DK148231B

DK148231B - Container with associated plastic lid

Info

Publication number: DK148231B
Application number: DK202981A
Authority: DK
Inventors: Poul Gunnar Andersson
Original assignee: Poul Gunnar Andersson
Priority date: 1981-05-07
Filing date: 1981-05-07
Publication date: 1985-05-13
Also published as: DK202981A; DK148231C

Description

i U8231in U8231

Den foreliggende opfindelse angår en beholder af den i krav l's indledning angivne art.The present invention relates to a container of the kind specified in the preamble of claim 1.

Under håndtering af kendte beholdere af denne art, f.eks. når et antal beholdere skal anbringes side om side i en transportkasse, kan utilsigtet åbning af beholderen, forekomme, når et opadrettet stød på skørtets nedre kant kan resultere i, at låget skubbes opad i forhold til beholderlegemet. Denne risiko er større, jo større beholderen er i forhold til beholdermaterialets vægtykkelse.When handling known containers of this kind, e.g. when a plurality of containers are to be placed side by side in a transport box, unintentional opening of the container may occur when an upward impact on the lower edge of the skirt may result in the lid being pushed upwardly relative to the container body. This risk is greater the greater the container in relation to the wall thickness of the container material.

Det er kendt, at plastbeholdere har et rundtgående beskyttelsesorgan, der dækker den nedre kant af lågskørtet, og som er forbundet med beholderlegemet via en svækningslinie, således at det beskyttende organ kan fjernes ved rivning langs denne linie. Det beskyttende organ tjener som et garantiorgan, der er udformet til at angive, at en eller anden har forsøgt at åbne eller har åbnet beholderen.It is known that plastic containers have a circumferential protective member covering the lower edge of the lid skirt and which is connected to the container body via a weakening line so that the protective member can be removed by tearing along this line. The protective body serves as a guarantee body designed to indicate that someone has attempted to open or have opened the container.

GB patent nr. 1.489.515 beskriver en beholder af denne art med et plastlåg, hvilket låg har et skørt, der omgiver den øvre kantdel af beholderlegemet, og har en indadrettet vulst i indgreb med en nedre del af en udadrettet vulst på beholderlegemet. På beholderens ydre flade er der et rundtgående beskyttelsesorgan, der har et i det væsentlige L-formet tværsnit, og hvor en ende af en første del af beskyttelsesorganet er ført under skørtets nedre kant og er forbundet til beholderens væg, og hvor en del af beskyttelsesorganets anden part er anbragt med afstand fra og omgiver i det mindste størstedelen af skørtets nedre part.GB Patent No. 1,489,515 discloses a container of this kind with a plastic lid, which lid has a skirt that surrounds the upper edge portion of the container body and has an inwardly directed bead in engagement with a lower portion of an outward bead of the container body. On the outer surface of the container there is a circumferential guard member having a substantially L-shaped cross-section, where one end of a first portion of the guard member is passed below the lower edge of the skirt and is connected to the wall of the vessel, and a portion of the guard member the other part is spaced apart and surrounds at least most of the lower part of the skirt.

Denne konstruktion tilsigter at yde beskyttelse mod utilsigtet åbnning af beholderen under håndtering, og beholderens konstruktion er enkel, således at beholderen med låg er nem at fremstille og nem at benytte.This construction is intended to provide protection against accidental opening of the container during handling, and the structure of the container is simple, so that the container with a lid is easy to manufacture and easy to use.

2 1482312 148231

Den kendte beholder kan konstrueres på to måder. For det første kan den konstrueres således, at en part af skørtets kant altid er tilgængelig for manipulering, således at låget kan fjernes uden noget specielt indgreb, og for det andet kan beholderen konstrueres således, at en given længde af beskyttelsesorganet er udformet til at blive fjernet ved hjælp af en svækkelseslinie eller -linier. Der er imidlertid muligt for en eventuel køber af f.eks. madvarer i et supermarked at lirke låget op enten i beskyttelsesorganområdet eller i området uden for dette, således at han ved at løfte låget lidt kan kontrollere indholdet ved at lugte eller smage.The known container can be constructed in two ways. First, it can be constructed so that a portion of the skirt edge is always accessible for manipulation so that the lid can be removed without any special engagement, and second, the container can be constructed such that a given length of the protective member is designed to be removed using a weakening line or lines. However, it is possible for a possible buyer of e.g. food in a supermarket to pry open the lid either in the protective organ area or in the outside area so that by lifting the lid he can control the contents a little by smelling or tasting.

Det er også muligt at klemme beholderens sider og derved tilvejebringe et indre tryk, der er tilstrækkeligt til at trykket låget af. Det er i modstrid med alle hygiejniske krav, og den kendte konstruktion giver ikke en tilstrækkelig tydeligt markering af, om beholderen har været åbnet.It is also possible to squeeze the sides of the container thereby providing an internal pressure sufficient to depress the lid. This is contrary to all hygienic requirements and the known construction does not provide a sufficiently clear indication of whether the container has been opened.

Det er den foreliggende opfindelses formål at anvise en beholder roed låg og et dermed samvirkende beskyttelsesorgan i form af en låsering af den angivne art udformet således, at låseringen er udformet og styrket så meget, at det praktisk taget vil være umuligt at bøje mindre dele af denne tilstrækkeligt nedad til at lirke låget op uden at bryde låsen eller at efterlade synlige mærker efter åbningen, idet man samtidigt reducerer risikoen for, at låget glider af på grund af indre tryk, f.eks. frembragt ved, at nogen trykker på beholderens sider. Herved sikres også, at utilladelig adgang til beholderens indhold ved en delvis løftning af låget altid vil være åbenbar for en efterfølgende køber.SUMMARY OF THE INVENTION It is an object of the present invention to provide a container of red lid and a cooperating protective means in the form of a locking ring of the type specified so that the locking ring is designed and strengthened so that it will be practically impossible to bend smaller portions of this is sufficiently downward to pry the lid open without breaking the lock or leaving visible marks after opening, while at the same time reducing the risk of the lid slipping off due to internal pressure, e.g. generated by someone pressing the sides of the container. This also ensures that unauthorized access to the contents of the container by a partial lifting of the lid will always be obvious to a subsequent buyer.

Dette formål tilgodeses ved, at den indledningsvist omtalte beholder med låg ifølge opfindelsen er ejendommelig ved det i den kendetegnende del af krav 1 anførte. Stiverne og det tætte indgreb mellem skråfladerne sikrer mod en utilsigtet nedbøjning af låseringen, og det tætte indgreb medfører endvidere, at vulsterne kan gøres tyndere, hvorved lågets dia 148231 3 meter kan reduceres således, at der såvel til vulsterne som til låget som helhed spares materiale. På grund af det mindre godstværsnit og deraf følgende hurtigere køling og hærdning kan produktionshastigheden ved fremstillingen af beholderne sættes op. Ved at lågvæggens ydre flade passer tast mod sidevæggen radialt indad i forhold til vulsterne sikres, at der fra indersiden rettes et udadrettet modtryk til sikring af vulsternes indbyrdes indgreb. Under lågets påsætning kan den på grund af indgrebet mellem vulsterne let skråt udadrettede lågflange gribes af låseringens modsvarende skrå flade og styres videre ned til tæt indgreb mellem låseringens ribbe og lågflangen til dannelse af en yderligere tætning. I forhold til den ovenfor omtalte kendte teknik vanskeliggøres utilsigtet åbning af beholderen, især ved at der ikke er nogen afstand mellem lågflange og ribbe.This object is met by the fact that the initially mentioned container with a lid according to the invention is characterized by the features of the characterizing part of claim 1. The struts and the tight engagement between the bevelled surfaces ensure an unintentional bending of the locking ring, and the tight engagement also means that the beads can be thinned, thereby reducing the lid's slide 14 meters to save material for the beads as well as for the lid as a whole. . Due to the smaller freight cross section and consequent faster cooling and curing, the production rate of the containers can be set up. By fitting the outer wall of the lid wall key towards the side wall radially inward with respect to the beads, it is ensured that an outward counterpressure is directed from the inside to ensure the engagement of the beads. During the lid application, due to the engagement between the beads, the slightly oblique flange flange can be gripped by the corresponding oblique surface of the locking ring and further guided down to close engagement between the locking ring's rib and the lid flange to form a further seal. In relation to the prior art mentioned above, unintentional opening of the container is made difficult, especially because there is no distance between lid flange and rib.

Den foretrukne form for stiverne er angivet i den kendetegnende del af krav 2, hvilken form i forhold til sin styrke er den mest materialebesparende.The preferred form of the struts is given in the characterizing part of claim 2, which is the most material-saving in relation to its strength.

De i den kendetegnende del af krav 3 angivne støtter modvirker lågets udbulning på grund af indre tryk og medvirker derved til at hindre lågets afpresning og medvirker til yderligere at sikre lågvæggens modtryk.The supports set forth in the characterizing part of claim 3 counteract the bulge of the lid due to internal pressure and thereby help to prevent the lid's extortion and further help to secure the back wall of the lid.

Ved at den rundtgående lågvæg i overensstemmelse med det i den kendetegnende del af krav 4 anførte indbefatter en del, der er anbragt radialt ud for de indbyrdes indgribende skråflader af henholdsvis ribben og lågflangen, sikrer man, at beholdervæggen ved dette sted holdes trykket udad, hvorved indgrebet mellem vulsterne og skråfladerne yderligere sikres.By including the circumferential lid wall in accordance with the characterizing part of claim 4, a portion radially disposed adjacent the mutually engaged sloping surfaces of the rib and the lid flange respectively, ensures that the container wall at this location is kept pressed outwardly, whereby the engagement between the beads and the inclined surfaces is further ensured.

Da låg og beholder har en form, der kræver en nøjagtig ind-styring af låget på beholderen, er den i den kendetegnende del af krav 5 anførte udførelsesform fordelagtig ved, at låget ved hjælp af den anførte rundtgående indstyringsrib-be styres ind i korrekt stilling på beholderen for indgreb 4 148231 mellem lågflangen og låseringens rille.Since the lid and container have a mold which requires an accurate guide of the lid to the container, the embodiment according to claim 5 is advantageous in that the lid is guided into the correct position by means of the said circumferential guide rib. on the container for engagement 4 between the lid flange and the groove of the locking ring.

Forskellige udførelsesformer for den foreliggende opfindelses genstand er beskrevet nedenfor og vist på tegningen. På denne viser fig. 1 den Øvre del af en beholder ifølge opfindelsen dels •fra siden og dels i tværsnit, fig. 2 beholderen ifølge opfindelsen, set fraoven, fig. 3 i forstørret målestok et tværsnit langs linien 3-3 1 fig. 2 gennem en øvre del af beholderen vist i fig. 1 og 2 og med et derpå fastgjort låg, fig. 4 i forstørret målestok et tværsnit langs linien 4-4 1 fig. 2 gennem en øvre del af beholderen vist i fig. 1 og 2 og med et derpå fastgjort låg, fig. 5 i perspektiv en del af en ændret udførelsesform for beholderen med låg, og fig. 6 i forstørret målestok et tværsnit langs linien 6-6 i fig. 5 gennem en øvre del af beholderen vist i fig. 5 og med et derpå fastgjort låg.Various embodiments of the subject of the present invention are described below and shown in the drawing. In this, FIG. 1 shows the upper part of a container according to the invention, partly from the side and partly in cross section, FIG. 2 is a top view of the container according to the invention; FIG. 3 is an enlarged cross-sectional view taken along line 3-3 of FIG. 2 through an upper portion of the container shown in FIG. 1 and 2 and with a lid attached thereto; 4 is an enlarged cross-sectional view taken along line 4-4 of FIG. 2 through an upper portion of the container shown in FIG. 1 and 2 and with a lid attached thereto; 5 is a perspective view of part of a modified embodiment of the container with a lid; and FIG. 6 is an enlarged cross-sectional view taken along line 6-6 of FIG. 5 through an upper portion of the container shown in FIG. 5 and with a lid attached thereto.

På tegningen ses en beholder med et som låsering udformet tætningsorgan og et låg til brug med beholderen. En beholder af denne art kan benyttes til madvarer, maling og andre materialer, hvor det ønskes at sikre, at den endelige kunde eller bruger modtager beholderen i en sådan tilstand, at han personlig kan kontrollere, hvorvidt beholderen har Været åbnet eller ikke under transport, lagring og håndtering efter fyldning og lukning på fabrikken og før hans endelige åbning af beholderen.The drawing shows a container with a sealing ring designed as a locking ring and a lid for use with the container. A container of this kind can be used for food, paint and other materials where it is desired to ensure that the final customer or user receives the container in such a way that he can personally check whether the container has been opened or not during transport, storage and handling after filling and closing at the factory and before his final opening of the container.

Beholderen 1 har en ydre væg 2, der har en cylindrisk topende og spidser til henimod bunden 11. Ved toppen har væg- 14823 1 5 gen en ydre rundtgående vulst 3. På beholderens øvre del er der anbragt et låg 4, der har en ydre nedadragende, elastisk, rundtgående flange 5, der omslutter den øvre randdel af beholderen og har en indadrettet, rundtgående vulst 6, der som vist går i indgreb med den nedre del af beholdervulsten 3 og derved udgør et lukkeorgan, der sikrer, at låget lukker beholderen tæt. Under flangevulsten 6 er flangen 5 fortsat i en forlængelse, der ender i en nedre flangekant 11.The container 1 has an outer wall 2 which has a cylindrical top end and points towards the bottom 11. At the top, the wall has an outer circumferential bead 3. On the upper part of the container is a lid 4 which has an outer downwardly extending elastic circumferential flange 5 enclosing the upper rim portion of the container and having an inwardly extending circumferential bead 6 which, as shown, engages the lower portion of the container bead 3 thereby forming a closure member to ensure that the lid closes the container close. Below the flange bead 6, the flange 5 remains in an extension ending in a lower flange edge 11.

Under den nedre flangekant 11 bærer væggen 2 en ydre låsering 7, der i tværsnit er L- eller J-formet, og som fungerer som en beskyttelse for den nedadragende lågflange 5. Låseringen7 har en udadrettet ringformet hylde 8, der står i det væsentlige vinkelret på væggen 2 og er udformet 1 ét med denne og i ét med en opadforløbende, ringformet ribbe 9, der er i det væsentlige parallel med væggen 2 og forløber opad forbi og rundt om den nedre del af den nedadragende lågflange 5, således at dennes nedre del er dækket.Below the lower flange edge 11, the wall 2 carries an outer locking ring 7 which is L- or J-shaped in cross-section and which serves as a protection for the downwardly extending flange 5. The locking ring 7 has an outwardly annular shelf 8 which is substantially perpendicular on the wall 2 and formed one integrally therewith and one with an upwardly extending annular rib 9 which is substantially parallel to the wall 2 extending upwardly and around the lower portion of the downwardly extending flange 5 so that its lower part is covered.

Låseringen 7 er langs en første del af hylden 8's omkredslængde forbundet til beholdervæggen 2 ved hjælp af en svækningszone 12, der er formet af med mellemrum anbragte forbindelser 13 mellem hylden 8 og beholdervæggen 2, se fig.The locking ring 7 is connected along a first part of the circumferential length of the shelf 8 to the container wall 2 by means of a weakening zone 12 formed by intermittent connections 13 between the shelf 8 and the container wall 2, see fig.

2 og 3. Denne svækningslinie kan til specielle formål forløbe rundt om beholderen langs hele låseringen 7 1 s omkredslængde, eller den behøver blot at forløbe langs en forholdsvis kort del af omkredslængden. For store beholdere kan denne første del udgøre f.eks. en 1/8 af hele omkredsen eller mindre og for mindre beholdere være f.eks. en 1/4 af hele omkredsen eller mere. Man har opdaget, at med mindre disse forbindelser er forstærkede, kan en fingernem person være i stand til forsigtigt at bøje hylden 8 og den dermed i ét formede ribbe 9 uden at bryde forbindelserne 13, hvorved han bliver i stand til at lirke låget fra beholderen. Han kan også ganske enkelt klemme den fleksible beholdervægs sider og frembringe et tilstrækkeligt tryk i beholderen, således at låget presses af, og han kan lugte 6 148231 til eller tage lidt fra indholdet. Især i forbindelse med madvarer er dette meget uhygiejnisk og imod bestemmelserne for salg af madvarer fra supermarkeder. Til at modvirke dette har hver forbindelse ifølge opfindelsen en forstærkende nedadragende tand 14, se fig. 3. Hver tand har en overflade 15, der vender mod, er parallel med og anbragt med en lille afstand fra væggen 2. Dette hindrer en drejning af låseringen om tændernes indgrebspunkter, men muliggør en nedadrettet forskydning af låseringen 7 langs lågvæggen 2, når der .bevidst af slutkøberen eller brugeren trykkes mod ribben 9 for brydning af forbindelserne 13. Først derpå får man adgang til flangen 5's nedre kant til aftagning af låget 4 fra beholderen 1. Som vist i fig. 1 kan også den resterende eller anden del af låseringens omkredslængde være forstærket for at forhindre rapseri. Til dette formål indbefatter låseringen 7' s anden del ifølge opfindelsen et antal tynde stivere 17 med omtrent den samme tykkelse som væggen 2 og hylden 8. Hver stiver 17 er udformet i ét med hylden 8 og væggen 2 og rager nedad fra hylden 8. Stiverne 17 kan placeres langs den ydre omkreds med en indbyrdes afstand på mellem 1 og 6 cm, fortrinsvis mellem 1 og 3 cm og fortrinsvis 2 cm, idet den reelt valgte afstand afhænger af den valgte materialeart og hylden 8's og væggen 2's tykkelse.2 and 3. This weakening line may, for special purposes, extend around the container along the entire circumferential length of the locking ring 7, or it may only extend along a relatively short portion of the circumferential length. For large containers, this first part may constitute e.g. a 1/8 of the entire circumference or smaller and for smaller containers, e.g. one-fourth of the entire circumference or more. It has been discovered that unless these connections are reinforced, a dexterous person may be able to gently bend the shelf 8 and the thus-formed rib 9 without breaking the connections 13, thereby being able to pry the lid from the container . He can also simply squeeze the sides of the flexible container wall and produce a sufficient pressure in the container so that the lid is pressed off and he can smell or take some of the contents off. Especially in relation to food products this is very unhygienic and against the provisions for selling food products from supermarkets. To counteract this, each compound of the invention has a reinforcing downward tooth 14, see FIG. 3. Each tooth has a facing surface 15 parallel to and spaced a small distance from the wall 2. This prevents rotation of the locking ring about the points of engagement of the teeth, but allows a downward displacement of the locking ring 7 along the lid wall 2 when consciously pressed by the end buyer or user towards the rib 9 to break the connections 13. First, the lower edge of the flange 5 is accessed for removing the lid 4 from the container 1. As shown in FIG. 1, the remaining or other portion of the locking ring circumferential length may also be reinforced to prevent tearing. For this purpose, the second part of the locking ring 7 according to the invention includes a plurality of thin struts 17 having approximately the same thickness as the wall 2 and the shelf 8. Each strut 17 is formed integrally with the shelf 8 and the wall 2 and protrudes downwards from the shelf 8. The struts 17 can be positioned along the outer circumference with a spacing of between 1 and 6 cm, preferably between 1 and 3 cm and preferably 2 cm, the actual distance selected depending on the material type chosen and the thickness of the shelf 8 and wall 2.

I den i fig. 5 og 6 viste udførelsesform har låseringen en nedadrettet, lille tredje del inden for den første svækkede del i form af en del 10, der frilægger lågflangen 5's nedre kant 11, således at denne kant er tilgængelig for manipulering inden for den nedadrettede del 10, hvorved det f.eks. ved hjælp af et værktøj, såsom en mønt, skruetrækker eller tilsvarende bliver muligt at trykke på lågflangen 5’s nedre, frilagte kant 11 og på delen 10's øvre kant 18, således at låseringen bevidst kan brydes og låget 4 løsnes og aftages.In the embodiment shown in FIG. 5 and 6, the locking ring has a downwardly small third portion within the first attenuated portion in the form of a portion 10 which exposes the lower edge 11 of the lid flange 5 so that this edge is available for manipulation within the downwardly extending portion 10, it for example. by means of a tool, such as a coin, screwdriver or the like, it is possible to press on the lower, exposed edge 11 of the lid flange 5 and on the upper edge 18 of the part 10 so that the locking ring can be deliberately broken and the lid 4 is loosened and removed.

Da hylden 8 forløber ubrudt langs den nedadbøjede del 10's nedre kant, vil lågflangen 5 være beskyttet imod tilfældig 7 148231 opadrettet tryk og stød og derved være sikret mod utilsigtet løsning af låget.As the shelf 8 extends uninterrupted along the lower edge of the downwardly bent portion 10, the lid flange 5 will be protected against random upward pressure and shock, thereby being secured against accidental release of the lid.

Som vist i fig. 2 kan ribben 9 i en alternativ udførelsesform inden for den første del af låseringen 7 indbefatte et håndtag 19, ved hjælp af hvilket låseringen 7 kan trækkes væk fra beholdervæggen, således at afrivning sker langs mindst en del af svækningszonen 12, således at mindst en del af lågflangen 5's nedre kant 11 bliver tilgængelig for manipulering til aftagning af låget.As shown in FIG. 2, in an alternative embodiment within the first portion of the locking ring 7, the rib 9 may include a handle 19 by means of which the locking ring 7 may be pulled away from the container wall, so that tearing occurs along at least part of the weakening zone 12, so that at least a portion of the lower edge 11 of the lid flange 5 becomes available for manipulation to remove the lid.

Låget 4 har en indvendig fra beholderen l's kant nedadhængende, rundtgåen-de lågvæg 20, der passer tæt ned beholdervæggen 2' s indre overflade og bærer en forsænket del af låget 4. Ragende ned fra den nedre overflade af låget 4's forsænkede del, i ét med denne og anbragt fra beholdervæggen 2’s indre overflade med en afstand, der i det væsentlige er lig med tykkelsen af lågvæggen 2, findes en rundtgående flange 21 med en nedre, afrundet spids ende 22. Som vist i fig. 4 er et antal og mindst tre støtter 23 fastgjort til den indre side af lågvæggen 20 og er udformet i ét med denne til bæring af de nedre ender 22' af flangerne 21' af et låg 4', der for stabling er anbragt på et nedre låg 4. Herved bliver det muligt at pakke, forsende og lagre lågene 4, 4' i stablet form forud for,at et låg 4 påsættes en beholder 1. En sådan stabling er angivet ved punktstreg i fig. 4, idet flere end to låg kan stables oven på hinanden. Støtterne 23's højde plus højden af den rundtgående, indre flange 22 er så stor, at den nedre kant 11' af den ydre flange 51 af et øvre låg 4! i stablet tilstand er placeret et stykke fra den øverste overflade af et nedre låg 4 tilstrækkelig til at indsætte et ikke vist griberedskab til at adskille og løfte de enkelte låg til en ikke vist station for lukning af beholderne. Støtternes højde er ca. halvdelen af lågvæggen 20’s højde, således at den indre 14823 1 8 flange 21 sikkert styret og holder lågene under stabling.The lid 4 has an inner, downwardly-extending, circumferential lid wall 20 of the container 1, which fits snugly down the inner surface of the container wall 2 and carries a recessed portion of the lid 4. protruding from the lower surface of the recessed portion of the lid 4 thereto and disposed from the inner surface of the container wall 2 at a distance substantially equal to the thickness of the lid wall 2, a circumferential flange 21 is provided with a lower, rounded tip end 22. As shown in FIG. 4, a plurality of at least three supports 23 are secured to the inner side of the lid wall 20 and are formed integrally therewith for supporting the lower ends 22 'of the flanges 21' of a lid 4 'which is arranged on a lower one for stacking. lid 4. Hereby it becomes possible to pack, ship and store the lids 4, 4 'in a stacked form before a lid 4 is applied to a container 1. Such a stacking is indicated by a dash in FIG. 4, where more than two lids can be stacked on top of one another. The height of the supports 23 plus the height of the circumferential inner flange 22 is so large that the lower edge 11 'of the outer flange 51 of an upper lid 4! in a stacked position, a distance from the upper surface of a lower lid 4 is sufficient to insert a gripper tool not shown to separate and lift the individual lids to a not shown station for closing the containers. The height of the supports is approx. half of the lid wall 20's height, so that the inner flange 21 is safely guided and keeps the lids under stacking.

Ved denne konstruktion sikres det også, at den indre flange 21 sikkert styrer låget 4 for korrekt placering på beholderen l's kant unden risiko for, at den ydre flange 5's nedre kant 11 rammer og beskadiger låseringen 7, såfremt låget blev sat skævt ned på beholderen. Et låg som vist i fig. 3-5 sikrer, at utilladt adgang til beholderens indhold ved at trykke dennes vægge bliver umuligt takket være lågets U-for-mede kantdel og især takket være, at lågvæggen 20 rager længere ned end det nederste berøringspunkt mellem dén ydre, nedad-rettede flange 5 og beholderen nedenfor vulsterne 3, 6.In this construction, it is also ensured that the inner flange 21 securely guides the lid 4 for correct placement on the edge of the container 1 without the risk that the lower edge 11 of the outer flange 5 strikes and damages the locking ring 7 if the lid is skewed onto the container. A lid as shown in FIG. 3-5 ensures that unauthorized access to the contents of the container by pushing its walls becomes impossible thanks to the U-median edge portion of the lid and in particular thanks to the lid wall 20 extending further than the lower contact point between the outer, downward flange 5 and the container below the beads 3, 6.

I den foretrukne udførelsesform har låget 4's nedadrettede flange 5 en ydre afskrået, langs omkredsen forløbende flade 24 til tilvejebringelse af en i det væsentlige keglestub-formet nedre del af låget med sin største diameter ved eller tilnærmelsesvis ved niveauet for flangevulsten 6's nedre del og ved den mindste diameter ved kanten 11. Hældningen af denne skråflade 24 er identisk med hældningen af den indadven-dende overflade 9a af låseringens ribbe 9, når låget er sin endelige stilling på beholderen, idet låseringen er formet således, at disse overflader vil få den samme afstand fra beholdervæggen 2. Dette sikrer et ydre, konisk tætningsfladeindgreb, der gør det praktisk taget umuligt at få adgang til lågkanten for åbning af beholderen uden at bryde låseringen. Dette sikrer endvidere, at den nedadrettede flange 5 gribes ved hjælp af de indbyrdes indgribende overflader og presses korrekt på plads henimod beholderen under lågets påsætning. I denne forbindelse er det fordelagtigt,at tanden 14*s overflade 15 er anbragt en afstand fra beholdervæggens ydre flade tilstrækkeligt til at tillade en lille udadrettet bøjning af låseringen i området for svæknings-zonen. Til dette formål ligger denne afstand mellem 0,5 og 5 mm, fortrinsvis mellem 1 og 3 mm, idet den normalt foretrukne afstand er 1,5 mm. Den i det aktuelle tilfælde valgte afstand afhænger af beholderens størrelse, den valg-In the preferred embodiment, the downwardly flange 5 of the lid 4 has an outer beveled surface 24 extending along the circumference to provide a substantially cone-shaped lower portion of the lid with its largest diameter at or approximately the level of the flange bead 6 and at the lower portion thereof. minimum inclination at the edge 11. The inclination of this inclined surface 24 is identical to the inclination of the inwardly facing surface 9a of the locking ring rib 9 when the lid is in its final position on the container, the locking ring being shaped such that these surfaces will have the same distance from the container wall 2. This ensures an outer, tapered sealing surface engagement which makes it practically impossible to access the lid edge for opening the container without breaking the locking ring. This further ensures that the downwardly directed flange 5 is gripped by means of the intervening surfaces and is properly pressed into place against the container during the lid application. In this connection, it is advantageous for the surface 15 of the tooth 14 * to be spaced from the outer surface of the container wall sufficiently to allow a small outward bending of the locking ring in the area of the weakening zone. For this purpose, this distance is between 0.5 and 5 mm, preferably between 1 and 3 mm, with the normally preferred distance being 1.5 mm. The distance selected in the present case depends on the size of the container, the

Claims

148231 tea material type and wall thickness. The elasticity of the struts 17 should also be sufficient to enable this intentional / outward bending. A further advantage of using a lid of the one shown in FIG. 3 to 5, when using a substantially tapered container, these may be designed in such a way that they can be stacked with their bottom ends in the recessed portion of the lid. This is especially advantageous during transport and when stacking the containers for sale in a free space in a supermarket. Although the container of the drawing is shown and described as a substantially tapered container with a circular circumference, it will be apparent to one skilled in the art that the container may also be cylindrical and have a circumferential wall extending from the orifice at the bead 3 to the bottom of the container. The bottom can also be viewed from above in an oval, a polygonal or substantially rectangular shape or any other suitable shape. Claims.

A container with a lid (4), said container having a circumferential sidewall (2) and open top, an outer circumferential bead (3) on the sidewall at the open top, a plastic lid (4) having a circumferentially formed one inner lid wall (20) having an outwardly facing surface defining the circumference of a recessed lid area, and a downwardly extending circumferential outer flange (5) with an inner circumferential bead (6) capable of sealingly engaging beneath the lower portion of the container. bead (3), and with a downward extension below its bead (6), said container having an integrally formed outer circumferential L-shaped locking ring (7) with a lower shelf (8) below the lid flange (5) and a upward circumferential rib (9) surrounding the downwardly extending circumferential extension of the lid flange (5), and connecting bridges (13) located on a limited portion of the spaced region, forming a weakening zone (12) on the restricted portion of the circumference connects the shelf (7) of the locking ring (7) to the side wall (2), said connecting bridges having downwardly directed reinforcing means (14) with a side wall (2) facing parallel to and a short distance from said extending surface (15) substantially obstructing within said weakening region the locking ring (7), but allows upward displacement by breaking the connecting bridges (13), characterized in that on the remaining part of the locking ring (7) there are a plurality of shear-preventing tooth-shaped struts (17). ) that the downwardly extending extension of the cover flange (5) has an outer inclined surface (24) which slopes towards its lower end and that the rib (9) of the locking ring (7) has a complementary inwardly inclined inclined surface (9a) capable of engage closely with the inclined surface of the cover flange (24) and the outwardly facing surface of the cover wall (20) at least radially adjacent to the beads (3, 6) ends close to the inner surface of the side wall (2).

Lid with lid according to claim 1, characterized in that the struts (17) extend from the lower surface of the shelf (8) to the side wall (2) and preferably have a triangular shape.

A lid container according to claims 1 and / or 2, characterized in that, in combination with the radially inward surface of the lid wall (20) and the recessed lid area, the lower constraint of the beads (3, 6) and The downwardly extending extension of the cover flange (5) is formed with spaced supports (23).

A container with a lid according to claim 1, 2 or 3, characterized in that the transition area of the circumferential lid wall (20) to the recessed lid area is located radially within and at the height of the mutually engaging inclined surfaces (9a, 24) of the ribs ( 9) and the lid flange (5).