JP2003182777A - Cold insulation box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold insulation box which is excellent in sealability of a heat insulating lid, easy to manufacture to be capable of suppressing man- hours and reducing a cost, excellent in detachability of the lid, easy to repair, foldable, and easy to carry and store. <P>SOLUTION: The cold insulation box includes a rim member comprising joint pieces joining to face a sidewall, an upper surface forming a plane to extend inwardly in an opening from the middle of a joint piece to come into contact with a lid, and a hook piece bending downwardly from the upper surface. The rim member is joined and fixed to the sidewall so that the upper surface is of approximately the same height along an upper inner periphery of the sidewall. An upper end surface of a heat insulating inner wall material is fitted into a U-shaped space formed by the joint piece and the hook piece, thereby joining and fixing the inner wall material to the sidewall. In addition, the heat insulating lid is mounted on the upper surface to close the opening. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cool box for transporting an article while keeping it cold or keeping it warm.

[0002]

2. Description of the Related Art Conventionally, in order to carry foods, medicines and the like in a cold or warm state, a cold box in which a heat insulating material is spread over a box-shaped outer box has been used. Conventional cold storage boxes include those shown in FIGS. 9 and 10, for example. The cold-insulating box 30 is a box-shaped outer box 5 made of waterproof cloth having an opening 5a on the upper surface, and left and right, front and rear heat-insulating inner wall members 20 to 23.
And a heat insulating inner bottom material 24 and a heat insulating lid material 25.
The heat-insulating inner wall materials 20 to 23, the heat-insulating inner bottom material 24, and the heat-insulating lid material 25 are plate-shaped heat insulating materials 20a to 25a made of foamed resin.
Is covered with aluminum vapor deposition films 20b to 25b.

In the conventional cold-insulating box 30, first, the heat-insulating inner wall members 20 to 23 are leaned against the inner walls 6 of the outer box 5 in close contact with each other, and the bottom wall 7 surrounded by the heat-insulating inner wall members 20 to 23 is heat-insulated. The inner sole material 24 is inserted. Here, the heat insulating inner wall material 20
The heights of 23 to 23 are lower than the height of the outer box 5 by the thickness of the heat insulating lid member 25. Then, the inner wall 6 near the opening 5a of the outer box 5 and the upper end surfaces 20d to 2 of the heat insulating inner wall members 20 to 23 are formed.
3d and side surfaces 20c to 23 of the heat insulating inner wall materials 20 to 23
The upper part of c is covered with a strip-shaped covering material 32 of the same quality as the outer box 5.
The upper end of the covering 32 is sewn along the inner circumference to the inner wall 6 near the upper opening 5a of the outer box 5. The lower end of the coating material 32 is attached to the side surface 2 of the heat insulating inner wall materials 20 to 23 with the adhesive tape 33.
It adheres to 0c-23c. An article is put into the cold-insulating box 30 manufactured in this way, the opening 5a is closed with the heat insulating lid member 25, and the cold-insulating box 30 is transported while keeping the internal temperature.

[0004]

However, since the opening 5a on the upper surface of the conventional cold insulation box 30 is formed of a soft waterproof cloth, the upper end of the outer box 5 is bent and the heat insulating lid member 25 is removed. In addition to being difficult to mount, it was difficult to ensure sufficient sealing performance of the heat insulating lid member 25.

Further, the manufacturing work is complicated because the covering material 32 must be attached by sewing or an adhesive tape in a state where the heat insulating inner wall members 20 to 23 are in close contact with the inner wall 6 of the outer box 5 and lean against them. .

Further, the heat insulating inner wall materials 20 to 23 are covered with the covering material 3.
Since it is sewn or fixed with an adhesive tape via 2, it is difficult to remove the heat insulating inner wall members 20 to 23 when the heat insulating inner wall members 20 to 23 are damaged, and the repair is complicated.

The present invention has been made in view of the above circumstances, and is excellent in the sealing property of the heat insulating lid member, easy to manufacture, the number of steps can be suppressed and the cost can be reduced, and the heat insulating lid member can be attached and detached. The object of the present invention is to provide a cool box that has good properties, is easy to repair, and is foldable and easy to transport and store.

[0008]

According to another aspect of the present invention, there is provided a cold-insulating box having a joining piece which faces a side wall and is joined to the joining piece, and a flat surface which extends inward from an upper end of the joining piece and contacts the lid member. An edge member composed of an upper surface portion and a hook piece bent downward from the upper surface portion is provided, and the edge member is joined and fixed to the side wall so that the upper surface portion has substantially the same height along the inner circumference above the side wall. By fitting the upper end surface of the heat-insulating inner wall material into the U-shaped space formed by the joining piece and the hook piece, the heat-insulating inner wall material is joined and fixed to the side wall, while the heat-insulating lid material is provided on the upper surface portion. It is characterized in that the opening is closed by placing it.

According to another aspect of the cold-insulating box of the present invention, a joining piece facing the side wall and joined, an upper surface portion that extends from the middle of the joining piece to the inside of the opening and abuts the lid member, and an upper surface portion. An edge member formed of a hook piece that bends downwardly from the side wall, and the edge member is joined and fixed to the side wall so that the upper surface is approximately at the same height along the upper inner circumference of the side wall. By fitting the upper end surface of the heat insulating inner wall material into the U-shaped space formed by and, the heat insulating inner wall material is bonded and fixed to the side wall, while the heat insulating lid material is placed on the upper surface to open. It is characterized by blocking.

A cool box according to a third aspect is characterized in that the joint piece of the edge member is extended downward.

A cool box according to a fourth aspect is characterized in that the lower end of the hook piece of the edge member is inclined toward the joining piece.

According to a fifth aspect of the present invention, in the cold-insulating box, the heat-insulating inner wall material and the heat-insulating inner bottom material are detachable.

A cool box according to a sixth aspect is characterized in that the outer box has flexibility and an edge member provided on one side of the opening of the outer box is divided into a plurality of parts.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a cool box according to the present invention. 2 is the same assembly drawing,
3 is a plan view of the same, and FIG. 4 is a longitudinal sectional view of the same. FIG. 5: is a longitudinal cross-sectional view which shows the assembling method of the same cool box. FIG. 6 is a vertical cross-sectional view showing a usage state of the cold insulation box.

1 to 6, the cold-storing box 1 is a box for transporting foods, medicines, etc. in a cold or warm state. The cool box 1 includes an outer box 5 made of waterproof cloth having an opening 5a on the upper surface, and heat insulating inner wall members 20 to 23 on the left, right, front and rear.
A heat insulating inner bottom member 24, a heat insulating lid member 25, and edge members 10 to 13 for fixing the heat insulating inner wall members 20 to 23. On the left and right outer wall surfaces of the outer box 5, cloth handles 8 for lifting the cold insulation box 1 are attached. The waterproof cloth of the outer box 5 is, for example, a material such as an aluminum vapor deposition film sheet, polyethylene cloth, tarpaulin (PVC, EVA), polyester tufter, and nylon tufter. The heat-insulating inner wall materials 20 to 23, the heat-insulating inner bottom material 24, and the heat-insulating lid material 25 have the surface of the plate-shaped heat insulating materials 20a to 25a made of expanded resin such as expanded polystyrene, and the aluminum vapor deposition films 20b to 25b. It is covered with. The outer box 5 does not necessarily have to be made of cloth, and may be made of synthetic resin, paper, or the like. However, considering the folding of the cold insulation box 1 as described later, a fabric having excellent flexibility is suitable. Further, although the fabric does not necessarily have to be waterproof, it is preferable to have waterproofness in consideration of the fact that the cooled article is likely to condense and daily maintenance such as washing and wiping for hygienic reasons.

The edge members 10 to 13 are made of synthetic resin and are joined to the inner wall 6 facing the inner wall 6 as will be described later.
b, the upper surface portions 10a to 13a extending inward of the opening 5a from the middle of the joining pieces 10b to 13b and forming a flat surface, and the hook pieces 10d to 13d bent downward from the upper surface portions 10a to 13a.
Consists of. The edge members 10 to 13 are heat insulating inner wall members 20 to
A synthetic resin having heat resistance, such as polypropylene, is preferable because it has a rigidity that does not lose its shape when the 23 and the heat insulating lid member 25 are brought into close contact with each other. Also, the joining piece 10
The upper edge pieces 10c to 13c are portions of the b to 13b that project upward from the upper surface portions 10a to 13a. Furthermore, the joining pieces 10b to 13b are extended downward longer than the facing hook pieces 10d to 13d. That is, the edge member 10
Nos. 13 to 13 each have a cross-section in the shape of an inverted Y-shape.

Next, a method of manufacturing and using the cold-insulating box 1 in this embodiment will be described. First, the four edge members 10 to 13 are fixed to the inner wall 6 of the opening 5a of the outer box 5 along the inner circumference thereof. Specifically, first, as shown in FIG. 2, the joining pieces 10b to 13b of the respective edge members 10 to 13 are inserted into the opening 5a so as to be in close contact with the inner wall 6. Edge member 10
The height at which the upper surfaces 10a to 13a are fixed is such that the positions of the upper surface portions 10a to 13a are lower than the upper end of the outer box 5 by the thickness of the heat insulating lid member 25. And the upper edge piece 10c of the edge members 10-13
13c is sewn to the outer box 5 (seam n). When sewing is performed in this manner, the upper edge pieces 10c to 13c need to be formed into a thickness that enables sewing. Further, as will be described later, when the heat insulating lid member 25 is fitted, it is necessary to have a rigidity that does not cause bending. In addition, the edge members 10 to 1
The fixing of 3 is not limited to sewing, and the edge members 10 to 13 may be fixed to the outer box 5 with an adhesive. In order to protect the upper ends of the outer case 5 and the upper edge pieces 10c to 13c, cloth for edging may be sewn so as to cover the upper ends of the both.

As shown in FIG. 3, the four edge members 10 to 13 are joined and fixed to the inner wall 6 of the opening 5a of the outer box 5 along the inner periphery thereof, so that the edge members 10 to 13 are frame-shaped. Is located in. In addition, the inner periphery of the opening 5a of the outer box 5 has edge members 10 to 1
It is in a state of being lined with the upper edge pieces 10c to 13c of No. 3.

Next, as shown in FIG. 5, the edge members 10 to 1
The heat insulating inner wall members 20 to 23 are fitted from below between the joining pieces 10b to 13b of No. 3 and the hook pieces 10d to 13d. Then, the heat insulating inner wall materials 20 to 23 are brought into close contact with and fixed to the respective surfaces of the inner wall 6 of the outer box 5 so as to cover all of the inner wall 6. Next, the heat insulating inner bottom material 24 is fitted into the bottom wall 7 of the outer box 5 surrounded by the heat insulating inner wall materials 20 to 23. As a result, the inside of the outer box 5 is completely covered with the heat insulating inner wall members 20 to 23 and the heat insulating inner bottom member 24, and the cold insulating box 1 is completed.

When actually using the cold insulation box 1, with the article inside, as shown in FIG. 1, the heat insulating lid member 25 is inserted into the opening 5a of the outer box 5 to cover the lid. To do. At this time,
As shown in FIG. 6, the end surface 25d of the heat insulating lid member 25 is fitted to the upper edge pieces 10c to 13c of the edge members 10 to 13. Further, the lower surface 25c of the heat insulating lid member 25 is brought into close contact with the upper surface portions 10a to 13a of the edge members 10 to 13. Since the heat insulating lid member 25 and the edge members 10 to 13 are in contact with each other with no gap between them, the sealing property is excellent, and the temperature change inside the cold insulation box 1 due to the inside of the cold insulation box 1 communicating with the outside is minimized. It is possible to limit it. Note that the heat insulating lid member 25 is not limited to being detachable, and may be attached to the outer box 5 so as to be swingable so as to be opened and closed in the opening 5a.

As shown in FIG. 7, the edge members 10 to 13 are
The hook pieces 10d to 13d are not vertically hung from the upper surface portions 10a to 13a, but the lower end is tilted in the joining piece 10b to 13b direction (with the tilt angle a).
It is also possible to provide 13d. In this case, the joining piece 1
Since the distance between 0b to 13b and the hook pieces 10d to 13d is narrowed downward, the force with which the edge members 10 to 13 sandwich the heat insulating inner wall material 20 to 23 increases, and the heat insulating inner wall material 20 is increased.
~ 23 can be firmly held. Therefore, even if vibration is applied to the cool box 1 during transportation, the heat insulating inner wall material 20
It is possible to minimize the temperature fluctuations inside the cold insulation box 1 to 23.

Further, as shown in FIG. 7B, when the heat insulating inner wall members 20 to 23 are fitted to the edge members 10 to 13, the hook pieces 10d to 13d are pushed out and the upper surface portion 10 is opened.
The corners of a to 13a and the hook pieces 10d to 13d rise in the arrow direction. In this way, the upper surface portions 10a to 13a rise and are urged toward the heat insulating lid member 25, so that the sealing performance between the upper surface portions 10a to 13a and the lower surface 25c of the heat insulating lid member 25 is further improved. It will be.

As another form of the edge members 12 and 13, the edge member 12 is divided into two, and the edge member 14 and the edge member 15 are divided.
It is also possible to configure it with two articles. In this case,
As shown in FIG. 8, by pushing the side wall 5b of the outer box 5 in the arrow direction in a state where the heat insulating inner wall members 20 to 23 and the heat insulating inner bottom member 24 are removed, the side wall 5b is bent in a V shape and the edge member 14 is formed. , 15 approach the edge members 10 and 11 to allow the cold insulation box 1 to be folded. By folding in this manner, it becomes easy to carry and store only the cool box 1 containing no articles. In addition, the cold insulation box 1 is foldable even if only the edge members 10 and 11 are provided without the edge members 14 and 15. In this case, the heat insulating inner wall members 22, 2
3 is sandwiched between the heat insulating inner wall members 20 and 21 so as to be fixed.

According to the present embodiment, the heat insulating inner wall material 20 is simply fitted into the edge members 10 to 13 fixed to the inner periphery of the opening 5a of the outer box 5. ~ 2
Since the fixing of No. 3 is completed, the manufacturing is easy, the man-hour is suppressed, and the cost can be reduced.

Further, since the heat insulating lid member 25 is fitted to the upper edge pieces 10c to 13c of the edge members 10 to 13 which are rigid and maintained in a constant frame shape, the heat insulating lid member 25 is sealed. It is easy to secure the sex. Further, the shape is maintained even when the heat insulating lid member 25 is repeatedly attached and detached, and the detachability is maintained as it is. By providing the upper edge pieces 10c to 13c with predetermined rigidity and elasticity, the sealing performance can be further improved.

Further, since the joining piece 10b of the edge members 10 to 13 is extended downward, the area in which the edge members 10 to 13 hold the heat insulating inner wall members 20 to 13 is widened, and the heat insulating inner wall members 20 to 13 are formed. 23 can be more firmly held in the outer box 5. Therefore, even if vibration is applied to the cold-insulating box 1 during transportation, the heat-insulating inner wall members 20 to 23 are unlikely to come off, and the temperature change inside the cold-insulating box 1 can be minimized.

Further, since the heat insulating inner wall materials 20 to 23 and the heat insulating inner bottom material 24 are detachable, it is easy to repair the cool box 1 and replace the heat insulating inner wall material and the like.

In the present embodiment, the edge members 10 to 13 having the inverted U-shaped cross section are used, but the present invention is not limited to this, and the cross section is a simple gate-shaped inverted U-shape. It may have a shape. In addition, an edge member having a 7-shaped cross section may be used in which the joining pieces 10b to 13b are simply extended downward.

[0029]

According to the first aspect of the present invention, the edge member is joined and fixed along the inner periphery above the side wall of the outer box so that the upper surface portion has substantially the same height, and the upper surface portion is thermally insulated. A cover material is placed to close the opening of the outer box. Therefore, the upper surface of the edge member and the plate-shaped heat insulating cover material face each other without a gap, and the sealing performance of the heat insulating cover material is improved, and the temperature change due to the inside of the cold insulation box communicating with the outside is minimized. It is possible to suppress. Further, since the fixing of the heat-insulating inner wall material is completed only by fitting the heat-insulating inner wall material to the edge member fixed to the inner circumference of the opening of the outer box, the manufacturing is easy and the man-hours can be suppressed to reduce the cost. It is possible.

According to the invention of claim 2, in addition to the effect of claim 1, while the end surface of the heat insulating lid member is pressed against the portion protruding upward from the upper surface of the joining piece, the heat insulating lid material is provided on the upper surface. Since it is placed, it is easy to ensure the sealing property of the heat insulating lid member. Further, the shape of the opening is maintained by the edge member even when the heat-insulating lid member is repeatedly attached and detached, and the detachability is kept good.

According to the third aspect of the invention, since the joining piece of the edge member is extended downward, the area for holding the heat insulating inner wall material is expanded, and the heat insulating inner wall material is more firmly held in the outer box. can do. Therefore, even if vibration is applied to the cool box during transportation, the heat insulating inner wall material is unlikely to come off, and it is possible to minimize the temperature change inside the cool box.

According to the invention of claim 4, the lower end of the hook piece facing the joining piece of the edge member is inclined toward the joining piece.
Since the space between the joining piece and the hook piece is narrow, the force for holding the heat insulating inner wall material is increased, and the heat insulating inner wall material can be firmly fixed. Therefore, it is possible to minimize the temperature change inside the cold insulating box even if vibration is applied to the cold insulating box during transportation because the heat insulating inner wall material is hard to come off.

According to the fifth aspect of the present invention, since the heat insulating inner wall material and the heat insulating inner bottom material are detachable, it is easy to repair the cold insulation box and replace the heat insulating inner wall material and the like.

According to the invention of claim 6, since the outer box is flexible and the edge member provided on one side of the opening of the outer box is divided into a plurality of parts, the heat insulating inner wall material is removed. In this state, the outer box can be folded by bending the one side. Therefore, it becomes easy to carry and store only in the cool box.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a cool box according to the present invention.

FIG. 2 is an assembly drawing of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a vertical sectional view of the same.

FIG. 5 is a vertical cross-sectional view showing an assembling method of the same cool box.

FIG. 6 is a vertical cross-sectional view showing a usage state of the cold insulation box.

FIG. 7 is an end view showing an example of the same edge member.

FIG. 8 is a perspective view showing another example of the cold insulation box according to the present invention.

FIG. 9 is a perspective view showing a conventional cool box.

FIG. 10 is a vertical cross-sectional view of a conventional cool box.

[Explanation of symbols]

1 ・ ・ ・ ・ ・ ・ Cooling box 5 ・ ・ ・ ・ ・ ・ Outer box 10-15 ... Edge member 10a to 15a ... Top part 10b to 15b ... Joining piece 10c to 15c ... Upper edge piece 10d ~ 15d ... hook pieces 20-23 ... Insulating inner wall material 24 ... Insulating inner bottom material 25 ... Insulating lid material

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E061 AA05 AB09 AD07 CA04 CA15                       DA02 DB11 DB17                 3E067 AB01 AB81 BA05A BA06A                       BA12A BB01A BB05A BB14A                       BB17A BB30A BC06A BC07A                       CA18 EE15 FC01 GA04 GA11

Claims (6)

[Claims] 1. An outer box having an opening on the upper surface and having a side wall and a bottom wall in the shape of a box, a plate-shaped heat insulating inner wall member disposed adjacent to the side wall, and placed on the bottom wall. In a cold insulation box comprising a plate-shaped heat-insulating inner bottom material and a plate-shaped heat-insulating lid material that closes the opening, a joint piece facing the side wall and joined, and the opening from the upper end of the joint piece An edge member formed of an upper surface portion that extends inwardly of the base member and is in contact with the lid member, and a hook piece that bends downward from the upper surface portion, and the upper surface portion is provided on the inner periphery above the side wall. The edge member is joined and fixed to the side wall so as to have substantially the same height along the above, and the upper end surface of the heat insulating inner wall member is fitted into the U-shaped space formed by the joining piece and the hook piece. Cooling characterized in that the heat insulating inner wall material is joined and fixed to the side wall by joining, and the opening is closed by placing the heat insulating lid material on the upper surface portion. . 2. An outer box having an opening on the top surface and having a side wall and a bottom wall in the shape of a box, a plate-shaped heat-insulating inner wall member disposed adjacent to the side wall, and placed on the bottom wall. A heat insulating box provided with a plate-shaped heat-insulating inner bottom material and a plate-shaped heat-insulating lid material that closes the opening, and a joining piece to be joined facing the side wall, and the opening from the middle of the joining piece An edge member formed of an upper surface portion that extends inwardly of the base member and is in contact with the lid member, and a hook piece that bends downward from the upper surface portion, and the upper surface portion is provided on the inner periphery above the side wall. The edge member is joined and fixed to the side wall so as to have substantially the same height along the above, and the upper end surface of the heat insulating inner wall member is fitted into the U-shaped space formed by the joining piece and the hook piece. Cooling characterized in that the heat insulating inner wall material is joined and fixed to the side wall by joining, and the opening is closed by placing the heat insulating lid material on the upper surface portion. . 3. The cold insulation box according to claim 1, wherein the joining piece of the edge member is extended downward. 4. The cold insulation box according to claim 1, wherein a lower end of the hook piece of the edge member is inclined in the joining piece direction. 5. The cold insulation box according to claim 1, wherein the heat insulating inner wall material and the heat insulating inner bottom material are detachable. 6. The outer box has flexibility, and the edge member provided on one side of the opening of the outer box is divided into a plurality of parts. Insulated box of either.