EP0557575A2 - Barquette - Google Patents

Barquette Download PDF

Info

Publication number: EP0557575A2
Authority: EP; European Patent Office
Prior art keywords: punnet; stiffening ribs; sidewalls; steps; corner
Prior art date: 1992-02-26
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

EP92114582A

Other languages

German (de)

English (en)

Other versions

EP0557575A3 (en

EP0557575B1 (fr

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.)

1992-02-26

Filing date

1992-08-27

Publication date

1993-09-01

1992-08-27 Application filed by Nespak SpA Generale Per L'imballaggio Soc filed Critical Nespak SpA Generale Per L'imballaggio Soc

1993-09-01 Publication of EP0557575A2 publication Critical patent/EP0557575A2/fr

1994-07-06 Publication of EP0557575A3 publication Critical patent/EP0557575A3/en

1997-04-16 Application granted granted Critical

1997-04-16 Publication of EP0557575B1 publication Critical patent/EP0557575B1/fr

2012-08-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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 articles or other types of articles, which is specifically made of plastics material.
the object of the invention is to provide a punnet of plastics material, having greater stiffness and strength against any punnet-deforming pressure on its bottom area, by using very simple and low-cost manufacturing means and material.
the invention attains this object by providing a plastics material punnet formed with a plurality of side-by-side stiffening ribs, each extending transversely around the connection corner between the sidewalls and the bottom of the punnet, between two steps, one of which is at the peripheral edge of the bottom wall and the other at the lower edge of the sidewalls.
the assembly of ribs and steps entails the division of the corner area into a plurality of successive segments, each of which is defined by two adjacent ribs at the ends and by the two steps at the edges of the bottom and the sidewalls.
connection corner is rounded and said steps extend continuously along the peripheral edge of the bottom and along the sidewalls, respectively, of the punnet.
Said ribs and steps are integral with the punnet, and particularly in case of punnets made by molding a foil of plastics material such as, for example, the so-called PVC, they are formed directly during the punnet molding operation, thus avoiding any further expenditure on the used material.
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)

EP92114582A 1992-02-26 1992-08-27 Barquette Expired - Lifetime EP0557575B1 (fr)

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 true EP0557575A2 (fr)	1993-09-01
EP0557575A3 EP0557575A3 (en)	1994-07-06
EP0557575B1 EP0557575B1 (fr)	1997-04-16

Family

ID=11354193

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92114582A Expired - Lifetime EP0557575B1 (fr)	1992-02-26	1992-08-27	Barquette

Country Status (6)

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

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

1992
- 1992-02-26 IT IT92GE000012U patent/IT228543Y1/it active IP Right Grant
- 1992-08-27 DE DE69219106T patent/DE69219106D1/de not_active Expired - Lifetime
- 1992-08-27 EP EP92114582A patent/EP0557575B1/fr not_active Expired - Lifetime
- 1992-08-27 ES ES92114582T patent/ES2044809T3/es not_active Expired - Lifetime
- 1992-08-27 AT AT92114582T patent/ATE151709T1/de not_active IP Right Cessation
- 1992-12-22 CA CA002086083A patent/CA2086083C/fr not_active Expired - Fee Related

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
EP0557575B1 (fr)	1997-04-16
ITGE920012V0 (it)	1992-02-26
ATE151709T1 (de)	1997-05-15
CA2086083C (fr)	1996-12-17
ES2044809T3 (es)	1997-08-01
DE69219106D1 (de)	1997-05-22
CA2086083A1 (fr)	1993-08-27

Legal Events

Date	Code	Title	Description
1993-07-16	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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