Pressing device for tubular workpieces

摘要

The device has two coupling elements provided with sliding surfaces for locking movement of a pressing loop (5) and locking surfaces, where the locking surfaces are parts of a knob-shaped body. The body is designed in a tooth or wave-shape at a point of its largest cross section on circumference. One of the coupling elements has a recess for accommodating the other coupling element (K1). An inner surface of the recess is provided with projections for radial interference with a surface of the latter coupling element.