JP2014126320A - Drop-lid for cold insulation and cool box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide drop-lids for cold insulation capable of rationally adapting for many kinds of size of cool boxes in order to keep an internal space (13) at a temperature different from a temperature of surrounding atmosphere.SOLUTION: This invention relates to a drop-lid (20) for cold insulation comprising a container main body having an opened upper surface and an upper lid (12) for opening or closing the opening of the container main body and the drop-lid of this invention is used while being positioned between an inner bottom part of a cool box (10) for keeping an inner space (13) at a temperature different from a temperature of surrounding atmosphere and a lower surface of the upper lid (12). The drop-lid (20) for cold insulation comprises a plate-like lid main body (21) contacted with the inner surface of the cool box (10), a thermal insulation agent storage part (22) capable of storing a thermal insulation agent (30) separate from the drop-lid (20) for cold insulation at one surface in the lid main body (21) and a handle (23) arranged at a surface opposite to the thermal insulation agent storage part (22). Either the upper surface and/or the lower surface of the lid main body is provided with at least one polygonal line (21C) forming an outer periphery larger than a flat surface shape of the insulation agent storage part (22).

Description

  The present invention relates to a cold storage box and a cold storage drop lid for maintaining and improving the heat retention performance of the cold storage box for a longer time, and a cold storage box using the drop cover.

It has been conventionally performed to manufacture a cold box (cooler box) using a highly functional material such as a material excellent in heat insulation and a vacuum panel.
Further, in order to make the heat insulation area as efficient as possible in the internal space associated with opening and closing of the cold box, it is desirable to use the size of the cold box according to the size of the stored items. However, techniques such as those disclosed in Patent Literature 1 and Patent Literature 2 are provided in place of many variations of the storage size. That is, it is a technique related to the inner lid (drop lid) of the cool box that partitions the internal space in a large cool box vertically to narrow the storage space and reduces the space in which the cool air exists to improve the cool performance.

With respect to the cooling agent in the cold box, ice is generally widely used. In recent years, a bag made of a gel material (sodium polyacrylate, ethylene glycol) filled in a bag body such as vinyl chloride is easily available and sometimes used.
There is a full-fledged cooling agent in which a hard case is filled with a liquid that does not solidify unless it falls to about minus 20 degrees Celsius (hereinafter referred to as “hard case type coolant”). ("Cold storage agent 12" disclosed in Patent Document 1 "Cold Insulating Agent 3" disclosed in Patent Document 2 is presumed to correspond to a hard case type coolant)

Japanese Utility Model Publication No. 52-137348 Japanese Utility Model Publication No. 56-92072

  As described above, there are a great many types of cool boxes (mainly cooler boxes), and the sizes thereof are also various. It is not reasonable to provide an inner lid (drop lid) that fits many such sizes. This is because manufacturing, product management, and the like become complicated if the number of molds for molding the inner lid (drop lid) is the same as the number of size types of the cooler box.

  In addition, in order to improve the cooling capacity of the cooler box, there is a case where it is desired to use the hard case type coolant described above. However, the size of the hard case type coolant is not reasonable if it is manufactured according to the size of the cooler box.

  The problem to be solved by the present invention is to provide a cold storage lid that can be reasonably adapted to various types of cold storage boxes.

(First invention)
The first invention in the present application includes a container body having an upper surface opened, and an upper lid (12) for opening and closing the opening of the container body, and a cold insulation for keeping the inner space (13) at a temperature different from the outside air temperature. The present invention relates to a cold insulation drop lid (20) used by being positioned between the inner bottom of the box (10) and the lower surface of the upper lid (12).
The cold insulation drop lid (20) includes a plate-like lid body (21) in contact with the inner surface of the cold insulation box (10) and the cold insulation drop lid (20) on one surface of the lid main body (21). A heat insulating agent storage section (22) capable of storing a separate heat insulating agent (30) and a handle (23) provided on the surface opposite to the heat insulating agent storage section (22) are provided.
The lid main body (21) is provided with a folding structure that easily bends the lid main body on the outer periphery larger than the planar shape of the heat insulating agent storage section (22).

(Glossary)
The “cold box (10)” is a box formed of a material excellent in heat insulation performance and formed for the purpose of maintaining the internal space for a long time at a temperature different from the outside air temperature. In general, it is used as a so-called cooler box for storing the contents stored in the internal space at a low temperature by storing ice and a cooling agent. However, this does not preclude the use of the “cold box” or “cold drop lid” of the present application as a warm box for keeping the heated contents as high as possible.
The “heat insulating agent (30)” is a cold insulating agent for the purpose of keeping the internal space at a temperature lower than the outside air temperature, and a warming agent for the purpose of keeping the internal space at a temperature higher than the outside air temperature.
The “heat insulating agent storage portion (22)” may be in the shape of a bag, or may be a thing that substantially stores a hard case type coolant by fixing it with a band or the like.

  The “folding structure” is formed by changing the thickness dimension of the lid main body (21) to make it easier to bend or changing the material forming the lid main body (21). It also includes a display (printing or engraving) indicating a place to be bent.

(Function)
First, the heat insulating agent (30) is stored in the heat insulating agent storage portion (22) of the cold storage drop lid (20).
The top cover (12) of the cold box (10) is opened, and the lid main body (21) in the cold storage drop cover (20) is adapted using the folding structure in accordance with the horizontal sectional shape of the internal space (13). Then, the heat insulating agent storage part (22) is positioned on the internal space (13) side of the cold box (10) so that the internal space (13) is narrowed. Thereby, the heat insulation of the internal space becomes efficient.
Hold the handle (23) when taking out the items stored in the internal space (13) of the cold box (10) or storing the items in the internal space (13) of the cold box (10). This is done after lifting the cold insulation lid (20) and opening the upper surface of the internal space (13). When the removal or storage is completed, the cooling cover lid (20) is pushed down again to narrow the internal space (13).
Even if the size of the cooler box is slightly different, it can be adapted by folding using the folding structure of the lid main body (21) in the cold insulation lid (20).

(Variation 1 of the first invention)
The folding structure according to the first aspect of the present invention includes at least one fold line (21C) having an outer periphery larger than the planar shape of the heat insulating agent storage section (22) on the upper surface and / or the lower surface of the lid body (21). It is good as well.

The “polyline (21C)” is a part that is more easily bent than other parts. That is, it is a part for deforming the cold insulation lid (20) into a shape that matches the horizontal sectional shape of the internal space in the cold box (10) using the cold insulation lid (20) of the present application. Since it is “a shape that matches the cross-sectional shape of the internal space in the horizontal direction”, it is generally rectangular.
A user of the cold box (10) may cut off the lid body (21) and use it along the broken line (21C).
The lid body (21) may be provided with a plurality of broken lines (21C). For example, if the cold insulation drop cover (20) having two broken lines (21C) is used, it can accommodate three types of cold boxes (10), including the case where the broken line (21C) is not used.
It is good also as preparing for the case where it uses by bending, without using a broken line (21C) as a cut line. That is, it is possible to provide a fold line that can reasonably fold the portion of the lid body (21) corresponding to the vicinity of the corner of the internal space in the cold box (10).

(Variation 2 of the first invention)
In the first invention, the surface on the side opposite to the handle (23) in the heat insulating agent storage portion (22) is uneven (for example, mesh surface 22B) for reducing the contact area of the plane in contact with the surface Is more preferable.

(Function)
There is a possibility that the surface of the heat insulating agent storage part (22) on the side opposite to the handle (23) will come into contact with the stored item stored in the internal space (13) of the cold box (10). For example, in the case where a hard case type coolant is stored in the heat insulating agent storage unit (22), the heat insulating agent storage unit (22) and the stored item may freeze.
When the unevenness (22B) is formed, it is difficult to freeze even if the heat insulating agent storage part (22) contacts the stored item, and even if it is frozen, it is easy to peel off.

(Second invention)
The second invention relates to a cool box (10) provided with the cool cover lid (20) according to the first invention.
That is, it is provided with a cold insulation drop lid (20) that is used by being positioned between the inner bottom of the cold insulation box (20) and the lower surface of the upper lid (12), and the cold insulation drop lid (20) is provided in the cold insulation box. A plate-shaped lid body (21) in contact with the inner side surface of (10), and a heat retaining material capable of storing a heat retaining agent (30) separate from the cold retaining lid (20) on one surface of the lid body (21) An agent storage part (22), and a handle (23) provided on a surface opposite to the heat insulating agent storage part (22). The upper surface and / or the lower surface of the lid main body (21) is provided with at least one fold line (21C) having an outer periphery larger than the planar shape of the heat insulating agent storage portion (22).
The lid main body (21) is provided with a folding structure that easily bends the lid main body on the outer periphery larger than the planar shape of the heat insulating agent storage section (22).

(Variation 1 of the second invention)
The folding structure according to the first aspect of the present invention includes at least one fold line (21C) having an outer periphery larger than the planar shape of the heat insulating agent storage section (22) on the upper surface and / or the lower surface of the lid body (21). It is good as well.

(Variation 2 of the second invention)
In the second invention, the surface on the side opposite to the handle (23) in the heat insulating agent storage section (22) is also provided with unevenness (for example, a mesh surface 22B) for reducing the contact area of the plane in contact with the surface. ) Is more preferable.

(Variation 3 of the second invention)
In the second invention, the cold insulation drop lid (20) may be formed by arranging a plurality of cold drop lids (20) in parallel between the inner bottom and the upper lid of the cold insulation box (10).
As a result, the size of the cold box (10) can be dealt with more widely.

According to the first invention of the present application, it is possible to provide a cold insulation drop lid for maintaining and improving the heat insulation performance of the cold insulation box for a longer time.
According to the second invention, it is possible to provide a cold box for maintaining and improving the heat insulation performance for a longer time.

It is a perspective view which shows the use condition in embodiment of this invention. It is a perspective view which shows the use condition in embodiment of this invention. It is a top view which shows the principal part of embodiment of this invention. It is a perspective view which shows the use condition in embodiment of this invention. It is a top view which shows the principal part of embodiment of this invention. It is the top view and perspective view which show the variation of the principal part in embodiment of this invention. It is a perspective view which shows the variation of the principal part in embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. The figures used here are FIGS. 1 to 7.

As shown in FIG. 1, a cold box 10 having an upper lid 12 and an inner lid 14 that open on the upper surface and maintaining the internal space 13 at a temperature different from the outside temperature, the inner bottom of the cold box 10, There is a cold insulation drop lid 20 that is used by being positioned between the lower surface of the upper lid 12.
The cold insulation lid 20 includes a plate-like lid body 21 and a handle 23 that are in contact with the inner surface of the cold box 10.

As shown in FIG. 2, a heat insulating agent storage portion 22 that can store a heat insulating agent 30 that is separate from the cold insulating drop cover 20 is provided on one surface of the lid main body 21.
The heat retaining agent 30 shown in FIG. 2 is a hard case type coolant. However, the heat retaining agent is a warming agent for the purpose of keeping the internal space at a temperature higher than the outside air temperature.

The heat insulating agent storage unit 22 is formed in a bag shape having a simple chuck type storage lid 22A. Further, the surface opposite to the handle 23 that does not appear in this figure is formed as a mesh surface 22 </ b> B that communicates with the inside of the heat insulating agent storage portion 22.
Since the mesh surface 22B is also fine irregularities, it is difficult to freeze even if the mesh surface 22B comes into contact with the stored item, and even if it is frozen, it is easy to peel off.
The planar shape of the heat insulating agent storage unit 22 is determined so that a typical hard case type coolant or a slightly larger hard case type coolant can be stored. Therefore, even a hard case type coolant smaller than that can be used.

As shown in FIG. 3, the upper surface and / or the lower surface of the lid main body 21 is provided with one broken line 21 </ b> C that forms an outer periphery larger than the planar shape of the heat insulating agent storage portion 22. The broken line 21C is a part (specifically, for example, a groove) that is more easily bent than the other part. The user of the cold box 10 may cut off the lid body 21 and use it along the broken line 21C.
The presence of the broken line 21C allows adaptation even if the size of the cooler box is slightly different.

As shown in FIG. 4, for the cooler box 10 having a large horizontal dimension, two cool-prevention drop lids 20 are used in different directions. The cooler box 10 is also provided with a partition plate 24 for partitioning the internal space 13 in the vertical direction.
In the case of using the two cold insulation drop lids 20, it is convenient to use the handle 23 with a different color (the distinguishing portion 23 </ b> A). This is because it is easy to remember what is under any of the cold insulation lids 20.
For example, when this cooler box 10 is brought for fishing, if the user decides and uses the lower part of the cold insulation lid 20 with the distinguishing portion 23A as a storage space for the fish that has been caught, it is difficult to escape the cold air. it can. That is, when storing the fish that has been picked up, the cooler lid 20 with the distinguishing portion 23A is lifted, and the other cooler lid 20 is not used. Then, the cold air escapes only in the internal space 13 below the cold insulation drop lid 20 having the distinguishing portion 23A. This is because the other internal space 13 is still surrounded by the cool drop lid 20 and the partition plate 24 that are not used.

FIG. 5 shows a case where a plurality of gel-like coolants 31 are employed as the coolant without using the hard case-type coolant 30 and are stored in the cold insulation storage unit 22.
The gel-like coolant 31 is economical because it is easily available and inexpensive.

FIG. 6 shows a plan view (A) and a perspective view (B) showing variations of the drop lid.
In the lid main body 21 shown in FIG. 6, a portion of a rectangular plane that is slightly larger than the cold insulator storage portion 22 is formed as a thick portion 21D, and the periphery of the thick portion 21D is formed as a thin portion 21E. The boundary between the thick portion 21D and the thin portion 21E functions as the broken line 21C. That is, when the lid body 21 is pushed downward from the opening of the cooler box, the lid body 21 bends along the fold line 21C, narrowing the cooling space of the cooler box, and suppressing the deterioration of the customer performance.

FIG. 7 shows a further variation of the drop lid.
FIG. 7 (A) shows that the cryogen storage part 22 has an elliptical shape, and a thick part 21D is formed so as to form a cross shape with the cold insulation agent storage part 22 as the center, and the tip side of the thick part 21D. This is a variation in which a thin portion 21E is formed.
When the lid body 21 adopting this shape is pushed downward from the opening of the cooler box, the vicinity of the corner of the cooler box is most easily bent. Therefore, it is easy to work when pushing, and the gap near the corner of the cooler becomes small even after pushing.

FIG. 7B shows a further variation of the variation shown in FIG. That is, a portion where neither the thick portion 21D nor the thin portion 21E exists in the longitudinal direction is provided.
When the lid body 21 adopting this shape is pushed downward from the opening of the cooler box, the longitudinal direction of the cooler box is also easily bent along with the vicinity of the corner. Therefore, it is easy to work when pushing, and the gap near the corner of the cooler becomes small even after pushing.

INDUSTRIAL APPLICABILITY The present invention has applicability in leisure industries such as a cold box manufacturing industry, a cooler box as a fishing gear, and a fishing equipment rental industry.

DESCRIPTION OF SYMBOLS 10; Cold storage box (cooler box) 11; Main body 12; Opening and closing lid 13; Internal space 14; Inner lid 20; Dropping lid 21; Lid main body 21A: Upper surface 21B; Lower surface 21C; ; Refrigerant storage part 22A; Storage lid 22B; Mesh surface 22C; Flat surface 23; Handle 23A; Discrimination part 24; Partition plate 30; Insulation agent (hard case type coolant) 31;

Claims (7)

A cool body provided with a container body having an upper surface opened and an upper lid for opening and closing the opening of the container body, and is used by being positioned between the inner bottom and the upper cover in a cold box for keeping the inner space at a temperature different from the outside air temperature. A drop lid,
A plate-like lid body in contact with the inner surface of the cold box;
On one side of the lid body, a heat insulating agent storage section capable of storing a heat insulating agent separate from the cold insulation drop cover,
A handle provided on the surface opposite to the heat insulating agent storage,
With
A cold insulation drop lid, wherein the lid body is provided with a folding structure in which the lid body is easily bent at an outer periphery larger than the planar shape of the heat insulating agent storage portion.   The folding structure is provided with at least one fold line having an outer periphery larger than the planar shape of the heat insulating material storage portion on the upper surface and / or the lower surface of the lid body.   3. The cold insulation according to claim 1, wherein a surface opposite to the handle in the heat insulating agent storage portion is provided with unevenness for reducing a contact area of a plane in contact with the surface. 4. Drop lid. A cold storage box having an upper lid that opens on the upper surface and maintaining the internal space at a temperature different from the outside air temperature,
With a cold storage drop lid used between the inner bottom and the upper lid in the cold box,
The cold storage drop lid is a plate-shaped lid body in contact with the inner surface of the cold box,
On one side of the lid body, a heat insulating agent storage section capable of storing a heat insulating agent separate from the cold insulation drop cover,
A handle provided on the surface opposite to the heat insulating agent storage,
With
The said cover main body is a cold box provided with the structure for bending which the said cover main body is easy to bend | fold in the outer periphery larger than the planar shape of a heat insulating material accommodating part.   5. The cold insulation box according to claim 4, wherein the folding structure includes at least one fold line forming an outer periphery larger than a planar shape of the heat insulating agent storage portion on an upper surface and / or a lower surface of the lid main body.   The cold box according to any one of claims 4 and 5, wherein a surface opposite to the handle in the heat insulating agent storage portion is formed with irregularities for reducing a contact area of a plane in contact with the surface. .   The cold insulation box according to any one of claims 4 to 6, wherein a plurality of the cold insulation drop lids are arranged in parallel between an inner bottom and an upper lid of the cold insulation box.

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