PASSENGER CAR ENERGY ABSORBING BUFFER Russian patent published in 2006 - IPC B60R19/18 F16F7/12 

FIELD: transport engineering.

SUBSTANCE: invention relates to protection devices of vehicles in case of collision and it can be used as front and rear bumpers of different passenger cars, microbuses and other vehicles. Proposed buffer connected to vehicle carrying structure includes outer skin to which layer of elastic material is connected, and support surface in form of preset-curvature U-shaped section to outer surface of which energy absorbing devices are connected, being uniformly spaced relative to each other and including, each, definite number of interconnected energy absorbing members, each being mirror reflection of the and made integral from section of round metal rod and including base, bridge, strut, additional bridge and additional strut arranged in relatively perpendicular planes. Bases of energy absorbing devices are connected to support surface, all bridges being torsion bars, are arranged vertically, struts are arranged horizontally and unitied by guide plates, additional struts are arranged horizontally and connected to plates of movable bases. Struts and additional struts of energy-absorbing devices of left-hand and right-hand halves of buffer are pointed outwards relative to support surface and are arranged at definite angles in different directions from middle to edges of buffer. Buffer contains central shock-absorbing device including two hollow bent leaf springs made integral and connected to support surface and bent plate connected to said springs. Leaf springs are arranged at edges of buffer, being connected to support surface and extreme energy absorbing devices. Solid foamed material blocks and parts are arranged in spaces between energy absorbing devices and leaf-springs.

EFFECT: simple design, high absorbing capacity, considerable stroke and stable shock absorbing characteristics which can be set within wide limits with possibility of reuse of construction and complete restoration of preset characteristics.

2 cl, 8 dwg