JP2002332026A - Paper cold insulation box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper cold insulation box preferable in the case of transporting fishes of the like with ices, in particular, in which it has a superior cold insulation power, strength and durability similar to those of a synthetic resin box, it has also a superior shock absorbing characteristic and has no fear of water leakage even if ices stored together with marine products such as fishes and shells or the like are resolved. SOLUTION: Cold insulating spaces 9, 10 are secured by outer plates 3, 4 raised from four sides of a bottom plate 2 of a box main body (a) bent and assembled from a sheet base material 1, and by inner plates 7, 8 bent downwardly from the inner ends of upper edge plates 5, 6. Further, four corners of the bottom plate, a water-proof cooperative plates 9 arranged from both ends of forward, rearward, rightward or leftward outer plates 7, 8 and reinforcing plates 21 cooperatively arranged from both ends of the forward or rearward inner plates 7, 8... are assembled while being stored in the aforesaid space 10, and a strength of the box main body (a) is kept and a water leakage is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated box made of paper for transporting and storing marine products such as fish and shellfish, and other perishables such as other vegetables and fruits, and more particularly to paper boxes such as corrugated paper and cardboard. The present invention relates to a simple assembling-type paper cool box made of a sheet material.

[0002]

2. Description of the Related Art A synthetic resin made of urethane foam or styrofoam is used as a cold storage box for maintaining freshness when transporting marine products such as fish and shellfish, and protecting against a stacking load during storage and a drop impact during transportation. Cold storage boxes are widely used.

[0003] This synthetic resin cold box is excellent in cold insulation, strength, durability, shock absorption, etc.
At the time of treatment after use, there is a concern that it may have an adverse effect on the environment, and it is difficult to recycle. Therefore, as an alternative to the synthetic resin cold box, a paper cold box assembled with corrugated paper or the like has been proposed.

[0004]

However, this paper cold box is inferior to the above-mentioned synthetic resin cold box in terms of cooling performance, durability, and shock absorption.
Effects that are satisfactory for practical use have not been obtained. For example,
As known in JP-A-173488 and the like, a means such as filling a gap between an inner surface plate and an outer surface plate with a two-layer wall structure with styrofoam for cooling and reinforcing has been adopted.

[0005] The present invention has been made in view of such a conventional situation, and its object is to provide a heat insulation function, strength, durability, and shock absorption similar to those of a synthetic resin heat insulation box. Excellent paper pressure strength, and also suitable for transporting fish and shellfish using ice, etc., even if ice contained in marine products such as fish and shellfish melts, there is no risk of water leakage. An object of the present invention is to provide a cold storage box.

[0006]

SUMMARY OF THE INVENTION In order to achieve the object, the present invention provides a box body (a) which is folded and assembled from a single sheet base made of a paper board having water resistance and water repellency, and a paper. And a lid (b) made of a plate material,
The box body (a) includes a rectangular bottom plate (2), outer plates (3, 4) rising from four sides of the bottom plate, and upper edge plates (5, 6) bent inward from the upper ends of the respective outer plates. Inner plates (7, 8) that bend downward from the inner ends of the upper edge plates, and are connected to the corners at the four corners of the bottom plate from both ends of the front, rear, left, and right outer plates. And a reinforcing plate (21 ...) that bends inward from both sides of the front and rear inner plates, and the water leakage preventing connecting plate and the reinforcing plate are left and right. This is a paper cold box formed so as to maintain the strength of the box body (a) and prevent water leakage by being housed in the cold space (10) secured between the inner and outer face plates.

[0007] According to such a configuration, the peripheral walls having the cool spaces (9, 10) secured by the front, rear, left and right inner and outer panels (7, 3, 8, 4) are formed on the four sides of the bottom plate (2). And
The peripheral wall, including the four corners of the bottom plate, has a length substantially equal to the width direction of the front, rear, left and right outer plates (3, 4), and is provided continuously from both ends thereof in order to prevent water leakage. Because of the integral wall structure surrounded by the plates (19 ...), it has an excellent cold insulation function and does not have to worry about water leakage even if the ice contained with marine products such as fish and shellfish is melted.

In the present invention, the water leakage preventing connecting plate (19 ...) according to the above-mentioned claim 1 is connected to the front, rear, left and right outer plates (3, 4).
Are connected to each of the outer plates at a length substantially the same as the width direction of the outer plate (7) from the broken lines (24...) Provided diagonally from the four corners of the bottom plate (2). , 8) is a paper cold box formed so as to be housed in the cold space (10) in a state of being folded and superimposed when folded and raised. The reinforcing plate (21...) According to claim 1 or 2 has a width substantially the same as the width direction of the front and rear inner plates (7) and is substantially the same as the length direction of the left and right inner plates (8). It is formed so as to be housed in the cold insulation space (10) in a state where the opposite ends (21a) facing each other when folded inward are abutted with each other at approximately half the length thereof. It is a paper cold box characterized by becoming.

According to this configuration, in addition to the water leakage prevention due to the surrounding integral wall structure surrounded by the water leakage prevention connecting plate (19 ...), the cold insulation space (10)
In the state, the water leakage prevention continuous plate (19…) is folded in two from each diagonal broken line (24…) and overlapped,
Moreover, since the reinforcing plates (21...) Having a width substantially the same as the width direction of the inner surface plate (7) are accommodated in a state where the opposing ends (21a) facing each other are abutted against each other, the cooling space ( 10) is secured, and the box body (a) is held and strengthened. That is, it is possible to assemble the box main body (a) having a wall structure having enhanced wall pressure strength in storing and transporting several or tens of stacked pieces, and having excellent durability and shock absorption.

According to the present invention, the lower edge of the front, rear, left and right inner plates (7, 8) according to any one of claims 1 to 3 is substantially the same as the width direction of the upper edge plate (5, 6). By providing insertion pieces (22, 23) that bend at the width of, and bending outward along the bottom plate (2), the respective inner plates (7,
8) Holding the folded state downward, and keeping the cool space (9, 1
0) is a paper cold box formed so as to be secured in a longitudinal cross-section by front and rear inner and outer panels (7, 3, 8, 4) and upper edge panels (5, 6).

According to such a configuration, the cold storage space (9, 10)
Is secured in a vertical cross-sectional shape by the inner and outer panels (7, 3, 8, 4), the upper edge panels 5, 6 and the insert pieces (22, 23). (19…) and reinforcing plate (21
..) Further strengthens the product pressure strength of the box body (a).

Also, in the present invention, a joint which passes through the cold insulation space (9) is provided at the boundary between the front and rear inner plates (7) and the reinforcing plates (21) on both sides thereof according to any one of the above-mentioned claims 1 to 4. Parts (29), and connecting piece parts (30) are provided on both side ends of the left and right inner face plates (8) so that the front, rear, left and right inner face plates (7,
8) is a paper cold box formed such that the engaging pieces are inserted into and engaged with the engaging portions when the upper edge plates are bent downward from the inner ends of the upper edge plates (5, 6).

According to such a configuration, the left and right inner plates (8)
By inserting and engaging the engagement pieces (30) at both ends with the engagement portions (29) opened at both sides of the front and rear inner plates (7), the engagement pieces (30) from the inner edge of the upper end plate (6) are The downwardly bent state is maintained, and the assembled state of the box body (a) is maintained by a series of connections between the front, rear, left and right inner face plates (7, 8).

[0014]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded view of a box body a showing an example of an embodiment of the paper cool box of the present invention. The box body a is a sheet base made of a paper board material, for example, corrugated paper having water resistance and water repellency. 1 is formed by stamping out and providing a plurality of bent lines inwardly and outwardly at a plurality of required parts.

As shown in FIG. 1, a sheet substrate 1 includes a bottom plate 2 having a rectangular shape in a plane, front and rear left and right outer plates 3 and 4 rising from broken lines 11 and 12 of four sides of the bottom plate 2, respectively. Upper edge plates 5 and 6 which are bent inward from upper end broken lines 13 and 14 of outer surface plates 3 and 4 and inner edge broken lines of upper edge plates 5 and 6 respectively.
Front and rear left and right inner plates 7, which are bent downward from 15, 16 to secure cooling spaces 9, 10 between the front and rear outer plates 3, 4
8

The sheet substrate 1 is provided at the four corners of the bottom plate 2 at the four corners of the bottom plate 2 and on both side edges 17 and 18 of the front and rear outer plates 3 and 4 to prevent water leakage from being bent inward. The continuous plate 19, and the front and rear inner plates 7,
8 has a reinforcing plate 21 which is bent inwardly from a bent line 20 at both ends, and a cold insulation space 10 which is secured between the left and right inner and outer face plates 8 and 4 by connecting the water leakage preventing continuous plate 19 and the reinforcing plate 21 to each other. , So that the strength of the box body a is maintained and water leakage is prevented. Also, the sheet base 1 is
Insert pieces 22, 23 that bend from lower edge broken lines 27, 28 of the front, rear, left and right inner plates 7, 8 with a width substantially equal to the width direction of the upper edge plates 5, 6 are provided. , 23 are bent outward along the bottom plate 1 and inserted into the bottoms of the cold storage spaces 9, 10, thereby holding the inner plates 7, 8 in a downwardly bent state, and connecting the cold storage spaces 9, 10 to the inner and outer surface plates. 7,3,
By forming a vertical cross-section surrounding shape by the upper and lower edge plates 8 and 4, the above-described water leakage preventing connecting plates 19 and the reinforcing plates 21 further strengthen the product pressure strength. .

The water leakage preventing connecting plates 19 are integrated with the front and rear left and right outer plates 3 and 4, including the four corners of the bottom plate 2, integrally rising from the four-side bent lines 11 and 12 of the bottom plate 2. To prevent water leakage from inside the box body a to the outside. Then, by being accommodated in the cool insulating space 10 secured between the left and right inner and outer face plates 8, 4, the strength of the cool insulating space 10 in the height direction is enhanced. The water leakage preventing connecting plates 19 are connected to the outer plates 3 and 4 at a length substantially equal to the width direction of the front and rear left and right outer plates 3 and 4 and are provided at four corners of the bottom plate 2. Diagonal polygonal line 24 on the diagonal line from ...
It is formed so that it can be accommodated in the cold insulation space 10 by being folded inward and folded inward so as to be superposed.

The reinforcing plates 21 are accommodated in the cold insulating space 10 secured between the left and right inner and outer face plates 8 and 4 to enhance the strength of the cold insulating space 10 in the height direction (enhancing the product pressure strength). ) At the same time, the short side direction of the opening of the box body a is shifted to the left and right inner and outer face plates 8 and 4.
Together with the fixed form. The reinforcing plates 21 are connected to the front and rear inner plates 7 with a width substantially the same as the width direction of the front and rear inner plates 7 and 8 and substantially a half of the length direction of the left and right inner plates 8. Are formed in such a manner that the opposing ends 21a that face each other when folded inward can be accommodated in the cold insulation space 10 in a state where they face each other (see FIG. 6). In addition, holding pieces 26 that are bent outward from the upper edge broken lines 25 of the reinforcing plates 21 with a width substantially equal to the width direction of the upper edge plate 6 are continuously provided, and are accommodated in the cold insulation space 10. As a result, the reinforcing plate 21 ...
In addition, it is formed so as to secure and maintain the cooling space 10 (see FIG. 8).

In the figure, reference numerals 29... Denote connecting portions provided at the boundary between the front and rear inner face plates 7 and the reinforcing plates 21 on both sides thereof, that is, at a part along the broken line 20 so as to pass through the cold insulation space 9. The connecting pieces 30 provided on both side ends of the left and right inner face plates 8 are connected to the front and rear left and right inner face plates 7, 8 by the inner end broken lines 15 of the upper edge plates 5, 6.
It is formed so that it can be inserted and locked (coupled) when it is bent downward from 16.

Next, a procedure for assembling the box body a using the sheet base material 1 configured as described above will be described. First, from the state of the developed view shown in FIG. 1, as shown in FIG. 2, the insertion piece 22 is bent from the lower edge broken line 27 of the front and rear inner plates 7, and the inner plate 7 is connected to the upper edge plate 5. Inner edge broken line 15
After the upper edge plate 5 is bent from the upper edge bent line 13 of the front and rear outer plates 3, the outer surface plate 3 is bent up from the front / rear bent line 11 of the bottom plate 2. At this time, the above-mentioned insertion piece 22 bent from the lower edge broken line 27 of the front and rear inner plates 7 is inserted along the bottom plate 2 into the bottom of the cool insulation space 9 secured between the front and rear inner and outer plates 7, 3. Thus, the downwardly bent state of the front and rear inner plates 7 is maintained by the insertion piece portion 22, and the cold insulation space 9 is secured between the front and rear inner and outer plates 7 and 3 (see FIG. 7).

Next, each holding piece 26 is bent outward from the upper edge broken line 25 of each reinforcing plate 21.
.. Are bent inward from the both-side end bent lines 20 of the front and rear inner face plates 7. Thereby, as shown in FIG.
An engaging portion 29 is provided at the bottom plate portion along the broken line 20 of the
Are opened, and the opposing ends 21a of the reinforcing plate 21 bent inwardly from the both-side end broken lines 20 of the front and rear inner face plates 7 face each other.

Next, as shown in FIG. 3, the water leakage preventing connecting plate 19 is inwardly bent from both side end broken lines 17 of the front and rear outer plates 3, and is folded at the diagonal broken line 24 so as to be overlapped. The left and right outer plates 4 are connected to the left and right
Fold up from. As a result, as shown in FIG. 6 and FIG. 7, the water leakage preventing connecting plate 19 connected to the front, rear, left and right outer plates 3, 4 has a height substantially equal to that of the outer plates 3, 4. In a state of being folded and overlapped from the square fold line 24, it is located outside the above-mentioned reinforcing plate 21, which is already standing, with the opposing ends 21 a abutting each other, and is housed in the left and right cold insulation spaces 10.

Next, as shown in FIG. 4, the insertion piece 23 is bent from the lower edge broken line 28 of the left and right inner plates 8, and
The upper edge plate 6 is bent inward from the upper bent line 14 of the left and right outer plates 4, and then the left and right inner plate 8 is bent downward from the inner broken line 16 of the upper edge plate 6. At this time, the left and right inner plates 8
The insertion piece 23 bent from the lower edge bent line 28 is accommodated in the bottom of the cool insulation space 10 secured between the left and right inner and outer face plates 8 and 4 from the lower edge of the reinforcing plate 21 along the bottom plate 2 and By inserting and locking the engaging pieces 30 on both sides of the inner plate 8 with the engaging portions 29 opened on both sides of the front and rear inner plates 7, the cold insulation space 10 is formed between the left and right inner and outer plates 8, 4. Is secured, and the assembly of the box body a is completed. That is, the downwardly bent state of the left and right inner face plates 8 is maintained by the insertion pieces 23, and this state is maintained by the engagement pieces on both side ends of the inner face plates 8.
The state in which 30 is securely maintained by the locking force inserted and locked in the above-mentioned engaging portion 29 (the state in FIGS. 6, 7 and 8).
Thus, the assembly of the box main body a is completed (see FIG. 5).

The above-described procedure for assembling the box body a is merely an example, and the present invention is not limited to this.

The lid b is formed by stamping and forming the above-mentioned corrugated cardboard having water resistance and water repellency so as to cover the opening of the box body a. Has an edge piece 32 that fits the outer peripheral edge of the opening of the box body a,
Further, on the back side of the lid portion 31, there is provided a fitting portion 33 formed by attaching one or several sheets of the above-mentioned corrugated cardboard having substantially the same size as the inner size of the box body a. The box body a is formed so as to be hermetically covered by 33 (see the two-dot chain line in FIGS. 5, 7 and 8). Although illustration is omitted,
Of course, it is also possible to secure a cool space between the cover portion 31 and the fitting portion 33 of the cover b so as to improve the cool function (capability) as in the case of the box body a.

[0026]

The paper cool box of the present invention has the following functions and effects because it is constructed as described above. . ADVANTAGE OF THE INVENTION According to this invention, the surrounding wall part which has a cold insulation space is formed in the four sides of a bottom plate, and this peripheral wall part includes the water leak connected from both sides of the front, rear, right and left outer plate including the four corner corners of the bottom plate. The integrated wall structure, which is surrounded by a series of prevention plates, has a cooling function, and there is no risk of water leakage even if the ice contained with marine products such as fish and shellfish melts. It can be suitably used for transportation of fish and shellfishes and the like which are transported in a container.

[0027] According to the present invention, in addition to the above, in addition to the above, the water leakage preventing continuous plate is folded in two from each diagonal bent line and overlapped, and the opposite ends where the reinforcing plate faces each other are By being housed in abutted condition, it is possible to reliably secure a cool space and to strengthen and hold the box body. In other words, it is possible to assemble a box body having a wall structure having enhanced wall pressure strength when storing or transporting several or dozens of them in piles, and having excellent durability and shock absorption.

[0028] Further, according to the present invention, since the cold storage space is secured in a longitudinal cross-sectional shape by the front and rear inner and outer surface plates and the upper edge plate, and the insertion piece portion, the above-described water leakage prevention continuous plate and the reinforcing plate are used. It is possible to secure the cold insulation space and further strengthen the pressure of the box body.

[0029] Further, according to the present invention, the engagement pieces on both sides of the left and right inner plates are inserted into and engaged with the engagement portions opened on both sides of the front and rear inner plates, so that the lower portions of the left and right inner plates are below. The folded state of the box body is maintained, and furthermore, the series of connections between the front, rear, left, and right inner face plates is performed, so that the assembled state of the box body can be reliably maintained in a fixed form.

Therefore, according to the present invention, it is easy to dispose or recycle after use, but at the same level of cooling function, strength, durability, shock absorption, and pressure strength as a conventional synthetic resin cold box. In addition, it is possible to provide a paper cold box that can be suitably used for transporting marine products such as fish and shellfish using ice, in particular, without fear of water leakage.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a box body showing an example of an embodiment of a paper cool box of the present invention.

FIG. 2 is a perspective view showing the procedure for assembling the box body.

FIG. 3 is a perspective view showing the procedure for assembling the box body.

FIG. 4 is a perspective view showing the procedure for assembling the box body.

FIG. 5 is a perspective view showing a box body and a lid which have been assembled.

FIG. 6 is a cross-sectional plan view showing an enlarged part of the box body.

FIG. 7 is a side view of the same longitudinal section, with a part cut away further.

FIG. 8 is a longitudinal sectional front view showing a part of the same.

[Explanation of symbols]

 a: Box body 1: Sheet base material 2: Bottom plate 3, 4: Outer plate 5, 6: Upper edge plate 7, 8: Inner plate 9, 10: Cooling space 19 ...: Water leakage prevention continuous plate 21 ...: Reinforcing plate 21a: Opposite ends 22, 23: Insert piece 26 ...: Holding piece 29: Engagement part 30: Engagement piece b: Lid

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference) 3E060 AA03 AB15 AB20 BA24 BB05 BC04 CD04 CD12 DA30 EA06 EA12 3E067 AA11 AB02 AB08 AB09 AC01 BA06A BB02A BC06A CA07 EA32 EC04 EC12 ED04 EE50 FA01 FC01 GA01 GA12 A08A08A08A083A023A CA01 CB03 CC03 DA01 DB11 DC03 FA06 FA09 FD09 GA08 GB08 LA02 LA05 LB02 LB07

Claims (5)

[Claims] 1. A box body (a) folded and assembled by one sheet substrate (1) made of paper board material,
The box body (a) comprises a rectangular bottom plate (2), outer plates (3, 4) rising from four sides of the bottom plate, and respective outer plates. An upper edge plate (5, 6) that is bent inward from the upper end of the bottom plate, and an inner surface plate (7, 8) that is bent downward from the inner end of each of the upper edge plates. And a water leakage prevention connecting plate (19 ...) that is connected to both ends of the front and rear outer plates (3, 4) and bent inward, and a reinforcement that bends inward from both ends of the front and rear inner plates (7). Board (21…)
By storing the water leakage prevention continuous plate and the reinforcing plate in the cold insulation space (10) secured between the left and right inner and outer surface plates,
A cold box made of paper, formed so as to maintain the strength of the box body and prevent water leakage. 2. The water leakage preventing connecting plate (19) according to claim 1,
…) Has a length substantially the same as the width direction of the front and rear left and right outer plates (3, 4), and is folded in a diagonal direction from the four corners of the bottom plate (2) and overlapped. Space (1
A cold box made of paper, which is formed so as to be accommodated together with a reinforcing plate (21) in (0). 3. The reinforcing plate (21) according to claim 1 or 2,
It has a width approximately the same as the width direction of the front and rear inner plates (7) and approximately half the length direction of the left and right inner plates (8),
Opposing ends (21
a) A cold box made of paper, which is formed so as to be housed in the cool space (10) in a state where the pieces are abutted with each other. 4. The front edge plate (5) from the lower edge of the front, rear, left and right inner face plates (7, 8) according to claim 1.
The insertion pieces (22, 23) that bend at a width substantially the same as the width direction of (6) are provided, and are bent outward along the bottom plate (2), so that the respective inner plates (7, 8) can be bent. Formed so as to maintain the downward bent state and to secure the cold insulation space (9, 10) in the longitudinal cross section by the front and rear inner and outer panels (7, 3, 8, 4) and the upper edge panels (5, 6). A cold box made of paper. 5. A connecting portion (29) is provided at a boundary between the front and rear inner plates (7) and the reinforcing plates (21...) On both sides thereof according to any one of claims 1 to 4, and a left and right inner plate is provided. Connecting pieces (30) are provided at both ends of the face plate (8), and the front and rear inner plates (7, 8) are bent downward from the inner ends of the upper edge plates (5, 6). A cold box made of paper, wherein the engagement piece is inserted into and engaged with the engagement portion.