CONNECTION METAL FITTING AND CONSTRUCTION METHOD OF CEILING BACKING

PROBLEM TO BE SOLVED: To prevent reduction in earthquake resistant performance, by easily connecting to a second rod-like member, without deforming a first rod-like member and a connection metal fitting.SOLUTION: A connection metal fitting 1 is provided for connecting a ceiling joist 2 (a first rod-like member) having a pair of horizontal ribs 5 and 5 projecting to the outside in the width direction, to the lower side of a ceiling joist receiver 3 (a second rod-like member) having a standing rib 6 standing upward and extending in the crossing direction with the ceiling joist 2, and comprises a first member 10 and a second member 20 for sandwiching the ceiling joist 2 from both sides in the width direction, and the first member 10 comprises a notch part 14 for locking one horizontal rib 5 among the pair of horizontal ribs 5 and 5 and a fixing part 15 for fixing to the standing rib 6, and the second member 20 comprises a notch part 24 for locking the other horizontal rib 5 and a fixing part 25 for fixing to the standing rib 6, and the first member 10 and the second member 20 are connected in a state of sandwiching the ceiling joist 2.SELECTED DRAWING: Figure 3 【課題】第一棒状部材および連結金具を変形させることなく第二棒状部材と容易に連結するとともに、耐震性能の低下を防止する。【解決手段】幅方向外側に突出する一対の水平リブ５，５を備えた野縁２（第一棒状部材）を、上方に立ち上がる立上リブ６を備え、野縁２と交差する方向に延在する野縁受け３（第二棒状部材）の下側に連結する連結金具１であって、野縁２を幅方向両側から挟む第一部材１０と第二部材２０とを備えており、第一部材１０は、一対の水平リブ５，５のうち一方の水平リブ５を係止する切込部１４と、立上リブ６に掛け止められる掛止部１５とを備え、第二部材２０は、他方の水平リブ５を係止する切込部２４と、立上リブ６に掛け止められる掛止部２５とを備え、第一部材１０と第二部材２０は、野縁２を挟んだ状態で連結されている。【選択図】図３