Title:
FASTENER, DRIVING JIG FOR EXECUTION OF THE FASTENER, AND DRILL BIT FOR MACHINING UNDERCUT HOLE
Document Type and Number:
WIPO Patent Application WO/2001/006070
Kind Code:
A1
Abstract:
A fastener of hole-in anchor type buried in an existing concrete structure having been drilled, wherein, before execution, a sleeve (2) and a plug (3) pressingly fitted thereto are positioned through an engagement of a protruded part (7) on the inner peripheral surface of an expansion part (6) with a recessed groove (11) in the tip of the plug (3) so as to prevent the both from being separated from each other and, after execution, the protruded part (7) on the inner peripheral surface of the expanded expansion part (6) is engaged again with the recessed groove (12) in the tip of the plug (3), whereby an effect of preventing the both from being loosened by vibration is given by the positioning effect.
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Inventors:
Sato, Yoshinori (2-32-17-402, Wakabayashi Setagaya-ku, Tokyo, 154-0023, JP)
Application Number:
PCT/JP2000/004643
Publication Date:
January 25, 2001
Filing Date:
July 12, 2000
Export Citation:
Assignee:
KABUSHIKI KAISHA ZEN KENCHIKU SEKKEI JIMUSHO (3-12-7, Kitaaoyama Minato-ku, Tokyo, 107-0061, JP)
Sato, Yoshinori (2-32-17-402, Wakabayashi Setagaya-ku, Tokyo, 154-0023, JP)
Sato, Yoshinori (2-32-17-402, Wakabayashi Setagaya-ku, Tokyo, 154-0023, JP)
International Classes:
B23B51/00; F16B13/00; F16B13/08; F16B13/12; (IPC1-7): E04B1/41; B23B41/06; B28D1/14
Attorney, Agent or Firm:
Shiga, Fujiya (Shiga Patent Office Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-ku Tokyo, 104-0044, JP)
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