes downward to the outside and protrudes downward toward the first outer inner surface 22a having the locking projection 22d on the lower side, and downward toward the inner side. The annular first packing part 41 is formed horizontally between a first inner inner surface 22c, an upper side of the first outer inner surface 22a, and an upper side of the first inner inner surface 22c. An upper surface and a portion thereof are integrally formed with a first horizontal inner surface 22b which is double injection molded.

Here, the upper side opposite to the first horizontal inner surface 22b of the annular first insertion groove portion 22 becomes the shoulder 23, and the first horizontal inner surface 22b and the shoulder ( Two connecting holes 22e are formed to vertically penetrate 23 and face each other so that the packing connection portions 42 interconnecting the annular first and second packing portions 41 and 43 are secondary (double) injection. A space that can be molded (see FIGS. 4A and 4B) is formed.

Of course, two connecting grooves 24b perpendicular to the second neck portion 24 extending vertically above the two connecting holes 22e are formed so that the packing connecting portion 42 has the two connecting holes. Together with 22e, a space (see FIGS. 4A and 4B) that can be secondary injection molded is formed.

In addition, as described above, the locking projection 22d of the first insertion groove 22 is undercut to be engaged with the locking projection 11a of the first neck portion 11 of the container 10.

On the other hand, a first screw portion 24a is formed on the outer circumference of the second neck portion 24 so that the annular second insertion groove portion 32 of the second cylindrical body 31 of the upper cap 30 is formed. The lower cap 20 and the upper cap 30 can be screwed into each other by screwing the second screw portion 32d formed on the inner circumference of the second outer inner surface 32a.

The upper cap 30 has a closed upper surface, and is formed at the lower edge thereof, and the second neck portion 24 of the lower cap 20 is screwed on the inner circumference thereof, and the annular A second cylindrical body 31 having an annular second insertion groove portion 32 is formed between the second packing portion 43 to form a space where leakage does not occur.

The annular second insertion groove 32 is projected downward to the outside and screwed with the first threaded portion 24a of the second neck portion 24 of the lower cap 20 at its inner circumference. Of the second outer inner surface 32a having the second threaded portion 32d formed therein, the second inner inner surface 32c projecting downward inwardly, and the second outer inner surface 32a. A second horizontal inner surface formed horizontally between an upper side and an upper side of the second inner inner surface 32c and abutting with an upper surface of the annular second packing portion 43 so as to be completely in contact with each other when 32b).

On the other hand, as shown in Figure 4a and 4b, in the lower cap 20 of the double cap leakage preventing container according to the present invention, as described above in the first injection molding, the first horizontal inner surface 22b ) And two connecting holes 22e vertically penetrating through the shoulder 23, and two perpendicular to the second neck portion 24 extending vertically upwardly through the two connecting holes 22e. The connecting grooves 24b are formed to form a space in which two rod-shaped packing connecting portions 42 opposed to each other during the secondary injection molding described below are integrally injection molded.

Of course, in the second molding of the lower cap 20 of the double cap leakage preventing container, the two opposing packing connections 42 and the upper portion of the annular first insertion groove 22 are formed. An annular first packing portion 41 integrally formed on the side surface and an annular agent integrally formed with a predetermined thickness on an upper end of the second neck portion 24 of the lower cap 20. The two packing parts 43 are double injection molded at the same time to complete the integrated packing part 40 according to the present invention.

That is, the lower cap 20 of the double cap leakproof container according to the present invention is annular first and second packing parts 41 and 43 and first and second packing parts 41 after primary molding. The integral packing part 40 consisting of two rod-shaped packing connecting parts 42 that connects the upper and lower parts 43 is integrally injection-molded by a double injection method.

In other words, while using the same structure of the conventional lower cap 20 while using the rubber (rubber) or elastomer (elastomer) -based resin after the primary molding of the lower cap 20, immediately through a known double injection method The integrated packing portion 40 integrated with the lower cap 20 is formed by the inner upper end (lower side of the horizontal inner surface 22b) and the second neck of the annular first insertion groove 22 of the lower cap 20. The first and second packing parts 41 and 43 are integrally formed through the packing connection part 42 of the tunnel structure perpendicular to the upper part of the part 24.

Here, in the state where the cross section of the upper end of the second neck portion 24 is formed with a roughly “c” shaped projection, the second packing portion 43 corresponding thereto through the injection method is also in cross section. By injection molding as the undercut coupling structure with the shape of approximately "c", the second packing portion 43 more firmly integrated with the upper end of the second neck portion 24 of the lower cap 20 is formed. You can do it.

As such, after the first injection molding of the lower cap 20, the first and second packing parts 41 and 43 connected through the packing connection part 42 of the vertical tunnel structure are annular ( By secondary injection molding integrally on the inner upper end of the first insertion groove part 22 and the upper end of the second neck part 24, the sealing part with the container 10 and the sealing part with the upper cap 30 can be blocked at the same time. As a result, no leakage occurs due to the compression when the container 10 and the lower and upper caps 20 and 30 are completely coupled.

Although the present invention has been described in detail with reference to preferred embodiments, it is not intended to limit the present invention but merely to illustrate the present invention, and various changes and modifications can be made by those skilled in the art without departing from the gist and scope of the present invention. Of course, this is also within the scope of the present invention.

100: double cap leakproof container according to the present invention
10: Courage 11: First Neck
11a: locking jaws 20, 30: lower and upper caps
21, 31: first and second cylindrical body
22, 32: (annular) first and second insertion grooves
22a, 32a: first and second outer inner surfaces
22b, 32b: first and second horizontal inner surfaces
22c, 32c: first and second inner medial side
22d: Obstruction 22e: (two opposing) connection holes
23: Show 24: The second neck part
24a: first threaded portion 24b: (two opposed) grooves
32d: 2nd thread part 40: integral packing part
41, 43: annular first and second packing parts
42: packing connection (two opposed rods)

Claims (5)

A container having an upper opening having a first neck portion and containing contents therein;
A lower cap comprising a first cylindrical body having an annular first insertion groove portion into which the first neck portion of the container is inserted, a shoolder, and a second neck portion projecting upward on the top of the shovel and opening upwardly; ;
An upper cap having a second cylindrical body having an annular second insertion groove portion into which the second neck portion of the lower cap is inserted and fastened;
An annular first packing part integrally double-injected with an upper inner surface of the annular first insertion groove part having a predetermined thickness at an upper end of the first neck part of the container; An annular second packing portion having a predetermined thickness on the upper end of the second neck portion of the lower cap and integrally double injection molding to be in close contact with an inner surface of the annular second insertion groove portion of the upper cap. And an integral packing part consisting of a packing connection part vertically penetrating the shoulder of the lower cap to interconnect the first and second packing parts;
In the one-piece packing, the annular first insertion groove portion of the lower cap, the first outer inner surface protruding downwards to the outside, the first inner inner surface protruding downwards to the inside, As the upper inner surface of the first insertion groove portion formed horizontally between the upper side of the first outer inner surface and the upper side of the first inner inner surface and integrally injection molded with the upper surface of the annular first packing portion. A first horizontal inner surface,
The upper side opposite to the first horizontal inner surface of the annular first insertion groove portion becomes the shoolder, and two connecting holes facing the first horizontal inner surface and the shovel vertically are opposed to each other. Two opposing connecting grooves formed in the second neck portion vertically extending upwardly of the two opposing connecting holes, respectively, so that the two opposing first and second packing portions are interconnected to each other. Characterized in that the rod-shaped packing connection forms a space for secondary injection molding
Double cap leakproof container. delete The method of claim 1,
A second outer side having a second threaded portion of the upper cap which has a second threaded portion formed to protrude downward outwardly and to screw with a first threaded portion of the second neck portion of the lower cap; An upper surface of the annular second packing part formed horizontally between an inner surface, a second inner inner surface projecting downwardly inward, and an upper side of the second outer inner surface and an upper side of the second inner inner surface A double cap leakage preventing container, which is made of a second horizontal inner surface which is brought into close contact with and is brought into close contact with each other. The method of claim 1,
The cross-section of the upper end of the second neck portion of the lower cap is formed with a projection of the letter "c", the second packing part of the annular corresponding to the corresponding through the double injection method "c" A double cap leakproof container, which is injection molded as an undercut coupling structure. The method according to claim 1 or 3 or 4,
The material of the one-piece packing part is a rubber (rubber) or elastomer (elastomer) -based resin for a double cap leakage preventing container, characterized in that.

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