JP3231838U - Cool box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold insulation box capable of easily and smoothly opening and closing a lid of a box body for accommodating an object to be contained such as food. A cold storage box 1 includes a box body 2 having an opening and a lid 3 that is rotated to open and close the opening, and the lid 3 has a top surface 30 located above the opening when closed. The front hanging portion 34 extending substantially downward from the front edge thereof, the front hanging portion 34 along the upper outer surface of the front wall portion 11, and the left and right hanging portions extending substantially downward from at least the front portions of the left and right edges of the top surface 30. The front hanging portion 34 includes left and right hanging portions 36 along the upper outer surface of the left and right wall portions 13, and the front hanging portion 34 and the left and right hanging portions 36 are integrally formed or connected to each other. The lower ends of the left and right corners 41 and 42 between the left and right hanging portions 36 are rounded, and the left and right corners formed by the front wall portion 11 of the box body 2 and the left and right wall portions 13 are angular. Or, it has a radius of curvature smaller than that of the lower ends of the left and right corners 41 and 42 that are rounded between the front hanging portion 34 and the left and right hanging portions 36. [Selection diagram] Fig. 1

Description

The present invention relates to a cold storage box for transporting an object to be contained such as food in a cold state.

Conventionally, a substantially rectangular parallelepiped cold storage box that is housed inside a container for transportation or attached to a bicycle with a rear car or a push cart when a delivery company collects or delivers food or other items to be contained. It has been known.

Such a cold box is usually rotatably attached to a box having four side surfaces, a front wall, left and right wall and rear wall, and a bottom wall, and an upper part of the rear wall of the box. , A lid is provided to cover the opening formed in the upper part of the box body, and the space formed inside the box body is configured to store foods and the like together with an ice pack.

For example, in Patent Document 1, the lid is provided with a flat top surface and hanging portions (fan-shaped collar portions 61) extending downward from the front edge and the left and right edges of the top surface, and the lid is closed. Occasionally, a cold insulation box (insulation) that can prevent cold air from leaking to the outside by covering a slight gap between the box body and the top surface by the hanging part along the upper outer surface of the box body. Gender storage case) is disclosed.

On the other hand, Patent Document 2 discloses a cold storage box (cold storage container) in which a connecting piece (13) is attached to each of the upper edges of the left and right wall portions of the box body.

In this cold storage box, the operator rolled up the pair of left and right connecting pieces (13) upward with the lid closed so as to cover the box body, and provided the pair of connecting pieces (13). The hook-and-loop fastener (14) is engaged with the hook-and-loop fastener provided on the upper surface of the lid, and the gap between the left and right edges of the lid and the upper edges of the left and right wall portions of the box is formed by a pair of connecting pieces (13). ) Can be used to prevent cold air from leaking to the outside of the cold storage box.

Japanese Unexamined Patent Publication No. 2000-203665 Japanese Unexamined Patent Publication No. 2009-161237

However, in the cold storage box described in Patent Document 1, as shown in paragraph [0025] and FIG. 8 of Patent Document 1, the hanging portion of the lid (the fanned collar portion 61) is downward from the front edge of the lid. It is divided into a front hanging part extending to (the front part of the fanned collar part (61)) and a left and right hanging part extending downward from the left and right edges of the lid (the left part and the right part of the fanned collar part (61)). ("For each side") is formed.

Therefore, in order to prevent the left and right hanging parts from spreading outward in the left and right direction and the cold air from leaking out, the left and right hanging parts are engaged with the left and right wall parts of the box body by using a locking member such as a hook-and-loop fastener. It was necessary to stop it, and when lifting (opening) the lid upward, it was necessary to remove the left and right locking members, which was troublesome.

Further, when the front hanging portion of the cold insulation box described in Patent Document 1 and the left and right hanging portions are integrally formed, it is not always necessary to use the locking member, but when the lid is opened and closed ( When closing), the lower ends of the left and right corners of the hanging part (the lower end of the corner between the front hanging part and the left and right hanging parts) are located near the left and right corners of the front upper part of the box (front wall). There was a problem that the lid could not be closed smoothly because it was caught in the upper part of the left and right corners between the portion and the left and right wall portions.

Therefore, an object of the present invention is to provide a cold storage box that can smoothly open and close the lid of a box body for accommodating an object to be contained such as food without any trouble.

The purpose of the present invention is
A box with an open top surface, including a front wall, left and right walls, a rear wall, and a bottom wall.
A lid attached to or continuously formed from the rear wall portion, comprising the lid that is rotated to open and close the opening of the box body.
The lid is a top surface located above the opening when the lid is closed, and a front hanging portion extending substantially downward from the front edge of the top surface, and is along the upper outer surface of the front wall portion. The front hanging portion and the left and right hanging portions extending substantially downward from at least the front portion of the left and right edges of the top surface are provided, and the left and right hanging portions along the upper outer surface of the left and right wall portions are provided.
The front hanging portion and the left and right hanging portions are integrally formed or connected to each other.
The lower ends of the left and right corners between the front hanging portion and the left and right hanging portions each have a rounded shape.
The left and right corners formed by the front wall portion and the left and right wall portions of the box body have an angular shape, respectively, or the roundness between the front hanging portion and the left and right hanging portions is formed. It is achieved by a cold storage box characterized by having a radius of curvature smaller than the lower ends of the left and right corners that are tinged.

According to the present invention, since the front hanging portion extending substantially downward from the top surface of the lid that opens and closes the opening of the box body and the left and right hanging portions are integrally formed or connected, the locking member can be formed. Even if the left and right hanging parts of the lid are not locked to the left and right wall parts of the box body, the left and right hanging parts expand outward in the left-right direction (outward in the left-right direction centering on the joint with the top surface). Therefore, the lid can be easily opened and closed simply by rotating it, and it does not take time and effort.

Further, according to the present invention, the lower ends (lower edges) of the left and right corners between the left and right hanging portions and the front hanging portions, which are integrally formed or connected to each other, have a rounded shape (R). The shape) is formed, and the left and right corners on the front side of the box have a more angular shape than the left and right corners between the left and right hanging parts and the front hanging part, so the lid is rotated to open and close. At that time, the lower ends of the left and right corners between the left and right hanging parts of the lid and the front hanging part are caught near the upper part of the left and right corners between the front wall part and the left and right wall parts of the box body. Therefore, the lid can be opened and closed smoothly.

In a preferred embodiment of the present invention,
The upper ends of the left and right corners between the front hanging portion and the left and right hanging portions are matched to the shapes of the left and right corners formed by the front wall portion and the left and right wall portions of the box body. It is formed into a shape and has an angular shape, or has a radius of curvature smaller than that of the lower ends of the left and right corners between the front hanging portion and the left and right hanging portions.

According to this preferred embodiment of the present invention, the upper ends of the left and right corners between the front hanging portion and the left and right hanging portions are formed by the front wall portion and the left and right wall portions of the box body. It is formed according to the shape of the portion, that is, the upper ends of the left and right corners between the front hanging portion and the left and right hanging portions have a square shape, or the front hanging portion and the left and right hanging portions are formed. Since it has a radius of curvature smaller than the lower ends of the left and right corners between, the upper part of the front wall part of the box and the upper part of the left and right wall parts, and the front hanging part and the left and right hanging parts along these outer surfaces. The portions can be brought into contact with each other or brought close to each other, and leakage of cold air from the vicinity of the upper part of the box body can be effectively suppressed.

In a preferred embodiment of the present invention,
The upper edges of the front portions of the left and right wall portions of the box body are formed diagonally downward in the front direction.

According to this preferred embodiment of the present invention, since the upper edges of the front portions of the left and right wall portions are formed diagonally downward in the front, the lower portion of the front hanging portion and the left and right hanging portions are formed when opening and closing the lid. Effectively prevents the lower ends of the left and right corners (connecting with) between the and the front hanging portion from being caught on the upper end portion of the front wall portion of the box body or the front upper end portion of the left and right wall portions. be able to.

In a preferred embodiment of the present invention,
The front hanging portion and the left and right hanging portions have flexibility at least in a portion located at the upper part in a state where the lid is closed.

According to this preferred embodiment of the present invention, the front hanging portion and the left and right hanging portions have flexibility in the upper portion thereof, so that the lid is rotated backward when the cold insulation box is not used. Therefore, the operator can fold the front hanging portion and the left and right hanging portions flat at the upper portion thereof, and the lid is not bulky.

In a more preferred embodiment of the present invention,
At the bottom of the box body, a drainage means for draining the water accumulated inside the box body is provided.

According to this preferred embodiment of the present invention, since the drainage means is provided at the bottom of the box body, it is possible to drain the water when condensed water or rainwater collects inside the box body, which is convenient. Good sex.

According to the present invention, it is possible to provide a cold storage box in which the lid of a box body for accommodating an object to be contained such as food can be opened and closed smoothly and easily.

FIG. 1 is a schematic perspective view showing a state in which the lid of the cold insulation box according to the preferred embodiment of the present invention is closed. FIG. 2 is a schematic perspective view showing a state in which the lid of the cold insulation box shown in FIG. 1 is opened and rotated backward. FIG. 3 is a schematic vertical sectional view of the cold storage box shown in FIG. FIG. 4 is a schematic perspective view showing a state in which only the front portion of the lid of the cold insulation box shown in FIG. 1 is rotated rearward. FIG. 5 is a schematic explanatory view showing the shapes of the front wall portion and the upper end portions of the left and right wall portions of the box body and the shape of the first hanging portion according to the embodiment shown in FIG. FIG. 6 is an enlarged view of a schematic right side surface portion in the vicinity of the front upper part of the wall portion on the right side of the box body according to the embodiment shown in FIG. FIG. 7 is a schematic perspective view showing a state in which the upper portion of the front wall portion is rotated forward and further downward. FIG. 8 is a partially enlarged perspective view of the cold insulation box shown in FIG. 1 as viewed from diagonally below.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a schematic perspective view showing a state in which the lid of the cold storage box 1 according to the preferred embodiment of the present invention is closed, and FIG. 2 is a rear view in which the lid of the cold storage box 1 shown in FIG. 1 is opened. It is a schematic perspective view which shows the state which was rotated to.

Further, FIG. 3 is a schematic vertical sectional view of the cold insulation box 1 shown in FIG. 1, and FIG. 3A is a schematic view of the cold insulation box 1 along the XX line shown in FIG. It is a vertical cross-sectional view, and FIG. 3B is a schematic vertical cross-sectional view of the cold insulation box 1 along the YY line shown in FIG.

As shown in FIGS. 1 and 2, the cold storage box 1 includes a box body 2 and a lid 3 that covers the upper surface of the box body 2, and a storage space 5 formed inside the box body 2 (see FIG. 2). In addition, it is configured to be able to accommodate items to be contained such as food.

The box body 2 includes a front wall portion 11, left and right wall portions 12, 13 and a rear wall portion 14 (see FIGS. 2, 3 (a) and 3 (b)) and a bottom wall portion that constitute the four side surfaces thereof. 15 (see FIGS. 3A and 3B) and a heat insulating plate member 16 detachably attached to the inner surface (the surface facing the accommodation space 5) of each of the four side surfaces by using a hook-and-loop fastener. 19 (see FIG. 2) and a heat insulating plate member 20 (see FIGS. 3A and 3B) mounted on the bottom wall portion 15. On the upper surface of the box body 2, an opening 7 (see FIG. 2) for taking in and out an object to be contained from the accommodation space 5 is formed.

As shown in FIGS. 3A and 3B, the heat insulating plate members 16 to 20 are in contact with each other at their respective edge portions, and the front wall portion 11 and the left and right wall portions constituting the outer container are in contact with each other. Inside 12, 13, the rear wall portion 14 and the bottom wall portion 15, the heat insulating plate members 16 to 20 form an inner container having a storage space 5 inside.

As shown in FIGS. 2, 3 (a) or 3 (b), the accommodation space 5 has a heat insulating plate member 16 at the front portion, a heat insulating plate member 19 at the rear portion, and a heat insulating plate member 17 at the left portion. The right part is defined by the heat insulating plate member 18, and the lower part is defined by the heat insulating plate member 20.

In the present embodiment, each of the heat insulating plate members 16 to 20 is formed by wrapping a middle material made of expanded polystyrene with a cloth made of polyethylene, and has heat insulating property, pressure resistance and rigidity. There is.

On the other hand, the front wall portion 11, the left and right wall portions 12, 13 and the rear wall portion 14 are each made of polyethylene and have heat insulating properties, and further, the rear upper portion and the rear wall portion 14 of the left and right wall portions 12, 13 are formed. It has flexibility except for the upper part of.

In this way, the inner container composed of the heat insulating plate members 16 to 20 having heat insulating properties, pressure resistance and rigidity is the front wall portion 11, the left and right wall portions 12, 13, the rear wall portion 14, and the bottom wall portion 15. Since it is covered with an outer container configured by the above, it is possible to prevent cold air from leaking to the outside of the cold insulation box 1 from a portion where the heat insulating plate members 16 to 20 are in contact with each other.

As shown in FIG. 2, in the present embodiment, the outer surfaces of the left and right corner portions 23 and 24 formed by the front wall portion 11 of the box body 2 and the left and right wall portions 12 and 13 are angular, respectively. It has a shape, and the front wall portion 11, the left and right wall portions 12, 13 and the rear wall portion 14 are formed higher than the heat insulating plate members 16 to 19, respectively.

As shown in FIGS. 1 and 2, four belts 21 provided with hook-and-loop fasteners (not shown) are provided on the lower outer surface of the right wall portion 13, and these belts 21 are used. The cold insulation box 1 is configured so that it can be attached to a push cart or the like. The cold insulation box 1 is symmetrically configured except that the belt 21 is not provided on the left wall portion 12.

On the other hand, the lid 3 has a top surface 30 located above the opening 7 and a mounting portion 31 attached to the upper part of the outer surface (rear surface) of the rear wall portion 14 (see FIG. 3A) when the lid 3 is closed. , A connecting portion 37 connecting the top surface 30 and the mounting portion 31 (see FIG. 3A), a heat insulating plate member 32 fixed to the lower surface of the top surface 30, and a front portion of the top surface 30 (of the top surface 30). From the first hanging portion 33 (see FIGS. 1, 2 and 3 (a)) extending substantially downward from the edge of the portion (the portion in front of the substantially central portion in the front-rear direction) and the left and right edges at the rear portion of the top surface 30. A pair of left and right second hanging portions 38 (see FIGS. 1, 2 and 3 (b)) extending substantially downward are provided, and the upper end portion of the mounting portion 31 (see FIG. 3 (a)) is centered by an operator. As shown in FIG. 1, the posture of covering the upper part (opening 7 and the like) of the box body 2 and the position of the entire lid 3 at the rear position of the box body 2 as shown in FIG. It is configured to be switchable between a posture in which the box body 2 hangs down and the opening 7 of the box body 2 is exposed.

As shown in FIG. 3A, between the first hanging portion 33 and the heat insulating plate member 32, when the lid 3 is closed, the front wall portion 11 or the upper portions of the left and right wall portions 12, 13 A slight gap is formed for the lid to be inserted.

As shown in FIGS. 3A and 3B, when the lid 3 is closed, the edge of the heat insulating plate member 32 fixed to the lower surface of the top surface 3 is placed on the heat insulating plate members 16 to 19. It will be placed. As a result, since the upper portion of the accommodation space 5 is covered with the heat insulating plate member 32, the storage space 5 is insulated from the outside of the cold insulation box 1.

Therefore, the worker can keep the contents to be kept cold by putting the contents to be contained such as food in the storage space 5 together with the ice pack or dry ice and rotating and closing the lid 3.

In addition, in the cold insulation box 1 according to the present embodiment, the lid 3 can be further opened and closed as follows.

FIG. 4 is a schematic perspective view showing a state in which only the front portion of the lid 3 of the cold insulation box 1 shown in FIG. 1 is rotated rearward.

As shown in FIG. 1, a perforation 48 is formed at a substantially central portion of the top surface 30 of the lid 3 in the front-rear direction.

Further, as shown in FIG. 3A, the heat insulating plate member 32 includes a front heat insulating plate member 45 and a rear heat insulating plate member 46, and the front heat insulating plate member 45 and the rear heat insulating plate member 46 face each other. The connecting portion 47, which is connected to each other at the upper end portion of the above and is shown in FIG. 4, is located below the perforation 48 (see FIG. 1) formed on the top surface 30.

With this configuration, the operator can move only the front part of the lid 3 upward about the perforation 48 formed on the top surface 30, as shown by the alternate long and short dash line with an arrow in FIG. Further, it can be rotated backward to expose only the front portion of the opening 7. Therefore, as described above, when the lid 3 is rotated rearward around the upper end portion of the mounting portion 31 shown in FIG. 3A (the state shown in FIG. 2) to expose the opening 7 to the rear portion. In comparison with the above, leakage of cold air when the object to be contained is taken in and out of the accommodation space 5 can be suppressed.

At this time, a pair of left and right second hanging portions 38 extending substantially downward from the left and right edges at the rear portion of the top surface 30 are provided on the inner surface thereof and the rear upper portion of the left and right wall portions 12, 13, respectively. It is attached to the outer surface of the upper rear part of the left and right side walls 12 and 13 using the hook-and-loop fastener 40 (see FIGS. 2 and 3B), and the lid 3 is rotated around the upper end portion of the attachment portion 31. At that time, the pair of left and right second hanging portions 38 are removed from the rear upper part of the left and right side walls 12, 13.

On the other hand, as shown in FIG. 1 or 4, the first hanging portion 33 of the lid 3 is a front hanging portion 34 extending substantially downward from the front edge of the top surface 30 (approximately downward with the lid 3 closed). And the left and right hanging portions 35 and 36 extending substantially downward from the left and right edges of the front portion of the top surface 30 (the portion on the front side of the perforation 48 formed on the top surface 30) are integrally formed. As shown in FIG. 4, the left and right corner portions 41 and 42 are formed between the front hanging portion 34 and the left and right hanging portions 35 and 36.

When the lid 3 is closed, the front hanging portion 34 of the first hanging portion 33 is along the upper outer surface of the front wall portion 11 of the box body 2 (see FIG. 3A), and the left and right sides of the first hanging portion 33. The front upper portions of the left and right wall portions 12 or 13 of the box body 2 are along the front upper outer surface of the left and right wall portions 12 or 13, respectively, and the front upper portions of the left and right wall portions 12 and 13 of the box body 2 are the first hanging portions 33. A gap formed between the left and right hanging portions 35, 36 and the left and right corner portions 41, 42 (see FIGS. 1 and 4) and the front heat insulating plate member 45 (see FIGS. 4 and 3 (a)). It is configured to be located inside.

FIG. 5 is a schematic description showing the shapes of the front wall portions 11 of the box body 2 and the upper ends of the left and right wall portions 12 and 13 and the shape of the first hanging portion 33 according to the embodiment shown in FIG. 5A is a schematic description showing the shape of the upper end portions of the front wall portion 11 and the left and right wall portions 12 and 13 of the box body 2 and the shape of the lower end portion of the first hanging portion 33. 5 (b) is a schematic description showing the shape of the upper end portions of the front wall portion 11 and the left and right wall portions 12 and 13 of the box body 2 and the shape of the upper end portion of the first hanging portion 33. It is a figure.

FIG. 5 shows a state in which the front wall portion 11 of the box body 2, the upper ends of the left and right wall portions 12, 13 and the lower end portion or the upper end portion of the first hanging portion 33 are viewed from above.

As shown in FIGS. 1, 4 and 5 (a), the lower ends of the left and right corners 41 and 42 formed in the first hanging portion 33 (with the lid 3 closed, downward). Each of the located ends) has a rounded shape (so-called R shape).

By forming the lower ends of the left and right corners 41 and 42 into a rounded shape in this way, the operator rotates the lid 3 and puts it on the upper part of the box body 2 (closes the lid 3). ), The inner surfaces of the left and right corners 41 and 42 of the first hanging portion 33 of the lid 3 and the outer surfaces of the upper ends of the left and right corners 23 and 24 of the box body 2 facing them. A slight margin is formed between them.

Therefore, when the lid 3 is closed, the left and right corners 41 of the lid 3 are attached to the upper ends of the left and right corners 23 and 24 having a square shape between the front wall 11 and the left and right wall portions 12, 13. Since the situation where the lower end portion (lower edge) of the 42 is prevented from being caught, the lid 3 can be closed smoothly.

Further, in the present embodiment, as shown in FIG. 1 or FIG. 5 (b), the left and right corners 51 and 52 located at the front end of the top surface 30 of the lid 3 and the first hanging portion 33. The upper ends of the left and right corners 41 and 42 have an angular shape that matches the angular shape of the left and right corners 23 and 24 of the box body 2, respectively.

In other words, the left and right corners 41 and 42 of the first hanging portion 33 extending downward from the front edge of the top surface 30 and the left and right edges have an angular shape at the upper end (FIG. FIG. 5 (b)) forms a rounded shape (see FIG. 5 (a)) as it extends downward.

With this configuration, when the lid 3 is completely closed (see FIG. 1), as shown in FIG. 5 (b), the upper ends of the left and right corners 23 and 24 of the box 2 are formed. And the vicinity thereof and the inner surface of the first hanging portion 33 along the outer surface thereof can be brought into contact with each other or even closer to each other. Therefore, even if the lid 3 can be closed smoothly, the box can be closed. It is possible to effectively suppress the leakage of cold air from the vicinity of the upper end portion of the front portion (the portion on the front side from the perforation 48) of the body 2. As will be described in detail later, since the front portion of the box body 2 has a downward-sloping shape, strictly speaking, the upper end portion of the front hanging portion 34 of the lid 3 is the front wall portion 11 of the box body 2. The portion of the first hanging portion 33 that does not face the upper end portion (see FIG. 6) but faces the front portion of the left and right wall portions 12 and 13 and each upper end portion of the front wall portion 11 is FIG. 5 (a). ) Is more angular than the lower end of the first hanging portion 33 (a shape close to the shape of the upper end of the first hanging portion 33 shown in FIG. 5B).

FIG. 6 is an enlarged view of a schematic right side surface portion near the front upper portion of the right wall portion 13 of the box body 2 according to the embodiment shown in FIG. 1, and the lid 3 is a mounting portion 31 (FIG. 3 (FIG. 3). The locus of the lower part of the front hanging portion 34 when rotated around the upper end portion of a)) is indicated by a chain line with an arrow. Further, the upper end portion and the rear end portion of the front wall portion 11 located on the back side of the drawing with respect to the right wall portion 13 and the heat insulating plate member 16 attached to the inner surface of the front wall portion 11 are shown by broken lines, respectively. It is shown.

Further, in FIG. 6, a hanging portion 36 on the right side of the lid 3 (see FIG. 1), a corner portion 42 on the right side between the hanging portion 36 on the right side and the front hanging portion 34, and a hook-and-loop fastener 40 described in detail later are provided. It is omitted for convenience, and the front hanging portion 34 shows a vertical cross section cut in a plane parallel to the wall portion 13 on the right side.

As shown in FIG. 6, the front upper end portion of the right wall portion 13 and the upper end portion of the front wall portion 11 are located at a height position lower than the rear portion and the upper end portion of the right wall portion 13, and the right wall portion. The upper edge of the front portion of the portion 13 is formed diagonally downward in the front direction.

Further, since the cold insulation box 1 according to the present embodiment is symmetrically configured except for the presence or absence of the belt 21, the upper edge of the front portion of the left wall portion 13 is also formed diagonally downward in the front. ing.

Further, in the present embodiment, as shown in FIGS. 2 and 6, the upper end portion of the front wall portion 11 of the box body 2 and the upper portion of the front end of the left and right wall portions 12 and 13 have substantially the same height. It is located in the box.

With this configuration, when the operator opens and closes the lid 3, the lower part of the front hanging portion 34 and the left and right corner portions 41 of the lid 3 whose rotation locus is shown by the alternate long and short dash line with an arrow in FIG. It is effective that the lower portion of 42 (see FIG. 1) (the portion located at the lower portion when the lid 3 is closed) is caught by the upper end portion of the front wall portion 11 or the front upper end portions of the left and right wall portions 12 and 13. Can be prevented.

That is, the front upper parts of the left and right wall portions 12 and 13 of the box body 2 are formed diagonally downward in the front, and the height position of the upper edge of the front wall portion 11 is also aligned with the front upper parts of the left and right wall portions 12 and 13. When viewed from the right side of the cold storage box 1, the rotation locus of the lower part of the front hanging portion 34 shown by the alternate long and short dash line with an arrow in FIG. 6 is the upper part and the right side of the front wall portion 11. As can be understood from the fact that it does not overlap with the front upper end portion of the wall portion 13, the lower portion of the front hanging portion 34 of the lid 3 and the lower portions of the left and right corner portions 41 and 42 (see FIG. 1) of the lid 3 are the lower parts of the box body 2. It is effectively prevented from being caught on the upper end portion of the front wall portion 11 or the front upper end portions of the left and right wall portions 12 and 13.

Further, in the present embodiment, the front upper portions of the left and right wall portions 12 and 13 have flexibility, and when the lid 3 is closed, the front upper portions of the left and right wall portions 12 and 13 are on the right side of the lid 3. It is prevented from being caught in the vicinity of the corner portion 42 or on the front heat insulating plate member 45 and causing an obstacle.

As described above, the left and right corners 41 and 42 of the front portion of the lid 3 shown in FIG. 4 are rounded, and the front upper portions of the left and right wall portions 12 and 13 of the box body 2 are obliquely lowered forward. The lid 3 can be opened and closed very smoothly by the operator because it is formed on the surface and has flexibility.

On the other hand, in the present embodiment, as shown in FIG. 2 or 6, the left and right wall portions 12 and 13 of the box body 2 have the rear upper inner surface and the rear wall portion 14 on the upper inner surface, respectively. A plate-shaped hard core material 25 is attached, and the rear upper portion of the left and right wall portions 12 and 13 and the upper portion of the rear wall portion 14 are held in a state of being erected upward. In No. 6, only the core material 25 attached to the inner surface of the wall portion 13 on the right side is shown by the alternate long and short dash line.

With this configuration, when the lid 3 is closed, the rear upper portion of the left and right wall portions 12 and 13 and the upper portion of the rear wall portion 14 are prevented from being caught by the heat insulating plate member 32 of the lid 3. Therefore, the heat insulating plate member 32 is placed at a position inside the rear wall portion 14 and the left and right wall portions 12, 13 (a position in front of the rear wall portion 14 and a position on the left-right central side of the left and right wall portions 12, 13). Therefore, the lid 3 can be easily closed at a position above the heat insulating plate members 16 to 19 (see FIG. 3A), and the lid 3 can be closed even more smoothly.

As shown on the left side (front side) of the drawing of FIG. 6, a rigid core material 39 is provided inside and below the first hanging portion 33 (the portion located on the lower side when the lid 3 is closed). It is provided so that the shape of the lower portion of the first hanging portion 33 can be held.

On the other hand, since the core material is not provided on the upper portion of the first hanging portion 33, the first hanging portion 33 can be bent at the upper portion. Therefore, for example, when a plurality of cold storage boxes 1 are stacked in the front-rear direction in a folded state, the lid 3 of each cold storage box 1 is rotated rearward (see FIG. 2), and each first hanging portion 33 is placed on the upper side. It can be stacked in the front-rear direction in a state of being bent at (a portion where the core material 39 is not provided), and the first hanging portion 33 is not bulky in the front-rear direction.

The cold insulation box 1 according to the present embodiment is the heat insulating plate member 20 with the lid 3 opened, similar to the cold insulation box (insulation storage case) shown in FIGS. 8 and 9 of Patent Document 1. The front part of the box body 2 is rotated upward and backward, and the front parts of the left and right heat insulating plate members 17 and 18 (see FIG. It can be folded by pressing the plate member 16 backward. That is, in the present embodiment in which the front hanging portion 34 of the lid 3 and the left and right hanging portions 35, 36 are integrally formed, when the lid 3 is rotated backward, as shown in FIG. The first hanging portion 33 extends rearward and becomes bulky, but the first hanging portion 33 can be bent at the upper portion (upper portion in FIG. 6) to make it compact.

Further, in the cold insulation box 1 according to the present embodiment, the opening 7 can be expanded to the front surface of the box body 2 by rotating the upper part of the front wall portion 11 forward and downward as follows. Has been done.

FIG. 7 is a schematic perspective view showing a state in which the upper portion of the front wall portion 11 is rotated forward and further downward.

As shown in FIGS. 1 to 4, a perforation 50 extending in the left-right direction is formed at a position slightly above the substantially central portion in the vertical direction on the front wall portion 11 of the box body 2, and the perforations 50 extending in the left-right direction are formed forward. Further, it is configured to be rotatable downward.

Further, in the present embodiment, a notch is formed at the boundary portion between the front wall portion 11 and the left and right wall portions 12, 13 and above the perforation 50, and the front wall portion is formed. The wing portion 26 is formed so as to extend outward in the left-right direction from the left and right edges of the upper portion of 11, and the hook-and-loop fastener 27 provided on the wing portion 26 is provided on the front upper portion of the left and right wall portions 12 and 13. By engaging with the fastener 28, as shown in FIG. 2, the upper left and right edges of the front wall portion 11 can be held in contact with the upper front edges of the left and right wall portions 12 and 13. It is configured.

Further, as shown in FIG. 3A, the heat insulating plate member 16 includes an upper heat insulating plate member 43 and a lower heat insulating plate member 44, and the upper heat insulating plate member 43 is placed on the inner surface of the upper portion of the front wall portion 11. Attached, the lower insulation plate member 44 is attached to the inner surface of the lower portion of the front wall portion 11.

When the opening 7 is extended to the front surface of the box body 2, the operator first rotates the entire lid 3 rearward to open it (see FIGS. 2 and 7), or at least the front portion of the lid 3. Is opened (see Figure 4).

Next, the operator pulls the pair of left and right wing portions 26 (see FIGS. 4 and 7) forward to disengage the hook-and-loop fasteners 27 and 28, and the front wall portion 11 becomes rotatable. Will be done.

Finally, the operator rotates the upper part of the front wall portion 11 and the upper heat insulating plate member 43 forward and further downward about the perforation 50, as shown by the alternate long and short dash line with an arrow in FIG. Then, the opening 7 of the box body 2 is expanded to the front surface of the cold insulation box 1. At this time, the front wall portion 11 is folded in half at the position of the perforation 50, and is sandwiched between the upper heat insulating plate member 43 and the lower heat insulating plate member 44 from the front and back.

In the state shown in FIG. 7, by further closing the lid 3, the opening portion can be made only the front surface of the cold storage box 1. In this case, the cold air from the upper part of the cold storage box 1 can be used. It is possible to put in and take out the contents from the front while blocking the leakage.

On the other hand, in the present embodiment, when condensed water or rainwater collects inside the cold insulation box 1, water is generated from two diagonal portions of the bottom wall portion 15 as follows. It can be pulled out.

FIG. 8 is a partially enlarged perspective view of the cold storage box 1 shown in FIG. 1 as viewed from diagonally below, and FIG. 8 (a) is a partially enlarged perspective view of the vicinity of the corner portion located at the lower left front of the cold storage box 1. FIG. 8B is a partially enlarged perspective view of the vicinity of the corner portion located at the lower right rear portion of the cold insulation box 1.

As shown in FIG. 8A as “when draining water”, in the lower left front portion of the cold insulation box 1, the boundary portion between the bottom wall portion 15 and the left wall portion 12, and the bottom wall portion 15 and the front wall. A notch 57 or 58 is formed at the boundary portion between the portion 11 and the portion 11, respectively.

Sheet-shaped mounting pieces 53 and 54 are attached to the edge portion of the bottom wall portion 15 in which the notch 57 or 58 is inserted, and each mounting piece 53 and 54 is provided with a hook-and-loop fastener 65 or 66. There is. Further, a hook-and-loop fastener 67 corresponding to the hook-and-loop fastener 65 of the mounting piece 53 is provided on the lower front portion of the outer surface of the left wall portion 12, and the surface of the mounting piece 54 is provided on the lower left portion of the outer surface of the front wall portion 11. A hook-and-loop fastener 68 corresponding to the fastener 66 is provided.

When draining the water accumulated inside the cold storage box 1, the operator pulls the mounting pieces 53 and 54 and removes them from the left wall portion 12 and the front wall portion 11, and then, in FIG. 8A, " As shown as "when draining water", the left front portion of the bottom wall portion 15 can be rolled downward to drain the water accumulated inside the outer container.

If water is accumulated in the accommodation space 5 and the heat insulating plate members 16, 17 and 20 cannot be smoothly drained from the abutting portion, the front portion of the heat insulating plate member 20 is moved rearward and upward. The water accumulated in the accommodation space 5 can be discharged by rotating the water.

Further, after the drainage is completed, the hook-and-loop fastener 65 provided on the mounting piece 53 attached to the bottom wall portion 15 is engaged with the hook-and-loop fastener 67 of the left wall portion 12 and attached to the bottom wall portion 15. By engaging the hook-and-loop fastener 66 provided on the mounting piece 54 with the hook-and-loop fastener 68 of the front wall portion 11, the notches 57 and 58 are made as shown in FIG. 8A as “normal use”. Can be closed to block cold air leaks.

Further, in the present embodiment, as shown in FIG. 8B as “when draining water”, in the lower right rear part of the cold insulation box 1, the boundary portion between the bottom wall portion 15 and the right wall portion 13 , A notch 59 or 60 is formed at the boundary portion between the bottom wall portion 15 and the rear wall portion 14, respectively.

Sheet-shaped mounting pieces 55 and 56 are attached to the edge portion of the bottom wall portion 15 in which the notch 59 or 60 is inserted, and each mounting piece 55 and 56 is provided with a hook-and-loop fastener 61 or 62. There is. Further, a surface fastener 63 corresponding to the surface fastener 61 of the mounting piece 55 is provided on the lower rear portion of the outer surface of the right wall portion 13, and the surface of the mounting piece 56 is provided on the lower right portion of the outer surface of the rear wall portion 14. A hook-and-loop fastener 64 corresponding to the fastener 62 is provided.

Therefore, the operator pulls the mounting pieces 55 and 56 from the right wall portion 13 and the rear wall portion 14 in the same manner as in the case of draining water from the left front portion of the bottom wall portion 15 shown in FIG. 8 (a). After the removal, as shown in FIG. 8B as "when draining water", the right rear portion of the bottom wall portion 15 can be rolled downward to drain the water accumulated inside the outer container.

Further, after the drainage is completed, the surface fastener 61 provided on the mounting piece 55 attached to the bottom wall portion 15 is engaged with the surface fastener 63 of the right wall portion 13 and attached to the bottom wall portion 15. By engaging the hook-and-loop fastener 62 provided on the mounting piece 56 with the hook-and-loop fastener 64 of the rear wall portion 14, the notches 59 and 60 are made as shown in FIG. 8 (b) as "normal use". Can be closed to block cold air leaks.

As described above, in the present embodiment, the notches 57, 58 and 59, 60 (drainage according to the present invention) formed at the two corners of the bottom wall portion 15 diagonally opposite to each other, the left front portion and the right rear portion, are formed. Water can be drained from (corresponding to the means).

According to this embodiment, from the front hanging portion 34 extending substantially downward from the front edge of the top surface 30 of the lid 3 covering the opening 7 formed on the upper surface of the box body 2, and the front portions of the left and right edges of the top surface 30. Since the left and right hanging portions 35 and 36 extending substantially downward are integrally formed as the first hanging portion 33, the left and right hanging portions 35 and 36 are outward in the left-right direction as the cold insulation box 1 is used continuously. The left and right hanging portions 35, 36 do not spread outward (the left and right hanging portions 35, 36 rotate outward in the left-right direction around the joint with the top surface 30), and the left and right hanging portions 35, 36 are combined with the box body. Since it is not necessary to attach the lids 3 to the upper outer surfaces of the left and right wall portions 12 and 13, the lid 3 can be easily opened and closed simply by rotating the lid 3, which saves time and effort.

Further, according to the present embodiment, the lower end portions (lower edge) of the left and right corner portions 41, 42 between the left and right hanging portions 35, 36 and the front hanging portion 34 integrally formed as the first hanging portion 33. ) Have a rounded shape, respectively, as shown in FIGS. 1, 4 and 5 (a), and are formed by the front wall portion 11 of the box body 2 and the left and right wall portions 12 and 13, respectively. Since the left and right corners 23 and 24 have an angular shape, between the lower ends of the left and right corners 41 and 42 of the lid 3 and the vicinity of the upper ends of the left and right corners 23 and 24 of the box body 2. When the lid 3 is rotated to open and close, the lower ends of the left and right corners 41 and 42 of the lid 3 are located near the upper ends of the left and right corners 23 and 24 of the box 2. It is possible to prevent the situation of being caught, and therefore, the lid 3 can be opened and closed smoothly.

In addition, according to the present embodiment, as shown in FIG. 5B, the left and right corners 41, 42 between the front hanging portion 34 of the first hanging portion 33 and the left and right hanging portions 35, 36. Since the upper end portion of the box 2 has an angular shape that matches the shape of the left and right corner portions 23 and 24 formed by the front wall portion 11 and the left and right wall portions 12 and 13, the lid 3 In the closed state, the upper part of the front wall portion 11 of the box body 2 and the upper parts of the left and right wall portions 12 and 13 are brought into contact with the front hanging portions 34 and the left and right hanging portions 35 and 36 along their outer surfaces. , Or, therefore, even if the left and right corners 41, 42 are rounded lids 3, cold air from near the upper end of the front part (perforation 48 to the front side part) of the box body 2. Can be effectively suppressed from leaking.

Further, according to the present embodiment, as shown in FIG. 6, since the upper edges of the front portions of the left and right wall portions 12 and 13 are formed diagonally downward in the front, when opening and closing the lid 3, the lid 3 is opened and closed. The lower portion of the front hanging portion 11 and the lower portions of the left and right corner portions 41 and 42 between the left and right hanging portions 35 and 36 and the front hanging portion 11 are the upper end portions of the front wall portion 11 of the box body 2. Alternatively, it is possible to effectively prevent the left and right wall portions 12 and 13 from being caught in the front upper end portions.

Further, according to the present embodiment, as shown in FIG. 6, the core material 39 having rigidity only in the lower portion of the first hanging portion 33 (front hanging portion 34 and left and right hanging portions 35, 36) of the lid 3. Is sealed, the core material is not sealed in the upper part, and the upper part of the first hanging portion 33 is provided with flexibility. Therefore, when the cold insulation box 1 is not used, the lid 3 is provided. The first hanging portion 33 can be bent at its upper portion (the upper portion in the state shown in FIG. 6) (for example, the lower inner surface of the front hanging portion 34) while the lid is rotated backward. It can be bent at the upper part of the front hanging portion 34 so as to come into contact with the lower surface of the front heat insulating plate member 45), and is not bulky.

Further, according to the present embodiment, the mounting pieces 53, 54 and 55, 56 (see FIGS. 1, 3, 8, 8 and the like) are pulled so that the bottom wall portion 15 is diagonal to each other at the bottom portion of the box body 2. By turning the two located corners (the right rear portion and the left front portion of the bottom wall portion 15), the water accumulated inside the cold insulation box 1 can be drained, which is convenient.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims for utility model registration, and these are also included in the scope of the present invention. Needless to say.

For example, in the above-described embodiment shown in FIGS. 1 to 8, the cold storage box 1 is configured to be attached to a push cart or the like, but the usage of the cold storage box 1 is not limited to this, for example. It may be configured so that it can be accommodated inside a transport container.

Further, in the above embodiment, the cold insulation box 1 is used to keep the contained object cold, but since it includes the heat insulating plate members 16 to 20, it may be used to keep the contained object warm.

Further, in the above embodiment, the heat insulating plate members 16 to 20 are formed by wrapping a middle material made of expanded polystyrene with a cloth made of polyethylene, and the front wall portion 11, the left and right wall portions 12, 13 and the rear wall portion 14 are each made of polyethylene, but the materials of the heat insulating plate members 16 to 20, the front wall portion 11, the left and right wall portions 12, 13 and the rear wall portion 14 are limited to these. is not it.

Further, in the above embodiment, it is not always necessary that the box body 2 is provided with the heat insulating plate members 16 to 20 separately from the front wall portion 11, the left and right wall portions 12, 13 and the rear wall portion 14. Instead, the front wall portion 11, the left and right wall portions 12, 13 and the rear wall portion 14 may be formed of the heat insulating plate member, and the left and right wall portions may be formed diagonally downward in the front direction. In this case, the lower front part of the heat insulating plate member provided on the back side of the lid is formed diagonally downward to the front according to the shape of the left and right wall parts, so that the left and right wall parts and the back side of the lid are provided. A gap is not formed between the heat insulating plate member and the heat insulating plate member, and leakage of cold air can be prevented.

Further, in the above embodiment, the lid 3 is rotatably attached to the upper outer surface of the rear wall portion 14 of the box body 2, but the lid 3 formed separately from the rear wall portion 14 is the rear wall. It is not always necessary to attach to the portion 14, and the lid 3 may be formed continuously from the upper edge of the rear wall portion 14.

Further, in the above embodiment, as shown in FIG. 3, the top plate 30 of the lid 3 and the connecting portion 37 are separately formed and connected, but the top plate 30 and the connecting portion 37 are integrally formed. May be formed in.

In addition, in the above embodiment, since the cold insulation box 1 is not provided with the means for holding the lid 3 in the closed state, the lid 3 is caused by vibration, inclination, or the like while the cold insulation box 1 is being conveyed. For example, one end of the side release buckle is provided on the front wall portion 11 and the other end is provided on the front hanging portion 34 of the lid 3 to hold the lid 3 in a closed state. It may be configured so that it can be used.

Further, in the above embodiment, the upper portion of the front wall portion 11 is rotated forward and downward about the perforation 50 so that the opening 7 can be expanded to the front surface of the cold insulation box 1 as shown in FIG. Therefore, a notch is provided between the upper portion of the front wall portion 11 and the upper portions of the left and right wall portions 12 and 13, so that the pair of left and right wing portions 26 can be connected to each other. And the upper parts of the left and right wall portions 12 and 13 may be integrally (continuously) formed. Further, in the above embodiment, the front wall portion 11 of the box body 2 and the left and right wall portions 12, 13 are not connected to each other at the upper end portions thereof, but the wing portion 26 is the upper end portion of the front wall portion 11. It may be formed so as to extend to the height of the portion, and the front wall portion 11 and the left and right wall portions 12, 13 may be connected to each other up to the upper end portion.

Further, in the above embodiment, the front hanging portion 34 of the lid 3 and the left and right hanging portions 35 and 36 are integrally formed, but the front hanging portion 34 and the left and right hanging portions 36 are integrally formed. This is not always necessary, and the front hanging portion and the left and right hanging portions are directly connected to each other, or the front hanging portion and the left and right hanging portions are connected via a connecting member, so that the front hanging portion and the left and right hanging portions are connected to each other. Rounded left and right corners may be formed between the hanging portion and the hanging portion.

Further, in the above embodiment, not only the entire lid 3 can be rotated to open and close, but also only the front portion of the lid 3 can be rotated to open and close as shown in FIG. As shown in the above, a pair of left and right second hanging portions 38 are provided behind the front edge of the top surface 30 of the lid 3 and the first hanging portion 33 extending from the front portions of the left and right edges. The pair of left and right second hanging portions 38 can be attached to the left and right wall portions 12 and 13 using the hook-and-loop fastener 40, but it is not always necessary to provide the second hanging portions 38. Further, with the lid closed, the left and right hanging portions 36 according to the present embodiment so that the left and right hanging portions extend substantially downward not only from the front portion of the left and right edges of the top surface but also from the rear portion. Left and right sags that are longer than the rear may be formed.

Further, in the above embodiment, the left and right corners 23 and 24 of the box body 2 have a square shape as shown in FIGS. 2 and 5, but have a rounded shape. In this case, the radius of curvature of the left and right corners 23 and 24 of the box body 2 may be formed, respectively, and the left and right corners 41 of the first hanging portion 33 shown in FIG. 5A, respectively. By configuring the lower end portion of 42 to be smaller than the radius of curvature, the lower end portions of the left and right corner portions 41 and 42 of the first hanging portion 33 and the left and right corner portions 23 of the box body 2 facing the lower end portions, There is a slight margin between it and the vicinity of 24 (see FIG. 5), so that when the lid 3 is closed, the lower ends of the left and right corners 41 and 42 are the left and right corners 23 of the box 2. It is possible to prevent the lid 3 from being caught in the vicinity of the upper end portion of the 24 and to close the lid 3 smoothly. Further, in this case, the upper ends of the left and right corners 41 and 42 of the first hanging portion 33 shown in FIG. 5B are aligned with the shapes of the left and right corners 23 and 24 of the box body 2. As long as the radius of curvature is smaller than the lower ends of the left and right corners 41 and 42 of the first hanging portion 33, the upper portion and the left and right of the front wall portion 11 are formed so as to form a rounded shape. The upper parts of the wall portions 12 and 13 and the front hanging portions 34 along the outer surfaces thereof and the left and right hanging portions 35 and 36 can be brought into contact with each other or brought close to each other to effectively suppress the leakage of cold air.

1 Cold insulation box 2 Box body 3 Lid 5 Storage space 7 Opening 11 Front wall part 12 Left side wall part 13 Right side wall part 14 Rear wall part 15 Bottom wall part 16 Insulation plate member 17 Insulation plate member 18 Insulation plate member 19 Insulation plate Member 20 Insulation plate member 21 Belt 23 Box body 2 Front left corner 24 Box body 2 Front right corner 25 Core material 26 Wings 27 Hook-and-loop fastener 28 Hook-and-loop fastener 30 Top surface 31 Mounting part 32 Insulation plate Member 33 First hanging part 34 Front hanging part 35 Left hanging part 36 Right hanging part 37 Connecting part 38 Second hanging part 39 Core material 40 Hook-and-loop fastener 41 Left corner 42 Right corner 43 Upper heat insulating plate member 44 Lower insulation plate member 45 Front insulation plate member 46 Rear insulation plate member 47 Connecting part 48 Perforation 50 Perforation 51 Left corner of top front edge 52 Right corner of top front edge 53 Mounting piece 54 Mounting piece 55 Mounting piece 56 Mounting piece 57 Notch 58 Notch 59 Notch 60 Notch 61 Face fastener 62 Face fastener 63 Face fastener 64 Face fastener 65 Face fastener 66 Face fastener 67 Face fastener 68 Face fastener

Claims (5)

A box with an open top surface, including a front wall, left and right walls, a rear wall, and a bottom wall.
A lid attached to or continuously formed from the rear wall portion, comprising the lid that is rotated to open and close the opening of the box body.
The lid is a top surface located above the opening when the lid is closed, and a front hanging portion extending substantially downward from the front edge of the top surface, and is along the upper outer surface of the front wall portion. The front hanging portion and the left and right hanging portions extending substantially downward from at least the front portion of the left and right edges of the top surface are provided, and the left and right hanging portions along the upper outer surface of the left and right wall portions are provided.
The front hanging portion and the left and right hanging portions are integrally formed or connected to each other.
The lower ends of the left and right corners between the front hanging portion and the left and right hanging portions each have a rounded shape.
The left and right corners formed by the front wall portion and the left and right wall portions of the box body have an angular shape, respectively, or the roundness between the front hanging portion and the left and right hanging portions is formed. A cold storage box characterized by having a radius of curvature smaller than that of the lower ends of the left and right corners. The upper ends of the left and right corners between the front hanging portion and the left and right hanging portions match the shape of the left and right corners formed by the front wall portion and the left and right wall portions of the box body. A claim characterized in that it is formed in a rectangular shape and has an angular shape, or has a radius of curvature smaller than that of the lower ends of the left and right corners between the front hanging portion and the left and right hanging portions. The cold storage box according to 1. The cold storage box according to claim 1 or 2, wherein the upper edges of the front portions of the left and right wall portions of the box body are formed diagonally downward in the front direction. The cold insulation according to any one of claims 1 to 3, wherein the front hanging portion and the left and right hanging portions have flexibility at least in a portion located at an upper portion in a state where the lid is closed. box. The cold storage box according to any one of claims 1 to 4, wherein a drainage means for draining water accumulated inside the box is provided at the bottom of the box.

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