Wooden member assembly
US8857119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2013 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Mar 11, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C3/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.