Patent ID: 8857119

Claim:
A wooden member assembly, comprising: a wooden member formed of a wooden material; two screw members separately disposed from each other in an axial direction of the wooden member, each screw member having a cylindrical shaft portion with a through hole formed therein in an axial direction thereof, each of the screw member having a blade spirally protruding from an outer peripheral surface of the shaft portion, the two screw members axially threaded into the wooden member at two axially separated locations respectively; and a tensile member having two ends, each of the ends inserted through the through hole of each of the two screw members, wherein a hollow hole is formed in the wooden member, the hollow hole extending from one of the two screw members to the other of the two screw members, and wherein the tensile member is disposed in a range from the through hole of the one of the screw members via the hollow hole to the through hole of the other of the screw members, and is fixed between the two screw members, and a tensioning force introduced in the tensile member is kept in the tensile member, in such a way that a reactive force of the tensioning force acts on each of the screw members.