US 11,655,843 B2
Expansion anchor and method for disassembling an expansion anchor
Michael Ziltener, Siebnen (CH); Arjen Detmer Dijkhuis, Shanghai (CN); and Karl Haeussler, Lunden (CH)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 16/491,562
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Feb. 27, 2018, PCT No. PCT/EP2018/054738
§ 371(c)(1), (2) Date Sep. 5, 2019,
PCT Pub. No. WO2018/162275, PCT Pub. Date Sep. 13, 2018.
Claims priority of application No. 17159523 (EP), filed on Mar. 7, 2017.
Prior Publication US 2021/0131474 A1, May 6, 2021
Int. Cl. F16B 31/02 (2006.01); F16B 13/04 (2006.01)
CPC F16B 31/021 (2013.01) [F16B 13/045 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An anchor comprising:
an anchor bolt having a head in a rear section of the anchor bolt; and
at least one expansion element arranged on the anchor bolt;
the anchor bolt having, in a front section, an expansion section for the expansion element, the anchor bolt tapering towards a rear in the expansion section, the expansion element being configured to strike the expansion section of the anchor bolt to radially expand the expansion element to anchor the anchor;
the anchor bolt having an engaging profile so that a torque can be applied to the anchor bolt; wherein the engaging profile is arranged on the head and the head has a collar projecting beyond the engaging profile and adjoining a rear of the engaging profile.