EP0103074A3 - Increased strenght for metal closures through reversing curved segments - Google Patents

Increased strenght for metal closures through reversing curved segments Download PDF

Info

Publication number
EP0103074A3
EP0103074A3 EP83105729A EP83105729A EP0103074A3 EP 0103074 A3 EP0103074 A3 EP 0103074A3 EP 83105729 A EP83105729 A EP 83105729A EP 83105729 A EP83105729 A EP 83105729A EP 0103074 A3 EP0103074 A3 EP 0103074A3
Authority
EP
European Patent Office
Prior art keywords
wall
closure
present
center panel
reversing
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.)
Withdrawn
Application number
EP83105729A
Other languages
German (de)
French (fr)
Other versions
EP0103074A2 (en
Inventor
Tuan Anh Nguyen
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.)
Ball Corp
Original Assignee
Ball Corp
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 Ball Corp filed Critical Ball Corp
Publication of EP0103074A2 publication Critical patent/EP0103074A2/en
Publication of EP0103074A3 publication Critical patent/EP0103074A3/en
Withdrawn legal-status Critical Current

Links

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
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/06—Integral, or permanently secured, end or side closures
    • B65D17/08—Closures secured by folding or rolling and pressing

Abstract

The present invention relates to improvements in the strength of ends used on metal beverage containers. Such ends generally comprise a center panel of a substantially planar character, a surrounding annular grooved portion or countersink made up of an inner panel wall, a chuckwall and a first upwardly bowed arcuate segment integrally joining the inner wall and the chuckwall, and a second downwardly bowed arcuate segment integrally joining the inner wall and the center panel.
In accordance with the present invention the second arcuate segment is reversed by herein disclosed tooling to provide the closure with three reversing arcuate segments between the inner wall and the center panel and a reduced center panel diameter. The closure so formed exhibits an increase in buckle resistance between 8 and 10 percent which allows a thinner gauge material to be used in forming the closures. Other than the three reversing arcuate seg­ ments the closure formed in accordance with the present invention conforms very closely to standard dimensional characteristics allowing its use on existing customers' fill-­ and-seal equipment without modification. An additional ad­ vantage of the present invention is that it can be easily instituted on many of the existing closure production lines with minor modifications and extremely low additional press tonnage requirements.
EP83105729A 1982-09-09 1983-06-10 Increased strenght for metal closures through reversing curved segments Withdrawn EP0103074A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41619882A 1982-09-09 1982-09-09
US416198 1982-09-09

Publications (2)

Publication Number Publication Date
EP0103074A2 EP0103074A2 (en) 1984-03-21
EP0103074A3 true EP0103074A3 (en) 1984-05-23

Family

ID=23648984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105729A Withdrawn EP0103074A3 (en) 1982-09-09 1983-06-10 Increased strenght for metal closures through reversing curved segments

Country Status (3)

Country Link
EP (1) EP0103074A3 (en)
JP (1) JPS5962444A (en)
AU (1) AU1618683A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ210588A (en) * 1984-01-16 1988-01-08 Dayton Reliable Tool & Mfg Co Shell used in manufacture of can ends: non-circular blank having rounded corners is cut from sheet metal
JPH0211033U (en) * 1988-07-04 1990-01-24
US5149238A (en) * 1991-01-30 1992-09-22 The Stolle Corporation Pressure resistant sheet metal end closure
US5590807A (en) * 1992-10-02 1997-01-07 American National Can Company Reformed container end
US5356256A (en) * 1992-10-02 1994-10-18 Turner Timothy L Reformed container end
US6024239A (en) * 1997-07-03 2000-02-15 American National Can Company End closure with improved openability
US8490825B2 (en) 1999-12-08 2013-07-23 Metal Container Corporation Can lid closure and method of joining a can lid closure to a can body
US6748789B2 (en) 2001-10-19 2004-06-15 Rexam Beverage Can Company Reformed can end for a container and method for producing same
JP5042941B2 (en) * 2008-08-11 2012-10-03 ユニバーサル製缶株式会社 Can lid
US9566634B2 (en) 2010-06-07 2017-02-14 Rexam Beverage Can Company Can end produced from downgauged blank
JP5186026B2 (en) * 2011-06-24 2013-04-17 ユニバーサル製缶株式会社 Manufacturing method of can lid
US9821928B2 (en) 2012-05-14 2017-11-21 Rexam Beverage Can Company Can end
WO2014062873A1 (en) * 2012-10-18 2014-04-24 Stolle Machinery Company, Llc End closure with coined panel radius and reform step
CN109158504A (en) * 2018-11-08 2019-01-08 苏州斯莱克精密设备股份有限公司 Stamping device and multichannel cover stamping system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441170A (en) * 1967-03-03 1969-04-29 Continental Can Co Coined bead for improved fill characteristics
US3774801A (en) * 1971-02-22 1973-11-27 American Can Co Reinforced metal can end
DE2532194A1 (en) * 1974-07-23 1976-02-05 Continental Can Co METHOD AND DEVICE FOR DEFORMING A Tear-Off Lid Made Of Metal
US4093102A (en) * 1974-08-26 1978-06-06 National Can Corporation End panel for containers
DE2820514A1 (en) * 1977-05-17 1978-11-23 Ferembal Sa DEEP-DRAWING BOTTOM FOR METALLIC PACKAGING
US4217843A (en) * 1977-07-29 1980-08-19 National Can Corporation Method and apparatus for forming ends
GB2051646A (en) * 1979-06-26 1981-01-21 Continental Group Container produced by triple drawn method using tin coated steel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441170A (en) * 1967-03-03 1969-04-29 Continental Can Co Coined bead for improved fill characteristics
US3774801A (en) * 1971-02-22 1973-11-27 American Can Co Reinforced metal can end
DE2532194A1 (en) * 1974-07-23 1976-02-05 Continental Can Co METHOD AND DEVICE FOR DEFORMING A Tear-Off Lid Made Of Metal
US4093102A (en) * 1974-08-26 1978-06-06 National Can Corporation End panel for containers
DE2820514A1 (en) * 1977-05-17 1978-11-23 Ferembal Sa DEEP-DRAWING BOTTOM FOR METALLIC PACKAGING
US4217843A (en) * 1977-07-29 1980-08-19 National Can Corporation Method and apparatus for forming ends
GB2051646A (en) * 1979-06-26 1981-01-21 Continental Group Container produced by triple drawn method using tin coated steel

Also Published As

Publication number Publication date
EP0103074A2 (en) 1984-03-21
JPS5962444A (en) 1984-04-09
AU1618683A (en) 1984-03-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19840925

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Inventor name: NGUYEN, TUAN ANH