JP2520984Y2 - Self-heating container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a self-heating container for sealing sake, coffee, etc. and capable of heating the contents without applying heat from the outside.

In this specification, the upper and lower sides refer to the upper and lower sides of FIG. 1, FIG. 3, FIG. 8 and FIG. 12 unless otherwise specified.

2. Description of the Related Art As this type of self-heating container, the one shown in FIG. 12 is known. In FIG. 12, a self-heating type container comprises a cylindrical body (1) made of a composite material mainly composed of paper, a metal top cover (2) fixed to both ends of the cylindrical body (1) and a bottom cover ( 3)
And a metal heater (4) with a top wall having a substantially inverted U-shaped vertical cross section, which is arranged in the lower part of the cylindrical body (1) and fixed to the cylindrical body (1), and is housed in the heater (4). And a water-sealed bag (6) in which water (5) is sealed and quicklime (7).
The top lid (2) is fixed to the cylindrical body (1) by double winding. A score line (not shown) is formed on the top lid (2) around the entire periphery thereof, and a portion surrounded by the score line is a removal portion (8). The removal portion (8) Attached to is a pull tab (9). The bottom lid (3) is fixed to the cylindrical body (1) by double winding. The heater (4) is fixed by winding the flange (4b) at the lower end of the peripheral wall (4a) around the lower end of the cylindrical body (1) together with the bottom lid (3). The bottom lid (3) closes the lower end opening of the heater (4). A sheet-like leakage prevention member (1) that prevents leakage of water (5) and quick lime (7) so as to cover the upper surface of the bottom lid (3).
0) is arranged. The bottom cover (3) has a pin insertion hole (1
1) and a vent hole (12) are formed and both holes (1
Each of 1) and 12) is closed by a sheet-like closing member (13).

The heating of the liquid to be heated (L) such as liquor and coffee sealed inside in such a self-heating container is performed as shown in FIG. That is, first, the container is turned upside down and the bottom lid (3) is turned upward, and then the closing member (1
3) is peeled off, the pin (15) is inserted into the heater (4) through the pin insertion hole (11), and the water seal bag (6) is pierced to let out the water (5). After that, pull out the pin (15) and turn the container upside down again. Then, water (5) and quick lime (7) come into contact with each other to cause an exothermic reaction,
This heat is transmitted to the liquid (L) through the wall of the heater (4), and the liquid (L) is heated.

Conventionally, the heater (4) in the self-heating container has been formed of a metal plate having a wall thickness of about 0.75 mm.

However, the conventional self-heating type container has the following problems. That is, insert the pin (15) into the pin insertion hole (11).
When the container is not turned upside down again after being inserted into the heater (4) from above and piercing through the water-sealed bag (6), that is, when the container is left in the state shown in FIG. ), The air present in the space (S) is heated and expands, and this pressure is applied to the cylindrical body (1), which causes the cylindrical body (1) to deform outward in the circumferential direction (see the chain line in FIG. 13). (See), the tightening force at the tightening section becomes weak. Also, in severe cases, the tightening can be removed. As a result, the liquid (L) may leak.

An object of the present invention is to provide a self-heating container that solves the above problems.

Means for Solving the Problems A first self-heating type container according to the present invention is a cylinder made of one kind of paper, a composite material mainly made of paper, plastic, and a composite material mainly made of plastic; Metal top and bottom lids fixed to both ends, a metal heater that is tubular with a top wall and is arranged in the lower part of the body, and is fixed to the body at the lower end of the peripheral wall, and inside the heater. In a self-heating container composed of two substances that are separated from each other and contact with each other to cause an exothermic reaction, the outer surface of the peripheral wall of the heater is
A flat bottomed recess is formed.

A second self-heating container according to the present invention is a cylinder made of one of paper, a paper-based composite material, plastic, and a plastic-based composite material, and a metal member fixed to both ends of the cylinder. A top lid and a bottom lid, a metal heater which is arranged in a tubular shape with a top wall in the lower part of the body and is fixed to the body at the lower end of the peripheral wall, and is housed in the heater separately from each other, and In a self-heating container composed of two substances that come into contact with each other to cause an exothermic reaction, one or more grooves are formed on the peripheral wall of the heater.

A third self-heating container according to the present invention comprises a cylinder made of one of paper, a paper-based composite material, plastic, and a plastic-based composite material, and a metal member fixed to both ends of the cylinder. A top lid and a bottom lid, a metal heater which is arranged in a tubular shape with a top wall in the lower part of the body and is fixed to the body at the lower end of the peripheral wall, and is housed in the heater separately from each other, and In a self-heating type container composed of two substances which come into contact with each other to cause an exothermic reaction, an outward bulging portion is formed on the top wall of the heater.

Action The flat bottom concave portion formed on the outer surface of the peripheral wall of the heater is easily subjected to external pressure and easily deformed. Further, the flat bottom concave portion formed on the outer surface of the peripheral wall of the heater, the groove formed on the peripheral wall of the heater, and the outward bulging portion formed on the top wall of the heater are the starting points for the deformation of the heater. Therefore, the heater is easily deformed. After contacting two substances such as water and quicklime that cause an exothermic reaction with each other, the container is not turned upside down again, and even if the air above the liquid is heated and expanded, the heater Since it is deformed, the cylindrical cylinder is prevented from being deformed.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts and parts as those shown in FIG. 12 and FIG. 13 are designated by the same reference numerals and explanations thereof will be omitted, and the same parts and same parts as shown in FIG. 1 to FIG. The same reference numerals are given and the description is omitted.

In FIG. 1, the heater (20) has a tapered cylindrical shape with a top wall (20c), and is tapered upward. On the outer surface of the peripheral wall (20a) of the heater (20), two flat bottomed recesses (21) are formed at symmetrical positions with respect to the axis. Further, an outer projecting flange (20b) is integrally provided at the lower end of the peripheral wall (20a) of the heater (20), and the flange (20
The peripheral edge of b) is the lower end of the cylindrical body (1) and the bottom lid (3)
It is fixed to the cylindrical body (1) by being wound together with the peripheral part of the. This heater (20) has a wall thickness of 0.
It is preferably formed of a metal plate of 03 to 0.5 mm.

In the self-heating type container provided with this heater (20), the sealed liquid to be heated (L) is carried out in the same manner as shown in FIG.
Is heated. After breaking through the water-tight bag (6), the container is not turned upside down again, but the space (S) above the liquid (L).
When the air present in is heated and expands and the pressure rises,
The heater (20) receives external pressure. Then, the concave portion (21) serves as a starting point of deformation, and the heater (20) deforms from the state shown in FIG. 2 (A) to contract as shown in FIG. 2 (B). Therefore, it is possible to prevent the cylindrical body (1) from being deformed outward in the circumferential direction due to the above pressure and weakening the winding tightening force at the winding tightening portion.

As shown in FIG. 3, the bottom lid (3) of the self-heating container may be formed with a downward bulge (22).

4 to 7 show still another embodiment of the present invention. In addition, FIG. 4 to FIG. 7 show a state when the water in the heater is brought into contact with quicklime, that is, the top lid of the container is at the bottom, the bottom lid is at the top, and the top wall of the heater is at the bottom. Indicates a state.

In FIG. 4, the top wall (25c) of the heater (25) bulges outward. On the outer surface of the peripheral wall (25a) of the heater (25), a plurality of vertically extending grooves (26) having a substantially V-shaped cross section are formed at predetermined intervals in the circumferential direction. Each groove (26)
Has one end reaching the top wall (25c) (see FIG. 4 (A)). This heater (25) has a flange (25b) at the open end of the peripheral wall (25a) and a bottom cover (3), which is wound around the cylindrical body (1) to tighten the heater (2) shown in FIG.
It is used instead of 0).

In the self-heating type container provided with this heater (26), the sealed liquid to be heated (L) is carried out in the same manner as that shown in FIG.
Is heated. After breaking through the water-tight bag (6), the container is not turned upside down again, but the space (S) above the liquid (L).
When the air present in is heated and expands and the pressure rises,
The heater (25) receives external pressure. Then, the groove (26) serves as the beginning of the deformation, and the heater (25) is deformed so that the side surfaces of the groove (26) are in close contact with each other, and the volume of the heater (25) becomes small (Fig. 4 (B)). )reference). Therefore, it is possible to prevent the cylindrical body (1) from being deformed outward in the circumferential direction due to the above pressure and weakening the winding tightening force at the winding tightening portion.

In FIG. 5, a plurality of spiral grooves (31) are formed on the outer surface of the peripheral wall (30a) of the heater (30) (see FIG. 5 (A)). This heater (30) has a peripheral wall (30a)
By tightening the flange (30b) at the open end of the cylinder (1) together with the bottom cover (3), the heater (2
It is used instead of 0).

In the self-heating type container provided with this heater (30), the sealed liquid to be heated (L) is carried out in the same manner as shown in FIG.
Is heated. After breaking through the water-tight bag (6), the container is not turned upside down again, but the space (S) above the liquid (L).
When the air present in is heated and expands and the pressure rises,
The heater (30) receives external pressure. Then, the groove (31) serves as a starting point for the deformation, and the peripheral wall (30a) of the heater (30) becomes the groove (3
The side faces of 1) are in close contact with each other and are deformed so as to contract in the axial direction, and the volume of the heater (30) becomes small (see FIG. 5 (B)). Therefore, it is possible to prevent the cylindrical body (1) from being deformed outward in the circumferential direction due to the above pressure and weakening the winding tightening force at the winding tightening portion.

In FIG. 6, on the outer surface of the peripheral wall (35a) of the heater (35), a plurality of annular grooves (36) are formed vertically and densely, and the whole is formed in a bellows shape. See FIG. 6 (A). This heater (35) has a flange (35b) at the open end of the peripheral wall (35a) and a bottom cover (3), which is wound around the cylindrical body (1) to tighten the heater (2) shown in FIG.
It is used instead of 0).

In the self-heating type container equipped with this heater (35), the sealed liquid (L) to be heated is sealed in the same manner as that shown in FIG.
Is heated. After breaking through the water-tight bag (6), the container is not turned upside down again, but the space (S) above the liquid (L).
When the air present in is heated and expands and the pressure rises,
The heater (35) receives external pressure. Then, the groove (36) serves as the starting point of the deformation, and the peripheral wall (35a) of the heater (35) becomes the groove (3
The side faces of 6) are in close contact with each other and are deformed so as to contract in the axial direction, and the volume of the heater (35) becomes small (see FIG. 6 (B)). Therefore, it is possible to prevent the cylindrical body (1) from being deformed outward in the circumferential direction due to the above pressure and weakening the winding tightening force at the winding tightening portion.

In the heater shown in FIGS. 4 to 6, each groove may be formed on the inner surface of the peripheral wall.

In FIG. 7, a stepped outward bulging portion (41) is formed on the outer surface of the top wall (40c) of the heater (40) (see FIG. 7 (A)). This heater (40) is configured by winding a flange (40b) at the open end of the peripheral wall (40a) together with a bottom lid (3) around a cylindrical body (1), thereby heating the heater (2) shown in FIG.
It is used instead of 0).

In the self-heating type container provided with this heater (40), the sealed liquid to be heated (L) is treated in the same manner as shown in FIG.
Is heated. After breaking through the water-tight bag (6), the container is not turned upside down again, but the space (S) above the liquid (L).
When the air present in is heated and expands and the pressure rises,
The heater (40) receives external pressure. Then, the stepped outer bulging portion (41) of the top wall (40c) is deformed so as to be recessed inward, and the volume of the heater (40) becomes smaller (see FIG. 7 (B)).
Therefore, it is possible to prevent the cylindrical body (1) from being deformed outward in the circumferential direction by the above-mentioned pressure and weakening the winding tightening force at the winding tightening portion.

Still another embodiment of the present invention is known from FIGS. 8 to 10. In FIGS. 8 to 10, the bottom lid (3) is bulged downward to form a deformation downward bulging portion (45).

A water-tight container (46) is housed in the lower part of the heater (20), and water (5) is put in the container (46). The water-tight container (46) has a body (47) that opens downward.
And a lid (48) for closing the lower end opening of the body (47). A hole (49) is formed in the central portion of the bottom (47a) of the body (47) excluding the peripheral portion. This hole (49)
Is closed by a closing sheet (50) made of an aluminum foil bonded to the upper surface of the bottom (47a), a laminated aluminum foil, a plastic film, a laminate of paper and a synthetic resin, or the like. Further, a vertical rod-shaped sheet breaking member (51) having a plurality of upper projections (52) having sharp tips at its upper end is provided at a portion corresponding to the hole (49) below the bottom (47a) of the main body (47). ) Has been placed. The sheet breaking member (51) is
The cross section is cruciform. Further, the sheet breaking member (51) is
The bottom (47a) is connected to a portion around the hole (49) by a plurality of connecting members (53) provided at predetermined intervals in the circumferential direction. A peripheral portion of the lid (48) is joined to a lower surface of a flange (47b) provided at a peripheral edge of a lower end opening of the main body (47), and a central portion thereof bulges downward. This downward bulge is indicated by (48a). Body (4
7) and the lid (48) are integrally molded from synthetic resin. Such a water-tight container (46) is placed in the heater (20) such that the flange (47b) abuts the lower surface of the flange (20b) at the lower end of the peripheral wall (20a) of the heater (20), and the container body is Flange (47b) and lid (4) of (47)
The peripheral edge of 8) is interposed between the bottom lid (3) and the flange (20b). Further, quick lime (7) is put in the upper part of the heater (20).

In such a configuration, when heating the liquid to be heated (L), such as alcohol and coffee, which is sealed in the self-heating container, the bottom lid (3) is first turned upside down and turned upward. After that, the bulging part (45) of the bottom lid (3) is pushed downward in FIG. 10 to deform it, and the bulging part (48a) of the lid (48) of the water-tight container (46) also moves downward in FIG. By deforming, the vertical bar-shaped sheet breaking member (51) is moved downward in FIG. Then, the connecting member (53) is deformed and the breaking member (51) becomes the 10th.
Moving downward in the figure, the tips of all the protrusions (52) hit the closing seat (50), and the protrusions (52) close the closing seat (5).
0) is broken at once, water (5) quickly flows into the quick lime (7) side through the hole (49), and both of them cause an exothermic reaction. The resulting heat heats the liquid (L). At this time, the closing member (13) attached to the bottom lid (3)
Is removed so that the heated and expanded air can escape to the outside through the gas vent hole (12). After breaking through the closing sheet (50), the container is not turned upside down again, but the air existing in the space (S) above the liquid (L) is heated and expanded to increase the pressure. Similarly, the heater (20) alone or the heater (20) and the water-tight container (46) are deformed so as to contract. Therefore, it is possible to prevent the cylindrical body (1) from being deformed outward in the circumferential direction due to the above pressure and weakening the winding tightening force at the winding tightening portion.

In the self-heating type container shown in FIGS. 8 to 10, the water sealed container shown in FIG. 11 may be used. 11th
In the figure, the portion of the water-tight container (56) corresponding to the hole (49) below the bottom (47a) of the body (47) is
A ring-shaped closing sheet breaking member (57) having a plurality of upper projections (58) with sharp tips on the upper surface is arranged. The closing sheet breaking member (57) is provided with a seat (59) for receiving the upper end of a vertical rod member (61) described later. The closing sheet breaking member (57) is connected to the portion around the hole (49) in the bottom (47a) by a plurality of connecting members (60) provided at predetermined intervals in the circumferential direction. A vertical bar member (61) protruding upward is integrally provided at the center of the upper surface of the lid (48). The upper end of the vertical rod member (61) is located slightly below the closing sheet breaking member (57).

In such a structure, when heating a liquid to be heated (L), such as alcohol and coffee, which is sealed in a self-heating type container, the heating is performed in substantially the same manner as that shown in FIGS. 8 to 10. Be seen. That is, the bulging portion (45) of the bottom lid (3) is pushed to move the vertical rod-shaped member (61), and the tip end thereof is brought into contact with the seat (59) of the closing sheet breaking member (57) to cause the member (57). )Press. Then, the connecting member (60) is deformed and the breaking member (5
7) moves, the tips of all the protrusions (58) hit the closing sheet (50), and the protrusions (58) close the closing sheet (50).
Are broken at once, water (5) quickly flows into the quick lime (7) side through the hole (49), and both of them cause an exothermic reaction.
The resulting heat heats the liquid (L).

In addition, in the self-heating type container shown in FIG. 8 to FIG.
The heater shown in FIGS. 4 to 7 can also be used.

Effect of the Invention According to the self-heating type container of the present invention, as described above, after the two substances such as water and quicklime that come into contact with each other to cause an exothermic reaction are brought into contact with each other, the container is not turned upside down again. Even if the air existing above the liquid is heated and expanded, the heater is deformed, so that the deformation of the cylindrical body is prevented. Therefore, it is possible to prevent the contents from leaking due to the loosening of the winding portion or the loosening of the winding portion.

[Brief description of drawings]

FIG. 1 is a vertical longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 shows a heater in a case where water in the heater is brought into contact with quicklime, and the container is not turned upside down again. FIG. 3A is a perspective view before deformation, FIG. 3B is a perspective view after deformation, FIG. 3 is a partial vertical vertical sectional view showing a modification of the bottom lid, and FIG. FIG. 5A shows a modified example of FIG. 4A, a perspective view before the modified shape, a perspective view after the modified shape, and FIG. 5 shows a second modified example of the heater. Is a perspective view before deformation, FIG. 6B is a perspective view after deformation, FIG. 6 is a third modification of the heater, FIG. 6A is a perspective view before deformation, and FIG. ) Is a perspective view after deformation, FIG. 7 shows a fourth modification of the heater, FIG. 7A is a perspective view before deformation, FIG. 7B is a perspective view after deformation, and FIG. ~ Fig. 10 shows another embodiment of the present invention, and Fig. 8 shows vertical Sectional view, FIG. 9 is a partially cutaway perspective view of the water-sealed container, FIG. 10 is a vertical vertical cross-sectional view of a state in which the contents are heated, and FIG. FIG. 12 is a vertical perspective sectional view of a conventional self-heating type container, and FIG. 13 is a partial vertical vertical sectional view of a conventional self-heating type container in which contents are heated. (1) …… Cylinder body, (2) …… Top lid, (3) …… Bottom lid,
(20) (25) (30) (35) (40) …… heater, (20a)
(25a) (30a) (35a) ... peripheral wall, (21) ... recess, (2
6) (31) (36) …… Groove, (40c) …… Top wall, (41) ……
Stepped outward bulge.

Claims (3)

(57) [Scope of utility model registration request] 1. A cylinder made of one of paper, a paper-based composite material, plastic, and a plastic-based composite material, and metal top and bottom lids fixed to both ends of the cylinder. It has a cylindrical shape with a top wall and is placed in the lower part of the body, and it is housed separately from the metal heater fixed to the body at the lower end of the peripheral wall and inside the heater, and comes into contact with each other to cause an exothermic reaction. A self-heating container comprising two substances to be raised, wherein a flat bottom recess is formed on the outer surface of the peripheral wall of the heater. 2. A cylinder made of one of paper, a paper-based composite material, plastic, and a plastic-based composite material, and metal top and bottom lids fixed to both ends of the cylinder. It has a cylindrical shape with a top wall and is placed in the lower part of the body, and it is housed separately from the metal heater fixed to the body at the lower end of the peripheral wall and inside the heater, and comes into contact with each other to cause an exothermic reaction. A self-heating container composed of two substances to be raised, wherein one or more grooves are formed on the peripheral wall of the heater. 3. A body made of one of paper, a paper-based composite material, plastic, and a plastic-based composite material, and metal top and bottom lids fixed to both ends of the body. It has a cylindrical shape with a top wall and is placed in the lower part of the body, and it is housed separately from the metal heater fixed to the body at the lower end of the peripheral wall and inside the heater, and comes into contact with each other to cause an exothermic reaction. A self-heating container consisting of two substances to be agitated, wherein an outward bulge is formed on the top wall of the heater.