NO773890L

NO773890L - BOX THAT CAN BE OPEN EASY.

Info

Publication number: NO773890L
Application number: NO773890A
Authority: NO
Inventors: Vinson Sirroll Potts
Original assignee: Crown Cork & Seal Co
Priority date: 1976-11-15
Filing date: 1977-11-14
Publication date: 1978-05-18
Also published as: PT67275A; ES464168A1; IT1114669B; PT67275B

Description

Oppfinnelsen vedrqrer lett åpnebare boksender avThe invention relates to easily openable box ends

den type som benyttes i olbokser og lignende bokser og som muliggjor åpning av boksene uten bruk av spesielle verktoy eller åpningsutstyr. the type used in oil cans and similar cans and which enables the cans to be opened without the use of special tools or opening equipment.

Det er kjent flere typer boksender som kan åpnes på en lettvint måte ved bruk av svingbare fliker. En svingeflik anses som særlig fordelaktig fordi man derved unngår en ellers nodvendig delvis utforming av en tbmmeåpning ved hjelp av svekningslinjer eller andre svekninger av et bestemt område på boksenden. En svingeflik kan benyttes også i forbindelse med av stålmateriale fremstilte boksender hvor man ellers ikke, som folge av stålmaterialets styrke, kan utforme en forhåndsmarkert tommeåpning ved hjelp av svekningslinjer eller andre svekninger i materialet. Several types of box ends are known which can be opened easily by using pivoting tabs. A swing tab is considered particularly advantageous because it avoids an otherwise necessary partial design of a tbmme opening by means of weakening lines or other weakening of a specific area on the box end. A swivel tab can also be used in connection with box ends made of steel material where, due to the strength of the steel material, it is not otherwise possible to design a pre-marked inch opening using weakening lines or other weaknesses in the material.

Fra U.S. patentskrift nr. 3.622.055 er det kjent en svingeflik i en stålboksende med en tommeåpning og et luftehull. Fliken er svingbart festet til yttersiden av boksenden, med deler av fliken ragende inn i tbmmeåpningen og luftehullet og i tettende anlegg mot undersiden av boksenden,, langs kantene til tommeåpningen og luftehullet. Boksender av denne type kan være vanskelige å åpne fordi tetningen ved tommeåningen og luftehullet kan by på en stor motstand. En annen boksende med en svingeflik er kjent fra U.S. Patentskrift nr. 3.106.311. Ved denne utforelse må deler av fliken forst fjernes fra tetningssamvirke med tommeåpningen ved at man trekker fliken oppover for den svinges til åpen stilling. From the U.S. patent document no. 3,622,055 there is known a pivoting tab in a steel box end with an inch opening and an air hole. The tab is pivotally attached to the outside of the box end, with parts of the tab projecting into the thumb opening and vent hole and in sealing contact with the underside of the box end, along the edges of the thumb opening and vent hole. Box ends of this type can be difficult to open because the seal at the inch opening and the air hole can offer a lot of resistance. Another box end with a pivot tab is known from U.S. Pat. Patent document no. 3,106,311. In this embodiment, parts of the tab must first be removed from sealing cooperation with the thumb opening by pulling the tab upwards before it is swung to the open position.

Et forslag til en utforelse av en lett åpnebar boksende, hvor man ikke baserer seg på delvis på forhånd utformede tommeåpninger er vist i U.S. patentskrift nr. 3.800.971. Ved denne utforelse innbefatter fliken- en plugg som skyves innover ved åpning. Innskyvbare plugger er også vist i U.S. patent-søknad nr. 522.097, av 8. november 1974, og U.S..patentsøknad nr. 513.723, av 10. oktober 197V': Hensikten med foreliggende oppfinnelse er å tilveiebringe en lett åpnebar boksende hvor det ikke er nødvendig med en på forhånd delvis tilforming av en tommeåpning ved hjelp av svekningslinjer eller andre svekninger av endefeltet. A proposal for an embodiment of an easily openable box end, which does not rely on partially preformed inch openings is shown in U.S. Pat. Patent Document No. 3,800,971. In this embodiment, the tab includes a plug which is pushed inwards when opening. Retractable plugs are also shown in U.S. Pat. patent application no. 522,097, dated November 8, 1974, and U.S. patent application no. 513,723, dated October 10, 197V': The purpose of the present invention is to provide an easily openable box end where partial pre-formation is not required of an inch opening by means of weakening lines or other weakening of the end field.

Særlig tar man ifolge oppfinnelsen sikte på å tilveiebringe en lett åpnebar boksende med en svingeflik hvor åpningen kan foregå relativt lett. In particular, according to the invention, the aim is to provide an easily openable box end with a pivoting flap where the opening can take place relatively easily.

Ifolge oppfinnelsen er det således tilveiebragt en boks som innbefatter selve boksen eller begeret og et endefelt som er festet til boksen. Endefeltet innbefatter en tommeåpning og et luftehull. En lukkeflik er svingbart montert på endefeltet og innbefatter en lukkedel som har tettende samvirke med endefeltet på endefeltets innside nær tommeåpningen og luftehullet, idet lukkedelen strekker seg på innsiden av endefeltet fra tommeåpningen og til det område hvor fliken har svingbar forbindelse med endefeltet. Fliken innbefatter videre en gripedel på yttersiden av endefeltet slik at lukkedelen derved kan påvirkes til en svinging fra lukket stilling og til åpen stilling. According to the invention, a box is thus provided which includes the box itself or the cup and an end panel which is attached to the box. The end panel includes an inch opening and a vent hole. A closing tab is pivotably mounted on the end field and includes a closing part that has sealing cooperation with the end field on the inside of the end field near the thumb opening and the air hole, the closing part extending on the inside of the end field from the thumb opening and to the area where the tab has a pivotable connection with the end field. The tab also includes a gripping part on the outside of the end field so that the closing part can thereby be influenced to swing from a closed position to an open position.

I samsvar med et vesentlig trekk ved oppfinnelsen muliggjor tommeåpningen en innskyving av lukkedelen slik at man derved kan bryte tetningen mellom lukkedelen og endefeltet nær tommeåpningen og derved lette den etterfølgende svinging av fliken. In accordance with an essential feature of the invention, the thumb opening enables the closing part to be pushed in so that the seal between the closing part and the end field near the thumb opening can thereby be broken and thereby facilitate the subsequent swinging of the flap.

I en foretrukken utforelse av oppfinnelsen strekker gripedelen seg langs yttersiden av endefeltet i retning fra svingestedet. Gripedelen strekker seg over tommeåpningen og samvirker med denne når den skyves mot det indre av boksen for derved å bryte tetningen mellom lukkedelen og innersiden av endefeltet. For å lette brytingen av tetningen har gripedelen fordelaktig et fremspring som kan rage inn i tommeåpningen. Luftehullet kan være anordnet nær svingestedet slik at luftehullet er lukket av lukkedelen når fliken er i lukket stilling. For å hindre en utilsiktet åpning av kannen, kan endefeltet ha et i retning utover loftet område nær lukkedelen når fliken er i lukket stilling. Det i retning utover loftede område kan ha en skrå flate som samvirker med gripedelen for derved å gi en svingebevegelse av fliken når gripedelen skyves innover mot lukkedelen for brytning av tetningen ved tommee-åpningen. In a preferred embodiment of the invention, the gripping part extends along the outside of the end field in the direction from the pivot point. The gripping part extends over the inch opening and cooperates with this when it is pushed towards the inside of the box to thereby break the seal between the closing part and the inside of the end field. In order to facilitate the breaking of the seal, the gripping part advantageously has a projection which can project into the thumb opening. The air hole can be arranged close to the pivot point so that the air hole is closed by the closing part when the tab is in the closed position. In order to prevent an accidental opening of the jug, the end field can have a raised area near the closing part when the tab is in the closed position. The outwardly lofted area can have an inclined surface which interacts with the gripping part to thereby provide a swinging movement of the tab when the gripping part is pushed inwards towards the closing part to break the seal at the tommee opening.

I en annen utf orjelsesf orm av oppfinnelsen innbefatter endefeltet en flikbetjeningsåpning anordnet mellom tommeåpningen og svingefestestedet, og gripedelen strekker seg gjennom denne flikbetjeningsåpning. Lukkedelen strekker seg gjennom flikbetjeningsåpningen.. Lukkedelen har tettende anlegg mot endefeltet på innsiden av dette, nær tommeåpningen og f likbet jeningsåpningen. Fjllken kan også innbefatte en festedel som strekker seg gjennom en festeåpning i endefeltet. Festedelen kan skyves innover for lufting. In another embodiment of the invention, the end field includes a tab operating opening arranged between the thumb opening and the pivot attachment point, and the grip part extends through this tab operating opening. The closing part extends through the flap operation opening. The closing part has a sealing contact against the end field on the inside of this, near the thumb opening and the flap operation opening. The chain can also include a fastening part which extends through a fastening opening in the end field. The attachment part can be pushed inwards for ventilation.

I en ennå en annen utforelsesform av oppfinnelsenIn yet another embodiment of the invention

kan flikens festedel være festet til boksenden uten å gå igjennom denne. Festedelen er da festet til undersiden av boksenden ved svingefestestedet. Svingefestestedet er (atskilt fra boksenden ved hjelp av en svekningslinje og dette område kan trykkes ned for tilveiebringelse av et luftehuli. the attachment part of the tab can be attached to the box end without going through it. The attachment part is then attached to the underside of the box end at the swivel attachment point. The swing mount is (separated from the box end by a weakening line and this area can be pressed down to provide an air hole.

Flikene kan fremstilles av forskjellige materialer. Eksempelvis kan flikene helt ut være fremstilt av et enhet- The tabs can be made from different materials. For example, the tabs can be completely produced from a unit

lig plastmateriale, eller fliken kan være av metall med et fleksibelt båndlignende tetningsmateriale som overlapper kantene til lukkedelen og har tetningssamvirke med endefeltet.-Oppfinnelsen skal beskrives nærmere under henvisning til tegningene som viser flere utforelseseksempler. similar plastic material, or the tab can be made of metal with a flexible band-like sealing material that overlaps the edges of the closing part and has sealing cooperation with the end field.

På tegningene viser ..,,The drawings show ..,,

fig. 1 et grunnriss av en boksende i et forste ut-fbrelseseksempel av oppfinnelsen, fig. 1 a plan view of a box end in a first embodiment of the invention,

fig. 2 viser et snitt av boksenden i fig. 1. etter linjen 2-2, -fig. 3 er et snitt av boksenden i fig. 1 etter linjen 3-3, fig. 2 shows a section of the box end in fig. 1. following the line 2-2, -fig. 3 is a section of the box end in fig. 1 after the line 3-3,

fig. 4 er et snitt av boksenden i fig. 1 etter linjen 4-4, fig. 4 is a section of the box end in fig. 1 after the line 4-4,

fig. 5 er et snitt av boksenden i fig. 1 etter lin- fig. 5 is a section of the box end in fig. 1 after lin-

jen 5-5,yen 5-5,

-fig. 5a er et grunnriss av en alternativ flik, fig. 5b er et snitt gjennom fliken i fig. 5a, -fig. 5a is a plan view of an alternative flap, fig. 5b is a section through the flap in fig. 5a,

fig. 6 er et grunnriss av en boksende ifolge et annet utforelseseksempel, fig. 6 is a plan view of a box end according to another exemplary embodiment,

fig. 7 er et snitt av boksenden i fig. 6 etter linjen 7-7, fig. 7 is a section of the box end in fig. 6 after the line 7-7,

fig. 8 er et snitt av boksenden i fig. 6 etter linjen 8-8, fig. 8 is a section of the box end in fig. 6 after the line 8-8,

fig. 9 er et grunnriss av nok et utforelseseksempel av oppfinnelsen, fig. 9 is a plan view of yet another embodiment of the invention,

fig. 10 er et snitt etter linjen 10-10 .i fig. 9 når boksenden er lukket, fig. 10 is a section along the line 10-10 in fig. 9 when the box end is closed,

fig. 11 er et snitt av boksenden i fig. ,9 etter linjen 10-10 når boksenden er åpen, fig. 11 is a section of the box end in fig. ,9 after the line 10-10 when the box end is open,

fig. 12 er et snitt av boksenden i fig. 9 etter linjen 12-12, fig. 12 is a section of the box end in fig. 9 after the line 12-12,

fig. 13 er et grunnriss av nok en boksende ifolge oppfinnelsen, fig. 13 is a plan view of yet another box end according to the invention,

fig. 14 er et^ snitt av boksenden i fig. 13 etter linjen 14-14, fig. 14 is a section of the box end in fig. 13 after the line 14-14,

fig. 15 er utsnitt av undersiden av lukkefliken ved svingefestestedet, fig. 15 is a section of the underside of the closing tab at the swing attachment point,

fig. 16 er et grunnriss av en boksende ifolge nok et utforelseseksempel av oppfinnelsen, fig. 16 is a plan view of a box end according to another embodiment of the invention,

fig. 17 er et snitt av boksenden i fig; 16 etter linjen 17-17 under åpningen, fig. 17 is a section of the box end in fig; 16 after the line 17-17 during the opening,

fig. 18, er et snitt av boksenden i fig. 16.etter linjen 17-17 under åpningen, ■ fig. 18, is a section of the box end in fig. 16.after the line 17-17 during the opening, ■

fig. 19 er et grunnriss av nok en boksende ifolge oppfinnelsen, fig. 19 is a plan view of yet another box end according to the invention,

fig. 20 viser et snitt av boksenden i fig. 19 etter linjen 20-20 for åpningen, fig. 20 shows a section of the box end in fig. 19 after the line 20-20 for the opening,

fig. 21 er et bunnriss av boksenden i fig..19 for åpningen, fig. 21 is a bottom view of the box end in fig..19 for the opening,

fig. 22 er et grunnriss av en boksende ifolge nok et utforelseseksempel av oppfinnelsen, fig. 22 is a plan view of a box end according to another embodiment of the invention,

fig. 23 viser et utsnitt av boksenden i fig.-22 i åpen tilstand, fig. 23 shows a section of the box end in fig.-22 in the open state,

fig. 24.viser et snitt av boksenden i fig.. 22 etter linjen 24-24 og viser boksenden i lukket tilstand,; fig. 24 shows a section of the box end in fig. 22 along the line 24-24 and shows the box end in a closed state;

fig. 25 viser et snitt av boksenden i fig. 22 etter linjen 24-24 og viser boksenden i halvåpen tilstand, fig. 25 shows a section of the box end in fig. 22 after the line 24-24 and shows the box end in a half-open state,

fig. 26 viser et snitt av boksenden i fig. 22 etter linjen 26-26, fig. 26 shows a section of the box end in fig. 22 after the line 26-26,

fig. 27 viser et utsnitt av en boksende ifolge nok en utfbrelsesform av oppfinnelsen, med boksenden i lukket tilstand, fig. 27 shows a section of a box end according to another embodiment of the invention, with the box end in a closed state,

fig. 28 viser et utsnitt av boksenden i fig. 27 i åpen tilstand, fig. 28 shows a section of the box end in fig. 27 in the open state,

fig. 29 viser et snitt av boksenden i fig. 27 etter linjen 29-29, fig. 29 shows a section of the box end in fig. 27 after the line 29-29,

fig. 30 viser et snitt av boksenden i fig. 27 etter linjen 29-29 under den forste fase av åpningen, fig. 30 shows a section of the box end in fig. 27 after the line 29-29 during the first phase of the opening,

fig. 31 viser et snitt av boksenden i fig. 27 etter linjen 29-29 under den andre fase av åpningen, fig. 31 shows a section of the box end in fig. 27 after the line 29-29 during the second phase of the opening,

fig. 32 viser et utsnitt av nok en boksende ifolge oppfinnelsen, med boksenden i lukket tilstand, fig. 32 shows a section of yet another box end according to the invention, with the box end in a closed state,

fig. 33 viser et snitt av boksenden i fig. 32 etter linjen 33-33, fig. 33 shows a section of the box end in fig. 32 after the line 33-33,

fig. 34 viser et snitt av boksenden i fig. 32 etter . linjen 33-33 under den forste fase av åpningen, og fig. 34 shows a section of the box end in fig. 32 after . line 33-33 during the first phase of the opening, and

fig. 35 viser et snitt av boksenden i fig.. 32 etter linjen 33-33 under den andre fase av åpningen. fig. 35 shows a section of the box end in fig. 32 along the line 33-33 during the second phase of the opening.

I fig. 1 - 5 er det vist en boks 10 med en boksende i form av et endefelt 12 som er falset på boksens ovre ende (fig. 5). Endefeltet 12 har en tommeåpning 14 og et mer sentralt plasert svingefestested 16 for en svingelukkeflik 18 som kan svinge om en akse i hovedsaken parallelt med aksen til boksen 10 og perpendikulært på endefeltets plan. In fig. 1 - 5, a box 10 is shown with a box end in the form of an end panel 12 which is folded on the box's upper end (fig. 5). The end panel 12 has an inch opening 14 and a more centrally placed swing attachment point 16 for a swing closure flap 18 which can swing about an axis essentially parallel to the axis of the box 10 and perpendicular to the plane of the end panel.

Fliken 18 har en lukkedel 20 som strekker seg langs innsiden av endefeltet 12 fra tommeåpningen 14 og"svingefestestedet 16. Fliken 18 har dessuten et loftet parti som danner en gripedel 22. Denne -gripedel strekker seg gjennom en flik-bet jeningsåpning 24 som er anordnet mellom svingefestestedet 16 og tommeåpningen 14. Som best vist i fig. 3 og 4 er gripedelen 22 asymmetrisk.plasert i flikbetjeningsåpningen 24 og The tab 18 has a closing part 20 which extends along the inside of the end field 12 from the thumb opening 14 and the pivot attachment point 16. The tab 18 also has a lofted part which forms a gripping part 22. This gripping part extends through a tab operating opening 24 which is arranged between the pivot attachment point 16 and the thumb opening 14. As best seen in Fig. 3 and 4, the grip part 22 is asymmetrically placed in the flap operation opening 24 and

strekker seg oppover og over ytterflaten til endefeltet 12extends up and over the outer surface of the end field 12

slik at man lett kan få tak i denne gripedel og påvirke fliken 18 til svinging om svingefestestedet 16. so that one can easily get hold of this gripping part and influence the tab 18 to swing about the swing attachment point 16.

Flikens 18 lukkedel 20 har tettende kontakt med innersiden av endefeltet 12 ved tbmmeåpningfen 14 såvel s.O.m ved f likbet jeningsåpningen 24. Fliken er forsynt méd-et ...fleksibelt 1 , —i båndlignende. element 26 som strekker seg utover kantenjÉTj;.il den relativt stive delen 28 av fliken og ligger tettende an mot innersiden av endefeltet 12. Den relativt stive; flikdel 28, som er utformet i ett med gripedelen 22, er ,i dette tilfelle fremstilt av metall, mens det fleksible båndlignende element 26 er av et materiale som markedsføres av 3M Company under betegnelsene "PSDX 46-49" eller "Y-8023"..Andre lignende båndmaterialer kan naturligvis også benyttes. The closing part 20 of the flap 18 has sealing contact with the inner side of the end field 12 at the tube opening 14 as well as at the f flap operation opening 24. The flap is provided with a ... flexible 1 , - in a ribbon-like manner. element 26 which extends beyond the edge of the relatively rigid part 28 of the flap and rests tightly against the inner side of the end field 12. The relatively rigid; flap part 28, which is formed in one with the gripping part 22, is in this case made of metal, while the flexible band-like element 26 is of a material marketed by the 3M Company under the designations "PSDX 46-49" or "Y-8023" ..Other similar tape materials can of course also be used.

I samsvar med oppfinnelsen har flikens..18 stive del 28 et loftet parti 30 som strekker seg opp gjennom tommeåpningen 14. Dette parti 30 kan påvirkes med fingeren .og skyves ned gjennom tommeåpningen 14, hvorved man bryter tetningssamvirket rundt tommeåpningen 14 som vist med strekpunkterte, linjer i fig. 3. Ved en-slik nedtrykking vil altså i hovedsaken hele tetningssamvirket mellom båndelementet 26 og undersiden av endefeltet 12 brytes rundt tommeåpningen 14 når man trykker det loftede parti 30 nedover eller innover i boksen.. Som det går frem av teigningene, er kantene til tommeåpningen 14 utfort med en vulst 32 for å beskytte brukerens finger under nedtryk-kingen av partiet 30. Vulsten 32 danner et loftet,, område 35 rundt tommeåpningen"slik at fliken 18 i hovedsaken befinner seg inne i den utsparing som på denne måten dannes 1 innerflaten, slik at innersiden.av flikdelen 28 i hovedsaken flukter med innersiden av endefeltet. In accordance with the invention, the rigid part 28 of the tab ..18 has a lofted part 30 which extends up through the thumb opening 14. This part 30 can be influenced with the finger and pushed down through the thumb opening 14, whereby the sealing cooperation around the thumb opening 14 is broken as shown with dashed lines , lines in fig. 3. In the case of such a pressing down, essentially the entire sealing cooperation between the band element 26 and the underside of the end field 12 will be broken around the inch opening 14 when the lofted part 30 is pressed downwards or inwards into the box. As can be seen from the drawings, the edges of the inch opening are 14 is extended with a bead 32 to protect the user's finger during the depressing of the part 30. The bead 32 forms a lofted area 35 around the thumb opening, so that the tab 18 in the main body is located inside the recess that is formed in this way on the inner surface , so that the inner side of the flap part 28 essentially aligns with the inner side of the end field.

Som vist i fig. 2 og 3, har fliken 18 ,en i ett med fliken utformet nagle 34. Denne nagle 34" strekker seg gjennom et hull eller en åpning 17 i endefeltet 12 ved:svingefestestedet og er utvidet på toppen slik at fliken derved- er inn-spent i endefeltet. Denne naglen danner en svingetapp for fliken. Det fleksible båndelement 26 strekker seg./utover den av metall fremstilte flikdel 28 og ligger tet.tendef;an. mot undersiden av endefeltet 12 også rundt svingefestestedet. 16. Fliken 18 har-således tettende samvirke_med undersiden av endefeltet 12 over hele sin lengde. As shown in fig. 2 and 3, the tab 18 has a rivet 34 formed integrally with the tab. This rivet 34" extends through a hole or an opening 17 in the end field 12 at the pivot attachment point and is extended at the top so that the tab is thereby engaged in the end field. This rivet forms a pivot pin for the tab. The flexible band element 26 extends./beyond the tab part 28 made of metal and lies close to the underside of the end field 12 also around the pivot attachment point. 16. The tab 18 has-thus sealing cooperation_with the underside of the end field 12 over its entire length.

Boksen åpnes i to trinn. Forst "bryter., man., tetningen rundt tommeåpningen 14 og ved flikbetjeningsåpningen 24 ved at man skyver fliken 18 innover under utbvelse av et innoverrettet trykk på den loftede del 30 i tommeåpningen 14, slik det er vist med strekpunkterte linjer i fig. 3. Så The box opens in two steps. First, the seal around the thumb opening 14 and at the tab operating opening 24 is "broken" by pushing the tab 18 inwards while exerting an inwardly directed pressure on the lofted part 30 in the thumb opening 14, as shown by dotted lines in Fig. 3. So

snart lukningssamvirket mellom fliken 18 og undersiden av endefeltet 12 er brutt på disse steder, kan fliken svinges relativt lett fra den lukkede stilling i fig. 1 og til den åpne'stilling ved å utove et fingertrykk mot gripedelen 22. Det vil være relativt vanskelig å bryte fliktetningen uten forst å trykke fliken innover. Når man derimot forst trykker fliken innover og bryter tetningen rundt tommeåpningen 14 og i. mindre grad også ved f likbet jeningsåpningen .24, vil det eneste tetningsområde som står igjen befinne seg...nær .svinge-[fEstestedet 16 og den tetningsf riks jon som utoves..kan man relativt lett overvinne som folge av den vektarmvirkning som man får som folge av avstanden mellom gripedelen og svihge-tappen. Uten at man forst bryter tetningen ved .tommeåpningen 1.4, vil således den mekaniske fordel som fliken.gir, falle bort. Så snart fliken 18 er svinget til åpen stilling, vil flikbetjeningsåpningen 24 og festehullet.17 tjene som luftehull for boksenden 12. as soon as the closing cooperation between the flap 18 and the underside of the end field 12 is broken in these places, the flap can be swung relatively easily from the closed position in fig. 1 and to the open position by pressing a finger against the grip part 22. It will be relatively difficult to break the tab seal without first pressing the tab inwards. On the other hand, when you first press the flap inwards and break the seal around the thumb opening 14 and to a lesser extent also at the flap service opening .24, the only sealing area left will be...close to the swing-[attachment point 16 and the sealing friction as well as.. can be relatively easily overcome as a result of the weight arm effect that you get as a result of the distance between the grip part and the svihage pin. Without first breaking the seal at the inch opening 1.4, the mechanical advantage that the tab provides will thus be lost. As soon as the flap 18 is swung to the open position, the flap operating opening 24 and the fixing hole 17 will serve as ventilation holes for the box end 12.

For å hindre en utilsiktet åpning av.boksenden ved To prevent an accidental opening of the box end by

utovelsen av en uonsket nedoverrettet kraft på flikens loftede del 30, er boksenden 12 forsynt med loftede partier 36 på begge sider av tommeåpnin^gen-? 14 og f likbet jeningsåpningen 24. Disse loftede partier 36 rager, opp over flikens loftede parti 30 slik at gjenstander som hviler på toppen av eller på .utsiden av boksenden 12 ikke uten videre vil få kontakt med flikens loftede del 30. Denne beskyttende virkning går klart frem av fig. 4 og 5. I tillegg kan de loftede partier 36 i boksenden 12 utnyttes for oking av endefeltets styrke. the exerting of an unwanted downward force on the tab's lofted part 30, the box end 12 is provided with lofted portions 36 on both sides of the inch opening-? 14 and the operating opening 24. These lofted parts 36 project above the lofted part 30 of the tab so that objects resting on top of or on the outside of the box end 12 will not easily come into contact with the lofted part 30 of the tab. This protective effect goes clear from fig. 4 and 5. In addition, the lofted parts 36 in the box end 12 can be utilized for increasing the strength of the end field.

En litt modifisert flik 18a er vist i fig,. 5a og 5b. Fliken 18a har en oppragende ringlignende gripedel 22a, og en trykkdel 30a. Gripedelen strekker seg gjennom flikbetjeningsåpningen 24a, og trykkdelen 30a strekker seg gjennom tommef-": åpningen 14a. - Den ovre del av f inger delen 22a er ..avf latet og skrår utover over endefeltet 12a på samme måte som naglen 34a gjennom åpningen 17a på svingef estestedet I6.a... Derved er man-sikret at fliken 18a holdes skikkelig på plass i ..flikbetjeningsåpningen 24c og i nagleåpningen... A slightly modified tab 18a is shown in fig. 5a and 5b. The tab 18a has a projecting ring-like gripping part 22a, and a pressure part 30a. The grip portion extends through the flap operation opening 24a, and the pressure portion 30a extends through the thumb opening 14a. - The upper part of the finger portion 22a is ..flattened and slopes outward over the end field 12a in the same way as the rivet 34a through the opening 17a of the pivot point I6.a... This ensures that the tab 18a is properly held in place in the tab operating opening 24c and in the rivet opening...

I fig. 6 - 8 er det vist en utforelse som lignerIn fig. 6 - 8 a similar embodiment is shown

den som-er vist i fig. 1-5. Utforelsen i fig..6- 8 har en boksende 112 som er festet til en boks 110 ved hjelp av fak-sing. Boksenden 112 har en tommeåpning 114, en flfkbet jeff-.. ingsåpning 124 og et hull ved svingefestestedet 116. Fliken 118 er utformet i ett av et plastmateriale såsom .f.eks. poly-propylen, polyetylen, polyester, nylon eller et annet lignende materiale som har tettende samvirke med undersiden av endefeltet 112 ved tommeåpningen 114, flikbetjeningsåpningen 124 og hullet i svingef estestedet 116. Av fig.. 7 og 8. går det frem at fliken 118 har et tétningsparti 126 som strekker ...seg rundt åpningene. Tetningspartiet 126 kan være ultralydsveiset til undersiden av endefeltet 112. Det kan eventuelt.også benyttes et bindemiddel på undersiden av endefeltet 112, .f.eks. et trykkfolsomt eller varmefolsomt belegg av den typ.e .som benyttes på vanlig tilgjengelige klebebånd.. the one shown in fig. 1-5. The embodiment in Figs. 6-8 has a box end 112 which is attached to a box 110 by means of faxing. The box end 112 has an inch opening 114, a flfkbet jeff-.. ing opening 124 and a hole at the pivot attachment point 116. The tab 118 is formed in one of a plastic material such as .e.g. polypropylene, polyethylene, polyester, nylon or another similar material which has a sealing cooperation with the underside of the end field 112 at the thumb opening 114, the tab operation opening 124 and the hole in the pivot attachment point 116. From Figs.. 7 and 8. it appears that the tab 118 has a sealing part 126 which extends around the openings. The sealing part 126 can be ultrasonically welded to the underside of the end field 112. Optionally, a binder can also be used on the underside of the end field 112, e.g. a pressure-sensitive or heat-sensitive coating of the type used on commonly available adhesive tapes..

Fliken 118 har et loftet parti 13Q i tommeåpningen 114. Når man trykker på dette loftede parti, .vil.,fliken kunne trykkes nedover eller innover i tommeåpningen 11.4, hvorved man bryter tetningen for fliken svinges til åpen stilling. Svinge-bevegelsen utfores ved påvirkning av gripedelen 122. Denne gripedel strekker seg ut gjennom flikbetjeningsåpningen 124 The tab 118 has a lofted part 13Q in the thumb opening 114. When this lofted part is pressed, the tab can be pressed downwards or inwards into the thumb opening 11.4, thereby breaking the seal so that the tab is swung to the open position. The swing movement is performed by the action of the gripping part 122. This gripping part extends through the flap operating opening 124

og er så liten at den.kan beveges fra den lukkede' stilling som er vist i fig. 6 og til den åpne stilling på,den andre siden av flikbetjeningsåpningen 124. Naglen 134. strekker seg gjennom et hull i svingefesteområdet 116.. and is so small that it can be moved from the closed position shown in fig. 6 and to the open position on, the other side of the tab operating opening 124. The rivet 134. extends through a hole in the pivot attachment area 116..

Til forskjell fra det forste utforelseseksempel er kantene rundt tommeåpningen 114 og 'flikbetjeningsåpningen 124 flaset mot innsiden av endefeltet 112. En slik falsing finner man også i mindre utstrekning i utforelsen i fig. 5a og 5b. Kantene til åpningene 114 og- 124 er således vendt ifra åpningene, slik at man oppnår en beskyttelse av fingeren under inn-trykking og svingingfavfliken. Kanten rundt festehullet 117 er derimot brettet oppover, dvs.mot utsiden av endefeltet 112, slik at det utvidede hode på naglen 124 ligger an mot denne kanten. In contrast to the first exemplary embodiment, the edges around the thumb opening 114 and the flap operation opening 124 are flared towards the inside of the end field 112. Such folding is also found to a lesser extent in the embodiment in fig. 5a and 5b. The edges of the openings 114 and 124 are thus turned away from the openings, so that a protection of the finger is achieved during pressing in and swinging the flap. The edge around the fastening hole 117, on the other hand, is folded upwards, i.e. towards the outside of the end field 112, so that the extended head of the rivet 124 rests against this edge.

Som ved det foran beskrevne utforelseseksempelAs with the embodiment example described above

åpner manvBpksen i en totrinns-operasjon idet man forst utover en trykkvirkning på partiet 130 for derved å bryte tetningen rundt tommeåpningen 114 og i mindre grad rundt flikbetjeningsåpningen 124, hvoretter man påvirker gripedelen 122 for svinging av fliken om svingepunktet 116.. Under dette utnytter man også her fordelaktig den vektarm man har i forhold til svingepunktet, slik at brytingen av tetningen i nærheten av naglen 134 lettes. opens the manvBpx in a two-stage operation, firstly exerting a pressure effect on the part 130 to thereby break the seal around the thumb opening 114 and to a lesser extent around the flap operation opening 124, after which the gripping part 122 is influenced to swing the flap about the pivot point 116.. During this, one utilizes also here advantageously the weight arm one has in relation to the pivot point, so that the breaking of the seal in the vicinity of the rivet 134 is facilitated.

I utforelsen i fig. "6 - 8 har man også.sbrget for en beskyttelse mot utilsiktet åpning av boksenden. Som best vist i fig. 6, er det på begge sider av åpningene i endefeltet 112 anordnet et forhoyet parti 136 som også strekker seg rundt svingef estestedet 116. In the embodiment in fig. "6 - 8 protection against accidental opening of the box end has also been provided. As best shown in Fig. 6, a raised part 136 is arranged on both sides of the openings in the end field 112 which also extends around the pivot attachment point 116.

Utforelsen i fig. 9-12 har en tb'mmeåpning 214 og et lite luftehull 217 nær svingefestestedet 216 i endefeltet 212. Lukkefliken 218 innbefatter en innvendig lukkedel 220 som ligger tettende an mot undersiden av endefeltet 212 ved tommeåpningen 214,.. svingef estestedet 216 og luftehullet 217. I tillegg har fliken en utvendig gripedel 222 som strekker seg fra svingefestestedet 216 og til en stilling over tommeåpningen 214. Gripedelen 222 har et fremspring 240 som. strekker seg nedover mot tommeåpningen 214 slik at man ved å trykke på dette fremspring kan bryte tetningen mellom lukkedelen 220 og innersiden av endefeltet 212. Så snart tetningen er brutt rundt tommeåpningen 214, kan gripedelen svinges på utsiden av endefeltet, hvorved også lukkedelen 220 svinges, idet disse to deler er sammenkoplet ved hjelp av en i hovedsaken firkantet nagle 234 som er utformet i ett med lukkedelen 220. Ved hjelp av gripedelen 222 kan man således bryte den gjenværende tet-ning ved svingefestestedet 216 og luftehullet 217. På samme måte som i utforelsen i fig. 1-5 har lukkedelen 220 et fleksibelt båndlignende tetningselement 226 som strekker seg ut over kantene til den relativt stive metalldel 228 som forovrig innbefatter naglen 234. Da naglen 234 i hovedsaken er firkan- kantet i tverrsnitt, vil gripedelen 222 ha et godt dreiesam-virke med naglen 234. The embodiment in fig. 9-12 has a tb'mme opening 214 and a small air hole 217 near the swing attachment point 216 in the end field 212. The closing flap 218 includes an internal closing part 220 which is in sealing contact with the underside of the end field 212 at the inch opening 214,... the swing attachment point 216 and the air hole 217. In addition, the tab has an external grip part 222 which extends from the pivot attachment point 216 and to a position above the thumb opening 214. The grip part 222 has a projection 240 which. extends downwards towards the thumb opening 214 so that by pressing this projection the seal between the closing part 220 and the inside of the end field 212 can be broken. As soon as the seal is broken around the thumb opening 214, the gripping part can be swung on the outside of the end field, whereby the closing part 220 is also swung, as these two parts are connected by means of an essentially square rivet 234 which is designed as one with the closing part 220. With the help of the gripping part 222, the remaining seal at the swivel attachment point 216 and the air hole 217 can thus be broken. In the same way as in the embodiment in fig. 1-5, the closure part 220 has a flexible band-like sealing element 226 which extends over the edges of the relatively rigid metal part 228 which also includes the rivet 234. As the rivet 234 is essentially square in cross-section, the gripping part 222 will have a good rotational interaction with rivet 234.

Endefeltet 212 har som vist loftede partier 236 på hver side av tommeåpningen 214. Disse loftede partier 236 hindrer en utilsiktet åpning av boksenden og gir også ekstra styrke til endefeltet 212. I de praktiske utfbreiser kan det eventuelt være nbdvendig å lbfte gripedelen 222 slik at den går klar av de loftede partier 236 og kan svinges til åpen stilling. Denne svingingen skjer som nevnt forst etter at tetningen i tommeåpningen er brutt på den måten som er vist i fig. 11... As shown, the end field 212 has lofted parts 236 on each side of the thumb opening 214. These lofted parts 236 prevent an accidental opening of the box end and also give extra strength to the end field 212. In the practical versions, it may be necessary to lift the grip part 222 so that it goes clear of the lofted parts 236 and can be swung into an open position. As mentioned, this oscillation only occurs after the seal in the inch opening has been broken in the manner shown in fig. 11...

En litt modifisert utforelse av den nettopp omtal-te boksende '"- ler vist i fig. 13 - 15.. Det anvendes en nagle 334 med en irregulær form som gir en liten bevegelsesklaring mellom gripedelen 332 og lukkedelen 320. Således har naglen 334 en plan side 342 som kan bevege seg litt i en åpning 344 A slightly modified embodiment of the just-mentioned box-ended '"-ler is shown in fig. 13 - 15. A rivet 334 with an irregular shape is used, which provides a small movement clearance between the gripping part 332 and the closing part 320. Thus, the rivet 334 has a plane side 342 which can move slightly in an opening 344

i flikens lukkedel 320. Når naglen 334 er blitt dreiet til den stilling som er vist med stiplede linjer i fig. 15, vil gripedelen 322 kunne svinge seg litt til den med strekpunkterte linjer viste stilling om en akse i hovedsaken' perpendikulært på planet til endefeltet og i hovedsaken parallelt med boksens lengdeakse. Klaringen eller slakken mellom naglen 334 og åpningérT344 vil da være brukt opp og en videre sjving^-ing av gripedelen 322 vil bevirke en tilsvarende bevegelse av lukkedelen 320. I dette utforelseseksempel er det bare et enkelt loftet endefeltområde 336 som beskytter mot .utilsiktet åpning av boksenden. in the tab's closing part 320. When the rivet 334 has been turned to the position shown by dashed lines in fig. 15, the gripping part 322 will be able to swing slightly to the position shown with dotted lines about an axis in the main case perpendicular to the plane of the end field and in the main case parallel to the longitudinal axis of the box. The clearance or slack between the rivet 334 and the opening 344 will then be used up and a further swing of the gripping part 322 will cause a corresponding movement of the closing part 320. In this embodiment, only a single lofted end field area 336 protects against accidental opening of the box end.

Utforelsen i fig. 16 - 18 er i hovedsaken lik utforelsen i figJ 9-12, med unntagelse av det i endefeltet 412 bare er et enkelt loftet beskyttelsesparti 436 og at dette loftede parti 4^6 har en skrå flate 446 som er beregnet for samvirke med en falset kant 448 på gripedelen 422, slik det går frem av fig. 17 og 18. Når gripedelen 422 trykkes nedover eller innover, vil den dreies som folge av samvirket mellom kanten 448 og skråflaten 446. Samtidig brytes tetningen mellom båndet 426 og lukkedelen 420 og endefeltet 412 når fremspring-et 440 trykker mot metalldelen 428. Denne kombinerte bevegelse av gripedelen er særlig fordelaktig under åpningen av boksenden. The embodiment in fig. 16 - 18 are essentially similar to the embodiment in figJ 9-12, with the exception that in the end field 412 there is only a single lofted protective part 436 and that this lofted part 4^6 has an inclined surface 446 which is intended for cooperation with a folded edge 448 on the gripping part 422, as can be seen from fig. 17 and 18. When the gripping part 422 is pressed downwards or inwards, it will rotate as a result of the interaction between the edge 448 and the inclined surface 446. At the same time, the seal between the band 426 and the closing part 420 and the end field 412 is broken when the projection 440 presses against the metal part 428. This combined movement of the gripping part is particularly advantageous during the opening of the box end.

Utforelsen i fig. 19 -_21 er i hovedsaken lik utforelsen i fig. 5a og 5b, med unntagelse av at den relativt stive del 528 av fliken 518 er av et plastmateriale isteden-for av metall. Fliken 518 har en naglelignende del 534 som strekker seg gjennom endefeltet 512 i svingefestestedet 516. The embodiment in fig. 19 -_21 are essentially similar to the embodiment in fig. 5a and 5b, with the exception that the relatively rigid part 528 of the tab 518 is of a plastic material instead of metal. The tab 518 has a rivet-like portion 534 that extends through the end field 512 in the pivot attachment location 516.

Som i fig. 1 - 5 er det endefeltet 512 en tomme-, åpning 514 hvorigjennom den loftede flikdel 530 rager opp. Videre går en gripedel 522 opp gjennom en flikbetjeningsåpning 524. Et loftet parti 536 er utformet i endefeltet og strekker seg i hovedsaken rundt fliken 518 og beskytter mot utilsiktet åpning. Som vist i fig. 20 og 21 er fliken 518 tettet mot innersiden av endefeltet 512 ved hjelp av et fleksibelt båndlignende element 526 som strekker seg utover kantene til fliken 518 og har tetningssamvirke med endefeltets innerside. As in fig. 1 - 5, the end field 512 is an inch opening 514 through which the lofted flap part 530 protrudes. Furthermore, a gripping part 522 goes up through a tab operating opening 524. A lofted portion 536 is formed in the end field and extends mainly around the tab 518 and protects against accidental opening. As shown in fig. 20 and 21, the tab 518 is sealed against the inside of the end field 512 by means of a flexible band-like element 526 which extends beyond the edges of the tab 518 and has sealing cooperation with the inside of the end field.

Rundt tommeåpningen 514 og flikbetjeningsåpningen 524 er kantene falset innunder på samme måte som iffig. 6 - 8. Likeledes er kanten rundt naglehullet bbyet utover og samvirker med hodet på naglen 534. Den stive flikdelen b..efinner seg i et utsparet parti 530 i endefeltet slik at innerflaten til den stive flikdel i hovedsaken flukter med innerveggen til endefeltet, slik at båndelementet 526' blir liggende omtrent i planet til endefeltets innerside. Around the thumb opening 514 and the flap operation opening 524, the edges are folded under in the same manner as in fig. 6 - 8. Likewise, the edge around the rivet hole is bent outwards and cooperates with the head of the rivet 534. The rigid flap part b..is located in a recessed part 530 in the end field so that the inner surface of the rigid flap part is essentially flush with the inner wall of the end field, as that the band element 526' lies approximately in the plane of the inner side of the end field.

Utforelsen i fig. 22 - 26 har en lukkeflik 618 som atskillerjseg relativt mye fra de tidligere beskrevne. Et meget vesentlig trekk ved fliken 618 er gripedelen 622 som er asymmetrisk plasert i flikbetjeningsåpningen 624.. Gripedelen 622 har et hode 623 som rager ut over omkretsen til flikbetjeningsåpningen 624 i retning i hovedsak mot svingefestestedet 616 med naglen 634. Som best vist i fig. 25 muliggjor hodet 623, som strekker seg mot svingefestestedet 616, at fliken 618 kan skyves og boyes innover eller nedover for derved å sikre at det loftede parti 630 går klar, av,, omkretsen til tommeåpningen 614, slik at fliken kan svinges i et plan hovedsakelig parallelt med endefeltet 612, slik det er vist i fig. 23. Gripedelen 622 har også en oppruet flate, i dette tilfelle med ribber 650 som strekker seg i retning mot svingefestestedet 616. Disse ribber 650 går best frem av fig. 22, 23 og 26. The embodiment in fig. 22 - 26 have a closing flap 618 which differs relatively much from those previously described. A very important feature of the flap 618 is the grip part 622 which is asymmetrically placed in the flap operation opening 624. The grip part 622 has a head 623 which protrudes above the circumference of the flap operation opening 624 in the direction mainly towards the pivot attachment point 616 with the rivet 634. As best shown in fig. 25, the head 623, which extends towards the pivot attachment point 616, enables the tab 618 to be pushed and bent inwards or downwards to thereby ensure that the lofted portion 630 clears the circumference of the thumb opening 614, so that the tab can be pivoted in a plane substantially parallel to the end field 612, as shown in FIG. 23. The grip part 622 also has a roughened surface, in this case with ribs 650 that extend in the direction of the pivot attachment point 616. These ribs 650 are best seen in fig. 22, 23 and 26.

Naglen 624 har et hode på toppen av en hals 652, og hodet ligger over kanten til hullet 617. Som det best går frem av fig. 24 og 25, muliggjor halsen 652 at fliken 618 kan skyves aksialt mot boksens indre helt til hodet får anlegg mot kanten i hullet 617. Dette muliggjor at det loftede parti 630 kan gå klar av kanten rundt tommeåpningen 614 uten vesentlig bbyning av den stive flikdel 628. Som også vist i fig. 24 og 25, vil det fleksible båndlignende element 626 i åpnet stilling være atskilt fra endefeltet 612 over hele lengden, også i området ved svingefestestedet 616. The rivet 624 has a head on top of a neck 652, and the head overlies the edge of the hole 617. As best seen from FIG. 24 and 25, the neck 652 enables the tab 618 to be pushed axially towards the inside of the box until the head comes into contact with the edge in the hole 617. This enables the lofted part 630 to clear the edge around the inch opening 614 without significant bending of the rigid tab part 628 As also shown in fig. 24 and 25, the flexible band-like element 626 in the open position will be separated from the end field 612 over the entire length, also in the area of the swing attachment point 616.

Også her er kantene i tommeåpningen 614 og flikbetjeningsåpningen 624 falset mot undersiden av endefeltet. Here, too, the edges of the thumb opening 614 and the tab operating opening 624 are folded towards the underside of the end field.

I endefeltet er det et loftet område 635 som muliggjor at den stive delen 628 kan innfelles i endefeltets underside slik at innersiden av delen 628 i hovedsaken flukter med innersiden av endefeltet 612. Dette muliggjor, som tidligere nevnt, at det båndlignende element 626 kan ligge i hovedsaken plant og tettende an mot endefeltet 612, slik det er vist i fig. 2^]og 26. In the end field, there is a lofted area 635 which makes it possible for the rigid part 628 to be embedded in the underside of the end field so that the inner side of the part 628 is essentially flush with the inside of the end field 612. This makes it possible, as previously mentioned, that the band-like element 626 can lie in the main body is flat and sealing against the end field 612, as shown in fig. 2^] and 26.

Utforelsen i fig. 27 - 31 ligner utforelsen i fig.The embodiment in fig. 27 - 31 is similar to the embodiment in fig.

22 - 26, med unntagelse av stbrrelsen og virkemåten til naglen 634. Som det best vil gå frem av en sammenligning mellom fig. 22, 23 og 27, 28, er ytterflaten til naglen 734 vesentlig storre enn ytterflaten til naglen 634. Denne flatebkning er foretatt for å kunne utnytte naglen 734 for lufteformål. Naglen 734 er bket med hensyn til sin flate slik at man kan presse en finger mot den og skyve naglen 734 innover. 22 - 26, with the exception of the stem movement and the operation of the rivet 634. As will best be seen from a comparison between fig. 22, 23 and 27, 28, the outer surface of the rivet 734 is significantly larger than the outer surface of the rivet 634. This surface bending is done in order to be able to utilize the rivet 734 for ventilation purposes. The rivet 734 is bent with respect to its surface so that one can press a finger against it and push the rivet 734 inwards.

Utforelsen i fig. 27 - 31 er slik at åpningen fore-går i tre trinn. For åpningen vil svingefliken være anordnet som vist i fig. 27 og 29, med det fleksible båndlignende element 726 i tettende anlegg mot innersiden av endefeltet 712. For åpning utover man forst en trykkraft på ytterflaten til naglen 734 som antydet med pilen F^i fig. 30. Derved brytes tetningen mellom båndelementet 726 og innersiden av endefeltet 712 ved eller rundt svingefesteåpningen 717. Naglen 734 har som man ser en relativt lang hals 752 som muliggjor en slik bevegelse av naglen for naglehodet stbter an mot endefeltets ytterside. The embodiment in fig. 27 - 31 is such that the opening takes place in three stages. For the opening, the swing tab will be arranged as shown in fig. 27 and 29, with the flexible band-like element 726 in sealing contact against the inner side of the end field 712. For opening outwards, a compressive force on the outer surface of the rivet 734 is understood as indicated by the arrow F^ in fig. 30. Thereby, the seal between the band element 726 and the inner side of the end field 712 is broken at or around the swivel attachment opening 717. As can be seen, the rivet 734 has a relatively long neck 752 which enables such a movement of the rivet so that the nail head rests against the outer side of the end field.

Neste trinn er at man utover en trykkraft F2motThe next step is to add a pressure force F2 to

det loftede parti 730 som vist i fig. 31. Nå brytes tetningen mellom tetningselementet 726 og innersiden av endefeltet 712 ved eller rundt tommeåpningen 714 såvel som rundt flikbetjeningsåpningen 724. Den kraft som er nbdvendig for å bryte tetningen ved tommeåpningen 714 og flikbetjeningsåpningen 724-er strekt redusert som folge av at beholderen allerede er luftet, og den kraft som utoves på den loftede del 734 må således ikke overvinne det innvendige trykk i beholderen. the lofted part 730 as shown in fig. 31. Now the seal between the sealing element 726 and the inner side of the end field 712 is broken at or around the thumb opening 714 as well as around the flap operation opening 724. The force required to break the seal at the thumb opening 714 and the flap operation opening 724 is greatly reduced as a result of the container already being aired, and the force exerted on the lofted part 734 must thus not overcome the internal pressure in the container.

I denne forbindelse skal det her pekes på at det mindre areal som naglen 734 har sammenlignet med lukkedelen 720 medfbrer at det bare kreves en mindre åpningskraft. Det skyldes at det totale trykk som virker innvendig på lukkefliken i området ved naglen 734 er mindre enn det totale trykk som virker på hele lukkedelen 720. In this connection, it should be pointed out here that the smaller area that the rivet 734 has compared to the closing part 720 means that only a smaller opening force is required. This is because the total pressure acting internally on the closing tab in the area of the rivet 734 is less than the total pressure acting on the entire closing part 720.

Det tredje trinn under åpningen er at fliken 718 svinges til åpen stilling som vist i fig. 28. Dette skjer ved en påvirkning av gripedelen 722. Under dette vil hodet 733 på gripedelen ligge an mot den innover falsede kant i flikbetjeningsåpningen 724. The third step during the opening is that the tab 718 is swung to the open position as shown in fig. 28. This occurs when the gripping part 722 is affected. During this, the head 733 of the gripping part will rest against the inwardly folded edge in the tab operating opening 724.

Som vist i fig. 29 - 31 er hodet på naglen 734 relativt lite. Man kan oke hodets flate for derved å oke naglens ytre flate, hvorved man reduserer det spesifikke ytre trykk som må utbves for å oppnå en lufting av boksen. En ytterligere redusering av dette spesifikke trykk kan man oppnå As shown in fig. 29 - 31, the head of the rivet 734 is relatively small. You can widen the surface of the head to thereby widen the outer surface of the rivet, thereby reducing the specific external pressure that must be exerted to achieve ventilation of the box. A further reduction of this specific pressure can be achieved

ved å oke arealet til halsen som forbinder naglehodet med resten av lukkefliken 718. Imidlertid er det visse grenser for bkingen av naglen, hvilket i hovedsaken skyldes vanskeligheter ved innfbringen av et stbrre naglehode gjennom hullet 717. by increasing the area of the neck that connects the nail head with the rest of the closing flap 718. However, there are certain limits to the bending of the nail, which is mainly due to difficulties in introducing a stronger nail head through the hole 717.

I denne forbindelse er det i utfbrelseseksemplet anordnet avlastningsarealer 757 som muliggjor en radiell innoverrettet sammentrykking av naglehodet. In this connection, relief areas 757 are arranged in the embodiment which enable a radially inward compression of the rivet head.

Lukkefliken 718 er fremstilt av et plastmateriale som er relativt stivt, men allikevel kan deformeres som vist i fig. 30 og 31. Dersom det benyttes en flik av metall, så kan naglehodet tilformes etter monteringen. The closing flap 718 is made of a plastic material which is relatively rigid, but can still be deformed as shown in fig. 30 and 31. If a tab of metal is used, the rivet head can be shaped after assembly.

Naglehodet tjener også til å beskytte fingeren mot skader fra kanten til hullet 717. Ved åpning av boksen kan man således uten fare trykke naglen 734 innover. Fordi naglen 734 hele tiden holdes fast i hullet 717 behbver man ikke The nail head also serves to protect the finger from damage from the edge of the hole 717. When opening the box, the nail 734 can thus be pressed in without danger. Because the rivet 734 is constantly held in the hole 717, it is not necessary

trykke fingeren inn i boksen under'luftingen, slik man måpress your finger into the box during the airing, as you must

gjore ved utforelsen i fig. 22 - 26. Som folge herav fore-ligger det heller ingen risiko for slik påvirking av væsken i boksen under luftingen at væsken presses ut gjennom en åpning. do in the embodiment in fig. 22 - 26. As a consequence of this, there is also no risk of such an influence on the liquid in the box during the aeration that the liquid is forced out through an opening.

Utforelsen i fig. 32 ligner utforelsen i fig. 22The embodiment in fig. 32 is similar to the embodiment in fig. 22

og 27, med unntagelse av festemåten for lukkefliken til boksenden og den.måte hvorpå boksen luftes under åpningen. and 27, with the exception of the manner of attachment of the closing tab to the box end and the manner in which the box is vented during opening.

I fig. 32 er boksens endefelt 812 utformet med et svingefesteområde 816. Til forskjell fra de tidligere beskrevne utforelser er svingefesteområdet 816 atskilt fra en del av boksens endefelt 812 ved hjelp av en linje 860. Denne linje 860 kan enten være en ikke-gjennomgående svekningslinje, eller den kan være en gjennomgående svekningslinje,. dvs. en som går helt igjennom endefeltet. Linjen 860 isolerer ikke svingefesteområdet 816 helt fra resten av endefeltet 812 idet nemlig svingefesteområdet henger sammen med resten av endefeltet i et område, slik at det dannes en slags halvby 835. In fig. 32, the box's end field 812 is designed with a swing attachment area 816. Unlike the previously described embodiments, the swing attachment area 816 is separated from a part of the box's end field 812 by means of a line 860. This line 860 can either be a non-continuous weakening line, or the can be a continuous weakening line,. i.e. one that goes all the way through the end zone. The line 860 does not completely isolate the swing attachment area 816 from the rest of the end field 812, namely the swing attachment area connects with the rest of the end field in one area, so that a kind of half town 835 is formed.

I området ved svingeféstestedet 816 er det ogsåIn the area of the turning point 816 there is also

et opptrukket parti 834. Til forskjell fra de tidligere beskrevne utforelser er lukkefliken ikke festet til endefeltet 812 ved hjelp av en nagle som går gjennom endefeltet. Isteden er fliken 818 utfort med en oppragende del 816 som går inn i det opptrukkede parti 834 og holdes der ved hjelp av en snepp-tilpassing. a raised portion 834. Unlike the previously described embodiments, the closing tab is not attached to the end field 812 by means of a rivet that passes through the end field. Instead, the tab 818 is extended with a projecting portion 816 which enters the retracted portion 834 and is held there by means of a snap fit.

Som for utforelsen i fig. 27 - 31 åpnes lukket iAs for the embodiment in fig. 27 - 31 open closed in

fig. 32 i tre trinn. Disse er vist i fig. 34 og 35. For åpningen har fliken den stilling som er vist i fig. 33, hvor det fleksible båndlignende element 826 tetter mot innersiden av endefeltet 812. For åpning utover man en trykkraft på det opptrukkede parti 834 som antydet med pilen F-^i fig. 34, fig. 32 in three steps. These are shown in fig. 34 and 35. For the opening, the flap has the position shown in fig. 33, where the flexible band-like element 826 seals against the inside of the end field 812. For opening outwards, a compressive force is applied to the pulled-up part 834 as indicated by the arrow F-^ in fig. 34,

hvorved man bryter tetningen méllom bådn&sLementet 826 og innersiden av. endefeltet 812 ved eller rundt linjen..! 860. Dersom linjen 860 er en ikke-gjennomgående svekningslinje, vil kraften F-^ også tjene til å atskille svingef estestedet 816 fra endefeltet 812 langs linjen 860. Derved luftes boksen. Da området 835 er fremstilt av metall og når det forhbyede parti 834 således trykkes nedover eller innover i boksen, vil det whereby the seal between the boat element 826 and the inner side is broken. the end field 812 at or around the line..! 860. If the line 860 is a non-continuous weakening line, the force F-^ will also serve to separate the swing attachment point 816 from the end field 812 along the line 860. Thereby the box is ventilated. As the area 835 is made of metal and when the obstructed part 834 is thus pressed downwards or inwards into the box, it will

beholde denne nye stilling under_ uthellingen av innholdet i boksen. Fordi partiet 834 forblir inntrykket selv etter at boksen er luftet, vil man med én gang kunne se om en bokse er utilsiktet eller illegalt luftet. retain this new position during the emptying of the contents of the box. Because lot 834 remains the impression even after the can has been aired, one will be able to see at once whether a can has been accidentally or illegally aired.

Det neste trinn under åpningen består i at man utover en trykkraft som antydet med pilen F2på det loftede parti 830 av fliken, hvilket parti strekker seg gjennom tommeåpningen 814, slik det går frem av fig. 35. Derved brytes tetningen mellom båndelementet 826 og innersiden av endefeltet 812 rundt tommeåpningen 814 og ved flikbetjeningsåpningen 824. Den kraft som er nodvendig for å bryte denne tet-ning er sterkt redusert som folge av at boksen allerede er luftet, fordi den kraft som man må utove på partiet 830 ikke behover å overvinne det innvendige trykk i boksen. The next step during the opening consists in applying a pressure force as indicated by the arrow F2 on the lofted part 830 of the flap, which part extends through the inch opening 814, as can be seen from fig. 35. Thereby, the seal between the band element 826 and the inner side of the end field 812 is broken around the thumb opening 814 and at the tab operating opening 824. The force required to break this seal is greatly reduced as a result of the box having already been ventilated, because the force must utove on the part 830 not need to overcome the internal pressure in the box.

Utforelsen i fig. 32 - 35 er fordelaktige derved at linjen 860 muliggjor en lufting av boksen uten fare for at man får en utilsiktet åpning. Dersom boksen er utilsiktet eller illegalt åpnet, så vil man kunne se dette på boksen. Linjen 860 tilveiebringer en lufteåpning som er storre enn den man har i utforelsen i fig. 27 - 31, og dette letter uthellingen av innholdet. The embodiment in fig. 32 - 35 are advantageous in that the line 860 enables the box to be vented without the risk of an accidental opening. If the box is accidentally or illegally opened, you will be able to see this on the box. The line 860 provides an air opening which is larger than the one in the embodiment in fig. 27 - 31, and this facilitates the pouring out of the contents.

De boksender som er anvendt i utfbrelseseksemplene kan være av stål fordi det ikke finnes noen svekningslinjer eller svekkede steder på boksendene. Man kan naturligvis også benytte andre materialer, f.eks. aluminium. Det er foran nevnt visse materialer som kan benyttes i lukkeflikene. Naturligvis kan man også benytte andre egnede materialer. The box ends used in the manufacturing examples can be made of steel because there are no lines of weakness or weakened places on the box ends. You can of course also use other materials, e.g. aluminum. Certain materials have been mentioned above that can be used in the closing tabs. Naturally, other suitable materials can also be used.

Claims

1. Box of the easily openable type including a box body and an end panel which is attached to the box body and has an inch opening, characterized in that a closing tab is pivotably attached to the end panel, the tab including a closing part which has a sealing contact against the end panel on the inside of this near the thumb opening, which closure part extends on the inside of the end field from the thumb opening and to the swing-attachment area for the tab to the end field, which tab further includes a gripping part which is arranged on the outside of the end field to thereby allow the closure part to be pivoted from a closed position to an open position position, as the thumb opening and the tab enable the closing part to be pushed inwards to thereby break the seal between the closing part and the end panel at an opening, while the gripping part remains on the outside of the end panel and thereby facilitates the subsequent swing of the closing tab about an axis essentially parallel to the axis of the box body.

2. Box according to claim 1, characterized in that the closing part has sealing cooperation with the end field in the swing attachment area for the closing part to be swung from the closed position to the open position.

3. Box according to claim 2, characterized in that the closing flap includes a flexible band-like element on the inside of the closing part, for sealing cooperation with the inside of the end field.

4. Box according to claim 1, characterized in that the gripping part extends along the outside of the end field, in the direction from the pivot point.

5. Box according to claim 4, characterized in that the gripping part extends over the inch opening and cooperates with this when it is pushed towards the inside of the box to thereby break the seal between the closing part and the inside of the end field.

6. Box according to claim 5, characterized in that the gripping part includes a projection which can enter the thumb opening.

7. Box according to claim 6, characterized by a sealing device associated with the closing part for isolating the swivel attachment point from the interior of the box body.

8. Box according to claim 7, characterized by an air hole in the end field, which air hole is covered by the closing part when the flap is in the closed position, which air hole is isolated from the interior of the box body by means of a sealing device for the closing flap being moved to the open position.

9. Box according to claim 4, characterized in that the end field includes an outwardly lofted area near the closing part to thereby form a protection against accidental opening.

10. Box according to claim 4, characterized in that the end field includes an outwardly lofted area near the closing part and with an inclined surface which cooperates with the gripping part to thereby provide a swinging movement of the closing tab when the gripping part is pushed inwards towards the closing part to break the seal at the thumb opening.

11. Box according to claim 1, characterized in that the end field includes a tab operating opening arranged between the thumb opening and the pivot attachment point, the grip part extending through the tab operating opening.

12. Box according to claim 11, characterized in that the closing part includes a rigid part and a flexible band-like element which covers the closing part on the inside and has sealing cooperation with the inside of the end field when the closing tab is in its closed position.

13. Box according to claim 11, characterized in that the closing flap is made of plastic material and that the closing part is designed in one with the gripping part.

14. Box according to claim 11, characterized in that the gripping part includes a segment which extends laterally past the circumference of the flap operation opening on the outside of the end panel to thereby be retained on the outside of the end panel after the opening.

15. Box according to claim 14, characterized in that the outside of the grip part includes a roughened surface which facilitates operation with the finger.

16. Box according to claim 15, characterized in that the segment is arranged at a distance outwards from the end field to thereby enable the closing part to be pushed in before the segment comes into contact with the end field.

17. Box according to claim 14, characterized in that the segment is asymmetrically arranged in relation to the tab operating opening.

18. Box according to claim 17, characterized in that the segment extends towards the swing attachment point.

19. Box according to claim 13, characterized in that the outside of the grip part has a roughened surface to thereby facilitate operation with the finger.

20. Box according to claim 1, characterized in that the end field has a lofted area around the inch opening and the swing field location, the closing tab being occupied in the thereby provided recess 1" Tl the end field.

21. Box according to claim 20, characterized in that the flap includes a rigid part whose inner surface is essentially flush with the inner surface of the end field around the lofted area.

22. Box according to claim 21, characterized in that the tab further includes a flexible band-like element which extends over the inner surface and has a sealing system with the surrounding area.

23. Box according to claim 22, characterized in that the rigid part is made of a plastic material.

24. Box according to claim 22, characterized in that the rigid part is made of sheet metal. 2&1 Box according to claim 2'0^, characterized in that the edges of the inch opening are folded in so that the edges of the end field at the opening face mainly from the inch opening.'

26. Box according to claim 25, characterized by a tab operating opening arranged between the thumb opening and the pivot attachment point, the gripping part extending through this tab operating opening.

27. Box according to claim 26, characterized in that the edges of the flap operation opening are folded in so that the edge of the end field in the flap operation opening mainly faces away from the flap operation opening.

28. Box according to claim 1, characterized in that the end field includes an attachment opening at the pivot attachment point, and that the tab includes a protruding attachment part that extends through the attachment opening.

29. Box according to claim 28, characterized in that the attachment part includes an extended part or a head on the outside of the end field.

30. Box according to claim 29, characterized in that the attachment part includes a neck which can be moved axially through the attachment opening.

31. Box according to claim 29, characterized in that the fastening part includes an outer surface intended to be pushed inwards to thereby ventilate the box before the closing part is pushed inwards.

32. Box according to claim 31, characterized in that the fastening part includes a ^Kals which can be displaced axially through the fastening opening when the outer surface of the fastening part is subjected to pressure in an inward direction.

33. Box according to claim 29, characterized in that the end field is folded upwards towards the outer edge at the fastening opening so that the head of the fastening part can interact with the edge of the end field at the fastening opening.

34. Box according to claim 11, characterized in that the gripping part. includes an extended portion or a head portion on the outside of the end field for holding the gripping portion in the tab operating opening when the closing portion is pushed inward.

35. Box according to claim 12, characterized in that the gripping part includes a rigid part which is connected to the closing part, the gripping part including an extended part on the outside of the end field for holding the gripping part in the flap operation opening when the rigid part of the closing part is pushed inwards.

36. Box according to claim 13, characterized in that the gripping part includes an undefined part on the outside of the end field for holding the gripping part in the flap operation opening when the gripping part is pushed inwards.

37. Box according to claim 1, characterized in that the end field. includes at least an outwardly lofted area near the grip part and the tab operating opening to thereby protect against accidental opening of the box.

38. Procedure for opening an easily openable box of the type that includes a box body, an end panel attached to the box body and with an inch opening, a closing flap being pivotably connected to the end panel and having a closing part which has sealing cooperation with the end panel on its inside by the thumb opening, and also has a gripping part, characterized in that the closing tab is pressed inwards at the thumb opening to thereby break the seal between the closing part and the end field, and in that the closing tab is swung in a plane mainly parallel to the end field by exerting a force against the gripping part on the outside of the end field after the seal is broken.

39. Method according to claim 38, characterized in that the closing tab is pressed inwards at the pivot attachment point for venting the box before the closing tab is pushed inwards into the inch opening.

40. A closure for a container of the easily openable type, including a field with an inch opening, a flap that serves the opening and a pivot attachment area, characterized in that a closure flap is pivotally attached to the field in the pivot attachment area so that it can pivot about an axis mainly perpendicular to the plane of the field, which tab includes a closure portion extending along the inside of the field to • cover and seal the thumb opening and the flap operation opening when the closure flap is in the closed position, the flap further including a gripping part which is intended to protrude through the flap operation opening before and after the closure part is pushed inwards into the thumb opening and intended for use during a swing of the closing part to the open position about the aforementioned axis.

41. Close according to claim 40, characterized in that the swing attachment area includes a swing opening and that the closing tab includes a swing part that extends through the swing opening.

42. Close according to claim 41, characterized in that the swing part extends out through the swing opening a distance sufficient to enable an inward displacement of the swing part from the outside of the end field.

43. Close according to claim 42, characterized in that the swing part includes an extended part arranged on the outside of the end field.

44. Close according to claim 43, characterized in that the pivoting part includes a neck which can be displaced axially in the fastening opening.

45. Close according to claim 40, characterized in that the gripping part in the flap operation opening includes an extended part on the outside of the field to thereby hold the gripping part in the flap operation opening when the closing part is pushed inward into the thumb opening.

46. Closure according to claim 40, characterized in that the closure part extends upwards through the inch opening.

47. Close according to claim 40, characterized in that the flap operating opening is arranged in the main case between the thumb opening and the swing attachment area.

48. Close according to claim 40, characterized in that the swing attachment area includes a swing opening and that the closing tab includes a swing part that extends through the swing opening;

49. Close according to claim 48, characterized in that the closing tab includes a plastic material and that the grip part and the swing part are designed as one with each other.

50. Closure according to claim 49, characterized in that the closure part extends upwards through the inch opening.

51. Close according to claim 50, characterized in that the closing tab further includes a flexible band-like element which covers the closing tab on the inside and has sealing cooperation with the inside of the field when the closing tab is in its closed position.

52. Close according to claim 51, characterized in that the grip part in the flap operation opening includes an extended part on the outside of the field for holding the grip part in the flap operation opening when the closure part is pushed inward into the thumb opening.

53. Close according to claim 40, characterized in that the gripping part includes a segment which extends laterally beyond the circumference of the flap operation opening on the outside of the field to thereby be held on the outside of the field after the opening.

54. Close according to claim 53, characterized in that the outside of the grip part includes a roughened surface to facilitate finger operation.

55. Close according to claim 54, characterized in that the segment has a distance from the field so that it is possible to insert the closing part before the segment makes contact with the field.

56. Close according to claim 53, characterized in that the segment is asymmetrically arranged in relation to the tab operating opening.

57. Close according to claim 56, characterized in that the segment extends towards the swing attachment area.

58. Close according to claim 40, characterized in that the outside of the grip part includes a roughened surface to facilitate finger operation.

59. Close according to claim 40, characterized in that the end field includes a lofted area around the inch opening and the pivot attachment point, the closing tab being occupied in the thereby provided recess in the field.

60. Close according to claim 59, characterized in that the tab includes a rigid part whose inner surface is essentially flush with the inner surface of the field around the lofted area.

61. Close according to claim 60, characterized in that the flap further includes a flexible band-like element which extends over the inner surface and has sealing cooperation with the surrounding area.

62. Close according to claim 61, characterized in that the rigid part is made of a plastic material.

63. Close according to claim 60, characterized in that the rigid part <is-, of a sheet metal.

64. Close according to claim 40, characterized in that the edges of the thumb opening are folded in so that the edge of the opening in the end field is mainly directed away from the thumb opening.

65. Close according to claim 64, characterized in that the edges of the flap operation opening are folded inwards so that the edge of the flap operation opening is mainly directed away from the flap operation opening.

66. Close according to claim 40, characterized in that the field includes an attachment opening in the swing attachment location and that the tab includes an outwardly projecting attachment part that extends through the attachment opening.

67. Close according to claim 66, characterized in that the fastening part includes an extended part on the outside of the field for retaining the fastening part in the fastening opening.

68. Close according to claim 67, characterized in that the fastening part includes a neck which can be displaced axially in the fastening opening.

69. Close according to claim 66, characterized in that the field is curved upwards towards the outside at the attachment opening so that the extended part interacts with the edge of the attachment opening.

70. Method for opening a container of the easily openable type which includes a field with a thumb opening, a flap operation opening and a pivot attachment area for a closing flap, the flap including a closing part which has sealing cooperation with the field on its inside at the thumb opening and the flap operation opening, and the tab further includes a gripping part which extends through the similar operating opening, characterized in that the closing tab is pressed into the thumb opening to thereby break at least part of the seal between the closing tab and the end field, that at least part of the gripping part which extends through the flap operating opening is retained in the opening after the sliding wing, and that the swing tab is swung about an axis essentially perpendicular to the field by the influence of the gripping part on the outside of the field.

71. Method according to claim 70, characterized in that the closing tab is pushed inward into the swing attachment area for venting the container for the closing tab is pushed inward into the thumb opening.

72. Method for opening a container of the easily openable type which includes a closing tab, a field with a thumb opening, a flap operation opening and a pivot attachment area for the closing tab, the closing tab having a closing part that has a sealing smacking action with the inside of the field at the thumb opening, the flap operation opening and the swing attachment area and further includes a grip part that extends through the flap operation opening, characterized in that the closure flap is pushed inward into the swing attachment area to thereby achieve aeration of the container, that at least part of the grip part that extends through the flap operation opening is retained in the flap operation opening after insertion, and that the closing flap is swung about an axis essentially perpendicular to the field on the outside of the field by acting on the gripping part.

73. Method according to claim 72, characterized in that the closing tab is pushed inward into the thumb opening to thereby break at least part of the seal between the closing tab and the end field after the closing tab has been pushed inward into the swing attachment area.

74. Method according to claim 72, characterized in that, at the same time as the closing flap is pushed in, a deformation of the field in the swing attachment area is carried out.

75. Closure for a container of the easily openable type, characterized in that it includes a field with an inch opening, a flap operation opening and a swing attachment area, the swing attachment area being connected to a part of the field by means of a semi-city-like area and is separated from the rest of the field , and in that a closing tab is pivotably attached to the field in the pivoting attachment area so that it can pivot about an axis essentially perpendicular to the plane of the panel, which tab includes a closing part that extends along the inner side of the field to thereby cover and seal the thumb opening and the flap operation opening when the closing flap is in its closed A position, the flap further including a gripping part which is intended to project through the flap operating opening before and after the closing part has been pushed inward into the thumb opening, which gripping part is intended for use when swinging the closing part to the open position about the aforementioned axis.

76. Close according to claim 74, characterized in that the swing attachment area is separated from the rest of the box end field by means of a weakening line which is not completely continuous.

77. Close according to claim 74, characterized in that the swivel attachment area is separated from the rest of the box end by means of a continuous weakening line.

78. Close according to claim 74, characterized in that the swing attachment area includes a lofted part.

79. Close according to claim 77, characterized in that the flap includes a projecting part which cooperates with the aforementioned lofted part.

80. Close according to claim 78, characterized in that the projecting part is attached to the lofted part by means of a snap fitting._'

81. Box end of the easily openable type, characterized in that it comprises an end panel with a thumb opening and a separate opening spaced therefrom, and a tab which closes the thumb opening and is intended to be pushed inwards to thereby open the thumb opening, which tab includes a attachment part which extends through said separate opening to thereby attach the tab to the end field before and after the tab is pushed inwards.

82. Box end according to claim 81, characterized in that the tab includes a projection that extends upwards into the thumb opening for use during insertion of the tab.

83. Box end according to claim 81, characterized in that the end field has a downward-directed buoy at the edge of the inch opening.

84. Box end according to claim 81, characterized in that the end field includes a downward and radially outward continuous buoy at the edge of the inch opening.

85. Box end according to claim 81, characterized in that the end field projects outwards at the thumb opening and the aforementioned separate opening so that a recess is formed in which the tab is arranged when the thumb opening is closed.

86. Box end according to claim 81, characterized in that the flap includes a flap part and a sealing part which extends from the flap part to the end field.

87. Box end according to claim 86, characterized in that the sealing part includes a band-like element.

88. Box end according to claim 87, characterized in that it further includes a band-like sealing device which extends across the tab part in the aforementioned recess and to the end field at the perimeter of the recess.

89. Box end of the easily openable type, characterized in that it includes an end panel with an inch opening arranged between the center and the circumference of the end panel, as well as a flap which is attached to the end panel and includes a closing part, an operating part and a fastening part, the closing part covering the inch opening , the operating part protrudes so that it can be easily affected by a finger, and the fastening part is attached to the end field, the operating part being more centrally arranged on the end field than the center of the closing part is, and the fastening part being more centrally located than the operating part is.

90. Box end according to claim 89, characterized in that the tab includes a plastic material.

91. Box end according to claim 90, characterized in that the tab includes a metal material.

92. Box end according to claim 91, characterized in that the end field includes an operating opening which is more centrally arranged than the inch opening is, as the operating part extends through the operating opening.

93. Box end according to claim 92, characterized in that the end field has a rivet-receiving opening and that the attachment part includes a rivet which is intended to protrude through the rivet-receiving opening.

94. Box end of the easily openable type, characterized in that it includes an end field with a thumb opening and an operating opening, as well as a tab which is attached to the field and includes a closing part, an operating part and a fastening part, the closing part covering the thumb opening and the operating part protruding through the operating opening so that it can be easily affected with the finger, and the attachment part is attached to the end field.

95. Box end according to claim 94, characterized in that the end field includes a lofted part near the operating opening to thereby protect against an accidental opening.

96. Box end according to claim 94, characterized in that the end field includes a pair of lofted parts on opposite sides of the operating opening to thereby protect against accidental opening.

97. Box end according to claim 94, characterized in that the flap includes a flap part and a sealing part.

98. Box end according to claim 97, characterized in that the sealing part includes a band-like element which extends between the tab part and the end field on the inside of the end field;^

99. Box end according to claim 98, characterized in that the band-like element extends over the inside of the flap part and to the inside of the end field.

100. Box end of the easily openable type, characterized in that it includes a metal -..positioned end panel with an inch opening, and a tab which closes the inch opening and is intended to be able to be pushed inwards to thereby open the inch opening, the tab including a fastening part which extends to the outside of the end panel and is attached thereto for securing the tab to end field when the tab is pushed in and frees the edges of the end field in the thumb opening.

101. Box ends of the easily openable type,. characterized in that it includes an end field with a thumb opening, and a tab which closes the thumb opening and is intended to be pushed inwards to thereby open the thumb opening, the tab including a fastening portion extending from the inner side to the outer side of the end panel at a distance from the thumb opening.