Abstract: An X-shaped spring device for a transportation vehicle wheel suspension having for each wheel side a first leaf spring and a second leaf spring made of fiber-reinforced plastics material and arranged one above the other. The first leaf spring is supported at the wheel side with one end and the second leaf spring is supported at the vehicle structure side with one end, and a first securing device on which the first leaf spring and the second leaf spring are joined and clamped, and which has a bearing for pivotable bearing at the vehicle structure side. The first securing devices of both wheel sides are connected to each other to provide a stabilizer action by using a spring.

Abstract: An X-shaped spring device for a transportation vehicle wheel suspension having for each wheel side a first leaf spring and a second leaf spring made of fiber-reinforced plastics material and arranged one above the other. The first leaf spring is supported at the wheel side with one end and the second leaf spring is supported at the vehicle structure side with one end, and a first securing device on which the first leaf spring and the second leaf spring are joined and clamped, and which has a bearing for pivotable bearing at the vehicle structure side. The first securing devices of both wheel sides are connected to each other to provide a stabilizer action by using a spring.

Abstract: A battery housing part for a traction battery of an electric or hybrid vehicle. A first partial region of the battery housing part is composed of a plastic and at least one second partial region is composed of a material that is different therefrom. In this way, high degree of stiffness of the battery housing part can be achieved together with low weight. The second partial region that is composed of a material of a different type can be provided in a targeted manner where the at least one second partial region enables the greatest advantage in respect of the stiffness of the battery housing part. The use of a plastic for other partial regions of the battery housing part makes it possible to keep the weight of the battery housing part low.

Abstract: A battery housing part for a traction battery of an electric or hybrid vehicle. A first partial region of the battery housing part is composed of a plastic and at least one second partial region is composed of a material that is different therefrom. In this way, high degree of stiffness of the battery housing part can be achieved together with low weight. The second partial region that is composed of a material of a different type can be provided in a targeted manner where the at least one second partial region enables the greatest advantage in respect of the stiffness of the battery housing part. The use of a plastic for other partial regions of the battery housing part makes it possible to keep the weight of the battery housing part low.