EP0048890B1 - Récipient léger - Google Patents

Récipient léger Download PDF

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Publication number
EP0048890B1
EP0048890B1 EP19810107280 EP81107280A EP0048890B1 EP 0048890 B1 EP0048890 B1 EP 0048890B1 EP 19810107280 EP19810107280 EP 19810107280 EP 81107280 A EP81107280 A EP 81107280A EP 0048890 B1 EP0048890 B1 EP 0048890B1
Authority
EP
European Patent Office
Prior art keywords
metal container
container according
dome
lip
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19810107280
Other languages
German (de)
English (en)
Other versions
EP0048890A1 (fr
Inventor
Donald J. Roth
Charles S. Kubis
John Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Group Inc
Original Assignee
Continental Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/191,226 external-priority patent/US4452368A/en
Application filed by Continental Group Inc filed Critical Continental Group Inc
Priority to AT81107280T priority Critical patent/ATE10728T1/de
Publication of EP0048890A1 publication Critical patent/EP0048890A1/fr
Application granted granted Critical
Publication of EP0048890B1 publication Critical patent/EP0048890B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2684—Cans or tins having circumferential side seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/16—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers with handles or other special means facilitating manual actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/14—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means
    • B65D47/141—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means for stoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
    • B65D7/34—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls
    • B65D7/38—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls formed by soldering, welding, or otherwise uniting opposed surfaces

Definitions

  • This invention relates to lightweight metal containers such as may be used to contain a beverage.
  • Containers of the general type under consideration are primarily made of aluminum and have a cylindrical body with an integral bottom.
  • the top is usually closed by a generally flat end member of different alloy than the body which is usually H 19-3004.
  • the present commercial aluminum containers including ends weigh approximately 0.018-0.020 kg (0.040-0.045 pounds) each.
  • the single service beverage cans of the 1960's includes a three-piece steel body, steel bottom and an aluminum top.
  • the most popular can of the 1970's was an all aluminum drawn and wall-ironed can with a double seamed top.
  • the top was of a different alloy than the can body.
  • Aluminum because of its light weight and ductility and being able to be easily cast, is finding growing uses, most recently in the automotive industry. Material costs are rapidly escalating and the supply is dwindling. Various structures have been made to shape the bottom of the can to obtain more volume with less strength. Inverted or concave bottoms were provided on the 1970 vintage cans to resist the pressure of the contents, however, this design is wasteful of the material in that a taller than necessary can must be provided necessitating additional material to obtain the desired volume. Furthermore, the flat top end on such cans requires the use of a strong alloy aluminum material having a magnesium content. The compositions of the body and that of the end of each can, being different, complicates recycling of the cans.
  • steel cans on the other hand, because of the thickness of the metal used, require high tonnage presses and tools must be more frequently replaced. When thick metal is used, the costs and carrying weights become excessive. In order to obtain an easy opening feature, steel cans invariably use aluminum tops which complicates recycling. The aluminum and the steel must be separated which is a time consuming costly process. The attractiveness of steel for cans is the lower cost of the metal and its great availablity.
  • U.S.-A-2,197,434 relates to a metal container comprising a body, a top including a lower cylindrical lip and a conical inner and upper portion, the upper portion of the body and the cylindrical lip of the top forming a lapped joint.
  • the object of this invention is to provide a metal container which uses less material but retains the strength characteristics of the present containers.
  • the present invention provides a metal container comprising a body, a top including a lower cylindrical lip and a conical inner and upper portion, the upper portion of said body and said cylindrical lip of said top forming a lapped joint, characterized in that the adhesive layer is provided between said body and said top at said lapped joint, said container top comprises a dome in which said lip merges at its upper edge into a toroidal curve which merges into said conical inner and upper portion and wherein under internal pressure said conical portion is deformed generally axially upward and said toroidal curve is deformed generally radially inwardly with said lip being tilted radially inwardly to compress at least an upper part of said adhesive layer.
  • the concave bottoms of the principal current designs 0.0355 cm (0.014 inch) thick are replaced on the can of this invention formed of aluminum by a convex bottom about 0.0203 cm (0.008 inch) thick which results in a container of increased volume using less aluminum.
  • the double seam of the current containers which also consumes aluminum is eliminated by substituting an adhesive telescoped joint.
  • the top or dome of the new container may be about 0.229 mm (about 9 mils) thick compared to the double seam flat top of 0.356 mm (about 14 mils) thickness of the current containers.
  • the heavy flange thickness 0.178 mm (about 7 mils) of double seamed cans is not required and is reduced to 0.102 mm (4 mils).
  • a total package weight of about 9.07 kg (20 pounds) per one thousand cans is obtained versus 17.23-18.14 kg (38-40 pounds) per one thousand cans of the present lightest weight aluminum cans.
  • the two pieces of the new can are assembled at the can plant and later filled through the small drink hole using conventional bottle fillers.
  • steel cans 0.051-0.0635 mm (2 to 2-1/2 mils) in wall thickness are feasible.
  • the elimination of a special alloy for the can ends by making the can of one alloy produces a uni-alloy can, therefore making it more valueable as scrap for recycling.
  • the improved can remains cleaner, has better pourability and can be reclosed and resealed.
  • the new container provides a top which increases container volume and can be as easily used for 0.47 I (16 ounce) cans as well as for 0.35 I (12 ounce) cans or even 0.28 I (10 ounce) cans merely by lengthening or shortening the can body.
  • a further feature of the new container is that it can be made on present existing equipment without excessive capital investment.
  • Advantage is taken of the shape of the top and of the thinness of about 0.022 cm (0.009 inch) and short axial length of the top with respect to the body length of the container to which the top is applied by shaping the top in a manner such that on filling the container with pressurized beverage internal pressure forces are exerted on the cone section of the top to cause beamloading of the cone section to exert inward forces on the lip at the base of the cone portion to assist the adhesive by applying compressive forces thereagainst and to the portion of the opposing body portion at the telescoped junction of the body and top. Peeling forces on the adhesive in the bonded telescoped junction as would ordinarily occur under internal pressure loading are thus eliminated.
  • Various configurations of the top portion are shown which obtain specific benefits as hereinafter defined.
  • the body In 0.35 I (12 ounce) cans, the body has a diameter of 6.60 cm (2.60 inches) and an axial length of 10.16 cm (4 inches) whereas in the 0.47 I (16 ounce) can the body length or height is 12.06 cm (4.75 inches).
  • the toroidal section which provides the transition between the sloping conical section and the axial lip section, is arcuate in cross section and has a radius of 0.158 to 0.635 cm (1/16 to 1/4 inch). It has been found that as the material used becomes thinner, the radius must be made larger. If the beaming forces were to be restricted or with a sharp angle at the juncture, the conical portion would buckle and wrinkle adjacent to the lip.
  • the invention comprehends providing a transition between the cone and the lip such that internal pressure forces tending to expand the conical section as well as the toroidal portion are utilized to produce a compressive force radially inwardly on the adhesive which together with the tensile forces tending to expand the upper end of the body portion ensures parallelism between opposing body and lip portions and thus precludes developing voids such as would produce leaking joints.
  • the invention comprehends making an adhesively bonded joint as an extremely narrow axial band on the order of 0.158 to 0.317 cm (1/16 to 1/8 inch) which is now feasible because of the compressive loading on the adhesive.
  • the wall thickness of both the top and bottom sections of the can would be on the order of 2 to 2-1/2 mils thick or 0.30 mm (.0118 inch) thick.
  • FIG. 1-5 of the drawings An embodiment of the invention is shown in Figures 1-5 of the drawings as comprising a container, generally designated 1, preferably entirely formed of one alloy of aluminum such as H19-3004.
  • the container has a lower or bottom portion 2 and a top portion or dome 3.
  • the lower portion 2 comprises a bottom 4 and an integral cylindrical body 6 which at its upper end 8 is necked-in to provide a radially inwardly extending shoulder 10 about 0.0793 to 0.158 cm (1/32 to 1/16 inch) wide and about the inner edge of which there is an axially extending annulus or ring 12 of approximately 0.317 cm (1/8 inch) in length.
  • the annulus or ring 12 preferably has a tight or interference fit into the lower end of an annular band or lip 14 of the dome 3 which is of an axial length corresponding to that of the ring 12 while the dome 3 is about 2.12 cm (.837 inch) in total axial height.
  • the upper edge of the lip 14 merges into the lower edge of a toroidal or arcuate transition section 15 which at its upper edge merges into the lower edge of a conical section 16.
  • the section 15 has a radius of between 0.158 to 0.635 cm (1/16 to 1/4 inch) preferably the thinner the metal, the greater the radius.
  • the conical section 16 shown in Figures 1 and 5 is preferably of a stepped design and comprises a frustoconical annular band 18 which merges at its lower edge with the upper edge of the toroidal section 15 and the upper edge of the band 18 merges with the lower edge of a conical segment 20 which at its upper edge, in turn, merges into the lower edge of a second smallerfrustoconical band 22.
  • the band 22 has its upper edge merging into the lower edge of a second frustoconical segment 24 which, at its upper edge, merges into a curl 25 which is turned outwardly over the second segment 24.
  • the lower edge of the lip 14 is provided with an outturned downwardly flaring frustoconical or curled flange 26 which has an outer edge substantially coaxial with an external circular surface 30 and the body portion of the container.
  • thermoplastic resin or adhesive 32 such as polyvinyl chloride and thermoplastic resin such as polyethylene or polypropylene or alternatively thermosetting epoxy resin, or vinyl plastisol is applied to an outer side 34 of the ring 12 and to an inner surface 36 of the lip prior to assembly of the dome to the lower portion so that after assembly the assembled can may be heated to a temperature melting the plastic adhesive during which time the top and bottom portions of the can may be relatively axially or circumferentially moved to eliminate any pinholes or the like formed in the adhesive and to promote good adhesion of the adhesive to the metal parts. Upon cooling, the adhesive 32 bonds the telescoped parts together.
  • a metal closure 40 is shown in Figures 1-10 for purposes of illustration, it being understood that plastic closures of various kinds such as shown in Figures 11-13 may also be used.
  • the closure comprises a center plug 42 which fits into the pour opening 44.
  • the plug has an axially extending side wall 45 which at its lower end is connected to a bottom wall 46 and at its upper end has a downwardly open outward curl 48 which overlies the convex upper side 49 of the curl 25 and is drawn tightly against a foam gasket sealing material 50 applied thereto by mechanically crimping and expanding the side wall 45 of the plug to form a shoulder 51 under the curl.
  • the wall 46, side wall 45 and curl 48 are scored at 52, 52 and a ring type opener 55 is formed with the closure or cap and bent downwardly to extend generally parallel with the conical section of the upper portion.
  • the closure is readily opened by lifting the ring 55 thus breaking the scores 52, 52 and thus lifting the closure out of the pour opening.
  • the side wall of the body portion of the can may be made of aluminum having a substantially uniform thickness on the order of 0.102 mm (4 mils).
  • the side wall thickness has been maintained substantially uniform from end to end, there being no necessity for a thick zone about the open end since the double seaming has been eliminated. It is, however, feasible to make the entire side wall of the container, except for the extreme top, of a metal thickness of about 0.102 mm (4 mils) and the bottom of about 0.102-0.203 mm (4-8 mils).
  • variable thicknesses may be incorporated in various zones of the side wall.
  • the telescoping arrangement of the lip of the top and the necked-in band of the bottom portion and the provision of the outturned flange on the lower edge of the lip has been found to provide exceptional resistance to impact breeching of the connection.
  • the flange 26 materially improved the radial strength of the lip portion of the top and the configuration of the lip and toroidal and conical sections develop a compression loading on the connection which together with the radial shoulder and necked-in band of the lower section resist inward displacement and thus do not extend peel stresses to the adhesive.
  • the top portion of the container is an unstepped conical section.
  • the transition from the toroidal section 15 to the curl is a smooth single conical section 60, a design which is satisfactory depending on the stacking strength required of the container.
  • the necked-in structure at the upper end of the body section is eliminated and the upper end of the body portion 6 is a continuous cylinder which is slightly precompressed and fitted into the lip 14 of the top portion 3. The adhesive is thus held in compression between the lip 14 and the upper portion of the body 6.
  • the bottom and top portions of the container are generally of the same diametrical dimension.
  • the bottom portion is precompressed about its upper edge portion 8 prior to insertion into the top lip 14 of the upper portion and then is released compressing the adhesive 32 between the inner surface of the lip and the outer surface of the upper portion 14.
  • the adhesive is preferably a thermoplastic type such that after the container portion of any of the previous or subsequent embodiments are assembled and they are passed through a heating chamber, the adhesive melts and fuses the top and bottom portions into a unitary structure.
  • the joint is flexible because of the wall thicknesses being of the order of 4-9 mils, preferably the former for the body portion 6, and the adhesive is flexible.
  • the extremely thin section of material that is the metal and the plastic adhesive, allows the joint to flex inwardly thus attenuating the forces and inhibiting these forces from applying peeling loads on the adhesive and separating the inner portion from the lip.
  • the top is made to accommodate a different type of closure 100.
  • the neck 102 at the top of the stepped cone 104 is elongated and has an inturned frustoconical lip 105 which forms a smooth apical annulus 106 against which the bottom side 108 of a radial flange 110 of the plastic closure 100 seats.
  • the flange 110 is connected to a hollow sleeve 114 which fits into the lip 105 and has external sealing shoulders or rings 115 and 116. Shoulder 115 wedges against the top internal angular surface 117 of the lip 105 and the shoulder 116, which is at the bottom of the sleeve 114, underlaps the lower edge 118 of the lip 105 and tightly engages therewith.
  • an integral tearable thin membrane 122 which is also integral with the outer peripheral edge portion 124 of a depressed closure plug 125 which is integrated with a hinge ring 126 connected by hinge 127 to the flange 110 and at the diametrically opposite side to a pull tab 130 which is angled downwardly toward the cone top portion. Lifting of the tab rips the membrane 122 and opens the container.
  • the bottom 4 of the container is convex and has feet 75.
  • the bottom wall thickness is usually the initial thickness of the blank sheet preparatory to forming of the can, that is 0.254-0.152 mm (10-6 mils), preferably 0.203 mm (8 mils), thick.
  • the body wall 6 is ironed to about 0.127 mm (5 mils) or less.
  • the top portion 3 is also less than 0.254 mm (10 mils) thick, preferably 0.102-0.228 mm (4-9 mils), and the pour opening 44 is less than 30% of the bottom area.
  • the angle of the conical portions is between 10-45 degrees, preferably 22-1/2, in the stepped designs, as well as in the unstepped design of Figure 6. However, to obtain greater axial strength, an angle of 45 degrees would be preferred, but that is dependent upon other desired parameters as will be described in more detail hereinafter.
  • the stepped design greatly improves the axial strength of the top.
  • the dome 3 has a wall thickness t1 on the order of 0.228 mm (9 mils).
  • the can body 8 has a wall thickness t2 of 0.081 mm (4 mils), but increases at its extreme upper end to a wall thickness t3 of 0.075 mm (6 mils) for a distance generally on the order of 0.152 cm (0.06 inch).
  • the extreme upper end of the body 8 is provided with a radially inwardly directed curl 29.
  • the ring 12 is radially inwardly offset and has an axial height on the order of 0.304 cm (0.12 inch).
  • the lip 14 has a like axial extent and the torroidal section 15 has a preferred radius R1 of 0.304 cm (0.12 inch). The extent of the torroidal section 15 is such that the conical section 16 is disposed at an angle to the horizontal on the order of 22-1/2 degrees.
  • the necking-in of the upper portion of the can body 8 provides a radially inwardly offset on the order of 0.152 cm (0.06 inch) with the shoulder 10 being joined to the ring 12 by a radius R2 to the remainder of the body 8 by a radius R3 which is also on the order of 0.152 cm (0.06 inch). It is to be noted that the shoulder 10 slopes upwardly and radially inwardly between the body 8 and the ring 12.
  • Figure 16 wherein there is illustrated the geometry of the can which corresponds to Figure 15 and was considered as the basic can construction under consideration.
  • Figure 17 there is illustrated both the original shape in solid lines and the deformed shape in dash lines of the can in the area of the joint between the body and the dome when the can was subjected to 7.03 kg/cm 2 (100 psi) internal pressure.
  • a can was constructed as shown in Figure 19 wherein the dome 3 included a cylindrical portion 27 having an axial length of 1.27 cm (0.5 inch).
  • the dome 3 included a cylindrical portion 27 having an axial length of 1.27 cm (0.5 inch).
  • the force and moments of this modified can construction are generally the same as those of the standard, as indicated in Table I.
  • a can as illustrated in Figure 21 was considered.
  • dome angles of 10°, 45° and 90° were analytically tested. As shown in Table I, a dome angle of 10° was shown to be less desirable than a dome angle of 22.5° under both internal pressurization and axial fitment loading.
  • the can with a modified radius of the neck-in was analytically tested with a neck-in radius of 0.076 cm (0.030 inch), and as is clearly shown in Table I, the results were not as good as when the radius was 0.152 cm (0.060 inch).
  • the adhesive is applied to the body ring 12 and there is an interference fit between the dome and the body, any extra adhesive on the body, and there will always be some, will flow into the lower part of the lap and thus fill the free space between the lower edge of the dome and the adjacent portion of the body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Packages (AREA)

Claims (20)

1. Récipient métallique comprenant un corps (2), un dessus (3) comportant une lèvre cylindrique inférieure (14) et une partie conique intérieure et supérieure (16, 18, 20, 22, 24, 60), la partie supérieure (12) dudit corps (2) et ladite lèvre cylindrique (14) dudit dessus formant un joint à superposition, charactérisé en ce qu'une couche adhésive (32) est formée entre ledit corps et ledit dessus (3) sur ledit joint à superposition, ledit dessus du récipient comprend une voûte (3) dans laquelle ladite lèvre (14) se transforme à son bord supérieur en une couche toroïdale (15) qui se transforme en ladite partie conique intérieure et supérieure (16, 18, 20, 22, 24, 60) et dans lequel sous l'effet de la pression interne, ladite partie conique est déformée d'une façon générale axialement vers le haut et ladite courbe toroïdale (15) est déformée à peu près radialement vers l'intérieur, ladite lèvre (14) étant inclinée radialement vers l'intérieur pour comprimer au moins une partie supérieure de ladie couche adhésive (32).
2. Récipient métallique selon la revendication 1, caractérisé en ce que ledit adhésif (32) est du type dans lequel la résistance au cisaillement augmente avec la compression dudit adhésif.
3. Récipient métallique selon la revendication 1, caractérisé en ce que ledit adhésif est un adhésif flexible.
4. Récipient métallique selon la revendication 1, 2 ou 3, caractérisé en ce que ledit corps (2) dans la zone générale du joint superposé est déformé radialement vers l'extérieur, la déformation combinée de ladite voûte et dudit corps comprimant ladite couche d'adhésif.
5. Récipient métallique selon la revendication 4, caractérisé en ce que ladite voûte (3) présente une épaisseur de paroi plus grande que ledit corps (2) de sorte que la résistance de ladite voûte à l'emplacement dudit joint à superposition à l'encontre d'une déformation dirigée radialement vers l'extérieur est plus grande que celle dudit corps.
6. Récipient métallique selon la revendication 4 ou 5, caractérisé en ce qu'une portion terminale supérieure (8) dudit corps (2) est rétrécie pour définir une bague supérieure déportée radialement vers l'intérieur (12) reliée à une portion adjacente dudit corps par un épaulement (10) inclinée radialement vers l'intérieur et axialement vers le haut, et la pression interne dans ladite boîte fonctionnant pour redresser ledit corps dans la zone générale dudit épaulement (10) pour déformer au moins une portion inférieure de ladite bague (12) radialement vers l'extérieur pour comprimer au moins une partie inférieure de ladite couche adhésive (32).
7. Récipient métallique selon la revendication 6, caractérisé en ce que les étendues axiales de ladite lèvre (14) et de ladite bague (12) sont sensiblement les mêmes et ladite lèvre et ladite bague sont en superposition totale.
8. Récipient métallique selon la revendication 6 ou 7, caractérisé en ce que ladite voûte (3) se termine par une boucle (26) tournée vers le dehors et radialement la plus basse et ladite boucle surmonte ledit épaulement (10) dans un prolongement axial dudit corps, ladite boucle formant des moyens pour faciliter l'assemblage télescopique de ladite lèvre et de ladite bague.
9. Récipient selon la revendication 8, caractérisé en ce que ladite couche adhésive (32) s'étend entre ladite boucle (26) et ledit épaulement (10).
10. Récipient métallique selon la revendication 6, 7 ou 8, caractérisé en ce que ledit corps (2) se termine par une boucle (29) dirigée radialement vers l'intérieur et occupant la plus haute position, ladite boucle (29) formant des moyens pour faciliter l'assemblage télescopique de ladite lèvre (14) et de ladite bague (12).
11. Récipient métallique selon l'une quelconque des revendication 6 à 10, caractérisé en ce qu'un ajustage d'interférence est établi entre ladite lèvre (14) et ladite bague (12), de sorte qu'à l'état non chargé de ladite boîte, la couche adhésive (32) est dans un état comprimé.
12. Récipient métallique selon l'une quelconque des revendications 1 à 11, caractérisé en ce que dans ladite portion conique, on a prévu au moins un gradin annulaire (18, 22).
13. Récipient métallique selon l'une quelconque des revendications 1 à 12, caractérisé en ce que ladite portion conique (16, 18, 20, 22, 24, 60) est disposée suivant un angle à l'horizontale compris en général entre 10 et 45°.
14. Récipient métallique selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit corps (2) présente un fond (4) et ladite voûte (3) comprend une ouverture (44) recevant un élément d'assemblage, ladite ouverture (44) ayant une surface inférieure à 30% de la surface dudit fond (4).
15. Récipient métallique selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite voûte présente une longueur axiale qui est courte par comparaison audit corps (2).
16. Récipient métallique selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit corps (2) et ladite voûte (3) sont tous deux en aluminium, ladite voûte présente une épaisseur de paroi de l'ordre de 0,0228 cm (0,009 pouce) et ledit corps a une épaisseur de paroi de l'ordre de 0,0101 cm (0,004 pouce).
17. Récipient métallique selon l'une quelconque des revendication 1 à 15, caractérisé en ce que ladite boîte est formée en tôle d'acier.
18. Récipient métallique selon l'une quelconque des revendications 1 à 15, caractérisé en ce que ledit corps est en tôle d'acier dont l'épaisseur ne dépasse pas 0,0050 cm (0,002 pouce).
19. Récipient métallique selon l'une quelconque des revendications 1 à 15, caractérisé en ce que ledit corps. est en tôle d'acier d'une épaisseur de l'order de 0,0076 cm (0,003 pouce).
20. Récipient métallique selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit corps, ladite voûte et ledit joint superposé peuvent tous supporter une charge axiale de 36 kg (80 livres) dans l'état du récipient vide et sous une pression interne de 7,03 kg/cm2 (100 psi).
EP19810107280 1980-09-26 1981-09-15 Récipient léger Expired EP0048890B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107280T ATE10728T1 (de) 1980-09-26 1981-09-15 Leichtbehaelter.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US19122580A 1980-09-26 1980-09-26
US191225 1980-09-26
US06/191,226 US4452368A (en) 1980-09-26 1980-09-26 Lightweight container
US191226 1994-02-03

Publications (2)

Publication Number Publication Date
EP0048890A1 EP0048890A1 (fr) 1982-04-07
EP0048890B1 true EP0048890B1 (fr) 1984-12-12

Family

ID=26886872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810107280 Expired EP0048890B1 (fr) 1980-09-26 1981-09-15 Récipient léger

Country Status (9)

Country Link
EP (1) EP0048890B1 (fr)
AU (1) AU542031B2 (fr)
BR (1) BR8106173A (fr)
CA (1) CA1163584A (fr)
DE (1) DE3167726D1 (fr)
DK (1) DK425981A (fr)
ES (1) ES510422A0 (fr)
GB (1) GB2084107B (fr)
GR (1) GR75018B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109986B1 (fr) * 1982-11-19 1987-03-11 Toyo Seikan Kaisha Limited Récipient en métal réétiré avec joint circonférentiel
DE3925069A1 (de) * 1989-07-28 1991-02-07 Schmalbach Lubeca Zwei- oder dreiteiliger behaelter, insb. aus blech
DE3925068A1 (de) * 1989-07-28 1991-02-07 Schmalbach Lubeca Zwei- oder dreiteiliger behaelter, insb. aus blech
DE102006021020A1 (de) * 2006-05-05 2007-11-08 Man Nutzfahrzeuge Ag Behälter in einem Kraftfahrzeug

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2384810A (en) * 1940-05-13 1945-09-18 Crown Cork & Seal Co Container

Also Published As

Publication number Publication date
AU542031B2 (en) 1985-01-31
EP0048890A1 (fr) 1982-04-07
GB2084107B (en) 1984-02-15
GR75018B (fr) 1984-07-12
DK425981A (da) 1982-03-27
CA1163584A (fr) 1984-03-13
AU7568681A (en) 1982-04-01
ES8303228A1 (es) 1983-02-01
ES510422A0 (es) 1983-02-01
BR8106173A (pt) 1982-06-15
DE3167726D1 (en) 1985-01-24
GB2084107A (en) 1982-04-07

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