JPH11100032A - Barrel-shaped, container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a barrel-shaped container which is excellent in heat insulation and capable of preventing dew condensation. SOLUTION: In a barrel-shaped container, both ends of a fan-shaped paper board are butted to each other to form an inner body part 13, both ends of the fan-shaped paper board which is slightly wider than the fan-shaped paper board and on which at least one projecting bar 14a is pressed in the longitudinal direction are butted to each other to form an outer body part 14 having the projecting bar 14a on the outer circumference, the outer body part 14 is fitted and adhered to the outer circumference of the inner body part 13 so as to form a stepped part 11a between the upper end of the inner body part 13 and the upper end of the outer body part 14, a bottom surface 15 formed of a circular paper board is fitted and adhered to the inside of a lower end part of the inner body part 13 to constitute a barrel body 11, and a lid 12 consisting of a circular paper board is fitted to the stepped part 11a in an attachable/ detachable manner. A closed-cell foamed polyurethane 18 and an aluminum foil 19 are attached to the inner surface of the container to thermally insulate the inside of the container from the outside, and to prevent generation of dew condensation on the surface of the container.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a barrel-shaped container suitable for storing frozen food or low-temperature stored food.

[0002]

2. Description of the Related Art As one type of this type of barrel-shaped container, Japanese Patent No. 2571543 filed by the present applicant discloses a fan-shaped paperboard in which both ends are joined to form an inner trunk portion. The outer body having the convex shape is formed on the outer periphery by abutting both ends of a fan-shaped paperboard having a slightly wider width and at least one convex shape press-formed along the longitudinal direction, and the upper end of the inner body portion. The outer trunk is fitted and adhered to the outer periphery of the inner trunk so that a step is formed between the upper end of the outer trunk and the bottom made of circular paperboard is fitted to the inside of the lower end of the inner trunk. A barrel-shaped container is disclosed in which a barrel is formed by bonding, and a lid made of a circular paperboard is detachably fitted to the step. In this barrel-shaped container, since the stability of the paperboard used for the material is not as strong as that of wood, the operation of bending the fan-shaped paperboard into a round shape and forming the body does not require special skill, and the wooden barrel-shaped container is not required. Since there is no need for a tag to prevent the shape of the body from being lost as in the case of a container, there is an advantage that it can be manufactured at low cost.

[0003]

However, when the frozen food taken out of the freezer or the low-temperature stored food taken out of the refrigerator is put into the above-mentioned paperboard barrel-shaped container, the temperature difference between the inside and outside of the container causes the surface of the container to fall on the surface of the container. Condensation occurs,
Condensation may cause the paperboard of the barrel to get wet and lose its shape. In view of the above, an object of the present invention is to prevent the shape of a paperboard barrel-shaped container from being lost due to dew condensation and to improve the cooling performance.

[0004]

According to a first aspect of the present invention, an inner trunk portion is formed by abutting both ends of a fan-shaped paperboard, and is slightly wider than the fan-shaped paperboard and has at least one convex shape. The both ends of the fan-shaped paperboard pressed along the longitudinal direction are joined together to form an outer trunk having the convex shape on the outer periphery, and a step is formed between the upper end of the inner trunk and the upper end of the outer trunk. The barrel portion is formed by fitting and bonding the outer body portion to the outer periphery of the inner body portion so as to be formed, and fitting and bonding the bottom surface made of circular paperboard to the inside of the lower end portion of the inner body portion. Wherein a closed-cell plastic material is applied to the inner body, the bottom surface, and the inner surfaces of the lid. According to a second aspect of the present invention, in the barrel-shaped container according to the first aspect, an aluminum foil is attached to a surface of the closed-cell plastic material attached to the inner body, the bottom surface, and each inner surface of the lid. It is characterized by the following. According to a third aspect of the present invention, in the barrel-shaped container according to the first or second aspect, a closed-cell polyurethane material is used as the closed-cell plastic material.

[0005]

According to the first aspect of the present invention,
Because the closed-cell plastic material is applied to the inner surface of the barrel-shaped container, the inside and outside of the container are insulated by the closed-cell plastic material with excellent heat insulation even when frozen food or low-temperature-stored food is put, and dew condensation occurs on the container surface. Can be prevented. Therefore,
It is possible to prevent the paperboard of the barrel-shaped container from getting wet and becoming out of shape due to condensation. In addition, the coolness of the barrel-shaped container is also improved, which makes it suitable for carrying frozen food or low-temperature stored food. According to the second aspect of the present invention, since the aluminum foil is adhered to the surface of the closed-cell plastic material, the heat-reflecting property of the aluminum foil in addition to the heat-insulating property of the closed-cell plastic material further enhances the heat insulating effect inside and outside the container. And dew condensation can be prevented. According to the third aspect of the present invention, since a polyurethane material capable of foaming a thin cellular plastic material is used as the closed-cell plastic material, a barrel-shaped container that is not bulky and has excellent heat insulating properties can be manufactured. Becomes

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a barrel-shaped container 1 according to an embodiment of the present invention.
0 is shown. The barrel 10 includes a barrel 11 and a lid 12 detachably fitted to the barrel 11. The barrel 11 includes an inner barrel 13, an outer barrel 14, and a bottom 15. The inner trunk portion 13 is formed by bending a fan-shaped paperboard 13A as shown in FIG. As shown in FIG. 3, the thickness of the paperboard 13 </ b> A becomes 1 to 2 mm on a surface which becomes an inner surface when bent round.
The closed cell polyurethane material 18 is adhered, and an aluminum foil 19 is adhered on the surface of the closed cell polyurethane material 18. The plate material 13A is press-formed into a required shape in a state where the closed-cell polyurethane material 18 and the aluminum foil 19 are bonded in advance. The outer trunk portion 14 has a fan shape as shown in FIG.
Is formed by bending a paperboard 14A obtained by press-forming the sheet and abutting both ends.

[0007] The barrel 11 is an abutting portion 1 of the inner body 13.
The outer body 14 is fitted to the outer periphery of the inner body 13 so that the abutting part of the outer body 14b faces the outer body 14b, and the fitting surface is bonded with an adhesive. It is manufactured by fitting a circular paperboard bottom surface 15 and bonding with an adhesive. As shown in FIG. 6, a closed-cell polyurethane material 18 having a thickness of about 1 to 2 mm is also provided on the inner surface of the paperboard bottom surface 15.
And an aluminum foil 19 are adhered. In the barrel body 11 thus manufactured, a step portion 11a corresponding to the difference in width between the two paperboards 13A, 14A is formed between the upper end surface of the inner body portion 13 and the upper end surface of the outer body portion 14. , The step 11
A circular paperboard lid 12 is removably fitted to a. The closed-cell polyurethane material 18 having a thickness of about 1 mm is also provided on the inner surface of the paperboard lid 12 as shown in FIG.
And an aluminum foil 19 are adhered. 5 and 6, when the barrel 17 is wrapped with the wrapping paper 16 and the string 17 is hung thereon, the barrel 14 has a convex shape 14a. 17 can be hooked.

The structure of the barrel-shaped container 10 according to this embodiment is as described above. Since the closed-cell polyurethane material 18 and the aluminum foil 19 are adhered to the inner surface of the paperboard barrel-shaped container 10, frozen food and Even if the low-temperature storage food is put in, the inside and outside of the container 10 are insulated by the heat insulating effect of the closed-cell polyurethane material 18 and the heat reflection effect of the aluminum foil 19, so that dew condensation on the surface of the container 10 can be prevented. Accordingly, it is possible to prevent the paperboard of the barrel-shaped container 10 from getting wet and out of shape due to dew condensation. Also,
The cold insulation of the barrel-shaped container 10 is also improved, and it is suitable for carrying frozen food or low-temperature stored food. In particular, since the polyurethane material 18, which can be formed by foaming a thin cellular plastic material, is used as the heat insulating material, the barrel-shaped container 10 excellent in heat insulation without being bulky can be manufactured, and the commercial value is improved. Further, according to the present embodiment, the convex 1
4a, the barrel-shaped container 10 wrapped with the wrapping paper 16
When the string 17 is hung, the string 17 is hung by the protruding shape 14a and is hard to come off, so that the operation of hanging the packing string becomes easy. Further, since the convex shape appears like a tag, a design effect is achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a barrel-shaped container according to an embodiment of the present invention.

FIG. 2 is a development view showing a material of an inner trunk portion constituting the barrel-shaped container.

FIG. 3 is a partially enlarged cross-sectional view showing a material of an inner body constituting the barrel-shaped container.

FIG. 4 is a development view showing a material of an outer trunk portion constituting the barrel-shaped container.

FIG. 5 is a perspective view showing a barrel-shaped container wrapped with wrapping paper and strapped.

FIG. 6 is a partially enlarged sectional view of a barrel-shaped container wrapped with wrapping paper and strapped.

[Explanation of symbols]

10: barrel-shaped container, 11: barrel, 11a: step, 12 ...
Lid, 13: inner trunk, 13A: fan-shaped paperboard, 13b: abutting part, 14: outer trunk, 14A: fan-shaped paperboard, 1
4a: convex, 14b: abutting portion, 15: bottom, 16
... wrapping paper, 17 ... string, 18 ... closed-cell polyurethane material,
19 ... Aluminum foil.

Claims (3)

[Claims] 1. A fan-shaped paperboard formed by pressing both ends of a fan-shaped paperboard to form an inner body portion, and having a width slightly larger than the fan-shaped paperboard and at least one convex shape being press-formed along a longitudinal direction. The outer body having the convex shape is formed on the outer periphery by abutting both ends, and the outer body is formed on the outer periphery of the inner body such that a step is formed between the upper end of the inner body and the upper end of the outer body. The bottom portion made of a circular paperboard is fitted and adhered to the inside of the lower end portion of the inner trunk portion to form a barrel body, and a lid made of a circular paperboard is detachably fitted to the step portion. A barrel-shaped container, wherein a closed-cell plastic material is applied to the inner body, the bottom surface, and the inner surface of the lid. 2. The barrel-shaped container according to claim 1, wherein an aluminum foil is applied to a surface of the closed-cell plastic material applied to the inner body, the bottom surface, and the inner surfaces of the lid. . 3. The barrel-shaped container according to claim 1, wherein a closed-cell polyurethane material is used as the closed-cell plastic material.