EMERGENCY ENERGY-ABSORBING DEVICE FOR RAILWAY CARS Russian patent published in 2002 - IPC

FIELD: shock-absorbing buffers using residual strain of buffer member. SUBSTANCE: device is mounted between clutch 11 and frame 2 of car and has three plates: movable plate 3, intermediate plate 4, and fixed plate 5; energy-absorbing members 7-9 of different energy intensity are placed between them. Members 7-9 are chosen so that members 7-8 installed between movable plate 3 and intermediate plate 4 are first to absorb impact energy and then members 9 mounted between intermediate and fixed plates 4 and 5 do so; fastening members 10 designed for metered destructive force that secure fixed plate 5 to body are the last to absorb impact energy. EFFECT: provision for gradual growth of operating force ; reduced mass of device. 4 cl, 5 dwg