Anchor bolt anchorable by explosive charge
AssigneeArtur Fischer GmbH & Co. KG
InventorsBernd Hein, Wilfried Weber, Rolf Prummer, Hans Peter Mehlin
Life of this patent
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Abstract
An anchor bolt to be anchored by an explosive charge in a blind bore in a solid material, in particular a rock face or concrete, has a deformation chamber containing the explosive charge. To achieve inexpensive manufacture of the anchor bolt, simple mounting and high withdrawal values of the anchor bolt to be anchored, the deformation chamber open towards the leading end of the anchor bolt is closed by a stopper. A striking pin projecting beyond the leading end of the anchor bolt is inserted and guided in the stopper, so that as the rear end of the anchor bolt is hit the striking pin contacts an ignition capsule arranged between the stopper and the explosive charge.
Claims14
An anchor bolt to be explosively anchored in a blind bore in a solid material, comprising an anchor bolt body having a leading end and a rear end and a deformation chamber which is open toward said leading end of said anchor bolt body;
- an explosive charge contained in said deformation chamber;
- a stopper closing said leading end of said anchor bolt;
- a striking pin inserted and guided in said stopper and projecting beyond said leading end of said anchor bolt body;
- and an ignition capsule arranged between said stopper and said explosive charge so that when said rear end of said anchor bolt body is hit, said striking pin contacts said ignition capsule.
Dependencies are inferred from the claim text.