ANCHOR BOLT AND METHOD OF MAKING SAME Russian patent published in 2016 - IPC F16B13/06 B21H3/02 

FIELD: machine building.

SUBSTANCE: present invention relates to anchor bolt for expansion of anchor and expansion anchor. Invention also relates to production of anchor bolt. Spacer anchor (1) has anchor bolt (3) and an expanding sleeve (2), which covers cylindrical neck (6) of anchor bolt (3) adjacent to expanding housing (7). Anchor bolt (3) for expansion anchor (1) is located coaxially to axis (4) spacer cone-shaped housing (7), wherein side surface (20) of spacer housing (7) has in direction of generatrix (25) alternating ribs (30) and groove (31), wherein upper surfaces (37) of ribs (30) are removed in direction (8) along axis (4) from axis (4), and lower surfaces (45) of grooves (31) are approached in direction (8) to axis (4).

EFFECT: it allows to increase reliability of anchor.

15 cl, 7 dwg