NAIL-LIKE FASTENING MEMBER Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: fastening member has a rod with a longitudinal wedge-shaped hollow at its one end. The depth of the hollow decreases to the end of the rod. The hollow receives wedge-shaped expansion means with gear outer side which projects out of the side of the rod. The wedge-shaped expansion means is received in the hollow and abuts against the end face wall when it moves on the bottom. The thickness of the wedge-shaped expansion means from the side of the end face wall of the hollow is greater than that of its end from the side of the end of the rod. The wedge-shaped longitudinal hollow is U-shaped in cross-section. The fastening member may be provided with a detachable member that holds the expansion means in the hollow. The teeth of the expansion means may have different side. The end of the rod may be sharpened. The rod may be provided with an additional expansion means. EFFECT: enhanced reliability. 12 cl, 8 dwg