Hilti Aktiengesellschaft

Philipp Uebel

Raimer Uhlig

Helmut Mirsberger

Hanno Richter

Jaroslav Rousek

Manfred Haage

An expansion dowel assembly is adapted to secure fastening plates in spaced relation onto a structure. The expansion dowel assembly includes an axially extending sleeve-like member including an expansion section arranged to be secured into the structure and a collar section. The collar section engages the facing plate between a bearing and an abutment. An axially extending part of the collar section between the bearing and the abutment is arranged to collapse in the axial direction so that the space between the bearing and the abutment corresponds to the wall thickness of the facing plate. The axially collapsible part permits the expansion dowel assembly to be used with facing plates of different thicknesses.

Expansion dowel assembly

A device for adjustably mounting facing plates on a structure includes an elongated L-shaped supporting member made up of a first leg or web and a second leg or web. One surface on each of the first and second legs of the supporting member is toothed. An abutment also having a toothed surface is arranged to intermesh with the toothed surface on the first leg of the supporting member. The toothed surface of the second leg extends in the long direction of the supporting member and intermeshes with a similar toothed surface on a supporting plate. Supporting bolts are connected to the supporting plate and project into receiving holes in the facing plates. The second leg of the supporting member has an opening through which one of the supporting bolts can pass. For aligning adjacent facing plates the transversely extending dimensions of the opening in the second plate are selected as multiples of the diameter of the supporting bolts.

Growing community of inventors

Prien, Germany

Philipp Uebel