JP2001136887A - Cooling bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling bag excellent in stability when carrying the cooling bag, and capable of maintaining the shape over a long period. SOLUTION: This cooling bag having an insulation material 4 having cushioning properties at the outside of an inner case 3 made from a plastic at the upper face opening has a convex part 6 for engaging the insulation material 4 at the outer surface of the inner case 3 to prevent the position of the insulation material 4 from being moved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a cold storage bag, and more particularly, to a relationship between a plastic inner case generally called a hard inner and a heat insulating material provided outside the inner case.

[0002]

2. Description of the Related Art Generally, a cold storage box for fishing called a cooler box is carried and used for fishing. This cool box is, for example, as shown in FIG.
And the upper lid 51, and both the main body 50 and the upper lid 51 have a heat insulating structure. That is, in both cases, a heat insulating material is provided between the plastic outer case and the plastic inner case.

[0003] This cool box has a structure in which an outer case is further provided on the outside of the inner case with a heat insulating material interposed therebetween.
Even when a large number of caught fish are put in and carried, for example, by hanging the shoulder belt 52 on the shoulder, the shape does not easily change, a rigid feeling and a firm feeling can be obtained, and stability and shape maintaining characteristics are excellent. On the other hand, it is heavy because it is a structure that emphasizes strength, and because of the high rigidity of the outer case, it has a rugged feeling, it does not follow the body line, and it is not suitable for long-time carrying in conjunction with its weight .

[0004] In view of the portability, various types of cool bags that do not use an outer case have been proposed. In other words, by forming an exterior part that covers the outside of the heat insulating material from a flexible material such as a cloth or a synthetic resin sheet, a soft touch can be obtained compared to the outer case, and the heat insulation inside the case can be obtained. Due to the cushioning property of the material, there is an advantage that it is easy to follow the line of the body, and even if it abuts on the same place for a long time, the abutment portion is hardly painful. Moreover, the weight can be reduced as compared with the cool box. Furthermore, since the inner case is made of plastic like the cold box, it is safe and hard to damage even if fish with barbs is put in it.

[0005] As described above, this kind of cold storage bag has been frequently used because of the durability and lightness of the inner case, which is a storage part, and the convenience of carrying it.

[0006]

However, in the case of the conventional cold storage bag, since the outer surface of the plastic inner case is substantially smooth without any irregularities and has good slippage, it is necessary to attach a shoulder belt or a handbag. When a force acts on the portion, the heat insulating material may cause a relative displacement with respect to the inner case due to the force. This is due to the fact that a heat insulating material having a cushioning property such as urethane foam is used instead of a heat insulating material having no cushioning property such as a foam material. In addition, even in the part in contact with the body, there is a possibility that the displacement of the heat insulating material with respect to the inner case may occur due to vibration or shaking during carrying, and the cool keeping bag may become unstable when carrying due to this misalignment. Was.

[0007] Further, the positional deviation gradually increases due to repeated use, and there is a possibility that the shape of the cool insulation bag itself is destroyed. Therefore, there has been a demand for a cold storage bag that further improves these points while maintaining the above advantages of the cold storage bag.

[0008] Therefore, the present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide an insulated bag which has excellent stability when carried and can maintain its shape for a long period of time.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a cooling bag according to the present invention is provided outside a plastic inner case 3 having an upper surface opening.
In the cold insulation bag provided with the heat insulating material 4 having a cushioning property, the heat insulating material locking convex portion 6 is provided on the outer surface of the inner case 3 so as to suppress the displacement of the heat insulating material 4. I do.

In the cold insulation bag, the heat insulating material 4 is pressed and deformed by the heat insulating material locking convex portion 6 due to its cushioning property, and the heat insulating material 4 is locked by the heat insulating material locking convex portion 6. The displacement is suppressed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a cool bag according to the present invention will be described with reference to FIGS.
A cold storage bag comprising a back body 1 and an upper lid 2 openably and closably attached to the back body 1 to close an opening of the back body 1 will be described.

The upper lid 2 is rotatably attached to the back body 1 and has an inner lid 2a configured to close the opening with a fastener, and an outer lid formed so as to cover the inner lid 2a from above. 2b.

The back body 1 has a three-layer structure, and has, in order from the inside, a plastic inner case 3 as an inner layer, a cushioning heat insulating material 4 as an intermediate layer, and flexibility as an outer layer. And an exterior part 5.

The heat insulating material 4 is provided so as to cover the four side walls of the inner case 3 from outside. The heat insulating material 4 is formed in a plate shape having a substantially uniform thickness. For example, a polyurethane foam is used, but other materials having the same cushioning property can be used. The exterior portion 5 covers the entire heat insulating material 4 from the outside to form an outer layer of a cold insulation bag, and is formed of a flexible material such as cloth, leather, or a synthetic resin sheet. Similar materials can be used. However, the exterior part 5 may be partially provided with a reinforcement part.

On the outer surfaces of the two opposing side walls of the inner case 3, the heat insulating material 4 is formed in a streak shape in the vertical direction so as to prevent the heat insulating material 4 from being displaced in the left-right direction. Protrusions 6 are provided respectively. The heat insulating material locking projection 6
Are provided on the side wall three by three, and the three heat insulating material locking projections 6 are parallel to each other and have a positional relationship opposite to that of the other side wall. Further, the heat insulating material locking projection 6 is formed over substantially the entire length of the side wall from the upper end to the bottom of the inner case 3. The protrusion amount of the heat insulating material locking projection 6 is
Any amount can be used as long as the displacement can be suppressed, for example, 1 m
It is about m to 8 mm, preferably 3 mm to 5 mm.

The inner case 3 is formed by various manufacturing methods. In the present embodiment, the inner case 3 is formed by blow molding (hollow molding). Therefore, there is a mark on the bottom where the parison has been tightened, and a concave groove 7 is formed on the inner surface of each of the side walls along the vertical direction in a rail shape in accordance with the formation position of the heat-insulating material locking projection 6. Each book is formed. The concave groove 7 on one side wall has a positional relationship facing the concave groove 7 on the other side wall, and the left and right ends of a partition plate 8 as a partition are engaged with the two concave grooves 7 facing each other. , The storage portion of the inner case 3 can be partitioned into a plurality of storage spaces. In this embodiment, since there are three pairs of concave grooves 7, four storage spaces can be obtained by engaging a total of three partition plates 8, but in FIG. 2, only one partition plate 8 is engaged. 2 shows a state in which the storage section is divided into two. In addition, inner case 3
For example, polyethylene or polypropylene can be used as the material.

In the cold storage bag having the above-described structure, the storage portion can be divided into a plurality of portions by using the partition plate 8, so that, for example, frozen food and ice can be stored in one storage space and the other storage space. In the space, small items such as reels and gimmicks can be separated and stored separately for fishing. On the return route, the partition plate 8 is removed, and the storage portion is used as one large storage space, and the caught fish is placed in the space. You can take it home.

Even if a large amount of force is applied to the shoulder belt 9 attached to the exterior part 5 as a result of storing a large amount of material in the storage part, the heat insulating material 4
, In particular, in the lateral direction (left-right direction), there is an advantage that the posture and shape of the cold-insulating bag during carrying are stable and easy to carry. In addition, even if the heat insulating material 4 is repeatedly used or stored for a long time, the entire shape of the heat insulating material 4 is unlikely to be distorted or twisted, and the initial shape of the cool insulation bag can be maintained for a long time.

Further, since the heat-insulating material locking projections 6 are formed in a streak shape, the heat-insulating material locking projections 6 function as a kind of rib, whereby the rigidity of the inner case 3 and the cold insulation bag are improved. The rigidity of itself can also be increased.

Further, since the heat insulating material locking projections 6 are formed in a streak shape in the vertical direction and the concave grooves 7 are formed at the positions on the inner surface corresponding to the formation portions, the projections can be easily formed by blow molding. Can be formed. Therefore, it is advantageous in terms of cost such as mold cost as compared with injection molding and other manufacturing methods, and the heat insulating material locking projection 6 and the concave groove 7 can be formed simultaneously in one step.

In this embodiment, the heat insulating material locking projection 6 is used.
Has been described in the form of stripes in the vertical direction, but the direction, the number, and the shape can also be appropriately changed in design. Further, the configuration of the partition is not limited to the plate shape as described above, and various forms such as a partition having a storage space in the partition itself can be adopted.

[0022]

According to the present invention, the displacement of the heat insulating material is suppressed by the heat insulating material locking projection, so that the heat insulating bag is excellent in stability when carried and the shape of the cold insulating bag is long. Is maintained.

Further, by forming the heat-insulating material locking projections in a streak shape along the vertical direction, it is particularly effective for displacement of the heat-insulating material in the horizontal direction. Also, the formation of the convex portion is facilitated. Moreover, since the streaks of the insulating material locking projection function as a kind of rib, the rigidity of the inner case and thus the rigidity of the cool insulation bag itself can be increased.

Further, by forming a concave groove on the inner surface so that a partition can be used, the storage portion can be used for multiple purposes, and the concave groove and the heat insulating material locking convex portion are provided at corresponding positions. Suitable for blow molding and can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cold storage bag according to an embodiment of the present invention.

FIG. 2 is an exemplary perspective view including broken lines at two places showing a state in which an upper lid of the cool insulation bag of the embodiment is opened;

FIG. 3 is an end view taken along line PP of FIG. 2;

FIG. 4 is a perspective view showing a cool box for explaining a conventional cool bag.

[Explanation of symbols]

Reference numeral 3 denotes an inner case, 4 denotes a heat insulating material, 5 denotes an exterior portion, 6 denotes a convex portion for retaining a heat insulating material, 7 denotes a concave groove, and 8 denotes a partition plate (partition).

Claims (3)

[Claims] An insulated bag provided with a heat insulating material having a cushioning property outside a plastic inner case having an upper surface opening, wherein the heat insulating material is provided on an outer surface of the inner case. (2) A cold insulation bag characterized in that a heat insulating material locking projection (6) is provided in order to suppress the displacement of (1). 2. The cool insulation bag according to claim 1, wherein the heat-insulating material locking projection is formed in a streak shape along the vertical direction. 3. A concave groove (7) is formed on the inner surface of the inner case (3) along a vertical direction at a position corresponding to the heat insulating material retaining convex portion (6). 3. The cool insulation bag according to claim 2, wherein the storage portion of the inner case (3) can be partitioned by engaging the partition (8) with the partition (8).