Flexible bellows connection for railway carriages

摘要

The bellows connection is used between two carriages of a railway train. It consists of several frames made of flexible tubes (7), each frame having a tube defining the inside profile of the frame, accommodated inside a tube defining the outer contour of the frame. The spacing of the two tubes is defined by a set of inclined bracing rods (6). There are flexible connections between the inner and outer tubes forming the frames, and the inner and outer tubes of adjacent frames are joined by flexible connections. There are telescopic tubes (9) running parallel to the longitudinal axis of the train, passing through the corners of the rectangular frames.