Patent ID: 8322675
Filing Date: 2012-12-04
Classification: B21D,B60N,Y10T

Abstract:
1. A vehicle seat comprising a seat part equipped with a rigid frame, and a height adjustment mechanism comprising: at least one link intended to be pivotably mounted relative to a floor of the vehicle, with said link having two substantially parallel lateral surfaces, and a bore extending between said lateral surfaces, said bore being delimited by an internal cylindrical surface of a generally circular cross-section, along an axis substantially perpendicular to said lateral surfaces, with said bore comprising at least one substantially radial notch, a revolving tube pivotably mounted on the rigid frame, said tube extending along the axis and having a fitting portion placed in the bore, said tube externally comprising two axial stops which delimit between them the fitting portion and which are respectively in contact with the lateral surfaces of the link, at least one of said axial stops consisting of a radial deformation of the tube to form a bead, said bead having a stop surface and a support surface opposite the stop surface, said stop surface being in contact with one of the lateral surfaces, the fitting portion externally comprising at least one locally formed radial deformation facing the notch and forming a bulge, said bulge extending into the notch, wherein the bead comprises at least one axial indentation in the support surface, facing the notch, said indentation being adjacent to the bulge, said indentation being a sunk relief in the support surface and causing material of the bead to be displaced towards the fitting portion to increase the amount of material of the tube extending into the notch.