EP0557575B1 - Trogförmiger Behälter - Google Patents

Trogförmiger Behälter Download PDF

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Publication number
EP0557575B1
EP0557575B1 EP92114582A EP92114582A EP0557575B1 EP 0557575 B1 EP0557575 B1 EP 0557575B1 EP 92114582 A EP92114582 A EP 92114582A EP 92114582 A EP92114582 A EP 92114582A EP 0557575 B1 EP0557575 B1 EP 0557575B1
Authority
EP
European Patent Office
Prior art keywords
punnet
sidewalls
stiffening ribs
stiffening
steps
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.)
Expired - Lifetime
Application number
EP92114582A
Other languages
English (en)
French (fr)
Other versions
EP0557575A3 (en
EP0557575A2 (de
Inventor
Mauro Salini
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.)
Nespak SpA Generale Per L'imballaggio Soc
Original Assignee
Nespak SpA Generale Per L'imballaggio Soc
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 Nespak SpA Generale Per L'imballaggio Soc filed Critical Nespak SpA Generale Per L'imballaggio Soc
Publication of EP0557575A2 publication Critical patent/EP0557575A2/de
Publication of EP0557575A3 publication Critical patent/EP0557575A3/en
Application granted granted Critical
Publication of EP0557575B1 publication Critical patent/EP0557575B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/44—Corrugations

Definitions

  • the invention relates to a punnet, for example for packaging fruit and vegetable products, which is made of plastics material and is provided on its sidewalls with a plurality of side-by-side stiffening ribs spaced apart from each other and extending around the rounded corner which connects the sidewalls to the bottom of the punnet, while each stiffening is provided with a step in the lower part of the sidewalls and is connected to a step which is provided at the peripheral edge of the bottom and extends continuously around the bottom.
  • a punnet of this kind is known from the document EP-A-0484709, a document in accordance with Art. 54(3) EPC, which discloses the most relevant prior art.
  • steps are provided in each stiffening rib, while the sidewalls of the punnet are deprived of steps and are smoothly connected to the rounded corner between them and the bottom.
  • the object of the invention is to provide a punnet of the kind initially described , having greater stiffness and strenght against any punnet-deforming pressure on its bottom area, by using very simple and low-cost manufacturing means.
  • the invention attains this object by providing a punnet according to the preamble of claim 1 and characterized in that the step in each stiffening rib provided at the lower edge of the sidewalls extends as well in the sidewalls continuously around the punnet, thus dividing the connection corner between the bottom and the sidewalls into a plurality of successive segments which are defined by two stiffening ribs at the ends thereof and by two steps at the top and bottom sides, respectively.
  • the corner connecting the bottom and sidewalls of the punnet is thus stiffened considerably, imparting the punnet a remarkable strength against deformation pressures. This, advantageously, avoids any possibility of damage to the products arranged in the punnets, for example, when they are either handled or transported.
  • a punnet indicated generally at 1 and made, specifically, by molding a foil of plastics material such as the so-called PVC.
  • the sidewalls 2 merge into the bottom 3 of the punnet 1 through a rounded connection corner 4.
  • the connection corner 4 is united to both the sidewalls 2 and bottom 3 and forms therewith outwardly-protruding steps 5,6.
  • the steps 5,6 extend continuously along the entire peripheral edge of the bottom 3 and sidewalls 2 in endless configuration.
  • a plurality of side-by-side stiffening ribs 7 extend from the step 5 at the lower edge of the sidewalls 2 to the other step 6 at the bottom 3 round across the connection corner 4.
  • said stiffening ribs 7 are equally spaced apart and divide the area of the connection corner 4 into a plurality of successive segments 104 which are defined by two successive stiffening ribs 7 at the ends thereof and by the steps 5 and 6 at the top and bottom sides, respectively.
  • the punnet is made by molding a foil of plastics material
  • the steps 5,6 and stiffening ribs 7 may be made during the same molding operation as the punnet 1 by deforming accordingly the sidewalls 2, bottom 3 and connection corner 4, so that no additional material is required to form them.
  • each stiffening rib may comprise an extension 107 over the sidewalls 2.
  • the extensions 107 may become progressively larger upwards to assume an upturned triangular configuration.
  • the endless step 5 at the lower edge of the sidewalls may also concern the extensions 107 of the stiffening ribs 7, thus contributing to increase the stiffening action.
  • the stiffening ribs 7 are of a certain width and of any cross section, such as either a constant, rectangular, trapezoidal or rounded cross section. Their outer sides may extend to a slightly lower level than that of the outer sides of the steps 5,6 so that they join said steps 5,6 (specifically the step 6 at the bottom 3) to form a small step 10.
  • the step 6 at the sides of the bottom may be formed by the peripheral outer sides of a peripheral rim 8 protruding downwards from the bottom 3, thus forming an additional step 9 opposing the deformation of the punnet at the inner sides of the peripheral rim.
  • the longitudinal portions of the peripheral rim may be connected to each other by transverse ribs 108 which further improve the stiffening action on the bottom of the punnet.
  • the stiffening ribs 7 at the corner 4 may comprise extensions on the punnet bottom 3 which connect opposed ribs 7 two by two either of only two sides, thus forming, for example, the stiffening ribs 108, or of all the sides, thus forming a stiffening grating for the bottom 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Air Bags (AREA)
  • Wrappers (AREA)
  • External Artificial Organs (AREA)
  • Stackable Containers (AREA)

Claims (3)

  1. Ein trogförmiger Behälter, hergestellt aus Plastikmaterial und an seinen Seitenwänden (2) versehen mit einer Vielzahl von Seite an Seite liegenden versteifenden Rippen (7), jeweils voneinander beabstandet und sich erstreckend um die gerundete Kante (4), die die Seitenwände (2) mit dem Boden (3) des trogförmigen Behälters verbindet, wobei jede der versteifenden Rippen (7) mit einer Stufe in dem unteren Bereich der Seitenwände (2) versehen ist und mit einer Stufe (5) verbunden ist, die an der umlaufenden Kante des Bodens (3) vorgesehen ist und kontinuierlich entlang des Bodens vorsteht, dadurch gekennzeichnet, daß die Stufe in jeder versteifenden Rippe (7), die an der unteren Kante der Seitenwände (2) vorgesehen ist, sich ebenso in den Seitenwänden rings um den trogförmigen Behälter herum erstreckt, somit trennend die verbindende Kante (4) zwischen dem Boden und den Seitenwänden in eine Vielzahl von aufeinanderfolgenden Segmenten (104), die durch zwei versteifende Rippen (7) an den Enden davon und aus Zwei Stufen (5, 6) an der Oberseite bzw. der Unterseite definiert werden.
  2. Trogförmiger Behälter gemäß Anspruch 1, dadurch gekennzeichnet, daß die versteifenden Rippen (7) um ein geringeres Maß als die Stufen (6) an der äußeren Kante des Bodens (3) hervorstehen und sich an diese Stufe (6) mit einem kleinen Abstand in der Höhe (10) anschließen.
  3. Trogförmiger Behälter gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stufe (6) an dem Boden (3) durch einen umlaufenden Rand gebildet ist, der unterseitig des Bodens (3) hervorsteht und an der Innenseite davon eine weitere konzentrische Stufe (9) bildet, und daß die gegenüberliegenden Seiten des umlaufenden Randes (8) durch querversteifende Rippen (108) verbunden sind.
EP92114582A 1992-02-26 1992-08-27 Trogförmiger Behälter Expired - Lifetime EP0557575B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT92GE000012U IT228543Y1 (it) 1992-02-26 1992-02-26 Cestella
ITGE920012U 1992-02-26

Publications (3)

Publication Number Publication Date
EP0557575A2 EP0557575A2 (de) 1993-09-01
EP0557575A3 EP0557575A3 (en) 1994-07-06
EP0557575B1 true EP0557575B1 (de) 1997-04-16

Family

ID=11354193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92114582A Expired - Lifetime EP0557575B1 (de) 1992-02-26 1992-08-27 Trogförmiger Behälter

Country Status (6)

Country Link
EP (1) EP0557575B1 (de)
AT (1) ATE151709T1 (de)
CA (1) CA2086083C (de)
DE (1) DE69219106D1 (de)
ES (1) ES2044809T3 (de)
IT (1) IT228543Y1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI69803C (fi) * 1979-09-24 1986-05-26 Unilever Nv Kaerl
GB2200340A (en) * 1987-01-29 1988-08-03 Dolphin Packaging Materials Container for perishable goods
IT1221299B (it) * 1988-06-02 1990-06-27 I S A P Ind Specializzate Arti Vaschetta perfezionata particolarmente adatta per prodotti ortofrutticoli
US4909393A (en) * 1988-11-14 1990-03-20 Berwick Container Corp. Container reconfiguring system
IT222351Z2 (it) * 1990-11-09 1995-02-17 Nespak Spa Cestella

Also Published As

Publication number Publication date
ITGE920012U1 (it) 1993-08-26
IT228543Y1 (it) 1998-04-27
ES2044809T1 (es) 1994-01-16
EP0557575A3 (en) 1994-07-06
EP0557575A2 (de) 1993-09-01
ITGE920012V0 (it) 1992-02-26
ATE151709T1 (de) 1997-05-15
CA2086083C (en) 1996-12-17
ES2044809T3 (es) 1997-08-01
DE69219106D1 (de) 1997-05-22
CA2086083A1 (en) 1993-08-27

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