A bumper support beam for a vehicle is provided. The bumper support beam includes an outer and an inner periphery each having six walls. The beam may include a plurality of ribs that may be disposed between the inner and outer periphery of the beam. The ribs may be arranged to define a plurality of triangular cells that increase the compressive strength of the beam.

A bumper beam for a vehicle including a bumper beam body having a tubular portion extending in a vehicle width direction, the bumper beam having a metal section and a composite section, wherein the metal section and the composite section are coaxial, the composite portion being along an inner surface of the metal section.

The invention relates to a bumper beam (B) comprising a main cross member (1) and a cross member part (2) fixedly attached to said main cross member (1). Said cross member part (2) forms in itself or together with one or more portions of the main cross member (1) a closed chamber (C) in a cross section of the bumper beam and is arranged at an upper side (11) or at a lower side (12) of said main cross member (1). Said closed chamber (C) abuts and extends over only a portion of said upper side (11) or said lower side (12) of said main cross member (1) as seen in the cross direction of said main cross member (1) and over essentially the entire length and in a longitudinal direction of said main cross member (1). Said main cross member (1) together with said cross member part (2) form a closed main chamber (M).

A bumper frame for a vehicle includes a back beam extending in a width direction of the vehicle, a first step bracket disposed in a center region of one surface of the back beam and provided in a structure protruding from the back beam, a pair of second step brackets disposed in each side region of the one surface of the back beam and provided in structures protruding from the back beam in parallel with the first step bracket, and a support bracket fastened and fixed to the one surface of the back beam and configured to support a lower portion of each of the first step bracket and the second step brackets protruding from the back beam, and the support bracket is made of a hollow pipe member and formed in the shape of a circular or non-circular cross-section.

The present disclosure discloses a bumper beam for a motor vehicle including a center portion free of mobility-specificity and side portions that may be altered according to design and specification of the mobility to secure collision performance so that the bumper back beam of which collision performance is secured and which satisfies various mobilities may be flexibly applied. Accordingly, it is possible to configure the back beam satisfying various mobilities based on a standardized model to secure collision performance so that manufacturing cost is reduced by assembling and producing the back beams with minimum molds.

A vehicle structural beam includes four inner walls, four outer walls, and a plurality of ribs. The four outer walls and the four inner walls respectively form outer and inner rectangular tubes. The inner tube is disposed within the outer tube such that the outer walls are non-parallel with the inner walls. Each of the plurality of ribs are disposed between the outer and inner walls. The plurality of ribs is arranged to define a plurality of triangular and/or quadrilateral cells between the outer and inner tubes.

An impact absorbing structure includes an impact absorbing member made of CFRP, and the impact absorbing member includes a pair of left and right side wall portions and upper and lower coupling wall portions each coupling the side wall portions. Each of the pair of side wall portions includes a plurality of curved portions. Each of the curved portions is formed such that a leftward/rightward direction depth thereof decreases toward a front side. Each of the pair of side wall portions includes: a plurality of first carbon fibers arranged to extend in a forward/rearward direction and constituting most of reinforced fibers contained in the side wall portion; and a plurality of second carbon fibers arranged to extend in a direction intersecting with the first carbon fibers. The plurality of second carbon fibers are arranged at both thickness direction end vicinity parts of each of the side wall portions.

A vehicle frame structure includes: a pair of main side rails extending in a vehicle front-rear direction and facing each other; and an extension side rail connected to a front portion of the main side rail in the vehicle front-rear direction and extending in the vehicle front-rear direction. The main side rail includes a main side rail body having a substantially C-shaped cross-section and the extension side rail includes an extension side rail body having a substantially Z-shaped cross-section. A part of a front end surface of the main side rail body and a part of a rear end surface of the extension side rail body face each other in the vehicle front-rear direction.

A bumper beam includes an outer portion and an inner portion each extending between a top end and a bottom end. At least one of the outer portion or the inner portion includes a pair of geometrical features each of which are disposed in spaced relationship to one another and adjacent a respective one of the top or bottom ends. A top wall and a bottom wall each extend from one of the geometrical features to the other of the outer portion or the inner portion to interconnect the outer and inner portions of the bumper beam. The geometrical features can be varied in size and shape to change and tune the energy absorption properties of the bumper beam and ultimately provide for a bumper beam that is adaptable and flexible over a range of vehicle applications.