EP0575394A1 - Disposition de bacs. - Google Patents

Disposition de bacs.

Info

Publication number
EP0575394A1
EP0575394A1 EP92906016A EP92906016A EP0575394A1 EP 0575394 A1 EP0575394 A1 EP 0575394A1 EP 92906016 A EP92906016 A EP 92906016A EP 92906016 A EP92906016 A EP 92906016A EP 0575394 A1 EP0575394 A1 EP 0575394A1
Authority
EP
European Patent Office
Prior art keywords
container
arrangement according
load
side wall
frame
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.)
Granted
Application number
EP92906016A
Other languages
German (de)
English (en)
Other versions
EP0575394B1 (fr
Inventor
Marco Batic
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.)
Pebra GmbH
Original Assignee
Pebra GmbH
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 Pebra GmbH filed Critical Pebra GmbH
Publication of EP0575394A1 publication Critical patent/EP0575394A1/fr
Application granted granted Critical
Publication of EP0575394B1 publication Critical patent/EP0575394B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B65D21/0216—Containers with stacking ribs in the side 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
    • 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
    • B65D21/0215—Containers with stacking feet or corner elements

Definitions

  • the invention relates to a container arrangement with a plurality of plastic containers which can be stacked one above the other and which have a container base and at least three, preferably four, projecting beyond the container base and connected to one another at container corners and forming a common circumferential container top edge.
  • stacking containers In the material flow of industrial companies, workpieces are often delivered in containers, temporarily stored and brought to the respective work place. For transport and storage purposes, these containers must be stackable to form container arrangements and must therefore be provided with stacking edges in the area of their lower and upper edges.
  • the known stacking edges are designed to run all around, the upper edge of the container simultaneously forming a supporting edge for the stacking container located above it.
  • the stacking containers In adaptation to the usual pallet size, the stacking containers are mostly designed as flat containers with a base area of 1,200 x 800 mm, with containers made of metal (steel or aluminum) being used exclusively for reasons of strength. It was perceived as a disadvantage that the containers are relatively heavy, often heavier than the goods to be transported.
  • the invention is based on the object of developing a container arrangement with plastic containers which can be stacked one on top of the other and which, despite the thin-walled and therefore lightweight construction, is capable of absorbing relatively high stacking and carrying loads.
  • the invention is based above all on the idea that, in the case of thin-walled plastic containers with a large base area, additional precautions are necessary in order to be able to absorb the high stacking and transport loads which occur during transport and in order to prevent impermissible deflections and connections under uneven loading to avoid.
  • At least one side wall is on the inside of the container Distance from the corners of the container, a further load column, essentially projecting vertically above the bottom of the container, is integrally integrated in the plastic material of the container, the lower end of which is connected to the bottom of the container and the upper end faces are arranged at a distance below the upper edge of the container, and an additional one Forms a support surface for the further container which engages with its bottom into the interior of the container from above.
  • the further load-bearing columns are expediently arranged in the center in two opposite broad side walls of the container, which is essentially rectangular in plan.
  • a further advantageous embodiment of the invention provides a concave stacking step which is molded into the outside of the container bottom and is open at the bottom and outside, the height of which is somewhat greater than the distance between the upper edge of the container and the end face of the load column and the depth of which is approximately the side wall strength corresponds.
  • a circumferential convex bottom edge step corresponding to the stacking step can be arranged on the inside of the container.
  • the load-bearing columns should have at least a thickness corresponding to the side wall thickness, a thickness corresponding to the depth of the base edge step having proven to be particularly expedient.
  • the load-bearing columns arranged in the corner area have a preferably flat boundary surface oriented obliquely to the adjacent side walls towards the inside of the container.
  • the load-bearing columns expediently form a cylinder segment molded into the cylindrically rounded corners.
  • a further improvement in this regard is achieved if the additional load columns arranged in the area of the side walls have a trapezoidal or part-circular cross-section tapering towards the interior of the container.
  • the stacking and transport forces are directed downward exclusively via the load columns, while the side walls have to absorb predominantly transverse loads due to the existing positive locking, the load columns additionally functioning as reinforcing ribs within the Take over side walls.
  • the side walls and the bottom surfaces can thereby be made relatively thin-walled.
  • the investigations carried out in this connection have shown that the side wall thickness should nevertheless be chosen to be greater than, preferably twice as large as, the base wall thickness. With a footprint of approximately 1
  • the load columns according to the invention only fulfill their function if they are vertically one above the other. If one takes into account that the side walls of the containers, which are made of plastic, preferably in the RIM process (Reaction Injection Molding), must have a draft angle, the load-bearing columns only come into play at relatively low side wall heights
  • the low container height has the advantage that the draft angle can be relatively small, so that the draft angle can advantageously be chosen between 0.4 ° and 1 °.
  • a bottomless container frame made of plastic, which has at least three, preferably four, connected to one another at frame corners, a common peripheral upper edge and lower edge has forming side walls, whose side walls on the inside of the container in the loading Rich the frame corners and possibly projecting at a distance from the frame corners, integrally integrated in the plastic material load columns, whose lower end extends to the vicinity of the lower edge and whose upper end face is arranged at a distance below the upper frame edge and a support surface for one of above with its bottom or its lower edge forms a container or frame which engages in the frame interior, and which contains a circumferential stacking step which is formed on the outside in the area of the lower edge of the frame and which is open to the outside, the height of which is somewhat greater than the distance between the upper edge of the frame and the end face of the load column and the depth of which corresponds approximately to the side wall thickness and / or the
  • a connecting strip can be attached, for example screwed or glued, from the inside in the area of the load bearing pillars.
  • the screw holes can be formed in the course of the manufacture of the frame or subsequently drilled. All connecting elements, including the strips and screws, are expediently produced from the same material in order to avoid problems with thermal expansion and to ensure simple recycling.
  • the bottomless container frames and containers can be produced with the same molds if an interchangeable insert in the form of a plate adapted to the base wall thickness is used for the base part.
  • a major advantage of this design is that containers of different heights can be produced with a single tool.
  • Another advantage is that the tall containers, which are composed of relatively low container elements, have vertical side walls in the assembled state, which are only somewhat jaggedly structured within the wall. In the overall production of a correspondingly high container, no vertical side walls would arise due to the necessary draft angles, and thus usable space and strength would be lost.
  • each side wall there is at least one recessed grip which is molded into the side wall and the container bottom, is open on the outside of the container to the side and downwards, and is closed towards the inside of the container.
  • the recessed grip can be formed by a bulge of material protruding from the side wall and from the bottom of the container into the interior of the container.
  • the recessed grip which is open towards the edge, also has the function of a locking element and a stiffening element, it being particularly advantageous if the recessed grip is arranged in the middle between two adjacent load columns.
  • the Grip recesses have a trapezoidal outline which is open at the bottom and widens, the side flanks of the trapezoidal grip recesses being inclined and the upper flank being oriented perpendicular to the side walls.
  • the central load-bearing column serves as an extension of the corner load-bearing columns of the smaller containers. Since the smaller containers also have to absorb smaller forces, and because of the additional partition a stiffening is achieved, the existing load columns are sufficient for support.
  • the middle load-bearing column only has to be made wide enough so that a direct load transfer via the load-bearing columns is possible.
  • large containers can also be stacked on smaller ones. This can be done in that a suitably shaped between the containers Cover plate is placed.
  • the container bottom has a channel which extends between two opposite load-bearing columns arranged in the center of the side walls and is open at the bottom and corresponds in depth to the height of the stacking step, and that the container thus has two other containers which are arranged closely next to one another, preferably half as large, are stacked in such a way that their groove overlaps the upper edges of the mutually facing side walls of the other containers and with their centrally arranged load columns on the corner load columns of the other containers located below is supported.
  • a pallet is provided for the form-fitting reception of a container or stack of containers, it being possible to arrange cams which protrude on the surface of the pallet and engage positively with the recesses of a container seated thereon.
  • the cams expediently have a smaller height than the recessed grips, so that the intended function of the recessed grips can also be used in the lowest container.
  • open-ended cut-outs can be provided with positive locking teeth.
  • a container lid which engages with its underside in the container and rests on the load-bearing columns and which can have at least one trough which is open at the top for positively adjusting a pallet or a container.
  • an insert bed adapted to the inner contour of the container is expediently provided, preferably made of self-supporting foam plastic, which in turn has at least one recess adapted to the contour of a transport object and with the production of a positive connection even without the container other insert beds should be stackable and palletizable.
  • FIG. 1 shows an end view of a container arrangement with three palletized container stacks
  • Fig. 3 shows a section along the section line 3-3 of the Fig. 2;
  • FIG. 4 shows a section along the section line 4-4 of FIG. 2;
  • FIG. 5 shows a section along the section line 5-5 of FIG. 2;
  • FIG. 6 shows a section along the section line 6-6 of FIG. 2;
  • FIG. 7 shows a detail from FIG. 2 with recessed grip
  • FIG. 8 shows a section along the section line 8-8 of FIG. 7 with an additional cross section through the side wall in the region of the recessed grip;
  • FIG. 9 shows a section corresponding to FIG. 3 through a double-height container
  • Fig. 10 is an inside view of the cut double tall container in the direction of the container corner.
  • each container stack each with eight flat plastic containers 12, a pallet 14 and a container lid 16, are stacked one above the other.
  • the containers 12 stacked one above the other engage with their bottom part in a form-fitting manner in the container located underneath, while the bottom container 12 of each stack has a positive fit and thereby rests non-slip on the associated pallet 14.
  • each lid 16 engages in the uppermost container of a stack 10 in a form-fitting manner and forms an adjustment trough (not shown) for the pallet 14 located above it.
  • the stacking and transport load is diverted downward via load columns 18, 20 in the container side walls.
  • the load bearing columns 18 are arranged in the region of the rounded corners 22 between adjacent narrow side walls 24 and broad side walls 26, while the load bearing pillars 20 are arranged in the middle region of the opposite ones Broad side walls 26 are egg-shaped.
  • the load-bearing pillars 18 have the shape of a cylinder segment delimited after the interior of the container by a flat boundary surface 28, while the load-bearing pillars 20 are trapezoidal in cross-section.
  • the load-bearing pillars 18, 20 are connected at their lower end directly to the container base 30 and end at their upper end face 32, 32 ′′ at a small distance d below the upper container edge 34.
  • the containers have a circumferential, concave stacking step 36 on their lower edge , the height of which is slightly greater than the distance d and which ensures that the containers 12 stacked one above the other form-fittingly by overlapping the respective upper edge 34 and supporting the base 30 on the end faces 32, 32 'of the load-bearing columns 18, 20 of the container below each other intermesh 36 forms a circumferential bottom edge step 40 pointing towards the inside of the container for reasons of material savings.
  • the container bottom 30 only has approximately half the wall thickness of the side walls, while the thickness of the load bearing pillars corresponds approximately to the side wall thickness ( 4 and 5).
  • the recessed handles 42 which are open both downwards and laterally outwards and are closed by a bulge 44 pointing towards the interior of the container.
  • the bulges 44 also form an effective reinforcement of the thin-walled side walls 24, 26.
  • the recessed handles have a trapezoidal outline widening downwards in the side view, the side flanks 46 additionally projecting obliquely beyond the associated side walls towards the interior of the container, while the top flank 48 is parallel to the Container bottom 30 runs.
  • latching cams 50 can be provided for the positive connection to the stack of containers, said cams interlocking with the recesses 42 of the bottom container 12.
  • the container shown in FIGS. 9 and 10 is composed of two parts, a lower container 12 and one with its lower edge 60 placed on its upper edge 34 and by means of an adhesive layer 62 this glued bottomless container frame 12 ".
  • the container frame 12" has in the region of its lower edge 60 a stacking step 36 and a circumferential convex bottom edge step 40 corresponding to the stacking step and is supported with its load-bearing columns 18 on the load-bearing columns of the lower container 12.
  • the container 12 and the container frame 12 ' are rigidly connected by connecting strips 66 screwed onto the inside of the load-bearing columns 18 by means of screws 64.
  • the connecting strips 66 and the screws 64 expediently consist of the same plastic material as the container 12 and the container frame 12 '.
  • the container has a height h, a side wall thickness w and an E ⁇ tformwinkel O.
  • the thickness of the load columns corresponds essentially to the wall thickness w.
  • the draft angle f is chosen to be so small at about 0.5 ° that an almost vertical outer wall with a small step is formed in the region of the adhesive joint 62.
  • the invention relates to a container arrangement with a plurality of containers 12 made of plastic, which can be stacked one on top of the other, and which has a common umlau, a container bottom 30 and four projecting over the container bottom, connected to one another at rounded container corners 22 ⁇ Fenden container upper edge 34 forming side walls 24,26.
  • integral load-bearing columns 18, 20 projecting substantially vertically above the container base 30 are integrated in the plastic material of the container on the inside of the container in the area of the container corner 22 and the side walls 26.
  • the lower end of the load-bearing pillars 18, 20 is connected to the container bottom 30, while the upper end faces 32, 32 ′ are arranged at a distance d below the upper container edge 34 and a support surface for a further bottom 30 from above into the interior of the container engaging container 12 forms.
  • the container material consists of a high-strength reaction plastic based on polydicyclopentadiene.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

La présente invention se rapporte à un procédé de disposition de bacs comportant plusieurs bacs superposables (12) en matière plastique qui présentent un fond (30) et quatre parois latérales (24, 26) s'élevant depuis le fond du bac et reliées entre elles à des coins arrondis (22), en formant une arête supérieure périphérique (34). Afin de supporter les charges élevées des empilements et du transport malgré les parois minces du bac, des colonnes de support de charge (18, 20) s'élevant sensiblement verticalement depuis le fond (30) du bac sont intégrées d'une seule pièce dans la matière plastique du bac à l'intérieur du bac au voisinage des coins de bacs (22) et des parois latérales (26). L'extrémité inférieure des colonnes de support (18, 20) est reliée au fond (30) du bac, alors que les faces frontales supérieures du bac (32, 32') sont disposées à une certaine distance (d) sous l'arête supérieure (34) du bac et forment une surface de support pour un autre récipient (12) s'emboîtant par le dessus avec son fond (30) à l'intérieur du bac (12). Le matériau du bac est une matière plastique de réaction à résistance élevée à base de polydicyclopentadiène.
EP92906016A 1991-03-15 1992-03-10 Disposition de bacs Expired - Lifetime EP0575394B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4108373 1991-03-15
DE4108373 1991-03-15
PCT/EP1992/000521 WO1992016419A2 (fr) 1991-03-15 1992-03-10 Disposition de bacs

Publications (2)

Publication Number Publication Date
EP0575394A1 true EP0575394A1 (fr) 1993-12-29
EP0575394B1 EP0575394B1 (fr) 1995-06-28

Family

ID=6427335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92906016A Expired - Lifetime EP0575394B1 (fr) 1991-03-15 1992-03-10 Disposition de bacs

Country Status (3)

Country Link
EP (1) EP0575394B1 (fr)
DE (2) DE59202743D1 (fr)
WO (1) WO1992016419A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10479554B2 (en) 2013-09-09 2019-11-19 Kraft Foods Group Brands Llc Container and lid
USD882397S1 (en) 2013-09-09 2020-04-28 Kraft Foods Group Brands Llc Lid
USD910435S1 (en) 2019-03-13 2021-02-16 Kraft Foods Group Brands Llc Container
USD948331S1 (en) 2018-07-31 2022-04-12 Kraft Foods Group Brands Llc Container
USD967702S1 (en) 2018-10-02 2022-10-25 Kraft Foods Group Brands Llc Container
USD991784S1 (en) 2018-10-02 2023-07-11 Kraft Foods Group Brands Llc Container

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416418A1 (de) * 1994-05-10 1995-11-23 Novopack Maschinenbau Gmbh Warenträger
CH693377A5 (de) * 1999-01-12 2003-07-15 Schoeller Internat Engineering Transportbehälter zur Aufnahme von Transportgütern
EP2288552B1 (fr) * 2008-05-08 2012-08-15 Huhtamaki Nederland B.V. Emballage alimentaire

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1309970A (fr) * 1963-03-04
US2773624A (en) * 1954-09-20 1956-12-11 Calresin Ind Inc Plastic case for transporting packaged fresh milk
US2960134A (en) * 1959-06-01 1960-11-15 Hollywood Plastics Inc Stackable plastic container
GB964930A (en) * 1962-07-05 1964-07-29 Monro Guernsey Ltd Improvements in or relating to trays and like open topped boxes
CH517623A (de) * 1970-06-25 1972-01-15 Alexander Dipl Ing Schoeller Einstückig aus Kunststoff bestehender Warentransportkasten
FR2219884B3 (fr) * 1973-03-01 1975-10-24 Ponsy Jacques
FR2223248A1 (en) * 1973-03-29 1974-10-25 Allibert Exploitation Plastic crate for stacking in piles - sides are strengthened by hollow pillars to allow stacking at right angles
CH572418A5 (en) * 1973-12-17 1976-02-13 Utz Ag Georg Fruit and vegetable crate - has triangular corner sections with stacking support face near top

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9216419A3 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD882397S1 (en) 2013-09-09 2020-04-28 Kraft Foods Group Brands Llc Lid
USD885181S1 (en) 2013-09-09 2020-05-26 Kraft Foods Group Brands Llc Lid
US12122557B2 (en) 2013-09-09 2024-10-22 Kraft Foods Group Brands Llc Container and lid
US11192687B2 (en) 2013-09-09 2021-12-07 Kraft Foods Group Brands Llc Container and lid
US10479554B2 (en) 2013-09-09 2019-11-19 Kraft Foods Group Brands Llc Container and lid
US11702245B2 (en) 2013-09-09 2023-07-18 Kraft Foods Group Brands Llc Container and lid
USD992415S1 (en) 2018-07-31 2023-07-18 Kraft Foods Group Brands Llc Container
USD948331S1 (en) 2018-07-31 2022-04-12 Kraft Foods Group Brands Llc Container
USD995289S1 (en) 2018-07-31 2023-08-15 Kraft Foods Group Bands LLC Container
USD967702S1 (en) 2018-10-02 2022-10-25 Kraft Foods Group Brands Llc Container
USD991784S1 (en) 2018-10-02 2023-07-11 Kraft Foods Group Brands Llc Container
USD1010439S1 (en) 2018-10-02 2024-01-09 Kraft Foods Group Brands Llc Container
USD990324S1 (en) 2019-03-13 2023-06-27 Kraft Foods Group Brands Llc Container
USD1003168S1 (en) 2019-03-13 2023-10-31 Kraft Foods Group Brands Llc Container
USD910435S1 (en) 2019-03-13 2021-02-16 Kraft Foods Group Brands Llc Container

Also Published As

Publication number Publication date
WO1992016419A2 (fr) 1992-10-01
DE59202743D1 (de) 1995-08-03
DE4207545A1 (de) 1992-09-17
WO1992016419A3 (fr) 1992-11-26
EP0575394B1 (fr) 1995-06-28

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