JPH09202366A - Heat insulating container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To return back a heat insulating container in a compact condition when returning back only the container after the contents have been transported and reduce the returning-back cost and use it repeatedly as a so called coming and going case. SOLUTION: This container is constituted of a lower case 1 with the bottom made of a synthetic resin foam, a cylindrical middle case 2, and an upper cover 3. The first fixing parts 4 are provided at respective upper and lower opposite faces to detachably fit to each other and also the second fixing parts 5 are provided at the laterally opposite faces of the rear side plate, the right side plate, and the left side plate respectively to detachably fit to each other, in this heat insulating container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating container suitable for transporting cold foods such as fresh foods or carrying heat-retained foods.

[0002]

2. Description of the Related Art Conventionally, there is a heat insulating container made of foamed polystyrene or the like for accommodating an object to be kept cold such as fresh food or an object to be kept warm and transporting it to a required place. Since it is formed to be thick, it is not possible to increase the volume of the object to be accommodated inside, and if this is made into a heat-insulating container having a large accommodation volume, it naturally becomes bulky. When transporting the container to the required place and returning only the heat-insulated container, the container becomes bulky and the return cost becomes very high.Therefore, there is almost no merit to return and reuse the container, and it is unavoidable to dispose of it. Was.

The present invention has a large accommodation volume for accommodating an object to be solved in order to solve the above-mentioned problems, and therefore, even if it is a bulky heat-insulating container, it is possible to reduce the volume when returning it. The purpose is to propose this kind of heat insulating container.

[0004]

In order to achieve the above-mentioned object, the invention according to claim 1 has the bottomed bottom box formed of a foamed synthetic resin material, as indicated by the reference numerals shown in the embodiments. 1, a cylindrical inner box 2 and an upper lid 3, each of which has a first engaging portion 4 on its upper and lower opposing surfaces which engages with each other in a disengageable manner. The second engaging portion 5 that releasably engages the laterally opposed surfaces of the front side plate 2a, the rear side plate 2b, the right side plate 2c, and the left side plate 2d that form the
The present invention relates to a heat insulating container having:

In this invention, the bottomed bottom box 1 and the top lid 3 are provided.
Since the cylindrical inner box 2 is interposed between the two and they are coupled to each other, they are equivalent to the accommodating volumes of both the cylindrical middle box 2 and the bottomed lower box 1 continuous thereto. It is possible to accommodate a large volume of objects to be accommodated, and by engaging the upper lid 3 with the cylindrical middle box 2, it is possible to convey the large volume of objects to a required place in a cold or warm state. After transporting the contents to the required place and removing the upper lid 3 from the cylindrical inner box 2 to take out the contained object, the engagement state between the bottomed lower box 1 and the cylindrical middle box 2 is released, and Each side plate 2a to 2d of the middle box 2
The side plate 2a to 2d is overlapped to make it bulky, and these are accommodated in the bottomed bottom box 1, and the bottomed bottom box 1 is engaged with the top lid 3 to form the bottomed bottom box 1 It can be returned in the state of a low-volume heat-insulating container consisting of the upper lid 3 engaged with this.

The invention according to claim 2 provides the heat-insulating container according to claim 1, wherein the first and second engaging portions 4 and 5 comprise concave and convex engaging portions 6 and 7 which are alternately continuous in the longitudinal direction. It is related.

According to the present invention, the upper lid 3, the tubular middle box 2 and the bottomed lower box 1 are engaged with each other by the first engaging portion 4 and the side plates 2a to 2d forming the tubular middle box 2 are engaged with each other. The second engaging portion 5 to be mated is composed of the concave and convex engaging portions 6 and 7 which are alternately continuous in the longitudinal direction, so that the elastic state peculiar to the foamed synthetic resin can strongly maintain the engaged state with each other. Each member will not be disassembled due to vibration or shock.

According to a third aspect of the present invention, the concave-convex engaging portions 6 and 7 are formed in two rows in the longitudinal direction, and the convex portion 8 and the concave portion 9 formed in one row are the other. Is formed in the concave portion 9 and the convex portion 8 in the row of, the convex portion 8 and the concave portion 9 of the concave and convex engaging portions 6a, 6b, 7a, 7b of these two rows are formed.
2. The ridges are formed so as to be misaligned in the longitudinal direction.
Alternatively, the present invention relates to the heat insulating container described in 2.

According to the present invention, since the convex portion 8 and the concave portion 9 of the concave-convex engaging portions 6a, 6b, 7a, 7b formed in parallel in two rows are formed so as to be misaligned in the longitudinal direction,
In the width direction of each member, that is, in the thickness direction, the convex portion 8 and the concave portion 9 do not regulate each other, and the engaging portions of the members do not shift in the width direction, that is, the thickness direction, and are also conveyed from this surface. There is no possibility that the two-tiered heat-insulating container consisting of the bottomed lower box 1, the tubular middle box 2 and the upper lid 3 will be deformed or its shape-retaining state will not be deformed due to vibration or shock.

Further, in the invention according to claim 4, the concave-convex engaging portion 6 is formed along the concave-convex engaging portion 6 formed on the upper lid 1 inside thereof.
The present invention relates to the heat insulating container according to any one of claims 1 to 3, which is formed by forming the annular ridge 10 having a protrusion amount larger than the protrusion amount.

It is the bottom and the top of a heat-insulated container that receive the largest load and impact from the contained object, but the bottom 1a of the bottomed lower box 1 is formed integrally with the side plates 1b to 1e. Since it has sufficient strength, the upper lid 3 on the upper side is a separate body from the cylindrical inner box 2. Therefore, with the same structure, the upper lid 3 can be easily replaced by a load or an impact from an object to be contained. It is also possible that there is a risk of detachment from the box 2. In this respect, according to the present invention, since the upper lid 3 is provided with the annular projection 10 protruding from the uneven engagement portion 6 along the uneven engagement portion 6, the annular projection 10 is projected. The strip 10 elastically abuts on the inner surfaces of the side plates 2 to 2d of the tubular middle box 2 facing the strip 10 to effectively prevent the upper lid 3 from coming off the tubular middle box 2.

The invention according to claim 5 is characterized in that the side plate 2a, 2b, 2c, 2d forming the cylindrical inner box 2 is provided with a handhold recess 11 on at least the inner surfaces thereof facing each other. The present invention relates to the heat insulating container according to any one of Items 1 to 4.

According to the present invention, a large number of heat-insulating containers are stacked on a transport means so as to be adjacent to each other with no space therebetween, and when the heat-insulating containers are taken out at a required transportation place, the outer surface of each heat-insulating container is captured and taken out. Even if it is difficult to carry out, the operator puts his hands on the handhold recesses 11 formed on at least the opposing surfaces of the inner surfaces of the side plates 2a to 2d of the tubular inner box 2, and the work pieces were loaded without gaps. Even a heat-insulated container can be easily taken out.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 shows a state in which a bottomed lower box 1, a tubular middle box 2 and an upper lid 3 are engaged and anastomosed by first engaging portions 4 which face each other in the vertical direction. Of these, bottomed bottom box 1
The bottom plate 1a at the bottom and the side plates 1b to 1e on the front, rear, left, and right are considerably formed with concavo-convex engaging portions 6 continuously in the longitudinal direction at the upper edges of the openings of the side plates 1b to 1e. Is the two rows of concavo-convex engaging portions 6a and 6b,
The convex portion 8 and the concave portion 9 formed in one row are formed in the concave portion 9 and the convex portion 8 in the other row. The recesses 9 are formed so as to be misaligned in the longitudinal direction. However, the first engaging portion 4, that is, the concave-convex engaging portion 6 may be flat without forming the concave-convex portion. Further, the uneven portion may not be formed in the corner portion of the peripheral edge. Therefore, in the present invention, that the first engaging portion 4, that is, the concave-convex engaging portion 6 is continuously formed means a case including the above-mentioned flat portion.

A cylindrical middle box 2 having a cylindrical opening at the top and bottom
Is composed of front, rear, left and right side plates 2a to 2d, and concave-convex engaging portions 6 are continuously formed in the longitudinal direction at the upper and lower edges of the opening, similarly to the bottomed lower box 1. The two rows of concave-convex engaging portions 6a and 6b are parallel to each other, and the convex portion 8 and the concave portion 9 formed in one row are formed in the concave portion 9 and the convex portion 8 in the other row. The convex portion 8 and the concave portion 9 of these two rows of concave-convex engaging portions 6a and 6b are formed so as to be interleaved in the longitudinal direction. Further, as in the case of the bottomed lower box 1, it is not necessary to form the concavo-convex portion at a part of the concavo-convex engaging portion 6 or a peripheral corner portion.

Further, a concave and convex engaging portion 6 is continuously formed on the lower surface side of the upper lid 3 in the longitudinal direction thereof. Specifically, two rows of concave and convex engaging portions 6a and 6b are parallel to each other. , The convex portions 8 and the concave portions 9 formed in one row are formed in the concave portions 9 and the convex portions 8 in the other row,
The convex portion 8 and the concave portion 9 of these two rows of concave-convex engaging portions 6a and 6b are formed so as to be interleaved in the longitudinal direction. Further, as in the case of the bottomed lower box 1, it is not necessary to form the concavo-convex portion at a part of the concavo-convex engaging portion 6 or a peripheral corner portion.

When the bottomed bottom box 1, the cylindrical middle box 2 and the upper lid 3 are engaged with each other, the convex portions 8 and the concave portions 9 of the concave and convex engaging portions 6a and 6b facing each other are naturally engaged with each other. It will fit. At this time, when the convex portion 8 is engaged with the concave portion 9 by forming the groove width of the concave portion 9 to be slightly narrower than the protruding width of the convex portion 8, the concave-convex portions 8 and 9 are formed due to elasticity peculiar to the foam synthetic resin. Can be elastically deformed with respect to each other to maintain the engaging force strongly. By forming the uneven portions 8 and 9 in a substantially gourd-like shape, a stronger engaging force can be expected.

Further, since the convex portion 8 and the concave portion 9 of the concave-convex engaging portions 6a and 6b formed in parallel in two rows are formed so as to be interleaved in the longitudinal direction, (a) and (b) of FIG. ), The bottomed bottom box 1, the tubular middle box 2 and the top lid 3 in the width direction,
That is, the convex portion 8 and the concave portion 9 do not regulate each other in the thickness direction, and the engaging portions of the members 1, 2 and 3 do not shift in the width direction, that is, the thickness direction of the side plate. There is no possibility that the two-tiered heat-insulating container consisting of the bottomed lower box 1, the tubular middle box 2 and the upper lid 3 will be deformed or its shape retention will be lost due to vibration or shock during transportation.

Further, the front, rear, left and right side plates 2a to 2d forming the cylindrical inner box 2 are also adapted to be engaged and anastomosed with each other by the second engaging portion 5, and the opposite edges of the side plates 2a to 2d, That is, the concavo-convex engaging portions 7 that are continuous in the vertical direction are formed on the left and right side edges of each of the side plates 2a to 2d. Specifically, two rows of the concavo-convex engaging portions 7a and 7b are parallel to each other,
As shown in (a) and (b) of the above, these two rows are formed such that the convex portion 8 and the concave portion 9 formed in one row are formed in the concave portion 9 and the convex portion 8 in the other row. Uneven engaging part 6
The convex portions 8 and the concave portions 9 of a and 6b are formed so as to be interleaved in the longitudinal direction. However, the second engaging portion 4, that is, a part of the concave-convex engaging portion 7 may be flat without forming the concave-convex portion.

Therefore, in use, the bottomed lower box 1 and the tubular middle box 2 are engaged and anastomosed with each other by their first engaging portions 4 to form a large-capacity accommodating portion. An object to be accommodated such as fresh food is accommodated, and then the upper lid 3 is engaged with the upper edge of the cylindrical inner box 2 by the first engaging portion 4 and anastomosed, and the inside is hermetically sealed and transported to a required place. Good. As a result, a large volume of the object to be housed can be transported in a cold and warm state.

When the contained object is taken out after being transported to the required place, naturally the upper lid 3 and the tubular middle box 2 are appropriately separated from the bottomed bottom box 1 by a little force to engage the first engaging portion 4. The combined state is opened, and the contained object can be easily taken out.

The feature of the present invention is that, as shown in FIG. 3, the side plates 2a to 2d constituting the tubular inner box 2 can be separated from each other by the second engaging portion 5 thereof. That's what it looks like. That is, each side plate 2a to 2d
Are slightly separated from each other, the engaged state of the second engaging portion 5 is released, and the side plates 2a to 2d are separated from each other.

As shown in FIG. 6, the side plates 2a to 2d are housed in the bottomed lower box 1 so as to be stacked.
By engaging the upper lid 3 with the bottomed lower box 1 by means of the first engaging portion 4, the size of the tubular middle box 2 becomes compact, so that the return volume is small and the return cost is reduced. You can do it. For this reason, the heat insulating container according to the present invention can be used as a so-called returnable box for carrying the accommodated portion.

As described above, when a contained object is housed in a two-tiered heat-insulating container consisting of the bottomed lower box 1, the tubular middle box 2 and the upper lid 3 and conveyed, a large load of the contained object is conveyed. The bottom plate 1a of the bottomed bottom box 1 and the upper lid 3 are subject to a shock or
Has no problem because it is integrated with the side plates 1b to 1e of the bottomed lower box 1, but the upper lid 3 has a cylindrical middle box 2 due to its load or impact.
However, in this embodiment of the present invention, as shown in FIGS. 7 (a) and 7 (b), along the concave-convex engagement portion 6 formed on the upper lid 3, Since the annular protrusion 10 having a larger protrusion amount than the protrusion amount of the concave-convex engaging portion 6 is provided on the inner side of the lever, the annular protrusion 10 faces the side plate 2 of the tubular middle box 2 facing the protrusion. It is possible to effectively prevent the upper lid 3 from being detached from the cylindrical inner box 2 by elastically contacting the inner surfaces of 2d to 2d.

Further, when an object is contained in a heat-insulating container and is transported, a large number of heat-insulating containers are stacked on a transport means adjacent to each other without a gap, or the heat-insulating container is housed in a box-shaped foldable container. It may be difficult for an operator to manually pick up and take out the outer surface of each heat-insulating container when the heat-insulating container is taken out at a required transportation place. In this respect, according to the embodiment of the present invention, as shown in FIG. 3, since the handle recesses 11 are formed on at least mutually opposing surfaces of the inner surfaces of the side plates 2a to 2d of the tubular inner box 2. , The operator inserts his / her hand inside the cylindrical inner box 2 and
By placing a hand on the heat insulating container, the adjacent heat insulating container can be easily taken out without disturbing the adjacent heat insulating container. In this case, depending on the load of the contained object and the resistance of the adjacent heat insulating container, the cylindrical inner box 2,
When the operator pulls out 2d, the cylindrical inner box 2 and the bottomed lower box 1 thereunder may sometimes separate, but even if both boxes separate from each other, After taking out, at least a sufficient gap corresponding to the thickness of the side plates 2a to 2d of the cylindrical inner box 2 is formed, so that the contained object can be taken out from this gap. Further, a handle recess 12 is appropriately formed on the outer peripheral surface of the cylindrical inner box 2.

Depending on the size of the housed object, the use of the cylindrical middle box 2 may be omitted, the housed object may be housed in the bottomed lower box 1, and the upper lid 3 may be directly engaged and anastomosed thereto. Of course, it can be done.

[0028]

According to the first aspect of the present invention, since the cylindrical inner box is interposed between the bottomed lower box and the upper lid to engage and connect with each other, the cylindrical middle box is formed. It is possible to accommodate a large volume of the object to be accommodated in both the box and the bottomed lower box that is continuous with the box, and by engaging the upper lid with the cylindrical middle box, the large volume of the object to be accommodated. Can be transported to a required place while keeping it cold or warm, and after carrying the contained object to the required place and removing the upper lid from the cylindrical inner box and taking out the contained object, While releasing the engagement state with the box, also release the engagement state with each side plate of the tubular middle box,
Stack each side plate to make it bulky and store these in a bottomed bottom box,
By engaging the upper lid with the bottomed lower box, the container can be returned in the state of a low-volume heat-insulating container including the bottomed lower box and the upper lid engaged with the lower box. For this reason, even if only the heat-insulating container is returned, it can be returned in a compact state, so the return cost is low and it can be repeatedly used as a so-called returnable box.

According to the invention of claim 2, the upper lid,
The first engaging portion that engages the tubular inner box and the bottomed lower box with each other and the second engaging portion that engages the side plates forming the tubular inner box with each other are concave and convex members that are alternately continuous in the longitudinal direction. Since the joint portion is formed, it is possible to strongly maintain the engaged state with each other due to the elasticity peculiar to the foamed synthetic resin, and the members are not disassembled due to vibration or shock during transportation.

According to the third aspect of the invention, since the convex portion and the concave portion of the concave-convex engaging portion formed in parallel in two rows are formed so as to be interleaved in the longitudinal direction, the width of each member In the direction of the thickness, that is, in the thickness direction, the convex portion and the concave portion do not regulate each other so that the engaging portions of the respective members do not shift in the width direction, that is, the thickness direction. The two-tiered heat-insulating container consisting of the bottomed bottom box, the tubular middle box, and the top lid is not deformed or its shape-retaining state is maintained, and can be used stably for a long period of time.

Further, according to the invention of claim 4, an annular ridge having a larger protrusion amount than the protrusion amount of the concave-convex engaging portion is formed inside the concave-convex engaging portion formed on the upper lid. Therefore, even if a large load or impact is received from the contained object during transportation of the heat-insulating container, the annular ridge elastically abuts the inner surface of the side plate of the cylindrical inner box facing the annular ridge, and It is possible to effectively prevent the upper lid from coming off the box.

Further, according to the invention of claim 5, since at least the inner surfaces of the side plates forming the tubular inner box 2 are provided with the recessed portions for catching on the surfaces facing each other, for example, a large number of heat insulations are formed. Even if it is difficult to capture and take out the outer surface of each heat-insulating container when the heat-insulating containers are taken out at the required transportation place and the containers are stacked next to each other with no gaps between them, the inside An operator can easily take out even a heat-insulated container loaded without a gap by putting an operator's hand into a recess for a handle formed on at least opposing surfaces of the inner surface of the side plate of the box.

[Brief description of drawings]

FIG. 1 is an external perspective view of an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is an exploded perspective view of the main part.

FIG. 4 is a vertical cross-sectional view of the main part.

FIG. 5 is a vertical cross-sectional view of another main part of the same.

FIG. 6 is a vertical cross-sectional view showing the same usage state.

FIG. 7 is a vertical cross-sectional view of another main part of the same.

[Explanation of symbols]

 1 Bottomed bottom box 2 Cylindrical middle box 2a Side plate 2b Side plate 2c Side plate 2d Side plate 3 Upper lid 4 First engaging part 5 Second engaging part 6 Uneven engaging part 6a Uneven engaging part 6b Uneven engaging part 7 Uneven Engaging part 7a Uneven engaging part 7b Uneven engaging part 8 Convex part 9 Recessed part 10 Annular convex part 11 Recessed part for hand

Claims (5)

[Claims] 1. A first engagement member comprising a bottomed bottom box formed of a foamed synthetic resin material, a cylindrical inner box, and an upper lid, the upper and lower facing surfaces of which are detachably engaged with each other. A second engaging portion having a mating portion and releasably engaged with respective laterally opposing surfaces of the front side plate, the rear side plate, the right side plate and the left side plate which form the tubular inner box. A heat-insulating container having. 2. The heat insulating container according to claim 1, wherein the first and second engaging portions are concave and convex engaging portions that are alternately continuous in the longitudinal direction. 3. The concavo-convex engaging portion is formed in two rows in the longitudinal direction, and the convex portion and the concave portion formed in one row are formed in the concave portion and the convex portion in the other row. The heat insulating container according to claim 1 or 2, wherein the convex portion and the concave portion of these two rows of concave-convex engaging portions are formed so as to be interleaved in the longitudinal direction. 4. An annular ridge having a protrusion amount larger than the protrusion amount of the concave-convex engaging portion is formed inside the concave-convex engaging portion formed on the upper lid. Insulated container described. 5. The heat-insulated container according to claim 1, wherein the side plate forming the tubular inner box is provided with a recess for a handle on at least the inner surfaces of the side plates facing each other.