PASSENGER CAR SIDE ENERGY-ABSORBING BUFFER Russian patent published in 2005 - IPC

FIELD: transport engineering; car protective devices.

SUBSTANCE: invention relates to devices aimed at protection of cars in case of collisions and it can be used to protect side surfaces of cars, microbuses and other vehicles together with front and rear bumpers. Proposed buffer contains two protective sections arranged at one level with bumpers, each being connected to car body load-carrying members and provided with support surface in form of U-shaped section, and energy-absorbing devices connected to U-shaped section being uniformly arranged over its length at a distance from each other. Each energy-absorbing device includes definite number of adjoining energy-absorbing members, each being mirror reflection of adjacent one, made integral from cut of round metal rod and includes base, jumper and brace located in relatively perpendicular planes. Bases of energy-absorbing members are connected to outer surface of U-shaped section. Jumpers of energy-absorbing members are arranged coaxially and they interact with outer surface of section. Bases and braces of energy-absorbing members are arranged horizontally, and jumpers, vertically. Each energy-absorbing device is furnished with movable base plate made integral with leaf spring. Braces of all energy-absorbing devices of buffer sections are tilted at preset angle, respectively, in direction from front to rear bumper. Each section of buffer includes also foamed shock-absorbing material units placed in spaces between adjacent energy-absorbing devices, and outer sheath connected to bent off parts of U-shaped section and it can be additionally provided with safety strip connected to its outer surface. Invention provides protection of car body side surface at collision with obstacle to other car. It provides high energy-absorbing capacity and stability of shock-absorbing characteristics of car.

EFFECT: improved protection of cars.

3 cl, 7 dwg