Hilti Aktiengesellschaft

Matteo Spampatti

Bernhard Winkler

Peter Gstach

Philipe Simek

Marc Schaeffer

Hideki Shimahara

Guenter Domani

Huu Toan Nguyen

Patrick Scholz

Tanja Steinberg

Yijun Li

Michael Sproewitz

Christian Wachter

James Ary

An expansion anchor having an anchor bolt, an expansion sleeve surrounding the anchor bolt, and an expansion body located in a front region of the anchor bolt, wherein the expansion body has a converging zone for expanding the expansion sleeve. The expansion body has at least one expansion sleeve abutment wall facing the expansion sleeve. The invention also relates to a method for using such an expansion anchor.

Expansion anchor with sleeve abutment walls

A method includes drilling a hole through a surface of a metal deck system via a drill component of a combination tool system. The method also includes disposing a portion of an anchoring system through the hole of the metal deck system. The anchoring system includes an anchor body supported by a housing sleeve. The method also includes removing the drill component of the combination tool system to expose a fastening component of the combination tool system. The method also includes fastening the anchoring system to the metal deck by pushing one or more fasteners through the housing sleeve and into the metal deck via the fastening component of the combination tool system.

Method for a combination tool utilized with an anchoring system

An expansion anchor is provided, which is fixable in a borehole, including an expansion sleeve for anchoring on a wall of the borehole and including an anchor bolt which is guided through the expansion sleeve and which has an expansion area for expanding the expansion sleeve, the expansion sleeve having a first annular groove on its outside, which extends up to the front end face of the expansion sleeve facing the expansion area. According to the invention, it is provided that the expansion sleeve has a second annular groove on its outside, and that an annular connection piece is situated between the first annular groove and the second annual groove.

Expansion anchor

A system includes an anchor body, having a head and a hollow chamber shaft coupled to the head. The system includes a housing component configured to support the anchor body. The system also includes one or more fasteners supported by the housing component. At least one of the fasteners is coupled to the head of the anchor body, and an apex of each fastener is positioned to be above the head of the anchor body.

Systems and methods for a cast-in anchor

A system includes an anchor body comprising a head and a hollow chamber shaft coupled to the head. The system also includes a housing sleeve configured to support the anchor body. The housing sleeve includes one or more fasteners pre-threaded into a base of the housing sleeve, and the housing sleeve comprises an arch configured to adapt to a ridge of a metal deck.

Systems and methods for a cast-in anchor for a metal deck

An expansion anchor with a bolt and at least one expansion element is disclosed. An oblique surface is arranged in the region of the first end of the bolt and forces the expansion element radially outward on the bolt if the bolt is displaced in a pull-out direction relative to the expansion element. The bolt has, in the region of its rear end facing away from the first end, a load-absorber which is suitable for introducing tensile forces which are directed in the pull-out direction into the bolt. A plurality of grooves that are closed with respect to the first end of the bolt are disposed in the oblique surface and the plurality of grooves reduce a contact surface between the expansion element and the oblique surface. The contact surface between the expansion element and the oblique surface is reduced by the plurality of grooves by 20 to 50%.

Expansion anchor with grooves in the expansion cone

A screw, especially a concrete screw, having a shank with a front end that is to be inserted into a hole drilled into a substrate, and a rear end as well as at least one thread arranged on the shank. It is provided that the screw has a squeezing piston that is situated in front of the front end of the shank, whereby a compound reservoir is provided between the squeezing piston and the shank.

Screw with a compound-squeezing piston

An expansion anchor with a bolt and at least one expansion element is disclosed. An oblique surface is arranged in the region of the first end of the bolt and forces the expansion element radially outward on the bolt if the bolt is displaced in a pull-out direction relative to the expansion element. The bolt has, in the region of its rear end facing away from the first end, a load-absorber which is suitable for introducing tensile forces which are directed in the pull-out direction into the bolt. At least one groove which is closed with respect to the first end is made in the oblique surface, which groove reduces the contact surface between the expansion element and the oblique surface.

Growing community of inventors

Addison, TX, United States of America

Matteo Spampatti