JPH037339Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a foldable heater, and more specifically, it is used for heating and keeping food warm for emergency food or for outdoor eating and drinking. This paper relates to improvements to foldable heaters.

[Prior Art] As a simple heater conventionally used for heating and keeping food and drinks warm, the object to be heated is heated through a partition plate or the like having ventilation holes in the upper part of the main body of the container, which houses a heating element in the bottom. BACKGROUND ART There are known indirect heating type heaters that are provided with a chamber for accommodating objects, and heaters that directly heat an object by bringing the object into direct contact with a heating body. In these heaters, the upper air heating element is, for example,
Those that use quicklime and water, and those that cause an exothermic reaction between an oxidizing main agent such as iron or copper and water are used. (Japanese Utility Model Publication No. 48-22236, Utility Model Application No. 60-15863
(see publication).

[Problems to be solved by the invention] However, not only the former, that is, indirect type heaters, but also the latter, that is, direct type heaters that heat and keep warm the heated object by bringing the heating element into direct contact with the heated object. However, as the heating element expands during heating, the heated object and the heating element become separated, so that the object to be heated, such as cooked rice, is not sufficiently heated and cannot be eaten.

[Means for solving the problem] This invention was made with the intention of solving the above problem, and as a means to solve the above technical problem, it is possible to directly contact the heating element with the object to be heated, It is an object of the present invention to provide a foldable heater characterized in that a heating element is fixedly held so that the amount of heat from the heating element is reliably transmitted to an object to be heated during heating.

That is, this invention includes a collapsible container made of a heat-insulating and water-resistant material, a heating element and an object to be heated that is heated by the heat generated by the heating element, which is disposed within the container. and an insole member having at least a pair of side parts, the insole member being provided with a holding part for fixing the object to be heated so as to contact and hold the heating element. The aim is to provide a heater.

In this invention, the holding part for fixing the object to be heated is a slit that engages an outward flange provided on the object to be heated, or a holding part that is bent inward from the slit and the slit. In addition to being composed of two pieces, it is also composed of holes drilled in opposing sides and a rod-shaped body whose both ends engage with these holes, so it has an outward flange part like a pouch. It is also possible to fix the object to be heated.

[Effect] The above technical means works as follows.

By reliably fixing the object to be heated by the fixed holding part provided on the insole member disposed inside the container, even if the heating element expands during heating and keeping warm, the object to be heated and the heating element will not be separated. Since they do not separate, the amount of heat generated can be reliably transferred to the object to be heated, and the object to be heated can be sufficiently heated.

[Example] An example of this invention will be described below based on the drawings.

FIG. 1 is a perspective view showing the use state of a first embodiment of the heater of this invention. 30 and at least one pair of side portions 22 disposed within this container 10 that accommodates a heated object 40 heated by the calorific value of this heating element 30.
The main part is constituted by the insole member 20 having the following.

The container 10 includes a body 12 assembled into a rectangular cylindrical shape, a bottom plate (not shown) foldably connected to the lower end or bottom of the body 12, and a bottom plate (not shown) that is foldably connected to the upper end or opening of the body 12. It is composed of a lid part 18 consisting of an inner lid 14 and an outer lid 16 that can be connected together. In this case, the body part 12 may be formed into a rectangular shape with folding lines divided into four equal parts and then folded and glued at both ends, or it may be joined in advance and folded into a cylindrical shape. However, the mode is arbitrary. Further, the container 10 is made of paper of a certain thickness that does not deform when the heated object 40 and the heating element 30 are housed therein, and the surface thereof is subjected to an appropriate waterproofing treatment.
The container 10 may be made of cardboard laminated with a synthetic resin film or aluminum foil, or the container 10 itself may be made of styrofoam.

As shown in FIG. 2, the insole member 20 has a foldable box shape, and has a rectangular bottom portion 24 and side portions 22 connected to each side of the bottom portion 24 via bending lines 21. A fixed holding portion 50 of the object to be heated 40 is provided at an opposing portion of the opposing side portion 22 and is formed of a slit 52 that engages an outward flange portion 42 provided on the object to be heated 40 . It is being In this case, a set of sides 2
2 has two longitudinal slits 52 parallel to each other.
is provided downward from the upper end, and
The other set of sides 22 have two laterally parallel to each other.
Two slits 52 are bored, and the object to be heated 40 can be placed vertically or horizontally and stacked in a sandwich-like manner between the heating element 30 and the heating element 30, as required. Can be done. In this case, a case has been described in which the insole member 20 is provided with two sets of side parts 22 and slits 52 of different configurations, but it is not necessarily necessary to provide two sets of side parts 22, and at least one set of slits 52 is provided. The side portion 22 may be provided with a vertical or horizontal slit 52.

Figure 3 shows a second embodiment of this invention.
This is a case where the object to be heated 40 is held fixed more reliably. That is, the fixed holding portion 50 provided on the side portion 22 of the insole member 20
a slit 52 that engages with the outward flange portion 42 provided on the object to be heated 40;
This is a case where the holding piece 54 is bent inward from the holding piece 54. By bending the holding piece 54 inward from the slit 52 in this manner, the holding piece 54 can be bent even when the outward flange portion 42 does not reliably engage with the slit 52 due to a difference in the size of the object to be heated 40. The outward flange portion 42
Since the heated object 40 can be held even more securely, the object to be heated 40 can be fixed even more reliably.

Figure 4 shows the third embodiment of this invention.
This is a case in which the object to be heated 40 such as a pouch which does not have an outward flange portion 42 can be fixedly held. That is, in the case where the holding portion 50 for the object to be heated 40 is constituted by the holes 56 bored in the opposing sides of the insole member 20 and the rod-shaped body 58 whose both ends are engaged with the holes 56. be. By configuring the holding portion 50 with the hole 56 and the rod-shaped body 58 in this way, even the heated object 40 in the shape of a pouch or the like can be fixedly held by the rod-shaped body 58, and the heating element 30 can be fixedly held by the rod-shaped body 58. and the object to be heated 40 can be brought into contact with each other.

In order to heat and keep the heated object 40 warm using the heater of this invention configured as described above, first, after assembling the container 10, the insole member 20 is arranged inside the container and the holding part is 50, and next, the object to be heated 40 and the heating element 30 are placed in the container so as to be in contact with each other, and the object to be heated 40 is placed in the holding portion 5.
It is held fixed by 0. Then, by cutting one side of the heating element 30 and pouring water into that part,
Since the heating element 30 generates an exothermic reaction, the amount of heat generated is transmitted to the object to be heated 40, and the object to be heated 40 is heated and kept warm. At this time, the heating element 30 expands and tries to move away from the object to be heated 40, but the object to be heated 40
0 is fixed by the holding portion 50, the contact density of the object to be heated 40 further increases as the heating element 30 expands, and the amount of heat generated can be used effectively. In addition, since the bottom, lid, and side walls of the container 10 are double-layered, the container can be sealed without providing any notches or the like on the outer surface of the container, thereby increasing the heat insulation effect. It is also very strong.

Although FIG. 1 shows the case where the objects to be heated 40 are brought into contact with both sides of one heating element 30, as shown in FIG.
If the objects to be heated 40 are brought into contact with adjacent portions of 0, many objects to be heated 40 can be heated and kept warm at the same time. Further, as shown in FIG. 6, the object to be heated 40 and the heating element 30 can be stacked horizontally. In this case, the heating element 30
It is necessary to form the outer bag with a water-proof bag such as aluminum foil, and to make a part of the bag have a long water injection opening 32 facing upward to prevent moisture from spilling into the container. There is. Note that the components of the heating element 30 are the same as those of the conventional one, and for example, one made of quicklime and water, or one that causes an exothermic reaction between an oxidation generating main agent such as iron or copper and water is used.

[Effects of the invention] As explained above, according to the heater of this invention, the holding part for fixing the object to be heated is provided on the opposite side of the insole member disposed inside the foldable container. As a result, the following effects can be obtained.

1. Since the object to be heated is reliably held fixed by the holding portion, the contact with the heating element is not broken during the exothermic reaction of the heating element, and on the contrary, the contact density is increased and the heating effect can be improved.

2. It is compact and lightweight, making it convenient to carry, and it can be stored in a folded state, so it does not take up much storage space.

3. Since a double structure is formed by the container and the insole member, it is possible to achieve sealing performance, improve heat generation efficiency, and have high strength.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the use state of the first embodiment of the heater of this invention, Fig. 2 is a perspective view showing the insole member in the first embodiment, and Fig. 3 is the second embodiment of this invention. FIG. 4 is a perspective view showing an insole member in a third embodiment of this invention, and FIGS. 5 and 6 each show another usage state of the heater of this invention. They are a perspective view and a cross-sectional perspective view. Explanation of symbols, 10... Container, 20... Insole member,
22... Side portion, 30... Heating element, 40... Heated object, 42... Outward flange portion, 50... Holding portion, 52... Slit, 54... Holding piece, 54...
...hole, 56... rod-shaped body.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A collapsible container made of a heat-insulating and water-resistant material, a heating element, and the inside of this container that houses a heated object heated by the calorific value of the heating element. and an insole member having at least one pair of side portions disposed on the insole member, and the insole member is provided with a holding portion for fixing the object to be heated so as to contact and hold the heating element. Foldable heater. (2) The foldable heater according to claim 1, wherein the holding portion for fixing the object to be heated is a slit that engages an outward flange portion provided on the object to be heated. (3) The holding part that fixes the object to be heated is composed of a slit that engages an outward flange provided on the object to be heated, and a holding piece that is bent inward from the slit. A foldable heater according to claim 1 of the utility model registration claim. (4) Utility model registration claim 1, in which the holding part for fixing the object to be heated consists of holes drilled in opposing sides and a rod-shaped body whose both ends engage with these holes. Foldable heater as described in section.