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1. WO1997040974 - PROCEDE ET DISPOSITIF DE THERMOSOUDAGE DE LONGUEURS DE PROFILES DESTINES A DES JOINTS D'ETANCHEITE

Numéro de publication WO/1997/040974
Date de publication 06.11.1997
N° de la demande internationale PCT/EP1996/001742
Date du dépôt international 25.04.1996
Demande présentée en vertu du Chapitre 2 08.04.1997
CIB
B29C 65/00 2006.01
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
65Assemblage d'éléments préformés; Appareils à cet effet
B29C 65/02 2006.01
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
65Assemblage d'éléments préformés; Appareils à cet effet
02par chauffage, avec ou sans pressage
B29C 65/78 2006.01
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
29TRAVAIL DES MATIÈRES PLASTIQUES; TRAVAIL DES SUBSTANCES À L'ÉTAT PLASTIQUE EN GÉNÉRAL
CFAÇONNAGE OU ASSEMBLAGE DES MATIÈRES PLASTIQUES; FAÇONNAGE DES MATIÈRES À L'ÉTAT PLASTIQUE NON PRÉVU AILLEURS; POST-TRAITEMENT DES PRODUITS FAÇONNÉS, p.ex. RÉPARATION
65Assemblage d'éléments préformés; Appareils à cet effet
78Moyens pour la manipulation des éléments à assembler, p.ex. pour la fabrication de récipients ou d'objets creux
CPC
B29C 65/20
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
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
18using heated tools
20with direct contact, e.g. using "mirror"
B29C 65/7847
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
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
78Means for handling the parts to be joined, e.g. for making containers or hollow articles ; , e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
7841Holding or clamping means for handling purposes
7847using vacuum to hold at least one of the parts to be joined
B29C 66/1162
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
66General aspects of processes or apparatus for joining preformed parts
01General aspects dealing with the joint area or with the area to be joined
05Particular design of joint configurations
10particular design of the joint cross-sections
11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
116Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
1162Single bevel to bevel joints, e.g. mitre joints
B29C 66/52431
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
66General aspects of processes or apparatus for joining preformed parts
50General 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
51Joining 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
52Joining tubular articles, bars or profiled elements
524Joining profiled elements
5243for forming corner connections, e.g. for making window frames or V-shaped pieces
52431with a right angle, e.g. for making L-shaped pieces
B29C 66/632
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
66General aspects of processes or apparatus for joining preformed parts
50General 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
63Internally supporting the article during joining
632using a fluid
B29C 66/71
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
66General aspects of processes or apparatus for joining preformed parts
70characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
71characterised by the composition of the plastics material of the parts to be joined
Déposants
  • INDUSTRIE ILPEA S.P.A. [IT]/[IT] (AllExceptUS)
  • CITTADINI, Paolo [IT]/[IT] (UsOnly)
  • LOVISON, Umberto [IT]/[IT] (UsOnly)
Inventeurs
  • CITTADINI, Paolo
  • LOVISON, Umberto
Mandataires
  • APPOLONI, Romano
Données relatives à la priorité
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) METHOD AND APPARATUS FOR HEAT-WELDING LENGTHS OF PROFILES FOR SEALING GASKETS
(FR) PROCEDE ET DISPOSITIF DE THERMOSOUDAGE DE LONGUEURS DE PROFILES DESTINES A DES JOINTS D'ETANCHEITE
Abrégé
(EN)
A method for heat-welding at the corners lengths of profiles (10, 11) for sealing gaskets, for example for refrigerators or the like, of the type comprising at least one bellows-like extendible, or compressible, air chamber, which method comprises the steps of positioning two lengths of profile with their ends opposite to each other, heating said ends, while simultaneously choking (27, 28) each of said lengths of profile nearby said ends so as to completely occlude said air chamber (13) along the choking section, closing the mould (19, 20) in order to cause said pair of lengths of profile to come into mutual mating contact at their heated ends, and injecting air into the interior of said air chamber in the region comprised between the choking section and the ends of said lengths of profile.
(FR)
Ce procédé de thermosoudage, aux angles, de longueurs de profilés (10, 11) destinés à des joints d'étanchéité, par exemple à des réfrigérateurs ou analogue, et du type comportant au moins une chambre à air compressible ou extensible à la manière d'un soufflet, comprend les étapes consistant à placer deux longueurs de profilé, en opposant l'une à l'autre leurs extrémités, à chauffer ces extrémités tout en étranglant (27, 28) chaque longueur de profilé à proximité de celles-ci, afin de fermer complètement ladite chambre à air (13) le long de cette section étranglée, à fermer le moule (19, 20) afin de provoquer la fusion de ladite paire de longueurs de profilé, au niveau des extrémités chauffées, puis à injecter de l'air dans la chambre à air, dans la région comprise entre la section étranglée et les extrémités des longueurs de profilé.
Également publié en tant que
MXPA/a/1998/008142
TR1998/01468
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