JP2005126072A - Foldable heat insulating container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foldable heat insulating container, which has superior heat insulating property and durability. <P>SOLUTION: The foldable heat insulating container 1 has a pair of upper/lower rectangular frames 2, 3, which are formed of counter pairs of first sides 2a, 2b and second sides 2b, 3b and of counter pairs of third sides 2c, 4b and fourth sides of 2d, 5b, respectively. A heat insulating bottom board 15 is fitted in the lower frame 3. A foldable first heat insulating side board 9 is arranged between the first side 2a of the upper frame 2 and the first side 3a of the lower frame 3, while a second heat insulating side board 10 is arranged between the second side 2b of the upper frame 2 and the second side 3b of the lower frame 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a foldable heat insulating container, and more particularly to a foldable heat insulating container useful for delivery of products that need to be kept cold or warm, such as medicines and foods.

  When transporting fresh foods, foods, medicines, etc., it is necessary to transport them at a temperature suitable for those products. Many box-shaped insulated containers are used for transportation.

Some of the heat insulating containers can be folded on the four side surfaces on the bottom surface side. By enabling folding, storage space when not in use can be saved.
JP 2000-79941 A

  However, the foldable heat insulating container has a problem that the cold insulation or the heat insulation effect is lowered because there are many gaps at the contact points between the side surfaces.

  In addition, although the foldable heat insulating container saves space when not in use, there is also a problem that the strength of the container itself is weak because it is foldable.

  Therefore, in order to increase the strength of the container itself, a fixing means such as a metal rivet, a reinforcing frame for a corner cover, and the like had to be attached to the panel forming the side surface of the box-shaped heat insulating container.

  However, the panel is formed of a heat insulating material made of resin, and the corner cover is made of metal. Thus, by combining with other materials, the strength of the entire container is unavoidably reduced due to insufficient bonding strength of the corner cover even though the strength of the panel itself is high.

  Then, this invention is made | formed in view of such a technical background, and makes it a subject to provide the folding-type heat insulation container excellent in heat insulation.

  Moreover, this invention makes it a subject to provide the folding-type heat insulation container excellent in intensity | strength durability, without compounding a different raw material.

  The present invention employs the following means in order to solve the above problems. That is, the present invention provides a pair of rectangular frame bodies, each consisting of a pair of opposed first and second sides and a pair of opposed third and fourth sides, on the upper and lower sides. Is provided with a heat insulating bottom plate, a first heat insulating side plate and a second heat insulating side plate that can be folded between the first side and the second side of the upper frame and the first side and the second side of the lower frame, respectively. A third heat insulating side plate / fourth heat insulating side plate to be installed between each third side / fourth side of the upper frame and each third side / fourth side of the lower frame, It is characterized in that it is hingedly connected to any of the third and fourth sides of the upper frame or each of the third and fourth sides of the lower frame.

That is, in order to assemble the folding heat insulating container of the present invention, first, the folded first heat insulating side plate and second heat insulating side plate are returned to their original states. And a 3rd heat insulation side plate and a 4th heat insulation side plate are moved to the position which supports an upper frame and a lower frame, maintaining the state of a 1st heat insulation side plate and a 2nd heat insulation side plate, and it assembles into a box shape.

  Moreover, when folding the folding-type heat insulation container of this invention, the support state of the 3rd heat insulation side plate and the 4th heat insulation side plate which are supporting the upper side frame and the lower side frame is cancelled | released by this reverse procedure. Then, the first heat insulating side plate and the second heat insulating side plate are folded.

  By such an order, the insulated container of the present invention can be folded without the need for a dedicated component for folding.

  Moreover, the 1st heat insulation side plate and 2nd heat insulation side plate of this invention are divided | segmented into the up-down direction, and are comprised by the some heat insulation side plate part. And these heat insulation side-plate parts can be folded by using the sewing location of an aluminum laminated film as a hinge, It is characterized by the above-mentioned.

  The first heat insulating side plate and the second heat insulating side plate are divided in the vertical direction, for example, two heat insulating side plate portions are arranged side by side to form a first heat insulating side plate and a second heat insulating side plate. This is the case. The two heat insulating side plate portions are hinge-coupled by sewing so that they can be refracted in the direction in which their outer surfaces come into contact with each other. That is, the first heat insulating side plate can be refracted in an inverted U shape toward the heat insulating bottom plate, and the second heat insulating side plate can be bent in a V shape toward the heat insulating bottom plate and folded.

  In addition, the first heat insulating side plate and the second heat insulating side plate that can be folded between the first side and the second side of the upper frame according to the present invention and the first side and the second side of the lower frame, respectively. The sheet-like cover which covers the outer side of this is stretched.

  The seat upper cover according to the present invention is in a tensioned state when the folded first and second heat insulation side plates and the second heat insulation side plate are spread. As a result, the assembled insulated container can be protected from external damage and the aesthetic appearance of the assembled insulated container can be improved.

  Further, the upper frame and the lower frame according to the present invention are made of aluminum or resin. The upper and lower four corners of each frame are covered with an upper corner cover or a lower corner cover. In addition, when the upper corner cover is attached to the upper frame, the upper end of the upper corner cover is preferably higher than the upper surface of the upper frame (that is, higher than the upper surface of the heat insulating container).

  By projecting the upper end of the upper corner cover to a position higher than the upper surface of the heat insulating container, the stacked heat insulating containers can be prevented from dropping when the heat insulating containers of the present invention are stacked. That is, when the heat insulating containers are stacked, the protrusion of the upper corner cover serves as a fall prevention unit that prevents the stacked heat insulating containers from falling.

  Furthermore, it is preferable that the first heat insulating side plate, the second heat insulating side plate, the third heat insulating side plate, the fourth heat insulating side plate, and the heat insulating bottom plate according to the present invention include a heat insulating material and an aluminum laminated film that wraps the heat insulating material.

  Examples of the heat insulating material according to the present invention include foaming materials such as elastic polyethylene terephthalate, polystyrene, polyethylene, polypropylene, and urethane. Such a heat insulating material is sewn so as to be in a state where an aluminum laminated film is wrapped. By using this aluminum laminated film for each heat insulating side plate (first to fourth heat insulating side plates), a hinge connection by sewing became possible. As a result, a hinge made of a material different from that of each heat insulating side plate is not attached, and a decrease in durability due to the difference between different materials can be prevented.

The first to fourth heat insulating side plates and the heat insulating bottom plate according to the present invention are formed of an elastic heat insulating material. Therefore, it becomes possible to adhere | attach a mutual heat insulation board (a 1st-4th heat insulation side board, a heat insulation bottom board) with a high adhesion rate.

  Furthermore, the foldable heat insulating container according to the present invention can improve heat insulating properties by providing a removable cover plate in the upper frame.

  Further, the upper frame body is provided on both of the upper end portion and the lower end portion of the first heat insulating side plate and the second heat insulating side plate according to the present invention, and the upper end portion and the lower end portion of the third heat insulating side plate and the fourth heat insulating side plate. And the press-fit part slidably press-fitted in the longitudinal direction of the groove part provided along the inner edge of the lower frame is provided.

  Each press-fitted portion is formed so that the portion press-fitted into the groove is thicker than the size of the groove. For example, the upper and lower ends of the first heat insulating side plate are provided with an extra aluminum laminated film, and the aluminum laminated film at the ends of the upper end and the lower end is wound to form a press-fit portion, or the laminated aluminum laminate Put a resin core in the center of the film.

  In addition, the press-fitting portion is press-fitted into the groove and thus does not come out of the groove, but is slidable in the longitudinal direction of the groove. In addition, the width | variety of the edge part of each heat insulation side plate is shorter than the width | variety of the longitudinal direction of a groove | channel, and some play is provided.

  Thus, since the play is provided in the groove, each heat insulating side plate can be smoothly moved when the heat insulating box is assembled or folded.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the folding-type heat insulation container excellent in heat insulation and durability.

Hereinafter, the foldable heat insulating container in the present embodiment will be described with reference to the drawings.
(Constitution)
As shown in FIG. 1, the foldable heat insulating container 1 of the present embodiment is a frame body that has a rectangular shape with a pair of opposed first and second sides and a pair of opposed third and fourth sides. Are provided in pairs. The upper frame body is referred to as the upper frame body 2, and the lower frame body is referred to as the lower frame body 3. A heat insulating bottom plate 15 is fitted in the frame of the lower frame 3.

  Further, between the first side 2 a of the upper frame 2 and the first side 3 a of the lower frame 3 and between the second side 2 b of the upper frame 2 and the second side 3 b of the lower frame 3. In addition, a first heat-insulating side plate 9 and a second heat-insulating side plate 10 that are foldable are provided.

  As shown in FIG. 2, the first heat insulating side plate 9 is hinged to the heat insulating bottom plate 15 by sewing. In addition, since the 1st heat insulation side plate 9 and the 2nd heat insulation side plate 10 are carrying out the same attachment method, drawing about the 2nd heat insulation side plate 10 is abbreviate | omitted. The first heat insulating side plate 9 is sewn to the heat insulating bottom plate 15 so as to be movable within a range of 90 degrees from the heat insulating bottom plate 15 at a position located inward from the edge of the heat insulating bottom plate 15 by the thickness of the first heat insulating side plate 9.

  Moreover, the 1st heat insulation side plate 9 and the 2nd heat insulation side plate 10 are comprised by the two heat insulation side plate part each divided | segmented into the up-down direction. These heat insulating side plate portions 8a and 8b are hinged by sewing so that they can be refracted from a position where the surfaces are flush with each other when the folding heat insulating container 1 is assembled to a position where the flush surfaces are in contact with each other. Has been.

Furthermore, the foldable heat insulating container 1 according to the present embodiment is provided between each third side 2c of the upper frame 2 and the third side 3c of the lower frame 3 and between the fourth side 2d of the upper frame 2 and the lower side. A third heat insulating side plate 11 and a fourth heat insulating side plate 12 are provided between the side frame 3 and the fourth side 3d.

  And the two heat insulation side board parts sew together each other aluminum laminated film so that it may refract to the heat insulation bottom board 15 side. This sewing part functions as a hinge.

  The first heat insulating side plate 9, the second heat insulating side plate 10, the third heat insulating side plate 11, and the fourth heat insulating side plate 12 are made of a core material (not shown) made of foamed resin (heat insulating material) and an aluminum laminated film that wraps the core material. Is formed. Examples of the heat insulating material include foamed materials such as elastic polyethylene terephthalate, polystyrene, polyethylene, polypropylene, and urethane.

  Further, the foldable heat insulating container 1 of the present embodiment is foldable between the first side and the second side of the upper frame 2 and the first side and the second side of the lower frame 3, respectively. A sheet-like cover 13 covering the outside of the first heat insulating side plate 9 and the second heat insulating side plate 10 is stretched. In the present embodiment, the sheet cover 13 is made of polyester.

  Moreover, as shown in FIG. 3, the groove part 16 is provided in the inside of the 1st edge | side 2a of the upper side frame 2, and the 2nd edge | side 2b along those longitudinal directions. As shown in FIG. 4, the end portions of the first heat insulating side plate 9, the second heat insulating side plate 10, and the sheet-like cover 13 are press-fitted into these groove portions 16. The end of the sheet-like cover 13 on the lower frame 3 side is sewn to a hinge coupling portion between the lower heat insulating side plate 9b and the heat insulating bottom plate 15.

  Although not shown, a groove portion is also provided on the inner side of the third side 2c and the fourth side 2d of the upper frame 2. One end of the third heat insulating side plate 11 and the fourth heat insulating side plate 12 having the press-fitting portion 17 is press-fitted into these groove portions 16 (see FIG. 1).

  Therefore, an aluminum laminated film is provided on the upper end portions of the first heat insulating side plate 9, the second heat insulating side plate 10, and the sheet-like cover 13 (T in FIG. 3). It is preferable that the length of the extra portion is at least as much as the thickness of each heat insulating side plate. Each end portion is provided with a press-fitting portion 17 for press-fitting those end portions into the groove portion 16. The press-fit portion 17 is formed by forming a resin having elasticity into a rail shape, and the press-fit portion 17 is sewn along the end portions of the first heat insulating side plate 9, the second heat insulating side plate 10, and the sheet-like cover 13. Yes.

  Further, the first heat insulating side plate 9, the second heat insulating side plate 10, and the sheet-like cover 13 are slidable in the longitudinal direction of the groove portion 16. This is because the length in the longitudinal direction of the groove 16 and the width in the longitudinal direction of the end portions of the first heat insulating side plate 9, the second heat insulating side plate 10, and the sheet-like cover 13 are shorter than the length in the longitudinal direction of the groove 16. This is possible by providing stoppers 14 that restrict the sliding amount of the first heat insulating side plate 9, the second heat insulating side plate 10, and the sheet-like cover 13 into which the end portions are press-fitted at both ends of the groove portion 16. It has become.

  With this stopper 14, each heat insulating side plate and the sheet-like cover 13 have a play in the groove portion 16, whereby each heat insulating side plate moves smoothly when the folding heat insulating container 1 of the present embodiment is folded. The container can be folded or assembled smoothly.

Moreover, as shown in FIG. 1, the upper corner cover 18 and the lower corner cover 19 which cover each four corners of the upper side frame 2 and the lower side frame 3 which concern on this embodiment are provided. FIG. 5 is a perspective view showing a state in which the lower corner cover of another heat insulating container overlaps the upper corner cover 18 of the present embodiment. The corner cover 19 is denoted by the same reference numeral as the lower corner cover 19 of the present embodiment, and the lower corner cover 19 according to the present embodiment will be described.

  As shown in FIG. 5, the upper corner cover 18 includes a bottom surface 20 along the bottom surface of the corner of the upper frame 2, a side wall portion 23 along each side that is erected in an L shape from the bottom surface 20, and It is comprised from the spacer 22 for filling up the clearance gap formed in the connection location (corner part) of the 1st side-the 4th side which comprises the upper frame 2. As shown in FIG. The spacer 22 is provided at a corner portion formed by the side wall portion 23 erected in an L shape.

  Further, the upper corner cover 18 according to the present embodiment is fixed to the corner portion of the upper frame body 2 with screws or rivets. At this time, the upper end of the upper corner cover 18 is positioned higher than the upper surface of the upper frame 2. That is, the upper corner cover 18 is attached to the corner of the frame body so that the upper end of the side wall portion 23 protrudes above the upper surface of the upper frame body 2.

  The lower corner cover 19 includes a bottom surface 24 that covers the lower surface of the lower frame body 3 and the corner bottom surfaces of the heat insulating bottom plate 15, and a side wall portion 25 that stands in an L shape from the bottom surface 24.

  In the lower corner cover 19, feet 26 are further suspended from the lower surface of the bottom surface 24. The foot part 26 is provided in an L shape so as to follow the side wall part 25. As shown in FIG. 5, the foot portion 26 engages with the L-shaped side wall portion 23 of the upper corner cover 18 when the heat insulating containers 1 are stacked up and down. FIG. 5 is a perspective view showing a state in which the upper corner cover 18 and the lower corner cover 19 overlap with each other, but is shown in a state in which the foot portion 26 is rotated so as to be clear.

Furthermore, the foldable heat insulating container 1 of the present embodiment has a configuration in which an openable / closable lid plate 8 is fitted in the upper frame 2. The lid plate 8 of the present embodiment is formed of the same material (material) as the first heat insulating side plate 9, the second heat insulating side plate 10, the third heat insulating side plate 11, the fourth heat insulating side plate 12, and the heat insulating bottom plate 15. .
The above is the configuration of the folding heat insulating container 1 of the present embodiment.

<Assembly method>
Next, an assembling method (procedure) of the folding heat insulating container 1 of the present embodiment will be described.

  The whole perspective view of the state which folded the folding-type heat insulation container 1 of this embodiment in FIG. 6 is shown. In the state where the heat insulation container 1 of the present embodiment is folded, the upper heat insulation side plate portion 9a and the lower heat insulation side plate portion 9b forming the first heat insulation side plate 9 and the upper heat insulation side plate portion 10a and the lower heat insulation side plate forming the second heat insulation side plate 10 are formed. The portion 10b is refracted toward the heat insulating bottom plate 15 so that the side surfaces of the heat insulating side plate portions are in surface contact with each other with the sewing parts as axes. The sheet-like cover 13 is also folded along the folding of the first heat insulating side plate 9 and the second heat insulating side plate 10.

  At this time, the third heat insulating side plate 11 and the fourth heat insulating plate material side plate 12 are pressed toward the heat insulating bottom plate 15 and are accommodated in the inner frame of the upper frame 2.

  The whole perspective view in the middle of assembling the folding-type heat insulation container 1 of this embodiment in FIG. 7 is shown. When assembling the heat insulating container 1, the upper frame 2 is pulled up horizontally (R direction in FIG. 7), and the folded first heat insulating side plate 9 and second heat insulating side plate 10 are stretched.

  Immediately thereafter, as shown in FIG. 8, the third heat insulating side plate 11 and the fourth heat insulating side plate 12 are moved to the heat insulating container until the free ends of the third heat insulating side plate 11 and the fourth heat insulating side plate 12 come into contact with the heat insulating bottom plate 15 vertically. 1 is moved to the inner space side (heat insulating bottom plate 15 side: S direction in FIG. 8).

  As described above, the heat insulating container 1 of the present embodiment does not use a metal hinge (a material different from each heat insulating plate) as a folding mechanism. Therefore, it is possible to prevent the strength of the container itself from being lowered due to the combination of different materials.

  Furthermore, the heat insulation container 1 of the present embodiment has a mechanism in which the first heat insulation side plate 9 and the second heat insulation side plate 10 are folded at a sewing point. Therefore, it is also possible to create a container having a height twice that of a container having a conventional folding mechanism in which four side plates are folded toward the bottom plate.

  This is because the conventional folding mechanism cannot be folded within the size of the bottom plate unless the size of the four side plates excluding the bottom plate is the same as the size of the bottom plate at the maximum.

  In the heat insulation container 1 of the present embodiment, the first heat insulation side plate 9 and the second heat insulation side plate 10 are each half the size of the heat insulation side plate portions (upper heat insulation side plate portions 9a, 10a, lower heat insulation side plate portions 9b, 10b). Since the hinges are joined so as to be folded, the size of the heat insulating side plate in the folded state may be the size of the bottom plate.

  Thereby, since the height of the heat insulation container 1 of this embodiment can be arbitrarily set at the time of design, the heat insulation container 1 of various sizes can be made only with the same parts. Along with this, the third heat insulating side plate 11 and the fourth heat insulating side plate 12 also sew a plurality of heat insulating plates so that their heights are equal to the first heat insulating side plate 9 and the second heat insulating side plate 10, respectively. It is good also as a structure couple | bonded with a hinge so that a heat insulation side board part may be folded up.

  In addition, although the 3rd heat insulation side plate 11 and the 4th heat insulation side plate 12 of this embodiment demonstrated moving to the interior space side of the heat insulation container 1, it is made to move to the heat insulation bottom plate 15 side from the outer side of the heat insulation container 1. FIG. You can also.

  Moreover, the folding-type heat insulation container 1 of this embodiment is provided with corner covers at the upper and lower corners. Since the upper corner cover 18 protrudes from the upper surface of the upper frame body 2, the stacked heat insulating containers can be prevented from dropping.

  Further, the lower corner cover 19 according to the present embodiment has a foot portion 26 protruding from the lower surface thereof. As shown in FIG. 4, the foot portion 26 engages with the upper edge of the upper corner cover 18 of the heat insulating container located below when the heat insulating containers are stacked. As a result, it is possible to prevent the heat-insulating containers stacked on the top from falling or rattling.

  In the heat insulating container 1 of the present embodiment, the heat insulating material forming the first heat insulating side plate 9, the second heat insulating side plate 10, the third heat insulating side plate 11, and the fourth heat insulating side plate 12 is an elastic body. As a result, as shown in FIG. 9, when these heat insulating side plates are assembled without gaps, the adhesion of the joined portions of the four heat insulating plates is increased, and the heat insulating properties can be improved.

It is a whole perspective view of the folding-type heat insulation container of this embodiment. It is a figure which shows the sewing state of the 1st heat insulation side board which concerns on this embodiment, and a heat insulation bottom board. It is a disassembled perspective view which shows the attachment state of the heat insulation side plate which concerns on this embodiment. It is a figure which shows the state of the heat insulation side plate which concerns on this embodiment, and a groove part. It is a perspective view which shows the relative relationship of the upper corner cover and lower corner cover which concern on this embodiment. It is a perspective view of the state by which the foldable heat insulation container of this embodiment was folded. It is a perspective view of the state in the middle of folding the folding-type heat insulation container of this embodiment. It is a perspective view of the state in the middle of folding the folding-type heat insulation container of this embodiment. It is a figure which shows the fitting state of the 1st heat insulation side plate which concerns on this embodiment, the 2nd heat insulation side plate, the 3rd heat insulation side plate, and the 4th heat insulation side plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding type heat insulation container 2a, 3a 1st edge | side 2b, 3b 2nd edge | side 2c, 3c 3rd edge | side 2d, 3d 4th edge | side 2 Upper frame body 3 Lower frame body 8 Cover plate 9 First heat insulation side plate 9a, 10a Top Heat insulation side plate portions 9b, 10b Lower heat insulation side plate portion 10 Second heat insulation side plate 11 Third heat insulation side plate 12 Fourth heat insulation side plate 13 Sheet cover 14 Stopper 15 Heat insulation bottom plate 16 Groove portion 17 Press fit portion 18 Upper corner cover 19 Lower corner cover 20, 24 Bottom 22 Spacer 23, 25 Side wall 26 Foot

Claims (7)

  A pair of frames on a rectangle composed of a pair of first and second sides facing each other and a pair of third and fourth sides facing each other are provided vertically, and a heat insulating bottom plate is provided on the lower frame, A first heat-insulating side plate and a second heat-insulating side plate that are foldable between the first side and the second side of the upper frame and the first and second sides of the lower frame are hinged to each other, and the upper frame The third heat insulating side plate and the fourth heat insulating side plate to be installed between the third side and the fourth side of the lower side frame and the third side and the fourth side of the lower side frame respectively. A foldable heat insulating container characterized in that it is hinged to any one of the third side and the fourth side of the side / fourth side or the lower frame.   A sheet shape that covers the outside of the first heat insulating side plate and the second heat insulating side plate that can be folded between the first side and the second side of the upper frame and the first side and the second side of the lower frame, respectively. The folding insulation container according to claim 1, wherein a cover is stretched. The upper frame body and the lower frame body are made of aluminum or resin, and an upper corner cover and a lower corner cover that cover the upper and lower four corners of each frame body are provided,
The foldable heat insulating container according to claim 1 or 2, wherein when the upper corner cover is attached to the upper frame, an upper end of the upper corner cover is positioned higher than an upper surface of the upper frame. .   The first heat insulating side plate, the second heat insulating side plate, the third heat insulating side plate, and the fourth heat insulating side plate are composed of a heat insulating core material and an aluminum laminated film that wraps the core material. The foldable heat insulating container according to any one of 3 above.   The foldable heat insulating container according to any one of claims 1 to 4, wherein a removable cover plate is provided in the upper frame.   The first heat insulating side plate and the second heat insulating side plate are composed of a plurality of heat insulating side plate portions divided in the vertical direction, and these heat insulating side plate portions can be folded using a sewing point of the aluminum laminated film as a hinge. The folding-type heat insulation container in any one of Claims 1-5.   Both the upper end portion and the lower end portion of the first heat insulating plate and the second heat insulating plate, and either the upper end portion or the lower end portion of the third step heat plate or the fourth step heat plate have the upper frame body. And a press-fit portion slidably press-fitted in a longitudinal direction of a groove portion provided along an inner edge of the lower frame body. Insulated container.

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