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:
Oct. 14, 2014
Filed:
Mar. 11, 2013
Sumitomo Forestry Co., Ltd., Tokyo, JP;
Sumitomo Forestry Co., Ltd., Tokyo, JP;
Abstract
Wooden member to be easily joined to another member, with good appearance of decreased size fixation structure for tensile member to improve the load bearing performance. Metal screw members including cylindrical shaft portions having an axial direction through hole and blade spirally protruding from the shaft portion are axially threaded into wooden member at two locations. Groove or hollow hole is between the two screw members, and steel rod extends from the through hole of one of the screw members through the groove or hollow hole into the through hole of the other. Both ends of the steel rod with tensioning force are locked to the screw member by nuts. Cutout recesses are formed in the wooden member, and the screw members are threaded into the wooden member through the recesses and the steel rod is locked to the screw members.