Attachment assembly with anchor bolt and expansion wedge

US5651650A · kind A · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Armin Herb · Apfeldorf, DE
• Hubert Forster · Moorenweis, DE

Key dates

• Filing date: May 13, 1996
• Grant date: Jul 29, 1997
• Expiry date: May 13, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B13/0816
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An attachment assembly formed of an anchor bolt (1) and an expansion wedge (2) with the anchor bolt having an outside surface (4) at its leading end in the setting direction and widening in a wedge-like manner. The expansion wedge (2) can be displaced axially along the wedge-like outside surface (4) for effecting expansion of the attachment assembly. At its trailing end (6), the anchor bolt (1) has a flange-like engagement part (5) for applying a load to a receiving material into which the attachment assembly is expanded. The engagement part (5) has a throughbore (3) through which the expansion wedge (2) extends and is secured in a preassembled state. The expansion wedge (2) has a trailing end section (14) extending rearwardly from the engagement part (5) in the preassembled state so that in the expanded state the expansion wedge is held in a press fit in the throughbore (3).