JP2000103479A - Heat insulated container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container superior in heat insulating property which hardly conducts the heat of its contents regardless where on its body part it is held with hands. SOLUTION: This heat insulated container comprises a paper cup main body 2 having an outward curl part 6 at the top open edge and a paper outside tube 3 which is open both at the top and at the bottom having an inward curl part 8 at the bottom open edge. Near the body top part of the outside tube 3, a horizontal ruled line 9 recessed inward is provided in its peripheral direction. The paper cup main body 2 is covered with the outside tube 3 for adhering the inside face of the horizontal ruled line 9 of the outside tube 3 to the side wall outer peripheral face near the body top part of the paper cup main body 2 to form them integrally and to form a gap 10 between the paper cup main body 2 and the outside tube 3. The horizontal ruled line 9 may be a discontinuous line. Since the heat insulating gap 10 is formed at certain intervals from the bottom to the horizontal ruled line 9 of the outside tube 3, the heat of its contents is hardly conducted regardless where on its body part it is held with hands.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cup-shaped container for storing instant foods such as instant noodles, and more particularly to a container having excellent heat insulating properties which can be poured into hot water and eaten as it is.

[0002]

2. Description of the Related Art In general, plastic containers such as expanded polystyrene have been widely used as such cup-shaped heat-insulating containers. However, since these containers pose a pollution problem when they are discarded, they are not suitable for this purpose. As an alternative, there has been proposed a heat insulating container made of paper in which a body portion is doubled to form a heat insulating space as seen in Japanese Utility Model Application Laid-Open No. 4-45212.

[0003]

The heat-insulating container described in the prior art disclosed in Japanese Utility Model Laid-Open No. 4-45212 has a simple structure in which a normal paper cup is combined with a bottomless outer cylinder having a different taper. Thus, there is an advantage that a cup having an insulating effect can be obtained. And since the space | gap for heat insulation goes down, it becomes large, and shows a favorable heat insulation effect by normal holding. However, there is a problem that if the state of holding the upper portion for a long time lasts for a long time, there is no or a small space for exhibiting the heat insulating effect, and the space gradually becomes hot.

[0004] The present invention has been made to solve the above problems, and has as its object the following.
It is an object of the present invention to provide an excellent heat-insulating container in which the heat of the content is hardly transmitted even when the user holds the body at any place.

[0005]

In order to achieve the above object, a heat insulating container according to the present invention comprises a paper cup body having an outward curl at an upper opening edge, a lower opening edge which is open at both upper and lower sides. The outer cylinder has an inwardly curled horizontal ruled line in the circumferential direction near the upper part of the body of the outer cylinder, and the outer cylinder is placed over the paper cup body. The inner surface of the horizontal ruled line of the cylinder is formed by adhering to the outer peripheral surface of the side wall near the upper part of the body of the paper cup main body to integrate them, and a gap is formed between the paper cup main body and the outer cylinder. And

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of a heat-insulating container according to the present invention, and is a schematic configuration diagram showing a left half and a right half in a sectional view and a front view, respectively. It is composed of a main body 2 and a hollow cylindrical outer cylinder 3 which is open both above and below.

The paper cup main body 2 is made of paper coated with a synthetic resin such as polyethylene on the inner surface or the inner and outer surfaces. Like the ordinary paper cup, the bottom plate 5 is wrapped around the lower part of the body 4 and the outer opening edge is formed. Orientation curl part 6
Is formed.

On the other hand, the hollow cylindrical outer cylinder 3 is made of paper alone or paper coated on one or both sides with a synthetic resin such as polyethylene, and an inward curl portion 8 is formed at the lower opening edge of the body portion 7. Have been. The outer cylinder 3 has a tapered shape in which the body 7 is slightly wider than the body 4 of the paper cup body 2, and an inwardly recessed horizontal ruled line 9 is provided in the circumferential direction near the upper part of the body. ing. And
The size in which the inner side surface of the horizontal ruled line 9 contacts the outer peripheral surface of the side wall near the upper part of the body of the paper cup body 2 and the inward curl portion 8 at the lower opening edge of the body part 7 contacts the outer periphery of the lower side wall of the paper cup body 2. Have been.

Then, the outer cylinder 3 having the above structure is put on the paper cup body 2, and the inner side surface of the horizontal ruled line 9 of the outer cylinder 3 is attached to the paper cup body 2.
The heat insulating container 1 shown in FIG. 1 is formed by adhering to the outer peripheral surface of the side wall near the upper part of the body by means of an emulsion adhesive or the like to integrate them. In some usages, the inward curl portion 8 formed at the lower opening edge of the outer cylinder 3 is also adhered to the outer peripheral surface of the side wall below the paper cup body 2, so that the paper cup body 2 and the outer cylinder 3 are joined. May be made more reliable.

In the heat-insulating container 1 having the above-described structure, a space 10 is formed between the body 4 of the paper cup body 2 and the body 7 of the outer cylinder 3, and the space 10 functions as a heat insulator. Moreover, in the vicinity of the upper part of the body of the outer cylinder 3, an inwardly depressed horizontal ruled line 9 is provided.
Is provided, voids 10 are formed at a certain interval from below to the horizontal ruled line 9. Therefore,
For example, when hot water is put into the heat insulating container 1, the inner body 4
Is prevented from spreading to the outer body 7 over a wide area, so that it does not become hot to grasp and hold any of the places normally gripped in this type of container.

FIG. 2 shows another example of the heat insulating container according to the present invention, and is a schematic configuration diagram showing a left half and a right half in a cross-sectional view and a front view, respectively. The heat-insulating container 1 shown in FIG. 2 has substantially the same configuration as that shown in FIG.
Are discontinuous. In the heat insulating container 1 shown in FIG. 2, the horizontal ruled line 9 is divided into six. This heat-insulating container 1 also covers the outer cylinder 3 having the above configuration on the paper cup main body 2, and applies an emulsion adhesive or the like to the inner side surface of the horizontal ruled line 9 of the outer cylinder 3 on the outer peripheral surface of the side wall near the upper part of the body of the paper cup main body 2. They are assembled by bonding them together to form an integral unit, and exhibit the same heat insulating effect as the heat insulating container 1 of FIG.

[0013] Further, on the body portion 4 of the paper cup body 2, a ridge projecting in the circumferential direction and protruding toward the inner side or the outer side may be formed to provide an injection reference line as a guide when pouring hot water. . When the injection reference line is provided in the paper cup body 2, it is preferable to provide the horizontal ruled line 9 above the injection reference line. With such a configuration, the heat of the hot water poured to the injection reference line is prevented from being directly transmitted to the body 7 of the outer cylinder 3 via the horizontal ruled line 9.

[0014]

The heat-insulating container of the present invention comprises a paper cup body having an outwardly curled portion at an upper opening edge, and a paper outer cylinder which is open at both upper and lower sides and has an inwardly curled portion at a lower opening edge. In the vicinity of the upper part of the body of the outer cylinder, a horizontally indented horizontal ruled line is provided in the circumferential direction.The outer cylinder is covered with the paper cup body, and the inner side of the horizontal ruled line of the outer cylinder is covered with the body of the paper cup body. It is formed by adhering to the outer peripheral surface of the side wall near the upper part and integrating them, and a gap is formed between the paper cup main body and the outer cylinder, so from the bottom to the horizontal ruled line of the outer cylinder Since the heat insulating voids are formed at a certain interval, the heat of the contents is hardly transmitted even if any part of the body is held by hand, so that the heat insulating property is excellent.

[Brief description of the drawings]

FIG. 1 shows an example of a heat insulating container according to the present invention.
It is a schematic block diagram which shows a left half and a right half by sectional drawing and front view, respectively.

FIG. 2 shows another example of the heat insulating container according to the present invention, and is a schematic configuration diagram showing a left half and a right half in a cross-sectional view and a front view, respectively.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulated container 2 Paper cup main body 3 Outer cylinder 4 Body part 5 Bottom plate 6 Outward curl part 7 Body part 8 Inward curl part 9 Horizontal ruled line 10 Air gap

Continued on the front page (72) Inventor Hideki Shimizu 1-1-1, Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Katsuhiro Yama-ken 1-1-1, Ichigaga-cho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd. (72) Inventor Mineo Mukai 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo F-term within Dai Nippon Printing Co., Ltd. 3E067 AA03 AA11 AB01 BA07A BB03A BB24A BB26A CA07 CA18 GA12

Claims (2)

[Claims] 1. An outer cylinder body comprising: a paper cup body having an outward curl portion at an upper opening edge; and a paper outer cylinder having upper and lower opening edges and an inward curl portion at a lower opening edge. In the vicinity of the upper part, a horizontal ruled line recessed inward is provided in the circumferential direction, the outer cylinder is placed on the paper cup body, and the inner side surface of the horizontal ruled line of the outer cylinder is formed on the outer peripheral surface of the side wall near the upper part of the body of the paper cup body. A heat-insulating container, which is formed by bonding and integrating the two, and wherein a gap is formed between the paper cup main body and the outer cylinder. 2. The heat-insulating container according to claim 1, wherein the horizontal ruled line provided in the vicinity of the upper portion of the outer cylinder in the circumferential direction is discontinuous.