FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly to a draw-pull bar. Draw-pull bar is provided with a locking mechanism which comprises a locking clamp in a partial elastic ring controlled by pivot arm and having a locking protrusion and a ring gear mounted on tube of draw-pull bar with which locking protrusion engages with grip rotation by gears. Lock with a hinge is fitted to one side of resilient partial ring. During locking, lock is latched at other end of partial ring with provision of fixation of partial ring.
EFFECT: reliable operation.
5 cl, 4 dwg
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