DUEBEL, INSBESONDERE HEIZKOERPERDUEBEL.

摘要

The anchor bolt has a cylindrical sleeve (1) with diametrally opposite axial slots (6) inside which is a double expansion member (2). The latter has a tapped coaxial hole, in which engages a screw (3) bearing against a support head (4). The expansion member has a face working against an internal cone (14) in the sleeve and an end expansion head (25) engaging the free end of the sleeve. The expansion head has wedges (27) engaging the slots in the sleeve, whose ramp faces bear against the slot edges.