Damage detection type soft ice pack

Abstract

To provide a damage detection type soft ice insulator which enhances the pressure resistance of the soft ice insulator without using a load receiving material and makes it easy to find the occurrence of damage. [Solution] A storage bag 1 (inner bag 1) for soft ice pack A is stored in a larger outer bag 3 to form a double structure, and the space between the outer bag 3 and the inner bag 1 is sealed by creating a negative pressure state, so that even if even a small hole is made in the outer bag 3, air gets in between the inner bag 1 and the outer bag 3, loosening the outer bag 3, making it easy to find any damage that has occurred.

Description

[Technical field]

[0001] This invention relates to soft ice packs that contain a fluid ice pack in a storage bag such as vinyl, and in particular, it is a damage detection type that makes it easy to detect damage to the bag. [Background technology]

[0002] Conventionally, there are soft ice packs that contain a fluid ice pack in a storage bag made of vinyl, etc. However, such soft ice packs have the problem that the storage bag can be torn if it is accidentally stepped on, so for example, the soft ice pack described in Patent Document 1 stores a load-bearing material made of a round resin pipe together with the ice pack to increase pressure resistance.

[0003] [Patent Document 1] Utility Model Registration No. 3247090 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional soft ice packs mentioned above have the drawback of being expensive to store in the load-bearing material, and while they are effective when stepped on, they are not very effective in preventing other damage. In other words, there are various situations in which soft ice packs are used. For example, when used to keep seafood cool, small holes can be created by crab claws or shellfish spines, and because these holes are difficult to find, the ice packs end up leaking out. [Means for solving the problem]

[0005] This invention solves the problem by increasing the pressure resistance of soft ice packs without using load-bearing materials, by encasing the storage bag in a larger outer bag to create a double structure, and by creating a negative pressure state between this outer bag and the inner storage bag and sealing them.

[0006] Preferably, the outer bag has a pair of surfaces large enough to enclose the storage bag in a plan view, and at least a part of the periphery of the pair of surfaces is bonded to each other to form a seal band, with a predetermined gap provided between the seal band and the outer periphery of the storage bag. Effect of the Invention

[0007] In the above configuration, first, a storage bag containing a fluid ice pack is further stored in an outer bag, creating a double structure, which makes it possible to increase the pressure resistance of the soft ice pack to a certain extent without using a load-bearing material. In addition, by creating a negative pressure between the inner storage bag and the outer bag and sealing them, the two are tightly sealed together. Therefore, even if there is even a small hole in the outer bag, air will get in between the storage bag and the outer bag, loosening it, making it easy to find the damage that has occurred.

[0008] In particular, by forming a sealing band by bonding at least a portion of a pair of surfaces of the outer bag and providing a predetermined gap between this sealing band and the outer edge of the storage bag, the surfaces of the outer bag will be in close contact with each other at this portion. Therefore, if air enters through a hole in the outer bag, the surfaces of the outer bag that were previously in close contact will peel away, making it even easier to detect damage. [Brief description of the drawings]

[0009] [Figure 1] This is a diagram showing a plan view of an example of the damage detection type soft ice pack of this invention. [Diagram 2] This is a diagram equivalent to Figure 1 showing a modified example in which two storage bags are stored in one outer bag. [Diagram 3] This is a cross-sectional view of line III-III in Figure 1, showing the internal structure of the soft ice pack. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The present invention is a damage detection type soft ice pack in which a storage bag of soft ice pack is stored in a larger outer bag and sealed under negative pressure. Preferably, the outer bag has a pair of surfaces large enough to contain the storage bag in a plan view, at least a part of the outer periphery of the outer bag is bonded to each other to form a seal band, and a predetermined gap is provided between the outer periphery of the storage bag. EXAMPLES

[0011] The following describes the embodiment with reference to the attached drawings. As shown in Figures 1 and 3, the soft ice pack A in the embodiment is made by storing a fluid ice pack 4 in a resin storage bag 1, sealing it, and then storing the storage bag 1 in a larger outer bag 3 and sealing it under negative pressure. In this example, both the storage bag 1 (hereafter referred to as the inner bag 1) and the outer bag 3 are rectangular in shape with their long sides in the left-right direction of the figure, and are made by stacking two transparent rectangular sheets made of thermoplastic resin, for example, and bonding them together around their outer peripheries.

[0012] More specifically, as shown in FIG. 1, in a plan view, the outer bag 3 has a pair of surfaces 3a large enough to encompass the inner bag 1, and these surfaces 3a are bonded together at their outer periphery by heat welding or the like to form a sealed band 2 of a specified width that surrounds the inner bag 1. In this example, the sealing band 2 on the outer periphery of the outer bag 3 is formed around the entire periphery between it and the outer edge of the inner bag 1 with a predetermined gap (preferably 5 to 10 mm).

[0013] Although not shown in the figure, in the process of manufacturing soft ice pack A, for example, two rectangular sheets are stacked together with a commercially available soft ice pack sandwiched between them, the outer periphery is glued along three sides, and then the air inside is sucked out through an opening on the remaining side. After creating a negative pressure inside, the outer periphery of outer bag 3 is glued along the last remaining edge, and the inside is sealed under negative pressure.

[0014] By creating a negative pressure state between inner bag 1 and outer bag 3 in this way, the surface of inner bag 1 and the back of outer bag 3 will come into close contact, as shown in Figure 3. For this reason, when soft ice pack A is used to keep seafood cool, for example, even if a small hole is made in outer bag 3 by a crab's claws or a shellfish's spine, air will enter through this hole, loosening outer bag 3 and forming a large air pocket between inner bag 1 and the bag, making it easy to find the damage that has occurred.

[0015] In particular, in this example, as shown in Figure 1, a certain gap is provided between the seal band 2 of the outer bag 3 and the outer periphery of the inner bag 1, and here, a pair of surface portions 3a of the outer bag 3 are in close contact with each other, as shown in Figure 3. For this reason, air can get in through the small holes as described above, loosening the outer bag 3 and causing the closely-contacted surface portions 3a to peel away from each other, making it easier to find damage.

[0016] Therefore, in this embodiment of the soft ice pack A, first, an inner bag 1 containing a fluid ice pack 4 is placed inside a larger outer bag 3, creating a double structure, which makes it possible to increase pressure resistance to a certain extent without using a load-bearing material.

[0017] In addition, as mentioned above, the inner bag 1 is stored in the outer bag 3 under negative pressure and is tightly attached, so even if even a small hole is made in the outer bag 3, air will get in between the inner bag 1 and the outer bag, making the damage easily noticeable.

[0018] On the other hand, if soft ice pack A is stepped on and inner bag 1 is torn, ice pack 4 is pushed out from the tear and spreads between outer bag 3, but it is possible to prevent ice pack 4 from immediately leaking out of outer bag 3.

[0019] In addition, the ice pack leaking out from the tear in the inner bag 1 spreads between the inner bag 1 and the outer bag 3, making it easy to spot the tear in the inner bag 1 and distinguish it from the damage to the outer bag 3. From this point of view, it can be said that it is preferable for the ice pack 4 to be colored.

[0020] The soft ice pack A in this embodiment is considered to have slightly inferior pressure resistance compared to the conventional example in which a load-bearing material is stored, but as described above, any damage that occurs can be easily detected. Therefore, by ceasing use depending on the degree of damage, actual damage such as leakage of ice packs is unlikely to occur.

[0021] In the soft ice pack A of the above-mentioned embodiment, a predetermined gap is provided between the sealing band 2 of the outer bag 3 and the outer peripheral edge of the inner bag 1, but this is not limiting. Also, two rectangular sheets are stacked together and glued together at the periphery to form the outer bag 3, but this is not limited to this. For example, the outer bag 3 may be a bag-shaped bag with only one side open, and the inner bag 1 may be placed inside it, and the open side may then be glued together.

[0022] Furthermore, as shown in an example in Figure 2, two inner bags 1 may be stored in one outer bag 3, and in this case, it is preferable to form a sealing band 2 by bonding the surfaces 3a of the outer bag 3 together not only at the outer periphery of the outer bag 3 but also at the intermediate position between the two inner bags 1.

[0023] Furthermore, the shapes of the inner bag 1 and the outer bag 3 are not limited to being rectangular, and instead of a double structure of the inner bag 1 and the outer bag 3, they may be stored in another outer bag (not shown) to form a triple structure. [Explanation of symbols]

[0024] A Soft ice pack, 1 Storage bag (inner bag), 2 Seal strip (glued part), 3 Outer bag, 3a Surface of outer bag, 4 Fluid ice pack

Claims

1. A damage detection type soft ice pack in which the storage bag for the soft ice pack is placed inside a larger outer bag and sealed under negative pressure.

2. the outer bag has a pair of surfaces that are large enough to encompass the storage bag in a plan view, and at least a portion of the outer periphery of the pair of surfaces is bonded to each other to form a seal band; 2. The damage detection type soft ice pack according to claim 1, wherein a predetermined gap is provided between the sealing band and an outer periphery of the storage bag.

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