Hilti Aktiengesellschaft

Alois K&ouml;lbl

Werner Kaibach

Heinz Bisping

Stefan Raber

J&uuml;rgen Wieser

Claudia Zimmerer

Hans-J&uuml;rgen Negele

Ulrich Genschmer

An expansion dowel having a cylindrical expansion body ( ) having a through-bore ( ) and formed of at least two segments ( ) connected with each other, an additional expansion element ( ) located in a recess ( ) formed in an outer profile ( ) of the expansion member ( ) and having a radial depth of the recess ( ) diminishing in a setting direction (S) of the expansion dowel; the additional expansion element ( ) having a radial extent at least partially greater than a maximal dept of the recess ( ).

Expansion dowel

A dowel including an anchor rod (,) provided at front, in a setting direction, end with a head portion (,) widening in the setting direction, and a sleeve (,) having a through-bore and axially displaceable along the anchor rod, with the sleeve (,) having, at its end adjacent to the head portion (,) an expansion region (,) formed by a plurality of expansion tabs (,) separated from each other by substantially axially extending slots (,) and radially expandable upon a relative displacement of the sleeve (,) and the anchor rod (,), and a sleeve section adjoining the expansion region (,) and having, in its rear end region (,), a larger diameter (G) than in its front end region (,) adjoining the expansion region (,), with the sleeve section having a narrowing intermediate region (,) extending between the rear end region (,) and the front end region (,) and having a smallest outer diameter (M) which is smaller than an outer diameter (F) in the front end region (,).

Dowel

Growing community of inventors

Buchloe, Germany

Alois Kölbl

Growing community of inventors

Buchloe, Germany

Alois K&ouml;lbl

Alois Kölbl