EP2767490B1 - Réservoir en plastique - Google Patents

Réservoir en plastique Download PDF

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Publication number
EP2767490B1
EP2767490B1 EP13155473.5A EP13155473A EP2767490B1 EP 2767490 B1 EP2767490 B1 EP 2767490B1 EP 13155473 A EP13155473 A EP 13155473A EP 2767490 B1 EP2767490 B1 EP 2767490B1
Authority
EP
European Patent Office
Prior art keywords
tank
stiffening
recess
recesses
load bearing
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
EP13155473.5A
Other languages
German (de)
English (en)
Other versions
EP2767490A1 (fr
Inventor
Otto P. Graf
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.)
Otto Graf GmbH Kunststofferzeugnisse
Original Assignee
Otto Graf GmbH Kunststofferzeugnisse
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 Otto Graf GmbH Kunststofferzeugnisse filed Critical Otto Graf GmbH Kunststofferzeugnisse
Priority to PL13155473T priority Critical patent/PL2767490T3/pl
Priority to ES13155473T priority patent/ES2530454T3/es
Priority to EP13155473.5A priority patent/EP2767490B1/fr
Publication of EP2767490A1 publication Critical patent/EP2767490A1/fr
Application granted granted Critical
Publication of EP2767490B1 publication Critical patent/EP2767490B1/fr
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
    • B65D88/00—Large containers
    • B65D88/76—Large containers for use underground

Definitions

  • the invention relates to a tank according to the preamble of claim 1.
  • the passage is usually filled after insertion of the tank into the excavation with soil, gravel or other filler, for which, if necessary, a tamper or vibrator is used to compress the filler as a further mounting device.
  • the recesses increase the structural strength of the tank against both internal pressure and external or ground pressure.
  • the filling material in the passage also improves the buckling resistance in the recesses.
  • the introduction and compression of the filler means additional work and some skill, also harbors the risk that lack of insight cavities may remain or the filler material subsequently sets and forms cavities in which the outer wall of the tank is not locally backfilled.
  • a known tank form the aligned, emanating from the bottom and the top recesses each one over the entire chamber continuous passage with a lying approximately in the middle of the waist area.
  • the passage can be filled with cementitious material or gravel. If necessary, reinforcing bars are embedded.
  • a concrete cast cap that fills the depression to the waist area. The production of the concrete cap, such as the reinforcing iron structures to fill the passage, is time consuming and labor intensive.
  • US 2002/0153380 A1 and US 2004/0011786 A1 are plastic tanks, also for ground installation, known to contain the stiffening of the top to the bottom freely continuous passages, which are integrally formed with the outer wall, and when filling the tank in the pit with filler material can be filled.
  • the tank is a monolithic rotational molding.
  • WO 2010/031117 A1 known plastic tank which may be rotationally molded, contains the stiffening tube structures passing through the chamber which define continuous channels and each contain a lost mold core of the production mold, eg an aluminum pipe, in a deformed state.
  • the passages are often filled with filler material in the installed state of the tank.
  • US Pat. No. 4,609,106 is a blow-molded plastic container in a monolithic construction known, the outer wall of two oppositely inserted mandrels is deformed into local frustoconical depressions which abut each other with their bottom walls, are welded together, and have openings in the outer wall.
  • the recess from the underside can not be reliably filled with filler material when installing such a tank.
  • the outgoing from the top recess can be filled from top to bottom wall with filler.
  • the fact that at least any well coming from the bottom can not be properly filled results in the entire earth and traffic load acting on the tank and not being dumped into the ground, but through the outside wall itself, even in the bottom well , must be recorded.
  • the internal pressure in the filled or partially filled tank acts on the lower wells and tends to indulge them undesirable or to produce deformations, which can lead to cracking after a certain aging of the plastic.
  • the invention has for its object to provide a tank of the type mentioned, in which deformation-induced late damage to the tank regardless of its design for the end user or fitter with increased comfort and cost and with easy installation are excluded.
  • the plastic molded part as a load-receiving element fills out at least the depression extending from the underside of the tank and is resistant to deformation, stress peaks and deformations are excluded in the depression, which could lead to a later formation of cracks, since the outer wall is also in the region of the recess on the plastic. Molded part is supported. The molded part is fitted to a foundation (in free installation) prior to placing the tank in the excavation pit or before seating and is seated relatively firmly in the recess before it is secured by either weight or earth pressure in the recess. He can even be fitted with the manufacturer.
  • the molded part can be manufactured as an accessory of the tank and supplied in sufficient or desired number or procured separately, and is used in accordance with regulations, regardless of the manufacturing process of the tank, its safety against unwanted deformation and cracking.
  • the load-receiving element is a, preferably hollow, casting, rotating, injection molding or blow molding of plastic.
  • the molded part is inexpensive, easy to install and permanently fulfills its purpose. He is so fit into the depression that he at least substantially the depression fits accurately and supports, or at least a predetermined depth section of the recess in which deformations and cracks are to be feared.
  • the molded part is at least securely positioned in the recess with a press fit.
  • This press fit results z. B. from the vote of the outer shape of the load-receiving element on the inner shape of the recess or a predetermined depth portion of the recess and ensures that when raised tank molding does not fall out while the tank is lowered into the pit or on the foundation.
  • a molded part is fitted at least into the recess extending from the underside. The molded part can be fitted during installation of the tank on site, or if necessary, already established by the manufacturer of the tank and then permanently secured in the recess.
  • the respective load-receiving element A may have outer sides 10 which are closed on all sides, or may be filled with filling material 11, and is a separately cast, rotational, injection-molded or blow-molded plastic molded part from the tank T. Its outer shape is the inner shape and optionally-size of the respective recess 4a, 4b of the tank T adjusted.
  • Fig. 4 shows remain after installation of the tank T of Fig. 3 into the ground 2, the lower cavities 5b largely empty, so that there, as indicated at 15, traffic loads or the internal pressure or the earth pressure can lead to deformation, which can occur with increasing aging of the tank at 14 cracking.
  • the upper cavities 5a are optionally filled with soil 2a or other filling material which may be compacted to stabilize at least the recesses 4a.
  • Fig. 5 at the tank of Fig. 3 at least each open at the bottom U cavity 5b in the recess 4b filled with a mounting device V in the form of a load-receiving element A.
  • the load-receiving element A is designed similarly as described Fig. 2 explained, that is made separately stable from the tank T and fitted into the recess 4b, such that the recess 4b is at least substantially filled, or at least a predetermined depth portion of the recess 4b, starting from the lower opening 13, filled.
  • the outer shape of the load-receiving element A also corresponds here to the inner shape of the recess 4b.
  • the load-bearing element A can be positioned with a press fit, and is either fitted on site during installation of the tank or already fitted by the manufacturer and optionally permanently fixed (welding, stapling, gluing, latching, etc.). Thanks to the fitted load-bearing element A, the wall in the region of the depression 4b better withstand forces exerted by the internal pressure and / or traffic loads in the direction of the arrow 16 or is freed from forces acting in the direction of the arrow 17, for example on the ground. Expediently, in particular, the wall of the depression, for example 4 b, is stabilized by the load-bearing element used.
  • each lower-side recess 4b filled with a load-receiving element A.
  • the upper recesses 4a may be filled with soil 2a or filler. However, it is also possible, as in Fig. 5 indicated on the left, also in each or at least one upper recess 4a to insert a suitable load-receiving element A.
  • the Fig. 6 and Fig. 7 show perspective views of such usable as mounting devices V load-bearing elements A.
  • the respective recess 4a, 4b which usually tapered inwardly with a Entformungsschräge either truncated or truncated pyramid is also the outer shape of the respective load-receiving element A in the 6 and 7 adapted to the inner shape of the recess designed as a truncated cone or truncated pyramid.
  • the load-bearing elements A are on all sides closed (top wall 18, bottom wall 20, shell wall 19 at the truncated cone, top wall 18 ', shell walls 19', bottom wall 20 'at the truncated pyramid in Fig. 7 ), although certainly at least one opening could be formed, which is not detrimental to the load-bearing properties of the load-bearing element.
  • the load-bearing element A can be welded to the tank T, adhered thereto or adhesively bonded.
  • FIG. 8 shows in perspective a load-bearing element block B (integral or joined) as a mounting device V, for example, for a tank (not shown), in its outer wall, for example, starting from the bottom several (here four, for example) closely adjacent and trimmed recesses 4b, 4a has ,
  • the block B comprises, as it were, four load-bearing elements A, which are connected in connecting regions 21 and can have two differently shaped upper sides 18, 18 ', eg corresponding to the depressions of the tank. Between the bottom walls 12 of the upper sides 18, 18 'are stiffening channel-shaped transitions 22, optionally formed even with molded ribs or webs 23. It is important that the inserted block B with its outer side 10 at least the walls in the wells of the tank stably supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Sewage (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (4)

  1. Réservoir (T) en matière plastique, en particulier pour l'utilisation d'eau de pluie, avec au moins une paroi externe (3) qui délimite une chambre (K) et avec des renfoncements de raidissement (4a, 4b) se faisant face dans la paroi externe (3), formés avec un angle de démoulage, qui s'étendent chacun depuis une ouverture libre (13) dans une face supérieure et inférieure (O, U) du réservoir (T) côté assemblage vers une zone de ceinture, dans lequel au moins un renfoncement (4b, 4a) comporte un élément de reprise de charge (A) approprié résistant à la déformation qui présente une forme externe adaptée à la forme interne du renfoncement (4a, 4b), caractérisé en ce que les renfoncements (4a, 4b) sont de forme conique ou pyramidale et constituent soit un passage (5) qui traverse entièrement la chambre (K), soit des cavités (5a, 5b) séparées par des parois de fond (12) dans la zone de ceinture, et en ce qu'une préforme fabriquée en matière plastique par moulage, injection ou soufflage est utilisée au moins dans le renfoncement (4b) sortant de la face inférieure comme élément de reprise de charge (A), ladite préforme occupant le renfoncement (4a, 4b) jusqu'à la zone de ceinture ou dans une section du renfoncement de profondeur prédéterminée, et étant fixée, pour au moins éviter une chute, par serrage ou par une fixation durable via soudage par cordon, soudage par points, collage ou encastrement.
  2. Réservoir selon la revendication 1, caractérisé en ce que la préforme qui constitue l'élément de reprise de charge (A) est creuse, partiellement pleine ou entièrement pleine.
  3. Réservoir selon la revendication 1, caractérisé en ce qu'une préforme en matière plastique est insérée comme élément de reprise de charge (A) dans au moins un renfoncement (4a) partant de la face supérieure (O).
  4. Réservoir selon au moins l'une des revendications précédentes, caractérisé en ce que le réservoir (T) comporte dans la paroi externe (3) une pluralité de renfoncements (4a, 4b) adjacents et entrecoupés, et en ce que les éléments de reprise de charge (A) insérés dans les renfoncements (4a, 4b) constituent un bloc d'éléments de reprise de charge (B) d'une seule pièce ou assemblé.
EP13155473.5A 2013-02-15 2013-02-15 Réservoir en plastique Active EP2767490B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL13155473T PL2767490T3 (pl) 2013-02-15 2013-02-15 Zbiornik z tworzywa sztucznego
ES13155473T ES2530454T3 (es) 2013-02-15 2013-02-15 Depósito de plástico
EP13155473.5A EP2767490B1 (fr) 2013-02-15 2013-02-15 Réservoir en plastique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13155473.5A EP2767490B1 (fr) 2013-02-15 2013-02-15 Réservoir en plastique

Publications (2)

Publication Number Publication Date
EP2767490A1 EP2767490A1 (fr) 2014-08-20
EP2767490B1 true EP2767490B1 (fr) 2015-01-21

Family

ID=47748437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13155473.5A Active EP2767490B1 (fr) 2013-02-15 2013-02-15 Réservoir en plastique

Country Status (3)

Country Link
EP (1) EP2767490B1 (fr)
ES (1) ES2530454T3 (fr)
PL (1) PL2767490T3 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR50697E (fr) * 1939-07-19 1941-02-20 Forges Ateliers Const Electr Réservoir métallique souterrain
FR2470740A1 (fr) * 1979-12-03 1981-06-12 Neveux Francois Cuve destinee a etre enterree
DE8431098U1 (de) 1983-11-22 1985-04-11 Gentili, Vittorio, Bologna Tragbarer, kanisterfoermiger behaelter mit palettierbarer umhuellung
US5785459A (en) * 1996-07-17 1998-07-28 Swinimer; Kirk Prefabricated form for molding a footing of a settable structural material
JP3349473B2 (ja) * 1998-05-20 2002-11-25 吉川建設株式会社 耐震貯水構造体
US20020153380A1 (en) 2001-04-20 2002-10-24 Rochester Rotational Molding, Inc. Apparatus and method for manufacturing a tank
US20040011786A1 (en) 2001-04-20 2004-01-22 Wade Wayne Allen Thermoplastic molded tank
US20060285927A1 (en) * 2005-06-15 2006-12-21 Linpac Rotational Mouldings Pty. Ltd. Subterranean storage vessels and installation thereof
AU2007352883B2 (en) * 2007-04-27 2012-07-26 Manfred Roth Plastic tank
EP2163694A3 (fr) 2008-09-16 2013-01-16 Otto Graf GmbH Kunststofferzeugnisse Réservoir et son procédé de construction

Also Published As

Publication number Publication date
EP2767490A1 (fr) 2014-08-20
ES2530454T3 (es) 2015-03-03
PL2767490T3 (pl) 2015-06-30

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