KR20160069068A

KR20160069068A - A paper cup

Info

Publication number: KR20160069068A
Application number: KR1020140174221A
Authority: KR
Inventors: 전진권
Original assignee: 주식회사 에이스팩
Priority date: 2014-12-05
Filing date: 2014-12-05
Publication date: 2016-06-16

Abstract

The present invention relates to a double paper cup for forming a heat insulating space between the inside and outside paper, and more particularly to a double paper cup whose structure is improved so as to improve the heat insulation and heat insulating effect even in the upper half of the paper cup.

Description

A paper cup

Disposable paper cups, which are typically used as coffee or beverage containers, have a double structure with a thermal insulation space for insulation / insulation.

2, the double paper cup 1 is formed with a curling portion 2a at an upper edge thereof and an upper portion formed in a cylindrical shape having a larger diameter than a lower end portion thereof, And a base 4 joined to the lower ends of the outer sheets 3 and 2 to be wrapped while forming the heat insulating space 5 on the outer sheet 3.

The heat insulating space 5 formed between the above-described (2) and the outer sheet 3 is formed by forming a lower curling portion 3a at the lower end of the outer sheet 3.

Such a conventional double paper cup 1 has the effect of insulating / insulating by forming the heat insulating space 5 between the (2) and (3).

The conventional dual paper cup 1 is formed in a cylindrical shape whose diameter decreases from the upper end portion to the lower end portion and the heat insulating space 5 is formed by the lower curling portion 3a of the outer paper 3 The heat insulating space 5 is formed so as to become narrower from the lower end portion toward the upper end portion.

Therefore, when the user holds the paper cup 1, most of the user catches the upper half of the habit, so that the hot heat is transmitted to the user's hand, The effect is much less, and the warming function is lowered naturally.

An improved paper cup for this purpose is disclosed in Korean Utility Model Registration No. 20-0468369 and shown in Fig. This comprises a cup body 10 of a paper material and a heat insulating cup cover 30 to which the cup bottom 11 is bonded.

The upper end portion of the cup body 10 forms a cup inlet 12 and a cup edge 20 made of a plastic material is provided at an edge of the cup inlet 12. The cup edge 10 has a concave And the fixing portion 21 is provided to fix the position by engaging with the upper end of the heat insulating cup cover 30. [

The lower end of the heat insulating cup cover 30 is fixedly coupled to the corresponding outer surface of the cup body 10 so that the heat insulating cup cover 30 forms a heat insulating space 41 between at least the upper half inner surface and the cup body 10 have.

Such a paper cup has a heat insulating space 41 entirely between the entire inner surface of the heat insulating cup cover 30 and the cup body 10 to improve the heat insulating effect and the warming effect rather than the paper cup of FIG. .

In order to form the heat insulating space 41 as a whole between the cup body 10 and the heat insulating cup cover 30, the paper cup must be provided with the cup edge 20 made of plastic, Thereby increasing the product cost.

Korean Utility Model Registration No. 20-0468369

It is an object of the present invention to provide a double paper cup in which a heat-insulating space portion spaced between a side surface and an outer surface can be formed as a simple constitution.

Another object of the present invention is to provide a double paper cup in which the outer paper can be fixed to the outer paper as a simple constitution.

According to an aspect of the present invention, there is provided a double paper cup including a tubular side having a first curling portion formed at its upper end and a curling portion formed at an upper end thereof, a base joined to a lower end of the side paper,

A first support portion and a second support portion are formed on an upper end portion and a lower end portion of the outer sheet, respectively,

And a heat insulating space part formed by the first and second supporting parts spaced from the side edge from the upper end part to the lower end part,

And fixing means for fixing the first and second supporting portions to the side edge.

The fastening means is formed with a through hole in a lower portion of the first curled portion, and the first supporting portion is formed by being bent toward the side edge by making a "C" shaped sheath on the outer edge, A protruding piece to be engaged is extended,

The bent portion is formed at the upper end of the protruding piece, and after the protruding piece is coupled to the through hole, the bent portion is opened by self-elasticity to prevent the protruding portion from being separated.

In addition, the fixing means is provided with a sheath on the outer sheet 130 so that the upper end of the outer sheet 130 is folded toward the side of the outer sheet 130 to form the first supporting portion,

And an upper end of the first support portion is sandwiched between the first curling portion and the side edge.

In addition, in the double paper cup according to the present invention, the second support portion is formed by curling in which the lower end of the outer sheet is curled toward the side.

In addition, in the double paper cup of the present invention, the first supporting portion is formed by curling the upper end of the outer sheet to the side of the side.

First, the double paper cup of the embodiment of the present invention is different from the double paper cup of the present invention in that the upper and lower ends of the outer paper 130 are divided into first, second and third paper cups, unlike the case in which the conventional paper cup is required to install the cup edge 20 made of plastic material at the edge of the cup inlet 12. [ 2 supporting portion to form the heat insulating space portion 140, thereby reducing the cost and the assembly cost.

Secondly, a bent portion 131c is formed at the upper end of the protruded piece 131b of the outer sheet 130 so that the bent portion 131c is attached to the through hole 111a of the first curled portion 111, So that it is not necessary to bump the outer sheet 130 to the side surface 110 by a separate adhesive.

Third, since the upper end of the first support part 131 is fitted between the first curled part 111a and the side edge 110, no separate adhesive is required.

1 is a partial cross-sectional view showing a conventional double paper cup,
2 is a cross-sectional view showing another conventional double paper cup,
3 is a sectional view of the double paper cup of the first embodiment of the present invention,
Figure 4 is an illustration of the separation of Figure 3,
5 is a partial cross-sectional view of a double paper cup according to a second embodiment of the present invention,
6A is an exploded view of a recessed portion developed on the side of FIG. 5,
FIG. 6B is a cross-sectional view of the side of FIG. 5,
7 is a partial cross-sectional view showing a double paper cup according to a third embodiment of the present invention,
8A is an exploded view of a recessed portion developed on the side of FIG. 8,
8B is a cross-sectional view of the side of Fig.

The double paper cup according to the present invention has an improved structure to improve the heat insulation and heat insulation effect even in the upper half of the paper cup.

3 and 4, which illustrate a double paper cup 100 according to the first embodiment of the present invention, the paper cup 100 includes a tubular side surface 110 formed with a first curled portion 111 curved outward at an upper end thereof, A base 120 joined to a lower end of the side cover 110 and an outer cover 130 surrounding the side cover 110.

The upper and lower ends of the outer sheet 130 are respectively formed with a first support portion 131 and a second support portion 132 that are bent toward the side edge 110 and supported on the surface of the side edge 110.

The first supporting portion 131 is formed by folding the upper end of the outer sheet 130 to the side of the side 110 in a substantially C shape and the lower portion of the outer sheet 130 is connected to the side 110) side.

The outer sheet 130 is separated from the side sheet 110 by the first and second supporting portions 131 and 132 from the upper end to the lower end to be separated from the outer sheet 130 and the side sheets The heat insulating space 140 is formed.

The first and second support portions 131 and 132 may be curled. The first support portion 131 may be curled and the second support portion 132 may be curved in a " (110).

The first and second supporting portions 131 and 132 are fixed to the side surface 110 by fixing means.

In the first embodiment, the first support portion 131 is fixed to the side edge 110 as an adhesive agent by the fixing means.

In the double paper cup of the first embodiment as described above, the heat insulating space 140 is formed at the upper end of the outer paper 130 by the first supporting part 131, so that even if the user grasps the upper end of the paper cup, And the heat insulating space 140 is formed to be spaced apart from the side edge 110 entirely from the upper end to the lower end of the outer sheet 130,

That is, the double paper cup of the first embodiment is different from the conventional paper cup in that the cup edge 20 made of a plastic material is required to be provided at the edge of the cup inlet 12, The space portion 140 is formed, so that the cost and the assembling cost can be reduced.

5 and 6 show a second embodiment of the present invention, which shows a modified embodiment of the fixing means.

6A and 6B, the first support part 131 is formed in the outer paper 130 (see FIG. 6A), and the second paper support part And a projecting piece 131b coupled to the through hole 111a is formed at an upper end of the outer sheet 130. The projecting piece 131b is connected to the through hole 111a, .

At this time, a bent portion 131c is formed at the upper end of the protruded piece 131b of the outer sheet 130. After being coupled to the through hole 111a, the folded portion 131c is opened by self-elasticity, .

Therefore, it is not necessary to attach the outer sheet 130 to the side surface 110 with a separate adhesive.

The second support portion 132 may be attached to the side edge 110 with an adhesive.

The double paper cup of the second embodiment is formed by the engagement of the projecting pieces 131b

7 and 8 show a third embodiment of the present invention, which shows another modified embodiment of the fixing means.

As shown in FIGS. 8A and 8B, the double paper cup of the third embodiment draws a "C" -shaped sheath on the outer sheet 130, so that the upper end of the outer sheet 130 is folded toward the side of the side 110, And the upper end of the first support part 131 is sandwiched between the first curled part 111a and the side edge 110. [

In this case, since the upper end of the first support part 131 is fitted between the first curled part 111a and the side edge 110, no separate adhesive is required.

At this time, an adhesive may be applied to the surface of the first support part 131 and attached to the side surface 110.

100 ... double paper cup 110 ... side
120 ... underside 130 ... outer
131 ... first support portion 132 ... second support portion

Claims

1. A double paper cup comprising a tubular side having a first curled portion curved outward at an upper end thereof, a base joined to a lower end of the side edge, and a circumference surrounding the side edge,
A first support portion 131 and a second support portion 132 are formed on the upper and lower ends of the outer sheet 130 so as to be supported by the surface of the side sheet 110,
A heat insulating space part 140 is formed by the first and second supporting parts 131 and 132 so that the outer sheet 130 is spaced apart from the side surface 110 from the upper end part to the lower end part,
And fixing means for fixing the first and second supporting portions (131, 132) to the side edge (110).

[2] The apparatus according to claim 1, wherein the fixing means includes a through hole (111a) formed in a lower surface of the first curled portion (111)
The first support part 131 is formed by being bent toward the side 110 by forming a sheath on the outer sheet 130,
A protrusion 131b coupled to the through hole 111a is formed at an upper end of the outer sheet 130,
A bent portion 131c is formed at the upper end of the protruded piece 131b and is engaged with the through hole 111a to be opened by self-elasticity of the bent portion 131c, Double paper cups.

The fixing device according to claim 1, wherein the fixing means includes a first support portion (131) by raising the upper end of the outer sheet (130) toward the side edge (110)
Wherein an upper end of the first support part (131) is fitted between the first curled part (111a) and the side edge (110).

The double paper cup according to any one of claims 1 to 3, wherein the second support part (132) is formed by curling the lower end of the outer paper (130) to the side of the side paper (110).

The double paper cup according to claim 4, wherein the first support part (131) is formed by curling the upper end of the outer paper (130) to the side of the side paper (110).