US 11,852,176 B2
Expansion anchor with additional expansion element
Karl Haeussler, Lunden (CH); Hideki Shimahara, Grabs (CH); Mareike Frensemeier, Buchs (CH); Yijun Li, Buchs (CH); Wentao Yan, Buchs SG (CH); and Arturo Guevara Arriola, Irving, TX (US)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 16/976,992
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Feb. 19, 2019, PCT No. PCT/EP2019/054033
§ 371(c)(1), (2) Date Aug. 31, 2020,
PCT Pub. No. WO2019/170405, PCT Pub. Date Sep. 12, 2019.
Claims priority of application No. 18159864 (EP), filed on Mar. 5, 2018.
Prior Publication US 2021/0003160 A1, Jan. 7, 2021
Int. Cl. F16B 13/06 (2006.01); F16B 13/08 (2006.01); F16B 13/00 (2006.01)
CPC F16B 13/065 (2013.01) [F16B 13/068 (2013.01); F16B 13/0858 (2013.01); F16B 13/066 (2013.01); F16B 2013/007 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An expansion anchor, comprising:
an anchor bolt; and
an expansion sleeve which encompasses the anchor bolt;
wherein the anchor bolt has an expansion-sleeve expansion region and an expansion-element expansion region;
wherein the expansion sleeve has an expansion element which is disposed on the expansion sleeve;
wherein the expansion sleeve is radially displaceable by the expansion-sleeve expansion region;
wherein the expansion element is radially displaceable by the expansion-element expansion region;
wherein the expansion element is disposed on a radial inside of the expansion sleeve and is disposed radially between the anchor bolt and the expansion sleeve such that the expansion element is not exposed radially on an outside of the expansion element and is covered radially on the outside by the expansion sleeve.