KR200481312Y1 - Plastic dual container - Google Patents

Plastic dual container Download PDF

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Publication number
KR200481312Y1
KR200481312Y1 KR2020150004729U KR20150004729U KR200481312Y1 KR 200481312 Y1 KR200481312 Y1 KR 200481312Y1 KR 2020150004729 U KR2020150004729 U KR 2020150004729U KR 20150004729 U KR20150004729 U KR 20150004729U KR 200481312 Y1 KR200481312 Y1 KR 200481312Y1
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KR
South Korea
Prior art keywords
outer layer
air inlet
double container
plastic double
container
Prior art date
Application number
KR2020150004729U
Other languages
Korean (ko)
Inventor
고영사
Original Assignee
마루니 코리아 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 마루니 코리아 주식회사 filed Critical 마루니 코리아 주식회사
Priority to KR2020150004729U priority Critical patent/KR200481312Y1/en
Application granted granted Critical
Publication of KR200481312Y1 publication Critical patent/KR200481312Y1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes

Abstract

A plastic double container is disclosed. A plastic double container according to one embodiment of the present invention is a plastic double container including a container body made up of an inner layer and an outer layer, and an air inlet / outlet line for allowing air to flow in and out of the outer layer is formed at the bottom of the outer layer , And a bottom portion of the outer layer is provided with a protrusion which covers at least a part of the air inlet / outlet line and provides a nonlinear air movement path.

Description

[0001] PLASTIC DUAL CONTAINER [0002]

The present invention relates to a plastic double container, and more particularly to a plastic double container comprising an inner layer containing an object and an outer layer surrounding the inner layer.

BACKGROUND ART [0002] Plastic containers are widely used for accommodating various objects such as beverages, food ingredients, medicines, cosmetics, and the like.

An ordinary plastic container is made of a single layer, but a double container of the type including an inner layer and an outer layer is sometimes used for the purpose of suppressing the contact of the oxygen with the receptacle as much as possible or improving the convenience of the operation of discharging the outside of the receptacle .

1 to 4, a plastic double container 10 according to a prior art example includes a container body 20 and a lid 11 mounted on the container body 20, And includes an inner layer 30 and an outer layer 40 surrounding it.

As shown in FIGS. 1 and 2, an air inlet / outlet line L is formed in the bottom portion 50 of the outer layer 40. The inner layer 30 does not allow air in and out, while the outer layer 40 allows air to flow in and out through the air entry and exit lines L. 2, the air inlet and outlet line L is substantially formed over the entire width of the bottom portion 50, so that the bottom portion 50 of the outer layer 40 is connected to the air inlet line L And is divided into a left side region 51 and a right side region 52 by a boundary.

For example, the air inlet line L can be formed simultaneously in the process of molding the double container 10 by a blow molding method. An example of this will be briefly described with reference to Fig.

First, an intermediate product (not shown) formed in the form of a tube including the inner layer 30 and the outer layer 40 is injected between the left and right molds M1 and M2 by an extrusion process.

Then, as shown in Fig. 3 (a), the left and right molds M1 and M2 are bonded to each other. At this time, a portion 31 'of the inner layer 30 is inserted into the outer layer 40 in the vicinity of the bottom portion 40 where the left and right molds M1 and M2 are bonded to each other.

3 (a), the inner layer 30 and the outer layer 40 are deformed into the shape of the container body designed in the left and right molds M1, M2, as air blowing is provided in the tube-shaped intermediate .

3 (b), unnecessary by-product parts 32 and 42 attached to the bottom part 50 are removed from the bottom part 50 after the left and right molds M1 and M2 are separated from each other .

Finally, as shown in FIG. 3 (c), the inner layer 30 and the outer layer 40 are separated from each other by air blowing through the bottom portion 50.

3 (c), a portion 31 'of the inner layer 30, which has been inserted into the outer layer 40, remains at the bottom of the inner layer 30 as a projection 31 extending over its width, An air discharge line L corresponding to the projection 31 is formed in the bottom portion 50 of the outer layer 40 over the width of the bottom portion 50. [

As shown in FIG. 4 (a), as the amount of the inner contents decreases, the inner layer 30 in the closed state gradually decreases in volume, while the air inlet line L is provided in the bottom portion 50 The outer layer 40 is restored to its initial shape.

The user deforms the container body 10 while applying a compressive force P to the outer layer 40 in order to discharge the inside of the container to the outside. As shown in FIG. 4 (b) The compressed air between the inner layer 30 and the outer layer 40 mostly escapes through the air inlet / outlet line L on the bottom portion 50 even when the compression force P is applied, P can not be smoothly transmitted to the inner layer 30.

In this case, the outer layer 40 is squeezed so that the pressing force applied to the outer layer 40 is transmitted to the inner layer 30 through direct contact between the inner and outer layers 30 and 40 in order to discharge the inner receptacle to the outside. In the process, the user feels considerable inconvenience.

The present invention is intended to provide a plastic double container in which air inlet and outlet lines are formed on the bottom of the outer layer and does not inconvenience the user due to the discharge of the inner container.

In order to achieve the above object, the present invention provides a plastic double container including a container body made up of an inner layer and an outer layer, wherein an air inlet / outlet line for allowing air to flow into and out of the outer layer is formed at the bottom of the outer layer, And a bottom portion of the outer layer is provided with a protrusion which covers at least a part of the air entry and exit line and provides a non-linear (non-linear) air movement path.

It is preferable that the outer end and the inner end of the protruding portion have different air inlet and outlet directions.

The protrusion may include a first extension extending from a bottom of the outer layer along a first direction and a second extension extending from the first extension along a second direction different from the first direction .

The first direction may be a vertical direction and the second direction may be a horizontal direction.

The protrusion may be formed in a curved shape as a whole.

The protrusion may be provided at one end of the air inlet / outlet line.

Two bottom protrusions may be provided, and one bottom protrusion may be provided on both ends of the air inlet / outlet line.

And a lid coupled to an upper end of the container body and having a self-closing function.

In order to achieve the above object, the present invention also provides a plastic double container comprising a container body made up of an inner layer and an outer layer, wherein the bottom of the outer layer has at least one protrusion protruding outward over a predetermined width, And an air inlet line passing through the bottom portion, wherein a portion of the air inlet line formed in the projection has a nonlinear air movement path.

The outer and inner ends of the protrusions may have different air inlet and outlet directions.

The protrusion may include a first extension extending from a bottom of the outer layer along a first direction and a second extension extending from the first extension along a second direction different from the first direction .

According to the present invention, since the protruding portion including at least a part of the air inlet / outlet line is provided in the bottom of the outer layer, the discharging operation of the contents due to the pressing of the outer layer can be smoothly performed even if the remaining amount of the inner receptacle is reduced. Therefore, the user inconvenience caused when the internal water is discharged in the conventional dual container can be solved.

Also, according to the present invention, since the projections provided on the bottom of the outer layer can be formed simultaneously in the process of forming the container body, the container manufacturing process is simple and the manufacturing cost is not substantially increased.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side perspective view of a plastic double container according to the prior art.
2 is a bottom view of the container shown in Fig.
3 is a cross-sectional view for explaining an example of a manufacturing process of the container shown in FIG.
Fig. 4 is a view for explaining the operation of the container shown in Fig. 1. Fig.
5 is a side perspective view of a plastic double container according to one embodiment of the present invention;
6 is a bottom view of the container shown in Fig.
7 is a cross-sectional view for explaining an example of a manufacturing process of the container shown in FIG.
8 is a view for explaining the operation of the container shown in Fig.
9 is a cross-sectional view showing an alternative embodiment of a protrusion provided in the plastic double container according to the present invention.

Hereinafter, a plastic double container according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a side perspective view of a plastic double container according to an embodiment of the present invention, FIG. 6 is a bottom view of the container shown in FIG. 5, and FIG. Fig. 8 is a view for explaining the operation of the container shown in Fig. 5; Fig.

The plastic double container 100 according to one embodiment of the present invention shown in Figs. 5 to 8 can be used for accommodating various objects such as beverage, food ingredients, medicines, cosmetics and the like, and can be used for various objects such as soy sauce, oil, mayonnaise, ketchup And the like, for example.

The plastic double container 100 according to the present embodiment includes a lid 110 and a container body 120.

The lid 110 is mounted on the upper end of the container body 120 and serves to open and close the upper opening of the container body 120. In this embodiment, the lid 110 is provided with a self-closing function. That is, the lid 110 is opened only when the user applies a compressive force to the container body 120, and is automatically closed when the compressive force is released. As various lid structures for self-closing are known, the lid 110 of this embodiment may be one of those known structures.

The container body 120 includes an inner layer 130 containing the contents and an outer layer 140 surrounding the inner layer.

The inner layer 130 of the container body 120 may be made of a material that exhibits excellent oxygen barrier properties, for example. For example, the inner layer 130 may be made of EVOH (ethylene vinyl alcohol). When the inner layer 130 is made of a material exhibiting excellent oxygen barrier properties, the object accommodated therein can be safely stored undisturbed for a long period of time without deterioration (especially in the case of food).

The outer layer 140 is disposed to surround the inner layer 130 and forms an outer appearance of the container body 120. For example, the outer layer 140 may be made of conventional plastic materials such as polyethylene or polypropylene.

As shown in FIGS. 5 and 6, the bottom portion 150 of the outer layer 140 is provided with an air inlet / outlet line L. The inner layer 130 does not allow the entry and exit of air, while the outer layer 140 can allow entry and exit of air through these air entry and exit lines L.

This air inlet / outlet line L is substantially formed over the entire width of the bottom portion 150. Accordingly, the bottom portion 150 can be divided into a left side region 151 and a right side region 152 with the boundary of the air inlet /

A pair of protruding portions 141 are formed in the bottom portion 150 of the outer layer 140 to cover both end portions of the air inlet / 6, the central portion of the air inlet / outlet line L may be formed in the same shape as the air inlet / outlet line L according to the conventional art described above with reference to FIGS.

Meanwhile, the protrusion 141 can be formed simultaneously in the process of molding the dual container 100 by blow molding. An example of this will be described with reference to FIG.

First, a tube-shaped intermediate (not shown) including an inner layer 130 and an outer layer 140 is formed by an extrusion process, and is inserted between the left and right molds M1 and M2.

Next, as shown in Fig. 7 (a), the left and right molds M1 and M2 are bonded to each other. At this time, in the region below the bottom portion 150, a portion 131 'of the inner layer 130 is inserted into the outer layer 140. On the other hand, a bottom portion of the left and right molds M1, Shaped groove H is formed.

7 (a), an air blow is provided in a tube-shaped intermediate (not shown) so that the inner layer 130 and the outer layer 140 are formed in the left and right molds M1 and M2 And deformed into the shape of the container body.

Next, as shown in FIG. 7 (b), the left and right molds M1 and M2 are separated from each other and then unnecessary byproducts 132 and 142 attached to the bottom of the bottom portion 150 are removed.

Finally, as shown in FIG. 7 (c), the inner layer 130 and the outer layer 140 are separated from each other by air blowing through the bottom portion 150.

6, with respect to the entire length d 0 of the air inlet / outlet line L, the bottom portion 150 of the center portion has a length d 1 , A protrusion 141 is formed for some lengths (d 2 , d 3 ) of both edges, while a shape that is simply penetrated by the line L is derived. This is in contrast with the total length of the air entering the line (L) (see FIG. 2) prior art (d 0), the bottom portion 50 in the above-described perforated merely for.

As shown in FIG. 8 (a), when the compressive force P is exerted on the outer layer 140 by the user even when the amount of the contents is significantly reduced compared to the initial stage of use, the air layer between the outer layer 140 and the inner layer 130 The compressive force P can be smoothly transferred to the inner layer 130 through the inner wall of the container body 120,

The reason why such contents can be smoothly discharged can be easily understood from Fig. 8 (b). When the user applies the compressive force P to the outer layer 140, air can be discharged without any resistance through the portion of the air inlet / outlet line L disposed at the center of the bottom portion 150, while the bottom portion 150 A considerable resistance is exerted on the exhaust air due to the shape characteristic of the protrusion 141 through the air inlet / outlet line L of the protruding portion 141 formed on both ends of the protruding portion 141, .

Accordingly, when the outer layer 140 is compressed, the amount of air discharged to the outside can be greatly reduced as compared with the conventional example described above. As a result, And can be smoothly transferred to the inner layer 130 through the inner air layer.

Even if the amount of the contents in the container 100 is greatly reduced, the contents can be smoothly discharged through the compression of the outer layer 140, so that the inconvenience of using the conventional container 10 can be solved .

On the other hand, when the user releases the compressive force P applied to the outer layer 140 for discharging the contents, air flows into the outer layer 140 through the air inlet / outlet line L of the bottom surface 150, It can be restored to its initial shape. At this time, the inner layer 130 is kept in a compressed state since it is in an airtight state.

In this embodiment, a pair of protruding portions 141 enclosing both ends of the air inlet / outlet line L are provided. In an alternative embodiment, only one protrusion 141 may be provided on one side of the both ends of the air inlet / outlet line L. In this case, the length of the protrusion 141 may be designed to be relatively long have. In yet another alternative embodiment, one protrusion 141 may be provided that includes the entire air entry and exit line (L).

5 and 7, the protruding portion 141 includes a first extending portion 141a extending from the bottom portion 150 in a first direction (a vertical direction as viewed in the drawing) And a second extending portion 141b extending from the first extending portion 141a along a second direction (a horizontal direction in the drawing). For example, the first direction and the second direction may be orthogonal to each other.

However, the shape of the protrusion 141 described above is merely exemplary and various other shapes can be applied. However, the shape of the protrusion 141 should be such that it provides a non-linear air movement path. Here, 'nonlinear' means a shape other than a straight line, and 'nonlinear air movement path' means an air movement path in which the direction of air movement is variable along the path. 8 (b), at the center of the bottom portion 150, the projecting portion 141 is formed at both edges of the bottom portion 150, unlike the case of providing a linear air movement path along the A direction. It is required to provide a non-linear air movement path that is not straight.

8 (b), the protruding portion 141 has an air inlet / outlet direction (B direction in the drawing) at its outer end (free end) and an air inlet / outlet direction ) Are designed to be different from each other. At this time, as shown in Fig. 8 (b), the A direction may be a vertical direction and the B direction may be a direction inclined at a predetermined angle with respect to the vertical direction.

An alternative shape of the protrusion 141 is shown in Fig. As shown in the figure, the protrusion 141 may have a curved shape as a whole. In this case as well, the air inlet / outlet line L contained in the projecting portion 141 has a non-linear air movement path.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that

100: plastic double container
120: container body
130: inner layer
140: outer layer
141:
141a:
141b:
150:
L: Air entry line

Claims (11)

A plastic double container comprising a container body composed of an inner layer and an outer layer,
An air inlet / outlet line for allowing air to flow in and out of the outer layer is formed at the bottom of the outer layer,
Wherein a bottom portion of the outer layer is provided with protrusions which contain at least a part of the air inlet and outlet lines and provide a non-
Plastic double container.
The method according to claim 1,
Wherein an outer end and an inner end of the protrusion have different air inlet /
Plastic double container.
The method according to claim 1,
Wherein the projection includes a first extension extending from a bottom of the outer layer along a first direction and a second extension extending from the first extension along a second direction different from the first direction,
Plastic double container.
The method of claim 3,
Wherein the first direction is a vertical direction and the second direction is a horizontal direction,
Plastic double container.
The method according to claim 1,
Wherein the projecting portion is formed in a curved shape as a whole,
Plastic double container.
The method according to claim 1,
Wherein the one or more protrusions are provided at one end of the air inlet /
Plastic double container.
The method according to claim 1,
The two bottom projection portions are provided and one at each end of the air inlet /
Plastic double container.
The method according to claim 1,
Further comprising a lid coupled to an upper end of the container body and having a self-closing function,
Plastic double container.
A plastic double container comprising a container body composed of an inner layer and an outer layer,
The bottom of the outer layer
At least one protrusion protruding outward over a predetermined width,
And an air inlet line passing through the protruding portion and the bottom portion,
Wherein a part of the air inlet / outlet line formed in the projection has a nonlinear air movement path,
Plastic double container.
10. The method of claim 9,
Wherein an outer end and an inner end of the protrusion have different air inlet /
Plastic double container.
10. The method of claim 9,
Wherein the projection includes a first extension extending from a bottom of the outer layer along a first direction and a second extension extending from the first extension along a second direction different from the first direction,
Plastic double container.
KR2020150004729U 2015-07-14 2015-07-14 Plastic dual container KR200481312Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020150004729U KR200481312Y1 (en) 2015-07-14 2015-07-14 Plastic dual container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020150004729U KR200481312Y1 (en) 2015-07-14 2015-07-14 Plastic dual container

Publications (1)

Publication Number Publication Date
KR200481312Y1 true KR200481312Y1 (en) 2016-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020150004729U KR200481312Y1 (en) 2015-07-14 2015-07-14 Plastic dual container

Country Status (1)

Country Link
KR (1) KR200481312Y1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101493534B1 (en) * 2007-06-29 2015-02-13 가부시키가이샤 요시노 고교쇼 Double container of synthetic resin by direct blow molding method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101493534B1 (en) * 2007-06-29 2015-02-13 가부시키가이샤 요시노 고교쇼 Double container of synthetic resin by direct blow molding method

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