NO146424B - Beholder med lokk - Google Patents

Beholder med lokk Download PDF

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Publication number
NO146424B
NO146424B NO783696A NO783696A NO146424B NO 146424 B NO146424 B NO 146424B NO 783696 A NO783696 A NO 783696A NO 783696 A NO783696 A NO 783696A NO 146424 B NO146424 B NO 146424B
Authority
NO
Norway
Prior art keywords
container
lid
opening
mouth
annular
Prior art date
Application number
NO783696A
Other languages
English (en)
Other versions
NO783696L (no
NO146424C (no
Inventor
Ole Ingemann
Original Assignee
Haustrup Plastic As
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 Haustrup Plastic As filed Critical Haustrup Plastic As
Publication of NO783696L publication Critical patent/NO783696L/no
Publication of NO146424B publication Critical patent/NO146424B/no
Publication of NO146424C publication Critical patent/NO146424C/no

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D77/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10Container closures formed after filling
    • B65D77/20Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2052Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the container being weakened
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312Single flange to flange joints, the parts to be joined being rigid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0214Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/022Removable lids or covers without integral tamper element secured only by friction or gravity only on the inside, or a part turned to the inside, of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0202Removable lids or covers without integral tamper element
    • B65D43/0214Removable lids or covers without integral tamper element secured only by friction or gravity
    • B65D43/0222Removable lids or covers without integral tamper element secured only by friction or gravity only on the outside, or a part turned to the outside, of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D77/10Container closures formed after filling
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    • B65D77/2024Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068Means for reclosing the cover after its first opening
    • B65D77/2072Mechanical means
    • B65D77/2076Mechanical means provided by the cover itself
    • B65D77/208Mechanical means provided by the cover itself the cover having a cap-like or plug-like shape
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D77/2024Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068Means for reclosing the cover after its first opening
    • B65D77/2072Mechanical means
    • B65D77/2088Mechanical means attached to the cover
    • B65D77/2092Mechanical means attached to the cover the means being a part initially broken from the container
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D2401/00Tamper-indicating means
    • B65D2401/10Tearable part of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00231Overall construction of the lid made of several pieces
    • B65D2543/0024Overall construction of the lid made of several pieces two pieces, one forming at least the whole skirt, the other forming at least the whole upper part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
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    • B65D2543/00259Materials used
    • B65D2543/00296Plastic
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00509Cup
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    • B65D2543/00824Means for facilitating removing of the closure
    • B65D2543/00833Integral tabs, tongues, handles or similar
    • B65D2543/00842Integral tabs, tongues, handles or similar outside of the lid
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B65D2577/00Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10Container closures formed after filling
    • B65D2577/20Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075Lines of weakness or apertures
    • B65D2577/2083Lines of weakness or apertures in container flange

Description

Nærværende oppfinnelse vedrører en beholder med lokk av den
type hvor en åpnet beholder på nytt er lukkingsbar ved at lokket er utført med en fastklemmingsanordning. Videre ér lokket anordnet slik at det sammen.med beholderen danner en
tettende lukking. Den tettende lukkingen erholdes ved at lokket er utformet med et ringformet kantparti for samvirk-ning med et ringformét flateparti hos beholderens åpnings-kant. Ved fylt originallukket beholder er lokket festet mot
åpningskantens ringformede flateparti, f.eks. ved sveising "éller liming. I beholderen er det anordnet en ringformet forsvakning, hvor forsvakningen befinner seg nærmere beholderens lengdeakse enn det partiet som er festet til lokket. Ved åpningen av beholderen brytes forbindelsen i den ringformede forsvakningen, slik at lokket og de ved lokket fastsittende ringformede flatepartier og eventuelt også den øverste delen av det tidligere beholderlegemet fraskilles fra selve beholderen.
Aktuelle anvendelsesområder for beholdere av denne type er begerformede eller eskeformede innpakninger for melk, smør, magarin og lignende varer. Slike beholdere kan ha varierende høyde og form og kan f.eks. være runde, rektangulære eller ovale. Det foreligger et meget sterkt ønske: om å kunne sikre at beholder av ovenfor angitte type etter at disse er fylt og igjenlukket ikke kan åpnes helt eller delvis av u-vedkommende uten at dette merkes av den endelige forbrukeren av pakningsinnholdet. Spesielt ved beholdere med tynne vegg-, er av termoplast foreligger det vanskeligheter med den nå kjente teknikk og sikre dette, da det i slike konstruksjoner ikke er mulig å anbringe sikker plombering.
Problemene er løst når det gjelder beholdere for engangsbruk ved at åpningen ved slike beholdere dekkes av et folieformet lokk av f.eks. plast eller av plast-metall-compoundfolie, som legges og forsegles mot åpningskanten. Ved åpningen av slike fylte original-igjenlukkede beholdere rives lokkfolien av, hvilket utelukker en ny anvendelse av lokket for igjenlukking av beholderen.
En igjenlukkingsbar beholder er kjent fra US patent 3 048 299, som omfatter et lokk som har en periferisk vulst som snepper inn bak en innvendig vulst ved beholderåpningen. For å av-stedkomme en originallukking kreves et ytterligere element i form av en plastfilm, som sveises fast ved lokket og ved en bortrivbar munningskant hos beholderen. Sneppertorganene fin-nes allerede der -fra begynnelsen og er nødvendige for såvel originallukkingen som en gjentatt igjenlukking. Den ekstra plastfilmen vanskeliggjør tillukningsoperasjonen og fordyrer forpakningen.
I US patent 3 108 708 beskrives en beholder av et plastmateria-le med et lokk av en plastfilm, som uten anvendelse av forbindel-sesmidler varmforsegles mot en ytre del av en utadstående munningsflens hos beholderen. Flensen er forsynt med et øvre spor og et nedre spor, hvilke spor sammen danner et oppriv-ningsområde for beholderen. Ved åpningen gjenstår den ytre flensdelen ved lokket og danner et ytre kantparti på dette. Noen sikker fastholdning av lokket ved en gjentatt lukking av beholderen erholdes ikke med denne kjente konstruksjonen.
Videre er det fra US patent 1 719 581 kjent en boks med et lokk som er festet ved bokslegemet ved hjelp av en dobbel-forsegling, og som har en indre sylindrisk side som er i friksjonsinngrep med innsiden til bokslegemet. Beholderlegemet er forsynt med en utvendig vulst, som delvis er anordnet for å gi stivhet til beholderlegemet slik at det bibeholder sin rette form, og delvis for å være i friksjonsinngrep med lokket ved friksjonsflater (se fig. 2) etter at en riveremse er fjernet fra beholderlegemet og lokket er presset ned ytterligere en bit. Riveremsen dannes av to snittlinjer mellom dobbelforseglingen og vulsten, og er forsynt med en tunge,
på hvilken man skal anbringe en spesiell nøkkel for å rulle opp riveremsen og dermed åpne beholderlegemet. Riveremsen blir således ikke noen del av lokket etter åpningen men må kastes bort.
Nærværende oppfinnelse vedrører nærmere bestemt en beholder med lokk som etter den første åpningen igjen kan tillukkes, hvor lokket ved originallukkingen er festet til beholderen langs en permanent forbindelse rundt munningsdelen, f.eks. ved sveising eller liming, slik at den første åpning foretas langs en ringformet opprivningsanvisning mellom selve beholderen og den permanente forbindelse, slik at lokket og den dertil permanent festede del av beholderen.skilles fra-... beholderen, og hvor lokket videre er utført med støtteflate for anlegg mot beholdermunningens innvendige vegg, for nøy-aktig plassering av lokk med permanent festet del ved gjentatt lukking av beholderen, og oppfinnelsen er karakterisert ved at den til lokket permanent festede del og lokkets støtteflate er slik innbyrdes plassert at beholderens munningskant vil bli fastklemt mellom disse ved gjentatt lukking.
Separate åpningsanvisninger i form av gripeorganer såsom tunge eller lignende kan ifølge oppfinnelsen anordnes enten i tilslutning til lokkets ringformede kantparti eller i til- . slutning til beholderens ringformede flensparti.
Oppfinnelsen skal i det følgende beskrives under henvisning til vedlagte tegninger, hvor: Fig. 1 a viser et'delsnitt gjennom en beholders åpningsdel og gjennom et ovenfor dennes beliggende lokk innen lokkets fastgjøring mot beholderen,
fig. 1 b viser et delsnitt av beholderens åpningsdel anordnet med to sveiseanordninger,
fig. 2 a-b viser delsnitt av en beholders åpningsdel med på
beholderen festet lokk,
fig. 3 viser et delsnitt av en beholders åpningsdel under åpningen av beholderen,
fig. 4 viser en delsnitt av en beholders åpningsdel ved
igjenlukket beholder,
fig. 5-7 viser utførelsesformen av beholdere og lokk anordnet ifølge de utførelsesalternativer som vises i fig. 1-4,
fig. 8-10 viser en prinsipiell anordning for fastgjøring av lokket mot beholderen ved hjelp av ultralydsveis-ing.
I figurene 1-6 gjenfinnes en beholder 10, som i sin munningsdel 11 overgår i en ringformet flens 13 med et flateparti 12. Det ringformede flatepartiet er utformet med en eller flere sveiseanvisninger 15. I overgangen mellom den ringformede flensen og beholderlegemet er det utvendig anordnet en ringformet forsvakning 16.
Videre gjenfinnes et lokk 30 som har et ringformet kantparti 31, som er tilpasset beholderens ringformede flateparti 12. Lokket har en sylindrisk del 33 som passer trangt mot inner-flaten hos beholderens munningsdel. I fig. 2b vises lokkets ringformede kantparti 31 forsynt med en nedadbøyd kant 50
for å gi øket stivhet til det ringformede kantpartiet. Her-ved erholdes en viss beskyttelse mot at forbindelsen i den ringformede forsvakningen brytes når krefter virker mot lokkets ringformede kantparti, f.eks. i forbindelse med trans-port eller stapling av beholdere.
I fig. 1 er lokket 30 beliggende ovenfor beholderen 10, mens
i fig. 2a og 2b er lokket påsatt beholderen, f.eks. ved hjelp av liming eller sveising. I fig. 3 er en kraft (se pil) an-brakt mot undersiden av beholderens ringformede flens 13, hvor-
ved den ringformede flensen fraskilles fra beholderlegemet i den ringformede forsvakningen 16. Ved fraskillingen danner det tidligere lokket sammen med den ringformede flensen 13
en enhet som ved ny igjenlukking av beholderen smetter inn i beholderens munningsdel på den måte som er vist i fig. 4.
I fig. 5 er det et gripeorgan 17 anordnet på den ringformede flensen 13, mens i fig. 7 er et gripeorgan 12 anordnet på lokket 30. I utførelsesformen ifølge fig. 7 kreves større styrke av forbindelsen mellom lokkets ringformede kantparti og beholderens ringformede flens enn i utførelsesformen iføl-ge fig. 5, da fastgjøringen skal motstå de dragkrefter som oppstår ved åpningen av beholderen.
Fig. 6 viser i perspektiv beholderens munningsdel 11 med et ovenfor beholderen beliggende lokk 30.
I figurene 8-10 vises en beholder 10, som med sin ringformede flens 13 hviler mot et mothold 40. Lokket 30 er plassert oven-på beholderen. Lokket hviler derved på den ringformede sveiseanvisningen 15 (se fig. 9). Ovenfor beholderen med lokk befinner det seg en ultralydsender eller sonotrod 41.
Ved fastgjøring av lokket mot beholderen presser sonotroden lokkets ringformede kantparti 31 mot sveiseanvisningen 15 hos beholderens ringformede flateparti 12. Ultralydsvingningene overføres via lokket til sveiseanvisningen, hvorved oppvarm-ing av materialet i området for sveiseanvisningen finner sted, slik at materialet i lokket forbindes med materialet i beholderen. Situasjonen etter sammensveisingen fremgår av fig. 10, hvor området for sammensveisingen er markert med henvisningstallet 34 (se også fig. 2-4).

Claims (1)

1. Beholder (10) med lokk (30) som etter den første åpningen igjen kan tillukkes, hvor lokket (30) ved originallukkingen er festet til beholderen (10) langs en permanent forbindelse (34) rundt munningsdelen (11), f.eks. ved sveising eller liming, slik at den første åpning foretas langs en ringformet opprivningsanvisning (16) mellom selve beholderen (10) og den permanente forbindelse (34), slik at lokket (30) og den dertil permanent festede del (13) av beholderen skilles fra beholderen (10), og hvor lokket (30) videre er utført med støtteflate (33) for anlegg mot beholdermunningens (11) innvendige vegg, for nøyaktig plassering av lokk (30) med permanent festet del (13) ved gjentatt lukking av beholderen, karakterisert ved at den til lokket (30) permanent festede del (13) og lokkets støtteflate (33) er slik innbyrdes plassert at beholderens (10) munningskant vil bli fastklemt mellom disse ved gjentatt tillukking.
NO783696A 1977-11-17 1978-11-03 Beholder med lokk NO146424C (no)

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SE7712987A SE423218B (sv) 1977-11-17 1977-11-17 Anordning vid originalforsluten och aterforslutbar behallare

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BE (1) BE872051A (no)
CH (1) CH635291A5 (no)
DE (1) DE2848499A1 (no)
DK (1) DK146560C (no)
FR (1) FR2409202A1 (no)
GB (1) GB2009704B (no)
NL (1) NL7811284A (no)
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Also Published As

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US4207989A (en) 1980-06-17
JPS5834345B2 (ja) 1983-07-26
FR2409202B1 (no) 1983-02-04
NO783696L (no) 1979-05-21
DE2848499A1 (de) 1979-05-23
DE2848499C2 (no) 1988-03-31
JPS57125158A (en) 1982-08-04
FR2409202A1 (fr) 1979-06-15
DK509178A (da) 1979-05-18
GB2009704A (en) 1979-06-20
CH635291A5 (de) 1983-03-31
JPH0159182B2 (no) 1989-12-15
JPS57125159A (en) 1982-08-04
JPS6226991B2 (no) 1987-06-11
GB2009704B (en) 1982-06-23
NO146424C (no) 1982-09-29
USRE31759E (en) 1984-12-11
BE872051A (fr) 1979-05-16
SE423218B (sv) 1982-04-26
DK146560B (da) 1983-11-07
NL7811284A (nl) 1979-05-21
DK146560C (da) 1984-04-16
JPS5478289A (en) 1979-06-22
SE7712987L (sv) 1979-05-18

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