NO124025B - - Google Patents

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Publication number
NO124025B
NO124025B NO0322/69A NO32269A NO124025B NO 124025 B NO124025 B NO 124025B NO 0322/69 A NO0322/69 A NO 0322/69A NO 32269 A NO32269 A NO 32269A NO 124025 B NO124025 B NO 124025B
Authority
NO
Norway
Prior art keywords
tear
panel
zone
tear zone
tearing
Prior art date
Application number
NO0322/69A
Other languages
Norwegian (no)
Inventor
J Laurizio
Original Assignee
American Flange & Mfg
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 American Flange & Mfg filed Critical American Flange & Mfg
Publication of NO124025B publication Critical patent/NO124025B/no

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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
    • B65D47/00Closures with filling and discharging, or with discharging, devices
    • B65D47/04Closures with discharging devices other than pumps
    • B65D47/06Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/14Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means
    • B65D47/147Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means for snap-on caps
    • 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
    • B65D39/00Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/08Threaded or like closure members secured by rotation; Bushes therefor
    • B65D39/082Bung-rings and bungs for bung-holes
    • B65D39/084Separated bung-rings made by one element
    • 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
    • B65D47/00Closures with filling and discharging, or with discharging, devices
    • B65D47/04Closures with discharging devices other than pumps
    • B65D47/06Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/103Membranes with a tearing element

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)

Description

Lukke-konstruksjon med utrivningspanel. Closure construction with tear-out panel.

Foreliggende oppfinnelse vedrører lukker for beholdere, og spesielt slike lukke-legemer forsynt med en i ett med dette dannet utrivningspanel som er fortrinnsvis svekket, for å lette fjernelse for hånd ved utrivning, samt at'det bibeholdes tilstrekkelig styrke for å hindre ikke tilsiktet brudd. The present invention relates to closures for containers, and in particular such closure bodies provided with a pull-out panel formed in one with this, which is preferably weakened, in order to facilitate removal by hand during pull-out, and that sufficient strength is maintained to prevent unintentional breakage.

Oppfinnelsen vedrører spesielt en lukke-konstruksjon bestående av et legeme som omgir en aksial utleveringspassasje, hvilket legeme omfatter et ringformet parti for samvirke med en beholdervegg og fastsettes i en åpning i beholderveggen, et panel som lukker den aksiale utleveringspassasje, en svekket rivesone med redusert tverrsnittstykkelse tildannet i panelet og som forbinder panelet og selve legemet, og et utrivningsøre utformet i The invention relates in particular to a closing structure consisting of a body surrounding an axial delivery passage, which body comprises an annular part for cooperation with a container wall and is fixed in an opening in the container wall, a panel that closes the axial delivery passage, a weakened tearing zone with reduced cross-sectional thickness formed in the panel and connecting the panel and the body itself, and a release tab formed in

ett med og som en del av panelet nær dettes rivesone. one with and as part of the panel near its tear zone.

Det er hittil blitt frembragt en rekke forskjellige So far, a number of different ones have been produced

typer av beholderlukke-konstruksjoner omfattende en utleveringspassasje lukket med en i ett med denne dannet avstengningsvegg som- sikrer mot mulig lekkasje under transport og behandling av beholderen, og som i tillegg, gjør det lett å oppdage eventuelle forsøk på åpning av lukket av uvedkommende. Et andre lukke-legeme kan også- tilveiebringes, hvis ønsket, for å bevirke gjenluknirig av utleveringspassasjen etter åt den første lukning er brutt og etter at endel av beholderens innhold er utlevert. types of container closure constructions comprising a delivery passage closed one-on-one with this formed shut-off wall which ensures against possible leakage during transport and processing of the container, and which, in addition, makes it easy to detect any attempts to open the closed by unauthorized persons. A second closing body can also be provided, if desired, to effect resealing of the dispensing passage after the first closure has been broken and after part of the container's contents have been dispensed.

Noen av disse tidligere konstruksjoner har også omfat- Some of these earlier constructions also include

tet arrangementer hvorved lukke-eller tetningsveggen lett kan brytes opp eller fjernes av brukeren, for å oppnå lovlig adgang til beholderens innhold. Blant disse arrangementer benyttes gjennan-hulling med et, skarpt instrument, utskjæring med en kniv, drag i et utrivningsøre ved hjelp åv en tang. I alle disse forbindelser er det nødvendig med lett tilgang til en eller annen sort verk- tight arrangements whereby the closing or sealing wall can be easily broken up or removed by the user, in order to obtain legal access to the container's contents. Among these arrangements, repeated piercing with a sharp instrument, carving with a knife, pulling on a plucking ear with the help of a pair of pliers are used. In all these connections, easy access to some kind of work is necessary.

tøy eller redskap, samt at det foreligger muligheter for ødeleg-gelse av lukket i noen grad under nevnte operasjoner. Ønsket om å kunne dra ut hele eller endel av forseglingsveggen for hånd, cloth or tools, as well as that there are possibilities for the destruction of the closed to some extent during the aforementioned operations. The desire to be able to pull out all or part of the sealing wall by hand,

ved hjelp av et hensiktsmessig uttrekningsøre anordnet i ett med lukkekonstruksjonen, har lenge vært tilstede, mén forsøk på å by means of an appropriate extraction eye arranged in one with the closing structure, has long been present, but attempts to

oppnå denne store fordel har inntil idag ikke resultert i kon-struksjonsløsninger som har vært helt fri for ulemper. achieving this great advantage has, until today, not resulted in construction solutions that have been completely free of disadvantages.

Problemet som måtte overvinnes, var å tilveiebringe en lukke-konstruksjon hvor forseglingsveggen er tilstrekkelig svekket for å lette den begynnende utrivning sam fjernelse av forseglingsveggenfo-r hånd og allikevel bibeholde den nødvendi- The problem that had to be overcome was to provide a closure structure where the sealing wall is sufficiently weakened to facilitate the initial stripping and removal of the sealing wall by hand and still retain the necessary

ge styrke, for å kunne utføre den primære forseglingsfunksjon. Dette problem er spesielt kritisk ved støpte lukker av plast, skjønt oppfinnelsen er ikke på noen måte begrenset til dette, på grunn av den begynnende motstand mot uttrekning, som frembys av syntetisk plastmateriale, som f.eks. polyetylen. Så snart et begynnende brudd i forseglingsveggen er oppnådd ved hjelp av opprivning, kan den fortsatte opprivning skje med forholdsvis letthet. Enskjønt en utrivningspanel kan forsynes med en omgivende svekket rivesone med redusert tverrsnitt, for å lette rivningen, gjenstår fortsatt det problem at hvis rivesonen blir redusert i tykkelse i tilstrekkelig grad, for å tillate begynnende brudd med relativ letthet, ved det begynnende trekk, vil den resulterende seksjon bli for svak i hele give strength, to be able to perform the primary sealing function. This problem is particularly critical in the case of molded plastic shutters, although the invention is in no way limited thereto, because of the initial resistance to withdrawal, which is offered by synthetic plastic material, such as e.g. polyethylene. As soon as an initial break in the sealing wall has been achieved by tearing, the continued tearing can take place with relative ease. Although a tear-out panel may be provided with a surrounding weakened tear zone of reduced cross-section, to facilitate tearing, the problem still remains that if the tear zone is reduced in thickness sufficiently to permit incipient rupture with relative ease, at the initial pull, it will resulting section become too weak throughout

sin utstrekning til å tjene som en del av en effektiv tetning eller lukke. Det å opprettholde materialtykkelsen i en rivesone nøyaktig på noen få tusendeler av en tomme under produksjonsfor-hold, er vanskelig, og selv om det lykkes, fører dette til mulig-heten for tilsiktet brudd i utrivningspanelet under følgende behandling og transport av beholderen med påsatt lukke. its extent to serve as part of an effective seal or close. Maintaining material thickness in a tear zone accurately to within a few thousandths of an inch under production conditions is difficult and, even if successful, introduces the possibility of intentional rupture of the tear panel during subsequent processing and shipping of the capped container .

Det er følgelig et hovedformål ved foreliggende oppfinnelse å tilveiebringe en ny og forbedret opprivningslukkekon-struksjon hvor forseglingsveggen omfatter en rivesone hensiktsmessig svekket for å lette den begynnende utrivning samt fjernelse av et utrivningspanel for hånd, mens det samtidig bibeholdes tilstrekkelig styrke for å hindre utilsiktet brudd. It is therefore a main purpose of the present invention to provide a new and improved tear-off closure construction where the sealing wall comprises a tear zone suitably weakened to facilitate the incipient tear-out as well as the removal of a tear-out panel by hand, while at the same time maintaining sufficient strength to prevent accidental breakage.

De karakteristiske trekk vil fremgå av de etterfølgen-de krav samt at oppfinnelsen vil bli nærmere beskrevet under hen-visning til et i tegningen vist utførelseseksempel hvor The characteristic features will be apparent from the subsequent claims and that the invention will be described in more detail with reference to an embodiment shown in the drawing where

fig.l viser et vertikalt snitt av en lukkekonstruksjon av den type som har et lukkelegeme og til dette fastgjort deksel, og som videre omfatter et utrivningspanel tildannet i samsvar med oppfinnelsen, fig.l shows a vertical section of a closing structure of the type which has a closing body and a cover attached to it, and which further comprises a tear-out panel formed in accordance with the invention,

fig.2 er et topplanriss av nevnte lukkelegeme i fig.l, fig.2 is a top view of said closing body in fig.1,

fig.3 er et fragmentarisk enderiss i stor målestokk fig.3 is a fragmentary end view on a large scale

av det fjernede utrivningspanel, og som viser den svekkede rivesone i området ved uttrekningsøret, of the removed tear-out panel, and which shows the weakened tear zone in the area of the pull-out eye,

fig.4 er et fragmentarisk snitt i stor målestokk av rivesonen rett overfor utrivningsøret, fig.4 is a fragmentary section on a large scale of the tearing zone directly opposite the tearing ear,

fig.5 er et riss tilsvarende fig.4i og som viser rivesonen i umiddelbar nærhet av utrivningsøret, fig.5 is a drawing corresponding to fig.4i and which shows the tear zone in the immediate vicinity of the tear-out ear,

fig.6 er et tverrsnitt av en propp-opptagende lukke-konstruks jon, omfattende en utrivningspanel tildannet i samsvar med oppfinnelsen, fig.6 is a cross-section of a plug-receiving closure construction, comprising a tear-out panel formed in accordance with the invention,

fig.7 er et topplanriss av lukke-konstruksjonen i figur 6, Fig. 7 is a top view of the closure structure in Fig. 6,

fig.8 er et fragmentarisk snitt i stor målestokk av rivesonen i umiddelbar nærhet av utrivningsøret som vist i fig.6,qg fig.8 is a fragmentary section on a large scale of the tear zone in the immediate vicinity of the tear-out ear as shown in fig.6, qg

fig.9 er et riss tilsvarende fig.8, som viser rivesonen i avstand fra utrivningsøret. Fig. 9 is a view corresponding to Fig. 8, which shows the tear zone at a distance from the tear-out ear.

Ved først å betrakte lukke-konstruksjonen med fast-gbrt deksel, hvilken er en utførelsesform av oppfinnelsen og som er klart vist i fig.l, innsatt i en åpning i en beholdervegg 1 etter at beholderen er fylt gjennom denne, sees det at hovedkompo-,nentene omfatter et munnstykke eller legeme 2, ét overliggende ' sneppdeksel 3 og en fleksibel hengse1stropp" 4 s°m forbinder dekselet og legemet. Hele lukket 1 er støpt i ett som en enkel en-het av hensiktsmessig syntetisk plastmateriale som'f.eks. polyetylen, hvilket ikke må oppfattes som begrensende eksempel. Legemet 2 har en kort, rørformet del omgitt av en radiell utadragende, sir-kulær flens 5» Fra flensen 5 strekker det seg en kort dekseloppta-gende hals 6 som ved sin øvre ende slutter i en sirkulært forstørret låsesvulst "] . 1 den ytre flate av legemet 2 er det nedenfor flensen 5 tildannet en radielt utad åpen konkavt buet flate 8 som ved sin • nedre ende slutter i en seksjon ^ med maksimum diameter. Det hedre endeparti av legemet 2 avsmalner deretter radielt innad og nedad ved lo fra seksjonen 9 og slutter i et nedre, sylindrisk styrepar-ti 11.. By first looking at the closing structure with fixed cover, which is an embodiment of the invention and which is clearly shown in fig.1, inserted into an opening in a container wall 1 after the container has been filled through it, it can be seen that the main component The device comprises a nozzle or body 2, an overlying 'snap cover' 3 and a flexible hinge strap 4 which connects the cover and the body. The whole closed 1 is molded in one as a simple unit of suitable synthetic plastic material such as . polyethylene, which must not be understood as a limiting example. The body 2 has a short, tubular part surrounded by a radially projecting, circular flange 5". From the flange 5 extends a short cover-receiving neck 6 which ends at its upper end in a circularly enlarged locking tumor "] . On the outer surface of the body 2, below the flange 5, a radially outwardly open concavely curved surface 8 is formed which ends at its • lower end in a section ^ of maximum diameter. The upper end part of the body 2 then tapers radially inwards and downwards at the end of the section 9 and ends in a lower, cylindrical guide part 11.

Den indre flate av halsen eller passasjen 12 i legemet 2 er utformet med en kort, radielt inhadragende skulder 13 The inner surface of the neck or passage 12 in the body 2 is designed with a short, radially extending shoulder 13

ved sin nedre ende og en innad skrånende avsats 14 ved sitt midt-parti. Den øvre ende av halsen eller passasjen 12 er lukket ved hjelp av en i ett med denne tildannet utrivningspanel 2o. Festet i ett med panelet 2o ved dets periferi, finnes et utrivningsøre 21 som er forbundet med panelet 2o i Et grunnparti 22 og deretter strekker seg oppad og radielt innad i en kort hals 23 og ender i et ringparti 24 beregnet for opptagelse av en persons finger. En svekket rivesone 25 strekker seg om panelets 2o omkrets og danner forbindelsen mellom panelet og den øvre ende av legemets hals eller passasje 12. Som det fremgår av figur 5> ligger den øvre flate 26 av panelet 2o i flukt med toppflaten 27 på vulsten 7* Rivesonen 25 omfatter et V-formet spor definert av de indre flater 29 på vulsten 7 og den ytre avskrånede kant 3°P& panelet 2o. Det gjenværende materialsteg 31 med redusert tverrsnittstykkelse som forbinder panelet 2o og legemets hals eller passasje 12, danner en bane, langs hvilken rivevirkningen lett kan skje med den aktuelle atskilling som oppstår i spissen 32 av V-formen. at its lower end and an inwardly sloping ledge 14 at its middle part. The upper end of the neck or passage 12 is closed by means of an integrally formed tear-out panel 2o. Fixed integrally with the panel 2o at its periphery, there is a release tab 21 which is connected to the panel 2o in a base portion 22 and then extends upwardly and radially inward in a short neck 23 and ends in a ring portion 24 intended for receiving a person's finger . A weakened tear zone 25 extends around the perimeter of the panel 20 and forms the connection between the panel and the upper end of the body's neck or passage 12. As can be seen from Figure 5>, the upper surface 26 of the panel 20 is flush with the top surface 27 of the bead 7* The tear zone 25 comprises a V-shaped groove defined by the inner surfaces 29 of the bead 7 and the outer chamfered edge 3°P& the panel 2o. The remaining material step 31 of reduced cross-sectional thickness connecting the panel 20 and the neck or passage 12 of the body forms a path along which the tearing effect can easily occur with the relevant separation occurring at the tip 32 of the V-shape.

Den spesielle form som er bibragt rivesonen, nedsetter den nødvendige trekkraft for å bevirke fjernelse av utrivningspanelet ved å konsentrere kraften og den resulterende rivevirkning vad spissen 32 i rivesonen. Denne form har en videre fordel ved at at-skillelse oppstår like ved halsens eller passasjens 12 overflate, slik at det gjenstår ét minimum avrevet materiale som strekker seg ut fra halsen eller passasjen etter at panelet er fjernet. , The special shape imparted to the tear zone reduces the pulling force necessary to effect removal of the tear-out panel by concentrating the force and the resulting tearing action at the tip 32 in the tear zone. This form has a further advantage in that at-separation occurs close to the surface of the neck or passage 12, so that there remains a minimum of torn material extending from the neck or passage after the panel is removed. ,

Det har imidlertid vist.seg at til tross for den ut-forming av rivesonen som er beskrevet ovenfor, er den begynnende rivemotstand vanskelig å overvinne, hvis steget 31. av gjenværende materiale har en tilstrekkelig tykkelse som vil være nødvendig for å beskytte mot tilfeldig brudd av panelet. Selvsagt, så snart denne begynnende motstand er overvunnet og rivevirkningen fortsetter, blir den trekkraft ..som er nødvendig for å fortsette utriv-ningsaksjonen, vesentlig minsket. However, it has been found that despite the design of the tear zone described above, the initial tear resistance is difficult to overcome, if the step 31 of remaining material has a sufficient thickness which will be necessary to protect against accidental breakage of the panel. Of course, as soon as this initial resistance is overcome and the tearing action continues, the pulling force necessary to continue the tearing action is substantially reduced.

Det ovennevnte er overvunnet ved foreliggende oppfinnelse ved å kompensere for. stegets 31 iboende begynnende motstand mot utrivning. I fig.2 sees den svekkede rivesone 25 som strekker seg rundt panelets 2o hele omkrets, og fig.4 viser rivesonen 25 umiddelbart nær utrivningsøret 21, ved hvilket punkt den ytre skrånende kant 3° av panelet går over i utrivningsørets grunnparti 22. Et begynnelsesparti er tilveiebragt i umiddelbar nærhet av utrivningsøretj og omfatter en innskåret flate 33 i den undre flate 34 av panelet. 2o.. Den i-nnskårede flate 33 nar en kordeform begrenset av et periferielt parti av halsen eller passasjen 12 og et lavt trinn 35 som forbinder den nedskårede flate 33 °g den undre panelflate 34-,Steget av gjenværende materiale indikert med The above is overcome by the present invention by compensating for. step's 31 inherent initial resistance to pulling out. In fig.2 the weakened tear zone 25 is seen which extends around the entire circumference of the panel 2o, and fig.4 shows the tear zone 25 immediately close to the tear-out ear 21, at which point the outer sloping edge 3° of the panel passes into the tear-out ear's base part 22. An initial part is provided in the immediate vicinity of the extraction earj and comprises an incised surface 33 in the lower surface 34 of the panel. 20. The undercut surface 33 is a chord shape bounded by a peripheral portion of the neck or passageway 12 and a low step 35 connecting the undercut surface 33 and the lower panel surface 34. The step of remaining material indicated by

36, i begynnelsespartiet mellom spissen 32 og den nedskårede flate 33 blir på denne måte vesentlig redusert i tverrshittstykkelse i forhold til steget 31 av gjenværende materiale i hovedpartiet av rivesonen 25. 36, in the initial part between the tip 32 and the cut-down surface 33 is in this way significantly reduced in transverse sheet thickness in relation to the step 31 of remaining material in the main part of the tearing zone 25.

I figurene 2 og 3 ^an det sees at det videre reduser-te steg 36 strekker seg i en kort lengde rundt panelets omkrets på hver side av avrivningsørets grunndel 22, slik at begynnelsespartiet for rivesonen 25 svekkes tilstrekkelig for det beregnede formål, men ikke slik at det bevirker nevneverdig strukturell svekkelse av panelet. Én moderat trekkraft på avrivningsøret 23 strekker materialet i det meget tynne begynnelsesparti av steget 26, slik at dette bringes til å briste og bevirker at rivevirkningen fortsetter. Fortsatt riving av det relativt tykkere steg 31 langs den svekkede sone 25 er deretter ganske lett. In Figures 2 and 3 it can be seen that the further reduced step 36 extends for a short length around the perimeter of the panel on each side of the base part 22 of the tear-off ear, so that the initial part of the tear zone 25 is weakened sufficiently for the intended purpose, but not so that it causes significant structural weakening of the panel. A moderate pulling force on the tear-off eye 23 stretches the material in the very thin initial part of the step 26, so that this is caused to burst and causes the tearing action to continue. Further tearing of the relatively thicker step 31 along the weakened zone 25 is then quite easy.

Det fastgjorte deksel 3 er forsynt med et låseparti 4° for samvirke med legemets 2 vulst 7 1 lukket stilling. Et la-gringsrom 41 er også tilveiebragt i dekselet 3 for å oppbevare avrivningsøret 23 over panelet 2o inne i dekselet før fjernelse The attached cover 3 is provided with a locking part 4° for cooperation with the body 2 bead 7 1 closed position. A storage compartment 41 is also provided in the cover 3 to store the tear-off tab 23 above the panel 20 inside the cover before removal

av panelet. of the panel.

En'annen, form av oppfinnelsen er vist i figurene 6-9, og omfatter et pluggopptagende legeme 5°> omfattende en sylindrisk vegg 51 innvendig gjenget ved 52 og ved sin" øvre ende omgitt av en sikringsléppe 53 med en omvendt U-form. Leppen 53 er festet til en hensiktsmessig formet beholderveggåpning (ikke vist) ved hjelp av en metallkrympering 54- Et tettende parti 55 er tildannet ved dei øvre ende av gjengene 52 nær ringen 54» En i ett med legemet 5o dannet forseglingsvegg 56 er anordnet ved den nedre ende av halsen 51 og er utformet med en sentral utrivningspanel 57 med en tilbaketrukket lomme 57a* Et ringformet avrivningsøre 58 er forbundet med panelens 57 periferi og er beregnet til å bli tryk- Another form of the invention is shown in Figures 6-9, and comprises a plug receiving body 5°> comprising a cylindrical wall 51 internally threaded at 52 and surrounded at its upper end by a securing lip 53 with an inverted U shape. The lip 53 is attached to an appropriately shaped container wall opening (not shown) by means of a metal crimp ring 54. A sealing part 55 is formed at the upper end of the threads 52 near the ring 54. A sealing wall 56 formed integrally with the body 50 is arranged at the lower end of the neck 51 and is designed with a central tear-off panel 57 with a retracted pocket 57a* An annular tear-off ear 58 is connected to the periphery of the panel 57 and is intended to be pressure-

ket ned i lagringstilling inne i panellommen 57a ved innsetning av en lukkeplugg (ikke vist). En rivesone 59 omgir'utrivningspa- lowered into the storage position inside the panel pocket 57a by inserting a closing plug (not shown). A tearing zone 59 surrounds the tearing pa-

nel et 57 °S omfatter som vist i fig.9, en ringformet oppad åpen V-formet spor 60 i panelets øvre flate og en konsentrisk anord- nel et 57 °S comprises, as shown in Fig. 9, an annular upwardly open V-shaped groove 60 in the upper surface of the panel and a concentric device

net nedad åpnende kanal 6l i panelets undre flate. Steget av gjenværende materiale indikert ved 62, mellom spissen 63 i sporet 60 og kanalen 6l, blir tilstrekkelig redusert i tverrsnittstykkel- net downward opening channel 6l in the lower surface of the panel. The step of remaining material indicated at 62, between the tip 63 of the groove 60 and the channel 6l, is sufficiently reduced in cross-sectional

se, for å tillate lett rivning langs rivesonen 59* Som i oppfin-nelsens hovedutførelse, blir den begynnende motstand mot rivning minsket ved tilveiebringelse av en begynnelsessone nær utrivnings-øret 58. Av fig. 7 °é 8 fremgår at det oppad åpnende, V-formede spor 60 strekker seg rundt panelets 57 hele omkrets. Den nedad-åpnende kanal 6l er imidlertid avbrutt i nærheten av utrivnings-ørets 58 grunnparti, ved hjelp av tilveiebringelse av et dypere kanalparti 62. Dette resulterer i et steg av gjenværende materi- see, to allow easy tearing along the tear zone 59* As in the main embodiment of the invention, the initial resistance to tearing is reduced by providing an initial zone near the tear-out ear 58. From fig. 7 °é 8 it appears that the upwardly opening, V-shaped groove 60 extends around the entire circumference of the panel 57. However, the downwardly opening channel 6l is interrupted near the base portion of the tear-out lug 58, by providing a deeper channel portion 62. This results in a step of residual material

ale 64 som har en videre redusert tvérrsnittstykkelse i forhold til steget 62. Til tross for at den buede begynnelsessone er til- i strekkelig svekket for å redusere den begynnende motstand mot rivning, er de ønskede strukturelle egenskaper av lukket bibeholdt ved hjelp av' de relativt sterkere gjenværende rivesoner som lett adskilles idet rivningen fortsettes. ale 64 which has a further reduced cross-sectional thickness in relation to the step 62. Despite the fact that the curved initial zone is sufficiently weakened to reduce the initial resistance to tearing, the desired structural properties of closed are maintained by means of the relatively stronger remaining tear zones that separate easily as the tear continues.

Claims (2)

1. Lukke-konstruksjon av et legeme som omgir en aksial utleveringspassasje, hvilket legeme omfatter et ringformet parti (5) for samvirke med en beholdervegg ogfestsettelse i en åpning i beholderveggen, et panel som lukker den aksiale utleveringspassasje, en svekket rivesone med redusert tverrsnittstykkelse tildannet i panelet og som forbinder panelet og selve legemet, og et utrivningsøre (21, 58) utformet i ett med og som en del av panelet (2o, 57) nær dettes rivesone (25, 59)>karakterisert ved at rivesonen har et begynnelsesparti for opprivning i umiddelbar nærhet av utrivningsøret (21, 58), hvilket begynnelsesparti har en tverrsnittstykkelse som er videre redusert i forhold til resten av rivesonen (25, 59)> hvilken ytterligere svekning er tilveiebragt i form av en fordypning i den flate av panelet (2o, 57) som ligger motsatt av flaten med rivesonens (25, 59) spor, hvorved den begynnende motstand mot utrivning av panelet (2o, 57) langs rivesonen (25, 59) blir minsket.1. Closure construction of a body surrounding an axial delivery passage, which body comprises an annular portion (5) for engagement with a container wall and fixing in an opening in the container wall, a panel closing the axial delivery passage, a weakened tear zone with reduced cross-sectional thickness formed in the panel and which connects the panel and the body itself, and a tear-out ear (21, 58) formed in one with and as part of the panel (2o, 57) near its tear zone (25, 59)>characterized in that the tear zone has a starting part for tear in the immediate vicinity of the tear-out ear (21, 58), which initial part has a cross-sectional thickness that is further reduced in relation to the rest of the tear zone (25, 59)> which further weakening is provided in the form of a depression in the face of the panel (2o , 57) which lies opposite the surface with the groove of the tear zone (25, 59), whereby the initial resistance to tearing out of the panel (2o, 57) along the tear zone (25, 59) is reduced. 2. Lukke-konstruksjon ifølge krav 1, karakterisert ved at rivesonen (25, 59) bortsett fra begynnelsespartiet, har en ensartet tverrsnittstykkelse.2. Closure construction according to claim 1, characterized in that the tear zone (25, 59) apart from the beginning part, has a uniform cross-sectional thickness.
NO0322/69A 1968-01-31 1969-01-28 NO124025B (en)

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US (1) US3458080A (en)
JP (1) JPS4812265B1 (en)
AT (1) AT294607B (en)
BE (1) BE727359A (en)
BR (1) BR6905865D0 (en)
CH (1) CH487038A (en)
DE (1) DE1905242A1 (en)
ES (1) ES362705A1 (en)
FI (1) FI51321C (en)
FR (1) FR2001010A1 (en)
GB (1) GB1200042A (en)
IE (1) IE32610B1 (en)
MY (2) MY7100130A (en)
NL (1) NL158752B (en)
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Also Published As

Publication number Publication date
US3458080A (en) 1969-07-29
NL6901443A (en) 1969-08-04
JPS4812265B1 (en) 1973-04-19
ES362705A1 (en) 1970-09-01
AT294607B (en) 1971-11-25
BE727359A (en) 1969-07-01
GB1200042A (en) 1970-07-29
NL158752B (en) 1978-12-15
FR2001010A1 (en) 1969-09-19
FI51321B (en) 1976-08-31
IE32610L (en) 1969-07-31
MY7200003A (en) 1972-12-31
BR6905865D0 (en) 1973-01-30
CH487038A (en) 1970-03-15
DE1905242A1 (en) 1969-07-31
MY7100130A (en) 1971-12-31
IE32610B1 (en) 1973-10-03
FI51321C (en) 1976-12-10

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