WO1989002854A1 - Couvercles d'extremite avec bords de protection et commande de l'ouverture, de maniement aise et resistant a l'endommagement - Google Patents

Couvercles d'extremite avec bords de protection et commande de l'ouverture, de maniement aise et resistant a l'endommagement Download PDF

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Publication number
WO1989002854A1
WO1989002854A1 PCT/US1988/002512 US8802512W WO8902854A1 WO 1989002854 A1 WO1989002854 A1 WO 1989002854A1 US 8802512 W US8802512 W US 8802512W WO 8902854 A1 WO8902854 A1 WO 8902854A1
Authority
WO
WIPO (PCT)
Prior art keywords
scoreline
sheet metal
container
peripheral
opener
Prior art date
Application number
PCT/US1988/002512
Other languages
English (en)
Inventor
William T. Saunders
Original Assignee
Weirton Steel Corporation
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 PCT/US1987/000102 external-priority patent/WO1988005405A1/fr
Priority claimed from PCT/US1987/002649 external-priority patent/WO1988005406A1/fr
Priority claimed from PCT/US1987/003418 external-priority patent/WO1988005407A1/fr
Priority claimed from US07/147,267 external-priority patent/US4804106A/en
Priority to EP88908041A priority Critical patent/EP0333805A1/fr
Application filed by Weirton Steel Corporation filed Critical Weirton Steel Corporation
Priority to MX015415A priority patent/MX173559B/es
Priority to AU23215/88A priority patent/AU2321588A/en
Priority to JP88507099A priority patent/JPH02502814A/ja
Priority to CA000578752A priority patent/CA1317241C/fr
Publication of WO1989002854A1 publication Critical patent/WO1989002854A1/fr
Priority to DK215489A priority patent/DK215489A/da
Priority to NO89891977A priority patent/NO891977L/no
Priority to FI892499A priority patent/FI892499A/fi
Priority to KR1019890700909A priority patent/KR890701434A/ko
Priority to ZA894521A priority patent/ZA894521B/xx
Priority to PT91227A priority patent/PT91227B/pt
Priority to ES898902590A priority patent/ES2015426A6/es
Priority to CN89104938A priority patent/CN1039769A/zh

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
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
    • 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
    • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
    • B65D2517/0001—Details
    • B65D2517/0058—Other details of container end panel
    • B65D2517/0074—Local recess in container end panel
    • B65D2517/0079—Local recess in container end panel located beneath tab hand grip to facilitate initial lifting

Definitions

  • This invention relates to end closure structure providing abuse-resistance in combination with controlled opening of a full-panel convenience-feature along with raw-edge metal shielding during and subsequent to opening; and, is concerned with methods and apparatus for fabrication of such closure struc ⁇ tures in addition to opening methods.
  • this invention is concerned with providing a full-panel, convenience-feature end closure made from steel which can be readily opened while also providing shielding for raw edge residual scoreline metal to provide an improved type of protection not previously available in such full-panel easy-open art.
  • this invention is concerned with providing increased strength for sheet metal easy-open end closures for protection against abuse during transportation, warehouse stacking and market handling.
  • FIG. 1 is a plan view of the exterior (public side) of an end closure structure embodying the invention
  • FIG. 2 is a plan view from the interior (content side) of the end closure of FIG. 1;
  • FIGS. 3 and 4 are radial cross sectional views of the end closure structure of FIG. 1 along lines 3-3 and 4-4, respectively;
  • FIG. 5 is an enlarged view of a portion of the radial cross sectional view of FIG. 3 at a location diametrically opposite to the position of an integral opener for such end closure;
  • FIG. 6 is an enlarged cross section schematic view of a portion of an end wall panel for purposes of describing interrelated placement of portions of an end closure structure for operation of the working end of an integral opener as taught by the invention
  • FIGS. 7-12 are cross-sectional views of tooling and end closure structure for purposes of describing sequential fabrication steps, in which: FIG. 7 shows results of a blank forming stage,
  • FIG. 8 shows initial configuration formation of a shallow depth rivet button and a peripheral shock- absorbing bead
  • FIG. 9 shows further forming of the rivet button and initiation of pre-folding of an inner multi-layer sheet metal fold for shielding residual torn metal remaining with a removable panel portion
  • FIG. TO shows scoring of the end wall panel and initiation of pre-folding of an outer multi-layer sheet metal fold for shielding residual torn metal remaining with the container
  • FIG. 11 shows completion of such multi-layer sheet metal folds and forming profiling in a panel portion
  • FIG. 12 shows completing formation of the . rivet securing an opener to the end wall panel
  • FIGS. 13 through 17 are perspective views of the end closure embodiment of FIG. 1 and a portion of a container for describing the opening procedure taught by the present invention.
  • end closure structure 27 shown in plan view of its exterior (public side) in FIG. 1, and in plan view of its interior (content side) in FIG. 2, is formed with chime seam metal 28 around its circular periphe ⁇ ry.
  • a longitudinally-rigid (non-lanced) opener 30 (FIG. 1) is secured to removable disc 31 by rivet 32.
  • the working end 33 of the elongated integral opener 30 is positioned in contiguous relationship to a portion of peripheral scoreline 34; the latter, as shown and generally preferable, has a circular configuration in plan view and defines the removable disc 31 portion of the recessed end wall panel of closure structure 27.
  • FIGS. 3 and 4 are taken along the full diameter of FIG. 1;
  • FIG. 5 is an enlarged cross sectional view of a portion of FIG. 3 diametrically opposite to the location of the working end 33 of opener 30.
  • Peripheral scoreline 34 is spaced radially inwardly from chuck wall 35 toward the central longitudinal axis for a container shown in later figures; such axis passes through the geometric center of the removable disc 31 and end closure structure 27.
  • a curvilinear vent scoreline portion 36 (FIG. 2) of the back scoreline means partially circumscribes rivet 32.
  • Such back scoreline means continues along legs 37, 38; with one each extending on opposite sides of the rivet with each having a major component of direction which is radial.
  • the back scoreline means is arch-shaped in configuration as shown in the embodiment of FIG. 2 and later figures; the arch-shape provides an added safety feature improvement over the moustache shaped back scoreline configuration previously provided and described in prior application Serial No. 07/147,267, filed January 22, 1988.
  • a multi-layer fold of sheet metal is positioned on each cross-sectional side of peripheral scoreline 34 (FIG. 5).
  • Each such multi-layer sheet-metal fold acts to shield the raw edge residual metal remaining after severing along a peripheral scoreline.
  • a triple-layer fold of sheet metal as described in more detail later herein, is adequate and is preferred to accomplish such purposes.
  • Triple-layer metal fold 40 (FIG. 6) remains with the severable portion 31 (disc shaped in the embodi ⁇ ment of FIGS. 1-5) upon and after severing along a peripheral scoreline 34.
  • Triple-layer fold 42 L which is positioned outwardly of the scoreline 34, and in accordance with a preferred embodiment of the inven ⁇ tion on the exterior surface (public side) of the end closure structure 27, remains with that portion of the end closure structure remaining with the container upon and after severing of scoreline 34.
  • Positioning of the rounded-edge transition zone 44 of multi-layer fold 42 (FIG. 6 enlargement controls any movement of the opener 30 and directs the opening force of its working end 33 toward the peripheral scoreline 34.
  • the rounded transition zone metal 43 of the multi-layer fold 40 is positioned oppositely but contiguous to the location of the peripheral scoreline 34.
  • rounded transition zone metal 43 has a predetermined diameter (measured in the plane of the end wall) which approximates, but is less than, the diameter of the rounded-edge transition zone metal 44 of multi-layer sheet-metal fold 42.
  • the apex of scoreline 34 (at which rupture occurs) can also approximate, but is less than the circumference of transition zone metal 44.
  • the torn portion of the peripheral scoreline 34 (at the apex of the "V" shaped radial cross-sectional configuration of the scoreline) has a diameter which can be approximately equal to that of rounded edge metal 43 of the transition zone for multi-layer fold 40 but, as pointed out immediately above, must be less than that of rounded edge metal 44 of the outer barrier-means multi-layer sheet metal fold 43; otherwise, edge 44 would block removal of a disc which presented metal of larger diameter.
  • Controlling movement of the integral opener so as to guide its working end 33 to contact the end wall panel within an acceptable range is carried out by positioning the multi-layer fold 42 so as to act as a barrier in which edge 44 stops radial movement of opener 30 and direct its working end 33 inwardly (in relation to a con ⁇ tainer) toward such peripheral scoreline 34 in the recessed end wall panel.
  • the scoreline 34 has a diameter (where rupture occurs) which approximates or is slightly greater than that of the transition zone metal 43 of multi-layer folds 40.
  • the open end of "V" shaped (in cross section) scoreline 34 is between about five and about ten thousandths of an inch in radial dimension. For example, scoring .006" deep with a scoring tool having a 50° included angle results in the open end of the "V" having a radial dimension of .0056"; and, scoring .009" deep with a scoring tool having a 60° included angle results in an open end having a radial dimension of .0104".
  • the working end of the opener is turned inwardly toward the recessed end wall panel by preventing radial movement of such working tip of the opener in the plane of, or parallel to the plane of, the end -wall panel.
  • the location of the barrier means, multi-layer fold 42 is selected to take into account the angled movement of the working end 33 toward scoreline 34.
  • the lever-action opening force is thus directed vertically downwardly toward the scoreline 34.
  • the radial distance between rounded edge 43 (approximately the same location as center of scoreline 34) and the barrier location of rounded edge 44 can be in a range between about five and about twenty thousandths of an inch for an end wall closure structure for a three (300) to a three and seven-sixteenths (307) inch diameter container in which the end wall comprises flat rolled steel of about .008" to .010" nominal thickness gage.
  • the new combination of steps taught provides in combination abuse resistance, controlled movement of the opener and shielding of raw edge metal features while still providing access and timing, during sequential fabrication steps, for efficient and effective peripheral scoreline and rivet button formation.
  • the sheet metal is blanked and an end panel 49, inboard of chuck wall 35, is countersunk in relation to chime metal 28.
  • a peripheral rim 50 is formed contiguous to chuck wall 35 for subsequent formation of shock-absorber bead 45 (as shown in FIG. 5, the outboard leg of such "U" shaped bead is an extension of chuck wall 35).
  • rim 50 From rim 50 a series of sheet metal portions, riser 51, step 52 and riser 53, extend in stepped fashion to recessed panel 49 which has an extended-planar-surface area.
  • transition zones 54, 55, 56 which are of compound-curvature in a circular configuration embodiment with each being curvilinear in radial cross section and also around its respective circumference in a plane which is perpendicularly transverse to the central longitudinal axis for a container to which the end closure struct ⁇ tre is attached.
  • steps and risers, along with the transition zones participate in formation of the double multi-layer sheet metal folds 40, 42 formed during the sequences of FIGS. 8-12.
  • Rim 50 leads through zone 54 to riser 51, which leads through zone 55 to step 52.
  • the latter leads through zone 56 to riser 53 which leads through zone 57 to portion 58 of the recessed end wall panel.
  • the timing of the shock-absorbing bead formation, rivet- button formation, the multi-layer folding action, and the extent to which multi-layer sheet metal pre-fold- ing is carried out prior to formation of the periph ⁇ eral scoreline . 34, are important considerations along 13 ar with the timing of end wall profiling formation in relation to securing an integral opener.
  • the peripheral scoreline 34 for the removable disc 31 is to be disposed in the end wall panel 49
  • preforming the rivet button prior to scoring enables completing the folding action, around such periphery, with minimized movement of sheet metal folds being required after such scoring so as to substantially preclude premature damage to residual scoreline metal.
  • an initial rivet button configuration 60 having a broad-diameter shallow-dome shape in cross section, is formed. Also, the sheet metal of peripheral rim 50 is pre-formed into shock-absorber bead 45. Step portion 52 is
  • Such horizontally-oriented metal portion 52 is to be located so as to interconnect the pair of multi-layer folds 40, 42. Shock-absorbing bead formation, the stages of multi-layer folding of the sheet metal, scoreline formation, the stages of rivet button formation, profiling ,_ riveting an opener- to the removable panel portion, and embossing opening instructions are coordinated while optimizing the number of sequential steps. In addition to the above enumerated advantages of scoring a single layer of metal and avoiding premature damage to residual scoreline metal, the rivet button formation and riveting actions are carried out without interfering with the metal folding or scoring operations.
  • Embossing opening instructions can be carried out simultaneously with formation of the rivet button and the profiling including recessed finger access, as described later herein.
  • the shock-absorbing bead (45) as initially pre ⁇ formed (FIG. 8) is loosely defined. Also, start of the movement of metal, including transition zone 54 and a portion of riser 51, which will comprise a part of the outer multi-layer fold, is taking place. In FIG. 9, a smaller-diameter, greater-depth rivet button 62 is formed and the pre-folding of metal portions for the inner multi-layer fold (40), that is riser portion 53 and a portion 58 of the end wall panel 49 contiguous to transition zone metal 57, are initiated. In FIG. 10, the sheet metal portion 54 of FIG.
  • Tool 68 also helps to locate such transition zone 44 while tool 70 helps to position transition zone 43 (of fold 40 in FIG. 6) as the multi-layer folds are being formed in final orientation.
  • the shape of the rivet button 62 is held by the tooling shown; and end wall panel profiling is being carried out.
  • FIG. 12 while maintaining the shock-absorbing bead 45 and protecting sheet metal folds 40, 42, the rivet button of FIG. 11, after receiving opener 30, is formed into rivet 32.
  • the registration and stacking protrusions 70, 72 (FIG. 1) are formed in the initial blanking stage.
  • the profile risers 76, 78 and finger indentation 80, to improve finger access beneath handle end 82 of opener 30, are formed in a subsequent sequence, prior to placement of the opener 30 for riveting, along with embossing of opening instructions 84.
  • Profile risers 76, 78 serve the function of holding the non-lanced opener 30 substantially parallel to the generally planar configuration of the end wall panel 49 for riveting. Such risers and the finger indentation 80 are formed in the centrally located recessed profile 74 of the end wall panel 49.
  • Back scoreline formation preferably takes place during formation of peripheral scoreline 34.
  • the arch-shaped back scoreline configuration of FIG. 2 which provides a chord of about 0.05" length between legs 37, 38 is preferred. This pre-selected chord length and the arch-shape segment defined by the back scoreline prevents any raw edge portion of the segment from extending over the side of the chime seam, thus preventing a hazard to safety.
  • the pre-selected half- inch chord length is also the approximate width of opener 30 at that location.
  • this "over the side" arcuate movement continues rupture of a significant major portion of peripheral scoreline 34 by Class I lever action about chime 92 as fulcrum.
  • This arch-shaped scoreline has a prese ⁇ lected chord length as shown (between 88, 90) which is no greater than the width of the opener at such location overlying such chord; such preselected chord length (about 0.50”) can be maintained for differing sized containers.
  • Transition zone 44 (ref.) 3.078" Scoreline 34 (C.L.) 3.068" Transition zone 43 (ref.) 3.064" Rivet 32 (C.L.) 2.443 Other representative dimensions Item Dimensions
  • Typical thicknesses for flat rolled aluminum end closures would be .009" to .012" with residual metal thickness for scored severing lines of about .004" to

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Closing Of Containers (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

La présente invention se rapporte à un couvecle d'extrémité à ouverture complète et de maniement aisé (27) pourvu d'un bourrelet absorbant les chocs (45) et situé à l'intérieur d'une ligne de portour incisée (34), laquelle définie le disque de paroi d'extrémité (31) qui est amovible à partir d'un panneau de paroi d'extrémité creux (49). Une ligne incisée arrière en forme d'arc présentant une partie d'évent centrale (36) et des segments (37, 38) est ménagée à l'intérieur du disque amovible (31) et coopère avec un ouvre-boîte longitudinalement rigide (non percé) (30) qui est rendu solidaire avec le couvercle par un rivet (32) formé avec la tôle du disque (31). Un repli en tôle multicouche (40) protège le bord brut du métal résiduel qui reste avec le disque (31) une fois rompue la ligne de pourtour incisée; et un repli en tôle multicouche (42) protège le métal de bord brut restant avec la boîte (94). La partie centrale (36) de la ligne incisée arrière est contiguë et tournée vers l'intérieur dans un sens radial par rapport au rivet (32) et la paire de segments (37, 38) s'étend avec un élément dirigé radialement sur les deux côtés du rivet en direction de la partie adjacente de la jointure périphérique de type jable (92). Les segments (37, 38) coupent le repli multicouche (40), formant ainsi une corde (88, 90) de longueur préselectionnée, autour de laquelle l'ouvre-boîte (30) tourne de façon à sectionner la ligne de pourtour incisée (34) par une action de levier continue.
PCT/US1988/002512 1987-01-23 1988-07-22 Couvercles d'extremite avec bords de protection et commande de l'ouverture, de maniement aise et resistant a l'endommagement WO1989002854A1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
JP88507099A JPH02502814A (ja) 1987-01-23 1988-07-22 酷使に耐え、安全な縁を有し、制御された開口の、便利な特徴を有する閉鎖体
AU23215/88A AU2321588A (en) 1987-01-23 1988-07-22 Abuse resistant, safety-edge, controlled-opening convenience-feature endclosures
EP88908041A EP0333805A1 (fr) 1987-01-23 1988-07-22 Couvercles d'extremite avec bords de protection et commande de l'ouverture, de maniement aise et resistant a l'endommagement
MX015415A MX173559B (es) 1987-01-23 1988-07-22 Tapas para extremo con caracteristica de comodidad de abertura controlada, con borde de seguridad resistentes al abuso
CA000578752A CA1317241C (fr) 1987-01-23 1988-09-28 Fermetures d'extremite pratiques a ouverture commandee, resistantes et a bord securitaire
DK215489A DK215489A (da) 1987-01-23 1989-05-02 Endelukke med egenskaber, der sikrer mod misbrug og giver en styret og bekvem aabning, og som er forsynet med en sikkerhedskant
NO89891977A NO891977L (no) 1987-01-23 1989-05-18 Endelukkeanordning av platemetall for beholder.
FI892499A FI892499A (fi) 1987-01-23 1989-05-23 Missbruk foerhindrande, med saekerhetskant foersedda burkfoerslutningar med en reglerbar, laettoeppnad konstruktion.
KR1019890700909A KR890701434A (ko) 1987-09-29 1989-05-23 용기용 판금단부 봉합 구조체 및 그 제조방법
ZA894521A ZA894521B (en) 1987-01-23 1989-06-14 Container end closure
PT91227A PT91227B (pt) 1987-01-23 1989-07-20 Estrutura de fundo de um recipiente e processo para a sua fabricacao
CN89104938A CN1039769A (zh) 1987-01-23 1989-07-21 包装容器端头封闭物
ES898902590A ES2015426A6 (es) 1987-01-23 1989-07-21 Una estructura de cierre extremo para un envase y metodo para fabricarla.

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
PCT/US1987/000102 WO1988005405A1 (fr) 1987-01-23 1987-01-23 Structure de paroi terminale avec disque a retirer et dispositif de securite
USPCT/US87/02649 1987-09-29
PCT/US1987/002649 WO1988005406A1 (fr) 1987-01-23 1987-09-29 Couvercle de recipient s'ouvrant par enlevement d'un disque et caracteristiques pour assurer la securite de l'utilisateur
USPCT/US87/03418 1987-12-23
PCT/US1987/003418 WO1988005407A1 (fr) 1987-01-23 1987-12-23 Structure de paroi terminale avec disque a retirer et dispositif de securite
US07/147,267 US4804106A (en) 1987-09-29 1988-01-22 Measures to control opening of full-panel safety-edge, convenience-feature end closures
US147,267 1988-01-22
PCT/US1988/002475 WO1989002853A1 (fr) 1987-09-29 1988-07-20 Moyens servant a commander l'ouverture de couvercles d'extremite a plaque pleine, avec un bord de protection et de maniement aise
USPCT/US88/02475 1988-07-20

Publications (1)

Publication Number Publication Date
WO1989002854A1 true WO1989002854A1 (fr) 1989-04-06

Family

ID=42985606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/002512 WO1989002854A1 (fr) 1987-01-23 1988-07-22 Couvercles d'extremite avec bords de protection et commande de l'ouverture, de maniement aise et resistant a l'endommagement

Country Status (13)

Country Link
EP (1) EP0333805A1 (fr)
JP (1) JPH02502814A (fr)
CN (1) CN1039769A (fr)
AU (1) AU2321588A (fr)
CA (1) CA1317241C (fr)
DK (1) DK215489A (fr)
ES (1) ES2015426A6 (fr)
FI (1) FI892499A (fr)
MX (1) MX173559B (fr)
NO (1) NO891977L (fr)
PT (1) PT91227B (fr)
WO (1) WO1989002854A1 (fr)
ZA (1) ZA894521B (fr)

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KR200478678Y1 (ko) * 2013-10-02 2015-11-04 이규택 안전 캔

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JP4490847B2 (ja) * 2005-02-23 2010-06-30 サントリーホールディングス株式会社 缶蓋及びこれを備えた缶容器
JP4731188B2 (ja) 2005-03-22 2011-07-20 大和製罐株式会社 開口容易缶蓋
ES2598495T3 (es) * 2011-03-31 2017-01-27 Ardagh Mp Group Netherlands B.V. Un cuerpo de recipiente, un recipiente y un método para realizar un cuerpo de recipiente
CN104174783B (zh) * 2014-07-15 2016-07-06 广东英联包装股份有限公司 一种开口后双边不伤手的易拉盖的制作方法
US10005117B2 (en) * 2015-10-20 2018-06-26 Admc Holding, Llc End cap seaming apparatus and method for seaming an end cap
CN108482798B (zh) * 2018-03-23 2020-05-19 烟台亿拉得包装科技股份有限公司 杠杆式易拉瓶盖
JP2021187470A (ja) 2020-05-28 2021-12-13 大和製罐株式会社 缶蓋用タブ及び缶蓋
JP2021187471A (ja) 2020-05-28 2021-12-13 大和製罐株式会社 缶蓋
CN113928681A (zh) * 2021-10-28 2022-01-14 珠海博瑞特包装科技有限公司 一种双保边全开盖

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US3833144A (en) * 1972-07-10 1974-09-03 American Can Co Two position pull tab easy-open container component
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US3195767A (en) * 1961-02-10 1965-07-20 Continental Can Co Plastic pull tab to metal tear strip connection with mechanical interlock
US3186582A (en) * 1961-10-30 1965-06-01 Continental Can Co Pivoted pull handle for easy opening scored ham can end
US3781972A (en) * 1970-10-30 1974-01-01 Carnaud & Forges Method of securing a pull ring to an easy opening can end
US3875884A (en) * 1971-11-03 1975-04-08 Nat Can Corp Full open end and method of making
US3833144A (en) * 1972-07-10 1974-09-03 American Can Co Two position pull tab easy-open container component
US3813001A (en) * 1972-08-31 1974-05-28 Continental Can Co Latching arrangement for ring pull tab of an easy opening container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200478678Y1 (ko) * 2013-10-02 2015-11-04 이규택 안전 캔

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MX173559B (es) 1994-03-16
AU2321588A (en) 1989-04-18
EP0333805A1 (fr) 1989-09-27
ES2015426A6 (es) 1990-08-16
CN1039769A (zh) 1990-02-21
DK215489D0 (da) 1989-05-02
PT91227B (pt) 1995-07-06
CA1317241C (fr) 1993-05-04
FI892499A0 (fi) 1989-05-23
PT91227A (pt) 1990-02-08
NO891977L (no) 1989-07-28
DK215489A (da) 1989-05-26
JPH02502814A (ja) 1990-09-06
FI892499A (fi) 1989-05-23
ZA894521B (en) 1990-03-28
NO891977D0 (no) 1989-05-18

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