PURPOSE: To improve the efficiency of operation by integrally bonding an auxiliary patch and a mounting ring through an arm for connection and an engaging piece to the auxiliary patch. ;CONSTITUTION: A beam material 20 is mounted between posts, and upper plates 1, 1' and lower plates 2, 2' are applied so as to hold the flange 20a of the upper section and the flange 11a' of the lower section of the connecting sections of the mounting sections of the posts and the beam material 20 from upper and lower sections, and clamped by bolt-nuts 3, 4, 3', 4' for clamping. The two mounting rings 7 of an auxiliary patch 5 are fitted to the bolt-nut 3, 4 on the beam material 20 side and the mounting section side at an interval. Engaging pieces 13 installed to the mounting rings 7 through arm pieces 12 are slid along slots 6, the bolt-nut 3, 4 are adjusted at proper positions, and setscrews 8 are clamped.;COPYRIGHT: (C)1995,JPO
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