KR200381503Y1 - Paper cup structure having twofold body - Google Patents

Abstract

The present invention relates to a paper cup structure for insulating heat insulation having a double cylinder structure, to simplify the manufacturing process, to improve the thermal insulation efficiency of the paper cup by allowing the outer cylinder and the inner cylinder to be manufactured in the same facility that mutual coupling is made It is intended to recycle the inner and outer cylinders together after use.

The present invention for realizing this, the inner cylinder 10 and the outer cylinder 20, but the upper end of the inner cylinder 10 is curled to the outer curling portion 11 is formed is formed In the double-cylindrical paper cup structure, the outer cylinder (20) has a curling portion (22) formed at the lower end with curling inward; The inner cylinder 10, the bottom surface 13 is configured to form a lower portion of the engraving portion 12 for forming a heat insulating space 16 between the bottom surface 23 of the outer cylinder 20, The lower side side curling portion 12 forms a spaced interval w with the inner wall surface 24 of the outer cylinder 20, and is press-fitted with the inner wall surface 24 of the outer cylinder 14 on the outer wall surface 14. Protruding frame 15 for is characterized in that it is formed.

Description

Paper cup structure for thermal insulation with double cylinder structure {PAPER CUP STRUCTURE HAVING TWOFOLD BODY}

The present invention relates to a paper cup for thermal insulation, and more particularly to a paper cup structure that forms a coupling structure of the outer cylinder and the inner cylinder to form an inner heat insulating structure.

In general, paper cups are a necessity of modern life, and various kinds have been developed and used along with numerous kinds of disposable products according to the development of the instant food culture, and they have been spotlighted as substitutes for synthetic resin products made of plastic or styropol. As such, Styropol's cup ramen containers are being replaced by paper cups at the government level.

These paper cups range in size from small shochu cups to large containers for coffee, beverages, ramen cups, snacks, and chickens. It is mainly used, but cup ramen containers, etc. are also used as relatively large containers.

In particular, large-capacity paper cups are used for the packaging of instant foods (fish cakes, rice cakes, roasted persimmons, etc.) sold at highway rest areas, in addition to cup noodles. Rescue is required.

As a method for realizing this, a number of patents and utility models have been applied for and registered at home and abroad, and representative examples thereof will be described.

In other words, there are two types of paper cups for keeping warm and insulating, firstly, forming a double cylinder of an inner cylinder and an outer cylinder, and inserting various types of embossed insulating paper between them to insulate them (Utility Model Registration Application No. 96 -4519, Utility Model Registration Application No. 96-22978), and the inner cylinder and the outer cylinder itself being uneven to achieve thermal insulation (Japanese Utility Model Publication No. 50-88309, Japanese Utility Model Publication 55-18346) and the like are known.

However, the conventional paper cup structure having a double cylinder for having such a heat insulating wall has the following problems in use.

First, since the outer cylinder and the inner cylinder to be bonded to each other has a different structure, a process and equipment for molding each must be provided separately, thereby increasing the production cost.

Second, the outer cylinder has difficulty in recycling due to the use of manila paper to facilitate printing of the packaging surface. In other words, the inner cylinder is made of high-quality paper, a fluorescence-free natural pulp, but manila is a low-grade paper made by mixing manila hemp with wood pulp, and there is a problem of separating the inner and outer cylinders for recycling.

Third, the separation is not easy. That is, in the past, the adhesive was applied to the contact surfaces between the inner and outer cylinders by using an adhesive. However, when a plurality of paper cups are stacked and provided, adhesive force with other paper cups is generated due to the influence of some exposed adhesive. Accordingly, when the ready-to-eat foods are sold, if the paper cups are taken out one by one and the paper cups are urgently removed in the process of storing the food, the number of the food cups is dropped at once, thereby reducing the convenience of use.

The present invention has been proposed to improve the above problems in the prior art, to reduce the production cost by simplifying the manufacturing process and work maneuver of the heat-insulating paper cup constituting a double cup cylinder structure, it is discarded after use The purpose of this paper is to maximize the recycling efficiency of paper cups.

The object is to form a coupling structure between the outer cylinder and the inner cylinder, wherein the outer cylinder is curled inward in the double-cylinder paper cup structure is formed on the upper end of the inner cylinder is curled outwardly formed. The made curling portion is configured at the lower end; The inner cylinder, the bottom surface is configured to form an incaling portion for forming a thermal insulation space between the bottom surface and the outer surface of the outer cylinder, the lower portion of the curling portion to form a spaced interval with the inner wall of the outer cylinder, on the outer wall surface In the inner wall surface of the outer cylinder can be achieved through a thermal insulation paper cup structure having a double-cylindrical structure characterized in that the protrusion frame is formed for mutual indentation coupling.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to the structure of the double-cylindrical paper cup according to the present embodiment, the inner cylinder 10 forming the inner wall surface of the container and the outer cylinder 20 forming the outer wall surface of the container form a thermal insulation space therebetween. In this combined double structure, each inner / outer cylinder is made of high-quality paper with no fluorescence of natural pulp.

Among them, the inner cylinder 10 is curled outwardly along the upper edge to form an out curling part 11 formed of curling, and at the bottom side, the curling part 12 is curled inward with the bottom surface 13. It is formed, the upper portion of the outer wall 14 is formed with a protruding frame 15 protruding to a predetermined height.

Moreover, the outer cylinder 20 is formed in the lower end side with the curling part 22 rolled inward with the bottom surface 23 similarly to the said inner cylinder 10. As shown in FIG.

In the figure, reference numeral 24 denotes an inner wall surface of the outer cylinder.

In order to achieve the structure as described above, the working effect of the thermal insulation thermal insulation paper cups manufactured by combining the inner cylinder 10 and the outer cylinder 20, each of which is formed, will be described.

When the inner cup 10 is inserted into the interior of the outer cylinder 20, as shown in the completed double-cylindrical paper cup is completed, the protrusion formed on the outer wall surface 14 of the inner cylinder 10 at this time Coupling force with the outer cylinder 20 can be maintained by the pressing force of the frame (15).

Therefore, it can be seen that it is possible to reduce the number of work by eliminating the need to use a separate adhesive to prevent adverse effects due to the use of the adhesive as well as to eliminate the work process for applying the adhesive.

In addition, in the cross-sectional structure of the paper cups thus bonded, the lower end diameter D of the inner cylinder 10 has a smaller size than the lower end diameter d of the outer cylinder 20, so that a predetermined space is maintained at the side surface. At the same time, the insulation space 16 is formed between the side walls as well as the bottom surfaces 13 and 23 of the inner and outer cylinders by the height of the incaling unit 12, thereby keeping warm the contents stored in the paper cup. Insulation efficiency can be increased.

On the other hand, since the outer cylinder 20 constituting the paper cup of the present invention is made of a non-fluorescent natural pulp material of the same high-quality paper material as the inner cylinder 10, it can be recycled together without a separate separation operation.

That is, in the prior art, since the outer cylinder was made of manila paper, which is a low-grade paper, the inner cylinder should be separated from the inner cylinder for recycling. To improve.

In particular, since the inner cylinder 10 and the outer cylinder 20 have the same structure of the lower engraving portion 12, 22, there is no need for a separate molding apparatus for each molding.

Therefore, it can be seen that it is possible to minimize the installation cost for the paper cup production by using the existing molding apparatus as it can be made for each cylinder.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the double-cylindrical paper cup structure of the present invention may be variously modified and implemented by those skilled in the art.

For example, in the above embodiment, the protruding frame provided on the outer wall surface of the inner cylinder is provided in one place in the form of an annular shape, but the shape of the protruding frame may be formed so that a plurality of the protruding frames protrude in a hemispherical shape along the perimeter. May be.

Therefore, such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments shall fall within the appended utility model registration claims of the present invention.

As described above, the double-cylindrical paper cup of the present invention has the same encapsulation structure as the lower end of the outer cylinder and the inner cylinder in which the mutual coupling is made, and thus can be manufactured in the same facility, thereby simplifying the manufacturing process. This can lower the production cost.

In addition, the thermal insulation layer is formed on the bottom side as well as the side wall to improve the thermal insulation efficiency, and it is possible to recycle the inner cylinder and the outer cylinder together after use, which may show an advantage in resource recycling.

1 is a cross-sectional structural view of the present invention paper cup.

2 is an enlarged view of a portion A of FIG. 1;

3 is an external perspective view of the present invention paper cup.

Figure 4 is a cross-sectional view of the laminated storage state of the subject innovation paper cup.

<Explanation of symbols for the main parts of the drawings>

10: inner cylinder 11: out curling unit

12: engraving part 13: bottom surface

14: outer wall surface 15: protrusion frame

16: insulation space 20: outer cylinder

22: engraving part 23: the bottom surface

24: inner wall

Claims (3)

In the double-cylindrical paper cup structure forming the coupling structure of the inner cylinder 10 and the outer cylinder 20, the outer curling portion 11 is formed on the upper end of the inner cylinder 10 to the outside curling, The outer cylinder 20, the curling portion 22 is curled inward is configured to the lower end portion; The inner cylinder 10, the bottom surface 13 is configured to form a lower portion of the engraving portion 12 for forming a heat insulating space 16 between the bottom surface 23 of the outer cylinder 20, The lower side side curling portion 12 forms a spaced interval w with the inner wall surface 24 of the outer cylinder 20, and is press-fitted with the inner wall surface 24 of the outer cylinder 14 on the outer wall surface 14. Thermal insulation paper cup structure having a double-cylindrical structure, characterized in that the protruding frame 15 is formed for. The method according to claim 1, The lower end diameter (D) of the inner cylinder (10) is a thermal insulation paper cup structure having a double-cylinder structure, characterized in that configured to form a size smaller than the lower end diameter (d) of the outer cylinder (20). The method according to claim 1 or 2, The outer cylinder and the inner cylinder are heat insulating paper cup structure having a double-cylindrical structure, characterized in that each consisting of a non-fluorescent natural pulp material.