| 摘要 |
<p>Bolts (35) are screwed into threaded holes (26B) of a support post member (26) while stationary pipes (20, 22) are sandwiched between a pipe catching member (27) and a clamping member (31), and thereby a pipe clamping device (25) affixes the stationary pipes (20, 22) to a boom (12). The pipe catching member (27) and the clamping member (31) are each provided with a flat section (27A, 31A) and semicylindrical sections (27B, 31B), and a through-hole (28, 32) is formed in each of the semicylindrical sections (27B, 31B). Consequently, in each of the semicylindrical sections (27B, 31B), two end edges (29, 33) located on both end sides in the length direction of each of the stationary pipes (20, 22) and two intermediate edges (30, 34) located in the middle in the length direction thereof are formed.</p> |
