The invention relates to a plastic part (3) used in the manufacture of a motor vehicle spoiler (1) or motor vehicle door strip, the part (3) comprising at least one wall (32) intended to be vibration-welded to another component part (2) of the spoiler (1) or the door strip, characterised in that the wall (32) is provided with at least one network of raised pins (11, 21) intended to form a welding region (4, 5), the pins (11, 21) having a substantially identical shape, consisting of a cylindrical base and a conical end, the network comprising a plurality of rows (L1-L4) of pins (11, 21) extending in a first direction (D0), the pins (11, 21) of two adjacent lines being arranged in a staggered fashion, and in that the pins (11, 21) are distributed uniformly in the network, the surface density (ds') of the pins (11, 21) in the network being between 0.08 pins/mm2 and 0.12 pins/mm2, and preferably between 0.10 pins/mm2 and 0.11 pins/mm2.


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    Title :

    PIÈCE EN MATIÈRE PLASTIQUE MISE EN OEUVRE LORS DE LA FABRICATION D'UN BECQUET D'UN VÉHICULE AUTOMOBILE


    Additional title:

    PLASTIC PART USED IN THE MANUFACTURE OF A MOTOR VEHICLE SPOILER
    KUNSTSTOFFTEIL ZUR HERSTELLUNG EINES KRAFTFAHRZEUG-SPOILERS


    Contributors:

    Publication date :

    2025-06-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge



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