| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide additional sub-beam installing metal fittings, with which can additional sub-beam is attached freely and firmly to a main beam of a rack at a construction site and, which can avoid deformations of pipes and wires, laid on the additionally installed sub-beam. SOLUTION: Hanging elements 2 hung down along inner side surfaces of a main beam P are extended from engagement elements 1 engaged with an opening of the main beam P. Supporters 3 which support an additional sub-beam Q at its end parts are linked with linking parts formed in the hanging elements 2 so as to have a linking height adjustable. The supporter 3 has a plate-shaped engagement tab 3A inserted into an end of a lip channel steel of the additional sub-beam to be engaged with a lip part Q1, a fixing screw 3B which protrudes from an upper surface of the engagement tab 3A to a bottom surface Q2 of the sub-beam Q to press the engagement tab 3A against the lip part Q1, and a linking tab 3C which is bent and extended from the end of the engagement tab 3C and engaged with the linking part of the hanging element 2.</p> |
