TELESCOPE JOINT Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: telescope joint has outer and inner tubes, fixing device in form of a bush enveloping tubes, and a ring component located between bush and inner tube for mating with external surface of inner tube and internal surface of first end face of bush, whose second end face has a shoulder facing outer tube, and its internal lateral surface has a shaped annular groove, whose one of lateral surfaces is matched with shoulder internal surface. End face of outer tube has a shoulder located in shaped annular groove of bush. External surface of inner tube has a shaped annular groove. Ring component is cut in parallel with its generating line at least into two parts and installed for placement in annular groove of inner tube. Precompressed spring is located in bush annular groove between shoulders of bush and outer tube. Shape of second end face of ring component may correspond to shape of annular groove of inner tube. External surface of inner tube may have a number of additional annular grooves. EFFECT: improved design. 2 cl, 4 dwg