A pyrotechnic release of the thermally activated shape memory materials for selectively altering a mechanical property of a vehicle element

摘要

Element of the vehicle (10) comprising:at least a thermally activatable shape memory material (12);a knit material (16) in operative connection with the shape memory material (12), wherein the knit material (16) has the effect that a dimension, a form, an orientation, an elasticity module property or a combination with at least one of the foregoing properties of the thermally activatable shape memory material in response to a triggering event is changed; andan activation device for selectively enabling of the active material,characterized in thatthe knit material (16) a in a vessel (54) which is arranged in the shape of a pyrotechnic material (90) is,the vessel (54) an upper wall (56), a lower wall (58) and extending from these side walls (60) as well as a piston arrangement having a piston head (64), of the slidably engaging the vessel side walls (60) is engaged, and a shaft (62) extending from the piston head (64) extends and in operative connection with a displaceable vehicle component is,with the piston head (64) a first chamber (66) and a second chamber..