EP0020099B1 - Method of forming a can - Google Patents

Method of forming a can Download PDF

Info

Publication number
EP0020099B1
EP0020099B1 EP80301705A EP80301705A EP0020099B1 EP 0020099 B1 EP0020099 B1 EP 0020099B1 EP 80301705 A EP80301705 A EP 80301705A EP 80301705 A EP80301705 A EP 80301705A EP 0020099 B1 EP0020099 B1 EP 0020099B1
Authority
EP
European Patent Office
Prior art keywords
end portion
cup
shaped member
members
shaped
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
EP80301705A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0020099A1 (en
Inventor
Paul M. Erlandson
Donald J. Roth
Ihab M. Hekal
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
Application filed by Continental Group Inc filed Critical Continental Group Inc
Priority to AT80301705T priority Critical patent/ATE9215T1/de
Publication of EP0020099A1 publication Critical patent/EP0020099A1/en
Application granted granted Critical
Publication of EP0020099B1 publication Critical patent/EP0020099B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • 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
    • B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape
    • B65D7/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape of curved cross-section, e.g. cans of circular or elliptical cross-section
    • 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
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles

Definitions

  • an adhesive is used to join cup-shaped members to form a can.
  • an adhesive is used to join a tubular part of a bicycle frame to a connecting part between two or more tubes. Prior to assembly, the connecting part is heated causing it to expand to facilitate the insertion of the tube.
  • a method of forming a can by joining together two cup-shaped members, one of said cup-shaped members having an end portion shaped for telescoping in an end portion of the other cup-shaped member including the steps of telescoping the end portion of the one cup-shaped member into the end portion of the other cup-shaped member and forming a bond therebetween characterized in that the method further includes the step prior to telescoping of coating the end portion of said one cup-shaped member with an adhesive, and heating the end portion of the other cup-shaped member so that it expands to allow the end portion of the one cup-shaped member to be telescoped into it and that the stop of forming the bond includes heating the end portion of the one cup-shaped member to cause it to expand into contact with the end portion of the other cup-shaped member to effect the bond in the expanded state.
  • the heating may be accomplished using an induction heating coil.
  • the cup-shaped members may be of the same general diameter with the end portion of the one member reduced in diameter to enable it to shape together with the other member as described above.
  • the end portion of said one cup-shaped member may be radially offset by at a distance of at least as much as the wall thickness of the other cup-shaped member.
  • the one cup-shaped member may form the bottom part of the assembled can and the other cup-shaped member may form the top part of the can.
  • the entire assembly operation may be accomplished automatically.
  • a suitable label may be applied thereto both for the purpose of identifying the product and masking the joint between the container members.
  • the label is preferably a shrink label which has the end portions thereof extended beyond the container body and engaging both the top and bottom end walls.
  • FIG. 1-3 a container which is formed in accordance with this invention, the container being generally identified by the numeral 10.
  • the container 10 is a can and will be so identified hereinafter.
  • the principles of this invention will apply to and it is proposed to form cans which may vary in size from those of small capacity such as seven ounces and most particularly twelve and sixteen ounces, to relatively large cans having a capacity as great as five or 6 liters. Accordingly, the use of the word "can" to describe the invention is not intended to be limiting.
  • the can 10 is of a two-piece construction and includes a bottom member 12 and a top member 14.
  • the members 12 and 14 are joined together as at 16 intermediate the height of the can 10. After the members 12 and 14 are joined, it is preferred that there be disposed around the entire length of the can body a label 18 which is preferably in the form of a shrink wrap, the label 18 will be described in more detail hereinafter.
  • the container member 12 as is best shown in Figure 4, have a cylindrical body 20 and an intergral bottom wall.
  • the bottom wall is preferably of a bulged configuration including an overall bulging 24 having projecting therefrom in circumferentially spaced relation a plurality of outwardly directed protrusions 26.
  • the bottom wall construction is one which will withstand the high internal pressures of carbonated beverages and even through a certain amount of outward bowing will be effected from the pressure of the product therein, the projections 26 will be so related to the bulge 24 as always to project downwardly therebeyond to form a stable platform for the can.
  • the container member 14 is also provided with a cylindrical body portion 28 and a top wall 30.
  • the top wall 30 may be bowed or may be generally frustoconical, as shown.
  • the top wall 30 is provided with a central filling opening 32 which, after filling, will be closed by means of a suitable plug (not shown) preferably in the form of a rivet-like member.
  • the can 10 may be opened for dispensing the product in various manners depending upon the size of the can and the application thereof. If desired, the plug may be made removable and replaceable so that the filling opening 32 may also be utilized as a dispensing opening. On the other hand, if the can is of a small size, it may be provided with a conventional easy opening feature in the end wall 30 adjacent the filling opening 32.
  • the diameters of the bodies 20 and 28 are preferably the same. In order to telescope the end portions of the bodies 20 and 28, it is necessary that the diameter of the end portion of one of the bodies be changed.
  • the container member 12 has an end portion 34 which is radially inwardly offset to define a necked-in end portion joined to the remainder of the body 20 by a shoulder 36.
  • the offsetting of the metal of the end portion 34 is between 1.1 and 2 times the thickness of the metal of the bodies 20, 28.
  • the container members 12 and 14 may be formed by way of automatic forming machinery in a conventional manner, and no description of the forming operations is required here.
  • the container members 12 and 14 will be supplied to an assembling machine in two rows.
  • a suitable coating of adhesive 38 is applied to the exterior of the end portion 34 either in the assembling machine or prior thereto in a conventional manner.
  • the adhesive 38 may vary in composition, but must be one which will bond either directly to the metal of the container members or to any coatings applied thereto.
  • the adhesive is a powder type adhesive which may be applied electrostatically to the end portion 34 and may be fused by heating.
  • the container members 14 first move through an induction heating coil 40 while the container members 12 remain spaced therefrom but aligned therewith.
  • the induction heating coil 40 may be in the form of two bars which are spaced apart and the container members 14 may roll therebetween to assure uniform circumferential heating of the free end portion of the body 28 in the manner shown in Figure 4.
  • the label 18 may then be applied in any conventional manner with the label, as described above, when it is a shrink label, extending beyond the body of the can and overlapping the bottom wall 22 and the top wall 30 so as securely to anchor the label on the can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Materials For Medical Uses (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP80301705A 1979-05-30 1980-05-22 Method of forming a can Expired EP0020099B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80301705T ATE9215T1 (de) 1979-05-30 1980-05-22 Verfahren zur herstellung einer dose.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4395079A 1979-05-30 1979-05-30
US43950 1979-05-30

Publications (2)

Publication Number Publication Date
EP0020099A1 EP0020099A1 (en) 1980-12-10
EP0020099B1 true EP0020099B1 (en) 1984-09-05

Family

ID=21929754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80301705A Expired EP0020099B1 (en) 1979-05-30 1980-05-22 Method of forming a can

Country Status (8)

Country Link
EP (1) EP0020099B1 (enrdf_load_stackoverflow)
JP (1) JPS5632228A (enrdf_load_stackoverflow)
KR (1) KR830002628A (enrdf_load_stackoverflow)
AT (1) ATE9215T1 (enrdf_load_stackoverflow)
AU (1) AU537477B2 (enrdf_load_stackoverflow)
CA (1) CA1130732A (enrdf_load_stackoverflow)
DK (1) DK232380A (enrdf_load_stackoverflow)
ES (1) ES491961A0 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH652840A5 (de) * 1981-08-11 1985-11-29 Grapha Holding Ag Vorrichtung zum zaehlen der druckbogen eines schuppenstromes.
JPS5857480A (ja) * 1981-09-30 1983-04-05 Toyo Seikan Kaisha Ltd 金属性ビンの製造方法
AU8965282A (en) * 1981-10-26 1983-05-05 Toyo Seikan Kaisha Ltd. Lap bonding metal vessel members
JPS5871974A (ja) * 1981-10-26 1983-04-28 Toyo Seikan Kaisha Ltd 金属容器の製造方法
KR890002489B1 (ko) * 1982-03-08 1989-07-10 도오요오 세이깐 가부시기가이샤 금속관(金屬罐)의 제조방법과 장치
AU2133883A (en) * 1982-11-16 1984-05-24 Toyo Seikan Kaisha Ltd. Metallic container with circumferential lap bond
AU2446384A (en) * 1983-02-10 1984-08-16 Continental Can Company Inc. Bonding container end unit to body
EP0122336A1 (en) * 1983-04-15 1984-10-24 Cover Faima Industrie S.R.L. A method of manufacture of metal sheet boxes in two distinct bodies and boxes thus obtained
AT16489U1 (de) * 2018-06-27 2019-10-15 Worthington Cylinders Gmbh Stahlflasche und Verfahren zu ihrer Herstellung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124874A (en) * 1964-03-17 Method of fastening pipe together
DE917288C (de) * 1950-09-29 1954-08-30 Kurt Froelich Dr Ing Verfahren zum Herstellen von Klebeverbindungen
GB1075790A (en) * 1964-06-17 1967-07-12 Carlo Bombini Improvements in or relating to the manufacture of pressure cylinders
GB1432333A (en) * 1972-03-30 1976-04-14 Lotus Car Moulding cooling fan operating circuits for road vehicles
JPS5552152Y2 (enrdf_load_stackoverflow) * 1976-04-30 1980-12-03

Also Published As

Publication number Publication date
JPS6211935B2 (enrdf_load_stackoverflow) 1987-03-16
KR830002628A (ko) 1983-05-30
JPS5632228A (en) 1981-04-01
ES8105593A1 (es) 1981-06-16
CA1130732A (en) 1982-08-31
ES491961A0 (es) 1981-06-16
ATE9215T1 (de) 1984-09-15
AU5884980A (en) 1980-12-04
AU537477B2 (en) 1984-06-28
DK232380A (da) 1980-12-01
EP0020099A1 (en) 1980-12-10

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