COUPLING LINK FOR CHAINS Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: coupling link has C-shaped housing, lock with a stop unit interposed between its ends, and locking member. The locking member is received in hollows on C- shaped housing. There is a through opening in the lock. The locking member is made up as a plank with central through opening and through openings concentrically arranged with respect to the letter. The openings are connected with the central opening through grooves. The locking member is also provided with an additional groove from the central opening to the outer side of the plank. The locking member is made up as an axle the diameter of which is greater than the diameter of the central through opening and received in the opening of the lock and in the central through opening in the plank. EFFECT: enhanced reliability. 4 dwg