Dowel bolt with expansion control

US6827535B2 · kind B2 · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Helmut Fuchs · Hall in Tirol, AT
• Thomas Doppelbauer · Feldkirch, AT
• Herbert Kaufmann · Wolfurt, AT
• Hubert Forster · Moorenweis, DE
• Frank Anschütz · Schaan, LI

Key dates

• Filing date: Nov 21, 2002
• Grant date: Dec 7, 2004
• Expiry date: Dec 12, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B2200/95
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A dowel bolt is formed of a bolt (1) and has at the trailing end an outer thread (2) and on the leading end an expansion head (3) expanding in the setting direction (S) and an expansion sleeve (4) that can be expanded by the expansion head (3). At the trailing end face (15) directed away from the setting direction of the bolt, the bolt has at least one peripheral recess (16) with a depth (t1) providing a setting control and that can be economically manufactured.