Said preform (3) defining two parts (21, 23) and comprising: a first group (C1) of layers of warp yarns, which is external in the first part, a second group (C2) of layers of warp yarns immediately beneath said first group, and a first group (T1) of layers of weft yarns which is external in the first part. Furthermore, the first group of layers of warp yarns is absent in the second part and the first group of layers of weft yarns (19) extends into the second part, the first group of layers of weft yarns being external in the second part. The yarns of the first weft group have a lower yarn count than the yarns of the second weft group; and/or the yarns of the first warp group have a lower yarn count than the yarns of the second warp group.


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    Title :

    PRÉFORME, PIÈCE D'OSSATURE ET PROCÉDÉ DE FABRICATION D'UNE TELLE PRÉFORME


    Additional title:

    PREFORM, FRAMEWORK PART, AND METHOD FOR PRODUCING SUCH A PREFORM
    VORFORMLING, FÜGETEIL UND VERFAHREN ZUR HERSTELLUNG EINES DERARTIGEN VORFORMLINGS


    Contributors:

    Publication date :

    2020-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B64C AEROPLANES , Flugzeuge / D03D WOVEN FABRICS , Gewebe



    PREFORME, PIECE D'OSSATURE ET PROCEDE DE FABRICATION D'UNE TELLE PREFORME

    RISICATO JEAN VINCENT / VARANIAC PATRICK | European Patent Office | 2019

    Free access

    PRÉFORME, PIÈCE D'OSSATURE ET PROCÉDÉ DE FABRICATION D'UNE TELLE PRÉFORME

    RISICATO JEAN VINCENT / VARANIAC PATRICK | European Patent Office | 2018

    Free access


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    Free access

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    Free access