Title:
ANCHOR BOLT
Document Type and Number:
WIPO Patent Application WO/2024/084841
Kind Code:
A1
Abstract:
An anchor bolt (11-15) according to the present disclosure comprises: a bolt body (21, 31, 41) which has a thread ridge formed on the outer circumferential surface thereof and which is inserted in an anchor hole; a cylindrical member (25, 35, 45, 451) which is provided to the bolt body and which is, in a state of being inserted in the anchor hole together with the bolt body, locked by coming into contact with the inner side surface of the anchor hole; an annular expansion member (26) which is provided at a position of the bolt body further towards the insertion direction of the anchor bolt as compared to the cylindrical member, and which is divided in the circumferential direction; and a presser part (27, 47) which is provided at a position of the bolt body further towards the insertion direction as compared to the expansion member and which is pushed into an inner bore of the expansion member to expand the expansion member radially outward. The anchor bolt is configured so as to generate at least a prescribed value of contact friction between a first end portion (255, 356, 459) of the cylindrical member at the insertion-direction side and a second end portion (265) of the expansion member at the side opposite to the insertion-direction.
Inventors:
ARAI ISAMU (JP)
Application Number:
PCT/JP2023/031978
Publication Date:
April 25, 2024
Filing Date:
August 31, 2023
Export Citation:
Assignee:
A&S SYSTEM CO LTD (JP)
International Classes:
E02D5/76; E02D27/00; E04B1/41; F16B13/04
Attorney, Agent or Firm:
KAYAMA Hironobu (JP)
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