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WO2014141839A1 - Boîte de stockage au froid repliable - Google Patents

Boîte de stockage au froid repliable Download PDF

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Publication number
WO2014141839A1
WO2014141839A1 PCT/JP2014/053967 JP2014053967W WO2014141839A1 WO 2014141839 A1 WO2014141839 A1 WO 2014141839A1 JP 2014053967 W JP2014053967 W JP 2014053967W WO 2014141839 A1 WO2014141839 A1 WO 2014141839A1
Authority
WO
WIPO (PCT)
Prior art keywords
folding
side wall
partition portion
box
hollow
Prior art date
Application number
PCT/JP2014/053967
Other languages
English (en)
Japanese (ja)
Inventor
田中　幹彦
純子 栗原
太根　将博
Original Assignee
積水化成品工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 積水化成品工業株式会社 filed Critical 積水化成品工業株式会社
Publication of WO2014141839A1 publication Critical patent/WO2014141839A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3823—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of different materials, e.g. laminated or foam filling between walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/182—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected comprising two side walls hinged along the sides of a base panel and to an upper frame and two other side walls being hinged only to the upper frame
    • B65D11/1826—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected comprising two side walls hinged along the sides of a base panel and to an upper frame and two other side walls being hinged only to the upper frame and one or more side walls being foldable along a median line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3818—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed with double walls, i.e. hollow

Definitions

  • the present invention relates to a folding cold box used to store, store, or transport various articles.
  • Folding boxes are widely used because the volume can be reduced in the absence of containment and the transportation cost and storage cost when not in use can be reduced. It is described in.
  • the folding box described in Patent Document 1 is a folding box made of synthetic resin, and the top sides of a pair of first side walls that regulate the height are hinged to two opposite sides of the top frame. The other two opposite sides are hinged to the upper sides of a pair of second side walls that are foldable by hinges at the middle, and the lower sides of the second side walls are hinged to the two opposite sides of the bottom frame, respectively. It is a connected form.
  • the member corresponding to the second side wall is a bending in which the upper partition portion and the lower partition portion, which are arranged in parallel in the vertical direction, and the upper partition portion and the lower partition portion are connected. It consists of parts. And the thickness of a bending part is made thinner than the thickness of an upper division part and a lower division part.
  • the second side wall of this form can be integrally molded, and durability can be improved by selecting a material.
  • heat insulation performance is improved as compared with a side wall provided with a hinge connecting portion in the middle.
  • the upper partition part and the lower partition part have a hollow part, and from this, the heat insulation performance is improved.
  • the second side wall in the folding box of the form described in Patent Document 1 is the second side wall of the form described in Patent Document 2, that is, the upper partition part and the lower partition part arranged in parallel in the vertical direction, and the above
  • a folding box having improved durability and improved heat insulation may be obtained.
  • the hermeticity and cold insulation performance of the container have not been studied.
  • the use of a foamed resin cold storage container can effectively suppress the temperature rise in the container, but it is relatively large in order to accommodate relatively large items such as refrigerated and frozen products.
  • a cold storage container is required.
  • a foldable cold box that can be folded compactly after taking out a product and that has the necessary cold performance.
  • folding containers that contain products such as beverages and food delivered to retail stores such as convenience stores are unloaded at each store, and then the products are displayed on refrigerated shelves and freezer shelves. May be temporarily kept in the store.
  • the cooling performance has not been sufficiently studied. For this reason, there is a need for a folded cold box that can cool the product more effectively, such as temporarily holding it after delivery.
  • the present invention has been made in view of the circumstances as described above, and includes an upper partition portion, a lower partition portion, and a bent portion that connects the upper partition portion and the lower partition portion on some side walls. It is an object of the present invention to provide a folding cold box with improved cooling performance in a folding box using side walls of different shapes.
  • the folding cold insulation box according to the present invention includes a top frame, a bottom plate and a bottom frame, a pair of first side walls hinged to either the top frame or the bottom frame, and a top frame with the top side being the bottom frame.
  • a folding cool box having a pair of bent and standing second side walls hinged to the lower side, and a lid, wherein the second side wall includes an upper partition portion and a lower partition which are arranged in parallel in the vertical direction.
  • the second side wall has a bent portion.
  • the upper partition portion is hinged to the top frame
  • the lower partition portion is hinged to the bottom frame so that the lower partition portion can be turned inside the folding cold box. Therefore, when folding the cold insulation box, the upper side wall and the lower side wall part of the second side wall are rotated by rotating the first side wall so that the top and bottom frames are close to each other. Are turned so that each of them falls down, and the bent portion between the upper compartment portion and the lower compartment portion is bent. As a result, the second side wall is bent and the upper compartment portion and the lower compartment portion are folded to fold the folding cool box.
  • the bottom plate, the first side wall, the upper and lower partition portions of the second side wall, and the lid body define a cool space.
  • all or the upper partition part and the lower partition part constituting at least the first side wall and the second side wall of at least the inside of the part facing the cold insulation space defined by them.
  • the air in the hollow part in the member having the hollow part has a heat insulating effect against heat transmitted from the outside to the cold-reserving space through the member.
  • the bottom plate, the first side wall, the upper and lower partition portions constituting the second side wall, and the lid body having the hollow portion.
  • the thickness of the part having the hollow part is preferably 5 mm or more and 50 mm or less, and the thickness of the wall member defining the hollow part is preferably 0.5 mm or more and 5 mm or less.
  • a reinforcing recess is formed in the wall member that defines at least one of the hollow portions.
  • the wall member can be supported by the reinforcing concave portion to prevent deformation.
  • the bending strength of the wall member can be improved by the reinforcing recess. Therefore, providing each of the members with reinforcing recesses as necessary prevents the members from being deformed by being dented by an external force, thereby improving the durability of the folding cold box.
  • a stepped portion for supporting an end portion of the regenerator material is formed on the inner side surface of the top frame.
  • the bent portion is preferably thinner than the upper compartment portion and the lower compartment portion so as to be easily folded.
  • the second side wall fills a space formed on the side of the bent portion because the thickness of the bent portion is smaller than the thickness of the upper partition portion and the lower partition portion when standing upright.
  • a spacer may be provided.
  • the hollow portion is filled with a heat insulating material.
  • the heat insulating performance of the folding cold box can be further improved as compared with the case where the hollow portion is hollow.
  • the bottom plate, the first side wall, the upper partition portion and the lower partition portion constituting the second side wall, and the lid body having the hollow portion is 10 mm or more and 100 mm or less, and the wall member that defines the hollow portion has a thickness of 0.5 mm or more and 5 mm or less.
  • the heat insulating material is preferably a foamed resin such as a polyurethane resin.
  • the wall member is preferably made of a polyolefin resin.
  • strength and durability of a wall member are securable.
  • sufficient strength and durability can be maintained by configuring the wall member with a polyethylene resin.
  • FIG. 1 The perspective view which shows the state which each side wall stood in one Embodiment of the folding cool box by this invention.
  • the top view of the folding cool box shown in FIG. The bottom view of the folding cool box shown in FIG. Sectional drawing which follows the III-III line
  • the figure which shows the folding middle of the folding cool box shown in FIG. The figure which shows after the folding of the folding cool box shown in FIG.
  • the front view which shows the state which the 2nd side wall of the folding cool box shown in FIG. 1 stood up.
  • FIG. 4 in other embodiment of the folding cool box by this invention.
  • the perspective view of the bottom frame shown in FIG. The figure corresponded in FIG. 4 in other embodiment of the folding cool box by this invention.
  • Sectional drawing which expanded the XII part shown in FIG. The graph which shows the relationship between the temperature of the water in the folding cool box by the Example of this invention, and elapsed time.
  • the illustrated folding cool box A has a rectangular shape in plan view, the top frame 10 and the bottom frame 20, the bottom plate 23, the pair of first side walls 30, 30 that form a rectangular shape, the pair of second side walls 40, 40, and It is comprised with the cover body 60.
  • Each member constituting the folding cold box A defines a cold space R inside the folding cold box A by the lid 60 closing the opening 13 inside the top frame 10.
  • each member except the top frame 10 and the bottom frame 20 has a hollow portion inside the portion facing the cold insulation space R.
  • each member which comprises the folding cool box A is demonstrated in detail.
  • the top frame 10 is composed of opposed short side frames 11, 11 and opposed long side frames 12, 12, and the top surface is an opening 13 that can be sealed by a lid 60.
  • An appropriate number of pairs (two pairs in the illustrated example) of first hinge convex pieces 14 are integrally formed in the vicinity of the upper end on the inner side of each short side frame 11 shown in FIG.
  • An appropriate number (three in the illustrated example) of second hinge convex pieces 15 are integrally formed at a position near the lower end inside the side frame 12.
  • Steps 12 a and 12 a that support both ends of the regenerator C are formed above the second hinge convex piece 15 and in the middle in the vertical direction of the inner surfaces of the long side frames 12 and 12 of the top frame 10.
  • the step portions 12a, 12a are formed in steps so as to protrude from the inside of the opposed long side frames 12, 12 to the inside of the cold insulation box A.
  • the step portions 12 a and 12 a support the cold storage material C on the inside of the top frame 10 by supporting both ends of the plate-shaped cold storage material C having a rectangular shape in plan view from below. It is formed to be able to.
  • the step portion 12 a is formed over the entire width of the inner side surfaces of the long side frames 12, 12 of the top frame 10, and three cold storage materials C can be arranged side by side along the long side frame 12.
  • Two ribs 12b for partitioning the three cold storage materials C are provided on the stepped portion 12a so as to protrude with an interval corresponding to the width of the cold storage material C.
  • the regenerator material C is arranged side by side on the stepped portion 12a
  • the rib 12b contacts the side surface of the end portion in the longitudinal direction of each regenerator material C to prevent the regenerator material C from moving in the width direction.
  • the top frame 10 is molded by an injection molding method using a resin such as a polyolefin-based resin.
  • the bottom frame 20 has the same dimensions as the top frame 10, and also has short side frames 21, 21 that face each other and long side frames 22, 22 that face each other. It is closed by a bottom plate 22 a formed integrally with the longitudinal frame 22.
  • a convex portion 24 is integrally formed at a substantially central portion inside each short-side frame 21.
  • a bulging portion 25 is formed on the long side frame 22 so as to extend substantially inward.
  • the second hinge formed inside the long side frame 12 of the top frame 10 in the bulging portion 25.
  • a recess 26 for receiving a hinge convex piece 43 formed at the lower end of the lower partition portion 40B of the second side wall 40 to be described later is formed at a location facing the convex piece 15 for use.
  • the bottom frame 20 is integrally molded by an injection molding method using a resin such as a polyolefin resin.
  • the bottom plate 23 is a hollow material formed by using a resin such as a polyolefin-based resin so as to have a hollow portion 23b inside the wall member 23a as shown in FIG. 3 by a blow molding method (or an insert blow molding method). is there.
  • the hollow portion 23b is formed inside the portion of the bottom plate 23 that faces the cold insulation space R.
  • the hollow portion 23b is formed over the entire region of the bottom plate 23 facing the cold insulation space R, except for a region where a reinforcing recess D described later is formed.
  • the bottom plate 23 is fitted inside the bottom frame 20, and is fixed to the bottom frame 20 by the convex portion 20 a of the bottom frame 20 being engaged with the concave portion 23 c formed on the peripheral edge portion thereof, thereby closing the bottom surface of the bottom frame 20. It is arranged on the bottom plate 22a.
  • the thickness T1 of the portion having the hollow portion 23b of the bottom plate 23 is preferably 5 mm or more and 50 mm or less.
  • the wall thickness of the inner and outer wall members 23a and 23a defining the hollow portion 23b of the bottom plate 23 is preferably 0.5 mm or more and 5 mm or less.
  • the bottom plate 23 has a plurality of reinforcing recesses D formed in the wall member 23a.
  • a total of seven reinforcing recesses D are formed, one at the center of the bottom surface of the bottom plate 23 and three along the long side frames 22 and 22 of the bottom frame 20.
  • the reinforcing recess D is formed by sinking a wall member 23 a on the bottom surface side of the bottom plate 23, that is, on the outer side of the folding cold box A.
  • the reinforcing recess D has a cylindrical inner wall Da extending between the wall member 23a on the upper surface side and the wall member 23a on the bottom surface side of the bottom plate 23 perpendicularly thereto.
  • the wall member 23a on the upper surface side of the bottom plate 23, that is, the inner side of the folding cool box A is positioned below the upper end of the inner surface of the short side frame 21 and the long side frame 22, and The cushion material is filled.
  • the first side wall 30 includes a side wall body 31 and two sets of hinge convex pieces 32 integrally formed on the upper end surface thereof by insert molding.
  • the side wall body 31 is a hollow material formed by using a resin such as a polyolefin-based resin so as to have a hollow portion 31b inside the wall member 31a shown in FIG. 4 by a blow molding method (or an insert blow molding method).
  • the hollow portion 31b is formed inside a portion of the side wall body 31 that faces the cold insulation space R. In this example, the hollow portion 31b is formed over the entire region of the side wall main body 31 facing the cold insulation space R except for a region where a reinforcing recess D described later is formed.
  • thickness T2 of the part which has the hollow part 31b of the side wall main body 31 is 5 mm or more and 50 mm or less.
  • the wall thickness of the inner and outer wall members 31a and 31a defining the hollow portion 31b of the side wall body 31 is preferably 0.5 mm or more and 5 mm or less.
  • the wall member 31 a of the side wall body 31 is formed with a plurality of reinforcing recesses D similar to the bottom plate 23.
  • two reinforcing recesses D of the side wall main body 31 are formed side by side in the central portion in the height H1 direction with a gap in the lateral width W1 direction.
  • the lateral width W ⁇ b> 1 of the side wall main body 31 is substantially equal to the distance between the insides of the long side frames 12, 12 facing the top frame 10 (the distance between the insides of the long side frames 22, 22 of the bottom frame 20 facing each other).
  • the height H ⁇ b> 1 is 1 ⁇ 2 of the distance between the short side frames 11, 11 of the top frame 10 facing each other (the distance between the short side frames 21, 21 of the bottom frame 20 facing each other). In the range which does not exceed, it sets suitably according to the height which the folding cool box A to obtain is required.
  • the two pairs of hinge convex pieces 32, 32 of the first side wall 30 are formed at positions corresponding to the first hinge convex pieces 14, 14 formed inside the short side frame 11 of the top frame 10.
  • Each of the hinge convex pieces 32 is fitted (or fitted) between the first hinge convex pieces 14 as shown in the figure.
  • a recessed portion 33 (see FIG. 4) is formed at the lower end portion of the side wall main body 31 at a position facing the convex portion 24 formed inside the short side frame 21 of the bottom frame 20.
  • the hinge convex piece 32 is preferably a non-foamed molded product of a resin such as polyolefin resin.
  • the hinge convex pieces 32, 32 formed on the upper end surface of the first side wall 30 are internally fitted to the first hinge convex pieces 14, 14 formed on the inner side of the short side frame 11 of the top frame 10 (or 1), the first side wall 30 is hingedly connected to the short side frame 11 side of the top frame 10, and as shown by the phantom line in FIG.
  • the hinge connecting portion can be used as a fulcrum and can be turned in the range of 90 degrees inside the cold insulation box A. In the vertical posture, the lower end surface of the bottom frame 20 is brought into contact with the bottom frame 20, and the convex portion 24 formed inside the short side frame 21 of the bottom frame 20 enters the recessed portion 33 formed in the lower end. It becomes.
  • the first side wall 30 regulates the height of the folding cold box A and stabilizes the standing posture.
  • the first side wall 30 is accommodated in the upper region of the side walls 11, 12 of the top frame 10 by turning upward to the horizontal posture inside the folding cool box A.
  • the second hinge convex piece 15 formed on the inner side of the longitudinal side wall 12 of the top frame 10 is more than the first side wall 30 in a state where the first side wall 30 is housed in the top frame 10 in a horizontal posture. Is also formed at a lower position.
  • the second side wall 40 has a rectangular shape in side view as a whole, and includes an upper partition portion 40A and a lower partition portion 40B arranged in parallel in the vertical direction, and the upper partition portion 40A and the lower portion. It is formed by a bent portion 40C connecting the partition portion 40B.
  • the upper partition portion 40A and the lower partition portion 40B have the same dimensions, and both are rectangular in a side view.
  • the upper partition portion 40A and the lower partition portion 40B are formed so as to have a hollow portion 40b inside the wall member 40a shown in FIG. 3 by a blow molding method (or insert blow molding method) using a resin such as polyolefin resin. is doing.
  • the hollow portion 40b is formed inside a portion of the upper partition portion 40A (lower partition portion 40B) that faces the cold insulation space R.
  • the hollow portion 40b is formed over the entire region of the upper partition portion 40A (lower partition portion 40B) facing the cold insulation space R, except for the formation region of the reinforcing recess D described later.
  • the thickness T3 of the portion having the hollow portion 40b of the upper partition portion 40A (lower partition portion 40B) is preferably 5 mm or more and 50 mm or less.
  • the wall thickness of the inner and outer wall members 40a, 40a defining the hollow portion 40b of the upper partition portion 40A (lower partition portion 40B) is preferably 0.5 mm or more and 5 mm or less.
  • the bent portion 40C is integrally molded at a position displaced to one side in the thickness direction of the upper partition portion 40A and the lower partition portion 40B.
  • the thickness of the bent portion 40C is made thinner than the thickness of the upper partition portion 40A and the lower partition portion 40B so that the bending is easy.
  • hinge convex pieces 42 are integrally formed on the upper end surface of the upper partition portion 40A by insert molding, and three sets of hinge convex pieces 43 are integrally formed on the lower end surface of the lower partition portion 40B by insert molding.
  • the hinge convex pieces 42 and 43 are preferably non-foamed molded products of a resin such as polyolefin resin.
  • the lateral width W2 of the second side wall 40 is the distance between the short side frames 11, 11 facing the top frame 10 (the distance between the short side frames 21, 21 facing the bottom frame 20). Is almost equal to As shown in FIG. 7A, the height H2 of the second side wall 40 is such that when the first side wall 30 is in a standing posture, the hinge convex piece 42 formed on the upper end surface of the upper partition portion 40A is Located in the position of the second hinge convex piece 15 formed on the top frame 10 and in the recess 26 formed by the hinge convex piece 43 formed on the lower end surface of the lower partition portion 40B on the bottom frame 20 It is said to be a height that can take an intrusive posture.
  • the pin P is inserted into the hinge convex piece 42 and the second hinge convex piece 15 for hinge connection, and the pin P is inserted between the hinge convex piece 43 and the side wall of the recess 26.
  • the second side wall 40 is hinged to the top frame 10 on the upper end side and the bottom frame 20 on the lower end side, and the distance between the top frame 10 and the bottom frame 20 is increased.
  • the bent portion 40C has a bent posture with the inside.
  • the second side wall 40 since the thickness of the bent portion 40C is thinner than the thickness of the upper partition portion 40A and the lower partition portion 40B, the side of the bent portion 40C has a required depth when standing up as shown in FIG. 7B.
  • a space S is formed.
  • the second side wall 40 is provided with a spacer 50.
  • the thickness in the vertical direction of the spacer 50 is substantially equal to the height in the vertical direction of the space S when the second side wall 40 is in the standing posture, and the horizontal width of the spacer 50 is substantially equal to the horizontal width of the space S.
  • the spacer 50 is composed of two divided spacers 50A and 50A whose horizontal width is half of the horizontal width of the space S.
  • a single spacer may cover the entire width of the space S, or two or more divided spacers 50A may cover the entire width of the space S.
  • the spacer 50 is a non-foamed molded product of a resin such as a polyolefin-based resin, and is an integrally molded product by injection.
  • the split spacer 50A includes a rod-shaped main body portion 51 and a locking portion 52 that rises from two locations of the main body portion 51.
  • the height of the main body 51 is approximately equal to the height of the space S, and the lateral width is approximately 1 ⁇ 2 of the space S.
  • the width in the front-rear direction of the main body portion 51 is substantially equal to the depth of the space S, that is, the distance from the front surface of the upper partition portion 40A (lower partition portion 40B) to the bent portion 40C described above.
  • four concave portions 45 are formed in the front surface portion on the lower end side of the upper partition portion 40A, and the locking portions 52 of the divided spacers 50A enter the concave portions 45, respectively.
  • the thickness of the locking portion of the divided spacer 50A in the front-rear direction is substantially the same as the depth of the recessed portion 45, and the height thereof is substantially equal to the height of the recessed portion 45.
  • the split spacer 50A is fixed to the upper partition portion 40A by the locking portion 52 being locked by an appropriate locking structure 46 of the recessed portion 45.
  • the upper partition portion 40A can be freely bent to an angle of 180 degrees with respect to the lower partition portion 40B using the bent portion 40C in a state where the spacer 50 is fixed. Is possible.
  • the spacer 50 causes a gap between the upper partition portion 40A and the lower partition portion 40B, that is, Since the thickness of the bent portion 40C is thinner than the thickness of the upper partition portion 40A and the lower partition portion 40B, the space S formed on the side of the bent portion 40C is filled almost without any gaps.
  • the lid body 60 is formed using a resin such as polyolefin resin so as to have a hollow portion 60b inside the wall member 60a by a blow molding method (or an insert blow molding method). Hollow material.
  • the hollow portion 60b is formed inside the portion of the lid 60 that faces the cold insulation space R.
  • the hollow portion 60b is formed over the entire region of the lid body 60 facing the cold insulation space R, except for a region where a reinforcing recess D described later is formed.
  • thickness T4 of the part which has the hollow part 60b of the cover body 60 is 5 mm or more and 50 mm or less.
  • the wall thickness of the inner and outer wall members 60a and 60a defining the hollow portion 60b of the lid 60 is preferably 0.5 mm or more and 5 mm or less.
  • the wall member 60 a of the lid body 60 is formed with a reinforcing recess D similar to the bottom plate 23.
  • a total of seven reinforcing recesses D are formed, one at the center of the bottom surface of the lid body 60 and three along the longitudinal side surface, like the bottom plate 23.
  • a stepped portion 62 is formed on the peripheral edge of the bottom surface side of the lid 60.
  • the lid body 60 is formed with a protrusion 61 that fits in the opening 13 of the top frame 10 on the bottom surface side by reducing the thickness T4 at the step portion 62.
  • the folding cool box A is hermetically sealed by fitting the convex portion 61 of the lid 60 into the opening 13 of the top frame 10.
  • 3 and 4 show a state in use.
  • the pair of first side walls 30, 30 rises vertically with the hinge connecting portion on the short side frame 11, 11 side of the top frame 10 as a fulcrum, and the lower end thereof is the short side of the bottom frame 20.
  • the bottoms of the side frames 21 and 21 are reached.
  • the pair of second side walls 40, 40 are hinge-connected at the upper end side to the hinge connecting portion on the long-side frame 12, 12 side of the top frame 10, and the lower end side is on the long-side frame 22, 22 side of the bottom frame 20.
  • the posture of the second side wall 40 in this state is shown in FIG.
  • the user accommodates an appropriate article in the folding cold box A in this posture, hangs the regenerator material C on the step 12a on the inner side of the top frame 10, and places the convex portion 61 of the lid 60 on the top frame 10. It is fitted inside the opening and hermetically sealed to be used for storage or transportation of articles.
  • the cold storage box A is temporarily stored at the entrance of the home of the delivery destination. May be retained.
  • the folding cool box A after the goods are unloaded at each store and displayed on the refrigerated shelf or the freezer shelf. May be temporarily kept in the store. In such a case, it is necessary to prevent the refrigerated / frozen product from being damaged by suppressing the temperature rise in the folding cool box A even in summer when the temperature is relatively high.
  • each member that closes the top, bottom, front, back, left and right is configured with a hollow material having a hollow portion like a conventional folding box
  • the bottom plate, the side wall, and the outside heat does not have a hollow portion
  • the cold air inside the folding box leaks from the gap formed in the intermediate hinge part, or high temperature outside air enters. The temperature inside the folding box easily rises.
  • the folding cool box A of the present embodiment has a bottom plate 23 that closes the top, bottom, front, back, left and right of the inside cool space R, the top side wall 31 of the first side wall 30, and the top of the second side wall 40.
  • All of the partition portion 40A, the lower partition portion 40B, and the lid 60 have hollow portions 23b, 31b, 40b, 60b inside the portion facing the cold insulation space R.
  • the gap 40C of the second side wall 40 is not formed with a gap that acts as an air passage, the airtightness of the folding cool box A is improved, and the folding is performed by a synergistic effect with the heat insulating effect of the hollow material.
  • the cold performance of the cold box A can be further improved.
  • thickness of the part which has the hollow parts 23b, 31b, 40b, 60b shall be 5 mm or more and 50 mm or less
  • the thermal conductivity of the folded cool box A can be set, for example, The range may be 2.0 W / m 2 K or more and 9.0 W / m 2 K or less.
  • the heat transmissivity Hc (W / m 2 K) can be obtained, for example, as follows. A predetermined amount of water (1 ° C.) contained in a container is accommodated in the cold insulation space R of the folding cold insulation box A in which the area S (m 2 ) of the outer surface has been measured in advance, and left in a predetermined external temperature environment for a predetermined time. The temperature change of the water in the cold insulation space R is measured. And the energy E (kcal) which invaded the folding cool box A, the difference T (K) between the outside temperature and the average temperature of water, and the measurement time Hr (h) are obtained. At this time, the heat transmissivity Hc (W / m 2 K) is obtained by the following equation (1).
  • the thermal conductivity Hc of the folding cold box A is used for the above-mentioned food delivery applications. It can be set to a suitable level. Furthermore, about all the said members, said foodstuffs by making thickness of the part which has hollow part 23b, 31b, 40b, 60b and wall thickness of each wall member 23a, 31a, 40a, 60a into said range. Folding cold box A having a heat insulation performance more suitable for delivery applications such as the above can be obtained.
  • the thickness of the part which has the hollow part 23b, 31b, 40b, 60b of the bottom plate 23, the side wall main body 31 of the 1st side wall 30, the upper partition part 40A and the lower partition part 40B of the 2nd side wall 40, and the cover body 60 If the thickness is less than 5 mm, the intended cold insulation performance may not be obtained. On the other hand, if it is thicker than 50 mm, the internal volume of the folding cold box A may be reduced or the volume after folding may be increased. Further, if the wall members 23a, 31a, 40a, and 60a of each of the above members are thinner than 0.5 mm, sufficient strength may not be obtained. On the other hand, if they are thicker than 5 mm, the weight may increase. .
  • each member has a hollow portion 23b, 31b, 40b, 60b having a thickness of 5 mm or more and 50 mm or less, and the wall members 23a, 31a, 40a, 60a have a thickness of 0.5 mm or more and 5 mm or less. Is preferred.
  • the strength and dimensions of the bottom plate 23, the side wall body 31 of the first side wall 30, the upper partition portion 40A and the lower partition portion 40B of the second side wall 40, and the lid body 60 are set within an appropriate range. it can.
  • the wall member 23a that defines the bottom plate 23, the side wall body 31, the upper partition portion 40A, the lower partition portion 40B, and the hollow portions 23b, 31b, 40b, 60b of the lid body 60. , 31a, 40a, and 60a are provided with reinforcing recesses D.
  • the reinforcing recess D of the bottom plate 23 shown in FIG. 3 has a cylindrical inner wall Da extending vertically between the upper and lower wall members 23a, 23a. Therefore, when a load is applied to the upper surface side of the bottom plate 23, the upper wall member 23 a is supported from below by the inner wall Da of the reinforcing recess D.
  • the upper wall member 23a is prevented from bending downward. Also in the other members described above, the wall members 31a, 40a, 60a are similarly supported by the inner wall Da of the reinforcing recess D, so that dents and deformations due to the external force of the wall members 31a, 40a, 60a are suppressed.
  • a step portion 12 a that supports the end portion of the cold storage material C is formed on the inner surface of the top frame 10.
  • the portion 40B is connected by a bent portion 40C without any air passage.
  • the space S between the lower end of the upper partition portion 40A formed by the bent portion 40C and the upper end of the lower partition portion 40B is formed by a spacer 50 attached to the lower end of the upper partition portion 40A. Almost all areas are filled.
  • the hermeticity of the cold insulation space R is improved as compared with the side wall to which the conventional intermediate portion is hinged, and the heat insulating performance of the second side wall 40 can be improved. Furthermore, when a large load is applied from above, the load can be received by the spacer 50, so that the second side wall 40 can be prevented from being unnecessarily deformed.
  • FIG. 5A shows a state in the middle of folding.
  • the pair of first side walls 30, 30 are rotated about the hinge connecting portion of the top frame 10 as a fulcrum, and the folding cold box A is in a horizontal position.
  • the middle part of the pair of second side walls 40, 40 is folded and pushed toward the inside of the cold insulation box A.
  • FIG. 5A shows that As the second side wall 40 bends, the upper partition portion 40A and the lower partition portion 40B rotate so as to fall inside the cold insulation box A, and the top frame 10 and the bottom frame 20 gradually approach the distance.
  • FIG. 5B is obtained. In this state, the upper partition portion 40A and the lower partition portion 40B of the second side wall 40 are folded, and the first side walls 30 and 30 are on the folded upper partition portion 40A.
  • the volume of the folding cold box A is smaller than that in use.
  • the cold insulation performance is further improved.
  • An improved folding cold box A can be provided. Therefore, for example, when the refrigerated / frozen product is accommodated and delivered to each home, or when a product such as a beverage or food is accommodated and delivered to a retail store, the folding cold box A is placed in a place where the temperature is relatively high. Even in the case of being temporarily retained, it is possible to keep the refrigerated / frozen product from being damaged by suppressing the temperature rise of the cold-reserved space R in the folded cold-reservoir box A. Further, even a relatively large folding cold box A that can accommodate relatively large items such as refrigerated / frozen products can be stored compactly by folding it after use to reduce the occupied space.
  • the reinforcing concave portion D is not necessarily formed on all of the bottom plate 23, the side wall body 31, the upper partition portion 40A, the lower partition portion 40B, and the lid body 60. What is necessary is just to form suitably the number required for reinforcement in the member which needs reinforcement according to the thickness of each said member, the area of the area
  • a reinforcing recess D is formed in the side wall body 31 of the first side wall 30, the upper and lower partition portions 40A and 40B of the second side wall 40, and the wall members 23a, 31a, 40a, and 60a of the lid body 60.
  • a space may be formed between the inner and outer wall members of the folding cool box A in each member.
  • the hollow portions 23b, 31b, 40b, and 60b can be continuously formed in the region where each of the members faces the cold insulation space R while improving the above. Therefore, it becomes possible to form the hollow portions 23b, 31b, 40b, 60b including the region where the reinforcing concave portion D is formed over the entire region where each member faces the cold insulation space R, and the folding cold insulation box A It is possible to further improve the cold insulation performance.
  • the bottom plate 23, the side wall body 31, the upper partition portion 40A, the lower partition portion 40B, and the portion of the lid 60 that does not face the cold insulation space R do not have the hollow portions 23b, 31b, 40b, 60b.
  • a hollow portion similar to other members may be formed in one or both of the top frame 10 and the bottom frame 20.
  • the top frame 10 and the bottom frame 20 have a hollow part inside the part facing the cold insulation space R.
  • the bottom plate 23 having the hollow portions 23b, 31b, 40b, 60b, the side wall body 31 of the first side wall 30, the upper partition portion 40A of the second side wall 40, and The thickness T1 to T4 of the lower partition portion 40B and the lid 60 were 20 mm, respectively, and the wall thickness of each wall member 23a, 31a, 40a, 60a was 1 mm.
  • the recessed part D for reinforcement was not formed in each said member.
  • the inner size of the folding cool box A was 400 mm ⁇ 250 mm ⁇ 110 mm, and the area of its outer surface was about 0.474 m 2 .
  • the thermal conductivity Hc (W / m 2 K) of the folding cool box A is E (kcal) for the energy that has entered the folding cool box A
  • the area of the outer surface of the folding cool box A is S (m 2 ).
  • the difference between the average temperature of the outside air temperature and the average temperature of water is T (K), and the measurement time is Hr (h).
  • the energy E (kcal) that has entered the folding cold box A is c (kcal / (kg ⁇ ° C)) as the specific heat of water, W (kg) as the weight of water, and ⁇ T (° C) as the temperature rise of water.
  • E (kcal) that has entered the folding cold box A is c (kcal / (kg ⁇ ° C)) as the specific heat of water, W (kg) as the weight of water, and ⁇ T (° C) as the temperature rise of water.
  • the energy E obtained from the above formula (2) was 146.7 kcal because the temperature of 5 kg of water rose by 29.3 ° C.
  • the thermal conductivity Hc of the folding cold box A of the present example obtained from the above formula (1) was about 3.8 (W / m 2 K).
  • FIG. 8 is a view corresponding to FIG. 4 showing another embodiment of the folding cold box according to the present invention.
  • the bottom cold plate 23 and the lid 60 are provided with the hollow part 23b or the hollow part 60b in the folding cold box described with reference to FIGS.
  • the bottom plate 23S and the lid body 60S are different in that they are entirely solid, that is, do not include a hollow portion and a reinforcing concave portion.
  • Other configurations including the outer dimensions of the bottom plate 23S and the lid 60S may be the same, and the same members are denoted by the same reference numerals, and description thereof is omitted.
  • the material of the bottom plate 23S and the lid 60S is preferably a heat insulating material from the viewpoint of maintaining a high heat insulating property, and more preferably a polystyrene resin, a polyolefin resin, or the like. It is a foamed resin.
  • a heat insulating material from the viewpoint of maintaining a high heat insulating property
  • a polystyrene resin preferably a polystyrene resin, a polyolefin resin, or the like. It is a foamed resin.
  • FIGS. 9 and 10 show another form of the bottom frame 20 used in the folding cold box according to the present invention.
  • the bottom plate 22a constituting the bottom frame 20 is shown as having a flat back surface, but in the case shown in FIGS. 9 and 10, the bottom plate 22a is shown.
  • a large number of ridges 22b are erected in a grid pattern on the back surface of the.
  • the bottom plate 22a tends to have a downwardly protruding drum shape.
  • the bottom plate 22a has such a shape, when placed on the ground, the installation state becomes unstable, and rotation in the surface direction is likely to occur.
  • it is possible to prevent the deformation by increasing the thickness of the bottom plate 22a it is not preferable because the material cost increases and the weight increases.
  • the inconvenience can be solved by integrally forming an appropriate number of protrusions 22b having a required height on the back surface of the bottom plate 22a as shown in FIGS. That is, by forming the protrusion 22b on the back surface, the strength of the bottom plate 22a can be improved without causing a large increase in material cost or weight increase, preventing unnecessary deformation, and placing it on the ground. High stability can be maintained.
  • the height of the ridge 22b is a ridge 22b1 having a high height in the peripheral region of the bottom plate 22a, as in a region C surrounded by a two-dot chain line in FIG.
  • the protrusion 22b2 having a lower height is used, so that even when the central region of the bottom plate 22a bulges downwards due to changes over time, the bulges to the convexes.
  • a stable ground posture can be maintained by avoiding the touched area from touching the ground and only the surrounding ridge 22b1 having a high height touching the ground. Thereby, it becomes possible to more reliably prevent the rotation in the surface direction from being easily generated.
  • the intended purpose can be achieved even if the projection 22b is not formed in the central region on the back surface of the bottom plate 22a and the flat surface remains.
  • the protrusion 22b may have a lattice shape as illustrated, or may be formed radially from the central region toward the surrounding region.
  • the combination of a radial protrusion and a concentric protrusion may be sufficient.
  • the technology of integrally forming the protrusion 22b on the back surface of the bottom plate so as to be lower in the central region than the surrounding region can be applied to all the cold boxes that are placed directly on the ground.
  • the present invention is not limited to the folding cool box having the shape shown in FIGS.
  • FIG. 11 is a view corresponding to FIG. 4 showing another embodiment of the folding cold box according to the present invention.
  • FIG. 12 is an enlarged cross-sectional view showing a portion XII in FIG.
  • the folding cool box described based on FIGS. 1 to 7 the bottom plate 23, the side wall body 31, the upper partition portion 40A, the lower partition portion 40B, and the hollow portions 23b, 31b, 40b (see FIG. 3) and 60b of the lid 60 are provided.
  • the folding cold box of this embodiment is different in that the heat insulating material H is filled in the hollow portions 23b, 31b, 40b, and 60b.
  • Other configurations may be the same, and the same members are denoted by the same reference numerals, and description thereof is omitted.
  • the heat insulating material H filled in the hollow portions 23b, 31b, 40b, and 60b is preferably, for example, a polyurethane-based foamed resin.
  • the heat insulating material H of the present embodiment is made of foamed polyurethane.
  • the thickness T2 (or T1, T3, T4, or T5) of the portion having a thickness of 10 mm or more and 100 mm or less, and the wall member 31a (or 23a, 40a, The wall thickness t2 of 60a) is preferably 0.5 mm or more and 5 mm or less.
  • the heat flow rate of the folding cool box A can be set to, for example, 3.0 W / m 2 K or less.
  • the bottom plate 23, the side wall body 31, the upper partition portion 40A, the lower partition portion 40B, and the wall members 23a, 31a, 40a, 60a of the lid body 60 are made of a polyolefin resin.
  • strength and durability of wall member 23a, 31a, 40a, 60a are securable.
  • sufficient strength and durability can be maintained by configuring the wall members 31a, 23a, 40a, and 60a with a polyethylene resin. .
  • the bottom plate 23, the side wall body 31, the upper partition portion 40A, the lower partition portion 40B, and the wall members 23a, 31a, 40a, and 60a of the lid body 60 are filled with a heat insulating material H as shown in FIG. And a screw 31d that closes the opening 31c after being filled with the heat insulating material H.
  • a recess 31e is provided around the opening 31, and the head of the screw 31d is not projected from the surface of the wall member 31a by accommodating the head of the screw 31d in the recess 31e.
  • the heat insulating material H can be easily filled in the hollow portion 31b (or 23b, 40b, 60b).
  • the heat insulating material H can be enclosed in the hollow part 31b (or 23b, 40b, 60b) by plugging the opening 31c with the screw 31d after the injection of the heat insulating material H.
  • the hollow portions 23b, 31b, 40b, and 60b were prepared as the heat insulating material H and filled with foamed polyurethane.
  • the bottom plate 23, the side wall body 31 of the first side wall 30, the upper partition portion 40A and the lower partition portion 40B of the second side wall 40, and the thicknesses T1 to T4 of the lid 60 are 20 mm, respectively.
  • the wall thickness of the wall members 23a, 31a, 40a, 60a was 1 mm.
  • the recessed part D for reinforcement was not formed in each said member.
  • the inner size of the folding cool box A was 400 mm ⁇ 250 mm ⁇ 110 mm, and the area of its outer surface was about 0.474 m 2 .
  • FIG. 13 is a graph showing the relationship between the temperature of water in the folding cold box according to the present example and the elapsed time, with the horizontal axis representing time (Hr) and the vertical axis representing temperature (° C.).
  • a straight line L0 indicated by a one-dot chain line indicates the environmental temperature.
  • the curve L1 shown with a broken line has shown the temperature of the water in the folding cool box which is not filled with the heat insulating material H in the hollow part, and the cool storage material C is not accommodated.
  • a curved line L2 indicated by a solid line indicates the temperature of the water in the folded cold insulation box in which the hollow portion is filled with the heat insulating material H but the cold storage material C is not accommodated.
  • the curve L3 shown with a dotted line has shown the temperature of the water in the folding cool box which the cold storage material C was accommodated, although the heat insulating material H is not filled in the hollow part.
  • the curve L4 shown with a dashed-two dotted line has shown the temperature of the water in the folding cool box with which the hollow part was filled with the heat insulating material H and the cool storage material C was accommodated.
  • the folding cold box in which the hollow portion is filled with the heat insulating material H and the cold storage material C is accommodated has the lowest water temperature after 10 hours, and the temperature rise of the water is 5 ° C. or less. could be suppressed.
  • the hollow portion shown in the straight line L3 is not filled with the heat insulating material H, but the cold cooling performance of the folding cold box containing the cold storage material C is high, and the water after 10 hours has passed. Was able to be suppressed to about 10 ° C.
  • the temperature of the water in the folded cold box in which the hollow portion is filled with the heat insulating material H and the cold storage material C is not accommodated is slightly higher than the temperature of the water in the folded cold box shown by the straight line L3. Although the tendency to become high was seen, the raise of the water temperature after 10-hour progress was able to be suppressed to about 10 degreeC. As shown by the straight line L1, the folding cold box in which the hollow portion is not filled with the heat insulating material H and the cold storage material C is not stored has a lower cooling performance than the other folding boxes, but after 10 hours have passed. The temperature of the contained water could be maintained at a temperature nearly 10 ° C. lower than the external environment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne une boîte de stockage au froid repliable présentant des performances de stockage au froid améliorées. Une boîte de stockage au froid repliable (A) est pourvue : d'un cadre supérieur (10) ; d'une plaque inférieure (23) ; d'un cadre inférieur (20) ; d'une paire de premières parois latérales (30) qui possèdent chacune un côté supérieur ou un côté inférieur relié par le biais d'une charnière au cadre supérieur (10) ou au cadre inférieur (20) ; d'une paire de secondes parois latérales (40) pouvant se plier et se dresser qui ont chacune un côté supérieur relié par le biais d'une charnière au cadre supérieur et qui ont également chacune un côté inférieur relié par le biais d'une charnière au cadre inférieur ; et d'un corps de couvercle (60). Les secondes parois latérales (40) sont chacune dotées : d'une partie zone supérieure (40A) et d'une partie zone inférieure (40B), qui sont agencées verticalement les unes à côté des autres ; et d'une partie de pliage (40C) qui relie les parties zones supérieures et inférieures (40A, 40B). La plaque inférieure (23), les premières parois latérales (30), les parties zones supérieures (40A) et les parties zones inférieures (40B), les parties zones supérieures et inférieures (40A, 40B) constituant les secondes parois latérales (40), et le corps de couvercle (60) possèdent des parties tournées vers un espace de stockage au froid (R) délimité par au moins la plaque inférieure (23), les premières parois latérales (30), les parties zones supérieures (40A), les parties zones inférieures (40B) et le corps de couvercle (60), et les parties renferment des sections creuses (23b, 31b, 40b, 60b).
PCT/JP2014/053967 2013-03-13 2014-02-20 Boîte de stockage au froid repliable WO2014141839A1 (fr)

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FR3028846A1 (fr) * 2014-11-24 2016-05-27 Sofrigam Systeme de caisse de transport thermiquement isolante livrable en kit.
US10479550B2 (en) 2012-03-26 2019-11-19 Kraft Foods R & D, Inc. Packaging and method of opening
US10507970B2 (en) 2013-03-07 2019-12-17 Mondelez Uk R&D Limited Confectionery packaging and method of opening
US10513388B2 (en) 2013-03-07 2019-12-24 Mondelez Uk R&D Limited Packaging and method of opening
CN110736283A (zh) * 2019-10-25 2020-01-31 徐州恒大食品有限公司 一种蔬菜用保藏冷库
CN112874981A (zh) * 2021-01-22 2021-06-01 上海鸿研物流技术有限公司 可折叠保温箱
WO2021145971A1 (fr) * 2020-01-13 2021-07-22 Igloo Products Corp. Glacière rigide pliable
CN116443476A (zh) * 2023-05-21 2023-07-18 泰安市鲁铭金属制品有限公司 一种用于冷链物流的货架

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TWI546037B (zh) 2015-12-14 2016-08-21 財團法人工業技術研究院 置物櫃系統以及調整容置空間的方法

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10479550B2 (en) 2012-03-26 2019-11-19 Kraft Foods R & D, Inc. Packaging and method of opening
US10507970B2 (en) 2013-03-07 2019-12-17 Mondelez Uk R&D Limited Confectionery packaging and method of opening
US10513388B2 (en) 2013-03-07 2019-12-24 Mondelez Uk R&D Limited Packaging and method of opening
FR3028846A1 (fr) * 2014-11-24 2016-05-27 Sofrigam Systeme de caisse de transport thermiquement isolante livrable en kit.
FR3028845A1 (fr) * 2014-11-24 2016-05-27 Sofrigam Systeme de caisse de transport thermiquement isolante livrable en kit.
WO2016083710A1 (fr) * 2014-11-24 2016-06-02 Sofrigam Systeme de caisse de transport thermiquement isolante livrable en kit
CN110736283A (zh) * 2019-10-25 2020-01-31 徐州恒大食品有限公司 一种蔬菜用保藏冷库
WO2021145971A1 (fr) * 2020-01-13 2021-07-22 Igloo Products Corp. Glacière rigide pliable
CN112874981A (zh) * 2021-01-22 2021-06-01 上海鸿研物流技术有限公司 可折叠保温箱
CN116443476A (zh) * 2023-05-21 2023-07-18 泰安市鲁铭金属制品有限公司 一种用于冷链物流的货架
CN116443476B (zh) * 2023-05-21 2023-09-29 泰安市鲁铭金属制品有限公司 一种用于冷链物流的货架

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