VEHICLE BODY REAR PART DESIGN AND MANUFACTURING METHOD THEREOF Russian patent published in 2020 - IPC B62D21/15 

FIELD: transport machine building.

SUBSTANCE: structure of a rear part of a vehicle body comprises a rear side member extending longitudinally and a rear bumper beam connected to the side member. Rear side member comprises front, intermediate and rear portions. Resistance of plastic deformation at the front section is higher than at the intermediate section, where plastic deformation resistance is higher than at the rear section. Structure additionally contains a guiding structure adapted to direct deformation of the rear side member, preventing its deformation in a direction perpendicular to the longitudinal direction. Vehicle body comprises said rear part structure. Method of vehicle body rear part manufacturing includes stage of rear spar manufacturing, whereat: billet welded in pattern is created by means of welding; billet welded along the pattern is profiled to give it the required shape.

EFFECT: higher resistance to impact loads.

21 cl, 3 dwg