Anchor bolt

Abstract

An anchor bolt (11-15) of the present disclosure includes: a bolt main body (21, 31, 41), with a screw thread formed on an outer peripheral surface thereof, configured to be inserted in the anchor hole; a tubular member (25, 35, 45, 451) provided to the bolt main body and configured to, in a state of being inserted in the anchor hole together with the bolt main body, come in contact with and be locked to an inner side surface of the anchor hole; an annular expansively openable member (26) provided to the bolt main body more on an insertion direction side of the anchor bolt than the tubular member, and divided in a peripheral direction; and a push-in portion (27, 47) provided to the bolt main body more on the insertion direction side of the anchor bolt than the expansively openable member, and configured to expand the expansively openable member radially outward by being pushed into an inner hole of the expansively openable member. The anchor bolt is configured such that a contact friction of a predetermined value or more is generated between a first end portion (255, 356, 459) located on the insertion direction side of the tubular member and a second end portion (265) located on a side of the expansively openable member opposite to the insertion direction.

Dependencies are inferred from the claim text.