RAILWAY CAR LARGE-STROKE DRAFT GEAR Russian patent published in 2004 - IPC

FIELD: railway transport; draft gears. SUBSTANCE: proposed draft gear has housing with closed end part and opposite open end part between which main axle passes. Open end part is made with tapering inwards elongated inner friction surfaces. Wedge is installed in open end part of said housing for axial displacement, and friction members are installed in housing between wedge and elongated inner friction surfaces. Spring stop adjoining friction members is installed on end of pack of elastomer pads. Surfaces of friction members mating with wedge, elongated tapering inner friction surface and spring stop are arranged relative to main axle at first preset angle of ±, at second preset angle of ± and third preset angle of ±. EFFECT: provision of draft gear with large stroke. 16 cl, 13 dwg