JP2021195147A - Foldable cool bag - Google Patents

Abstract

To provide a cool bag which enables easy folding and improvement of cold insulation effect.SOLUTION: A foldable cool bag of the invention includes: a bag body having a bottom surface part 24 and a side surface part 25; a lid body attached to the bag body; a bottom surface heat insulation part 26 provided at the bag body; and a side surface heat insulation part 28. The side surface heat insulation part has a folded part 41 in an end part at the bottom surface heat insulation part side. The folded part is provided so as to cover at least a part of the bottom surface heat insulation part when the cool bag is used.SELECTED DRAWING: Figure 3

Description

The present invention relates to a foldable cold storage bag mainly used outdoors such as fishing and hiking.

Conventionally, various foldable cold storage containers have been known. As such a cold insulation container, for example, a structure is known in which a heat insulating material is provided inside the container and the heat insulating material on the side surface and the bottom surface can be folded when the container is folded.

Such a cold storage container is disclosed in, for example, Patent Document 1. In Patent Document 1, an outer shell wall is formed by a flexible bag body to form a substantially rectangular parallelepiped container, and the container can open and close the lid and the main body, and inside the bag of each outer shell wall of the container. Disclosed is a foldable cold storage container in which a rigid plate-shaped heat insulating material is inserted and a part of the heat insulating material can be taken out from the bag body.

Jikkai Sho 59-141072

However, in the aspect according to Patent Document 1, it is necessary to remove the heat insulating material on each surface in the bag when folding the cold insulation container, and it is not always possible to easily fold the cold insulation container, and there is a gap between the heat insulating materials on each surface. Due to the structure that can be created, there is a problem that the cold insulation effect is significantly reduced.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the cold insulation effect while making it possible to easily fold the cold insulation bag. Other objects of the invention will become apparent by reference to the entire specification.

The foldable cold storage bag according to the embodiment of the present invention includes a bag body having a bottom surface portion and a side surface portion, a lid body attached to the bag body, a bottom surface heat insulating portion provided on the bag body, and side insulation. The side heat insulating portion has a folded portion at an end on the bottom heat insulating portion side, and the folded portion covers at least a part of the bottom heat insulating portion when the cold insulation bag is used. It is configured to be provided.

In the foldable cold storage bag according to the embodiment of the present invention, the folded portion is configured to cover the end portion of the bottom surface heat insulating portion.

In the foldable cold storage bag according to the embodiment of the present invention, the length of the folded portion is configured to be in the range of 5 mm to 170 mm.

In the foldable cold storage bag according to the embodiment of the present invention, the folded portion is formed on the entire circumference of the side heat insulating portion.

In the foldable cold storage bag according to the embodiment of the present invention, the folded portion is the boundary between the second side heat insulating portion adjacent to the first side heat insulating portion of the side heat insulating portion and the third side heat insulating portion. Notched in the area.

In the foldable cold storage bag according to the embodiment of the present invention, the folded portion is provided so as to cover a surface area in the range of 5% to 100% of the surface area of the bottom surface insulating portion.

In the foldable cold storage bag according to the embodiment of the present invention, the folded portion is provided so as to cover the bottom heat insulating portion.

According to the above embodiment, it is possible to improve the cold insulation effect by making it possible to easily fold the cold insulation bag and surely reducing the outflow of cold air from between the heat insulating portions on each surface.

It is a figure which shows the foldable cold insulation bag which concerns on one Embodiment of this invention. It is a figure which shows the foldable cold insulation bag which concerns on one Embodiment of this invention. It is a figure explaining the heat insulation part of the foldable cold insulation bag which concerns on one Embodiment of this invention. It is a figure explaining the heat insulation part of the foldable cold insulation bag which concerns on one Embodiment of this invention. It is a figure explaining the heat insulation part of the foldable cold insulation bag which concerns on one Embodiment of this invention. It is a figure explaining the folding of the foldable cold storage bag which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the cold storage bag according to the present invention will be specifically described with reference to the accompanying drawings. Structures common to a plurality of drawings are designated by the same reference numeral throughout the plurality of drawings. It should be noted that each drawing is not always drawn to the correct scale for convenience of explanation.

An embodiment of a foldable cold storage bag according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in the figure, in the foldable cold storage bag according to the embodiment of the present invention, a waterproof cloth coated with PVC, PU, EVA on nylon or polyester woven cloth is arranged on the outside, and synthetic resin foam such as PE or styrene is foamed. It has a waterproof bag body 23 with a material inside and nylon or polyester cloth arranged inside (or the waterproof cloth surface is used upside down), and is formed in a box shape with a bottom surface and side surfaces inside. Is used as a storage section, and a storage port is open at the top. As will be described later, heat insulating portions containing a heat insulating material are provided on each surface of the inner surface of the bag body 23 as a side heat insulating portion and a bottom heat insulating portion. It should be noted that various modes can be considered for attaching the heat insulating material to each surface of the bag body 23, and the mounting is not limited to a specific mode.

A fastener portion that covers the outer periphery of the bottom surface of the bag body 23 extends along the outer periphery, and the bottom surface of the bag body 23 is a hinge member made of a synthetic resin sheet (for example, nylon, polyester woven fabric, etc.) (not shown). ), And can be rotatably opened and closed around the hinge member with respect to the bottom bag body 23. When the cold storage bag 1 is folded, the bottom surface is on the outer surface side of the bag body 23. It is configured so that it can be placed adjacent to the part. Further, the lid 27, which will be described later, is similarly configured so that when the cold storage bag 1 is folded, it can be arranged adjacent to the side portion of the outer surface of the bag body 23. Further, the bag body 23 is made of a soft material so that it can be folded including the heat insulating portion.

A lid 27 made of the same material as the bag body 23 is connected to one side of the storage opening (the back side side surface 35 described later) via a hinge member (not shown) made of a synthetic resin sheet. On the peripheral edge of the lid 27, a fastener portion 29 that covers the upper outer periphery of the bag body 23 when the lid 27 is put on the storage opening (when the storage opening is closed by the lid 27) is provided along the outer periphery. It has been extended. Here, on the inner surface of the lid 27, a heat insulating portion containing a heat insulating material is provided as an upper surface heat insulating portion. Various modes can be considered for attaching the heat insulating material to the lid 27, and the mounting is not limited to a specific mode.

Here, the cold storage bag 1 may be provided with a hand-held handle 33 having a pair of both ends attached to the bag main body 23. The hand-held handle 33 is attached to, for example, the upper outer periphery of the front side side surface 31 and the back side side surface 35 of the bag body 23, but is not limited to this, as shown in FIGS. 1 and 2. Further, the hand-held handle 33 is configured as a pair of U-shaped handles 37, 39 in the illustrated example. In addition, both U-shaped handles 37 and 39 of the hand-held handle 33 have a central portion, for example, a loop-shaped handle matching grip 47 to which hook-and-loop fasteners 43 and 45 are sewn when carrying the cold storage bag 1 by hand. It may be possible to bundle them into one.

Further, the cold storage bag 1 may be provided with a shoulder belt (shoulder belt) 53 having both ends attached to the bag main body 23. In that case, as shown in FIGS. 1 and 2, the shoulder belt 53 is, for example, one made of woven cloth or synthetic resin (molded product), cloth, leather, etc. between the left and right side surfaces 49 and 51 of the bag body 23. The thin band-shaped shoulder belt 53 can be formed so as to be bridged over, and both end portions 54 of the shoulder belt 53 can be fixed to the left and right side surfaces 49, 51 by sewing.

In the cold storage bag 1, the shoulder belt 53 has a length in which the central portion in the longitudinal direction touches the ground when the cold storage bag 1 is placed on the ground and hung downward. A plate-shaped shoulder rest 55 having a dimension (length L) of approximately 1/3 of the total length of the shoulder belt 53 is attached to the central portion of the 53. Further details will be omitted.

Next, with reference to FIGS. 2 and 3, the foldable cold storage bag 1 according to the embodiment of the present invention will be described in more detail. As shown in FIGS. 2 and 3, the foldable cold storage bag 1 according to the embodiment of the present invention includes a bag body 23 having a bottom surface portion 24 and a side surface portion 25, and a lid 27 attached to the bag body 23. In order to increase the contact area between the side heat insulating portion 28 and the bottom heat insulating portion 26 when the cold insulation bag is used, the bottom heat insulating portion 26 and the side heat insulating portion 28 provided on the bag main body 23 are provided. It is configured to include a folded portion 41 extending from the side heat insulating portion 28. Here, the folded-back portion 41 shown in FIG. 3 is formed in a substantially plate shape together with the side heat insulating portion 28, and the folded-back portion 41 is appropriately bent so as to come into contact with the bottom surface heat insulating portion 26. This is because when the cold storage bag 1 is folded, the folded portion 41 can be made approximately parallel to the side heat insulating portion 28 so that the thickness of the folded cold storage bag does not increase unnecessarily. can do.

In this way, according to the foldable cold storage bag according to the embodiment of the present invention, by providing the folded portion, the cold storage bag can be easily folded, and from between the heat insulating portions on each surface. By surely reducing the outflow of cold air, it is possible to surely improve the cold insulation effect.

Here, the cold insulation effect of the cold insulation bag is determined from two factors: the thermal effect from the ground on which the cold insulation bag is placed and the leakage of cold air from the inside of the cold insulation bag (particularly the leakage of cold air from the vicinity of the bottom). Although it is known that the bottom insulation can be formed thicker to reduce the influence of the former, there is a limit due to restrictions on weight and dimensions, and for the latter, the bottom surface is individually molded. It has become clear that it is important to effectively prevent the leakage of cold air between the heat insulating part and the side heat insulating part, and the inventor of the present application has found a concrete measure for this. The side heat insulating portion 28 can be formed by forming one plate-shaped heat insulating portion, bending it, and appropriately connecting and adhering both end portions thereof.

Further, as shown in FIG. 3, in the foldable cold storage bag 1 according to the embodiment of the present invention, the folded portion 41 is provided so as to cover the end portion 34 of the bottom surface heat insulating portion 26. In this way, it is possible to prevent leakage of cold air from between the bottom heat insulating portion and the side heat insulating portion, and it is possible to enhance the cold insulation effect.

In the foldable cold storage bag 1 according to the embodiment of the present invention, the length of the folded portion 41 is in the range of 5 mm to 170 mm. In this way, it was found that it is possible to prevent leakage of cold air in the cold storage bag and thermal influence from the ground. As a result of the test, it was found that the residual ice rate after a certain period of time was improved by 7% or more.

Further, by setting the length of the folded portion 41 within such a range, when the cold storage bag 1 is folded, the size when folded can be made compact according to the size of the box, so that the folded portion 41 can be folded. It is possible to reduce the thickness of the cold storage bag in the folded state and the simplicity of the bag.

In the foldable cold storage bag 1 according to the embodiment of the present invention, the folded-back portion 41 is configured to be formed on the entire circumference of the side heat insulating portion 28. In this way, it is possible to prevent leakage of cold air from between the bottom heat insulating portion and the side heat insulating portion, and it is possible to further enhance the cold insulation effect.

Next, the foldable cold storage bag 1 according to the embodiment of the present invention will be described with reference to FIGS. 4a and 4b. As shown in FIGS. 4a and 4b, in the foldable cold storage bag 1 according to the embodiment of the present invention, the folded-back portion 41 is adjacent to, for example, the first side heat insulating portion 19 of the side heat insulating portion 28. It is cut out at the boundary region between the side heat insulating portion 20 of 2 and the third side heat insulating portion 21. This is similarly notched for the other side insulation, as shown in FIGS. 4a and 4b. In this way, the overlap of the folded portions is prevented, the leakage of cold air from between the bottom surface heat insulating portion and the side heat insulating portion can be prevented more effectively, and the cold insulation effect can be further enhanced.

In the foldable cold storage bag 1 according to the embodiment of the present invention, the folded-back portion 41 is provided so as to cover the bottom surface heat insulating portion 26. In this way, it is possible to further prevent the leakage of cold air in the cold storage bag and the thermal influence from the ground.

In the foldable cold storage bag according to the embodiment of the present invention, the folded portion 41 is provided so as to cover a surface area in the range of 5% to 100% of the surface area of the bottom surface insulating portion 26. In this way, it is possible to prevent leakage of cold air in the cold storage bag and thermal influence from the ground.

Next, FIG. 5 shows a folded state of the foldable cold storage bag 1 according to the embodiment of the present invention. As shown in the figure, each fastener 29 of the lid 27 and the bottom surface 24 is pulled to open the package. From that state, bend them alternately by 270 degrees, and stack them so that each surface is in contact with the outer surface of the opposite side surface. Next, the side surface portions 49 and 51 are recessed in the center in a dogleg shape. Next, it can be hung on the shoulder by holding it with a belt with a hook-and-loop fastener (not shown) inside the bottom surface portion 24 and taking out the shoulder belt 53 at that time. Here, it was found that by opening the lid 27 and the bottom surface portion 24 alternately, the lid body 27 and the bottom surface portion 24 can be turned so as to be in contact with each opposite side surface, and the folding can be made simpler and more compact.

As described above, when the cold storage bag 1 is folded, the folded portion 41 can make the folded portion 41 approximately parallel to the side heat insulating portion 28, whereby the thickness of the folded cold storage bag is unnecessary. Can be prevented from increasing.

In this way, according to the foldable cold storage bag according to the embodiment of the present invention, by providing the folded portion, the cold storage bag can be easily folded, and the heat insulating portion on each surface is described above. By surely reducing the outflow of cold air from between, it is possible to surely improve the cold insulation effect.

The dimensions, materials, and arrangement of each component described herein are not limited to those expressly described in the embodiments, and each component may be included in the scope of the present invention. Can be modified to have the dimensions, materials, and arrangement of. In addition, components not explicitly described in the present specification may be added to the described embodiments, or some of the components described in each embodiment may be omitted.

1 Foldable cold insulation bag 19 1st side heat insulating part 20 2nd side heat insulating part 21 3rd side heat insulating part 22 4th side heat insulating part 23 Bag body 24 Bottom part 25 Side part 26 Bottom heat insulating part 27 Lid 28 Side insulation 29 Fastener 31 Front side 33 Handheld handle 34 Bottom insulation end 35 Back side 37,39 U-shaped handle 41 Folded part 43, 45 Hook-and-loop fastener 47 Handle matching grip 53 Shoulder belt 54 Both ends Part 55 Shoulder rest

Claims (7)

A foldable cold storage bag including a bag body having a bottom surface portion and a side surface portion, a lid attached to the bag body, a bottom surface heat insulating portion provided on the bag body, and a side heat insulating portion.
The side heat insulating portion has a folded portion at an end on the bottom heat insulating portion side, and the folded portion is provided so as to cover at least a part of the bottom heat insulating portion when the cold insulation bag is used. A foldable ice pack. The cold storage bag according to claim 1, wherein the folded portion is provided so as to cover the end portion of the bottom surface heat insulating portion. The cold storage bag according to claim 1 or 2, wherein the length of the folded portion is in the range of 5 mm to 170 mm. The cold storage bag according to any one of claims 1 to 3, wherein the folded portion is formed on the entire circumference of the side heat insulating portion. The folded portion is cut out at the boundary region between the second side heat insulating portion adjacent to the first side heat insulating portion of the side heat insulating portion and the third side heat insulating portion, according to claims 1 to 4. The cold storage bag according to any one of the items. The cold insulation bag according to any one of claims 1 to 5, wherein the folded portion is provided so as to cover a surface area in the range of 5% to 100% of the surface area of the bottom surface insulating portion. The cold storage bag according to any one of claims 1 to 6, wherein the folded portion is provided so as to cover the bottom heat insulating portion.

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