JPH0151250B2 - - Google Patents

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a container that can be heated by a chemical reaction of the contents of a beverage or the like, and more particularly to a container that facilitates handling of compounds that cause this chemical reaction. (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, Special Publication No. 35-10470, Special Publication No. 7289-7289,
It is described in Utility Model Application Publication No. 61-89333. However, in all of these containers, a compound such as quicklime is directly filled into a heat-resistant rigid container such as a metal can. Substances that generate heat when they react with water, including quicklime, are generally dangerous.
Not only does it need to be handled with care, but if it absorbs water it will lose its function as a heat generating material.
This filling must be carried out in a factory with sufficient equipment. However, since there is no such equipment in factories that produce food and beverages,
−10470 is unrealistic and also
No. 7289 had to be manufactured separately, and in Utility Model Application No. 61-89333, it had to be filled with quicklime and sealed before being transported to a beverage factory. In addition, in Utility Model Application No. 61-89333, quicklime is not filled to the fullest opening of the metal can (if the opening is filled to the fullest, the expansion of the quicklime during the exothermic reaction cannot be absorbed and there is a risk of bursting. ), the top surface of the filled quicklime is not flat, which makes it difficult to handle. Special Publication No. 50-7289 cannot absorb the expansion of quicklime. (Problems to be Solved by the Invention) Therefore, an object of the present invention is to provide a container that makes it easy to handle compounds such as quicklime and can absorb expansion during reaction. (Means for Solving the Problems) In order to achieve this object, the present invention provides a heating container in which the contents and a heat-generating material are partitioned and stored and fixed in a paper tube, in which the heat-generating material reacts with water. The heat-generating material is stored and sealed in a heat-generating material container at least partially made of a plastic sheet or film that opens by heat and pressure, and then stored and fixed in a paper tube together with a cushioning material. To provide a heating container characterized by: (Function) In the present invention, the container containing the compound and water is stored in a heat-generating material container made of a plastic sheet or film and is therefore extremely easy to handle. During an exothermic reaction, the exothermic material container is destroyed by the heat and the expansion pressure of the compound, and the expansion is absorbed by the buffering material. (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, It consists of a cushioning sheet 9, a plastic cap 7, a label A, and a piercing pin 6 (not shown). The reaction means consists of a piercing pin 6, and holes made in each of the cap 7, the bottom member 8, and the cushioning sheet 9. (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 preferable 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, it is desirable that the upper part 21 of the beverage can 2 has a taper, and the upper part 21 of the paper tube 1
1 has been reduced in diameter. Thus, the exothermic 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 plastic 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 penetrate the water container 5 through the hole 9a to break it and cause the water and the compound to react and generate heat. Each material will be explained below. Paper tube 1 The paper tube 1 may be a normal one, but it is preferably one that has excellent heat resistance and heat insulation properties that can withstand temperatures of about 100°C. Paper tubes are relatively inexpensive and opaque, so
The internal heat generating material container 3 and the like cannot be seen, 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. Compound X includes granular or powdered quicklime,
Magnesium chloride etc. 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. As shown in FIGS. 3a and 3b, the heat generating material container 3 includes a storage section 31 and a lid 32 joined to the storage section 31.
Consists of. Note that FIG. 3a is a perspective view of the heat-generating material container 3 viewed diagonally from above, and FIG. 3b is a perspective view 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,
Both 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 thin wall portion 3a for piercing the pin 6 should be provided at the bottom of the storage portion 31. The lid 32 can be made of thin plastic film. In this case, the lid 32 melts and ruptures due to heat and pressure, allowing water vapor to escape. As can be seen from Figure 1, the water vapor that escaped is
Passes between the beverage can 2 and the paper tube 1, and the beverage can 2
It heats up the surrounding area 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 functions as a cushioning material,
When the pin 6 is pierced and the water container 5 is broken,
This material is for absorbing the expansion of the compound when water reacts with the compound X, and a cardboard sheet, a nonwoven fabric, or an inorganic fiber sheet such as glass wool can be conveniently 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 notch for piercing the pin 6. When a nonwoven fabric or an inorganic fiber sheet is used, 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. Furthermore, 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, although there may be a gap between the support member 4 and the heat generating material container 3, 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. At this time, the support member functions as a cushioning material. 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 support 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 consists 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 any pin as long as it can pierce the water container 5, and for example, the pin 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 inserted all the way to the base, water will be transmitted to 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 part 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 recommended to insert both of them into the paper tube 1 as a unit. Can be done. 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 When using, remove the pin 6 from the cap 7, insert the pin 6 into the base of each hole 7a, 8a, and 9a to break the water container 5, and remove the pin 6 from the cap 7. The fitting part 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 off. 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 described. 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. 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 cardboard sort 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, and the pin 6 was inserted into the base using a predetermined method, and the animal was left in its embrace. As time passed, a small amount of water vapor was generated between the coffee can 2 and the paper tube 1. Even when I held the paper tube 1 in my hand, I could barely feel the temperature rise. After 4 minutes, when the coffee can 2 was opened and the temperature of the coffee was measured, it was found that the temperature had risen by 45 to 50 degrees Celsius from room temperature. In addition, you can drink the coffee as it is (without taking it out of the paper tube).
No abnormalities were found anywhere, such as in the seamed portions of the paper tube and bottom member. (Effects) As described above, according to the present invention, it is possible to provide a container in which the exothermic material is not only easy to handle but also safe by absorbing expansion during reaction.

[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. A heating container consisting of a paper tube in which the contents and a heat-generating material are compartmentalized and fixed, the heating container consisting of a compound that generates heat when the heat-generating material reacts with water and a container containing water;
A heating container characterized in that the heat-generating material is housed and sealed in a heat-generating material container at least partially made of a plastic sheet or film that opens by heat and pressure, and is housed and fixed in a paper tube together with a cushioning material.