JP2000103478A - Heat insulated container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container superior in heat-insulating property which hardly conducts heat of its contents regardless where on its body part it is held with hands. SOLUTION: The 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. The outside tube 3 is provided at a predetermined intervals with a plurality of vertical ruled lines 9 recessed inward at the top of its body part. The paper cup main body 2 is covered with the outside tube 3 for adhering the recessed inside face of the vertical ruled lines 9 provided at the top of the outside tube 3 body to the side wall outer peripheral face of the paper cup main body 2 to form them integrally, and forming a gap 10 between the paper cup main body 2 and the outside tube 3. Because heat- insulation gap 10 is formed at certain intervals from the bottom to the vertical ruled lines 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 is provided with a plurality of vertical ruled lines depressed inward above the body at predetermined intervals, and the outer cylinder is placed over the paper cup body. The inner surface of the vertical ruled line of the outer cylinder is adhered to the outer peripheral surface of the side wall above the body of the paper cup main body, and the two are formed integrally, and a gap is formed between the paper cup main body and the outer cylinder. Features.

[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. Further, 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 a plurality of inwardly concave vertical ruled lines 9 are provided at predetermined intervals above the body. ing. And
The size in which the inner surface of the concave portion of the vertical ruled line 9 contacts the outer periphery of the side wall immediately below the outward curl portion 6 of the paper cup body 2 and the inward curl portion 8 of the lower opening edge of the body portion 7 contacts the outer periphery of the lower side wall of the paper cup body 2. It is said.

Then, the outer cylinder 3 having the above structure is put on the paper cup body 2 and the inner surface of the concave portion of the vertical ruled line 9 provided above the body of the outer cylinder 3 is placed on the outer peripheral surface of the side wall above the body of the paper cup body 2 by emulsion. The heat insulating container 1 shown in FIG. 1 is formed by bonding the two together by means of an adhesive or the like. 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, since the vertical ruled line 9 recessed inward is provided above the body of the outer cylinder 3, the space 1 extends from below to the vertical ruled line 9.
Zeros are formed at certain intervals. Therefore, when, for example, hot water is put into the heat insulating container 1, the heat of the inner body 4 is prevented from being transmitted to the outer body 7 over a wide range,
It doesn't get hot to grab and hold any of the places normally held in this type of container.

[0012] In addition, a projection that protrudes inward or outward in the circumferential direction may be formed on the body 4 of the paper cup body 2 to provide an injection reference line that serves as a guide when pouring hot water. . When the injection reference line is provided on the paper cup main body 2, it is preferable to provide the vertical 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 vertical ruled line 9.

[0013]

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. The outer cylinder is provided with a plurality of vertical ruled lines that are depressed inward above the body at predetermined intervals.The outer cylinder is covered with the paper cup body, and the inner side of the vertical ruled line of the outer cylinder is covered with the paper cup body. It is formed by adhering to the outer peripheral surface of the side wall on the upper part of the body and integrating them, and a gap is formed between the paper cup body and the outer cylinder, so that the vertical ruled line of the outer cylinder from below 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.

[Explanation of symbols]

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

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideki Shimizu 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Katsuhiro Yamagata 1-1-1, Ichigaga-cho, Shinjuku-ku, Tokyo No. 1 Dai Nippon Printing Co., Ltd. (72) Inventor Mineo Mukai 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo F-term (reference) 3N067 AA03 AA11 AB01 BA07A BB01A BB26A CA18 EA04 EC22 ED03 EE07 GA12

Claims (1)

[Claims] 1. A paper cup body having an outward curl portion at an upper opening edge, and a paper outer cylinder having an inward curl portion opening at both upper and lower sides and having a lower opening edge. A plurality of inwardly-depressed vertical ruled lines are provided at predetermined intervals above the body, and the outer cylinder is placed over the paper cup body, and the inner side surface of the vertical ruled line of the outer cylinder is the outer peripheral surface of the side wall above the body of the paper cup body. A heat-insulating container formed by bonding the two to each other to form an integral unit, wherein a gap is formed between the paper cup body and the outer cylinder.