A strengthening member for an automobile includes a cellular structure having a plurality of cells. A cross section of each cell has eight sidewalls interconnected at eight corners to define a closed polygon. The sidewalls define eight internal angles located at the corners. Two of the internal angles are acute and two of the internal angles are reflex.

A side pillar air curtain guide includes a main body having a ramp receiver and an air curtain ramp insert connected to the main body. The air curtain ramp receiver insert includes a plurality of ribs projecting from the main body at an acute included angle with the main body.

A side pillar air curtain guide includes a main body having a ramp receiver and an air curtain ramp insert connected to the main body. The air curtain ramp insert is of honeycomb construction.

A side pillar air curtain guide includes a main body having a ramp receiver and an air curtain ramp insert connected to the ramp receiver. The main body is made from a first material having a strength S.sub.1 and a ductility D.sub.1 while the air curtain ramp insert is made from a second material having a strength S.sub.2 and a ductility D.sub.2 where S.sub.1>S.sub.2 and D.sub.1<D.sub.2.

A panel member is provided in front of a seat of a vehicle at a height such that knees of an occupant who moves forward from the seat come into contact with therewith. The panel member includes a cover member defining a surface thereof and a reinforcement member attached to a back side of the cover member over an entire region thereof. The reinforcement member includes an outer part, a central part, and an inner part in a vehicle width direction. The outer part is provided with a first grid-shaped rib unit. The inner part is provided with a second grid-shaped rib unit that expands in the vehicle width direction more easily than the first grid-shaped rib unit. The central part is provided with no rib unit, and is provided with a coupling member coupling the first and second rib units.

The present invention in one or more embodiments provides a polymeric bracket for instrument panel side passenger knee protection, the polymeric bracket including first and second legs spaced apart from each other and to support an instrument panel at an assembly position, and a waist connecting the first and second legs and to support a cross car beam at the assembly position.

A side pillar air curtain guide includes a main body having a ramp receiver and an air curtain ramp insert connected to the ramp receiver. The main body is made from a first material having a strength S.sub.1 and a ductility D.sub.1 while the air curtain ramp insert is made from a second material having a strength S.sub.2 and a ductility D.sub.2 where S.sub.1>S.sub.2 and D.sub.1<D.sub.2.

An impact mitigation device includes: an impact absorber configured to transition from a folded state in which the impact absorber is folded to an expanded state in which the impact absorber is expanded; a first magnetic body provided on one end side of the impact absorber; a second magnetic body provided on another end side of the impact absorber and at a position facing the first magnetic body in the folded state; and a control unit connected to one of the first magnetic body and the second magnetic body, the control unit being configured to control the one magnetic body to generate a repulsive force between the one magnetic body and the other magnetic body.

An extendable arm assembly includes an extendable arm structure defining a first axis, a second axis perpendicular to the first axis, and a third axis perpendicular to the first axis and the second axis. The extendable arm structure is configured to be actuated between a stowed configuration and an extended configuration in which the extendable arm structure extends along the first axis. The extendable arm structure includes a main body having a plurality of recesses and a plurality of hinge portions, and a first bladder disposed on the main body delimiting the recesses formed in the main body. The extendable arm assembly is configured to apply vacuum to the recesses to fold the main body along the hinge portions.