[go: up one dir, main page]

EP1268294A4 - Couvercle et recipient soudes par friction - Google Patents

Couvercle et recipient soudes par friction

Info

Publication number
EP1268294A4
EP1268294A4 EP01924629A EP01924629A EP1268294A4 EP 1268294 A4 EP1268294 A4 EP 1268294A4 EP 01924629 A EP01924629 A EP 01924629A EP 01924629 A EP01924629 A EP 01924629A EP 1268294 A4 EP1268294 A4 EP 1268294A4
Authority
EP
European Patent Office
Prior art keywords
container
lid
debris
extending
spin welding
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Withdrawn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
EP01924629A
Other languages
German (de)
English (en)
Other versions
EP1268294A1 (fr
Inventor
Donald J Roth
Robert W Fraser
Donald G Sauer
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.)
Silgan Containers LLC
Original Assignee
Silgan Containers LLC
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 Silgan Containers LLC filed Critical Silgan Containers LLC
Publication of EP1268294A1 publication Critical patent/EP1268294A1/fr
Publication of EP1268294A4 publication Critical patent/EP1268294A4/fr
Withdrawn legal-status Critical Current

Links

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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis

Definitions

  • This invention relates to new and improved containers for containing and protecting products and more particularly relates to improved structural features in the container body and also in an end closure for closing and sealing the container body.
  • the invention further relates to methods and apparatus for locating the end closure onto the container and spin welding the two components together to provide an hermetically sealed container suitable for a plethora of products including, but not limited to, containers for food and beverages suitable for human and animal consumption, as well as any other dry, moist or liquid product that needs to be protected from the elements.
  • the invention relates to improvements in containers 10 and lids 11 for closing the containers to provide improved sealing characteristics as well as improved handling characteristics of the separate constituents incident to placing a lid onto the open end of a container, and relatively spinning the lid and container under pressure to generate sufficient heat to cause partial melting of thermoplastic material used to form the container and/or the lid structure ⁇
  • FIG. 1 is an enlarged, vertical, sectional view through a portion of a container body 10 and a lid 11.
  • FIG. 2 is an elevational view of a container and lid thereon and having an encircled portion corresponding to the enlarged view of FIG. 1.
  • FIG. 3 is a plan view of the container and lid shown in FIG. 2.
  • FIG. 4 is an enlarged, fragmentary, sectional view similar to FIG. 1 and shows the parts prior to force being applied during a spinning, closing operation.
  • FIG. 5. is a sketch similar to FIG. 4 and shows migration of plastic material from the lid and container following the spin welding process.
  • FIG. 6 is a fragmentary, vertical sectional view of a nest 60 for receiving and holding a container body during the closing operation.
  • FIG. 7 is a bottom view of a chuck 70 which engages the lid during the spinning operation.
  • FIG. 8 is a fragmentary, elevational view of a chuck 70 including a series of knives 80 for engaging a rim of a container lid.
  • FIG. 9 is an enlarged view of a knife 80 shown in FIG.8.
  • FIG. 10 is an elevational view of one knife 90 for engaging the underside of a container flange 92 during spinning of the lid onto the container.
  • FIG. 11 is a fragmentary showing of a side view of a knife 90 of FIG. 10. DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Lid 11 includes a hinged pull tab 27 connected to end panel 17, as is shown in FIG. 3, to aid in removal of panel 17 from lid frame portion 16.
  • the lid 11 is held in a spinning chuck 70 (see FIG. 8) so that the outer wall, or skirt portion 31, of the lid frame portion 16 is cammed radially inwardly into contact with the outer portion of the tongue 20.
  • Rotation of the lid 11, or the container 10 generates heat for melting, and then fusing, of the lid to the top portion of the container body.
  • the spinning process is, generally speaking, old in the art but both the container bowl and the lid are considered to be novel improvements over the prior art.
  • the lid 11 is designed to be downwardly loaded at point 22 as shown in FIG. 1 to engage the top of the tongue at 18 before the bottom of the skirt or leg of the lid frame meets the container flange at point 24.
  • the underside of the container 10 or bowl flange 92 is supported by a nest 60 (shown in FIGS. 6 and 8), the nest being a part of the Spin Welding machine (not shown).
  • the result is that the leg or skirt portion of the lid frame 16 is rotated radially inwardly against the side of the tongue 21, heat is generated during the spinning operation and molten plastic flows from the top portion 18 of the tongue 21, and the inside surface of the groove 14, and flows in the manner shown in FIG. 5.
  • the molten material cools, solidifies and creates a bond between the lid and the container.
  • a series of radial ribs 15 on the top inside edge of the frame portion 16 of the lid 11 facilitates slippage of the lids during high speed feeding of sequential lids by keeping the leg on an uppermost lid from hanging up on the adjacent end panel 17 of the adjacent lid.
  • Oxygen absorbers are specifically added to the material of the frame of the lid to reduce oxygen permeation when the container is to contain oxygen sensitive food products and the like.
  • Oxygen absorbers, in combination with high barrier polymers 61, such as EVOH, in the lid stock provides better protection to oxygen than metal ends.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Selon la présente invention, un récipient (10) et son couvercle (11) sont pourvus de languettes (21) et de rainures (14) permettant d'établir une liaison fondue pendant une opération de soudage par friction. L'ensemble est pourvu d'une pluralité de pièces à débris (66, 68) venant recueillir la matière fondue pour éviter la contamination du contenu du récipient. Le couvercle (11) comporte une collerette ou une jupe (24) dont une face d'extrémité vient au contact d'un rebord (55) du récipient (10) de façon à former en interface une surface fondue.
EP01924629A 2000-04-03 2001-04-03 Couvercle et recipient soudes par friction Withdrawn EP1268294A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US19403000P 2000-04-03 2000-04-03
US194030P 2000-04-03
PCT/US2001/010764 WO2001074677A1 (fr) 2000-04-03 2001-04-03 Couvercle et recipient soudes par friction

Publications (2)

Publication Number Publication Date
EP1268294A1 EP1268294A1 (fr) 2003-01-02
EP1268294A4 true EP1268294A4 (fr) 2004-03-17

Family

ID=22716014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01924629A Withdrawn EP1268294A4 (fr) 2000-04-03 2001-04-03 Couvercle et recipient soudes par friction

Country Status (4)

Country Link
EP (1) EP1268294A4 (fr)
AU (1) AU5126901A (fr)
CA (1) CA2377928A1 (fr)
WO (1) WO2001074677A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1070918A (en) * 1964-07-13 1967-06-07 Shell Int Research Method for closing a container,and container closed according to this method
US4919987A (en) * 1987-01-15 1990-04-24 Verwaltungsgesellschafft Geiger Plastic GmbH & Co. KG Process for the joining of polyamide parts by friction welding

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706393A (en) * 1971-07-12 1972-12-19 Pelorex Corp Plastic container and method of making the same
GB2217254A (en) * 1988-04-13 1989-10-25 Metal Box Plc Method and apparatus for spin welding
US5263606A (en) * 1992-01-17 1993-11-23 Continental Plastics, Inc. Squeeze container with sonically welded flexible tubular body and bottom cover
JPH07330081A (ja) * 1994-06-14 1995-12-19 Nippondenso Co Ltd 容 器
US5670108A (en) * 1995-11-03 1997-09-23 General Motors Corporation Method of molding a plastic vessel having a flash trap
JP3403050B2 (ja) * 1997-05-26 2003-05-06 小島プレス工業株式会社 樹脂製リザーバータンク及びその製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1070918A (en) * 1964-07-13 1967-06-07 Shell Int Research Method for closing a container,and container closed according to this method
US4919987A (en) * 1987-01-15 1990-04-24 Verwaltungsgesellschafft Geiger Plastic GmbH & Co. KG Process for the joining of polyamide parts by friction welding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0174677A1 *

Also Published As

Publication number Publication date
EP1268294A1 (fr) 2003-01-02
AU5126901A (en) 2001-10-15
WO2001074677A9 (fr) 2004-06-17
CA2377928A1 (fr) 2001-10-11
WO2001074677A1 (fr) 2001-10-11

Similar Documents

Publication Publication Date Title
US5692635A (en) Easy open closure
KR100964349B1 (ko) 용기 마개
US5020686A (en) Closure for a resealable container
US3934749A (en) Plastic container
US4840289A (en) Spin-bonded all plastic can and method of forming same
CA2523823C (fr) Contenant avec soupape de degazage
JPH0219255A (ja) シールディスク保持手段を有するこじ開け識別可能な容器キャップ
JPS6226991B2 (fr)
US20050133508A1 (en) Tamper evident lid welded to a container
US6688486B2 (en) Easy open end and can for powders
EA000651B1 (ru) Крышка
AU2006329069A1 (en) A packaging with lid sealable to container and a method of sealing the packaging
KR20070020165A (ko) 캔 폐쇄구조
CA2722331A1 (fr) Couvercle a propriete de barriere
WO2001074677A1 (fr) Couvercle et recipient soudes par friction
EP1013562A2 (fr) Récipient comportant un réceptacle, une bande d'étanchéité et un couvercle
KR20040094410A (ko) 용기 마게
JP3008135B2 (ja) 物質包装ユニットと包装方法
GB2120200A (en) Lidded containers
EP3870514A2 (fr) Récipient en carton recyclable
JP2926659B2 (ja) 加熱シール容器
EP3781487B1 (fr) Boîtier à structure de couvercle séparable
GB2470916A (en) Foiled closure with swivel member
MX2008008173A (en) Drinking fitment
JP2004238064A (ja) 瓶用中栓およびこの瓶用中栓の製造方法

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020308

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

A4 Supplementary search report drawn up and despatched

Effective date: 20040130

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SILGAN CONTAINERS CORPORATION

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 29C 65/00 A

Ipc: 7B 65B 7/28 B

17Q First examination report despatched

Effective date: 20040517

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040928