| 摘要 |
PROBLEM TO BE SOLVED: To provide a beam through hole reinforcing structure in which a fitting exerts sufficient reinforcing effect even if the fitting is bolt-connected to a beam. SOLUTION: The beam through hole reinforcing fitting 1 is formed like a ring, and a main body 3 of the fitting has a through hole 11 formed therein. The main body 3 has projections 7 formed on a front surface thereof, which projections 7 project like concentric blades. When the beam through hole reinforcing fitting 1 is mounted on the beam, the former is clamped to the latter by means of a bolt, and at the time of the clamping, the projections 7 engage in the beam, which generates a resistance due to digging by the projections. As a result an apparent friction coefficient between the beam through hole reinforcing fitting 1 and the beam 11 is increased, and therefore slippage between the beam through hole reinforcing fitting 1 and the beam 11 can be prevented. COPYRIGHT: (C)2007,JPO&INPIT
|
