DK160401B

DK160401B - THICKWALLED PLASTIC CONTAINER, NECESSARY STABLE DRINKER

Info

Publication number: DK160401B
Application number: DK47785A
Authority: DK
Inventors: Hatto Hartnagel; Michael Schuba
Original assignee: Polarcup Gmbh
Priority date: 1984-02-24
Filing date: 1985-02-01
Publication date: 1991-03-11
Also published as: SE8500685D0; FR2560154B1; DE3418849C2; CH667058A5; DK47785A; FR2560154A1; DK47785D0; GB2157153A; GB2157153B; SE460516B; DE3418849A1; GB8504779D0; DK160401C; NL8500353A; SE8500685L

Description

iin

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Opfindelsen angår en tyndvægget plastbeholder af den i krav l's indledning angivne art.The invention relates to a thin-walled plastic container of the kind specified in the preamble of claim 1.

En beholder af den ovenfor nævnte art kendes fra DK frem-5 læggelsesskrift nr. 142.834.A container of the kind mentioned above is known from DK Publication No. 142,834.

Det er ved beholdere af den indledningsvis nævnte art af stor betydning, at størrelsen af den kraft, som holder beholderne sammen i stablen og som skal overvindes, når de enkelte beholdere udtages fra denne, ligger indenfor 10 visse grænser, dels fordi beholderstablen på den ene side skal kunne modstå visse belastninger under håndteringen, dels for at den kraft, som i f.eks. en udleveringsautomat skal udøves for at udtage de enkelte beholdere fra stablen, ikke er så stor, at den kan skabe problemer, 15 f.eks. når en beholder skal udtages af udleveringsautomatens automatisk fungerende gribeorganer. De hidtidige forsøg i denne retning har hidtil ikke givet fuldt ud tilfredsstillende resultater, og det er derfor opfindelsens formål at anvise udformningen af en beholder af den 20 indledningsvis nævnte art, hvor den nævnte sammenholdningskraft i stablen ligger inden for i det mindste nogenlunde veldefinerede grænser, selv om beholderne ikke er fremstillet med den allerhøjeste præcision, og dette formål opnås ved at udforme beholderen som angivet i krav 25 l's kendetegnende del.In the case of containers of the type mentioned above, it is of great importance that the amount of force holding the containers together in the stack and which must be overcome when the individual containers are removed from it is within 10 certain limits, partly because the container stack on one side must be able to withstand certain loads during handling, partly in order that the force, as in e.g. a dispenser must be exerted to remove the individual containers from the stack, is not so large as to cause problems, e.g. when a container is to be removed by the dispensing apparatus of the dispenser automatically operating. The attempts so far in this direction have not so far yielded fully satisfactory results, and it is therefore the object of the invention to provide the design of a container of the kind initially mentioned, wherein said cohesive force in the stack is within at least fairly well defined limits, although the containers are not manufactured with the highest precision and this purpose is achieved by designing the container as set forth in the characterizing portion of claim 25 l.

Ved denne udformning opnås, at de hvælvede fremspring danner fjedrende friktionsorganer, hvis fjederkarakteristik er en sådan, at den kraft, der forårsager friktionskraften, og dermed selve friktionskraften kun varie-30 rer i forholdsvis ringe grad med variationer i den fjedrende indbuling af de hvælvede fremspring.In this embodiment, it is obtained that the vaulted projections form resilient friction members whose spring characteristic is such that the force causing the frictional force, and thus the frictional force itself, varies only to a relatively small extent with variations in the resilient bulge of the vaulted projections. .

Hensigtsmæssige udførelsesformer for beholderen ifølge opfindelsen, hvis virkninger - i den udstrækning, de ikke er selv-indlysende - er nærmere forklaret i den efterfølSuitable embodiments of the container according to the invention, the effects of which - to the extent that they are not self-evident - are explained in more detail below.

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2 gende specielle del af nærværende beskrivelse, er angivet i krav 2-10.2 of the specific description of this specification is set out in claims 2-10.

Opfindelsen skal i det følgende forklares nærmere under 5 henvisning til de på tegningen viste udførelseseksempler på en beholder ifølge opfindelsen og dele deraf, idet fig. 1 viser tre i hinanden indsatte drikkebægre, idet de to ydre bægre er vist i snit og det inderste bæger set fra siden, 10 fig. 2 i større målestok viser det i fig. 1 med "2" afmærkede område, fig. 3 er et funktionsdiagram for holderingens kalotformede fremspring, fig. 4 i større målestok viser det i fig. 1 med "4" vi-15 ste område, fig. 5 viser et snit gennem to i hinanden indsatte drikkebægre ifølge et andet udførelseseksempel på opfindelsen, og fig. 6 er et snit gennem to i hinanden indsatte drikke-20 bægre ifølge et tredje udførelseseksempel på opfindelsen.BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail below with reference to the exemplary embodiments of a container according to the invention and parts thereof shown in the drawing. 1 shows three interposed drinking cups, the two outer cups being shown in section and the inner cup viewed from the side; FIG. 2 on a larger scale, as shown in FIG. 1 with "2" marked area; FIG. Fig. 3 is a functional diagram of the hollow-shaped projections of the holder; 4 on a larger scale shows that in FIG. 1 with the fourth region of "4"; FIG. 5 shows a section through two interconnected drinking cups according to another embodiment of the invention; and FIG. 6 is a section through two interconnected beverage cups according to a third embodiment of the invention.

I det viste udførelseseksempel har drikkebægrene 10 et i et stykke udformet svøb 11, der er opdelt i fire afsnit, og som for oven overgår i en ombertlet læbekant 12 og for neden i bægerets bund 13. Det nederste afsnit 14 af svøbet 11 strækker 25 sig ned fra stableringen 15 og svarer i alt væsentligt til optagekammeret for fyldstoffet, f.eks. pulverkaffe. Oven for stableringen 15 findes en holdering 16 med en øvre ringdel 3In the illustrated embodiment, the drinking cups 10 have a four-sectioned wrapper 11 which is divided into four sections, and which above, transitions into an inverted lip edge 12 and below the bottom of the cup 13. The lower portion 14 of the wrapper 11 extends 25 down from the stacking 15 and substantially corresponds to the fill chamber of the filler, e.g. instant coffee. Above the stacking 15 is a holding ring 16 with an upper ring part 3

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16a og en nedre ringdel 16b. Over holderingen 16 fortsætter bægeret 10 i det øverste afsnit 17 i svøbet 11, hvilket afsnit optager en væsentlig del af bægerets højde og er udformet med rundtgående, stempelring-lignende ribber 18.16a and a lower ring portion 16b. Above the retaining ring 16, the cup 10 continues in the upper portion 17 of the scoop 11, which portion occupies a substantial portion of the height of the cup and is formed with circumferential, piston ring-like ribs 18.

5 I den til holderingen 16 hørende øvre ringdel 16a er der udformet en rundtgående række af kalotformede fremspring 19, som rager ind i bægeret. I den til holderingen 16 høreride nedre ringdel 16b er der udformet kalotformede fremspring 20, der rager udad fra bægeret. Som det yderligere fremgår af 10 fig. 1, fortsætter den til holderingen 16 hørende nedre ringdel 16b i sin underkant i en Øvre stableskulder 21, mens en nedre stableskulder 22 er dannet mellem stableringen 15 og det nederste afsnit 14 i svøbet 11. Tæt ved den nedre stableskulder 22 er der i det nederste afsnit 14 af svøbet 11 15 udformet en centreringsring 23.5 In the upper ring portion 16a of the retaining ring 16, a circumferential row of caliper-shaped projections 19 are formed which project into the cup. In the lower annular portion 16b of the retaining ring 16, callous projections 20 are formed which project outwardly from the beaker. As further shown in FIG. 1, the lower ring portion 16b of the retaining ring 16 continues at its lower edge in an upper stack shoulder 21, while a lower stack shoulder 22 is formed between the stacking 15 and the lower section 14 of the scoop 11. Close to the lower stack shoulder 22 there is in the lower section 14 of the shell 11 15 forms a centering ring 23.

Som det især fremgår af figur 2 og 3, er de kalotformede fremspring 19, der er udformet i den øvre ringdel 16a og rager indad i bægeret, anbragt i en kreds i ensartede indbyrdes afstande A19 og udformet med en diameter D^g og en krum-20 ningsradius R^g. De kalotformede fremspring 20 i den nedre ringdel 16 ligger hele vejen rundt med ens indbyrdes afstande A20 og har en diameter og en krumningsradius R2Q. Herved er krumningsradien R^g for de kalotformede fremspring 19 større end krumningsradien R20 for de kalotformede fremspring 20.As is particularly apparent from Figures 2 and 3, the caliphate projections 19 formed in the upper annular portion 16a and projecting inwardly into the beaker are disposed in a circle at uniform spacing A19 and formed with a diameter D -20 radius of radius R ^ g. The caliper-shaped projections 20 in the lower annular portion 16 lie all the way around with equal spacing A20 and have a diameter and a radius of curvature R2Q. Hereby, the radius of curvature R ^g of the caliphate projections 19 is greater than the radius of curvature R20 of the caliphate projections 20.

25 Diameteren D^g af de kalotformede fremspring 19 er større end diameteren D2q af de kalotformede fremspring 20. Endelig er den indbyrdes afstand A^g mellem de kalotformede fremspring 19 betydeligt mindre end den indbyrdes afstand A^ mellem de kalotformede fremspring 20. Som det fremgår af fig. 2, er den 30 aksiale afstand mellem den øvre stableskulder 21 og den nedre stableskulder 22, der bestemmer bredden af stableringen 15, afstemt således i forhold til bredden af holderingen 16 og bredden af den øvre ringdel 16a og den nedre ringdel 16b, at når de to bægre 10a og 10b er stukket helt ind i hinanden, dvs.The diameter D Dg of the caliper-shaped projections 19 is larger than the diameter D₂q of the calorific-shaped projections 20. Finally, the spacing A ^g between the calorific-shaped projections 19 is considerably smaller than the mutual distance A ^ between the calorific-shaped projections 20. As shown in FIG. 2, the axial distance between the upper stack shoulder 21 and the lower stack shoulder 22, which determines the width of the stacking ring 15, is so adjusted to the width of the holding ring 16 and the width of the upper ring portion 16a and the lower ring portion 16b that two jugs 10a and 10b are fully inserted, i.e.

35 når den nedre stableskulder 22 på det indre bæger 10b ligger an imod den øvre stableskulder 21 på det ydre bæger 10a, lig- 435 when the lower stack shoulder 22 of the inner cup 10b abuts the upper stack shoulder 21 of the outer cup 10a,

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ger den nedre ringdel 16b i den til det indre bæger 10b hørende holdering over for den øvre ringformede del i holderanden på det ydre bæger 10a. Nemlig på en sådan måde, at krumnings-midtpunkterne og M2Q for de over for hinanden beliggende, 5 kalotformede fremspring 19 og 20 i alt væsentligt ligger i et normalplan på bægeraksen.provides the lower annular portion 16b of the retainer associated with the inner beaker 10b with the upper annular portion of the holder edge of the outer beaker 10a. Namely, in such a way that the centers of curvature and M2Q of the opposite, 5-barrel projections 19 and 20 are substantially in a normal plane on the beaker axis.

Som det fremgår af fig. 2 trykkes derved de udadragende kalotf orméde fremspring 20 i den nedre ringdel 16b i det indre bæger ind i de indadragende kalotformede fremspring 19 i den 10 øvre ringdel 16a i holderingen 16 i det ydre bæger 10a.As shown in FIG. 2, the outwardly projecting caliphate projections 20 in the lower annular portion 16b of the inner cup are pressed into the inwardly projecting calibrated projections 19 of the upper annular portion 16a of the retaining ring 16 of the outer cup 10a.

Som det fremgår af fig. 3 bevirker de forskellige indbyrdes afstande Aig og A2g mellem de kalotformede fremspring 19 hhv. de kalotformede fremspring 20, at der optræder forskellige indgrebsforhold mellem de kalotformede fremspring 19 og 15 de kalotformede fremspring 20. I det i fig. 3 viste eksempel er forholdet mellem afstandene A^g og afstandene A2Q et sådant, at der over for fem mindre kalotformede fremspring 20 står seks større kalotformede fremspring 19. Herved kan det ske, at et mindre kalotformet fremspring 20 står i samtidigt 20 indgreb med to større kalotformede fremspring 19 eller griber ind mellem to større kalotformede fremspring 19.As shown in FIG. 3 causes the different spacings Aig and A2g between the caliper-shaped projections 19 and 19, respectively. Figs. 20 and 15 show that different engagement ratios occur between the tubular projections 19 and 15 of the pot-shaped projections 20. In the embodiment shown in FIG. 3, the relationship between the distances A ^g and the distances A2Q is such that five smaller caliper-shaped projections 20 are faced with six larger calibrated-projections 19. Hereby, it is possible that a smaller calibrated-projection 20 engages at the same time with two larger baffle projections 19 or intervene between two larger baffle projections 19.

Som det fremgår af fig. 4, er de på stempelringlignende måde udadragende føringsringe 18 udformet på en sådan måde, at disse føringsringe 18 på et indre bæger 10b lige netop berø-25 rer indersiden af et uden for liggende bæger 10a. Herved opnås ved aftrækning af det yderste bæger 10a fra bægerstablen, at det yderste bæger 10a styres med sin inderside glidende i-mod disse føringsringe 18, således at de kalotformede fremspring 19 og 20 skilles fra hinanden under en i hovedsagen 30 aksialrettet bevægelse.As shown in FIG. 4, the piston ring-like protrusion guide rings 18 are formed in such a way that these guide rings 18 on an inner beaker 10b just touch the inside of an outside beaker 10a. Hereby, by pulling off the outer beaker 10a from the beaker stack, the outer beaker 10a is guided with its inside sliding towards these guide rings 18, so that the callous projections 19 and 20 are separated from each other during a generally axially directed movement.

Ved det i fig. 5 viste udførelseseksempel består holderingen 16, som gennem den øvre stableskulder 21 er forbundet med stableringen 15, af en i alt væsentligt glat, cylindrisk nedre ringdel 16b og en med indadragende kalotformede fremspring 35 20 forsynet øvre ringdel 16a. Mellem de to ringdele 16a og 5In the embodiment shown in FIG. 5, the retaining ring 16, which is connected to the stacking ring 15 by the upper stack shoulder 21, consists of a substantially smooth cylindrical lower ring part 16b and an inner ring part 16a provided with an inwardly projecting calotte-shaped projection 35 20. Between the two ring portions 16a and 5

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16b er der ved hjælp af mellemskuldre indskudt en afstivningsring 16c, som rager ind i bægeret. Afstivningsringen 16 kan imidlertid også være således udformet, at den i samvirke med den ydre svøbvæg på et yderligere bæger, der er indstukket i 5 disse to bægre, danner en ekstra holdering.16b, there is inserted by means of middle shoulders a stiffening ring 16c which protrudes into the cup. However, the stiffening ring 16 may also be designed so that, in cooperation with the outer wrapping wall of an additional cup inserted into these two cups, it provides an additional holding.

Svarende til den i fig. 2 viste udførelsesform for bægeret er også i det i fig. 5 viste eksempel den aksiale afstand mellem den øvre stableskulder 21 og den nedre stableskulder 22, der bestemmer bredden af stableringen 15, således afstemt på bred-10 den af holderingen 16 og bredderne af den øvre ringdel 16a, den ved hjælp af skuldre i bægervæggen indskudte afstivningsring 16c og den nedre ringdel 16b, at når de to bægre 10a og 10b er stukket helt ind i hinanden, dvs. når den nedre stableskulder 22 på det indre bæger 10b ligger an imod den øvre 15 stableskulder 21 på det ydre bæger 10a, vil den nedre og før indstikningen i hovedsagen glatte ringdel 16b i holderingen 16 i det indre bæger 10b stå over for de imod det indre bæger 10b rettede, kalotformede fremspring 20 i holderingen 16 i det ydre bæger 10a. Herved trykkes de indadragende kalotfor-20 mede fremspring 20 i den øvre ringdel 16b i det ydre bæger 10a under elastisk deformation ind i den uden fremspring udformede nedre ringdel 16b i det indre bæger 10b. På grund af den større styrke i de kalotformede fremspring 20 sker der derved en større eller mindre elastisk deformering af den 25 glatte nedre ringdel 16b i det indre bæger 10b,så at der ved den følgende adskillelse af beholderne kan fremkomme en lille indadrettet indbulning 24. Denne har imidlertid ikke nogen forringende virkning på bægerets samlede styrke, men medfører fordelene ved fast sammenhold og ved en rykfri adskillel-30 se af de sammenstablede bægre.Similar to the one shown in FIG. 2, the embodiment of the cup shown in FIG. 5 shows the axial distance between the upper stack shoulder 21 and the lower stack shoulder 22, which determines the width of the stacking ring 15, thus aligned with the width of the retaining ring 16 and the widths of the upper annular portion 16a, which is inserted by means of shoulders into the cup wall. stiffening ring 16c and lower ring portion 16b, that when the two jaws 10a and 10b are fully inserted together, i. when the lower stack shoulder 22 of the inner beaker 10b abuts the upper stack shoulder 21 of the outer beaker 10a, the lower and prior to insertion generally smooth ring portion 16b of the retaining ring 16 of the inner beaker 10b will face those of the inner beaker 10b aligns, calibrated projections 20 in the retainer ring 16 in the outer beaker 10a. Hereby, the inwardly projecting caliper-shaped projections 20 in the upper annular portion 16b of the outer beaker 10a are pressed under elastic deformation into the unprocessed lower annular portion 16b of the inner beaker 10b. Due to the greater strength of the calotte-shaped projections 20, there is thus a greater or less elastic deformation of the 25 smooth lower annular portion 16b in the inner cup 10b, so that a small inward bulging 24 can be formed at the subsequent separation of the containers. However, this does not have a detrimental effect on the overall strength of the beaker, but brings about the advantages of solid holding and of a non-stripping separation of the stacked jugs.

Ved det i fig. 6 viste udførelseseksempel har bægrene en noget mindre diameter end de i fig. 5 viste, idet den ved hjælp af skuldre indskudte afstivningsring 16c rager ud ad. Til yderligere forskel fra den i fig. 5 viste beholder 35 er der i den nedre ringdel 16b i holderingen 16 udformet udadrettede kalotformede fremspring 20, som heri samvirke med den i hovedsagen glatte øvre ringdel 16a i det ydre bæger 10a sikrer et fast sammenhold mellem de stablede bægre og en ryk-In the embodiment shown in FIG. 6, the cups have a somewhat smaller diameter than those of FIG. 5, the strut ring 16c inserted by shoulders protrudes. For a further difference from the one shown in FIG. 5, in the lower annular portion 16b of the retaining ring 16, outwardly projected caliper-shaped projections 20 are formed which cooperate herein with the generally smooth upper annular portion 16a of the outer cup 10a to ensure a firm relationship between the stacked cups and a jerk.

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e fri frigøring af de enkelte bægre. Imidlertid er det med hensyn til bredden af stableringen 15 i forhold til bredden af holderingen 16, samt afstemning af bredderne på ringdelene 16a og 16b og den indskudte afstivningsring 16c indbyrdes, 5 nødvendigt at opfylde de samme betingelser som ved det i fig.e free release of individual cups. However, with respect to the width of the stacking 15 relative to the width of the retaining ring 16, as well as the matching of the widths of the ring parts 16a and 16b and the interposed stiffening ring 16c among themselves, 5 it is necessary to meet the same conditions as in the one shown in FIG.

5 viste bæger.5.

Claims

A thin-walled container (10) of plastic, preferably in a cup form, the side wall (11) extending from the bottom (13) 5 to the upper orifice (12) and formed with an opening (15) with an upper (21) and a lower (22) stacking shoulder and a retaining ring (16) having two superimposed annular portions (16a, 16b), the stacking (15) and the retaining ring (16) being dimensioned and disposed such that a desired number of containers (10) can be pushed together into a rod-like stack and again disassembled, while at the same time creating spaces for storing measured amounts of a filling between the bottoms (13) of the containers (10) that follow one another in the stack; 15, such as powder coffee or the like, characterized in that the upper annular portion (16a) of the retainer (16) is formed with at least one series of inwardly curved projections (19) extending around the container (10), the lower annular portion (16b) of the retaining ring (16). ) is formed with at least one 20 around the container (10) bending row of outwardly protruding vaulting protrusions (20), said protuberances (19, 20) being interposed and adapted such that said inward and outward protrusional protrusions press against each other during elastic deformation of their vault when the stacking shoulders (21, 22) in the pushed containers (10) abut each other.

Container according to claim 1, characterized in that the projections (19, 20) in spherical arch (16a, 16b) of at least one of the annular parts (16a, 16b) of the holder (16), viz. skullcap shaped.

Container according to claim 2, characterized in that the vaulted projections (19, 20) in each circumferential series of projections have the same spacing (A19 and A20), the projections (20) in one annular part (16b) being preferably has a greater spacing (A20) than the DK 160401 B spacings (A19) between the projections (19) in the second annular portion (16a).

Container according to one or more of claims 1-3, 5, characterized in that the container wall (11) between the upper 16a) and the lower (16b) annular part is formed with a stiffening ring (16c) extending around the container (10). which preferably also constitutes an extra holding.

Container according to one or more of claims 1-4, 10, characterized in that the vaulted projections (19, 20) in each circumferential series of projections have the same diameter (D19 and D20) and the same radius of curvature (R19 and R20, respectively). the projections (19) in the upper annular portion (16a) preferably having a larger diameter (D19) and preferably also a larger radius of curvature (R19) than the diameter (D20) and the radius of curvature (R20) of the projections (20) in the lower annular portion, respectively. (16b).

Container according to one or more of claims 1-5, characterized in that the vaulted projections (19) in the upper 20 annular part (16) are formed with the largest diameter (D19) and optionally the largest radius of curvature (R19), and is spaced apart (A19).

Container according to one or more of claims 1-6, characterized in that the retaining ring (16) is arranged in the vicinity 25 of the stacking ring (15) or with its one annular part (16b) between the stacking shoulders (21, 22) of the stacking element (15). ).

Container according to claim 7, characterized in that the combination of the stacking ring (15) and the retaining ring (16) is arranged in the lower part of the container side wall (11).

Container according to claim 8, characterized in that a centering ring (23) is arranged in the container (11) below the lower stacking shoulder (22) of the stacking (15) and that in the container wall above the holder (16) upper annular portion (16a) is provided with at least one piston ring-like projecting guide (18).

Container according to one or more of claims 1-6, characterized in that the stacking (15) and the retaining ring (16) are arranged apart from each other, e.g. with one downwards and the other upwards, in the container wall (11).