The present invention relates to a fibrous preform of a core part of a fibrous reinforcement for a part made of composite material, the preform having a slender shape along a longitudinal direction (X) and being formed by first threads (C1-C16) extending in the longitudinal direction, with second threads (t1-t8) transverse to the first threads, the preform comprising two longitudinal ends intended for articulation with other parts, as well as a median area located between the longitudinal ends, each longitudinal end having a thickness greater than a thickness of the median area, the median area having a stiffening portion (102c) comprising non-woven first threads (C5-C12), and each longitudinal end comprising a three-dimensional weaving of the first threads of this stiffening portion with second threads.
RENFORT FIBREUX POUR LA FABRICATION D'UNE PIECE COMPOSITE DESTINEE A ETRE ARTICULEE AVEC D'AUTRES PIECES
FIBROUS REINFORCEMENT FOR THE MANUFACTURE OF A COMPOSITE PART INTENDED TO BE ARTICULATED WITH OTHER PARTS
FASERVERSTÄRKUNG ZUR HERSTELLUNG EINES VERBUNDTEILS, DAS ZUR VERBINDUNG MIT ANDEREN TEILEN BESTIMMT IST
2025-04-30
Patent
Electronic Resource
French
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 / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / 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 / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B64C AEROPLANES , Flugzeuge / D03D WOVEN FABRICS , Gewebe / F16C SHAFTS , Wellen |
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