| 主权项 |
1. A hinge mechanism comprising:
a first frame and a second frame mounted to rotate relative to one another about at least one axis of rotation and at least partially bounding an interior space, the second frame comprising an annular rim at least partially receiving the first frame and having an axial end face, an adjustment device adapted to allow adjustment of the angular position between the first frame and second frame, a stop member protruding from the first frame and at least partially arranged within the interior space, the stop member cooperating in abutment with the second frame to limit the relative rotation of the first frame and second frame between first and second angular end-of-travel positions, wherein the axial end face of said annular rim comprises a stepped-down recess in only a portion of the axial thickness of the annular rim and extending angularly between two shoulders, said recess forming a guide track along a circular arc contained in a radial plane and extending angularly between two shoulders forming counter-stops, and wherein the stop member extends in a radial plane in immediate proximity to the radial plane containing the guide track, said stop member projecting radially to said guide track, such that the stop member is mounted to move along said guide track and is adapted to cooperate with said counter-stops to limit the relative rotation of the first frame and second frame between the first and second angular end-of-travel positions. |
