EP0337500B1 - Récipient - Google Patents

Récipient Download PDF

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Publication number
EP0337500B1
EP0337500B1 EP19890109413 EP89109413A EP0337500B1 EP 0337500 B1 EP0337500 B1 EP 0337500B1 EP 19890109413 EP19890109413 EP 19890109413 EP 89109413 A EP89109413 A EP 89109413A EP 0337500 B1 EP0337500 B1 EP 0337500B1
Authority
EP
European Patent Office
Prior art keywords
container
arcuate
annular
radius
wall
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.)
Revoked
Application number
EP19890109413
Other languages
German (de)
English (en)
Other versions
EP0337500A3 (en
EP0337500A2 (fr
Inventor
Sam C. Pulciani
Raymond Mikas
Robert M. Wyleta
Robert M. Szczerba
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.)
Rexam Beverage Can Co
Original Assignee
American National Can Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27097364&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0337500(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US06/657,224 external-priority patent/US4620434A/en
Priority claimed from US06/736,428 external-priority patent/US4685582A/en
Application filed by American National Can Co filed Critical American National Can Co
Publication of EP0337500A2 publication Critical patent/EP0337500A2/fr
Publication of EP0337500A3 publication Critical patent/EP0337500A3/en
Application granted granted Critical
Publication of EP0337500B1 publication Critical patent/EP0337500B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B65D1/165—Cylindrical cans

Definitions

  • a container of the type according to the pre-characterising part of claim 1 is known from WO-A-83/02577.
  • a hollow support surface of this known container extends around the central domed panel.
  • the support surface is incorporated in a transitional portion connecting the periphery of a central panel to the side wall.
  • the transitional portion consists of an annular wall extending from the periphery of the central panel to an outwardly convex bead of arcuate cross-section forming the support surface on which the can body may stand.
  • the bottom wall shape enables filled cans to be stacked.
  • the beads can be engaged in a lid of another can within the double seam produced when fixing the lid to the can body.
  • the double seam is arranged to nest in the concavity.
  • the container can be formed using reduced thickness stock material without increasing the diameter of the disc-shaped stock material.
  • the new container has excellent column strength, buckle strength and resistance to harsh handling, while a the same time incorporates a nesting feature for allowing the bottom profile wall to nest with the end attached to the reduced neck portion of the container.
  • the bottom profile includes a spherically, inwardly-domed portion surrounded by a generally U-shaped annular segment defining a lower support for the container with the annular segment preferably having a diameter of about 80% of the diameter of the side wall.
  • a specifically configured annular joining segment is integral with the side wall and the U-shaped annular segment with the joining segment including a first annular arcuate portion having an interior radius and a second annular arcuate portion having an exterior radius to produce an annular support point for nesting with an end on an adjacent container.
  • the particular domed profile is configured to eliminate the need of any metal reversal during the formation of the bottom profile at the end of a drawing and ironing operation, and the profile incorporates specifically, dimensioned radii and segments that simplify the metal-deforming process so that the containers can be manufactured at acceptable production rates.
  • Fig. 1 of the drawings discloses a fragmentary portion of a container, generally designated by reference numeral 10, having a generally cylindrical side wall 12 and an integral end wall 14.
  • Container 10 is what is commonly known as a “drawn and ironed container” wherein a flat circular metal disc is converted into a shallow cup in a press, commonly referred to as a "cupper". The shallow cup is then delivered to a drawing and ironing machine, commonly referred to as a "bodymaker” wherein the cup is reformed to reduce the diameter thereof and increase the height by reducing the thickness of the side wall. The end wall is subsequently reformed at the end of the stroke of the punch that forms part of the press or bodymaker. After the end wall or bottom has been reformed to the particular bottom profile, the container has a reduced neck 16 formed around the open end and an outwardly-directed flange 18 with the flange being utilized for double-seaming an end thereto.
  • the bottom profile of the drawn and ironed container is configured such that the bottom of one container will nest within the end of an adjacent container attached to the reduced neck and the container is still capable of withstanding internal pressures in the order of 7.03 kg/cm2 (100 psi) and also has a column strength of approximately 159 kg (350 pounds) or greater. Moreover, the present container has exhibited excellent results in drop-tests that have recently become a criteria in the beer and beverage industry.
  • the lower end 14 of the container 10 includes a center domed portion 20 (Fig. 3) surrounded by an annular U-shaped portion 22 and an annular joining segment 24 integral with the side wall 12 and the U-shaped portion 22.
  • the center domed portion 20 has a spherical radius R1 and is joined to the U-shaped portion by an arcuate segment 26 having a radius R2.
  • the U-shaped portion 22 includes an annular, substantially vertical wall 28 and an outer annular wall 30 interconnected by an annular arcuate lower segment 32 having an interior radius R3.
  • the lower segment 32 defines an annular support surface 34 for the container 10.
  • the inner annular wall 28 is substantially vertical and defines an included angle with respect to a vertical axis (not shown) through the container which is as close to zero as possible, while the outer annular wall 30 defines an angle A.
  • the joining segment 24 includes a first annular arcuate portion 36 having an exterior radius R4 and a second annular arcuate portion 38 having an interior radius R5.
  • the particular radii and dimensions of the various parts that form the integral lower end 14 of the container are important to the overall performance of the container when filled with pressurized contents and also incorporates a nesting feature which will preclude "wobbling" when two filled containers are stacked on each other.
  • a container having a cylindrical side wall diameter D1 of 65.964 mm (2.597 inches) was formed from a flat circular disc having a diameter of 139.573 mm (5.495 inches) and a thickness of 0.3251 mm (0.0128 inch). The disc was first converted into a cup and then converted to a finished drawn and ironed container using tooling shown in Fig. 2, to be described later.
  • the container center dome 20 has a spherical radius R1 of 53.848 mm (2.120 inches) with the radius R2 of segment 26 being 1.27 mm (0.050 inch).
  • the lower annular arcuate support had a radius R3 of 1.016 mm (0.040 inch) and the angle A for wall segment 30 was 27°30' and the angle for wall segment 28 was less than 5°, preferably as close to vertical as possible.
  • the exterior radius R4 was 2.54 mm (0.100 inch), while the interior radius R5 was 5.08 mm (0.200 inch).
  • the support diameter D2 for the container was 50.80 mm (2.000 inches), while the diameter D3 for the center of the radius R4 was 60.071 mm (2.365 inches) and the diameter D4 for the center of the radius R5 was 55.55 mm (2.187 inches).
  • This type of container was then filled with beverage and an end 40 was seamed to the reduced neck portion 16 by a double seam 42 (Fig. 4).
  • the end was a standard commercial 206 End.
  • Fig. 5 of the drawings shows the nesting relation between two containers stacked upon each other. It should be noted that the annular arcuate segment 36 has continuous extended contact with the double seam 42 and the U-shaped annular segment 22 is partially wedged into the double seam to prevent tilting of the upper container with respect to the lower container.
  • the diameter D2 was less than 80% of the, diameter D1 of the container.
  • the relationship between the diameter of the support surface 34 and the spherical radius R1 of dome 20, along with the vertical annular wall 28, is believed to add strength characteristics.
  • the fact that the joining segment has two arcuate segments 36 and 38 having significantly different radii, with radius R5 being about twice the radius R4, provides excellent internal pressure resistance.
  • Fig. 2 of the drawings shows the tooling used for forming the bottom profile of the present invention.
  • the tooling includes a center dome pad 50, an outer annular forming element 52 and a punch 54.
  • the center dome pad 50 has an upper spherical surface 56 having a radius R1 and a peripheral edge having a radius R2, along with a peripheral vertical surface 58.
  • the outer annular forming element 52 has an inclined flat surface 60, a convex annular surface 62 having a radius R4, and a concave annular surface 64 having a radius R5.
  • the punch 54 has a lower nose 70 configured to produce the U-shaped portion 22 and an outer surface 72 conforming to the surfaces 62 and 64.
  • Containers constructed in accordance with the present invention exhibited more than adequate resistance to buckling, internal pressure and column strength. It has also been noted that the stock material thickness could be reduced to 0.3175 cm ((0.0125 inch), and possibly as low as 0.3048 cm (0.0120 inch), which significantly reduces the raw material cost for these containers.
  • the tapered upper end 16 of the container is a constantly-reducing taper from the cylindrical sidewall to the upper flange 18.
  • This constantly-reducing tapered smooth neck is produced in a spin-necking operation and tests have shown that this results in significantly increased crush strength for the container. In fact, these tests show that the upper edge of the neck will actually curl rather than having the tapered portion wrinkle.
  • one of the problems encountered in forming container shells from reduced thicknesses of aluminum stock material and reforming the end wall of the configuration described above is that the metal has a tendency to wrinkle, particularly in the reformed juncture area, which renders the finished container unacceptable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Stackable Containers (AREA)

Claims (5)

  1. Un récipient pour bière et boissons (10) étiré et en fer comprenant une paroi latérale (12) généralement cylindrique ayant
    un col (16) au niveau d'une extrémité, avec une extrémité (40) reliée par un joint double (42) à une extrémité ouverte dudit col (16),
    ledit joint double (42) ayant une paroi interne généralement plate s'étendant en position généralement parallèle par rapport à l'axe dudit récipient (10), avec une partie supérieure arquée exposée au dessus de ladite paroi interne plate et une partie de fond intégrale,
    ladite paroi de fond comprenant une première partie inférieure convexe annulaire arquée (38) située à l'extrémité de ladite paroi latérale cylindrique (12), une seconde partie arquée concave annulaire (36) se raccordant à une extrémité inférieure de ladite première partie inférieure convexe annulaire arquée (38) et une troisième partie annulaire généralement en forme de U (22),
    ladite partie exposée arquée du joint double (42) étant adaptée, lorsqu'une partie inférieure d'un récipient (10) est empilée sur une partie supérieure d'un autre récipient de forme identique (10), pour se loger dans ladite seconde partie arquée (36),
    ladite troisième partie annulaire en forme de U (22) étant munie d'une paroi interne plate substantiellement verticale (28) interconnectée par un segment arqué inférieur (32) qui définit un support annulaire inférieur de diamètre réduit (34) pour ledit récipient (10); et
    un panneau central ayant la forme d'un dôme se projetant vers l'intérieur (20) faisant partie intégrante de ladite paroi plate substantiellement verticale (28),
    caractérisé en ce que
    ladite troisième partie annulaire en forme de U (22) est munie d'une paroi externe annulaire plate (30) conique et se dirigeant vers l'intérieur,
    ladite paroi de fond a un profil lui permettant de venir se loger par coincement sur une extrémité réduite joints sur ladite extrémité ouverte dudit autre récipient,
    ladite seconde partie arquée (36) de la paroi de fond est adaptée pour s'engager sur ladite parti arquée exposée du joint double (42) et pour définir un contact étendu continu autour de toute sa périphérie lorsqu'une partie inférieure d'un récipient (10) est empilée sur une partie supérieure dudit autre récipient (109).
  2. Un récipient pour bière et boissons (10) étiré et en fer selon la revendication 1, caractérisé en ce que ladite première partie arquée (38) a un rayon qui est du double du rayon de ladite second partie arquée (36).
  3. Un récipient pour bière et boissons (10) étiré et en fer selon la revendication 1 ou 2, caractérisé par un col conique se dirigeant vers l'intérieur (16) qui est généralement lisse et continu entre ladite paroi latérale (12) et ledit joint double (42).
  4. Un récipient pour bière et boisson (10) étiré et en fer selon la revendication 1, 2 ou 3, caractérisé en ce que le rayon de ladite première partie arquée (38) est d'environ un dixième du diamètre dudit support inférieur (34) et en ce que le rayon de ladite seconde partie arquée (36) est d'environ la moitié du rayon de ladite première partie arquée (38).
  5. Un récipient pour bière et boissons (10) étiré et en fer selon la revendication 1 ou 2, dans lequel le diamètre dudit support annulaire inférieur est de 5,08 cm (2,00 pouces) et est de 80 % du diamètre de ladite paroi latérale (12).
EP19890109413 1984-10-03 1985-09-30 Récipient Revoked EP0337500B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/657,224 US4620434A (en) 1982-09-29 1984-10-03 Domer assembly for container-forming apparatus
US657224 1984-10-03
US736428 1985-05-20
US06/736,428 US4685582A (en) 1985-05-20 1985-05-20 Container profile with stacking feature

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP19850905153 Division EP0196327A4 (fr) 1984-10-03 1985-09-30 Ensemble en dome pour la formation d'une paroi extreme d'un conteneur.
EP85905153.4 Division 1985-09-30

Publications (3)

Publication Number Publication Date
EP0337500A2 EP0337500A2 (fr) 1989-10-18
EP0337500A3 EP0337500A3 (en) 1989-11-23
EP0337500B1 true EP0337500B1 (fr) 1993-06-09

Family

ID=27097364

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19890109413 Revoked EP0337500B1 (fr) 1984-10-03 1985-09-30 Récipient
EP19850905153 Withdrawn EP0196327A4 (fr) 1984-10-03 1985-09-30 Ensemble en dome pour la formation d'une paroi extreme d'un conteneur.

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19850905153 Withdrawn EP0196327A4 (fr) 1984-10-03 1985-09-30 Ensemble en dome pour la formation d'une paroi extreme d'un conteneur.

Country Status (3)

Country Link
EP (2) EP0337500B1 (fr)
DE (1) DE3587397T2 (fr)
WO (1) WO1986002026A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723433A (en) * 1986-01-28 1988-02-09 Adolph Coors Company Method and apparatus for doming can bottoms
DE3930937A1 (de) 1989-09-15 1991-03-28 Schmalbach Lubeca Zweiteilige getraenkedose aus metall
MX9101632A (es) * 1990-10-22 1992-06-05 Ball Corp Metodo y aparato para reforzar la base o fondo de un recipiente
SE508716C2 (sv) 1996-01-15 1998-11-02 Tetra Laval Holdings & Finance Botten för en förpackning med inre övertryck
GB9609407D0 (en) * 1996-05-04 1996-07-10 Metal Box Plc Base forming station
DE19708826C3 (de) * 1996-12-01 2003-10-30 Hans Werner Franzer Behälter, insbesondere Dose, aus dünnwandigem Blech
EP1477056B1 (fr) * 2003-07-10 2005-10-26 Ball Packaging Europe GmbH Récipient destiné à boire pour animaux adapté pour recevoir et ouvrir une canette de boisson fermée, cette même canette fermée et remplie de boisson et une unité étant de complément du récipient pour boire
ES2566345T3 (es) * 2008-06-26 2016-04-12 Alcoa Inc. Recipiente de doble pared y procedimiento de fabricación
US10160022B2 (en) 2012-09-21 2018-12-25 Stolle Machinery Company, Llc Bodymaker and double action domer assembly with staged piston

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924673A (en) * 1968-03-18 1975-12-09 Gamma Engineering Ltd Apparatus for producing continuous metal castings
US3693828A (en) * 1970-07-22 1972-09-26 Crown Cork & Seal Co Seamless steel containers
US3904069A (en) * 1972-01-31 1975-09-09 American Can Co Container
US3771345A (en) * 1972-06-08 1973-11-13 Standun End forming station for metallic can body formers and the like
US3905507A (en) * 1974-04-05 1975-09-16 Nat Can Corp Profiled bottom wall for containers
US4102419A (en) * 1976-05-10 1978-07-25 Klima Frank J Rolling cutter drill bit with annular seal rings
JPS5325186A (en) * 1976-08-20 1978-03-08 Daiwa Can Co Ltd Metallic can for drink containing carbon dioxide or the like
US4294373A (en) * 1978-11-20 1981-10-13 Ball Corporation Lightweight metal container
DE3030820A1 (de) * 1979-08-17 1981-03-26 Coles Cranes Ltd., Sunderland, Tyne and Wear Mobilkran mit einem teleskopausleger
US4289014A (en) * 1979-10-11 1981-09-15 National Can Corporation Double action domer assembly
US4515284A (en) * 1980-08-21 1985-05-07 Reynolds Metals Company Can body bottom configuration
US4372143A (en) * 1980-10-10 1983-02-08 Jos. Schlitz Brewing Company Apparatus for forming a domed bottom in a can body
GB2114031B (en) * 1982-02-02 1985-10-09 Metal Box Plc Method of forming containers

Also Published As

Publication number Publication date
DE3587397T2 (de) 1994-05-05
EP0196327A4 (fr) 1988-06-27
WO1986002026A1 (fr) 1986-04-10
EP0337500A3 (en) 1989-11-23
EP0337500A2 (fr) 1989-10-18
EP0196327A1 (fr) 1986-10-08
DE3587397D1 (de) 1993-07-15

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