Expansion dowel assembly

US4708551A · kind A · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Hanno Richter · Möhrendorf, DE
• Helmut Mirsberger · Munich, DE
• Raimer Uhlig · Munich, DE
• Manfred Haage · Dornstetten, DE
• Philipp Uebel · Prien am Chiemsee, DE

Key dates

• Filing date: Jan 8, 1985
• Grant date: Nov 24, 1987
• Expiry date: Jan 8, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S411/913
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

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.