EP3652088B1 - Palettencontainer - Google Patents

Palettencontainer Download PDF

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Publication number
EP3652088B1
EP3652088B1 EP18745495.4A EP18745495A EP3652088B1 EP 3652088 B1 EP3652088 B1 EP 3652088B1 EP 18745495 A EP18745495 A EP 18745495A EP 3652088 B1 EP3652088 B1 EP 3652088B1
Authority
EP
European Patent Office
Prior art keywords
tubular
profile
pallet container
container according
rods
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.)
Active
Application number
EP18745495.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3652088A1 (de
Inventor
Detlev Weyrauch
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.)
Mauser Werke GmbH
Original Assignee
Mauser Werke 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 Mauser Werke GmbH filed Critical Mauser Werke GmbH
Priority to HRP20211832TT priority Critical patent/HRP20211832T1/hr
Priority to PL18745495T priority patent/PL3652088T3/pl
Publication of EP3652088A1 publication Critical patent/EP3652088A1/de
Application granted granted Critical
Publication of EP3652088B1 publication Critical patent/EP3652088B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
    • B65D77/0453—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section
    • B65D77/0466—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section the containers being mounted on a pallet
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags

Definitions

  • the invention relates to a pallet container for the storage and transport of liquid or flowable filling goods with a thin-walled inner container made of thermoplastic material, with a tubular lattice frame that tightly encloses the plastic inner container as a support jacket made of horizontal and vertical tubular bars welded together, and with a rectangular floor pallet, on which the plastic container rests and with which the tubular lattice frame is firmly connected.
  • pallet containers In the chemical industry, pallet containers (common designation "Intermediate Bulk Container” or “IBC”; henceforth also referred to as “IBC” or “IBC” for short) are used on a large scale for the transport of liquid chemicals. Most of these chemical products are classified as dangerous liquid filling goods. Therefore, only packaging containers with a corresponding approval for hazardous goods may be used for the transport and storage of such products. In order to obtain approval for dangerous goods, the pallet containers are subjected to a type test, for which tests with regard to various load conditions must be passed, such as B. an internal pressure test, a drop test, a stacking load test, a vibration test on a vibrating table and much more.
  • a type test for which tests with regard to various load conditions must be passed, such as B. an internal pressure test, a drop test, a stacking load test, a vibration test on a vibrating table and much more.
  • Filled IBCs are usually z. B. transported on a truck in a double stack, so that the lower IBC must also carry the stacking load of the upper IBC.
  • the transport jolts and movements of the transport vehicle - especially on poor routes - cause considerable surge movements of the liquid filling material, which means that constantly changing pressure forces are exerted on the walls of the inner container, which in turn lead to radial oscillating movements in the case of rectangular pallet containers of the tubular lattice frame and represent dynamic permanent vibrations with alternating tensile / compressive loads on the welding points at the intersection of the lattice tube bars.
  • the Pipe rods lead to fatigue fractures and the breaking of weld spots at the crossing points.
  • special measures are often provided to reduce such damage.
  • a pallet container in which the vertical and horizontal tube bars consist of a round tube base profile that is strongly compressed at the welded crossing points in order to obtain a 4-point support for electrical resistance welding of the crossed tubes.
  • the round tube base profile of the vertical and horizontal bars of the tube lattice frame is depressed significantly and only in the area of the intersection points on the side of the welds and is significantly lower in bending resistance than in the rest of the area.
  • the round tube base profile is indented deeper and further weakened in the same indentation directly next to the crossing points to relieve the welding points from occurring bending stresses.
  • the horizontal and vertical bars of the tubular lattice frame consist of a hollow profile, potentially a square tube as the base profile.
  • the vertical and / or horizontal tubular rods are essentially free of indentations in their plane of contact in the area of the crossing points and the tubular rods are each laterally in addition to a crossing point or welding point with corresponding indentations in the pipe base profile - as target bending points - are provided, each of which has a certain minimum distance of at least one tenth of the pipe profile width from the welding points.
  • An increased flexural elasticity of the tubular lattice frame is achieved if at least two indentations are provided in the vertical and / or horizontal tubular bars between two crossing points.
  • the present invention is based on the object of increasing the rigidity of the tubular lattice frame of pallet containers (IBCs) and thus ensuring increased safety of such large containers when used in particular for dangerous liquid filling goods.
  • IBCs tubular lattice frame of pallet containers
  • the proposed technical teaching shows a possibility of how the rigidity of the tubular lattice frame of pallet containers can be increased with a comparatively simple structural measure.
  • the original base profile of at least one horizontal and / or vertical tubular rod is raised by a predeterminable piece in the longitudinal direction of the tubular rod over a crossing area of the welded horizontal and vertical tubular rods and is provided with a raised back area.
  • the basic profile of the tubular rods is here not indented and weakened but, on the contrary, stiffened and reinforced by the raised back area extending over a crossing area of the horizontal and vertical tubular rods welded to one another.
  • the original base profile is in the Increase of the base pipe profile is formed by mechanical deformation by means of lateral pressure action from the original base profile and has a comparatively narrow back line running in the longitudinal direction of the pipe bar.
  • the bulging of the side walls of the tubular lattice frame is noticeably reduced by the action of the hydrostatic pressure of a filled pallet container.
  • the stiffer side walls of the tubular lattice frame an internal pressure occurring due to temperature changes z. B. better stand due to thermal expansion when exposed to sunlight.
  • the vibrations of the side walls of the tubular lattice frame during transport vibrations and surge loads are reduced by the liquid product. Overall, this results in lower stress loads on the tubular bars themselves and on the individual weld points at the intersections of the tubular grid bars.
  • the raised back area in the horizontal tubular rods is arranged exclusively on an outwardly and / or in the vertical tubular rods exclusively on an inward-facing side of the tubular rods - based on the tubular lattice frame.
  • the height of the tubular profiles is increased or increased in the radial direction or perpendicular to the side wall of the tubular lattice frame. So if the raised back area is arranged on a vertical rod, it should be formed on the side facing inward - in relation to the tubular lattice frame. If the elevation is arranged on a horizontal tubular rod, the raised back area should be formed on the side facing outwards. In this embodiment, there are no problems for the welding of the horizontal and vertical tubular rods lying on top of one another in the intersection areas.
  • the raised back area has a defined, limited extent in the longitudinal direction of the tubular rod.
  • An optimal one The increase in performance or rigidity of the tubular lattice frame is achieved when the extension of the raised back area in the longitudinal direction of the tubular rod is between twice and ten times, preferably five times, the tubular rod width or a tubular rod diameter.
  • Tubular rods with a square cross-section are particularly suitable for the simplest and most effective formation of the raised back area in terms of process technology, whereby the profile does not have to form a perfect square.
  • profiles with slight differences in the heights of the side walls or those with side walls that are not entirely parallel are particularly suitable square profiles in this sense.
  • the reference numeral 10 denotes a pallet container according to the invention for the storage and transport of particularly dangerous liquid or flowable filling goods.
  • the pallet container 10 fulfills special test criteria and is provided with a corresponding official dangerous goods approval.
  • the pallet container 10 has standardized dimensions with a length of approx. 1200 mm, a width of approx. 1000 mm and a height of approx. 1150 mm.
  • the main elements of the pallet container 10 consist of a thin-walled, rigid inner container 12 made of thermoplastic material in a blow molding process, a tubular steel lattice frame 14 that tightly encloses the plastic inner container 12 as a support jacket and a floor pallet 16 on which the plastic inner container 12 rests and with which the tubular steel lattice frame 14 is firmly connected.
  • the outer tubular lattice frame 14 consists of horizontal and vertical steel tubular rods 18, 20 welded together.
  • the closed base profile BP of the horizontal and vertical tubular rods 18, 20 has no indentations or indentations that reduce the height of the profile transversely to the longitudinal direction of the tubular rod.
  • the floor pallet 16 is designed as a composite pallet.
  • an inscription board 22 made of thin sheet steel is attached to identify the respective liquid filling material.
  • the horizontal tubular rods 18 are firmly welded in intersection areas 26 to the vertical tubular rods 20 of the tubular lattice frame 14 via a 4-point support by means of conventional resistance pressure welding.
  • the tubular steel lattice frame 14 consists of eighteen vertical tubular rods 20 with a length of approx. 1000 mm each and six circumferential horizontal tubular rods 18, which have four 90 ° bends with a total length of approx. 4400 mm each and a connection point of the two pipe ends are formed into a rectangular pipe ring.
  • the pallet container 10 can also be designed as a large container in various volume sizes between 500 l and 1300 l.
  • FIG. 2 is shown as a preferred embodiment, a tubular bar base profile BP with an almost square tube cross-section in cross-sectional view.
  • This original basic profile BP as a square profile - here a vertical tubular rod 20 - has no indentations or indentations at all transversely to the longitudinal direction of the tubular rod.
  • the external dimensions are approx. 16 x 16 mm, so the height H ( Q ) as the side length of the square profile is also 16 mm.
  • the previous wall thickness of the tubular rods of 1.0 mm can be reduced, the square profile then having a reduced wall thickness of 0.7 mm to 1.0 mm, preferably 0.9 mm.
  • the square profile of the vertical tubular rods 20 has a wall thickness of 0.8 mm and the square profile of the horizontal tubular rods 18 has a wall thickness of 0.9 mm.
  • the basic square profile BP preferably has two opposite parallel straight side walls 32 and two opposite almost parallel, slightly curved side walls 34, 36, one curved side wall 34 being slightly concave inward and the other curved side wall 36 being slightly convex outward.
  • the slightly concave inwardly curved side walls of the tubular rods 18, 20 each have a flat in the longitudinal direction of the tubular rod on their two lateral outer edges running back line 40.
  • the horizontal pipe rods 18 and vertical pipe rods 20 each lie on top of one another with their slightly concave inwardly curved side walls 34 or with their two outer longitudinal back lines 40 and form the necessary 4-point supports for welding the pipe rods 18, 20.
  • the slightly convex outwardly formed side wall 36 of the square base profile is in the area of the crossing points 26, at which it is desired and provided, to be more easily formed into a triangular forming profile with a centrally formed back piece 30 by applying pressure on both sides.
  • the back-like elevations are created from the basic profile square tube by cold forming using simple hydraulic pressing tongs.
  • the two opposite parallel straight side walls 32 and the slightly convex outwardly cambered side wall 36 have each been half formed into two isosceles triangular side walls 38.
  • the two 90 ° bends between the two opposite, parallel straight side walls 32 and the slightly convex outwardly cambered side wall 36 in the formed two triangular side walls 38 result in two outward-pointing cusps 48.
  • Profile BP was originally formed into a square profile from a steel round tube in a roller mill.
  • the four 90 ° bends between two adjacent side walls were formed by cold forming. In the case of cold deformation, there is a local increase in strength due to structural changes in the steel material.
  • the two side walls 36 which are slightly convex outwardly cambered, become adjacent 90 ° bends bent up again. Due to the increase in strength in the two 90 ° bends, the bending back does not take place completely and the two humps 48 remain in the two isosceles triangular side walls 38.
  • the processing and reshaping of the basic profile tube rods does not take place in a direction perpendicular to the plane of the lattice walls but in a direction parallel to the plane of the lattice walls is exerted on the intended area of the tubular rod by two opposite side walls.
  • This pressure is applied to the two opposite parallel straight side walls 32, starting in an area or part of the square base profile which adjoins or is adjacent to the slightly convex outwardly curved side wall 36. This can e.g. B.
  • the basic profile square tube has a base side wall that is slightly cambered inwards, resulting in longitudinal ribs on the outside for 4-point resistance welding.
  • the two 90 ° bends opposite the base side wall are bent open and as close as possible to a straight line shape, while the straight side wall opposite the base side wall is shaped in the middle into a comparatively narrow curve with a small radius.
  • FIG Figure 4 Another embodiment of a known tubular bar base profile is shown in FIG Figure 4 shown in cross-sectional view.
  • This original tubular bar base profile is designed as a round tubular profile 42 and has a circular cross-section with an outer diameter D ( AR ) of approx. 18 mm and a wall thickness of 1.0 mm.
  • D outer diameter
  • D wall thickness
  • the round tube of known pallet containers suffers a great loss of rigidity or bending resistance moment.
  • This loss of rigidity can be well compensated for by reshaping in a further reshaping step to a triangular cross-sectional profile with the introduction of raised back areas 30, as shown in FIG Figure 6 can be seen.
  • This exemplary embodiment with a triangular hollow profile also has a profile height H D of at least 20 mm in the area of the raised back area 30.
  • FIG. 7 a side partial view of a vertical tubular rod 20 with a square cross-section is shown in FIG.
  • the horizontal tubular rod 18 has the same square-shaped cross section of the base profile BP.
  • the original square-shaped base profile BP of the vertical tubular rod 20 was reshaped into a triangular hollow profile with a central, raised back area 30.
  • the central raised back area 30 formed from the original base profile by mechanical deformation by means of lateral pressing pressure has a narrow back running in the longitudinal direction of the pipe, the raised back area 30 being limited to a defined extent in the longitudinal direction of the pipe.
  • This extension of the raised back region 30 in the longitudinal direction of the pipe should be between twice and ten times, preferably five times, the width or diameter of the pipe (in the case of a round pipe).
  • the forming process is carried out in such a way that the pressure exerted on the two opposite, parallel side walls z. B. is applied by two beveled tips of two pressing plungers of a pressing tool moving towards each other or the pivoting pliers jaws of pressing pliers, with a V-shaped gap between the tips of the pressing plunger or the pliers jaws of the pressing pliers resulting in a triangular one in the end position Pipe cross-section is formed with increased pipe profile height in the deformed area of the tubular rod.
  • FIG. 8 In a partial top view of a vertical tubular rod 20 with a square base cross-section from the inside out of the tubular lattice frame, the deformed triangular cross-sectional area of the vertical tubular rod 20 with the central raised back area 30 formed by deformation and transition areas 46 connected on both sides Inclined transition areas 46 should be approximately 1 to 2 times the height of a side wall of the square base profile, ie between 15 and 35 mm, preferably approximately 20 mm.
  • the measure of resistance to bending is referred to as the axial resistance moment W or also the bending resistance moment.
  • the section modulus represents in the technical mechanics is a quantity derived solely from the geometry (shape and dimensions) of a beam cross-section, which is a measure of the resistance a bending beam opposes when internal stresses are created.
  • the largest stresses ⁇ max in terms of amount always occur in the edge fibers of the bending beam, which are the greatest distance from the neutral fiber.
  • the section modulus W of a beam cross-section has a simple geometric relationship with the geometrical moment of inertia I , which is used to calculate the deformation to determine the bending stiffness of a beam under load when dimensioning the cross-section.
  • the moment of resistance W is defined as the quotient of the area moment of inertia I and the greatest stress ⁇ max .
  • the unit for the section modulus is m 3 .
  • the present invention thus offers an easy-to-use, properly functioning and inexpensive solution for an advantageous increase in the rigidity of the tubular lattice frames of pallet containers. No additional material is required, only a special and partial reshaping of the tubular bar base profile is used. And, on the contrary, it is even possible to achieve material and cost savings by reducing the wall thickness of the tubular rods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Packages (AREA)
EP18745495.4A 2017-07-13 2018-07-13 Palettencontainer Active EP3652088B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HRP20211832TT HRP20211832T1 (hr) 2017-07-13 2018-07-13 Paletni spremnik
PL18745495T PL3652088T3 (pl) 2017-07-13 2018-07-13 Kontener paletowy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017006653.1A DE102017006653B4 (de) 2017-07-13 2017-07-13 Palettencontainer
PCT/EP2018/000356 WO2019011468A1 (de) 2017-07-13 2018-07-13 Palettencontainer

Publications (2)

Publication Number Publication Date
EP3652088A1 EP3652088A1 (de) 2020-05-20
EP3652088B1 true EP3652088B1 (de) 2021-09-01

Family

ID=63012972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18745495.4A Active EP3652088B1 (de) 2017-07-13 2018-07-13 Palettencontainer

Country Status (20)

Country Link
US (1) US11208250B2 (https=)
EP (1) EP3652088B1 (https=)
JP (1) JP7155232B2 (https=)
KR (1) KR20200031131A (https=)
CN (1) CN110869290B (https=)
AU (1) AU2018299640B2 (https=)
BR (1) BR112020000587B1 (https=)
CA (1) CA3069605A1 (https=)
DE (1) DE102017006653B4 (https=)
ES (1) ES2898257T3 (https=)
HR (1) HRP20211832T1 (https=)
HU (1) HUE056478T2 (https=)
IL (1) IL271909B2 (https=)
MY (1) MY201434A (https=)
PL (1) PL3652088T3 (https=)
PT (1) PT3652088T (https=)
RU (1) RU2762921C2 (https=)
SG (1) SG11202000302QA (https=)
WO (1) WO2019011468A1 (https=)
ZA (1) ZA202000563B (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020150285A1 (en) * 2019-01-16 2020-07-23 CubeX Solar, LLC Foldable solar power system
DE102020127721A1 (de) 2020-10-21 2022-04-21 Protechna S.A. Transport- und Lagerbehälter für Flüssigkeiten
KR102715755B1 (ko) 2024-02-19 2024-10-11 (주)위아클 고청정도 클린용기 제조방법 및 이에 의해 제조된 고청정도 클린용기

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
AT298203B (de) * 1968-09-20 1972-04-25 Evg Entwicklung Verwert Ges Verfahren zum Herstellen von geschweißten Gittern aus Stahl
DE4206945C1 (https=) * 1991-03-15 1993-03-11 Schuetz-Werke Gmbh & Co. Kg, 5418 Selters, De
DE4322375C1 (de) * 1993-07-06 1995-01-12 Schuetz Werke Gmbh Co Kg Verfahren zur Herstellung ein- und doppelwandiger Innenbehälter aus Stahlblech
DE19511723C1 (de) 1995-03-30 1996-08-29 Protechna Sa Palettenbehälter
BR9713209A (pt) * 1996-09-19 2000-04-04 Roth Werke Gmbh Receptáculo para pallets
DK0916592T3 (da) * 1997-11-04 2002-01-28 Royal Packaging Industry Van L Pallecontainer med gitterbærestruktur
DE10002610B4 (de) 2000-01-22 2004-07-08 Sotralentz S.A. Container für Flüssigkeiten und fließfähige Produkte
IL153018A0 (en) * 2000-05-25 2003-06-24 Mauser Werke Gmbh & Co Kg Pallet container
DE20121462U1 (de) * 2000-10-26 2002-09-19 Mauser-Werke GmbH & Co. KG, 50321 Brühl Palettencontainer
DK1343703T3 (da) * 2000-11-23 2007-10-29 Mauser Werke Gmbh Pallecontainer
WO2004039691A1 (en) * 2002-11-01 2004-05-13 Tri Jonk Consultancy B.V. Pallet container
DE10301517B3 (de) * 2003-01-17 2004-03-11 Protechna S.A. Transport- und Lagerbehälter für Flüssigkeiten
DE502004000779D1 (de) * 2003-04-25 2006-07-27 Mauser Werke Gmbh & Co Kg Palettencontainer
WO2010037546A1 (de) * 2008-10-02 2010-04-08 Mauser-Werke Gmbh Palettencontainer
EP2301860B1 (en) 2009-09-29 2013-05-29 Greif International Holding BV. Pallet container for liquids
DE102011013192A1 (de) 2011-03-05 2012-09-06 Dietmar Przytulla Palettenbehälter
DE102011087927B4 (de) * 2011-12-07 2018-06-21 Protechna S.A. Transport- und Lagerbehälter für Flüssigkeiten
DE202012001726U1 (de) * 2012-02-20 2012-06-14 Dietmar Przytulla Palettenbehälter
DE102013205688A1 (de) * 2013-03-28 2014-10-02 Protechna S.A. Innenbehälter aus Kunststoff sowie Transport- und Lagerbehälter für Flüssigkeiten mit einem derartigen Innenbehälter

Also Published As

Publication number Publication date
IL271909A (en) 2020-02-27
ES2898257T3 (es) 2022-03-04
IL271909B2 (en) 2023-04-01
RU2020106570A (ru) 2021-08-13
SG11202000302QA (en) 2020-02-27
AU2018299640B2 (en) 2024-08-01
AU2018299640A1 (en) 2020-02-27
JP7155232B2 (ja) 2022-10-18
KR20200031131A (ko) 2020-03-23
HUE056478T2 (hu) 2022-02-28
CN110869290B (zh) 2024-08-16
HRP20211832T1 (hr) 2022-03-04
IL271909B (en) 2022-12-01
CA3069605A1 (en) 2019-01-17
DE102017006653B4 (de) 2023-10-26
CN110869290A (zh) 2020-03-06
BR112020000587B1 (pt) 2023-04-18
DE102017006653A1 (de) 2019-01-17
WO2019011468A1 (de) 2019-01-17
ZA202000563B (en) 2022-07-27
RU2020106570A3 (https=) 2021-10-26
PL3652088T3 (pl) 2022-01-10
US11208250B2 (en) 2021-12-28
EP3652088A1 (de) 2020-05-20
MY201434A (en) 2024-02-21
JP2020527516A (ja) 2020-09-10
BR112020000587A2 (pt) 2020-07-14
US20200165048A1 (en) 2020-05-28
PT3652088T (pt) 2021-11-18
RU2762921C2 (ru) 2021-12-23

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