Abstract: A vehicle door has a supporting press formed frame (10) of high-strength steel that has two standing hat beams (13, 15) interconnected by an upper horizontal hat beam (14), a lower horizontal hat beam (16) and intermediate side impact guard beam (22). The hat beams have their crowns (12) directed towards the interior of the vehicle and they carry an outer panel (28) by their outer side flanges (17). The standing hat beams (13, 15) have a profile height on at least portion (23, 24, 28) of their length that overlaps the corresponding pillar (30, 34). Thereby, in a frontal crash, the frame of the door can transmit force from the A-pillar of the vehicle to the B-pillar.

Abstract: A vehicle door has a supporting frame (10) substantially in the form of a rectangular annular hat beam (13–16) of high-strength steel, which, with its outer side flange (17), carries the outer panel (28) of the door and has its crown (12) towards the vehicle interior. The lower rear portion of the outer side flange (17) has a bolt 32 arranged to fit in a hole (35) in the pillar (34). In case of a side impact, the bolt will make the pillar participate in the energy absorption. The frame (10) is comparatively shallow and it can therefore have a high yield strength and all the other elements of the door can be mounted on the inside of the frame, which make them easily available for service.

Abstract: A vehicle door has an inner panel (11) on which an outer panel is fitted. The inner panel is covered by a loose panel, the trim. The inner panel has a front end wall (12) and a rear end wall (13). A reinforcement beam (20) is fastened between the end walls for transmitting force from a door pillar (33) to which the door is attached to a door pillar (34) behind the door, in the event of a collision. The reinforcement beam has a high single hat profile (21) which is fastened to the upper part of the front end wall, and extends in a curve out towards the external part of the inner panel, where the profile height is lower. The profile height decreases continuously from the high profile height to the low profile height, and the single hat profile (21) extends into a double hat profile (22). The reinforcement beam also functions as a side impact guard.

Abstract: A bumper beam for a vehicle includes a hat beam (10) with a cover (14). The hat beam has a crown (11) and side flanges (12, 13), and the cover (14) is fastened to the side flanges. The crown is fastened to the vehicle body. The cover (14) extends past one of the side flanges (12, 13) and is stiffened by being transversely corrugated.

Abstract: A bumper arrangement for a vehicle comprises a bumper beam (17) fastened in two crash boxes (11, 12). The bumper beam (17) has a U-profile with a central flange (18) and two webs (19, 20) and has its opening towards the vehicle. The central flange has a recess (21) that is shallow at the mountings to the crash boxes (11, 12) and deepens therebetween so that the bumper beam will be so stiff that it will transfer substantial force to both crash boxes also in an off-set crash. This design makes the width of the part of the bumper beam adjacent the vehicle small.

Abstract: A bumper comprises a hat beam (11) adapted to have its crown directed towards the vehicle body, a cover (20) attached to the side flanges (17, 18) of the hat beam and having a longitudinal recess (21) that extends into the hat beam, and an energy absorbing foamed body (22) that fills out the recess and extends with its major part out of the recess. If the foamed body widens out over the side flanges (17, 18) of the hat beam, these widened parts (25) should have recesses (31) that prevent these parts from being fully compacted before the part therebetween is compacted if the bumper hits a pedestrian's leg. A closed cross-section beam having a longitudinal recess can also be employed in the present invention.

Abstract: The bumper beam 11 of a vehicle has a hat profile and it is mounted in two tapered crash boxes 12, 13, which extend into the hat profile with their narrow ends. These narrow ends are fixed to the bottom of the hat profile so that the crash boxes will flatten out the hat profile when they are axially compressed. This arrangement is particularly advantageous for reducing the damages in low-velocity offset crashes that have an effect on only one of the crash boxes since it reduces the risk of damages on other parts than the crash box and the bumper beam.

Abstract: A beam, comprising two beam portions of sheet steel connected together to form the beam. At least one of the beam portions has a hat profile that has its flanges joined to the other beam.

Abstract: A motor vehicle impact absorbing beam having, at least along a major part of its length, two flanks (13, 14) having a catenary cross-sectional configuration substantially in the form of a free-hanging chain suspended only at its ends.

Abstract: A blank with a closed profile is made of hardenable sheet steel and is hydroformed when hot. The tool is cooled and the blank is heated to a hardening temperature and formed so fast that it will not have time to harden before it contacts the tool and becomes rapidly cooled by the tool and by the liquid fluid so that it hardens. In this simple way, a product of high strength steel can be achieved which has a closed profile and complicated form. The product can be, for example, a bow-formed bumper.

Abstract: A sheet steel blank is stamped and held in a pair of tools. The blank has holes that are collared by means of mandrels in connection with the forming. The collaring is carried out in the material. In this way, holes with very narrow tolerances can be achieved. Such holes in a bumper beam can be used for guiding the bumper beam during the mounting thereof on a vehicle.

Abstract: A pillar, in particular a B-pillar, for a vehicle body, in particular a passenger car body, comprises a hat profile beam that has its crown towards the interior of the body. A lower hat profile beam has its own crown located within the crown of the beam and the flanges of the two beams are spot welded together. The hinges of the rear door are fixed to the beam. The front edge of the rear door swings into the crown of the beam when the door is opened. Thus, the beam has a high crown and utilizes the available space efficiently.

Abstract: A product of sheet steel is formed in a pair of cooled tools when hot and is then hardened to a martensitic structure while still in the tools. In this manner, the tools function as a fixture while the steel is hardening. The steel is kept mild in the areas in which it is to be machined, for example punched. Inserts in the tools are used to prevent rapid cooling of the steel sheet and thereby a martensitic structure in the areas adjacent the inserts. The same effect can be obtained by recesses in the tools so that there will be a gap between the sheet steel and the tools.