Motor vehicle front unit assembly including means for adjusting the positions of the light units, an adjustment tool for this purpose, and a method of assembling such a front unit
The assembly includes a front face, a bumper skin, two flexible brackets, and two light units, each of which is rigidly secured to a corresponding bracket. The assembly further includes pre-positioning and guide elements adapted to provide pre-positioning that allows a first end of each of the brackets to move in a substantially axial direction relative to the front face, the elements including members for driving the first end in axial translation relative to the front face, the members operating by meshing, and elements for releasably receiving an adjustment tool in a meshing position. An adjustment tool, and a method of assembling and mounting such a front unit assembly are also disclosed.
The assembly includes: a front face; a structural front portion (4); a fender front portion (5); a flexible beam (43); and a headlight unit fastened to said beam (43). It further comprises: a centering and guide part (71) fastened to the structural front portion, in a position that can be adjusted, during assembly, along three axes (X, Y, Z); fastening and centering means (83, 85) for fastening the end (43B) of the beam to said part (71) and for centering it thereon; and guide means (93, 95) for guiding the fender front portion (5) on said part (71), providing a sliding connection slidable along one of the three axes (X), making relative adjustment movements possible in order to absorb deformation in said fender front portion. The invention is also relates to a motor vehicle including such an assembly.
A tubular front end structure for use with a unitized automotive frame. The tubular front end structure includes a pair of upper frame rail members that are welded to the A-pillar at vertically spaced positions. A first upper rail member provides support for the fender and bends downwardly and forwardly to support tubular upper and lower radiator supports. The other upper rail member connects to the other upper rail member and bends downwardly to connect with the lower frame rail at an intermediate position to provide support for the shock tower. The lower frame rail is formed with an "S-bend" to correspond to the shape of the unitized automotive frame and includes a bracket attached thereto at the S-bend to increase the section properties of the lower frame rail as required to maintain the section properties of the replaced frame structure.
