| 摘要 |
PURPOSE:To prevent a support of a supporting metallic fixture from being slid down by using the supporting metallic fixture consisting of a ceiling plate, both side plates and a rear face plate so as to attain ease of mounting of a parabolic antenna to the support. CONSTITUTION:Plural mounting metallic fixtures 22, 23 are fixed to the rear face plate of the supporting metallic fixture 19 comprising the ceiling plate 19a, both the side plates and the rear face plate by using bolts and nuts and U bolts 26, 27 are fixed tentatively to the supporting metallic fixture 19 with fixing nuts 40, 41 through holes 28, 38, 29, 39. The support 30 is inserted between the mounting metallic fixtures 22, 23 and the U bolts 26, 27 in this state and brought into contact with the ceiling plate 19a so as to adjust the mounting angle of a reflecting face 15, then the supporting metallic fixture 19 is fixed strongly to the support 30 by tightening the nuts 40, 41. Since the fixing work is attained while bringing the tip of the support 30 into contact with the ceiling plate 19a, the working performance is improved and the invasion of rainwater into the support 30 is prevented. |
