The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2007
Filed:
Dec. 18, 2001
Nobuyoshi Uno, Futtsu, JP;
Masahiro Nagata, Tokyo, JP;
Hidetoshi Tamasaki, Yukuhashi, JP;
Seiichi Kanazawa, Yukuhashi, JP;
Kiyoshi Hatanaka, Yukuhashi, JP;
Toshio Miyagawa, Yukuhashi, JP;
Nobuyoshi Uno, Futtsu, JP;
Masahiro Nagata, Tokyo, JP;
Hidetoshi Tamasaki, Yukuhashi, JP;
Seiichi Kanazawa, Yukuhashi, JP;
Kiyoshi Hatanaka, Yukuhashi, JP;
Toshio Miyagawa, Yukuhashi, JP;
Nippon Steel Corporation, Tokyo, JP;
Nippon Steel Bolten Co., Ltd., Fukuoka, JP;
Abstract
A join structure comprises a box section column and spit T-section joined by a high strength bolt and a method secures a nut to an inside of the box section column. A Torque-Shear type high strength bolt is tightly tightened by a controlled tension and a joining method of a steel member uses that bolt. The join structure is comprised of a box section column, a split T-section attached to its outer surface, and a high strength bolt inserted from the outside of the split T-section and fastened with the nut. The nut is secured to the box section column by joining a sleeve secured to a washer formed integrally with the nut and a sleeve of a nut holding part from the outside of the column. The Torque-Shear type high strength bolt has a pintail for controlling the torque at its top.