Abstract: A trailer including a trailer bed which is at least partly made of a composite material and at least one axle which extends in cross direction of the trailer and is connected to the trailer bed for suspending the wheels. The trailer bed includes an upper and a lower load absorbing surface, wherein the upper load absorbing surface includes in longitudinal direction a front and a back area and a connection area between them, wherein the connection area corresponds to a surface area where a bottom face of the upper load absorbing surface is connected to the lower load absorbing surface. The lower load absorbing surface includes in longitudinal direction a first part which is bent with respect to the upper load absorbing surface and which is connected with a first end part to the bottom face of the upper load absorbing surface. The lower load absorbing surface further includes a second part which extends from the first part along the upper load absorbing surface towards the back area thereof.

Abstract: An undercarriage for a vehicle including at least two longitudinal beams, at least one transverse beam and at least one wheel axle. The height of the foremost part of the longitudinal beams has a reduction in height that defines a swan-neck. The longitudinal beams are made of a composite material including a thermoplastic synthetic material with reinforcing fibers. The height of the foremost part of the longitudinal beams is reduced by means of plastic deformation.

Abstract: This invention relates to a fluid accumulator comprising a wall (2) encompassing a reservoir (1) for receiving the fluid, part of the wall being elastically deformable. The wall (2) of the fluid accumulator comprises a first wall portion (2A) that is made of a first elastically deformable composite, with fibrous reinforcement material applied in a first density, and a second wall portion (2B) that is made of a second composite with fibrous reinforcement material applied in a second density and an elastic deformability that is the same as or different from the elastic deformability of the first wall portion, the density of the fibrous reinfrocement material in the first and second wall portion (2A, 2B) being different.

Abstract: Method for making a cross tie (9) for a vehicle chassis (3) and a vehicle chassis provided with such a cross tie, according to which method the cross tie (9) is at least partially made of composite material, characterised in that the cross tie (9) is made with an almost cylindrical center part (10) and a part (11) connected to both ends thereof which widens towards the end of the cross tie (9), whereby the above-mentioned parts (10 and 11) are made in one piece by means of filament winding, and the filaments are provided in the central part (10) at an angle which is larger than 45° in relation to the longitudinal direction of the cross tie (9), and whereby they are transform into an angle which is smaller than 45° in the widening parts (11).