JPH06174350A - Cooling element - Google Patents

Abstract

PURPOSE:To provide an easy and positive operation for mixing and contacting two agents to each other in a cooling element in which the two agents constituting cryogen are separately stored in a bag. CONSTITUTION:An inside part of a bag 3 is partitioned by a partition wall 10 into a first chamber 4 containing a first agent 1 and a second chamber 5 containing a second agent 2. The partition wall 10 is formed with a punched cutting part 11. An outer surface of the bag 3 is provided with a pair of gripper pieces 13 and 13. As the gripper pieces 13 and 13 are held by hands and pulled apart in an opposite direction from each other, the cutting part 11 is broken and then the two agents 1 and 2 are mixed from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling tool for generating cold heat by utilizing an endothermic reaction of a cryogen, and an improved packaging bag thereof.

[0002]

2. Description of the Related Art This type of cooling device uses ammonium nitrate and water as main freezing agents and takes a packaging form in which they can be mixed when necessary. For example, in the cooler disclosed in JP-A-1-319583, an inner bag in which water is sealed is sealed in an outer bag together with a chemical such as ammonium nitrate or urea. When using this, the outer bag is strongly hit from above and below to break the inner bag, and the water and the drug react. Temporarily seal the center of the envelope-shaped bag to separate the water storage room and the medicine storage room,
There is also a mode in which the partition by the temporary seal is removed at the time of use to mix the water and the medicine (Japanese Patent Laid-Open No. 2-120387).
There, water is stored in one chamber together with a water-supplying polymer in the state of crystalline Glauber's salt. However, the structure of the temporary seal part,
Details such as how to remove the temporary seal are unknown. There is also a type in which only a drug and a water-supplying polymer are enclosed in a bag formed of a water-permeable sheet, and the entire bag is soaked in water to start an endothermic reaction when necessary (JP-A-3-230072).

[0003]

Regarding the packaging of the cryogen as described above, there are two forms: a form in which water is enclosed in an inner bag, a form in which crystal Glauber's salt crystals and a drug are separately stored, and a form in which only the drug is packaged. is there. Both have advantages and disadvantages. In the form in which water is sealed in the inner bag, the endothermic reaction is immediately started just by breaking the inner bag, but the inner bag is sealed in the outer bag together with the drug, so that the inner bag is hard to break. This is because to break the inner bag, the inner bag must be pressed and ruptured via the outer bag and the drug layer, and it is difficult for the external force to be effectively transmitted to the inner bag. On the other hand, the inner bag will rupture if subjected to a large amount of pressure, so be careful when handling it during transportation or storage.

The form in which only the drug is packaged in a bag does not have the inconvenience of handling at the start of use or transportation as described above.
However, there are disadvantages such as the need to prepare water at the time of use and the need to seal the medicine package in another packaging bag in order to prevent alteration of the drug due to deliquescent because a water-permeable bag is used. Absent.

In this respect, according to the embodiment in which water is separately stored in the form of crystalline Glauber's salt together with the drug, the disadvantages of the former two can be solved.
However, this packaging form has a problem in the operation of separating the temporary seal portion. In order to perform this separation operation, it is conceivable that the flat bag front surface and the bag back surface must be picked up to separate the temporary sealing portion, but it is not easy to pick up the bag surface that is swollen with a drug or the like. .

The object of the present invention is to improve the structure of the packaging bag so that the cryogen can be stored in a separated state when it is not in use, but when it is necessary, it can be operated with a very simple operation and with certainty. It is to obtain a cooling tool that can break the partition wall.

[0007]

A cooling tool according to the present invention comprises an agent A containing at least a solid inorganic ammonium salt, an agent B containing at least crystalline Glauber's salt, and agents A and B.
Bag made of plastic sheet to accommodate the separated parts
It has and. The bag 3 includes an A chamber 4 that stores the A agent 1, and a B chamber.
It has the B chamber 5 which accommodates the agent 2. The A chamber 4 and the B chamber 5 are adjacent to each other via the partition wall 10. The partition wall 10 has a cut portion 11 that promotes fracture. On the outer surface of the bag 3, there are provided a pair of knobs 13 for pulling the partition wall 10 in opposite directions with the cut portion 11 as a boundary.

Specifically, as shown in FIGS. 1 and 2, an intermediate wall 6 having a cut portion 11 formed in the middle thereof, and one end of the intermediate wall 6 is folded back to the front side beyond the cut portion 11. The front wall 7 is provided, and the back wall 8 is folded back from the other end of the intermediate wall 6 over the cut portion 11 to the back side. The front wall 7 and the back wall 8 are respectively welded to the front surface and the back surface of the intermediate wall 6 with the folded-back end portions thereof sandwiching the split portion 11 on the left and right sides, respectively. To form both welded parts 9a and 9
A partition wall 10 is formed by a part of the intermediate wall 6 between b. Front wall 7
Further, it is assumed that the gripping pieces 13 and 13 are continuously extended to the outer surface of the bag continuously with the both welded portions 9a and 9b of the back wall 8.

Alternatively, as shown in FIG. 6, the cut portion 1 is formed in the middle portion.
1 and the front wall 7 which is folded back from one end of the middle wall 6 to the front side beyond the cut portion 11 and the folded back end is welded to the surface of the middle wall 6. And a back wall 8 whose one end is welded to the free end of the intermediate wall 6 and whose other end is welded to the back surface of the intermediate wall 6 between the folded back base end of the front wall 7 and the cut portion 11. Have. The A chamber 4 and the B chamber 5 formed by the front wall 7 and the intermediate wall 6 and the back wall 8 and the intermediate wall 6 are separated from each other by the welding portion 9a of the front wall 7 and the back wall 8 that sandwich the cut portion 11 on the left and right. They are adjacent to each other via a partition wall 10 between the welded portion 9b. Front wall 7
Further, it is assumed that the gripping pieces 13 and 13 are continuously extended to the outer surface of the bag continuously with the both welded portions 9a and 9b of the back wall 8.

Alternatively, as shown in FIG. 7, one of the tubular sheets flatly crushed is used as the front wall 7 and the other is the back wall 8, and the A chamber 4 and the B chamber are provided between the facing surfaces of the front wall 7 and the back wall 8. A partition wall 10 for partitioning 5 is arranged, and the tabs 13 and 13 arranged on the outer surfaces of the front wall 7 and the back wall 8 and the partition wall 10 are welded to the front wall 7 and the back wall 8 respectively, A cut 11 is formed in the wall 10.

[0011]

In the packaged state, the cryogens separately stored in the A chamber 4 and the B chamber 5 are adjacent to each other through the partition wall 10. At the time of use, a pair of knob pieces 13 and 13 provided on the outer surface of the bag 3
Are pulled in opposite directions to break the partition wall 10 along the cut portion 11. A room 4 and B room 5 are divided walls 1
Since they are separated via 0, the partition wall 10 does not break even if a large pressing force acts on the bag 3. Partition wall 10
This is because a force of the same magnitude acts on both sides of the partition wall 10, and even if a compressive force is applied, a force that pulls the partition wall 10 in the opposite direction does not act.

[0012]

According to the present invention, the compartment A and the compartment B 5 are separated by the partition wall 10 made of the sheet wall in order to store the cryogen separately. Then, the partition wall 10 is provided with a cut portion 11 that promotes breakage, and the cut wall portion 11 serves as a boundary.
Only when 0 is pulled in the opposite direction, the partition wall 1 can be easily
0 can be broken. Further, a knob piece 13 for pulling the partition wall 10 in the opposite direction on the outer surface of the bag 3
13 is provided to facilitate the breaking operation of the partition wall 10. Therefore, when not in use, the cryogen can be securely separated and stored,
When necessary, by simply pulling the tabs 13 on the outer surface of the bag 3, the partition wall 10 can be easily and surely ruptured to start the endothermic reaction. The operation for mixing can be facilitated. The inconvenience of handling during transportation and storage can be eliminated.

[0013]

【Example】

(First Embodiment) FIGS. 1 to 5 show a first embodiment of the present invention. In FIG. 1, the cooling tool constitutes a cryogen.
It is composed of agent 1 and agent B 2, and a bag 3 that accommodates them separately. Agent A 1 is obtained by adding a viscous agent (tragacanth gum) to two kinds of inorganic ammonium salts and finely granulating them. As the inorganic ammonium salt, ammonium nitrate, ammonium chloride, sodium nitrate, potassium nitrate and the like can be used. Agent B 2 is a mixture of crystalline Glauber's salt (sodium sulfate + hydrate) and a water-absorbing polymer.

The bag 3 is made of a plastic sheet and has an A chamber 4 for storing the A agent 1 and a B chamber 5 for storing the B agent 2. In FIG. 2, the room A 4 is
The intermediate wall 6 and the front wall 7 that is folded back from the left end of the intermediate wall 6 to the front side and that is folded back to the front end is welded to the surface of the intermediate wall 6. The B chamber 5 is partitioned by an intermediate wall 6 and a back wall 8 that is folded back from the right end of the intermediate wall 6 to the back side and the folded back end portion is welded to the back surface of the intermediate wall 6.

The front wall 7 and the back wall 8 are welded to the intermediate wall 6 in a state of being displaced in the lateral direction. These welded parts are designated by reference numerals 9a and 9
Indicated by b. By shifting the welded portions 9a and 9b to the left and right, the A chamber 4 and the B chamber 5 are laterally adjacent to each other with the sheet wall between the welded portions as a partition wall 10. The front and rear edges of the front wall 7, the intermediate wall 6, and the back wall 8 are also welded as shown in FIG.
These welded portions are indicated by reference numerals 9c and 9d.

When the partition wall 10 is broken, the A agent 1 and the B agent 2 come into contact with each other to start an endothermic reaction. This partition wall 10
In order to facilitate the rupture of the bag 3, a linear cut portion 11 is formed in the center of the partition wall 10 over the front-rear width, and a tab 13 is provided on the outer surface of the bag 3. As shown in FIG. 4, the tear portion 11 is a perforation having a group of grooves 12 which are intermittent, and the groove 12 is provided to form a dangerous cross-section portion, and tear force applied from the outside is applied to the tear portion. I try to focus on 11. The tab 13 is formed by utilizing a part of the front wall 7 and the back wall 8. As described above, the front wall 7 and the back wall 8 near the tips are welded to the intermediate wall 6, respectively, and the sheet end walls extending from the respective welded portions 9a and 9b to the outer surface of the bag are used as the tabs 13.

To fill the bag 3 with the A agent 1 and the B agent 2, after filling the A chamber 4 with the A agent 1, the front wall 7 is welded to the intermediate wall 6 as indicated by reference numeral 9a. Next, in B room 5, B
After filling the agent 2, the back wall 8 is welded to the intermediate wall 6 as indicated by reference numeral 9b. In either case, for example, the intermediate wall 6
It is possible to weld only the necessary parts by means such as printing with a seal removed on the inner surface of the. However, four welded parts 9a to 9d
Of these, for example, the other part may be welded while leaving the welded part 9d at the leading edge. In this case, since both the chambers A and B are open at the leading edge side, the agents A and B are Can be easily filled from the same direction.

At the time of use, a pair of front and back picking pieces 13 ・ 13
By grasping with a hand and pulling them upside down, the partition wall 10 can be broken along the cut portion 11 as shown in FIG. Due to this breakage, the A agent 1 and the B agent 2 start a reaction to generate cold heat. When the bag 3 is peeled off from the outside after breaking, the agent A and the agent B are well mixed.

(Second Embodiment) FIG. 6 shows a second embodiment of the present invention, in which the first sheet 15 forms the intermediate wall 6 and the front wall 7, and the second sheet 16 forms the back wall 8. To form. In detail, a cut portion 11 is formed in substantially the center of the intermediate wall 6, the front wall 7 is folded back to the front side beyond the cut portion 11, and the tip end thereof is welded to the surface of the intermediate wall 6. . Further, the right end of the back wall 8 is welded to the back end of the free end of the intermediate wall 6, and the left end of the back wall 8 is welded to the back surface of the intermediate wall 6 to the left of the cut portion 11. As a result, similar to the first embodiment, the A chamber 4 and the B chamber 5 are adjacent to each other through the partition wall 10, and the bag 3 having the pair of tabs 13 on the outer surface of the bag can be formed.

In the case of this bag 3, the left end of the back wall 8 is welded to the intermediate wall 6 along the welded portion 9b in advance, and the A chamber 4 is filled with the agent A, and then the front wall 7 is transferred to the intermediate wall. 6 is welded along the welded portion 9a. Next, the B agent 5 is filled in the B chamber 5, and then the right end of the back wall 8 is welded to the right end of the intermediate wall 6. This welded portion is indicated by reference numeral 9e. In this way, if the openings of the A chamber 4 and the B chamber 5 are aligned in the same direction, the cryogen can be easily filled.

(Third Embodiment) FIG. 7 shows a third embodiment of the present invention in which the bag 3 is formed by using a tubular sheet as a raw material. In this case, a tubular sheet is flatly bent, one of which serves as a front wall 7 and the other serves as a back wall 8. Then, the centers of the front wall 7 and the back wall 8 are each provided in the shape of two folds toward the outer surface, and the bending portions 17 are provided. This refraction part 17
The strip-shaped partition wall 10 is sandwiched between 17 and both ends of the partition wall 10 are welded to the bending portion 17. A cut portion 11 is formed in advance on the partition wall 10. The lower edges of the front wall 7 and the back wall 8 are welded to each other, and the A chamber 4 and the B chamber 5 are respectively filled with the A agent 1 and the B agent 2 from above, and then the front wall 7 By welding the upper edges of the back wall 8 together, the cooling tool is completed. In this case, the bending portion 17 is picked up by the strip 13
Available as Instead of using a cylindrical sheet in the third embodiment, a bag 3 similar to the above may be formed by a pair of sheets V-shaped and the partition wall 10. It is also possible to omit the refraction portion 17 and weld the partition wall 10 to the inner surface of the tubular sheet, and simultaneously weld the pair of tabs 13 to the outer surface of the welded portion.

(Fourth Embodiment) FIG. 8 shows a fourth embodiment of the present invention, in which a groove 12 having a V-shaped cross section is formed into a continuous line to form a cut portion 11. (Fifth Embodiment) FIG. 9 shows a fifth embodiment of the present invention in which a perforated cut portion 11 is formed by a group of intermittent grooves 12 and one of the groove openings is formed into a partition wall. It was closed with the sealing material 18 attached to 10. As the sealing material 18,
An adhesive tape having a sufficiently small tear strength can be applied as compared with a plastic sheet that is a forming material of the partition wall 10.

(Other Embodiments) The cut portion 11 need not be formed in a straight line shape, but can be formed in a continuous wave shape or a rack tooth shape. The cut portion 11 may be partially formed only at the center of the partition wall 10 or at a position deviated to the front or rear. The tab 13 does not have to be formed in the same length as the welded portions 9a and 9b, and may be provided, for example, only near the center of the welded portions. A bag piece 3 that is different from the front wall 7 and back wall 8
The knob 13 may be adhered to or welded to.

[Brief description of drawings]

FIG. 1 is a perspective view of a cooling tool, a part of which is cut away.

FIG. 2 is a vertical sectional front view of a cooling tool.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a perspective view showing a structure of a cut portion.

FIG. 5 is a vertical cross-sectional front view of an essential part showing a state in which a partition wall is broken.

FIG. 6 is a vertical sectional front view showing a second embodiment of the present invention.

FIG. 7 is a perspective view showing a third embodiment of the present invention.

FIG. 8 is a perspective view showing a fourth embodiment of the present invention.

FIG. 9 is a perspective view showing a fifth embodiment of the present invention.

[Explanation of symbols]

 1 A agent 2 B agent 3 bag 4 A room 5 B room 6 Middle wall 7 Front wall 8 Back wall 9a / 9b Welded part 10 Divided wall 11 Cut part 13 Pieces

Claims (4)

[Claims] 1. An agent A containing at least a solid inorganic ammonium salt, and an agent B containing at least crystalline Glauber's salt,
A cooling tool comprising a plastic sheet bag (3) for accommodating A agent (1) and B agent (2) separately, wherein bag (3) accommodates A chamber (4) for accommodating A agent (1) and B agent (2). Do B
The chamber 5 and the chamber A and the chamber B 5 are adjacent to each other with the partition wall 10 interposed therebetween. The partition wall 10 is formed with a rupture portion 11 that promotes rupture. A cooling tool in which a pair of tabs 13, 13 for pulling the partition wall 10 in opposite directions at the boundary are provided on the outer surface of the bag 3. 2. An intermediate wall 6 having a cut portion 11 formed in the middle thereof, a front wall 7 that is folded back from one end of the intermediate wall 6 over the cut portion 11 to the front side, and the intermediate wall 6 Cut from the other end 1
1 and the back wall 8 that is folded back to the back side, and the front wall 7 and the back wall 8 each have a folded tip end portion that sandwiches the cut portion 11 on the left and right sides. A chamber 4 and a B chamber 5 are formed by being welded to the front surface and the back surface of the partition wall 1 and the partition wall 1 is formed by a part of the intermediate wall 6 between the welded portions 9a and 9b.
The cooling tool according to claim 1, wherein 0 is formed, and the gripping pieces 13 and 13 are continuously extended to the outer surface of the bag continuously with the welded portions 9a and 9b of the front wall 7 and the back wall 8. 3. The intermediate wall 6 having a cut portion 11 formed at a midway portion, and the intermediate wall 6 is folded back from the one end of the intermediate wall 6 over the cut portion 11 to the front side, and a portion near the folded tip is intermediate. The front wall 7 welded to the surface of the wall 6, and one end welded to the free end of the intermediate wall 6 and the other end is an intermediate wall between the folded back base end of the front wall 7 and the cut portion 11. 6 has a back wall 8 welded to the back surface of 6, and the A chamber 4 and the B chamber 5 formed by the front wall 7 and the intermediate wall 6 and the back wall 8 and the intermediate wall 6 have They are adjacent to each other via a partition wall 10 between the welded portion 9a of the front wall 7 and the welded portion 9b of the back wall 8 which are sandwiched between the left and right sides, and are continuous to the both welded portions 9a and 9b of the front wall 7 and the back wall 8. The picking pieces 13, 13 are continuously extended to the outer surface of the bag.
The described cooling tool. 4. A section for partitioning the A chamber 4 and the B chamber 5 between the facing surfaces of the front wall 7 and the back wall 8 with one of the flatly crushed cylindrical sheets as a front wall 7 and the other as a back wall 8. The wall 10 is arranged, and the tabs 13 and 13 arranged on the outer surfaces of the front wall 7 and the back wall 8 and the partition wall 10 are welded to the front wall 7 and the back wall 8, respectively. The cooling tool according to claim 1, wherein a cut portion 11 is formed on the wall 10.