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WO2011057388A1 - Contenant à refroidissement automatique - Google Patents

Contenant à refroidissement automatique Download PDF

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Publication number
WO2011057388A1
WO2011057388A1 PCT/CA2010/001751 CA2010001751W WO2011057388A1 WO 2011057388 A1 WO2011057388 A1 WO 2011057388A1 CA 2010001751 W CA2010001751 W CA 2010001751W WO 2011057388 A1 WO2011057388 A1 WO 2011057388A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
sidewalls
thermal conductivity
walls
base
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CA2010/001751
Other languages
English (en)
Inventor
Eric Magni
Gaston Lacasse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IPL Inc
Original Assignee
IPL Inc
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 IPL Inc filed Critical IPL Inc
Publication of WO2011057388A1 publication Critical patent/WO2011057388A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • B65D11/1833—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 whereby all side walls are hingedly connected to the base panel
    • 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
    • B65D11/20—Details of walls made of plastics material
    • 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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0212—Containers presenting local stacking elements protruding from the upper or lower edge of a side wall, e.g. handles, lugs, ribs, grooves
    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/263—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for ventilating the contents

Definitions

  • the present invention relates to a multi-purpose container for storing and transporting goods. More particularly, the present invention relates to a multi-purpose container for maintaining temperature of the container at a temperature of a cooling medium contained therein to preserve perishable items shipped by container.
  • Containers for storing and transporting perishable items such as produce have been used in the fruit and vegetable marketing industry, by way of example for many years. At the outset, wooden boxes were used. However, they suffered from many well documented disadvantages. Over time, the industry adopted containers made of plastic materials because of their light weight, durable characteristic.
  • U.S. Patent No. 5,727,711 The disclosed container included a plurality of openings of specific dimensions in the floor. Each of the sidewalls also includes a plurality of openings of specific dimensions.
  • containers Prior to use in the field, containers are usually stored out in the field or in a warehouse where they take on the ambient temperature of the environment over time. As they are used in the field, they are often much warmer than the system needs to be. Thus, there is the necessity for the use of ice or other cooling fluids. However, there is much thermal inertia in the container so that much of the cooling capacity of the ice is wasted on the container which has a tendency to raise the overall temperature of the environment within the container which may lead to premature spoilage of the produce within the container. It is desirable to lower the temperature of the produce as quickly as possible to minimize the spoilage.
  • a container for storing and transferring perishable goods, such as crops, fruits and vegetables from the field to the market There is provided a reusable stackable container which is adapted to provide efficient uniform cooling.
  • a produce container has a floor and four adjoining vertical portions, made up of opposite end wall pairs and opposite sidewall pairs. At least the walls are formed from a material having a high thermal conductivity, i.e. low thermal inertia.
  • the container may be a collapsible, reusable container for carrying goods such as produce.
  • the container includes four hinged walls and a base.
  • the walls include two end walls and two sidewalls. These walls can be folded down onto the base so that the container assumes a flat configuration for easy storage. When unfolded, the walls are properly aligned and securely locked together so that they provide a rigid container that can be stacked with other similar containers.
  • the first sidewall may include at least one latching member that cooperates with a latching member of the first end wall to secure the first sidewall and the first end wall together when the first sidewall and the first end wall are in upright positions.
  • the container may also include a wall locking system that has a plurality of locking members on the first sidewall and at least one locking member on the first end wall. The locking member on the first end wall cooperates with the locking members on the first sidewall to prevent the first sidewall from moving relative to the first end wall in at least one direction when the first sidewall and first end wall are in upright positions.
  • the container may also include a wall alignment system that has a first member extending from one of the sidewalls, and a second member that extends from one of the end walls.
  • the first and second members of the wall alignment system cooperate to align adjacent sidewalls and end walls before the sidewalls and end walls achieve a completely upright position.
  • vent holes are formed in at least one of opposing sidewall pairs and/or opposing end wall pairs. Air flow is facilitated through the vents.
  • FIG. 1 is a perspective view of a collapsible container according to an embodiment of an aspect of the present invention
  • FIG. 2 is a perspective view of a base as shown in FIG. 1 ;
  • FIG. 3 is an outside perspective view of a sidewall having a contoured upper surface according to an embodiment of an aspect of the present invention
  • FIG. 4 is an inside perspective view of the sidewall shown in FIG. 3;
  • FIG. 5 is an elevational view of the outer surface of the sidewall shown in FIG. 3;
  • FIG. 6 is an elevational view of the inner surface of the sidewall shown in FIG. 4;
  • FIG. 7 is an end view of one of the sidewalls of the container shown in FIG. 1 ;
  • FIG. 8 is an end view of the other sidewall of the container shown in FIG. 1 ;
  • FIG. 9 is an outside perspective view of an end wall according to the present invention illustrating an outer surface of the end wall
  • FIG. 10 is an inside perspective view of an end wall illustrating an inner surface of the end wall
  • FIG. 11 is an elevational view of the inner surface of the end wall shown in
  • FIG. 10; [0026] FIG. 12 is an end view of one of the end walls shown in FIG. 1 ;
  • FIG. 13 is a cross-sectional view through one of the end walls shown in FIG. 1 ;
  • FIG. 14 is an elevational view of the outer surface of the end wall of FIG. 9;
  • FIG. 15 is a perspective view of the container shown in FIG. 1 wherein the combined height of the folded sidewalls, shown in FIGS. 3-6, is greater than the width of the base;
  • FIG. 16 is a perspective view of another embodiment of the present invention wherein the combined height of the folded sidewalls is less than the width of the base;
  • FIG. 17 is a perspective view of the embodiment illustrated in FIG. 16 with the sidewalls in an upright, raised position.
  • FIG. 1 illustrates a collapsible container or container 10 according to an embodiment of an aspect of the present invention.
  • the collapsible container 10 can be used to store or transport goods.
  • the container 10 may be particularly suitable for transporting produce such as fruits and vegetables, where use of cooling fluids such as air or gas, as well as ice, may be necessary to keep the produce fresh and consumable until they reach a predetermined destination such as a market.
  • the container 10 is formed of a plastic material by injection molding or other known plastic molding processes that are suitable for forming reusable, collapsible containers.
  • the plastic material has a high thermal conductivity, i.e. a thermal conductivity substantially greater than that of conventional container polypropylene (0.22 W-K- ⁇ rrr 1 ), and preferably between at least about 0.30 W K ⁇ m -1 and 1.2 W-K "1 , nr 1 , for example between 0.55 W-K "1 -nr 1 and 0.75 W-K "1 -m ⁇ 1 .
  • One such material is a polypropylene resin or resin mixed with exfoliated graphite.
  • High density polyethylene (HDPE) having a thermal conductivity between about 0.39 W'K- 1 -irr 1 and at least 0.8 W-K _1 , rrr 1 may also be used.
  • the high thermal conductivity material is HDPE mixed with exfoliated graphite, and the thermal conductivity is a function of the percentage of graphite within the mixture.
  • Graphite may be included at between about five percent and thirty five percent by weight, between about eight percent and thirty five percent by weight for example.
  • high density polyethylene may be used as the base material.
  • the container 10 comprises a base 14, sidewalls 34, 36 and end walls 44, 46.
  • each of these walls has a handle opening so that the container can be easily carried.
  • the base 14 includes a bottom panel 15 that forms a lower support surface for carrying and supporting the goods positioned within the container 10.
  • the bottom panel 15 is generally rectangular in shape.
  • the container 10 and base 14 can have any shape such as substantially square or substantially oblong.
  • the sidewalls 34, 36 can be substantially straight and the end walls 44, 46 can be slightly curved, or vice versa.
  • the container can be of any size.
  • the container 10 can have sidewalls 34, 36 that are any height above the base 14 and any length.
  • Providing a base and walls having a high thermal conductivity facilitates cooling of the container and its environment more rapidly than prior art polypropylene containers.
  • the container adopts the temperature of the cooling medium such as a refrigerating fluid or ice more rapidly to provide a cold environment for any perishable goods.
  • the base 14 may be formed with vent opening 600 therein
  • sidewalls 34, 36 may be formed with vent openings 800 therein
  • end walls 44, 46 may be formed with vent holes 700 therein to promote cross ventilation of a cooling fluid such as air. It follows, that at a minimum, the vent openings provided in a opposed wall pairs promote flow of the air or other cooling medium across the container.
  • the openings are designed as taught in U.S. Patent No.
  • the base 14 has two opposed side edges 16 and 18, and two opposed end edges 20 and 22.
  • the base 14 further includes upwardly extending base wall sections 24 and 26 that extend parallel to the end edges 20, 22 and perpendicularly away from the bottom panel 15. These base wall sections 24, 26 can be integrally molded with the base 14.
  • Each wall section 24, 26 has an upper edge 25 for supporting either the sidewalls 34, 36 or the end walls 44, 46 depending upon which set of walls is intended to be folded over the base 14 last and unfolded first.
  • the opposed sidewalls 34 and 36 extend along the length of the base 14 on opposite sides of the bottom panel 15.
  • the sidewalls 34 and 36 are each pivotally attached to bottom panel 15 by a hinge system 37 that is located along the opposed side edges 16, 18 of bottom panel 15.
  • the hinge system 37 permits the sidewalls 34, 36 to be pivoted toward, or away from, the bottom panel 15 along edges 16 and 18 so that they can be positioned in either an upright, unfolded position in which it extends perpendicular to the base 14, or a horizontal, folded position where it extends parallel to the base 14.
  • each sidewall 34 and 36 includes a plurality of rod sections 38 that extend across a portion of each sidewall 34 and 36.
  • the outermost rod sections 38 are spaced inwardly from the end surfaces 91 of the sidewalls 34 and 36 proximate end walls 44, 46.
  • the rod sections 38 are formed integrally with the base 14.
  • the rod sections 38 are joined together as a single member that extends along the entire length of the hinge and through adjacent supports in the base 14. The ends of the single member 38 are supported by the outermost supports.
  • the hinging system 37 on each side of the container 10 also includes hinge members 39 that extend downwardly from sidewalls 34 and 36 and into openings in the bottom panel 15, as shown in FIGS. 1 and 3-6.
  • the hinge members 39 can be integrally molded to, or otherwise unitarily formed with, their respective sidewall 34, 36.
  • each hinge member 39 has a C-shaped cross-section that receives and partially surrounds a respective rod section 38.
  • Each hinge member 39 rotates about its respective rod section 38 so that the sidewalls 34 and 36 pivot and fold with respect to bottom panel 15 with minimal wearing of hinging mechanism 37.
  • the hinge members 39 can be secured to their respective rod sections 38.
  • the rod sections 38 rotate relative to the base 14 instead of the hinge member 39 rotating relative to the sections 38.
  • This hinging system 37 can also be used to hingedly connect the end walls 44, 46 to the base 14, as discussed further herein.
  • the hinging system 37 does not extend the full length of base 14. Instead, the hinging system 37 terminates a distance away from the end surfaces 91 of each sidewall 34, 36 to permit easy pivoting of the sidewalls and to reduce the damage that may occur to the hinges if they were placed in close proximity to the ends of the sidewalls. Additionally, the hinging system 37 terminates at points that are spaced from the end walls 44, 46 by pockets 62 that are proximate the end walls 44, 46. This spacing eliminates the need for extending the hinging system into pockets 62 or between these pockets 62 and the end walls 44, 46.
  • the pockets 62 are able to be spaced along the container 10 so they can receive cooperating stacking tabs 58 from other containers, including corrugated boxes, as discussed below.
  • This distance between the hinge system 37 and the end walls 44, 46 could be any distance that is known in the industry for pockets 62 that receive stacking tabs 58.
  • the sidewalls 34, 36 and the bottom panel 15 include a wall stabilizing system 80, seen in FIGS. 1 , 15 and 16. By stabilizing and limiting the inward movement of the wall section 93, the goods carried by the container 10 are protected against the damage caused by conventional, unrestrained sidewalls.
  • the stabilizing system 80 include a plurality of stabilizing members 81 positioned along the sidewalls 34, 36 and a plurality of cooperating stabilizing members 82 positioned along the side edges 16, 18 of the bottom panel 15.
  • the stabilizing members 81 include a plurality of projections or pegs that extend from a lower surface of the sidewalls 34, 36 as shown in FIGS. 5-8.
  • the stabilizing members 82 include holes in the bottom panel 15 (shown in FIG. 2) that are aligned with the members 81 in order to receive the projections 81 as the sidewalls 34, 36 are being moved into their upright position.
  • the projections 81 and holes 82 When the projections 81 and holes 82 are mutually engaged (when the sidewalls are partially or completely upright), they provide support, stability and strength (structural rigidity) to the end sections 93 of the sidewalls 34, 36.
  • the structural rigidity added by the stabilizing system 80 and the limited movements of the corners enhance the stacking strength of the container.
  • the projections 81 and holes 82 are only located between the outermost hinge member 39 and the end surfaces 91 of the sidewalls 34, 36 that extend along the end walls 44, 46.
  • the projections 81 and openings are located only along section 93.
  • Members 81, 82 are not positioned between adjacent hinge members 39 because the hinge members 39 provide sufficient stability along the middle portion of the sidewalls 34, 36.
  • the holes 82 could be formed in the lower surface of the sidewalls 34, 36 and the projections 81 extend upwardly away from an upper surface of the bottom panel 15.
  • holes 82 include open holes or recesses with side and bottom walls.
  • end walls 44 and 46 are similarly pivotally attached to the bottom panel 15 by way of a hinging mechanism 48 which is similar in structure to hinging mechanism 37 described above, as shown in FIG. 1.
  • the end walls 44, 46 are folded relative to base 14 at a distance remote from the bottom panel 15.
  • end walls 44 and 46 are pivotally attached to upstanding wall sections 24 and 26, respectively, of the bottom panel 15, proximate upper edges 25.
  • the height of the upstanding wall sections 24, 26 is chosen based on the required distance from the bottom panel 15 that the walls 44, 46 must be spaced in order to fold over the folded sidewalls 34, 36 and form a stackable structure with a flat upper surface.
  • the end walls 44 and 46 are able to achieve a folded position and an upright position.
  • the hinging system 48 used for end walls 44, 46 is similar to that described above in association with sidewalls 34 and 36.
  • This system 48 is illustrated in FIGS. 1, 9.
  • the system 48 includes a plurality of rod sections 38 and C-shaped hinge members 39 with internal bearing surfaces, as shown in FIGS. 9 and 12-13.
  • the hinging mechanism 48 does not extend to corner line 31 but is remote therefrom.
  • the rod sections 38 can be part of a single rod or they can be separate, independent sections.
  • either the hinge members 39 or the hinge members 39 and the rod sections 38 rotate relative to the base 14 when the end walls 44, 46 are unfolded.
  • the hinge members 39 rotate relative to the base 14, they rotate within an opening 45 that includes pivot limiting members 88. These members 88 prevent the end walls 44, 46 from pivoting past about 90 degrees relative to the bottom panel 15 (past vertical).
  • each end wall 44 and 46 has a U-shaped horizontal cross section that is formed by a main end wall portion 50, and two shorter flange portions 52.
  • these wall portions are integrally formed together as a single unit.
  • the flange portions 52 extend from either side of portion 50. Additionally, the flange portions 52 are oriented orthogonal to main end wall portion 50 and, when the container is assembled, they extend in the direction of the sidewalls 34 and 36.
  • the collapsible container assembly 10 also includes locking system 64 for securing the sidewalls 34, 36 to the end walls 44, 46 and stabilizing the corners. Moreover, the locking system prevents the sidewalls from moving relative to the end walls in at least the vertical direction and the rotational direction that is past vertical.
  • the locking system 64 provides interlocking engagement between the sidewalls 34, 36 and the end walls 44, 46 when these walls are in their upright position.
  • the locking system 64 forms dovetail joints at each of the corners with the cooperating elements 66, 67, 68, 69 of the joints forming only a fraction of their respective walls. For example, each cooperating element may be one-half the thickness of the walls.
  • one element may be one-third or one-quarter the thickness of its wall while the cooperating element is two-thirds or three-quarters the thickness of its wall, respectively.
  • the cooperating elements of the joints are hidden from any line of sight when the container is fully assembled and the walls are in their upright positions. The advantages to these joints are discussed above.
  • the locking system 64 includes flanges 54 at the outer ends of the sidewalls
  • each flange 54 includes at least one locking tab 66.
  • each flange 54 includes a plurality of locking tabs 66 disposed at predetermined spaced intervals by gaps 67.
  • Each locking tab 66 has a substantially triangular shape with the largest portion of the tab 66 extending along edge 91.
  • Each tab 66 also includes first and second locking surfaces 72, 74 that extend between the outermost surface 70 and the main portion of sidewalls 34, 36.
  • each flange 52 includes at least one tab receiving opening 68 that receives the tab(s) 66 on one of the flanges 54.
  • each flange 52 includes a plurality of tab receiving openings 68.
  • Each opening 68 has a shape that compliments and receives the locking tab 66 in a snug fashion.
  • the triangular shape of tab 66 and the corresponding shape of opening 68 enhance the locking feature of locking system 64.
  • the openings 68 are defined by spacers 69 that extend away from the flanges 52 in the direction of the interior of the container 10.
  • the tabs 66 slide into the openings 68 as the sidewalls 34, 36 are pivoted from the collapsed position to the upright position and into engagement with the end walls 44, 46.
  • the wall of each flange 52 provides a stop against the movement of the tabs 66.
  • the tabs 66 could be located on the flanges 52 and the openings 68 arranged on flanges 54.
  • the container 10 also includes a wall guiding system
  • the guiding system 100 includes a male protrusion or spur 110 positioned along one of the flanges 54 of the sidewalls 34, 36.
  • the spur 110 extends away from the side edge or face of its sidewall in the direction of a respective end wall that is parallel to the length of the sidewalls and perpendicular to the length of the end walls. As shown in FIG. 3, the spur 110 is secured to the flange/sidewall along only one edge so that it is free to be received by a complimentary female member on a cooperating end wall.
  • Each spur 110 is spaced from the other portions of the flange 54 including the tabs 66 along its height.
  • each end wall 44, 46 also includes a portion of the guiding system 100 for receiving the spur 110 and aligning the mating portions of the locking system 64 of cooperating walls so that these walls can be easily and properly secured together when the sidewalls 34, 36 are raised as the end walls 44, 46 are in an upright position.
  • the spur 110 is received and guided by an elongated guiding channel 120 formed by two coextensive, opposing, contoured members 125 that extend away from the inner surface or inner face of their end wall in the direction of the interior of the container 10 and substantially parallel to the length of the sidewalls 34, 36, as shown in FIGS. 10 and 13.
  • the members 125 also extend along a portion of their respective end walls.
  • Each member 125 has an outer surface 126 that covers an inner, recessed track 127 in which the spur 110 travels as the sidewalls are raised during the assembly of the container 10.
  • a wide, tapered opening 128 provides access to its respective track 127 so that the spur 110 of the cooperating sidewall will be easily and conveniently received within the channel 120 even if the sidewall is not properly aligned while it is being raised. This receipt of the spur 110 is also facilitated by the angled of flared orientation of the opening 128 relative to the remainder of the guiding channel 120.
  • the sides of the opening 128 can be angled or flared in the direction that the spur 110 travels (the arc that the spur 110 sweeps) as its sidewall is raised so the spur 110 is easily and quickly received by the opening 128 and inserted into the guide channel 120.
  • the spur 110 can also be angled or curved in the direction of the opening 128 for aiding in the fast and accurate alignment of the sidewalls and end walls.
  • the spur 110 includes two tabs 112 as shown in FIG. 6. As the sidewalls 34, 36 are rotated toward their upright position, their spurs 110 each move toward one of the guiding channels 120. When each spur 110 reaches its respective guiding channel 120, it is received in the opening 128 and its tabs 112 move along the tracks 127 behind members 125 prior to the sidewall coming to a vertical position. The members 125 prevent the sidewalls 34, 36 from moving relative to the end walls 44, 46 in the direction of the interior of the container 10. This increases the acciiracy of the wall alignment and reduces the effort and time needed to lock the walls together in their upright positions.
  • the meshing of the spurs 110 and the guiding channels 120 pulls the corners of the container walls 34, 36, 44, 46 together so that a tight fit is created.
  • the meshing also aligns the walls with each other so that a latching system 200 can securely hold them together with the minimum number of steps being performed.
  • the spur 110 and the tracks 127 can have any cooperating shapes that permit the walls to be closely aligned as the flange 54 passes over the latching system 200 as discussed below.
  • the spur 110 could have an "L" shape and the tracks 127 a cooperating groove
  • the spurs 110 extend from the flanges 52 and the guiding channels 120 are located on the sidewalls 34, 36.
  • the container 10 also includes a plurality of wall latching systems 200 for releasably latching adjacent side and end walls together when the side and end walls are in their upright positions.
  • Each wall latching system 200 includes a latching member 210 that is operatively mounted proximate the ends of each end wall 44, 46 near the flanges 52.
  • the latching system 200 also includes a latching surface 220 on an inwardly facing surface of a cooperating sidewall 34, 36.
  • Each latching member 210 is formed of the same material as the container 10 and positioned within an opening 230 in its respective end wall.
  • Each latching member 210 includes an inner or actuating face 215 that is on the side of the latching member 210 and its respective end wall that faces into the interior of the container 10. The actuating face 215 is contoured as shown in FIG. 10.
  • the latching members 210 are secured to their respective end wall along a single edge 211, see FIG. 9.
  • the edge 211 including hole 244 forms a hinge region 212 about which latching member 210 flexes.
  • the hole 244 helps to distribute the bending stresses created at edge 211 over the entire hinge region 212 so that the stresses are not localized and do not cause premature failure of the container 10.
  • the plastic deformation of the material that forms the hinge region 212 allows the latching member 210 to flex in response to pressure that is applied to its inner face 215.
  • this pressure can be caused by an operator pressing the latching member 210 in order to release the sidewall or by a flange 54 passing over the latching member 210 as the sidewall is being moved to its upright position, as discussed below.
  • the biasing strength of the hinge that opposes movement of the latching member 210 is provided by a spring that acts on a rear or side surface of the latching member 210.
  • the latching member 210 includes a first portion 241 that is flat and coplanar with its respective end wall.
  • the latching member 210 also includes a second portion 242 that is inclined toward a third portion 243.
  • This inclined profile of the latching members 210 along their second portions 242 permit the sidewalls to be easily and smoothly raised from their folded positions to their upright positions as they pass over their respective latching members 210.
  • a ribbed contact portion 220 of its flange 54 begins to contact the latching member 210 at the second portion 242. This contact causes the latching member 210 to begin to flex at the hinge region 212.
  • latching member 210 will not be flexed until after the sidewall and cooperating end wall have been properly aligned.
  • the second portion 242 extends away from its respective end wall in the direction of the interior of the container 10.
  • the third portion 243 extends further into the interior of the container that does the second portion 242. Therefore, when the third portion 243 contacts the flange 54, it forces the hinge 212 to experience full flexion. At this point, the third portion 243 becomes flush with the inner surface of its end wall. When this occurs, the latching member 210 is deflected far enough away from the interior of the container and into opening 230 that the flange 54 can easily move past it and into a locking position.
  • the latching member 210 springs back into its original rest position and retains the latching surface 220 of the flange 54 behind it.
  • the latching surface 220 of the flange 54 is behind the latching member 210, its respective sidewall is stopped from moving relative to the other walls and toward the base 14.
  • the second portion 242 and the third portion 243 can also be deflected to the above-mentioned extent by depressing a recess 244, or other area, on the second section 242.
  • recess 244 When recess 244 is depressed by a person, it causes the hinge 212 to flex and the latching member 210 to move into opening 248. The more pressure applied to the latching member 210, the more deflection that the latching member 210 will experience.
  • third portion 243 is flush with the inner face of its end wall, the respective sidewall is free to rotate back toward the base 14 and into its folded position.
  • moving the sidewalls 34, 36 from their folded position to their upright position requires only sufficient force to drive the flanges 54 into the latching members 210 and deflect the latching members 210 until they are substantially flush with the inner surface of their respective end walls.
  • the rear side 245 of the latching member 210 includes a deformation prevention member 250.
  • the rear side 245 faces away from the interior of the container.
  • the deformation prevention member 250 includes an arm 251 that extends away from the rear side 245.
  • the arm 251 includes a terminal end 252 that is spaced far enough from a horizontally extending stop wall 246 that the latching member 210 can be flexed until third portion 243 is flush with the inner surface of its end wall.
  • terminal end 252 is spaced close enough to wall 246 that the hinge 212 will not experience irreversible elastic deformation in response to pressure being applied to the latching member 210.
  • the deformation prevention member is not on a rear surface of the latching member 210. Instead, it extends outwardly away from a rear surface of its respective end wall or sidewall and contacts the back of latching member 210 in order to prevent the hinge 212 from being bent to a point where it experiences irreversible deformation.
  • the top surfaces 43 of the sidewalls 34, 36 and the end walls 44, 46 are contoured. These surfaces 43 have a plurality of stacking tabs 58 that extend upwardly in a direction away from base 14 for being received in pockets 62. As shown in FIG. 2, the receiving pockets 62 are positioned along the bottom, outer edge of the base 14 so that the container 10 can be securely stacked on top of another container in ether a chimney stack or a cross stack pattern. As is well known in the art, chimney stacking includes positioning containers on top of each other so that they are all oriented in the same direction.
  • cross stacking includes stacking the containers so that containers from adjacent rows are oriented in alternate directions and containers from alternating rows are oriented in the same direction.
  • the stacking tabs 58 and the receiving pockets 62 permit a user of these containers to interlock them while their walls are in an upright position.
  • a plurality of the stacking tabs 58 engage a corresponding number of receiving pockets 62 in order to prevent relative movement between the stacked containers.
  • the shape of the stacking tabs 58 and receiving pockets 62 is rectangular. However, any shape that can be used to securely stack containers on top of each other could be employed. Also, it is possible for the stacking tabs 58 to extend from the bottom of the base 14 and the receiving pockets to be positioned around the top surfaces. It is also possible for the container 10 to nest with other containers when the sidewalls 34, 36 and end walls 44, 46 are in folded positions.
  • the sidewalls 34, 36 can have any height. However, when the combined height of the sidewalls 34, 36 including their stacking tabs 58 is greater than the width of the base 14, as shown in FIG. 15, the top surface 43 of each sidewall 34, 36 includes recesses 56. These recesses 56 correspond to and receive the stacking tabs of the opposing sidewall when the sidewalls 34, 36 are folded. The recesses 56 eliminate the need for the sidewalls 34, 36 to be folded on top of each other. As a result, the folded height of the container 10 remains low because the height of the bottom panel 15 is not increased so that the end walls 44, 46 can be folded over the sidewalls 34, 36.
  • the relationship between the stacking tabs 58 and the recesses 56 is clearly shown in FIGS. 1 and 15.
  • the recesses 56 can also be used to receive other portions of an opposing sidewall.
  • the top surface 43 of each sidewall does not need to be notched as shown in FIGS. 15 and 16.

Landscapes

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

Abstract

La présente invention concerne un contenant comprenant des première et seconde parois latérales et des première et seconde parois d'extrémité reliées à une base. La base, les parois latérales respectives, ou la paroi d'extrémité respective sont composées d'un matériau présentant une conductivité thermique élevée. Au moins chacune des parois latérales ou chacune des parois d'extrémité peut être pourvue d'un évent pour promouvoir le flux d'air. Les première et seconde parois d'extrémité et les première et seconde parois latérales sont reliées de manière pivotante à la base.
PCT/CA2010/001751 2009-11-11 2010-11-10 Contenant à refroidissement automatique Ceased WO2011057388A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26025609P 2009-11-11 2009-11-11
US61/260,256 2009-11-11

Publications (1)

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WO2011057388A1 true WO2011057388A1 (fr) 2011-05-19

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PCT/CA2010/001751 Ceased WO2011057388A1 (fr) 2009-11-11 2010-11-10 Contenant à refroidissement automatique

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US (1) US20110108558A1 (fr)
CA (1) CA2720706A1 (fr)
WO (1) WO2011057388A1 (fr)

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CH707672A2 (de) * 2013-03-01 2014-09-15 Utz Georg Holding Ag Aufklappbarer Behälter.
WO2017173483A1 (fr) * 2016-04-05 2017-10-12 David James Cooper Panier
US10065763B2 (en) 2016-09-15 2018-09-04 Arena Packaging, Llc Wall latching system
DE202016106088U1 (de) * 2016-10-28 2017-02-06 Georg Utz Holding Ag Klapp-Behälter
CL2017001655S1 (es) * 2017-06-02 2017-11-03 Wenco Sa Caja plástica
USD951640S1 (en) * 2019-05-14 2022-05-17 Schoeller Allibert Gmbh Container with removable bins
USD948218S1 (en) * 2019-11-18 2022-04-12 Macro Plastics, Inc. Bin
AU2020100299B4 (en) * 2020-01-20 2020-09-10 Hannay Douglas Pty Ltd Produce container for use with vapour heat treatment
USD930985S1 (en) * 2020-03-27 2021-09-21 Zhejiang Yimei Technology Co., Ltd. Collapsible storage box
CN112617471B (zh) * 2020-11-19 2022-10-14 四川工程职业技术学院 一种基于物联网的计算机设备防护装置

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US5727711A (en) * 1996-12-03 1998-03-17 Her Majesty In Right Of Canada, As Represented By The Minister Of Agriculture And Agri-Food Canada Reusable containers for the preservation of fresh fruits and vegetables
WO2000068101A2 (fr) * 1999-05-06 2000-11-16 Cso Centro Servizi Ortofrutticoli Soc. Coop. A R.L. Recipient plastique empilable avec parois repliables, en particulier pour fruits et legumes
US20070080162A1 (en) * 2005-10-11 2007-04-12 Cool Options, Inc. Thermally conductive resin article for food contact and food processing and method for manufacturing same

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CA2720706A1 (fr) 2011-05-11
US20110108558A1 (en) 2011-05-12

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