Bumper for vehicles

A bumper for vehicles, which comprises:

• an extruded section of light metal alloy that can be attached to the vehicle and features section walls of a compression wall and a tension wall that are spaced a distance apart, and a pair of transverse walls that join the compression and tension walls to form a hollow section;
• at least one transverse strut provided between the transverse walls which joins the section walls to each other and divides the hollow section into chambers;
• a vertical strut provided between the section walls joining the transverse walls to each other and dividing the hollow section into a primary deformation part (A) including the chambers bordering onto the compression wall and a secondary deformation part (B) including the chambers bordering onto the tension wall;
• and wherein an additional chamber enlarging the height of the secondary deformation part (B) is joined to the secondary deformation part (B), wherein the additional chamber has a width substantially the same as a width of the secondary deformation part (B).

A bumper for vehicles, which comprises:

• an extruded section of light metal alloy that can be attached to the vehicle and features section walls of a compression wall and a tension wall that are spaced a distance apart, and a pair of transverse walls that join the compression and tension walls to form a hollow section;
• at least one transverse strut provided between the transverse walls which joins the section walls to each other and divides the hollow section into chambers;
• a vertical strut provided between the section walls joining the transverse walls to each other and dividing the hollow section into a primary deformation part (A) including the chambers bordering onto the compression wall and a secondary deformation part (B) including the chambers bordering onto the tension wall;
• and wherein an intersection of said at least one transverse strut with the vertical strut in the primary deformation part is offset from an intersection with the vertical strut in the secondary deformation part, forming sub-struts thereby, in order to effect a rotary movement between the sub-struts upon collision.