EP0065842A1 - Befestigung der Deckel an rotationssymmetrischen Behältern - Google Patents

Befestigung der Deckel an rotationssymmetrischen Behältern Download PDF

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Publication number
EP0065842A1
EP0065842A1 EP82302382A EP82302382A EP0065842A1 EP 0065842 A1 EP0065842 A1 EP 0065842A1 EP 82302382 A EP82302382 A EP 82302382A EP 82302382 A EP82302382 A EP 82302382A EP 0065842 A1 EP0065842 A1 EP 0065842A1
Authority
EP
European Patent Office
Prior art keywords
flange
cover
frusto
conical
folded back
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.)
Granted
Application number
EP82302382A
Other languages
English (en)
French (fr)
Other versions
EP0065842B1 (de
Inventor
Anthony Robert Collingwood
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.)
BUEDENBENDER, BERND
Original Assignee
Buedenbender Bernd
Wellman Furnaces Ltd
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 Buedenbender Bernd, Wellman Furnaces Ltd filed Critical Buedenbender Bernd
Priority to AT82302382T priority Critical patent/ATE14196T1/de
Publication of EP0065842A1 publication Critical patent/EP0065842A1/de
Application granted granted Critical
Publication of EP0065842B1 publication Critical patent/EP0065842B1/de
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
    • 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
    • B65D7/36—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 rolling, or by rolling and pressing
    • 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
    • B21D51/30—Folding the circumferential seam
    • B21D51/32—Folding the circumferential seam by rolling

Definitions

  • This invention relates to a method for securing an end cover to a rotationally symmetrical body (e.g. a cylindrical body) by seam rolling together flanges on said cover and body.
  • a rotationally symmetrical body e.g. a cylindrical body
  • One form of seamed joint which is coming into widespread use is the so-called triple seam which involves seam rolling the flanges together so that the resulting joint between the cover and the body comprises seven thicknesses of material.
  • One method of forming a triple seam joint which has been used in the past is disclosed in British Patent No. 1153872.
  • This form of a seam joint suffers from the drawback that the seaming operation has to be carried out in two stages using separate seaming rollers having grooves of differing cross section.
  • the first stage in which the cover flange is folded over the body flange involves bending the marginal edge of the cover flange through a small radius of curvature and this inevitably results in relatively rapid wear of that seaming roller.
  • the seam jointing equipment forms a part only of a continuous production line for the manufacture of for example drums for storage of chemicals which means that frequent replacement of the small radius seaming roller interrupts continuity of production.
  • the object of the present invention is to provide an improved method and apparatus for use in the production of triple seam joints wherein seam rolling can be performed in a single step without the risk of the body flange failing to register with a preformed folded back edge on the cover flange.
  • a method of securing a cover to an open end of a rotationally symmetric tubular body comprising: (a) providing the cover with a peripheral flange whose outer peripheral margin is folded back on itself; (b) providing the body with a peripheral frusto-conical flange whose larger end is smaller than the diameter of the inwardly directed edge of said folded back margin; (c) locating said cover with its flange seated on the larger diameter end of said frusto-conical flange; (d) applying pressure to displace the cover and body relative to one another so as to deflect the frusto-conical flange abouts its smaller diameter end causing its marginal edge to enter the folded back margin of the cover flange and bring the body flange into generally parallel relation with the cover flange; and (e) rolling the flanges together to form a triple seam.
  • the body flange is brought into registry with the folded back margin of the cover flange in a manner which practically precludes any possibility of misregistry thereby avoiding rejection of the joint through this cause. Also, the body flange is brought into substantially parallel relation with the cover flange so that at the commencement of seam rolling both flanges may be in contact over substantially their entire widths.
  • the smaller diameter end of the frusto-conical flange will be constituted by a sharp or small radius junction whose radius of curvature may be less than for example the radius of the junction between the cover and its flange so that deflection of the frusto-conical flange will take place at a well defined position thereby ensuring that the marginal edge of this flange enters into the folded back margin of the cover flange to the desired extent even when the cover flange is not truly perpendicular to the body axis.
  • the outer peripheral margin of the frusto-conical flange is preformed (i.e. before assembly with the cover) with a slight curl so as to facilitate sliding thereof along the cover flange during deflection of the frusto-conical flange.
  • the frusto-conical flange is joined directly to the wall of the body (and in this case can be formed by roll flanging or by press flanging) but in a modification it may be joined to the body wall through the intermediary of one or more frusto-conical portions of steeper base angle.
  • means will be provided for supporting the cover flange against deflection during deflection of the frusto-conical flange.
  • Such means may comprise the combination of the seaming chuck and seaming roller, one or the other or both of which may include or be provided with a supporting portion extending over at least part of the cover flange.
  • the axial pressure for effecting deflection of the frusto-conical flange may be applied through the agency of the seaming chuck so that once the deflection step has been executed the seam rolling step may be initiated immediately.
  • the deflection step may be executed with the aid of a special tool for which the seaming chuck is substituted after the deflection step has been effected.
  • the cover 10 is provided with a radial flange 12 which is preformed with a folded back margin 14 so as to provide a radially inwardly directed annular groove 16.
  • the cylindrical body 18 is formed with a frusto-conical flange 20 which forms an obtuse angle with the cylindrical wall of the body 18 and terminates in a slightly curled edge 22 whose diameter is less than the inner diameter of the folded back margin 14 by an amount A so that the cover 10 may initially be assembled to the body in the manner shown in Figure 1 with the cover flange 12 seating on the larger diameter end of the flange 20.
  • the cover Prior to seam rolling the two flanges 12 and 20 together, the cover is displaced downwardly into the body 18 so as to cause the flange 20 to deflect about its junction 24 with the body wall. To ensure that the deflection takes place at a well defined position, the radius of the junction 24 is relatively sharp and typically it will be less than that of the junction between the cover and its flange 12.
  • the width of the flange 20 and its angle of inclination are such that when the flange 20 is deflected into substantially parallel relation with the flange 12 as shown in Figure 2, the marginal edge of flange 20 enters the groove 16 to such an an extent that the outer diameter of the flange 20 exceeds the inner diameter of the folded back margin 14 by an amount B thereby trapping the cover on the body and ensuring that the flange 20 is properly registered with the groove 16 in preparation for triple seam rolling.
  • Figures 3 and 4 show a similar cover and body assembly except that in this case the frusto-conical flange 20 is joined to the main wall of the body 18 through the intermediary of a steeper frusto-conical portion 30 whose width is somewhat less than that of the flange 20.
  • the arrangement is such that deflection of the flange 20 takes place predominantly about the junction between flange 20 and the portion 30.
  • the necessary axial displacement may be applied through the agency of the seaming chuck in which event the chuck 50 and/or the seaming roller 44 may be suitably adapted to enable the necessary support to be provided for flange 12 during deflection of the flange 20.
  • the seaming chuck 50 may be provided with an independently displaceable radially outwardly projecting portion 52 for providing the necessary support for the flange 12.
  • the portion 52 may be movable downwardly with the chuck 50 during the deflection/ displacement step but may be arranged to be withdrawn upwardly to the position shown in broken outline so as afford clearance for movement of the seaming roller 44 radially inwardly to effect the triple seaming operation.
  • the seaming chuck and/or the seaming roller may be provided with a radial projection or projections which at least partially overly the flange 12, the arrangement being such that the necessary radially inwardmovement of the seaming roller can take place to effect the seaming operation.
  • Figures 7 and 8 show respectively an intermediate stage during seam rolling and the finally formed triple seam which, it will be noted, comprises seven thicknesses of material.
  • sealing compound may be introduced at an appropriate stage or stages during the process preferably in such a way that sealing compound is present in the central part of the joint and also between at least some of the layers of the seam as indicated by the reference numeral 60 in Figure 8 so as to afford greater security against leakage and also to strengthen the joint against rupture through impact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Insulators (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP82302382A 1981-05-14 1982-05-11 Befestigung der Deckel an rotationssymmetrischen Behältern Expired EP0065842B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82302382T ATE14196T1 (de) 1981-05-14 1982-05-11 Befestigung der deckel an rotationssymmetrischen behaeltern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8114759A GB2098523B (en) 1981-05-14 1981-05-14 Securing end covers to rotationally symmetric bodies
GB8114759 1981-05-14

Publications (2)

Publication Number Publication Date
EP0065842A1 true EP0065842A1 (de) 1982-12-01
EP0065842B1 EP0065842B1 (de) 1985-07-10

Family

ID=10521796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82302382A Expired EP0065842B1 (de) 1981-05-14 1982-05-11 Befestigung der Deckel an rotationssymmetrischen Behältern

Country Status (4)

Country Link
EP (1) EP0065842B1 (de)
AT (1) ATE14196T1 (de)
DE (1) DE3264655D1 (de)
GB (1) GB2098523B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552689A1 (fr) * 1983-09-30 1985-04-05 Gallay Sa Procede d'obtention d'un sertissage triple
US4626158A (en) * 1983-07-05 1986-12-02 Gallay S.A. Container seam and a process for forming a container seam
EP0317008A1 (de) * 1987-11-20 1989-05-24 Koninklijke Emballage Industrie Van Leer B.V. Fass mit abgedichteter Falznaht
AU621325B2 (en) * 1987-11-20 1992-03-12 Koninklijke Emballage Industrie Van Leer B.V. Drum with sealed folded seam
WO1996015036A1 (de) * 1994-11-14 1996-05-23 Schmalbach-Lubeca Ag Gestufter falz für eine blechdose
WO1996031302A1 (en) * 1995-04-04 1996-10-10 Carnaudmetalbox Plc Containers
CN101175670B (zh) * 2005-05-17 2010-05-19 东洋制罐株式会社 方形罐及其双重卷边方法以及双重卷边装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121332B (en) * 1982-05-27 1985-11-20 Plastic Drum Company Limited Sealing of drums
US5320468A (en) * 1990-07-13 1994-06-14 Kramer Antonio H Tin can manufacturing process
AU8480091A (en) * 1991-09-25 1993-04-01 Antonio Henrique Kramer Tin can manufacturing process

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE369184C (de) * 1916-10-05 1923-02-15 Franklin Fuber Stetson Maschine zur Anbringung von Boeden an Blechbuechsen u. dgl.
US2460296A (en) * 1946-06-27 1949-02-01 American Can Co Mechanism for forming vented can end seams
GB765753A (en) * 1954-07-15 1957-01-09 Metal Box Co Ltd Improvements in or relating to the seaming of ends to can bodies
US3025814A (en) * 1959-08-12 1962-03-20 American Can Co Can seaming mechanism
GB1153872A (en) * 1965-06-18 1969-05-29 Futs Metalliques Gallay S A Improvements in and relating to the Manufacture of Metallic Containers such as Casks and the like
US3730118A (en) * 1970-11-16 1973-05-01 Carnaud & Forges Linear clinching for round cans
GB1325706A (en) * 1969-08-01 1973-08-08 Leer Koninklijke Emballage Method of connecting a sheet metal end closure to a sheet metal container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE369184C (de) * 1916-10-05 1923-02-15 Franklin Fuber Stetson Maschine zur Anbringung von Boeden an Blechbuechsen u. dgl.
US2460296A (en) * 1946-06-27 1949-02-01 American Can Co Mechanism for forming vented can end seams
GB765753A (en) * 1954-07-15 1957-01-09 Metal Box Co Ltd Improvements in or relating to the seaming of ends to can bodies
US3025814A (en) * 1959-08-12 1962-03-20 American Can Co Can seaming mechanism
GB1153872A (en) * 1965-06-18 1969-05-29 Futs Metalliques Gallay S A Improvements in and relating to the Manufacture of Metallic Containers such as Casks and the like
GB1325706A (en) * 1969-08-01 1973-08-08 Leer Koninklijke Emballage Method of connecting a sheet metal end closure to a sheet metal container
US3730118A (en) * 1970-11-16 1973-05-01 Carnaud & Forges Linear clinching for round cans

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626158A (en) * 1983-07-05 1986-12-02 Gallay S.A. Container seam and a process for forming a container seam
FR2552689A1 (fr) * 1983-09-30 1985-04-05 Gallay Sa Procede d'obtention d'un sertissage triple
EP0136953A2 (de) * 1983-09-30 1985-04-10 Gallay S.A. Verfahren zum Erzeugen einer dreifachen Falzverbindung
EP0136953A3 (de) * 1983-09-30 1985-05-08 Gallay S.A. Verfahren zum Erzeugen einer dreifachen Falzverbindung
EP0317008A1 (de) * 1987-11-20 1989-05-24 Koninklijke Emballage Industrie Van Leer B.V. Fass mit abgedichteter Falznaht
WO1989004799A1 (en) * 1987-11-20 1989-06-01 Koninklijke Emballage Industrie Van Leer B.V. Drum with sealed folded seam
AU621325B2 (en) * 1987-11-20 1992-03-12 Koninklijke Emballage Industrie Van Leer B.V. Drum with sealed folded seam
WO1996015036A1 (de) * 1994-11-14 1996-05-23 Schmalbach-Lubeca Ag Gestufter falz für eine blechdose
US5947673A (en) * 1994-11-14 1999-09-07 Schmalbach-Lubeca Ag Stepped seam for a can
WO1996031302A1 (en) * 1995-04-04 1996-10-10 Carnaudmetalbox Plc Containers
US5957647A (en) * 1995-04-04 1999-09-28 Carnaudmetalbox (Holdings) Usa, Inc. Containers
CN101175670B (zh) * 2005-05-17 2010-05-19 东洋制罐株式会社 方形罐及其双重卷边方法以及双重卷边装置

Also Published As

Publication number Publication date
DE3264655D1 (en) 1985-08-14
ATE14196T1 (de) 1985-07-15
EP0065842B1 (de) 1985-07-10
GB2098523A (en) 1982-11-24
GB2098523B (en) 1984-08-22

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