EP0730552B1 - Container having an interlocking cover arrangement - Google Patents

Container having an interlocking cover arrangement Download PDF

Info

Publication number: EP0730552B1
Authority: EP; European Patent Office
Prior art keywords: cover member; side walls; container; tray; wall
Prior art date: 1993-11-29
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

EP95903073A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0730552A1 (en

Inventor

Tony Noren

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.)

Individual

Original Assignee

Individual

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.)

1993-11-29

Filing date

1994-11-24

Publication date

1998-06-10

1994-11-24 Application filed by Individual filed Critical Individual

1996-09-11 Publication of EP0730552A1 publication Critical patent/EP0730552A1/en

1998-06-10 Application granted granted Critical

1998-06-10 Publication of EP0730552B1 publication Critical patent/EP0730552B1/en

2014-11-24 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

210000002105 tongue Anatomy 0.000 claims description 18
239000000463 material Substances 0.000 claims description 7
239000011087 paperboard Substances 0.000 claims description 7
239000000853 adhesive Substances 0.000 claims description 4
230000001070 adhesive effect Effects 0.000 claims description 4
230000013011 mating Effects 0.000 claims description 2
238000004026 adhesive bonding Methods 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000012856 packing Methods 0.000 description 1

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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/64—Lids
- B65D5/68—Telescope flanged lids
- B65D5/685—Telescope flanged lids having an inwardly or upwardly extending tab on the lid side wall cooperating with a tab on, or an opening in, the container side wall

Definitions

This invention relates to a container, especially a food container, having an interlocking cover arrangement, the container having a tray member including a plane bottom wall and four tray member side walls upstanding from the latter to form a box-like structure open at the top, the tray member side walls each including an outer flange element, the container also has a cover member including a plane top wall and four cover member side walls depending from said top wall to form a box-like structure open at the bottom, each of the opposite side walls of said cover member side walls having at least one locking tongue which is situated on the inside of its respective side wall and which is inwardly biassed, each locking tongue presenting an upwardly facing abutment for engagement with a corresponding downwardly facing abutment on said tray member.
the object of the present invention is, therefore, to provide a container of the aforementioned kind, which provides a stronger and safer interlocking between the tray and cover members. This object will be achieved by a container according to the invention and having the characteristics set forth in Claim 1.
the outer flange elements consist of brims projecting outwardly from the periphery of the tray member in a direction substantially parallel to the plane of the bottom wall of the tray member, said brims each having a bottom surface forming said downwardly facing abutment, and said brims each having a top surface forming an abutment surface for engagement with said top wall of the cover member, an opposed pair of the brims having apertures for mating engagement with each of said locking tongues by snap-action.
Fig. 1 is a perspective view of a tray member according to the invention.
Figs. 2 - 5 illustrate four sequential stages for the manufacture of a tray member according to the invention.
Figs. 6 - 7 illustrate in sequence two operational stages in interlocking a tray member and a cover member according to the invention.
Fig. 1 shows a rectangular tray member 1 of a plane, stiff material, for instance a paperboard material.
the tray member has a plane bottom wall 1a and four side walls 1b-e up-standing from the bottom wall 1a to form a box-like structure open at the top.
Each tray member side wall 1b-e has an outer flange in the form of a brim 2, 3, 4, and 5, respectively, projecting outwardly from the periphery of the tray member in a direction substantially parallel to the plane of the bottom wall 1a of the tray member.
the tray member may be either right-angled or conical in order to enable a piling of several tray members into one another.
the tray member may also be foldable, for instance of the type described in Swedish patent specification Number 8405157-2.
Each of the two opposed brim portions 2 and 4 see Fig. 1, has two through, oblique apertures 6, 7 and 8, 9, respectively, which improve the interlocking function, as will be explained below.
Fig. 2 shows a cut out plane blank of a plastic treated paperboard or the like, which, after folding and glueing, will form the cover member illustrated in Figs. 3 - 5.
the cover member has, see Fig. 2, a plane top wall 10 and four rectangular cover member side walls 11 - 14 foldable downwards at approximately right angles via fold lines 15 - 18 such that the four side walls 11 - 14 will depend from the top wall 10 to form a box-like structure open at the bottom.
the side walls 11 - 14 have been cut out in a manner such that the box-like structure will converge conically downwardly.
the two longer side walls 12 and 14 have, at their ends, an extension portion 12a, 12b and 14a, 14b, respectively, which can, via fold lines 19 - 22, be folded inwardly at approximately right angles to the longer side walls 12 and 14, respectively, and be fastened, for instance by adhesive 23 - 26, to an adjacent short side wall 11 and 13, respectively, see Fig. 3.
Each end of the short side walls 11 and 13 has a fold line 27 - 30, respectively, extending in about 45 degrees from a respective one of the corners of the top wall 10.
These fold lines 27 - 30 enable an infolding of the short side walls 11 and 13 towards the top wall 10, see Fig. 4, to permit the cover member to be collapsed into a flattened condition, see Fig. 5, which condition the cover member will have during transport prior to packing of the tray member.
the adhesive 23 - 26 has been applied only to a triangular area, see Fig. 2, at the end of each short side wall 11 and 13, which area is located outside the respective fold line 27 - 30, thus causing only a corresponding triangular area of the extension portions 12a-b, 14a-b, to be glued to an associated one of short side walls 11 and 13.
the outermost area of the extension portions 12a-b and 14a-b, respectively will remain free from the adhesive and will not be glued to its associated short side wall 11 and 13, respectively.
This will accomplish the special effect that the non-glued areas of the extension portions 12a-b and 14a-b, respectively, will move relative to its associate short side wall, when this is being infolded towards the top wall 10, as is seen in Fig. 4.
the nonglued areas of the extension portions 12a-b and 14a-b, respectively, can, thereby, be used as a kind of locking tongues, which can be said to be indirectly biassed by said inherent springiness of the paperboard material of the short side walls of the tray member.
the function of these locking tongues will be apparent from the description below by reference to Figs. 6 and 7.
Fig. 6 is a perspective view, as seen obliquely from beneath, of a cover member according to the invention
Fig. 7 is a perspective view, as seen obliquely from beneath, of a tray member 1 with a cover member telescoped over the tray member.
the effective locking depth provided by the apertures 6 - 9 is in fact greater than the thickness of the brims 2 - 5. Namely, in practice, the brims 2 - 5 will not be oriented exactly in parallel with the top wall 10 of the cover member, but will incline a few degrees, such that the locking tongues, when moving through the apertures, will move a certain distance past the apertures, which will cause a still stronger interlocking between the tray and cover members.
the length of the extension portions 12a-b and 14a-b and the configuration, location and angle of the apertures 6 - 9 is dimensioned such that the non-glued areas of the extension portions (i.e. the "locking tongues") or their heels or hooks 33 - 36, if such are present, will obtain the same direction and location as the apertures in order to ensure that the locking tongues will get an optimal engagement with its associated aperture.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Cartons (AREA)
Closures For Containers (AREA)
Laying Of Electric Cables Or Lines Outside (AREA)

EP95903073A 1993-11-29 1994-11-24 Container having an interlocking cover arrangement Expired - Lifetime EP0730552B1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
SE9303949		1993-11-29
SE9303949A SE507781C2 (sv)	1993-11-29	1993-11-29	Med låsbart lock försett tråg
PCT/SE1994/001129 WO1995014615A1 (en)	1993-11-29	1994-11-24	Container having an interlocking cover arrangement

Publications (2)

Publication Number	Publication Date
EP0730552A1 EP0730552A1 (en)	1996-09-11
EP0730552B1 true EP0730552B1 (en)	1998-06-10

Family

ID=20391916

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95903073A Expired - Lifetime EP0730552B1 (en)	1993-11-29	1994-11-24	Container having an interlocking cover arrangement

Country Status (6)

Country	Link
EP (1)	EP0730552B1 (no)
DE (1)	DE69411033T2 (no)
DK (1)	DK0730552T3 (no)
NO (1)	NO308163B1 (no)
SE (1)	SE507781C2 (no)
WO (1)	WO1995014615A1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE202007012019U1 (de)	2007-08-28	2008-02-21	Penzkofer, Klaus	Abgassystem für Kraftfahrzeuge mit Verbrennungsmotoren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2961144A (en) *	1958-07-21	1960-11-22	American Box Board Co	Pilfer-proof box
SE395865B (sv) *	1975-04-03	1977-08-29	Sprinter Pack Ab	Kartongtrag med lock
US4114798A (en) *	1977-10-28	1978-09-19	Container Corporation Of America	Interlocking cover and tray
US4531669A (en) *	1983-07-06	1985-07-30	Westvaco Corporation	Interlock between telescoping cover and tray
FR2564428B3 (fr) *	1984-05-16	1986-05-16	Sauterot Drac	Boite en carton, de forme parallelepipedique pouvant etre stockee a plat
DE3828294A1 (de) *	1987-08-20	1989-07-06	Orbke Ilse	Deckel aus karton oder aehnlichem material zum allseitigen verschliessen von menueschalen oder aehnliche behaeltnisse

1993
- 1993-11-29 SE SE9303949A patent/SE507781C2/sv not_active IP Right Cessation
1994
- 1994-11-24 WO PCT/SE1994/001129 patent/WO1995014615A1/en not_active Ceased
- 1994-11-24 EP EP95903073A patent/EP0730552B1/en not_active Expired - Lifetime
- 1994-11-24 DE DE69411033T patent/DE69411033T2/de not_active Expired - Fee Related
- 1994-11-24 DK DK95903073T patent/DK0730552T3/da active
1996
- 1996-05-24 NO NO962140A patent/NO308163B1/no unknown

Also Published As

Publication number	Publication date
WO1995014615A1 (en)	1995-06-01
SE9303949D0 (sv)	1993-11-29
DE69411033D1 (de)	1998-07-16
DE69411033T2 (de)	1998-11-19
NO308163B1 (no)	2000-08-07
SE507781C2 (sv)	1998-07-13
EP0730552A1 (en)	1996-09-11
DK0730552T3 (da)	1998-10-12
NO962140L (no)	1996-05-24
NO962140D0 (no)	1996-05-24
SE9303949L (sv)	1995-05-30

Legal Events

Date	Code	Title	Description
1996-07-26	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
1996-09-11	17P	Request for examination filed	Effective date: 19960618
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1997-05-14	17Q	First examination report despatched	Effective date: 19970402
1997-08-15	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-12-13	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-12-13	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-03-09	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-04-24	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1998-06-10	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE DK FR GB IT NL
1998-06-10	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 19980610
1998-07-10	ET	Fr: translation filed
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1999-04-16	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1999-06-02	26N	No opposition filed
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