Undercut dowel for anchoring heavy loads - has bolt segments and sleeve held together by sprung ring

摘要

The conical bolt (1) can be moved in an impact sleeve (3).It carries several segments(2),with the total of the free space between them exceeding one third of the sleeve dia. The segments an sleeve are held together by a sprung ring(4),or are of an integral structure.When the segments and sleeve are made in one piece, the sprung ring and fitting of the segments is superfluous. USE/Advantage - For concrete and stone,with low-cost mfr.