F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/27
F16B 13/10 (2006.01) B25B 13/48 (2006.01) B25B 31/00 (2006.01) F16B 13/08 (2006.01)
Patent
CA 1281216
ABSTRACT An expansion anchor assembly for use in a borehole with an annular undercut includes a threaded anchor stud with a head part at its leading end inserted first into the borehole. Locking elements are arranged around the anchor stud at the head part, a conically shaped member is arranged to expand the locking elements in the radial direction, and an annular abutment member is in threaded engagement with the anchor stud and is arranged to axially displace the conically shaped member. By threading the abutment member toward the leading end of the anchor stud, the locking elements are displaced radially outwardly in the annular undercut. The radially outer surface of the abutment member is located within the axial projection of the radial outer surface of the conically shaped member. Accordingly, the abut- ment member and conically shaped member can be counter- sunk relative to a part to be secured to the material in which the borehole is formed. The extent of the countersink relative to the part varies according to the location of the annular undercut so that a complete anchoring of the part is ensured in every case.
514225
Bergner Arndt
Hilti - Aktiengesellschaft
Rolston George A.
LandOfFree
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