JPH0155006B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention stores a general-purpose beverage can in a paper tube,
This invention relates to a container that can be heated and heated through a chemical reaction so that the beverage can can be drunk without being removed from the paper tube. (Prior Art) The technology of heating and warming food and drinks using the exothermic reaction between quicklime and other compounds and water is well known. For example, Japanese Patent Publication No. 35-10470 describes a technique in which quicklime is placed at the bottom of a paper container, water is poured into the container, and food cans are placed on the container to heat it. However, this technique is not suitable for consumer products because it requires the user to pour water and then install the can. Consumers are required to be able to heat the beverage can quickly with a single operation, such as by inserting a pin, and to be safe in that the heat-generating material does not separate from the beverage can inadvertently. In recent years, containers that store alcoholic beverages and heat them have become commercially available, but these are generally
It has the shape described in No. 89333. This is excellent in that it heats up safely and quickly by inserting and pulling out a pin, but as you can see from Figure 1, general-purpose beverage cans cannot be used, and special containers are required. Requires. In addition, the container of Japanese Patent Publication No. 50-7289 can be heated by using a beverage can as the container 4, but it requires time and effort to remove the container 4, pierce it with a pin, and set it again. The heat generating material such as quicklime is separated from the container 4. Further, Japanese Patent Application Laid-Open No. 62-9151 discloses a reactor in which a pyrogenic substance and an inducing substance are sealed and joined to a food/drink container. According to the technology disclosed in this publication, although the beverage can and the heat-generating material are not easily separated, the beverage can is directly fixed to the reactor containing the heat-generating material, thereby sealing the reactor. Therefore, manufacturing is extremely difficult. In addition, if a general-purpose can is used in a container obtained using this technology, heating of the beverage is performed only by heat transfer from the bottom of the beverage can, which essentially seals the reaction, resulting in poor heating efficiency. In some cases, there was a risk that the beverage would deteriorate due to extreme partial heating. (Problems to be Solved by the Invention) The present invention can be applied to general-purpose beverage cans to sufficiently heat or heat them with a simple operation, and prevents the beverage can and the heat-generating material from inadvertently separating. It is an object of the present invention to provide a heating container that can be easily produced industrially. (Means for solving the problem) In order to achieve this object, the present invention seals one end of a paper tube to form a bottom, and on the bottom, a compound that reacts with water to generate heat and a water container are provided. A heat-generating material container is filled and sealed with the chemical compound, and reaction means for destroying the water container from the outside of the paper tube is provided. The beverage can is supported on the heat-generating material container with a suitable support means, and the paper tube is reduced in diameter around the upper portion of the beverage can to remove the beverage can. To provide a heating container characterized by preventing the above. (Function) In the heating container of the present invention, the bottom and the support means support the beverage can, and the diameter reduction of the paper tube prevents the beverage can from coming off. and water) are fixed inside the paper tube,
The two will not be separated inadvertently. In addition, when this heating container is used, the beverage can is heated from the bottom, and the water vapor generated by the reaction rises between the beverage can and the paper tube and is also heated from the surroundings, resulting in efficient heating. Ru. In addition, since a reaction means is provided to destroy the water container from the outside,
Even when heat is generated, there is no need to separate the two. (Description of Examples) The present invention will be described below with reference to the drawings. FIG. 1 of the drawings is a sectional view showing an embodiment of the present invention, and FIGS. 2 to 7 are perspective views showing each material used in the embodiment of FIG. 1. FIG. 8 is a sectional view showing another embodiment. First, the embodiment shown in FIG. 1 will be explained. 1st
The illustrated embodiment includes a paper tube 1, a beverage can 2, a heat generating material container 3 containing a compound that generates heat by reacting with water and a container 5 containing water, a support member 4, a bottom member 8 consisting of a metal lid, The reaction means consists of a cushioning sheet 9, a plastic cap 7, a label A, and a piercing pin 6 (not shown).
Consists of a hole drilled in each. (Denoted with symbols 7a, 8a, and 9a, respectively). The bottom of the paper tube 1 is sealed by a bottom member 8 made of a rigid metal lid with a hole 8a in the center, and both are fixed by being wrapped around the periphery. The hole 8a in the center of this bottom member 8 is
It is covered from the outside by pasting a plastic film label A. A heat generating material container 3 is placed on the bottom member 8 via a cushioning sheet 9, and a substantially cylindrical support member 4 is placed around the heat generating material container 3. This support member 4 is a support means for supporting the beverage can 2, but as will be described later, it can be omitted when the heat generating material container 3 is rigid, in which case the heat generating material container 3 functions as a supporting means. When using the support member 4, it is desirable that the size is such that the bottom surface of the beverage can 2 comes into contact with the top surface of the heat generating material container 3. A general-purpose beverage can 2 is placed on the heat generating material container 3 and the support member 4. As shown in the figure, a gap is formed between the side of the beverage can 2 and the paper tube 1 to the extent that water vapor can rise. Moreover, it is desirable that the upper part 21 of the beverage can 2 has a taper, and the diameter of the upper part 11 of the paper tube 1 is reduced along this taper. Thus, the heat generating material container 3 and the beverage can 2 are fixed inside the paper tube. Note that if a plastic ring is fitted to the outside of the upper part of the paper tube 11, the paper tube 11 will be fixed even more securely. A plastic cap 7 is provided on the outside of the bottom member 8.
is installed, and this brass cap 7
It also has a piercing hole 7a in the center. Note that, as will be described later, a pin 6 can be attached to the cap 7, and by removing this pin 6, the label A is pierced through the hole 6a of the cap 6, and the hole 8a of the bottom member and the cushioning sheet are inserted. It is possible to puncture the water container 5 through the hole 9a and destroy it, causing the water and the compound to react and generate heat.
The inner diameter of the paper tube 1 is slightly larger than the outer diameter of the beverage can 2, and is large enough to form a gap long enough to allow water vapor to rise when the beverage can 2 is stored. Each material will be explained below. Paper tube 1 The paper tube 1 may be a normal one, but it is preferably one with excellent heat resistance and heat insulation that can withstand temperatures of about 100°C. Paper tubes are relatively inexpensive and opaque, so
The heat-generating material container 3 and the like inside are not visible, which is preferable in terms of appearance. Beverage Can 2 The beverage can 2 may be a general-purpose one, for example, one that stores beverages such as juice and coffee. Particularly preferred is one in which the upper part 21 is tapered as shown in FIG. Although the lower part 22 has a step, it does not necessarily need to have a step. In addition, 23 is a pull tab for opening. Heat-generating material container 3 Inside the heat-generating material container 3, a compound 31 that generates heat by reacting with water and a water container 5 are stored. As the compound X, granular or powdered magnesium chloride of quicklime can be used. water container 5
is filled with water, but this may also be water in which antifreeze salt such as sodium chloride is dissolved.
At this time, it will not freeze and can be used even in cold regions. As shown in FIG. 5, the water container 5 has a main body 51 formed by drawing and molding a plastic sheet or film, filled with water, and a lid 52 made of plastic film welded to the main body 51. Heat generating material container 3
As shown in FIGS. 3a and 3b, it consists of a storage section 31 and a lid 32 joined to the storage section 31. In addition,
FIG. 3a is a perspective view of the heat generating material container 3 viewed diagonally from above, and FIG. 3b is a perspective view of the heat generating material container 3 viewed diagonally from below. The storage portion 31 can be manufactured by drawing and molding a plastic sheet or film. In this case, it is desirable that the lid 32 is also made of a thin material such as plastic film or metal foil. and,
The two can be joined by adhesive or heat welding. When heat is generated, the heat and the expansion of the compound cause it to separate from the joint, allowing water vapor to escape to the outside. Further, the storage section 31 may be made of heat-resistant and rigid material such as a metal or plastic molded product. In this case, a pin 6 is provided at the bottom of the storage section 31.
A thin wall portion 3a for piercing should be provided. The lid 32 can be made of a thin material such as plastic film or metal foil and bonded to it, but it is also possible to use a metal plate or a rigid plastic molded product and glue it to the storage part 31 with an adhesive, or to attach both together. They may be joined by fitting together. When the lid 32 is made of a rigid material, a part of the joint between the lid 32 and the storage section 31 may be provided with a part that is easily peeled off using a heat-melting adhesive such as rubber or acrylic.
It is possible to allow water vapor generated during heat generation to escape to the outside of the heat-generating material container 3 by making a hole in the heat-generating material container 2 or by pasting a plastic film label coated with a hot-melt adhesive onto the hole made in the lid 32. desirable. If the lid 32 is made of a thin material, the heat pressure generated during heat generation will cause the lid 32 to break and water vapor will escape, so no other measures are required. As can be seen from FIG. 1, the escaped water vapor passes between the beverage can 2 and the paper tube 1, heats the beverage can 2 from its surroundings during this time, and escapes upward. The heat insulating properties of the paper tube 1 help keep the hand holding the paper tube 1 from getting too hot at this time. Cushioning sheet 9 The cushioning sheet 9 is for absorbing the expansion of the compound when the water reacts with the compound X when the water container 5 is punctured by the pin 6, and is made of cardboard sheets, nonwoven fabrics, Alternatively, an inorganic fiber sheet such as glass wool can be used. Corrugated cardboard sheets are preferred because they absorb moisture that has not reacted with compound X and prevent this water from exiting through the pin holes. However, when a corrugated cardboard sheet is used, it is desirable to provide a hole 9a or a cross-shaped cut for the pin 6 to be inserted into. When using a nonwoven fabric or an inorganic fiber sheet, holes 9a and cuts are not necessary. Support member 4 The support member 4 is for supporting the beverage can 2,
It is approximately cylindrical. Outside of the cylindrical one, Fig. 4 a, b
Alternatively, various shapes as shown in c can be used. Further, if the heat generating material container 3 is rigid, the supporting member 4 may be omitted since the heat generating material container 3 serves as a means for supporting the beverage can 2. As the support member 4, in addition to a paper tube, a paperboard processed into a predetermined shape can be used. In either case, the height is preferably such that the beverage can 2 touches the heat generating material container 3. Further, a gap may exist between the support member 4 and the heat generating material container 3, but this is not desirable because the heat generating material container 3 becomes unstable. Preferably, it is made of thick paper so as to be in close contact with both the heat generating material container 3 and the paper tube 1 and to absorb the expansion of the compound during heat generation. Note that the support member 4 may be made smaller than the heat generating material container 3, and the heat generating material container 3 may be pushed into the upper part of the supporting member 4 and fixed. At this time, the heat generating material container 3 does not come into contact with the cushioning sheet 9. Bottom Member 8 The bottom member 8 is made of a rigid metal lid such as an aluminum plate. This lid can be obtained by a conventionally well-known method, and is fixed and integrated with the end of the paper tube 1 by seaming. In addition, a hole 8 for pin insertion is provided in the center of the bottom member 8.
a, and this hole 8a is a plastic label A.
is blocked by. Pin 6 The pin 6 may be of any type as long as it can pierce the water container 5; for example, a pin as shown in FIG. 6 can be used. That is, the pin 6 has a sharp tip 61, and a grooved portion 62 at a certain distance from the tip 61,
Then there is a non-grooved portion 63, followed by a grooved portion 64, followed by a non-grooved portion 65, a tapering portion 66, a mating portion 67, and terminating in a grip portion 68. The tip 61 and the grooved portion 62 are such that when the pin 6 is inserted into the water container 5,
This is to allow water to immediately flow out of the container 5 through the grooves, and the portion 63 without grooves is to prevent water from reaching the user at this time. Also,
The grooved part 64 is so that when the pin 6 is pierced all the way to the base, water can run through the groove and come out on this side, and the grooved part 65 is to prevent water from reaching the hand at this time. The fitting part 67 is for attaching to a plastic cap 7, which will be described later, and for fitting into the hole 7a of the cap 7 or the hole 8a of the bottom member 8 when the cap is penetrated to the base, so that it does not come off. Plastic cap 7 A plastic cap 7 having a shape as shown in FIG. 7 can be used. 7a is a hole for inserting a pin, and before use, insert the plastic cap 7
A pin 6 is attached to the outer surface of. Pin 6 is
It can be attached to the cap 7 by sticking the tip 61 into the hole 71 and fitting the fitting part 67 into the notch 77, and when removing the pin 6, it is sufficient to pull the pin 6 upward. Note that the periphery of the inner surface, which is not shown in FIG. 7, can be fitted into the seamed portion of the paper tube 1 and the bottom member 8, as shown in FIG. Assembly Method The heating container of FIG. 1 can be assembled in the following manner. That is, the diameter of the upper part of the paper tube 1 is reduced by a method such as reverse flanging, internal curling, internal drawing, etc. in accordance with the shape of the upper part 21 of the beverage can 2. After this, the beverage can 2 is inserted. Next, the support member 4 and the heat generating material container 3 are inserted in an arbitrary order. It is convenient to insert the support member 4 first, but if the heat generating material container 3 is inserted and fixed onto the support member 4, it is preferable to insert both of them into the paper tube 1 as a unit. can. After inserting the cushioning sheet 9, the bottom member 8 is applied, and the paper tube 1 and the paper tube 1 are rolled up and fixed. Thereafter, the cap 7 fitted with the pin 6 is attached to obtain the heating container shown in FIG. 1. How to use: To use, remove the pin 6 from the cap 7 and push the pin 6 through the respective insertion holes 7a, 8a, and 9a to the base to destroy the water container 5 and remove the fitting part of the pin 6. 67 is fitted into the hole 7a of the cap 7 or the hole 8a of the bottom member 8 to prevent the pin 6 from coming out. In this state, water is discharged to the outside of the water container 5 through the grooves of the pin 6 (grooves 62 and 64 in the figure).
Reacts with compound X and generates heat. Beverage can 2 with heat intact
At the same time, the water vapor generated by the reaction between water and compound X is discharged from the exothermic material container 3 by the appropriate means as described above. It escapes upward from between the paper tube 1 and the beverage can 2. At this time, the water vapor is
heating from the surrounding area. Next, the embodiment shown in FIG. 8 will be explained. The embodiment of FIG. 8 is identical to the embodiment of FIG. 1 except that the pin 6' and plastic cap 7' are different.
As shown in FIG. 8, the plastic cap 7' is fitted into the seamed portion of the paper tube 1 and the bottom member 8, and is easy to attach and detach, and the pin 6' is installed inside it. Since the pin 6' needs to be pulled out after being pierced, it is preferable that the pin 6' has a circular cross section or the like. This container is used by removing the cap 7', taking out the pin 6', inserting the pin 6' into the piercing hole, pulling it out, and reattaching the cap 7'. (Test example) A container with a height of 50 mm and a flange with a width of 2 to 3 mm around the circumference was made by vacuum forming a polypropylene sheet with a thickness of 200μ, and the container was placed in the storage part 3 of the heat generating material container 3.
It was set to 1. The lid 32 is made of polyethylene film,
It is coated with a low-temperature sealing resin that softens and melts at 80℃. A similar polypropylene sheet was vacuum formed to form the main body 51 of the water container 5, and after being filled with water, a lid 52 made of polypropylene film was ultrasonically welded to form the water container 5. 100 g of quicklime was used as the compound X, and the water container 5 was sequentially stored in the storage part 31 so that it was located approximately in the center of the quicklime, and the lid 32 was ultrasonically welded to form the heat generating material container 3. On the other hand, a 190 cc coffee can with a shape as shown in Fig. 2 is prepared, and the upper part of the paper tube 1 is internally drawn to fit the shape of the upper part 21 to a shape of about 45 cc.
The diameter was reduced so that it tilted inward. The paper tube 1 has an inner surface made of high-density polyethylene film and an outer surface wrapped with several sheets of liner paper, and has a thickness of 1 mm or more. Further, a support member 4 was made of the same material as the paper tube 1 by cutting a 5 mm thick paper tube to a height of 50 mm. A coffee can 2, a support member 4, and a heat-generating material container 3 are sequentially stored in a paper tube 1, a cushioning sheet 9 with a cross cut cut in the center of a 7 mm thick corrugated sheet is inserted, and then a cushioning sheet 9 made of aluminum is inserted. Bottom member 8
was applied, and the paper tube 1 was wound and fixed together with the paper tube 1. Note that a hole 8a is provided in the center of the bottom member 8, and a plastic label A is previously pasted onto the hole 8a using an adhesive that softens at 150 to 250°C. After this, the cap 7 shown in FIG. 7 to which the pin 6 shown in FIG. 6 was attached was placed over the bottom material 8 and installed. The pin 6 was taken out from the cap 7, the pin 6 was pierced to the base using a predetermined method, and the pin 6 was left as it was. As time passes, a small amount of water vapor is generated between the coffee can 2 and the paper tube 1. When I held the paper tube 1 in my hand, I could barely feel the temperature increase, but after about 4 minutes, I opened the coffee can 2 and measured the temperature of the coffee, and found that it had risen 45 to 50 degrees Celsius above room temperature. I found out that there was. In addition, the coffee could be drunk as is (without taking it out of the paper tube). (Effects) As described above, according to the present invention, a general-purpose beverage can can be heated with a simple operation, and the beverage can and the heat-generating material will not be inadvertently separated. have an effect. In addition, the beverage can and the paper tube are placed apart from each other, and the water vapor generated by the reaction rises during this time and heats the beverage can from its surroundings, resulting in good heating efficiency. moreover,
Since the beverage can and the heat generating material container can be treated as independent parts, the assembly process is simple and can be manufactured industrially without any particular difficulty.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view of one embodiment of the present invention, FIGS. 2 to 7 are perspective views of various materials used in the embodiment of FIG. 1, and FIG. is a sectional view of another embodiment. 1... paper tube, 2... beverage can, 3... heat generating material container, 4... support member, 5... water container, 6...
Pin, 7... Plastic cap, 8... Bottom member, 9... Cushioning sheet, A... Label, X...
Compound.

Claims (1)

[Claims] 1 One end of the paper tube is sealed to form the bottom, and a heat-generating material container filled with a compound that generates heat by reacting with water and a water container is stored on the bottom, and the water is poured from outside the paper tube. A reaction means for destroying the container is provided, and on top of the container containing the compound and water,
A beverage can is installed with a gap between the side of the beverage can and the paper tube, the beverage can is supported on the heat generating material container by a support means, and the paper tube is placed around the upper part of the beverage can. A heating container made by reducing the diameter of.