Expansible anchor comprises two expansible sleeves, in which an expansible sleeve has a bent portion which is formed at the conical end of expanding section, which is formed opposite to the other expansible sleeve

摘要

The expansible anchor (10) comprises a cylindrical shank (12) having conical sections formed opposing the pulling direction (Z), an expanding section (18) having a conical end (20), an inner expansible sleeve (28), and an outer expansible sleeve (30). The shank and expansible sleeves are displaceable in the circumferential direction along the pulling direction. At least one of the two expansible sleeves has a bent portion (40) which is formed at the conical end that is formed opposite to the other expansible sleeve.