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1. (WO1990002038) METHOD AND DEVICE FOR JOINING TOGETHER OF TUBULAR PLASTIC PRODUCTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1990/002038 International Application No.: PCT/FI1989/000153
Publication Date: 08.03.1990 International Filing Date: 23.08.1989
Chapter 2 Demand Filed: 07.03.1990
IPC:
B29C 45/14 (2006.01) ,B29C 65/00 (2006.01) ,B29C 65/70 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
14
incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
70
by moulding
Applicants: STOOR, Ralf[FI/FI]; FI (UsOnly)
OY MUOTEKNO AB[FI/FI]; PB 171 SF-65101 Vasa, FI (AllExceptUS)
Inventors: STOOR, Ralf; FI
Agent: OY JALO ANT-WUORINEN AB; Skepparebrinken 2 A SF-00120 Helsingfors, FI
Priority Data:
88388523.08.1988FI
Title (EN) METHOD AND DEVICE FOR JOINING TOGETHER OF TUBULAR PLASTIC PRODUCTS
(FR) PROCEDE ET DISPOSITIF D'ASSEMBLAGE DE PRODUITS PLASTIQUES TUBULAIRES
Abstract:
(EN) The present invention concerns a method and a device for joining together of tubular plastic products (1, 2) by heating the joint faces of the plastic products (1, 2), which have been chamfered at least partly in advance, and by passing molten plastic material into the space (4) that is formed between the opposite joint faces. The invention is characterized in that the fixing of the tubular plastic products (1, 2) and the feed of the molten plastic material take place with the aid of a mould tool (5) which is applied onto the space (4), and molten plastic material is passed rapidly into the hollow space between the mould tool (5) and the joint faces through a feed stub (6) provided in the mould tool.
(FR) Cette invention concerne un procédé et un dispositif d'assemblage de produits plastiques tubulaires (1, 2) consistant à chauffer les faces d'assemblage des produits plastiques (1, 2) ayant été préalablement chanfreinés au moins partiellement, et à passer de la matière plastique fondue dans l'espace (4) formé entre les faces d'assemblage opposées. L'invention se caractérise en ce que la fixation des produits plastiques tubulaires (1, 2) et l'alimentation en matière plastique fondue s'effectuent à l'aide d'un outil de moulage (5) appliqué sur l'espace (4), et que l'on fait passer rapidement la matière plastique fondue dans l'espace creux entre l'outil de moulage (5) et les faces d'assemblage, à travers une ouverture d'alimentation (6) prévue dans l'outil de moulage.
Designated States: GB, JP, NO, US
European Patent Office (EPO) (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: Swedish (SV)