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1. WO1997027037 - MOULD FOR PRODUCING BOTTLE CAPS WITH TUCKED-IN TABS, AND RESULTING CAP

Publication Number WO/1997/027037
Publication Date 31.07.1997
International Application No. PCT/FR1997/000126
International Filing Date 22.01.1997
Chapter 2 Demand Filed 14.08.1997
IPC
B29C 45/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C 45/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
40Removing or ejecting moulded articles
44for undercut articles
B65D 41/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
DCONTAINERS 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
41Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
32Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
34Threaded or like caps or cap-like covers
CPC
B29C 2045/0056
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
0053combined with a final operation, e.g. shaping
0055Shaping
0056folding back undercut forming parts, e.g. tabs of closures
B29C 45/0055
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
0053combined with a final operation, e.g. shaping
0055Shaping
B29C 45/4407
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
40Removing or ejecting moulded articles
44for undercut articles
4407by flexible movement of undercut portions of the articles
B29C 57/12
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
57Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor ; , e.g. collapsible mandrels
12Rim rolling
B29L 2001/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2001Articles provided with screw threads
B29L 2031/565
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
2031Other particular articles
56Stoppers or lids for bottles, jars, or the like ; , e.g. closures
565for containers
Applicants
  • ASTRA PLASTIQUE [FR]/[FR] (AllExceptUS)
  • CHAMPAGNON, Pascal [FR]/[FR] (UsOnly)
  • BENOIT-GONIN, Claude [FR]/[FR] (UsOnly)
Inventors
  • CHAMPAGNON, Pascal
  • BENOIT-GONIN, Claude
Agents
  • CABINET GERMAIN ET MAUREAU
Priority Data
96/0118926.01.1996FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MOULD FOR PRODUCING BOTTLE CAPS WITH TUCKED-IN TABS, AND RESULTING CAP
(FR) MOULE POUR FORMER DES BOUCHONS A LANGUETTES RETOURNEES AINSI QUE BOUCHON FORME DANS UN TEL MOULE
Abstract
(EN)
A mould for producing a bottle cap (1) comprising a cylindrical skirt (3) provided with at least one screw thread (4), a bottom wall (2) and a tamper-evident ring (6) connected to the free end of the skirt via frangible bridge portions. The mould includes a movable portion or mould bottom (20), a stripper portion or stripping ring (21) and a core (22) designed to be removed by translation without rotation. At least one notch and/or projection is provided in at least two separate positions at the lower edge of the skirt on the side of the stripping ring (21) that faces the bottom of the mould (20), whereby a mortise-and-tenon joint is formed between the skirt (3) and the stripping ring (21) during moulding of the cap (1) and its removal from the mould.
(FR)
Ce moule est destiné à former un bouchon (1) comportant une jupe cylindrique (3) munie d'au moins un filet de vissage (4), un fond (2) et une bague d'inviolabilité (6) reliée à l'extrémité libre de la jupe par des pontets ruptibles. Il présente une partie mobile ou fond de moule (20), une partie dévêtisseuse ou bague dévêtrice (21) et un noyau (22) destiné à être retiré par un mouvement de translation, sans rotation. La bague dévêtrice (21) présente du côté faisant face au fond du moule (20), au niveau du bord inférieur de la jupe et en au moins deux endroits distincts, au moins une encoche et/ou au moins une saillie afin de créer une liaison tenon/mortaise entre la jupe (3) et la bague dévêtrice (21) lors des moulage et démoulage du bouchon (1).
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