JP3026329B2 - Insulated box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated box that can be assembled and folded with one touch.

[0002]

2. Description of the Related Art As a conventional heat insulation box for heat-insulating various products, a heat insulation box made of a synthetic resin such as expanded styrene is generally known. Although this resin box has excellent features of waterproofness and heat insulation, it has the following problems.

[0003] First, the resin used as the raw material of the resin box requires a large amount of petroleum resources, and thus has a problem of depleting petroleum resources. Second, when a used resin box is discarded, it is incinerated or buried. However, when the resin box is incinerated, there is a problem that the natural environment is destroyed due to generation of toxic gas and the like. In addition, in the case of burial disposal, it takes a long time for the resin to decompose in the soil, so that the disposal efficiency is extremely poor and there is a problem of destroying the natural environment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to provide an insulated box which can insulate and store products for a long time. .

Another object of the present invention is to provide an insulated box that can be assembled and folded with one touch.

[0006]

[Means for Solving the Problems] Therefore, claim 1
A pair of first frames that can be bent into a square frame shape facing each other
And a first bottom plate, which is formed integrally with a lower part of each first side plate so as to be able to be bent, and is formed integrally with a lower part of each second side plate so as to be overlapped and engageable with each other. An outer box having a second bottom plate adhered to an end of the first bottom plate whose portion is located outside the fold;
First and second top surfaces extending horizontally outward with a predetermined width above the first and second inner plates facing each other in the side plate, and first and second top surfaces extending from the top of the first and second top surfaces. An inner frame having first and second hanging portions that hang down along the inner surface of the second side plate, wherein the first and second side plates, the first and second inner plates, The first and second top surface portions located between the first and second top surface portions can form a gap substantially matching the width of the first and second top surface portions, while each of the first and second top surface portions is inserted with the inner frame inserted into the outer box. When the bottom plate is pushed up, the outer box is moved to the first and second boxes.
The present invention is characterized in that the inner frame can be integrally folded into a flat shape at the boundary between the side plates and at the boundary between the first and second inner plates while standing the first and second top surfaces.

A second aspect of the present invention provides a pair of first and second side plates which can be bent in a rectangular frame shape facing each other.
A first and second top surface portion extending inward in the horizontal direction and a first and second hanging portion hanging down from the first and second top surface portions, the first and second top surface portions extending inward in the horizontal direction; A first bottom plate is formed integrally with a lower portion of the first side plate so as to be foldable and can be engaged with each other by overlapping with each other. An outer box having a second bottom plate adhered to an end of the first bottom plate, and a rectangular frame shape large enough to be inserted into the outer box, facing the first and second side plates, respectively. A foldable inner frame having first and second inner plates with which the first and second hanging plates abut, and the first and second side plates and the first side plate are inserted when the inner frame is inserted into the outer box. Between the first and second top surfaces by the first and second top surfaces located between the first and second inner plates. While allowing formation of the outer box when the slide each first bottom plate in a state in which the inner frame and inserted into the outer box upward, while being erected first and second top wall first
And the inner frame can be integrally folded into a flat shape at the boundary between the second side plate and the boundary between the first and second inner plates.

[0008]

According to the first aspect of the present invention, the first side plate and the second side plate are separated from each other with the inner frame inserted into the outer box folded flat. Then, the first bottom plates which are spread in a plane engage with each other to form the outer box into a box shape. The inner frame is formed in a box shape by the first and second inner plates separated from each other by the above operation. In this state, if the first and second top surfaces of the upright inner frame are made flat, the first and second hanging portions abut against the inner surfaces of the first and second side plates of the outer box, and the inner box of the outer box becomes inner. A gap having a width substantially corresponding to the first and second top surfaces is formed between the frame and the frame. Each gap is held by the first and second top surfaces.

In the assembled state, when the first and second side plates of the outer box and the first and second inner plates of the inner frame are bent toward each other while pushing the first bottom plate upward,
The first through the hanging part which contacts the inner surface of the first and second side plates.
And the first and second top surfaces are erected upward and the first and second
With the bottom plate positioned on the inner surface of the inner frame, the bottom plate stands up and is folded into a flat state.

Further, according to the invention of claim 2, when the first side plate and the second side plate are pushed out so that they are separated from each other in a state where the inner frame is inserted into the outer box folded in a flat shape, a flat shape is obtained. The first bottom plates that are spread out are engaged with each other to form the outer box into a box shape. In this state, when the first and second top surfaces of the outer box standing up are made flat, the first and second hanging portions abut against the outer surfaces of the first and second inner plates of the inner frame, and A gap having a width substantially matching the first and second top surfaces is formed between the inner frame and the inner frame. Each gap is kept substantially constant by the first and second top surfaces.

When the first and second side plates of the outer box and the first and second inner plates of the inner frame are bent toward each other while pushing up the first bottom plate in the assembled state,
The first and second top surfaces are erected upward through the hanging portions abutting the first and second inner plates, and are erected upward with the first and second bottom plates positioned on the inner surface of the inner frame to be flat. Folded into a state.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view in which the outer box of the heat insulating box is partially cut away.

FIG. 2 is a development view of the outer box.

FIG. 3 is an expanded view of the inner frame.

FIG. 4 is a perspective view of the heat insulating box.

FIG. 5 is a vertical sectional view taken along the line V-V of the heat insulation box.

The heat insulating box 1 is composed of an outer box 3 and an inner frame 5, and the outer box 3 and the inner frame 5 are made of cardboard or thick paperboard such as kraft paper.

As shown in FIG. 2, the first side plate 7 and the second side plate 9 of the outer box 3 are alternately continuous in the lateral direction, and each of them is integrally formed so as to be bendable. An adhesive piece 11 is integrally formed on the right end line.

At the lower end of each first side plate 7, a first bottom plate 13 is provided.
It is bendable and integrally formed with a width where the ends overlap. The notch 1 is provided in the middle of each first bottom plate 13.
5, and a fold 17 is formed at one end. In addition, a cut 19 is formed in one first bottom plate 13 corresponding to the cutout 15, and a cutout remaining portion 13 a of the other first bottom plate 13 is formed so as to be insertable.

At the lower end of each first side plate 7, a triangular second bottom plate 21 is integrally formed so as to be bendable. And the first
The side plate 7 and the second side plate 9 are bent into a frame shape to bond the bonding piece 11 to the end of the second side plate 9 and bond the bonding portion of each first bottom plate 13 located outside the fold 17 to the second bottom plate 21. I do. At this time, each of the first bottom plates 13 is engaged with the notch remaining portions 13a at the ends thereof, and one of the notch remaining portions 13a is inserted into the notch 19, thereby assembling into a box with a bottom.

The first and second inner plates 23 and 25 of the inner frame 5 are
As shown in FIG. 3, each is bendable, integrally formed so as to be alternately continuous in the lateral direction, and an adhesive 27 is integrally formed on the right end of the second inner plate 25 so as to be bendable.

The first and second top surfaces 29 and 31 are formed on the first and second inner plates 23 and 25 so as to coincide with the gaps 33 and 35 to be formed between the first and second inner plates 23 and 25 and the inner surface of the outer box 3. The first and second hanging portions 37 and 39 are integrally formed at the ends of the first and second top surface portions 29 and 31 so as to be bent.

Then, after the first and second inner plates 23 and 25 are bent into a rectangular frame shape and the adhesive pieces 27 are bonded to the ends of the first inner plates 23, the upper portions of the first and second inner plates 23 and 25 are formed. Then, the first and second top surfaces 29 and 31 are folded outward in the horizontal direction, and the first and second hanging portions 37 and 39 are hung to assemble the inner frame 5 into a square frame shape.

FIG. 6 is a perspective view showing a folded state.

FIG. 7 is a longitudinal sectional view taken along the line vii-vii in FIG.

The heat insulating box 1 is formed by inserting the inner frame 5 into the outer box 3 assembled as described above. At this time, outer box 3
Of the first and second side plates 7, 9 and the first and second
The first and second top surfaces 29 are provided between the inner plates 23 and 25 and the outer surfaces thereof.
31 form gaps 33 and 35, and the first
The gaps 33 and 35 are maintained at a predetermined width by the first and second hanging plates 37 and 39 of the inner frame 5 that are in contact with the inner surfaces of the second side plates 7 and 9.

After the product is stored in the inner frame 5 of the assembled heat insulating box 1, if necessary, an insole plate is provided on the heat insulating box 1 and a lid (both not shown) is attached to the heat insulating box 1. 1 is closed at the upper end opening. At this time, the product housed inside is insulated from the outside air by the air layer formed by the gaps 33 and 35, so that the product can be kept in a state where the temperature change is small for a long time.

When each of the first bottom plates 13 is pushed upward in a state where the inner frame 5 is inserted into the outer case 3 and the mutual engagement state is released, the first side plates 7 of the outer case 3 and The second side plate 9 and the first and second inner plates 23 and 25 of the inner frame 5 are folded flat and close to each other. At this time, the first and second bottom plates 13 and 21 rise along the inner surfaces of the first and second inner plates 23 and 25 along with the folding of the outer box 3, and the first and second bottom plates 13 and 21 rise.
With the hanging parts 37 and 39 abutting on the inner surfaces of the first and second side plates 7 and 9, the first and second top surfaces 29 and 31 stand up and the heat insulating box 1 is folded flat.

FIG. 8 is an exploded perspective view in which the outer box of the heat insulating box is partially cut away.

FIG. 9 is a perspective view of the assembled heat insulation box.

FIG. 10 is a vertical sectional view taken along the line XX of FIG.

The heat-insulating box 81 comprises an outer box 83 and an inner frame 85, and the outer box 83 and the inner frame 85 are made of corrugated paper or paperboard as in the case of the first embodiment. .

First and second top surfaces 91 and 93 can be bent inwardly on the upper portions of the first and second side plates 87 and 89 of the outer box 83 and are to be formed between the first and second side plates 87 and 89 and the outer surface of the inner frame 85. Are formed integrally with a width corresponding to the gaps 95 and 97.
The first and second top surfaces 91 and 93 have the first and second top surfaces 91 and 93, respectively.
The hanging parts 99 and 101 are integrally formed so as to be bendable.

Since the other structure is the same as that of the outer case 3 of the first aspect, the same reference numerals are given and the description is omitted.

Further, the inner frame 85 is formed from the upper part of the first and second inner plates 23 and 25 in the inner frame 5 of the first aspect.
And the second top surface portions 29 and 31 and the first and second hanging portions 37.
Since the configuration is such that 39 is omitted, the same reference numerals are given and the description thereof is omitted.

FIG. 11 is a perspective view showing a folded state.

FIG. 12 is a vertical sectional view taken along the line xii-xii in FIG.

The heat insulating box 81 is formed by inserting the inner frame 85 into the outer box 83 assembled in a box shape. At this time, the first and second top surfaces 91.9 of the outer box 83
3 extends inward in the horizontal direction, and the first and second hanging parts 99 and 101 correspond to the first and second inner plates 23.2 of the inner frame 85.
5 The gaps 95 and 97 between the two are kept constant by contacting the outer surface.

Further, when the first bottom plates 13 are pushed upward in the above state to disengage each other, the outer box 83 and the inner frame 85 are folded flat. At this time,
The first and second hanging parts 99 and 101 of the outer box 83 are
The first and second top surfaces 91 and 93 stand upright in contact with the outer surfaces of the first and second inner plates 23 and 25, and are folded flat.

In the above description, the heat insulating boxes 1 and 81 are constructed by directly inserting the inner frames 5.85 into the outer boxes 3.83.
After inserting the inner frame 5.85 into the outer box 3.8, the outer box 3.8
A resin air mat having a large number of bubble bags or a thick corrugated cardboard may be disposed on the bottom surface of the third member 3 to enhance heat insulation.

As shown in FIG. 13 (FIG. 13 shows only a modified example of the inner frame 5, but the same applies to a modified example of the inner frame 85, the illustration is omitted). Bottom plates 131 each having a half of the width of the second inner plate 25 are integrally formed at the lower end of the first inner plate 23 so as to be bendable, and when the inner frame 5 is inserted into the outer box 3, each bottom plate 131 is attached. The heat insulating property may be enhanced by making the bottom surface of the heat insulating box 1 in a flat shape to have a double structure. The bottom plate 131 is automatically folded along the inner surface of the first inner plate 23 of the inner frame 5 when the heat insulating box 1 is folded flat, so that the heat insulating box 1 can be folded.

In the above description, the products are directly stored in the inner frames 5 and 85 inserted into the outer boxes 3 and 83. However, when the products containing water are stored, the inner frames 5 and 85 are not used. The product can be waterproofly and heat-insulated and housed by foldably attaching a synthetic resin bag inside 85.

The above explanation is based on the assumption that the inner frames 5.8
5 were inserted into each other when they were inserted.
(FIG. 14 shows the relationship between the outer box 3 and the inner frame 5, but the same applies to the relationship between the outer box 83 and the inner frame 85.
Illustration is omitted. ), The height of the inner frame 5 with respect to the height of the outer box 3 is set when the lid is attached.
When the insole plate 141 is inserted into the upper part of the outer box 3 in which the inner frame 5 is inserted, the insole plate 141 and the upper end of the inner frame 5 are flush with each other. .

In the above description, the upper and lower widths of the first and second hanging portions 37 and 39 and 99 and 101 in the inner frame 5 and 85 are set to the first width.
Although the height is substantially equal to the height of the second inner plates 23 and 25, the height may be shortened. In this case, the material yield can be improved.

[0046]

According to the present invention, the product can be housed insulated for a long time.

Further, assembly and folding can be performed with one touch.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view in which an outer box of a heat insulating box is partially broken.

FIG. 2 is a development view of an outer box.

FIG. 3 is a development view of an inner frame.

FIG. 4 is a perspective view of a heat insulating box.

FIG. 5 is a vertical sectional view taken along line VV of the heat insulating box.

FIG. 6 is a perspective view showing a folded state.

FIG. 7 is a vertical sectional view taken along the line vii-vii in FIG. 6;

FIG. 8 is an exploded perspective view in which an outer box of the heat insulating box is partially broken.

FIG. 9 is a perspective view of the assembled heat insulation box.

FIG. 10 is a vertical sectional view taken along line XX of FIG. 9;

FIG. 11 is a perspective view showing a folded state.

FIG. 12 is a vertical sectional view taken along line xii-xii in FIG. 11;

FIG. 13 is a perspective view showing a modified embodiment of the present invention.

FIG. 14 is a longitudinal sectional view showing a modified embodiment of the present invention.

[Description of Signs] 1 Insulated box 3 Outer box 5 Inner frame 7 First side plate 9 Second side plate 13 First bottom plate 17 Fold 21 Second bottom plate 23 First inner plate 25 Second inner plate 29 First top surface 31 Second Top surface part 33 Gap 35 Gap 37 First hanging part 39 Second hanging part

Claims (7)

(57) [Claims] 1. A pair of first and second side plates that can be bent into a rectangular frame shape facing each other, and are formed integrally below each first side plate so as to be bent, and can be overlapped and engaged with each other. An outer box having a first bottom plate and a second bottom plate integrally formed so as to be able to bend at a lower portion of each of the second side plates and partially bonded to an end of the first bottom plate located outside the fold;
First and second top surfaces extending horizontally outward with a predetermined width above the first and second inner plates facing each other in the first and second side plates, and upper portions of the first and second top surfaces From the first and second
An inner frame having first and second hanging portions that hang down along the inner surface of the side plate.
And a first side plate located between the second side plate and the first and second inner plates.
When the first bottom plate is pushed upward while the inner frame is inserted into the outer box, the gap between the first top plate and the second top surface can be formed substantially in accordance with the width of the first and second top surfaces. The outer box can be folded into a flat shape integrally at the boundary between the first and second side plates and at the boundary between the first and second inner plates while the first and second top surfaces are raised. Insulated box. 2. A pair of first and second side plates that can be bent into a square frame shape facing each other, and are integrally formed on the first and second side plates so as to be bent and extend inward in the horizontal direction. The first and second top surfaces and the first and second hanging portions hanging from the first and second top surfaces are respectively formed integrally with the lower portion of the first side plate so as to be bendable. Outer box having a possible first bottom plate and a second bottom plate integrally formed so as to be able to bend at the lower part of each second side plate and partially bonded to an end of the first bottom plate located outside the fold And a rectangular frame having a size that can be inserted into the outer box,
And a foldable inner frame having first and second inner plates that are respectively opposed to the first and second hanging plates in opposition to the second side plate, and when the inner frame is inserted into the outer box, The first and second top surfaces located between the first and second side plates and the first and second inner plates allow for the formation of a gap substantially matching the width of the first and second top surfaces while the outer surface When each first bottom plate is pushed upward with the inner frame inserted into the box, the outer box is moved to the first position.
And a heat insulation box in which the inner frame can be folded into a flat shape integrally at the boundary between the first and second side plates while the second top surface is raised, and at the boundary between the first and second inner plates. 3. The heat insulating box according to claim 1, wherein the outer box and the inner frame are made of corrugated paper. 4. An outer box and an inner frame are made of paperboard.
Or 2 insulated boxes. 5. The heat insulating box according to claim 1, wherein at least one of the outer box and the inner frame is made of corrugated paper and the other is made of paperboard. 6. The heat insulating box according to claim 1, wherein the inner frame has a height slightly lower than that of the outer box so that an insole plate for covering the upper opening can be inserted. 7. The heat insulating box according to claim 1, wherein a bottom plate having a length of not more than half the width of the second inner plate is integrally formed under each of the first inner plates of the inner frame so as to be bent. .