TURNBUCKLE Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: turnbuckle has housing, two threaded rods mounted inside the housing, rod screwed on one of the threaded rods, ring cutter with a sharp edge over the outer surface. The ring cutter is rigidly connected with the housing, conjugated with the rod, and locked against rotation about the rod by a pin. On the rod are longitudinal projections uniformly arranged over periphery and longitudinal groove for interaction with the pin. The ring cutter is mounted on the rod so that the cutting edge abuts against the end faces of the longitudinal projections. In an emergency under the action of external force the ring cutter is set in longitudinal motion along the rod, abuts against the longitudinal projections, and cuts chip by cutting edge thus absorbing energy and decreasing overloading. EFFECT: improved design. 3 dwg