An inner tube for a telescopic steering column (8) is provided, with a first end sector (2) for assembling a bearing (9), having a substantially circular cross-section obtained by reducing and drawing, a second end sector (3) and an intermediate sector (4) having a regular polygonal section, provided with longitudinal planar external guiding faces (5), wherein the first end sector (2) comprises a plurality of external flanges (6) emerging longitudinally from its external surface (2a) in axial alignment with at least some of the external guiding faces (5), and a plurality of longitudinal internal recesses (7) penetrating its inner surface (2b), each internal recess (7) extending under one of the external flanges (6); each external flange (6) comprises an essentially planar external surface which is at least partially flush with the external guiding face (5) with which it is aligned.


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    Titel :

    Inner tube for a telescopic steering column for an automotive vehicle, method for forming a first end sector in such inner tube and reducing and drawing device for forming the end


    Beteiligte:

    Erscheinungsdatum :

    2016-07-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING , Herstellen von Blechen, Metalldraht, -stangen, -rohren Metallprofilen oder Halbzeugen auf andere Weise als durch Walzen




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